| Index: third_party/WebKit/LayoutTests/imported/wpt/editing/include/implementation.js
|
| diff --git a/third_party/WebKit/LayoutTests/imported/wpt/editing/include/implementation.js b/third_party/WebKit/LayoutTests/imported/wpt/editing/include/implementation.js
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..44a7afd82d25fdee8b023e3a84a650e4a134de0e
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/imported/wpt/editing/include/implementation.js
|
| @@ -0,0 +1,8526 @@
|
| +"use strict";
|
| +
|
| +var htmlNamespace = "http://www.w3.org/1999/xhtml";
|
| +
|
| +var cssStylingFlag = false;
|
| +
|
| +var defaultSingleLineContainerName = "div";
|
| +
|
| +// This is bad :(
|
| +var globalRange = null;
|
| +
|
| +// Commands are stored in a dictionary where we call their actions and such
|
| +var commands = {};
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +////////////////////////////// Utility functions //////////////////////////////
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +//@{
|
| +
|
| +function nextNode(node) {
|
| + if (node.hasChildNodes()) {
|
| + return node.firstChild;
|
| + }
|
| + return nextNodeDescendants(node);
|
| +}
|
| +
|
| +function previousNode(node) {
|
| + if (node.previousSibling) {
|
| + node = node.previousSibling;
|
| + while (node.hasChildNodes()) {
|
| + node = node.lastChild;
|
| + }
|
| + return node;
|
| + }
|
| + if (node.parentNode
|
| + && node.parentNode.nodeType == Node.ELEMENT_NODE) {
|
| + return node.parentNode;
|
| + }
|
| + return null;
|
| +}
|
| +
|
| +function nextNodeDescendants(node) {
|
| + while (node && !node.nextSibling) {
|
| + node = node.parentNode;
|
| + }
|
| + if (!node) {
|
| + return null;
|
| + }
|
| + return node.nextSibling;
|
| +}
|
| +
|
| +/**
|
| + * Returns true if ancestor is an ancestor of descendant, false otherwise.
|
| + */
|
| +function isAncestor(ancestor, descendant) {
|
| + return ancestor
|
| + && descendant
|
| + && Boolean(ancestor.compareDocumentPosition(descendant) & Node.DOCUMENT_POSITION_CONTAINED_BY);
|
| +}
|
| +
|
| +/**
|
| + * Returns true if ancestor is an ancestor of or equal to descendant, false
|
| + * otherwise.
|
| + */
|
| +function isAncestorContainer(ancestor, descendant) {
|
| + return (ancestor || descendant)
|
| + && (ancestor == descendant || isAncestor(ancestor, descendant));
|
| +}
|
| +
|
| +/**
|
| + * Returns true if descendant is a descendant of ancestor, false otherwise.
|
| + */
|
| +function isDescendant(descendant, ancestor) {
|
| + return ancestor
|
| + && descendant
|
| + && Boolean(ancestor.compareDocumentPosition(descendant) & Node.DOCUMENT_POSITION_CONTAINED_BY);
|
| +}
|
| +
|
| +/**
|
| + * Returns true if node1 is before node2 in tree order, false otherwise.
|
| + */
|
| +function isBefore(node1, node2) {
|
| + return Boolean(node1.compareDocumentPosition(node2) & Node.DOCUMENT_POSITION_FOLLOWING);
|
| +}
|
| +
|
| +/**
|
| + * Returns true if node1 is after node2 in tree order, false otherwise.
|
| + */
|
| +function isAfter(node1, node2) {
|
| + return Boolean(node1.compareDocumentPosition(node2) & Node.DOCUMENT_POSITION_PRECEDING);
|
| +}
|
| +
|
| +function getAncestors(node) {
|
| + var ancestors = [];
|
| + while (node.parentNode) {
|
| + ancestors.unshift(node.parentNode);
|
| + node = node.parentNode;
|
| + }
|
| + return ancestors;
|
| +}
|
| +
|
| +function getInclusiveAncestors(node) {
|
| + return getAncestors(node).concat(node);
|
| +}
|
| +
|
| +function getDescendants(node) {
|
| + var descendants = [];
|
| + var stop = nextNodeDescendants(node);
|
| + while ((node = nextNode(node))
|
| + && node != stop) {
|
| + descendants.push(node);
|
| + }
|
| + return descendants;
|
| +}
|
| +
|
| +function getInclusiveDescendants(node) {
|
| + return [node].concat(getDescendants(node));
|
| +}
|
| +
|
| +function convertProperty(property) {
|
| + // Special-case for now
|
| + var map = {
|
| + "fontFamily": "font-family",
|
| + "fontSize": "font-size",
|
| + "fontStyle": "font-style",
|
| + "fontWeight": "font-weight",
|
| + "textDecoration": "text-decoration",
|
| + };
|
| + if (typeof map[property] != "undefined") {
|
| + return map[property];
|
| + }
|
| +
|
| + return property;
|
| +}
|
| +
|
| +// Return the <font size=X> value for the given CSS size, or undefined if there
|
| +// is none.
|
| +function cssSizeToLegacy(cssVal) {
|
| + return {
|
| + "x-small": 1,
|
| + "small": 2,
|
| + "medium": 3,
|
| + "large": 4,
|
| + "x-large": 5,
|
| + "xx-large": 6,
|
| + "xxx-large": 7
|
| + }[cssVal];
|
| +}
|
| +
|
| +// Return the CSS size given a legacy size.
|
| +function legacySizeToCss(legacyVal) {
|
| + return {
|
| + 1: "x-small",
|
| + 2: "small",
|
| + 3: "medium",
|
| + 4: "large",
|
| + 5: "x-large",
|
| + 6: "xx-large",
|
| + 7: "xxx-large",
|
| + }[legacyVal];
|
| +}
|
| +
|
| +// Opera 11 puts HTML elements in the null namespace, it seems.
|
| +function isHtmlNamespace(ns) {
|
| + return ns === null
|
| + || ns === htmlNamespace;
|
| +}
|
| +
|
| +// "the directionality" from HTML. I don't bother caring about non-HTML
|
| +// elements.
|
| +//
|
| +// "The directionality of an element is either 'ltr' or 'rtl', and is
|
| +// determined as per the first appropriate set of steps from the following
|
| +// list:"
|
| +function getDirectionality(element) {
|
| + // "If the element's dir attribute is in the ltr state
|
| + // The directionality of the element is 'ltr'."
|
| + if (element.dir == "ltr") {
|
| + return "ltr";
|
| + }
|
| +
|
| + // "If the element's dir attribute is in the rtl state
|
| + // The directionality of the element is 'rtl'."
|
| + if (element.dir == "rtl") {
|
| + return "rtl";
|
| + }
|
| +
|
| + // "If the element's dir attribute is in the auto state
|
| + // "If the element is a bdi element and the dir attribute is not in a
|
| + // defined state (i.e. it is not present or has an invalid value)
|
| + // [lots of complicated stuff]
|
| + //
|
| + // Skip this, since no browser implements it anyway.
|
| +
|
| + // "If the element is a root element and the dir attribute is not in a
|
| + // defined state (i.e. it is not present or has an invalid value)
|
| + // The directionality of the element is 'ltr'."
|
| + if (!isHtmlElement(element.parentNode)) {
|
| + return "ltr";
|
| + }
|
| +
|
| + // "If the element has a parent element and the dir attribute is not in a
|
| + // defined state (i.e. it is not present or has an invalid value)
|
| + // The directionality of the element is the same as the element's
|
| + // parent element's directionality."
|
| + return getDirectionality(element.parentNode);
|
| +}
|
| +
|
| +//@}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +///////////////////////////// DOM Range functions /////////////////////////////
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +//@{
|
| +
|
| +function getNodeIndex(node) {
|
| + var ret = 0;
|
| + while (node.previousSibling) {
|
| + ret++;
|
| + node = node.previousSibling;
|
| + }
|
| + return ret;
|
| +}
|
| +
|
| +// "The length of a Node node is the following, depending on node:
|
| +//
|
| +// ProcessingInstruction
|
| +// DocumentType
|
| +// Always 0.
|
| +// Text
|
| +// Comment
|
| +// node's length.
|
| +// Any other node
|
| +// node's childNodes's length."
|
| +function getNodeLength(node) {
|
| + switch (node.nodeType) {
|
| + case Node.PROCESSING_INSTRUCTION_NODE:
|
| + case Node.DOCUMENT_TYPE_NODE:
|
| + return 0;
|
| +
|
| + case Node.TEXT_NODE:
|
| + case Node.COMMENT_NODE:
|
| + return node.length;
|
| +
|
| + default:
|
| + return node.childNodes.length;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * The position of two boundary points relative to one another, as defined by
|
| + * DOM Range.
|
| + */
|
| +function getPosition(nodeA, offsetA, nodeB, offsetB) {
|
| + // "If node A is the same as node B, return equal if offset A equals offset
|
| + // B, before if offset A is less than offset B, and after if offset A is
|
| + // greater than offset B."
|
| + if (nodeA == nodeB) {
|
| + if (offsetA == offsetB) {
|
| + return "equal";
|
| + }
|
| + if (offsetA < offsetB) {
|
| + return "before";
|
| + }
|
| + if (offsetA > offsetB) {
|
| + return "after";
|
| + }
|
| + }
|
| +
|
| + // "If node A is after node B in tree order, compute the position of (node
|
| + // B, offset B) relative to (node A, offset A). If it is before, return
|
| + // after. If it is after, return before."
|
| + if (nodeB.compareDocumentPosition(nodeA) & Node.DOCUMENT_POSITION_FOLLOWING) {
|
| + var pos = getPosition(nodeB, offsetB, nodeA, offsetA);
|
| + if (pos == "before") {
|
| + return "after";
|
| + }
|
| + if (pos == "after") {
|
| + return "before";
|
| + }
|
| + }
|
| +
|
| + // "If node A is an ancestor of node B:"
|
| + if (nodeB.compareDocumentPosition(nodeA) & Node.DOCUMENT_POSITION_CONTAINS) {
|
| + // "Let child equal node B."
|
| + var child = nodeB;
|
| +
|
| + // "While child is not a child of node A, set child to its parent."
|
| + while (child.parentNode != nodeA) {
|
| + child = child.parentNode;
|
| + }
|
| +
|
| + // "If the index of child is less than offset A, return after."
|
| + if (getNodeIndex(child) < offsetA) {
|
| + return "after";
|
| + }
|
| + }
|
| +
|
| + // "Return before."
|
| + return "before";
|
| +}
|
| +
|
| +/**
|
| + * Returns the furthest ancestor of a Node as defined by DOM Range.
|
| + */
|
| +function getFurthestAncestor(node) {
|
| + var root = node;
|
| + while (root.parentNode != null) {
|
| + root = root.parentNode;
|
| + }
|
| + return root;
|
| +}
|
| +
|
| +/**
|
| + * "contained" as defined by DOM Range: "A Node node is contained in a range
|
| + * range if node's furthest ancestor is the same as range's root, and (node, 0)
|
| + * is after range's start, and (node, length of node) is before range's end."
|
| + */
|
| +function isContained(node, range) {
|
| + var pos1 = getPosition(node, 0, range.startContainer, range.startOffset);
|
| + var pos2 = getPosition(node, getNodeLength(node), range.endContainer, range.endOffset);
|
| +
|
| + return getFurthestAncestor(node) == getFurthestAncestor(range.startContainer)
|
| + && pos1 == "after"
|
| + && pos2 == "before";
|
| +}
|
| +
|
| +/**
|
| + * Return all nodes contained in range that the provided function returns true
|
| + * for, omitting any with an ancestor already being returned.
|
| + */
|
| +function getContainedNodes(range, condition) {
|
| + if (typeof condition == "undefined") {
|
| + condition = function() { return true };
|
| + }
|
| + var node = range.startContainer;
|
| + if (node.hasChildNodes()
|
| + && range.startOffset < node.childNodes.length) {
|
| + // A child is contained
|
| + node = node.childNodes[range.startOffset];
|
| + } else if (range.startOffset == getNodeLength(node)) {
|
| + // No descendant can be contained
|
| + node = nextNodeDescendants(node);
|
| + } else {
|
| + // No children; this node at least can't be contained
|
| + node = nextNode(node);
|
| + }
|
| +
|
| + var stop = range.endContainer;
|
| + if (stop.hasChildNodes()
|
| + && range.endOffset < stop.childNodes.length) {
|
| + // The node after the last contained node is a child
|
| + stop = stop.childNodes[range.endOffset];
|
| + } else {
|
| + // This node and/or some of its children might be contained
|
| + stop = nextNodeDescendants(stop);
|
| + }
|
| +
|
| + var nodeList = [];
|
| + while (isBefore(node, stop)) {
|
| + if (isContained(node, range)
|
| + && condition(node)) {
|
| + nodeList.push(node);
|
| + node = nextNodeDescendants(node);
|
| + continue;
|
| + }
|
| + node = nextNode(node);
|
| + }
|
| + return nodeList;
|
| +}
|
| +
|
| +/**
|
| + * As above, but includes nodes with an ancestor that's already been returned.
|
| + */
|
| +function getAllContainedNodes(range, condition) {
|
| + if (typeof condition == "undefined") {
|
| + condition = function() { return true };
|
| + }
|
| + var node = range.startContainer;
|
| + if (node.hasChildNodes()
|
| + && range.startOffset < node.childNodes.length) {
|
| + // A child is contained
|
| + node = node.childNodes[range.startOffset];
|
| + } else if (range.startOffset == getNodeLength(node)) {
|
| + // No descendant can be contained
|
| + node = nextNodeDescendants(node);
|
| + } else {
|
| + // No children; this node at least can't be contained
|
| + node = nextNode(node);
|
| + }
|
| +
|
| + var stop = range.endContainer;
|
| + if (stop.hasChildNodes()
|
| + && range.endOffset < stop.childNodes.length) {
|
| + // The node after the last contained node is a child
|
| + stop = stop.childNodes[range.endOffset];
|
| + } else {
|
| + // This node and/or some of its children might be contained
|
| + stop = nextNodeDescendants(stop);
|
| + }
|
| +
|
| + var nodeList = [];
|
| + while (isBefore(node, stop)) {
|
| + if (isContained(node, range)
|
| + && condition(node)) {
|
| + nodeList.push(node);
|
| + }
|
| + node = nextNode(node);
|
| + }
|
| + return nodeList;
|
| +}
|
| +
|
| +// Returns either null, or something of the form rgb(x, y, z), or something of
|
| +// the form rgb(x, y, z, w) with w != 0.
|
| +function normalizeColor(color) {
|
| + if (color.toLowerCase() == "currentcolor") {
|
| + return null;
|
| + }
|
| +
|
| + if (normalizeColor.resultCache === undefined) {
|
| + normalizeColor.resultCache = {};
|
| + }
|
| +
|
| + if (normalizeColor.resultCache[color] !== undefined) {
|
| + return normalizeColor.resultCache[color];
|
| + }
|
| +
|
| + var originalColor = color;
|
| +
|
| + var outerSpan = document.createElement("span");
|
| + document.body.appendChild(outerSpan);
|
| + outerSpan.style.color = "black";
|
| +
|
| + var innerSpan = document.createElement("span");
|
| + outerSpan.appendChild(innerSpan);
|
| + innerSpan.style.color = color;
|
| + color = getComputedStyle(innerSpan).color;
|
| +
|
| + if (color == "rgb(0, 0, 0)") {
|
| + // Maybe it's really black, maybe it's invalid.
|
| + outerSpan.color = "white";
|
| + color = getComputedStyle(innerSpan).color;
|
| + if (color != "rgb(0, 0, 0)") {
|
| + return normalizeColor.resultCache[originalColor] = null;
|
| + }
|
| + }
|
| +
|
| + document.body.removeChild(outerSpan);
|
| +
|
| + // I rely on the fact that browsers generally provide consistent syntax for
|
| + // getComputedStyle(), although it's not standardized. There are only
|
| + // three exceptions I found:
|
| + if (/^rgba\([0-9]+, [0-9]+, [0-9]+, 1\)$/.test(color)) {
|
| + // IE10PP2 seems to do this sometimes.
|
| + return normalizeColor.resultCache[originalColor] =
|
| + color.replace("rgba", "rgb").replace(", 1)", ")");
|
| + }
|
| + if (color == "transparent") {
|
| + // IE10PP2, Firefox 7.0a2, and Opera 11.50 all return "transparent" if
|
| + // the specified value is "transparent".
|
| + return normalizeColor.resultCache[originalColor] =
|
| + "rgba(0, 0, 0, 0)";
|
| + }
|
| + // Chrome 15 dev adds way too many significant figures. This isn't a full
|
| + // fix, it just fixes one case that comes up in tests.
|
| + color = color.replace(/, 0.496094\)$/, ", 0.5)");
|
| + return normalizeColor.resultCache[originalColor] = color;
|
| +}
|
| +
|
| +// Returns either null, or something of the form #xxxxxx.
|
| +function parseSimpleColor(color) {
|
| + color = normalizeColor(color);
|
| + var matches = /^rgb\(([0-9]+), ([0-9]+), ([0-9]+)\)$/.exec(color);
|
| + if (matches) {
|
| + return "#"
|
| + + parseInt(matches[1]).toString(16).replace(/^.$/, "0$&")
|
| + + parseInt(matches[2]).toString(16).replace(/^.$/, "0$&")
|
| + + parseInt(matches[3]).toString(16).replace(/^.$/, "0$&");
|
| + }
|
| + return null;
|
| +}
|
| +
|
| +//@}
|
| +
|
| +//////////////////////////////////////////////////////////////////////////////
|
| +/////////////////////////// Edit command functions ///////////////////////////
|
| +//////////////////////////////////////////////////////////////////////////////
|
| +
|
| +/////////////////////////////////////////////////
|
| +///// Methods of the HTMLDocument interface /////
|
| +/////////////////////////////////////////////////
|
| +//@{
|
| +
|
| +var executionStackDepth = 0;
|
| +
|
| +// Helper function for common behavior.
|
| +function editCommandMethod(command, range, callback) {
|
| + // Set up our global range magic, but only if we're the outermost function
|
| + if (executionStackDepth == 0 && typeof range != "undefined") {
|
| + globalRange = range;
|
| + } else if (executionStackDepth == 0) {
|
| + globalRange = null;
|
| + globalRange = getActiveRange();
|
| + }
|
| +
|
| + executionStackDepth++;
|
| + try {
|
| + var ret = callback();
|
| + } catch(e) {
|
| + executionStackDepth--;
|
| + throw e;
|
| + }
|
| + executionStackDepth--;
|
| + return ret;
|
| +}
|
| +
|
| +function myExecCommand(command, showUi, value, range) {
|
| + // "All of these methods must treat their command argument ASCII
|
| + // case-insensitively."
|
| + command = command.toLowerCase();
|
| +
|
| + // "If only one argument was provided, let show UI be false."
|
| + //
|
| + // If range was passed, I can't actually detect how many args were passed
|
| + // . . .
|
| + if (arguments.length == 1
|
| + || (arguments.length >=4 && typeof showUi == "undefined")) {
|
| + showUi = false;
|
| + }
|
| +
|
| + // "If only one or two arguments were provided, let value be the empty
|
| + // string."
|
| + if (arguments.length <= 2
|
| + || (arguments.length >=4 && typeof value == "undefined")) {
|
| + value = "";
|
| + }
|
| +
|
| + return editCommandMethod(command, range, (function(command, showUi, value) { return function() {
|
| + // "If command is not supported or not enabled, return false."
|
| + if (!(command in commands) || !myQueryCommandEnabled(command)) {
|
| + return false;
|
| + }
|
| +
|
| + // "Take the action for command, passing value to the instructions as an
|
| + // argument."
|
| + var ret = commands[command].action(value);
|
| +
|
| + // Check for bugs
|
| + if (ret !== true && ret !== false) {
|
| + throw "execCommand() didn't return true or false: " + ret;
|
| + }
|
| +
|
| + // "If the previous step returned false, return false."
|
| + if (ret === false) {
|
| + return false;
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }})(command, showUi, value));
|
| +}
|
| +
|
| +function myQueryCommandEnabled(command, range) {
|
| + // "All of these methods must treat their command argument ASCII
|
| + // case-insensitively."
|
| + command = command.toLowerCase();
|
| +
|
| + return editCommandMethod(command, range, (function(command) { return function() {
|
| + // "Return true if command is both supported and enabled, false
|
| + // otherwise."
|
| + if (!(command in commands)) {
|
| + return false;
|
| + }
|
| +
|
| + // "Among commands defined in this specification, those listed in
|
| + // Miscellaneous commands are always enabled, except for the cut
|
| + // command and the paste command. The other commands defined here are
|
| + // enabled if the active range is not null, its start node is either
|
| + // editable or an editing host, its end node is either editable or an
|
| + // editing host, and there is some editing host that is an inclusive
|
| + // ancestor of both its start node and its end node."
|
| + return ["copy", "defaultparagraphseparator", "selectall", "stylewithcss",
|
| + "usecss"].indexOf(command) != -1
|
| + || (
|
| + getActiveRange() !== null
|
| + && (isEditable(getActiveRange().startContainer) || isEditingHost(getActiveRange().startContainer))
|
| + && (isEditable(getActiveRange().endContainer) || isEditingHost(getActiveRange().endContainer))
|
| + && (getInclusiveAncestors(getActiveRange().commonAncestorContainer).some(isEditingHost))
|
| + );
|
| + }})(command));
|
| +}
|
| +
|
| +function myQueryCommandIndeterm(command, range) {
|
| + // "All of these methods must treat their command argument ASCII
|
| + // case-insensitively."
|
| + command = command.toLowerCase();
|
| +
|
| + return editCommandMethod(command, range, (function(command) { return function() {
|
| + // "If command is not supported or has no indeterminacy, return false."
|
| + if (!(command in commands) || !("indeterm" in commands[command])) {
|
| + return false;
|
| + }
|
| +
|
| + // "Return true if command is indeterminate, otherwise false."
|
| + return commands[command].indeterm();
|
| + }})(command));
|
| +}
|
| +
|
| +function myQueryCommandState(command, range) {
|
| + // "All of these methods must treat their command argument ASCII
|
| + // case-insensitively."
|
| + command = command.toLowerCase();
|
| +
|
| + return editCommandMethod(command, range, (function(command) { return function() {
|
| + // "If command is not supported or has no state, return false."
|
| + if (!(command in commands) || !("state" in commands[command])) {
|
| + return false;
|
| + }
|
| +
|
| + // "If the state override for command is set, return it."
|
| + if (typeof getStateOverride(command) != "undefined") {
|
| + return getStateOverride(command);
|
| + }
|
| +
|
| + // "Return true if command's state is true, otherwise false."
|
| + return commands[command].state();
|
| + }})(command));
|
| +}
|
| +
|
| +// "When the queryCommandSupported(command) method on the HTMLDocument
|
| +// interface is invoked, the user agent must return true if command is
|
| +// supported, and false otherwise."
|
| +function myQueryCommandSupported(command) {
|
| + // "All of these methods must treat their command argument ASCII
|
| + // case-insensitively."
|
| + command = command.toLowerCase();
|
| +
|
| + return command in commands;
|
| +}
|
| +
|
| +function myQueryCommandValue(command, range) {
|
| + // "All of these methods must treat their command argument ASCII
|
| + // case-insensitively."
|
| + command = command.toLowerCase();
|
| +
|
| + return editCommandMethod(command, range, function() {
|
| + // "If command is not supported or has no value, return the empty string."
|
| + if (!(command in commands) || !("value" in commands[command])) {
|
| + return "";
|
| + }
|
| +
|
| + // "If command is "fontSize" and its value override is set, convert the
|
| + // value override to an integer number of pixels and return the legacy
|
| + // font size for the result."
|
| + if (command == "fontsize"
|
| + && getValueOverride("fontsize") !== undefined) {
|
| + return getLegacyFontSize(getValueOverride("fontsize"));
|
| + }
|
| +
|
| + // "If the value override for command is set, return it."
|
| + if (typeof getValueOverride(command) != "undefined") {
|
| + return getValueOverride(command);
|
| + }
|
| +
|
| + // "Return command's value."
|
| + return commands[command].value();
|
| + });
|
| +}
|
| +//@}
|
| +
|
| +//////////////////////////////
|
| +///// Common definitions /////
|
| +//////////////////////////////
|
| +//@{
|
| +
|
| +// "An HTML element is an Element whose namespace is the HTML namespace."
|
| +//
|
| +// I allow an extra argument to more easily check whether something is a
|
| +// particular HTML element, like isHtmlElement(node, "OL"). It accepts arrays
|
| +// too, like isHtmlElement(node, ["OL", "UL"]) to check if it's an ol or ul.
|
| +function isHtmlElement(node, tags) {
|
| + if (typeof tags == "string") {
|
| + tags = [tags];
|
| + }
|
| + if (typeof tags == "object") {
|
| + tags = tags.map(function(tag) { return tag.toUpperCase() });
|
| + }
|
| + return node
|
| + && node.nodeType == Node.ELEMENT_NODE
|
| + && isHtmlNamespace(node.namespaceURI)
|
| + && (typeof tags == "undefined" || tags.indexOf(node.tagName) != -1);
|
| +}
|
| +
|
| +// "A prohibited paragraph child name is "address", "article", "aside",
|
| +// "blockquote", "caption", "center", "col", "colgroup", "dd", "details",
|
| +// "dir", "div", "dl", "dt", "fieldset", "figcaption", "figure", "footer",
|
| +// "form", "h1", "h2", "h3", "h4", "h5", "h6", "header", "hgroup", "hr", "li",
|
| +// "listing", "menu", "nav", "ol", "p", "plaintext", "pre", "section",
|
| +// "summary", "table", "tbody", "td", "tfoot", "th", "thead", "tr", "ul", or
|
| +// "xmp"."
|
| +var prohibitedParagraphChildNames = ["address", "article", "aside",
|
| + "blockquote", "caption", "center", "col", "colgroup", "dd", "details",
|
| + "dir", "div", "dl", "dt", "fieldset", "figcaption", "figure", "footer",
|
| + "form", "h1", "h2", "h3", "h4", "h5", "h6", "header", "hgroup", "hr", "li",
|
| + "listing", "menu", "nav", "ol", "p", "plaintext", "pre", "section",
|
| + "summary", "table", "tbody", "td", "tfoot", "th", "thead", "tr", "ul",
|
| + "xmp"];
|
| +
|
| +// "A prohibited paragraph child is an HTML element whose local name is a
|
| +// prohibited paragraph child name."
|
| +function isProhibitedParagraphChild(node) {
|
| + return isHtmlElement(node, prohibitedParagraphChildNames);
|
| +}
|
| +
|
| +// "A block node is either an Element whose "display" property does not have
|
| +// resolved value "inline" or "inline-block" or "inline-table" or "none", or a
|
| +// Document, or a DocumentFragment."
|
| +function isBlockNode(node) {
|
| + return node
|
| + && ((node.nodeType == Node.ELEMENT_NODE && ["inline", "inline-block", "inline-table", "none"].indexOf(getComputedStyle(node).display) == -1)
|
| + || node.nodeType == Node.DOCUMENT_NODE
|
| + || node.nodeType == Node.DOCUMENT_FRAGMENT_NODE);
|
| +}
|
| +
|
| +// "An inline node is a node that is not a block node."
|
| +function isInlineNode(node) {
|
| + return node && !isBlockNode(node);
|
| +}
|
| +
|
| +// "An editing host is a node that is either an HTML element with a
|
| +// contenteditable attribute set to the true state, or the HTML element child
|
| +// of a Document whose designMode is enabled."
|
| +function isEditingHost(node) {
|
| + return node
|
| + && isHtmlElement(node)
|
| + && (node.contentEditable == "true"
|
| + || (node.parentNode
|
| + && node.parentNode.nodeType == Node.DOCUMENT_NODE
|
| + && node.parentNode.designMode == "on"));
|
| +}
|
| +
|
| +// "Something is editable if it is a node; it is not an editing host; it does
|
| +// not have a contenteditable attribute set to the false state; its parent is
|
| +// an editing host or editable; and either it is an HTML element, or it is an
|
| +// svg or math element, or it is not an Element and its parent is an HTML
|
| +// element."
|
| +function isEditable(node) {
|
| + return node
|
| + && !isEditingHost(node)
|
| + && (node.nodeType != Node.ELEMENT_NODE || node.contentEditable != "false")
|
| + && (isEditingHost(node.parentNode) || isEditable(node.parentNode))
|
| + && (isHtmlElement(node)
|
| + || (node.nodeType == Node.ELEMENT_NODE && node.namespaceURI == "http://www.w3.org/2000/svg" && node.localName == "svg")
|
| + || (node.nodeType == Node.ELEMENT_NODE && node.namespaceURI == "http://www.w3.org/1998/Math/MathML" && node.localName == "math")
|
| + || (node.nodeType != Node.ELEMENT_NODE && isHtmlElement(node.parentNode)));
|
| +}
|
| +
|
| +// Helper function, not defined in the spec
|
| +function hasEditableDescendants(node) {
|
| + for (var i = 0; i < node.childNodes.length; i++) {
|
| + if (isEditable(node.childNodes[i])
|
| + || hasEditableDescendants(node.childNodes[i])) {
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| +}
|
| +
|
| +// "The editing host of node is null if node is neither editable nor an editing
|
| +// host; node itself, if node is an editing host; or the nearest ancestor of
|
| +// node that is an editing host, if node is editable."
|
| +function getEditingHostOf(node) {
|
| + if (isEditingHost(node)) {
|
| + return node;
|
| + } else if (isEditable(node)) {
|
| + var ancestor = node.parentNode;
|
| + while (!isEditingHost(ancestor)) {
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| + return ancestor;
|
| + } else {
|
| + return null;
|
| + }
|
| +}
|
| +
|
| +// "Two nodes are in the same editing host if the editing host of the first is
|
| +// non-null and the same as the editing host of the second."
|
| +function inSameEditingHost(node1, node2) {
|
| + return getEditingHostOf(node1)
|
| + && getEditingHostOf(node1) == getEditingHostOf(node2);
|
| +}
|
| +
|
| +// "A collapsed line break is a br that begins a line box which has nothing
|
| +// else in it, and therefore has zero height."
|
| +function isCollapsedLineBreak(br) {
|
| + if (!isHtmlElement(br, "br")) {
|
| + return false;
|
| + }
|
| +
|
| + // Add a zwsp after it and see if that changes the height of the nearest
|
| + // non-inline parent. Note: this is not actually reliable, because the
|
| + // parent might have a fixed height or something.
|
| + var ref = br.parentNode;
|
| + while (getComputedStyle(ref).display == "inline") {
|
| + ref = ref.parentNode;
|
| + }
|
| + var refStyle = ref.hasAttribute("style") ? ref.getAttribute("style") : null;
|
| + ref.style.height = "auto";
|
| + ref.style.maxHeight = "none";
|
| + ref.style.minHeight = "0";
|
| + var space = document.createTextNode("\u200b");
|
| + var origHeight = ref.offsetHeight;
|
| + if (origHeight == 0) {
|
| + throw "isCollapsedLineBreak: original height is zero, bug?";
|
| + }
|
| + br.parentNode.insertBefore(space, br.nextSibling);
|
| + var finalHeight = ref.offsetHeight;
|
| + space.parentNode.removeChild(space);
|
| + if (refStyle === null) {
|
| + // Without the setAttribute() line, removeAttribute() doesn't work in
|
| + // Chrome 14 dev. I have no idea why.
|
| + ref.setAttribute("style", "");
|
| + ref.removeAttribute("style");
|
| + } else {
|
| + ref.setAttribute("style", refStyle);
|
| + }
|
| +
|
| + // Allow some leeway in case the zwsp didn't create a whole new line, but
|
| + // only made an existing line slightly higher. Firefox 6.0a2 shows this
|
| + // behavior when the first line is bold.
|
| + return origHeight < finalHeight - 5;
|
| +}
|
| +
|
| +// "An extraneous line break is a br that has no visual effect, in that
|
| +// removing it from the DOM would not change layout, except that a br that is
|
| +// the sole child of an li is not extraneous."
|
| +//
|
| +// FIXME: This doesn't work in IE, since IE ignores display: none in
|
| +// contenteditable.
|
| +function isExtraneousLineBreak(br) {
|
| + if (!isHtmlElement(br, "br")) {
|
| + return false;
|
| + }
|
| +
|
| + if (isHtmlElement(br.parentNode, "li")
|
| + && br.parentNode.childNodes.length == 1) {
|
| + return false;
|
| + }
|
| +
|
| + // Make the line break disappear and see if that changes the block's
|
| + // height. Yes, this is an absurd hack. We have to reset height etc. on
|
| + // the reference node because otherwise its height won't change if it's not
|
| + // auto.
|
| + var ref = br.parentNode;
|
| + while (getComputedStyle(ref).display == "inline") {
|
| + ref = ref.parentNode;
|
| + }
|
| + var refStyle = ref.hasAttribute("style") ? ref.getAttribute("style") : null;
|
| + ref.style.height = "auto";
|
| + ref.style.maxHeight = "none";
|
| + ref.style.minHeight = "0";
|
| + var brStyle = br.hasAttribute("style") ? br.getAttribute("style") : null;
|
| + var origHeight = ref.offsetHeight;
|
| + if (origHeight == 0) {
|
| + throw "isExtraneousLineBreak: original height is zero, bug?";
|
| + }
|
| + br.setAttribute("style", "display:none");
|
| + var finalHeight = ref.offsetHeight;
|
| + if (refStyle === null) {
|
| + // Without the setAttribute() line, removeAttribute() doesn't work in
|
| + // Chrome 14 dev. I have no idea why.
|
| + ref.setAttribute("style", "");
|
| + ref.removeAttribute("style");
|
| + } else {
|
| + ref.setAttribute("style", refStyle);
|
| + }
|
| + if (brStyle === null) {
|
| + br.removeAttribute("style");
|
| + } else {
|
| + br.setAttribute("style", brStyle);
|
| + }
|
| +
|
| + return origHeight == finalHeight;
|
| +}
|
| +
|
| +// "A whitespace node is either a Text node whose data is the empty string; or
|
| +// a Text node whose data consists only of one or more tabs (0x0009), line
|
| +// feeds (0x000A), carriage returns (0x000D), and/or spaces (0x0020), and whose
|
| +// parent is an Element whose resolved value for "white-space" is "normal" or
|
| +// "nowrap"; or a Text node whose data consists only of one or more tabs
|
| +// (0x0009), carriage returns (0x000D), and/or spaces (0x0020), and whose
|
| +// parent is an Element whose resolved value for "white-space" is "pre-line"."
|
| +function isWhitespaceNode(node) {
|
| + return node
|
| + && node.nodeType == Node.TEXT_NODE
|
| + && (node.data == ""
|
| + || (
|
| + /^[\t\n\r ]+$/.test(node.data)
|
| + && node.parentNode
|
| + && node.parentNode.nodeType == Node.ELEMENT_NODE
|
| + && ["normal", "nowrap"].indexOf(getComputedStyle(node.parentNode).whiteSpace) != -1
|
| + ) || (
|
| + /^[\t\r ]+$/.test(node.data)
|
| + && node.parentNode
|
| + && node.parentNode.nodeType == Node.ELEMENT_NODE
|
| + && getComputedStyle(node.parentNode).whiteSpace == "pre-line"
|
| + ));
|
| +}
|
| +
|
| +// "node is a collapsed whitespace node if the following algorithm returns
|
| +// true:"
|
| +function isCollapsedWhitespaceNode(node) {
|
| + // "If node is not a whitespace node, return false."
|
| + if (!isWhitespaceNode(node)) {
|
| + return false;
|
| + }
|
| +
|
| + // "If node's data is the empty string, return true."
|
| + if (node.data == "") {
|
| + return true;
|
| + }
|
| +
|
| + // "Let ancestor be node's parent."
|
| + var ancestor = node.parentNode;
|
| +
|
| + // "If ancestor is null, return true."
|
| + if (!ancestor) {
|
| + return true;
|
| + }
|
| +
|
| + // "If the "display" property of some ancestor of node has resolved value
|
| + // "none", return true."
|
| + if (getAncestors(node).some(function(ancestor) {
|
| + return ancestor.nodeType == Node.ELEMENT_NODE
|
| + && getComputedStyle(ancestor).display == "none";
|
| + })) {
|
| + return true;
|
| + }
|
| +
|
| + // "While ancestor is not a block node and its parent is not null, set
|
| + // ancestor to its parent."
|
| + while (!isBlockNode(ancestor)
|
| + && ancestor.parentNode) {
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| +
|
| + // "Let reference be node."
|
| + var reference = node;
|
| +
|
| + // "While reference is a descendant of ancestor:"
|
| + while (reference != ancestor) {
|
| + // "Let reference be the node before it in tree order."
|
| + reference = previousNode(reference);
|
| +
|
| + // "If reference is a block node or a br, return true."
|
| + if (isBlockNode(reference)
|
| + || isHtmlElement(reference, "br")) {
|
| + return true;
|
| + }
|
| +
|
| + // "If reference is a Text node that is not a whitespace node, or is an
|
| + // img, break from this loop."
|
| + if ((reference.nodeType == Node.TEXT_NODE && !isWhitespaceNode(reference))
|
| + || isHtmlElement(reference, "img")) {
|
| + break;
|
| + }
|
| + }
|
| +
|
| + // "Let reference be node."
|
| + reference = node;
|
| +
|
| + // "While reference is a descendant of ancestor:"
|
| + var stop = nextNodeDescendants(ancestor);
|
| + while (reference != stop) {
|
| + // "Let reference be the node after it in tree order, or null if there
|
| + // is no such node."
|
| + reference = nextNode(reference);
|
| +
|
| + // "If reference is a block node or a br, return true."
|
| + if (isBlockNode(reference)
|
| + || isHtmlElement(reference, "br")) {
|
| + return true;
|
| + }
|
| +
|
| + // "If reference is a Text node that is not a whitespace node, or is an
|
| + // img, break from this loop."
|
| + if ((reference && reference.nodeType == Node.TEXT_NODE && !isWhitespaceNode(reference))
|
| + || isHtmlElement(reference, "img")) {
|
| + break;
|
| + }
|
| + }
|
| +
|
| + // "Return false."
|
| + return false;
|
| +}
|
| +
|
| +// "Something is visible if it is a node that either is a block node, or a Text
|
| +// node that is not a collapsed whitespace node, or an img, or a br that is not
|
| +// an extraneous line break, or any node with a visible descendant; excluding
|
| +// any node with an ancestor container Element whose "display" property has
|
| +// resolved value "none"."
|
| +function isVisible(node) {
|
| + if (!node) {
|
| + return false;
|
| + }
|
| +
|
| + if (getAncestors(node).concat(node)
|
| + .filter(function(node) { return node.nodeType == Node.ELEMENT_NODE })
|
| + .some(function(node) { return getComputedStyle(node).display == "none" })) {
|
| + return false;
|
| + }
|
| +
|
| + if (isBlockNode(node)
|
| + || (node.nodeType == Node.TEXT_NODE && !isCollapsedWhitespaceNode(node))
|
| + || isHtmlElement(node, "img")
|
| + || (isHtmlElement(node, "br") && !isExtraneousLineBreak(node))) {
|
| + return true;
|
| + }
|
| +
|
| + for (var i = 0; i < node.childNodes.length; i++) {
|
| + if (isVisible(node.childNodes[i])) {
|
| + return true;
|
| + }
|
| + }
|
| +
|
| + return false;
|
| +}
|
| +
|
| +// "Something is invisible if it is a node that is not visible."
|
| +function isInvisible(node) {
|
| + return node && !isVisible(node);
|
| +}
|
| +
|
| +// "A collapsed block prop is either a collapsed line break that is not an
|
| +// extraneous line break, or an Element that is an inline node and whose
|
| +// children are all either invisible or collapsed block props and that has at
|
| +// least one child that is a collapsed block prop."
|
| +function isCollapsedBlockProp(node) {
|
| + if (isCollapsedLineBreak(node)
|
| + && !isExtraneousLineBreak(node)) {
|
| + return true;
|
| + }
|
| +
|
| + if (!isInlineNode(node)
|
| + || node.nodeType != Node.ELEMENT_NODE) {
|
| + return false;
|
| + }
|
| +
|
| + var hasCollapsedBlockPropChild = false;
|
| + for (var i = 0; i < node.childNodes.length; i++) {
|
| + if (!isInvisible(node.childNodes[i])
|
| + && !isCollapsedBlockProp(node.childNodes[i])) {
|
| + return false;
|
| + }
|
| + if (isCollapsedBlockProp(node.childNodes[i])) {
|
| + hasCollapsedBlockPropChild = true;
|
| + }
|
| + }
|
| +
|
| + return hasCollapsedBlockPropChild;
|
| +}
|
| +
|
| +// "The active range is the range of the selection given by calling
|
| +// getSelection() on the context object. (Thus the active range may be null.)"
