Index: Source/devtools/front_end/cm/codemirror.js |
diff --git a/Source/devtools/front_end/cm/codemirror.js b/Source/devtools/front_end/cm/codemirror.js |
index c7a5c6dd1c5d2a74072ff6dbef6ff06061ed6003..c3205cc189d4d6b41da5ce87be05d58aa4c78e5b 100644 |
--- a/Source/devtools/front_end/cm/codemirror.js |
+++ b/Source/devtools/front_end/cm/codemirror.js |
@@ -1,24 +1,36 @@ |
-// CodeMirror is the only global var we claim |
-window.CodeMirror = (function() { |
+// This is CodeMirror (http://codemirror.net), a code editor |
+// implemented in JavaScript on top of the browser's DOM. |
+// |
+// You can find some technical background for some of the code below |
+// at http://marijnhaverbeke.nl/blog/#cm-internals . |
+ |
+(function(mod) { |
+ if (typeof exports == "object" && typeof module == "object") // CommonJS |
+ module.exports = mod(); |
+ else if (typeof define == "function" && define.amd) // AMD |
+ return define([], mod); |
+ else // Plain browser env |
+ this.CodeMirror = mod(); |
+})(function() { |
"use strict"; |
// BROWSER SNIFFING |
- // Crude, but necessary to handle a number of hard-to-feature-detect |
- // bugs and behavior differences. |
+ // Kludges for bugs and behavior differences that can't be feature |
+ // detected are enabled based on userAgent etc sniffing. |
+ |
var gecko = /gecko\/\d/i.test(navigator.userAgent); |
- // IE11 currently doesn't count as 'ie', since it has almost none of |
- // the same bugs as earlier versions. Use ie_gt10 to handle |
- // incompatibilities in that version. |
- var old_ie = /MSIE \d/.test(navigator.userAgent); |
- var ie_lt8 = old_ie && (document.documentMode == null || document.documentMode < 8); |
- var ie_lt9 = old_ie && (document.documentMode == null || document.documentMode < 9); |
- var ie_gt10 = /Trident\/([7-9]|\d{2,})\./.test(navigator.userAgent); |
- var ie = old_ie || ie_gt10; |
+ // ie_uptoN means Internet Explorer version N or lower |
+ var ie_upto10 = /MSIE \d/.test(navigator.userAgent); |
+ var ie_upto7 = ie_upto10 && (document.documentMode == null || document.documentMode < 8); |
+ var ie_upto8 = ie_upto10 && (document.documentMode == null || document.documentMode < 9); |
+ var ie_upto9 = ie_upto10 && (document.documentMode == null || document.documentMode < 10); |
+ var ie_11up = /Trident\/([7-9]|\d{2,})\./.test(navigator.userAgent); |
+ var ie = ie_upto10 || ie_11up; |
var webkit = /WebKit\//.test(navigator.userAgent); |
var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent); |
var chrome = /Chrome\//.test(navigator.userAgent); |
- var opera = /Opera\//.test(navigator.userAgent); |
+ var presto = /Opera\//.test(navigator.userAgent); |
var safari = /Apple Computer/.test(navigator.vendor); |
var khtml = /KHTML\//.test(navigator.userAgent); |
var mac_geLion = /Mac OS X 1\d\D([7-9]|\d\d)\D/.test(navigator.userAgent); |
@@ -31,152 +43,182 @@ window.CodeMirror = (function() { |
var mac = ios || /Mac/.test(navigator.platform); |
var windows = /win/i.test(navigator.platform); |
- var opera_version = opera && navigator.userAgent.match(/Version\/(\d*\.\d*)/); |
- if (opera_version) opera_version = Number(opera_version[1]); |
- if (opera_version && opera_version >= 15) { opera = false; webkit = true; } |
+ var presto_version = presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/); |
+ if (presto_version) presto_version = Number(presto_version[1]); |
+ if (presto_version && presto_version >= 15) { presto = false; webkit = true; } |
// Some browsers use the wrong event properties to signal cmd/ctrl on OS X |
- var flipCtrlCmd = mac && (qtwebkit || opera && (opera_version == null || opera_version < 12.11)); |
- var captureMiddleClick = gecko || (old_ie && !ie_lt9); |
+ var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); |
+ var captureRightClick = gecko || (ie && !ie_upto8); |
- // Optimize some code when these features are not used |
+ // Optimize some code when these features are not used. |
var sawReadOnlySpans = false, sawCollapsedSpans = false; |
- // CONSTRUCTOR |
+ // EDITOR CONSTRUCTOR |
+ |
+ // A CodeMirror instance represents an editor. This is the object |
+ // that user code is usually dealing with. |
function CodeMirror(place, options) { |
if (!(this instanceof CodeMirror)) return new CodeMirror(place, options); |
this.options = options = options || {}; |
// Determine effective options based on given values and defaults. |
- for (var opt in defaults) if (!options.hasOwnProperty(opt) && defaults.hasOwnProperty(opt)) |
+ for (var opt in defaults) if (!options.hasOwnProperty(opt)) |
options[opt] = defaults[opt]; |
setGuttersForLineNumbers(options); |
- var docStart = typeof options.value == "string" ? 0 : options.value.first; |
- var display = this.display = makeDisplay(place, docStart); |
+ var doc = options.value; |
+ if (typeof doc == "string") doc = new Doc(doc, options.mode); |
+ this.doc = doc; |
+ |
+ var display = this.display = new Display(place, doc); |
display.wrapper.CodeMirror = this; |
updateGutters(this); |
- if (options.autofocus && !mobile) focusInput(this); |
- |
- this.state = {keyMaps: [], |
- overlays: [], |
- modeGen: 0, |
- overwrite: false, focused: false, |
- suppressEdits: false, |
- pasteIncoming: false, cutIncoming: false, |
- draggingText: false, |
- highlight: new Delayed()}; |
- |
themeChanged(this); |
if (options.lineWrapping) |
this.display.wrapper.className += " CodeMirror-wrap"; |
+ if (options.autofocus && !mobile) focusInput(this); |
- var doc = options.value; |
- if (typeof doc == "string") doc = new Doc(options.value, options.mode); |
- operation(this, attachDoc)(this, doc); |
+ this.state = { |
+ keyMaps: [], // stores maps added by addKeyMap |
+ overlays: [], // highlighting overlays, as added by addOverlay |
+ modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info |
+ overwrite: false, focused: false, |
+ suppressEdits: false, // used to disable editing during key handlers when in readOnly mode |
+ pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in readInput |
+ draggingText: false, |
+ highlight: new Delayed() // stores highlight worker timeout |
+ }; |
// Override magic textarea content restore that IE sometimes does |
// on our hidden textarea on reload |
- if (old_ie) setTimeout(bind(resetInput, this, true), 20); |
+ if (ie_upto10) setTimeout(bind(resetInput, this, true), 20); |
registerEventHandlers(this); |
- // IE throws unspecified error in certain cases, when |
- // trying to access activeElement before onload |
- var hasFocus; try { hasFocus = (document.activeElement == display.input); } catch(e) { } |
- if (hasFocus || (options.autofocus && !mobile)) setTimeout(bind(onFocus, this), 20); |
- else onBlur(this); |
- operation(this, function() { |
- for (var opt in optionHandlers) |
- if (optionHandlers.propertyIsEnumerable(opt)) |
- optionHandlers[opt](this, options[opt], Init); |
- for (var i = 0; i < initHooks.length; ++i) initHooks[i](this); |
- })(); |
+ var cm = this; |
+ runInOp(this, function() { |
+ cm.curOp.forceUpdate = true; |
+ attachDoc(cm, doc); |
+ |
+ if ((options.autofocus && !mobile) || activeElt() == display.input) |
+ setTimeout(bind(onFocus, cm), 20); |
+ else |
+ onBlur(cm); |
+ |
+ for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt)) |
+ optionHandlers[opt](cm, options[opt], Init); |
+ for (var i = 0; i < initHooks.length; ++i) initHooks[i](cm); |
+ }); |
} |
// DISPLAY CONSTRUCTOR |
- function makeDisplay(place, docStart) { |
- var d = {}; |
+ // The display handles the DOM integration, both for input reading |
+ // and content drawing. It holds references to DOM nodes and |
+ // display-related state. |
+ |
+ function Display(place, doc) { |
+ var d = this; |
- var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none; font-size: 4px;"); |
+ // The semihidden textarea that is focused when the editor is |
+ // focused, and receives input. |
+ var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none"); |
+ // The textarea is kept positioned near the cursor to prevent the |
+ // fact that it'll be scrolled into view on input from scrolling |
+ // our fake cursor out of view. On webkit, when wrap=off, paste is |
+ // very slow. So make the area wide instead. |
if (webkit) input.style.width = "1000px"; |
else input.setAttribute("wrap", "off"); |
- // if border: 0; -- iOS fails to open keyboard (issue #1287) |
+ // If border: 0; -- iOS fails to open keyboard (issue #1287) |
if (ios) input.style.border = "1px solid black"; |
input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off"); input.setAttribute("spellcheck", "false"); |
// Wraps and hides input textarea |
d.inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); |
- // The actual fake scrollbars. |
- d.scrollbarH = elt("div", [elt("div", null, null, "height: 1px")], "CodeMirror-hscrollbar"); |
- d.scrollbarV = elt("div", [elt("div", null, null, "width: 1px")], "CodeMirror-vscrollbar"); |
+ // The fake scrollbar elements. |
+ d.scrollbarH = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); |
+ d.scrollbarV = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); |
+ // Covers bottom-right square when both scrollbars are present. |
d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); |
+ // Covers bottom of gutter when coverGutterNextToScrollbar is on |
+ // and h scrollbar is present. |
d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); |
- // DIVs containing the selection and the actual code |
+ // Will contain the actual code, positioned to cover the viewport. |
d.lineDiv = elt("div", null, "CodeMirror-code"); |
+ // Elements are added to these to represent selection and cursors. |
d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); |
- // Blinky cursor, and element used to ensure cursor fits at the end of a line |
- d.cursor = elt("div", "\u00a0", "CodeMirror-cursor"); |
- // Secondary cursor, shown when on a 'jump' in bi-directional text |
- d.otherCursor = elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"); |
- // Used to measure text size |
+ d.cursorDiv = elt("div", null, "CodeMirror-cursors"); |
+ // A visibility: hidden element used to find the size of things. |
d.measure = elt("div", null, "CodeMirror-measure"); |
+ // When lines outside of the viewport are measured, they are drawn in this. |
+ d.lineMeasure = elt("div", null, "CodeMirror-measure"); |
// Wraps everything that needs to exist inside the vertically-padded coordinate system |
- d.lineSpace = elt("div", [d.measure, d.selectionDiv, d.lineDiv, d.cursor, d.otherCursor], |
- null, "position: relative; outline: none"); |
- // Moved around its parent to cover visible view |
+ d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], |
+ null, "position: relative; outline: none"); |
+ // Moved around its parent to cover visible view. |
d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative"); |
- // Set to the height of the text, causes scrolling |
+ // Set to the height of the document, allowing scrolling. |
d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); |
- // D is needed because behavior of elts with overflow: auto and padding is inconsistent across browsers |
+ // Behavior of elts with overflow: auto and padding is |
+ // inconsistent across browsers. This is used to ensure the |
+ // scrollable area is big enough. |
d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerCutOff + "px; width: 1px;"); |
- // Will contain the gutters, if any |
+ // Will contain the gutters, if any. |
d.gutters = elt("div", null, "CodeMirror-gutters"); |
d.lineGutter = null; |
- // Provides scrolling |
+ // Actual scrollable element. |
d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); |
d.scroller.setAttribute("tabIndex", "-1"); |
// The element in which the editor lives. |
d.wrapper = elt("div", [d.inputDiv, d.scrollbarH, d.scrollbarV, |
d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); |
- // Work around IE7 z-index bug |
- if (ie_lt8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } |
- if (place.appendChild) place.appendChild(d.wrapper); else place(d.wrapper); |
+ // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) |
+ if (ie_upto7) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } |
// Needed to hide big blue blinking cursor on Mobile Safari |
if (ios) input.style.width = "0px"; |
if (!webkit) d.scroller.draggable = true; |
// Needed to handle Tab key in KHTML |
if (khtml) { d.inputDiv.style.height = "1px"; d.inputDiv.style.position = "absolute"; } |
// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). |
- else if (ie_lt8) d.scrollbarH.style.minWidth = d.scrollbarV.style.minWidth = "18px"; |
- |
- // Current visible range (may be bigger than the view window). |
- d.viewOffset = d.lastSizeC = 0; |
- d.showingFrom = d.showingTo = docStart; |
+ if (ie_upto7) d.scrollbarH.style.minHeight = d.scrollbarV.style.minWidth = "18px"; |
+ |
+ if (place.appendChild) place.appendChild(d.wrapper); |
+ else place(d.wrapper); |
+ |
+ // Current rendered range (may be bigger than the view window). |
+ d.viewFrom = d.viewTo = doc.first; |
+ // Information about the rendered lines. |
+ d.view = []; |
+ // Holds info about a single rendered line when it was rendered |
+ // for measurement, while not in view. |
+ d.externalMeasured = null; |
+ // Empty space (in pixels) above the view |
+ d.viewOffset = 0; |
+ d.lastSizeC = 0; |
+ d.updateLineNumbers = null; |
// Used to only resize the line number gutter when necessary (when |
// the amount of lines crosses a boundary that makes its width change) |
d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; |
// See readInput and resetInput |
d.prevInput = ""; |
- // Set to true when a non-horizontal-scrolling widget is added. As |
- // an optimization, widget aligning is skipped when d is false. |
+ // Set to true when a non-horizontal-scrolling line widget is |
+ // added. As an optimization, line widget aligning is skipped when |
+ // this is false. |
d.alignWidgets = false; |
- // Flag that indicates whether we currently expect input to appear |
- // (after some event like 'keypress' or 'input') and are polling |
- // intensively. |
+ // Flag that indicates whether we expect input to appear real soon |
+ // now (after some event like 'keypress' or 'input') and are |
+ // polling intensively. |
d.pollingFast = false; |
// Self-resetting timeout for the poller |
d.poll = new Delayed(); |
- d.cachedCharWidth = d.cachedTextHeight = null; |
- d.measureLineCache = []; |
- d.measureLineCachePos = 0; |
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; |
// Tracks when resetInput has punted to just putting a short |
- // string instead of the (large) selection. |
+ // string into the textarea instead of the full selection. |
d.inaccurateSelection = false; |
// Tracks the maximum line length so that the horizontal scrollbar |
@@ -188,7 +230,8 @@ window.CodeMirror = (function() { |
// Used for measuring wheel scrolling granularity |
d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; |
- return d; |
+ // True when shift is held down. |
+ d.shift = false; |
} |
// STATE UPDATES |
@@ -217,7 +260,7 @@ window.CodeMirror = (function() { |
cm.display.sizer.style.minWidth = ""; |
} else { |
cm.display.wrapper.className = cm.display.wrapper.className.replace(" CodeMirror-wrap", ""); |
- computeMaxLength(cm); |
+ findMaxLine(cm); |
} |
estimateLineHeights(cm); |
regChange(cm); |
@@ -225,16 +268,24 @@ window.CodeMirror = (function() { |
setTimeout(function(){updateScrollbars(cm);}, 100); |
} |
+ // Returns a function that estimates the height of a line, to use as |
+ // first approximation until the line becomes visible (and is thus |
+ // properly measurable). |
function estimateHeight(cm) { |
var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; |
var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); |
return function(line) { |
- if (lineIsHidden(cm.doc, line)) |
- return 0; |
- else if (wrapping) |
- return (Math.ceil(line.text.length / perLine) || 1) * th; |
+ if (lineIsHidden(cm.doc, line)) return 0; |
+ |
+ var widgetsHeight = 0; |
+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++) { |
+ if (line.widgets[i].height) widgetsHeight += line.widgets[i].height; |
+ } |
+ |
+ if (wrapping) |
+ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th; |
else |
- return th; |
+ return widgetsHeight + th; |
}; |
} |
@@ -264,6 +315,8 @@ window.CodeMirror = (function() { |
setTimeout(function(){alignHorizontally(cm);}, 20); |
} |
+ // Rebuild the gutter elements, ensure the margin to the left of the |
+ // code matches their width. |
function updateGutters(cm) { |
var gutters = cm.display.gutters, specs = cm.options.gutters; |
removeChildren(gutters); |
@@ -276,33 +329,40 @@ window.CodeMirror = (function() { |
} |
} |
gutters.style.display = i ? "" : "none"; |
+ var width = gutters.offsetWidth; |
+ cm.display.sizer.style.marginLeft = width + "px"; |
+ if (i) cm.display.scrollbarH.style.left = cm.options.fixedGutter ? width + "px" : 0; |
} |
- function lineLength(doc, line) { |
+ // Compute the character length of a line, taking into account |
+ // collapsed ranges (see markText) that might hide parts, and join |
+ // other lines onto it. |
+ function lineLength(line) { |
if (line.height == 0) return 0; |
var len = line.text.length, merged, cur = line; |
while (merged = collapsedSpanAtStart(cur)) { |
- var found = merged.find(); |
- cur = getLine(doc, found.from.line); |
+ var found = merged.find(0, true); |
+ cur = found.from.line; |
len += found.from.ch - found.to.ch; |
} |
cur = line; |
while (merged = collapsedSpanAtEnd(cur)) { |
- var found = merged.find(); |
+ var found = merged.find(0, true); |
len -= cur.text.length - found.from.ch; |
- cur = getLine(doc, found.to.line); |
+ cur = found.to.line; |
len += cur.text.length - found.to.ch; |
} |
return len; |
} |
- function computeMaxLength(cm) { |
+ // Find the longest line in the document. |
+ function findMaxLine(cm) { |
var d = cm.display, doc = cm.doc; |
d.maxLine = getLine(doc, doc.first); |
- d.maxLineLength = lineLength(doc, d.maxLine); |
+ d.maxLineLength = lineLength(d.maxLine); |
d.maxLineChanged = true; |
doc.iter(function(line) { |
- var len = lineLength(doc, line); |
+ var len = lineLength(line); |
if (len > d.maxLineLength) { |
d.maxLineLength = len; |
d.maxLine = line; |
@@ -324,22 +384,33 @@ window.CodeMirror = (function() { |
// SCROLLBARS |
+ // Prepare DOM reads needed to update the scrollbars. Done in one |
+ // shot to minimize update/measure roundtrips. |
+ function measureForScrollbars(cm) { |
+ var scroll = cm.display.scroller; |
+ return { |
+ clientHeight: scroll.clientHeight, |
+ barHeight: cm.display.scrollbarV.clientHeight, |
+ scrollWidth: scroll.scrollWidth, clientWidth: scroll.clientWidth, |
+ barWidth: cm.display.scrollbarH.clientWidth, |
+ docHeight: Math.round(cm.doc.height + paddingVert(cm.display)) |
+ }; |
+ } |
+ |
// Re-synchronize the fake scrollbars with the actual size of the |
- // content. Optionally force a scrollTop. |
- function updateScrollbars(cm) { |
- var d = cm.display, docHeight = cm.doc.height; |
- var totalHeight = docHeight + paddingVert(d); |
- d.sizer.style.minHeight = d.heightForcer.style.top = totalHeight + "px"; |
- d.gutters.style.height = Math.max(totalHeight, d.scroller.clientHeight - scrollerCutOff) + "px"; |
- var scrollHeight = Math.max(totalHeight, d.scroller.scrollHeight); |
- var needsH = d.scroller.scrollWidth > (d.scroller.clientWidth + 1); |
- var needsV = scrollHeight > (d.scroller.clientHeight + 1); |
+ // content. |
+ function updateScrollbars(cm, measure) { |
+ if (!measure) measure = measureForScrollbars(cm); |
+ var d = cm.display; |
+ var scrollHeight = measure.docHeight + scrollerCutOff; |
+ var needsH = measure.scrollWidth > measure.clientWidth; |
+ var needsV = scrollHeight > measure.clientHeight; |
if (needsV) { |
d.scrollbarV.style.display = "block"; |
d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0"; |
// A bug in IE8 can cause this value to be negative, so guard it. |
d.scrollbarV.firstChild.style.height = |
- Math.max(0, scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight) + "px"; |
+ Math.max(0, scrollHeight - measure.clientHeight + (measure.barHeight || d.scrollbarV.clientHeight)) + "px"; |
} else { |
d.scrollbarV.style.display = ""; |
d.scrollbarV.firstChild.style.height = "0"; |
@@ -348,7 +419,7 @@ window.CodeMirror = (function() { |
d.scrollbarH.style.display = "block"; |
d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0"; |
d.scrollbarH.firstChild.style.width = |
- (d.scroller.scrollWidth - d.scroller.clientWidth + d.scrollbarH.clientWidth) + "px"; |
+ (measure.scrollWidth - measure.clientWidth + (measure.barWidth || d.scrollbarH.clientWidth)) + "px"; |
} else { |
d.scrollbarH.style.display = ""; |
d.scrollbarH.firstChild.style.width = "0"; |
@@ -365,33 +436,61 @@ window.CodeMirror = (function() { |
if (mac_geLion && scrollbarWidth(d.measure) === 0) { |
d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = mac_geMountainLion ? "18px" : "12px"; |
- d.scrollbarV.style.pointerEvents = d.scrollbarH.style.pointerEvents = "none"; |
+ var barMouseDown = function(e) { |
+ if (e_target(e) != d.scrollbarV && e_target(e) != d.scrollbarH) |
+ operation(cm, onMouseDown)(e); |
+ }; |
+ on(d.scrollbarV, "mousedown", barMouseDown); |
+ on(d.scrollbarH, "mousedown", barMouseDown); |
} |
} |
+ // Compute the lines that are visible in a given viewport (defaults |
+ // the the current scroll position). viewPort may contain top, |
+ // height, and ensure (see op.scrollToPos) properties. |
function visibleLines(display, doc, viewPort) { |
- var top = display.scroller.scrollTop, height = display.wrapper.clientHeight; |
- if (typeof viewPort == "number") top = viewPort; |
- else if (viewPort) {top = viewPort.top; height = viewPort.bottom - viewPort.top;} |
+ var top = viewPort && viewPort.top != null ? viewPort.top : display.scroller.scrollTop; |
top = Math.floor(top - paddingTop(display)); |
- var bottom = Math.ceil(top + height); |
- return {from: lineAtHeight(doc, top), to: lineAtHeight(doc, bottom)}; |
+ var bottom = viewPort && viewPort.bottom != null ? viewPort.bottom : top + display.wrapper.clientHeight; |
+ |
+ var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); |
+ // Ensure is a {from: {line, ch}, to: {line, ch}} object, and |
+ // forces those lines into the viewport (if possible). |
+ if (viewPort && viewPort.ensure) { |
+ var ensureFrom = viewPort.ensure.from.line, ensureTo = viewPort.ensure.to.line; |
+ if (ensureFrom < from) |
+ return {from: ensureFrom, |
+ to: lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)}; |
+ if (Math.min(ensureTo, doc.lastLine()) >= to) |
+ return {from: lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight), |
+ to: ensureTo}; |
+ } |
+ return {from: from, to: to}; |
} |
// LINE NUMBERS |
+ // Re-align line numbers and gutter marks to compensate for |
+ // horizontal scrolling. |
function alignHorizontally(cm) { |
- var display = cm.display; |
+ var display = cm.display, view = display.view; |
if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return; |
var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; |
- var gutterW = display.gutters.offsetWidth, l = comp + "px"; |
- for (var n = display.lineDiv.firstChild; n; n = n.nextSibling) if (n.alignable) { |
- for (var i = 0, a = n.alignable; i < a.length; ++i) a[i].style.left = l; |
+ var gutterW = display.gutters.offsetWidth, left = comp + "px"; |
+ for (var i = 0; i < view.length; i++) if (!view[i].hidden) { |
+ if (cm.options.fixedGutter && view[i].gutter) |
+ view[i].gutter.style.left = left; |
+ var align = view[i].alignable; |
+ if (align) for (var j = 0; j < align.length; j++) |
+ align[j].style.left = left; |
} |
if (cm.options.fixedGutter) |
display.gutters.style.left = (comp + gutterW) + "px"; |
} |
+ // Used to ensure that the line number gutter is still the right |
+ // size for the current document size. Returns true when an update |
+ // is needed. |
function maybeUpdateLineNumberWidth(cm) { |
if (!cm.options.lineNumbers) return false; |
var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; |
@@ -404,6 +503,9 @@ window.CodeMirror = (function() { |
display.lineNumWidth = display.lineNumInnerWidth + padding; |
display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; |
display.lineGutter.style.width = display.lineNumWidth + "px"; |
+ var width = display.gutters.offsetWidth; |
+ display.scrollbarH.style.left = cm.options.fixedGutter ? width + "px" : 0; |
+ display.sizer.style.marginLeft = width + "px"; |
return true; |
} |
return false; |
@@ -412,192 +514,181 @@ window.CodeMirror = (function() { |
function lineNumberFor(options, i) { |
return String(options.lineNumberFormatter(i + options.firstLineNumber)); |
} |
+ |
+ // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, |
+ // but using getBoundingClientRect to get a sub-pixel-accurate |
+ // result. |
function compensateForHScroll(display) { |
- return getRect(display.scroller).left - getRect(display.sizer).left; |
+ return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left; |
} |
// DISPLAY DRAWING |
- function updateDisplay(cm, changes, viewPort, forced) { |
- var oldFrom = cm.display.showingFrom, oldTo = cm.display.showingTo, updated; |
+ // Updates the display, selection, and scrollbars, using the |
+ // information in display.view to find out which nodes are no longer |
+ // up-to-date. Tries to bail out early when no changes are needed, |
+ // unless forced is true. |
+ // Returns true if an actual update happened, false otherwise. |
+ function updateDisplay(cm, viewPort, forced) { |
+ var oldFrom = cm.display.viewFrom, oldTo = cm.display.viewTo, updated; |
var visible = visibleLines(cm.display, cm.doc, viewPort); |
for (var first = true;; first = false) { |
var oldWidth = cm.display.scroller.clientWidth; |
- if (!updateDisplayInner(cm, changes, visible, forced)) break; |
+ if (!updateDisplayInner(cm, visible, forced)) break; |
updated = true; |
- changes = []; |
+ |
+ // If the max line changed since it was last measured, measure it, |
+ // and ensure the document's width matches it. |
+ if (cm.display.maxLineChanged && !cm.options.lineWrapping) |
+ adjustContentWidth(cm); |
+ |
+ var barMeasure = measureForScrollbars(cm); |
updateSelection(cm); |
- updateScrollbars(cm); |
+ setDocumentHeight(cm, barMeasure); |
+ updateScrollbars(cm, barMeasure); |
if (first && cm.options.lineWrapping && oldWidth != cm.display.scroller.clientWidth) { |
forced = true; |
continue; |
} |
forced = false; |
- // Clip forced viewport to actual scrollable area |
- if (viewPort) |
- viewPort = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, |
- typeof viewPort == "number" ? viewPort : viewPort.top); |
+ // Clip forced viewport to actual scrollable area. |
+ if (viewPort && viewPort.top != null) |
+ viewPort = {top: Math.min(barMeasure.docHeight - scrollerCutOff - barMeasure.clientHeight, viewPort.top)}; |
+ // Updated line heights might result in the drawn area not |
+ // actually covering the viewport. Keep looping until it does. |
visible = visibleLines(cm.display, cm.doc, viewPort); |
- if (visible.from >= cm.display.showingFrom && visible.to <= cm.display.showingTo) |
+ if (visible.from >= cm.display.viewFrom && visible.to <= cm.display.viewTo) |
break; |
} |
+ cm.display.updateLineNumbers = null; |
if (updated) { |
signalLater(cm, "update", cm); |
- if (cm.display.showingFrom != oldFrom || cm.display.showingTo != oldTo) |
- signalLater(cm, "viewportChange", cm, cm.display.showingFrom, cm.display.showingTo); |
+ if (cm.display.viewFrom != oldFrom || cm.display.viewTo != oldTo) |
+ signalLater(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); |
} |
return updated; |
} |
- // Uses a set of changes plus the current scroll position to |
- // determine which DOM updates have to be made, and makes the |
- // updates. |
- function updateDisplayInner(cm, changes, visible, forced) { |
+ // Does the actual updating of the line display. Bails out |
+ // (returning false) when there is nothing to be done and forced is |
+ // false. |
+ function updateDisplayInner(cm, visible, forced) { |
var display = cm.display, doc = cm.doc; |
if (!display.wrapper.offsetWidth) { |
- display.showingFrom = display.showingTo = doc.first; |
- display.viewOffset = 0; |
+ resetView(cm); |
return; |
} |
// Bail out if the visible area is already rendered and nothing changed. |
- if (!forced && changes.length == 0 && |
- visible.from > display.showingFrom && visible.to < display.showingTo) |
+ if (!forced && visible.from >= display.viewFrom && visible.to <= display.viewTo && |
+ countDirtyView(cm) == 0) |
return; |
if (maybeUpdateLineNumberWidth(cm)) |
- changes = [{from: doc.first, to: doc.first + doc.size}]; |
- var gutterW = display.sizer.style.marginLeft = display.gutters.offsetWidth + "px"; |
- display.scrollbarH.style.left = cm.options.fixedGutter ? gutterW : "0"; |
- |
- // Used to determine which lines need their line numbers updated |
- var positionsChangedFrom = Infinity; |
- if (cm.options.lineNumbers) |
- for (var i = 0; i < changes.length; ++i) |
- if (changes[i].diff && changes[i].from < positionsChangedFrom) { positionsChangedFrom = changes[i].from; } |
+ resetView(cm); |
+ var dims = getDimensions(cm); |
+ // Compute a suitable new viewport (from & to) |
var end = doc.first + doc.size; |
var from = Math.max(visible.from - cm.options.viewportMargin, doc.first); |
var to = Math.min(end, visible.to + cm.options.viewportMargin); |
- if (display.showingFrom < from && from - display.showingFrom < 20) from = Math.max(doc.first, display.showingFrom); |
- if (display.showingTo > to && display.showingTo - to < 20) to = Math.min(end, display.showingTo); |
+ if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom); |
+ if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo); |
if (sawCollapsedSpans) { |
- from = lineNo(visualLine(doc, getLine(doc, from))); |
- while (to < end && lineIsHidden(doc, getLine(doc, to))) ++to; |
- } |
- |
- // Create a range of theoretically intact lines, and punch holes |
- // in that using the change info. |
- var intact = [{from: Math.max(display.showingFrom, doc.first), |
- to: Math.min(display.showingTo, end)}]; |
- if (intact[0].from >= intact[0].to) intact = []; |
- else intact = computeIntact(intact, changes); |
- // When merged lines are present, we might have to reduce the |
- // intact ranges because changes in continued fragments of the |
- // intact lines do require the lines to be redrawn. |
- if (sawCollapsedSpans) |
- for (var i = 0; i < intact.length; ++i) { |
- var range = intact[i], merged; |
- while (merged = collapsedSpanAtEnd(getLine(doc, range.to - 1))) { |
- var newTo = merged.find().from.line; |
- if (newTo > range.from) range.to = newTo; |
- else { intact.splice(i--, 1); break; } |
- } |
- } |
- |
- // Clip off the parts that won't be visible |
- var intactLines = 0; |
- for (var i = 0; i < intact.length; ++i) { |
- var range = intact[i]; |
- if (range.from < from) range.from = from; |
- if (range.to > to) range.to = to; |
- if (range.from >= range.to) intact.splice(i--, 1); |
- else intactLines += range.to - range.from; |
+ from = visualLineNo(cm.doc, from); |
+ to = visualLineEndNo(cm.doc, to); |
} |
- if (!forced && intactLines == to - from && from == display.showingFrom && to == display.showingTo) { |
- updateViewOffset(cm); |
- return; |
- } |
- intact.sort(function(a, b) {return a.from - b.from;}); |
- // Avoid crashing on IE's "unspecified error" when in iframes |
- try { |
- var focused = document.activeElement; |
- } catch(e) {} |
- if (intactLines < (to - from) * .7) display.lineDiv.style.display = "none"; |
- patchDisplay(cm, from, to, intact, positionsChangedFrom); |
- display.lineDiv.style.display = ""; |
- if (focused && document.activeElement != focused && focused.offsetHeight) focused.focus(); |
- |
- var different = from != display.showingFrom || to != display.showingTo || |
+ var different = from != display.viewFrom || to != display.viewTo || |
display.lastSizeC != display.wrapper.clientHeight; |
- // This is just a bogus formula that detects when the editor is |
- // resized or the font size changes. |
+ adjustView(cm, from, to); |
+ |
+ display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); |
+ // Position the mover div to align with the current scroll position |
+ cm.display.mover.style.top = display.viewOffset + "px"; |
+ |
+ var toUpdate = countDirtyView(cm); |
+ if (!different && toUpdate == 0 && !forced) return; |
+ |
+ // For big changes, we hide the enclosing element during the |
+ // update, since that speeds up the operations on most browsers. |
+ var focused = activeElt(); |
+ if (toUpdate > 4) display.lineDiv.style.display = "none"; |
+ patchDisplay(cm, display.updateLineNumbers, dims); |
+ if (toUpdate > 4) display.lineDiv.style.display = ""; |
+ // There might have been a widget with a focused element that got |
+ // hidden or updated, if so re-focus it. |
+ if (focused && activeElt() != focused && focused.offsetHeight) focused.focus(); |
+ |
+ // Prevent selection and cursors from interfering with the scroll |
+ // width. |
+ removeChildren(display.cursorDiv); |
+ removeChildren(display.selectionDiv); |
+ |
if (different) { |
display.lastSizeC = display.wrapper.clientHeight; |
startWorker(cm, 400); |
} |
- display.showingFrom = from; display.showingTo = to; |
- display.gutters.style.height = ""; |
updateHeightsInViewport(cm); |
- updateViewOffset(cm); |
return true; |
} |
+ function adjustContentWidth(cm) { |
+ var display = cm.display; |
+ var width = measureChar(cm, display.maxLine, display.maxLine.text.length).left; |
+ display.maxLineChanged = false; |
+ var minWidth = Math.max(0, width + 3); |
+ var maxScrollLeft = Math.max(0, display.sizer.offsetLeft + minWidth + scrollerCutOff - display.scroller.clientWidth); |
+ display.sizer.style.minWidth = minWidth + "px"; |
+ if (maxScrollLeft < cm.doc.scrollLeft) |
+ setScrollLeft(cm, Math.min(display.scroller.scrollLeft, maxScrollLeft), true); |
+ } |
+ |
+ function setDocumentHeight(cm, measure) { |
+ cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = measure.docHeight + "px"; |
+ cm.display.gutters.style.height = Math.max(measure.docHeight, measure.clientHeight - scrollerCutOff) + "px"; |
+ } |
+ |
+ // Read the actual heights of the rendered lines, and update their |
+ // stored heights to match. |
function updateHeightsInViewport(cm) { |
var display = cm.display; |
var prevBottom = display.lineDiv.offsetTop; |
- for (var node = display.lineDiv.firstChild, height; node; node = node.nextSibling) if (node.lineObj) { |
- if (ie_lt8) { |
- var bot = node.offsetTop + node.offsetHeight; |
+ for (var i = 0; i < display.view.length; i++) { |
+ var cur = display.view[i], height; |
+ if (cur.hidden) continue; |
+ if (ie_upto7) { |
+ var bot = cur.node.offsetTop + cur.node.offsetHeight; |
height = bot - prevBottom; |
prevBottom = bot; |
} else { |
- var box = getRect(node); |
+ var box = cur.node.getBoundingClientRect(); |
height = box.bottom - box.top; |
} |
- var diff = node.lineObj.height - height; |
+ var diff = cur.line.height - height; |
if (height < 2) height = textHeight(display); |
if (diff > .001 || diff < -.001) { |
- updateLineHeight(node.lineObj, height); |
- var widgets = node.lineObj.widgets; |
- if (widgets) for (var i = 0; i < widgets.length; ++i) |
- widgets[i].height = widgets[i].node.offsetHeight; |
+ updateLineHeight(cur.line, height); |
+ updateWidgetHeight(cur.line); |
+ if (cur.rest) for (var j = 0; j < cur.rest.length; j++) |
+ updateWidgetHeight(cur.rest[j]); |
} |
} |
} |
- function updateViewOffset(cm) { |
- var off = cm.display.viewOffset = heightAtLine(cm, getLine(cm.doc, cm.display.showingFrom)); |
- // Position the mover div to align with the current virtual scroll position |
- cm.display.mover.style.top = off + "px"; |
- } |
- |
- function computeIntact(intact, changes) { |
- for (var i = 0, l = changes.length || 0; i < l; ++i) { |
- var change = changes[i], intact2 = [], diff = change.diff || 0; |
- for (var j = 0, l2 = intact.length; j < l2; ++j) { |
- var range = intact[j]; |
- if (change.to <= range.from && change.diff) { |
- intact2.push({from: range.from + diff, to: range.to + diff}); |
- } else if (change.to <= range.from || change.from >= range.to) { |
- intact2.push(range); |
- } else { |
- if (change.from > range.from) |
- intact2.push({from: range.from, to: change.from}); |
- if (change.to < range.to) |
- intact2.push({from: change.to + diff, to: range.to + diff}); |
- } |
- } |
- intact = intact2; |
- } |
- return intact; |
+ // Read and store the height of line widgets associated with the |
+ // given line. |
+ function updateWidgetHeight(line) { |
+ if (line.widgets) for (var i = 0; i < line.widgets.length; ++i) |
+ line.widgets[i].height = line.widgets[i].node.offsetHeight; |
} |
+ // Do a bulk-read of the DOM positions and sizes needed to draw the |
+ // view, so that we don't interleave reading and writing to the DOM. |
function getDimensions(cm) { |
var d = cm.display, left = {}, width = {}; |
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { |
@@ -611,154 +702,207 @@ window.CodeMirror = (function() { |
wrapperWidth: d.wrapper.clientWidth}; |
} |
- function patchDisplay(cm, from, to, intact, updateNumbersFrom) { |
- var dims = getDimensions(cm); |
+ // Sync the actual display DOM structure with display.view, removing |
