text: /**
   * plugin.js
   *
   * Copyright, Moxiecode Systems AB
   * Released under LGPL License.
   *
   * License: http://www.tinymce.com/license
   * Contributing: http://www.tinymce.com/contributing
   */
  
  /*global tinymce:true */
  /*eslint consistent-this:0 */
  
  tinymce.PluginManager.add('lists', function(editor) {
  	var self = this;
  
  	function isListNode(node) {
  		return node && (/^(OL|UL|DL)$/).test(node.nodeName);
  	}
  
  	function isFirstChild(node) {
  		return node.parentNode.firstChild == node;
  	}
  
  	function isLastChild(node) {
  		return node.parentNode.lastChild == node;
  	}
  
  	function isTextBlock(node) {
  		return node && !!editor.schema.getTextBlockElements()[node.nodeName];
  	}
  
  	editor.on('init', function() {
  		var dom = editor.dom, selection = editor.selection;
  
  		/**
  		 * Returns a range bookmark. This will convert indexed bookmarks into temporary span elements with
  		 * index 0 so that they can be restored properly after the DOM has been modified. Text bookmarks will not have spans
  		 * added to them since they can be restored after a dom operation.
  		 *
  		 * So this: <p><b>|</b><b>|</b></p>
  		 * becomes: <p><b><span data-mce-type="bookmark">|</span></b><b data-mce-type="bookmark">|</span></b></p>
  		 *
  		 * @param  {DOMRange} rng DOM Range to get bookmark on.
  		 * @return {Object} Bookmark object.
  		 */
  		function createBookmark(rng) {
  			var bookmark = {};
  
  			function setupEndPoint(start) {
  				var offsetNode, container, offset;
  
  				container = rng[start ? 'startContainer' : 'endContainer'];
  				offset = rng[start ? 'startOffset' : 'endOffset'];
  
  				if (container.nodeType == 1) {
  					offsetNode = dom.create('span', {'data-mce-type': 'bookmark'});
  
  					if (container.hasChildNodes()) {
  						offset = Math.min(offset, container.childNodes.length - 1);
  
  						if (start) {
  							container.insertBefore(offsetNode, container.childNodes[offset]);
  						} else {
  							dom.insertAfter(offsetNode, container.childNodes[offset]);
  						}
  					} else {
  						container.appendChild(offsetNode);
  					}
  
  					container = offsetNode;
  					offset = 0;
  				}
  
  				bookmark[start ? 'startContainer' : 'endContainer'] = container;
  				bookmark[start ? 'startOffset' : 'endOffset'] = offset;
  			}
  
  			setupEndPoint(true);
  
  			if (!rng.collapsed) {
  				setupEndPoint();
  			}
  
  			return bookmark;
  		}
  
  		/**
  		 * Moves the selection to the current bookmark and removes any selection container wrappers.
  		 *
  		 * @param {Object} bookmark Bookmark object to move selection to.
  		 */
  		function moveToBookmark(bookmark) {
  			function restoreEndPoint(start) {
  				var container, offset, node;
  
  				function nodeIndex(container) {
  					var node = container.parentNode.firstChild, idx = 0;
  
  					while (node) {
  						if (node == container) {
  							return idx;
  						}
  
  						// Skip data-mce-type=bookmark nodes
  						if (node.nodeType != 1 || node.getAttribute('data-mce-type') != 'bookmark') {
  							idx++;
  						}
  
  						node = node.nextSibling;
  					}
  
  					return -1;
  				}
  
  				container = node = bookmark[start ? 'startContainer' : 'endContainer'];
  				offset = bookmark[start ? 'startOffset' : 'endOffset'];
  
  				if (!container) {
  					return;
  				}
  
  				if (container.nodeType == 1) {
  					offset = nodeIndex(container);
  					container = container.parentNode;
  					dom.remove(node);
  				}
  
  				bookmark[start ? 'startContainer' : 'endContainer'] = container;
  				bookmark[start ? 'startOffset' : 'endOffset'] = offset;
  			}
  
  			restoreEndPoint(true);
  			restoreEndPoint();
  
  			var rng = dom.createRng();
  
  			rng.setStart(bookmark.startContainer, bookmark.startOffset);
  
  			if (bookmark.endContainer) {
  				rng.setEnd(bookmark.endContainer, bookmark.endOffset);
  			}
  
  			selection.setRng(rng);
  		}
  
  		function createNewTextBlock(contentNode, blockName) {
  			var node, textBlock, fragment = dom.createFragment(), hasContentNode;
  			var blockElements = editor.schema.getBlockElements();
  
