6 ], function($, _, Backbone, events) {
11 var TEXT_NODE = Node.TEXT_NODE;
14 var DocumentNode = function(nativeNode, document) {
16 throw new Error('undefined document for a node');
18 this.document = document;
19 this._setNativeNode(nativeNode);
23 $.extend(DocumentNode.prototype, {
24 _setNativeNode: function(nativeNode) {
25 this.nativeNode = nativeNode;
26 this._$ = $(nativeNode);
34 sameNode: function(otherNode) {
35 return otherNode && this.nativeNode === otherNode.nativeNode;
39 return this.nativeNode.parentNode ? this.document.createElementNode(this.nativeNode.parentNode) : null;
42 after: function(node) {
43 node = node instanceof ElementNode ? node : this.document.createElementNode(node);
44 this._$.after(node.nativeNode);
48 before: function(node) {
49 node = node instanceof ElementNode ? node : this.document.createElementNode(node);
50 this._$.before(node.nativeNode);
54 wrapWith: function(node) {
55 node = node instanceof ElementNode ? node : this.document.createElementNode(node);
64 triggerChangeEvent: function(type, metaData) {
65 var event = new events.ChangeEvent(type, $.extend({node: this}, metaData || {}));
66 this.document.trigger('change', event);
70 var ElementNode = function(nativeNode, document) {
71 DocumentNode.call(this, nativeNode, document);
73 ElementNode.prototype = Object.create(DocumentNode.prototype);
75 $.extend(ElementNode.prototype, {
76 nodeType: Node.ELEMENT_NODE,
78 setData: function(key, value) {
79 if(value !== undefined) {
80 this._$.data(key, value);
82 this._$.removeData(_.keys(this._$.data()));
87 getData: function(key) {
89 return this._$.data(key);
91 return this._$.data();
94 getTagName: function() {
95 return this.nativeNode.tagName.toLowerCase();
98 contents: function() {
100 document = this.document;
101 this._$.contents().each(function() {
102 if(this.nodeType === Node.ELEMENT_NODE) {
103 toret.push(document.createElementNode(this));
105 else if(this.nodeType === Node.TEXT_NODE) {
106 toret.push(document.createTextNode(this));
112 indexOf: function(node) {
113 return this._$.contents().index(node._$);
116 setTag: function(tagName) {
117 var node = this.document.createElementNode({tagName: tagName}),
118 oldTagName = this.getTagName(),
119 myContents = this._$.contents();
121 this.getAttrs().forEach(function(attribute) {
122 node.setAttr(attribute.name, attribute.value, true);
124 node.setData(this.getData());
126 if(this.sameNode(this.document.root)) {
127 defineDocumentProperties(this.document, node._$);
129 this._$.replaceWith(node._$);
130 this._setNativeNode(node._$[0]);
131 this._$.append(myContents);
132 this.triggerChangeEvent('nodeTagChange', {oldTagName: oldTagName, newTagName: this.getTagName()});
135 getAttr: function(name) {
136 return this._$.attr(name);
139 setAttr: function(name, value, silent) {
140 var oldVal = this.getAttr(name);
141 this._$.attr(name, value);
143 this.triggerChangeEvent('nodeAttrChange', {attr: name, oldVal: oldVal, newVal: value});
147 getAttrs: function() {
149 for(var i = 0; i < this.nativeNode.attributes.length; i++) {
150 toret.push(this.nativeNode.attributes[i]);
155 append: function(node) {
156 node = node instanceof DocumentNode ? node : this.document.createElementNode(node);
157 this._$.append(node.nativeNode);
160 prepend: function(node) {
161 node = node instanceof DocumentNode ? node : this.document.createElementNode(node);
162 this._$.prepend(node.nativeNode);
165 unwrapContent: function() {
166 var parent = this.parent();
171 var parentContents = parent.contents(),
172 myContents = this.contents(),
173 myIdx = parent.indexOf(this);
175 if(myContents.length === 0) {
176 return this.detach();
179 var moveLeftRange, moveRightRange, leftMerged;
181 if(myIdx > 0 && (parentContents[myIdx-1].nodeType === TEXT_NODE) && (myContents[0].nodeType === TEXT_NODE)) {
182 parentContents[myIdx-1].appendText(myContents[0].getText());
183 myContents[0].detach();
184 moveLeftRange = true;
190 if(!(leftMerged && myContents.length === 1)) {
191 if(myIdx < parentContents.length - 1 && (parentContents[myIdx+1].nodeType === TEXT_NODE) && (myContents[myContents.length-1].nodeType === TEXT_NODE)) {
192 parentContents[myIdx+1].prependText(myContents[myContents.length-1].getText());
193 myContents[myContents.length-1].detach();
194 moveRightRange = true;
198 var childrenLength = this.contents().length;
199 this.contents().forEach(function(child) {
206 element1: parent.contents()[myIdx + (moveLeftRange ? -1 : 0)],
207 element2: parent.contents()[myIdx + childrenLength-1 + (moveRightRange ? 1 : 0)]
211 wrapText: function(params) {
212 return this.document._wrapText(_.extend({inside: this}, params));
216 var wrapper = $('<div>');
217 wrapper.append(this._getXMLDOMToDump());
218 return wrapper.html();
221 _getXMLDOMToDump: function() {
226 var TextNode = function(nativeNode, document) {