|
| +//
|
| +// We cheat and return globalRange if that's defined. We also ensure that the
|
| +// active range meets the requirements that selection boundary points are
|
| +// supposed to meet, i.e., that the nodes are both Text or Element nodes that
|
| +// descend from a Document.
|
| +function getActiveRange() {
|
| + var ret;
|
| + if (globalRange) {
|
| + ret = globalRange;
|
| + } else if (getSelection().rangeCount) {
|
| + ret = getSelection().getRangeAt(0);
|
| + } else {
|
| + return null;
|
| + }
|
| + if ([Node.TEXT_NODE, Node.ELEMENT_NODE].indexOf(ret.startContainer.nodeType) == -1
|
| + || [Node.TEXT_NODE, Node.ELEMENT_NODE].indexOf(ret.endContainer.nodeType) == -1
|
| + || !ret.startContainer.ownerDocument
|
| + || !ret.endContainer.ownerDocument
|
| + || !isDescendant(ret.startContainer, ret.startContainer.ownerDocument)
|
| + || !isDescendant(ret.endContainer, ret.endContainer.ownerDocument)) {
|
| + throw "Invalid active range; test bug?";
|
| + }
|
| + return ret;
|
| +}
|
| +
|
| +// "For some commands, each HTMLDocument must have a boolean state override
|
| +// and/or a string value override. These do not change the command's state or
|
| +// value, but change the way some algorithms behave, as specified in those
|
| +// algorithms' definitions. Initially, both must be unset for every command.
|
| +// Whenever the number of ranges in the Selection changes to something
|
| +// different, and whenever a boundary point of the range at a given index in
|
| +// the Selection changes to something different, the state override and value
|
| +// override must be unset for every command."
|
| +//
|
| +// We implement this crudely by using setters and getters. To verify that the
|
| +// selection hasn't changed, we copy the active range and just check the
|
| +// endpoints match. This isn't really correct, but it's good enough for us.
|
| +// Unset state/value overrides are undefined. We put everything in a function
|
| +// so no one can access anything except via the provided functions, since
|
| +// otherwise callers might mistakenly use outdated overrides (if the selection
|
| +// has changed).
|
| +var getStateOverride, setStateOverride, unsetStateOverride,
|
| + getValueOverride, setValueOverride, unsetValueOverride;
|
| +(function() {
|
| + var stateOverrides = {};
|
| + var valueOverrides = {};
|
| + var storedRange = null;
|
| +
|
| + function resetOverrides() {
|
| + if (!storedRange
|
| + || storedRange.startContainer != getActiveRange().startContainer
|
| + || storedRange.endContainer != getActiveRange().endContainer
|
| + || storedRange.startOffset != getActiveRange().startOffset
|
| + || storedRange.endOffset != getActiveRange().endOffset) {
|
| + stateOverrides = {};
|
| + valueOverrides = {};
|
| + storedRange = getActiveRange().cloneRange();
|
| + }
|
| + }
|
| +
|
| + getStateOverride = function(command) {
|
| + resetOverrides();
|
| + return stateOverrides[command];
|
| + };
|
| +
|
| + setStateOverride = function(command, newState) {
|
| + resetOverrides();
|
| + stateOverrides[command] = newState;
|
| + };
|
| +
|
| + unsetStateOverride = function(command) {
|
| + resetOverrides();
|
| + delete stateOverrides[command];
|
| + }
|
| +
|
| + getValueOverride = function(command) {
|
| + resetOverrides();
|
| + return valueOverrides[command];
|
| + }
|
| +
|
| + // "The value override for the backColor command must be the same as the
|
| + // value override for the hiliteColor command, such that setting one sets
|
| + // the other to the same thing and unsetting one unsets the other."
|
| + setValueOverride = function(command, newValue) {
|
| + resetOverrides();
|
| + valueOverrides[command] = newValue;
|
| + if (command == "backcolor") {
|
| + valueOverrides.hilitecolor = newValue;
|
| + } else if (command == "hilitecolor") {
|
| + valueOverrides.backcolor = newValue;
|
| + }
|
| + }
|
| +
|
| + unsetValueOverride = function(command) {
|
| + resetOverrides();
|
| + delete valueOverrides[command];
|
| + if (command == "backcolor") {
|
| + delete valueOverrides.hilitecolor;
|
| + } else if (command == "hilitecolor") {
|
| + delete valueOverrides.backcolor;
|
| + }
|
| + }
|
| +})();
|
| +
|
| +//@}
|
| +
|
| +/////////////////////////////
|
| +///// Common algorithms /////
|
| +/////////////////////////////
|
| +
|
| +///// Assorted common algorithms /////
|
| +//@{
|
| +
|
| +// Magic array of extra ranges whose endpoints we want to preserve.
|
| +var extraRanges = [];
|
| +
|
| +function movePreservingRanges(node, newParent, newIndex) {
|
| + // For convenience, I allow newIndex to be -1 to mean "insert at the end".
|
| + if (newIndex == -1) {
|
| + newIndex = newParent.childNodes.length;
|
| + }
|
| +
|
| + // "When the user agent is to move a Node to a new location, preserving
|
| + // ranges, it must remove the Node from its original parent (if any), then
|
| + // insert it in the new location. In doing so, however, it must ignore the
|
| + // regular range mutation rules, and instead follow these rules:"
|
| +
|
| + // "Let node be the moved Node, old parent and old index be the old parent
|
| + // (which may be null) and index, and new parent and new index be the new
|
| + // parent and index."
|
| + var oldParent = node.parentNode;
|
| + var oldIndex = getNodeIndex(node);
|
| +
|
| + // We preserve the global range object, the ranges in the selection, and
|
| + // any range that's in the extraRanges array. Any other ranges won't get
|
| + // updated, because we have no references to them.
|
| + var ranges = [globalRange].concat(extraRanges);
|
| + for (var i = 0; i < getSelection().rangeCount; i++) {
|
| + ranges.push(getSelection().getRangeAt(i));
|
| + }
|
| + var boundaryPoints = [];
|
| + ranges.forEach(function(range) {
|
| + boundaryPoints.push([range.startContainer, range.startOffset]);
|
| + boundaryPoints.push([range.endContainer, range.endOffset]);
|
| + });
|
| +
|
| + boundaryPoints.forEach(function(boundaryPoint) {
|
| + // "If a boundary point's node is the same as or a descendant of node,
|
| + // leave it unchanged, so it moves to the new location."
|
| + //
|
| + // No modifications necessary.
|
| +
|
| + // "If a boundary point's node is new parent and its offset is greater
|
| + // than new index, add one to its offset."
|
| + if (boundaryPoint[0] == newParent
|
| + && boundaryPoint[1] > newIndex) {
|
| + boundaryPoint[1]++;
|
| + }
|
| +
|
| + // "If a boundary point's node is old parent and its offset is old index or
|
| + // old index + 1, set its node to new parent and add new index − old index
|
| + // to its offset."
|
| + if (boundaryPoint[0] == oldParent
|
| + && (boundaryPoint[1] == oldIndex
|
| + || boundaryPoint[1] == oldIndex + 1)) {
|
| + boundaryPoint[0] = newParent;
|
| + boundaryPoint[1] += newIndex - oldIndex;
|
| + }
|
| +
|
| + // "If a boundary point's node is old parent and its offset is greater than
|
| + // old index + 1, subtract one from its offset."
|
| + if (boundaryPoint[0] == oldParent
|
| + && boundaryPoint[1] > oldIndex + 1) {
|
| + boundaryPoint[1]--;
|
| + }
|
| + });
|
| +
|
| + // Now actually move it and preserve the ranges.
|
| + if (newParent.childNodes.length == newIndex) {
|
| + newParent.appendChild(node);
|
| + } else {
|
| + newParent.insertBefore(node, newParent.childNodes[newIndex]);
|
| + }
|
| +
|
| + globalRange.setStart(boundaryPoints[0][0], boundaryPoints[0][1]);
|
| + globalRange.setEnd(boundaryPoints[1][0], boundaryPoints[1][1]);
|
| +
|
| + for (var i = 0; i < extraRanges.length; i++) {
|
| + extraRanges[i].setStart(boundaryPoints[2*i + 2][0], boundaryPoints[2*i + 2][1]);
|
| + extraRanges[i].setEnd(boundaryPoints[2*i + 3][0], boundaryPoints[2*i + 3][1]);
|
| + }
|
| +
|
| + getSelection().removeAllRanges();
|
| + for (var i = 1 + extraRanges.length; i < ranges.length; i++) {
|
| + var newRange = document.createRange();
|
| + newRange.setStart(boundaryPoints[2*i][0], boundaryPoints[2*i][1]);
|
| + newRange.setEnd(boundaryPoints[2*i + 1][0], boundaryPoints[2*i + 1][1]);
|
| + getSelection().addRange(newRange);
|
| + }
|
| +}
|
| +
|
| +function setTagName(element, newName) {
|
| + // "If element is an HTML element with local name equal to new name, return
|
| + // element."
|
| + if (isHtmlElement(element, newName.toUpperCase())) {
|
| + return element;
|
| + }
|
| +
|
| + // "If element's parent is null, return element."
|
| + if (!element.parentNode) {
|
| + return element;
|
| + }
|
| +
|
| + // "Let replacement element be the result of calling createElement(new
|
| + // name) on the ownerDocument of element."
|
| + var replacementElement = element.ownerDocument.createElement(newName);
|
| +
|
| + // "Insert replacement element into element's parent immediately before
|
| + // element."
|
| + element.parentNode.insertBefore(replacementElement, element);
|
| +
|
| + // "Copy all attributes of element to replacement element, in order."
|
| + for (var i = 0; i < element.attributes.length; i++) {
|
| + replacementElement.setAttributeNS(element.attributes[i].namespaceURI, element.attributes[i].name, element.attributes[i].value);
|
| + }
|
| +
|
| + // "While element has children, append the first child of element as the
|
| + // last child of replacement element, preserving ranges."
|
| + while (element.childNodes.length) {
|
| + movePreservingRanges(element.firstChild, replacementElement, replacementElement.childNodes.length);
|
| + }
|
| +
|
| + // "Remove element from its parent."
|
| + element.parentNode.removeChild(element);
|
| +
|
| + // "Return replacement element."
|
| + return replacementElement;
|
| +}
|
| +
|
| +function removeExtraneousLineBreaksBefore(node) {
|
| + // "Let ref be the previousSibling of node."
|
| + var ref = node.previousSibling;
|
| +
|
| + // "If ref is null, abort these steps."
|
| + if (!ref) {
|
| + return;
|
| + }
|
| +
|
| + // "While ref has children, set ref to its lastChild."
|
| + while (ref.hasChildNodes()) {
|
| + ref = ref.lastChild;
|
| + }
|
| +
|
| + // "While ref is invisible but not an extraneous line break, and ref does
|
| + // not equal node's parent, set ref to the node before it in tree order."
|
| + while (isInvisible(ref)
|
| + && !isExtraneousLineBreak(ref)
|
| + && ref != node.parentNode) {
|
| + ref = previousNode(ref);
|
| + }
|
| +
|
| + // "If ref is an editable extraneous line break, remove it from its
|
| + // parent."
|
| + if (isEditable(ref)
|
| + && isExtraneousLineBreak(ref)) {
|
| + ref.parentNode.removeChild(ref);
|
| + }
|
| +}
|
| +
|
| +function removeExtraneousLineBreaksAtTheEndOf(node) {
|
| + // "Let ref be node."
|
| + var ref = node;
|
| +
|
| + // "While ref has children, set ref to its lastChild."
|
| + while (ref.hasChildNodes()) {
|
| + ref = ref.lastChild;
|
| + }
|
| +
|
| + // "While ref is invisible but not an extraneous line break, and ref does
|
| + // not equal node, set ref to the node before it in tree order."
|
| + while (isInvisible(ref)
|
| + && !isExtraneousLineBreak(ref)
|
| + && ref != node) {
|
| + ref = previousNode(ref);
|
| + }
|
| +
|
| + // "If ref is an editable extraneous line break:"
|
| + if (isEditable(ref)
|
| + && isExtraneousLineBreak(ref)) {
|
| + // "While ref's parent is editable and invisible, set ref to its
|
| + // parent."
|
| + while (isEditable(ref.parentNode)
|
| + && isInvisible(ref.parentNode)) {
|
| + ref = ref.parentNode;
|
| + }
|
| +
|
| + // "Remove ref from its parent."
|
| + ref.parentNode.removeChild(ref);
|
| + }
|
| +}
|
| +
|
| +// "To remove extraneous line breaks from a node, first remove extraneous line
|
| +// breaks before it, then remove extraneous line breaks at the end of it."
|
| +function removeExtraneousLineBreaksFrom(node) {
|
| + removeExtraneousLineBreaksBefore(node);
|
| + removeExtraneousLineBreaksAtTheEndOf(node);
|
| +}
|
| +
|
| +//@}
|
| +///// Wrapping a list of nodes /////
|
| +//@{
|
| +
|
| +function wrap(nodeList, siblingCriteria, newParentInstructions) {
|
| + // "If not provided, sibling criteria returns false and new parent
|
| + // instructions returns null."
|
| + if (typeof siblingCriteria == "undefined") {
|
| + siblingCriteria = function() { return false };
|
| + }
|
| + if (typeof newParentInstructions == "undefined") {
|
| + newParentInstructions = function() { return null };
|
| + }
|
| +
|
| + // "If every member of node list is invisible, and none is a br, return
|
| + // null and abort these steps."
|
| + if (nodeList.every(isInvisible)
|
| + && !nodeList.some(function(node) { return isHtmlElement(node, "br") })) {
|
| + return null;
|
| + }
|
| +
|
| + // "If node list's first member's parent is null, return null and abort
|
| + // these steps."
|
| + if (!nodeList[0].parentNode) {
|
| + return null;
|
| + }
|
| +
|
| + // "If node list's last member is an inline node that's not a br, and node
|
| + // list's last member's nextSibling is a br, append that br to node list."
|
| + if (isInlineNode(nodeList[nodeList.length - 1])
|
| + && !isHtmlElement(nodeList[nodeList.length - 1], "br")
|
| + && isHtmlElement(nodeList[nodeList.length - 1].nextSibling, "br")) {
|
| + nodeList.push(nodeList[nodeList.length - 1].nextSibling);
|
| + }
|
| +
|
| + // "While node list's first member's previousSibling is invisible, prepend
|
| + // it to node list."
|
| + while (isInvisible(nodeList[0].previousSibling)) {
|
| + nodeList.unshift(nodeList[0].previousSibling);
|
| + }
|
| +
|
| + // "While node list's last member's nextSibling is invisible, append it to
|
| + // node list."
|
| + while (isInvisible(nodeList[nodeList.length - 1].nextSibling)) {
|
| + nodeList.push(nodeList[nodeList.length - 1].nextSibling);
|
| + }
|
| +
|
| + // "If the previousSibling of the first member of node list is editable and
|
| + // running sibling criteria on it returns true, let new parent be the
|
| + // previousSibling of the first member of node list."
|
| + var newParent;
|
| + if (isEditable(nodeList[0].previousSibling)
|
| + && siblingCriteria(nodeList[0].previousSibling)) {
|
| + newParent = nodeList[0].previousSibling;
|
| +
|
| + // "Otherwise, if the nextSibling of the last member of node list is
|
| + // editable and running sibling criteria on it returns true, let new parent
|
| + // be the nextSibling of the last member of node list."
|
| + } else if (isEditable(nodeList[nodeList.length - 1].nextSibling)
|
| + && siblingCriteria(nodeList[nodeList.length - 1].nextSibling)) {
|
| + newParent = nodeList[nodeList.length - 1].nextSibling;
|
| +
|
| + // "Otherwise, run new parent instructions, and let new parent be the
|
| + // result."
|
| + } else {
|
| + newParent = newParentInstructions();
|
| + }
|
| +
|
| + // "If new parent is null, abort these steps and return null."
|
| + if (!newParent) {
|
| + return null;
|
| + }
|
| +
|
| + // "If new parent's parent is null:"
|
| + if (!newParent.parentNode) {
|
| + // "Insert new parent into the parent of the first member of node list
|
| + // immediately before the first member of node list."
|
| + nodeList[0].parentNode.insertBefore(newParent, nodeList[0]);
|
| +
|
| + // "If any range has a boundary point with node equal to the parent of
|
| + // new parent and offset equal to the index of new parent, add one to
|
| + // that boundary point's offset."
|
| + //
|
| + // Only try to fix the global range.
|
| + if (globalRange.startContainer == newParent.parentNode
|
| + && globalRange.startOffset == getNodeIndex(newParent)) {
|
| + globalRange.setStart(globalRange.startContainer, globalRange.startOffset + 1);
|
| + }
|
| + if (globalRange.endContainer == newParent.parentNode
|
| + && globalRange.endOffset == getNodeIndex(newParent)) {
|
| + globalRange.setEnd(globalRange.endContainer, globalRange.endOffset + 1);
|
| + }
|
| + }
|
| +
|
| + // "Let original parent be the parent of the first member of node list."
|
| + var originalParent = nodeList[0].parentNode;
|
| +
|
| + // "If new parent is before the first member of node list in tree order:"
|
| + if (isBefore(newParent, nodeList[0])) {
|
| + // "If new parent is not an inline node, but the last visible child of
|
| + // new parent and the first visible member of node list are both inline
|
| + // nodes, and the last child of new parent is not a br, call
|
| + // createElement("br") on the ownerDocument of new parent and append
|
| + // the result as the last child of new parent."
|
| + if (!isInlineNode(newParent)
|
| + && isInlineNode([].filter.call(newParent.childNodes, isVisible).slice(-1)[0])
|
| + && isInlineNode(nodeList.filter(isVisible)[0])
|
| + && !isHtmlElement(newParent.lastChild, "BR")) {
|
| + newParent.appendChild(newParent.ownerDocument.createElement("br"));
|
| + }
|
| +
|
| + // "For each node in node list, append node as the last child of new
|
| + // parent, preserving ranges."
|
| + for (var i = 0; i < nodeList.length; i++) {
|
| + movePreservingRanges(nodeList[i], newParent, -1);
|
| + }
|
| +
|
| + // "Otherwise:"
|
| + } else {
|
| + // "If new parent is not an inline node, but the first visible child of
|
| + // new parent and the last visible member of node list are both inline
|
| + // nodes, and the last member of node list is not a br, call
|
| + // createElement("br") on the ownerDocument of new parent and insert
|
| + // the result as the first child of new parent."
|
| + if (!isInlineNode(newParent)
|
| + && isInlineNode([].filter.call(newParent.childNodes, isVisible)[0])
|
| + && isInlineNode(nodeList.filter(isVisible).slice(-1)[0])
|
| + && !isHtmlElement(nodeList[nodeList.length - 1], "BR")) {
|
| + newParent.insertBefore(newParent.ownerDocument.createElement("br"), newParent.firstChild);
|
| + }
|
| +
|
| + // "For each node in node list, in reverse order, insert node as the
|
| + // first child of new parent, preserving ranges."
|
| + for (var i = nodeList.length - 1; i >= 0; i--) {
|
| + movePreservingRanges(nodeList[i], newParent, 0);
|
| + }
|
| + }
|
| +
|
| + // "If original parent is editable and has no children, remove it from its
|
| + // parent."
|
| + if (isEditable(originalParent) && !originalParent.hasChildNodes()) {
|
| + originalParent.parentNode.removeChild(originalParent);
|
| + }
|
| +
|
| + // "If new parent's nextSibling is editable and running sibling criteria on
|
| + // it returns true:"
|
| + if (isEditable(newParent.nextSibling)
|
| + && siblingCriteria(newParent.nextSibling)) {
|
| + // "If new parent is not an inline node, but new parent's last child
|
| + // and new parent's nextSibling's first child are both inline nodes,
|
| + // and new parent's last child is not a br, call createElement("br") on
|
| + // the ownerDocument of new parent and append the result as the last
|
| + // child of new parent."
|
| + if (!isInlineNode(newParent)
|
| + && isInlineNode(newParent.lastChild)
|
| + && isInlineNode(newParent.nextSibling.firstChild)
|
| + && !isHtmlElement(newParent.lastChild, "BR")) {
|
| + newParent.appendChild(newParent.ownerDocument.createElement("br"));
|
| + }
|
| +
|
| + // "While new parent's nextSibling has children, append its first child
|
| + // as the last child of new parent, preserving ranges."
|
| + while (newParent.nextSibling.hasChildNodes()) {
|
| + movePreservingRanges(newParent.nextSibling.firstChild, newParent, -1);
|
| + }
|
| +
|
| + // "Remove new parent's nextSibling from its parent."
|
| + newParent.parentNode.removeChild(newParent.nextSibling);
|
| + }
|
| +
|
| + // "Remove extraneous line breaks from new parent."
|
| + removeExtraneousLineBreaksFrom(newParent);
|
| +
|
| + // "Return new parent."
|
| + return newParent;
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Allowed children /////
|
| +//@{
|
| +
|
| +// "A name of an element with inline contents is "a", "abbr", "b", "bdi",
|
| +// "bdo", "cite", "code", "dfn", "em", "h1", "h2", "h3", "h4", "h5", "h6", "i",
|
| +// "kbd", "mark", "p", "pre", "q", "rp", "rt", "ruby", "s", "samp", "small",
|
| +// "span", "strong", "sub", "sup", "u", "var", "acronym", "listing", "strike",
|
| +// "xmp", "big", "blink", "font", "marquee", "nobr", or "tt"."
|
| +var namesOfElementsWithInlineContents = ["a", "abbr", "b", "bdi", "bdo",
|
| + "cite", "code", "dfn", "em", "h1", "h2", "h3", "h4", "h5", "h6", "i",
|
| + "kbd", "mark", "p", "pre", "q", "rp", "rt", "ruby", "s", "samp", "small",
|
| + "span", "strong", "sub", "sup", "u", "var", "acronym", "listing", "strike",
|
| + "xmp", "big", "blink", "font", "marquee", "nobr", "tt"];
|
| +
|
| +// "An element with inline contents is an HTML element whose local name is a
|
| +// name of an element with inline contents."
|
| +function isElementWithInlineContents(node) {
|
| + return isHtmlElement(node, namesOfElementsWithInlineContents);
|
| +}
|
| +
|
| +function isAllowedChild(child, parent_) {
|
| + // "If parent is "colgroup", "table", "tbody", "tfoot", "thead", "tr", or
|
| + // an HTML element with local name equal to one of those, and child is a
|
| + // Text node whose data does not consist solely of space characters, return
|
| + // false."
|
| + if ((["colgroup", "table", "tbody", "tfoot", "thead", "tr"].indexOf(parent_) != -1
|
| + || isHtmlElement(parent_, ["colgroup", "table", "tbody", "tfoot", "thead", "tr"]))
|
| + && typeof child == "object"
|
| + && child.nodeType == Node.TEXT_NODE
|
| + && !/^[ \t\n\f\r]*$/.test(child.data)) {
|
| + return false;
|
| + }
|
| +
|
| + // "If parent is "script", "style", "plaintext", or "xmp", or an HTML
|
| + // element with local name equal to one of those, and child is not a Text
|
| + // node, return false."
|
| + if ((["script", "style", "plaintext", "xmp"].indexOf(parent_) != -1
|
| + || isHtmlElement(parent_, ["script", "style", "plaintext", "xmp"]))
|
| + && (typeof child != "object" || child.nodeType != Node.TEXT_NODE)) {
|
| + return false;
|
| + }
|
| +
|
| + // "If child is a Document, DocumentFragment, or DocumentType, return
|
| + // false."
|
| + if (typeof child == "object"
|
| + && (child.nodeType == Node.DOCUMENT_NODE
|
| + || child.nodeType == Node.DOCUMENT_FRAGMENT_NODE
|
| + || child.nodeType == Node.DOCUMENT_TYPE_NODE)) {
|
| + return false;
|
| + }
|
| +
|
| + // "If child is an HTML element, set child to the local name of child."
|
| + if (isHtmlElement(child)) {
|
| + child = child.tagName.toLowerCase();
|
| + }
|
| +
|
| + // "If child is not a string, return true."
|
| + if (typeof child != "string") {
|
| + return true;
|
| + }
|
| +
|
| + // "If parent is an HTML element:"
|
| + if (isHtmlElement(parent_)) {
|
| + // "If child is "a", and parent or some ancestor of parent is an a,
|
| + // return false."
|
| + //
|
| + // "If child is a prohibited paragraph child name and parent or some
|
| + // ancestor of parent is an element with inline contents, return
|
| + // false."
|
| + //
|
| + // "If child is "h1", "h2", "h3", "h4", "h5", or "h6", and parent or
|
| + // some ancestor of parent is an HTML element with local name "h1",
|
| + // "h2", "h3", "h4", "h5", or "h6", return false."
|
| + var ancestor = parent_;
|
| + while (ancestor) {
|
| + if (child == "a" && isHtmlElement(ancestor, "a")) {
|
| + return false;
|
| + }
|
| + if (prohibitedParagraphChildNames.indexOf(child) != -1
|
| + && isElementWithInlineContents(ancestor)) {
|
| + return false;
|
| + }
|
| + if (/^h[1-6]$/.test(child)
|
| + && isHtmlElement(ancestor)
|
| + && /^H[1-6]$/.test(ancestor.tagName)) {
|
| + return false;
|
| + }
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| +
|
| + // "Let parent be the local name of parent."
|
| + parent_ = parent_.tagName.toLowerCase();
|
| + }
|
| +
|
| + // "If parent is an Element or DocumentFragment, return true."
|
| + if (typeof parent_ == "object"
|
| + && (parent_.nodeType == Node.ELEMENT_NODE
|
| + || parent_.nodeType == Node.DOCUMENT_FRAGMENT_NODE)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If parent is not a string, return false."
|
| + if (typeof parent_ != "string") {
|
| + return false;
|
| + }
|
| +
|
| + // "If parent is on the left-hand side of an entry on the following list,
|
| + // then return true if child is listed on the right-hand side of that
|
| + // entry, and false otherwise."
|
| + switch (parent_) {
|
| + case "colgroup":
|
| + return child == "col";
|
| + case "table":
|
| + return ["caption", "col", "colgroup", "tbody", "td", "tfoot", "th", "thead", "tr"].indexOf(child) != -1;
|
| + case "tbody":
|
| + case "thead":
|
| + case "tfoot":
|
| + return ["td", "th", "tr"].indexOf(child) != -1;
|
| + case "tr":
|
| + return ["td", "th"].indexOf(child) != -1;
|
| + case "dl":
|
| + return ["dt", "dd"].indexOf(child) != -1;
|
| + case "dir":
|
| + case "ol":
|
| + case "ul":
|
| + return ["dir", "li", "ol", "ul"].indexOf(child) != -1;
|
| + case "hgroup":
|
| + return /^h[1-6]$/.test(child);
|
| + }
|
| +
|
| + // "If child is "body", "caption", "col", "colgroup", "frame", "frameset",
|
| + // "head", "html", "tbody", "td", "tfoot", "th", "thead", or "tr", return
|
| + // false."
|
| + if (["body", "caption", "col", "colgroup", "frame", "frameset", "head",
|
| + "html", "tbody", "td", "tfoot", "th", "thead", "tr"].indexOf(child) != -1) {
|
| + return false;
|
| + }
|
| +
|
| + // "If child is "dd" or "dt" and parent is not "dl", return false."
|
| + if (["dd", "dt"].indexOf(child) != -1
|
| + && parent_ != "dl") {
|
| + return false;
|
| + }
|
| +
|
| + // "If child is "li" and parent is not "ol" or "ul", return false."
|
| + if (child == "li"
|
| + && parent_ != "ol"
|
| + && parent_ != "ul") {
|
| + return false;
|
| + }
|
| +
|
| + // "If parent is on the left-hand side of an entry on the following list
|
| + // and child is listed on the right-hand side of that entry, return false."
|
| + var table = [
|
| + [["a"], ["a"]],
|
| + [["dd", "dt"], ["dd", "dt"]],
|
| + [["h1", "h2", "h3", "h4", "h5", "h6"], ["h1", "h2", "h3", "h4", "h5", "h6"]],
|
| + [["li"], ["li"]],
|
| + [["nobr"], ["nobr"]],
|
| + [namesOfElementsWithInlineContents, prohibitedParagraphChildNames],
|
| + [["td", "th"], ["caption", "col", "colgroup", "tbody", "td", "tfoot", "th", "thead", "tr"]],
|
| + ];
|
| + for (var i = 0; i < table.length; i++) {
|
| + if (table[i][0].indexOf(parent_) != -1
|
| + && table[i][1].indexOf(child) != -1) {
|
| + return false;
|
| + }
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| +}
|
| +
|
| +
|
| +//@}
|
| +
|
| +//////////////////////////////////////
|
| +///// Inline formatting commands /////
|
| +//////////////////////////////////////
|
| +
|
| +///// Inline formatting command definitions /////
|
| +//@{
|
| +
|
| +// "A node node is effectively contained in a range range if range is not
|
| +// collapsed, and at least one of the following holds:"
|
| +function isEffectivelyContained(node, range) {
|
| + if (range.collapsed) {
|
| + return false;
|
| + }
|
| +
|
| + // "node is contained in range."
|
| + if (isContained(node, range)) {
|
| + return true;
|
| + }
|
| +
|
| + // "node is range's start node, it is a Text node, and its length is
|
| + // different from range's start offset."
|
| + if (node == range.startContainer
|
| + && node.nodeType == Node.TEXT_NODE
|
| + && getNodeLength(node) != range.startOffset) {
|
| + return true;
|
| + }
|
| +
|
| + // "node is range's end node, it is a Text node, and range's end offset is
|
| + // not 0."
|
| + if (node == range.endContainer
|
| + && node.nodeType == Node.TEXT_NODE
|
| + && range.endOffset != 0) {
|
| + return true;
|
| + }
|
| +
|
| + // "node has at least one child; and all its children are effectively
|
| + // contained in range; and either range's start node is not a descendant of
|
| + // node or is not a Text node or range's start offset is zero; and either
|
| + // range's end node is not a descendant of node or is not a Text node or
|
| + // range's end offset is its end node's length."
|
| + if (node.hasChildNodes()
|
| + && [].every.call(node.childNodes, function(child) { return isEffectivelyContained(child, range) })
|
| + && (!isDescendant(range.startContainer, node)
|
| + || range.startContainer.nodeType != Node.TEXT_NODE
|
| + || range.startOffset == 0)
|
| + && (!isDescendant(range.endContainer, node)
|
| + || range.endContainer.nodeType != Node.TEXT_NODE
|
| + || range.endOffset == getNodeLength(range.endContainer))) {
|
| + return true;
|
| + }
|
| +
|
| + return false;
|
| +}
|
| +
|
| +// Like get(All)ContainedNodes(), but for effectively contained nodes.
|
| +function getEffectivelyContainedNodes(range, condition) {
|
| + if (typeof condition == "undefined") {
|
| + condition = function() { return true };
|
| + }
|
| + var node = range.startContainer;
|
| + while (isEffectivelyContained(node.parentNode, range)) {
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + var stop = nextNodeDescendants(range.endContainer);
|
| +
|
| + var nodeList = [];
|
| + while (isBefore(node, stop)) {
|
| + if (isEffectivelyContained(node, range)
|
| + && condition(node)) {
|
| + nodeList.push(node);
|
| + node = nextNodeDescendants(node);
|
| + continue;
|
| + }
|
| + node = nextNode(node);
|
| + }
|
| + return nodeList;
|
| +}
|
| +
|
| +function getAllEffectivelyContainedNodes(range, condition) {
|
| + if (typeof condition == "undefined") {
|
| + condition = function() { return true };
|
| + }
|
| + var node = range.startContainer;
|
| + while (isEffectivelyContained(node.parentNode, range)) {
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + var stop = nextNodeDescendants(range.endContainer);
|
| +
|
| + var nodeList = [];
|
| + while (isBefore(node, stop)) {
|
| + if (isEffectivelyContained(node, range)
|
| + && condition(node)) {
|
| + nodeList.push(node);
|
| + }
|
| + node = nextNode(node);
|
| + }
|
| + return nodeList;
|
| +}
|
| +
|
| +// "A modifiable element is a b, em, i, s, span, strong, sub, sup, or u element
|
| +// with no attributes except possibly style; or a font element with no
|
| +// attributes except possibly style, color, face, and/or size; or an a element
|
| +// with no attributes except possibly style and/or href."
|
| +function isModifiableElement(node) {
|
| + if (!isHtmlElement(node)) {
|
| + return false;
|
| + }
|
| +
|
| + if (["B", "EM", "I", "S", "SPAN", "STRIKE", "STRONG", "SUB", "SUP", "U"].indexOf(node.tagName) != -1) {
|
| + if (node.attributes.length == 0) {
|
| + return true;
|
| + }
|
| +
|
| + if (node.attributes.length == 1
|
| + && node.hasAttribute("style")) {
|
| + return true;
|
| + }
|
| + }
|
| +
|
| + if (node.tagName == "FONT" || node.tagName == "A") {
|
| + var numAttrs = node.attributes.length;
|
| +
|
| + if (node.hasAttribute("style")) {
|
| + numAttrs--;
|
| + }
|
| +
|
| + if (node.tagName == "FONT") {
|
| + if (node.hasAttribute("color")) {
|
| + numAttrs--;
|
| + }
|
| +
|
| + if (node.hasAttribute("face")) {
|
| + numAttrs--;
|
| + }
|
| +
|
| + if (node.hasAttribute("size")) {
|
| + numAttrs--;
|
| + }
|
| + }
|
| +
|
| + if (node.tagName == "A"
|
| + && node.hasAttribute("href")) {
|
| + numAttrs--;
|
| + }
|
| +
|
| + if (numAttrs == 0) {
|
| + return true;
|
| + }
|
| + }
|
| +
|
| + return false;
|
| +}
|
| +
|
| +function isSimpleModifiableElement(node) {
|
| + // "A simple modifiable element is an HTML element for which at least one
|
| + // of the following holds:"
|
| + if (!isHtmlElement(node)) {
|
| + return false;
|
| + }
|
| +
|
| + // Only these elements can possibly be a simple modifiable element.
|
| + if (["A", "B", "EM", "FONT", "I", "S", "SPAN", "STRIKE", "STRONG", "SUB", "SUP", "U"].indexOf(node.tagName) == -1) {
|
| + return false;
|
| + }
|
| +
|
| + // "It is an a, b, em, font, i, s, span, strike, strong, sub, sup, or u
|
| + // element with no attributes."
|
| + if (node.attributes.length == 0) {
|
| + return true;
|
| + }
|
| +
|
| + // If it's got more than one attribute, everything after this fails.
|
| + if (node.attributes.length > 1) {
|
| + return false;
|
| + }
|
| +
|
| + // "It is an a, b, em, font, i, s, span, strike, strong, sub, sup, or u
|
| + // element with exactly one attribute, which is style, which sets no CSS
|
| + // properties (including invalid or unrecognized properties)."
|
| + //
|
| + // Not gonna try for invalid or unrecognized.
|
| + if (node.hasAttribute("style")
|
| + && node.style.length == 0) {
|
| + return true;
|
| + }
|
| +
|
| + // "It is an a element with exactly one attribute, which is href."
|
| + if (node.tagName == "A"
|
| + && node.hasAttribute("href")) {
|
| + return true;
|
| + }
|
| +
|
| + // "It is a font element with exactly one attribute, which is either color,
|
| + // face, or size."
|
| + if (node.tagName == "FONT"
|
| + && (node.hasAttribute("color")
|
| + || node.hasAttribute("face")
|
| + || node.hasAttribute("size")
|
| + )) {
|
| + return true;
|
| + }
|
| +
|
| + // "It is a b or strong element with exactly one attribute, which is style,
|
| + // and the style attribute sets exactly one CSS property (including invalid
|
| + // or unrecognized properties), which is "font-weight"."
|
| + if ((node.tagName == "B" || node.tagName == "STRONG")
|
| + && node.hasAttribute("style")
|
| + && node.style.length == 1
|
| + && node.style.fontWeight != "") {
|
| + return true;
|
| + }
|
| +
|
| + // "It is an i or em element with exactly one attribute, which is style,
|
| + // and the style attribute sets exactly one CSS property (including invalid
|
| + // or unrecognized properties), which is "font-style"."
|
| + if ((node.tagName == "I" || node.tagName == "EM")
|
| + && node.hasAttribute("style")
|
| + && node.style.length == 1
|
| + && node.style.fontStyle != "") {
|
| + return true;
|
| + }
|
| +
|
| + // "It is an a, font, or span element with exactly one attribute, which is
|
| + // style, and the style attribute sets exactly one CSS property (including
|
| + // invalid or unrecognized properties), and that property is not
|
| + // "text-decoration"."
|
| + if ((node.tagName == "A" || node.tagName == "FONT" || node.tagName == "SPAN")
|
| + && node.hasAttribute("style")
|
| + && node.style.length == 1
|
| + && node.style.textDecoration == "") {
|
| + return true;
|
| + }
|
| +
|
| + // "It is an a, font, s, span, strike, or u element with exactly one
|
| + // attribute, which is style, and the style attribute sets exactly one CSS
|
| + // property (including invalid or unrecognized properties), which is
|
| + // "text-decoration", which is set to "line-through" or "underline" or
|
| + // "overline" or "none"."
|
| + //
|
| + // The weird extra node.style.length check is for Firefox, which as of
|
| + // 8.0a2 has annoying and weird behavior here.
|
| + if (["A", "FONT", "S", "SPAN", "STRIKE", "U"].indexOf(node.tagName) != -1
|
| + && node.hasAttribute("style")
|
| + && (node.style.length == 1
|
| + || (node.style.length == 4
|
| + && "MozTextBlink" in node.style
|
| + && "MozTextDecorationColor" in node.style
|
| + && "MozTextDecorationLine" in node.style
|
| + && "MozTextDecorationStyle" in node.style)
|
| + || (node.style.length == 4
|
| + && "MozTextBlink" in node.style
|
| + && "textDecorationColor" in node.style
|
| + && "textDecorationLine" in node.style
|
| + && "textDecorationStyle" in node.style)
|
| + )
|
| + && (node.style.textDecoration == "line-through"
|
| + || node.style.textDecoration == "underline"
|
| + || node.style.textDecoration == "overline"
|
| + || node.style.textDecoration == "none")) {
|
| + return true;
|
| + }
|
| +
|
| + return false;
|
| +}
|
| +
|
| +// "A formattable node is an editable visible node that is either a Text node,
|
| +// an img, or a br."
|
| +function isFormattableNode(node) {
|
| + return isEditable(node)
|
| + && isVisible(node)
|
| + && (node.nodeType == Node.TEXT_NODE
|
| + || isHtmlElement(node, ["img", "br"]));
|
| +}
|
| +
|
| +// "Two quantities are equivalent values for a command if either both are null,
|
| +// or both are strings and they're equal and the command does not define any
|
| +// equivalent values, or both are strings and the command defines equivalent
|
| +// values and they match the definition."
|
| +function areEquivalentValues(command, val1, val2) {
|
| + if (val1 === null && val2 === null) {
|
| + return true;
|
| + }
|
| +
|
| + if (typeof val1 == "string"
|
| + && typeof val2 == "string"
|
| + && val1 == val2
|
| + && !("equivalentValues" in commands[command])) {
|
| + return true;
|
| + }
|
| +
|
| + if (typeof val1 == "string"
|
| + && typeof val2 == "string"
|
| + && "equivalentValues" in commands[command]
|
| + && commands[command].equivalentValues(val1, val2)) {
|
| + return true;
|
| + }
|
| +
|
| + return false;
|
| +}
|
| +
|
| +// "Two quantities are loosely equivalent values for a command if either they
|
| +// are equivalent values for the command, or if the command is the fontSize
|
| +// command; one of the quantities is one of "x-small", "small", "medium",
|
| +// "large", "x-large", "xx-large", or "xxx-large"; and the other quantity is
|
| +// the resolved value of "font-size" on a font element whose size attribute has
|
| +// the corresponding value set ("1" through "7" respectively)."
|
| +function areLooselyEquivalentValues(command, val1, val2) {
|
| + if (areEquivalentValues(command, val1, val2)) {
|
| + return true;
|
| + }
|
| +
|
| + if (command != "fontsize"
|
| + || typeof val1 != "string"
|
| + || typeof val2 != "string") {
|
| + return false;
|
| + }
|
| +
|
| + // Static variables in JavaScript?
|
| + var callee = areLooselyEquivalentValues;
|
| + if (callee.sizeMap === undefined) {
|
| + callee.sizeMap = {};
|
| + var font = document.createElement("font");
|
| + document.body.appendChild(font);
|
| + ["x-small", "small", "medium", "large", "x-large", "xx-large",
|
| + "xxx-large"].forEach(function(keyword) {
|
| + font.size = cssSizeToLegacy(keyword);
|
| + callee.sizeMap[keyword] = getComputedStyle(font).fontSize;
|
| + });
|
| + document.body.removeChild(font);
|
| + }
|
| +
|
| + return val1 === callee.sizeMap[val2]
|
| + || val2 === callee.sizeMap[val1];
|
| +}
|
| +
|
| +//@}
|
| +///// Assorted inline formatting command algorithms /////
|
| +//@{
|
| +
|
| +function getEffectiveCommandValue(node, command) {
|
| + // "If neither node nor its parent is an Element, return null."
|
| + if (node.nodeType != Node.ELEMENT_NODE
|
| + && (!node.parentNode || node.parentNode.nodeType != Node.ELEMENT_NODE)) {
|
| + return null;
|
| + }
|
| +
|
| + // "If node is not an Element, return the effective command value of its
|
| + // parent for command."
|
| + if (node.nodeType != Node.ELEMENT_NODE) {
|
| + return getEffectiveCommandValue(node.parentNode, command);
|
| + }
|
| +
|
| + // "If command is "createLink" or "unlink":"
|
| + if (command == "createlink" || command == "unlink") {
|
| + // "While node is not null, and is not an a element that has an href
|
| + // attribute, set node to its parent."
|
| + while (node
|
| + && (!isHtmlElement(node)
|
| + || node.tagName != "A"
|
| + || !node.hasAttribute("href"))) {
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "If node is null, return null."
|
| + if (!node) {
|
| + return null;
|
| + }
|
| +
|
| + // "Return the value of node's href attribute."
|
| + return node.getAttribute("href");
|
| + }
|
| +
|
| + // "If command is "backColor" or "hiliteColor":"
|
| + if (command == "backcolor"
|
| + || command == "hilitecolor") {
|
| + // "While the resolved value of "background-color" on node is any
|
| + // fully transparent value, and node's parent is an Element, set
|
| + // node to its parent."
|
| + //
|
| + // Another lame hack to avoid flawed APIs.
|
| + while ((getComputedStyle(node).backgroundColor == "rgba(0, 0, 0, 0)"
|
| + || getComputedStyle(node).backgroundColor === ""
|
| + || getComputedStyle(node).backgroundColor == "transparent")
|
| + && node.parentNode
|
| + && node.parentNode.nodeType == Node.ELEMENT_NODE) {
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "Return the resolved value of "background-color" for node."
|
| + return getComputedStyle(node).backgroundColor;
|
| + }
|
| +
|
| + // "If command is "subscript" or "superscript":"
|
| + if (command == "subscript" || command == "superscript") {
|
| + // "Let affected by subscript and affected by superscript be two
|
| + // boolean variables, both initially false."
|
| + var affectedBySubscript = false;
|
| + var affectedBySuperscript = false;
|
| +
|
| + // "While node is an inline node:"
|
| + while (isInlineNode(node)) {
|
| + var verticalAlign = getComputedStyle(node).verticalAlign;
|
| +
|
| + // "If node is a sub, set affected by subscript to true."
|
| + if (isHtmlElement(node, "sub")) {
|
| + affectedBySubscript = true;
|
| + // "Otherwise, if node is a sup, set affected by superscript to
|
| + // true."
|
| + } else if (isHtmlElement(node, "sup")) {
|
| + affectedBySuperscript = true;
|
| + }
|
| +
|
| + // "Set node to its parent."