  			if (editor.settings.forced_root_block) {
  				blockName = blockName || editor.settings.forced_root_block;
  			}
  
  			if (blockName) {
  				textBlock = dom.create(blockName);
  
  				if (textBlock.tagName === editor.settings.forced_root_block) {
  					dom.setAttribs(textBlock, editor.settings.forced_root_block_attrs);
  				}
  
  				fragment.appendChild(textBlock);
  			}
  
  			if (contentNode) {
  				while ((node = contentNode.firstChild)) {
  					var nodeName = node.nodeName;
  
  					if (!hasContentNode && (nodeName != 'SPAN' || node.getAttribute('data-mce-type') != 'bookmark')) {
  						hasContentNode = true;
  					}
  
  					if (blockElements[nodeName]) {
  						fragment.appendChild(node);
  						textBlock = null;
  					} else {
  						if (blockName) {
  							if (!textBlock) {
  								textBlock = dom.create(blockName);
  								fragment.appendChild(textBlock);
  							}
  
  							textBlock.appendChild(node);
  						} else {
  							fragment.appendChild(node);
  						}
  					}
  				}
  			}
  
  			if (!editor.settings.forced_root_block) {
  				fragment.appendChild(dom.create('br'));
  			} else {
  				// BR is needed in empty blocks on non IE browsers
  				if (!hasContentNode && (!tinymce.Env.ie || tinymce.Env.ie > 10)) {
  					textBlock.appendChild(dom.create('br', {'data-mce-bogus': '1'}));
  				}
  			}
  
  			return fragment;
  		}
  
  		function getSelectedListItems() {
  			return tinymce.grep(selection.getSelectedBlocks(), function(block) {
  				return /^(LI|DT|DD)$/.test(block.nodeName);
  			});
  		}
  
  		function splitList(ul, li, newBlock) {
  			var tmpRng, fragment;
  
  			var bookmarks = dom.select('span[data-mce-type="bookmark"]', ul);
  
  			newBlock = newBlock || createNewTextBlock(li);
  			tmpRng = dom.createRng();
  			tmpRng.setStartAfter(li);
  			tmpRng.setEndAfter(ul);
  			fragment = tmpRng.extractContents();
  
  			if (!dom.isEmpty(fragment)) {
  				dom.insertAfter(fragment, ul);
  			}
  
  			dom.insertAfter(newBlock, ul);
  
  			if (dom.isEmpty(li.parentNode)) {
  				tinymce.each(bookmarks, function(node) {
  					li.parentNode.parentNode.insertBefore(node, li.parentNode);
  				});
  
  				dom.remove(li.parentNode);
  			}
  
  			dom.remove(li);
  		}
  
  		function mergeWithAdjacentLists(listBlock) {
  			var sibling, node;
  
  			sibling = listBlock.nextSibling;
  			if (sibling && isListNode(sibling) && sibling.nodeName == listBlock.nodeName) {
  				while ((node = sibling.firstChild)) {
  					listBlock.appendChild(node);
  				}
  
  				dom.remove(sibling);
  			}
  
  			sibling = listBlock.previousSibling;
  			if (sibling && isListNode(sibling) && sibling.nodeName == listBlock.nodeName) {
  				while ((node = sibling.firstChild)) {
  					listBlock.insertBefore(node, listBlock.firstChild);
  				}
  
  				dom.remove(sibling);
  			}
  		}
  
  		/**
  		 * Normalizes the all lists in the specified element.
  		 */
  		function normalizeList(element) {
  			tinymce.each(tinymce.grep(dom.select('ol,ul', element)), function(ul) {
  				var sibling, parentNode = ul.parentNode;
  
  				// Move UL/OL to previous LI if it's the only child of a LI
  				if (parentNode.nodeName == 'LI' && parentNode.firstChild == ul) {
  					sibling = parentNode.previousSibling;
  					if (sibling && sibling.nodeName == 'LI') {
  						sibling.appendChild(ul);
  
  						if (dom.isEmpty(parentNode)) {
  							dom.remove(parentNode);
  						}
  					}
  				}
  
