diff -r 000000000000 -r bca7a7e058a3 src/pyams_skin/resources/js/ext/tinymce/dev/classes/dom/RangeUtils.js --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/pyams_skin/resources/js/ext/tinymce/dev/classes/dom/RangeUtils.js Thu Feb 13 11:43:31 2020 +0100 @@ -0,0 +1,540 @@ +/** + * RangeUtils.js + * + * Copyright, Moxiecode Systems AB + * Released under LGPL License. + * + * License: http://www.tinymce.com/license + * Contributing: http://www.tinymce.com/contributing + */ + +/** + * This class contains a few utility methods for ranges. + * + * @class tinymce.dom.RangeUtils + */ +define("tinymce/dom/RangeUtils", [ + "tinymce/util/Tools", + "tinymce/dom/TreeWalker" +], function(Tools, TreeWalker) { + var each = Tools.each; + + function getEndChild(container, index) { + var childNodes = container.childNodes; + + index--; + + if (index > childNodes.length - 1) { + index = childNodes.length - 1; + } else if (index < 0) { + index = 0; + } + + return childNodes[index] || container; + } + + function RangeUtils(dom) { + /** + * Walks the specified range like object and executes the callback for each sibling collection it finds. + * + * @method walk + * @param {Object} rng Range like object. + * @param {function} callback Callback function to execute for each sibling collection. + */ + this.walk = function(rng, callback) { + var startContainer = rng.startContainer, + startOffset = rng.startOffset, + endContainer = rng.endContainer, + endOffset = rng.endOffset, + ancestor, startPoint, + endPoint, node, parent, siblings, nodes; + + // Handle table cell selection the table plugin enables + // you to fake select table cells and perform formatting actions on them + nodes = dom.select('td.mce-item-selected,th.mce-item-selected'); + if (nodes.length > 0) { + each(nodes, function(node) { + callback([node]); + }); + + return; + } + + /** + * Excludes start/end text node if they are out side the range + * + * @private + * @param {Array} nodes Nodes to exclude items from. + * @return {Array} Array with nodes excluding the start/end container if needed. + */ + function exclude(nodes) { + var node; + + // First node is excluded + node = nodes[0]; + if (node.nodeType === 3 && node === startContainer && startOffset >= node.nodeValue.length) { + nodes.splice(0, 1); + } + + // Last node is excluded + node = nodes[nodes.length - 1]; + if (endOffset === 0 && nodes.length > 0 && node === endContainer && node.nodeType === 3) { + nodes.splice(nodes.length - 1, 1); + } + + return nodes; + } + + /** + * Collects siblings + * + * @private + * @param {Node} node Node to collect siblings from. + * @param {String} name Name of the sibling to check for. + * @return {Array} Array of collected siblings. + */ + function collectSiblings(node, name, end_node) { + var siblings = []; + + for (; node && node != end_node; node = node[name]) { + siblings.push(node); + } + + return siblings; + } + + /** + * Find an end point this is the node just before the common ancestor root. + * + * @private + * @param {Node} node Node to start at. + * @param {Node} root Root/ancestor element to stop just before. + * @return {Node} Node just before the root element. + */ + function findEndPoint(node, root) { + do { + if (node.parentNode == root) { + return node; + } + + node = node.parentNode; + } while (node); + } + + function walkBoundary(start_node, end_node, next) { + var siblingName = next ? 'nextSibling' : 'previousSibling'; + + for (node = start_node, parent = node.parentNode; node && node != end_node; node = parent) { + parent = node.parentNode; + siblings = collectSiblings(node == start_node ? node : node[siblingName], siblingName); + + if (siblings.length) { + if (!next) { + siblings.reverse(); + } + + callback(exclude(siblings)); + } + } + } + + // If index based start position then resolve it + if (startContainer.nodeType == 1 && startContainer.hasChildNodes()) { + startContainer = startContainer.childNodes[startOffset]; + } + + // If index based end position then resolve it + if (endContainer.nodeType == 1 && endContainer.hasChildNodes()) { + endContainer = getEndChild(endContainer, endOffset); + } + + // Same container + if (startContainer == endContainer) { + return callback(exclude([startContainer])); + } + + // Find common ancestor and end points + ancestor = dom.findCommonAncestor(startContainer, endContainer); + + // Process left side + for (node = startContainer; node; node = node.parentNode) { + if (node === endContainer) { + return walkBoundary(startContainer, ancestor, true); + } + + if (node === ancestor) { + break; + } + } + + // Process right side + for (node = endContainer; node; node = node.parentNode) { + if (node === startContainer) { + return walkBoundary(endContainer, ancestor); + } + + if (node === ancestor) { + break; + } + } + + // Find start/end point + startPoint = findEndPoint(startContainer, ancestor) || startContainer; + endPoint = findEndPoint(endContainer, ancestor) || endContainer; + + // Walk left leaf + walkBoundary(startContainer, startPoint, true); + + // Walk the middle from start to end point + siblings = collectSiblings( + startPoint == startContainer ? startPoint : startPoint.nextSibling, + 'nextSibling', + endPoint == endContainer ? endPoint.nextSibling : endPoint + ); + + if (siblings.length) { + callback(exclude(siblings)); + } + + // Walk right leaf + walkBoundary(endContainer, endPoint); + }; + + /** + * Splits the specified range at it's start/end points. + * + * @private + * @param {Range/RangeObject} rng Range to split. + * @return {Object} Range position object. + */ + this.split = function(rng) { + var startContainer = rng.startContainer, + startOffset = rng.startOffset, + endContainer = rng.endContainer, + endOffset = rng.endOffset; + + function splitText(node, offset) { + return node.splitText(offset); + } + + // Handle single text node + if (startContainer == endContainer && startContainer.nodeType == 3) { + if (startOffset > 0 && startOffset < startContainer.nodeValue.length) { + endContainer = splitText(startContainer, startOffset); + startContainer = endContainer.previousSibling; + + if (endOffset > startOffset) { + endOffset = endOffset - startOffset; + startContainer = endContainer = splitText(endContainer, endOffset).previousSibling; + endOffset = endContainer.nodeValue.length; + startOffset = 0; + } else { + endOffset = 0; + } + } + } else { + // Split startContainer text node if needed + if (startContainer.nodeType == 3 && startOffset > 0 && startOffset < startContainer.nodeValue.length) { + startContainer = splitText(startContainer, startOffset); + startOffset = 0; + } + + // Split endContainer text node if needed + if (endContainer.nodeType == 3 && endOffset > 0 && endOffset < endContainer.nodeValue.length) { + endContainer = splitText(endContainer, endOffset).previousSibling; + endOffset = endContainer.nodeValue.length; + } + } + + return { + startContainer: startContainer, + startOffset: startOffset, + endContainer: endContainer, + endOffset: endOffset + }; + }; + + /** + * Normalizes the specified range by finding the closest best suitable caret location. + * + * @private + * @param {Range} rng Range to normalize. + * @return {Boolean} True/false if the specified range was normalized or not. + */ + this.normalize = function(rng) { + var normalized, collapsed; + + function normalizeEndPoint(start) { + var container, offset, walker, body = dom.getRoot(), node, nonEmptyElementsMap; + var directionLeft, isAfterNode; + + function hasBrBeforeAfter(node, left) { + var walker = new TreeWalker(node, dom.getParent(node.parentNode, dom.isBlock) || body); + + while ((node = walker[left ? 'prev' : 'next']())) { + if (node.nodeName === "BR") { + return true; + } + } + } + + function isPrevNode(node, name) { + return node.previousSibling && node.previousSibling.nodeName == name; + } + + // Walks the dom left/right to find a suitable text node to move the endpoint into + // It will only walk within the current parent block or body and will stop if it hits a block or a BR/IMG + function findTextNodeRelative(left, startNode) { + var walker, lastInlineElement, parentBlockContainer; + + startNode = startNode || container; + parentBlockContainer = dom.getParent(startNode.parentNode, dom.isBlock) || body; + + // Lean left before the BR element if it's the only BR within a block element. Gecko bug: #6680 + // This:


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becomes

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+ if (left && startNode.nodeName == 'BR' && isAfterNode && dom.isEmpty(parentBlockContainer)) { + container = startNode.parentNode; + offset = dom.nodeIndex(startNode); + normalized = true; + return; + } + + // Walk left until we hit a text node we can move to or a block/br/img + walker = new TreeWalker(startNode, parentBlockContainer); + while ((node = walker[left ? 'prev' : 'next']())) { + // Break if we hit a non content editable node + if (dom.getContentEditableParent(node) === "false") { + return; + } + + // Found text node that has a length + if (node.nodeType === 3 && node.nodeValue.length > 0) { + container = node; + offset = left ? node.nodeValue.length : 0; + normalized = true; + return; + } + + // Break if we find a block or a BR/IMG/INPUT etc + if (dom.isBlock(node) || nonEmptyElementsMap[node.nodeName.toLowerCase()]) { + return; + } + + lastInlineElement = node; + } + + // Only fetch the last inline element when in caret mode for now + if (collapsed && lastInlineElement) { + container = lastInlineElement; + normalized = true; + offset = 0; + } + } + + container = rng[(start ? 'start' : 'end') + 'Container']; + offset = rng[(start ? 