mirror of
https://github.com/ducbao414/win32.run.git
synced 2025-12-17 01:32:50 +09:00
1104 lines
46 KiB
JavaScript
1104 lines
46 KiB
JavaScript
/**
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* Class Applier module for Rangy.
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* Adds, removes and toggles classes on Ranges and Selections
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*
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* Part of Rangy, a cross-browser JavaScript range and selection library
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* https://github.com/timdown/rangy
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*
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* Depends on Rangy core.
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*
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* Copyright 2015, Tim Down
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* Licensed under the MIT license.
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* Version: 1.3.0
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* Build date: 10 May 2015
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*/
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(function(factory, root) {
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if (typeof define == "function" && define.amd) {
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// AMD. Register as an anonymous module with a dependency on Rangy.
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define(["./rangy-core"], factory);
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} else if (typeof module != "undefined" && typeof exports == "object") {
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// Node/CommonJS style
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module.exports = factory( require("rangy") );
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} else {
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// No AMD or CommonJS support so we use the rangy property of root (probably the global variable)
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factory(root.rangy);
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}
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})(function(rangy) {
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rangy.createModule("ClassApplier", ["WrappedSelection"], function(api, module) {
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var dom = api.dom;
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var DomPosition = dom.DomPosition;
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var contains = dom.arrayContains;
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var util = api.util;
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var forEach = util.forEach;
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var defaultTagName = "span";
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var createElementNSSupported = util.isHostMethod(document, "createElementNS");
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function each(obj, func) {
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for (var i in obj) {
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if (obj.hasOwnProperty(i)) {
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if (func(i, obj[i]) === false) {
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return false;
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}
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}
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}
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return true;
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}
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function trim(str) {
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return str.replace(/^\s\s*/, "").replace(/\s\s*$/, "");
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}
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function classNameContainsClass(fullClassName, className) {
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return !!fullClassName && new RegExp("(?:^|\\s)" + className + "(?:\\s|$)").test(fullClassName);
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}
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// Inefficient, inelegant nonsense for IE's svg element, which has no classList and non-HTML className implementation
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function hasClass(el, className) {
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if (typeof el.classList == "object") {
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return el.classList.contains(className);
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} else {
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var classNameSupported = (typeof el.className == "string");
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var elClass = classNameSupported ? el.className : el.getAttribute("class");
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return classNameContainsClass(elClass, className);
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}
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}
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function addClass(el, className) {
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if (typeof el.classList == "object") {
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el.classList.add(className);
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} else {
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var classNameSupported = (typeof el.className == "string");
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var elClass = classNameSupported ? el.className : el.getAttribute("class");
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if (elClass) {
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if (!classNameContainsClass(elClass, className)) {
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elClass += " " + className;
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}
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} else {
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elClass = className;
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}
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if (classNameSupported) {
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el.className = elClass;
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} else {
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el.setAttribute("class", elClass);
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}
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}
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}
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var removeClass = (function() {
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function replacer(matched, whiteSpaceBefore, whiteSpaceAfter) {
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return (whiteSpaceBefore && whiteSpaceAfter) ? " " : "";
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}
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return function(el, className) {
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if (typeof el.classList == "object") {
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el.classList.remove(className);
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} else {
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var classNameSupported = (typeof el.className == "string");
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var elClass = classNameSupported ? el.className : el.getAttribute("class");
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elClass = elClass.replace(new RegExp("(^|\\s)" + className + "(\\s|$)"), replacer);
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if (classNameSupported) {
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el.className = elClass;
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} else {
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el.setAttribute("class", elClass);
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}
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}
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};
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})();
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function getClass(el) {
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var classNameSupported = (typeof el.className == "string");
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return classNameSupported ? el.className : el.getAttribute("class");
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}
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function sortClassName(className) {
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return className && className.split(/\s+/).sort().join(" ");
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}
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function getSortedClassName(el) {
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return sortClassName( getClass(el) );
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}
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function haveSameClasses(el1, el2) {
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return getSortedClassName(el1) == getSortedClassName(el2);
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}
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function hasAllClasses(el, className) {
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var classes = className.split(/\s+/);
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for (var i = 0, len = classes.length; i < len; ++i) {
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if (!hasClass(el, trim(classes[i]))) {
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return false;
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}
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}
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return true;
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}
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function canTextBeStyled(textNode) {
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var parent = textNode.parentNode;
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return (parent && parent.nodeType == 1 && !/^(textarea|style|script|select|iframe)$/i.test(parent.nodeName));
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}
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function movePosition(position, oldParent, oldIndex, newParent, newIndex) {
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var posNode = position.node, posOffset = position.offset;
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var newNode = posNode, newOffset = posOffset;
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if (posNode == newParent && posOffset > newIndex) {
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++newOffset;
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}
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if (posNode == oldParent && (posOffset == oldIndex || posOffset == oldIndex + 1)) {
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newNode = newParent;
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newOffset += newIndex - oldIndex;
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}
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if (posNode == oldParent && posOffset > oldIndex + 1) {
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--newOffset;
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}
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position.node = newNode;
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position.offset = newOffset;
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}
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function movePositionWhenRemovingNode(position, parentNode, index) {
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if (position.node == parentNode && position.offset > index) {
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--position.offset;
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}
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}
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function movePreservingPositions(node, newParent, newIndex, positionsToPreserve) {
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// For convenience, allow newIndex to be -1 to mean "insert at the end".