+ // nodes for lines that are no longer in view, and creating the ones |
+ // that are not there yet, and updating the ones that are out of |
+ // date. |
+ function patchDisplay(cm, updateNumbersFrom, dims) { |
var display = cm.display, lineNumbers = cm.options.lineNumbers; |
- if (!intact.length && (!webkit || !cm.display.currentWheelTarget)) |
- removeChildren(display.lineDiv); |
var container = display.lineDiv, cur = container.firstChild; |
function rm(node) { |
var next = node.nextSibling; |
- if (webkit && mac && cm.display.currentWheelTarget == node) { |
+ // Works around a throw-scroll bug in OS X Webkit |
+ if (webkit && mac && cm.display.currentWheelTarget == node) |
node.style.display = "none"; |
- node.lineObj = null; |
- } else { |
+ else |
node.parentNode.removeChild(node); |
- } |
return next; |
} |
- var nextIntact = intact.shift(), lineN = from; |
- cm.doc.iter(from, to, function(line) { |
- if (nextIntact && nextIntact.to == lineN) nextIntact = intact.shift(); |
- if (lineIsHidden(cm.doc, line)) { |
- if (line.height != 0) updateLineHeight(line, 0); |
- if (line.widgets && cur && cur.previousSibling) for (var i = 0; i < line.widgets.length; ++i) { |
- var w = line.widgets[i]; |
- if (w.showIfHidden) { |
- var prev = cur.previousSibling; |
- if (/pre/i.test(prev.nodeName)) { |
- var wrap = elt("div", null, null, "position: relative"); |
- prev.parentNode.replaceChild(wrap, prev); |
- wrap.appendChild(prev); |
- prev = wrap; |
- } |
- var wnode = prev.appendChild(elt("div", [w.node], "CodeMirror-linewidget")); |
- if (!w.handleMouseEvents) wnode.ignoreEvents = true; |
- positionLineWidget(w, wnode, prev, dims); |
- } |
+ var view = display.view, lineN = display.viewFrom; |
+ // Loop over the elements in the view, syncing cur (the DOM nodes |
+ // in display.lineDiv) with the view as we go. |
+ for (var i = 0; i < view.length; i++) { |
+ var lineView = view[i]; |
+ if (lineView.hidden) { |
+ } else if (!lineView.node) { // Not drawn yet |
+ var node = buildLineElement(cm, lineView, lineN, dims); |
+ container.insertBefore(node, cur); |
+ } else { // Already drawn |
+ while (cur != lineView.node) cur = rm(cur); |
+ var updateNumber = lineNumbers && updateNumbersFrom != null && |
+ updateNumbersFrom <= lineN && lineView.lineNumber; |
+ if (lineView.changes) { |
+ if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false; |
+ updateLineForChanges(cm, lineView, lineN, dims); |
} |
- } else if (nextIntact && nextIntact.from <= lineN && nextIntact.to > lineN) { |
- // This line is intact. Skip to the actual node. Update its |
- // line number if needed. |
- while (cur.lineObj != line) cur = rm(cur); |
- if (lineNumbers && updateNumbersFrom <= lineN && cur.lineNumber) |
- setTextContent(cur.lineNumber, lineNumberFor(cm.options, lineN)); |
- cur = cur.nextSibling; |
- } else { |
- // For lines with widgets, make an attempt to find and reuse |
- // the existing element, so that widgets aren't needlessly |
- // removed and re-inserted into the dom |
- if (line.widgets) for (var j = 0, search = cur, reuse; search && j < 20; ++j, search = search.nextSibling) |
- if (search.lineObj == line && /div/i.test(search.nodeName)) { reuse = search; break; } |
- // This line needs to be generated. |
- var lineNode = buildLineElement(cm, line, lineN, dims, reuse); |
- if (lineNode != reuse) { |
- container.insertBefore(lineNode, cur); |
- } else { |
- while (cur != reuse) cur = rm(cur); |
- cur = cur.nextSibling; |
+ if (updateNumber) { |
+ removeChildren(lineView.lineNumber); |
+ lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); |
} |
- |
- lineNode.lineObj = line; |
+ cur = lineView.node.nextSibling; |
} |
- ++lineN; |
- }); |
+ lineN += lineView.size; |
+ } |
while (cur) cur = rm(cur); |
} |
- function buildLineElement(cm, line, lineNo, dims, reuse) { |
- var built = buildLineContent(cm, line), lineElement = built.pre; |
- var markers = line.gutterMarkers, display = cm.display, wrap; |
- |
- var bgClass = built.bgClass ? built.bgClass + " " + (line.bgClass || "") : line.bgClass; |
- if (!cm.options.lineNumbers && !markers && !bgClass && !line.wrapClass && !line.widgets) |
- return lineElement; |
+ // When an aspect of a line changes, a string is added to |
+ // lineView.changes. This updates the relevant part of the line's |
+ // DOM structure. |
+ function updateLineForChanges(cm, lineView, lineN, dims) { |
+ for (var j = 0; j < lineView.changes.length; j++) { |
+ var type = lineView.changes[j]; |
+ if (type == "text") updateLineText(cm, lineView); |
+ else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims); |
+ else if (type == "class") updateLineClasses(lineView); |
+ else if (type == "widget") updateLineWidgets(lineView, dims); |
+ } |
+ lineView.changes = null; |
+ } |
- // Lines with gutter elements, widgets or a background class need |
- // to be wrapped again, and have the extra elements added to the |
- // wrapper div |
+ // Lines with gutter elements, widgets or a background class need to |
+ // be wrapped, and have the extra elements added to the wrapper div |
+ function ensureLineWrapped(lineView) { |
+ if (lineView.node == lineView.text) { |
+ lineView.node = elt("div", null, null, "position: relative"); |
+ if (lineView.text.parentNode) |
+ lineView.text.parentNode.replaceChild(lineView.node, lineView.text); |
+ lineView.node.appendChild(lineView.text); |
+ if (ie_upto7) lineView.node.style.zIndex = 2; |
+ } |
+ return lineView.node; |
+ } |
- if (reuse) { |
- reuse.alignable = null; |
- var isOk = true, widgetsSeen = 0, insertBefore = null; |
- for (var n = reuse.firstChild, next; n; n = next) { |
- next = n.nextSibling; |
- if (!/\bCodeMirror-linewidget\b/.test(n.className)) { |
- reuse.removeChild(n); |
- } else { |
- for (var i = 0; i < line.widgets.length; ++i) { |
- var widget = line.widgets[i]; |
- if (widget.node == n.firstChild) { |
- if (!widget.above && !insertBefore) insertBefore = n; |
- positionLineWidget(widget, n, reuse, dims); |
- ++widgetsSeen; |
- break; |
- } |
- } |
- if (i == line.widgets.length) { isOk = false; break; } |
- } |
- } |
- reuse.insertBefore(lineElement, insertBefore); |
- if (isOk && widgetsSeen == line.widgets.length) { |
- wrap = reuse; |
- reuse.className = line.wrapClass || ""; |
- } |
+ function updateLineBackground(lineView) { |
+ var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; |
+ if (cls) cls += " CodeMirror-linebackground"; |
+ if (lineView.background) { |
+ if (cls) lineView.background.className = cls; |
+ else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } |
+ } else if (cls) { |
+ var wrap = ensureLineWrapped(lineView); |
+ lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); |
} |
- if (!wrap) { |
- wrap = elt("div", null, line.wrapClass, "position: relative"); |
- wrap.appendChild(lineElement); |
+ } |
+ |
+ // Wrapper around buildLineContent which will reuse the structure |
+ // in display.externalMeasured when possible. |
+ function getLineContent(cm, lineView) { |
+ var ext = cm.display.externalMeasured; |
+ if (ext && ext.line == lineView.line) { |
+ cm.display.externalMeasured = null; |
+ lineView.measure = ext.measure; |
+ return ext.built; |
} |
- // Kludge to make sure the styled element lies behind the selection (by z-index) |
- if (bgClass) |
- wrap.insertBefore(elt("div", null, bgClass + " CodeMirror-linebackground"), wrap.firstChild); |
+ return buildLineContent(cm, lineView); |
+ } |
+ |
+ // Redraw the line's text. Interacts with the background and text |
+ // classes because the mode may output tokens that influence these |
+ // classes. |
+ function updateLineText(cm, lineView) { |
+ var cls = lineView.text.className; |
+ var built = getLineContent(cm, lineView); |
+ if (lineView.text == lineView.node) lineView.node = built.pre; |
+ lineView.text.parentNode.replaceChild(built.pre, lineView.text); |
+ lineView.text = built.pre; |
+ if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { |
+ lineView.bgClass = built.bgClass; |
+ lineView.textClass = built.textClass; |
+ updateLineClasses(lineView); |
+ } else if (cls) { |
+ lineView.text.className = cls; |
+ } |
+ } |
+ |
+ function updateLineClasses(lineView) { |
+ updateLineBackground(lineView); |
+ if (lineView.line.wrapClass) |
+ ensureLineWrapped(lineView).className = lineView.line.wrapClass; |
+ else if (lineView.node != lineView.text) |
+ lineView.node.className = ""; |
+ var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; |
+ lineView.text.className = textClass || ""; |
+ } |
+ |
+ function updateLineGutter(cm, lineView, lineN, dims) { |
+ if (lineView.gutter) { |
+ lineView.node.removeChild(lineView.gutter); |
+ lineView.gutter = null; |
+ } |
+ var markers = lineView.line.gutterMarkers; |
if (cm.options.lineNumbers || markers) { |
- var gutterWrap = wrap.insertBefore(elt("div", null, "CodeMirror-gutter-wrapper", "position: absolute; left: " + |
- (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"), |
- lineElement); |
- if (cm.options.fixedGutter) (wrap.alignable || (wrap.alignable = [])).push(gutterWrap); |
+ var wrap = ensureLineWrapped(lineView); |
+ var gutterWrap = lineView.gutter = |
+ wrap.insertBefore(elt("div", null, "CodeMirror-gutter-wrapper", "position: absolute; left: " + |
+ (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"), |
+ lineView.text); |
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) |
- wrap.lineNumber = gutterWrap.appendChild( |
- elt("div", lineNumberFor(cm.options, lineNo), |
+ lineView.lineNumber = gutterWrap.appendChild( |
+ elt("div", lineNumberFor(cm.options, lineN), |
"CodeMirror-linenumber CodeMirror-gutter-elt", |
"left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: " |
- + display.lineNumInnerWidth + "px")); |
- if (markers) |
- for (var k = 0; k < cm.options.gutters.length; ++k) { |
- var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; |
- if (found) |
- gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + |
- dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px")); |
- } |
+ + cm.display.lineNumInnerWidth + "px")); |
+ if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) { |
+ var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; |
+ if (found) |
+ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + |
+ dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px")); |
+ } |
+ } |
+ } |
+ |
+ function updateLineWidgets(lineView, dims) { |
+ if (lineView.alignable) lineView.alignable = null; |
+ for (var node = lineView.node.firstChild, next; node; node = next) { |
+ var next = node.nextSibling; |
+ if (node.className == "CodeMirror-linewidget") |
+ lineView.node.removeChild(node); |
} |
- if (ie_lt8) wrap.style.zIndex = 2; |
- if (line.widgets && wrap != reuse) for (var i = 0, ws = line.widgets; i < ws.length; ++i) { |
+ insertLineWidgets(lineView, dims); |
+ } |
+ |
+ // Build a line's DOM representation from scratch |
+ function buildLineElement(cm, lineView, lineN, dims) { |
+ var built = getLineContent(cm, lineView); |
+ lineView.text = lineView.node = built.pre; |
+ if (built.bgClass) lineView.bgClass = built.bgClass; |
+ if (built.textClass) lineView.textClass = built.textClass; |
+ |
+ updateLineClasses(lineView); |
+ updateLineGutter(cm, lineView, lineN, dims); |
+ insertLineWidgets(lineView, dims); |
+ return lineView.node; |
+ } |
+ |
+ // A lineView may contain multiple logical lines (when merged by |
+ // collapsed spans). The widgets for all of them need to be drawn. |
+ function insertLineWidgets(lineView, dims) { |
+ insertLineWidgetsFor(lineView.line, lineView, dims, true); |
+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) |
+ insertLineWidgetsFor(lineView.rest[i], lineView, dims, false); |
+ } |
+ |
+ function insertLineWidgetsFor(line, lineView, dims, allowAbove) { |
+ if (!line.widgets) return; |
+ var wrap = ensureLineWrapped(lineView); |
+ for (var i = 0, ws = line.widgets; i < ws.length; ++i) { |
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); |
if (!widget.handleMouseEvents) node.ignoreEvents = true; |
- positionLineWidget(widget, node, wrap, dims); |
- if (widget.above) |
- wrap.insertBefore(node, cm.options.lineNumbers && line.height != 0 ? gutterWrap : lineElement); |
+ positionLineWidget(widget, node, lineView, dims); |
+ if (allowAbove && widget.above) |
+ wrap.insertBefore(node, lineView.gutter || lineView.text); |
else |
wrap.appendChild(node); |
signalLater(widget, "redraw"); |
} |
- return wrap; |
} |
- function positionLineWidget(widget, node, wrap, dims) { |
+ function positionLineWidget(widget, node, lineView, dims) { |
if (widget.noHScroll) { |
- (wrap.alignable || (wrap.alignable = [])).push(node); |
+ (lineView.alignable || (lineView.alignable = [])).push(node); |
var width = dims.wrapperWidth; |
node.style.left = dims.fixedPos + "px"; |
if (!widget.coverGutter) { |
@@ -774,57 +918,367 @@ window.CodeMirror = (function() { |
} |
} |
+ // POSITION OBJECT |
+ |
+ // A Pos instance represents a position within the text. |
+ var Pos = CodeMirror.Pos = function(line, ch) { |
+ if (!(this instanceof Pos)) return new Pos(line, ch); |
+ this.line = line; this.ch = ch; |
+ }; |
+ |
+ // Compare two positions, return 0 if they are the same, a negative |
+ // number when a is less, and a positive number otherwise. |
+ var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; }; |
+ |
+ function copyPos(x) {return Pos(x.line, x.ch);} |
+ function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; } |
+ function minPos(a, b) { return cmp(a, b) < 0 ? a : b; } |
+ |
// SELECTION / CURSOR |
+ // Selection objects are immutable. A new one is created every time |
+ // the selection changes. A selection is one or more non-overlapping |
+ // (and non-touching) ranges, sorted, and an integer that indicates |
+ // which one is the primary selection (the one that's scrolled into |
+ // view, that getCursor returns, etc). |
+ function Selection(ranges, primIndex) { |
+ this.ranges = ranges; |
+ this.primIndex = primIndex; |
+ } |
+ |
+ Selection.prototype = { |
+ primary: function() { return this.ranges[this.primIndex]; }, |
+ equals: function(other) { |
+ if (other == this) return true; |
+ if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false; |
+ for (var i = 0; i < this.ranges.length; i++) { |
+ var here = this.ranges[i], there = other.ranges[i]; |
+ if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false; |
+ } |
+ return true; |
+ }, |
+ deepCopy: function() { |
+ for (var out = [], i = 0; i < this.ranges.length; i++) |
+ out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); |
+ return new Selection(out, this.primIndex); |
+ }, |
+ somethingSelected: function() { |
+ for (var i = 0; i < this.ranges.length; i++) |
+ if (!this.ranges[i].empty()) return true; |
+ return false; |
+ }, |
+ contains: function(pos, end) { |
+ if (!end) end = pos; |
+ for (var i = 0; i < this.ranges.length; i++) { |
+ var range = this.ranges[i]; |
+ if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) |
+ return i; |
+ } |
+ return -1; |
+ } |
+ }; |
+ |
+ function Range(anchor, head) { |
+ this.anchor = anchor; this.head = head; |
+ } |
+ |
+ Range.prototype = { |
+ from: function() { return minPos(this.anchor, this.head); }, |
+ to: function() { return maxPos(this.anchor, this.head); }, |
+ empty: function() { |
+ return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch; |
+ } |
+ }; |
+ |
+ // Take an unsorted, potentially overlapping set of ranges, and |
+ // build a selection out of it. 'Consumes' ranges array (modifying |
+ // it). |
+ function normalizeSelection(ranges, primIndex) { |
+ var prim = ranges[primIndex]; |
+ ranges.sort(function(a, b) { return cmp(a.from(), b.from()); }); |
+ primIndex = indexOf(ranges, prim); |
+ for (var i = 1; i < ranges.length; i++) { |
+ var cur = ranges[i], prev = ranges[i - 1]; |
+ if (cmp(prev.to(), cur.from()) >= 0) { |
+ var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); |
+ var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; |
+ if (i <= primIndex) --primIndex; |
+ ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); |
+ } |
+ } |
+ return new Selection(ranges, primIndex); |
+ } |
+ |
+ function simpleSelection(anchor, head) { |
+ return new Selection([new Range(anchor, head || anchor)], 0); |
+ } |
+ |
+ // Most of the external API clips given positions to make sure they |
+ // actually exist within the document. |
+ function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));} |
+ function clipPos(doc, pos) { |
+ if (pos.line < doc.first) return Pos(doc.first, 0); |
+ var last = doc.first + doc.size - 1; |
+ if (pos.line > last) return Pos(last, getLine(doc, last).text.length); |
+ return clipToLen(pos, getLine(doc, pos.line).text.length); |
+ } |
+ function clipToLen(pos, linelen) { |
+ var ch = pos.ch; |
+ if (ch == null || ch > linelen) return Pos(pos.line, linelen); |
+ else if (ch < 0) return Pos(pos.line, 0); |
+ else return pos; |
+ } |
+ function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;} |
+ function clipPosArray(doc, array) { |
+ for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]); |
+ return out; |
+ } |
+ |
+ // SELECTION UPDATES |
+ |
+ // The 'scroll' parameter given to many of these indicated whether |
+ // the new cursor position should be scrolled into view after |
+ // modifying the selection. |
+ |
+ // If shift is held or the extend flag is set, extends a range to |
+ // include a given position (and optionally a second position). |
+ // Otherwise, simply returns the range between the given positions. |
+ // Used for cursor motion and such. |
+ function extendRange(doc, range, head, other) { |
+ if (doc.cm && doc.cm.display.shift || doc.extend) { |
+ var anchor = range.anchor; |
+ if (other) { |
+ var posBefore = cmp(head, anchor) < 0; |
+ if (posBefore != (cmp(other, anchor) < 0)) { |
+ anchor = head; |
+ head = other; |
+ } else if (posBefore != (cmp(head, other) < 0)) { |
+ head = other; |
+ } |
+ } |
+ return new Range(anchor, head); |
+ } else { |
+ return new Range(other || head, head); |
+ } |
+ } |
+ |
+ // Extend the primary selection range, discard the rest. |
+ function extendSelection(doc, head, other, options) { |
+ setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options); |
+ } |
+ |
+ // Extend all selections (pos is an array of selections with length |
+ // equal the number of selections) |
+ function extendSelections(doc, heads, options) { |
+ for (var out = [], i = 0; i < doc.sel.ranges.length; i++) |
+ out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null); |
+ var newSel = normalizeSelection(out, doc.sel.primIndex); |
+ setSelection(doc, newSel, options); |
+ } |
+ |
+ // Updates a single range in the selection. |
+ function replaceOneSelection(doc, i, range, options) { |
+ var ranges = doc.sel.ranges.slice(0); |
+ ranges[i] = range; |
+ setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options); |
+ } |
+ |
+ // Reset the selection to a single range. |
+ function setSimpleSelection(doc, anchor, head, options) { |
+ setSelection(doc, simpleSelection(anchor, head), options); |
+ } |
+ |
+ // Give beforeSelectionChange handlers a change to influence a |
+ // selection update. |
+ function filterSelectionChange(doc, sel) { |
+ var obj = { |
+ ranges: sel.ranges, |
+ update: function(ranges) { |
+ this.ranges = []; |
+ for (var i = 0; i < ranges.length; i++) |
+ this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), |
+ clipPos(doc, ranges[i].head)); |
+ } |
+ }; |
+ signal(doc, "beforeSelectionChange", doc, obj); |
+ if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); |
+ if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1); |
+ else return sel; |
+ } |
+ |
+ function setSelectionReplaceHistory(doc, sel, options) { |
+ var done = doc.history.done, last = lst(done); |
+ if (last && last.ranges) { |
+ done[done.length - 1] = sel; |
+ setSelectionNoUndo(doc, sel, options); |
+ } else { |
+ setSelection(doc, sel, options); |
+ } |
+ } |
+ |
+ // Set a new selection. |
+ function setSelection(doc, sel, options) { |
+ setSelectionNoUndo(doc, sel, options); |
+ addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); |
+ } |
+ |
+ function setSelectionNoUndo(doc, sel, options) { |
+ if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) |
+ sel = filterSelectionChange(doc, sel); |
+ |
+ var bias = cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1; |
+ setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); |
+ |
+ if (!(options && options.scroll === false) && doc.cm) |
+ ensureCursorVisible(doc.cm); |
+ } |
+ |
+ function setSelectionInner(doc, sel) { |
+ if (sel.equals(doc.sel)) return; |
+ |
+ doc.sel = sel; |
+ |
+ if (doc.cm) |
+ doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = |
+ doc.cm.curOp.cursorActivity = true; |
+ signalLater(doc, "cursorActivity", doc); |
+ } |
+ |
+ // Verify that the selection does not partially select any atomic |
+ // marked ranges. |
+ function reCheckSelection(doc) { |
+ setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll); |
+ } |
+ |
+ // Return a selection that does not partially select any atomic |
+ // ranges. |
+ function skipAtomicInSelection(doc, sel, bias, mayClear) { |
+ var out; |
+ for (var i = 0; i < sel.ranges.length; i++) { |
+ var range = sel.ranges[i]; |
+ var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear); |
+ var newHead = skipAtomic(doc, range.head, bias, mayClear); |
+ if (out || newAnchor != range.anchor || newHead != range.head) { |
+ if (!out) out = sel.ranges.slice(0, i); |
+ out[i] = new Range(newAnchor, newHead); |
+ } |
+ } |
+ return out ? normalizeSelection(out, sel.primIndex) : sel; |
+ } |
+ |
+ // Ensure a given position is not inside an atomic range. |
+ function skipAtomic(doc, pos, bias, mayClear) { |
+ var flipped = false, curPos = pos; |
+ var dir = bias || 1; |
+ doc.cantEdit = false; |
+ search: for (;;) { |
+ var line = getLine(doc, curPos.line); |
+ if (line.markedSpans) { |
+ for (var i = 0; i < line.markedSpans.length; ++i) { |
+ var sp = line.markedSpans[i], m = sp.marker; |
+ if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) && |
+ (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) { |
+ if (mayClear) { |
+ signal(m, "beforeCursorEnter"); |
+ if (m.explicitlyCleared) { |
+ if (!line.markedSpans) break; |
+ else {--i; continue;} |
+ } |
+ } |
+ if (!m.atomic) continue; |
+ var newPos = m.find(dir < 0 ? -1 : 1); |
+ if (cmp(newPos, curPos) == 0) { |
+ newPos.ch += dir; |
+ if (newPos.ch < 0) { |
+ if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1)); |
+ else newPos = null; |
+ } else if (newPos.ch > line.text.length) { |
+ if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0); |
+ else newPos = null; |
+ } |
+ if (!newPos) { |
+ if (flipped) { |
+ // Driven in a corner -- no valid cursor position found at all |
+ // -- try again *with* clearing, if we didn't already |
+ if (!mayClear) return skipAtomic(doc, pos, bias, true); |
+ // Otherwise, turn off editing until further notice, and return the start of the doc |
+ doc.cantEdit = true; |
+ return Pos(doc.first, 0); |
+ } |
+ flipped = true; newPos = pos; dir = -dir; |
+ } |
+ } |
+ curPos = newPos; |
+ continue search; |
+ } |
+ } |
+ } |
+ return curPos; |
+ } |
+ } |
+ |
+ // SELECTION DRAWING |
+ |
+ // Redraw the selection and/or cursor |
function updateSelection(cm) { |
- var display = cm.display; |
- var collapsed = posEq(cm.doc.sel.from, cm.doc.sel.to); |
- if (collapsed || cm.options.showCursorWhenSelecting) |
- updateSelectionCursor(cm); |
- else |
- display.cursor.style.display = display.otherCursor.style.display = "none"; |
- if (!collapsed) |
- updateSelectionRange(cm); |
- else |
- display.selectionDiv.style.display = "none"; |
+ var display = cm.display, doc = cm.doc; |
+ var curFragment = document.createDocumentFragment(); |
+ var selFragment = document.createDocumentFragment(); |
+ |
+ for (var i = 0; i < doc.sel.ranges.length; i++) { |
+ var range = doc.sel.ranges[i]; |
+ var collapsed = range.empty(); |
+ if (collapsed || cm.options.showCursorWhenSelecting) |
+ updateSelectionCursor(cm, range, curFragment); |
+ if (!collapsed) |
+ updateSelectionRange(cm, range, selFragment); |
+ } |
// Move the hidden textarea near the cursor to prevent scrolling artifacts |
if (cm.options.moveInputWithCursor) { |
- var headPos = cursorCoords(cm, cm.doc.sel.head, "div"); |
- var wrapOff = getRect(display.wrapper), lineOff = getRect(display.lineDiv); |
- display.inputDiv.style.top = Math.max(0, Math.min(display.wrapper.clientHeight - 10, |
- headPos.top + lineOff.top - wrapOff.top)) + "px"; |
- display.inputDiv.style.left = Math.max(0, Math.min(display.wrapper.clientWidth - 10, |
- headPos.left + lineOff.left - wrapOff.left)) + "px"; |
+ var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); |
+ var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); |
+ var top = Math.max(0, Math.min(display.wrapper.clientHeight - 10, |
+ headPos.top + lineOff.top - wrapOff.top)); |
+ var left = Math.max(0, Math.min(display.wrapper.clientWidth - 10, |
+ headPos.left + lineOff.left - wrapOff.left)); |
+ display.inputDiv.style.top = top + "px"; |
+ display.inputDiv.style.left = left + "px"; |
} |
+ |
+ removeChildrenAndAdd(display.cursorDiv, curFragment); |
+ removeChildrenAndAdd(display.selectionDiv, selFragment); |
} |
- // No selection, plain cursor |
- function updateSelectionCursor(cm) { |
- var display = cm.display, pos = cursorCoords(cm, cm.doc.sel.head, "div"); |
- display.cursor.style.left = pos.left + "px"; |
- display.cursor.style.top = pos.top + "px"; |
- display.cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; |
- display.cursor.style.display = ""; |
+ // Draws a cursor for the given range |
+ function updateSelectionCursor(cm, range, output) { |
+ var pos = cursorCoords(cm, range.head, "div"); |
+ |
+ var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); |
+ cursor.style.left = pos.left + "px"; |
+ cursor.style.top = pos.top + "px"; |
+ cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; |
if (pos.other) { |
- display.otherCursor.style.display = ""; |
- display.otherCursor.style.left = pos.other.left + "px"; |
- display.otherCursor.style.top = pos.other.top + "px"; |
- display.otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; |
- } else { display.otherCursor.style.display = "none"; } |
+ // Secondary cursor, shown when on a 'jump' in bi-directional text |
+ var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); |
+ otherCursor.style.display = ""; |
+ otherCursor.style.left = pos.other.left + "px"; |
+ otherCursor.style.top = pos.other.top + "px"; |
+ otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; |
+ } |
} |
- // Highlight selection |
- function updateSelectionRange(cm) { |
- var display = cm.display, doc = cm.doc, sel = cm.doc.sel; |
+ // Draws the given range as a highlighted selection |
+ function updateSelectionRange(cm, range, output) { |
+ var display = cm.display, doc = cm.doc; |
var fragment = document.createDocumentFragment(); |
- var clientWidth = display.lineSpace.offsetWidth, pl = paddingLeft(cm.display); |
+ var padding = paddingH(cm.display), leftSide = padding.left, rightSide = display.lineSpace.offsetWidth - padding.right; |
function add(left, top, width, bottom) { |
if (top < 0) top = 0; |
fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left + |
- "px; top: " + top + "px; width: " + (width == null ? clientWidth - left : width) + |
+ "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) + |
"px; height: " + (bottom - top) + "px")); |
} |
@@ -847,44 +1301,44 @@ window.CodeMirror = (function() { |
left = leftPos.left; |
right = rightPos.right; |
} |
- if (fromArg == null && from == 0) left = pl; |
+ if (fromArg == null && from == 0) left = leftSide; |
if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part |
add(left, leftPos.top, null, leftPos.bottom); |
- left = pl; |
+ left = leftSide; |
if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); |
} |
- if (toArg == null && to == lineLen) right = clientWidth; |
+ if (toArg == null && to == lineLen) right = rightSide; |
if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) |
start = leftPos; |
if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) |
end = rightPos; |
- if (left < pl + 1) left = pl; |
+ if (left < leftSide + 1) left = leftSide; |
add(left, rightPos.top, right - left, rightPos.bottom); |
}); |
return {start: start, end: end}; |
} |
- if (sel.from.line == sel.to.line) { |
- drawForLine(sel.from.line, sel.from.ch, sel.to.ch); |
+ var sFrom = range.from(), sTo = range.to(); |
+ if (sFrom.line == sTo.line) { |
+ drawForLine(sFrom.line, sFrom.ch, sTo.ch); |
} else { |
- var fromLine = getLine(doc, sel.from.line), toLine = getLine(doc, sel.to.line); |
- var singleVLine = visualLine(doc, fromLine) == visualLine(doc, toLine); |
- var leftEnd = drawForLine(sel.from.line, sel.from.ch, singleVLine ? fromLine.text.length : null).end; |
- var rightStart = drawForLine(sel.to.line, singleVLine ? 0 : null, sel.to.ch).start; |
+ var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); |
+ var singleVLine = visualLine(fromLine) == visualLine(toLine); |
+ var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; |
+ var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; |
if (singleVLine) { |
if (leftEnd.top < rightStart.top - 2) { |
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); |
- add(pl, rightStart.top, rightStart.left, rightStart.bottom); |
+ add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); |
} else { |
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); |
} |
} |
if (leftEnd.bottom < rightStart.top) |
- add(pl, leftEnd.bottom, null, rightStart.top); |
+ add(leftSide, leftEnd.bottom, null, rightStart.top); |
} |
- removeChildrenAndAdd(display.selectionDiv, fragment); |
- display.selectionDiv.style.display = ""; |
+ output.appendChild(fragment); |
} |
// Cursor-blinking |
@@ -893,37 +1347,35 @@ window.CodeMirror = (function() { |
var display = cm.display; |
clearInterval(display.blinker); |
var on = true; |
- display.cursor.style.visibility = display.otherCursor.style.visibility = ""; |
+ display.cursorDiv.style.visibility = ""; |
if (cm.options.cursorBlinkRate > 0) |
display.blinker = setInterval(function() { |
- display.cursor.style.visibility = display.otherCursor.style.visibility = (on = !on) ? "" : "hidden"; |
+ display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; |
}, cm.options.cursorBlinkRate); |
} |
// HIGHLIGHT WORKER |
function startWorker(cm, time) { |
- if (cm.doc.mode.startState && cm.doc.frontier < cm.display.showingTo) |
+ if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) |
cm.state.highlight.set(time, bind(highlightWorker, cm)); |
} |
function highlightWorker(cm) { |
var doc = cm.doc; |
if (doc.frontier < doc.first) doc.frontier = doc.first; |
- if (doc.frontier >= cm.display.showingTo) return; |
+ if (doc.frontier >= cm.display.viewTo) return; |
var end = +new Date + cm.options.workTime; |
var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); |
- var changed = [], prevChange; |
- doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.showingTo + 500), function(line) { |
- if (doc.frontier >= cm.display.showingFrom) { // Visible |
+ |
+ runInOp(cm, function() { |
+ doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) { |
+ if (doc.frontier >= cm.display.viewFrom) { // Visible |
var oldStyles = line.styles; |
line.styles = highlightLine(cm, line, state, true); |
var ischange = !oldStyles || oldStyles.length != line.styles.length; |
for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]; |
- if (ischange) { |
- if (prevChange && prevChange.end == doc.frontier) prevChange.end++; |
- else changed.push(prevChange = {start: doc.frontier, end: doc.frontier + 1}); |
- } |
+ if (ischange) regLineChange(cm, doc.frontier, "text"); |
line.stateAfter = copyState(doc.mode, state); |
} else { |
processLine(cm, line.text, state); |
@@ -935,11 +1387,7 @@ window.CodeMirror = (function() { |
return true; |
} |
}); |
- if (changed.length) |
- operation(cm, function() { |
- for (var i = 0; i < changed.length; ++i) |
- regChange(this, changed[i].start, changed[i].end); |
- })(); |
+ }); |
} |
// Finds the line to start with when starting a parse. Tries to |
@@ -971,7 +1419,7 @@ window.CodeMirror = (function() { |
else state = copyState(doc.mode, state); |
doc.iter(pos, n, function(line) { |
processLine(cm, line.text, state); |
- var save = pos == n - 1 || pos % 5 == 0 || pos >= display.showingFrom && pos < display.showingTo; |
+ var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo; |
line.stateAfter = save ? copyState(doc.mode, state) : null; |
++pos; |
}); |
@@ -983,183 +1431,222 @@ window.CodeMirror = (function() { |
function paddingTop(display) {return display.lineSpace.offsetTop;} |
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;} |
- function paddingLeft(display) { |
- var e = removeChildrenAndAdd(display.measure, elt("pre", null, null, "text-align: left")).appendChild(elt("span", "x")); |
- return e.offsetLeft; |
- } |
- |
- function measureChar(cm, line, ch, data, bias) { |
- var dir = -1; |
- data = data || measureLine(cm, line); |
- if (data.crude) { |
- var left = data.left + ch * data.width; |
- return {left: left, right: left + data.width, top: data.top, bottom: data.bottom}; |
- } |
- |
- for (var pos = ch;; pos += dir) { |
- var r = data[pos]; |
- if (r) break; |
- if (dir < 0 && pos == 0) dir = 1; |
- } |
- bias = pos > ch ? "left" : pos < ch ? "right" : bias; |
- if (bias == "left" && r.leftSide) r = r.leftSide; |
- else if (bias == "right" && r.rightSide) r = r.rightSide; |
- return {left: pos < ch ? r.right : r.left, |
- right: pos > ch ? r.left : r.right, |
- top: r.top, |
- bottom: r.bottom}; |
- } |
- |
- function findCachedMeasurement(cm, line) { |
- var cache = cm.display.measureLineCache; |
- for (var i = 0; i < cache.length; ++i) { |
- var memo = cache[i]; |
- if (memo.text == line.text && memo.markedSpans == line.markedSpans && |
- cm.display.scroller.clientWidth == memo.width && |
- memo.classes == line.textClass + "|" + line.wrapClass) |
- return memo; |
- } |
- } |
- |
- function clearCachedMeasurement(cm, line) { |
- var exists = findCachedMeasurement(cm, line); |
- if (exists) exists.text = exists.measure = exists.markedSpans = null; |
- } |
- |
- function measureLine(cm, line) { |
- // First look in the cache |
- var cached = findCachedMeasurement(cm, line); |
- if (cached) return cached.measure; |
- |
- // Failing that, recompute and store result in cache |
- var measure = measureLineInner(cm, line); |
- var cache = cm.display.measureLineCache; |
- var memo = {text: line.text, width: cm.display.scroller.clientWidth, |
- markedSpans: line.markedSpans, measure: measure, |
- classes: line.textClass + "|" + line.wrapClass}; |
- if (cache.length == 16) cache[++cm.display.measureLineCachePos % 16] = memo; |
- else cache.push(memo); |
- return measure; |
- } |
- |
- function measureLineInner(cm, line) { |
- if (!cm.options.lineWrapping && line.text.length >= cm.options.crudeMeasuringFrom) |
- return crudelyMeasureLine(cm, line); |
- |
- var display = cm.display, measure = emptyArray(line.text.length); |
- var pre = buildLineContent(cm, line, measure, true).pre; |
- |
- // IE does not cache element positions of inline elements between |
- // calls to getBoundingClientRect. This makes the loop below, |
- // which gathers the positions of all the characters on the line, |
- // do an amount of layout work quadratic to the number of |
- // characters. When line wrapping is off, we try to improve things |
- // by first subdividing the line into a bunch of inline blocks, so |
- // that IE can reuse most of the layout information from caches |
- // for those blocks. This does interfere with line wrapping, so it |
- // doesn't work when wrapping is on, but in that case the |
- // situation is slightly better, since IE does cache line-wrapping |
- // information and only recomputes per-line. |
- if (old_ie && !ie_lt8 && !cm.options.lineWrapping && pre.childNodes.length > 100) { |
- var fragment = document.createDocumentFragment(); |
- var chunk = 10, n = pre.childNodes.length; |
- for (var i = 0, chunks = Math.ceil(n / chunk); i < chunks; ++i) { |
- var wrap = elt("div", null, null, "display: inline-block"); |
- for (var j = 0; j < chunk && n; ++j) { |
- wrap.appendChild(pre.firstChild); |
- --n; |
+ function paddingH(display) { |
+ if (display.cachedPaddingH) return display.cachedPaddingH; |
+ var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); |
+ var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; |
+ return display.cachedPaddingH = {left: parseInt(style.paddingLeft), |
+ right: parseInt(style.paddingRight)}; |
+ } |
+ |
+ // Ensure the lineView.wrapping.heights array is populated. This is |
+ // an array of bottom offsets for the lines that make up a drawn |
+ // line. When lineWrapping is on, there might be more than one |
+ // height. |
+ function ensureLineHeights(cm, lineView, rect) { |
+ var wrapping = cm.options.lineWrapping; |
+ var curWidth = wrapping && cm.display.scroller.clientWidth; |
+ if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { |
+ var heights = lineView.measure.heights = []; |
+ if (wrapping) { |
+ lineView.measure.width = curWidth; |
+ var rects = lineView.text.firstChild.getClientRects(); |
+ for (var i = 0; i < rects.length - 1; i++) { |