  				// Append OL/UL to previous LI if it's in a parent OL/UL i.e. old HTML4
  				if (isListNode(parentNode)) {
  					sibling = parentNode.previousSibling;
  					if (sibling && sibling.nodeName == 'LI') {
  						sibling.appendChild(ul);
  					}
  				}
  			});
  		}
  
  		function outdent(li) {
  			var ul = li.parentNode, ulParent = ul.parentNode, newBlock;
  
  			function removeEmptyLi(li) {
  				if (dom.isEmpty(li)) {
  					dom.remove(li);
  				}
  			}
  
  			if (li.nodeName == 'DD') {
  				dom.rename(li, 'DT');
  				return true;
  			}
  
  			if (isFirstChild(li) && isLastChild(li)) {
  				if (ulParent.nodeName == "LI") {
  					dom.insertAfter(li, ulParent);
  					removeEmptyLi(ulParent);
  					dom.remove(ul);
  				} else if (isListNode(ulParent)) {
  					dom.remove(ul, true);
  				} else {
  					ulParent.insertBefore(createNewTextBlock(li), ul);
  					dom.remove(ul);
  				}
  
  				return true;
  			} else if (isFirstChild(li)) {
  				if (ulParent.nodeName == "LI") {
  					dom.insertAfter(li, ulParent);
  					li.appendChild(ul);
  					removeEmptyLi(ulParent);
  				} else if (isListNode(ulParent)) {
  					ulParent.insertBefore(li, ul);
  				} else {
  					ulParent.insertBefore(createNewTextBlock(li), ul);
  					dom.remove(li);
  				}
  
  				return true;
  			} else if (isLastChild(li)) {
  				if (ulParent.nodeName == "LI") {
  					dom.insertAfter(li, ulParent);
  				} else if (isListNode(ulParent)) {
  					dom.insertAfter(li, ul);
  				} else {
  					dom.insertAfter(createNewTextBlock(li), ul);
  					dom.remove(li);
  				}
  
  				return true;
  			} else {
  				if (ulParent.nodeName == 'LI') {
  					ul = ulParent;
  					newBlock = createNewTextBlock(li, 'LI');
  				} else if (isListNode(ulParent)) {
  					newBlock = createNewTextBlock(li, 'LI');
  				} else {
  					newBlock = createNewTextBlock(li);
  				}
  
  				splitList(ul, li, newBlock);
  				normalizeList(ul.parentNode);
  
  				return true;
  			}
  
  			return false;
  		}
  
  		function indent(li) {
  			var sibling, newList;
  
  			function mergeLists(from, to) {
  				var node;
  
  				if (isListNode(from)) {
  					while ((node = li.lastChild.firstChild)) {
  						to.appendChild(node);
  					}
  
  					dom.remove(from);
  				}
  			}
  
  			if (li.nodeName == 'DT') {
  				dom.rename(li, 'DD');
  				return true;
  			}
  
  			sibling = li.previousSibling;
  
  			if (sibling && isListNode(sibling)) {
  				sibling.appendChild(li);
  				return true;
  			}
  
  			if (sibling && sibling.nodeName == 'LI' && isListNode(sibling.lastChild)) {
  				sibling.lastChild.appendChild(li);
  				mergeLists(li.lastChild, sibling.lastChild);
  				return true;
  			}
  
  			sibling = li.nextSibling;
  
  			if (sibling && isListNode(sibling)) {
  				sibling.insertBefore(li, sibling.firstChild);
  				return true;
  			}
  
  			if (sibling && sibling.nodeName == 'LI' && isListNode(li.lastChild)) {
  				return false;
  			}
  
  			sibling = li.previousSibling;
  			if (sibling && sibling.nodeName == 'LI') {
  				newList = dom.create(li.parentNode.nodeName);
  				sibling.appendChild(newList);
  				newList.appendChild(li);
  				mergeLists(li.lastChild, newList);
  				return true;
  			}
  
  			return false;
  		}
  
  		function indentSelection() {
  			var listElements = getSelectedListItems();
  
  			if (listElements.length) {
  				var bookmark = createBookmark(selection.getRng(true));
  
  				for (var i = 0; i < listElements.length; i++) {
  					if (!indent(listElements[i]) && i === 0) {
  						break;
  					}
  				}
  
  				moveToBookmark(bookmark);
  				editor.nodeChanged();
  
  				return true;
  			}
  		}
  
  		function outdentSelection() {
  			var listElements = getSelectedListItems();
  
  			if (listElements.length) {
  				var bookmark = createBookmark(selection.getRng(true));
  				var i, y, root = editor.getBody();
  
  				i = listElements.length;
  				while (i--) {
  					var node = listElements[i].parentNode;
  
  					while (node && node != root) {
  						y = listElements.length;
  						while (y--) {
  							if (listElements[y] === node) {
  								listElements.splice(i, 1);
  								break;
  							}
  						}
  
  						node = node.parentNode;
  					}
  				}
  
  				for (i = 0; i < listElements.length; i++) {
  					if (!outdent(listElements[i]) && i === 0) {
  						break;
  					}
  				}
  
  				moveToBookmark(bookmark);
  				editor.nodeChanged();
  
  				return true;
  			}
  		}
  
  		function applyList(listName) {
  			var rng = selection.getRng(true), bookmark = createBookmark(rng), listItemName = 'LI';
  
  			listName = listName.toUpperCase();
  
  			if (listName == 'DL') {
  				listItemName = 'DT';
  			}
  
  			function getSelectedTextBlocks() {
  				var textBlocks = [], root = editor.getBody();
  
  				function getEndPointNode(start) {
  					var container, offset;
  
  					container = rng[start ? 'startContainer' : 'endContainer'];
  					offset = rng[start ? 'startOffset' : 'endOffset'];
  
