src/pyams_skin/resources/js/ext/tinymce/dev/classes/EnterKey.js
changeset 69 a361355b55c7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/resources/js/ext/tinymce/dev/classes/EnterKey.js	Wed Jun 17 10:00:10 2015 +0200
@@ -0,0 +1,638 @@
+/**
+ * EnterKey.js
+ *
+ * Copyright, Moxiecode Systems AB
+ * Released under LGPL License.
+ *
+ * License: http://www.tinymce.com/license
+ * Contributing: http://www.tinymce.com/contributing
+ */
+
+/**
+ * Contains logic for handling the enter key to split/generate block elements.
+ */
+define("tinymce/EnterKey", [
+	"tinymce/dom/TreeWalker",
+	"tinymce/dom/RangeUtils",
+	"tinymce/Env"
+], function(TreeWalker, RangeUtils, Env) {
+	var isIE = Env.ie && Env.ie < 11;
+
+	return function(editor) {
+		var dom = editor.dom, selection = editor.selection, settings = editor.settings;
+		var undoManager = editor.undoManager, schema = editor.schema, nonEmptyElementsMap = schema.getNonEmptyElements(),
+			moveCaretBeforeOnEnterElementsMap = schema.getMoveCaretBeforeOnEnterElements();
+
+		function handleEnterKey(evt) {
+			var rng, tmpRng, editableRoot, container, offset, parentBlock, documentMode, shiftKey,
+				newBlock, fragment, containerBlock, parentBlockName, containerBlockName, newBlockName, isAfterLastNodeInContainer;
+
+			// Returns true if the block can be split into two blocks or not
+			function canSplitBlock(node) {
+				return node &&
+					dom.isBlock(node) &&
+					!/^(TD|TH|CAPTION|FORM)$/.test(node.nodeName) &&
+					!/^(fixed|absolute)/i.test(node.style.position) &&
+					dom.getContentEditable(node) !== "true";
+			}
+
+			// Renders empty block on IE
+			function renderBlockOnIE(block) {
+				var oldRng;
+
+				if (dom.isBlock(block)) {
+					oldRng = selection.getRng();
+					block.appendChild(dom.create('span', null, '\u00a0'));
+					selection.select(block);
+					block.lastChild.outerHTML = '';
+					selection.setRng(oldRng);
+				}
+			}
+
+			// Remove the first empty inline element of the block so this: <p><b><em></em></b>x</p> becomes this: <p>x</p>
+			function trimInlineElementsOnLeftSideOfBlock(block) {
+				var node = block, firstChilds = [], i;
+
+				if (!node) {
+					return;
+				}
+
+				// Find inner most first child ex: <p><i><b>*</b></i></p>
+				while ((node = node.firstChild)) {
+					if (dom.isBlock(node)) {
+						return;
+					}
+
+					if (node.nodeType == 1 && !nonEmptyElementsMap[node.nodeName.toLowerCase()]) {
+						firstChilds.push(node);
+					}
+				}
+
+				i = firstChilds.length;
+				while (i--) {
+					node = firstChilds[i];
+					if (!node.hasChildNodes() || (node.firstChild == node.lastChild && node.firstChild.nodeValue === '')) {
+						dom.remove(node);
+					} else {
+						// Remove <a> </a> see #5381
+						if (node.nodeName == "A" && (node.innerText || node.textContent) === ' ') {
+							dom.remove(node);
+						}
+					}
+				}
+			}
+
+			// Moves the caret to a suitable position within the root for example in the first non
+			// pure whitespace text node or before an image
+			function moveToCaretPosition(root) {
+				var walker, node, rng, lastNode = root, tempElm;
+				function firstNonWhiteSpaceNodeSibling(node) {
+					while (node) {
+						if (node.nodeType == 1 || (node.nodeType == 3 && node.data && /[\r\n\s]/.test(node.data))) {
+							return node;
+						}
+
+						node = node.nextSibling;
+					}
+				}
+
+				if (!root) {
+					return;
+				}
+
+				// Old IE versions doesn't properly render blocks with br elements in them