+ var cur = rects[i], next = rects[i + 1]; |
+ if (Math.abs(cur.bottom - next.bottom) > 2) |
+ heights.push((cur.bottom + next.top) / 2 - rect.top); |
} |
- fragment.appendChild(wrap); |
} |
- pre.appendChild(fragment); |
- } |
- |
- removeChildrenAndAdd(display.measure, pre); |
- |
- var outer = getRect(display.lineDiv); |
- var vranges = [], data = emptyArray(line.text.length), maxBot = pre.offsetHeight; |
- // Work around an IE7/8 bug where it will sometimes have randomly |
- // replaced our pre with a clone at this point. |
- if (ie_lt9 && display.measure.first != pre) |
- removeChildrenAndAdd(display.measure, pre); |
+ heights.push(rect.bottom - rect.top); |
+ } |
+ } |
+ |
+ // Find a line map (mapping character offsets to text nodes) and a |
+ // measurement cache for the given line number. (A line view might |
+ // contain multiple lines when collapsed ranges are present.) |
+ function mapFromLineView(lineView, line, lineN) { |
+ if (lineView.line == line) |
+ return {map: lineView.measure.map, cache: lineView.measure.cache}; |
+ for (var i = 0; i < lineView.rest.length; i++) |
+ if (lineView.rest[i] == line) |
+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]}; |
+ for (var i = 0; i < lineView.rest.length; i++) |
+ if (lineNo(lineView.rest[i]) > lineN) |
+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true}; |
+ } |
+ |
+ // Render a line into the hidden node display.externalMeasured. Used |
+ // when measurement is needed for a line that's not in the viewport. |
+ function updateExternalMeasurement(cm, line) { |
+ line = visualLine(line); |
+ var lineN = lineNo(line); |
+ var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); |
+ view.lineN = lineN; |
+ var built = view.built = buildLineContent(cm, view); |
+ view.text = built.pre; |
+ removeChildrenAndAdd(cm.display.lineMeasure, built.pre); |
+ return view; |
+ } |
+ |
+ // Get a {top, bottom, left, right} box (in line-local coordinates) |
+ // for a given character. |
+ function measureChar(cm, line, ch, bias) { |
+ return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias); |
+ } |
+ |
+ // Find a line view that corresponds to the given line number. |
+ function findViewForLine(cm, lineN) { |
+ if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) |
+ return cm.display.view[findViewIndex(cm, lineN)]; |
+ var ext = cm.display.externalMeasured; |
+ if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) |
+ return ext; |
+ } |
+ |
+ // Measurement can be split in two steps, the set-up work that |
+ // applies to the whole line, and the measurement of the actual |
+ // character. Functions like coordsChar, that need to do a lot of |
+ // measurements in a row, can thus ensure that the set-up work is |
+ // only done once. |
+ function prepareMeasureForLine(cm, line) { |
+ var lineN = lineNo(line); |
+ var view = findViewForLine(cm, lineN); |
+ if (view && !view.text) |
+ view = null; |
+ else if (view && view.changes) |
+ updateLineForChanges(cm, view, lineN, getDimensions(cm)); |
+ if (!view) |
+ view = updateExternalMeasurement(cm, line); |
+ |
+ var info = mapFromLineView(view, line, lineN); |
+ return { |
+ line: line, view: view, rect: null, |
+ map: info.map, cache: info.cache, before: info.before, |
+ hasHeights: false |
+ }; |
+ } |
- function measureRect(rect) { |
- var top = rect.top - outer.top, bot = rect.bottom - outer.top; |
- if (bot > maxBot) bot = maxBot; |
- if (top < 0) top = 0; |
- for (var i = vranges.length - 2; i >= 0; i -= 2) { |
- var rtop = vranges[i], rbot = vranges[i+1]; |
- if (rtop > bot || rbot < top) continue; |
- if (rtop <= top && rbot >= bot || |
- top <= rtop && bot >= rbot || |
- Math.min(bot, rbot) - Math.max(top, rtop) >= (bot - top) >> 1) { |
- vranges[i] = Math.min(top, rtop); |
- vranges[i+1] = Math.max(bot, rbot); |
- break; |
- } |
+ // Given a prepared measurement object, measures the position of an |
+ // actual character (or fetches it from the cache). |
+ function measureCharPrepared(cm, prepared, ch, bias) { |
+ if (prepared.before) ch = -1; |
+ var key = ch + (bias || ""), found; |
+ if (prepared.cache.hasOwnProperty(key)) { |
+ found = prepared.cache[key]; |
+ } else { |
+ if (!prepared.rect) |
+ prepared.rect = prepared.view.text.getBoundingClientRect(); |
+ if (!prepared.hasHeights) { |
+ ensureLineHeights(cm, prepared.view, prepared.rect); |
+ prepared.hasHeights = true; |
} |
- if (i < 0) { i = vranges.length; vranges.push(top, bot); } |
- return {left: rect.left - outer.left, |
- right: rect.right - outer.left, |
- top: i, bottom: null}; |
- } |
- function finishRect(rect) { |
- rect.bottom = vranges[rect.top+1]; |
- rect.top = vranges[rect.top]; |
- } |
- |
- for (var i = 0, cur; i < measure.length; ++i) if (cur = measure[i]) { |
- var node = cur, rect = null; |
- // A widget might wrap, needs special care |
- if (/\bCodeMirror-widget\b/.test(cur.className) && cur.getClientRects) { |
- if (cur.firstChild.nodeType == 1) node = cur.firstChild; |
- var rects = node.getClientRects(); |
- if (rects.length > 1) { |
- rect = data[i] = measureRect(rects[0]); |
- rect.rightSide = measureRect(rects[rects.length - 1]); |
- } |
+ found = measureCharInner(cm, prepared, ch, bias); |
+ if (!found.bogus) prepared.cache[key] = found; |
+ } |
+ return {left: found.left, right: found.right, top: found.top, bottom: found.bottom}; |
+ } |
+ |
+ var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; |
+ |
+ function measureCharInner(cm, prepared, ch, bias) { |
+ var map = prepared.map; |
+ |
+ var node, start, end, collapse; |
+ // First, search the line map for the text node corresponding to, |
+ // or closest to, the target character. |
+ for (var i = 0; i < map.length; i += 3) { |
+ var mStart = map[i], mEnd = map[i + 1]; |
+ if (ch < mStart) { |
+ start = 0; end = 1; |
+ collapse = "left"; |
+ } else if (ch < mEnd) { |
+ start = ch - mStart; |
+ end = start + 1; |
+ } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { |
+ end = mEnd - mStart; |
+ start = end - 1; |
+ if (ch >= mEnd) collapse = "right"; |
+ } |
+ if (start != null) { |
+ node = map[i + 2]; |
+ if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) |
+ collapse = bias; |
+ if (bias == "left" && start == 0) |
+ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { |
+ node = map[(i -= 3) + 2]; |
+ collapse = "left"; |
+ } |
+ if (bias == "right" && start == mEnd - mStart) |
+ while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { |
+ node = map[(i += 3) + 2]; |
+ collapse = "right"; |
+ } |
+ break; |
} |
- if (!rect) rect = data[i] = measureRect(getRect(node)); |
- if (cur.measureRight) rect.right = getRect(cur.measureRight).left - outer.left; |
- if (cur.leftSide) rect.leftSide = measureRect(getRect(cur.leftSide)); |
- } |
- removeChildren(cm.display.measure); |
- for (var i = 0, cur; i < data.length; ++i) if (cur = data[i]) { |
- finishRect(cur); |
- if (cur.leftSide) finishRect(cur.leftSide); |
- if (cur.rightSide) finishRect(cur.rightSide); |
} |
- return data; |
- } |
- function crudelyMeasureLine(cm, line) { |
- var copy = new Line(line.text.slice(0, 100), null); |
- if (line.textClass) copy.textClass = line.textClass; |
- var measure = measureLineInner(cm, copy); |
- var left = measureChar(cm, copy, 0, measure, "left"); |
- var right = measureChar(cm, copy, 99, measure, "right"); |
- return {crude: true, top: left.top, left: left.left, bottom: left.bottom, width: (right.right - left.left) / 100}; |
+ var rect; |
+ if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. |
+ while (start && isExtendingChar(prepared.line.text.charAt(mStart + start))) --start; |
+ while (mStart + end < mEnd && isExtendingChar(prepared.line.text.charAt(mStart + end))) ++end; |
+ if (ie_upto8 && start == 0 && end == mEnd - mStart) { |
+ rect = node.parentNode.getBoundingClientRect(); |
+ } else if (ie && cm.options.lineWrapping) { |
+ var rects = range(node, start, end).getClientRects(); |
+ if (rects.length) |
+ rect = rects[bias == "right" ? rects.length - 1 : 0]; |
+ else |
+ rect = nullRect; |
+ } else { |
+ rect = range(node, start, end).getBoundingClientRect(); |
+ } |
+ } else { // If it is a widget, simply get the box for the whole widget. |
+ if (start > 0) collapse = bias = "right"; |
+ var rects; |
+ if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) |
+ rect = rects[bias == "right" ? rects.length - 1 : 0]; |
+ else |
+ rect = node.getBoundingClientRect(); |
+ } |
+ if (ie_upto8 && !start && (!rect || !rect.left && !rect.right)) { |
+ var rSpan = node.parentNode.getClientRects()[0]; |
+ if (rSpan) |
+ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; |
+ else |
+ rect = nullRect; |
+ } |
+ |
+ var top, bot = (rect.bottom + rect.top) / 2 - prepared.rect.top; |
+ var heights = prepared.view.measure.heights; |
+ for (var i = 0; i < heights.length - 1; i++) |
+ if (bot < heights[i]) break; |
+ top = i ? heights[i - 1] : 0; bot = heights[i]; |
+ var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, |
+ right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, |
+ top: top, bottom: bot}; |
+ if (!rect.left && !rect.right) result.bogus = true; |
+ return result; |
} |
- function measureLineWidth(cm, line) { |
- var hasBadSpan = false; |
- if (line.markedSpans) for (var i = 0; i < line.markedSpans; ++i) { |
- var sp = line.markedSpans[i]; |
- if (sp.collapsed && (sp.to == null || sp.to == line.text.length)) hasBadSpan = true; |
+ function clearLineMeasurementCacheFor(lineView) { |
+ if (lineView.measure) { |
+ lineView.measure.cache = {}; |
+ lineView.measure.heights = null; |
+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) |
+ lineView.measure.caches[i] = {}; |
} |
- var cached = !hasBadSpan && findCachedMeasurement(cm, line); |
- if (cached || line.text.length >= cm.options.crudeMeasuringFrom) |
- return measureChar(cm, line, line.text.length, cached && cached.measure, "right").right; |
+ } |
- var pre = buildLineContent(cm, line, null, true).pre; |
- var end = pre.appendChild(zeroWidthElement(cm.display.measure)); |
- removeChildrenAndAdd(cm.display.measure, pre); |
- return getRect(end).right - getRect(cm.display.lineDiv).left; |
+ function clearLineMeasurementCache(cm) { |
+ cm.display.externalMeasure = null; |
+ removeChildren(cm.display.lineMeasure); |
+ for (var i = 0; i < cm.display.view.length; i++) |
+ clearLineMeasurementCacheFor(cm.display.view[i]); |
} |
function clearCaches(cm) { |
- cm.display.measureLineCache.length = cm.display.measureLineCachePos = 0; |
- cm.display.cachedCharWidth = cm.display.cachedTextHeight = null; |
+ clearLineMeasurementCache(cm); |
+ cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; |
if (!cm.options.lineWrapping) cm.display.maxLineChanged = true; |
cm.display.lineNumChars = null; |
} |
@@ -1167,7 +1654,9 @@ window.CodeMirror = (function() { |
function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } |
function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } |
- // Context is one of "line", "div" (display.lineDiv), "local"/null (editor), or "page" |
+ // Converts a {top, bottom, left, right} box from line-local |
+ // coordinates into another coordinate system. Context may be one of |
+ // "line", "div" (display.lineDiv), "local"/null (editor), or "page". |
function intoCoordSystem(cm, lineObj, rect, context) { |
if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { |
var size = widgetHeight(lineObj.widgets[i]); |
@@ -1175,11 +1664,11 @@ window.CodeMirror = (function() { |
} |
if (context == "line") return rect; |
if (!context) context = "local"; |
- var yOff = heightAtLine(cm, lineObj); |
+ var yOff = heightAtLine(lineObj); |
if (context == "local") yOff += paddingTop(cm.display); |
else yOff -= cm.display.viewOffset; |
if (context == "page" || context == "window") { |
- var lOff = getRect(cm.display.lineSpace); |
+ var lOff = cm.display.lineSpace.getBoundingClientRect(); |
yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); |
var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); |
rect.left += xOff; rect.right += xOff; |
@@ -1188,8 +1677,8 @@ window.CodeMirror = (function() { |
return rect; |
} |
- // Context may be "window", "page", "div", or "local"/null |
- // Result is in "div" coords |
+ // Coverts a box from "div" coords to another coordinate system. |
+ // Context may be "window", "page", "div", or "local"/null. |
function fromCoordSystem(cm, coords, context) { |
if (context == "div") return coords; |
var left = coords.left, top = coords.top; |
@@ -1198,25 +1687,28 @@ window.CodeMirror = (function() { |
left -= pageScrollX(); |
top -= pageScrollY(); |
} else if (context == "local" || !context) { |
- var localBox = getRect(cm.display.sizer); |
+ var localBox = cm.display.sizer.getBoundingClientRect(); |
left += localBox.left; |
top += localBox.top; |
} |
- var lineSpaceBox = getRect(cm.display.lineSpace); |
+ var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); |
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}; |
} |
function charCoords(cm, pos, context, lineObj, bias) { |
if (!lineObj) lineObj = getLine(cm.doc, pos.line); |
- return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, null, bias), context); |
+ return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context); |
} |
- function cursorCoords(cm, pos, context, lineObj, measurement) { |
+ // Returns a box for a given cursor position, which may have an |
+ // 'other' property containing the position of the secondary cursor |
+ // on a bidi boundary. |
+ function cursorCoords(cm, pos, context, lineObj, preparedMeasure) { |
lineObj = lineObj || getLine(cm.doc, pos.line); |
- if (!measurement) measurement = measureLine(cm, lineObj); |
+ if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj); |
function get(ch, right) { |
- var m = measureChar(cm, lineObj, ch, measurement, right ? "right" : "left"); |
+ var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left"); |
if (right) m.left = m.right; else m.right = m.left; |
return intoCoordSystem(cm, lineObj, m, context); |
} |
@@ -1242,43 +1734,59 @@ window.CodeMirror = (function() { |
return val; |
} |
+ // Used to cheaply estimate the coordinates for a position. Used for |
+ // intermediate scroll updates. |
+ function estimateCoords(cm, pos) { |
+ var left = 0, pos = clipPos(cm.doc, pos); |
+ if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch; |
+ var lineObj = getLine(cm.doc, pos.line); |
+ var top = heightAtLine(lineObj) + paddingTop(cm.display); |
+ return {left: left, right: left, top: top, bottom: top + lineObj.height}; |
+ } |
+ |
+ // Positions returned by coordsChar contain some extra information. |
+ // xRel is the relative x position of the input coordinates compared |
+ // to the found position (so xRel > 0 means the coordinates are to |
+ // the right of the character position, for example). When outside |
+ // is true, that means the coordinates lie outside the line's |
+ // vertical range. |
function PosWithInfo(line, ch, outside, xRel) { |
- var pos = new Pos(line, ch); |
+ var pos = Pos(line, ch); |
pos.xRel = xRel; |
if (outside) pos.outside = true; |
return pos; |
} |
- // Coords must be lineSpace-local |
+ // Compute the character position closest to the given coordinates. |
+ // Input must be lineSpace-local ("div" coordinate system). |
function coordsChar(cm, x, y) { |
var doc = cm.doc; |
y += cm.display.viewOffset; |
if (y < 0) return PosWithInfo(doc.first, 0, true, -1); |
- var lineNo = lineAtHeight(doc, y), last = doc.first + doc.size - 1; |
- if (lineNo > last) |
+ var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; |
+ if (lineN > last) |
return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1); |
if (x < 0) x = 0; |
+ var lineObj = getLine(doc, lineN); |
for (;;) { |
- var lineObj = getLine(doc, lineNo); |
- var found = coordsCharInner(cm, lineObj, lineNo, x, y); |
+ var found = coordsCharInner(cm, lineObj, lineN, x, y); |
var merged = collapsedSpanAtEnd(lineObj); |
- var mergedPos = merged && merged.find(); |
+ var mergedPos = merged && merged.find(0, true); |
if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) |
- lineNo = mergedPos.to.line; |
+ lineN = lineNo(lineObj = mergedPos.to.line); |
else |
return found; |
} |
} |
function coordsCharInner(cm, lineObj, lineNo, x, y) { |
- var innerOff = y - heightAtLine(cm, lineObj); |
+ var innerOff = y - heightAtLine(lineObj); |
var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; |
- var measurement = measureLine(cm, lineObj); |
+ var preparedMeasure = prepareMeasureForLine(cm, lineObj); |
function getX(ch) { |
- var sp = cursorCoords(cm, Pos(lineNo, ch), "line", |
- lineObj, measurement); |
+ var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure); |
wrongLine = true; |
if (innerOff > sp.bottom) return sp.left - adjust; |
else if (innerOff < sp.top) return sp.left + adjust; |
@@ -1298,7 +1806,7 @@ window.CodeMirror = (function() { |
var xDiff = x - (ch == from ? fromX : toX); |
while (isExtendingChar(lineObj.text.charAt(ch))) ++ch; |
var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside, |
- xDiff < 0 ? -1 : xDiff ? 1 : 0); |
+ xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0); |
return pos; |
} |
var step = Math.ceil(dist / 2), middle = from + step; |
@@ -1313,6 +1821,7 @@ window.CodeMirror = (function() { |
} |
var measureText; |
+ // Compute the default text height. |
function textHeight(display) { |
if (display.cachedTextHeight != null) return display.cachedTextHeight; |
if (measureText == null) { |
@@ -1332,84 +1841,88 @@ window.CodeMirror = (function() { |
return height || 1; |
} |
+ // Compute the default character width. |
function charWidth(display) { |
if (display.cachedCharWidth != null) return display.cachedCharWidth; |
- var anchor = elt("span", "x"); |
+ var anchor = elt("span", "xxxxxxxxxx"); |
var pre = elt("pre", [anchor]); |
removeChildrenAndAdd(display.measure, pre); |
- var width = anchor.offsetWidth; |
+ var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; |
if (width > 2) display.cachedCharWidth = width; |
return width || 10; |
} |
// OPERATIONS |
- // Operations are used to wrap changes in such a way that each |
- // change won't have to update the cursor and display (which would |
- // be awkward, slow, and error-prone), but instead updates are |
- // batched and then all combined and executed at once. |
+ // Operations are used to wrap a series of changes to the editor |
+ // state in such a way that each change won't have to update the |
+ // cursor and display (which would be awkward, slow, and |
+ // error-prone). Instead, display updates are batched and then all |
+ // combined and executed at once. |
var nextOpId = 0; |
+ // Start a new operation. |
function startOperation(cm) { |
cm.curOp = { |
- // An array of ranges of lines that have to be updated. See |
- // updateDisplay. |
- changes: [], |
- forceUpdate: false, |
- updateInput: null, |
- userSelChange: null, |
- textChanged: null, |
- selectionChanged: false, |
- cursorActivity: false, |
- updateMaxLine: false, |
- updateScrollPos: false, |
- id: ++nextOpId |
+ viewChanged: false, // Flag that indicates that lines might need to be redrawn |
+ startHeight: cm.doc.height, // Used to detect need to update scrollbar |
+ forceUpdate: false, // Used to force a redraw |
+ updateInput: null, // Whether to reset the input textarea |
+ typing: false, // Whether this reset should be careful to leave existing text (for compositing) |
+ changeObjs: null, // Accumulated changes, for firing change events |
+ cursorActivity: false, // Whether to fire a cursorActivity event |
+ selectionChanged: false, // Whether the selection needs to be redrawn |
+ updateMaxLine: false, // Set when the widest line needs to be determined anew |
+ scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet |
+ scrollToPos: null, // Used to scroll to a specific position |
+ id: ++nextOpId // Unique ID |
}; |
if (!delayedCallbackDepth++) delayedCallbacks = []; |
} |
+ // Finish an operation, updating the display and signalling delayed events |
function endOperation(cm) { |
var op = cm.curOp, doc = cm.doc, display = cm.display; |
cm.curOp = null; |
- if (op.updateMaxLine) computeMaxLength(cm); |
- if (display.maxLineChanged && !cm.options.lineWrapping && display.maxLine) { |
- var width = measureLineWidth(cm, display.maxLine); |
- display.sizer.style.minWidth = Math.max(0, width + 3 + scrollerCutOff) + "px"; |
- display.maxLineChanged = false; |
- var maxScrollLeft = Math.max(0, display.sizer.offsetLeft + display.sizer.offsetWidth - display.scroller.clientWidth); |
- if (maxScrollLeft < doc.scrollLeft && !op.updateScrollPos) |
- setScrollLeft(cm, Math.min(display.scroller.scrollLeft, maxScrollLeft), true); |
- } |
- var newScrollPos, updated; |
- if (op.updateScrollPos) { |
- newScrollPos = op.updateScrollPos; |
- } else if (op.selectionChanged && display.scroller.clientHeight) { // don't rescroll if not visible |
- var coords = cursorCoords(cm, doc.sel.head); |
- newScrollPos = calculateScrollPos(cm, coords.left, coords.top, coords.left, coords.bottom); |
- } |
- if (op.changes.length || op.forceUpdate || newScrollPos && newScrollPos.scrollTop != null) { |
- updated = updateDisplay(cm, op.changes, newScrollPos && newScrollPos.scrollTop, op.forceUpdate); |
+ if (op.updateMaxLine) findMaxLine(cm); |
+ |
+ // If it looks like an update might be needed, call updateDisplay |
+ if (op.viewChanged || op.forceUpdate || op.scrollTop != null || |
+ op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || |
+ op.scrollToPos.to.line >= display.viewTo) || |
+ display.maxLineChanged && cm.options.lineWrapping) { |
+ var updated = updateDisplay(cm, {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); |
if (cm.display.scroller.offsetHeight) cm.doc.scrollTop = cm.display.scroller.scrollTop; |
} |
+ // If no update was run, but the selection changed, redraw that. |
if (!updated && op.selectionChanged) updateSelection(cm); |
- if (op.updateScrollPos) { |
- var top = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, newScrollPos.scrollTop)); |
- var left = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, newScrollPos.scrollLeft)); |
+ if (!updated && op.startHeight != cm.doc.height) updateScrollbars(cm); |
+ |
+ // Propagate the scroll position to the actual DOM scroller |
+ if (op.scrollTop != null && display.scroller.scrollTop != op.scrollTop) { |
+ var top = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)); |
display.scroller.scrollTop = display.scrollbarV.scrollTop = doc.scrollTop = top; |
+ } |
+ if (op.scrollLeft != null && display.scroller.scrollLeft != op.scrollLeft) { |
+ var left = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft)); |
display.scroller.scrollLeft = display.scrollbarH.scrollLeft = doc.scrollLeft = left; |
alignHorizontally(cm); |
- if (op.scrollToPos) |
- scrollPosIntoView(cm, clipPos(cm.doc, op.scrollToPos.from), |
- clipPos(cm.doc, op.scrollToPos.to), op.scrollToPos.margin); |
- } else if (newScrollPos) { |
- scrollCursorIntoView(cm); |
} |
+ // If we need to scroll a specific position into view, do so. |
+ if (op.scrollToPos) { |
+ var coords = scrollPosIntoView(cm, clipPos(cm.doc, op.scrollToPos.from), |
+ clipPos(cm.doc, op.scrollToPos.to), op.scrollToPos.margin); |
+ if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords); |
+ } |
+ |
if (op.selectionChanged) restartBlink(cm); |
if (cm.state.focused && op.updateInput) |
- resetInput(cm, op.userSelChange); |
+ resetInput(cm, op.typing); |
+ // Fire events for markers that are hidden/unidden by editing or |
+ // undoing |
var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; |
if (hidden) for (var i = 0; i < hidden.length; ++i) |
if (!hidden[i].lines.length) signal(hidden[i], "hide"); |
@@ -1421,47 +1934,242 @@ window.CodeMirror = (function() { |
delayed = delayedCallbacks; |
delayedCallbacks = null; |
} |
- if (op.textChanged) |
- signal(cm, "change", cm, op.textChanged); |
+ // Fire change events, and delayed event handlers |
+ if (op.changeObjs) { |
+ for (var i = 0; i < op.changeObjs.length; i++) |
+ signal(cm, "change", cm, op.changeObjs[i]); |
+ signal(cm, "changes", cm, op.changeObjs); |
+ } |
if (op.cursorActivity) signal(cm, "cursorActivity", cm); |
if (delayed) for (var i = 0; i < delayed.length; ++i) delayed[i](); |
} |
+ // Run the given function in an operation |
+ function runInOp(cm, f) { |
+ if (cm.curOp) return f(); |
+ startOperation(cm); |
+ try { return f(); } |
+ finally { endOperation(cm); } |
+ } |
// Wraps a function in an operation. Returns the wrapped function. |
- function operation(cm1, f) { |
+ function operation(cm, f) { |
+ return function() { |
+ if (cm.curOp) return f.apply(cm, arguments); |
+ startOperation(cm); |
+ try { return f.apply(cm, arguments); } |
+ finally { endOperation(cm); } |
+ }; |
+ } |
+ // Used to add methods to editor and doc instances, wrapping them in |
+ // operations. |
+ function methodOp(f) { |
return function() { |
- var cm = cm1 || this, withOp = !cm.curOp; |
- if (withOp) startOperation(cm); |
- try { var result = f.apply(cm, arguments); } |
- finally { if (withOp) endOperation(cm); } |
- return result; |
+ if (this.curOp) return f.apply(this, arguments); |
+ startOperation(this); |
+ try { return f.apply(this, arguments); } |
+ finally { endOperation(this); } |
}; |
} |
- function docOperation(f) { |
+ function docMethodOp(f) { |
return function() { |
- var withOp = this.cm && !this.cm.curOp, result; |
- if (withOp) startOperation(this.cm); |
- try { result = f.apply(this, arguments); } |
- finally { if (withOp) endOperation(this.cm); } |
- return result; |
+ var cm = this.cm; |
+ if (!cm || cm.curOp) return f.apply(this, arguments); |
+ startOperation(cm); |
+ try { return f.apply(this, arguments); } |
+ finally { endOperation(cm); } |
}; |
} |
- function runInOp(cm, f) { |
- var withOp = !cm.curOp, result; |
- if (withOp) startOperation(cm); |
- try { result = f(); } |
- finally { if (withOp) endOperation(cm); } |
- return result; |
+ |
+ // VIEW TRACKING |
+ |
+ // These objects are used to represent the visible (currently drawn) |
+ // part of the document. A LineView may correspond to multiple |
+ // logical lines, if those are connected by collapsed ranges. |
+ function LineView(doc, line, lineN) { |
+ // The starting line |
+ this.line = line; |
+ // Continuing lines, if any |
+ this.rest = visualLineContinued(line); |
+ // Number of logical lines in this visual line |
+ this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; |
+ this.node = this.text = null; |
+ this.hidden = lineIsHidden(doc, line); |
+ } |
+ |
+ // Create a range of LineView objects for the given lines. |
+ function buildViewArray(cm, from, to) { |
+ var array = [], nextPos; |
+ for (var pos = from; pos < to; pos = nextPos) { |
+ var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); |
+ nextPos = pos + view.size; |
+ array.push(view); |
+ } |
+ return array; |
+ } |
+ |
+ // Updates the display.view data structure for a given change to the |
+ // document. From and to are in pre-change coordinates. Lendiff is |
+ // the amount of lines added or subtracted by the change. This is |
+ // used for changes that span multiple lines, or change the way |
+ // lines are divided into visual lines. regLineChange (below) |
+ // registers single-line changes. |
+ function regChange(cm, from, to, lendiff) { |
+ if (from == null) from = cm.doc.first; |
+ if (to == null) to = cm.doc.first + cm.doc.size; |
+ if (!lendiff) lendiff = 0; |
+ |
+ var display = cm.display; |
+ if (lendiff && to < display.viewTo && |
+ (display.updateLineNumbers == null || display.updateLineNumbers > from)) |
+ display.updateLineNumbers = from; |
+ |
+ cm.curOp.viewChanged = true; |
+ |
+ if (from >= display.viewTo) { // Change after |
+ if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) |
+ resetView(cm); |
+ } else if (to <= display.viewFrom) { // Change before |
+ if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { |
+ resetView(cm); |
+ } else { |
+ display.viewFrom += lendiff; |
+ display.viewTo += lendiff; |
+ } |
+ } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap |
+ resetView(cm); |
+ } else if (from <= display.viewFrom) { // Top overlap |
+ var cut = viewCuttingPoint(cm, to, to + lendiff, 1); |
+ if (cut) { |
+ display.view = display.view.slice(cut.index); |
+ display.viewFrom = cut.lineN; |
+ display.viewTo += lendiff; |
+ } else { |
+ resetView(cm); |
+ } |
+ } else if (to >= display.viewTo) { // Bottom overlap |
+ var cut = viewCuttingPoint(cm, from, from, -1); |
+ if (cut) { |
+ display.view = display.view.slice(0, cut.index); |
+ display.viewTo = cut.lineN; |
+ } else { |
+ resetView(cm); |
+ } |
+ } else { // Gap in the middle |
+ var cutTop = viewCuttingPoint(cm, from, from, -1); |
+ var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); |
+ if (cutTop && cutBot) { |
+ display.view = display.view.slice(0, cutTop.index) |
+ .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) |
+ .concat(display.view.slice(cutBot.index)); |
+ display.viewTo += lendiff; |
+ } else { |
+ resetView(cm); |
+ } |
+ } |
+ |
+ var ext = display.externalMeasured; |
+ if (ext) { |
+ if (to < ext.lineN) |
+ ext.lineN += lendiff; |
+ else if (from < ext.lineN + ext.size) |
+ display.externalMeasured = null; |
+ } |
+ } |
+ |
+ // Register a change to a single line. Type must be one of "text", |
+ // "gutter", "class", "widget" |
+ function regLineChange(cm, line, type) { |
+ cm.curOp.viewChanged = true; |
+ var display = cm.display, ext = cm.display.externalMeasured; |
+ if (ext && line >= ext.lineN && line < ext.lineN + ext.size) |
+ display.externalMeasured = null; |
+ |
+ if (line < display.viewFrom || line >= display.viewTo) return; |
+ var lineView = display.view[findViewIndex(cm, line)]; |
+ if (lineView.node == null) return; |
+ var arr = lineView.changes || (lineView.changes = []); |
+ if (indexOf(arr, type) == -1) arr.push(type); |
+ } |
+ |
+ // Clear the view. |
+ function resetView(cm) { |
+ cm.display.viewFrom = cm.display.viewTo = cm.doc.first; |
+ cm.display.view = []; |
+ cm.display.viewOffset = 0; |
+ } |
+ |
+ // Find the view element corresponding to a given line. Return null |
+ // when the line isn't visible. |
+ function findViewIndex(cm, n) { |
+ if (n >= cm.display.viewTo) return null; |
+ n -= cm.display.viewFrom; |
+ if (n < 0) return null; |
+ var view = cm.display.view; |
+ for (var i = 0; i < view.length; i++) { |
+ n -= view[i].size; |
+ if (n < 0) return i; |
+ } |
+ } |
+ |
+ function viewCuttingPoint(cm, oldN, newN, dir) { |
+ var index = findViewIndex(cm, oldN), diff, view = cm.display.view; |
+ if (!sawCollapsedSpans) return {index: index, lineN: newN}; |
+ for (var i = 0, n = cm.display.viewFrom; i < index; i++) |
+ n += view[i].size; |
+ if (n != oldN) { |
+ if (dir > 0) { |
+ if (index == view.length - 1) return null; |
+ diff = (n + view[index].size) - oldN; |
+ index++; |
+ } else { |
+ diff = n - oldN; |
+ } |
+ oldN += diff; newN += diff; |
+ } |
+ while (visualLineNo(cm.doc, newN) != newN) { |
+ if (index == (dir < 0 ? 0 : view.length - 1)) return null; |
+ newN += dir * view[index - (dir < 0 ? 1 : 0)].size; |
+ index += dir; |
+ } |
+ return {index: index, lineN: newN}; |
+ } |
+ |
+ // Force the view to cover a given range, adding empty view element |
+ // or clipping off existing ones as needed. |
+ function adjustView(cm, from, to) { |
+ var display = cm.display, view = display.view; |
+ if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { |
+ display.view = buildViewArray(cm, from, to); |
+ display.viewFrom = from; |
+ } else { |
+ if (display.viewFrom > from) |
+ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); |
+ else if (display.viewFrom < from) |
+ display.view = display.view.slice(findViewIndex(cm, from)); |
+ display.viewFrom = from; |
+ if (display.viewTo < to) |
+ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); |
+ else if (display.viewTo > to) |
+ display.view = display.view.slice(0, findViewIndex(cm, to)); |
+ } |
+ display.viewTo = to; |
} |
- function regChange(cm, from, to, lendiff) { |
- if (from == null) from = cm.doc.first; |
- if (to == null) to = cm.doc.first + cm.doc.size; |
- cm.curOp.changes.push({from: from, to: to, diff: lendiff}); |
+ // Count the number of lines in the view whose DOM representation is |
+ // out of date (or nonexistent). |
+ function countDirtyView(cm) { |
+ var view = cm.display.view, dirty = 0; |
+ for (var i = 0; i < view.length; i++) { |
+ var lineView = view[i]; |
+ if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty; |
+ } |
+ return dirty; |
} |
// INPUT HANDLING |
+ // Poll for input changes, using the normal rate of polling. This |
+ // runs as long as the editor is focused. |
function slowPoll(cm) { |
if (cm.display.pollingFast) return; |
cm.display.poll.set(cm.options.pollInterval, function() { |
@@ -1470,6 +2178,9 @@ window.CodeMirror = (function() { |
}); |
} |
+ // When an event has just come in that is likely to add or change |
+ // something in the input textarea, we poll faster, to ensure that |
+ // the change appears on the screen quickly. |
function fastPoll(cm) { |
var missed = false; |
cm.display.pollingFast = true; |
@@ -1481,53 +2192,72 @@ window.CodeMirror = (function() { |
cm.display.poll.set(20, p); |
} |
- // prevInput is a hack to work with IME. If we reset the textarea |
- // on every change, that breaks IME. So we look for changes |
- // compared to the previous content instead. (Modern browsers have |
- // events that indicate IME taking place, but these are not widely |
- // supported or compatible enough yet to rely on.) |
+ // Read input from the textarea, and update the document to match. |
+ // When something is selected, it is present in the textarea, and |
+ // selected (unless it is huge, in which case a placeholder is |
+ // used). When nothing is selected, the cursor sits after previously |
+ // seen text (can be empty), which is stored in prevInput (we must |
+ // not reset the textarea when typing, because that breaks IME). |
function readInput(cm) { |
- var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc, sel = doc.sel; |
+ var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc; |
+ // Since this is called a *lot*, try to bail out as cheaply as |
+ // possible when it is clear that nothing happened. hasSelection |
+ // will be the case when there is a lot of text in the textarea, |
+ // in which case reading its value would be expensive. |
if (!cm.state.focused || hasSelection(input) || isReadOnly(cm) || cm.options.disableInput) return false; |
- if (cm.state.pasteIncoming && cm.state.fakedLastChar) { |
- input.value = input.value.substring(0, input.value.length - 1); |
- cm.state.fakedLastChar = false; |
- } |
var text = input.value; |
- if (text == prevInput && posEq(sel.from, sel.to)) return false; |
- if (ie && !ie_lt9 && cm.display.inputHasSelection === text) { |
- resetInput(cm, true); |
+ // If nothing changed, bail. |
+ if (text == prevInput && !cm.somethingSelected()) return false; |
+ // Work around nonsensical selection resetting in IE9/10 |
+ if (ie && !ie_upto8 && cm.display.inputHasSelection === text) { |
+ resetInput(cm); |
return false; |
} |
var withOp = !cm.curOp; |
if (withOp) startOperation(cm); |
- sel.shift = false; |
+ cm.display.shift = false; |
+ |
+ // Find the part of the input that is actually new |
var same = 0, l = Math.min(prevInput.length, text.length); |
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same; |
- var from = sel.from, to = sel.to; |
- var inserted = text.slice(same); |
- if (same < prevInput.length) |
- from = Pos(from.line, from.ch - (prevInput.length - same)); |
- else if (cm.state.overwrite && posEq(from, to) && !cm.state.pasteIncoming) |
- to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + inserted.length)); |
- |
- var updateInput = cm.curOp.updateInput; |
- var changeEvent = {from: from, to: to, text: splitLines(inserted), |
- origin: cm.state.pasteIncoming ? "paste" : cm.state.cutIncoming ? "cut" : "+input"}; |
- makeChange(cm.doc, changeEvent, "end"); |
- cm.curOp.updateInput = updateInput; |
- signalLater(cm, "inputRead", cm, changeEvent); |
- if (inserted && !cm.state.pasteIncoming && cm.options.electricChars && |
- cm.options.smartIndent && sel.head.ch < 100) { |
- var electric = cm.getModeAt(sel.head).electricChars; |
- if (electric) for (var i = 0; i < electric.length; i++) |
- if (inserted.indexOf(electric.charAt(i)) > -1) { |
- indentLine(cm, sel.head.line, "smart"); |
- break; |
- } |
+ var inserted = text.slice(same), textLines = splitLines(inserted); |
+ |
+ // When pasing N lines into N selections, insert one line per selection |
+ var multiPaste = cm.state.pasteIncoming && textLines.length > 1 && doc.sel.ranges.length == textLines.length; |
+ |
+ // Normal behavior is to insert the new text into every selection |
+ for (var i = doc.sel.ranges.length - 1; i >= 0; i--) { |
+ var range = doc.sel.ranges[i]; |
+ var from = range.from(), to = range.to(); |
+ // Handle deletion |
+ if (same < prevInput.length) |
+ from = Pos(from.line, from.ch - (prevInput.length - same)); |
+ // Handle overwrite |
+ else if (cm.state.overwrite && range.empty() && !cm.state.pasteIncoming) |
+ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); |
+ var updateInput = cm.curOp.updateInput; |
+ var changeEvent = {from: from, to: to, text: multiPaste ? [textLines[i]] : textLines, |