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "If affected by subscript and affected by superscript are both true,
|
| + // return the string "mixed"."
|
| + if (affectedBySubscript && affectedBySuperscript) {
|
| + return "mixed";
|
| + }
|
| +
|
| + // "If affected by subscript is true, return "subscript"."
|
| + if (affectedBySubscript) {
|
| + return "subscript";
|
| + }
|
| +
|
| + // "If affected by superscript is true, return "superscript"."
|
| + if (affectedBySuperscript) {
|
| + return "superscript";
|
| + }
|
| +
|
| + // "Return null."
|
| + return null;
|
| + }
|
| +
|
| + // "If command is "strikethrough", and the "text-decoration" property of
|
| + // node or any of its ancestors has resolved value containing
|
| + // "line-through", return "line-through". Otherwise, return null."
|
| + if (command == "strikethrough") {
|
| + do {
|
| + if (getComputedStyle(node).textDecoration.indexOf("line-through") != -1) {
|
| + return "line-through";
|
| + }
|
| + node = node.parentNode;
|
| + } while (node && node.nodeType == Node.ELEMENT_NODE);
|
| + return null;
|
| + }
|
| +
|
| + // "If command is "underline", and the "text-decoration" property of node
|
| + // or any of its ancestors has resolved value containing "underline",
|
| + // return "underline". Otherwise, return null."
|
| + if (command == "underline") {
|
| + do {
|
| + if (getComputedStyle(node).textDecoration.indexOf("underline") != -1) {
|
| + return "underline";
|
| + }
|
| + node = node.parentNode;
|
| + } while (node && node.nodeType == Node.ELEMENT_NODE);
|
| + return null;
|
| + }
|
| +
|
| + if (!("relevantCssProperty" in commands[command])) {
|
| + throw "Bug: no relevantCssProperty for " + command + " in getEffectiveCommandValue";
|
| + }
|
| +
|
| + // "Return the resolved value for node of the relevant CSS property for
|
| + // command."
|
| + return getComputedStyle(node)[commands[command].relevantCssProperty];
|
| +}
|
| +
|
| +function getSpecifiedCommandValue(element, command) {
|
| + // "If command is "backColor" or "hiliteColor" and element's display
|
| + // property does not have resolved value "inline", return null."
|
| + if ((command == "backcolor" || command == "hilitecolor")
|
| + && getComputedStyle(element).display != "inline") {
|
| + return null;
|
| + }
|
| +
|
| + // "If command is "createLink" or "unlink":"
|
| + if (command == "createlink" || command == "unlink") {
|
| + // "If element is an a element and has an href attribute, return the
|
| + // value of that attribute."
|
| + if (isHtmlElement(element)
|
| + && element.tagName == "A"
|
| + && element.hasAttribute("href")) {
|
| + return element.getAttribute("href");
|
| + }
|
| +
|
| + // "Return null."
|
| + return null;
|
| + }
|
| +
|
| + // "If command is "subscript" or "superscript":"
|
| + if (command == "subscript" || command == "superscript") {
|
| + // "If element is a sup, return "superscript"."
|
| + if (isHtmlElement(element, "sup")) {
|
| + return "superscript";
|
| + }
|
| +
|
| + // "If element is a sub, return "subscript"."
|
| + if (isHtmlElement(element, "sub")) {
|
| + return "subscript";
|
| + }
|
| +
|
| + // "Return null."
|
| + return null;
|
| + }
|
| +
|
| + // "If command is "strikethrough", and element has a style attribute set,
|
| + // and that attribute sets "text-decoration":"
|
| + if (command == "strikethrough"
|
| + && element.style.textDecoration != "") {
|
| + // "If element's style attribute sets "text-decoration" to a value
|
| + // containing "line-through", return "line-through"."
|
| + if (element.style.textDecoration.indexOf("line-through") != -1) {
|
| + return "line-through";
|
| + }
|
| +
|
| + // "Return null."
|
| + return null;
|
| + }
|
| +
|
| + // "If command is "strikethrough" and element is a s or strike element,
|
| + // return "line-through"."
|
| + if (command == "strikethrough"
|
| + && isHtmlElement(element, ["S", "STRIKE"])) {
|
| + return "line-through";
|
| + }
|
| +
|
| + // "If command is "underline", and element has a style attribute set, and
|
| + // that attribute sets "text-decoration":"
|
| + if (command == "underline"
|
| + && element.style.textDecoration != "") {
|
| + // "If element's style attribute sets "text-decoration" to a value
|
| + // containing "underline", return "underline"."
|
| + if (element.style.textDecoration.indexOf("underline") != -1) {
|
| + return "underline";
|
| + }
|
| +
|
| + // "Return null."
|
| + return null;
|
| + }
|
| +
|
| + // "If command is "underline" and element is a u element, return
|
| + // "underline"."
|
| + if (command == "underline"
|
| + && isHtmlElement(element, "U")) {
|
| + return "underline";
|
| + }
|
| +
|
| + // "Let property be the relevant CSS property for command."
|
| + var property = commands[command].relevantCssProperty;
|
| +
|
| + // "If property is null, return null."
|
| + if (property === null) {
|
| + return null;
|
| + }
|
| +
|
| + // "If element has a style attribute set, and that attribute has the
|
| + // effect of setting property, return the value that it sets property to."
|
| + if (element.style[property] != "") {
|
| + return element.style[property];
|
| + }
|
| +
|
| + // "If element is a font element that has an attribute whose effect is
|
| + // to create a presentational hint for property, return the value that the
|
| + // hint sets property to. (For a size of 7, this will be the non-CSS value
|
| + // "xxx-large".)"
|
| + if (isHtmlNamespace(element.namespaceURI)
|
| + && element.tagName == "FONT") {
|
| + if (property == "color" && element.hasAttribute("color")) {
|
| + return element.color;
|
| + }
|
| + if (property == "fontFamily" && element.hasAttribute("face")) {
|
| + return element.face;
|
| + }
|
| + if (property == "fontSize" && element.hasAttribute("size")) {
|
| + // This is not even close to correct in general.
|
| + var size = parseInt(element.size);
|
| + if (size < 1) {
|
| + size = 1;
|
| + }
|
| + if (size > 7) {
|
| + size = 7;
|
| + }
|
| + return {
|
| + 1: "x-small",
|
| + 2: "small",
|
| + 3: "medium",
|
| + 4: "large",
|
| + 5: "x-large",
|
| + 6: "xx-large",
|
| + 7: "xxx-large"
|
| + }[size];
|
| + }
|
| + }
|
| +
|
| + // "If element is in the following list, and property is equal to the
|
| + // CSS property name listed for it, return the string listed for it."
|
| + //
|
| + // A list follows, whose meaning is copied here.
|
| + if (property == "fontWeight"
|
| + && (element.tagName == "B" || element.tagName == "STRONG")) {
|
| + return "bold";
|
| + }
|
| + if (property == "fontStyle"
|
| + && (element.tagName == "I" || element.tagName == "EM")) {
|
| + return "italic";
|
| + }
|
| +
|
| + // "Return null."
|
| + return null;
|
| +}
|
| +
|
| +function reorderModifiableDescendants(node, command, newValue) {
|
| + // "Let candidate equal node."
|
| + var candidate = node;
|
| +
|
| + // "While candidate is a modifiable element, and candidate has exactly one
|
| + // child, and that child is also a modifiable element, and candidate is not
|
| + // a simple modifiable element or candidate's specified command value for
|
| + // command is not equivalent to new value, set candidate to its child."
|
| + while (isModifiableElement(candidate)
|
| + && candidate.childNodes.length == 1
|
| + && isModifiableElement(candidate.firstChild)
|
| + && (!isSimpleModifiableElement(candidate)
|
| + || !areEquivalentValues(command, getSpecifiedCommandValue(candidate, command), newValue))) {
|
| + candidate = candidate.firstChild;
|
| + }
|
| +
|
| + // "If candidate is node, or is not a simple modifiable element, or its
|
| + // specified command value is not equivalent to new value, or its effective
|
| + // command value is not loosely equivalent to new value, abort these
|
| + // steps."
|
| + if (candidate == node
|
| + || !isSimpleModifiableElement(candidate)
|
| + || !areEquivalentValues(command, getSpecifiedCommandValue(candidate, command), newValue)
|
| + || !areLooselyEquivalentValues(command, getEffectiveCommandValue(candidate, command), newValue)) {
|
| + return;
|
| + }
|
| +
|
| + // "While candidate has children, insert the first child of candidate into
|
| + // candidate's parent immediately before candidate, preserving ranges."
|
| + while (candidate.hasChildNodes()) {
|
| + movePreservingRanges(candidate.firstChild, candidate.parentNode, getNodeIndex(candidate));
|
| + }
|
| +
|
| + // "Insert candidate into node's parent immediately after node."
|
| + node.parentNode.insertBefore(candidate, node.nextSibling);
|
| +
|
| + // "Append the node as the last child of candidate, preserving ranges."
|
| + movePreservingRanges(node, candidate, -1);
|
| +}
|
| +
|
| +function recordValues(nodeList) {
|
| + // "Let values be a list of (node, command, specified command value)
|
| + // triples, initially empty."
|
| + var values = [];
|
| +
|
| + // "For each node in node list, for each command in the list "subscript",
|
| + // "bold", "fontName", "fontSize", "foreColor", "hiliteColor", "italic",
|
| + // "strikethrough", and "underline" in that order:"
|
| + nodeList.forEach(function(node) {
|
| + ["subscript", "bold", "fontname", "fontsize", "forecolor",
|
| + "hilitecolor", "italic", "strikethrough", "underline"].forEach(function(command) {
|
| + // "Let ancestor equal node."
|
| + var ancestor = node;
|
| +
|
| + // "If ancestor is not an Element, set it to its parent."
|
| + if (ancestor.nodeType != Node.ELEMENT_NODE) {
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| +
|
| + // "While ancestor is an Element and its specified command value
|
| + // for command is null, set it to its parent."
|
| + while (ancestor
|
| + && ancestor.nodeType == Node.ELEMENT_NODE
|
| + && getSpecifiedCommandValue(ancestor, command) === null) {
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| +
|
| + // "If ancestor is an Element, add (node, command, ancestor's
|
| + // specified command value for command) to values. Otherwise add
|
| + // (node, command, null) to values."
|
| + if (ancestor && ancestor.nodeType == Node.ELEMENT_NODE) {
|
| + values.push([node, command, getSpecifiedCommandValue(ancestor, command)]);
|
| + } else {
|
| + values.push([node, command, null]);
|
| + }
|
| + });
|
| + });
|
| +
|
| + // "Return values."
|
| + return values;
|
| +}
|
| +
|
| +function restoreValues(values) {
|
| + // "For each (node, command, value) triple in values:"
|
| + values.forEach(function(triple) {
|
| + var node = triple[0];
|
| + var command = triple[1];
|
| + var value = triple[2];
|
| +
|
| + // "Let ancestor equal node."
|
| + var ancestor = node;
|
| +
|
| + // "If ancestor is not an Element, set it to its parent."
|
| + if (!ancestor || ancestor.nodeType != Node.ELEMENT_NODE) {
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| +
|
| + // "While ancestor is an Element and its specified command value for
|
| + // command is null, set it to its parent."
|
| + while (ancestor
|
| + && ancestor.nodeType == Node.ELEMENT_NODE
|
| + && getSpecifiedCommandValue(ancestor, command) === null) {
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| +
|
| + // "If value is null and ancestor is an Element, push down values on
|
| + // node for command, with new value null."
|
| + if (value === null
|
| + && ancestor
|
| + && ancestor.nodeType == Node.ELEMENT_NODE) {
|
| + pushDownValues(node, command, null);
|
| +
|
| + // "Otherwise, if ancestor is an Element and its specified command
|
| + // value for command is not equivalent to value, or if ancestor is not
|
| + // an Element and value is not null, force the value of command to
|
| + // value on node."
|
| + } else if ((ancestor
|
| + && ancestor.nodeType == Node.ELEMENT_NODE
|
| + && !areEquivalentValues(command, getSpecifiedCommandValue(ancestor, command), value))
|
| + || ((!ancestor || ancestor.nodeType != Node.ELEMENT_NODE)
|
| + && value !== null)) {
|
| + forceValue(node, command, value);
|
| + }
|
| + });
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Clearing an element's value /////
|
| +//@{
|
| +
|
| +function clearValue(element, command) {
|
| + // "If element is not editable, return the empty list."
|
| + if (!isEditable(element)) {
|
| + return [];
|
| + }
|
| +
|
| + // "If element's specified command value for command is null, return the
|
| + // empty list."
|
| + if (getSpecifiedCommandValue(element, command) === null) {
|
| + return [];
|
| + }
|
| +
|
| + // "If element is a simple modifiable element:"
|
| + if (isSimpleModifiableElement(element)) {
|
| + // "Let children be the children of element."
|
| + var children = Array.prototype.slice.call(element.childNodes);
|
| +
|
| + // "For each child in children, insert child into element's parent
|
| + // immediately before element, preserving ranges."
|
| + for (var i = 0; i < children.length; i++) {
|
| + movePreservingRanges(children[i], element.parentNode, getNodeIndex(element));
|
| + }
|
| +
|
| + // "Remove element from its parent."
|
| + element.parentNode.removeChild(element);
|
| +
|
| + // "Return children."
|
| + return children;
|
| + }
|
| +
|
| + // "If command is "strikethrough", and element has a style attribute that
|
| + // sets "text-decoration" to some value containing "line-through", delete
|
| + // "line-through" from the value."
|
| + if (command == "strikethrough"
|
| + && element.style.textDecoration.indexOf("line-through") != -1) {
|
| + if (element.style.textDecoration == "line-through") {
|
| + element.style.textDecoration = "";
|
| + } else {
|
| + element.style.textDecoration = element.style.textDecoration.replace("line-through", "");
|
| + }
|
| + if (element.getAttribute("style") == "") {
|
| + element.removeAttribute("style");
|
| + }
|
| + }
|
| +
|
| + // "If command is "underline", and element has a style attribute that sets
|
| + // "text-decoration" to some value containing "underline", delete
|
| + // "underline" from the value."
|
| + if (command == "underline"
|
| + && element.style.textDecoration.indexOf("underline") != -1) {
|
| + if (element.style.textDecoration == "underline") {
|
| + element.style.textDecoration = "";
|
| + } else {
|
| + element.style.textDecoration = element.style.textDecoration.replace("underline", "");
|
| + }
|
| + if (element.getAttribute("style") == "") {
|
| + element.removeAttribute("style");
|
| + }
|
| + }
|
| +
|
| + // "If the relevant CSS property for command is not null, unset the CSS
|
| + // property property of element."
|
| + if (commands[command].relevantCssProperty !== null) {
|
| + element.style[commands[command].relevantCssProperty] = '';
|
| + if (element.getAttribute("style") == "") {
|
| + element.removeAttribute("style");
|
| + }
|
| + }
|
| +
|
| + // "If element is a font element:"
|
| + if (isHtmlNamespace(element.namespaceURI) && element.tagName == "FONT") {
|
| + // "If command is "foreColor", unset element's color attribute, if set."
|
| + if (command == "forecolor") {
|
| + element.removeAttribute("color");
|
| + }
|
| +
|
| + // "If command is "fontName", unset element's face attribute, if set."
|
| + if (command == "fontname") {
|
| + element.removeAttribute("face");
|
| + }
|
| +
|
| + // "If command is "fontSize", unset element's size attribute, if set."
|
| + if (command == "fontsize") {
|
| + element.removeAttribute("size");
|
| + }
|
| + }
|
| +
|
| + // "If element is an a element and command is "createLink" or "unlink",
|
| + // unset the href property of element."
|
| + if (isHtmlElement(element, "A")
|
| + && (command == "createlink" || command == "unlink")) {
|
| + element.removeAttribute("href");
|
| + }
|
| +
|
| + // "If element's specified command value for command is null, return the
|
| + // empty list."
|
| + if (getSpecifiedCommandValue(element, command) === null) {
|
| + return [];
|
| + }
|
| +
|
| + // "Set the tag name of element to "span", and return the one-node list
|
| + // consisting of the result."
|
| + return [setTagName(element, "span")];
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Pushing down values /////
|
| +//@{
|
| +
|
| +function pushDownValues(node, command, newValue) {
|
| + // "If node's parent is not an Element, abort this algorithm."
|
| + if (!node.parentNode
|
| + || node.parentNode.nodeType != Node.ELEMENT_NODE) {
|
| + return;
|
| + }
|
| +
|
| + // "If the effective command value of command is loosely equivalent to new
|
| + // value on node, abort this algorithm."
|
| + if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
|
| + return;
|
| + }
|
| +
|
| + // "Let current ancestor be node's parent."
|
| + var currentAncestor = node.parentNode;
|
| +
|
| + // "Let ancestor list be a list of Nodes, initially empty."
|
| + var ancestorList = [];
|
| +
|
| + // "While current ancestor is an editable Element and the effective command
|
| + // value of command is not loosely equivalent to new value on it, append
|
| + // current ancestor to ancestor list, then set current ancestor to its
|
| + // parent."
|
| + while (isEditable(currentAncestor)
|
| + && currentAncestor.nodeType == Node.ELEMENT_NODE
|
| + && !areLooselyEquivalentValues(command, getEffectiveCommandValue(currentAncestor, command), newValue)) {
|
| + ancestorList.push(currentAncestor);
|
| + currentAncestor = currentAncestor.parentNode;
|
| + }
|
| +
|
| + // "If ancestor list is empty, abort this algorithm."
|
| + if (!ancestorList.length) {
|
| + return;
|
| + }
|
| +
|
| + // "Let propagated value be the specified command value of command on the
|
| + // last member of ancestor list."
|
| + var propagatedValue = getSpecifiedCommandValue(ancestorList[ancestorList.length - 1], command);
|
| +
|
| + // "If propagated value is null and is not equal to new value, abort this
|
| + // algorithm."
|
| + if (propagatedValue === null && propagatedValue != newValue) {
|
| + return;
|
| + }
|
| +
|
| + // "If the effective command value for the parent of the last member of
|
| + // ancestor list is not loosely equivalent to new value, and new value is
|
| + // not null, abort this algorithm."
|
| + if (newValue !== null
|
| + && !areLooselyEquivalentValues(command, getEffectiveCommandValue(ancestorList[ancestorList.length - 1].parentNode, command), newValue)) {
|
| + return;
|
| + }
|
| +
|
| + // "While ancestor list is not empty:"
|
| + while (ancestorList.length) {
|
| + // "Let current ancestor be the last member of ancestor list."
|
| + // "Remove the last member from ancestor list."
|
| + var currentAncestor = ancestorList.pop();
|
| +
|
| + // "If the specified command value of current ancestor for command is
|
| + // not null, set propagated value to that value."
|
| + if (getSpecifiedCommandValue(currentAncestor, command) !== null) {
|
| + propagatedValue = getSpecifiedCommandValue(currentAncestor, command);
|
| + }
|
| +
|
| + // "Let children be the children of current ancestor."
|
| + var children = Array.prototype.slice.call(currentAncestor.childNodes);
|
| +
|
| + // "If the specified command value of current ancestor for command is
|
| + // not null, clear the value of current ancestor."
|
| + if (getSpecifiedCommandValue(currentAncestor, command) !== null) {
|
| + clearValue(currentAncestor, command);
|
| + }
|
| +
|
| + // "For every child in children:"
|
| + for (var i = 0; i < children.length; i++) {
|
| + var child = children[i];
|
| +
|
| + // "If child is node, continue with the next child."
|
| + if (child == node) {
|
| + continue;
|
| + }
|
| +
|
| + // "If child is an Element whose specified command value for
|
| + // command is neither null nor equivalent to propagated value,
|
| + // continue with the next child."
|
| + if (child.nodeType == Node.ELEMENT_NODE
|
| + && getSpecifiedCommandValue(child, command) !== null
|
| + && !areEquivalentValues(command, propagatedValue, getSpecifiedCommandValue(child, command))) {
|
| + continue;
|
| + }
|
| +
|
| + // "If child is the last member of ancestor list, continue with the
|
| + // next child."
|
| + if (child == ancestorList[ancestorList.length - 1]) {
|
| + continue;
|
| + }
|
| +
|
| + // "Force the value of child, with command as in this algorithm
|
| + // and new value equal to propagated value."
|
| + forceValue(child, command, propagatedValue);
|
| + }
|
| + }
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Forcing the value of a node /////
|
| +//@{
|
| +
|
| +function forceValue(node, command, newValue) {
|
| + // "If node's parent is null, abort this algorithm."
|
| + if (!node.parentNode) {
|
| + return;
|
| + }
|
| +
|
| + // "If new value is null, abort this algorithm."
|
| + if (newValue === null) {
|
| + return;
|
| + }
|
| +
|
| + // "If node is an allowed child of "span":"
|
| + if (isAllowedChild(node, "span")) {
|
| + // "Reorder modifiable descendants of node's previousSibling."
|
| + reorderModifiableDescendants(node.previousSibling, command, newValue);
|
| +
|
| + // "Reorder modifiable descendants of node's nextSibling."
|
| + reorderModifiableDescendants(node.nextSibling, command, newValue);
|
| +
|
| + // "Wrap the one-node list consisting of node, with sibling criteria
|
| + // returning true for a simple modifiable element whose specified
|
| + // command value is equivalent to new value and whose effective command
|
| + // value is loosely equivalent to new value and false otherwise, and
|
| + // with new parent instructions returning null."
|
| + wrap([node],
|
| + function(node) {
|
| + return isSimpleModifiableElement(node)
|
| + && areEquivalentValues(command, getSpecifiedCommandValue(node, command), newValue)
|
| + && areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue);
|
| + },
|
| + function() { return null }
|
| + );
|
| + }
|
| +
|
| + // "If node is invisible, abort this algorithm."
|
| + if (isInvisible(node)) {
|
| + return;
|
| + }
|
| +
|
| + // "If the effective command value of command is loosely equivalent to new
|
| + // value on node, abort this algorithm."
|
| + if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
|
| + return;
|
| + }
|
| +
|
| + // "If node is not an allowed child of "span":"
|
| + if (!isAllowedChild(node, "span")) {
|
| + // "Let children be all children of node, omitting any that are
|
| + // Elements whose specified command value for command is neither null
|
| + // nor equivalent to new value."
|
| + var children = [];
|
| + for (var i = 0; i < node.childNodes.length; i++) {
|
| + if (node.childNodes[i].nodeType == Node.ELEMENT_NODE) {
|
| + var specifiedValue = getSpecifiedCommandValue(node.childNodes[i], command);
|
| +
|
| + if (specifiedValue !== null
|
| + && !areEquivalentValues(command, newValue, specifiedValue)) {
|
| + continue;
|
| + }
|
| + }
|
| + children.push(node.childNodes[i]);
|
| + }
|
| +
|
| + // "Force the value of each Node in children, with command and new
|
| + // value as in this invocation of the algorithm."
|
| + for (var i = 0; i < children.length; i++) {
|
| + forceValue(children[i], command, newValue);
|
| + }
|
| +
|
| + // "Abort this algorithm."
|
| + return;
|
| + }
|
| +
|
| + // "If the effective command value of command is loosely equivalent to new
|
| + // value on node, abort this algorithm."
|
| + if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
|
| + return;
|
| + }
|
| +
|
| + // "Let new parent be null."
|
| + var newParent = null;
|
| +
|
| + // "If the CSS styling flag is false:"
|
| + if (!cssStylingFlag) {
|
| + // "If command is "bold" and new value is "bold", let new parent be the
|
| + // result of calling createElement("b") on the ownerDocument of node."
|
| + if (command == "bold" && (newValue == "bold" || newValue == "700")) {
|
| + newParent = node.ownerDocument.createElement("b");
|
| + }
|
| +
|
| + // "If command is "italic" and new value is "italic", let new parent be
|
| + // the result of calling createElement("i") on the ownerDocument of
|
| + // node."
|
| + if (command == "italic" && newValue == "italic") {
|
| + newParent = node.ownerDocument.createElement("i");
|
| + }
|
| +
|
| + // "If command is "strikethrough" and new value is "line-through", let
|
| + // new parent be the result of calling createElement("s") on the
|
| + // ownerDocument of node."
|
| + if (command == "strikethrough" && newValue == "line-through") {
|
| + newParent = node.ownerDocument.createElement("s");
|
| + }
|
| +
|
| + // "If command is "underline" and new value is "underline", let new
|
| + // parent be the result of calling createElement("u") on the
|
| + // ownerDocument of node."
|
| + if (command == "underline" && newValue == "underline") {
|
| + newParent = node.ownerDocument.createElement("u");
|
| + }
|
| +
|
| + // "If command is "foreColor", and new value is fully opaque with red,
|
| + // green, and blue components in the range 0 to 255:"
|
| + if (command == "forecolor" && parseSimpleColor(newValue)) {
|
| + // "Let new parent be the result of calling createElement("font")
|
| + // on the ownerDocument of node."
|
| + newParent = node.ownerDocument.createElement("font");
|
| +
|
| + // "Set the color attribute of new parent to the result of applying
|
| + // the rules for serializing simple color values to new value
|
| + // (interpreted as a simple color)."
|
| + newParent.setAttribute("color", parseSimpleColor(newValue));
|
| + }
|
| +
|
| + // "If command is "fontName", let new parent be the result of calling
|
| + // createElement("font") on the ownerDocument of node, then set the
|
| + // face attribute of new parent to new value."
|
| + if (command == "fontname") {
|
| + newParent = node.ownerDocument.createElement("font");
|
| + newParent.face = newValue;
|
| + }
|
| + }
|
| +
|
| + // "If command is "createLink" or "unlink":"
|
| + if (command == "createlink" || command == "unlink") {
|
| + // "Let new parent be the result of calling createElement("a") on the
|
| + // ownerDocument of node."
|
| + newParent = node.ownerDocument.createElement("a");
|
| +
|
| + // "Set the href attribute of new parent to new value."
|
| + newParent.setAttribute("href", newValue);
|
| +
|
| + // "Let ancestor be node's parent."
|
| + var ancestor = node.parentNode;
|
| +
|
| + // "While ancestor is not null:"
|
| + while (ancestor) {
|
| + // "If ancestor is an a, set the tag name of ancestor to "span",
|
| + // and let ancestor be the result."
|
| + if (isHtmlElement(ancestor, "A")) {
|
| + ancestor = setTagName(ancestor, "span");
|
| + }
|
| +
|
| + // "Set ancestor to its parent."
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| + }
|
| +
|
| + // "If command is "fontSize"; and new value is one of "x-small", "small",
|
| + // "medium", "large", "x-large", "xx-large", or "xxx-large"; and either the
|
| + // CSS styling flag is false, or new value is "xxx-large": let new parent
|
| + // be the result of calling createElement("font") on the ownerDocument of
|
| + // node, then set the size attribute of new parent to the number from the
|
| + // following table based on new value: [table omitted]"
|
| + if (command == "fontsize"
|
| + && ["x-small", "small", "medium", "large", "x-large", "xx-large", "xxx-large"].indexOf(newValue) != -1
|
| + && (!cssStylingFlag || newValue == "xxx-large")) {
|
| + newParent = node.ownerDocument.createElement("font");
|
| + newParent.size = cssSizeToLegacy(newValue);
|
| + }
|
| +
|
| + // "If command is "subscript" or "superscript" and new value is
|
| + // "subscript", let new parent be the result of calling
|
| + // createElement("sub") on the ownerDocument of node."
|
| + if ((command == "subscript" || command == "superscript")
|
| + && newValue == "subscript") {
|
| + newParent = node.ownerDocument.createElement("sub");
|
| + }
|
| +
|
| + // "If command is "subscript" or "superscript" and new value is
|
| + // "superscript", let new parent be the result of calling
|
| + // createElement("sup") on the ownerDocument of node."
|
| + if ((command == "subscript" || command == "superscript")
|
| + && newValue == "superscript") {
|
| + newParent = node.ownerDocument.createElement("sup");
|
| + }
|
| +
|
| + // "If new parent is null, let new parent be the result of calling
|
| + // createElement("span") on the ownerDocument of node."
|
| + if (!newParent) {
|
| + newParent = node.ownerDocument.createElement("span");
|
| + }
|
| +
|
| + // "Insert new parent in node's parent before node."
|
| + node.parentNode.insertBefore(newParent, node);
|
| +
|
| + // "If the effective command value of command for new parent is not loosely
|
| + // equivalent to new value, and the relevant CSS property for command is
|
| + // not null, set that CSS property of new parent to new value (if the new
|
| + // value would be valid)."
|
| + var property = commands[command].relevantCssProperty;
|
| + if (property !== null
|
| + && !areLooselyEquivalentValues(command, getEffectiveCommandValue(newParent, command), newValue)) {
|
| + newParent.style[property] = newValue;
|
| + }
|
| +
|
| + // "If command is "strikethrough", and new value is "line-through", and the
|
| + // effective command value of "strikethrough" for new parent is not
|
| + // "line-through", set the "text-decoration" property of new parent to
|
| + // "line-through"."
|
| + if (command == "strikethrough"
|
| + && newValue == "line-through"
|
| + && getEffectiveCommandValue(newParent, "strikethrough") != "line-through") {
|
| + newParent.style.textDecoration = "line-through";
|
| + }
|
| +
|
| + // "If command is "underline", and new value is "underline", and the
|
| + // effective command value of "underline" for new parent is not
|
| + // "underline", set the "text-decoration" property of new parent to
|
| + // "underline"."
|
| + if (command == "underline"
|
| + && newValue == "underline"
|
| + && getEffectiveCommandValue(newParent, "underline") != "underline") {
|
| + newParent.style.textDecoration = "underline";
|
| + }
|
| +
|
| + // "Append node to new parent as its last child, preserving ranges."
|
| + movePreservingRanges(node, newParent, newParent.childNodes.length);
|
| +
|
| + // "If node is an Element and the effective command value of command for
|
| + // node is not loosely equivalent to new value:"
|
| + if (node.nodeType == Node.ELEMENT_NODE
|
| + && !areEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
|
| + // "Insert node into the parent of new parent before new parent,
|
| + // preserving ranges."
|
| + movePreservingRanges(node, newParent.parentNode, getNodeIndex(newParent));
|
| +
|
| + // "Remove new parent from its parent."
|
| + newParent.parentNode.removeChild(newParent);
|
| +
|
| + // "Let children be all children of node, omitting any that are
|
| + // Elements whose specified command value for command is neither null
|
| + // nor equivalent to new value."
|
| + var children = [];
|
| + for (var i = 0; i < node.childNodes.length; i++) {
|
| + if (node.childNodes[i].nodeType == Node.ELEMENT_NODE) {
|
| + var specifiedValue = getSpecifiedCommandValue(node.childNodes[i], command);
|
| +
|
| + if (specifiedValue !== null
|
| + && !areEquivalentValues(command, newValue, specifiedValue)) {
|
| + continue;
|
| + }
|
| + }
|
| + children.push(node.childNodes[i]);
|
| + }
|
| +
|
| + // "Force the value of each Node in children, with command and new
|
| + // value as in this invocation of the algorithm."
|
| + for (var i = 0; i < children.length; i++) {
|
| + forceValue(children[i], command, newValue);
|
| + }
|
| + }
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Setting the selection's value /////
|
| +//@{
|
| +
|
| +function setSelectionValue(command, newValue) {
|
| + // "If there is no formattable node effectively contained in the active
|
| + // range:"
|
| + if (!getAllEffectivelyContainedNodes(getActiveRange())
|
| + .some(isFormattableNode)) {
|
| + // "If command has inline command activated values, set the state
|
| + // override to true if new value is among them and false if it's not."
|
| + if ("inlineCommandActivatedValues" in commands[command]) {
|
| + setStateOverride(command, commands[command].inlineCommandActivatedValues
|
| + .indexOf(newValue) != -1);
|
| + }
|
| +
|
| + // "If command is "subscript", unset the state override for
|
| + // "superscript"."
|
| + if (command == "subscript") {
|
| + unsetStateOverride("superscript");
|
| + }
|
| +
|
| + // "If command is "superscript", unset the state override for
|
| + // "subscript"."
|
| + if (command == "superscript") {
|
| + unsetStateOverride("subscript");
|
| + }
|
| +
|
| + // "If new value is null, unset the value override (if any)."
|
| + if (newValue === null) {
|
| + unsetValueOverride(command);
|
| +
|
| + // "Otherwise, if command is "createLink" or it has a value specified,
|
| + // set the value override to new value."
|
| + } else if (command == "createlink" || "value" in commands[command]) {
|
| + setValueOverride(command, newValue);
|
| + }
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "If the active range's start node is an editable Text node, and its
|
| + // start offset is neither zero nor its start node's length, call
|
| + // splitText() on the active range's start node, with argument equal to the
|
| + // active range's start offset. Then set the active range's start node to
|
| + // the result, and its start offset to zero."
|
| + if (isEditable(getActiveRange().startContainer)
|
| + && getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
| + && getActiveRange().startOffset != 0
|
| + && getActiveRange().startOffset != getNodeLength(getActiveRange().startContainer)) {
|
| + // Account for browsers not following range mutation rules
|
| + var newActiveRange = document.createRange();
|
| + var newNode;
|
| + if (getActiveRange().startContainer == getActiveRange().endContainer) {
|
| + var newEndOffset = getActiveRange().endOffset - getActiveRange().startOffset;
|
| + newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
|
| + newActiveRange.setEnd(newNode, newEndOffset);
|
| + getActiveRange().setEnd(newNode, newEndOffset);
|
| + } else {
|
| + newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
|
| + }
|
| + newActiveRange.setStart(newNode, 0);
|
| + getSelection().removeAllRanges();
|
| + getSelection().addRange(newActiveRange);
|
| +
|
| + getActiveRange().setStart(newNode, 0);
|
| + }
|
| +
|
| + // "If the active range's end node is an editable Text node, and its end
|
| + // offset is neither zero nor its end node's length, call splitText() on
|
| + // the active range's end node, with argument equal to the active range's
|
| + // end offset."
|
| + if (isEditable(getActiveRange().endContainer)
|
| + && getActiveRange().endContainer.nodeType == Node.TEXT_NODE
|
| + && getActiveRange().endOffset != 0
|
| + && getActiveRange().endOffset != getNodeLength(getActiveRange().endContainer)) {
|
| + // IE seems to mutate the range incorrectly here, so we need correction
|
| + // here as well. The active range will be temporarily in orphaned
|
| + // nodes, so calling getActiveRange() after splitText() but before
|
| + // fixing the range will throw an exception.
|
| + var activeRange = getActiveRange();
|
| + var newStart = [activeRange.startContainer, activeRange.startOffset];
|
| + var newEnd = [activeRange.endContainer, activeRange.endOffset];
|
| + activeRange.endContainer.splitText(activeRange.endOffset);
|
| + activeRange.setStart(newStart[0], newStart[1]);
|
| + activeRange.setEnd(newEnd[0], newEnd[1]);
|
| +
|
| + getSelection().removeAllRanges();
|
| + getSelection().addRange(activeRange);
|
| + }
|
| +
|
| + // "Let element list be all editable Elements effectively contained in the
|
| + // active range.
|
| + //
|
| + // "For each element in element list, clear the value of element."
|
| + getAllEffectivelyContainedNodes(getActiveRange(), function(node) {
|
| + return isEditable(node) && node.nodeType == Node.ELEMENT_NODE;
|
| + }).forEach(function(element) {
|
| + clearValue(element, command);
|
| + });
|
| +
|
| + // "Let node list be all editable nodes effectively contained in the active
|
| + // range.
|
| + //
|
| + // "For each node in node list:"
|
| + getAllEffectivelyContainedNodes(getActiveRange(), isEditable).forEach(function(node) {
|
| + // "Push down values on node."
|
| + pushDownValues(node, command, newValue);
|
| +
|
| + // "If node is an allowed child of span, force the value of node."
|
| + if (isAllowedChild(node, "span")) {
|
| + forceValue(node, command, newValue);
|
| + }
|
| + });
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// The backColor command /////
|
| +//@{
|
| +commands.backcolor = {
|
| + // Copy-pasted, same as hiliteColor
|
| + action: function(value) {
|
| + // Action is further copy-pasted, same as foreColor
|
| +
|
| + // "If value is not a valid CSS color, prepend "#" to it."
|
| + //
|
| + // "If value is still not a valid CSS color, or if it is currentColor,
|
| + // return false."
|
| + //
|
| + // Cheap hack for testing, no attempt to be comprehensive.
|
| + if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
|
| + value = "#" + value;
|
| + }
|
| + if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
|
| + && !parseSimpleColor(value)
|
| + && value.toLowerCase() != "transparent") {
|
| + return false;
|
| + }
|
| +
|
| + // "Set the selection's value to value."
|
| + setSelectionValue("backcolor", value);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }, standardInlineValueCommand: true, relevantCssProperty: "backgroundColor",
|
| + equivalentValues: function(val1, val2) {
|
| + // "Either both strings are valid CSS colors and have the same red,
|
| + // green, blue, and alpha components, or neither string is a valid CSS
|
| + // color."
|
| + return normalizeColor(val1) === normalizeColor(val2);
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The bold command /////
|
| +//@{
|
| +commands.bold = {
|
| + action: function() {
|
| + // "If queryCommandState("bold") returns true, set the selection's
|
| + // value to "normal". Otherwise set the selection's value to "bold".
|
| + // Either way, return true."
|
| + if (myQueryCommandState("bold")) {
|
| + setSelectionValue("bold", "normal");
|
| + } else {
|
| + setSelectionValue("bold", "bold");
|
| + }
|
| + return true;
|
| + }, inlineCommandActivatedValues: ["bold", "600", "700", "800", "900"],
|
| + relevantCssProperty: "fontWeight",
|
| + equivalentValues: function(val1, val2) {
|
| + // "Either the two strings are equal, or one is "bold" and the other is
|
| + // "700", or one is "normal" and the other is "400"."