+				// For example <p><br></p> wont be rendered correctly in a contentEditable area
+				// until you remove the br producing <p></p>
+				if (Env.ie && Env.ie < 9 && parentBlock && parentBlock.firstChild) {
+					if (parentBlock.firstChild == parentBlock.lastChild && parentBlock.firstChild.tagName == 'BR') {
+						dom.remove(parentBlock.firstChild);
+					}
+				}
+
+				if (/^(LI|DT|DD)$/.test(root.nodeName)) {
+					var firstChild = firstNonWhiteSpaceNodeSibling(root.firstChild);
+
+					if (firstChild && /^(UL|OL|DL)$/.test(firstChild.nodeName)) {
+						root.insertBefore(dom.doc.createTextNode('\u00a0'), root.firstChild);
+					}
+				}
+
+				rng = dom.createRng();
+
+				// Normalize whitespace to remove empty text nodes. Fix for: #6904
+				// Gecko will be able to place the caret in empty text nodes but it won't render propery
+				// Older IE versions will sometimes crash so for now ignore all IE versions
+				if (!Env.ie) {
+					root.normalize();
+				}
+
+				if (root.hasChildNodes()) {
+					walker = new TreeWalker(root, root);
+
+					while ((node = walker.current())) {
+						if (node.nodeType == 3) {
+							rng.setStart(node, 0);
+							rng.setEnd(node, 0);
+							break;
+						}
+
+						if (moveCaretBeforeOnEnterElementsMap[node.nodeName.toLowerCase()]) {
+							rng.setStartBefore(node);
+							rng.setEndBefore(node);
+							break;
+						}
+
+						lastNode = node;
+						node = walker.next();
+					}
+
+					if (!node) {
+						rng.setStart(lastNode, 0);
+						rng.setEnd(lastNode, 0);
+					}
+				} else {
+					if (root.nodeName == 'BR') {
+						if (root.nextSibling && dom.isBlock(root.nextSibling)) {
+							// Trick on older IE versions to render the caret before the BR between two lists
+							if (!documentMode || documentMode < 9) {
+								tempElm = dom.create('br');
+								root.parentNode.insertBefore(tempElm, root);
+							}
+
+							rng.setStartBefore(root);
+							rng.setEndBefore(root);
+						} else {
+							rng.setStartAfter(root);
+							rng.setEndAfter(root);
+						}
+					} else {
+						rng.setStart(root, 0);
+						rng.setEnd(root, 0);
+					}
+				}
+
+				selection.setRng(rng);
+
+				// Remove tempElm created for old IE:s
+				dom.remove(tempElm);
+				selection.scrollIntoView(root);
+			}
+
+			function setForcedBlockAttrs(node) {
+				var forcedRootBlockName = settings.forced_root_block;
+
+				if (forcedRootBlockName && forcedRootBlockName.toLowerCase() === node.tagName.toLowerCase()) {
+					dom.setAttribs(node, settings.forced_root_block_attrs);
+				}
+			}
+
+			// Creates a new block element by cloning the current one or creating a new one if the name is specified
+			// This function will also copy any text formatting from the parent block and add it to the new one
+			function createNewBlock(name) {
+				var node = container, block, clonedNode, caretNode, textInlineElements = schema.getTextInlineElements();
+
+				if (name || parentBlockName == "TABLE") {
+					block = dom.create(name || newBlockName);
+					setForcedBlockAttrs(block);
+				} else {
+					block = parentBlock.cloneNode(false);
+				}
+
+				caretNode = block;
+
+				// Clone any parent styles
+				if (settings.keep_styles !== false) {
+					do {
+						if (textInlineElements[node.nodeName]) {
+							// Never clone a caret containers
+							if (node.id == '_mce_caret') {
+								continue;
+							}
+
+							clonedNode = node.cloneNode(false);