+ origin: cm.state.pasteIncoming ? "paste" : cm.state.cutIncoming ? "cut" : "+input"}; |
+ makeChange(cm.doc, changeEvent); |
+ signalLater(cm, "inputRead", cm, changeEvent); |
+ // When an 'electric' character is inserted, immediately trigger a reindent |
+ if (inserted && !cm.state.pasteIncoming && cm.options.electricChars && |
+ cm.options.smartIndent && range.head.ch < 100 && |
+ (!i || doc.sel.ranges[i - 1].head.line != range.head.line)) { |
+ var electric = cm.getModeAt(range.head).electricChars; |
+ if (electric) for (var j = 0; j < electric.length; j++) |
+ if (inserted.indexOf(electric.charAt(j)) > -1) { |
+ indentLine(cm, range.head.line, "smart"); |
+ break; |
+ } |
+ } |
} |
+ ensureCursorVisible(cm); |
+ cm.curOp.updateInput = updateInput; |
+ cm.curOp.typing = true; |
+ // Don't leave long text in the textarea, since it makes further polling slow |
if (text.length > 1000 || text.indexOf("\n") > -1) input.value = cm.display.prevInput = ""; |
else cm.display.prevInput = text; |
if (withOp) endOperation(cm); |
@@ -1535,56 +2265,68 @@ window.CodeMirror = (function() { |
return true; |
} |
- function resetInput(cm, user) { |
+ // Reset the input to correspond to the selection (or to be empty, |
+ // when not typing and nothing is selected) |
+ function resetInput(cm, typing) { |
var minimal, selected, doc = cm.doc; |
- if (!posEq(doc.sel.from, doc.sel.to)) { |
+ if (cm.somethingSelected()) { |
cm.display.prevInput = ""; |
+ var range = doc.sel.primary(); |
minimal = hasCopyEvent && |
- (doc.sel.to.line - doc.sel.from.line > 100 || (selected = cm.getSelection()).length > 1000); |
+ (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000); |
var content = minimal ? "-" : selected || cm.getSelection(); |
cm.display.input.value = content; |
if (cm.state.focused) selectInput(cm.display.input); |
- if (ie && !ie_lt9) cm.display.inputHasSelection = content; |
- } else if (user) { |
+ if (ie && !ie_upto8) cm.display.inputHasSelection = content; |
+ } else if (!typing) { |
cm.display.prevInput = cm.display.input.value = ""; |
- if (ie && !ie_lt9) cm.display.inputHasSelection = null; |
+ if (ie && !ie_upto8) cm.display.inputHasSelection = null; |
} |
cm.display.inaccurateSelection = minimal; |
} |
function focusInput(cm) { |
- if (cm.options.readOnly != "nocursor" && (!mobile || document.activeElement != cm.display.input)) |
+ if (cm.options.readOnly != "nocursor" && (!mobile || activeElt() != cm.display.input)) |
cm.display.input.focus(); |
} |
+ function ensureFocus(cm) { |
+ if (!cm.state.focused) { focusInput(cm); onFocus(cm); } |
+ } |
+ |
function isReadOnly(cm) { |
return cm.options.readOnly || cm.doc.cantEdit; |
} |
// EVENT HANDLERS |
+ // Attach the necessary event handlers when initializing the editor |
function registerEventHandlers(cm) { |
var d = cm.display; |
on(d.scroller, "mousedown", operation(cm, onMouseDown)); |
- if (old_ie) |
+ // Older IE's will not fire a second mousedown for a double click |
+ if (ie_upto10) |
on(d.scroller, "dblclick", operation(cm, function(e) { |
if (signalDOMEvent(cm, e)) return; |
var pos = posFromMouse(cm, e); |
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return; |
e_preventDefault(e); |
- var word = findWordAt(getLine(cm.doc, pos.line).text, pos); |
- extendSelection(cm.doc, word.from, word.to); |
+ var word = findWordAt(cm.doc, pos); |
+ extendSelection(cm.doc, word.anchor, word.head); |
})); |
else |
on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); }); |
+ // Prevent normal selection in the editor (we handle our own) |
on(d.lineSpace, "selectstart", function(e) { |
if (!eventInWidget(d, e)) e_preventDefault(e); |
}); |
- // Gecko browsers fire contextmenu *after* opening the menu, at |
+ // Some browsers fire contextmenu *after* opening the menu, at |
// which point we can't mess with it anymore. Context menu is |
- // handled in onMouseDown for Gecko. |
- if (!captureMiddleClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);}); |
+ // handled in onMouseDown for these browsers. |
+ if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);}); |
+ // Sync scrolling between fake scrollbars and real scrollable |
+ // area, ensure viewport is updated when scrolling. |
on(d.scroller, "scroll", function() { |
if (d.scroller.clientHeight) { |
setScrollTop(cm, d.scroller.scrollTop); |
@@ -1599,39 +2341,40 @@ window.CodeMirror = (function() { |
if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft); |
}); |
+ // Listen to wheel events in order to try and update the viewport on time. |
on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);}); |
on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);}); |
+ // Prevent clicks in the scrollbars from killing focus |
function reFocus() { if (cm.state.focused) setTimeout(bind(focusInput, cm), 0); } |
on(d.scrollbarH, "mousedown", reFocus); |
on(d.scrollbarV, "mousedown", reFocus); |
// Prevent wrapper from ever scrolling |
on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); |
+ // When the window resizes, we need to refresh active editors. |
var resizeTimer; |
function onResize() { |
if (resizeTimer == null) resizeTimer = setTimeout(function() { |
resizeTimer = null; |
// Might be a text scaling operation, clear size caches. |
- d.cachedCharWidth = d.cachedTextHeight = knownScrollbarWidth = null; |
- clearCaches(cm); |
- runInOp(cm, bind(regChange, cm)); |
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = knownScrollbarWidth = null; |
+ cm.setSize(); |
}, 100); |
} |
on(window, "resize", onResize); |
- // Above handler holds on to the editor and its data structures. |
- // Here we poll to unregister it when the editor is no longer in |
- // the document, so that it can be garbage-collected. |
+ // The above handler holds on to the editor and its data |
+ // structures. Here we poll to unregister it when the editor is no |
+ // longer in the document, so that it can be garbage-collected. |
function unregister() { |
- for (var p = d.wrapper.parentNode; p && p != document.body; p = p.parentNode) {} |
- if (p) setTimeout(unregister, 5000); |
+ if (contains(document.body, d.wrapper)) setTimeout(unregister, 5000); |
else off(window, "resize", onResize); |
} |
setTimeout(unregister, 5000); |
on(d.input, "keyup", operation(cm, onKeyUp)); |
on(d.input, "input", function() { |
- if (ie && !ie_lt9 && cm.display.inputHasSelection) cm.display.inputHasSelection = null; |
+ if (ie && !ie_upto8 && cm.display.inputHasSelection) cm.display.inputHasSelection = null; |
fastPoll(cm); |
}); |
on(d.input, "keydown", operation(cm, onKeyDown)); |
@@ -1640,8 +2383,7 @@ window.CodeMirror = (function() { |
on(d.input, "blur", bind(onBlur, cm)); |
function drag_(e) { |
- if (signalDOMEvent(cm, e) || cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))) return; |
- e_stop(e); |
+ if (!signalDOMEvent(cm, e)) e_stop(e); |
} |
if (cm.options.dragDrop) { |
on(d.scroller, "dragstart", function(e){onDragStart(cm, e);}); |
@@ -1651,20 +2393,11 @@ window.CodeMirror = (function() { |
} |
on(d.scroller, "paste", function(e) { |
if (eventInWidget(d, e)) return; |
+ cm.state.pasteIncoming = true; |
focusInput(cm); |
fastPoll(cm); |
}); |
on(d.input, "paste", function() { |
- // Workaround for webkit bug https://bugs.webkit.org/show_bug.cgi?id=90206 |
- // Add a char to the end of textarea before paste occur so that |
- // selection doesn't span to the end of textarea. |
- if (webkit && !cm.state.fakedLastChar && !(new Date - cm.state.lastMiddleDown < 200)) { |
- var start = d.input.selectionStart, end = d.input.selectionEnd; |
- d.input.value += "$"; |
- d.input.selectionStart = start; |
- d.input.selectionEnd = end; |
- cm.state.fakedLastChar = true; |
- } |
cm.state.pasteIncoming = true; |
fastPoll(cm); |
}); |
@@ -1683,39 +2416,58 @@ window.CodeMirror = (function() { |
// Needed to handle Tab key in KHTML |
if (khtml) on(d.sizer, "mouseup", function() { |
- if (document.activeElement == d.input) d.input.blur(); |
+ if (activeElt() == d.input) d.input.blur(); |
focusInput(cm); |
}); |
} |
+ // MOUSE EVENTS |
+ |
+ // Return true when the given mouse event happened in a widget |
function eventInWidget(display, e) { |
for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { |
if (!n || n.ignoreEvents || n.parentNode == display.sizer && n != display.mover) return true; |
} |
} |
- function posFromMouse(cm, e, liberal) { |
+ // Given a mouse event, find the corresponding position. If liberal |
+ // is false, it checks whether a gutter or scrollbar was clicked, |
+ // and returns null if it was. forRect is used by rectangular |
+ // selections, and tries to estimate a character position even for |
+ // coordinates beyond the right of the text. |
+ function posFromMouse(cm, e, liberal, forRect) { |
var display = cm.display; |
if (!liberal) { |
var target = e_target(e); |
- if (target == display.scrollbarH || target == display.scrollbarH.firstChild || |
- target == display.scrollbarV || target == display.scrollbarV.firstChild || |
+ if (target == display.scrollbarH || target == display.scrollbarV || |
target == display.scrollbarFiller || target == display.gutterFiller) return null; |
} |
- var x, y, space = getRect(display.lineSpace); |
+ var x, y, space = display.lineSpace.getBoundingClientRect(); |
// Fails unpredictably on IE[67] when mouse is dragged around quickly. |
- try { x = e.clientX; y = e.clientY; } catch (e) { return null; } |
- return coordsChar(cm, x - space.left, y - space.top); |
+ try { x = e.clientX - space.left; y = e.clientY - space.top; } |
+ catch (e) { return null; } |
+ var coords = coordsChar(cm, x, y), line; |
+ if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { |
+ var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; |
+ coords = Pos(coords.line, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff); |
+ } |
+ return coords; |
} |
- var lastClick, lastDoubleClick; |
+ // A mouse down can be a single click, double click, triple click, |
+ // start of selection drag, start of text drag, new cursor |
+ // (ctrl-click), rectangle drag (alt-drag), or xwin |
+ // middle-click-paste. Or it might be a click on something we should |
+ // not interfere with, such as a scrollbar or widget. |
function onMouseDown(e) { |
if (signalDOMEvent(this, e)) return; |
- var cm = this, display = cm.display, doc = cm.doc, sel = doc.sel; |
- sel.shift = e.shiftKey; |
+ var cm = this, display = cm.display; |
+ display.shift = e.shiftKey; |
if (eventInWidget(display, e)) { |
if (!webkit) { |
+ // Briefly turn off draggability, to allow widgets to do |
+ // normal dragging things. |
display.scroller.draggable = false; |
setTimeout(function(){display.scroller.draggable = true;}, 100); |
} |
@@ -1723,92 +2475,168 @@ window.CodeMirror = (function() { |
} |
if (clickInGutter(cm, e)) return; |
var start = posFromMouse(cm, e); |
+ window.focus(); |
switch (e_button(e)) { |
- case 3: |
- if (captureMiddleClick) onContextMenu.call(cm, cm, e); |
- return; |
+ case 1: |
+ if (start) |
+ leftButtonDown(cm, e, start); |
+ else if (e_target(e) == display.scroller) |
+ e_preventDefault(e); |
+ break; |
case 2: |
if (webkit) cm.state.lastMiddleDown = +new Date; |
if (start) extendSelection(cm.doc, start); |
setTimeout(bind(focusInput, cm), 20); |
e_preventDefault(e); |
- return; |
+ break; |
+ case 3: |
+ if (captureRightClick) onContextMenu(cm, e); |
+ break; |
} |
- // For button 1, if it was clicked inside the editor |
- // (posFromMouse returning non-null), we have to adjust the |
- // selection. |
- if (!start) {if (e_target(e) == display.scroller) e_preventDefault(e); return;} |
+ } |
- if (!cm.state.focused) onFocus(cm); |
+ var lastClick, lastDoubleClick; |
+ function leftButtonDown(cm, e, start) { |
+ setTimeout(bind(ensureFocus, cm), 0); |
- var now = +new Date, type = "single"; |
- if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) { |
+ var now = +new Date, type; |
+ if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { |
type = "triple"; |
- e_preventDefault(e); |
- setTimeout(bind(focusInput, cm), 20); |
- selectLine(cm, start.line); |
- } else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) { |
+ } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { |
type = "double"; |
lastDoubleClick = {time: now, pos: start}; |
- e_preventDefault(e); |
- var word = findWordAt(getLine(doc, start.line).text, start); |
- extendSelection(cm.doc, word.from, word.to); |
- } else { lastClick = {time: now, pos: start}; } |
- |
- var last = start; |
- if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) && !posEq(sel.from, sel.to) && |
- !posLess(start, sel.from) && !posLess(sel.to, start) && type == "single") { |
- var dragEnd = operation(cm, function(e2) { |
- if (webkit) display.scroller.draggable = false; |
- cm.state.draggingText = false; |
- off(document, "mouseup", dragEnd); |
- off(display.scroller, "drop", dragEnd); |
- if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { |
- e_preventDefault(e2); |
- extendSelection(cm.doc, start); |
- focusInput(cm); |
- // Work around unexplainable focus problem in IE9 (#2127) |
- if (old_ie && !ie_lt9) |
- setTimeout(function() {document.body.focus(); focusInput(cm);}, 20); |
- } |
- }); |
- // Let the drag handler handle this. |
- if (webkit) display.scroller.draggable = true; |
- cm.state.draggingText = dragEnd; |
- // IE's approach to draggable |
- if (display.scroller.dragDrop) display.scroller.dragDrop(); |
- on(document, "mouseup", dragEnd); |
- on(display.scroller, "drop", dragEnd); |
- return; |
+ } else { |
+ type = "single"; |
+ lastClick = {time: now, pos: start}; |
} |
- e_preventDefault(e); |
- if (type == "single") extendSelection(cm.doc, clipPos(doc, start)); |
- |
- var startstart = sel.from, startend = sel.to, lastPos = start; |
- function doSelect(cur) { |
- if (posEq(lastPos, cur)) return; |
- lastPos = cur; |
+ var sel = cm.doc.sel, addNew = mac ? e.metaKey : e.ctrlKey; |
+ if (cm.options.dragDrop && dragAndDrop && !addNew && !isReadOnly(cm) && |
+ type == "single" && sel.contains(start) > -1 && sel.somethingSelected()) |
+ leftButtonStartDrag(cm, e, start); |
+ else |
+ leftButtonSelect(cm, e, start, type, addNew); |
+ } |
- if (type == "single") { |
- extendSelection(cm.doc, clipPos(doc, start), cur); |
- return; |
+ // Start a text drag. When it ends, see if any dragging actually |
+ // happen, and treat as a click if it didn't. |
+ function leftButtonStartDrag(cm, e, start) { |
+ var display = cm.display; |
+ var dragEnd = operation(cm, function(e2) { |
+ if (webkit) display.scroller.draggable = false; |
+ cm.state.draggingText = false; |
+ off(document, "mouseup", dragEnd); |
+ off(display.scroller, "drop", dragEnd); |
+ if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { |
+ e_preventDefault(e2); |
+ extendSelection(cm.doc, start); |
+ focusInput(cm); |
+ // Work around unexplainable focus problem in IE9 (#2127) |
+ if (ie_upto10 && !ie_upto8) |
+ setTimeout(function() {document.body.focus(); focusInput(cm);}, 20); |
} |
+ }); |
+ // Let the drag handler handle this. |
+ if (webkit) display.scroller.draggable = true; |
+ cm.state.draggingText = dragEnd; |
+ // IE's approach to draggable |
+ if (display.scroller.dragDrop) display.scroller.dragDrop(); |
+ on(document, "mouseup", dragEnd); |
+ on(display.scroller, "drop", dragEnd); |
+ } |
+ |
+ // Normal selection, as opposed to text dragging. |
+ function leftButtonSelect(cm, e, start, type, addNew) { |
+ var display = cm.display, doc = cm.doc; |
+ e_preventDefault(e); |
+ |
+ var ourRange, ourIndex, startSel = doc.sel; |
+ if (addNew) { |
+ ourIndex = doc.sel.contains(start); |
+ if (ourIndex > -1) |
+ ourRange = doc.sel.ranges[ourIndex]; |
+ else |
+ ourRange = new Range(start, start); |
+ } else { |
+ ourRange = doc.sel.primary(); |
+ } |
+ |
+ if (e.altKey) { |
+ type = "rect"; |
+ if (!addNew) ourRange = new Range(start, start); |
+ start = posFromMouse(cm, e, true, true); |
+ ourIndex = -1; |
+ } else if (type == "double") { |
+ var word = findWordAt(doc, start); |
+ if (cm.display.shift || doc.extend) |
+ ourRange = extendRange(doc, ourRange, word.anchor, word.head); |
+ else |
+ ourRange = word; |
+ } else if (type == "triple") { |
+ var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))); |
+ if (cm.display.shift || doc.extend) |
+ ourRange = extendRange(doc, ourRange, line.anchor, line.head); |
+ else |
+ ourRange = line; |
+ } else { |
+ ourRange = extendRange(doc, ourRange, start); |
+ } |
- startstart = clipPos(doc, startstart); |
- startend = clipPos(doc, startend); |
- if (type == "double") { |
- var word = findWordAt(getLine(doc, cur.line).text, cur); |
- if (posLess(cur, startstart)) extendSelection(cm.doc, word.from, startend); |
- else extendSelection(cm.doc, startstart, word.to); |
- } else if (type == "triple") { |
- if (posLess(cur, startstart)) extendSelection(cm.doc, startend, clipPos(doc, Pos(cur.line, 0))); |
- else extendSelection(cm.doc, startstart, clipPos(doc, Pos(cur.line + 1, 0))); |
+ if (!addNew) { |
+ ourIndex = 0; |
+ setSelection(doc, new Selection([ourRange], 0), sel_mouse); |
+ } else if (ourIndex > -1) { |
+ replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); |
+ } else { |
+ ourIndex = doc.sel.ranges.length; |
+ setSelection(doc, normalizeSelection(doc.sel.ranges.concat([ourRange]), ourIndex), |
+ {scroll: false, origin: "*mouse"}); |
+ } |
+ |
+ var lastPos = start; |
+ function extendTo(pos) { |
+ if (cmp(lastPos, pos) == 0) return; |
+ lastPos = pos; |
+ |
+ if (type == "rect") { |
+ var ranges = [], tabSize = cm.options.tabSize; |
+ var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); |
+ var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); |
+ var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); |
+ for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); |
+ line <= end; line++) { |
+ var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); |
+ if (left == right) |
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); |
+ else if (text.length > leftPos) |
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); |
+ } |
+ if (!ranges.length) ranges.push(new Range(start, start)); |
+ setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), sel_mouse); |
+ } else { |
+ var oldRange = ourRange; |
+ var anchor = oldRange.anchor, head = pos; |
+ if (type != "single") { |
+ if (type == "double") |
+ var range = findWordAt(doc, pos); |
+ else |
+ var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))); |
+ if (cmp(range.anchor, anchor) > 0) { |
+ head = range.head; |
+ anchor = minPos(oldRange.from(), range.anchor); |
+ } else { |
+ head = range.anchor; |
+ anchor = maxPos(oldRange.to(), range.head); |
+ } |
+ } |
+ var ranges = startSel.ranges.slice(0); |
+ ranges[ourIndex] = new Range(clipPos(doc, anchor), head); |
+ setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse); |
} |
} |
- var editorSize = getRect(display.wrapper); |
+ var editorSize = display.wrapper.getBoundingClientRect(); |
// Used to ensure timeout re-tries don't fire when another extend |
// happened in the meantime (clearTimeout isn't reliable -- at |
// least on Chrome, the timeouts still happen even when cleared, |
@@ -1817,12 +2645,11 @@ window.CodeMirror = (function() { |
function extend(e) { |
var curCount = ++counter; |
- var cur = posFromMouse(cm, e, true); |
+ var cur = posFromMouse(cm, e, true, type == "rect"); |
if (!cur) return; |
- if (!posEq(cur, last)) { |
- if (!cm.state.focused) onFocus(cm); |
- last = cur; |
- doSelect(cur); |
+ if (cmp(cur, lastPos) != 0) { |
+ ensureFocus(cm); |
+ extendTo(cur); |
var visible = visibleLines(display, doc); |
if (cur.line >= visible.to || cur.line < visible.from) |
setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150); |
@@ -1842,10 +2669,11 @@ window.CodeMirror = (function() { |
focusInput(cm); |
off(document, "mousemove", move); |
off(document, "mouseup", up); |
+ doc.history.lastSelOrigin = null; |
} |
var move = operation(cm, function(e) { |
- if (!old_ie && !e_button(e)) done(e); |
+ if ((ie && !ie_upto9) ? !e.buttons : !e_button(e)) done(e); |
else extend(e); |
}); |
var up = operation(cm, done); |
@@ -1853,21 +2681,23 @@ window.CodeMirror = (function() { |
on(document, "mouseup", up); |
} |
+ // Determines whether an event happened in the gutter, and fires the |
+ // handlers for the corresponding event. |
function gutterEvent(cm, e, type, prevent, signalfn) { |
try { var mX = e.clientX, mY = e.clientY; } |
catch(e) { return false; } |
- if (mX >= Math.floor(getRect(cm.display.gutters).right)) return false; |
+ if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false; |
if (prevent) e_preventDefault(e); |
var display = cm.display; |
- var lineBox = getRect(display.lineDiv); |
+ var lineBox = display.lineDiv.getBoundingClientRect(); |
if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e); |
mY -= lineBox.top - display.viewOffset; |
for (var i = 0; i < cm.options.gutters.length; ++i) { |
var g = display.gutters.childNodes[i]; |
- if (g && getRect(g).right >= mX) { |
+ if (g && g.getBoundingClientRect().right >= mX) { |
var line = lineAtHeight(cm.doc, mY); |
var gutter = cm.options.gutters[i]; |
signalfn(cm, type, cm, line, gutter, e); |
@@ -1876,11 +2706,6 @@ window.CodeMirror = (function() { |
} |
} |
- function contextMenuInGutter(cm, e) { |
- if (!hasHandler(cm, "gutterContextMenu")) return false; |
- return gutterEvent(cm, e, "gutterContextMenu", false, signal); |
- } |
- |
function clickInGutter(cm, e) { |
return gutterEvent(cm, e, "gutterClick", true, signalLater); |
} |
@@ -1891,12 +2716,14 @@ window.CodeMirror = (function() { |
function onDrop(e) { |
var cm = this; |
- if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e) || (cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e)))) |
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) |
return; |
e_preventDefault(e); |
- if (ie) lastDrop = +new Date; |
+ if (ie_upto10) lastDrop = +new Date; |
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; |
if (!pos || isReadOnly(cm)) return; |
+ // Might be a file drop, in which case we simply extract the text |
+ // and insert it. |
if (files && files.length && window.FileReader && window.File) { |
var n = files.length, text = Array(n), read = 0; |
var loadFile = function(file, i) { |
@@ -1905,15 +2732,17 @@ window.CodeMirror = (function() { |
text[i] = reader.result; |
if (++read == n) { |
pos = clipPos(cm.doc, pos); |
- makeChange(cm.doc, {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"}, "around"); |
+ var change = {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"}; |
+ makeChange(cm.doc, change); |
+ setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); |
} |
}; |
reader.readAsText(file); |
}; |
for (var i = 0; i < n; ++i) loadFile(files[i], i); |
- } else { |
+ } else { // Normal drop |
// Don't do a replace if the drop happened inside of the selected text. |
- if (cm.state.draggingText && !(posLess(pos, cm.doc.sel.from) || posLess(cm.doc.sel.to, pos))) { |
+ if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { |
cm.state.draggingText(e); |
// Ensure the editor is re-focused |
setTimeout(bind(focusInput, cm), 20); |
@@ -1922,10 +2751,11 @@ window.CodeMirror = (function() { |
try { |
var text = e.dataTransfer.getData("Text"); |
if (text) { |
- var curFrom = cm.doc.sel.from, curTo = cm.doc.sel.to; |
- setSelection(cm.doc, pos, pos); |
- if (cm.state.draggingText) replaceRange(cm.doc, "", curFrom, curTo, "paste"); |
- cm.replaceSelection(text, null, "paste"); |
+ var selected = cm.state.draggingText && cm.listSelections(); |
+ setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); |
+ if (selected) for (var i = 0; i < selected.length; ++i) |
+ replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag"); |
+ cm.replaceSelection(text, "around", "paste"); |
focusInput(cm); |
} |
} |
@@ -1934,37 +2764,42 @@ window.CodeMirror = (function() { |
} |
function onDragStart(cm, e) { |
- if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } |
+ if (ie_upto10 && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } |
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return; |
- var txt = cm.getSelection(); |
- e.dataTransfer.setData("Text", txt); |
+ e.dataTransfer.setData("Text", cm.getSelection()); |
// Use dummy image instead of default browsers image. |
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. |
if (e.dataTransfer.setDragImage && !safari) { |
var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); |
img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; |
- if (opera) { |
+ if (presto) { |
img.width = img.height = 1; |
cm.display.wrapper.appendChild(img); |
// Force a relayout, or Opera won't use our image for some obscure reason |
img._top = img.offsetTop; |
} |
e.dataTransfer.setDragImage(img, 0, 0); |
- if (opera) img.parentNode.removeChild(img); |
+ if (presto) img.parentNode.removeChild(img); |
} |
} |
+ // SCROLL EVENTS |
+ |
+ // Sync the scrollable area and scrollbars, ensure the viewport |
+ // covers the visible area. |
function setScrollTop(cm, val) { |
if (Math.abs(cm.doc.scrollTop - val) < 2) return; |
cm.doc.scrollTop = val; |
- if (!gecko) updateDisplay(cm, [], val); |
+ if (!gecko) updateDisplay(cm, {top: val}); |
if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; |
if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val; |
- if (gecko) updateDisplay(cm, []); |
+ if (gecko) updateDisplay(cm); |
startWorker(cm, 100); |
} |
+ // Sync scroller and scrollbar, ensure the gutter elements are |
+ // aligned. |
function setScrollLeft(cm, val, isScroller) { |
if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; |
val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); |
@@ -1990,7 +2825,7 @@ window.CodeMirror = (function() { |
// know one. These don't have to be accurate -- the result of them |
// being wrong would just be a slight flicker on the first wheel |
// scroll (if it is large enough). |
- if (old_ie) wheelPixelsPerUnit = -.53; |
+ if (ie) wheelPixelsPerUnit = -.53; |
else if (gecko) wheelPixelsPerUnit = 15; |
else if (chrome) wheelPixelsPerUnit = -.7; |
else if (safari) wheelPixelsPerUnit = -1/3; |
@@ -2011,10 +2846,12 @@ window.CodeMirror = (function() { |
// This hack (see related code in patchDisplay) makes sure the |
// element is kept around. |
if (dy && mac && webkit) { |
- for (var cur = e.target; cur != scroll; cur = cur.parentNode) { |
- if (cur.lineObj) { |
- cm.display.currentWheelTarget = cur; |
- break; |
+ outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { |
+ for (var i = 0; i < view.length; i++) { |
+ if (view[i].node == cur) { |
+ cm.display.currentWheelTarget = cur; |
+ break outer; |
+ } |
} |
} |
} |
@@ -2025,7 +2862,7 @@ window.CodeMirror = (function() { |
// estimated pixels/delta value, we just handle horizontal |
// scrolling entirely here. It'll be slightly off from native, but |
// better than glitching out. |
- if (dx && !gecko && !opera && wheelPixelsPerUnit != null) { |
+ if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { |
if (dy) |
setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); |
setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); |
@@ -2034,12 +2871,14 @@ window.CodeMirror = (function() { |
return; |
} |
+ // 'Project' the visible viewport to cover the area that is being |
+ // scrolled into view (if we know enough to estimate it). |
if (dy && wheelPixelsPerUnit != null) { |
var pixels = dy * wheelPixelsPerUnit; |
var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; |
if (pixels < 0) top = Math.max(0, top + pixels - 50); |
else bot = Math.min(cm.doc.height, bot + pixels + 50); |
- updateDisplay(cm, [], {top: top, bottom: bot}); |
+ updateDisplay(cm, {top: top, bottom: bot}); |
} |
if (wheelSamples < 20) { |
@@ -2063,6 +2902,9 @@ window.CodeMirror = (function() { |
} |
} |
+ // KEY EVENTS |
+ |
+ // Run a handler that was bound to a key. |
function doHandleBinding(cm, bound, dropShift) { |
if (typeof bound == "string") { |
bound = commands[bound]; |
@@ -2071,18 +2913,19 @@ window.CodeMirror = (function() { |
// Ensure previous input has been read, so that the handler sees a |
// consistent view of the document |
if (cm.display.pollingFast && readInput(cm)) cm.display.pollingFast = false; |
- var doc = cm.doc, prevShift = doc.sel.shift, done = false; |
+ var prevShift = cm.display.shift, done = false; |
try { |
if (isReadOnly(cm)) cm.state.suppressEdits = true; |
- if (dropShift) doc.sel.shift = false; |
+ if (dropShift) cm.display.shift = false; |
done = bound(cm) != Pass; |
} finally { |
- doc.sel.shift = prevShift; |
+ cm.display.shift = prevShift; |
cm.state.suppressEdits = false; |
} |
return done; |
} |
+ // Collect the currently active keymaps. |
function allKeyMaps(cm) { |
var maps = cm.state.keyMaps.slice(0); |
if (cm.options.extraKeys) maps.push(cm.options.extraKeys); |
@@ -2091,8 +2934,9 @@ window.CodeMirror = (function() { |
} |
var maybeTransition; |
+ // Handle a key from the keydown event. |
function handleKeyBinding(cm, e) { |
- // Handle auto keymap transitions |
+ // Handle automatic keymap transitions |
var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto; |
clearTimeout(maybeTransition); |
if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() { |
@@ -2122,12 +2966,12 @@ window.CodeMirror = (function() { |
if (handled) { |
e_preventDefault(e); |
restartBlink(cm); |
- if (ie_lt9) { e.oldKeyCode = e.keyCode; e.keyCode = 0; } |
signalLater(cm, "keyHandled", cm, name, e); |
} |
return handled; |
} |
+ // Handle a key from the keypress event |
function handleCharBinding(cm, e, ch) { |
var handled = lookupKey("'" + ch + "'", allKeyMaps(cm), |
function(b) { return doHandleBinding(cm, b, true); }); |
@@ -2139,43 +2983,43 @@ window.CodeMirror = (function() { |
return handled; |
} |
- function onKeyUp(e) { |
- var cm = this; |
- if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; |
- if (e.keyCode == 16) cm.doc.sel.shift = false; |
- } |
- |
var lastStoppedKey = null; |
function onKeyDown(e) { |
var cm = this; |
- if (!cm.state.focused) onFocus(cm); |
- if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; |
- if (old_ie && e.keyCode == 27) e.returnValue = false; |
- var code = e.keyCode; |
+ ensureFocus(cm); |
+ if (signalDOMEvent(cm, e)) return; |
// IE does strange things with escape. |
- cm.doc.sel.shift = code == 16 || e.shiftKey; |
- // First give onKeyEvent option a chance to handle this. |
+ if (ie_upto10 && e.keyCode == 27) e.returnValue = false; |
+ var code = e.keyCode; |
+ cm.display.shift = code == 16 || e.shiftKey; |
var handled = handleKeyBinding(cm, e); |
- if (opera) { |
+ if (presto) { |
lastStoppedKey = handled ? code : null; |
// Opera has no cut event... we try to at least catch the key combo |
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) |
- cm.replaceSelection(""); |
+ cm.replaceSelection("", null, "cut"); |
} |
} |
+ function onKeyUp(e) { |
+ if (signalDOMEvent(this, e)) return; |
+ if (e.keyCode == 16) this.doc.sel.shift = false; |
+ } |
+ |
function onKeyPress(e) { |
var cm = this; |
- if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; |
+ if (signalDOMEvent(cm, e)) return; |
var keyCode = e.keyCode, charCode = e.charCode; |
- if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} |
- if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return; |
+ if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} |
+ if (((presto && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return; |
var ch = String.fromCharCode(charCode == null ? keyCode : charCode); |
if (handleCharBinding(cm, e, ch)) return; |
- if (ie && !ie_lt9) cm.display.inputHasSelection = null; |
+ if (ie && !ie_upto8) cm.display.inputHasSelection = null; |
fastPoll(cm); |
} |
+ // FOCUS/BLUR EVENTS |
+ |
function onFocus(cm) { |
if (cm.options.readOnly == "nocursor") return; |
if (!cm.state.focused) { |
@@ -2184,7 +3028,7 @@ window.CodeMirror = (function() { |
if (cm.display.wrapper.className.search(/\bCodeMirror-focused\b/) == -1) |
cm.display.wrapper.className += " CodeMirror-focused"; |
if (!cm.curOp) { |
- resetInput(cm, true); |
+ resetInput(cm); |
if (webkit) setTimeout(bind(resetInput, cm, true), 0); // Issue #1730 |
} |
} |
@@ -2198,37 +3042,46 @@ window.CodeMirror = (function() { |
cm.display.wrapper.className = cm.display.wrapper.className.replace(" CodeMirror-focused", ""); |
} |
clearInterval(cm.display.blinker); |
- setTimeout(function() {if (!cm.state.focused) cm.doc.sel.shift = false;}, 150); |
+ setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150); |
} |
+ // CONTEXT MENU HANDLING |
+ |
var detectingSelectAll; |
+ // To make the context menu work, we need to briefly unhide the |
+ // textarea (making it as unobtrusive as possible) to let the |
+ // right-click take effect on it. |
function onContextMenu(cm, e) { |
if (signalDOMEvent(cm, e, "contextmenu")) return; |
- var display = cm.display, sel = cm.doc.sel; |
+ var display = cm.display; |
if (eventInWidget(display, e) || contextMenuInGutter(cm, e)) return; |
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; |
- if (!pos || opera) return; // Opera is difficult. |
+ if (!pos || presto) return; // Opera is difficult. |
// Reset the current text selection only if the click is done outside of the selection |
// and 'resetSelectionOnContextMenu' option is true. |
var reset = cm.options.resetSelectionOnContextMenu; |
- if (reset && (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))) |
- operation(cm, setSelection)(cm.doc, pos, pos); |
+ if (reset && cm.doc.sel.contains(pos) == -1) |
+ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); |
var oldCSS = display.input.style.cssText; |
display.inputDiv.style.position = "absolute"; |
display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) + |
- "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: transparent; outline: none;" + |
- "border-width: 0; outline: none; overflow: hidden; opacity: .05; -ms-opacity: .05; filter: alpha(opacity=5);"; |
+ "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " + |
+ (ie ? "rgba(255, 255, 255, .05)" : "transparent") + |
+ "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; |
focusInput(cm); |
- resetInput(cm, true); |
+ resetInput(cm); |
// Adds "Select all" to context menu in FF |
- if (posEq(sel.from, sel.to)) display.input.value = display.prevInput = " "; |
+ if (!cm.somethingSelected()) display.input.value = display.prevInput = " "; |
+ // Select-all will be greyed out if there's nothing to select, so |
+ // this adds a zero-width space so that we can later check whether |
+ // it got selected. |
function prepareSelectAllHack() { |
if (display.input.selectionStart != null) { |
- var extval = display.input.value = "\u200b" + (posEq(sel.from, sel.to) ? "" : display.input.value); |
+ var extval = display.input.value = "\u200b" + (cm.somethingSelected() ? display.input.value : ""); |
display.prevInput = "\u200b"; |
display.input.selectionStart = 1; display.input.selectionEnd = extval.length; |
} |
@@ -2236,12 +3089,12 @@ window.CodeMirror = (function() { |
function rehide() { |
display.inputDiv.style.position = "relative"; |
display.input.style.cssText = oldCSS; |
- if (ie_lt9) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos; |
+ if (ie_upto8) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos; |
slowPoll(cm); |
// Try to detect the user choosing select-all |
if (display.input.selectionStart != null) { |
- if (!old_ie || ie_lt9) prepareSelectAllHack(); |
+ if (!ie || ie_upto8) prepareSelectAllHack(); |
clearTimeout(detectingSelectAll); |
var i = 0, poll = function(){ |
if (display.prevInput == "\u200b" && display.input.selectionStart == 0) |
@@ -2253,8 +3106,8 @@ window.CodeMirror = (function() { |
} |
} |
- if (old_ie && !ie_lt9) prepareSelectAllHack(); |
- if (captureMiddleClick) { |
+ if (ie && !ie_upto8) prepareSelectAllHack(); |
+ if (captureRightClick) { |
e_stop(e); |
var mouseup = function() { |
off(window, "mouseup", mouseup); |
@@ -2266,54 +3119,71 @@ window.CodeMirror = (function() { |
} |
} |
+ function contextMenuInGutter(cm, e) { |
+ if (!hasHandler(cm, "gutterContextMenu")) return false; |
+ return gutterEvent(cm, e, "gutterContextMenu", false, signal); |
+ } |
+ |
// UPDATING |
+ // Compute the position of the end of a change (its 'to' property |
+ // refers to the pre-change end). |
var changeEnd = CodeMirror.changeEnd = function(change) { |
if (!change.text) return change.to; |
return Pos(change.from.line + change.text.length - 1, |
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)); |
}; |
- // Make sure a position will be valid after the given change. |
- function clipPostChange(doc, change, pos) { |
- if (!posLess(change.from, pos)) return clipPos(doc, pos); |
- var diff = (change.text.length - 1) - (change.to.line - change.from.line); |
- if (pos.line > change.to.line + diff) { |
- var preLine = pos.line - diff, lastLine = doc.first + doc.size - 1; |
- if (preLine > lastLine) return Pos(lastLine, getLine(doc, lastLine).text.length); |
- return clipToLen(pos, getLine(doc, preLine).text.length); |
- } |
- if (pos.line == change.to.line + diff) |
- return clipToLen(pos, lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0) + |
- getLine(doc, change.to.line).text.length - change.to.ch); |
- var inside = pos.line - change.from.line; |
- return clipToLen(pos, change.text[inside].length + (inside ? 0 : change.from.ch)); |
- } |
- |