  					// Resolve node index
  					if (container.nodeType == 1) {
  						container = container.childNodes[Math.min(offset, container.childNodes.length - 1)] || container;
  					}
  
  					while (container.parentNode != root) {
  						if (isTextBlock(container)) {
  							return container;
  						}
  
  						if (/^(TD|TH)$/.test(container.parentNode.nodeName)) {
  							return container;
  						}
  
  						container = container.parentNode;
  					}
  
  					return container;
  				}
  
  				var startNode = getEndPointNode(true);
  				var endNode = getEndPointNode();
  				var block, siblings = [];
  
  				for (var node = startNode; node; node = node.nextSibling) {
  					siblings.push(node);
  
  					if (node == endNode) {
  						break;
  					}
  				}
  
  				tinymce.each(siblings, function(node) {
  					if (isTextBlock(node)) {
  						textBlocks.push(node);
  						block = null;
  						return;
  					}
  
  					if (dom.isBlock(node) || node.nodeName == 'BR') {
  						if (node.nodeName == 'BR') {
  							dom.remove(node);
  						}
  
  						block = null;
  						return;
  					}
  
  					var nextSibling = node.nextSibling;
  					if (tinymce.dom.BookmarkManager.isBookmarkNode(node)) {
  						if (isTextBlock(nextSibling) || (!nextSibling && node.parentNode == root)) {
  							block = null;
  							return;
  						}
  					}
  
  					if (!block) {
  						block = dom.create('p');
  						node.parentNode.insertBefore(block, node);
  						textBlocks.push(block);
  					}
  
  					block.appendChild(node);
  				});
  
  				return textBlocks;
  			}
  
  			tinymce.each(getSelectedTextBlocks(), function(block) {
  				var listBlock, sibling;
  
  				sibling = block.previousSibling;
  				if (sibling && isListNode(sibling) && sibling.nodeName == listName) {
  					listBlock = sibling;
  					block = dom.rename(block, listItemName);
  					sibling.appendChild(block);
  				} else {
  					listBlock = dom.create(listName);
  					block.parentNode.insertBefore(listBlock, block);
  					listBlock.appendChild(block);
  					block = dom.rename(block, listItemName);
  				}
  
  				mergeWithAdjacentLists(listBlock);
  			});
  
  			moveToBookmark(bookmark);
  		}
  
  		function removeList() {
  			var bookmark = createBookmark(selection.getRng(true)), root = editor.getBody();
  
  			tinymce.each(getSelectedListItems(), function(li) {
  				var node, rootList;
  
  				if (dom.isEmpty(li)) {
  					outdent(li);
  					return;
  				}
  
  				for (node = li; node && node != root; node = node.parentNode) {
  					if (isListNode(node)) {
  						rootList = node;
  					}
  				}
  
  				splitList(rootList, li);
  			});
  
  			moveToBookmark(bookmark);
  		}
  
  		function toggleList(listName) {
  			var parentList = dom.getParent(selection.getStart(), 'OL,UL,DL');
  
  			if (parentList) {
  				if (parentList.nodeName == listName) {
  					removeList(listName);
  				} else {
  					var bookmark = createBookmark(selection.getRng(true));
  					mergeWithAdjacentLists(dom.rename(parentList, listName));
  					moveToBookmark(bookmark);
  				}
  			} else {
  				applyList(listName);
  			}
  		}
  
  		function queryListCommandState(listName) {
  			return function() {
  				var parentList = dom.getParent(editor.selection.getStart(), 'UL,OL,DL');
  
  				return parentList && parentList.nodeName == listName;
  			};
  		}
  
  		self.backspaceDelete = function(isForward) {
  			function findNextCaretContainer(rng, isForward) {
  				var node = rng.startContainer, offset = rng.startOffset;
  				var nonEmptyBlocks, walker;
  
  				if (node.nodeType == 3 && (isForward ? offset < node.data.length : offset > 0)) {
  					return node;
  				}
  