'start' : 'end') + 'Offset']; + isAfterNode = container.nodeType == 1 && offset === container.childNodes.length; + nonEmptyElementsMap = dom.schema.getNonEmptyElements(); + directionLeft = start; + + if (container.nodeType == 1 && offset > container.childNodes.length - 1) { + directionLeft = false; + } + + // If the container is a document move it to the body element + if (container.nodeType === 9) { + container = dom.getRoot(); + offset = 0; + } + + // If the container is body try move it into the closest text node or position + if (container === body) { + // If start is before/after a image, table etc + if (directionLeft) { + node = container.childNodes[offset > 0 ? offset - 1 : 0]; + if (node) { + if (nonEmptyElementsMap[node.nodeName] || node.nodeName == "TABLE") { + return; + } + } + } + + // Resolve the index + if (container.hasChildNodes()) { + offset = Math.min(!directionLeft && offset > 0 ? offset - 1 : offset, container.childNodes.length - 1); + container = container.childNodes[offset]; + offset = 0; + + // Don't walk into elements that doesn't have any child nodes like a IMG + if (container.hasChildNodes() && !/TABLE/.test(container.nodeName)) { + // Walk the DOM to find a text node to place the caret at or a BR + node = container; + walker = new TreeWalker(container, body); + + do { + // Found a text node use that position + if (node.nodeType === 3 && node.nodeValue.length > 0) { + offset = directionLeft ? 0 : node.nodeValue.length; + container = node; + normalized = true; + break; + } + + // Found a BR/IMG element that we can place the caret before + if (nonEmptyElementsMap[node.nodeName.toLowerCase()]) { + offset = dom.nodeIndex(node); + container = node.parentNode; + + // Put caret after image when moving the end point + if (node.nodeName == "IMG" && !directionLeft) { + offset++; + } + + normalized = true; + break; + } + } while ((node = (directionLeft ? walker.next() : walker.prev()))); + } + } + } + + // Lean the caret to the left if possible + if (collapsed) { + // So this: x|x + // Becomes: x|x + // Seems that only gecko has issues with this + if (container.nodeType === 3 && offset === 0) { + findTextNodeRelative(true); + } + + // Lean left into empty inline elements when the caret is before a BR + // So this: |
 + // Becomes: |
 + // Seems that only gecko has issues with this. + // Special edge case for

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since we don't want

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+ if (container.nodeType === 1) { + node = container.childNodes[offset]; + + // Offset is after the containers last child + // then use the previous child for normalization + if (!node) { + node = container.childNodes[offset - 1]; + } + + if (node && node.nodeName === 'BR' && !isPrevNode(node, 'A') && + !hasBrBeforeAfter(node) && !hasBrBeforeAfter(node, true)) { + findTextNodeRelative(true, node); + } + } + } + + // Lean the start of the selection right if possible + // So this: x[x] + // Becomes: x[x] + if (directionLeft && !collapsed && container.nodeType === 3 && offset === container.nodeValue.length) { + findTextNodeRelative(false); + } + + // Set endpoint if it was normalized + if (normalized) { + rng['set' + (start ? 'Start' : 'End')](container, offset); + } + } + + collapsed = rng.collapsed; + + normalizeEndPoint(true); + + if (!collapsed) { + normalizeEndPoint(); + } + + // If it was collapsed then make sure it still is + if (normalized && collapsed) { + rng.collapse(true); + } + + return normalized; + }; + } + + /** + * Compares two ranges and checks if they are equal. + * + * @static + * @method compareRanges + * @param {DOMRange} rng1 First range to compare. + * @param {DOMRange} rng2 First range to compare. + * @return {Boolean} true/false if the ranges are equal. + */ + RangeUtils.compareRanges = function(rng1, rng2) { + if (rng1 && rng2) { + // Compare native IE ranges + if (rng1.item || rng1.duplicate) { + // Both are control ranges and the selected element matches + if (rng1.item && rng2.item && rng1.item(0) === rng2.item(0)) { + return true; + } + + // Both are text ranges and the range matches + if (rng1.isEqual && rng2.isEqual && rng2.isEqual(rng1)) { + return true; + } + } else { + // Compare w3c ranges + return rng1.startContainer == rng2.startContainer && rng1.startOffset == rng2.startOffset; + } + } + + return false; + }; + + /** + * Gets the caret range for the given x/y location. + * + * @static + * @method getCaretRangeFromPoint + * @param {Number} x X coordinate for range + * @param {Number} y Y coordinate for range + * @param {Document} doc Document that x/y are relative to + * @returns {Range} caret range + */ + RangeUtils.getCaretRangeFromPoint = function(x, y, doc) { + var rng, point; + + if (doc.caretPositionFromPoint) { + point = doc.caretPositionFromPoint(x, y); + rng = doc.createRange(); + rng.setStart(point.offsetNode, point.offset); + rng.collapse(true); + } else if (doc.caretRangeFromPoint) { + rng = doc.caretRangeFromPoint(x, y); + } else if (doc.body.createTextRange) { + rng = doc.body.createTextRange(); + + try { + rng.moveToPoint(x, y); + rng.collapse(true); + } catch (ex) { + // Append to top or bottom depending on drop location + rng.collapse(y < doc.body.clientHeight); + } + } + + return rng; + }; + + RangeUtils.getNode = function(container, offset) { + if (container.nodeType == 1 && container.hasChildNodes()) { + if (offset >= container.childNodes.length) { + offset = container.childNodes.length - 1; + } + + container = container.childNodes[offset]; + } + + return container; + }; + + return RangeUtils; +});