- // Hint can be null|"end"|"start"|"around"|{anchor,head} |
- function computeSelAfterChange(doc, change, hint) { |
- if (hint && typeof hint == "object") // Assumed to be {anchor, head} object |
- return {anchor: clipPostChange(doc, change, hint.anchor), |
- head: clipPostChange(doc, change, hint.head)}; |
- |
- if (hint == "start") return {anchor: change.from, head: change.from}; |
- |
- var end = changeEnd(change); |
- if (hint == "around") return {anchor: change.from, head: end}; |
- if (hint == "end") return {anchor: end, head: end}; |
- |
- // hint is null, leave the selection alone as much as possible |
- var adjustPos = function(pos) { |
- if (posLess(pos, change.from)) return pos; |
- if (!posLess(change.to, pos)) return end; |
- |
- var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; |
- if (pos.line == change.to.line) ch += end.ch - change.to.ch; |
- return Pos(line, ch); |
- }; |
- return {anchor: adjustPos(doc.sel.anchor), head: adjustPos(doc.sel.head)}; |
+ // Adjust a position to refer to the post-change position of the |
+ // same text, or the end of the change if the change covers it. |
+ function adjustForChange(pos, change) { |
+ if (cmp(pos, change.from) < 0) return pos; |
+ if (cmp(pos, change.to) <= 0) return changeEnd(change); |
+ |
+ var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; |
+ if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch; |
+ return Pos(line, ch); |
+ } |
+ |
+ function computeSelAfterChange(doc, change) { |
+ var out = []; |
+ for (var i = 0; i < doc.sel.ranges.length; i++) { |
+ var range = doc.sel.ranges[i]; |
+ out.push(new Range(adjustForChange(range.anchor, change), |
+ adjustForChange(range.head, change))); |
+ } |
+ return normalizeSelection(out, doc.sel.primIndex); |
+ } |
+ |
+ function offsetPos(pos, old, nw) { |
+ if (pos.line == old.line) |
+ return Pos(nw.line, pos.ch - old.ch + nw.ch); |
+ else |
+ return Pos(nw.line + (pos.line - old.line), pos.ch); |
+ } |
+ |
+ // Used by replaceSelections to allow moving the selection to the |
+ // start or around the replaced test. Hint may be "start" or "around". |
+ function computeReplacedSel(doc, changes, hint) { |
+ var out = []; |
+ var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; |
+ for (var i = 0; i < changes.length; i++) { |
+ var change = changes[i]; |
+ var from = offsetPos(change.from, oldPrev, newPrev); |
+ var to = offsetPos(changeEnd(change), oldPrev, newPrev); |
+ oldPrev = change.to; |
+ newPrev = to; |
+ if (hint == "around") { |
+ var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; |
+ out[i] = new Range(inv ? to : from, inv ? from : to); |
+ } else { |
+ out[i] = new Range(from, from); |
+ } |
+ } |
+ return new Selection(out, doc.sel.primIndex); |
} |
+ // Allow "beforeChange" event handlers to influence a change |
function filterChange(doc, change, update) { |
var obj = { |
canceled: false, |
@@ -2336,11 +3206,11 @@ window.CodeMirror = (function() { |
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}; |
} |
- // Replace the range from from to to by the strings in replacement. |
- // change is a {from, to, text [, origin]} object |
- function makeChange(doc, change, selUpdate, ignoreReadOnly) { |
+ // Apply a change to a document, and add it to the document's |
+ // history, and propagating it to all linked documents. |
+ function makeChange(doc, change, ignoreReadOnly) { |
if (doc.cm) { |
- if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, selUpdate, ignoreReadOnly); |
+ if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly); |
if (doc.cm.state.suppressEdits) return; |
} |
@@ -2353,19 +3223,17 @@ window.CodeMirror = (function() { |
// of read-only spans in its range. |
var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); |
if (split) { |
- for (var i = split.length - 1; i >= 1; --i) |
- makeChangeNoReadonly(doc, {from: split[i].from, to: split[i].to, text: [""]}); |
- if (split.length) |
- makeChangeNoReadonly(doc, {from: split[0].from, to: split[0].to, text: change.text}, selUpdate); |
+ for (var i = split.length - 1; i >= 0; --i) |
+ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}); |
} else { |
- makeChangeNoReadonly(doc, change, selUpdate); |
+ makeChangeInner(doc, change); |
} |
} |
- function makeChangeNoReadonly(doc, change, selUpdate) { |
- if (change.text.length == 1 && change.text[0] == "" && posEq(change.from, change.to)) return; |
- var selAfter = computeSelAfterChange(doc, change, selUpdate); |
- addToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); |
+ function makeChangeInner(doc, change) { |
+ if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return; |
+ var selAfter = computeSelAfterChange(doc, change); |
+ addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); |
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); |
var rebased = []; |
@@ -2379,17 +3247,41 @@ window.CodeMirror = (function() { |
}); |
} |
- function makeChangeFromHistory(doc, type) { |
+ // Revert a change stored in a document's history. |
+ function makeChangeFromHistory(doc, type, allowSelectionOnly) { |
if (doc.cm && doc.cm.state.suppressEdits) return; |
- var hist = doc.history; |
- var event = (type == "undo" ? hist.done : hist.undone).pop(); |
- if (!event) return; |
+ var hist = doc.history, event, selAfter = doc.sel; |
+ var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; |
+ |
+ // Verify that there is a useable event (so that ctrl-z won't |
+ // needlessly clear selection events) |
+ for (var i = 0; i < source.length; i++) { |
+ event = source[i]; |
+ if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) |
+ break; |
+ } |
+ if (i == source.length) return; |
+ hist.lastOrigin = hist.lastSelOrigin = null; |
+ |
+ for (;;) { |
+ event = source.pop(); |
+ if (event.ranges) { |
+ pushSelectionToHistory(event, dest); |
+ if (allowSelectionOnly && !event.equals(doc.sel)) { |
+ setSelection(doc, event, {clearRedo: false}); |
+ return; |
+ } |
+ selAfter = event; |
+ } |
+ else break; |
+ } |
- var anti = {changes: [], anchorBefore: event.anchorAfter, headBefore: event.headAfter, |
- anchorAfter: event.anchorBefore, headAfter: event.headBefore, |
- generation: hist.generation}; |
- (type == "undo" ? hist.undone : hist.done).push(anti); |
+ // Build up a reverse change object to add to the opposite history |
+ // stack (redo when undoing, and vice versa). |
+ var antiChanges = []; |
+ pushSelectionToHistory(selAfter, dest); |
+ dest.push({changes: antiChanges, generation: hist.generation}); |
hist.generation = event.generation || ++hist.maxGeneration; |
var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); |
@@ -2398,17 +3290,18 @@ window.CodeMirror = (function() { |
var change = event.changes[i]; |
change.origin = type; |
if (filter && !filterChange(doc, change, false)) { |
- (type == "undo" ? hist.done : hist.undone).length = 0; |
+ source.length = 0; |
return; |
} |
- anti.changes.push(historyChangeFromChange(doc, change)); |
+ antiChanges.push(historyChangeFromChange(doc, change)); |
- var after = i ? computeSelAfterChange(doc, change, null) |
- : {anchor: event.anchorBefore, head: event.headBefore}; |
+ var after = i ? computeSelAfterChange(doc, change, null) : lst(source); |
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); |
+ if (doc.cm) ensureCursorVisible(doc.cm); |
var rebased = []; |
+ // Propagate to the linked documents |
linkedDocs(doc, function(doc, sharedHist) { |
if (!sharedHist && indexOf(rebased, doc.history) == -1) { |
rebaseHist(doc.history, change); |
@@ -2419,14 +3312,19 @@ window.CodeMirror = (function() { |
} |
} |
+ // Sub-views need their line numbers shifted when text is added |
+ // above or below them in the parent document. |
function shiftDoc(doc, distance) { |
- function shiftPos(pos) {return Pos(pos.line + distance, pos.ch);} |
doc.first += distance; |
- if (doc.cm) regChange(doc.cm, doc.first, doc.first, distance); |
- doc.sel.head = shiftPos(doc.sel.head); doc.sel.anchor = shiftPos(doc.sel.anchor); |
- doc.sel.from = shiftPos(doc.sel.from); doc.sel.to = shiftPos(doc.sel.to); |
+ doc.sel = new Selection(map(doc.sel.ranges, function(range) { |
+ return new Range(Pos(range.anchor.line + distance, range.anchor.ch), |
+ Pos(range.head.line + distance, range.head.ch)); |
+ }), doc.sel.primIndex); |
+ if (doc.cm) regChange(doc.cm, doc.first, doc.first - distance, distance); |
} |
+ // More lower-level change function, handling only a single document |
+ // (not linked ones). |
function makeChangeSingleDoc(doc, change, selAfter, spans) { |
if (doc.cm && !doc.cm.curOp) |
return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans); |
@@ -2453,16 +3351,19 @@ window.CodeMirror = (function() { |
change.removed = getBetween(doc, change.from, change.to); |
if (!selAfter) selAfter = computeSelAfterChange(doc, change, null); |
- if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans, selAfter); |
- else updateDoc(doc, change, spans, selAfter); |
+ if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans); |
+ else updateDoc(doc, change, spans); |
+ setSelectionNoUndo(doc, selAfter, sel_dontScroll); |
} |
- function makeChangeSingleDocInEditor(cm, change, spans, selAfter) { |
+ // Handle the interaction of a change to a document with the editor |
+ // that this document is part of. |
+ function makeChangeSingleDocInEditor(cm, change, spans) { |
var doc = cm.doc, display = cm.display, from = change.from, to = change.to; |
var recomputeMaxLength = false, checkWidthStart = from.line; |
if (!cm.options.lineWrapping) { |
- checkWidthStart = lineNo(visualLine(doc, getLine(doc, from.line))); |
+ checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); |
doc.iter(checkWidthStart, to.line + 1, function(line) { |
if (line == display.maxLine) { |
recomputeMaxLength = true; |
@@ -2471,14 +3372,14 @@ window.CodeMirror = (function() { |
}); |
} |
- if (!posLess(doc.sel.head, change.from) && !posLess(change.to, doc.sel.head)) |
+ if (doc.sel.contains(change.from, change.to) > -1) |
cm.curOp.cursorActivity = true; |
- updateDoc(doc, change, spans, selAfter, estimateHeight(cm)); |
+ updateDoc(doc, change, spans, estimateHeight(cm)); |
if (!cm.options.lineWrapping) { |
doc.iter(checkWidthStart, from.line + change.text.length, function(line) { |
- var len = lineLength(doc, line); |
+ var len = lineLength(line); |
if (len > display.maxLineLength) { |
display.maxLine = line; |
display.maxLineLength = len; |
@@ -2495,184 +3396,38 @@ window.CodeMirror = (function() { |
var lendiff = change.text.length - (to.line - from.line) - 1; |
// Remember that these lines changed, for updating the display |
- regChange(cm, from.line, to.line + 1, lendiff); |
- |
- if (hasHandler(cm, "change")) { |
- var changeObj = {from: from, to: to, |
- text: change.text, |
- removed: change.removed, |
- origin: change.origin}; |
- if (cm.curOp.textChanged) { |
- for (var cur = cm.curOp.textChanged; cur.next; cur = cur.next) {} |
- cur.next = changeObj; |
- } else cm.curOp.textChanged = changeObj; |
- } |
+ if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) |
+ regLineChange(cm, from.line, "text"); |
+ else |
+ regChange(cm, from.line, to.line + 1, lendiff); |
+ |
+ if (hasHandler(cm, "change") || hasHandler(cm, "changes")) |
+ (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push({ |
+ from: from, to: to, |
+ text: change.text, |
+ removed: change.removed, |
+ origin: change.origin |
+ }); |
} |
function replaceRange(doc, code, from, to, origin) { |
if (!to) to = from; |
- if (posLess(to, from)) { var tmp = to; to = from; from = tmp; } |
+ if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; } |
if (typeof code == "string") code = splitLines(code); |
- makeChange(doc, {from: from, to: to, text: code, origin: origin}, null); |
- } |
- |
- // POSITION OBJECT |
- |
- function Pos(line, ch) { |
- if (!(this instanceof Pos)) return new Pos(line, ch); |
- this.line = line; this.ch = ch; |
- } |
- CodeMirror.Pos = Pos; |
- |
- function posEq(a, b) {return a.line == b.line && a.ch == b.ch;} |
- function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);} |
- function cmp(a, b) {return a.line - b.line || a.ch - b.ch;} |
- function copyPos(x) {return Pos(x.line, x.ch);} |
- |
- // SELECTION |
- |
- function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));} |
- function clipPos(doc, pos) { |
- if (pos.line < doc.first) return Pos(doc.first, 0); |
- var last = doc.first + doc.size - 1; |
- if (pos.line > last) return Pos(last, getLine(doc, last).text.length); |
- return clipToLen(pos, getLine(doc, pos.line).text.length); |
- } |
- function clipToLen(pos, linelen) { |
- var ch = pos.ch; |
- if (ch == null || ch > linelen) return Pos(pos.line, linelen); |
- else if (ch < 0) return Pos(pos.line, 0); |
- else return pos; |
- } |
- function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;} |
- |
- // If shift is held, this will move the selection anchor. Otherwise, |
- // it'll set the whole selection. |
- function extendSelection(doc, pos, other, bias) { |
- if (doc.sel.shift || doc.sel.extend) { |
- var anchor = doc.sel.anchor; |
- if (other) { |
- var posBefore = posLess(pos, anchor); |
- if (posBefore != posLess(other, anchor)) { |
- anchor = pos; |
- pos = other; |
- } else if (posBefore != posLess(pos, other)) { |
- pos = other; |
- } |
- } |
- setSelection(doc, anchor, pos, bias); |
- } else { |
- setSelection(doc, pos, other || pos, bias); |
- } |
- if (doc.cm) doc.cm.curOp.userSelChange = true; |
- } |
- |
- function filterSelectionChange(doc, anchor, head) { |
- var obj = {anchor: anchor, head: head}; |
- signal(doc, "beforeSelectionChange", doc, obj); |
- if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); |
- obj.anchor = clipPos(doc, obj.anchor); obj.head = clipPos(doc, obj.head); |
- return obj; |
- } |
- |
- // Update the selection. Last two args are only used by |
- // updateDoc, since they have to be expressed in the line |
- // numbers before the update. |
- function setSelection(doc, anchor, head, bias, checkAtomic) { |
- if (!checkAtomic && hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) { |
- var filtered = filterSelectionChange(doc, anchor, head); |
- head = filtered.head; |
- anchor = filtered.anchor; |
- } |
- |
- var sel = doc.sel; |
- sel.goalColumn = null; |
- if (bias == null) bias = posLess(head, sel.head) ? -1 : 1; |
- // Skip over atomic spans. |
- if (checkAtomic || !posEq(anchor, sel.anchor)) |
- anchor = skipAtomic(doc, anchor, bias, checkAtomic != "push"); |
- if (checkAtomic || !posEq(head, sel.head)) |
- head = skipAtomic(doc, head, bias, checkAtomic != "push"); |
- |
- if (posEq(sel.anchor, anchor) && posEq(sel.head, head)) return; |
- |
- sel.anchor = anchor; sel.head = head; |
- var inv = posLess(head, anchor); |
- sel.from = inv ? head : anchor; |
- sel.to = inv ? anchor : head; |
- |
- if (doc.cm) |
- doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = |
- doc.cm.curOp.cursorActivity = true; |
- |
- signalLater(doc, "cursorActivity", doc); |
- } |
- |
- function reCheckSelection(cm) { |
- setSelection(cm.doc, cm.doc.sel.from, cm.doc.sel.to, null, "push"); |
- } |
- |
- function skipAtomic(doc, pos, bias, mayClear) { |
- var flipped = false, curPos = pos; |
- var dir = bias || 1; |
- doc.cantEdit = false; |
- search: for (;;) { |
- var line = getLine(doc, curPos.line); |
- if (line.markedSpans) { |
- for (var i = 0; i < line.markedSpans.length; ++i) { |
- var sp = line.markedSpans[i], m = sp.marker; |
- if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) && |
- (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) { |
- if (mayClear) { |
- signal(m, "beforeCursorEnter"); |
- if (m.explicitlyCleared) { |
- if (!line.markedSpans) break; |
- else {--i; continue;} |
- } |
- } |
- if (!m.atomic) continue; |
- var newPos = m.find()[dir < 0 ? "from" : "to"]; |
- if (posEq(newPos, curPos)) { |
- newPos.ch += dir; |
- if (newPos.ch < 0) { |
- if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1)); |
- else newPos = null; |
- } else if (newPos.ch > line.text.length) { |
- if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0); |
- else newPos = null; |
- } |
- if (!newPos) { |
- if (flipped) { |
- // Driven in a corner -- no valid cursor position found at all |
- // -- try again *with* clearing, if we didn't already |
- if (!mayClear) return skipAtomic(doc, pos, bias, true); |
- // Otherwise, turn off editing until further notice, and return the start of the doc |
- doc.cantEdit = true; |
- return Pos(doc.first, 0); |
- } |
- flipped = true; newPos = pos; dir = -dir; |
- } |
- } |
- curPos = newPos; |
- continue search; |
- } |
- } |
- } |
- return curPos; |
- } |
+ makeChange(doc, {from: from, to: to, text: code, origin: origin}); |
} |
- // SCROLLING |
+ // SCROLLING THINGS INTO VIEW |
- function scrollCursorIntoView(cm) { |
- var coords = scrollPosIntoView(cm, cm.doc.sel.head, null, cm.options.cursorScrollMargin); |
- if (!cm.state.focused) return; |
- var display = cm.display, box = getRect(display.sizer), doScroll = null; |
+ // If an editor sits on the top or bottom of the window, partially |
+ // scrolled out of view, this ensures that the cursor is visible. |
+ function maybeScrollWindow(cm, coords) { |
+ var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; |
if (coords.top + box.top < 0) doScroll = true; |
else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; |
if (doScroll != null && !phantom) { |
var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " + |
- (coords.top - display.viewOffset) + "px; height: " + |
+ (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " + |
(coords.bottom - coords.top + scrollerCutOff) + "px; left: " + |
coords.left + "px; width: 2px;"); |
cm.display.lineSpace.appendChild(scrollNode); |
@@ -2681,6 +3436,9 @@ window.CodeMirror = (function() { |
} |
} |
+ // Scroll a given position into view (immediately), verifying that |
+ // it actually became visible (as line heights are accurately |
+ // measured, the position of something may 'drift' during drawing). |
function scrollPosIntoView(cm, pos, end, margin) { |
if (margin == null) margin = 0; |
for (;;) { |
@@ -2703,16 +3461,22 @@ window.CodeMirror = (function() { |
} |
} |
+ // Scroll a given set of coordinates into view (immediately). |
function scrollIntoView(cm, x1, y1, x2, y2) { |
var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); |
if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop); |
if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft); |
} |
+ // Calculate a new scroll position needed to scroll the given |
+ // rectangle into view. Returns an object with scrollTop and |
+ // scrollLeft properties. When these are undefined, the |
+ // vertical/horizontal position does not need to be adjusted. |
function calculateScrollPos(cm, x1, y1, x2, y2) { |
var display = cm.display, snapMargin = textHeight(cm.display); |
if (y1 < 0) y1 = 0; |
- var screen = display.scroller.clientHeight - scrollerCutOff, screentop = display.scroller.scrollTop, result = {}; |
+ var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; |
+ var screen = display.scroller.clientHeight - scrollerCutOff, result = {}; |
var docBottom = cm.doc.height + paddingVert(display); |
var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; |
if (y1 < screentop) { |
@@ -2722,7 +3486,8 @@ window.CodeMirror = (function() { |
if (newTop != screentop) result.scrollTop = newTop; |
} |
- var screenw = display.scroller.clientWidth - scrollerCutOff, screenleft = display.scroller.scrollLeft; |
+ var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; |
+ var screenw = display.scroller.clientWidth - scrollerCutOff; |
x1 += display.gutters.offsetWidth; x2 += display.gutters.offsetWidth; |
var gutterw = display.gutters.offsetWidth; |
var atLeft = x1 < gutterw + 10; |
@@ -2735,30 +3500,65 @@ window.CodeMirror = (function() { |
return result; |
} |
- function updateScrollPos(cm, left, top) { |
- cm.curOp.updateScrollPos = {scrollLeft: left == null ? cm.doc.scrollLeft : left, |
- scrollTop: top == null ? cm.doc.scrollTop : top}; |
+ // Store a relative adjustment to the scroll position in the current |
+ // operation (to be applied when the operation finishes). |
+ function addToScrollPos(cm, left, top) { |
+ if (left != null || top != null) resolveScrollToPos(cm); |
+ if (left != null) |
+ cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left; |
+ if (top != null) |
+ cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; |
+ } |
+ |
+ // Make sure that at the end of the operation the current cursor is |
+ // shown. |
+ function ensureCursorVisible(cm) { |
+ resolveScrollToPos(cm); |
+ var cur = cm.getCursor(), from = cur, to = cur; |
+ if (!cm.options.lineWrapping) { |
+ from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur; |
+ to = Pos(cur.line, cur.ch + 1); |
+ } |
+ cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true}; |
} |
- function addToScrollPos(cm, left, top) { |
- var pos = cm.curOp.updateScrollPos || (cm.curOp.updateScrollPos = {scrollLeft: cm.doc.scrollLeft, scrollTop: cm.doc.scrollTop}); |
- var scroll = cm.display.scroller; |
- pos.scrollTop = Math.max(0, Math.min(scroll.scrollHeight - scroll.clientHeight, pos.scrollTop + top)); |
- pos.scrollLeft = Math.max(0, Math.min(scroll.scrollWidth - scroll.clientWidth, pos.scrollLeft + left)); |
+ // When an operation has its scrollToPos property set, and another |
+ // scroll action is applied before the end of the operation, this |
+ // 'simulates' scrolling that position into view in a cheap way, so |
+ // that the effect of intermediate scroll commands is not ignored. |
+ function resolveScrollToPos(cm) { |
+ var range = cm.curOp.scrollToPos; |
+ if (range) { |
+ cm.curOp.scrollToPos = null; |
+ var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to); |
+ var sPos = calculateScrollPos(cm, Math.min(from.left, to.left), |
+ Math.min(from.top, to.top) - range.margin, |
+ Math.max(from.right, to.right), |
+ Math.max(from.bottom, to.bottom) + range.margin); |
+ cm.scrollTo(sPos.scrollLeft, sPos.scrollTop); |
+ } |
} |
// API UTILITIES |
+ // Indent the given line. The how parameter can be "smart", |
+ // "add"/null, "subtract", or "prev". When aggressive is false |
+ // (typically set to true for forced single-line indents), empty |
+ // lines are not indented, and places where the mode returns Pass |
+ // are left alone. |
function indentLine(cm, n, how, aggressive) { |
- var doc = cm.doc; |
+ var doc = cm.doc, state; |
if (how == null) how = "add"; |
if (how == "smart") { |
+ // Fall back to "prev" when the mode doesn't have an indentation |
+ // method. |
if (!cm.doc.mode.indent) how = "prev"; |
- else var state = getStateBefore(cm, n); |
+ else state = getStateBefore(cm, n); |
} |
var tabSize = cm.options.tabSize; |
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); |
+ if (line.stateAfter) line.stateAfter = null; |
var curSpaceString = line.text.match(/^\s*/)[0], indentation; |
if (!aggressive && !/\S/.test(line.text)) { |
indentation = 0; |
@@ -2787,23 +3587,70 @@ window.CodeMirror = (function() { |
for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} |
if (pos < indentation) indentString += spaceStr(indentation - pos); |
- if (indentString != curSpaceString) |
+ if (indentString != curSpaceString) { |
replaceRange(cm.doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); |
- else if (doc.sel.head.line == n && doc.sel.head.ch < curSpaceString.length) |
- setSelection(doc, Pos(n, curSpaceString.length), Pos(n, curSpaceString.length), 1); |
+ } else { |
+ // Ensure that, if the cursor was in the whitespace at the start |
+ // of the line, it is moved to the end of that space. |
+ for (var i = 0; i < doc.sel.ranges.length; i++) { |
+ var range = doc.sel.ranges[i]; |
+ if (range.head.line == n && range.head.ch < curSpaceString.length) { |
+ var pos = Pos(n, curSpaceString.length); |
+ replaceOneSelection(doc, i, new Range(pos, pos)); |
+ break; |
+ } |
+ } |
+ } |
line.stateAfter = null; |
} |
- function changeLine(cm, handle, op) { |
+ // Utility for applying a change to a line by handle or number, |
+ // returning the number and optionally registering the line as |
+ // changed. |
+ function changeLine(cm, handle, changeType, op) { |
var no = handle, line = handle, doc = cm.doc; |
if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle)); |
else no = lineNo(handle); |
if (no == null) return null; |
- if (op(line, no)) regChange(cm, no, no + 1); |
+ if (op(line, no)) regLineChange(cm, no, changeType); |
else return null; |
return line; |
} |
+ // Helper for deleting text near the selection(s), used to implement |
+ // backspace, delete, and similar functionality. |
+ function deleteNearSelection(cm, compute) { |
+ var ranges = cm.doc.sel.ranges, kill = []; |
+ // Build up a set of ranges to kill first, merging overlapping |
+ // ranges. |
+ for (var i = 0; i < ranges.length; i++) { |
+ var toKill = compute(ranges[i]); |
+ while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { |
+ var replaced = kill.pop(); |
+ if (cmp(replaced.from, toKill.from) < 0) { |
+ toKill.from = replaced.from; |
+ break; |
+ } |
+ } |
+ kill.push(toKill); |
+ } |
+ // Next, remove those actual ranges. |
+ runInOp(cm, function() { |
+ for (var i = kill.length - 1; i >= 0; i--) |
+ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); |
+ ensureCursorVisible(cm); |
+ }); |
+ } |
+ |
+ // Used for horizontal relative motion. Dir is -1 or 1 (left or |
+ // right), unit can be "char", "column" (like char, but doesn't |
+ // cross line boundaries), "word" (across next word), or "group" (to |
+ // the start of next group of word or non-word-non-whitespace |
+ // chars). The visually param controls whether, in right-to-left |
+ // text, direction 1 means to move towards the next index in the |
+ // string, or towards the character to the right of the current |
+ // position. The resulting position will have a hitSide=true |
+ // property if it reached the end of the document. |
function findPosH(doc, pos, dir, unit, visually) { |
var line = pos.line, ch = pos.ch, origDir = dir; |
var lineObj = getLine(doc, line); |
@@ -2833,13 +3680,15 @@ window.CodeMirror = (function() { |
if (dir < 0 && !moveOnce(!first)) break; |
var cur = lineObj.text.charAt(ch) || "\n"; |
var type = isWordChar(cur) ? "w" |
- : !group ? null |
- : /\s/.test(cur) ? null |
+ : group && cur == "\n" ? "n" |
+ : !group || /\s/.test(cur) ? null |
: "p"; |
+ if (group && !first && !type) type = "s"; |
if (sawType && sawType != type) { |
if (dir < 0) {dir = 1; moveOnce();} |
break; |
} |
+ |
if (type) sawType = type; |
if (dir > 0 && !moveOnce(!first)) break; |
} |
@@ -2849,6 +3698,9 @@ window.CodeMirror = (function() { |
return result; |
} |
+ // For relative vertical movement. Dir may be -1 or 1. Unit can be |
+ // "page" or "line". The resulting position will have a hitSide=true |
+ // property if it reached the end of the document. |
function findPosV(cm, pos, dir, unit) { |
var doc = cm.doc, x = pos.left, y; |
if (unit == "page") { |
@@ -2866,7 +3718,9 @@ window.CodeMirror = (function() { |
return target; |
} |
- function findWordAt(line, pos) { |
+ // Find the word at the given position (as returned by coordsChar). |
+ function findWordAt(doc, pos) { |
+ var line = getLine(doc, pos.line).text; |
var start = pos.ch, end = pos.ch; |
if (line) { |
if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end; |
@@ -2877,17 +3731,18 @@ window.CodeMirror = (function() { |
while (start > 0 && check(line.charAt(start - 1))) --start; |
while (end < line.length && check(line.charAt(end))) ++end; |
} |
- return {from: Pos(pos.line, start), to: Pos(pos.line, end)}; |
+ return new Range(Pos(pos.line, start), Pos(pos.line, end)); |
} |
- function selectLine(cm, line) { |
- extendSelection(cm.doc, Pos(line, 0), clipPos(cm.doc, Pos(line + 1, 0))); |
- } |
+ // EDITOR METHODS |
- // PROTOTYPE |
+ // The publicly visible API. Note that methodOp(f) means |
+ // 'wrap f in an operation, performed on its `this` parameter'. |
- // The publicly visible API. Note that operation(null, f) means |
- // 'wrap f in an operation, performed on its `this` parameter' |
+ // This is not the complete set of editor methods. Most of the |
+ // methods defined on the Doc type are also injected into |
+ // CodeMirror.prototype, for backwards compatibility and |
+ // convenience. |
CodeMirror.prototype = { |
constructor: CodeMirror, |
@@ -2916,14 +3771,14 @@ window.CodeMirror = (function() { |
} |
}, |
- addOverlay: operation(null, function(spec, options) { |
+ addOverlay: methodOp(function(spec, options) { |
var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); |
if (mode.startState) throw new Error("Overlays may not be stateful."); |
this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque}); |
this.state.modeGen++; |
regChange(this); |
}), |
- removeOverlay: operation(null, function(spec) { |
+ removeOverlay: methodOp(function(spec) { |
var overlays = this.state.overlays; |
for (var i = 0; i < overlays.length; ++i) { |
var cur = overlays[i].modeSpec; |
@@ -2936,18 +3791,29 @@ window.CodeMirror = (function() { |
} |
}), |
- indentLine: operation(null, function(n, dir, aggressive) { |
+ indentLine: methodOp(function(n, dir, aggressive) { |
if (typeof dir != "string" && typeof dir != "number") { |
if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"; |
else dir = dir ? "add" : "subtract"; |
} |
if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive); |
}), |
- indentSelection: operation(null, function(how) { |
- var sel = this.doc.sel; |
- if (posEq(sel.from, sel.to)) return indentLine(this, sel.from.line, how, true); |
- var e = sel.to.line - (sel.to.ch ? 0 : 1); |
- for (var i = sel.from.line; i <= e; ++i) indentLine(this, i, how); |
+ indentSelection: methodOp(function(how) { |
+ var ranges = this.doc.sel.ranges, end = -1; |
+ for (var i = 0; i < ranges.length; i++) { |
+ var range = ranges[i]; |
+ if (!range.empty()) { |
+ var start = Math.max(end, range.from().line); |
+ var to = range.to(); |
+ end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; |
+ for (var j = start; j < end; ++j) |
+ indentLine(this, j, how); |
+ } else if (range.head.line > end) { |
+ indentLine(this, range.head.line, how, true); |
+ end = range.head.line; |
+ if (i == this.doc.sel.primIndex) ensureCursorVisible(this); |
+ } |
+ } |
}), |
// Fetch the parser token for a given character. Useful for hacks |
@@ -2965,7 +3831,6 @@ window.CodeMirror = (function() { |
return {start: stream.start, |
end: stream.pos, |
string: stream.current(), |
- className: style || null, // Deprecated, use 'type' instead |
type: style || null, |
state: state}; |
}, |
@@ -3024,10 +3889,10 @@ window.CodeMirror = (function() { |
}, |
cursorCoords: function(start, mode) { |
- var pos, sel = this.doc.sel; |
- if (start == null) pos = sel.head; |
+ var pos, range = this.doc.sel.primary(); |
+ if (start == null) pos = range.head; |
else if (typeof start == "object") pos = clipPos(this.doc, start); |
- else pos = start ? sel.from : sel.to; |
+ else pos = start ? range.from() : range.to(); |
return cursorCoords(this, pos, mode || "page"); |
}, |
@@ -3049,15 +3914,15 @@ window.CodeMirror = (function() { |
if (line < this.doc.first) line = this.doc.first; |
else if (line > last) { line = last; end = true; } |
var lineObj = getLine(this.doc, line); |
- return intoCoordSystem(this, getLine(this.doc, line), {top: 0, left: 0}, mode || "page").top + |
- (end ? lineObj.height : 0); |
+ return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top + |
+ (end ? this.doc.height - heightAtLine(lineObj) : 0); |
}, |
defaultTextHeight: function() { return textHeight(this.display); }, |
defaultCharWidth: function() { return charWidth(this.display); }, |
- setGutterMarker: operation(null, function(line, gutterID, value) { |
- return changeLine(this, line, function(line) { |
+ setGutterMarker: methodOp(function(line, gutterID, value) { |
+ return changeLine(this, line, "gutter", function(line) { |
var markers = line.gutterMarkers || (line.gutterMarkers = {}); |
markers[gutterID] = value; |
if (!value && isEmpty(markers)) line.gutterMarkers = null; |
@@ -3065,20 +3930,20 @@ window.CodeMirror = (function() { |
}); |
}), |
- clearGutter: operation(null, function(gutterID) { |
+ clearGutter: methodOp(function(gutterID) { |
var cm = this, doc = cm.doc, i = doc.first; |
doc.iter(function(line) { |
if (line.gutterMarkers && line.gutterMarkers[gutterID]) { |
line.gutterMarkers[gutterID] = null; |
- regChange(cm, i, i + 1); |
+ regLineChange(cm, i, "gutter"); |
if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; |
} |
++i; |
}); |
}), |
- addLineClass: operation(null, function(handle, where, cls) { |
- return changeLine(this, handle, function(line) { |
+ addLineClass: methodOp(function(handle, where, cls) { |
+ return changeLine(this, handle, "class", function(line) { |
var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; |
if (!line[prop]) line[prop] = cls; |
else if (new RegExp("(?:^|\\s)" + cls + "(?:$|\\s)").test(line[prop])) return false; |
@@ -3087,8 +3952,8 @@ window.CodeMirror = (function() { |
}); |
}), |
- removeLineClass: operation(null, function(handle, where, cls) { |
- return changeLine(this, handle, function(line) { |
+ removeLineClass: methodOp(function(handle, where, cls) { |
+ return changeLine(this, handle, "class", function(line) { |
var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; |
var cur = line[prop]; |
if (!cur) return false; |
@@ -3103,7 +3968,7 @@ window.CodeMirror = (function() { |
}); |
}), |
- addLineWidget: operation(null, function(handle, node, options) { |
+ addLineWidget: methodOp(function(handle, node, options) { |
return addLineWidget(this, handle, node, options); |
}), |
@@ -3124,7 +3989,7 @@ window.CodeMirror = (function() { |
widgets: line.widgets}; |
}, |
- getViewport: function() { return {from: this.display.showingFrom, to: this.display.showingTo};}, |
+ getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};}, |
addWidget: function(pos, node, scroll, vert, horiz) { |
var display = this.display; |
@@ -3159,9 +4024,9 @@ window.CodeMirror = (function() { |
scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight); |
}, |
- triggerOnKeyDown: operation(null, onKeyDown), |
- triggerOnKeyPress: operation(null, onKeyPress), |
- triggerOnKeyUp: operation(null, onKeyUp), |
+ triggerOnKeyDown: methodOp(onKeyDown), |
+ triggerOnKeyPress: methodOp(onKeyPress), |
+ triggerOnKeyUp: methodOp(onKeyUp), |
execCommand: function(cmd) { |
if (commands.hasOwnProperty(cmd)) |
@@ -3178,20 +4043,25 @@ window.CodeMirror = (function() { |
return cur; |
}, |
- moveH: operation(null, function(dir, unit) { |
- var sel = this.doc.sel, pos; |
- if (sel.shift || sel.extend || posEq(sel.from, sel.to)) |
- pos = findPosH(this.doc, sel.head, dir, unit, this.options.rtlMoveVisually); |
- else |
- pos = dir < 0 ? sel.from : sel.to; |
- extendSelection(this.doc, pos, pos, dir); |
+ moveH: methodOp(function(dir, unit) { |
+ var cm = this; |
+ cm.extendSelectionsBy(function(range) { |
+ if (cm.display.shift || cm.doc.extend || range.empty()) |
+ return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually); |
+ else |
+ return dir < 0 ? range.from() : range.to(); |
+ }, sel_move); |
}), |
- deleteH: operation(null, function(dir, unit) { |
- var sel = this.doc.sel; |
- if (!posEq(sel.from, sel.to)) replaceRange(this.doc, "", sel.from, sel.to, "+delete"); |
- else replaceRange(this.doc, "", sel.from, findPosH(this.doc, sel.head, dir, unit, false), "+delete"); |
- this.curOp.userSelChange = true; |
+ deleteH: methodOp(function(dir, unit) { |
+ var sel = this.doc.sel, doc = this.doc; |
+ if (sel.somethingSelected()) |
+ doc.replaceSelection("", null, "+delete"); |
+ else |
+ deleteNearSelection(this, function(range) { |
+ var other = findPosH(doc, range.head, dir, unit, false); |
+ return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}; |
+ }); |
}), |
findPosV: function(from, amount, unit, goalColumn) { |
@@ -3207,32 +4077,39 @@ window.CodeMirror = (function() { |
return cur; |
}, |
- moveV: operation(null, function(dir, unit) { |
- var sel = this.doc.sel, target, goal; |
- if (sel.shift || sel.extend || posEq(sel.from, sel.to)) { |
- var pos = cursorCoords(this, sel.head, "div"); |
- if (sel.goalColumn != null) pos.left = sel.goalColumn; |
- target = findPosV(this, pos, dir, unit); |
- if (unit == "page") addToScrollPos(this, 0, charCoords(this, target, "div").top - pos.top); |
- goal = pos.left; |
- } else { |
- target = dir < 0 ? sel.from : sel.to; |
- } |
- extendSelection(this.doc, target, target, dir); |
- if (goal != null) sel.goalColumn = goal; |
+ moveV: methodOp(function(dir, unit) { |
+ var cm = this, doc = this.doc, goals = []; |
+ var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected(); |
+ doc.extendSelectionsBy(function(range) { |
+ if (collapse) |
+ return dir < 0 ? range.from() : range.to(); |
+ var headPos = cursorCoords(cm, range.head, "div"); |
+ if (range.goalColumn != null) headPos.left = range.goalColumn; |
+ goals.push(headPos.left); |
+ var pos = findPosV(cm, headPos, dir, unit); |
+ if (unit == "page" && range == doc.sel.primary()) |
+ addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top); |
+ return pos; |
+ }, sel_move); |
+ if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++) |
+ doc.sel.ranges[i].goalColumn = goals[i]; |
}), |
toggleOverwrite: function(value) { |