+							dom.setAttrib(clonedNode, 'id', ''); // Remove ID since it needs to be document unique
+
+							if (block.hasChildNodes()) {
+								clonedNode.appendChild(block.firstChild);
+								block.appendChild(clonedNode);
+							} else {
+								caretNode = clonedNode;
+								block.appendChild(clonedNode);
+							}
+						}
+					} while ((node = node.parentNode));
+				}
+
+				// BR is needed in empty blocks on non IE browsers
+				if (!isIE) {
+					caretNode.innerHTML = '<br data-mce-bogus="1">';
+				}
+
+				return block;
+			}
+
+			// Returns true/false if the caret is at the start/end of the parent block element
+			function isCaretAtStartOrEndOfBlock(start) {
+				var walker, node, name;
+
+				// Caret is in the middle of a text node like "a|b"
+				if (container.nodeType == 3 && (start ? offset > 0 : offset < container.nodeValue.length)) {
+					return false;
+				}
+
+				// If after the last element in block node edge case for #5091
+				if (container.parentNode == parentBlock && isAfterLastNodeInContainer && !start) {
+					return true;
+				}
+
+				// If the caret if before the first element in parentBlock
+				if (start && container.nodeType == 1 && container == parentBlock.firstChild) {
+					return true;
+				}
+
+				// Caret can be before/after a table
+				if (container.nodeName === "TABLE" || (container.previousSibling && container.previousSibling.nodeName == "TABLE")) {
+					return (isAfterLastNodeInContainer && !start) || (!isAfterLastNodeInContainer && start);
+				}
+
+				// Walk the DOM and look for text nodes or non empty elements
+				walker = new TreeWalker(container, parentBlock);
+
+				// If caret is in beginning or end of a text block then jump to the next/previous node
+				if (container.nodeType == 3) {
+					if (start && offset === 0) {
+						walker.prev();
+					} else if (!start && offset == container.nodeValue.length) {
+						walker.next();
+					}
+				}
+
+				while ((node = walker.current())) {
+					if (node.nodeType === 1) {
+						// Ignore bogus elements
+						if (!node.getAttribute('data-mce-bogus')) {
+							// Keep empty elements like <img /> <input /> but not trailing br:s like <p>text|<br></p>
+							name = node.nodeName.toLowerCase();
+							if (nonEmptyElementsMap[name] && name !== 'br') {
+								return false;
+							}
+						}
+					} else if (node.nodeType === 3 && !/^[ \t\r\n]*$/.test(node.nodeValue)) {
+						return false;
+					}
+
+					if (start) {
+						walker.prev();
+					} else {
+						walker.next();
+					}
+				}
+
+				return true;
+			}
+
+			// Wraps any text nodes or inline elements in the specified forced root block name
+			function wrapSelfAndSiblingsInDefaultBlock(container, offset) {
+				var newBlock, parentBlock, startNode, node, next, rootBlockName, blockName = newBlockName || 'P';
+
+				// Not in a block element or in a table cell or caption
+				parentBlock = dom.getParent(container, dom.isBlock);
+				rootBlockName = editor.getBody().nodeName.toLowerCase();
+				if (!parentBlock || !canSplitBlock(parentBlock)) {
+					parentBlock = parentBlock || editableRoot;
+
+					if (!parentBlock.hasChildNodes()) {
+						newBlock = dom.create(blockName);
+						setForcedBlockAttrs(newBlock);
+						parentBlock.appendChild(newBlock);
+						rng.setStart(newBlock, 0);
+						rng.setEnd(newBlock, 0);
+						return newBlock;
+					}
+
+					// Find parent that is the first child of parentBlock
+					node = container;
+					while (node.parentNode != parentBlock) {
+						node = node.parentNode;