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if (newIndex == -1) {
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newIndex = newParent.childNodes.length;
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}
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var oldParent = node.parentNode;
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var oldIndex = dom.getNodeIndex(node);
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forEach(positionsToPreserve, function(position) {
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movePosition(position, oldParent, oldIndex, newParent, newIndex);
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});
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// Now actually move the node.
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if (newParent.childNodes.length == newIndex) {
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newParent.appendChild(node);
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} else {
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newParent.insertBefore(node, newParent.childNodes[newIndex]);
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}
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}
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function removePreservingPositions(node, positionsToPreserve) {
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var oldParent = node.parentNode;
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var oldIndex = dom.getNodeIndex(node);
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forEach(positionsToPreserve, function(position) {
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movePositionWhenRemovingNode(position, oldParent, oldIndex);
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});
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dom.removeNode(node);
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}
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function moveChildrenPreservingPositions(node, newParent, newIndex, removeNode, positionsToPreserve) {
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var child, children = [];
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while ( (child = node.firstChild) ) {
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movePreservingPositions(child, newParent, newIndex++, positionsToPreserve);
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children.push(child);
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}
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if (removeNode) {
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removePreservingPositions(node, positionsToPreserve);
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}
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return children;
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}
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function replaceWithOwnChildrenPreservingPositions(element, positionsToPreserve) {
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return moveChildrenPreservingPositions(element, element.parentNode, dom.getNodeIndex(element), true, positionsToPreserve);
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}
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function rangeSelectsAnyText(range, textNode) {
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var textNodeRange = range.cloneRange();
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textNodeRange.selectNodeContents(textNode);
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var intersectionRange = textNodeRange.intersection(range);
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var text = intersectionRange ? intersectionRange.toString() : "";
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return text != "";
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}
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function getEffectiveTextNodes(range) {
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var nodes = range.getNodes([3]);
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// Optimization as per issue 145
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// Remove non-intersecting text nodes from the start of the range
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var start = 0, node;
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while ( (node = nodes[start]) && !rangeSelectsAnyText(range, node) ) {
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++start;
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}
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// Remove non-intersecting text nodes from the start of the range
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var end = nodes.length - 1;
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while ( (node = nodes[end]) && !rangeSelectsAnyText(range, node) ) {
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--end;
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}
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return nodes.slice(start, end + 1);
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}
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function elementsHaveSameNonClassAttributes(el1, el2) {
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if (el1.attributes.length != el2.attributes.length) return false;
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for (var i = 0, len = el1.attributes.length, attr1, attr2, name; i < len; ++i) {
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attr1 = el1.attributes[i];
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name = attr1.name;
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if (name != "class") {
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attr2 = el2.attributes.getNamedItem(name);
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if ( (attr1 === null) != (attr2 === null) ) return false;
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if (attr1.specified != attr2.specified) return false;
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if (attr1.specified && attr1.nodeValue !== attr2.nodeValue) return false;
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}
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}
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return true;
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}
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function elementHasNonClassAttributes(el, exceptions) {
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for (var i = 0, len = el.attributes.length, attrName; i < len; ++i) {
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attrName = el.attributes[i].name;
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if ( !(exceptions && contains(exceptions, attrName)) && el.attributes[i].specified && attrName != "class") {
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return true;
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}
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}
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return false;
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}
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var getComputedStyleProperty = dom.getComputedStyleProperty;
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var isEditableElement = (function() {
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var testEl = document.createElement("div");
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return typeof testEl.isContentEditable == "boolean" ?