if (value != null && value == this.state.overwrite) return; |
if (this.state.overwrite = !this.state.overwrite) |
- this.display.cursor.className += " CodeMirror-overwrite"; |
+ this.display.cursorDiv.className += " CodeMirror-overwrite"; |
else |
- this.display.cursor.className = this.display.cursor.className.replace(" CodeMirror-overwrite", ""); |
+ this.display.cursorDiv.className = this.display.cursorDiv.className.replace(" CodeMirror-overwrite", ""); |
+ |
+ signal(this, "overwriteToggle", this, this.state.overwrite); |
}, |
- hasFocus: function() { return document.activeElement == this.display.input; }, |
+ hasFocus: function() { return activeElt() == this.display.input; }, |
- scrollTo: operation(null, function(x, y) { |
- updateScrollPos(this, x, y); |
+ scrollTo: methodOp(function(x, y) { |
+ if (x != null || y != null) resolveScrollToPos(this); |
+ if (x != null) this.curOp.scrollLeft = x; |
+ if (y != null) this.curOp.scrollTop = y; |
}), |
getScrollInfo: function() { |
var scroller = this.display.scroller, co = scrollerCutOff; |
@@ -3241,57 +4118,60 @@ window.CodeMirror = (function() { |
clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co}; |
}, |
- scrollIntoView: operation(null, function(range, margin) { |
- if (range == null) range = {from: this.doc.sel.head, to: null}; |
- else if (typeof range == "number") range = {from: Pos(range, 0), to: null}; |
- else if (range.from == null) range = {from: range, to: null}; |
+ scrollIntoView: methodOp(function(range, margin) { |
+ if (range == null) { |
+ range = {from: this.doc.sel.primary().head, to: null}; |
+ if (margin == null) margin = this.options.cursorScrollMargin; |
+ } else if (typeof range == "number") { |
+ range = {from: Pos(range, 0), to: null}; |
+ } else if (range.from == null) { |
+ range = {from: range, to: null}; |
+ } |
if (!range.to) range.to = range.from; |
- if (!margin) margin = 0; |
+ range.margin = margin || 0; |
- var coords = range; |
if (range.from.line != null) { |
- this.curOp.scrollToPos = {from: range.from, to: range.to, margin: margin}; |
- coords = {from: cursorCoords(this, range.from), |
- to: cursorCoords(this, range.to)}; |
- } |
- var sPos = calculateScrollPos(this, Math.min(coords.from.left, coords.to.left), |
- Math.min(coords.from.top, coords.to.top) - margin, |
- Math.max(coords.from.right, coords.to.right), |
- Math.max(coords.from.bottom, coords.to.bottom) + margin); |
- updateScrollPos(this, sPos.scrollLeft, sPos.scrollTop); |
+ resolveScrollToPos(this); |
+ this.curOp.scrollToPos = range; |
+ } else { |
+ var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left), |
+ Math.min(range.from.top, range.to.top) - range.margin, |
+ Math.max(range.from.right, range.to.right), |
+ Math.max(range.from.bottom, range.to.bottom) + range.margin); |
+ this.scrollTo(sPos.scrollLeft, sPos.scrollTop); |
+ } |
}), |
- setSize: operation(null, function(width, height) { |
+ setSize: methodOp(function(width, height) { |
function interpret(val) { |
return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; |
} |
if (width != null) this.display.wrapper.style.width = interpret(width); |
if (height != null) this.display.wrapper.style.height = interpret(height); |
- if (this.options.lineWrapping) |
- this.display.measureLineCache.length = this.display.measureLineCachePos = 0; |
+ if (this.options.lineWrapping) clearLineMeasurementCache(this); |
this.curOp.forceUpdate = true; |
signal(this, "refresh", this); |
}), |
operation: function(f){return runInOp(this, f);}, |
- refresh: operation(null, function() { |
+ refresh: methodOp(function() { |
var oldHeight = this.display.cachedTextHeight; |
- clearCaches(this); |
- updateScrollPos(this, this.doc.scrollLeft, this.doc.scrollTop); |
regChange(this); |
+ clearCaches(this); |
+ this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop); |
if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) |
estimateLineHeights(this); |
signal(this, "refresh", this); |
}), |
- swapDoc: operation(null, function(doc) { |
+ swapDoc: methodOp(function(doc) { |
var old = this.doc; |
old.cm = null; |
attachDoc(this, doc); |
clearCaches(this); |
- resetInput(this, true); |
- updateScrollPos(this, doc.scrollLeft, doc.scrollTop); |
+ resetInput(this); |
+ this.scrollTo(doc.scrollLeft, doc.scrollTop); |
signalLater(this, "swapDoc", this, old); |
return old; |
}), |
@@ -3305,10 +4185,10 @@ window.CodeMirror = (function() { |
// OPTION DEFAULTS |
- var optionHandlers = CodeMirror.optionHandlers = {}; |
- |
// The default configuration options. |
var defaults = CodeMirror.defaults = {}; |
+ // Functions to run when options are changed. |
+ var optionHandlers = CodeMirror.optionHandlers = {}; |
function option(name, deflt, handle, notOnInit) { |
CodeMirror.defaults[name] = deflt; |
@@ -3316,6 +4196,7 @@ window.CodeMirror = (function() { |
notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle; |
} |
+ // Passed to option handlers when there is no old value. |
var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}}; |
// These two are, on init, called from the constructor because they |
@@ -3352,9 +4233,6 @@ window.CodeMirror = (function() { |
option("keyMap", "default", keyMapChanged); |
option("extraKeys", null); |
- option("onKeyEvent", null); |
- option("onDragEvent", null); |
- |
option("lineWrapping", false, wrappingChanged, true); |
option("gutters", [], function(cm) { |
setGuttersForLineNumbers(cm.options); |
@@ -3382,10 +4260,10 @@ window.CodeMirror = (function() { |
cm.display.disabled = true; |
} else { |
cm.display.disabled = false; |
- if (!val) resetInput(cm, true); |
+ if (!val) resetInput(cm); |
} |
}); |
- option("disableInput", false, function(cm, val) {if (!val) resetInput(cm, true);}, true); |
+ option("disableInput", false, function(cm, val) {if (!val) resetInput(cm);}, true); |
option("dragDrop", true); |
option("cursorBlinkRate", 530); |
@@ -3396,11 +4274,10 @@ window.CodeMirror = (function() { |
option("flattenSpans", true, resetModeState, true); |
option("addModeClass", false, resetModeState, true); |
option("pollInterval", 100); |
- option("undoDepth", 40, function(cm, val){cm.doc.history.undoDepth = val;}); |
- option("historyEventDelay", 500); |
+ option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;}); |
+ option("historyEventDelay", 1250); |
option("viewportMargin", 10, function(cm){cm.refresh();}, true); |
option("maxHighlightLength", 10000, resetModeState, true); |
- option("crudeMeasuringFrom", 10000); |
option("moveInputWithCursor", true, function(cm, val) { |
if (!val) cm.display.inputDiv.style.top = cm.display.inputDiv.style.left = 0; |
}); |
@@ -3415,6 +4292,9 @@ window.CodeMirror = (function() { |
// Known modes, by name and by MIME |
var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {}; |
+ // Extra arguments are stored as the mode's dependencies, which is |
+ // used by (legacy) mechanisms like loadmode.js to automatically |
+ // load a mode. (Preferred mechanism is the require/define calls.) |
CodeMirror.defineMode = function(name, mode) { |
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; |
if (arguments.length > 2) { |
@@ -3428,11 +4308,14 @@ window.CodeMirror = (function() { |
mimeModes[mime] = spec; |
}; |
+ // Given a MIME type, a {name, ...options} config object, or a name |
+ // string, return a mode config object. |
CodeMirror.resolveMode = function(spec) { |
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { |
spec = mimeModes[spec]; |
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { |
var found = mimeModes[spec.name]; |
+ if (typeof found == "string") found = {name: found}; |
spec = createObj(found, spec); |
spec.name = found.name; |
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { |
@@ -3442,6 +4325,8 @@ window.CodeMirror = (function() { |
else return spec || {name: "null"}; |
}; |
+ // Given a mode spec (anything that resolveMode accepts), find and |
+ // initialize an actual mode object. |
CodeMirror.getMode = function(options, spec) { |
var spec = CodeMirror.resolveMode(spec); |
var mfactory = modes[spec.name]; |
@@ -3463,11 +4348,14 @@ window.CodeMirror = (function() { |
return modeObj; |
}; |
+ // Minimal default mode. |
CodeMirror.defineMode("null", function() { |
return {token: function(stream) {stream.skipToEnd();}}; |
}); |
CodeMirror.defineMIME("text/plain", "null"); |
+ // This can be used to attach properties to mode objects from |
+ // outside the actual mode definition. |
var modeExtensions = CodeMirror.modeExtensions = {}; |
CodeMirror.extendMode = function(mode, properties) { |
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); |
@@ -3497,15 +4385,12 @@ window.CodeMirror = (function() { |
helpers[type]._global.push({pred: predicate, val: value}); |
}; |
- // UTILITIES |
- |
- CodeMirror.isWordChar = isWordChar; |
- |
// MODE STATE HANDLING |
- // Utility functions for working with state. Exported because modes |
- // sometimes need to do this. |
- function copyState(mode, state) { |
+ // Utility functions for working with state. Exported because nested |
+ // modes need to do this for their inner modes. |
+ |
+ var copyState = CodeMirror.copyState = function(mode, state) { |
if (state === true) return state; |
if (mode.copyState) return mode.copyState(state); |
var nstate = {}; |
@@ -3515,14 +4400,14 @@ window.CodeMirror = (function() { |
nstate[n] = val; |
} |
return nstate; |
- } |
- CodeMirror.copyState = copyState; |
+ }; |
- function startState(mode, a1, a2) { |
+ var startState = CodeMirror.startState = function(mode, a1, a2) { |
return mode.startState ? mode.startState(a1, a2) : true; |
- } |
- CodeMirror.startState = startState; |
+ }; |
+ // Given a mode and a state (for that mode), find the inner mode and |
+ // state at the position that the state refers to. |
CodeMirror.innerMode = function(mode, state) { |
while (mode.innerMode) { |
var info = mode.innerMode(state); |
@@ -3535,49 +4420,73 @@ window.CodeMirror = (function() { |
// STANDARD COMMANDS |
+ // Commands are parameter-less actions that can be performed on an |
+ // editor, mostly used for keybindings. |
var commands = CodeMirror.commands = { |
- selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()));}, |
+ selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);}, |
+ singleSelection: function(cm) { |
+ cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); |
+ }, |
killLine: function(cm) { |
- var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to); |
- if (!sel && cm.getLine(from.line).length == from.ch) |
- cm.replaceRange("", from, Pos(from.line + 1, 0), "+delete"); |
- else cm.replaceRange("", from, sel ? to : Pos(from.line), "+delete"); |
+ deleteNearSelection(cm, function(range) { |
+ if (range.empty()) { |
+ var len = getLine(cm.doc, range.head.line).text.length; |
+ if (range.head.ch == len && range.head.line < cm.lastLine()) |
+ return {from: range.head, to: Pos(range.head.line + 1, 0)}; |
+ else |
+ return {from: range.head, to: Pos(range.head.line, len)}; |
+ } else { |
+ return {from: range.from(), to: range.to()}; |
+ } |
+ }); |
}, |
deleteLine: function(cm) { |
- var l = cm.getCursor().line; |
- cm.replaceRange("", Pos(l, 0), Pos(l), "+delete"); |
+ deleteNearSelection(cm, function(range) { |
+ return {from: Pos(range.from().line, 0), |
+ to: clipPos(cm.doc, Pos(range.to().line + 1, 0))}; |
+ }); |
}, |
delLineLeft: function(cm) { |
- var cur = cm.getCursor(); |
- cm.replaceRange("", Pos(cur.line, 0), cur, "+delete"); |
+ deleteNearSelection(cm, function(range) { |
+ return {from: Pos(range.from().line, 0), to: range.from()}; |
+ }); |
}, |
undo: function(cm) {cm.undo();}, |
redo: function(cm) {cm.redo();}, |
+ undoSelection: function(cm) {cm.undoSelection();}, |
+ redoSelection: function(cm) {cm.redoSelection();}, |
goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));}, |
goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));}, |
goLineStart: function(cm) { |
- cm.extendSelection(lineStart(cm, cm.getCursor().line)); |
+ cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); }, sel_move); |
}, |
goLineStartSmart: function(cm) { |
- var cur = cm.getCursor(), start = lineStart(cm, cur.line); |
- var line = cm.getLineHandle(start.line); |
- var order = getOrder(line); |
- if (!order || order[0].level == 0) { |
- var firstNonWS = Math.max(0, line.text.search(/\S/)); |
- var inWS = cur.line == start.line && cur.ch <= firstNonWS && cur.ch; |
- cm.extendSelection(Pos(start.line, inWS ? 0 : firstNonWS)); |
- } else cm.extendSelection(start); |
+ cm.extendSelectionsBy(function(range) { |
+ var start = lineStart(cm, range.head.line); |
+ var line = cm.getLineHandle(start.line); |
+ var order = getOrder(line); |
+ if (!order || order[0].level == 0) { |
+ var firstNonWS = Math.max(0, line.text.search(/\S/)); |
+ var inWS = range.head.line == start.line && range.head.ch <= firstNonWS && range.head.ch; |
+ return Pos(start.line, inWS ? 0 : firstNonWS); |
+ } |
+ return start; |
+ }, sel_move); |
}, |
goLineEnd: function(cm) { |
- cm.extendSelection(lineEnd(cm, cm.getCursor().line)); |
+ cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); }, sel_move); |
}, |
goLineRight: function(cm) { |
- var top = cm.charCoords(cm.getCursor(), "div").top + 5; |
- cm.extendSelection(cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")); |
+ cm.extendSelectionsBy(function(range) { |
+ var top = cm.charCoords(range.head, "div").top + 5; |
+ return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); |
+ }, sel_move); |
}, |
goLineLeft: function(cm) { |
- var top = cm.charCoords(cm.getCursor(), "div").top + 5; |
- cm.extendSelection(cm.coordsChar({left: 0, top: top}, "div")); |
+ cm.extendSelectionsBy(function(range) { |
+ var top = cm.charCoords(range.head, "div").top + 5; |
+ return cm.coordsChar({left: 0, top: top}, "div"); |
+ }, sel_move); |
}, |
goLineUp: function(cm) {cm.moveV(-1, "line");}, |
goLineDown: function(cm) {cm.moveV(1, "line");}, |
@@ -3600,24 +4509,32 @@ window.CodeMirror = (function() { |
indentAuto: function(cm) {cm.indentSelection("smart");}, |
indentMore: function(cm) {cm.indentSelection("add");}, |
indentLess: function(cm) {cm.indentSelection("subtract");}, |
- insertTab: function(cm) { |
- cm.replaceSelection("\t", "end", "+input"); |
- }, |
+ insertTab: function(cm) {cm.replaceSelection("\t");}, |
defaultTab: function(cm) { |
if (cm.somethingSelected()) cm.indentSelection("add"); |
- else cm.replaceSelection("\t", "end", "+input"); |
+ else cm.execCommand("insertTab"); |
}, |
transposeChars: function(cm) { |
- var cur = cm.getCursor(), line = cm.getLine(cur.line); |
- if (cur.ch > 0 && cur.ch < line.length - 1) |
- cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1), |
- Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1)); |
+ runInOp(cm, function() { |
+ var ranges = cm.listSelections(); |
+ for (var i = 0; i < ranges.length; i++) { |
+ var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; |
+ if (cur.ch > 0 && cur.ch < line.length - 1) |
+ cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1), |
+ Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1)); |
+ } |
+ }); |
}, |
newlineAndIndent: function(cm) { |
- operation(cm, function() { |
- cm.replaceSelection("\n", "end", "+input"); |
- cm.indentLine(cm.getCursor().line, null, true); |
- })(); |
+ runInOp(cm, function() { |
+ var len = cm.listSelections().length; |
+ for (var i = 0; i < len; i++) { |
+ var range = cm.listSelections()[i]; |
+ cm.replaceRange("\n", range.anchor, range.head, "+input"); |
+ cm.indentLine(range.from().line + 1, null, true); |
+ ensureCursorVisible(cm); |
+ } |
+ }); |
}, |
toggleOverwrite: function(cm) {cm.toggleOverwrite();} |
}; |
@@ -3630,17 +4547,20 @@ window.CodeMirror = (function() { |
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", |
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", |
"Tab": "defaultTab", "Shift-Tab": "indentAuto", |
- "Enter": "newlineAndIndent", "Insert": "toggleOverwrite" |
+ "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", |
+ "Esc": "singleSelection" |
}; |
// Note that the save and find-related commands aren't defined by |
- // default. Unknown commands are simply ignored. |
+ // default. User code or addons can define them. Unknown commands |
+ // are simply ignored. |
keyMap.pcDefault = { |
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", |
- "Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd", |
+ "Ctrl-Home": "goDocStart", "Ctrl-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd", |
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", |
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", |
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", |
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore", |
+ "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", |
fallthrough: "basic" |
}; |
keyMap.macDefault = { |
@@ -3650,15 +4570,17 @@ window.CodeMirror = (function() { |
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", |
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", |
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delLineLeft", |
+ "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", |
fallthrough: ["basic", "emacsy"] |
}; |
- keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; |
+ // Very basic readline/emacs-style bindings, which are standard on Mac. |
keyMap.emacsy = { |
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", |
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", |
"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", |
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars" |
}; |
+ keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; |
// KEYMAP DISPATCH |
@@ -3667,7 +4589,11 @@ window.CodeMirror = (function() { |
else return val; |
} |
- function lookupKey(name, maps, handle) { |
+ // Given an array of keymaps and a key name, call handle on any |
+ // bindings found, until that returns a truthy value, at which point |
+ // we consider the key handled. Implements things like binding a key |
+ // to false stopping further handling and keymap fallthrough. |
+ var lookupKey = CodeMirror.lookupKey = function(name, maps, handle) { |
function lookup(map) { |
map = getKeyMap(map); |
var found = map[name]; |
@@ -3679,7 +4605,7 @@ window.CodeMirror = (function() { |
if (fallthrough == null) return false; |
if (Object.prototype.toString.call(fallthrough) != "[object Array]") |
return lookup(fallthrough); |
- for (var i = 0, e = fallthrough.length; i < e; ++i) { |
+ for (var i = 0; i < fallthrough.length; ++i) { |
var done = lookup(fallthrough[i]); |
if (done) return done; |
} |
@@ -3690,13 +4616,18 @@ window.CodeMirror = (function() { |
var done = lookup(maps[i]); |
if (done) return done != "stop"; |
} |
- } |
- function isModifierKey(event) { |
+ }; |
+ |
+ // Modifier key presses don't count as 'real' key presses for the |
+ // purpose of keymap fallthrough. |
+ var isModifierKey = CodeMirror.isModifierKey = function(event) { |
var name = keyNames[event.keyCode]; |
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; |
- } |
- function keyName(event, noShift) { |
- if (opera && event.keyCode == 34 && event["char"]) return false; |
+ }; |
+ |
+ // Look up the name of a key as indicated by an event object. |
+ var keyName = CodeMirror.keyName = function(event, noShift) { |
+ if (presto && event.keyCode == 34 && event["char"]) return false; |
var name = keyNames[event.keyCode]; |
if (name == null || event.altGraphKey) return false; |
if (event.altKey) name = "Alt-" + name; |
@@ -3704,10 +4635,7 @@ window.CodeMirror = (function() { |
if (flipCtrlCmd ? event.ctrlKey : event.metaKey) name = "Cmd-" + name; |
if (!noShift && event.shiftKey) name = "Shift-" + name; |
return name; |
- } |
- CodeMirror.lookupKey = lookupKey; |
- CodeMirror.isModifierKey = isModifierKey; |
- CodeMirror.keyName = keyName; |
+ }; |
// FROMTEXTAREA |
@@ -3721,9 +4649,7 @@ window.CodeMirror = (function() { |
// Set autofocus to true if this textarea is focused, or if it has |
// autofocus and no other element is focused. |
if (options.autofocus == null) { |
- var hasFocus = document.body; |
- // doc.activeElement occasionally throws on IE |
- try { hasFocus = document.activeElement; } catch(e) {} |
+ var hasFocus = activeElt(); |
options.autofocus = hasFocus == textarea || |
textarea.getAttribute("autofocus") != null && hasFocus == document.body; |
} |
@@ -3769,14 +4695,13 @@ window.CodeMirror = (function() { |
// Fed to the mode parsers, provides helper functions to make |
// parsers more succinct. |
- // The character stream used by a mode's parser. |
- function StringStream(string, tabSize) { |
+ var StringStream = CodeMirror.StringStream = function(string, tabSize) { |
this.pos = this.start = 0; |
this.string = string; |
this.tabSize = tabSize || 8; |
this.lastColumnPos = this.lastColumnValue = 0; |
this.lineStart = 0; |
- } |
+ }; |
StringStream.prototype = { |
eol: function() {return this.pos >= this.string.length;}, |
@@ -3841,18 +4766,27 @@ window.CodeMirror = (function() { |
finally { this.lineStart -= n; } |
} |
}; |
- CodeMirror.StringStream = StringStream; |
// TEXTMARKERS |
- function TextMarker(doc, type) { |
+ // Created with markText and setBookmark methods. A TextMarker is a |
+ // handle that can be used to clear or find a marked position in the |
+ // document. Line objects hold arrays (markedSpans) containing |
+ // {from, to, marker} object pointing to such marker objects, and |
+ // indicating that such a marker is present on that line. Multiple |
+ // lines may point to the same marker when it spans across lines. |
+ // The spans will have null for their from/to properties when the |
+ // marker continues beyond the start/end of the line. Markers have |
+ // links back to the lines they currently touch. |
+ |
+ var TextMarker = CodeMirror.TextMarker = function(doc, type) { |
this.lines = []; |
this.type = type; |
this.doc = doc; |
- } |
- CodeMirror.TextMarker = TextMarker; |
+ }; |
eventMixin(TextMarker); |
+ // Clear the marker. |
TextMarker.prototype.clear = function() { |
if (this.explicitlyCleared) return; |
var cm = this.doc.cm, withOp = cm && !cm.curOp; |
@@ -3865,15 +4799,17 @@ window.CodeMirror = (function() { |
for (var i = 0; i < this.lines.length; ++i) { |
var line = this.lines[i]; |
var span = getMarkedSpanFor(line.markedSpans, this); |
- if (span.to != null) max = lineNo(line); |
+ if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text"); |
+ else if (cm) { |
+ if (span.to != null) max = lineNo(line); |
+ if (span.from != null) min = lineNo(line); |
+ } |
line.markedSpans = removeMarkedSpan(line.markedSpans, span); |
- if (span.from != null) |
- min = lineNo(line); |
- else if (this.collapsed && !lineIsHidden(this.doc, line) && cm) |
+ if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) |
updateLineHeight(line, textHeight(cm.display)); |
} |
if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) { |
- var visual = visualLine(cm.doc, this.lines[i]), len = lineLength(cm.doc, visual); |
+ var visual = visualLine(this.lines[i]), len = lineLength(visual); |
if (len > cm.display.maxLineLength) { |
cm.display.maxLine = visual; |
cm.display.maxLineLength = len; |
@@ -3881,46 +4817,61 @@ window.CodeMirror = (function() { |
} |
} |
- if (min != null && cm) regChange(cm, min, max + 1); |
+ if (min != null && cm && this.collapsed) regChange(cm, min, max + 1); |
this.lines.length = 0; |
this.explicitlyCleared = true; |
if (this.atomic && this.doc.cantEdit) { |
this.doc.cantEdit = false; |
- if (cm) reCheckSelection(cm); |
+ if (cm) reCheckSelection(cm.doc); |
} |
+ if (cm) signalLater(cm, "markerCleared", cm, this); |
if (withOp) endOperation(cm); |
}; |
- TextMarker.prototype.find = function(bothSides) { |
+ // Find the position of the marker in the document. Returns a {from, |
+ // to} object by default. Side can be passed to get a specific side |
+ // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the |
+ // Pos objects returned contain a line object, rather than a line |
+ // number (used to prevent looking up the same line twice). |
+ TextMarker.prototype.find = function(side, lineObj) { |
+ if (side == null && this.type == "bookmark") side = 1; |
var from, to; |
for (var i = 0; i < this.lines.length; ++i) { |
var line = this.lines[i]; |
var span = getMarkedSpanFor(line.markedSpans, this); |
- if (span.from != null || span.to != null) { |
- var found = lineNo(line); |
- if (span.from != null) from = Pos(found, span.from); |
- if (span.to != null) to = Pos(found, span.to); |
+ if (span.from != null) { |
+ from = Pos(lineObj ? line : lineNo(line), span.from); |
+ if (side == -1) return from; |
+ } |
+ if (span.to != null) { |
+ to = Pos(lineObj ? line : lineNo(line), span.to); |
+ if (side == 1) return to; |
} |
} |
- if (this.type == "bookmark" && !bothSides) return from; |
return from && {from: from, to: to}; |
}; |
+ // Signals that the marker's widget changed, and surrounding layout |
+ // should be recomputed. |
TextMarker.prototype.changed = function() { |
- var pos = this.find(), cm = this.doc.cm; |
+ var pos = this.find(-1, true), widget = this, cm = this.doc.cm; |
if (!pos || !cm) return; |
- if (this.type != "bookmark") pos = pos.from; |
- var line = getLine(this.doc, pos.line); |
- clearCachedMeasurement(cm, line); |
- if (pos.line >= cm.display.showingFrom && pos.line < cm.display.showingTo) { |
- for (var node = cm.display.lineDiv.firstChild; node; node = node.nextSibling) if (node.lineObj == line) { |
- if (node.offsetHeight != line.height) updateLineHeight(line, node.offsetHeight); |
- break; |
+ runInOp(cm, function() { |
+ var line = pos.line, lineN = lineNo(pos.line); |
+ var view = findViewForLine(cm, lineN); |
+ if (view) { |
+ clearLineMeasurementCacheFor(view); |
+ cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; |
} |
- runInOp(cm, function() { |
- cm.curOp.selectionChanged = cm.curOp.forceUpdate = cm.curOp.updateMaxLine = true; |
- }); |
- } |
+ cm.curOp.updateMaxLine = true; |
+ if (!lineIsHidden(widget.doc, line) && widget.height != null) { |
+ var oldHeight = widget.height; |
+ widget.height = null; |
+ var dHeight = widgetHeight(widget) - oldHeight; |
+ if (dHeight) |
+ updateLineHeight(line, line.height + dHeight); |
+ } |
+ }); |
}; |
TextMarker.prototype.attachLine = function(line) { |
@@ -3939,20 +4890,31 @@ window.CodeMirror = (function() { |
} |
}; |
+ // Collapsed markers have unique ids, in order to be able to order |
+ // them, which is needed for uniquely determining an outer marker |
+ // when they overlap (they may nest, but not partially overlap). |
var nextMarkerId = 0; |
+ // Create a marker, wire it up to the right lines, and |
function markText(doc, from, to, options, type) { |
+ // Shared markers (across linked documents) are handled separately |
+ // (markTextShared will call out to this again, once per |
+ // document). |
if (options && options.shared) return markTextShared(doc, from, to, options, type); |
+ // Ensure we are in an operation. |
if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type); |
- var marker = new TextMarker(doc, type); |
+ var marker = new TextMarker(doc, type), diff = cmp(from, to); |
if (options) copyObj(options, marker); |
- if (posLess(to, from) || posEq(from, to) && marker.clearWhenEmpty !== false) |
+ // Don't connect empty markers unless clearWhenEmpty is false |
+ if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) |
return marker; |
if (marker.replacedWith) { |
+ // Showing up as a widget implies collapsed (widget replaces text) |
marker.collapsed = true; |
- marker.replacedWith = elt("span", [marker.replacedWith], "CodeMirror-widget"); |
- if (!options.handleMouseEvents) marker.replacedWith.ignoreEvents = true; |
+ marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget"); |
+ if (!options.handleMouseEvents) marker.widgetNode.ignoreEvents = true; |
+ if (options.insertLeft) marker.widgetNode.insertLeft = true; |
} |
if (marker.collapsed) { |
if (conflictingCollapsedRange(doc, from.line, from, to, marker) || |
@@ -3962,20 +4924,19 @@ window.CodeMirror = (function() { |
} |
if (marker.addToHistory) |
- addToHistory(doc, {from: from, to: to, origin: "markText"}, |
- {head: doc.sel.head, anchor: doc.sel.anchor}, NaN); |
+ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); |
var curLine = from.line, cm = doc.cm, updateMaxLine; |
doc.iter(curLine, to.line + 1, function(line) { |
- if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(doc, line) == cm.display.maxLine) |
+ if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) |
updateMaxLine = true; |
- var span = {from: null, to: null, marker: marker}; |
- if (curLine == from.line) span.from = from.ch; |
- if (curLine == to.line) span.to = to.ch; |
if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0); |
- addMarkedSpan(line, span); |
+ addMarkedSpan(line, new MarkedSpan(marker, |
+ curLine == from.line ? from.ch : null, |
+ curLine == to.line ? to.ch : null)); |
++curLine; |
}); |
+ // lineIsHidden depends on the presence of the spans, so needs a second pass |
if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) { |
if (lineIsHidden(doc, line)) updateLineHeight(line, 0); |
}); |
@@ -3992,25 +4953,31 @@ window.CodeMirror = (function() { |
marker.atomic = true; |
} |
if (cm) { |
+ // Sync editor state |
if (updateMaxLine) cm.curOp.updateMaxLine = true; |
- if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.collapsed) |
+ if (marker.collapsed) |
regChange(cm, from.line, to.line + 1); |
- if (marker.atomic) reCheckSelection(cm); |
+ else if (marker.className || marker.title || marker.startStyle || marker.endStyle) |
+ for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text"); |
+ if (marker.atomic) reCheckSelection(cm.doc); |
+ signalLater(cm, "markerAdded", cm, marker); |
} |
return marker; |
} |
// SHARED TEXTMARKERS |
- function SharedTextMarker(markers, primary) { |
+ // A shared marker spans multiple linked documents. It is |
+ // implemented as a meta-marker-object controlling multiple normal |
+ // markers. |
+ var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) { |
this.markers = markers; |
this.primary = primary; |
for (var i = 0, me = this; i < markers.length; ++i) { |
markers[i].parent = this; |
on(markers[i], "clear", function(){me.clear();}); |
} |
- } |
- CodeMirror.SharedTextMarker = SharedTextMarker; |
+ }; |
eventMixin(SharedTextMarker); |
SharedTextMarker.prototype.clear = function() { |
@@ -4020,17 +4987,17 @@ window.CodeMirror = (function() { |
this.markers[i].clear(); |
signalLater(this, "clear"); |
}; |
- SharedTextMarker.prototype.find = function() { |
- return this.primary.find(); |
+ SharedTextMarker.prototype.find = function(side, lineObj) { |
+ return this.primary.find(side, lineObj); |
}; |
function markTextShared(doc, from, to, options, type) { |
options = copyObj(options); |
options.shared = false; |
var markers = [markText(doc, from, to, options, type)], primary = markers[0]; |
- var widget = options.replacedWith; |
+ var widget = options.widgetNode; |
linkedDocs(doc, function(doc) { |
- if (widget) options.replacedWith = widget.cloneNode(true); |
+ if (widget) options.widgetNode = widget.cloneNode(true); |
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); |
for (var i = 0; i < doc.linked.length; ++i) |
if (doc.linked[i].isParent) return; |
@@ -4041,56 +5008,71 @@ window.CodeMirror = (function() { |
// TEXTMARKER SPANS |
+ function MarkedSpan(marker, from, to) { |
+ this.marker = marker; |
+ this.from = from; this.to = to; |
+ } |
+ |
+ // Search an array of spans for a span matching the given marker. |
function getMarkedSpanFor(spans, marker) { |
if (spans) for (var i = 0; i < spans.length; ++i) { |
var span = spans[i]; |
if (span.marker == marker) return span; |
} |
} |
+ // Remove a span from an array, returning undefined if no spans are |
+ // left (we don't store arrays for lines without spans). |
function removeMarkedSpan(spans, span) { |
for (var r, i = 0; i < spans.length; ++i) |
if (spans[i] != span) (r || (r = [])).push(spans[i]); |
return r; |
} |
+ // Add a span to a line. |
function addMarkedSpan(line, span) { |
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; |
span.marker.attachLine(line); |
} |
+ // Used for the algorithm that adjusts markers for a change in the |
+ // document. These functions cut an array of spans at a given |
+ // character position, returning an array of remaining chunks (or |
+ // undefined if nothing remains). |
function markedSpansBefore(old, startCh, isInsert) { |
if (old) for (var i = 0, nw; i < old.length; ++i) { |
var span = old[i], marker = span.marker; |
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); |
if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { |
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh); |
- (nw || (nw = [])).push({from: span.from, |
- to: endsAfter ? null : span.to, |
- marker: marker}); |
+ (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); |
} |
} |
return nw; |
} |
- |
function markedSpansAfter(old, endCh, isInsert) { |
if (old) for (var i = 0, nw; i < old.length; ++i) { |
var span = old[i], marker = span.marker; |
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); |
if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { |
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh); |
- (nw || (nw = [])).push({from: startsBefore ? null : span.from - endCh, |
- to: span.to == null ? null : span.to - endCh, |
- marker: marker}); |
+ (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, |
+ span.to == null ? null : span.to - endCh)); |
} |
} |
return nw; |
} |
+ // Given a change object, compute the new set of marker spans that |
+ // cover the line in which the change took place. Removes spans |
+ // entirely within the change, reconnects spans belonging to the |
+ // same marker that appear on both sides of the change, and cuts off |
+ // spans partially within the change. Returns an array of span |
+ // arrays with one element for each line in (after) the change. |
function stretchSpansOverChange(doc, change) { |
var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; |
var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; |
if (!oldFirst && !oldLast) return null; |
- var startCh = change.from.ch, endCh = change.to.ch, isInsert = posEq(change.from, change.to); |
+ var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; |
// Get the spans that 'stick out' on both sides |
var first = markedSpansBefore(oldFirst, startCh, isInsert); |
var last = markedSpansAfter(oldLast, endCh, isInsert); |
@@ -4136,7 +5118,7 @@ window.CodeMirror = (function() { |
if (gap > 0 && first) |
for (var i = 0; i < first.length; ++i) |
if (first[i].to == null) |
- (gapMarkers || (gapMarkers = [])).push({from: null, to: null, marker: first[i].marker}); |
+ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null)); |
for (var i = 0; i < gap; ++i) |
newMarkers.push(gapMarkers); |
newMarkers.push(last); |
@@ -4144,6 +5126,8 @@ window.CodeMirror = (function() { |
return newMarkers; |
} |
+ // Remove spans that are empty and don't have a clearWhenEmpty |
+ // option of false. |
function clearEmptySpans(spans) { |
for (var i = 0; i < spans.length; ++i) { |
var span = spans[i]; |
@@ -4154,6 +5138,10 @@ window.CodeMirror = (function() { |
return spans; |
} |
+ // Used for un/re-doing changes from the history. Combines the |
+ // result of computing the existing spans with the set of spans that |
+ // existed in the history (so that deleting around a span and then |
+ // undoing brings back the span). |
function mergeOldSpans(doc, change) { |
var old = getOldSpans(doc, change); |
var stretched = stretchSpansOverChange(doc, change); |
@@ -4176,6 +5164,7 @@ window.CodeMirror = (function() { |
return old; |
} |
+ // Used to 'clip' out readOnly ranges when making a change. |
function removeReadOnlyRanges(doc, from, to) { |
var markers = null; |
doc.iter(from.line, to.line + 1, function(line) { |
@@ -4188,14 +5177,14 @@ window.CodeMirror = (function() { |
if (!markers) return null; |
var parts = [{from: from, to: to}]; |
for (var i = 0; i < markers.length; ++i) { |
- var mk = markers[i], m = mk.find(); |
+ var mk = markers[i], m = mk.find(0); |
for (var j = 0; j < parts.length; ++j) { |
var p = parts[j]; |
- if (posLess(p.to, m.from) || posLess(m.to, p.from)) continue; |
- var newParts = [j, 1]; |
- if (posLess(p.from, m.from) || !mk.inclusiveLeft && posEq(p.from, m.from)) |
+ if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue; |
+ var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); |
+ if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) |
newParts.push({from: p.from, to: m.from}); |
- if (posLess(m.to, p.to) || !mk.inclusiveRight && posEq(p.to, m.to)) |
+ if (dto > 0 || !mk.inclusiveRight && !dto) |
newParts.push({from: m.to, to: p.to}); |
parts.splice.apply(parts, newParts); |
j += newParts.length - 1; |
@@ -4204,9 +5193,29 @@ window.CodeMirror = (function() { |
return parts; |
} |
+ // Connect or disconnect spans from a line. |
+ function detachMarkedSpans(line) { |
+ var spans = line.markedSpans; |
+ if (!spans) return; |
+ for (var i = 0; i < spans.length; ++i) |
+ spans[i].marker.detachLine(line); |
+ line.markedSpans = null; |
+ } |
+ function attachMarkedSpans(line, spans) { |
+ if (!spans) return; |
+ for (var i = 0; i < spans.length; ++i) |
+ spans[i].marker.attachLine(line); |
+ line.markedSpans = spans; |
+ } |
+ |