|
| + return val1 == val2
|
| + || (val1 == "bold" && val2 == "700")
|
| + || (val1 == "700" && val2 == "bold")
|
| + || (val1 == "normal" && val2 == "400")
|
| + || (val1 == "400" && val2 == "normal");
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The createLink command /////
|
| +//@{
|
| +commands.createlink = {
|
| + action: function(value) {
|
| + // "If value is the empty string, return false."
|
| + if (value === "") {
|
| + return false;
|
| + }
|
| +
|
| + // "For each editable a element that has an href attribute and is an
|
| + // ancestor of some node effectively contained in the active range, set
|
| + // that a element's href attribute to value."
|
| + //
|
| + // TODO: We don't actually do this in tree order, not that it matters
|
| + // unless you're spying with mutation events.
|
| + getAllEffectivelyContainedNodes(getActiveRange()).forEach(function(node) {
|
| + getAncestors(node).forEach(function(ancestor) {
|
| + if (isEditable(ancestor)
|
| + && isHtmlElement(ancestor, "a")
|
| + && ancestor.hasAttribute("href")) {
|
| + ancestor.setAttribute("href", value);
|
| + }
|
| + });
|
| + });
|
| +
|
| + // "Set the selection's value to value."
|
| + setSelectionValue("createlink", value);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The fontName command /////
|
| +//@{
|
| +commands.fontname = {
|
| + action: function(value) {
|
| + // "Set the selection's value to value, then return true."
|
| + setSelectionValue("fontname", value);
|
| + return true;
|
| + }, standardInlineValueCommand: true, relevantCssProperty: "fontFamily"
|
| +};
|
| +
|
| +//@}
|
| +///// The fontSize command /////
|
| +//@{
|
| +
|
| +// Helper function for fontSize's action plus queryOutputHelper. It's just the
|
| +// middle of fontSize's action, ripped out into its own function. Returns null
|
| +// if the size is invalid.
|
| +function normalizeFontSize(value) {
|
| + // "Strip leading and trailing whitespace from value."
|
| + //
|
| + // Cheap hack, not following the actual algorithm.
|
| + value = value.trim();
|
| +
|
| + // "If value is not a valid floating point number, and would not be a valid
|
| + // floating point number if a single leading "+" character were stripped,
|
| + // return false."
|
| + if (!/^[-+]?[0-9]+(\.[0-9]+)?([eE][-+]?[0-9]+)?$/.test(value)) {
|
| + return null;
|
| + }
|
| +
|
| + var mode;
|
| +
|
| + // "If the first character of value is "+", delete the character and let
|
| + // mode be "relative-plus"."
|
| + if (value[0] == "+") {
|
| + value = value.slice(1);
|
| + mode = "relative-plus";
|
| + // "Otherwise, if the first character of value is "-", delete the character
|
| + // and let mode be "relative-minus"."
|
| + } else if (value[0] == "-") {
|
| + value = value.slice(1);
|
| + mode = "relative-minus";
|
| + // "Otherwise, let mode be "absolute"."
|
| + } else {
|
| + mode = "absolute";
|
| + }
|
| +
|
| + // "Apply the rules for parsing non-negative integers to value, and let
|
| + // number be the result."
|
| + //
|
| + // Another cheap hack.
|
| + var num = parseInt(value);
|
| +
|
| + // "If mode is "relative-plus", add three to number."
|
| + if (mode == "relative-plus") {
|
| + num += 3;
|
| + }
|
| +
|
| + // "If mode is "relative-minus", negate number, then add three to it."
|
| + if (mode == "relative-minus") {
|
| + num = 3 - num;
|
| + }
|
| +
|
| + // "If number is less than one, let number equal 1."
|
| + if (num < 1) {
|
| + num = 1;
|
| + }
|
| +
|
| + // "If number is greater than seven, let number equal 7."
|
| + if (num > 7) {
|
| + num = 7;
|
| + }
|
| +
|
| + // "Set value to the string here corresponding to number:" [table omitted]
|
| + value = {
|
| + 1: "x-small",
|
| + 2: "small",
|
| + 3: "medium",
|
| + 4: "large",
|
| + 5: "x-large",
|
| + 6: "xx-large",
|
| + 7: "xxx-large"
|
| + }[num];
|
| +
|
| + return value;
|
| +}
|
| +
|
| +commands.fontsize = {
|
| + action: function(value) {
|
| + value = normalizeFontSize(value);
|
| + if (value === null) {
|
| + return false;
|
| + }
|
| +
|
| + // "Set the selection's value to value."
|
| + setSelectionValue("fontsize", value);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }, indeterm: function() {
|
| + // "True if among formattable nodes that are effectively contained in
|
| + // the active range, there are two that have distinct effective command
|
| + // values. Otherwise false."
|
| + return getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)
|
| + .map(function(node) {
|
| + return getEffectiveCommandValue(node, "fontsize");
|
| + }).filter(function(value, i, arr) {
|
| + return arr.slice(0, i).indexOf(value) == -1;
|
| + }).length >= 2;
|
| + }, value: function() {
|
| + // "If the active range is null, return the empty string."
|
| + if (!getActiveRange()) {
|
| + return "";
|
| + }
|
| +
|
| + // "Let pixel size be the effective command value of the first
|
| + // formattable node that is effectively contained in the active range,
|
| + // or if there is no such node, the effective command value of the
|
| + // active range's start node, in either case interpreted as a number of
|
| + // pixels."
|
| + var node = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)[0];
|
| + if (node === undefined) {
|
| + node = getActiveRange().startContainer;
|
| + }
|
| + var pixelSize = getEffectiveCommandValue(node, "fontsize");
|
| +
|
| + // "Return the legacy font size for pixel size."
|
| + return getLegacyFontSize(pixelSize);
|
| + }, relevantCssProperty: "fontSize"
|
| +};
|
| +
|
| +function getLegacyFontSize(size) {
|
| + if (getLegacyFontSize.resultCache === undefined) {
|
| + getLegacyFontSize.resultCache = {};
|
| + }
|
| +
|
| + if (getLegacyFontSize.resultCache[size] !== undefined) {
|
| + return getLegacyFontSize.resultCache[size];
|
| + }
|
| +
|
| + // For convenience in other places in my code, I handle all sizes, not just
|
| + // pixel sizes as the spec says. This means pixel sizes have to be passed
|
| + // in suffixed with "px", not as plain numbers.
|
| + if (normalizeFontSize(size) !== null) {
|
| + return getLegacyFontSize.resultCache[size] = cssSizeToLegacy(normalizeFontSize(size));
|
| + }
|
| +
|
| + if (["x-small", "x-small", "small", "medium", "large", "x-large", "xx-large", "xxx-large"].indexOf(size) == -1
|
| + && !/^[0-9]+(\.[0-9]+)?(cm|mm|in|pt|pc|px)$/.test(size)) {
|
| + // There is no sensible legacy size for things like "2em".
|
| + return getLegacyFontSize.resultCache[size] = null;
|
| + }
|
| +
|
| + var font = document.createElement("font");
|
| + document.body.appendChild(font);
|
| + if (size == "xxx-large") {
|
| + font.size = 7;
|
| + } else {
|
| + font.style.fontSize = size;
|
| + }
|
| + var pixelSize = parseInt(getComputedStyle(font).fontSize);
|
| + document.body.removeChild(font);
|
| +
|
| + // "Let returned size be 1."
|
| + var returnedSize = 1;
|
| +
|
| + // "While returned size is less than 7:"
|
| + while (returnedSize < 7) {
|
| + // "Let lower bound be the resolved value of "font-size" in pixels
|
| + // of a font element whose size attribute is set to returned size."
|
| + var font = document.createElement("font");
|
| + font.size = returnedSize;
|
| + document.body.appendChild(font);
|
| + var lowerBound = parseInt(getComputedStyle(font).fontSize);
|
| +
|
| + // "Let upper bound be the resolved value of "font-size" in pixels
|
| + // of a font element whose size attribute is set to one plus
|
| + // returned size."
|
| + font.size = 1 + returnedSize;
|
| + var upperBound = parseInt(getComputedStyle(font).fontSize);
|
| + document.body.removeChild(font);
|
| +
|
| + // "Let average be the average of upper bound and lower bound."
|
| + var average = (upperBound + lowerBound)/2;
|
| +
|
| + // "If pixel size is less than average, return the one-element
|
| + // string consisting of the digit returned size."
|
| + if (pixelSize < average) {
|
| + return getLegacyFontSize.resultCache[size] = String(returnedSize);
|
| + }
|
| +
|
| + // "Add one to returned size."
|
| + returnedSize++;
|
| + }
|
| +
|
| + // "Return "7"."
|
| + return getLegacyFontSize.resultCache[size] = "7";
|
| +}
|
| +
|
| +//@}
|
| +///// The foreColor command /////
|
| +//@{
|
| +commands.forecolor = {
|
| + action: function(value) {
|
| + // Copy-pasted, same as backColor and hiliteColor
|
| +
|
| + // "If value is not a valid CSS color, prepend "#" to it."
|
| + //
|
| + // "If value is still not a valid CSS color, or if it is currentColor,
|
| + // return false."
|
| + //
|
| + // Cheap hack for testing, no attempt to be comprehensive.
|
| + if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
|
| + value = "#" + value;
|
| + }
|
| + if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
|
| + && !parseSimpleColor(value)
|
| + && value.toLowerCase() != "transparent") {
|
| + return false;
|
| + }
|
| +
|
| + // "Set the selection's value to value."
|
| + setSelectionValue("forecolor", value);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }, standardInlineValueCommand: true, relevantCssProperty: "color",
|
| + equivalentValues: function(val1, val2) {
|
| + // "Either both strings are valid CSS colors and have the same red,
|
| + // green, blue, and alpha components, or neither string is a valid CSS
|
| + // color."
|
| + return normalizeColor(val1) === normalizeColor(val2);
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The hiliteColor command /////
|
| +//@{
|
| +commands.hilitecolor = {
|
| + // Copy-pasted, same as backColor
|
| + action: function(value) {
|
| + // Action is further copy-pasted, same as foreColor
|
| +
|
| + // "If value is not a valid CSS color, prepend "#" to it."
|
| + //
|
| + // "If value is still not a valid CSS color, or if it is currentColor,
|
| + // return false."
|
| + //
|
| + // Cheap hack for testing, no attempt to be comprehensive.
|
| + if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
|
| + value = "#" + value;
|
| + }
|
| + if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
|
| + && !parseSimpleColor(value)
|
| + && value.toLowerCase() != "transparent") {
|
| + return false;
|
| + }
|
| +
|
| + // "Set the selection's value to value."
|
| + setSelectionValue("hilitecolor", value);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }, indeterm: function() {
|
| + // "True if among editable Text nodes that are effectively contained in
|
| + // the active range, there are two that have distinct effective command
|
| + // values. Otherwise false."
|
| + return getAllEffectivelyContainedNodes(getActiveRange(), function(node) {
|
| + return isEditable(node) && node.nodeType == Node.TEXT_NODE;
|
| + }).map(function(node) {
|
| + return getEffectiveCommandValue(node, "hilitecolor");
|
| + }).filter(function(value, i, arr) {
|
| + return arr.slice(0, i).indexOf(value) == -1;
|
| + }).length >= 2;
|
| + }, standardInlineValueCommand: true, relevantCssProperty: "backgroundColor",
|
| + equivalentValues: function(val1, val2) {
|
| + // "Either both strings are valid CSS colors and have the same red,
|
| + // green, blue, and alpha components, or neither string is a valid CSS
|
| + // color."
|
| + return normalizeColor(val1) === normalizeColor(val2);
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The italic command /////
|
| +//@{
|
| +commands.italic = {
|
| + action: function() {
|
| + // "If queryCommandState("italic") returns true, set the selection's
|
| + // value to "normal". Otherwise set the selection's value to "italic".
|
| + // Either way, return true."
|
| + if (myQueryCommandState("italic")) {
|
| + setSelectionValue("italic", "normal");
|
| + } else {
|
| + setSelectionValue("italic", "italic");
|
| + }
|
| + return true;
|
| + }, inlineCommandActivatedValues: ["italic", "oblique"],
|
| + relevantCssProperty: "fontStyle"
|
| +};
|
| +
|
| +//@}
|
| +///// The removeFormat command /////
|
| +//@{
|
| +commands.removeformat = {
|
| + action: function() {
|
| + // "A removeFormat candidate is an editable HTML element with local
|
| + // name "abbr", "acronym", "b", "bdi", "bdo", "big", "blink", "cite",
|
| + // "code", "dfn", "em", "font", "i", "ins", "kbd", "mark", "nobr", "q",
|
| + // "s", "samp", "small", "span", "strike", "strong", "sub", "sup",
|
| + // "tt", "u", or "var"."
|
| + function isRemoveFormatCandidate(node) {
|
| + return isEditable(node)
|
| + && isHtmlElement(node, ["abbr", "acronym", "b", "bdi", "bdo",
|
| + "big", "blink", "cite", "code", "dfn", "em", "font", "i",
|
| + "ins", "kbd", "mark", "nobr", "q", "s", "samp", "small",
|
| + "span", "strike", "strong", "sub", "sup", "tt", "u", "var"]);
|
| + }
|
| +
|
| + // "Let elements to remove be a list of every removeFormat candidate
|
| + // effectively contained in the active range."
|
| + var elementsToRemove = getAllEffectivelyContainedNodes(getActiveRange(), isRemoveFormatCandidate);
|
| +
|
| + // "For each element in elements to remove:"
|
| + elementsToRemove.forEach(function(element) {
|
| + // "While element has children, insert the first child of element
|
| + // into the parent of element immediately before element,
|
| + // preserving ranges."
|
| + while (element.hasChildNodes()) {
|
| + movePreservingRanges(element.firstChild, element.parentNode, getNodeIndex(element));
|
| + }
|
| +
|
| + // "Remove element from its parent."
|
| + element.parentNode.removeChild(element);
|
| + });
|
| +
|
| + // "If the active range's start node is an editable Text node, and its
|
| + // start offset is neither zero nor its start node's length, call
|
| + // splitText() on the active range's start node, with argument equal to
|
| + // the active range's start offset. Then set the active range's start
|
| + // node to the result, and its start offset to zero."
|
| + if (isEditable(getActiveRange().startContainer)
|
| + && getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
| + && getActiveRange().startOffset != 0
|
| + && getActiveRange().startOffset != getNodeLength(getActiveRange().startContainer)) {
|
| + // Account for browsers not following range mutation rules
|
| + if (getActiveRange().startContainer == getActiveRange().endContainer) {
|
| + var newEnd = getActiveRange().endOffset - getActiveRange().startOffset;
|
| + var newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
|
| + getActiveRange().setStart(newNode, 0);
|
| + getActiveRange().setEnd(newNode, newEnd);
|
| + } else {
|
| + getActiveRange().setStart(getActiveRange().startContainer.splitText(getActiveRange().startOffset), 0);
|
| + }
|
| + }
|
| +
|
| + // "If the active range's end node is an editable Text node, and its
|
| + // end offset is neither zero nor its end node's length, call
|
| + // splitText() on the active range's end node, with argument equal to
|
| + // the active range's end offset."
|
| + if (isEditable(getActiveRange().endContainer)
|
| + && getActiveRange().endContainer.nodeType == Node.TEXT_NODE
|
| + && getActiveRange().endOffset != 0
|
| + && getActiveRange().endOffset != getNodeLength(getActiveRange().endContainer)) {
|
| + // IE seems to mutate the range incorrectly here, so we need
|
| + // correction here as well. Have to be careful to set the range to
|
| + // something not including the text node so that getActiveRange()
|
| + // doesn't throw an exception due to a temporarily detached
|
| + // endpoint.
|
| + var newStart = [getActiveRange().startContainer, getActiveRange().startOffset];
|
| + var newEnd = [getActiveRange().endContainer, getActiveRange().endOffset];
|
| + getActiveRange().setEnd(document.documentElement, 0);
|
| + newEnd[0].splitText(newEnd[1]);
|
| + getActiveRange().setStart(newStart[0], newStart[1]);
|
| + getActiveRange().setEnd(newEnd[0], newEnd[1]);
|
| + }
|
| +
|
| + // "Let node list consist of all editable nodes effectively contained
|
| + // in the active range."
|
| + //
|
| + // "For each node in node list, while node's parent is a removeFormat
|
| + // candidate in the same editing host as node, split the parent of the
|
| + // one-node list consisting of node."
|
| + getAllEffectivelyContainedNodes(getActiveRange(), isEditable).forEach(function(node) {
|
| + while (isRemoveFormatCandidate(node.parentNode)
|
| + && inSameEditingHost(node.parentNode, node)) {
|
| + splitParent([node]);
|
| + }
|
| + });
|
| +
|
| + // "For each of the entries in the following list, in the given order,
|
| + // set the selection's value to null, with command as given."
|
| + [
|
| + "subscript",
|
| + "bold",
|
| + "fontname",
|
| + "fontsize",
|
| + "forecolor",
|
| + "hilitecolor",
|
| + "italic",
|
| + "strikethrough",
|
| + "underline",
|
| + ].forEach(function(command) {
|
| + setSelectionValue(command, null);
|
| + });
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The strikethrough command /////
|
| +//@{
|
| +commands.strikethrough = {
|
| + action: function() {
|
| + // "If queryCommandState("strikethrough") returns true, set the
|
| + // selection's value to null. Otherwise set the selection's value to
|
| + // "line-through". Either way, return true."
|
| + if (myQueryCommandState("strikethrough")) {
|
| + setSelectionValue("strikethrough", null);
|
| + } else {
|
| + setSelectionValue("strikethrough", "line-through");
|
| + }
|
| + return true;
|
| + }, inlineCommandActivatedValues: ["line-through"]
|
| +};
|
| +
|
| +//@}
|
| +///// The subscript command /////
|
| +//@{
|
| +commands.subscript = {
|
| + action: function() {
|
| + // "Call queryCommandState("subscript"), and let state be the result."
|
| + var state = myQueryCommandState("subscript");
|
| +
|
| + // "Set the selection's value to null."
|
| + setSelectionValue("subscript", null);
|
| +
|
| + // "If state is false, set the selection's value to "subscript"."
|
| + if (!state) {
|
| + setSelectionValue("subscript", "subscript");
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }, indeterm: function() {
|
| + // "True if either among formattable nodes that are effectively
|
| + // contained in the active range, there is at least one with effective
|
| + // command value "subscript" and at least one with some other effective
|
| + // command value; or if there is some formattable node effectively
|
| + // contained in the active range with effective command value "mixed".
|
| + // Otherwise false."
|
| + var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
|
| + return (nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") == "subscript" })
|
| + && nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") != "subscript" }))
|
| + || nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") == "mixed" });
|
| + }, inlineCommandActivatedValues: ["subscript"],
|
| +};
|
| +
|
| +//@}
|
| +///// The superscript command /////
|
| +//@{
|
| +commands.superscript = {
|
| + action: function() {
|
| + // "Call queryCommandState("superscript"), and let state be the
|
| + // result."
|
| + var state = myQueryCommandState("superscript");
|
| +
|
| + // "Set the selection's value to null."
|
| + setSelectionValue("superscript", null);
|
| +
|
| + // "If state is false, set the selection's value to "superscript"."
|
| + if (!state) {
|
| + setSelectionValue("superscript", "superscript");
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }, indeterm: function() {
|
| + // "True if either among formattable nodes that are effectively
|
| + // contained in the active range, there is at least one with effective
|
| + // command value "superscript" and at least one with some other
|
| + // effective command value; or if there is some formattable node
|
| + // effectively contained in the active range with effective command
|
| + // value "mixed". Otherwise false."
|
| + var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
|
| + return (nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") == "superscript" })
|
| + && nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") != "superscript" }))
|
| + || nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") == "mixed" });
|
| + }, inlineCommandActivatedValues: ["superscript"],
|
| +};
|
| +
|
| +//@}
|
| +///// The underline command /////
|
| +//@{
|
| +commands.underline = {
|
| + action: function() {
|
| + // "If queryCommandState("underline") returns true, set the selection's
|
| + // value to null. Otherwise set the selection's value to "underline".
|
| + // Either way, return true."
|
| + if (myQueryCommandState("underline")) {
|
| + setSelectionValue("underline", null);
|
| + } else {
|
| + setSelectionValue("underline", "underline");
|
| + }
|
| + return true;
|
| + }, inlineCommandActivatedValues: ["underline"]
|
| +};
|
| +
|
| +//@}
|
| +///// The unlink command /////
|
| +//@{
|
| +commands.unlink = {
|
| + action: function() {
|
| + // "Let hyperlinks be a list of every a element that has an href
|
| + // attribute and is contained in the active range or is an ancestor of
|
| + // one of its boundary points."
|
| + //
|
| + // As usual, take care to ensure it's tree order. The correctness of
|
| + // the following is left as an exercise for the reader.
|
| + var range = getActiveRange();
|
| + var hyperlinks = [];
|
| + for (
|
| + var node = range.startContainer;
|
| + node;
|
| + node = node.parentNode
|
| + ) {
|
| + if (isHtmlElement(node, "A")
|
| + && node.hasAttribute("href")) {
|
| + hyperlinks.unshift(node);
|
| + }
|
| + }
|
| + for (
|
| + var node = range.startContainer;
|
| + node != nextNodeDescendants(range.endContainer);
|
| + node = nextNode(node)
|
| + ) {
|
| + if (isHtmlElement(node, "A")
|
| + && node.hasAttribute("href")
|
| + && (isContained(node, range)
|
| + || isAncestor(node, range.endContainer)
|
| + || node == range.endContainer)) {
|
| + hyperlinks.push(node);
|
| + }
|
| + }
|
| +
|
| + // "Clear the value of each member of hyperlinks."
|
| + for (var i = 0; i < hyperlinks.length; i++) {
|
| + clearValue(hyperlinks[i], "unlink");
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +
|
| +/////////////////////////////////////
|
| +///// Block formatting commands /////
|
| +/////////////////////////////////////
|
| +
|
| +///// Block formatting command definitions /////
|
| +//@{
|
| +
|
| +// "An indentation element is either a blockquote, or a div that has a style
|
| +// attribute that sets "margin" or some subproperty of it."
|
| +function isIndentationElement(node) {
|
| + if (!isHtmlElement(node)) {
|
| + return false;
|
| + }
|
| +
|
| + if (node.tagName == "BLOCKQUOTE") {
|
| + return true;
|
| + }
|
| +
|
| + if (node.tagName != "DIV") {
|
| + return false;
|
| + }
|
| +
|
| + for (var i = 0; i < node.style.length; i++) {
|
| + // Approximate check
|
| + if (/^(-[a-z]+-)?margin/.test(node.style[i])) {
|
| + return true;
|
| + }
|
| + }
|
| +
|
| + return false;
|
| +}
|
| +
|
| +// "A simple indentation element is an indentation element that has no
|
| +// attributes except possibly
|
| +//
|
| +// * "a style attribute that sets no properties other than "margin",
|
| +// "border", "padding", or subproperties of those; and/or
|
| +// * "a dir attribute."
|
| +function isSimpleIndentationElement(node) {
|
| + if (!isIndentationElement(node)) {
|
| + return false;
|
| + }
|
| +
|
| + for (var i = 0; i < node.attributes.length; i++) {
|
| + if (!isHtmlNamespace(node.attributes[i].namespaceURI)
|
| + || ["style", "dir"].indexOf(node.attributes[i].name) == -1) {
|
| + return false;
|
| + }
|
| + }
|
| +
|
| + for (var i = 0; i < node.style.length; i++) {
|
| + // This is approximate, but it works well enough for my purposes.
|
| + if (!/^(-[a-z]+-)?(margin|border|padding)/.test(node.style[i])) {
|
| + return false;
|
| + }
|
| + }
|
| +
|
| + return true;
|
| +}
|
| +
|
| +// "A non-list single-line container is an HTML element with local name
|
| +// "address", "div", "h1", "h2", "h3", "h4", "h5", "h6", "listing", "p", "pre",
|
| +// or "xmp"."
|
| +function isNonListSingleLineContainer(node) {
|
| + return isHtmlElement(node, ["address", "div", "h1", "h2", "h3", "h4", "h5",
|
| + "h6", "listing", "p", "pre", "xmp"]);
|
| +}
|
| +
|
| +// "A single-line container is either a non-list single-line container, or an
|
| +// HTML element with local name "li", "dt", or "dd"."
|
| +function isSingleLineContainer(node) {
|
| + return isNonListSingleLineContainer(node)
|
| + || isHtmlElement(node, ["li", "dt", "dd"]);
|
| +}
|
| +
|
| +function getBlockNodeOf(node) {
|
| + // "While node is an inline node, set node to its parent."
|
| + while (isInlineNode(node)) {
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "Return node."
|
| + return node;
|
| +}
|
| +
|
| +//@}
|
| +///// Assorted block formatting command algorithms /////
|
| +//@{
|
| +
|
| +function fixDisallowedAncestors(node) {
|
| + // "If node is not editable, abort these steps."
|
| + if (!isEditable(node)) {
|
| + return;
|
| + }
|
| +
|
| + // "If node is not an allowed child of any of its ancestors in the same
|
| + // editing host:"
|
| + if (getAncestors(node).every(function(ancestor) {
|
| + return !inSameEditingHost(node, ancestor)
|
| + || !isAllowedChild(node, ancestor)
|
| + })) {
|
| + // "If node is a dd or dt, wrap the one-node list consisting of node,
|
| + // with sibling criteria returning true for any dl with no attributes
|
| + // and false otherwise, and new parent instructions returning the
|
| + // result of calling createElement("dl") on the context object. Then
|
| + // abort these steps."
|
| + if (isHtmlElement(node, ["dd", "dt"])) {
|
| + wrap([node],
|
| + function(sibling) { return isHtmlElement(sibling, "dl") && !sibling.attributes.length },
|
| + function() { return document.createElement("dl") });
|
| + return;
|
| + }
|
| +
|
| + // "If "p" is not an allowed child of the editing host of node, abort
|
| + // these steps."
|
| + if (!isAllowedChild("p", getEditingHostOf(node))) {
|
| + return;
|
| + }
|
| +
|
| + // "If node is not a prohibited paragraph child, abort these steps."
|
| + if (!isProhibitedParagraphChild(node)) {
|
| + return;
|
| + }
|
| +
|
| + // "Set the tag name of node to the default single-line container name,
|
| + // and let node be the result."
|
| + node = setTagName(node, defaultSingleLineContainerName);
|
| +
|
| + // "Fix disallowed ancestors of node."
|
| + fixDisallowedAncestors(node);
|
| +
|
| + // "Let children be node's children."
|
| + var children = [].slice.call(node.childNodes);
|
| +
|
| + // "For each child in children, if child is a prohibited paragraph
|
| + // child:"
|
| + children.filter(isProhibitedParagraphChild)
|
| + .forEach(function(child) {
|
| + // "Record the values of the one-node list consisting of child, and
|
| + // let values be the result."
|
| + var values = recordValues([child]);
|
| +
|
| + // "Split the parent of the one-node list consisting of child."
|
| + splitParent([child]);
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| + });
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "Record the values of the one-node list consisting of node, and let
|
| + // values be the result."
|
| + var values = recordValues([node]);
|
| +
|
| + // "While node is not an allowed child of its parent, split the parent of
|
| + // the one-node list consisting of node."
|
| + while (!isAllowedChild(node, node.parentNode)) {
|
| + splitParent([node]);
|
| + }
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| +}
|
| +
|
| +function normalizeSublists(item) {
|
| + // "If item is not an li or it is not editable or its parent is not
|
| + // editable, abort these steps."
|
| + if (!isHtmlElement(item, "LI")
|
| + || !isEditable(item)
|
| + || !isEditable(item.parentNode)) {
|
| + return;
|
| + }
|
| +
|
| + // "Let new item be null."
|
| + var newItem = null;
|
| +
|
| + // "While item has an ol or ul child:"
|
| + while ([].some.call(item.childNodes, function (node) { return isHtmlElement(node, ["OL", "UL"]) })) {
|
| + // "Let child be the last child of item."
|
| + var child = item.lastChild;
|
| +
|
| + // "If child is an ol or ul, or new item is null and child is a Text
|
| + // node whose data consists of zero of more space characters:"
|
| + if (isHtmlElement(child, ["OL", "UL"])
|
| + || (!newItem && child.nodeType == Node.TEXT_NODE && /^[ \t\n\f\r]*$/.test(child.data))) {
|
| + // "Set new item to null."
|
| + newItem = null;
|
| +
|
| + // "Insert child into the parent of item immediately following
|
| + // item, preserving ranges."
|
| + movePreservingRanges(child, item.parentNode, 1 + getNodeIndex(item));
|
| +
|
| + // "Otherwise:"
|
| + } else {
|
| + // "If new item is null, let new item be the result of calling
|
| + // createElement("li") on the ownerDocument of item, then insert
|
| + // new item into the parent of item immediately after item."
|
| + if (!newItem) {
|
| + newItem = item.ownerDocument.createElement("li");
|
| + item.parentNode.insertBefore(newItem, item.nextSibling);
|
| + }
|
| +
|
| + // "Insert child into new item as its first child, preserving
|
| + // ranges."
|
| + movePreservingRanges(child, newItem, 0);
|
| + }
|
| + }
|
| +}
|
| +
|
| +function getSelectionListState() {
|
| + // "If the active range is null, return "none"."
|
| + if (!getActiveRange()) {
|
| + return "none";
|
| + }
|
| +
|
| + // "Block-extend the active range, and let new range be the result."
|
| + var newRange = blockExtend(getActiveRange());
|
| +
|
| + // "Let node list be a list of nodes, initially empty."
|
| + //
|
| + // "For each node contained in new range, append node to node list if the
|
| + // last member of node list (if any) is not an ancestor of node; node is
|
| + // editable; node is not an indentation element; and node is either an ol
|
| + // or ul, or the child of an ol or ul, or an allowed child of "li"."
|
| + var nodeList = getContainedNodes(newRange, function(node) {
|
| + return isEditable(node)
|
| + && !isIndentationElement(node)
|
| + && (isHtmlElement(node, ["ol", "ul"])
|
| + || isHtmlElement(node.parentNode, ["ol", "ul"])
|
| + || isAllowedChild(node, "li"));
|
| + });
|
| +
|
| + // "If node list is empty, return "none"."
|
| + if (!nodeList.length) {
|
| + return "none";
|
| + }
|
| +
|
| + // "If every member of node list is either an ol or the child of an ol or
|
| + // the child of an li child of an ol, and none is a ul or an ancestor of a
|
| + // ul, return "ol"."
|
| + if (nodeList.every(function(node) {
|
| + return isHtmlElement(node, "ol")
|
| + || isHtmlElement(node.parentNode, "ol")
|
| + || (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ol"));
|
| + })
|
| + && !nodeList.some(function(node) { return isHtmlElement(node, "ul") || ("querySelector" in node && node.querySelector("ul")) })) {
|
| + return "ol";
|
| + }
|
| +
|
| + // "If every member of node list is either a ul or the child of a ul or the
|
| + // child of an li child of a ul, and none is an ol or an ancestor of an ol,
|
| + // return "ul"."
|
| + if (nodeList.every(function(node) {
|
| + return isHtmlElement(node, "ul")
|
| + || isHtmlElement(node.parentNode, "ul")
|
| + || (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ul"));
|
| + })
|
| + && !nodeList.some(function(node) { return isHtmlElement(node, "ol") || ("querySelector" in node && node.querySelector("ol")) })) {
|
| + return "ul";
|
| + }
|
| +
|
| + var hasOl = nodeList.some(function(node) {
|
| + return isHtmlElement(node, "ol")
|
| + || isHtmlElement(node.parentNode, "ol")
|
| + || ("querySelector" in node && node.querySelector("ol"))
|
| + || (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ol"));
|
| + });
|
| + var hasUl = nodeList.some(function(node) {
|
| + return isHtmlElement(node, "ul")
|
| + || isHtmlElement(node.parentNode, "ul")
|
| + || ("querySelector" in node && node.querySelector("ul"))
|
| + || (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ul"));
|
| + });
|
| + // "If some member of node list is either an ol or the child or ancestor of
|
| + // an ol or the child of an li child of an ol, and some member of node list
|
| + // is either a ul or the child or ancestor of a ul or the child of an li
|
| + // child of a ul, return "mixed"."
|
| + if (hasOl && hasUl) {
|
| + return "mixed";
|
| + }
|
| +
|
| + // "If some member of node list is either an ol or the child or ancestor of
|
| + // an ol or the child of an li child of an ol, return "mixed ol"."
|
| + if (hasOl) {
|
| + return "mixed ol";
|
| + }
|
| +
|
| + // "If some member of node list is either a ul or the child or ancestor of
|
| + // a ul or the child of an li child of a ul, return "mixed ul"."
|
| + if (hasUl) {
|
| + return "mixed ul";
|
| + }
|
| +
|
| + // "Return "none"."
|
| + return "none";
|
| +}
|
| +
|
| +function getAlignmentValue(node) {
|
| + // "While node is neither null nor an Element, or it is an Element but its
|
| + // "display" property has resolved value "inline" or "none", set node to
|
| + // its parent."
|
| + while ((node && node.nodeType != Node.ELEMENT_NODE)
|
| + || (node.nodeType == Node.ELEMENT_NODE
|
| + && ["inline", "none"].indexOf(getComputedStyle(node).display) != -1)) {
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "If node is not an Element, return "left"."
|
| + if (!node || node.nodeType != Node.ELEMENT_NODE) {
|
| + return "left";
|
| + }
|
| +
|
| + var resolvedValue = getComputedStyle(node).textAlign
|
| + // Hack around browser non-standardness
|
| + .replace(/^-(moz|webkit)-/, "")
|
| + .replace(/^auto$/, "start");
|
| +
|
| + // "If node's "text-align" property has resolved value "start", return
|
| + // "left" if the directionality of node is "ltr", "right" if it is "rtl"."
|
| + if (resolvedValue == "start") {
|
| + return getDirectionality(node) == "ltr" ? "left" : "right";
|
| + }
|
| +
|
| + // "If node's "text-align" property has resolved value "end", return
|
| + // "right" if the directionality of node is "ltr", "left" if it is "rtl"."
|
| + if (resolvedValue == "end") {
|
| + return getDirectionality(node) == "ltr" ? "right" : "left";
|
| + }
|
| +
|
| + // "If node's "text-align" property has resolved value "center", "justify",
|
| + // "left", or "right", return that value."
|
| + if (["center", "justify", "left", "right"].indexOf(resolvedValue) != -1) {
|
| + return resolvedValue;
|
| + }
|
| +
|
| + // "Return "left"."
|
| + return "left";
|
| +}
|
| +
|
| +function getNextEquivalentPoint(node, offset) {
|
| + // "If node's length is zero, return null."
|
| + if (getNodeLength(node) == 0) {
|
| + return null;
|
| + }
|
| +
|
| + // "If offset is node's length, and node's parent is not null, and node is
|
| + // an inline node, return (node's parent, 1 + node's index)."
|
| + if (offset == getNodeLength(node)
|
| + && node.parentNode
|
| + && isInlineNode(node)) {
|
| + return [node.parentNode, 1 + getNodeIndex(node)];
|
| + }
|
| +
|
| + // "If node has a child with index offset, and that child's length is not
|
| + // zero, and that child is an inline node, return (that child, 0)."
|
| + if (0 <= offset
|
| + && offset < node.childNodes.length
|
| + && getNodeLength(node.childNodes[offset]) != 0
|
| + && isInlineNode(node.childNodes[offset])) {
|
| + return [node.childNodes[offset], 0];
|
| + }
|
| +
|
| + // "Return null."
|
| + return null;
|
| +}
|
| +
|
| +function getPreviousEquivalentPoint(node, offset) {
|
| + // "If node's length is zero, return null."
|
| + if (getNodeLength(node) == 0) {
|
| + return null;
|
| + }
|
| +
|
| + // "If offset is 0, and node's parent is not null, and node is an inline
|
| + // node, return (node's parent, node's index)."
|
| + if (offset == 0
|
| + && node.parentNode
|
| + && isInlineNode(node)) {
|
| + return [node.parentNode, getNodeIndex(node)];
|
| + }
|
| +
|
| + // "If node has a child with index offset − 1, and that child's length is
|
| + // not zero, and that child is an inline node, return (that child, that
|
| + // child's length)."
|
| + if (0 <= offset - 1
|
| + && offset - 1 < node.childNodes.length
|
| + && getNodeLength(node.childNodes[offset - 1]) != 0
|
| + && isInlineNode(node.childNodes[offset - 1])) {
|
| + return [node.childNodes[offset - 1], getNodeLength(node.childNodes[offset - 1])];
|
| + }
|
| +
|
| + // "Return null."
|
| + return null;
|
| +}
|
| +
|
| +function getFirstEquivalentPoint(node, offset) {
|
| + // "While (node, offset)'s previous equivalent point is not null, set
|
| + // (node, offset) to its previous equivalent point."
|
| + var prev;
|
| + while (prev = getPreviousEquivalentPoint(node, offset)) {
|
| + node = prev[0];
|
| + offset = prev[1];
|
| + }
|
| +
|
| + // "Return (node, offset)."
|
| + return [node, offset];
|
| +}
|
| +
|
| +function getLastEquivalentPoint(node, offset) {
|
| + // "While (node, offset)'s next equivalent point is not null, set (node,
|
| + // offset) to its next equivalent point."
|
| + var next;
|
| + while (next = getNextEquivalentPoint(node, offset)) {
|
| + node = next[0];
|
| + offset = next[1];
|
| + }
|
| +
|
| + // "Return (node, offset)."
|
| + return [node, offset];
|
| +}
|
| +
|
| +//@}
|
| +///// Block-extending a range /////
|
| +//@{
|
| +
|
| +// "A boundary point (node, offset) is a block start point if either node's
|
| +// parent is null and offset is zero; or node has a child with index offset −
|
| +// 1, and that child is either a visible block node or a visible br."
|
| +function isBlockStartPoint(node, offset) {
|
| + return (!node.parentNode && offset == 0)
|
| + || (0 <= offset - 1
|
| + && offset - 1 < node.childNodes.length
|
| + && isVisible(node.childNodes[offset - 1])
|
| + && (isBlockNode(node.childNodes[offset - 1])
|
| + || isHtmlElement(node.childNodes[offset - 1], "br")));
|
| +}
|
| +
|
| +// "A boundary point (node, offset) is a block end point if either node's
|
| +// parent is null and offset is node's length; or node has a child with index
|
| +// offset, and that child is a visible block node."
|
| +function isBlockEndPoint(node, offset) {
|
| + return (!node.parentNode && offset == getNodeLength(node))
|
| + || (offset < node.childNodes.length
|
| + && isVisible(node.childNodes[offset])
|
| + && isBlockNode(node.childNodes[offset]));
|
| +}
|
| +
|
| +// "A boundary point is a block boundary point if it is either a block start
|
| +// point or a block end point."
|
| +function isBlockBoundaryPoint(node, offset) {
|
| + return isBlockStartPoint(node, offset)
|
| + || isBlockEndPoint(node, offset);
|
| +}
|
| +
|
| +function blockExtend(range) {
|
| + // "Let start node, start offset, end node, and end offset be the start
|
| + // and end nodes and offsets of the range."
|
| + var startNode = range.startContainer;
|
| + var startOffset = range.startOffset;
|
| + var endNode = range.endContainer;
|
| + var endOffset = range.endOffset;
|
| +
|
| + // "If some ancestor container of start node is an li, set start offset to
|
| + // the index of the last such li in tree order, and set start node to that
|
| + // li's parent."
|
| + var liAncestors = getAncestors(startNode).concat(startNode)
|
| + .filter(function(ancestor) { return isHtmlElement(ancestor, "li") })
|
| + .slice(-1);
|
| + if (liAncestors.length) {
|
| + startOffset = getNodeIndex(liAncestors[0]);
|
| + startNode = liAncestors[0].parentNode;
|
| + }
|
| +
|
| + // "If (start node, start offset) is not a block start point, repeat the
|
| + // following steps:"
|
| + if (!isBlockStartPoint(startNode, startOffset)) do {
|
| + // "If start offset is zero, set it to start node's index, then set
|
| + // start node to its parent."
|
| + if (startOffset == 0) {
|
| + startOffset = getNodeIndex(startNode);
|
| + startNode = startNode.parentNode;
|
| +
|
| + // "Otherwise, subtract one from start offset."
|
| + } else {
|
| + startOffset--;
|
| + }
|
| +
|
| + // "If (start node, start offset) is a block boundary point, break from
|
| + // this loop."
