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Unified Diff: node_modules/vulcanize/node_modules/whacko/lib/api/manipulation.js

Issue 800513006: Added vulcanize under third_party/npm_modules (Closed) Base URL: https://chromium.googlesource.com/infra/third_party/npm_modules.git@master
Patch Set: Created 6 years ago
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Index: node_modules/vulcanize/node_modules/whacko/lib/api/manipulation.js
diff --git a/node_modules/vulcanize/node_modules/whacko/lib/api/manipulation.js b/node_modules/vulcanize/node_modules/whacko/lib/api/manipulation.js
new file mode 100644
index 0000000000000000000000000000000000000000..c086baa1c02174240c03c96a47840bb5eee7ba92
--- /dev/null
+++ b/node_modules/vulcanize/node_modules/whacko/lib/api/manipulation.js
@@ -0,0 +1,303 @@
+var _ = require('lodash'),
+ parse = require('../parse'),
+ $ = require('../static'),
+ updateDOM = parse.update,
+ evaluate = parse.evaluate,
+ utils = require('../utils'),
+ domEach = utils.domEach,
+ slice = Array.prototype.slice;
+
+// Create an array of nodes, recursing into arrays and parsing strings if
+// necessary
+exports._makeDomArray = function makeDomArray(elem) {
+ if (elem == null) {
+ return [];
+ } else if (elem.cheerio) {
+ return elem.get();
+ } else if (Array.isArray(elem)) {
+ return _.flatten(elem.map(makeDomArray, this));
+ } else if (typeof elem === 'string') {
+ return evaluate(elem, this.options);
+ } else {
+ return [elem];
+ }
+};
+
+var _insert = function(concatenator) {
+ return function() {
+ var self = this,
+ elems = slice.call(arguments),
+ dom = this._makeDomArray(elems);
+
+ if (typeof elems[0] === 'function') {
+ return domEach(this, function(i, el) {
+ dom = self._makeDomArray(elems[0].call(el, i, $.html(el.children)));
+ concatenator(dom, el.children, el);
+ });
+ } else {
+ return domEach(this, function(i, el) {
+ concatenator(dom, el.children, el);
+ });
+ }
+ };
+};
+
+/*
+ * Modify an array in-place, removing some number of elements and adding new
+ * elements directly following them.
+ *
+ * @param {Array} array Target array to splice.
+ * @param {Number} spliceIdx Index at which to begin changing the array.
+ * @param {Number} spliceCount Number of elements to remove from the array.
+ * @param {Array} newElems Elements to insert into the array.
+ *
+ * @api private
+ */
+var uniqueSplice = function(array, spliceIdx, spliceCount, newElems, parent) {
+ var spliceArgs = [spliceIdx, spliceCount].concat(newElems),
+ prev = array[spliceIdx - 1] || null,
+ next = array[spliceIdx] || null;
+ var idx, len, prevIdx, node, oldParent;
+
+ // Before splicing in new elements, ensure they do not already appear in the
+ // current array.
+ for (idx = 0, len = newElems.length; idx < len; ++idx) {
+ node = newElems[idx];
+ oldParent = node.parent || node.root;
+ prevIdx = oldParent && oldParent.children.indexOf(newElems[idx]);
+
+ if (oldParent && prevIdx > -1) {
+ oldParent.children.splice(prevIdx, 1);
+ if (parent === oldParent && spliceIdx > prevIdx) {
+ spliceArgs[0]--;
+ }
+ }
+
+ node.root = null;
+ node.parent = parent;
+
+ if (node.prev) {
+ node.prev.next = node.next || null;
+ }
+
+ if (node.next) {
+ node.next.prev = node.prev || null;
+ }
+
+ node.prev = newElems[idx - 1] || prev;
+ node.next = newElems[idx + 1] || next;
+ }
+
+ if (prev) {
+ prev.next = newElems[0];
+ }
+ if (next) {
+ next.prev = newElems[newElems.length - 1];
+ }
+
+ return array.splice.apply(array, spliceArgs);
+};
+
+exports.append = _insert(function(dom, children, parent) {
+ uniqueSplice(children, children.length, 0, dom, parent);
+});
+
+exports.prepend = _insert(function(dom, children, parent) {
+ uniqueSplice(children, 0, 0, dom, parent);
+});
+
+exports.after = function() {
+ var elems = slice.call(arguments),
+ dom = this._makeDomArray(elems),
+ self = this;
+