+					}
+
+					// Loop left to find start node start wrapping at
+					while (node && !dom.isBlock(node)) {
+						startNode = node;
+						node = node.previousSibling;
+					}
+
+					if (startNode && schema.isValidChild(rootBlockName, blockName.toLowerCase())) {
+						newBlock = dom.create(blockName);
+						setForcedBlockAttrs(newBlock);
+						startNode.parentNode.insertBefore(newBlock, startNode);
+
+						// Start wrapping until we hit a block
+						node = startNode;
+						while (node && !dom.isBlock(node)) {
+							next = node.nextSibling;
+							newBlock.appendChild(node);
+							node = next;
+						}
+
+						// Restore range to it's past location
+						rng.setStart(container, offset);
+						rng.setEnd(container, offset);
+					}
+				}
+
+				return container;
+			}
+
+			// Inserts a block or br before/after or in the middle of a split list of the LI is empty
+			function handleEmptyListItem() {
+				function isFirstOrLastLi(first) {
+					var node = containerBlock[first ? 'firstChild' : 'lastChild'];
+
+					// Find first/last element since there might be whitespace there
+					while (node) {
+						if (node.nodeType == 1) {
+							break;
+						}
+
+						node = node[first ? 'nextSibling' : 'previousSibling'];
+					}
+
+					return node === parentBlock;
+				}
+
+				function getContainerBlock() {
+					var containerBlockParent = containerBlock.parentNode;
+
+					if (/^(LI|DT|DD)$/.test(containerBlockParent.nodeName)) {
+						return containerBlockParent;
+					}
+
+					return containerBlock;
+				}
+
+				// Check if we are in an nested list
+				var containerBlockParentName = containerBlock.parentNode.nodeName;
+				if (/^(OL|UL|LI)$/.test(containerBlockParentName)) {
+					newBlockName = 'LI';
+				}
+
+				newBlock = newBlockName ? createNewBlock(newBlockName) : dom.create('BR');
+
+				if (isFirstOrLastLi(true) && isFirstOrLastLi()) {
+					if (containerBlockParentName == 'LI') {
+						// Nested list is inside a LI
+						dom.insertAfter(newBlock, getContainerBlock());
+					} else {
+						// Is first and last list item then replace the OL/UL with a text block
+						dom.replace(newBlock, containerBlock);
+					}
+				} else if (isFirstOrLastLi(true)) {
+					if (containerBlockParentName == 'LI') {
+						// List nested in an LI then move the list to a new sibling LI
+						dom.insertAfter(newBlock, getContainerBlock());
+						newBlock.appendChild(dom.doc.createTextNode(' ')); // Needed for IE so the caret can be placed
+						newBlock.appendChild(containerBlock);
+					} else {
+						// First LI in list then remove LI and add text block before list
+						containerBlock.parentNode.insertBefore(newBlock, containerBlock);
+					}
+				} else if (isFirstOrLastLi()) {
+					// Last LI in list then remove LI and add text block after list
+					dom.insertAfter(newBlock, getContainerBlock());
+					renderBlockOnIE(newBlock);
+				} else {
+					// Middle LI in list the split the list and insert a text block in the middle
+					// Extract after fragment and insert it after the current block
+					containerBlock = getContainerBlock();
+					tmpRng = rng.cloneRange();
+					tmpRng.setStartAfter(parentBlock);
+					tmpRng.setEndAfter(containerBlock);
+					fragment = tmpRng.extractContents();
+
+					if (newBlockName == 'LI' && fragment.firstChild.nodeName == 'LI') {
+						newBlock = fragment.firstChild;
+						dom.insertAfter(fragment, containerBlock);
+					} else {