227 DocumentNode.call(this, nativeNode, document);
229 TextNode.prototype = Object.create(DocumentNode.prototype);
231 $.extend(TextNode.prototype, {
232 nodeType: Node.TEXT_NODE,
234 getText: function() {
235 return this.nativeNode.data;
238 setText: function(text) {
239 this.nativeNode.data = text;
240 this.triggerTextChangeEvent();
243 appendText: function(text) {
244 this.nativeNode.data = this.nativeNode.data + text;
245 this.triggerTextChangeEvent();
248 prependText: function(text) {
249 this.nativeNode.data = text + this.nativeNode.data;
250 this.triggerTextChangeEvent();
253 wrapWith: function(desc) {
254 if(typeof desc.start === 'number' && typeof desc.end === 'number') {
255 return this.document._wrapText({
256 inside: this.parent(),
257 textNodeIdx: this.parent().indexOf(this),
258 offsetStart: Math.min(desc.start, desc.end),
259 offsetEnd: Math.max(desc.start, desc.end),
260 _with: {tag: desc.tagName, attrs: desc.attrs}
263 return DocumentNode.prototype.wrapWith.call(this, desc);
267 triggerTextChangeEvent: function() {
268 var event = new events.ChangeEvent('nodeTextChange', {node: this});
269 this.document.trigger('change', event);
274 var parseXML = function(xml) {
278 var Document = function(xml) {
282 $.extend(Document.prototype, Backbone.Events, {
283 ElementNodeFactory: ElementNode,
284 TextNodeFactory: TextNode,
286 createElementNode: function(from) {
287 if(!(from instanceof HTMLElement)) {
289 from = document.createTextNode(from.text);
291 var node = $('<' + from.tagName + '>');
293 _.keys(from.attrs || {}).forEach(function(key) {
294 node.attr(key, from.attrs[key]);
300 return new this.ElementNodeFactory(from, this);
303 createTextNode: function(nativeNode) {
304 return new this.TextNodeFactory(nativeNode, this);
307 loadXML: function(xml, options) {
308 options = options || {};
309 defineDocumentProperties(this, $(parseXML(xml)));
310 if(!options.silent) {
311 this.trigger('contentSet');
316 return this.root.toXML();
319 wrapNodes: function(params) {
320 if(!(params.element1.parent().sameNode(params.element2.parent()))) {
321 throw new Error('Wrapping non-sibling nodes not supported.');
324 var parent = params.element1.parent(),
325 parentContents = parent.contents(),
326 wrapper = this.createElementNode({
327 tagName: params._with.tagName,
328 attrs: params._with.attrs}),
329 idx1 = parent.indexOf(params.element1),
330 idx2 = parent.indexOf(params.element2);
338 var insertingMethod, insertingTarget;
340 insertingMethod = 'prepend';
341 insertingTarget = parent;
343 insertingMethod = 'after';
344 insertingTarget = parentContents[idx1-1];
347 for(var i = idx1; i <= idx2; i++) {
348 wrapper.append(parentContents[i].detach());
351 insertingTarget[insertingMethod](wrapper);
355 _wrapText: function(params) {
356 params = _.extend({textNodeIdx: 0}, params);
357 if(typeof params.textNodeIdx === 'number') {
358 params.textNodeIdx = [params.textNodeIdx];
361 var contentsInside = params.inside.contents(),
362 idx1 = Math.min.apply(Math, params.textNodeIdx),
363 idx2 = Math.max.apply(Math, params.textNodeIdx),
364 textNode1 = contentsInside[idx1],
365 textNode2 = contentsInside[idx2],
366 sameNode = textNode1.sameNode(textNode2),
367 prefixOutside = textNode1.getText().substr(0, params.offsetStart),
368 prefixInside = textNode1.getText().substr(params.offsetStart),
369 suffixInside = textNode2.getText().substr(0, params.offsetEnd),
370 suffixOutside = textNode2.getText().substr(params.offsetEnd)
373 if(!(textNode1.parent().sameNode(textNode2.parent()))) {
374 throw new Error('Wrapping text in non-sibling text nodes not supported.');
377 var wrapperElement = this.createElementNode({tagName: params._with.tag, attrs: params._with.attrs});
378 textNode1.after(wrapperElement);
381 if(prefixOutside.length > 0) {
382 wrapperElement.before({text:prefixOutside});
385 var core = textNode1.getText().substr(params.offsetStart, params.offsetEnd - params.offsetStart);
386 wrapperElement.append({text: core});
389 if(prefixInside.length > 0) {
390 wrapperElement.append({text: prefixInside});
392 for(var i = idx1 + 1; i < idx2; i++) {
393 wrapperElement.append(contentsInside[i]);
395 if(suffixInside.length > 0) {
396 wrapperElement.append({text: suffixInside});
399 if(suffixOutside.length > 0) {
400 wrapperElement.after({text: suffixOutside});
402 return wrapperElement;
406 var defineDocumentProperties = function(doc, $document) {
407 Object.defineProperty(doc, 'root', {get: function() {
408 return doc.createElementNode($document[0]);
409 }, configurable: true});
410 Object.defineProperty(doc, 'dom', {get: function() {
412 }, configurable: true});
416 documentFromXML: function(xml) {
417 return new Document(parseXML(xml));
420 elementNodeFromXML: function(xml) {
421 return this.documentFromXML(xml).root;
425 DocumentNode: DocumentNode,
426 ElementNode: ElementNode