+ domEach(this, function(i, el) {
+ var parent = el.parent || el.root;
+ if (!parent) {
+ return;
+ }
+
+ var siblings = parent.children,
+ index = siblings.indexOf(el);
+
+ // If not found, move on
+ if (!~index) return;
+
+ if (typeof elems[0] === 'function') {
+ dom = self._makeDomArray(elems[0].call(el, i));
+ }
+
+ // Add element after `this` element
+ uniqueSplice(siblings, ++index, 0, dom, parent);
+ });
+
+ return this;
+};
+
+exports.before = function() {
+ var elems = slice.call(arguments),
+ dom = this._makeDomArray(elems),
+ self = this;
+
+ domEach(this, function(i, el) {
+ var parent = el.parent || el.root;
+ if (!parent) {
+ return;
+ }
+
+ var siblings = parent.children,
+ index = siblings.indexOf(el);
+
+ // If not found, move on
+ if (!~index) return;
+
+ if (typeof elems[0] === 'function') {
+ dom = self._makeDomArray(elems[0].call(el, i));
+ }
+
+ // Add element before `el` element
+ uniqueSplice(siblings, index, 0, dom, parent);
+ });
+
+ return this;
+};
+
+/*
+ remove([selector])
+*/
+exports.remove = function(selector) {
+ var elems = this;
+
+ // Filter if we have selector
+ if (selector)
+ elems = elems.filter(selector);
+
+ domEach(elems, function(i, el) {
+ var parent = el.parent || el.root;
+ if (!parent) {
+ return;
+ }
+
+ var siblings = parent.children,
+ index = siblings.indexOf(el);
+
+ if (!~index) return;
+
+
+ siblings.splice(index, 1);
+ if (el.prev) {
+ el.prev.next = el.next;
+ }
+ if (el.next) {
+ el.next.prev = el.prev;
+ }
+ el.prev = el.next = el.parent = el.root = null;
+ });
+
+ return this;
+};
+
+exports.replaceWith = function(content) {
+ var self = this;
+
+ domEach(this, function(i, el) {
+ var parent = el.parent || el.root;
+ if (!parent) {
+ return;
+ }
+
+ var siblings = parent.children,
+ dom = self._makeDomArray(typeof content === 'function' ? content.call(el, i, el) : content),
+ index;
+
+ // In the case that `dom` contains nodes that already exist in other
+ // structures, ensure those nodes are properly removed.
+ updateDOM(dom, null);
+
+ index = siblings.indexOf(el);
+
+ // Completely remove old element
+ uniqueSplice(siblings, index, 1, dom, parent);
+ el.parent = el.prev = el.next = el.root = null;
+ });
+
+ return this;
+};
+
+exports.empty = function() {
+ domEach(this, function(i, el) {
+ _.each(el.children, function(el) {
+ el.next = el.prev = el.parent = null;
+ });
+
+ el.children.length = 0;
+ });
+ return this;
+};
+
+/**
+ * Set/Get the HTML
+ */
+exports.html = function(str) {
+ if (str === undefined) {
+ if (!this[0] || !this[0].children) return null;
+ return $.html(this[0].children, this.options);
+ }
+
+ var opts = this.options;
+
+ domEach(this, function(i, el) {
+ _.each(el.children, function(el) {
+ el.next = el.prev = el.parent = null;
+ });
+
+ var content = str.cheerio ? str.clone().get() : evaluate(str, opts);
+
+ updateDOM(content, el);
+ });
+
+ return this;
+};
+
+exports.toString = function() {
+ return $.html(this);
+};
+
+exports.text = function(str) {
+ // If `str` is undefined, act as a "getter"
+ if (str === undefined) {
+ return $.text(this);
+ } else if (typeof str === 'function') {
+ // Function support
+ return domEach(this, function(i, el) {
+ var $el = [el];
+ return exports.text.call($el, str.call(el, i, $.text($el)));
+ });
+ }
+
+ // Append text node to each selected elements
+ domEach(this, function(i, el) {
+ _.each(el.children, function(el) {
+ el.next = el.prev = el.parent = null;
+ });
+
+ var elem = {
+ data: str,
+ type: 'text',
+ parent: el,
+ prev: null,
+ next: null,
+ children: []
+ };
+
+ updateDOM(elem, el);
+ });
+
+ return this;
+};
+
+exports.clone = function() {
+ // Turn it into HTML, then recreate it,
+ // Seems to be the easiest way to reconnect everything correctly
+ return this._make($.html(this, this.options));
+};

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