+						dom.insertAfter(fragment, containerBlock);
+						dom.insertAfter(newBlock, containerBlock);
+					}
+				}
+
+				dom.remove(parentBlock);
+				moveToCaretPosition(newBlock);
+				undoManager.add();
+			}
+
+			// Inserts a BR element if the forced_root_block option is set to false or empty string
+			function insertBr() {
+				editor.execCommand("InsertLineBreak", false, evt);
+			}
+
+			// Trims any linebreaks at the beginning of node user for example when pressing enter in a PRE element
+			function trimLeadingLineBreaks(node) {
+				do {
+					if (node.nodeType === 3) {
+						node.nodeValue = node.nodeValue.replace(/^[\r\n]+/, '');
+					}
+
+					node = node.firstChild;
+				} while (node);
+			}
+
+			function getEditableRoot(node) {
+				var root = dom.getRoot(), parent, editableRoot;
+
+				// Get all parents until we hit a non editable parent or the root
+				parent = node;
+				while (parent !== root && dom.getContentEditable(parent) !== "false") {
+					if (dom.getContentEditable(parent) === "true") {
+						editableRoot = parent;
+					}
+
+					parent = parent.parentNode;
+				}
+
+				return parent !== root ? editableRoot : root;
+			}
+
+			// Adds a BR at the end of blocks that only contains an IMG or INPUT since
+			// these might be floated and then they won't expand the block
+			function addBrToBlockIfNeeded(block) {
+				var lastChild;
+
+				// IE will render the blocks correctly other browsers needs a BR
+				if (!isIE) {
+					block.normalize(); // Remove empty text nodes that got left behind by the extract
+
+					// Check if the block is empty or contains a floated last child
+					lastChild = block.lastChild;
+					if (!lastChild || (/^(left|right)$/gi.test(dom.getStyle(lastChild, 'float', true)))) {
+						dom.add(block, 'br');
+					}
+				}
+			}
+
+			rng = selection.getRng(true);
+
+			// Event is blocked by some other handler for example the lists plugin
+			if (evt.isDefaultPrevented()) {
+				return;
+			}
+
+			// Delete any selected contents
+			if (!rng.collapsed) {
+				editor.execCommand('Delete');
+				return;
+			}
+
+			// Setup range items and newBlockName
+			new RangeUtils(dom).normalize(rng);
+			container = rng.startContainer;
+			offset = rng.startOffset;
+			newBlockName = (settings.force_p_newlines ? 'p' : '') || settings.forced_root_block;
+			newBlockName = newBlockName ? newBlockName.toUpperCase() : '';
+			documentMode = dom.doc.documentMode;
+			shiftKey = evt.shiftKey;
+
+			// Resolve node index
+			if (container.nodeType == 1 && container.hasChildNodes()) {
+				isAfterLastNodeInContainer = offset > container.childNodes.length - 1;
+
+				container = container.childNodes[Math.min(offset, container.childNodes.length - 1)] || container;
+				if (isAfterLastNodeInContainer && container.nodeType == 3) {
+					offset = container.nodeValue.length;
+				} else {
+					offset = 0;
+				}
+			}
+
+			// Get editable root node normaly the body element but sometimes a div or span
+			editableRoot = getEditableRoot(container);
+
+			// If there is no editable root then enter is done inside a contentEditable false element
+			if (!editableRoot) {
+				return;
+			}
+
+			undoManager.beforeChange();
+
+			// If editable root isn't block nor the root of the editor
+			if (!dom.isBlock(editableRoot) && editableRoot != dom.getRoot()) {
+				if (!newBlockName || shiftKey) {
+					insertBr();
+				}
+
+				return;
+			}
+
+			// Wrap the current node and it's sibling in a default block if it's needed.