+ // Helpers used when computing which overlapping collapsed span |
+ // counts as the larger one. |
function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; } |
function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; } |
+ // Returns a number indicating which of two overlapping collapsed |
+ // spans is larger (and thus includes the other). Falls back to |
+ // comparing ids when the spans cover exactly the same range. |
function compareCollapsedMarkers(a, b) { |
var lenDiff = a.lines.length - b.lines.length; |
if (lenDiff != 0) return lenDiff; |
@@ -4218,6 +5227,8 @@ window.CodeMirror = (function() { |
return b.id - a.id; |
} |
+ // Find out whether a line ends or starts in a collapsed span. If |
+ // so, return the marker for that span. |
function collapsedSpanAtSide(line, start) { |
var sps = sawCollapsedSpans && line.markedSpans, found; |
if (sps) for (var sp, i = 0; i < sps.length; ++i) { |
@@ -4231,13 +5242,16 @@ window.CodeMirror = (function() { |
function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); } |
function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); } |
+ // Test whether there exists a collapsed span that partially |
+ // overlaps (covers the start or end, but not both) of a new span. |
+ // Such overlap is not allowed. |
function conflictingCollapsedRange(doc, lineNo, from, to, marker) { |
var line = getLine(doc, lineNo); |
var sps = sawCollapsedSpans && line.markedSpans; |
if (sps) for (var i = 0; i < sps.length; ++i) { |
var sp = sps[i]; |
if (!sp.marker.collapsed) continue; |
- var found = sp.marker.find(true); |
+ var found = sp.marker.find(0); |
var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); |
var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); |
if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue; |
@@ -4247,57 +5261,80 @@ window.CodeMirror = (function() { |
} |
} |
- function visualLine(doc, line) { |
+ // A visual line is a line as drawn on the screen. Folding, for |
+ // example, can cause multiple logical lines to appear on the same |
+ // visual line. This finds the start of the visual line that the |
+ // given line is part of (usually that is the line itself). |
+ function visualLine(line) { |
var merged; |
while (merged = collapsedSpanAtStart(line)) |
- line = getLine(doc, merged.find().from.line); |
+ line = merged.find(-1, true).line; |
return line; |
} |
+ // Returns an array of logical lines that continue the visual line |
+ // started by the argument, or undefined if there are no such lines. |
+ function visualLineContinued(line) { |
+ var merged, lines; |
+ while (merged = collapsedSpanAtEnd(line)) { |
+ line = merged.find(1, true).line; |
+ (lines || (lines = [])).push(line); |
+ } |
+ return lines; |
+ } |
+ |
+ // Get the line number of the start of the visual line that the |
+ // given line number is part of. |
+ function visualLineNo(doc, lineN) { |
+ var line = getLine(doc, lineN), vis = visualLine(line); |
+ if (line == vis) return lineN; |
+ return lineNo(vis); |
+ } |
+ // Get the line number of the start of the next visual line after |
+ // the given line. |
+ function visualLineEndNo(doc, lineN) { |
+ if (lineN > doc.lastLine()) return lineN; |
+ var line = getLine(doc, lineN), merged; |
+ if (!lineIsHidden(doc, line)) return lineN; |
+ while (merged = collapsedSpanAtEnd(line)) |
+ line = merged.find(1, true).line; |
+ return lineNo(line) + 1; |
+ } |
+ |
+ // Compute whether a line is hidden. Lines count as hidden when they |
+ // are part of a visual line that starts with another line, or when |
+ // they are entirely covered by collapsed, non-widget span. |
function lineIsHidden(doc, line) { |
var sps = sawCollapsedSpans && line.markedSpans; |
if (sps) for (var sp, i = 0; i < sps.length; ++i) { |
sp = sps[i]; |
if (!sp.marker.collapsed) continue; |
if (sp.from == null) return true; |
- if (sp.marker.replacedWith) continue; |
+ if (sp.marker.widgetNode) continue; |
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) |
return true; |
} |
} |
function lineIsHiddenInner(doc, line, span) { |
if (span.to == null) { |
- var end = span.marker.find().to, endLine = getLine(doc, end.line); |
- return lineIsHiddenInner(doc, endLine, getMarkedSpanFor(endLine.markedSpans, span.marker)); |
+ var end = span.marker.find(1, true); |
+ return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)); |
} |
if (span.marker.inclusiveRight && span.to == line.text.length) |
return true; |
for (var sp, i = 0; i < line.markedSpans.length; ++i) { |
sp = line.markedSpans[i]; |
- if (sp.marker.collapsed && !sp.marker.replacedWith && sp.from == span.to && |
+ if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && |
(sp.to == null || sp.to != span.from) && |
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) && |
lineIsHiddenInner(doc, line, sp)) return true; |
} |
} |
- function detachMarkedSpans(line) { |
- var spans = line.markedSpans; |
- if (!spans) return; |
- for (var i = 0; i < spans.length; ++i) |
- spans[i].marker.detachLine(line); |
- line.markedSpans = null; |
- } |
- |
- function attachMarkedSpans(line, spans) { |
- if (!spans) return; |
- for (var i = 0; i < spans.length; ++i) |
- spans[i].marker.attachLine(line); |
- line.markedSpans = spans; |
- } |
- |
// LINE WIDGETS |
+ // Line widgets are block elements displayed above or below a line. |
+ |
var LineWidget = CodeMirror.LineWidget = function(cm, node, options) { |
if (options) for (var opt in options) if (options.hasOwnProperty(opt)) |
this[opt] = options[opt]; |
@@ -4305,38 +5342,39 @@ window.CodeMirror = (function() { |
this.node = node; |
}; |
eventMixin(LineWidget); |
- function widgetOperation(f) { |
- return function() { |
- var withOp = !this.cm.curOp; |
- if (withOp) startOperation(this.cm); |
- try {var result = f.apply(this, arguments);} |
- finally {if (withOp) endOperation(this.cm);} |
- return result; |
- }; |
+ |
+ function adjustScrollWhenAboveVisible(cm, line, diff) { |
+ if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) |
+ addToScrollPos(cm, null, diff); |
} |
- LineWidget.prototype.clear = widgetOperation(function() { |
- var ws = this.line.widgets, no = lineNo(this.line); |
+ |
+ LineWidget.prototype.clear = function() { |
+ var cm = this.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); |
if (no == null || !ws) return; |
for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1); |
- if (!ws.length) this.line.widgets = null; |
- var aboveVisible = heightAtLine(this.cm, this.line) < this.cm.doc.scrollTop; |
- updateLineHeight(this.line, Math.max(0, this.line.height - widgetHeight(this))); |
- if (aboveVisible) addToScrollPos(this.cm, 0, -this.height); |
- regChange(this.cm, no, no + 1); |
- }); |
- LineWidget.prototype.changed = widgetOperation(function() { |
- var oldH = this.height; |
+ if (!ws.length) line.widgets = null; |
+ var height = widgetHeight(this); |
+ runInOp(cm, function() { |
+ adjustScrollWhenAboveVisible(cm, line, -height); |
+ regLineChange(cm, no, "widget"); |
+ updateLineHeight(line, Math.max(0, line.height - height)); |
+ }); |
+ }; |
+ LineWidget.prototype.changed = function() { |
+ var oldH = this.height, cm = this.cm, line = this.line; |
this.height = null; |
var diff = widgetHeight(this) - oldH; |
if (!diff) return; |
- updateLineHeight(this.line, this.line.height + diff); |
- var no = lineNo(this.line); |
- regChange(this.cm, no, no + 1); |
- }); |
+ runInOp(cm, function() { |
+ cm.curOp.forceUpdate = true; |
+ adjustScrollWhenAboveVisible(cm, line, diff); |
+ updateLineHeight(line, line.height + diff); |
+ }); |
+ }; |
function widgetHeight(widget) { |
if (widget.height != null) return widget.height; |
- if (!widget.node.parentNode || widget.node.parentNode.nodeType != 1) |
+ if (!contains(document.body, widget.node)) |
removeChildrenAndAdd(widget.cm.display.measure, elt("div", [widget.node], null, "position: relative")); |
return widget.height = widget.node.offsetHeight; |
} |
@@ -4344,15 +5382,16 @@ window.CodeMirror = (function() { |
function addLineWidget(cm, handle, node, options) { |
var widget = new LineWidget(cm, node, options); |
if (widget.noHScroll) cm.display.alignWidgets = true; |
- changeLine(cm, handle, function(line) { |
+ changeLine(cm, handle, "widget", function(line) { |
var widgets = line.widgets || (line.widgets = []); |
if (widget.insertAt == null) widgets.push(widget); |
else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); |
widget.line = line; |
- if (!lineIsHidden(cm.doc, line) || widget.showIfHidden) { |
- var aboveVisible = heightAtLine(cm, line) < cm.doc.scrollTop; |
+ if (!lineIsHidden(cm.doc, line)) { |
+ var aboveVisible = heightAtLine(line) < cm.doc.scrollTop; |
updateLineHeight(line, line.height + widgetHeight(widget)); |
- if (aboveVisible) addToScrollPos(cm, 0, widget.height); |
+ if (aboveVisible) addToScrollPos(cm, null, widget.height); |
+ cm.curOp.forceUpdate = true; |
} |
return true; |
}); |
@@ -4371,6 +5410,9 @@ window.CodeMirror = (function() { |
eventMixin(Line); |
Line.prototype.lineNo = function() { return lineNo(this); }; |
+ // Change the content (text, markers) of a line. Automatically |
+ // invalidates cached information and tries to re-estimate the |
+ // line's height. |
function updateLine(line, text, markedSpans, estimateHeight) { |
line.text = text; |
if (line.stateAfter) line.stateAfter = null; |
@@ -4382,14 +5424,13 @@ window.CodeMirror = (function() { |
if (estHeight != line.height) updateLineHeight(line, estHeight); |
} |
+ // Detach a line from the document tree and its markers. |
function cleanUpLine(line) { |
line.parent = null; |
detachMarkedSpans(line); |
} |
- // Run the given mode's parser over a line, update the styles |
- // array, which contains alternating fragments of text and CSS |
- // classes. |
+ // Run the given mode's parser over a line, calling f for each token. |
function runMode(cm, text, mode, state, f, forceToEnd) { |
var flattenSpans = mode.flattenSpans; |
if (flattenSpans == null) flattenSpans = cm.options.flattenSpans; |
@@ -4423,6 +5464,10 @@ window.CodeMirror = (function() { |
} |
} |
+ // Compute a style array (an array starting with a mode generation |
+ // -- for invalidation -- followed by pairs of end positions and |
+ // style strings), which is used to highlight the tokens on the |
+ // line. |
function highlightLine(cm, line, state, forceToEnd) { |
// A styles array always starts with a number identifying the |
// mode/overlays that it is based on (for easy invalidation). |
@@ -4468,7 +5513,8 @@ window.CodeMirror = (function() { |
} |
// Lightweight form of highlight -- proceed over this line and |
- // update state, but don't save a style array. |
+ // update state, but don't save a style array. Used for lines that |
+ // aren't currently visible. |
function processLine(cm, text, state, startAt) { |
var mode = cm.doc.mode; |
var stream = new StringStream(text, cm.options.tabSize); |
@@ -4480,6 +5526,9 @@ window.CodeMirror = (function() { |
} |
} |
+ // Convert a style as returned by a mode (either null, or a string |
+ // containing one or more styles) to a CSS style. This is cached, |
+ // and also looks for line-wide styles. |
var styleToClassCache = {}, styleToClassCacheWithMode = {}; |
function interpretTokenStyle(style, builder) { |
if (!style) return null; |
@@ -4499,54 +5548,48 @@ window.CodeMirror = (function() { |
(cache[style] = style.replace(/\S+/g, "cm-$&")); |
} |
- function buildLineContent(cm, realLine, measure, copyWidgets) { |
- var merged, line = realLine, empty = true; |
- while (merged = collapsedSpanAtStart(line)) |
- line = getLine(cm.doc, merged.find().from.line); |
- |
- var builder = {pre: elt("pre"), col: 0, pos: 0, |
- measure: null, measuredSomething: false, cm: cm, |
- copyWidgets: copyWidgets}; |
- |
- do { |
- if (line.text) empty = false; |
- builder.measure = line == realLine && measure; |
+ // Render the DOM representation of the text of a line. Also builds |
+ // up a 'line map', which points at the DOM nodes that represent |
+ // specific stretches of text, and is used by the measuring code. |
+ // The returned object contains the DOM node, this map, and |
+ // information about line-wide styles that were set by the mode. |
+ function buildLineContent(cm, lineView) { |
+ // The padding-right forces the element to have a 'border', which |
+ // is needed on Webkit to be able to get line-level bounding |
+ // rectangles for it (in measureChar). |
+ var content = elt("span", null, null, webkit ? "padding-right: .1px" : null); |
+ var builder = {pre: elt("pre", [content]), content: content, col: 0, pos: 0, cm: cm}; |
+ lineView.measure = {}; |
+ |
+ // Iterate over the logical lines that make up this visual line. |
+ for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { |
+ var line = i ? lineView.rest[i - 1] : lineView.line, order; |
builder.pos = 0; |
- builder.addToken = builder.measure ? buildTokenMeasure : buildToken; |
- if ((old_ie || webkit) && cm.getOption("lineWrapping")) |
+ builder.addToken = buildToken; |
+ // Optionally wire in some hacks into the token-rendering |
+ // algorithm, to deal with browser quirks. |
+ if ((ie || webkit) && cm.getOption("lineWrapping")) |
builder.addToken = buildTokenSplitSpaces(builder.addToken); |
- var next = insertLineContent(line, builder, getLineStyles(cm, line)); |
- if (measure && line == realLine && !builder.measuredSomething) { |
- measure[0] = builder.pre.appendChild(zeroWidthElement(cm.display.measure)); |
- builder.measuredSomething = true; |
- } |
- if (next) line = getLine(cm.doc, next.to.line); |
- } while (next); |
- |
- if (measure && !builder.measuredSomething && !measure[0]) |
- measure[0] = builder.pre.appendChild(empty ? elt("span", "\u00a0") : zeroWidthElement(cm.display.measure)); |
- if (!builder.pre.firstChild && !lineIsHidden(cm.doc, realLine)) |
- builder.pre.appendChild(document.createTextNode("\u00a0")); |
- |
- var order; |
- // Work around problem with the reported dimensions of single-char |
- // direction spans on IE (issue #1129). See also the comment in |
- // cursorCoords. |
- if (measure && ie && (order = getOrder(line))) { |
- var l = order.length - 1; |
- if (order[l].from == order[l].to) --l; |
- var last = order[l], prev = order[l - 1]; |
- if (last.from + 1 == last.to && prev && last.level < prev.level) { |
- var span = measure[builder.pos - 1]; |
- if (span) span.parentNode.insertBefore(span.measureRight = zeroWidthElement(cm.display.measure), |
- span.nextSibling); |
- } |
- } |
- |
- var textClass = builder.textClass ? builder.textClass + " " + (realLine.textClass || "") : realLine.textClass; |
- if (textClass) builder.pre.className = textClass; |
- |
- signal(cm, "renderLine", cm, realLine, builder.pre); |
+ if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line))) |
+ builder.addToken = buildTokenBadBidi(builder.addToken, order); |
+ builder.map = []; |
+ insertLineContent(line, builder, getLineStyles(cm, line)); |
+ |
+ // Ensure at least a single node is present, for measuring. |
+ if (builder.map.length == 0) |
+ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); |
+ |
+ // Store the map and a cache object for the current logical line |
+ if (i == 0) { |
+ lineView.measure.map = builder.map; |
+ lineView.measure.cache = {}; |
+ } else { |
+ (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map); |
+ (lineView.measure.caches || (lineView.measure.caches = [])).push({}); |
+ } |
+ } |
+ |
+ signal(cm, "renderLine", cm, lineView.line, builder.pre); |
return builder; |
} |
@@ -4556,12 +5599,17 @@ window.CodeMirror = (function() { |
return token; |
} |
+ // Build up the DOM representation for a single token, and add it to |
+ // the line map. Takes care to render special characters separately. |
function buildToken(builder, text, style, startStyle, endStyle, title) { |
if (!text) return; |
- var special = builder.cm.options.specialChars; |
+ var special = builder.cm.options.specialChars, mustWrap = false; |
if (!special.test(text)) { |
builder.col += text.length; |
var content = document.createTextNode(text); |
+ builder.map.push(builder.pos, builder.pos + text.length, content); |
+ if (ie_upto8) mustWrap = true; |
+ builder.pos += text.length; |
} else { |
var content = document.createDocumentFragment(), pos = 0; |
while (true) { |
@@ -4569,56 +5617,38 @@ window.CodeMirror = (function() { |
var m = special.exec(text); |
var skipped = m ? m.index - pos : text.length - pos; |
if (skipped) { |
- content.appendChild(document.createTextNode(text.slice(pos, pos + skipped))); |
+ var txt = document.createTextNode(text.slice(pos, pos + skipped)); |
+ if (ie_upto8) content.appendChild(elt("span", [txt])); |
+ else content.appendChild(txt); |
+ builder.map.push(builder.pos, builder.pos + skipped, txt); |
builder.col += skipped; |
+ builder.pos += skipped; |
} |
if (!m) break; |
pos += skipped + 1; |
if (m[0] == "\t") { |
var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; |
- content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); |
+ var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); |
builder.col += tabWidth; |
} else { |
- var token = builder.cm.options.specialCharPlaceholder(m[0]); |
- content.appendChild(token); |
+ var txt = builder.cm.options.specialCharPlaceholder(m[0]); |
+ if (ie_upto8) content.appendChild(elt("span", [txt])); |
+ else content.appendChild(txt); |
builder.col += 1; |
} |
+ builder.map.push(builder.pos, builder.pos + 1, txt); |
+ builder.pos++; |
} |
} |
- if (style || startStyle || endStyle || builder.measure) { |
+ if (style || startStyle || endStyle || mustWrap) { |
var fullStyle = style || ""; |
if (startStyle) fullStyle += startStyle; |
if (endStyle) fullStyle += endStyle; |
var token = elt("span", [content], fullStyle); |
if (title) token.title = title; |
- return builder.pre.appendChild(token); |
- } |
- builder.pre.appendChild(content); |
- } |
- |
- function buildTokenMeasure(builder, text, style, startStyle, endStyle) { |
- var wrapping = builder.cm.options.lineWrapping; |
- for (var i = 0; i < text.length; ++i) { |
- var start = i == 0, to = i + 1; |
- while (to < text.length && isExtendingChar(text.charAt(to))) ++to; |
- var ch = text.slice(i, to); |
- i = to - 1; |
- if (i && wrapping && spanAffectsWrapping(text, i)) |
- builder.pre.appendChild(elt("wbr")); |
- var old = builder.measure[builder.pos]; |
- var span = builder.measure[builder.pos] = |
- buildToken(builder, ch, style, |
- start && startStyle, i == text.length - 1 && endStyle); |
- if (old) span.leftSide = old.leftSide || old; |
- // In IE single-space nodes wrap differently than spaces |
- // embedded in larger text nodes, except when set to |
- // white-space: normal (issue #1268). |
- if (old_ie && wrapping && ch == " " && i && !/\s/.test(text.charAt(i - 1)) && |
- i < text.length - 1 && !/\s/.test(text.charAt(i + 1))) |
- span.style.whiteSpace = "normal"; |
- builder.pos += ch.length; |
- } |
- if (text.length) builder.measuredSomething = true; |
+ return builder.content.appendChild(token); |
+ } |
+ builder.content.appendChild(content); |
} |
function buildTokenSplitSpaces(inner) { |
@@ -4629,29 +5659,36 @@ window.CodeMirror = (function() { |
return out; |
} |
return function(builder, text, style, startStyle, endStyle, title) { |
- return inner(builder, text.replace(/ {3,}/g, split), style, startStyle, endStyle, title); |
+ inner(builder, text.replace(/ {3,}/g, split), style, startStyle, endStyle, title); |
}; |
} |
- function buildCollapsedSpan(builder, size, marker, ignoreWidget) { |
- var widget = !ignoreWidget && marker.replacedWith; |
- if (widget) { |
- if (builder.copyWidgets) widget = widget.cloneNode(true); |
- builder.pre.appendChild(widget); |
- if (builder.measure) { |
- if (size) { |
- builder.measure[builder.pos] = widget; |
- } else { |
- var elt = zeroWidthElement(builder.cm.display.measure); |
- if (marker.type == "bookmark" && !marker.insertLeft) |
- builder.measure[builder.pos] = builder.pre.appendChild(elt); |
- else if (builder.measure[builder.pos]) |
- return; |
- else |
- builder.measure[builder.pos] = builder.pre.insertBefore(elt, widget); |
+ // Work around nonsense dimensions being reported for stretches of |
+ // right-to-left text. |
+ function buildTokenBadBidi(inner, order) { |
+ return function(builder, text, style, startStyle, endStyle, title) { |
+ style = style ? style + " cm-force-border" : "cm-force-border"; |
+ var start = builder.pos, end = start + text.length; |
+ for (;;) { |
+ // Find the part that overlaps with the start of this text |
+ for (var i = 0; i < order.length; i++) { |
+ var part = order[i]; |
+ if (part.to > start && part.from <= start) break; |
} |
- builder.measuredSomething = true; |
+ if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title); |
+ inner(builder, text.slice(0, part.to - start), style, startStyle, null, title); |
+ startStyle = null; |
+ text = text.slice(part.to - start); |
+ start = part.to; |
} |
+ }; |
+ } |
+ |
+ function buildCollapsedSpan(builder, size, marker, ignoreWidget) { |
+ var widget = !ignoreWidget && marker.widgetNode; |
+ if (widget) { |
+ builder.map.push(builder.pos, builder.pos + size, widget); |
+ builder.content.appendChild(widget); |
} |
builder.pos += size; |
} |
@@ -4686,12 +5723,12 @@ window.CodeMirror = (function() { |
} else if (sp.from > pos && nextChange > sp.from) { |
nextChange = sp.from; |
} |
- if (m.type == "bookmark" && sp.from == pos && m.replacedWith) foundBookmarks.push(m); |
+ if (m.type == "bookmark" && sp.from == pos && m.widgetNode) foundBookmarks.push(m); |
} |
if (collapsed && (collapsed.from || 0) == pos) { |
- buildCollapsedSpan(builder, (collapsed.to == null ? len : collapsed.to) - pos, |
+ buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, |
collapsed.marker, collapsed.from == null); |
- if (collapsed.to == null) return collapsed.marker.find(); |
+ if (collapsed.to == null) return; |
} |
if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j) |
buildCollapsedSpan(builder, 0, foundBookmarks[j]); |
@@ -4719,7 +5756,16 @@ window.CodeMirror = (function() { |
// DOCUMENT DATA STRUCTURE |
- function updateDoc(doc, change, markedSpans, selAfter, estimateHeight) { |
+ // By default, updates that start and end at the beginning of a line |
+ // are treated specially, in order to make the association of line |
+ // widgets and marker elements with the text behave more intuitive. |
+ function isWholeLineUpdate(doc, change) { |
+ return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && |
+ (!doc.cm || doc.cm.options.wholeLineUpdateBefore); |
+ } |
+ |
+ // Perform a change on the document data structure. |
+ function updateDoc(doc, change, markedSpans, estimateHeight) { |
function spansFor(n) {return markedSpans ? markedSpans[n] : null;} |
function update(line, text, spans) { |
updateLine(line, text, spans, estimateHeight); |
@@ -4730,12 +5776,11 @@ window.CodeMirror = (function() { |
var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); |
var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; |
- // First adjust the line structure |
- if (from.ch == 0 && to.ch == 0 && lastText == "" && |
- (!doc.cm || doc.cm.options.wholeLineUpdateBefore)) { |
+ // Adjust the line structure |
+ if (isWholeLineUpdate(doc, change)) { |
// This is a whole-line replace. Treated specially to make |
// sure line objects move the way they are supposed to. |
- for (var i = 0, e = text.length - 1, added = []; i < e; ++i) |
+ for (var i = 0, added = []; i < text.length - 1; ++i) |
added.push(new Line(text[i], spansFor(i), estimateHeight)); |
update(lastLine, lastLine.text, lastSpans); |
if (nlines) doc.remove(from.line, nlines); |
@@ -4744,7 +5789,7 @@ window.CodeMirror = (function() { |
if (text.length == 1) { |
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); |
} else { |
- for (var added = [], i = 1, e = text.length - 1; i < e; ++i) |
+ for (var added = [], i = 1; i < text.length - 1; ++i) |
added.push(new Line(text[i], spansFor(i), estimateHeight)); |
added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); |
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); |
@@ -4756,20 +5801,32 @@ window.CodeMirror = (function() { |
} else { |
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); |
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); |
- for (var i = 1, e = text.length - 1, added = []; i < e; ++i) |
+ for (var i = 1, added = []; i < text.length - 1; ++i) |
added.push(new Line(text[i], spansFor(i), estimateHeight)); |
if (nlines > 1) doc.remove(from.line + 1, nlines - 1); |
doc.insert(from.line + 1, added); |
} |
signalLater(doc, "change", doc, change); |
- setSelection(doc, selAfter.anchor, selAfter.head, null, true); |
} |
+ // The document is represented as a BTree consisting of leaves, with |
+ // chunk of lines in them, and branches, with up to ten leaves or |
+ // other branch nodes below them. The top node is always a branch |
+ // node, and is the document object itself (meaning it has |
+ // additional methods and properties). |
+ // |
+ // All nodes have parent links. The tree is used both to go from |
+ // line numbers to line objects, and to go from objects to numbers. |
+ // It also indexes by height, and is used to convert between height |
+ // and line object, and to find the total height of the document. |
+ // |
+ // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html |
+ |
function LeafChunk(lines) { |
this.lines = lines; |
this.parent = null; |
- for (var i = 0, e = lines.length, height = 0; i < e; ++i) { |
+ for (var i = 0, height = 0; i < lines.length; ++i) { |
lines[i].parent = this; |
height += lines[i].height; |
} |
@@ -4778,6 +5835,7 @@ window.CodeMirror = (function() { |
LeafChunk.prototype = { |
chunkSize: function() { return this.lines.length; }, |
+ // Remove the n lines at offset 'at'. |
removeInner: function(at, n) { |
for (var i = at, e = at + n; i < e; ++i) { |
var line = this.lines[i]; |
@@ -4787,14 +5845,18 @@ window.CodeMirror = (function() { |
} |
this.lines.splice(at, n); |
}, |
+ // Helper used to collapse a small branch into a single leaf. |
collapse: function(lines) { |
- lines.splice.apply(lines, [lines.length, 0].concat(this.lines)); |
+ lines.push.apply(lines, this.lines); |
}, |
+ // Insert the given array of lines at offset 'at', count them as |
+ // having the given height. |
insertInner: function(at, lines, height) { |
this.height += height; |
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); |
- for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this; |
+ for (var i = 0; i < lines.length; ++i) lines[i].parent = this; |
}, |
+ // Used to iterate over a part of the tree. |
iterN: function(at, n, op) { |
for (var e = at + n; at < e; ++at) |
if (op(this.lines[at])) return true; |
@@ -4804,7 +5866,7 @@ window.CodeMirror = (function() { |
function BranchChunk(children) { |
this.children = children; |
var size = 0, height = 0; |
- for (var i = 0, e = children.length; i < e; ++i) { |
+ for (var i = 0; i < children.length; ++i) { |
var ch = children[i]; |
size += ch.chunkSize(); height += ch.height; |
ch.parent = this; |
@@ -4829,7 +5891,10 @@ window.CodeMirror = (function() { |
at = 0; |
} else at -= sz; |
} |
- if (this.size - n < 25) { |
+ // If the result is smaller than 25 lines, ensure that it is a |
+ // single leaf node. |
+ if (this.size - n < 25 && |
+ (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { |
var lines = []; |
this.collapse(lines); |
this.children = [new LeafChunk(lines)]; |
@@ -4837,12 +5902,12 @@ window.CodeMirror = (function() { |
} |
}, |
collapse: function(lines) { |
- for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines); |
+ for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines); |
}, |
insertInner: function(at, lines, height) { |
this.size += lines.length; |
this.height += height; |
- for (var i = 0, e = this.children.length; i < e; ++i) { |
+ for (var i = 0; i < this.children.length; ++i) { |
var child = this.children[i], sz = child.chunkSize(); |
if (at <= sz) { |
child.insertInner(at, lines, height); |
@@ -4861,6 +5926,7 @@ window.CodeMirror = (function() { |
at -= sz; |
} |
}, |
+ // When a node has grown, check whether it should be split. |
maybeSpill: function() { |
if (this.children.length <= 10) return; |
var me = this; |
@@ -4883,7 +5949,7 @@ window.CodeMirror = (function() { |
me.parent.maybeSpill(); |
}, |
iterN: function(at, n, op) { |
- for (var i = 0, e = this.children.length; i < e; ++i) { |
+ for (var i = 0; i < this.children.length; ++i) { |
var child = this.children[i], sz = child.chunkSize(); |
if (at < sz) { |
var used = Math.min(n, sz - at); |
@@ -4904,43 +5970,52 @@ window.CodeMirror = (function() { |
this.first = firstLine; |
this.scrollTop = this.scrollLeft = 0; |
this.cantEdit = false; |
- this.history = makeHistory(); |
this.cleanGeneration = 1; |
this.frontier = firstLine; |
var start = Pos(firstLine, 0); |
- this.sel = {from: start, to: start, head: start, anchor: start, shift: false, extend: false, goalColumn: null}; |
+ this.sel = simpleSelection(start); |
+ this.history = new History(null); |
this.id = ++nextDocId; |
this.modeOption = mode; |
if (typeof text == "string") text = splitLines(text); |
- updateDoc(this, {from: start, to: start, text: text}, null, {head: start, anchor: start}); |
+ updateDoc(this, {from: start, to: start, text: text}); |
+ setSelection(this, simpleSelection(start), sel_dontScroll); |
}; |
Doc.prototype = createObj(BranchChunk.prototype, { |
constructor: Doc, |
+ // Iterate over the document. Supports two forms -- with only one |
+ // argument, it calls that for each line in the document. With |
+ // three, it iterates over the range given by the first two (with |
+ // the second being non-inclusive). |
iter: function(from, to, op) { |
if (op) this.iterN(from - this.first, to - from, op); |
else this.iterN(this.first, this.first + this.size, from); |
}, |
+ // Non-public interface for adding and removing lines. |
insert: function(at, lines) { |
var height = 0; |
- for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height; |
+ for (var i = 0; i < lines.length; ++i) height += lines[i].height; |
this.insertInner(at - this.first, lines, height); |
}, |
remove: function(at, n) { this.removeInner(at - this.first, n); }, |
+ // From here, the methods are part of the public interface. Most |
+ // are also available from CodeMirror (editor) instances. |
+ |
getValue: function(lineSep) { |
var lines = getLines(this, this.first, this.first + this.size); |
if (lineSep === false) return lines; |
return lines.join(lineSep || "\n"); |
}, |
- setValue: function(code) { |
+ setValue: docMethodOp(function(code) { |
var top = Pos(this.first, 0), last = this.first + this.size - 1; |
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), |
- text: splitLines(code), origin: "setValue"}, |
- {head: top, anchor: top}, true); |
- }, |
+ text: splitLines(code), origin: "setValue"}, true); |
+ setSelection(this, simpleSelection(top)); |
+ }), |
replaceRange: function(code, from, to, origin) { |
from = clipPos(this, from); |
to = to ? clipPos(this, to) : from; |
@@ -4953,21 +6028,13 @@ window.CodeMirror = (function() { |
}, |
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;}, |
- setLine: function(line, text) { |
- if (isLine(this, line)) |
- replaceRange(this, text, Pos(line, 0), clipPos(this, Pos(line))); |
- }, |
- removeLine: function(line) { |
- if (line) replaceRange(this, "", clipPos(this, Pos(line - 1)), clipPos(this, Pos(line))); |
- else replaceRange(this, "", Pos(0, 0), clipPos(this, Pos(1, 0))); |
- }, |
getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);}, |
getLineNumber: function(line) {return lineNo(line);}, |
getLineHandleVisualStart: function(line) { |
if (typeof line == "number") line = getLine(this, line); |
- return visualLine(this, line); |
+ return visualLine(line); |
}, |
lineCount: function() {return this.size;}, |
@@ -4977,41 +6044,96 @@ window.CodeMirror = (function() { |
clipPos: function(pos) {return clipPos(this, pos);}, |
getCursor: function(start) { |
- var sel = this.sel, pos; |
- if (start == null || start == "head") pos = sel.head; |
- else if (start == "anchor") pos = sel.anchor; |
- else if (start == "end" || start === false) pos = sel.to; |
- else pos = sel.from; |
- return copyPos(pos); |
+ var range = this.sel.primary(), pos; |
+ if (start == null || start == "head") pos = range.head; |
+ else if (start == "anchor") pos = range.anchor; |
+ else if (start == "end" || start == "to" || start === false) pos = range.to(); |
+ else pos = range.from(); |
+ return pos; |
}, |
- somethingSelected: function() {return !posEq(this.sel.head, this.sel.anchor);}, |
+ listSelections: function() { return this.sel.ranges; }, |
+ somethingSelected: function() {return this.sel.somethingSelected();}, |
- setCursor: docOperation(function(line, ch, extend) { |
- var pos = clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line); |
- if (extend) extendSelection(this, pos); |
- else setSelection(this, pos, pos); |
+ setCursor: docMethodOp(function(line, ch, options) { |
+ setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); |
}), |
- setSelection: docOperation(function(anchor, head, bias) { |
- setSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), bias); |
+ setSelection: docMethodOp(function(anchor, head, options) { |
+ setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); |
}), |
- extendSelection: docOperation(function(from, to, bias) { |
- extendSelection(this, clipPos(this, from), to && clipPos(this, to), bias); |
+ extendSelection: docMethodOp(function(head, other, options) { |
+ extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); |
+ }), |
+ extendSelections: docMethodOp(function(heads, options) { |
+ extendSelections(this, clipPosArray(this, heads, options)); |
+ }), |
+ extendSelectionsBy: docMethodOp(function(f, options) { |
+ extendSelections(this, map(this.sel.ranges, f), options); |
+ }), |
+ setSelections: docMethodOp(function(ranges, primary, options) { |
+ if (!ranges.length) return; |
+ for (var i = 0, out = []; i < ranges.length; i++) |
+ out[i] = new Range(clipPos(this, ranges[i].anchor), |
+ clipPos(this, ranges[i].head)); |
+ if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex); |
+ setSelection(this, normalizeSelection(out, primary), options); |
+ }), |
+ addSelection: docMethodOp(function(anchor, head, options) { |
+ var ranges = this.sel.ranges.slice(0); |
+ ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); |
+ setSelection(this, normalizeSelection(ranges, ranges.length - 1), options); |
}), |
- getSelection: function(lineSep) {return this.getRange(this.sel.from, this.sel.to, lineSep);}, |
- replaceSelection: function(code, collapse, origin) { |
- makeChange(this, {from: this.sel.from, to: this.sel.to, text: splitLines(code), origin: origin}, collapse || "around"); |
+ getSelection: function(lineSep) { |
+ var ranges = this.sel.ranges, lines; |
+ for (var i = 0; i < ranges.length; i++) { |
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to()); |
+ lines = lines ? lines.concat(sel) : sel; |
+ } |
+ if (lineSep === false) return lines; |
+ else return lines.join(lineSep || "\n"); |
+ }, |
+ getSelections: function(lineSep) { |
+ var parts = [], ranges = this.sel.ranges; |
+ for (var i = 0; i < ranges.length; i++) { |
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to()); |
+ if (lineSep !== false) sel = sel.join(lineSep || "\n"); |
+ parts[i] = sel; |
+ } |
+ return parts; |
}, |
- undo: docOperation(function() {makeChangeFromHistory(this, "undo");}), |
- redo: docOperation(function() {makeChangeFromHistory(this, "redo");}), |
+ replaceSelection: docMethodOp(function(code, collapse, origin) { |
+ var dup = []; |
+ for (var i = 0; i < this.sel.ranges.length; i++) |
+ dup[i] = code; |
+ this.replaceSelections(dup, collapse, origin || "+input"); |
+ }), |
+ replaceSelections: function(code, collapse, origin) { |
+ var changes = [], sel = this.sel; |
+ for (var i = 0; i < sel.ranges.length; i++) { |
+ var range = sel.ranges[i]; |
+ changes[i] = {from: range.from(), to: range.to(), text: splitLines(code[i]), origin: origin}; |
+ } |
+ var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); |
+ for (var i = changes.length - 1; i >= 0; i--) |
+ makeChange(this, changes[i]); |
+ if (newSel) setSelectionReplaceHistory(this, newSel); |
+ else if (this.cm) ensureCursorVisible(this.cm); |
+ }, |
+ undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), |
+ redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), |
+ undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), |
+ redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), |
- setExtending: function(val) {this.sel.extend = val;}, |
+ setExtending: function(val) {this.extend = val;}, |
+ getExtending: function() {return this.extend;}, |
historySize: function() { |
- var hist = this.history; |
- return {undo: hist.done.length, redo: hist.undone.length}; |
+ var hist = this.history, done = 0, undone = 0; |
+ for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done; |
+ for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone; |
+ return {undo: done, redo: undone}; |
}, |
- clearHistory: function() {this.history = makeHistory(this.history.maxGeneration);}, |
+ clearHistory: function() {this.history = new History(this.history.maxGeneration);}, |
markClean: function() { |
this.cleanGeneration = this.changeGeneration(true); |