|
| + } while (!isBlockBoundaryPoint(startNode, startOffset));
|
| +
|
| + // "While start offset is zero and start node's parent is not null, set
|
| + // start offset to start node's index, then set start node to its parent."
|
| + while (startOffset == 0
|
| + && startNode.parentNode) {
|
| + startOffset = getNodeIndex(startNode);
|
| + startNode = startNode.parentNode;
|
| + }
|
| +
|
| + // "If some ancestor container of end node is an li, set end offset to one
|
| + // plus the index of the last such li in tree order, and set end node to
|
| + // that li's parent."
|
| + var liAncestors = getAncestors(endNode).concat(endNode)
|
| + .filter(function(ancestor) { return isHtmlElement(ancestor, "li") })
|
| + .slice(-1);
|
| + if (liAncestors.length) {
|
| + endOffset = 1 + getNodeIndex(liAncestors[0]);
|
| + endNode = liAncestors[0].parentNode;
|
| + }
|
| +
|
| + // "If (end node, end offset) is not a block end point, repeat the
|
| + // following steps:"
|
| + if (!isBlockEndPoint(endNode, endOffset)) do {
|
| + // "If end offset is end node's length, set it to one plus end node's
|
| + // index, then set end node to its parent."
|
| + if (endOffset == getNodeLength(endNode)) {
|
| + endOffset = 1 + getNodeIndex(endNode);
|
| + endNode = endNode.parentNode;
|
| +
|
| + // "Otherwise, add one to end offset.
|
| + } else {
|
| + endOffset++;
|
| + }
|
| +
|
| + // "If (end node, end offset) is a block boundary point, break from
|
| + // this loop."
|
| + } while (!isBlockBoundaryPoint(endNode, endOffset));
|
| +
|
| + // "While end offset is end node's length and end node's parent is not
|
| + // null, set end offset to one plus end node's index, then set end node to
|
| + // its parent."
|
| + while (endOffset == getNodeLength(endNode)
|
| + && endNode.parentNode) {
|
| + endOffset = 1 + getNodeIndex(endNode);
|
| + endNode = endNode.parentNode;
|
| + }
|
| +
|
| + // "Let new range be a new range whose start and end nodes and offsets
|
| + // are start node, start offset, end node, and end offset."
|
| + var newRange = startNode.ownerDocument.createRange();
|
| + newRange.setStart(startNode, startOffset);
|
| + newRange.setEnd(endNode, endOffset);
|
| +
|
| + // "Return new range."
|
| + return newRange;
|
| +}
|
| +
|
| +function followsLineBreak(node) {
|
| + // "Let offset be zero."
|
| + var offset = 0;
|
| +
|
| + // "While (node, offset) is not a block boundary point:"
|
| + while (!isBlockBoundaryPoint(node, offset)) {
|
| + // "If node has a visible child with index offset minus one, return
|
| + // false."
|
| + if (0 <= offset - 1
|
| + && offset - 1 < node.childNodes.length
|
| + && isVisible(node.childNodes[offset - 1])) {
|
| + return false;
|
| + }
|
| +
|
| + // "If offset is zero or node has no children, set offset to node's
|
| + // index, then set node to its parent."
|
| + if (offset == 0
|
| + || !node.hasChildNodes()) {
|
| + offset = getNodeIndex(node);
|
| + node = node.parentNode;
|
| +
|
| + // "Otherwise, set node to its child with index offset minus one, then
|
| + // set offset to node's length."
|
| + } else {
|
| + node = node.childNodes[offset - 1];
|
| + offset = getNodeLength(node);
|
| + }
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| +}
|
| +
|
| +function precedesLineBreak(node) {
|
| + // "Let offset be node's length."
|
| + var offset = getNodeLength(node);
|
| +
|
| + // "While (node, offset) is not a block boundary point:"
|
| + while (!isBlockBoundaryPoint(node, offset)) {
|
| + // "If node has a visible child with index offset, return false."
|
| + if (offset < node.childNodes.length
|
| + && isVisible(node.childNodes[offset])) {
|
| + return false;
|
| + }
|
| +
|
| + // "If offset is node's length or node has no children, set offset to
|
| + // one plus node's index, then set node to its parent."
|
| + if (offset == getNodeLength(node)
|
| + || !node.hasChildNodes()) {
|
| + offset = 1 + getNodeIndex(node);
|
| + node = node.parentNode;
|
| +
|
| + // "Otherwise, set node to its child with index offset and set offset
|
| + // to zero."
|
| + } else {
|
| + node = node.childNodes[offset];
|
| + offset = 0;
|
| + }
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| +}
|
| +
|
| +//@}
|
| +///// Recording and restoring overrides /////
|
| +//@{
|
| +
|
| +function recordCurrentOverrides() {
|
| + // "Let overrides be a list of (string, string or boolean) ordered pairs,
|
| + // initially empty."
|
| + var overrides = [];
|
| +
|
| + // "If there is a value override for "createLink", add ("createLink", value
|
| + // override for "createLink") to overrides."
|
| + if (getValueOverride("createlink") !== undefined) {
|
| + overrides.push(["createlink", getValueOverride("createlink")]);
|
| + }
|
| +
|
| + // "For each command in the list "bold", "italic", "strikethrough",
|
| + // "subscript", "superscript", "underline", in order: if there is a state
|
| + // override for command, add (command, command's state override) to
|
| + // overrides."
|
| + ["bold", "italic", "strikethrough", "subscript", "superscript",
|
| + "underline"].forEach(function(command) {
|
| + if (getStateOverride(command) !== undefined) {
|
| + overrides.push([command, getStateOverride(command)]);
|
| + }
|
| + });
|
| +
|
| + // "For each command in the list "fontName", "fontSize", "foreColor",
|
| + // "hiliteColor", in order: if there is a value override for command, add
|
| + // (command, command's value override) to overrides."
|
| + ["fontname", "fontsize", "forecolor",
|
| + "hilitecolor"].forEach(function(command) {
|
| + if (getValueOverride(command) !== undefined) {
|
| + overrides.push([command, getValueOverride(command)]);
|
| + }
|
| + });
|
| +
|
| + // "Return overrides."
|
| + return overrides;
|
| +}
|
| +
|
| +function recordCurrentStatesAndValues() {
|
| + // "Let overrides be a list of (string, string or boolean) ordered pairs,
|
| + // initially empty."
|
| + var overrides = [];
|
| +
|
| + // "Let node be the first formattable node effectively contained in the
|
| + // active range, or null if there is none."
|
| + var node = getAllEffectivelyContainedNodes(getActiveRange())
|
| + .filter(isFormattableNode)[0];
|
| +
|
| + // "If node is null, return overrides."
|
| + if (!node) {
|
| + return overrides;
|
| + }
|
| +
|
| + // "Add ("createLink", node's effective command value for "createLink") to
|
| + // overrides."
|
| + overrides.push(["createlink", getEffectiveCommandValue(node, "createlink")]);
|
| +
|
| + // "For each command in the list "bold", "italic", "strikethrough",
|
| + // "subscript", "superscript", "underline", in order: if node's effective
|
| + // command value for command is one of its inline command activated values,
|
| + // add (command, true) to overrides, and otherwise add (command, false) to
|
| + // overrides."
|
| + ["bold", "italic", "strikethrough", "subscript", "superscript",
|
| + "underline"].forEach(function(command) {
|
| + if (commands[command].inlineCommandActivatedValues
|
| + .indexOf(getEffectiveCommandValue(node, command)) != -1) {
|
| + overrides.push([command, true]);
|
| + } else {
|
| + overrides.push([command, false]);
|
| + }
|
| + });
|
| +
|
| + // "For each command in the list "fontName", "foreColor", "hiliteColor", in
|
| + // order: add (command, command's value) to overrides."
|
| + ["fontname", "fontsize", "forecolor", "hilitecolor"].forEach(function(command) {
|
| + overrides.push([command, commands[command].value()]);
|
| + });
|
| +
|
| + // "Add ("fontSize", node's effective command value for "fontSize") to
|
| + // overrides."
|
| + overrides.push(["fontsize", getEffectiveCommandValue(node, "fontsize")]);
|
| +
|
| + // "Return overrides."
|
| + return overrides;
|
| +}
|
| +
|
| +function restoreStatesAndValues(overrides) {
|
| + // "Let node be the first formattable node effectively contained in the
|
| + // active range, or null if there is none."
|
| + var node = getAllEffectivelyContainedNodes(getActiveRange())
|
| + .filter(isFormattableNode)[0];
|
| +
|
| + // "If node is not null, then for each (command, override) pair in
|
| + // overrides, in order:"
|
| + if (node) {
|
| + for (var i = 0; i < overrides.length; i++) {
|
| + var command = overrides[i][0];
|
| + var override = overrides[i][1];
|
| +
|
| + // "If override is a boolean, and queryCommandState(command)
|
| + // returns something different from override, take the action for
|
| + // command, with value equal to the empty string."
|
| + if (typeof override == "boolean"
|
| + && myQueryCommandState(command) != override) {
|
| + commands[command].action("");
|
| +
|
| + // "Otherwise, if override is a string, and command is neither
|
| + // "createLink" nor "fontSize", and queryCommandValue(command)
|
| + // returns something not equivalent to override, take the action
|
| + // for command, with value equal to override."
|
| + } else if (typeof override == "string"
|
| + && command != "createlink"
|
| + && command != "fontsize"
|
| + && !areEquivalentValues(command, myQueryCommandValue(command), override)) {
|
| + commands[command].action(override);
|
| +
|
| + // "Otherwise, if override is a string; and command is
|
| + // "createLink"; and either there is a value override for
|
| + // "createLink" that is not equal to override, or there is no value
|
| + // override for "createLink" and node's effective command value for
|
| + // "createLink" is not equal to override: take the action for
|
| + // "createLink", with value equal to override."
|
| + } else if (typeof override == "string"
|
| + && command == "createlink"
|
| + && (
|
| + (
|
| + getValueOverride("createlink") !== undefined
|
| + && getValueOverride("createlink") !== override
|
| + ) || (
|
| + getValueOverride("createlink") === undefined
|
| + && getEffectiveCommandValue(node, "createlink") !== override
|
| + )
|
| + )) {
|
| + commands.createlink.action(override);
|
| +
|
| + // "Otherwise, if override is a string; and command is "fontSize";
|
| + // and either there is a value override for "fontSize" that is not
|
| + // equal to override, or there is no value override for "fontSize"
|
| + // and node's effective command value for "fontSize" is not loosely
|
| + // equivalent to override:"
|
| + } else if (typeof override == "string"
|
| + && command == "fontsize"
|
| + && (
|
| + (
|
| + getValueOverride("fontsize") !== undefined
|
| + && getValueOverride("fontsize") !== override
|
| + ) || (
|
| + getValueOverride("fontsize") === undefined
|
| + && !areLooselyEquivalentValues(command, getEffectiveCommandValue(node, "fontsize"), override)
|
| + )
|
| + )) {
|
| + // "Convert override to an integer number of pixels, and set
|
| + // override to the legacy font size for the result."
|
| + override = getLegacyFontSize(override);
|
| +
|
| + // "Take the action for "fontSize", with value equal to
|
| + // override."
|
| + commands.fontsize.action(override);
|
| +
|
| + // "Otherwise, continue this loop from the beginning."
|
| + } else {
|
| + continue;
|
| + }
|
| +
|
| + // "Set node to the first formattable node effectively contained in
|
| + // the active range, if there is one."
|
| + node = getAllEffectivelyContainedNodes(getActiveRange())
|
| + .filter(isFormattableNode)[0]
|
| + || node;
|
| + }
|
| +
|
| + // "Otherwise, for each (command, override) pair in overrides, in order:"
|
| + } else {
|
| + for (var i = 0; i < overrides.length; i++) {
|
| + var command = overrides[i][0];
|
| + var override = overrides[i][1];
|
| +
|
| + // "If override is a boolean, set the state override for command to
|
| + // override."
|
| + if (typeof override == "boolean") {
|
| + setStateOverride(command, override);
|
| + }
|
| +
|
| + // "If override is a string, set the value override for command to
|
| + // override."
|
| + if (typeof override == "string") {
|
| + setValueOverride(command, override);
|
| + }
|
| + }
|
| + }
|
| +}
|
| +
|
| +//@}
|
| +///// Deleting the selection /////
|
| +//@{
|
| +
|
| +// The flags argument is a dictionary that can have blockMerging,
|
| +// stripWrappers, and/or direction as keys.
|
| +function deleteSelection(flags) {
|
| + if (flags === undefined) {
|
| + flags = {};
|
| + }
|
| +
|
| + var blockMerging = "blockMerging" in flags ? Boolean(flags.blockMerging) : true;
|
| + var stripWrappers = "stripWrappers" in flags ? Boolean(flags.stripWrappers) : true;
|
| + var direction = "direction" in flags ? flags.direction : "forward";
|
| +
|
| + // "If the active range is null, abort these steps and do nothing."
|
| + if (!getActiveRange()) {
|
| + return;
|
| + }
|
| +
|
| + // "Canonicalize whitespace at the active range's start."
|
| + canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
|
| +
|
| + // "Canonicalize whitespace at the active range's end."
|
| + canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset);
|
| +
|
| + // "Let (start node, start offset) be the last equivalent point for the
|
| + // active range's start."
|
| + var start = getLastEquivalentPoint(getActiveRange().startContainer, getActiveRange().startOffset);
|
| + var startNode = start[0];
|
| + var startOffset = start[1];
|
| +
|
| + // "Let (end node, end offset) be the first equivalent point for the active
|
| + // range's end."
|
| + var end = getFirstEquivalentPoint(getActiveRange().endContainer, getActiveRange().endOffset);
|
| + var endNode = end[0];
|
| + var endOffset = end[1];
|
| +
|
| + // "If (end node, end offset) is not after (start node, start offset):"
|
| + if (getPosition(endNode, endOffset, startNode, startOffset) !== "after") {
|
| + // "If direction is "forward", call collapseToStart() on the context
|
| + // object's Selection."
|
| + //
|
| + // Here and in a few other places, we check rangeCount to work around a
|
| + // WebKit bug: it will sometimes incorrectly remove ranges from the
|
| + // selection if nodes are removed, so collapseToStart() will throw.
|
| + // This will break everything if we're using an actual selection, but
|
| + // if getActiveRange() is really just returning globalRange and that's
|
| + // all we care about, it will work fine. I only add the extra check
|
| + // for errors I actually hit in testing.
|
| + if (direction == "forward") {
|
| + if (getSelection().rangeCount) {
|
| + getSelection().collapseToStart();
|
| + }
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "Otherwise, call collapseToEnd() on the context object's Selection."
|
| + } else {
|
| + getSelection().collapseToEnd();
|
| + getActiveRange().collapse(false);
|
| + }
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "If start node is a Text node and start offset is 0, set start offset to
|
| + // the index of start node, then set start node to its parent."
|
| + if (startNode.nodeType == Node.TEXT_NODE
|
| + && startOffset == 0) {
|
| + startOffset = getNodeIndex(startNode);
|
| + startNode = startNode.parentNode;
|
| + }
|
| +
|
| + // "If end node is a Text node and end offset is its length, set end offset
|
| + // to one plus the index of end node, then set end node to its parent."
|
| + if (endNode.nodeType == Node.TEXT_NODE
|
| + && endOffset == getNodeLength(endNode)) {
|
| + endOffset = 1 + getNodeIndex(endNode);
|
| + endNode = endNode.parentNode;
|
| + }
|
| +
|
| + // "Call collapse(start node, start offset) on the context object's
|
| + // Selection."
|
| + getSelection().collapse(startNode, startOffset);
|
| + getActiveRange().setStart(startNode, startOffset);
|
| +
|
| + // "Call extend(end node, end offset) on the context object's Selection."
|
| + getSelection().extend(endNode, endOffset);
|
| + getActiveRange().setEnd(endNode, endOffset);
|
| +
|
| + // "Let start block be the active range's start node."
|
| + var startBlock = getActiveRange().startContainer;
|
| +
|
| + // "While start block's parent is in the same editing host and start block
|
| + // is an inline node, set start block to its parent."
|
| + while (inSameEditingHost(startBlock, startBlock.parentNode)
|
| + && isInlineNode(startBlock)) {
|
| + startBlock = startBlock.parentNode;
|
| + }
|
| +
|
| + // "If start block is neither a block node nor an editing host, or "span"
|
| + // is not an allowed child of start block, or start block is a td or th,
|
| + // set start block to null."
|
| + if ((!isBlockNode(startBlock) && !isEditingHost(startBlock))
|
| + || !isAllowedChild("span", startBlock)
|
| + || isHtmlElement(startBlock, ["td", "th"])) {
|
| + startBlock = null;
|
| + }
|
| +
|
| + // "Let end block be the active range's end node."
|
| + var endBlock = getActiveRange().endContainer;
|
| +
|
| + // "While end block's parent is in the same editing host and end block is
|
| + // an inline node, set end block to its parent."
|
| + while (inSameEditingHost(endBlock, endBlock.parentNode)
|
| + && isInlineNode(endBlock)) {
|
| + endBlock = endBlock.parentNode;
|
| + }
|
| +
|
| + // "If end block is neither a block node nor an editing host, or "span" is
|
| + // not an allowed child of end block, or end block is a td or th, set end
|
| + // block to null."
|
| + if ((!isBlockNode(endBlock) && !isEditingHost(endBlock))
|
| + || !isAllowedChild("span", endBlock)
|
| + || isHtmlElement(endBlock, ["td", "th"])) {
|
| + endBlock = null;
|
| + }
|
| +
|
| + // "Record current states and values, and let overrides be the result."
|
| + var overrides = recordCurrentStatesAndValues();
|
| +
|
| + // "If start node and end node are the same, and start node is an editable
|
| + // Text node:"
|
| + if (startNode == endNode
|
| + && isEditable(startNode)
|
| + && startNode.nodeType == Node.TEXT_NODE) {
|
| + // "Call deleteData(start offset, end offset − start offset) on start
|
| + // node."
|
| + startNode.deleteData(startOffset, endOffset - startOffset);
|
| +
|
| + // "Canonicalize whitespace at (start node, start offset), with fix
|
| + // collapsed space false."
|
| + canonicalizeWhitespace(startNode, startOffset, false);
|
| +
|
| + // "If direction is "forward", call collapseToStart() on the context
|
| + // object's Selection."
|
| + if (direction == "forward") {
|
| + if (getSelection().rangeCount) {
|
| + getSelection().collapseToStart();
|
| + }
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "Otherwise, call collapseToEnd() on the context object's Selection."
|
| + } else {
|
| + getSelection().collapseToEnd();
|
| + getActiveRange().collapse(false);
|
| + }
|
| +
|
| + // "Restore states and values from overrides."
|
| + restoreStatesAndValues(overrides);
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "If start node is an editable Text node, call deleteData() on it, with
|
| + // start offset as the first argument and (length of start node − start
|
| + // offset) as the second argument."
|
| + if (isEditable(startNode)
|
| + && startNode.nodeType == Node.TEXT_NODE) {
|
| + startNode.deleteData(startOffset, getNodeLength(startNode) - startOffset);
|
| + }
|
| +
|
| + // "Let node list be a list of nodes, initially empty."
|
| + //
|
| + // "For each node contained in the active range, append node to node list
|
| + // if the last member of node list (if any) is not an ancestor of node;
|
| + // node is editable; and node is not a thead, tbody, tfoot, tr, th, or td."
|
| + var nodeList = getContainedNodes(getActiveRange(),
|
| + function(node) {
|
| + return isEditable(node)
|
| + && !isHtmlElement(node, ["thead", "tbody", "tfoot", "tr", "th", "td"]);
|
| + }
|
| + );
|
| +
|
| + // "For each node in node list:"
|
| + for (var i = 0; i < nodeList.length; i++) {
|
| + var node = nodeList[i];
|
| +
|
| + // "Let parent be the parent of node."
|
| + var parent_ = node.parentNode;
|
| +
|
| + // "Remove node from parent."
|
| + parent_.removeChild(node);
|
| +
|
| + // "If the block node of parent has no visible children, and parent is
|
| + // editable or an editing host, call createElement("br") on the context
|
| + // object and append the result as the last child of parent."
|
| + if (![].some.call(getBlockNodeOf(parent_).childNodes, isVisible)
|
| + && (isEditable(parent_) || isEditingHost(parent_))) {
|
| + parent_.appendChild(document.createElement("br"));
|
| + }
|
| +
|
| + // "If strip wrappers is true or parent is not an ancestor container of
|
| + // start node, while parent is an editable inline node with length 0,
|
| + // let grandparent be the parent of parent, then remove parent from
|
| + // grandparent, then set parent to grandparent."
|
| + if (stripWrappers
|
| + || (!isAncestor(parent_, startNode) && parent_ != startNode)) {
|
| + while (isEditable(parent_)
|
| + && isInlineNode(parent_)
|
| + && getNodeLength(parent_) == 0) {
|
| + var grandparent = parent_.parentNode;
|
| + grandparent.removeChild(parent_);
|
| + parent_ = grandparent;
|
| + }
|
| + }
|
| + }
|
| +
|
| + // "If end node is an editable Text node, call deleteData(0, end offset) on
|
| + // it."
|
| + if (isEditable(endNode)
|
| + && endNode.nodeType == Node.TEXT_NODE) {
|
| + endNode.deleteData(0, endOffset);
|
| + }
|
| +
|
| + // "Canonicalize whitespace at the active range's start, with fix collapsed
|
| + // space false."
|
| + canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);
|
| +
|
| + // "Canonicalize whitespace at the active range's end, with fix collapsed
|
| + // space false."
|
| + canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);
|
| +
|
| + // "If block merging is false, or start block or end block is null, or
|
| + // start block is not in the same editing host as end block, or start block
|
| + // and end block are the same:"
|
| + if (!blockMerging
|
| + || !startBlock
|
| + || !endBlock
|
| + || !inSameEditingHost(startBlock, endBlock)
|
| + || startBlock == endBlock) {
|
| + // "If direction is "forward", call collapseToStart() on the context
|
| + // object's Selection."
|
| + if (direction == "forward") {
|
| + if (getSelection().rangeCount) {
|
| + getSelection().collapseToStart();
|
| + }
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "Otherwise, call collapseToEnd() on the context object's Selection."
|
| + } else {
|
| + if (getSelection().rangeCount) {
|
| + getSelection().collapseToEnd();
|
| + }
|
| + getActiveRange().collapse(false);
|
| + }
|
| +
|
| + // "Restore states and values from overrides."
|
| + restoreStatesAndValues(overrides);
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "If start block has one child, which is a collapsed block prop, remove
|
| + // its child from it."
|
| + if (startBlock.children.length == 1
|
| + && isCollapsedBlockProp(startBlock.firstChild)) {
|
| + startBlock.removeChild(startBlock.firstChild);
|
| + }
|
| +
|
| + // "If start block is an ancestor of end block:"
|
| + if (isAncestor(startBlock, endBlock)) {
|
| + // "Let reference node be end block."
|
| + var referenceNode = endBlock;
|
| +
|
| + // "While reference node is not a child of start block, set reference
|
| + // node to its parent."
|
| + while (referenceNode.parentNode != startBlock) {
|
| + referenceNode = referenceNode.parentNode;
|
| + }
|
| +
|
| + // "Call collapse() on the context object's Selection, with first
|
| + // argument start block and second argument the index of reference
|
| + // node."
|
| + getSelection().collapse(startBlock, getNodeIndex(referenceNode));
|
| + getActiveRange().setStart(startBlock, getNodeIndex(referenceNode));
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "If end block has no children:"
|
| + if (!endBlock.hasChildNodes()) {
|
| + // "While end block is editable and is the only child of its parent
|
| + // and is not a child of start block, let parent equal end block,
|
| + // then remove end block from parent, then set end block to
|
| + // parent."
|
| + while (isEditable(endBlock)
|
| + && endBlock.parentNode.childNodes.length == 1
|
| + && endBlock.parentNode != startBlock) {
|
| + var parent_ = endBlock;
|
| + parent_.removeChild(endBlock);
|
| + endBlock = parent_;
|
| + }
|
| +
|
| + // "If end block is editable and is not an inline node, and its
|
| + // previousSibling and nextSibling are both inline nodes, call
|
| + // createElement("br") on the context object and insert it into end
|
| + // block's parent immediately after end block."
|
| + if (isEditable(endBlock)
|
| + && !isInlineNode(endBlock)
|
| + && isInlineNode(endBlock.previousSibling)
|
| + && isInlineNode(endBlock.nextSibling)) {
|
| + endBlock.parentNode.insertBefore(document.createElement("br"), endBlock.nextSibling);
|
| + }
|
| +
|
| + // "If end block is editable, remove it from its parent."
|
| + if (isEditable(endBlock)) {
|
| + endBlock.parentNode.removeChild(endBlock);
|
| + }
|
| +
|
| + // "Restore states and values from overrides."
|
| + restoreStatesAndValues(overrides);
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "If end block's firstChild is not an inline node, restore states and
|
| + // values from overrides, then abort these steps."
|
| + if (!isInlineNode(endBlock.firstChild)) {
|
| + restoreStatesAndValues(overrides);
|
| + return;
|
| + }
|
| +
|
| + // "Let children be a list of nodes, initially empty."
|
| + var children = [];
|
| +
|
| + // "Append the first child of end block to children."
|
| + children.push(endBlock.firstChild);
|
| +
|
| + // "While children's last member is not a br, and children's last
|
| + // member's nextSibling is an inline node, append children's last
|
| + // member's nextSibling to children."
|
| + while (!isHtmlElement(children[children.length - 1], "br")
|
| + && isInlineNode(children[children.length - 1].nextSibling)) {
|
| + children.push(children[children.length - 1].nextSibling);
|
| + }
|
| +
|
| + // "Record the values of children, and let values be the result."
|
| + var values = recordValues(children);
|
| +
|
| + // "While children's first member's parent is not start block, split
|
| + // the parent of children."
|
| + while (children[0].parentNode != startBlock) {
|
| + splitParent(children);
|
| + }
|
| +
|
| + // "If children's first member's previousSibling is an editable br,
|
| + // remove that br from its parent."
|
| + if (isEditable(children[0].previousSibling)
|
| + && isHtmlElement(children[0].previousSibling, "br")) {
|
| + children[0].parentNode.removeChild(children[0].previousSibling);
|
| + }
|
| +
|
| + // "Otherwise, if start block is a descendant of end block:"
|
| + } else if (isDescendant(startBlock, endBlock)) {
|
| + // "Call collapse() on the context object's Selection, with first
|
| + // argument start block and second argument start block's length."
|
| + getSelection().collapse(startBlock, getNodeLength(startBlock));
|
| + getActiveRange().setStart(startBlock, getNodeLength(startBlock));
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "Let reference node be start block."
|
| + var referenceNode = startBlock;
|
| +
|
| + // "While reference node is not a child of end block, set reference
|
| + // node to its parent."
|
| + while (referenceNode.parentNode != endBlock) {
|
| + referenceNode = referenceNode.parentNode;
|
| + }
|
| +
|
| + // "If reference node's nextSibling is an inline node and start block's
|
| + // lastChild is a br, remove start block's lastChild from it."
|
| + if (isInlineNode(referenceNode.nextSibling)
|
| + && isHtmlElement(startBlock.lastChild, "br")) {
|
| + startBlock.removeChild(startBlock.lastChild);
|
| + }
|
| +
|
| + // "Let nodes to move be a list of nodes, initially empty."
|
| + var nodesToMove = [];
|
| +
|
| + // "If reference node's nextSibling is neither null nor a block node,
|
| + // append it to nodes to move."
|
| + if (referenceNode.nextSibling
|
| + && !isBlockNode(referenceNode.nextSibling)) {
|
| + nodesToMove.push(referenceNode.nextSibling);
|
| + }
|
| +
|
| + // "While nodes to move is nonempty and its last member isn't a br and
|
| + // its last member's nextSibling is neither null nor a block node,
|
| + // append its last member's nextSibling to nodes to move."
|
| + if (nodesToMove.length
|
| + && !isHtmlElement(nodesToMove[nodesToMove.length - 1], "br")
|
| + && nodesToMove[nodesToMove.length - 1].nextSibling
|
| + && !isBlockNode(nodesToMove[nodesToMove.length - 1].nextSibling)) {
|
| + nodesToMove.push(nodesToMove[nodesToMove.length - 1].nextSibling);
|
| + }
|
| +
|
| + // "Record the values of nodes to move, and let values be the result."
|
| + var values = recordValues(nodesToMove);
|
| +
|
| + // "For each node in nodes to move, append node as the last child of
|
| + // start block, preserving ranges."
|
| + nodesToMove.forEach(function(node) {
|
| + movePreservingRanges(node, startBlock, -1);
|
| + });
|
| +
|
| + // "Otherwise:"
|
| + } else {
|
| + // "Call collapse() on the context object's Selection, with first
|
| + // argument start block and second argument start block's length."
|
| + getSelection().collapse(startBlock, getNodeLength(startBlock));
|
| + getActiveRange().setStart(startBlock, getNodeLength(startBlock));
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "If end block's firstChild is an inline node and start block's
|
| + // lastChild is a br, remove start block's lastChild from it."
|
| + if (isInlineNode(endBlock.firstChild)
|
| + && isHtmlElement(startBlock.lastChild, "br")) {
|
| + startBlock.removeChild(startBlock.lastChild);
|
| + }
|
| +
|
| + // "Record the values of end block's children, and let values be the
|
| + // result."
|
| + var values = recordValues([].slice.call(endBlock.childNodes));
|
| +
|
| + // "While end block has children, append the first child of end block
|
| + // to start block, preserving ranges."
|
| + while (endBlock.hasChildNodes()) {
|
| + movePreservingRanges(endBlock.firstChild, startBlock, -1);
|
| + }
|
| +
|
| + // "While end block has no children, let parent be the parent of end
|
| + // block, then remove end block from parent, then set end block to
|
| + // parent."
|
| + while (!endBlock.hasChildNodes()) {
|
| + var parent_ = endBlock.parentNode;
|
| + parent_.removeChild(endBlock);
|
| + endBlock = parent_;
|
| + }
|
| + }
|
| +
|
| + // "Let ancestor be start block."
|
| + var ancestor = startBlock;
|
| +
|
| + // "While ancestor has an inclusive ancestor ol in the same editing host
|
| + // whose nextSibling is also an ol in the same editing host, or an
|
| + // inclusive ancestor ul in the same editing host whose nextSibling is also
|
| + // a ul in the same editing host:"
|
| + while (getInclusiveAncestors(ancestor).some(function(node) {
|
| + return inSameEditingHost(ancestor, node)
|
| + && (
|
| + (isHtmlElement(node, "ol") && isHtmlElement(node.nextSibling, "ol"))
|
| + || (isHtmlElement(node, "ul") && isHtmlElement(node.nextSibling, "ul"))
|
| + ) && inSameEditingHost(ancestor, node.nextSibling);
|
| + })) {
|
| + // "While ancestor and its nextSibling are not both ols in the same
|
| + // editing host, and are also not both uls in the same editing host,
|
| + // set ancestor to its parent."
|
| + while (!(
|
| + isHtmlElement(ancestor, "ol")
|
| + && isHtmlElement(ancestor.nextSibling, "ol")
|
| + && inSameEditingHost(ancestor, ancestor.nextSibling)
|
| + ) && !(
|
| + isHtmlElement(ancestor, "ul")
|
| + && isHtmlElement(ancestor.nextSibling, "ul")
|
| + && inSameEditingHost(ancestor, ancestor.nextSibling)
|
| + )) {
|
| + ancestor = ancestor.parentNode;
|
| + }
|
| +
|
| + // "While ancestor's nextSibling has children, append ancestor's
|
| + // nextSibling's firstChild as the last child of ancestor, preserving
|
| + // ranges."
|
| + while (ancestor.nextSibling.hasChildNodes()) {
|
| + movePreservingRanges(ancestor.nextSibling.firstChild, ancestor, -1);
|
| + }
|
| +
|
| + // "Remove ancestor's nextSibling from its parent."
|
| + ancestor.parentNode.removeChild(ancestor.nextSibling);
|
| + }
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| +
|
| + // "If start block has no children, call createElement("br") on the context
|
| + // object and append the result as the last child of start block."
|
| + if (!startBlock.hasChildNodes()) {
|
| + startBlock.appendChild(document.createElement("br"));
|
| + }
|
| +
|
| + // "Remove extraneous line breaks at the end of start block."
|
| + removeExtraneousLineBreaksAtTheEndOf(startBlock);
|
| +
|
| + // "Restore states and values from overrides."
|
| + restoreStatesAndValues(overrides);
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Splitting a node list's parent /////
|
| +//@{
|
| +
|
| +function splitParent(nodeList) {
|
| + // "Let original parent be the parent of the first member of node list."
|
| + var originalParent = nodeList[0].parentNode;
|
| +
|
| + // "If original parent is not editable or its parent is null, do nothing
|
| + // and abort these steps."
|
| + if (!isEditable(originalParent)
|
| + || !originalParent.parentNode) {
|
| + return;
|
| + }
|
| +
|
| + // "If the first child of original parent is in node list, remove
|
| + // extraneous line breaks before original parent."
|
| + if (nodeList.indexOf(originalParent.firstChild) != -1) {
|
| + removeExtraneousLineBreaksBefore(originalParent);
|
| + }
|
| +
|
| + // "If the first child of original parent is in node list, and original
|
| + // parent follows a line break, set follows line break to true. Otherwise,
|
| + // set follows line break to false."
|
| + var followsLineBreak_ = nodeList.indexOf(originalParent.firstChild) != -1
|
| + && followsLineBreak(originalParent);
|
| +
|
| + // "If the last child of original parent is in node list, and original
|
| + // parent precedes a line break, set precedes line break to true.
|
| + // Otherwise, set precedes line break to false."
|
| + var precedesLineBreak_ = nodeList.indexOf(originalParent.lastChild) != -1
|
| + && precedesLineBreak(originalParent);
|
| +
|
| + // "If the first child of original parent is not in node list, but its last
|
| + // child is:"
|
| + if (nodeList.indexOf(originalParent.firstChild) == -1
|
| + && nodeList.indexOf(originalParent.lastChild) != -1) {
|
| + // "For each node in node list, in reverse order, insert node into the
|
| + // parent of original parent immediately after original parent,
|
| + // preserving ranges."
|
| + for (var i = nodeList.length - 1; i >= 0; i--) {
|
| + movePreservingRanges(nodeList[i], originalParent.parentNode, 1 + getNodeIndex(originalParent));
|
| + }
|
| +
|
| + // "If precedes line break is true, and the last member of node list
|
| + // does not precede a line break, call createElement("br") on the
|
| + // context object and insert the result immediately after the last
|
| + // member of node list."
|
| + if (precedesLineBreak_
|
| + && !precedesLineBreak(nodeList[nodeList.length - 1])) {
|
| + nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);
|
| + }
|
| +
|
| + // "Remove extraneous line breaks at the end of original parent."
|
| + removeExtraneousLineBreaksAtTheEndOf(originalParent);
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "If the first child of original parent is not in node list:"
|
| + if (nodeList.indexOf(originalParent.firstChild) == -1) {
|
| + // "Let cloned parent be the result of calling cloneNode(false) on
|
| + // original parent."
|
| + var clonedParent = originalParent.cloneNode(false);
|
| +
|
| + // "If original parent has an id attribute, unset it."
|
| + originalParent.removeAttribute("id");
|
| +
|
| + // "Insert cloned parent into the parent of original parent immediately
|
| + // before original parent."
|
| + originalParent.parentNode.insertBefore(clonedParent, originalParent);
|
| +
|
| + // "While the previousSibling of the first member of node list is not
|
| + // null, append the first child of original parent as the last child of
|
| + // cloned parent, preserving ranges."
|
| + while (nodeList[0].previousSibling) {
|
| + movePreservingRanges(originalParent.firstChild, clonedParent, clonedParent.childNodes.length);
|
| + }
|
| + }
|
| +
|
| + // "For each node in node list, insert node into the parent of original
|
| + // parent immediately before original parent, preserving ranges."
|
| + for (var i = 0; i < nodeList.length; i++) {
|
| + movePreservingRanges(nodeList[i], originalParent.parentNode, getNodeIndex(originalParent));
|
| + }
|
| +
|
| + // "If follows line break is true, and the first member of node list does
|
| + // not follow a line break, call createElement("br") on the context object
|
| + // and insert the result immediately before the first member of node list."
|
| + if (followsLineBreak_
|
| + && !followsLineBreak(nodeList[0])) {
|
| + nodeList[0].parentNode.insertBefore(document.createElement("br"), nodeList[0]);
|
| + }
|
| +
|
| + // "If the last member of node list is an inline node other than a br, and
|
| + // the first child of original parent is a br, and original parent is not
|
| + // an inline node, remove the first child of original parent from original
|
| + // parent."
|
| + if (isInlineNode(nodeList[nodeList.length - 1])
|
| + && !isHtmlElement(nodeList[nodeList.length - 1], "br")
|
| + && isHtmlElement(originalParent.firstChild, "br")
|
| + && !isInlineNode(originalParent)) {
|
| + originalParent.removeChild(originalParent.firstChild);
|
| + }
|
| +
|
| + // "If original parent has no children:"
|
| + if (!originalParent.hasChildNodes()) {
|
| + // "Remove original parent from its parent."
|
| + originalParent.parentNode.removeChild(originalParent);
|
| +
|
| + // "If precedes line break is true, and the last member of node list
|
| + // does not precede a line break, call createElement("br") on the
|
| + // context object and insert the result immediately after the last
|
| + // member of node list."
|
| + if (precedesLineBreak_
|
| + && !precedesLineBreak(nodeList[nodeList.length - 1])) {
|
| + nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);
|
| + }
|
| +
|
| + // "Otherwise, remove extraneous line breaks before original parent."
|
| + } else {
|
| + removeExtraneousLineBreaksBefore(originalParent);
|
| + }
|
| +
|
| + // "If node list's last member's nextSibling is null, but its parent is not
|
| + // null, remove extraneous line breaks at the end of node list's last
|
| + // member's parent."
|
| + if (!nodeList[nodeList.length - 1].nextSibling
|
| + && nodeList[nodeList.length - 1].parentNode) {
|
| + removeExtraneousLineBreaksAtTheEndOf(nodeList[nodeList.length - 1].parentNode);
|
| + }
|
| +}
|
| +
|
| +// "To remove a node node while preserving its descendants, split the parent of
|
| +// node's children if it has any. If it has no children, instead remove it from
|
| +// its parent."
|
| +function removePreservingDescendants(node) {
|
| + if (node.hasChildNodes()) {
|
| + splitParent([].slice.call(node.childNodes));
|
| + } else {
|
| + node.parentNode.removeChild(node);
|
| + }
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Canonical space sequences /////
|
| +//@{
|
| +
|
| +function canonicalSpaceSequence(n, nonBreakingStart, nonBreakingEnd) {
|
| + // "If n is zero, return the empty string."
|
| + if (n == 0) {
|
| + return "";
|
| + }
|
| +
|
| + // "If n is one and both non-breaking start and non-breaking end are false,
|
| + // return a single space (U+0020)."
|
| + if (n == 1 && !nonBreakingStart && !nonBreakingEnd) {
|
| + return " ";
|
| + }
|
| +
|
| + // "If n is one, return a single non-breaking space (U+00A0)."
|
| + if (n == 1) {
|
| + return "\xa0";
|
| + }
|
| +
|
| + // "Let buffer be the empty string."
|
| + var buffer = "";
|
| +
|
| + // "If non-breaking start is true, let repeated pair be U+00A0 U+0020.
|
| + // Otherwise, let it be U+0020 U+00A0."
|
| + var repeatedPair;
|
| + if (nonBreakingStart) {
|
| + repeatedPair = "\xa0 ";
|
| + } else {
|
| + repeatedPair = " \xa0";
|
| + }
|
| +
|
| + // "While n is greater than three, append repeated pair to buffer and
|
| + // subtract two from n."
|
| + while (n > 3) {
|
| + buffer += repeatedPair;
|
| + n -= 2;
|
| + }
|
| +
|
| + // "If n is three, append a three-element string to buffer depending on
|
| + // non-breaking start and non-breaking end:"
|
| + if (n == 3) {
|
| + buffer +=
|
| + !nonBreakingStart && !nonBreakingEnd ? " \xa0 "
|
| + : nonBreakingStart && !nonBreakingEnd ? "\xa0\xa0 "
|
| + : !nonBreakingStart && nonBreakingEnd ? " \xa0\xa0"
|
| + : nonBreakingStart && nonBreakingEnd ? "\xa0 \xa0"
|
| + : "impossible";
|
| +
|
| + // "Otherwise, append a two-element string to buffer depending on
|
| + // non-breaking start and non-breaking end:"
|
| + } else {
|
| + buffer +=
|
| + !nonBreakingStart && !nonBreakingEnd ? "\xa0 "
|
| + : nonBreakingStart && !nonBreakingEnd ? "\xa0 "
|
| + : !nonBreakingStart && nonBreakingEnd ? " \xa0"
|
| + : nonBreakingStart && nonBreakingEnd ? "\xa0\xa0"
|
| + : "impossible";
|
| + }
|
| +
|
| + // "Return buffer."