+			// for example this <td>text|<b>text2</b></td> will become this <td><p>text|<b>text2</p></b></td>
+			// This won't happen if root blocks are disabled or the shiftKey is pressed
+			if ((newBlockName && !shiftKey) || (!newBlockName && shiftKey)) {
+				container = wrapSelfAndSiblingsInDefaultBlock(container, offset);
+			}
+
+			// Find parent block and setup empty block paddings
+			parentBlock = dom.getParent(container, dom.isBlock);
+			containerBlock = parentBlock ? dom.getParent(parentBlock.parentNode, dom.isBlock) : null;
+
+			// Setup block names
+			parentBlockName = parentBlock ? parentBlock.nodeName.toUpperCase() : ''; // IE < 9 & HTML5
+			containerBlockName = containerBlock ? containerBlock.nodeName.toUpperCase() : ''; // IE < 9 & HTML5
+
+			// Enter inside block contained within a LI then split or insert before/after LI
+			if (containerBlockName == 'LI' && !evt.ctrlKey) {
+				parentBlock = containerBlock;
+				parentBlockName = containerBlockName;
+			}
+
+			// Handle enter in list item
+			if (/^(LI|DT|DD)$/.test(parentBlockName)) {
+				if (!newBlockName && shiftKey) {
+					insertBr();
+					return;
+				}
+
+				// Handle enter inside an empty list item
+				if (dom.isEmpty(parentBlock)) {
+					handleEmptyListItem();
+					return;
+				}
+			}
+
+			// Don't split PRE tags but insert a BR instead easier when writing code samples etc
+			if (parentBlockName == 'PRE' && settings.br_in_pre !== false) {
+				if (!shiftKey) {
+					insertBr();
+					return;
+				}
+			} else {
+				// If no root block is configured then insert a BR by default or if the shiftKey is pressed
+				if ((!newBlockName && !shiftKey && parentBlockName != 'LI') || (newBlockName && shiftKey)) {
+					insertBr();
+					return;
+				}
+			}
+
+			// If parent block is root then never insert new blocks
+			if (newBlockName && parentBlock === editor.getBody()) {
+				return;
+			}
+
+			// Default block name if it's not configured
+			newBlockName = newBlockName || 'P';
+
+			// Insert new block before/after the parent block depending on caret location
+			if (isCaretAtStartOrEndOfBlock()) {
+				// If the caret is at the end of a header we produce a P tag after it similar to Word unless we are in a hgroup
+				if (/^(H[1-6]|PRE|FIGURE)$/.test(parentBlockName) && containerBlockName != 'HGROUP') {
+					newBlock = createNewBlock(newBlockName);
+				} else {
+					newBlock = createNewBlock();
+				}
+
+				// Split the current container block element if enter is pressed inside an empty inner block element
+				if (settings.end_container_on_empty_block && canSplitBlock(containerBlock) && dom.isEmpty(parentBlock)) {
+					// Split container block for example a BLOCKQUOTE at the current blockParent location for example a P
+					newBlock = dom.split(containerBlock, parentBlock);
+				} else {
+					dom.insertAfter(newBlock, parentBlock);
+				}
+
+				moveToCaretPosition(newBlock);
+			} else if (isCaretAtStartOrEndOfBlock(true)) {
+				// Insert new block before
+				newBlock = parentBlock.parentNode.insertBefore(createNewBlock(), parentBlock);
+				renderBlockOnIE(newBlock);
+				moveToCaretPosition(parentBlock);
+			} else {
+				// Extract after fragment and insert it after the current block
+				tmpRng = rng.cloneRange();
+				tmpRng.setEndAfter(parentBlock);
+				fragment = tmpRng.extractContents();
+				trimLeadingLineBreaks(fragment);
+				newBlock = fragment.firstChild;
+				dom.insertAfter(fragment, parentBlock);
+				trimInlineElementsOnLeftSideOfBlock(newBlock);
+				addBrToBlockIfNeeded(parentBlock);
+				moveToCaretPosition(newBlock);
+			}
+
+			dom.setAttrib(newBlock, 'id', ''); // Remove ID since it needs to be document unique
+
+			// Allow custom handling of new blocks
+			editor.fire('NewBlock', {newBlock: newBlock});
+
+			undoManager.add();
+		}
+
+		editor.on('keydown', function(evt) {
+			if (evt.keyCode == 13) {
+				if (handleEnterKey(evt) !== false) {
+					evt.preventDefault();
+				}
+			}
+		});
+	};
+});
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