@@ -5030,9 +6152,9 @@ window.CodeMirror = (function() { |
undone: copyHistoryArray(this.history.undone)}; |
}, |
setHistory: function(histData) { |
- var hist = this.history = makeHistory(this.history.maxGeneration); |
- hist.done = histData.done.slice(0); |
- hist.undone = histData.undone.slice(0); |
+ var hist = this.history = new History(this.history.maxGeneration); |
+ hist.done = copyHistoryArray(histData.done.slice(0), null, true); |
+ hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); |
}, |
markText: function(from, to, options) { |
@@ -5041,7 +6163,7 @@ window.CodeMirror = (function() { |
setBookmark: function(pos, options) { |
var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), |
insertLeft: options && options.insertLeft, |
- clearWhenEmpty: false}; |
+ clearWhenEmpty: false, shared: options && options.shared}; |
pos = clipPos(this, pos); |
return markText(this, pos, pos, realOpts, "bookmark"); |
}, |
@@ -5056,6 +6178,22 @@ window.CodeMirror = (function() { |
} |
return markers; |
}, |
+ findMarks: function(from, to) { |
+ from = clipPos(this, from); to = clipPos(this, to); |
+ var found = [], lineNo = from.line; |
+ this.iter(from.line, to.line + 1, function(line) { |
+ var spans = line.markedSpans; |
+ if (spans) for (var i = 0; i < spans.length; i++) { |
+ var span = spans[i]; |
+ if (!(lineNo == from.line && from.ch > span.to || |
+ span.from == null && lineNo != from.line|| |
+ lineNo == to.line && span.from > to.ch)) |
+ found.push(span.marker.parent || span.marker); |
+ } |
+ ++lineNo; |
+ }); |
+ return found; |
+ }, |
getAllMarks: function() { |
var markers = []; |
this.iter(function(line) { |
@@ -5089,8 +6227,8 @@ window.CodeMirror = (function() { |
copy: function(copyHistory) { |
var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first); |
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; |
- doc.sel = {from: this.sel.from, to: this.sel.to, head: this.sel.head, anchor: this.sel.anchor, |
- shift: this.sel.shift, extend: false, goalColumn: this.sel.goalColumn}; |
+ doc.sel = this.sel; |
+ doc.extend = false; |
if (copyHistory) { |
doc.history.undoDepth = this.history.undoDepth; |
doc.setHistory(this.getHistory()); |
@@ -5122,7 +6260,7 @@ window.CodeMirror = (function() { |
if (other.history == this.history) { |
var splitIds = [other.id]; |
linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true); |
- other.history = makeHistory(); |
+ other.history = new History(null); |
other.history.done = copyHistoryArray(this.history.done, splitIds); |
other.history.undone = copyHistoryArray(this.history.undone, splitIds); |
} |
@@ -5133,9 +6271,10 @@ window.CodeMirror = (function() { |
getEditor: function() {return this.cm;} |
}); |
+ // Public alias. |
Doc.prototype.eachLine = Doc.prototype.iter; |
- // The Doc methods that should be available on CodeMirror instances |
+ // Set up methods on CodeMirror's prototype to redirect to the editor's document. |
var dontDelegate = "iter insert remove copy getEditor".split(" "); |
for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) |
CodeMirror.prototype[prop] = (function(method) { |
@@ -5144,6 +6283,7 @@ window.CodeMirror = (function() { |
eventMixin(Doc); |
+ // Call f for all linked documents. |
function linkedDocs(doc, f, sharedHistOnly) { |
function propagate(doc, skip, sharedHist) { |
if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) { |
@@ -5158,22 +6298,25 @@ window.CodeMirror = (function() { |
propagate(doc, null, true); |
} |
+ // Attach a document to an editor. |
function attachDoc(cm, doc) { |
if (doc.cm) throw new Error("This document is already in use."); |
cm.doc = doc; |
doc.cm = cm; |
estimateLineHeights(cm); |
loadMode(cm); |
- if (!cm.options.lineWrapping) computeMaxLength(cm); |
+ if (!cm.options.lineWrapping) findMaxLine(cm); |
cm.options.mode = doc.modeOption; |
regChange(cm); |
} |
// LINE UTILITIES |
- function getLine(chunk, n) { |
- n -= chunk.first; |
- while (!chunk.lines) { |
+ // Find the line object corresponding to the given line number. |
+ function getLine(doc, n) { |
+ n -= doc.first; |
+ if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document."); |
+ for (var chunk = doc; !chunk.lines;) { |
for (var i = 0;; ++i) { |
var child = chunk.children[i], sz = child.chunkSize(); |
if (n < sz) { chunk = child; break; } |
@@ -5183,6 +6326,8 @@ window.CodeMirror = (function() { |
return chunk.lines[n]; |
} |
+ // Get the part of a document between two positions, as an array of |
+ // strings. |
function getBetween(doc, start, end) { |
var out = [], n = start.line; |
doc.iter(start.line, end.line + 1, function(line) { |
@@ -5194,17 +6339,22 @@ window.CodeMirror = (function() { |
}); |
return out; |
} |
+ // Get the lines between from and to, as array of strings. |
function getLines(doc, from, to) { |
var out = []; |
doc.iter(from, to, function(line) { out.push(line.text); }); |
return out; |
} |
+ // Update the height of a line, propagating the height change |
+ // upwards to parent nodes. |
function updateLineHeight(line, height) { |
var diff = height - line.height; |
- for (var n = line; n; n = n.parent) n.height += diff; |
+ if (diff) for (var n = line; n; n = n.parent) n.height += diff; |
} |
+ // Given a line object, find its line number by walking up through |
+ // its parent links. |
function lineNo(line) { |
if (line.parent == null) return null; |
var cur = line.parent, no = indexOf(cur.lines, line); |
@@ -5217,10 +6367,12 @@ window.CodeMirror = (function() { |
return no + cur.first; |
} |
+ // Find the line at the given vertical position, using the height |
+ // information in the document tree. |
function lineAtHeight(chunk, h) { |
var n = chunk.first; |
outer: do { |
- for (var i = 0, e = chunk.children.length; i < e; ++i) { |
+ for (var i = 0; i < chunk.children.length; ++i) { |
var child = chunk.children[i], ch = child.height; |
if (h < ch) { chunk = child; continue outer; } |
h -= ch; |
@@ -5228,7 +6380,7 @@ window.CodeMirror = (function() { |
} |
return n; |
} while (!chunk.lines); |
- for (var i = 0, e = chunk.lines.length; i < e; ++i) { |
+ for (var i = 0; i < chunk.lines.length; ++i) { |
var line = chunk.lines[i], lh = line.height; |
if (h < lh) break; |
h -= lh; |
@@ -5236,8 +6388,10 @@ window.CodeMirror = (function() { |
return n + i; |
} |
- function heightAtLine(cm, lineObj) { |
- lineObj = visualLine(cm.doc, lineObj); |
+ |
+ // Find the height above the given line. |
+ function heightAtLine(lineObj) { |
+ lineObj = visualLine(lineObj); |
var h = 0, chunk = lineObj.parent; |
for (var i = 0; i < chunk.lines.length; ++i) { |
@@ -5255,6 +6409,9 @@ window.CodeMirror = (function() { |
return h; |
} |
+ // Get the bidi ordering for the given line (and cache it). Returns |
+ // false for lines that are fully left-to-right, and an array of |
+ // BidiSpan objects otherwise. |
function getOrder(line) { |
var order = line.order; |
if (order == null) order = line.order = bidiOrdering(line.text); |
@@ -5263,50 +6420,70 @@ window.CodeMirror = (function() { |
// HISTORY |
- function makeHistory(startGen) { |
- return { |
- // Arrays of history events. Doing something adds an event to |
- // done and clears undo. Undoing moves events from done to |
- // undone, redoing moves them in the other direction. |
- done: [], undone: [], undoDepth: Infinity, |
- // Used to track when changes can be merged into a single undo |
- // event |
- lastTime: 0, lastOp: null, lastOrigin: null, |
- // Used by the isClean() method |
- generation: startGen || 1, maxGeneration: startGen || 1 |
- }; |
- } |
- |
- function attachLocalSpans(doc, change, from, to) { |
- var existing = change["spans_" + doc.id], n = 0; |
- doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) { |
- if (line.markedSpans) |
- (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; |
- ++n; |
- }); |
- } |
- |
+ function History(startGen) { |
+ // Arrays of change events and selections. Doing something adds an |
+ // event to done and clears undo. Undoing moves events from done |
+ // to undone, redoing moves them in the other direction. |
+ this.done = []; this.undone = []; |
+ this.undoDepth = Infinity; |
+ // Used to track when changes can be merged into a single undo |
+ // event |
+ this.lastModTime = this.lastSelTime = 0; |
+ this.lastOp = null; |
+ this.lastOrigin = this.lastSelOrigin = null; |
+ // Used by the isClean() method |
+ this.generation = this.maxGeneration = startGen || 1; |
+ } |
+ |
+ // Create a history change event from an updateDoc-style change |
+ // object. |
function historyChangeFromChange(doc, change) { |
- var from = { line: change.from.line, ch: change.from.ch }; |
- var histChange = {from: from, to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; |
+ var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; |
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); |
linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true); |
return histChange; |
} |
- function addToHistory(doc, change, selAfter, opId) { |
+ // Pop all selection events off the end of a history array. Stop at |
+ // a change event. |
+ function clearSelectionEvents(array) { |
+ while (array.length) { |
+ var last = lst(array); |
+ if (last.ranges) array.pop(); |
+ else break; |
+ } |
+ } |
+ |
+ // Find the top change event in the history. Pop off selection |
+ // events that are in the way. |
+ function lastChangeEvent(hist, force) { |
+ if (force) { |
+ clearSelectionEvents(hist.done); |
+ return lst(hist.done); |
+ } else if (hist.done.length && !lst(hist.done).ranges) { |
+ return lst(hist.done); |
+ } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { |
+ hist.done.pop(); |
+ return lst(hist.done); |
+ } |
+ } |
+ |
+ // Register a change in the history. Merges changes that are within |
+ // a single operation, ore are close together with an origin that |
+ // allows merging (starting with "+") into a single event. |
+ function addChangeToHistory(doc, change, selAfter, opId) { |
var hist = doc.history; |
hist.undone.length = 0; |
- var time = +new Date, cur = lst(hist.done); |
+ var time = +new Date, cur; |
- if (cur && |
- (hist.lastOp == opId || |
+ if ((hist.lastOp == opId || |
hist.lastOrigin == change.origin && change.origin && |
- ((change.origin.charAt(0) == "+" && doc.cm && hist.lastTime > time - doc.cm.options.historyEventDelay) || |
- change.origin.charAt(0) == "*"))) { |
+ ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || |
+ change.origin.charAt(0) == "*")) && |
+ (cur = lastChangeEvent(hist, hist.lastOp == opId))) { |
// Merge this change into the last event |
var last = lst(cur.changes); |
- if (posEq(change.from, change.to) && posEq(change.from, last.to)) { |
+ if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { |
// Optimized case for simple insertion -- don't want to add |
// new changesets for every character typed |
last.to = changeEnd(change); |
@@ -5314,23 +6491,81 @@ window.CodeMirror = (function() { |
// Add new sub-event |
cur.changes.push(historyChangeFromChange(doc, change)); |
} |
- cur.anchorAfter = selAfter.anchor; cur.headAfter = selAfter.head; |
} else { |
// Can not be merged, start a new event. |
+ var before = lst(hist.done); |
+ if (!before || !before.ranges) |
+ pushSelectionToHistory(doc.sel, hist.done); |
cur = {changes: [historyChangeFromChange(doc, change)], |
- generation: hist.generation, |
- anchorBefore: doc.sel.anchor, headBefore: doc.sel.head, |
- anchorAfter: selAfter.anchor, headAfter: selAfter.head}; |
+ generation: hist.generation}; |
hist.done.push(cur); |
- while (hist.done.length > hist.undoDepth) |
+ while (hist.done.length > hist.undoDepth) { |
hist.done.shift(); |
+ if (!hist.done[0].ranges) hist.done.shift(); |
+ } |
} |
+ hist.done.push(selAfter); |
hist.generation = ++hist.maxGeneration; |
- hist.lastTime = time; |
+ hist.lastModTime = hist.lastSelTime = time; |
+ hist.lastOp = opId; |
+ hist.lastOrigin = hist.lastSelOrigin = change.origin; |
+ |
+ if (!last) signal(doc, "historyAdded"); |
+ } |
+ |
+ function selectionEventCanBeMerged(doc, origin, prev, sel) { |
+ var ch = origin.charAt(0); |
+ return ch == "*" || |
+ ch == "+" && |
+ prev.ranges.length == sel.ranges.length && |
+ prev.somethingSelected() == sel.somethingSelected() && |
+ new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500); |
+ } |
+ |
+ // Called whenever the selection changes, sets the new selection as |
+ // the pending selection in the history, and pushes the old pending |
+ // selection into the 'done' array when it was significantly |
+ // different (in number of selected ranges, emptiness, or time). |
+ function addSelectionToHistory(doc, sel, opId, options) { |
+ var hist = doc.history, origin = options && options.origin; |
+ |
+ // A new event is started when the previous origin does not match |
+ // the current, or the origins don't allow matching. Origins |
+ // starting with * are always merged, those starting with + are |
+ // merged when similar and close together in time. |
+ if (opId == hist.lastOp || |
+ (origin && hist.lastSelOrigin == origin && |
+ (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || |
+ selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) |
+ hist.done[hist.done.length - 1] = sel; |
+ else |
+ pushSelectionToHistory(sel, hist.done); |
+ |
+ hist.lastSelTime = +new Date; |
+ hist.lastSelOrigin = origin; |
hist.lastOp = opId; |
- hist.lastOrigin = change.origin; |
+ if (options && options.clearRedo !== false) |
+ clearSelectionEvents(hist.undone); |
+ } |
+ |
+ function pushSelectionToHistory(sel, dest) { |
+ var top = lst(dest); |
+ if (!(top && top.ranges && top.equals(sel))) |
+ dest.push(sel); |
+ } |
+ |
+ // Used to store marked span information in the history. |
+ function attachLocalSpans(doc, change, from, to) { |
+ var existing = change["spans_" + doc.id], n = 0; |
+ doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) { |
+ if (line.markedSpans) |
+ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; |
+ ++n; |
+ }); |
} |
+ // When un/re-doing restores text containing marked spans, those |
+ // that have been explicitly cleared should not be restored. |
function removeClearedSpans(spans) { |
if (!spans) return null; |
for (var i = 0, out; i < spans.length; ++i) { |
@@ -5340,6 +6575,7 @@ window.CodeMirror = (function() { |
return !out ? spans : out.length ? out : null; |
} |
+ // Retrieve and filter the old marked spans stored in a change event. |
function getOldSpans(doc, change) { |
var found = change["spans_" + doc.id]; |
if (!found) return null; |
@@ -5350,11 +6586,15 @@ window.CodeMirror = (function() { |
// Used both to provide a JSON-safe object in .getHistory, and, when |
// detaching a document, to split the history in two |
- function copyHistoryArray(events, newGroup) { |
+ function copyHistoryArray(events, newGroup, instantiateSel) { |
for (var i = 0, copy = []; i < events.length; ++i) { |
- var event = events[i], changes = event.changes, newChanges = []; |
- copy.push({changes: newChanges, anchorBefore: event.anchorBefore, headBefore: event.headBefore, |
- anchorAfter: event.anchorAfter, headAfter: event.headAfter}); |
+ var event = events[i]; |
+ if (event.ranges) { |
+ copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); |
+ continue; |
+ } |
+ var changes = event.changes, newChanges = []; |
+ copy.push({changes: newChanges}); |
for (var j = 0; j < changes.length; ++j) { |
var change = changes[j], m; |
newChanges.push({from: change.from, to: change.to, text: change.text}); |
@@ -5371,7 +6611,7 @@ window.CodeMirror = (function() { |
// Rebasing/resetting history to deal with externally-sourced changes |
- function rebaseHistSel(pos, from, to, diff) { |
+ function rebaseHistSelSingle(pos, from, to, diff) { |
if (to < pos.line) { |
pos.line += diff; |
} else if (from < pos.line) { |
@@ -5390,28 +6630,27 @@ window.CodeMirror = (function() { |
function rebaseHistArray(array, from, to, diff) { |
for (var i = 0; i < array.length; ++i) { |
var sub = array[i], ok = true; |
+ if (sub.ranges) { |
+ if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } |
+ for (var j = 0; j < sub.ranges.length; j++) { |
+ rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); |
+ rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); |
+ } |
+ continue; |
+ } |
for (var j = 0; j < sub.changes.length; ++j) { |
var cur = sub.changes[j]; |
- if (!sub.copied) { cur.from = copyPos(cur.from); cur.to = copyPos(cur.to); } |
if (to < cur.from.line) { |
- cur.from.line += diff; |
- cur.to.line += diff; |
+ cur.from = Pos(cur.from.line + diff, cur.from.ch); |
+ cur.to = Pos(cur.to.line + diff, cur.to.ch); |
} else if (from <= cur.to.line) { |
ok = false; |
break; |
} |
} |
- if (!sub.copied) { |
- sub.anchorBefore = copyPos(sub.anchorBefore); sub.headBefore = copyPos(sub.headBefore); |
- sub.anchorAfter = copyPos(sub.anchorAfter); sub.readAfter = copyPos(sub.headAfter); |
- sub.copied = true; |
- } |
if (!ok) { |
array.splice(0, i + 1); |
i = 0; |
- } else { |
- rebaseHistSel(sub.anchorBefore); rebaseHistSel(sub.headBefore); |
- rebaseHistSel(sub.anchorAfter); rebaseHistSel(sub.headAfter); |
} |
} |
} |
@@ -5422,30 +6661,23 @@ window.CodeMirror = (function() { |
rebaseHistArray(hist.undone, from, to, diff); |
} |
- // EVENT OPERATORS |
+ // EVENT UTILITIES |
- function stopMethod() {e_stop(this);} |
- // Ensure an event has a stop method. |
- function addStop(event) { |
- if (!event.stop) event.stop = stopMethod; |
- return event; |
- } |
+ // Due to the fact that we still support jurassic IE versions, some |
+ // compatibility wrappers are needed. |
- function e_preventDefault(e) { |
+ var e_preventDefault = CodeMirror.e_preventDefault = function(e) { |
if (e.preventDefault) e.preventDefault(); |
else e.returnValue = false; |
- } |
- function e_stopPropagation(e) { |
+ }; |
+ var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) { |
if (e.stopPropagation) e.stopPropagation(); |
else e.cancelBubble = true; |
- } |
+ }; |
function e_defaultPrevented(e) { |
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; |
} |
- function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} |
- CodeMirror.e_stop = e_stop; |
- CodeMirror.e_preventDefault = e_preventDefault; |
- CodeMirror.e_stopPropagation = e_stopPropagation; |
+ var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);}; |
function e_target(e) {return e.target || e.srcElement;} |
function e_button(e) { |
@@ -5461,7 +6693,10 @@ window.CodeMirror = (function() { |
// EVENT HANDLING |
- function on(emitter, type, f) { |
+ // Lightweight event framework. on/off also work on DOM nodes, |
+ // registering native DOM handlers. |
+ |
+ var on = CodeMirror.on = function(emitter, type, f) { |
if (emitter.addEventListener) |
emitter.addEventListener(type, f, false); |
else if (emitter.attachEvent) |
@@ -5471,9 +6706,9 @@ window.CodeMirror = (function() { |
var arr = map[type] || (map[type] = []); |
arr.push(f); |
} |
- } |
+ }; |
- function off(emitter, type, f) { |
+ var off = CodeMirror.off = function(emitter, type, f) { |
if (emitter.removeEventListener) |
emitter.removeEventListener(type, f, false); |
else if (emitter.detachEvent) |
@@ -5484,15 +6719,22 @@ window.CodeMirror = (function() { |
for (var i = 0; i < arr.length; ++i) |
if (arr[i] == f) { arr.splice(i, 1); break; } |
} |
- } |
+ }; |
- function signal(emitter, type /*, values...*/) { |
+ var signal = CodeMirror.signal = function(emitter, type /*, values...*/) { |
var arr = emitter._handlers && emitter._handlers[type]; |
if (!arr) return; |
var args = Array.prototype.slice.call(arguments, 2); |
for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args); |
- } |
+ }; |
+ // Often, we want to signal events at a point where we are in the |
+ // middle of some work, but don't want the handler to start calling |
+ // other methods on the editor, which might be in an inconsistent |
+ // state or simply not expect any other events to happen. |
+ // signalLater looks whether there are any handlers, and schedules |
+ // them to be executed when the last operation ends, or, if no |
+ // operation is active, when a timeout fires. |
var delayedCallbacks, delayedCallbackDepth = 0; |
function signalLater(emitter, type /*, values...*/) { |
var arr = emitter._handlers && emitter._handlers[type]; |
@@ -5508,11 +6750,6 @@ window.CodeMirror = (function() { |
delayedCallbacks.push(bnd(arr[i])); |
} |
- function signalDOMEvent(cm, e, override) { |
- signal(cm, override || e.type, cm, e); |
- return e_defaultPrevented(e) || e.codemirrorIgnore; |
- } |
- |
function fireDelayed() { |
--delayedCallbackDepth; |
var delayed = delayedCallbacks; |
@@ -5520,13 +6757,21 @@ window.CodeMirror = (function() { |
for (var i = 0; i < delayed.length; ++i) delayed[i](); |
} |
+ // The DOM events that CodeMirror handles can be overridden by |
+ // registering a (non-DOM) handler on the editor for the event name, |
+ // and preventDefault-ing the event in that handler. |
+ function signalDOMEvent(cm, e, override) { |
+ signal(cm, override || e.type, cm, e); |
+ return e_defaultPrevented(e) || e.codemirrorIgnore; |
+ } |
+ |
function hasHandler(emitter, type) { |
var arr = emitter._handlers && emitter._handlers[type]; |
return arr && arr.length > 0; |
} |
- CodeMirror.on = on; CodeMirror.off = off; CodeMirror.signal = signal; |
- |
+ // Add on and off methods to a constructor's prototype, to make |
+ // registering events on such objects more convenient. |
function eventMixin(ctor) { |
ctor.prototype.on = function(type, f) {on(this, type, f);}; |
ctor.prototype.off = function(type, f) {off(this, type, f);}; |
@@ -5541,23 +6786,47 @@ window.CodeMirror = (function() { |
// handling this'. |
var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}}; |
+ // Reused option objects for setSelection & friends |
+ var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; |
+ |
function Delayed() {this.id = null;} |
- Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}}; |
+ Delayed.prototype.set = function(ms, f) { |
+ clearTimeout(this.id); |
+ this.id = setTimeout(f, ms); |
+ }; |
// Counts the column offset in a string, taking tabs into account. |
// Used mostly to find indentation. |
- function countColumn(string, end, tabSize, startIndex, startValue) { |
+ var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) { |
if (end == null) { |
end = string.search(/[^\s\u00a0]/); |
if (end == -1) end = string.length; |
} |
- for (var i = startIndex || 0, n = startValue || 0; i < end; ++i) { |
- if (string.charAt(i) == "\t") n += tabSize - (n % tabSize); |
- else ++n; |
+ for (var i = startIndex || 0, n = startValue || 0;;) { |
+ var nextTab = string.indexOf("\t", i); |
+ if (nextTab < 0 || nextTab >= end) |
+ return n + (end - i); |
+ n += nextTab - i; |
+ n += tabSize - (n % tabSize); |
+ i = nextTab + 1; |
+ } |
+ }; |
+ |
+ // The inverse of countColumn -- find the offset that corresponds to |
+ // a particular column. |
+ function findColumn(string, goal, tabSize) { |
+ for (var pos = 0, col = 0;;) { |
+ var nextTab = string.indexOf("\t", pos); |
+ if (nextTab == -1) nextTab = string.length; |
+ var skipped = nextTab - pos; |
+ if (nextTab == string.length || col + skipped >= goal) |
+ return pos + Math.min(skipped, goal - col); |
+ col += nextTab - pos; |
+ col += tabSize - (col % tabSize); |
+ pos = nextTab + 1; |
+ if (col >= goal) return pos; |
} |
- return n; |
} |
- CodeMirror.countColumn = countColumn; |
var spaceStrs = [""]; |
function spaceStr(n) { |
@@ -5568,31 +6837,37 @@ window.CodeMirror = (function() { |
function lst(arr) { return arr[arr.length-1]; } |
- function selectInput(node) { |
- if (ios) { // Mobile Safari apparently has a bug where select() is broken. |
- node.selectionStart = 0; |
- node.selectionEnd = node.value.length; |
- } else { |
- // Suppress mysterious IE10 errors |
- try { node.select(); } |
- catch(_e) {} |
- } |
- } |
+ var selectInput = function(node) { node.select(); }; |
+ if (ios) // Mobile Safari apparently has a bug where select() is broken. |
+ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; |
+ else if (ie) // Suppress mysterious IE10 errors |
+ selectInput = function(node) { try { node.select(); } catch(_e) {} }; |
- function indexOf(collection, elt) { |
- if (collection.indexOf) return collection.indexOf(elt); |
- for (var i = 0, e = collection.length; i < e; ++i) |
- if (collection[i] == elt) return i; |
+ function indexOf(array, elt) { |
+ for (var i = 0; i < array.length; ++i) |
+ if (array[i] == elt) return i; |
return -1; |
} |
+ if ([].indexOf) indexOf = function(array, elt) { return array.indexOf(elt); }; |
+ function map(array, f) { |
+ var out = []; |
+ for (var i = 0; i < array.length; i++) out[i] = f(array[i], i); |
+ return out; |
+ } |
+ if ([].map) map = function(array, f) { return array.map(f); }; |
function createObj(base, props) { |
- function Obj() {} |
- Obj.prototype = base; |
- var inst = new Obj(); |
+ var inst; |
+ if (Object.create) { |
+ inst = Object.create(base); |
+ } else { |
+ var ctor = function() {}; |
+ ctor.prototype = base; |
+ inst = new ctor(); |
+ } |
if (props) copyObj(props, inst); |
return inst; |
- } |
+ }; |
function copyObj(obj, target) { |
if (!target) target = {}; |
@@ -5600,27 +6875,27 @@ window.CodeMirror = (function() { |
return target; |
} |
- function emptyArray(size) { |
- for (var a = [], i = 0; i < size; ++i) a.push(undefined); |
- return a; |
- } |
- |
function bind(f) { |
var args = Array.prototype.slice.call(arguments, 1); |
return function(){return f.apply(null, args);}; |
} |
- var nonASCIISingleCaseWordChar = /[\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; |
- function isWordChar(ch) { |
+ var nonASCIISingleCaseWordChar = /[\u00df\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; |
+ var isWordChar = CodeMirror.isWordChar = function(ch) { |
return /\w/.test(ch) || ch > "\x80" && |
(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)); |
- } |
+ }; |
function isEmpty(obj) { |
for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false; |
return true; |
} |
+ // Extending unicode characters. A series of a non-extending char + |
+ // any number of extending chars is treated as a single unit as far |
+ // as editing and measuring is concerned. This is not fully correct, |
+ // since some scripts/fonts/browsers also treat other configurations |
+ // of code points as a group. |
var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; |
function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); } |
@@ -5630,11 +6905,27 @@ window.CodeMirror = (function() { |
var e = document.createElement(tag); |
if (className) e.className = className; |
if (style) e.style.cssText = style; |
- if (typeof content == "string") setTextContent(e, content); |
+ if (typeof content == "string") e.appendChild(document.createTextNode(content)); |
else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); |
return e; |
} |
+ var range; |
+ if (document.createRange) range = function(node, start, end) { |
+ var r = document.createRange(); |
+ r.setEnd(node, end); |
+ r.setStart(node, start); |
+ return r; |
+ }; |
+ else range = function(node, start, end) { |
+ var r = document.body.createTextRange(); |
+ r.moveToElementText(node.parentNode); |
+ r.collapse(true); |
+ r.moveEnd("character", end); |
+ r.moveStart("character", start); |
+ return r; |
+ }; |
+ |
function removeChildren(e) { |
for (var count = e.childNodes.length; count > 0; --count) |
e.removeChild(e.firstChild); |
@@ -5645,17 +6936,20 @@ window.CodeMirror = (function() { |
return removeChildren(parent).appendChild(e); |
} |
- function setTextContent(e, str) { |
- if (ie_lt9) { |
- e.innerHTML = ""; |
- e.appendChild(document.createTextNode(str)); |
- } else e.textContent = str; |
+ function contains(parent, child) { |
+ if (parent.contains) |
+ return parent.contains(child); |
+ while (child = child.parentNode) |
+ if (child == parent) return true; |
} |
- function getRect(node) { |
- return node.getBoundingClientRect(); |
- } |
- CodeMirror.replaceGetRect = function(f) { getRect = f; }; |
+ function activeElt() { return document.activeElement; } |
+ // Older versions of IE throws unspecified error when touching |
+ // document.activeElement in some cases (during loading, in iframe) |
+ if (ie_upto10) activeElt = function() { |
+ try { return document.activeElement; } |
+ catch(e) { return document.body; } |
+ }; |
// FEATURE DETECTION |
@@ -5663,41 +6957,11 @@ window.CodeMirror = (function() { |
var dragAndDrop = function() { |
// There is *some* kind of drag-and-drop support in IE6-8, but I |
// couldn't get it to work yet. |
- if (ie_lt9) return false; |
+ if (ie_upto8) return false; |
var div = elt('div'); |
return "draggable" in div || "dragDrop" in div; |
}(); |
- // For a reason I have yet to figure out, some browsers disallow |
- // word wrapping between certain characters *only* if a new inline |
- // element is started between them. This makes it hard to reliably |
- // measure the position of things, since that requires inserting an |
- // extra span. This terribly fragile set of tests matches the |
- // character combinations that suffer from this phenomenon on the |
- // various browsers. |
- function spanAffectsWrapping() { return false; } |
- if (gecko) // Only for "$'" |
- spanAffectsWrapping = function(str, i) { |
- return str.charCodeAt(i - 1) == 36 && str.charCodeAt(i) == 39; |
- }; |
- else if (safari && !/Version\/([6-9]|\d\d)\b/.test(navigator.userAgent)) |
- spanAffectsWrapping = function(str, i) { |
- return /\-[^ \-?]|\?[^ !\'\"\),.\-\/:;\?\]\}]/.test(str.slice(i - 1, i + 1)); |
- }; |
- else if (webkit && /Chrome\/(?:29|[3-9]\d|\d\d\d)\./.test(navigator.userAgent)) |
- spanAffectsWrapping = function(str, i) { |
- var code = str.charCodeAt(i - 1); |
- return code >= 8208 && code <= 8212; |
- }; |
- else if (webkit) |
- spanAffectsWrapping = function(str, i) { |
- if (i > 1 && str.charCodeAt(i - 1) == 45) { |
- if (/\w/.test(str.charAt(i - 2)) && /[^\-?\.]/.test(str.charAt(i))) return true; |
- if (i > 2 && /[\d\.,]/.test(str.charAt(i - 2)) && /[\d\.,]/.test(str.charAt(i))) return false; |
- } |
- return /[~!#%&*)=+}\]\\|\"\.>,:;][({[<]|-[^\-?\.\u2010-\u201f\u2026]|\?[\w~`@#$%\^&*(_=+{[|><]|\u2026[\w~`@#$%\^&*(_=+{[><]/.test(str.slice(i - 1, i + 1)); |
- }; |
- |
var knownScrollbarWidth; |
function scrollbarWidth(measure) { |
if (knownScrollbarWidth != null) return knownScrollbarWidth; |
@@ -5714,15 +6978,26 @@ window.CodeMirror = (function() { |
var test = elt("span", "\u200b"); |
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); |
if (measure.firstChild.offsetHeight != 0) |
- zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !ie_lt8; |
+ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !ie_upto7; |
} |
if (zwspSupported) return elt("span", "\u200b"); |
else return elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); |
} |
+ // Feature-detect IE's crummy client rect reporting for bidi text |
+ var badBidiRects; |
+ function hasBadBidiRects(measure) { |
+ if (badBidiRects != null) return badBidiRects; |
+ var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); |
+ var r0 = range(txt, 0, 1).getBoundingClientRect(); |
+ if (r0.left == r0.right) return false; |
+ var r1 = range(txt, 1, 2).getBoundingClientRect(); |
+ return badBidiRects = (r1.right - r0.right < 3); |
+ } |
+ |
// See if "".split is the broken IE version, if so, provide an |
// alternative way to split lines. |
- var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) { |
+ var splitLines = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) { |
var pos = 0, result = [], l = string.length; |
while (pos <= l) { |
var nl = string.indexOf("\n", pos); |
@@ -5739,7 +7014,6 @@ window.CodeMirror = (function() { |
} |
return result; |
} : function(string){return string.split(/\r\n?|\n/);}; |
- CodeMirror.splitLines = splitLines; |
var hasSelection = window.getSelection ? function(te) { |
try { return te.selectionStart != te.selectionEnd; } |
@@ -5755,10 +7029,10 @@ window.CodeMirror = (function() { |
var e = elt("div"); |
if ("oncopy" in e) return true; |
e.setAttribute("oncopy", "return;"); |
- return typeof e.oncopy == 'function'; |
+ return typeof e.oncopy == "function"; |
})(); |
- // KEY NAMING |
+ // KEY NAMES |
var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", |
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", |
@@ -5804,19 +7078,21 @@ window.CodeMirror = (function() { |
function lineStart(cm, lineN) { |
var line = getLine(cm.doc, lineN); |
- var visual = visualLine(cm.doc, line); |
+ var visual = visualLine(line); |
if (visual != line) lineN = lineNo(visual); |
var order = getOrder(visual); |
var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); |
return Pos(lineN, ch); |
} |
function lineEnd(cm, lineN) { |
- var merged, line; |
- while (merged = collapsedSpanAtEnd(line = getLine(cm.doc, lineN))) |
- lineN = merged.find().to.line; |
+ var merged, line = getLine(cm.doc, lineN); |
+ while (merged = collapsedSpanAtEnd(line)) { |
+ line = merged.find(1, true).line; |
+ lineN = null; |
+ } |
var order = getOrder(line); |
var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); |
- return Pos(lineN, ch); |
+ return Pos(lineN == null ? lineNo(line) : lineN, ch); |
} |
function compareBidiLevel(order, a, b) { |
@@ -5853,12 +7129,11 @@ window.CodeMirror = (function() { |
return pos; |
} |
- // This is somewhat involved. It is needed in order to move |
- // 'visually' through bi-directional text -- i.e., pressing left |
- // should make the cursor go left, even when in RTL text. The |
- // tricky part is the 'jumps', where RTL and LTR text touch each |
- // other. This often requires the cursor offset to move more than |
- // one unit, in order to visually move one unit. |
+ // This is needed in order to move 'visually' through bi-directional |
+ // text -- i.e., pressing left should make the cursor go left, even |
+ // when in RTL text. The tricky part is the 'jumps', where RTL and |
+ // LTR text touch each other. This often requires the cursor offset |
+ // to move more than one unit, in order to visually move one unit. |
function moveVisually(line, start, dir, byUnit) { |
var bidi = getOrder(line); |
if (!bidi) return moveLogically(line, start, dir, byUnit); |
@@ -5913,14 +7188,16 @@ window.CodeMirror = (function() { |
// objects) in the order in which they occur visually. |
var bidiOrdering = (function() { |
// Character types for codepoints 0 to 0xff |
- var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLL"; |
+ var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; |
// Character types for codepoints 0x600 to 0x6ff |
- var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmmrrrrrrrrrrrrrrrrrr"; |
+ var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm"; |
function charType(code) { |
- if (code <= 0xff) return lowTypes.charAt(code); |
+ if (code <= 0xf7) return lowTypes.charAt(code); |
else if (0x590 <= code && code <= 0x5f4) return "R"; |
- else if (0x600 <= code && code <= 0x6ff) return arabicTypes.charAt(code - 0x600); |
- else if (0x700 <= code && code <= 0x8ac) return "r"; |
+ else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600); |
+ else if (0x6ee <= code && code <= 0x8ac) return "r"; |
+ else if (0x2000 <= code && code <= 0x200b) return "w"; |
+ else if (code == 0x200c) return "b"; |
else return "L"; |
} |
@@ -5929,6 +7206,11 @@ window.CodeMirror = (function() { |
// Browsers seem to always treat the boundaries of block elements as being L. |
var outerType = "L"; |
+ function BidiSpan(level, from, to) { |
+ this.level = level; |
+ this.from = from; this.to = to; |
+ } |
+ |
return function(str) { |
if (!bidiRE.test(str)) return false; |
var len = str.length, types = []; |
@@ -6018,32 +7300,32 @@ window.CodeMirror = (function() { |
if (countsAsLeft.test(types[i])) { |
var start = i; |
for (++i; i < len && countsAsLeft.test(types[i]); ++i) {} |
- order.push({from: start, to: i, level: 0}); |
+ order.push(new BidiSpan(0, start, i)); |
} else { |
var pos = i, at = order.length; |
for (++i; i < len && types[i] != "L"; ++i) {} |
for (var j = pos; j < i;) { |
if (countsAsNum.test(types[j])) { |
- if (pos < j) order.splice(at, 0, {from: pos, to: j, level: 1}); |
+ if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j)); |
var nstart = j; |
for (++j; j < i && countsAsNum.test(types[j]); ++j) {} |
- order.splice(at, 0, {from: nstart, to: j, level: 2}); |
+ order.splice(at, 0, new BidiSpan(2, nstart, j)); |
pos = j; |
} else ++j; |
} |
- if (pos < i) order.splice(at, 0, {from: pos, to: i, level: 1}); |
+ if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i)); |
} |
} |
if (order[0].level == 1 && (m = str.match(/^\s+/))) { |
order[0].from = m[0].length; |
- order.unshift({from: 0, to: m[0].length, level: 0}); |
+ order.unshift(new BidiSpan(0, 0, m[0].length)); |
} |
if (lst(order).level == 1 && (m = str.match(/\s+$/))) { |
lst(order).to -= m[0].length; |
- order.push({from: len - m[0].length, to: len, level: 0}); |
+ order.push(new BidiSpan(0, len - m[0].length, len)); |
} |
if (order[0].level != lst(order).level) |
- order.push({from: len, to: len, level: order[0].level}); |
+ order.push(new BidiSpan(order[0].level, len, len)); |
return order; |
}; |
@@ -6051,7 +7333,7 @@ window.CodeMirror = (function() { |
// THE END |
- CodeMirror.version = "3.21.1"; |
+ CodeMirror.version = "4.0.3"; |
return CodeMirror; |
-})(); |
+}); |