|
| + return buffer;
|
| +}
|
| +
|
| +function canonicalizeWhitespace(node, offset, fixCollapsedSpace) {
|
| + if (fixCollapsedSpace === undefined) {
|
| + // "an optional boolean argument fix collapsed space that defaults to
|
| + // true"
|
| + fixCollapsedSpace = true;
|
| + }
|
| +
|
| + // "If node is neither editable nor an editing host, abort these steps."
|
| + if (!isEditable(node) && !isEditingHost(node)) {
|
| + return;
|
| + }
|
| +
|
| + // "Let start node equal node and let start offset equal offset."
|
| + var startNode = node;
|
| + var startOffset = offset;
|
| +
|
| + // "Repeat the following steps:"
|
| + while (true) {
|
| + // "If start node has a child in the same editing host with index start
|
| + // offset minus one, set start node to that child, then set start
|
| + // offset to start node's length."
|
| + if (0 <= startOffset - 1
|
| + && inSameEditingHost(startNode, startNode.childNodes[startOffset - 1])) {
|
| + startNode = startNode.childNodes[startOffset - 1];
|
| + startOffset = getNodeLength(startNode);
|
| +
|
| + // "Otherwise, if start offset is zero and start node does not follow a
|
| + // line break and start node's parent is in the same editing host, set
|
| + // start offset to start node's index, then set start node to its
|
| + // parent."
|
| + } else if (startOffset == 0
|
| + && !followsLineBreak(startNode)
|
| + && inSameEditingHost(startNode, startNode.parentNode)) {
|
| + startOffset = getNodeIndex(startNode);
|
| + startNode = startNode.parentNode;
|
| +
|
| + // "Otherwise, if start node is a Text node and its parent's resolved
|
| + // value for "white-space" is neither "pre" nor "pre-wrap" and start
|
| + // offset is not zero and the (start offset − 1)st element of start
|
| + // node's data is a space (0x0020) or non-breaking space (0x00A0),
|
| + // subtract one from start offset."
|
| + } else if (startNode.nodeType == Node.TEXT_NODE
|
| + && ["pre", "pre-wrap"].indexOf(getComputedStyle(startNode.parentNode).whiteSpace) == -1
|
| + && startOffset != 0
|
| + && /[ \xa0]/.test(startNode.data[startOffset - 1])) {
|
| + startOffset--;
|
| +
|
| + // "Otherwise, break from this loop."
|
| + } else {
|
| + break;
|
| + }
|
| + }
|
| +
|
| + // "Let end node equal start node and end offset equal start offset."
|
| + var endNode = startNode;
|
| + var endOffset = startOffset;
|
| +
|
| + // "Let length equal zero."
|
| + var length = 0;
|
| +
|
| + // "Let collapse spaces be true if start offset is zero and start node
|
| + // follows a line break, otherwise false."
|
| + var collapseSpaces = startOffset == 0 && followsLineBreak(startNode);
|
| +
|
| + // "Repeat the following steps:"
|
| + while (true) {
|
| + // "If end node has a child in the same editing host with index end
|
| + // offset, set end node to that child, then set end offset to zero."
|
| + if (endOffset < endNode.childNodes.length
|
| + && inSameEditingHost(endNode, endNode.childNodes[endOffset])) {
|
| + endNode = endNode.childNodes[endOffset];
|
| + endOffset = 0;
|
| +
|
| + // "Otherwise, if end offset is end node's length and end node does not
|
| + // precede a line break and end node's parent is in the same editing
|
| + // host, set end offset to one plus end node's index, then set end node
|
| + // to its parent."
|
| + } else if (endOffset == getNodeLength(endNode)
|
| + && !precedesLineBreak(endNode)
|
| + && inSameEditingHost(endNode, endNode.parentNode)) {
|
| + endOffset = 1 + getNodeIndex(endNode);
|
| + endNode = endNode.parentNode;
|
| +
|
| + // "Otherwise, if end node is a Text node and its parent's resolved
|
| + // value for "white-space" is neither "pre" nor "pre-wrap" and end
|
| + // offset is not end node's length and the end offsetth element of
|
| + // end node's data is a space (0x0020) or non-breaking space (0x00A0):"
|
| + } else if (endNode.nodeType == Node.TEXT_NODE
|
| + && ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -1
|
| + && endOffset != getNodeLength(endNode)
|
| + && /[ \xa0]/.test(endNode.data[endOffset])) {
|
| + // "If fix collapsed space is true, and collapse spaces is true,
|
| + // and the end offsetth code unit of end node's data is a space
|
| + // (0x0020): call deleteData(end offset, 1) on end node, then
|
| + // continue this loop from the beginning."
|
| + if (fixCollapsedSpace
|
| + && collapseSpaces
|
| + && " " == endNode.data[endOffset]) {
|
| + endNode.deleteData(endOffset, 1);
|
| + continue;
|
| + }
|
| +
|
| + // "Set collapse spaces to true if the end offsetth element of end
|
| + // node's data is a space (0x0020), false otherwise."
|
| + collapseSpaces = " " == endNode.data[endOffset];
|
| +
|
| + // "Add one to end offset."
|
| + endOffset++;
|
| +
|
| + // "Add one to length."
|
| + length++;
|
| +
|
| + // "Otherwise, break from this loop."
|
| + } else {
|
| + break;
|
| + }
|
| + }
|
| +
|
| + // "If fix collapsed space is true, then while (start node, start offset)
|
| + // is before (end node, end offset):"
|
| + if (fixCollapsedSpace) {
|
| + while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {
|
| + // "If end node has a child in the same editing host with index end
|
| + // offset − 1, set end node to that child, then set end offset to end
|
| + // node's length."
|
| + if (0 <= endOffset - 1
|
| + && endOffset - 1 < endNode.childNodes.length
|
| + && inSameEditingHost(endNode, endNode.childNodes[endOffset - 1])) {
|
| + endNode = endNode.childNodes[endOffset - 1];
|
| + endOffset = getNodeLength(endNode);
|
| +
|
| + // "Otherwise, if end offset is zero and end node's parent is in the
|
| + // same editing host, set end offset to end node's index, then set end
|
| + // node to its parent."
|
| + } else if (endOffset == 0
|
| + && inSameEditingHost(endNode, endNode.parentNode)) {
|
| + endOffset = getNodeIndex(endNode);
|
| + endNode = endNode.parentNode;
|
| +
|
| + // "Otherwise, if end node is a Text node and its parent's resolved
|
| + // value for "white-space" is neither "pre" nor "pre-wrap" and end
|
| + // offset is end node's length and the last code unit of end node's
|
| + // data is a space (0x0020) and end node precedes a line break:"
|
| + } else if (endNode.nodeType == Node.TEXT_NODE
|
| + && ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -1
|
| + && endOffset == getNodeLength(endNode)
|
| + && endNode.data[endNode.data.length - 1] == " "
|
| + && precedesLineBreak(endNode)) {
|
| + // "Subtract one from end offset."
|
| + endOffset--;
|
| +
|
| + // "Subtract one from length."
|
| + length--;
|
| +
|
| + // "Call deleteData(end offset, 1) on end node."
|
| + endNode.deleteData(endOffset, 1);
|
| +
|
| + // "Otherwise, break from this loop."
|
| + } else {
|
| + break;
|
| + }
|
| + }
|
| + }
|
| +
|
| + // "Let replacement whitespace be the canonical space sequence of length
|
| + // length. non-breaking start is true if start offset is zero and start
|
| + // node follows a line break, and false otherwise. non-breaking end is true
|
| + // if end offset is end node's length and end node precedes a line break,
|
| + // and false otherwise."
|
| + var replacementWhitespace = canonicalSpaceSequence(length,
|
| + startOffset == 0 && followsLineBreak(startNode),
|
| + endOffset == getNodeLength(endNode) && precedesLineBreak(endNode));
|
| +
|
| + // "While (start node, start offset) is before (end node, end offset):"
|
| + while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {
|
| + // "If start node has a child with index start offset, set start node
|
| + // to that child, then set start offset to zero."
|
| + if (startOffset < startNode.childNodes.length) {
|
| + startNode = startNode.childNodes[startOffset];
|
| + startOffset = 0;
|
| +
|
| + // "Otherwise, if start node is not a Text node or if start offset is
|
| + // start node's length, set start offset to one plus start node's
|
| + // index, then set start node to its parent."
|
| + } else if (startNode.nodeType != Node.TEXT_NODE
|
| + || startOffset == getNodeLength(startNode)) {
|
| + startOffset = 1 + getNodeIndex(startNode);
|
| + startNode = startNode.parentNode;
|
| +
|
| + // "Otherwise:"
|
| + } else {
|
| + // "Remove the first element from replacement whitespace, and let
|
| + // element be that element."
|
| + var element = replacementWhitespace[0];
|
| + replacementWhitespace = replacementWhitespace.slice(1);
|
| +
|
| + // "If element is not the same as the start offsetth element of
|
| + // start node's data:"
|
| + if (element != startNode.data[startOffset]) {
|
| + // "Call insertData(start offset, element) on start node."
|
| + startNode.insertData(startOffset, element);
|
| +
|
| + // "Call deleteData(start offset + 1, 1) on start node."
|
| + startNode.deleteData(startOffset + 1, 1);
|
| + }
|
| +
|
| + // "Add one to start offset."
|
| + startOffset++;
|
| + }
|
| + }
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Indenting and outdenting /////
|
| +//@{
|
| +
|
| +function indentNodes(nodeList) {
|
| + // "If node list is empty, do nothing and abort these steps."
|
| + if (!nodeList.length) {
|
| + return;
|
| + }
|
| +
|
| + // "Let first node be the first member of node list."
|
| + var firstNode = nodeList[0];
|
| +
|
| + // "If first node's parent is an ol or ul:"
|
| + if (isHtmlElement(firstNode.parentNode, ["OL", "UL"])) {
|
| + // "Let tag be the local name of the parent of first node."
|
| + var tag = firstNode.parentNode.tagName;
|
| +
|
| + // "Wrap node list, with sibling criteria returning true for an HTML
|
| + // element with local name tag and false otherwise, and new parent
|
| + // instructions returning the result of calling createElement(tag) on
|
| + // the ownerDocument of first node."
|
| + wrap(nodeList,
|
| + function(node) { return isHtmlElement(node, tag) },
|
| + function() { return firstNode.ownerDocument.createElement(tag) });
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "Wrap node list, with sibling criteria returning true for a simple
|
| + // indentation element and false otherwise, and new parent instructions
|
| + // returning the result of calling createElement("blockquote") on the
|
| + // ownerDocument of first node. Let new parent be the result."
|
| + var newParent = wrap(nodeList,
|
| + function(node) { return isSimpleIndentationElement(node) },
|
| + function() { return firstNode.ownerDocument.createElement("blockquote") });
|
| +
|
| + // "Fix disallowed ancestors of new parent."
|
| + fixDisallowedAncestors(newParent);
|
| +}
|
| +
|
| +function outdentNode(node) {
|
| + // "If node is not editable, abort these steps."
|
| + if (!isEditable(node)) {
|
| + return;
|
| + }
|
| +
|
| + // "If node is a simple indentation element, remove node, preserving its
|
| + // descendants. Then abort these steps."
|
| + if (isSimpleIndentationElement(node)) {
|
| + removePreservingDescendants(node);
|
| + return;
|
| + }
|
| +
|
| + // "If node is an indentation element:"
|
| + if (isIndentationElement(node)) {
|
| + // "Unset the dir attribute of node, if any."
|
| + node.removeAttribute("dir");
|
| +
|
| + // "Unset the margin, padding, and border CSS properties of node."
|
| + node.style.margin = "";
|
| + node.style.padding = "";
|
| + node.style.border = "";
|
| + if (node.getAttribute("style") == ""
|
| + // Crazy WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=68551
|
| + || node.getAttribute("style") == "border-width: initial; border-color: initial; ") {
|
| + node.removeAttribute("style");
|
| + }
|
| +
|
| + // "Set the tag name of node to "div"."
|
| + setTagName(node, "div");
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "Let current ancestor be node's parent."
|
| + var currentAncestor = node.parentNode;
|
| +
|
| + // "Let ancestor list be a list of nodes, initially empty."
|
| + var ancestorList = [];
|
| +
|
| + // "While current ancestor is an editable Element that is neither a simple
|
| + // indentation element nor an ol nor a ul, append current ancestor to
|
| + // ancestor list and then set current ancestor to its parent."
|
| + while (isEditable(currentAncestor)
|
| + && currentAncestor.nodeType == Node.ELEMENT_NODE
|
| + && !isSimpleIndentationElement(currentAncestor)
|
| + && !isHtmlElement(currentAncestor, ["ol", "ul"])) {
|
| + ancestorList.push(currentAncestor);
|
| + currentAncestor = currentAncestor.parentNode;
|
| + }
|
| +
|
| + // "If current ancestor is not an editable simple indentation element:"
|
| + if (!isEditable(currentAncestor)
|
| + || !isSimpleIndentationElement(currentAncestor)) {
|
| + // "Let current ancestor be node's parent."
|
| + currentAncestor = node.parentNode;
|
| +
|
| + // "Let ancestor list be the empty list."
|
| + ancestorList = [];
|
| +
|
| + // "While current ancestor is an editable Element that is neither an
|
| + // indentation element nor an ol nor a ul, append current ancestor to
|
| + // ancestor list and then set current ancestor to its parent."
|
| + while (isEditable(currentAncestor)
|
| + && currentAncestor.nodeType == Node.ELEMENT_NODE
|
| + && !isIndentationElement(currentAncestor)
|
| + && !isHtmlElement(currentAncestor, ["ol", "ul"])) {
|
| + ancestorList.push(currentAncestor);
|
| + currentAncestor = currentAncestor.parentNode;
|
| + }
|
| + }
|
| +
|
| + // "If node is an ol or ul and current ancestor is not an editable
|
| + // indentation element:"
|
| + if (isHtmlElement(node, ["OL", "UL"])
|
| + && (!isEditable(currentAncestor)
|
| + || !isIndentationElement(currentAncestor))) {
|
| + // "Unset the reversed, start, and type attributes of node, if any are
|
| + // set."
|
| + node.removeAttribute("reversed");
|
| + node.removeAttribute("start");
|
| + node.removeAttribute("type");
|
| +
|
| + // "Let children be the children of node."
|
| + var children = [].slice.call(node.childNodes);
|
| +
|
| + // "If node has attributes, and its parent is not an ol or ul, set the
|
| + // tag name of node to "div"."
|
| + if (node.attributes.length
|
| + && !isHtmlElement(node.parentNode, ["OL", "UL"])) {
|
| + setTagName(node, "div");
|
| +
|
| + // "Otherwise:"
|
| + } else {
|
| + // "Record the values of node's children, and let values be the
|
| + // result."
|
| + var values = recordValues([].slice.call(node.childNodes));
|
| +
|
| + // "Remove node, preserving its descendants."
|
| + removePreservingDescendants(node);
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| + }
|
| +
|
| + // "Fix disallowed ancestors of each member of children."
|
| + for (var i = 0; i < children.length; i++) {
|
| + fixDisallowedAncestors(children[i]);
|
| + }
|
| +
|
| + // "Abort these steps."
|
| + return;
|
| + }
|
| +
|
| + // "If current ancestor is not an editable indentation element, abort these
|
| + // steps."
|
| + if (!isEditable(currentAncestor)
|
| + || !isIndentationElement(currentAncestor)) {
|
| + return;
|
| + }
|
| +
|
| + // "Append current ancestor to ancestor list."
|
| + ancestorList.push(currentAncestor);
|
| +
|
| + // "Let original ancestor be current ancestor."
|
| + var originalAncestor = currentAncestor;
|
| +
|
| + // "While ancestor list is not empty:"
|
| + while (ancestorList.length) {
|
| + // "Let current ancestor be the last member of ancestor list."
|
| + //
|
| + // "Remove the last member of ancestor list."
|
| + currentAncestor = ancestorList.pop();
|
| +
|
| + // "Let target be the child of current ancestor that is equal to either
|
| + // node or the last member of ancestor list."
|
| + var target = node.parentNode == currentAncestor
|
| + ? node
|
| + : ancestorList[ancestorList.length - 1];
|
| +
|
| + // "If target is an inline node that is not a br, and its nextSibling
|
| + // is a br, remove target's nextSibling from its parent."
|
| + if (isInlineNode(target)
|
| + && !isHtmlElement(target, "BR")
|
| + && isHtmlElement(target.nextSibling, "BR")) {
|
| + target.parentNode.removeChild(target.nextSibling);
|
| + }
|
| +
|
| + // "Let preceding siblings be the preceding siblings of target, and let
|
| + // following siblings be the following siblings of target."
|
| + var precedingSiblings = [].slice.call(currentAncestor.childNodes, 0, getNodeIndex(target));
|
| + var followingSiblings = [].slice.call(currentAncestor.childNodes, 1 + getNodeIndex(target));
|
| +
|
| + // "Indent preceding siblings."
|
| + indentNodes(precedingSiblings);
|
| +
|
| + // "Indent following siblings."
|
| + indentNodes(followingSiblings);
|
| + }
|
| +
|
| + // "Outdent original ancestor."
|
| + outdentNode(originalAncestor);
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Toggling lists /////
|
| +//@{
|
| +
|
| +function toggleLists(tagName) {
|
| + // "Let mode be "disable" if the selection's list state is tag name, and
|
| + // "enable" otherwise."
|
| + var mode = getSelectionListState() == tagName ? "disable" : "enable";
|
| +
|
| + var range = getActiveRange();
|
| + tagName = tagName.toUpperCase();
|
| +
|
| + // "Let other tag name be "ol" if tag name is "ul", and "ul" if tag name is
|
| + // "ol"."
|
| + var otherTagName = tagName == "OL" ? "UL" : "OL";
|
| +
|
| + // "Let items be a list of all lis that are ancestor containers of the
|
| + // range's start and/or end node."
|
| + //
|
| + // It's annoying to get this in tree order using functional stuff without
|
| + // doing getDescendants(document), which is slow, so I do it imperatively.
|
| + var items = [];
|
| + (function(){
|
| + for (
|
| + var ancestorContainer = range.endContainer;
|
| + ancestorContainer != range.commonAncestorContainer;
|
| + ancestorContainer = ancestorContainer.parentNode
|
| + ) {
|
| + if (isHtmlElement(ancestorContainer, "li")) {
|
| + items.unshift(ancestorContainer);
|
| + }
|
| + }
|
| + for (
|
| + var ancestorContainer = range.startContainer;
|
| + ancestorContainer;
|
| + ancestorContainer = ancestorContainer.parentNode
|
| + ) {
|
| + if (isHtmlElement(ancestorContainer, "li")) {
|
| + items.unshift(ancestorContainer);
|
| + }
|
| + }
|
| + })();
|
| +
|
| + // "For each item in items, normalize sublists of item."
|
| + items.forEach(normalizeSublists);
|
| +
|
| + // "Block-extend the range, and let new range be the result."
|
| + var newRange = blockExtend(range);
|
| +
|
| + // "If mode is "enable", then let lists to convert consist of every
|
| + // editable HTML element with local name other tag name that is contained
|
| + // in new range, and for every list in lists to convert:"
|
| + if (mode == "enable") {
|
| + getAllContainedNodes(newRange, function(node) {
|
| + return isEditable(node)
|
| + && isHtmlElement(node, otherTagName);
|
| + }).forEach(function(list) {
|
| + // "If list's previousSibling or nextSibling is an editable HTML
|
| + // element with local name tag name:"
|
| + if ((isEditable(list.previousSibling) && isHtmlElement(list.previousSibling, tagName))
|
| + || (isEditable(list.nextSibling) && isHtmlElement(list.nextSibling, tagName))) {
|
| + // "Let children be list's children."
|
| + var children = [].slice.call(list.childNodes);
|
| +
|
| + // "Record the values of children, and let values be the
|
| + // result."
|
| + var values = recordValues(children);
|
| +
|
| + // "Split the parent of children."
|
| + splitParent(children);
|
| +
|
| + // "Wrap children, with sibling criteria returning true for an
|
| + // HTML element with local name tag name and false otherwise."
|
| + wrap(children, function(node) { return isHtmlElement(node, tagName) });
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| +
|
| + // "Otherwise, set the tag name of list to tag name."
|
| + } else {
|
| + setTagName(list, tagName);
|
| + }
|
| + });
|
| + }
|
| +
|
| + // "Let node list be a list of nodes, initially empty."
|
| + //
|
| + // "For each node node contained in new range, if node is editable; the
|
| + // last member of node list (if any) is not an ancestor of node; node
|
| + // is not an indentation element; and either node is an ol or ul, or its
|
| + // parent is an ol or ul, or it is an allowed child of "li"; then append
|
| + // node to node list."
|
| + var nodeList = getContainedNodes(newRange, function(node) {
|
| + return isEditable(node)
|
| + && !isIndentationElement(node)
|
| + && (isHtmlElement(node, ["OL", "UL"])
|
| + || isHtmlElement(node.parentNode, ["OL", "UL"])
|
| + || isAllowedChild(node, "li"));
|
| + });
|
| +
|
| + // "If mode is "enable", remove from node list any ol or ul whose parent is
|
| + // not also an ol or ul."
|
| + if (mode == "enable") {
|
| + nodeList = nodeList.filter(function(node) {
|
| + return !isHtmlElement(node, ["ol", "ul"])
|
| + || isHtmlElement(node.parentNode, ["ol", "ul"]);
|
| + });
|
| + }
|
| +
|
| + // "If mode is "disable", then while node list is not empty:"
|
| + if (mode == "disable") {
|
| + while (nodeList.length) {
|
| + // "Let sublist be an empty list of nodes."
|
| + var sublist = [];
|
| +
|
| + // "Remove the first member from node list and append it to
|
| + // sublist."
|
| + sublist.push(nodeList.shift());
|
| +
|
| + // "If the first member of sublist is an HTML element with local
|
| + // name tag name, outdent it and continue this loop from the
|
| + // beginning."
|
| + if (isHtmlElement(sublist[0], tagName)) {
|
| + outdentNode(sublist[0]);
|
| + continue;
|
| + }
|
| +
|
| + // "While node list is not empty, and the first member of node list
|
| + // is the nextSibling of the last member of sublist and is not an
|
| + // HTML element with local name tag name, remove the first member
|
| + // from node list and append it to sublist."
|
| + while (nodeList.length
|
| + && nodeList[0] == sublist[sublist.length - 1].nextSibling
|
| + && !isHtmlElement(nodeList[0], tagName)) {
|
| + sublist.push(nodeList.shift());
|
| + }
|
| +
|
| + // "Record the values of sublist, and let values be the result."
|
| + var values = recordValues(sublist);
|
| +
|
| + // "Split the parent of sublist."
|
| + splitParent(sublist);
|
| +
|
| + // "Fix disallowed ancestors of each member of sublist."
|
| + for (var i = 0; i < sublist.length; i++) {
|
| + fixDisallowedAncestors(sublist[i]);
|
| + }
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| + }
|
| +
|
| + // "Otherwise, while node list is not empty:"
|
| + } else {
|
| + while (nodeList.length) {
|
| + // "Let sublist be an empty list of nodes."
|
| + var sublist = [];
|
| +
|
| + // "While either sublist is empty, or node list is not empty and
|
| + // its first member is the nextSibling of sublist's last member:"
|
| + while (!sublist.length
|
| + || (nodeList.length
|
| + && nodeList[0] == sublist[sublist.length - 1].nextSibling)) {
|
| + // "If node list's first member is a p or div, set the tag name
|
| + // of node list's first member to "li", and append the result
|
| + // to sublist. Remove the first member from node list."
|
| + if (isHtmlElement(nodeList[0], ["p", "div"])) {
|
| + sublist.push(setTagName(nodeList[0], "li"));
|
| + nodeList.shift();
|
| +
|
| + // "Otherwise, if the first member of node list is an li or ol
|
| + // or ul, remove it from node list and append it to sublist."
|
| + } else if (isHtmlElement(nodeList[0], ["li", "ol", "ul"])) {
|
| + sublist.push(nodeList.shift());
|
| +
|
| + // "Otherwise:"
|
| + } else {
|
| + // "Let nodes to wrap be a list of nodes, initially empty."
|
| + var nodesToWrap = [];
|
| +
|
| + // "While nodes to wrap is empty, or node list is not empty
|
| + // and its first member is the nextSibling of nodes to
|
| + // wrap's last member and the first member of node list is
|
| + // an inline node and the last member of nodes to wrap is
|
| + // an inline node other than a br, remove the first member
|
| + // from node list and append it to nodes to wrap."
|
| + while (!nodesToWrap.length
|
| + || (nodeList.length
|
| + && nodeList[0] == nodesToWrap[nodesToWrap.length - 1].nextSibling
|
| + && isInlineNode(nodeList[0])
|
| + && isInlineNode(nodesToWrap[nodesToWrap.length - 1])
|
| + && !isHtmlElement(nodesToWrap[nodesToWrap.length - 1], "br"))) {
|
| + nodesToWrap.push(nodeList.shift());
|
| + }
|
| +
|
| + // "Wrap nodes to wrap, with new parent instructions
|
| + // returning the result of calling createElement("li") on
|
| + // the context object. Append the result to sublist."
|
| + sublist.push(wrap(nodesToWrap,
|
| + undefined,
|
| + function() { return document.createElement("li") }));
|
| + }
|
| + }
|
| +
|
| + // "If sublist's first member's parent is an HTML element with
|
| + // local name tag name, or if every member of sublist is an ol or
|
| + // ul, continue this loop from the beginning."
|
| + if (isHtmlElement(sublist[0].parentNode, tagName)
|
| + || sublist.every(function(node) { return isHtmlElement(node, ["ol", "ul"]) })) {
|
| + continue;
|
| + }
|
| +
|
| + // "If sublist's first member's parent is an HTML element with
|
| + // local name other tag name:"
|
| + if (isHtmlElement(sublist[0].parentNode, otherTagName)) {
|
| + // "Record the values of sublist, and let values be the
|
| + // result."
|
| + var values = recordValues(sublist);
|
| +
|
| + // "Split the parent of sublist."
|
| + splitParent(sublist);
|
| +
|
| + // "Wrap sublist, with sibling criteria returning true for an
|
| + // HTML element with local name tag name and false otherwise,
|
| + // and new parent instructions returning the result of calling
|
| + // createElement(tag name) on the context object."
|
| + wrap(sublist,
|
| + function(node) { return isHtmlElement(node, tagName) },
|
| + function() { return document.createElement(tagName) });
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| +
|
| + // "Continue this loop from the beginning."
|
| + continue;
|
| + }
|
| +
|
| + // "Wrap sublist, with sibling criteria returning true for an HTML
|
| + // element with local name tag name and false otherwise, and new
|
| + // parent instructions being the following:"
|
| + // . . .
|
| + // "Fix disallowed ancestors of the previous step's result."
|
| + fixDisallowedAncestors(wrap(sublist,
|
| + function(node) { return isHtmlElement(node, tagName) },
|
| + function() {
|
| + // "If sublist's first member's parent is not an editable
|
| + // simple indentation element, or sublist's first member's
|
| + // parent's previousSibling is not an editable HTML element
|
| + // with local name tag name, call createElement(tag name)
|
| + // on the context object and return the result."
|
| + if (!isEditable(sublist[0].parentNode)
|
| + || !isSimpleIndentationElement(sublist[0].parentNode)
|
| + || !isEditable(sublist[0].parentNode.previousSibling)
|
| + || !isHtmlElement(sublist[0].parentNode.previousSibling, tagName)) {
|
| + return document.createElement(tagName);
|
| + }
|
| +
|
| + // "Let list be sublist's first member's parent's
|
| + // previousSibling."
|
| + var list = sublist[0].parentNode.previousSibling;
|
| +
|
| + // "Normalize sublists of list's lastChild."
|
| + normalizeSublists(list.lastChild);
|
| +
|
| + // "If list's lastChild is not an editable HTML element
|
| + // with local name tag name, call createElement(tag name)
|
| + // on the context object, and append the result as the last
|
| + // child of list."
|
| + if (!isEditable(list.lastChild)
|
| + || !isHtmlElement(list.lastChild, tagName)) {
|
| + list.appendChild(document.createElement(tagName));
|
| + }
|
| +
|
| + // "Return the last child of list."
|
| + return list.lastChild;
|
| + }
|
| + ));
|
| + }
|
| + }
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Justifying the selection /////
|
| +//@{
|
| +
|
| +function justifySelection(alignment) {
|
| + // "Block-extend the active range, and let new range be the result."
|
| + var newRange = blockExtend(globalRange);
|
| +
|
| + // "Let element list be a list of all editable Elements contained in new
|
| + // range that either has an attribute in the HTML namespace whose local
|
| + // name is "align", or has a style attribute that sets "text-align", or is
|
| + // a center."
|
| + var elementList = getAllContainedNodes(newRange, function(node) {
|
| + return node.nodeType == Node.ELEMENT_NODE
|
| + && isEditable(node)
|
| + // Ignoring namespaces here
|
| + && (
|
| + node.hasAttribute("align")
|
| + || node.style.textAlign != ""
|
| + || isHtmlElement(node, "center")
|
| + );
|
| + });
|
| +
|
| + // "For each element in element list:"
|
| + for (var i = 0; i < elementList.length; i++) {
|
| + var element = elementList[i];
|
| +
|
| + // "If element has an attribute in the HTML namespace whose local name
|
| + // is "align", remove that attribute."
|
| + element.removeAttribute("align");
|
| +
|
| + // "Unset the CSS property "text-align" on element, if it's set by a
|
| + // style attribute."
|
| + element.style.textAlign = "";
|
| + if (element.getAttribute("style") == "") {
|
| + element.removeAttribute("style");
|
| + }
|
| +
|
| + // "If element is a div or span or center with no attributes, remove
|
| + // it, preserving its descendants."
|
| + if (isHtmlElement(element, ["div", "span", "center"])
|
| + && !element.attributes.length) {
|
| + removePreservingDescendants(element);
|
| + }
|
| +
|
| + // "If element is a center with one or more attributes, set the tag
|
| + // name of element to "div"."
|
| + if (isHtmlElement(element, "center")
|
| + && element.attributes.length) {
|
| + setTagName(element, "div");
|
| + }
|
| + }
|
| +
|
| + // "Block-extend the active range, and let new range be the result."
|
| + newRange = blockExtend(globalRange);
|
| +
|
| + // "Let node list be a list of nodes, initially empty."
|
| + var nodeList = [];
|
| +
|
| + // "For each node node contained in new range, append node to node list if
|
| + // the last member of node list (if any) is not an ancestor of node; node
|
| + // is editable; node is an allowed child of "div"; and node's alignment
|
| + // value is not alignment."
|
| + nodeList = getContainedNodes(newRange, function(node) {
|
| + return isEditable(node)
|
| + && isAllowedChild(node, "div")
|
| + && getAlignmentValue(node) != alignment;
|
| + });
|
| +
|
| + // "While node list is not empty:"
|
| + while (nodeList.length) {
|
| + // "Let sublist be a list of nodes, initially empty."
|
| + var sublist = [];
|
| +
|
| + // "Remove the first member of node list and append it to sublist."
|
| + sublist.push(nodeList.shift());
|
| +
|
| + // "While node list is not empty, and the first member of node list is
|
| + // the nextSibling of the last member of sublist, remove the first
|
| + // member of node list and append it to sublist."
|
| + while (nodeList.length
|
| + && nodeList[0] == sublist[sublist.length - 1].nextSibling) {
|
| + sublist.push(nodeList.shift());
|
| + }
|
| +
|
| + // "Wrap sublist. Sibling criteria returns true for any div that has
|
| + // one or both of the following two attributes and no other attributes,
|
| + // and false otherwise:"
|
| + //
|
| + // * "An align attribute whose value is an ASCII case-insensitive
|
| + // match for alignment.
|
| + // * "A style attribute which sets exactly one CSS property
|
| + // (including unrecognized or invalid attributes), which is
|
| + // "text-align", which is set to alignment.
|
| + //
|
| + // "New parent instructions are to call createElement("div") on the
|
| + // context object, then set its CSS property "text-align" to alignment
|
| + // and return the result."
|
| + wrap(sublist,
|
| + function(node) {
|
| + return isHtmlElement(node, "div")
|
| + && [].every.call(node.attributes, function(attr) {
|
| + return (attr.name == "align" && attr.value.toLowerCase() == alignment)
|
| + || (attr.name == "style" && node.style.length == 1 && node.style.textAlign == alignment);
|
| + });
|
| + },
|
| + function() {
|
| + var newParent = document.createElement("div");
|
| + newParent.setAttribute("style", "text-align: " + alignment);
|
| + return newParent;
|
| + }
|
| + );
|
| + }
|
| +}
|
| +
|
| +
|
| +//@}
|
| +///// Automatic linking /////
|
| +//@{
|
| +// "An autolinkable URL is a string of the following form:"
|
| +var autolinkableUrlRegexp =
|
| + // "Either a string matching the scheme pattern from RFC 3986 section 3.1
|
| + // followed by the literal string ://, or the literal string mailto:;
|
| + // followed by"
|
| + //
|
| + // From the RFC: scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
|
| + "([a-zA-Z][a-zA-Z0-9+.-]*://|mailto:)"
|
| + // "Zero or more characters other than space characters; followed by"
|
| + + "[^ \t\n\f\r]*"
|
| + // "A character that is not one of the ASCII characters !"'(),-.:;<>[]`{}."
|
| + + "[^!\"'(),\\-.:;<>[\\]`{}]";
|
| +
|
| +// "A valid e-mail address is a string that matches the ABNF production 1*(
|
| +// atext / "." ) "@" ldh-str *( "." ldh-str ) where atext is defined in RFC
|
| +// 5322 section 3.2.3, and ldh-str is defined in RFC 1034 section 3.5."
|
| +//
|
| +// atext: ALPHA / DIGIT / "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" /
|
| +// "/" / "=" / "?" / "^" / "_" / "`" / "{" / "|" / "}" / "~"
|
| +//
|
| +//<ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>
|
| +//<let-dig-hyp> ::= <let-dig> | "-"
|
| +//<let-dig> ::= <letter> | <digit>
|
| +var validEmailRegexp =
|
| + "[a-zA-Z0-9!#$%&'*+\\-/=?^_`{|}~.]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*";
|
| +
|
| +function autolink(node, endOffset) {
|
| + // "While (node, end offset)'s previous equivalent point is not null, set
|
| + // it to its previous equivalent point."
|
| + while (getPreviousEquivalentPoint(node, endOffset)) {
|
| + var prev = getPreviousEquivalentPoint(node, endOffset);
|
| + node = prev[0];
|
| + endOffset = prev[1];
|
| + }
|
| +
|
| + // "If node is not a Text node, or has an a ancestor, do nothing and abort
|
| + // these steps."
|
| + if (node.nodeType != Node.TEXT_NODE
|
| + || getAncestors(node).some(function(ancestor) { return isHtmlElement(ancestor, "a") })) {
|
| + return;
|
| + }
|
| +
|
| + // "Let search be the largest substring of node's data whose end is end
|
| + // offset and that contains no space characters."
|
| + var search = /[^ \t\n\f\r]*$/.exec(node.substringData(0, endOffset))[0];
|
| +
|
| + // "If some substring of search is an autolinkable URL:"
|
| + if (new RegExp(autolinkableUrlRegexp).test(search)) {
|
| + // "While there is no substring of node's data ending at end offset
|
| + // that is an autolinkable URL, decrement end offset."
|
| + while (!(new RegExp(autolinkableUrlRegexp + "$").test(node.substringData(0, endOffset)))) {
|
| + endOffset--;
|
| + }
|
| +
|
| + // "Let start offset be the start index of the longest substring of
|
| + // node's data that is an autolinkable URL ending at end offset."
|
| + var startOffset = new RegExp(autolinkableUrlRegexp + "$").exec(node.substringData(0, endOffset)).index;
|
| +
|
| + // "Let href be the substring of node's data starting at start offset
|
| + // and ending at end offset."
|
| + var href = node.substringData(startOffset, endOffset - startOffset);
|
| +
|
| + // "Otherwise, if some substring of search is a valid e-mail address:"
|
| + } else if (new RegExp(validEmailRegexp).test(search)) {
|
| + // "While there is no substring of node's data ending at end offset
|
| + // that is a valid e-mail address, decrement end offset."
|
| + while (!(new RegExp(validEmailRegexp + "$").test(node.substringData(0, endOffset)))) {
|
| + endOffset--;
|
| + }
|
| +
|
| + // "Let start offset be the start index of the longest substring of
|
| + // node's data that is a valid e-mail address ending at end offset."
|
| + var startOffset = new RegExp(validEmailRegexp + "$").exec(node.substringData(0, endOffset)).index;
|
| +
|
| + // "Let href be "mailto:" concatenated with the substring of node's
|
| + // data starting at start offset and ending at end offset."
|
| + var href = "mailto:" + node.substringData(startOffset, endOffset - startOffset);
|
| +
|
| + // "Otherwise, do nothing and abort these steps."
|
| + } else {
|
| + return;
|
| + }
|
| +
|
| + // "Let original range be the active range."
|
| + var originalRange = getActiveRange();
|
| +
|
| + // "Create a new range with start (node, start offset) and end (node, end
|
| + // offset), and set the context object's selection's range to it."
|
| + var newRange = document.createRange();
|
| + newRange.setStart(node, startOffset);
|
| + newRange.setEnd(node, endOffset);
|
| + getSelection().removeAllRanges();
|
| + getSelection().addRange(newRange);
|
| + globalRange = newRange;
|
| +
|
| + // "Take the action for "createLink", with value equal to href."
|
| + commands.createlink.action(href);
|
| +
|
| + // "Set the context object's selection's range to original range."
|
| + getSelection().removeAllRanges();
|
| + getSelection().addRange(originalRange);
|
| + globalRange = originalRange;
|
| +}
|
| +//@}
|
| +///// The delete command /////
|
| +//@{
|
| +commands["delete"] = {
|
| + preservesOverrides: true,
|
| + action: function() {
|
| + // "If the active range is not collapsed, delete the selection and
|
| + // return true."
|
| + if (!getActiveRange().collapsed) {
|
| + deleteSelection();
|
| + return true;
|
| + }
|
| +
|
| + // "Canonicalize whitespace at the active range's start."
|
| + canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
|
| +
|
| + // "Let node and offset be the active range's start node and offset."
|
| + var node = getActiveRange().startContainer;
|
| + var offset = getActiveRange().startOffset;
|
| +
|
| + // "Repeat the following steps:"
|
| + while (true) {
|
| + // "If offset is zero and node's previousSibling is an editable
|
| + // invisible node, remove node's previousSibling from its parent."
|
| + if (offset == 0
|
| + && isEditable(node.previousSibling)
|
| + && isInvisible(node.previousSibling)) {
|
| + node.parentNode.removeChild(node.previousSibling);
|
| +
|
| + // "Otherwise, if node has a child with index offset − 1 and that
|
| + // child is an editable invisible node, remove that child from
|
| + // node, then subtract one from offset."
|
| + } else if (0 <= offset - 1
|
| + && offset - 1 < node.childNodes.length
|
| + && isEditable(node.childNodes[offset - 1])
|
| + && isInvisible(node.childNodes[offset - 1])) {
|
| + node.removeChild(node.childNodes[offset - 1]);
|
| + offset--;
|
| +
|
| + // "Otherwise, if offset is zero and node is an inline node, or if
|
| + // node is an invisible node, set offset to the index of node, then
|
| + // set node to its parent."
|
| + } else if ((offset == 0
|
| + && isInlineNode(node))
|
| + || isInvisible(node)) {
|
| + offset = getNodeIndex(node);
|
| + node = node.parentNode;
|
| +
|
| + // "Otherwise, if node has a child with index offset − 1 and that
|
| + // child is an editable a, remove that child from node, preserving
|
| + // its descendants. Then return true."
|
| + } else if (0 <= offset - 1
|
| + && offset - 1 < node.childNodes.length
|
| + && isEditable(node.childNodes[offset - 1])
|
| + && isHtmlElement(node.childNodes[offset - 1], "a")) {
|
| + removePreservingDescendants(node.childNodes[offset - 1]);
|
| + return true;
|
| +
|
| + // "Otherwise, if node has a child with index offset − 1 and that
|
| + // child is not a block node or a br or an img, set node to that
|
| + // child, then set offset to the length of node."
