+$.extend(Canvas.prototype.list, {
+ create: function(params) {
+ if(!(params.element1.parent().sameNode(params.element2.parent())))
+ return false;
+
+ var parent = params.element1.parent();
+
+ if(parent.childIndex(params.element1) > parent.childIndex(params.element2)) {
+ var tmp = params.element1;
+ params.element1 = params.element2;
+ params.element2 = tmp;
+ }
+
+ var elementsToWrap = [];
+
+ var place = 'before';
+ var canvas = this;
+ parent.children().some(function(element) {
+ var _e = element;
+ if(element.sameNode(params.element1))
+ place = 'inside';
+ if(place === 'inside') {
+ if(element instanceof documentElement.DocumentTextElement) {
+ element = element.wrapWithNodeElement({tag: 'div', klass: 'list.item'});
+ if(element.children()[0].sameNode(params.element1))
+ params.element1 = element;
+ }
+ element.setWlxmlClass('item');
+ elementsToWrap.push(element);
+ }
+ if(_e.sameNode(params.element2))
+ return true;
+ });
+
+ var listElement = documentElement.DocumentNodeElement.create({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')});
+
+ var toret;
+ if(parent.is('list')) {
+ listElement.wrapWithNodeElement({tag: 'div', klass: 'item'});
+ toret = listElement.parent();
+ } else {
+ toret = listElement;
+ }
+
+ params.element1.before(toret);
+
+ elementsToWrap.forEach(function(element) {
+ element.detach();
+ listElement.append(element);
+ });
+ },
+ extractItems: function(params) {
+ params = _.extend({merge: true}, params);
+ var list = params.element1.parent();
+ if(!list.is('list') || !(list.sameNode(params.element2.parent())))
+ return false;
+
+ var idx1 = list.childIndex(params.element1),
+ idx2 = list.childIndex(params.element2),
+ precedingItems = [],
+ extractedItems = [],
+ succeedingItems = [],
+ items = list.children(),
+ listIsNested = list.parent().getWlxmlClass() === 'item',
+ i;
+
+ if(idx1 > idx2) {
+ var tmp = idx1; idx1 = idx2; idx2 = tmp;
+ }
+
+ items.forEach(function(item, idx) {
+ if(idx < idx1)
+ precedingItems.push(item);
+ else if(idx >= idx1 && idx <= idx2) {
+ extractedItems.push(item);
+ }
+ else {
+ succeedingItems.push(item);
+ }
+ });
+
+ var reference = listIsNested ? list.parent() : list;
+ if(succeedingItems.length === 0) {
+ var reference_orig = reference;
+ extractedItems.forEach(function(item) {
+ reference.after(item);
+ reference = item;
+ if(!listIsNested)
+ item.setWlxmlClass(null);
+ });
+ if(precedingItems.length === 0)
+ reference_orig.detach();
+ } else if(precedingItems.length === 0) {
+ extractedItems.forEach(function(item) {
+ reference.before(item);
+ if(!listIsNested)
+ item.setWlxmlClass(null);
+ });
+ } else {
+ extractedItems.forEach(function(item) {
+ reference.after(item);
+ if(!listIsNested)
+ item.setWlxmlClass(null);
+ reference = item;
+ });
+ var secondList = documentElement.DocumentNodeElement.create({tag: 'div', klass:'list-items'}, this),
+ toAdd = secondList;
+
+ if(listIsNested) {
+ toAdd = secondList.wrapWithNodeElement({tag: 'div', klass:'item'});
+ }
+ succeedingItems.forEach(function(item) {
+ secondList.append(item);
+ });
+
+ reference.after(toAdd);
+ }
+ if(!params.merge && listIsNested) {
+ return this.extractItems({element1: extractedItems[0], element2: extractedItems[extractedItems.length-1]});
+ }
+ return true;
+ },
+ areItemsOfTheSameList: function(params) {
+ var e1 = params.element1,
+ e2 = params.element2;
+ return e1.parent().sameNode(e2.parent())
+ && e1.parent().is('list');
+ }
+});
+
+
+var Cursor = function(canvas) {
+ this.canvas = canvas;
+};
+
+$.extend(Cursor.prototype, {
+ isSelecting: function() {
+ var selection = window.getSelection();
+ return !selection.isCollapsed;
+ },
+ isSelectingWithinElement: function() {
+ return this.isSelecting() && this.getSelectionStart().element.sameNode(this.getSelectionEnd().element);
+ },
+ isSelectingSiblings: function() {
+ return this.isSelecting() && this.getSelectionStart().element.parent().sameNode(this.getSelectionEnd().element.parent());
+ },
+ getPosition: function() {
+ return this.getSelectionAnchor();
+ },
+ getSelectionStart: function() {
+ return this.getSelectionBoundry('start');
+ },
+ getSelectionEnd: function() {
+ return this.getSelectionBoundry('end');
+ },
+ getSelectionAnchor: function() {
+ return this.getSelectionBoundry('anchor');
+ },
+ getSelectionBoundry: function(which) {
+ var selection = window.getSelection(),
+ anchorElement = this.canvas.getDocumentElement(selection.anchorNode),
+ focusElement = this.canvas.getDocumentElement(selection.focusNode);
+
+ if(which === 'anchor') {
+ return {
+ element: anchorElement,
+ offset: selection.anchorOffset
+ };
+ }
+
+ var element,
+ offset;
+
+ if(anchorElement.parent().sameNode(focusElement.parent())) {
+ var parent = anchorElement.parent(),
+ anchorFirst = parent.childIndex(anchorElement) < parent.childIndex(focusElement);
+ if(anchorFirst) {
+ if(which === 'start') {
+ element = anchorElement;
+ offset = selection.anchorOffset;
+ }
+ else if(which === 'end') {
+ element = focusElement,
+ offset = selection.focusOffset;
+ }
+ } else {
+ if(which === 'start') {
+ element = focusElement,
+ offset = selection.focusOffset
+ }
+ else if(which === 'end') {
+ element = anchorElement;
+ offset = selection.anchorOffset;
+ }
+ }
+ } else {
+ // TODO: Handle order
+ if(which === 'start') {
+ element = anchorElement;
+ offset = selection.anchorOffset
+ } else {
+ element = focusElement;
+ offset = selection.focusOffset
+ }
+ }
+
+ return {
+ element: element,
+ offset: offset
+ }
+ }
+})
+