  				nonEmptyBlocks = editor.schema.getNonEmptyElements();
  				walker = new tinymce.dom.TreeWalker(rng.startContainer);
  
  				while ((node = walker[isForward ? 'next' : 'prev']())) {
  					if (node.nodeName == 'LI' && !node.hasChildNodes()) {
  						return node;
  					}
  
  					if (nonEmptyBlocks[node.nodeName]) {
  						return node;
  					}
  
  					if (node.nodeType == 3 && node.data.length > 0) {
  						return node;
  					}
  				}
  			}
  
  			function mergeLiElements(fromElm, toElm) {
  				var node, listNode, ul = fromElm.parentNode;
  
  				if (isListNode(toElm.lastChild)) {
  					listNode = toElm.lastChild;
  				}
  
  				node = toElm.lastChild;
  				if (node && node.nodeName == 'BR' && fromElm.hasChildNodes()) {
  					dom.remove(node);
  				}
  
  				if (dom.isEmpty(toElm)) {
  					dom.$(toElm).empty();
  				}
  
  				if (!dom.isEmpty(fromElm)) {
  					while ((node = fromElm.firstChild)) {
  						toElm.appendChild(node);
  					}
  				}
  
  				if (listNode) {
  					toElm.appendChild(listNode);
  				}
  
  				dom.remove(fromElm);
  
  				if (dom.isEmpty(ul)) {
  					dom.remove(ul);
  				}
  			}
  
  			if (selection.isCollapsed()) {
  				var li = dom.getParent(selection.getStart(), 'LI');
  
  				if (li) {
  					var rng = selection.getRng(true);
  					var otherLi = dom.getParent(findNextCaretContainer(rng, isForward), 'LI');
  
  					if (otherLi && otherLi != li) {
  						var bookmark = createBookmark(rng);
  
  						if (isForward) {
  							mergeLiElements(otherLi, li);
  						} else {
  							mergeLiElements(li, otherLi);
  						}
  
  						moveToBookmark(bookmark);
  
  						return true;
  					} else if (!otherLi) {
  						if (!isForward && removeList(li.parentNode.nodeName)) {
  							return true;
  						}
  					}
  				}
  			}
  		};
  
  		editor.addCommand('Indent', function() {
  			if (!indentSelection()) {
  				return true;
  			}
  		});
  
  		editor.addCommand('Outdent', function() {
  			if (!outdentSelection()) {
  				return true;
  			}
  		});
  
  		editor.addCommand('InsertUnorderedList', function() {
  			toggleList('UL');
  		});
  
  		editor.addCommand('InsertOrderedList', function() {
  			toggleList('OL');
  		});
  
  		editor.addCommand('InsertDefinitionList', function() {
  			toggleList('DL');
  		});
  
  		editor.addQueryStateHandler('InsertUnorderedList', queryListCommandState('UL'));
  		editor.addQueryStateHandler('InsertOrderedList', queryListCommandState('OL'));
  		editor.addQueryStateHandler('InsertDefinitionList', queryListCommandState('DL'));
  
  		editor.on('keydown', function(e) {
  			// Check for tab but not ctrl/cmd+tab since it switches browser tabs
  			if (e.keyCode != 9 || tinymce.util.VK.metaKeyPressed(e)) {
  				return;
  			}
  
  			if (editor.dom.getParent(editor.selection.getStart(), 'LI,DT,DD')) {
  				e.preventDefault();
  
  				if (e.shiftKey) {
  					outdentSelection();
  				} else {
  					indentSelection();
  				}
  			}
  		});
  	});
  
  	editor.addButton('indent', {
  		icon: 'indent',
  		title: 'Increase indent',
  		cmd: 'Indent',
  		onPostRender: function() {
  			var ctrl = this;
  
  			editor.on('nodechange', function() {
  				var blocks = editor.selection.getSelectedBlocks();
  				var disable = false;
  
  				for (var i = 0, l = blocks.length; !disable && i < l; i++) {
  					var tag = blocks[i].nodeName;
  
  					disable = (tag == 'LI' && isFirstChild(blocks[i]) || tag == 'UL' || tag == 'OL' || tag == 'DD');
  				}
  
  				ctrl.disabled(disable);
  			});
  		}
  	});
  
  	editor.on('keydown', function(e) {
  		if (e.keyCode == tinymce.util.VK.BACKSPACE) {
  			if (self.backspaceDelete()) {
  				e.preventDefault();
  			}
  		} else if (e.keyCode == tinymce.util.VK.DELETE) {
  			if (self.backspaceDelete(true)) {
  				e.preventDefault();
  			}
  		}
  	});
  });
  