|
| + } else if (0 <= offset - 1
|
| + && offset - 1 < node.childNodes.length
|
| + && !isBlockNode(node.childNodes[offset - 1])
|
| + && !isHtmlElement(node.childNodes[offset - 1], ["br", "img"])) {
|
| + node = node.childNodes[offset - 1];
|
| + offset = getNodeLength(node);
|
| +
|
| + // "Otherwise, break from this loop."
|
| + } else {
|
| + break;
|
| + }
|
| + }
|
| +
|
| + // "If node is a Text node and offset is not zero, or if node is a
|
| + // block node that has a child with index offset − 1 and that child is
|
| + // a br or hr or img:"
|
| + if ((node.nodeType == Node.TEXT_NODE
|
| + && offset != 0)
|
| + || (isBlockNode(node)
|
| + && 0 <= offset - 1
|
| + && offset - 1 < node.childNodes.length
|
| + && isHtmlElement(node.childNodes[offset - 1], ["br", "hr", "img"]))) {
|
| + // "Call collapse(node, offset) on the context object's Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setEnd(node, offset);
|
| +
|
| + // "Call extend(node, offset − 1) on the context object's
|
| + // Selection."
|
| + getSelection().extend(node, offset - 1);
|
| + getActiveRange().setStart(node, offset - 1);
|
| +
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "If node is an inline node, return true."
|
| + if (isInlineNode(node)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If node is an li or dt or dd and is the first child of its parent,
|
| + // and offset is zero:"
|
| + if (isHtmlElement(node, ["li", "dt", "dd"])
|
| + && node == node.parentNode.firstChild
|
| + && offset == 0) {
|
| + // "Let items be a list of all lis that are ancestors of node."
|
| + //
|
| + // Remember, must be in tree order.
|
| + var items = [];
|
| + for (var ancestor = node.parentNode; ancestor; ancestor = ancestor.parentNode) {
|
| + if (isHtmlElement(ancestor, "li")) {
|
| + items.unshift(ancestor);
|
| + }
|
| + }
|
| +
|
| + // "Normalize sublists of each item in items."
|
| + for (var i = 0; i < items.length; i++) {
|
| + normalizeSublists(items[i]);
|
| + }
|
| +
|
| + // "Record the values of the one-node list consisting of node, and
|
| + // let values be the result."
|
| + var values = recordValues([node]);
|
| +
|
| + // "Split the parent of the one-node list consisting of node."
|
| + splitParent([node]);
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| +
|
| + // "If node is a dd or dt, and it is not an allowed child of any of
|
| + // its ancestors in the same editing host, set the tag name of node
|
| + // to the default single-line container name and let node be the
|
| + // result."
|
| + if (isHtmlElement(node, ["dd", "dt"])
|
| + && getAncestors(node).every(function(ancestor) {
|
| + return !inSameEditingHost(node, ancestor)
|
| + || !isAllowedChild(node, ancestor)
|
| + })) {
|
| + node = setTagName(node, defaultSingleLineContainerName);
|
| + }
|
| +
|
| + // "Fix disallowed ancestors of node."
|
| + fixDisallowedAncestors(node);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "Let start node equal node and let start offset equal offset."
|
| + var startNode = node;
|
| + var startOffset = offset;
|
| +
|
| + // "Repeat the following steps:"
|
| + while (true) {
|
| + // "If start offset is zero, set start offset to the index of start
|
| + // node and then set start node to its parent."
|
| + if (startOffset == 0) {
|
| + startOffset = getNodeIndex(startNode);
|
| + startNode = startNode.parentNode;
|
| +
|
| + // "Otherwise, if start node has an editable invisible child with
|
| + // index start offset minus one, remove it from start node and
|
| + // subtract one from start offset."
|
| + } else if (0 <= startOffset - 1
|
| + && startOffset - 1 < startNode.childNodes.length
|
| + && isEditable(startNode.childNodes[startOffset - 1])
|
| + && isInvisible(startNode.childNodes[startOffset - 1])) {
|
| + startNode.removeChild(startNode.childNodes[startOffset - 1]);
|
| + startOffset--;
|
| +
|
| + // "Otherwise, break from this loop."
|
| + } else {
|
| + break;
|
| + }
|
| + }
|
| +
|
| + // "If offset is zero, and node has an editable ancestor container in
|
| + // the same editing host that's an indentation element:"
|
| + if (offset == 0
|
| + && getAncestors(node).concat(node).filter(function(ancestor) {
|
| + return isEditable(ancestor)
|
| + && inSameEditingHost(ancestor, node)
|
| + && isIndentationElement(ancestor);
|
| + }).length) {
|
| + // "Block-extend the range whose start and end are both (node, 0),
|
| + // and let new range be the result."
|
| + var newRange = document.createRange();
|
| + newRange.setStart(node, 0);
|
| + newRange = blockExtend(newRange);
|
| +
|
| + // "Let node list be a list of nodes, initially empty."
|
| + //
|
| + // "For each node current node contained in new range, append
|
| + // current node to node list if the last member of node list (if
|
| + // any) is not an ancestor of current node, and current node is
|
| + // editable but has no editable descendants."
|
| + var nodeList = getContainedNodes(newRange, function(currentNode) {
|
| + return isEditable(currentNode)
|
| + && !hasEditableDescendants(currentNode);
|
| + });
|
| +
|
| + // "Outdent each node in node list."
|
| + for (var i = 0; i < nodeList.length; i++) {
|
| + outdentNode(nodeList[i]);
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "If the child of start node with index start offset is a table,
|
| + // return true."
|
| + if (isHtmlElement(startNode.childNodes[startOffset], "table")) {
|
| + return true;
|
| + }
|
| +
|
| + // "If start node has a child with index start offset − 1, and that
|
| + // child is a table:"
|
| + if (0 <= startOffset - 1
|
| + && startOffset - 1 < startNode.childNodes.length
|
| + && isHtmlElement(startNode.childNodes[startOffset - 1], "table")) {
|
| + // "Call collapse(start node, start offset − 1) on the context
|
| + // object's Selection."
|
| + getSelection().collapse(startNode, startOffset - 1);
|
| + getActiveRange().setStart(startNode, startOffset - 1);
|
| +
|
| + // "Call extend(start node, start offset) on the context object's
|
| + // Selection."
|
| + getSelection().extend(startNode, startOffset);
|
| + getActiveRange().setEnd(startNode, startOffset);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "If offset is zero; and either the child of start node with index
|
| + // start offset minus one is an hr, or the child is a br whose
|
| + // previousSibling is either a br or not an inline node:"
|
| + if (offset == 0
|
| + && (isHtmlElement(startNode.childNodes[startOffset - 1], "hr")
|
| + || (
|
| + isHtmlElement(startNode.childNodes[startOffset - 1], "br")
|
| + && (
|
| + isHtmlElement(startNode.childNodes[startOffset - 1].previousSibling, "br")
|
| + || !isInlineNode(startNode.childNodes[startOffset - 1].previousSibling)
|
| + )
|
| + )
|
| + )) {
|
| + // "Call collapse(start node, start offset − 1) on the context
|
| + // object's Selection."
|
| + getSelection().collapse(startNode, startOffset - 1);
|
| + getActiveRange().setStart(startNode, startOffset - 1);
|
| +
|
| + // "Call extend(start node, start offset) on the context object's
|
| + // Selection."
|
| + getSelection().extend(startNode, startOffset);
|
| + getActiveRange().setEnd(startNode, startOffset);
|
| +
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "Call collapse(node, offset) on the Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setStart(node, offset);
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "If the child of start node with index start offset is an li or dt
|
| + // or dd, and that child's firstChild is an inline node, and start
|
| + // offset is not zero:"
|
| + if (isHtmlElement(startNode.childNodes[startOffset], ["li", "dt", "dd"])
|
| + && isInlineNode(startNode.childNodes[startOffset].firstChild)
|
| + && startOffset != 0) {
|
| + // "Let previous item be the child of start node with index start
|
| + // offset minus one."
|
| + var previousItem = startNode.childNodes[startOffset - 1];
|
| +
|
| + // "If previous item's lastChild is an inline node other than a br,
|
| + // call createElement("br") on the context object and append the
|
| + // result as the last child of previous item."
|
| + if (isInlineNode(previousItem.lastChild)
|
| + && !isHtmlElement(previousItem.lastChild, "br")) {
|
| + previousItem.appendChild(document.createElement("br"));
|
| + }
|
| +
|
| + // "If previous item's lastChild is an inline node, call
|
| + // createElement("br") on the context object and append the result
|
| + // as the last child of previous item."
|
| + if (isInlineNode(previousItem.lastChild)) {
|
| + previousItem.appendChild(document.createElement("br"));
|
| + }
|
| + }
|
| +
|
| + // "If start node's child with index start offset is an li or dt or dd,
|
| + // and that child's previousSibling is also an li or dt or dd:"
|
| + if (isHtmlElement(startNode.childNodes[startOffset], ["li", "dt", "dd"])
|
| + && isHtmlElement(startNode.childNodes[startOffset].previousSibling, ["li", "dt", "dd"])) {
|
| + // "Call cloneRange() on the active range, and let original range
|
| + // be the result."
|
| + //
|
| + // We need to add it to extraRanges so it will actually get updated
|
| + // when moving preserving ranges.
|
| + var originalRange = getActiveRange().cloneRange();
|
| + extraRanges.push(originalRange);
|
| +
|
| + // "Set start node to its child with index start offset − 1."
|
| + startNode = startNode.childNodes[startOffset - 1];
|
| +
|
| + // "Set start offset to start node's length."
|
| + startOffset = getNodeLength(startNode);
|
| +
|
| + // "Set node to start node's nextSibling."
|
| + node = startNode.nextSibling;
|
| +
|
| + // "Call collapse(start node, start offset) on the context object's
|
| + // Selection."
|
| + getSelection().collapse(startNode, startOffset);
|
| + getActiveRange().setStart(startNode, startOffset);
|
| +
|
| + // "Call extend(node, 0) on the context object's Selection."
|
| + getSelection().extend(node, 0);
|
| + getActiveRange().setEnd(node, 0);
|
| +
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "Call removeAllRanges() on the context object's Selection."
|
| + getSelection().removeAllRanges();
|
| +
|
| + // "Call addRange(original range) on the context object's
|
| + // Selection."
|
| + getSelection().addRange(originalRange);
|
| + getActiveRange().setStart(originalRange.startContainer, originalRange.startOffset);
|
| + getActiveRange().setEnd(originalRange.endContainer, originalRange.endOffset);
|
| +
|
| + // "Return true."
|
| + extraRanges.pop();
|
| + return true;
|
| + }
|
| +
|
| + // "While start node has a child with index start offset minus one:"
|
| + while (0 <= startOffset - 1
|
| + && startOffset - 1 < startNode.childNodes.length) {
|
| + // "If start node's child with index start offset minus one is
|
| + // editable and invisible, remove it from start node, then subtract
|
| + // one from start offset."
|
| + if (isEditable(startNode.childNodes[startOffset - 1])
|
| + && isInvisible(startNode.childNodes[startOffset - 1])) {
|
| + startNode.removeChild(startNode.childNodes[startOffset - 1]);
|
| + startOffset--;
|
| +
|
| + // "Otherwise, set start node to its child with index start offset
|
| + // minus one, then set start offset to the length of start node."
|
| + } else {
|
| + startNode = startNode.childNodes[startOffset - 1];
|
| + startOffset = getNodeLength(startNode);
|
| + }
|
| + }
|
| +
|
| + // "Call collapse(start node, start offset) on the context object's
|
| + // Selection."
|
| + getSelection().collapse(startNode, startOffset);
|
| + getActiveRange().setStart(startNode, startOffset);
|
| +
|
| + // "Call extend(node, offset) on the context object's Selection."
|
| + getSelection().extend(node, offset);
|
| + getActiveRange().setEnd(node, offset);
|
| +
|
| + // "Delete the selection, with direction "backward"."
|
| + deleteSelection({direction: "backward"});
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The formatBlock command /////
|
| +//@{
|
| +// "A formattable block name is "address", "dd", "div", "dt", "h1", "h2", "h3",
|
| +// "h4", "h5", "h6", "p", or "pre"."
|
| +var formattableBlockNames = ["address", "dd", "div", "dt", "h1", "h2", "h3",
|
| + "h4", "h5", "h6", "p", "pre"];
|
| +
|
| +commands.formatblock = {
|
| + preservesOverrides: true,
|
| + action: function(value) {
|
| + // "If value begins with a "<" character and ends with a ">" character,
|
| + // remove the first and last characters from it."
|
| + if (/^<.*>$/.test(value)) {
|
| + value = value.slice(1, -1);
|
| + }
|
| +
|
| + // "Let value be converted to ASCII lowercase."
|
| + value = value.toLowerCase();
|
| +
|
| + // "If value is not a formattable block name, return false."
|
| + if (formattableBlockNames.indexOf(value) == -1) {
|
| + return false;
|
| + }
|
| +
|
| + // "Block-extend the active range, and let new range be the result."
|
| + var newRange = blockExtend(getActiveRange());
|
| +
|
| + // "Let node list be an empty list of nodes."
|
| + //
|
| + // "For each node node contained in new range, append node to node list
|
| + // if it is editable, the last member of original node list (if any) is
|
| + // not an ancestor of node, node is either a non-list single-line
|
| + // container or an allowed child of "p" or a dd or dt, and node is not
|
| + // the ancestor of a prohibited paragraph child."
|
| + var nodeList = getContainedNodes(newRange, function(node) {
|
| + return isEditable(node)
|
| + && (isNonListSingleLineContainer(node)
|
| + || isAllowedChild(node, "p")
|
| + || isHtmlElement(node, ["dd", "dt"]))
|
| + && !getDescendants(node).some(isProhibitedParagraphChild);
|
| + });
|
| +
|
| + // "Record the values of node list, and let values be the result."
|
| + var values = recordValues(nodeList);
|
| +
|
| + // "For each node in node list, while node is the descendant of an
|
| + // editable HTML element in the same editing host, whose local name is
|
| + // a formattable block name, and which is not the ancestor of a
|
| + // prohibited paragraph child, split the parent of the one-node list
|
| + // consisting of node."
|
| + for (var i = 0; i < nodeList.length; i++) {
|
| + var node = nodeList[i];
|
| + while (getAncestors(node).some(function(ancestor) {
|
| + return isEditable(ancestor)
|
| + && inSameEditingHost(ancestor, node)
|
| + && isHtmlElement(ancestor, formattableBlockNames)
|
| + && !getDescendants(ancestor).some(isProhibitedParagraphChild);
|
| + })) {
|
| + splitParent([node]);
|
| + }
|
| + }
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| +
|
| + // "While node list is not empty:"
|
| + while (nodeList.length) {
|
| + var sublist;
|
| +
|
| + // "If the first member of node list is a single-line
|
| + // container:"
|
| + if (isSingleLineContainer(nodeList[0])) {
|
| + // "Let sublist be the children of the first member of node
|
| + // list."
|
| + sublist = [].slice.call(nodeList[0].childNodes);
|
| +
|
| + // "Record the values of sublist, and let values be the
|
| + // result."
|
| + var values = recordValues(sublist);
|
| +
|
| + // "Remove the first member of node list from its parent,
|
| + // preserving its descendants."
|
| + removePreservingDescendants(nodeList[0]);
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| +
|
| + // "Remove the first member from node list."
|
| + nodeList.shift();
|
| +
|
| + // "Otherwise:"
|
| + } else {
|
| + // "Let sublist be an empty list of nodes."
|
| + sublist = [];
|
| +
|
| + // "Remove the first member of node list and append it to
|
| + // sublist."
|
| + sublist.push(nodeList.shift());
|
| +
|
| + // "While node list is not empty, and the first member of
|
| + // node list is the nextSibling of the last member of
|
| + // sublist, and the first member of node list is not a
|
| + // single-line container, and the last member of sublist is
|
| + // not a br, remove the first member of node list and
|
| + // append it to sublist."
|
| + while (nodeList.length
|
| + && nodeList[0] == sublist[sublist.length - 1].nextSibling
|
| + && !isSingleLineContainer(nodeList[0])
|
| + && !isHtmlElement(sublist[sublist.length - 1], "BR")) {
|
| + sublist.push(nodeList.shift());
|
| + }
|
| + }
|
| +
|
| + // "Wrap sublist. If value is "div" or "p", sibling criteria
|
| + // returns false; otherwise it returns true for an HTML element
|
| + // with local name value and no attributes, and false otherwise.
|
| + // New parent instructions return the result of running
|
| + // createElement(value) on the context object. Then fix disallowed
|
| + // ancestors of the result."
|
| + fixDisallowedAncestors(wrap(sublist,
|
| + ["div", "p"].indexOf(value) == - 1
|
| + ? function(node) { return isHtmlElement(node, value) && !node.attributes.length }
|
| + : function() { return false },
|
| + function() { return document.createElement(value) }));
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }, indeterm: function() {
|
| + // "If the active range is null, return false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| +
|
| + // "Block-extend the active range, and let new range be the result."
|
| + var newRange = blockExtend(getActiveRange());
|
| +
|
| + // "Let node list be all visible editable nodes that are contained in
|
| + // new range and have no children."
|
| + var nodeList = getAllContainedNodes(newRange, function(node) {
|
| + return isVisible(node)
|
| + && isEditable(node)
|
| + && !node.hasChildNodes();
|
| + });
|
| +
|
| + // "If node list is empty, return false."
|
| + if (!nodeList.length) {
|
| + return false;
|
| + }
|
| +
|
| + // "Let type be null."
|
| + var type = null;
|
| +
|
| + // "For each node in node list:"
|
| + for (var i = 0; i < nodeList.length; i++) {
|
| + var node = nodeList[i];
|
| +
|
| + // "While node's parent is editable and in the same editing host as
|
| + // node, and node is not an HTML element whose local name is a
|
| + // formattable block name, set node to its parent."
|
| + while (isEditable(node.parentNode)
|
| + && inSameEditingHost(node, node.parentNode)
|
| + && !isHtmlElement(node, formattableBlockNames)) {
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "Let current type be the empty string."
|
| + var currentType = "";
|
| +
|
| + // "If node is an editable HTML element whose local name is a
|
| + // formattable block name, and node is not the ancestor of a
|
| + // prohibited paragraph child, set current type to node's local
|
| + // name."
|
| + if (isEditable(node)
|
| + && isHtmlElement(node, formattableBlockNames)
|
| + && !getDescendants(node).some(isProhibitedParagraphChild)) {
|
| + currentType = node.tagName;
|
| + }
|
| +
|
| + // "If type is null, set type to current type."
|
| + if (type === null) {
|
| + type = currentType;
|
| +
|
| + // "Otherwise, if type does not equal current type, return true."
|
| + } else if (type != currentType) {
|
| + return true;
|
| + }
|
| + }
|
| +
|
| + // "Return false."
|
| + return false;
|
| + }, value: function() {
|
| + // "If the active range is null, return the empty string."
|
| + if (!getActiveRange()) {
|
| + return "";
|
| + }
|
| +
|
| + // "Block-extend the active range, and let new range be the result."
|
| + var newRange = blockExtend(getActiveRange());
|
| +
|
| + // "Let node be the first visible editable node that is contained in
|
| + // new range and has no children. If there is no such node, return the
|
| + // empty string."
|
| + var nodes = getAllContainedNodes(newRange, function(node) {
|
| + return isVisible(node)
|
| + && isEditable(node)
|
| + && !node.hasChildNodes();
|
| + });
|
| + if (!nodes.length) {
|
| + return "";
|
| + }
|
| + var node = nodes[0];
|
| +
|
| + // "While node's parent is editable and in the same editing host as
|
| + // node, and node is not an HTML element whose local name is a
|
| + // formattable block name, set node to its parent."
|
| + while (isEditable(node.parentNode)
|
| + && inSameEditingHost(node, node.parentNode)
|
| + && !isHtmlElement(node, formattableBlockNames)) {
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "If node is an editable HTML element whose local name is a
|
| + // formattable block name, and node is not the ancestor of a prohibited
|
| + // paragraph child, return node's local name, converted to ASCII
|
| + // lowercase."
|
| + if (isEditable(node)
|
| + && isHtmlElement(node, formattableBlockNames)
|
| + && !getDescendants(node).some(isProhibitedParagraphChild)) {
|
| + return node.tagName.toLowerCase();
|
| + }
|
| +
|
| + // "Return the empty string."
|
| + return "";
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The forwardDelete command /////
|
| +//@{
|
| +commands.forwarddelete = {
|
| + preservesOverrides: true,
|
| + action: function() {
|
| + // "If the active range is not collapsed, delete the selection and
|
| + // return true."
|
| + if (!getActiveRange().collapsed) {
|
| + deleteSelection();
|
| + return true;
|
| + }
|
| +
|
| + // "Canonicalize whitespace at the active range's start."
|
| + canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
|
| +
|
| + // "Let node and offset be the active range's start node and offset."
|
| + var node = getActiveRange().startContainer;
|
| + var offset = getActiveRange().startOffset;
|
| +
|
| + // "Repeat the following steps:"
|
| + while (true) {
|
| + // "If offset is the length of node and node's nextSibling is an
|
| + // editable invisible node, remove node's nextSibling from its
|
| + // parent."
|
| + if (offset == getNodeLength(node)
|
| + && isEditable(node.nextSibling)
|
| + && isInvisible(node.nextSibling)) {
|
| + node.parentNode.removeChild(node.nextSibling);
|
| +
|
| + // "Otherwise, if node has a child with index offset and that child
|
| + // is an editable invisible node, remove that child from node."
|
| + } else if (offset < node.childNodes.length
|
| + && isEditable(node.childNodes[offset])
|
| + && isInvisible(node.childNodes[offset])) {
|
| + node.removeChild(node.childNodes[offset]);
|
| +
|
| + // "Otherwise, if offset is the length of node and node is an
|
| + // inline node, or if node is invisible, set offset to one plus the
|
| + // index of node, then set node to its parent."
|
| + } else if ((offset == getNodeLength(node)
|
| + && isInlineNode(node))
|
| + || isInvisible(node)) {
|
| + offset = 1 + getNodeIndex(node);
|
| + node = node.parentNode;
|
| +
|
| + // "Otherwise, if node has a child with index offset and that child
|
| + // is neither a block node nor a br nor an img nor a collapsed
|
| + // block prop, set node to that child, then set offset to zero."
|
| + } else if (offset < node.childNodes.length
|
| + && !isBlockNode(node.childNodes[offset])
|
| + && !isHtmlElement(node.childNodes[offset], ["br", "img"])
|
| + && !isCollapsedBlockProp(node.childNodes[offset])) {
|
| + node = node.childNodes[offset];
|
| + offset = 0;
|
| +
|
| + // "Otherwise, break from this loop."
|
| + } else {
|
| + break;
|
| + }
|
| + }
|
| +
|
| + // "If node is a Text node and offset is not node's length:"
|
| + if (node.nodeType == Node.TEXT_NODE
|
| + && offset != getNodeLength(node)) {
|
| + // "Let end offset be offset plus one."
|
| + var endOffset = offset + 1;
|
| +
|
| + // "While end offset is not node's length and the end offsetth
|
| + // element of node's data has general category M when interpreted
|
| + // as a Unicode code point, add one to end offset."
|
| + //
|
| + // TODO: Not even going to try handling anything beyond the most
|
| + // basic combining marks, since I couldn't find a good list. I
|
| + // special-case a few Hebrew diacritics too to test basic coverage
|
| + // of non-Latin stuff.
|
| + while (endOffset != node.length
|
| + && /^[\u0300-\u036f\u0591-\u05bd\u05c1\u05c2]$/.test(node.data[endOffset])) {
|
| + endOffset++;
|
| + }
|
| +
|
| + // "Call collapse(node, offset) on the context object's Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setStart(node, offset);
|
| +
|
| + // "Call extend(node, end offset) on the context object's
|
| + // Selection."
|
| + getSelection().extend(node, endOffset);
|
| + getActiveRange().setEnd(node, endOffset);
|
| +
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "If node is an inline node, return true."
|
| + if (isInlineNode(node)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If node has a child with index offset and that child is a br or hr
|
| + // or img, but is not a collapsed block prop:"
|
| + if (offset < node.childNodes.length
|
| + && isHtmlElement(node.childNodes[offset], ["br", "hr", "img"])
|
| + && !isCollapsedBlockProp(node.childNodes[offset])) {
|
| + // "Call collapse(node, offset) on the context object's Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setStart(node, offset);
|
| +
|
| + // "Call extend(node, offset + 1) on the context object's
|
| + // Selection."
|
| + getSelection().extend(node, offset + 1);
|
| + getActiveRange().setEnd(node, offset + 1);
|
| +
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "Let end node equal node and let end offset equal offset."
|
| + var endNode = node;
|
| + var endOffset = offset;
|
| +
|
| + // "If end node has a child with index end offset, and that child is a
|
| + // collapsed block prop, add one to end offset."
|
| + if (endOffset < endNode.childNodes.length
|
| + && isCollapsedBlockProp(endNode.childNodes[endOffset])) {
|
| + endOffset++;
|
| + }
|
| +
|
| + // "Repeat the following steps:"
|
| + while (true) {
|
| + // "If end offset is the length of end node, set end offset to one
|
| + // plus the index of end node and then set end node to its parent."
|
| + if (endOffset == getNodeLength(endNode)) {
|
| + endOffset = 1 + getNodeIndex(endNode);
|
| + endNode = endNode.parentNode;
|
| +
|
| + // "Otherwise, if end node has a an editable invisible child with
|
| + // index end offset, remove it from end node."
|
| + } else if (endOffset < endNode.childNodes.length
|
| + && isEditable(endNode.childNodes[endOffset])
|
| + && isInvisible(endNode.childNodes[endOffset])) {
|
| + endNode.removeChild(endNode.childNodes[endOffset]);
|
| +
|
| + // "Otherwise, break from this loop."
|
| + } else {
|
| + break;
|
| + }
|
| + }
|
| +
|
| + // "If the child of end node with index end offset minus one is a
|
| + // table, return true."
|
| + if (isHtmlElement(endNode.childNodes[endOffset - 1], "table")) {
|
| + return true;
|
| + }
|
| +
|
| + // "If the child of end node with index end offset is a table:"
|
| + if (isHtmlElement(endNode.childNodes[endOffset], "table")) {
|
| + // "Call collapse(end node, end offset) on the context object's
|
| + // Selection."
|
| + getSelection().collapse(endNode, endOffset);
|
| + getActiveRange().setStart(endNode, endOffset);
|
| +
|
| + // "Call extend(end node, end offset + 1) on the context object's
|
| + // Selection."
|
| + getSelection().extend(endNode, endOffset + 1);
|
| + getActiveRange().setEnd(endNode, endOffset + 1);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "If offset is the length of node, and the child of end node with
|
| + // index end offset is an hr or br:"
|
| + if (offset == getNodeLength(node)
|
| + && isHtmlElement(endNode.childNodes[endOffset], ["br", "hr"])) {
|
| + // "Call collapse(end node, end offset) on the context object's
|
| + // Selection."
|
| + getSelection().collapse(endNode, endOffset);
|
| + getActiveRange().setStart(endNode, endOffset);
|
| +
|
| + // "Call extend(end node, end offset + 1) on the context object's
|
| + // Selection."
|
| + getSelection().extend(endNode, endOffset + 1);
|
| + getActiveRange().setEnd(endNode, endOffset + 1);
|
| +
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "Call collapse(node, offset) on the Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setStart(node, offset);
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "While end node has a child with index end offset:"
|
| + while (endOffset < endNode.childNodes.length) {
|
| + // "If end node's child with index end offset is editable and
|
| + // invisible, remove it from end node."
|
| + if (isEditable(endNode.childNodes[endOffset])
|
| + && isInvisible(endNode.childNodes[endOffset])) {
|
| + endNode.removeChild(endNode.childNodes[endOffset]);
|
| +
|
| + // "Otherwise, set end node to its child with index end offset and
|
| + // set end offset to zero."
|
| + } else {
|
| + endNode = endNode.childNodes[endOffset];
|
| + endOffset = 0;
|
| + }
|
| + }
|
| +
|
| + // "Call collapse(node, offset) on the context object's Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setStart(node, offset);
|
| +
|
| + // "Call extend(end node, end offset) on the context object's
|
| + // Selection."
|
| + getSelection().extend(endNode, endOffset);
|
| + getActiveRange().setEnd(endNode, endOffset);
|
| +
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The indent command /////
|
| +//@{
|
| +commands.indent = {
|
| + preservesOverrides: true,
|
| + action: function() {
|
| + // "Let items be a list of all lis that are ancestor containers of the
|
| + // active range's start and/or end node."
|
| + //
|
| + // Has to be in tree order, remember!
|
| + var items = [];
|
| + for (var node = getActiveRange().endContainer; node != getActiveRange().commonAncestorContainer; node = node.parentNode) {
|
| + if (isHtmlElement(node, "LI")) {
|
| + items.unshift(node);
|
| + }
|
| + }
|
| + for (var node = getActiveRange().startContainer; node != getActiveRange().commonAncestorContainer; node = node.parentNode) {
|
| + if (isHtmlElement(node, "LI")) {
|
| + items.unshift(node);
|
| + }
|
| + }
|
| + for (var node = getActiveRange().commonAncestorContainer; node; node = node.parentNode) {
|
| + if (isHtmlElement(node, "LI")) {
|
| + items.unshift(node);
|
| + }
|
| + }
|
| +
|
| + // "For each item in items, normalize sublists of item."
|
| + for (var i = 0; i < items.length; i++) {
|
| + normalizeSublists(items[i]);
|
| + }
|
| +
|
| + // "Block-extend the active range, and let new range be the result."
|
| + var newRange = blockExtend(getActiveRange());
|
| +
|
| + // "Let node list be a list of nodes, initially empty."
|
| + var nodeList = [];
|
| +
|
| + // "For each node node contained in new range, if node is editable and
|
| + // is an allowed child of "div" or "ol" and if the last member of node
|
| + // list (if any) is not an ancestor of node, append node to node list."
|
| + nodeList = getContainedNodes(newRange, function(node) {
|
| + return isEditable(node)
|
| + && (isAllowedChild(node, "div")
|
| + || isAllowedChild(node, "ol"));
|
| + });
|
| +
|
| + // "If the first visible member of node list is an li whose parent is
|
| + // an ol or ul:"
|
| + if (isHtmlElement(nodeList.filter(isVisible)[0], "li")
|
| + && isHtmlElement(nodeList.filter(isVisible)[0].parentNode, ["ol", "ul"])) {
|
| + // "Let sibling be node list's first visible member's
|
| + // previousSibling."
|
| + var sibling = nodeList.filter(isVisible)[0].previousSibling;
|
| +
|
| + // "While sibling is invisible, set sibling to its
|
| + // previousSibling."
|
| + while (isInvisible(sibling)) {
|
| + sibling = sibling.previousSibling;
|
| + }
|
| +
|
| + // "If sibling is an li, normalize sublists of sibling."
|
| + if (isHtmlElement(sibling, "li")) {
|
| + normalizeSublists(sibling);
|
| + }
|
| + }
|
| +
|
| + // "While node list is not empty:"
|
| + while (nodeList.length) {
|
| + // "Let sublist be a list of nodes, initially empty."
|
| + var sublist = [];
|
| +
|
| + // "Remove the first member of node list and append it to sublist."
|
| + sublist.push(nodeList.shift());
|
| +
|
| + // "While the first member of node list is the nextSibling of the
|
| + // last member of sublist, remove the first member of node list and
|
| + // append it to sublist."
|
| + while (nodeList.length
|
| + && nodeList[0] == sublist[sublist.length - 1].nextSibling) {
|
| + sublist.push(nodeList.shift());
|
| + }
|
| +
|
| + // "Indent sublist."
|
| + indentNodes(sublist);
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The insertHorizontalRule command /////
|
| +//@{
|
| +commands.inserthorizontalrule = {
|
| + preservesOverrides: true,
|
| + action: function() {
|
| + // "Let start node, start offset, end node, and end offset be the
|
| + // active range's start and end nodes and offsets."
|
| + var startNode = getActiveRange().startContainer;
|
| + var startOffset = getActiveRange().startOffset;
|
| + var endNode = getActiveRange().endContainer;
|
| + var endOffset = getActiveRange().endOffset;
|
| +
|
| + // "While start offset is 0 and start node's parent is not null, set
|
| + // start offset to start node's index, then set start node to its
|
| + // parent."
|
| + while (startOffset == 0
|
| + && startNode.parentNode) {
|
| + startOffset = getNodeIndex(startNode);
|
| + startNode = startNode.parentNode;
|
| + }
|
| +
|
| + // "While end offset is end node's length, and end node's parent is not
|
| + // null, set end offset to one plus end node's index, then set end node
|
| + // to its parent."
|
| + while (endOffset == getNodeLength(endNode)
|
| + && endNode.parentNode) {
|
| + endOffset = 1 + getNodeIndex(endNode);
|
| + endNode = endNode.parentNode;
|
| + }
|
| +
|
| + // "Call collapse(start node, start offset) on the context object's
|
| + // Selection."
|
| + getSelection().collapse(startNode, startOffset);
|
| + getActiveRange().setStart(startNode, startOffset);
|
| +
|
| + // "Call extend(end node, end offset) on the context object's
|
| + // Selection."
|
| + getSelection().extend(endNode, endOffset);
|
| + getActiveRange().setEnd(endNode, endOffset);
|
| +
|
| + // "Delete the selection, with block merging false."
|
| + deleteSelection({blockMerging: false});
|
| +
|
| + // "If the active range's start node is neither editable nor an editing
|
| + // host, return true."
|
| + if (!isEditable(getActiveRange().startContainer)
|
| + && !isEditingHost(getActiveRange().startContainer)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If the active range's start node is a Text node and its start
|
| + // offset is zero, call collapse() on the context object's Selection,
|
| + // with first argument the active range's start node's parent and
|
| + // second argument the active range's start node's index."
|
| + if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
| + && getActiveRange().startOffset == 0) {
|
| + var newNode = getActiveRange().startContainer.parentNode;
|
| + var newOffset = getNodeIndex(getActiveRange().startContainer);
|
| + getSelection().collapse(newNode, newOffset);
|
| + getActiveRange().setStart(newNode, newOffset);
|
| + getActiveRange().collapse(true);
|
| + }
|
| +
|
| + // "If the active range's start node is a Text node and its start
|
| + // offset is the length of its start node, call collapse() on the
|
| + // context object's Selection, with first argument the active range's
|
| + // start node's parent, and the second argument one plus the active
|
| + // range's start node's index."
|
| + if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
| + && getActiveRange().startOffset == getNodeLength(getActiveRange().startContainer)) {
|
| + var newNode = getActiveRange().startContainer.parentNode;
|
| + var newOffset = 1 + getNodeIndex(getActiveRange().startContainer);
|
| + getSelection().collapse(newNode, newOffset);
|
| + getActiveRange().setStart(newNode, newOffset);
|
| + getActiveRange().collapse(true);
|
| + }
|
| +
|
| + // "Let hr be the result of calling createElement("hr") on the
|
| + // context object."
|
| + var hr = document.createElement("hr");
|
| +
|
| + // "Run insertNode(hr) on the active range."
|
| + getActiveRange().insertNode(hr);
|
| +
|
| + // "Fix disallowed ancestors of hr."
|
| + fixDisallowedAncestors(hr);
|
| +
|
| + // "Run collapse() on the context object's Selection, with first
|
| + // argument hr's parent and the second argument equal to one plus hr's
|
| + // index."
|
| + getSelection().collapse(hr.parentNode, 1 + getNodeIndex(hr));
|
| + getActiveRange().setStart(hr.parentNode, 1 + getNodeIndex(hr));
|
| + getActiveRange().collapse(true);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The insertHTML command /////
|
| +//@{
|
| +commands.inserthtml = {
|
| + preservesOverrides: true,
|
| + action: function(value) {
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "If the active range's start node is neither editable nor an editing
|
| + // host, return true."
|
| + if (!isEditable(getActiveRange().startContainer)
|
| + && !isEditingHost(getActiveRange().startContainer)) {
|
| + return true;
|
| + }
|
| +
|
| + // "Let frag be the result of calling createContextualFragment(value)
|
| + // on the active range."
|
| + var frag = getActiveRange().createContextualFragment(value);
|
| +
|
| + // "Let last child be the lastChild of frag."
|
| + var lastChild = frag.lastChild;
|
| +
|
| + // "If last child is null, return true."
|
| + if (!lastChild) {
|
| + return true;
|
| + }
|
| +
|
| + // "Let descendants be all descendants of frag."
|
| + var descendants = getDescendants(frag);
|
| +
|
| + // "If the active range's start node is a block node:"
|
| + if (isBlockNode(getActiveRange().startContainer)) {
|
| + // "Let collapsed block props be all editable collapsed block prop
|
| + // children of the active range's start node that have index
|
| + // greater than or equal to the active range's start offset."
|
| + //
|
| + // "For each node in collapsed block props, remove node from its
|
| + // parent."
|
| + [].filter.call(getActiveRange().startContainer.childNodes, function(node) {
|
| + return isEditable(node)
|
| + && isCollapsedBlockProp(node)
|
| + && getNodeIndex(node) >= getActiveRange().startOffset;
|
| + }).forEach(function(node) {
|
| + node.parentNode.removeChild(node);
|
| + });
|
| + }
|
| +
|
| + // "Call insertNode(frag) on the active range."
|
| + getActiveRange().insertNode(frag);
|
| +
|
| + // "If the active range's start node is a block node with no visible
|
| + // children, call createElement("br") on the context object and append
|
| + // the result as the last child of the active range's start node."
|
| + if (isBlockNode(getActiveRange().startContainer)
|
| + && ![].some.call(getActiveRange().startContainer.childNodes, isVisible)) {
|
| + getActiveRange().startContainer.appendChild(document.createElement("br"));
|
| + }
|
| +
|
| + // "Call collapse() on the context object's Selection, with last
|
| + // child's parent as the first argument and one plus its index as the
|
| + // second."
|
| + getActiveRange().setStart(lastChild.parentNode, 1 + getNodeIndex(lastChild));
|
| + getActiveRange().setEnd(lastChild.parentNode, 1 + getNodeIndex(lastChild));
|
| +
|
| + // "Fix disallowed ancestors of each member of descendants."
|
| + for (var i = 0; i < descendants.length; i++) {
|
| + fixDisallowedAncestors(descendants[i]);
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The insertImage command /////
|
| +//@{
|
| +commands.insertimage = {
|
| + preservesOverrides: true,
|
| + action: function(value) {
|
| + // "If value is the empty string, return false."
|
| + if (value === "") {
|
| + return false;
|
| + }
|
| +
|
| + // "Delete the selection, with strip wrappers false."
|
| + deleteSelection({stripWrappers: false});
|
| +
|
| + // "Let range be the active range."
|
| + var range = getActiveRange();
|
| +
|
| + // "If the active range's start node is neither editable nor an editing
|
| + // host, return true."
|
| + if (!isEditable(getActiveRange().startContainer)
|
| + && !isEditingHost(getActiveRange().startContainer)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If range's start node is a block node whose sole child is a br, and
|
| + // its start offset is 0, remove its start node's child from it."
|
| + if (isBlockNode(range.startContainer)
|
| + && range.startContainer.childNodes.length == 1
|
| + && isHtmlElement(range.startContainer.firstChild, "br")
|
| + && range.startOffset == 0) {
|
| + range.startContainer.removeChild(range.startContainer.firstChild);
|
| + }
|
| +
|
| + // "Let img be the result of calling createElement("img") on the
|
| + // context object."
|
| + var img = document.createElement("img");
|
| +
|
| + // "Run setAttribute("src", value) on img."
|
| + img.setAttribute("src", value);
|
| +
|
| + // "Run insertNode(img) on the range."
|
| + range.insertNode(img);
|
| +
|
| + // "Run collapse() on the Selection, with first argument equal to the
|
| + // parent of img and the second argument equal to one plus the index of
|
| + // img."
|
| + //
|
| + // Not everyone actually supports collapse(), so we do it manually
|
| + // instead. Also, we need to modify the actual range we're given as
|
| + // well, for the sake of autoimplementation.html's range-filling-in.
|
| + range.setStart(img.parentNode, 1 + getNodeIndex(img));
|
| + range.setEnd(img.parentNode, 1 + getNodeIndex(img));
|
| + getSelection().removeAllRanges();
|
| + getSelection().addRange(range);
|
| +
|
| + // IE adds width and height attributes for some reason, so remove those
|
| + // to actually do what the spec says.
|
| + img.removeAttribute("width");
|
| + img.removeAttribute("height");
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The insertLineBreak command /////
|
| +//@{
|
| +commands.insertlinebreak = {
|
| + preservesOverrides: true,
|
| + action: function(value) {
|
| + // "Delete the selection, with strip wrappers false."
|
| + deleteSelection({stripWrappers: false});
|
| +
|
| + // "If the active range's start node is neither editable nor an editing
|
| + // host, return true."
|
| + if (!isEditable(getActiveRange().startContainer)
|
| + && !isEditingHost(getActiveRange().startContainer)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If the active range's start node is an Element, and "br" is not an
|
| + // allowed child of it, return true."
|
| + if (getActiveRange().startContainer.nodeType == Node.ELEMENT_NODE
|
| + && !isAllowedChild("br", getActiveRange().startContainer)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If the active range's start node is not an Element, and "br" is not
|
| + // an allowed child of the active range's start node's parent, return
|
| + // true."
|
| + if (getActiveRange().startContainer.nodeType != Node.ELEMENT_NODE
|
| + && !isAllowedChild("br", getActiveRange().startContainer.parentNode)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If the active range's start node is a Text node and its start
|
| + // offset is zero, call collapse() on the context object's Selection,
|
| + // with first argument equal to the active range's start node's parent
|
| + // and second argument equal to the active range's start node's index."
|
| + if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
| + && getActiveRange().startOffset == 0) {
|
| + var newNode = getActiveRange().startContainer.parentNode;
|
| + var newOffset = getNodeIndex(getActiveRange().startContainer);
|
| + getSelection().collapse(newNode, newOffset);
|
| + getActiveRange().setStart(newNode, newOffset);
|
| + getActiveRange().setEnd(newNode, newOffset);
|
| + }
|
| +
|
| + // "If the active range's start node is a Text node and its start
|
| + // offset is the length of its start node, call collapse() on the
|
| + // context object's Selection, with first argument equal to the active
|
| + // range's start node's parent and second argument equal to one plus
|
| + // the active range's start node's index."
|
| + if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
| + && getActiveRange().startOffset == getNodeLength(getActiveRange().startContainer)) {
|
| + var newNode = getActiveRange().startContainer.parentNode;
|
| + var newOffset = 1 + getNodeIndex(getActiveRange().startContainer);
|
| + getSelection().collapse(newNode, newOffset);
|
| + getActiveRange().setStart(newNode, newOffset);
|
| + getActiveRange().setEnd(newNode, newOffset);
|
| + }
|
| +
|
| + // "Let br be the result of calling createElement("br") on the context
|
| + // object."
|
| + var br = document.createElement("br");
|
| +
|
| + // "Call insertNode(br) on the active range."
|
| + getActiveRange().insertNode(br);
|
| +
|
| + // "Call collapse() on the context object's Selection, with br's parent
|
| + // as the first argument and one plus br's index as the second
|
| + // argument."
|
| + getSelection().collapse(br.parentNode, 1 + getNodeIndex(br));
|
| + getActiveRange().setStart(br.parentNode, 1 + getNodeIndex(br));
|
| + getActiveRange().setEnd(br.parentNode, 1 + getNodeIndex(br));
|
| +
|
| + // "If br is a collapsed line break, call createElement("br") on the
|
| + // context object and let extra br be the result, then call
|
| + // insertNode(extra br) on the active range."
|
| + if (isCollapsedLineBreak(br)) {
|
| + getActiveRange().insertNode(document.createElement("br"));
|
| +
|
| + // Compensate for nonstandard implementations of insertNode
|
| + getSelection().collapse(br.parentNode, 1 + getNodeIndex(br));
|
| + getActiveRange().setStart(br.parentNode, 1 + getNodeIndex(br));
|
| + getActiveRange().setEnd(br.parentNode, 1 + getNodeIndex(br));
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The insertOrderedList command /////
|
| +//@{
|
| +commands.insertorderedlist = {
|
| + preservesOverrides: true,
|
| + // "Toggle lists with tag name "ol", then return true."
|
| + action: function() { toggleLists("ol"); return true },
|
| + // "True if the selection's list state is "mixed" or "mixed ol", false
|
| + // otherwise."
|
| + indeterm: function() { return /^mixed( ol)?$/.test(getSelectionListState()) },
|
| + // "True if the selection's list state is "ol", false otherwise."
|
| + state: function() { return getSelectionListState() == "ol" },
|
| +};
|
| +
|
| +//@}
|
| +///// The insertParagraph command /////
|
| +//@{
|
| +commands.insertparagraph = {
|
| + preservesOverrides: true,
|
| + action: function() {
|
| + // "Delete the selection."
|
| + deleteSelection();
|
| +
|
| + // "If the active range's start node is neither editable nor an editing
|
| + // host, return true."
|
| + if (!isEditable(getActiveRange().startContainer)
|
| + && !isEditingHost(getActiveRange().startContainer)) {
|
| + return true;
|
| + }
|
| +
|
| + // "Let node and offset be the active range's start node and offset."
|
| + var node = getActiveRange().startContainer;
|
| + var offset = getActiveRange().startOffset;
|
| +
|
| + // "If node is a Text node, and offset is neither 0 nor the length of
|
| + // node, call splitText(offset) on node."
|
| + if (node.nodeType == Node.TEXT_NODE
|
| + && offset != 0
|
| + && offset != getNodeLength(node)) {
|
| + node.splitText(offset);
|
| + }
|
| +
|
| + // "If node is a Text node and offset is its length, set offset to one
|
| + // plus the index of node, then set node to its parent."
|
| + if (node.nodeType == Node.TEXT_NODE
|
| + && offset == getNodeLength(node)) {
|
| + offset = 1 + getNodeIndex(node);
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "If node is a Text or Comment node, set offset to the index of node,
|
| + // then set node to its parent."
|
| + if (node.nodeType == Node.TEXT_NODE
|
| + || node.nodeType == Node.COMMENT_NODE) {
|
| + offset = getNodeIndex(node);
|
| + node = node.parentNode;
|
| + }
|
| +
|
| + // "Call collapse(node, offset) on the context object's Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setStart(node, offset);
|
| + getActiveRange().setEnd(node, offset);
|
| +
|
| + // "Let container equal node."
|
| + var container = node;
|
| +
|
| + // "While container is not a single-line container, and container's
|
| + // parent is editable and in the same editing host as node, set
|
| + // container to its parent."
|
| + while (!isSingleLineContainer(container)
|
| + && isEditable(container.parentNode)
|
| + && inSameEditingHost(node, container.parentNode)) {
|
| + container = container.parentNode;
|
| + }
|
| +
|
| + // "If container is an editable single-line container in the same
|
| + // editing host as node, and its local name is "p" or "div":"
|
| + if (isEditable(container)
|
| + && isSingleLineContainer(container)
|
| + && inSameEditingHost(node, container.parentNode)
|
| + && (container.tagName == "P" || container.tagName == "DIV")) {
|
| + // "Let outer container equal container."
|
| + var outerContainer = container;
|
| +
|
| + // "While outer container is not a dd or dt or li, and outer
|
| + // container's parent is editable, set outer container to its
|
| + // parent."
|
| + while (!isHtmlElement(outerContainer, ["dd", "dt", "li"])
|
| + && isEditable(outerContainer.parentNode)) {
|
| + outerContainer = outerContainer.parentNode;
|
| + }
|
| +
|
| + // "If outer container is a dd or dt or li, set container to outer
|
| + // container."
|
| + if (isHtmlElement(outerContainer, ["dd", "dt", "li"])) {
|
| + container = outerContainer;
|
| + }
|
| + }
|
| +
|
| + // "If container is not editable or not in the same editing host as
|
| + // node or is not a single-line container:"
|
| + if (!isEditable(container)
|
| + || !inSameEditingHost(container, node)
|
| + || !isSingleLineContainer(container)) {
|
| + // "Let tag be the default single-line container name."
|
| + var tag = defaultSingleLineContainerName;
|
| +
|
| + // "Block-extend the active range, and let new range be the
|
| + // result."
|
| + var newRange = blockExtend(getActiveRange());
|
| +
|
| + // "Let node list be a list of nodes, initially empty."
|
| + //
|
| + // "Append to node list the first node in tree order that is
|
| + // contained in new range and is an allowed child of "p", if any."
|
| + var nodeList = getContainedNodes(newRange, function(node) { return isAllowedChild(node, "p") })
|
| + .slice(0, 1);
|
| +
|
| + // "If node list is empty:"
|
| + if (!nodeList.length) {
|
| + // "If tag is not an allowed child of the active range's start
|
| + // node, return true."
|
| + if (!isAllowedChild(tag, getActiveRange().startContainer)) {
|
| + return true;
|
| + }
|
| +
|
| + // "Set container to the result of calling createElement(tag)
|
| + // on the context object."
|
| + container = document.createElement(tag);
|
| +
|
| + // "Call insertNode(container) on the active range."
|
| + getActiveRange().insertNode(container);
|
| +
|
| + // "Call createElement("br") on the context object, and append
|
| + // the result as the last child of container."
|
| + container.appendChild(document.createElement("br"));
|
| +
|
| + // "Call collapse(container, 0) on the context object's
|
| + // Selection."
|
| + getSelection().collapse(container, 0);
|
| + getActiveRange().setStart(container, 0);
|
| + getActiveRange().setEnd(container, 0);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "While the nextSibling of the last member of node list is not
|
| + // null and is an allowed child of "p", append it to node list."
|
| + while (nodeList[nodeList.length - 1].nextSibling
|
| + && isAllowedChild(nodeList[nodeList.length - 1].nextSibling, "p")) {
|
| + nodeList.push(nodeList[nodeList.length - 1].nextSibling);
|
| + }
|
| +
|
| + // "Wrap node list, with sibling criteria returning false and new
|
| + // parent instructions returning the result of calling
|
| + // createElement(tag) on the context object. Set container to the
|
| + // result."
|
| + container = wrap(nodeList,
|
| + function() { return false },
|
| + function() { return document.createElement(tag) }
|
| + );
|
| + }
|
| +
|
| + // "If container's local name is "address", "listing", or "pre":"
|
| + if (container.tagName == "ADDRESS"
|
| + || container.tagName == "LISTING"
|
| + || container.tagName == "PRE") {
|
| + // "Let br be the result of calling createElement("br") on the
|
| + // context object."
|
| + var br = document.createElement("br");
|
| +
|
| + // "Call insertNode(br) on the active range."
|
| + getActiveRange().insertNode(br);
|
| +
|
| + // "Call collapse(node, offset + 1) on the context object's
|
| + // Selection."
|
| + getSelection().collapse(node, offset + 1);
|
| + getActiveRange().setStart(node, offset + 1);
|
| + getActiveRange().setEnd(node, offset + 1);
|
| +
|
| + // "If br is the last descendant of container, let br be the result
|
| + // of calling createElement("br") on the context object, then call
|
| + // insertNode(br) on the active range."
|
| + //
|
| + // Work around browser bugs: some browsers select the
|
| + // newly-inserted node, not per spec.
|
| + if (!isDescendant(nextNode(br), container)) {
|
| + getActiveRange().insertNode(document.createElement("br"));
|
| + getSelection().collapse(node, offset + 1);
|
| + getActiveRange().setEnd(node, offset + 1);
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "If container's local name is "li", "dt", or "dd"; and either it has
|
| + // no children or it has a single child and that child is a br:"
|
| + if (["LI", "DT", "DD"].indexOf(container.tagName) != -1
|
| + && (!container.hasChildNodes()
|
| + || (container.childNodes.length == 1
|
| + && isHtmlElement(container.firstChild, "br")))) {
|
| + // "Split the parent of the one-node list consisting of container."
|
| + splitParent([container]);
|
| +
|
| + // "If container has no children, call createElement("br") on the
|
| + // context object and append the result as the last child of
|
| + // container."
|
| + if (!container.hasChildNodes()) {
|
| + container.appendChild(document.createElement("br"));
|
| + }
|
| +
|
| + // "If container is a dd or dt, and it is not an allowed child of
|
| + // any of its ancestors in the same editing host, set the tag name
|
| + // of container to the default single-line container name and let
|
| + // container be the result."
|
| + if (isHtmlElement(container, ["dd", "dt"])
|
| + && getAncestors(container).every(function(ancestor) {
|
| + return !inSameEditingHost(container, ancestor)
|
| + || !isAllowedChild(container, ancestor)
|
| + })) {
|
| + container = setTagName(container, defaultSingleLineContainerName);
|
| + }
|
| +
|
| + // "Fix disallowed ancestors of container."
|
| + fixDisallowedAncestors(container);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "Let new line range be a new range whose start is the same as
|
| + // the active range's, and whose end is (container, length of
|
| + // container)."
|
| + var newLineRange = document.createRange();
|
| + newLineRange.setStart(getActiveRange().startContainer, getActiveRange().startOffset);
|
| + newLineRange.setEnd(container, getNodeLength(container));
|
| +
|
| + // "While new line range's start offset is zero and its start node is
|
| + // not a prohibited paragraph child, set its start to (parent of start
|
| + // node, index of start node)."
|
| + while (newLineRange.startOffset == 0
|
| + && !isProhibitedParagraphChild(newLineRange.startContainer)) {
|
| + newLineRange.setStart(newLineRange.startContainer.parentNode, getNodeIndex(newLineRange.startContainer));
|
| + }
|
| +
|
| + // "While new line range's start offset is the length of its start node
|
| + // and its start node is not a prohibited paragraph child, set its
|
| + // start to (parent of start node, 1 + index of start node)."
|
| + while (newLineRange.startOffset == getNodeLength(newLineRange.startContainer)
|
| + && !isProhibitedParagraphChild(newLineRange.startContainer)) {
|
| + newLineRange.setStart(newLineRange.startContainer.parentNode, 1 + getNodeIndex(newLineRange.startContainer));
|
| + }
|
| +
|
| + // "Let end of line be true if new line range contains either nothing
|
| + // or a single br, and false otherwise."
|
| + var containedInNewLineRange = getContainedNodes(newLineRange);
|
| + var endOfLine = !containedInNewLineRange.length
|
| + || (containedInNewLineRange.length == 1
|
| + && isHtmlElement(containedInNewLineRange[0], "br"));
|
| +
|
| + // "If the local name of container is "h1", "h2", "h3", "h4", "h5", or
|
| + // "h6", and end of line is true, let new container name be the default
|
| + // single-line container name."
|
| + var newContainerName;
|
| + if (/^H[1-6]$/.test(container.tagName)
|
| + && endOfLine) {
|
| + newContainerName = defaultSingleLineContainerName;
|
| +
|
| + // "Otherwise, if the local name of container is "dt" and end of line
|
| + // is true, let new container name be "dd"."
|
| + } else if (container.tagName == "DT"
|
| + && endOfLine) {
|
| + newContainerName = "dd";
|
| +
|
| + // "Otherwise, if the local name of container is "dd" and end of line
|
| + // is true, let new container name be "dt"."
|
| + } else if (container.tagName == "DD"
|
| + && endOfLine) {
|
| + newContainerName = "dt";
|
| +
|
| + // "Otherwise, let new container name be the local name of container."
|
| + } else {
|
| + newContainerName = container.tagName.toLowerCase();
|
| + }
|
| +
|
| + // "Let new container be the result of calling createElement(new
|
| + // container name) on the context object."
|
| + var newContainer = document.createElement(newContainerName);
|
| +
|
| + // "Copy all attributes of container to new container."
|
| + for (var i = 0; i < container.attributes.length; i++) {
|
| + newContainer.setAttributeNS(container.attributes[i].namespaceURI, container.attributes[i].name, container.attributes[i].value);
|
| + }
|
| +
|
| + // "If new container has an id attribute, unset it."
|
| + newContainer.removeAttribute("id");
|
| +
|
| + // "Insert new container into the parent of container immediately after
|
| + // container."
|
| + container.parentNode.insertBefore(newContainer, container.nextSibling);
|
| +
|
| + // "Let contained nodes be all nodes contained in new line range."
|
| + var containedNodes = getAllContainedNodes(newLineRange);
|
| +
|
| + // "Let frag be the result of calling extractContents() on new line
|
| + // range."
|
| + var frag = newLineRange.extractContents();
|
| +
|
| + // "Unset the id attribute (if any) of each Element descendant of frag
|
| + // that is not in contained nodes."
|
| + var descendants = getDescendants(frag);
|
| + for (var i = 0; i < descendants.length; i++) {
|
| + if (descendants[i].nodeType == Node.ELEMENT_NODE
|
| + && containedNodes.indexOf(descendants[i]) == -1) {
|
| + descendants[i].removeAttribute("id");
|
| + }
|
| + }
|
| +
|
| + // "Call appendChild(frag) on new container."
|
| + newContainer.appendChild(frag);
|
| +
|
| + // "While container's lastChild is a prohibited paragraph child, set
|
| + // container to its lastChild."
|
| + while (isProhibitedParagraphChild(container.lastChild)) {
|
| + container = container.lastChild;
|
| + }
|
| +
|
| + // "While new container's lastChild is a prohibited paragraph child,
|
| + // set new container to its lastChild."
|
| + while (isProhibitedParagraphChild(newContainer.lastChild)) {
|
| + newContainer = newContainer.lastChild;
|
| + }
|
| +
|
| + // "If container has no visible children, call createElement("br") on
|
| + // the context object, and append the result as the last child of
|
| + // container."
|
| + if (![].some.call(container.childNodes, isVisible)) {
|
| + container.appendChild(document.createElement("br"));
|
| + }
|
| +
|
| + // "If new container has no visible children, call createElement("br")
|
| + // on the context object, and append the result as the last child of
|
| + // new container."
|
| + if (![].some.call(newContainer.childNodes, isVisible)) {
|
| + newContainer.appendChild(document.createElement("br"));
|
| + }
|
| +
|
| + // "Call collapse(new container, 0) on the context object's Selection."
|
| + getSelection().collapse(newContainer, 0);
|
| + getActiveRange().setStart(newContainer, 0);
|
| + getActiveRange().setEnd(newContainer, 0);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The insertText command /////
|
| +//@{
|
| +commands.inserttext = {
|
| + action: function(value) {
|
| + // "Delete the selection, with strip wrappers false."
|
| + deleteSelection({stripWrappers: false});
|
| +
|
| + // "If the active range's start node is neither editable nor an editing
|
| + // host, return true."
|
| + if (!isEditable(getActiveRange().startContainer)
|
| + && !isEditingHost(getActiveRange().startContainer)) {
|
| + return true;
|
| + }
|
| +
|
| + // "If value's length is greater than one:"
|
| + if (value.length > 1) {
|
| + // "For each element el in value, take the action for the
|
| + // insertText command, with value equal to el."
|
| + for (var i = 0; i < value.length; i++) {
|
| + commands.inserttext.action(value[i]);
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +
|
| + // "If value is the empty string, return true."
|
| + if (value == "") {
|
| + return true;
|
| + }
|
| +
|
| + // "If value is a newline (U+00A0), take the action for the
|
| + // insertParagraph command and return true."
|
| + if (value == "\n") {
|
| + commands.insertparagraph.action();
|
| + return true;
|
| + }
|
| +
|
| + // "Let node and offset be the active range's start node and offset."
|
| + var node = getActiveRange().startContainer;
|
| + var offset = getActiveRange().startOffset;
|
| +
|
| + // "If node has a child whose index is offset − 1, and that child is a
|
| + // Text node, set node to that child, then set offset to node's
|
| + // length."
|
| + if (0 <= offset - 1
|
| + && offset - 1 < node.childNodes.length
|
| + && node.childNodes[offset - 1].nodeType == Node.TEXT_NODE) {
|
| + node = node.childNodes[offset - 1];
|
| + offset = getNodeLength(node);
|
| + }
|
| +
|
| + // "If node has a child whose index is offset, and that child is a Text
|
| + // node, set node to that child, then set offset to zero."
|
| + if (0 <= offset
|
| + && offset < node.childNodes.length
|
| + && node.childNodes[offset].nodeType == Node.TEXT_NODE) {
|
| + node = node.childNodes[offset];
|
| + offset = 0;
|
| + }
|
| +
|
| + // "Record current overrides, and let overrides be the result."
|
| + var overrides = recordCurrentOverrides();
|
| +
|
| + // "Call collapse(node, offset) on the context object's Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setStart(node, offset);
|
| + getActiveRange().setEnd(node, offset);
|
| +
|
| + // "Canonicalize whitespace at (node, offset)."
|
| + canonicalizeWhitespace(node, offset);
|
| +
|
| + // "Let (node, offset) be the active range's start."
|
| + node = getActiveRange().startContainer;
|
| + offset = getActiveRange().startOffset;
|
| +
|
| + // "If node is a Text node:"
|
| + if (node.nodeType == Node.TEXT_NODE) {
|
| + // "Call insertData(offset, value) on node."
|
| + node.insertData(offset, value);
|
| +
|
| + // "Call collapse(node, offset) on the context object's Selection."
|
| + getSelection().collapse(node, offset);
|
| + getActiveRange().setStart(node, offset);
|
| +
|
| + // "Call extend(node, offset + 1) on the context object's
|
| + // Selection."
|
| + //
|
| + // Work around WebKit bug: the extend() can throw if the text we're
|
| + // adding is trailing whitespace.
|
| + try { getSelection().extend(node, offset + 1); } catch(e) {}
|
| + getActiveRange().setEnd(node, offset + 1);
|
| +
|
| + // "Otherwise:"
|
| + } else {
|
| + // "If node has only one child, which is a collapsed line break,
|
| + // remove its child from it."
|
| + //
|
| + // FIXME: IE incorrectly returns false here instead of true
|
| + // sometimes?
|
| + if (node.childNodes.length == 1
|
| + && isCollapsedLineBreak(node.firstChild)) {
|
| + node.removeChild(node.firstChild);
|
| + }
|
| +
|
| + // "Let text be the result of calling createTextNode(value) on the
|
| + // context object."
|
| + var text = document.createTextNode(value);
|
| +
|
| + // "Call insertNode(text) on the active range."
|
| + getActiveRange().insertNode(text);
|
| +
|
| + // "Call collapse(text, 0) on the context object's Selection."
|
| + getSelection().collapse(text, 0);
|
| + getActiveRange().setStart(text, 0);
|
| +
|
| + // "Call extend(text, 1) on the context object's Selection."
|
| + getSelection().extend(text, 1);
|
| + getActiveRange().setEnd(text, 1);
|
| + }
|
| +
|
| + // "Restore states and values from overrides."
|
| + restoreStatesAndValues(overrides);
|
| +
|
| + // "Canonicalize whitespace at the active range's start, with fix
|
| + // collapsed space false."
|
| + canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);
|
| +
|
| + // "Canonicalize whitespace at the active range's end, with fix
|
| + // collapsed space false."
|
| + canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);
|
| +
|
| + // "If value is a space character, autolink the active range's start."
|
| + if (/^[ \t\n\f\r]$/.test(value)) {
|
| + autolink(getActiveRange().startContainer, getActiveRange().startOffset);
|
| + }
|
| +
|
| + // "Call collapseToEnd() on the context object's Selection."
|
| + //
|
| + // Work around WebKit bug: sometimes it blows up the selection and
|
| + // throws, which we don't want.
|
| + try { getSelection().collapseToEnd(); } catch(e) {}
|
| + getActiveRange().collapse(false);
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The insertUnorderedList command /////
|
| +//@{
|
| +commands.insertunorderedlist = {
|
| + preservesOverrides: true,
|
| + // "Toggle lists with tag name "ul", then return true."
|
| + action: function() { toggleLists("ul"); return true },
|
| + // "True if the selection's list state is "mixed" or "mixed ul", false
|
| + // otherwise."
|
| + indeterm: function() { return /^mixed( ul)?$/.test(getSelectionListState()) },
|
| + // "True if the selection's list state is "ul", false otherwise."
|
| + state: function() { return getSelectionListState() == "ul" },
|
| +};
|
| +
|
| +//@}
|
| +///// The justifyCenter command /////
|
| +//@{
|
| +commands.justifycenter = {
|
| + preservesOverrides: true,
|
| + // "Justify the selection with alignment "center", then return true."
|
| + action: function() { justifySelection("center"); return true },
|
| + indeterm: function() {
|
| + // "Return false if the active range is null. Otherwise, block-extend
|
| + // the active range. Return true if among visible editable nodes that
|
| + // are contained in the result and have no children, at least one has
|
| + // alignment value "center" and at least one does not. Otherwise return
|
| + // false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + return nodes.some(function(node) { return getAlignmentValue(node) == "center" })
|
| + && nodes.some(function(node) { return getAlignmentValue(node) != "center" });
|
| + }, state: function() {
|
| + // "Return false if the active range is null. Otherwise, block-extend
|
| + // the active range. Return true if there is at least one visible
|
| + // editable node that is contained in the result and has no children,
|
| + // and all such nodes have alignment value "center". Otherwise return
|
| + // false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + return nodes.length
|
| + && nodes.every(function(node) { return getAlignmentValue(node) == "center" });
|
| + }, value: function() {
|
| + // "Return the empty string if the active range is null. Otherwise,
|
| + // block-extend the active range, and return the alignment value of the
|
| + // first visible editable node that is contained in the result and has
|
| + // no children. If there is no such node, return "left"."
|
| + if (!getActiveRange()) {
|
| + return "";
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + if (nodes.length) {
|
| + return getAlignmentValue(nodes[0]);
|
| + } else {
|
| + return "left";
|
| + }
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The justifyFull command /////
|
| +//@{
|
| +commands.justifyfull = {
|
| + preservesOverrides: true,
|
| + // "Justify the selection with alignment "justify", then return true."
|
| + action: function() { justifySelection("justify"); return true },
|
| + indeterm: function() {
|
| + // "Return false if the active range is null. Otherwise, block-extend
|
| + // the active range. Return true if among visible editable nodes that
|
| + // are contained in the result and have no children, at least one has
|
| + // alignment value "justify" and at least one does not. Otherwise
|
| + // return false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + return nodes.some(function(node) { return getAlignmentValue(node) == "justify" })
|
| + && nodes.some(function(node) { return getAlignmentValue(node) != "justify" });
|
| + }, state: function() {
|
| + // "Return false if the active range is null. Otherwise, block-extend
|
| + // the active range. Return true if there is at least one visible
|
| + // editable node that is contained in the result and has no children,
|
| + // and all such nodes have alignment value "justify". Otherwise return
|
| + // false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + return nodes.length
|
| + && nodes.every(function(node) { return getAlignmentValue(node) == "justify" });
|
| + }, value: function() {
|
| + // "Return the empty string if the active range is null. Otherwise,
|
| + // block-extend the active range, and return the alignment value of the
|
| + // first visible editable node that is contained in the result and has
|
| + // no children. If there is no such node, return "left"."
|
| + if (!getActiveRange()) {
|
| + return "";
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + if (nodes.length) {
|
| + return getAlignmentValue(nodes[0]);
|
| + } else {
|
| + return "left";
|
| + }
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The justifyLeft command /////
|
| +//@{
|
| +commands.justifyleft = {
|
| + preservesOverrides: true,
|
| + // "Justify the selection with alignment "left", then return true."
|
| + action: function() { justifySelection("left"); return true },
|
| + indeterm: function() {
|
| + // "Return false if the active range is null. Otherwise, block-extend
|
| + // the active range. Return true if among visible editable nodes that
|
| + // are contained in the result and have no children, at least one has
|
| + // alignment value "left" and at least one does not. Otherwise return
|
| + // false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + return nodes.some(function(node) { return getAlignmentValue(node) == "left" })
|
| + && nodes.some(function(node) { return getAlignmentValue(node) != "left" });
|
| + }, state: function() {
|
| + // "Return false if the active range is null. Otherwise, block-extend
|
| + // the active range. Return true if there is at least one visible
|
| + // editable node that is contained in the result and has no children,
|
| + // and all such nodes have alignment value "left". Otherwise return
|
| + // false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + return nodes.length
|
| + && nodes.every(function(node) { return getAlignmentValue(node) == "left" });
|
| + }, value: function() {
|
| + // "Return the empty string if the active range is null. Otherwise,
|
| + // block-extend the active range, and return the alignment value of the
|
| + // first visible editable node that is contained in the result and has
|
| + // no children. If there is no such node, return "left"."
|
| + if (!getActiveRange()) {
|
| + return "";
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + if (nodes.length) {
|
| + return getAlignmentValue(nodes[0]);
|
| + } else {
|
| + return "left";
|
| + }
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The justifyRight command /////
|
| +//@{
|
| +commands.justifyright = {
|
| + preservesOverrides: true,
|
| + // "Justify the selection with alignment "right", then return true."
|
| + action: function() { justifySelection("right"); return true },
|
| + indeterm: function() {
|
| + // "Return false if the active range is null. Otherwise, block-extend
|
| + // the active range. Return true if among visible editable nodes that
|
| + // are contained in the result and have no children, at least one has
|
| + // alignment value "right" and at least one does not. Otherwise return
|
| + // false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + return nodes.some(function(node) { return getAlignmentValue(node) == "right" })
|
| + && nodes.some(function(node) { return getAlignmentValue(node) != "right" });
|
| + }, state: function() {
|
| + // "Return false if the active range is null. Otherwise, block-extend
|
| + // the active range. Return true if there is at least one visible
|
| + // editable node that is contained in the result and has no children,
|
| + // and all such nodes have alignment value "right". Otherwise return
|
| + // false."
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + return nodes.length
|
| + && nodes.every(function(node) { return getAlignmentValue(node) == "right" });
|
| + }, value: function() {
|
| + // "Return the empty string if the active range is null. Otherwise,
|
| + // block-extend the active range, and return the alignment value of the
|
| + // first visible editable node that is contained in the result and has
|
| + // no children. If there is no such node, return "left"."
|
| + if (!getActiveRange()) {
|
| + return "";
|
| + }
|
| + var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
| + return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
| + });
|
| + if (nodes.length) {
|
| + return getAlignmentValue(nodes[0]);
|
| + } else {
|
| + return "left";
|
| + }
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The outdent command /////
|
| +//@{
|
| +commands.outdent = {
|
| + preservesOverrides: true,
|
| + action: function() {
|
| + // "Let items be a list of all lis that are ancestor containers of the
|
| + // range's start and/or end node."
|
| + //
|
| + // It's annoying to get this in tree order using functional stuff
|
| + // without doing getDescendants(document), which is slow, so I do it
|
| + // imperatively.
|
| + var items = [];
|
| + (function(){
|
| + for (
|
| + var ancestorContainer = getActiveRange().endContainer;
|
| + ancestorContainer != getActiveRange().commonAncestorContainer;
|
| + ancestorContainer = ancestorContainer.parentNode
|
| + ) {
|
| + if (isHtmlElement(ancestorContainer, "li")) {
|
| + items.unshift(ancestorContainer);
|
| + }
|
| + }
|
| + for (
|
| + var ancestorContainer = getActiveRange().startContainer;
|
| + ancestorContainer;
|
| + ancestorContainer = ancestorContainer.parentNode
|
| + ) {
|
| + if (isHtmlElement(ancestorContainer, "li")) {
|
| + items.unshift(ancestorContainer);
|
| + }
|
| + }
|
| + })();
|
| +
|
| + // "For each item in items, normalize sublists of item."
|
| + items.forEach(normalizeSublists);
|
| +
|
| + // "Block-extend the active range, and let new range be the result."
|
| + var newRange = blockExtend(getActiveRange());
|
| +
|
| + // "Let node list be a list of nodes, initially empty."
|
| + //
|
| + // "For each node node contained in new range, append node to node list
|
| + // if the last member of node list (if any) is not an ancestor of node;
|
| + // node is editable; and either node has no editable descendants, or is
|
| + // an ol or ul, or is an li whose parent is an ol or ul."
|
| + var nodeList = getContainedNodes(newRange, function(node) {
|
| + return isEditable(node)
|
| + && (!getDescendants(node).some(isEditable)
|
| + || isHtmlElement(node, ["ol", "ul"])
|
| + || (isHtmlElement(node, "li") && isHtmlElement(node.parentNode, ["ol", "ul"])));
|
| + });
|
| +
|
| + // "While node list is not empty:"
|
| + while (nodeList.length) {
|
| + // "While the first member of node list is an ol or ul or is not
|
| + // the child of an ol or ul, outdent it and remove it from node
|
| + // list."
|
| + while (nodeList.length
|
| + && (isHtmlElement(nodeList[0], ["OL", "UL"])
|
| + || !isHtmlElement(nodeList[0].parentNode, ["OL", "UL"]))) {
|
| + outdentNode(nodeList.shift());
|
| + }
|
| +
|
| + // "If node list is empty, break from these substeps."
|
| + if (!nodeList.length) {
|
| + break;
|
| + }
|
| +
|
| + // "Let sublist be a list of nodes, initially empty."
|
| + var sublist = [];
|
| +
|
| + // "Remove the first member of node list and append it to sublist."
|
| + sublist.push(nodeList.shift());
|
| +
|
| + // "While the first member of node list is the nextSibling of the
|
| + // last member of sublist, and the first member of node list is not
|
| + // an ol or ul, remove the first member of node list and append it
|
| + // to sublist."
|
| + while (nodeList.length
|
| + && nodeList[0] == sublist[sublist.length - 1].nextSibling
|
| + && !isHtmlElement(nodeList[0], ["OL", "UL"])) {
|
| + sublist.push(nodeList.shift());
|
| + }
|
| +
|
| + // "Record the values of sublist, and let values be the result."
|
| + var values = recordValues(sublist);
|
| +
|
| + // "Split the parent of sublist, with new parent null."
|
| + splitParent(sublist);
|
| +
|
| + // "Fix disallowed ancestors of each member of sublist."
|
| + sublist.forEach(fixDisallowedAncestors);
|
| +
|
| + // "Restore the values from values."
|
| + restoreValues(values);
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +
|
| +//////////////////////////////////
|
| +///// Miscellaneous commands /////
|
| +//////////////////////////////////
|
| +
|
| +///// The defaultParagraphSeparator command /////
|
| +//@{
|
| +commands.defaultparagraphseparator = {
|
| + action: function(value) {
|
| + // "Let value be converted to ASCII lowercase. If value is then equal
|
| + // to "p" or "div", set the context object's default single-line
|
| + // container name to value and return true. Otherwise, return false."
|
| + value = value.toLowerCase();
|
| + if (value == "p" || value == "div") {
|
| + defaultSingleLineContainerName = value;
|
| + return true;
|
| + }
|
| + return false;
|
| + }, value: function() {
|
| + // "Return the context object's default single-line container name."
|
| + return defaultSingleLineContainerName;
|
| + },
|
| +};
|
| +
|
| +//@}
|
| +///// The selectAll command /////
|
| +//@{
|
| +commands.selectall = {
|
| + // Note, this ignores the whole globalRange/getActiveRange() thing and
|
| + // works with actual selections. Not suitable for autoimplementation.html.
|
| + action: function() {
|
| + // "Let target be the body element of the context object."
|
| + var target = document.body;
|
| +
|
| + // "If target is null, let target be the context object's
|
| + // documentElement."
|
| + if (!target) {
|
| + target = document.documentElement;
|
| + }
|
| +
|
| + // "If target is null, call getSelection() on the context object, and
|
| + // call removeAllRanges() on the result."
|
| + if (!target) {
|
| + getSelection().removeAllRanges();
|
| +
|
| + // "Otherwise, call getSelection() on the context object, and call
|
| + // selectAllChildren(target) on the result."
|
| + } else {
|
| + getSelection().selectAllChildren(target);
|
| + }
|
| +
|
| + // "Return true."
|
| + return true;
|
| + }
|
| +};
|
| +
|
| +//@}
|
| +///// The styleWithCSS command /////
|
| +//@{
|
| +commands.stylewithcss = {
|
| + action: function(value) {
|
| + // "If value is an ASCII case-insensitive match for the string
|
| + // "false", set the CSS styling flag to false. Otherwise, set the
|
| + // CSS styling flag to true. Either way, return true."
|
| + cssStylingFlag = String(value).toLowerCase() != "false";
|
| + return true;
|
| + }, state: function() { return cssStylingFlag }
|
| +};
|
| +
|
| +//@}
|
| +///// The useCSS command /////
|
| +//@{
|
| +commands.usecss = {
|
| + action: function(value) {
|
| + // "If value is an ASCII case-insensitive match for the string "false",
|
| + // set the CSS styling flag to true. Otherwise, set the CSS styling
|
| + // flag to false. Either way, return true."
|
| + cssStylingFlag = String(value).toLowerCase() == "false";
|
| + return true;
|
| + }
|
| +};
|
| +//@}
|
| +
|
| +// Some final setup
|
| +//@{
|
| +(function() {
|
| +// Opera 11.50 doesn't implement Object.keys, so I have to make an explicit
|
| +// temporary, which means I need an extra closure to not leak the temporaries
|
| +// into the global namespace. >:(
|
| +var commandNames = [];
|
| +for (var command in commands) {
|
| + commandNames.push(command);
|
| +}
|
| +commandNames.forEach(function(command) {
|
| + // "If a command does not have a relevant CSS property specified, it
|
| + // defaults to null."
|
| + if (!("relevantCssProperty" in commands[command])) {
|
| + commands[command].relevantCssProperty = null;
|
| + }
|
| +
|
| + // "If a command has inline command activated values defined but nothing
|
| + // else defines when it is indeterminate, it is indeterminate if among
|
| + // formattable nodes effectively contained in the active range, there is at
|
| + // least one whose effective command value is one of the given values and
|
| + // at least one whose effective command value is not one of the given
|
| + // values."
|
| + if ("inlineCommandActivatedValues" in commands[command]
|
| + && !("indeterm" in commands[command])) {
|
| + commands[command].indeterm = function() {
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| +
|
| + var values = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)
|
| + .map(function(node) { return getEffectiveCommandValue(node, command) });
|
| +
|
| + var matchingValues = values.filter(function(value) {
|
| + return commands[command].inlineCommandActivatedValues.indexOf(value) != -1;
|
| + });
|
| +
|
| + return matchingValues.length >= 1
|
| + && values.length - matchingValues.length >= 1;
|
| + };
|
| + }
|
| +
|
| + // "If a command has inline command activated values defined, its state is
|
| + // true if either no formattable node is effectively contained in the
|
| + // active range, and the active range's start node's effective command
|
| + // value is one of the given values; or if there is at least one
|
| + // formattable node effectively contained in the active range, and all of
|
| + // them have an effective command value equal to one of the given values."
|
| + if ("inlineCommandActivatedValues" in commands[command]) {
|
| + commands[command].state = function() {
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| +
|
| + var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
|
| +
|
| + if (nodes.length == 0) {
|
| + return commands[command].inlineCommandActivatedValues
|
| + .indexOf(getEffectiveCommandValue(getActiveRange().startContainer, command)) != -1;
|
| + } else {
|
| + return nodes.every(function(node) {
|
| + return commands[command].inlineCommandActivatedValues
|
| + .indexOf(getEffectiveCommandValue(node, command)) != -1;
|
| + });
|
| + }
|
| + };
|
| + }
|
| +
|
| + // "If a command is a standard inline value command, it is indeterminate if
|
| + // among formattable nodes that are effectively contained in the active
|
| + // range, there are two that have distinct effective command values. Its
|
| + // value is the effective command value of the first formattable node that
|
| + // is effectively contained in the active range; or if there is no such
|
| + // node, the effective command value of the active range's start node; or
|
| + // if that is null, the empty string."
|
| + if ("standardInlineValueCommand" in commands[command]) {
|
| + commands[command].indeterm = function() {
|
| + if (!getActiveRange()) {
|
| + return false;
|
| + }
|
| +
|
| + var values = getAllEffectivelyContainedNodes(getActiveRange())
|
| + .filter(isFormattableNode)
|
| + .map(function(node) { return getEffectiveCommandValue(node, command) });
|
| + for (var i = 1; i < values.length; i++) {
|
| + if (values[i] != values[i - 1]) {
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + };
|
| +
|
| + commands[command].value = function() {
|
| + if (!getActiveRange()) {
|
| + return "";
|
| + }
|
| +
|
| + var refNode = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)[0];
|
| +
|
| + if (typeof refNode == "undefined") {
|
| + refNode = getActiveRange().startContainer;
|
| + }
|
| +
|
| + var ret = getEffectiveCommandValue(refNode, command);
|
| + if (ret === null) {
|
| + return "";
|
| + }
|
| + return ret;
|
| + };
|
| + }
|
| +
|
| + // "If a command preserves overrides, then before taking its action, the
|
| + // user agent must record current overrides. After taking the action, if
|
| + // the active range is collapsed, it must restore states and values from
|
| + // the recorded list."
|
| + if ("preservesOverrides" in commands[command]) {
|
| + var oldAction = commands[command].action;
|
| +
|
| + commands[command].action = function(value) {
|
| + var overrides = recordCurrentOverrides();
|
| + var ret = oldAction(value);
|
| + if (getActiveRange().collapsed) {
|
| + restoreStatesAndValues(overrides);
|
| + }
|
| + return ret;
|
| + };
|
| + }
|
| +});
|
| +})();
|
| +//@}
|
| +
|
| +// vim: foldmarker=@{,@} foldmethod=marker
|
|
|
Chromium Code Reviews
Issue 2630243004:
Manually import wpt/editing and wpt/selection/ (Closed)