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function (node) {
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return node && node.nodeType == 1 && node.isContentEditable;
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} :
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function (node) {
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if (!node || node.nodeType != 1 || node.contentEditable == "false") {
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return false;
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}
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return node.contentEditable == "true" || isEditableElement(node.parentNode);
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};
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})();
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function isEditingHost(node) {
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var parent;
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return node && node.nodeType == 1 &&
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(( (parent = node.parentNode) && parent.nodeType == 9 && parent.designMode == "on") ||
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(isEditableElement(node) && !isEditableElement(node.parentNode)));
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}
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function isEditable(node) {
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return (isEditableElement(node) || (node.nodeType != 1 && isEditableElement(node.parentNode))) && !isEditingHost(node);
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}
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var inlineDisplayRegex = /^inline(-block|-table)?$/i;
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function isNonInlineElement(node) {
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return node && node.nodeType == 1 && !inlineDisplayRegex.test(getComputedStyleProperty(node, "display"));
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}
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// White space characters as defined by HTML 4 (http://www.w3.org/TR/html401/struct/text.html)
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var htmlNonWhiteSpaceRegex = /[^\r\n\t\f \u200B]/;
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function isUnrenderedWhiteSpaceNode(node) {
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if (node.data.length == 0) {
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return true;
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}
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if (htmlNonWhiteSpaceRegex.test(node.data)) {
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return false;
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}
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var cssWhiteSpace = getComputedStyleProperty(node.parentNode, "whiteSpace");
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switch (cssWhiteSpace) {
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case "pre":
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case "pre-wrap":
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case "-moz-pre-wrap":
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return false;
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case "pre-line":
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if (/[\r\n]/.test(node.data)) {
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return false;
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}
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}
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// We now have a whitespace-only text node that may be rendered depending on its context. If it is adjacent to a
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// non-inline element, it will not be rendered. This seems to be a good enough definition.
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return isNonInlineElement(node.previousSibling) || isNonInlineElement(node.nextSibling);
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}
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function getRangeBoundaries(ranges) {
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var positions = [], i, range;
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for (i = 0; range = ranges[i++]; ) {
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positions.push(
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new DomPosition(range.startContainer, range.startOffset),
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new DomPosition(range.endContainer, range.endOffset)
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);
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}
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return positions;
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}
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function updateRangesFromBoundaries(ranges, positions) {
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for (var i = 0, range, start, end, len = ranges.length; i < len; ++i) {
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range = ranges[i];
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start = positions[i * 2];
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end = positions[i * 2 + 1];
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range.setStartAndEnd(start.node, start.offset, end.node, end.offset);
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}
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}
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function isSplitPoint(node, offset) {
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if (dom.isCharacterDataNode(node)) {
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if (offset == 0) {
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return !!node.previousSibling;
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} else if (offset == node.length) {
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return !!node.nextSibling;
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} else {
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return true;
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}
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}
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return offset > 0 && offset < node.childNodes.length;
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}
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function splitNodeAt(node, descendantNode, descendantOffset, positionsToPreserve) {
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var newNode, parentNode;
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var splitAtStart = (descendantOffset == 0);
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if (dom.isAncestorOf(descendantNode, node)) {
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return node;
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}
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if (dom.isCharacterDataNode(descendantNode)) {
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var descendantIndex = dom.getNodeIndex(descendantNode);
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if (descendantOffset == 0) {
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descendantOffset = descendantIndex;
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} else if (descendantOffset == descendantNode.length) {
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descendantOffset = descendantIndex + 1;
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} else {
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throw module.createError("splitNodeAt() should not be called with offset in the middle of a data node (" +
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descendantOffset + " in " + descendantNode.data);
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}
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descendantNode = descendantNode.parentNode;
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}
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if (isSplitPoint(descendantNode, descendantOffset)) {
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// descendantNode is now guaranteed not to be a text or other character node
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newNode = descendantNode.cloneNode(false);
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parentNode = descendantNode.parentNode;
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if (newNode.id) {
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newNode.removeAttribute("id");
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}
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var child, newChildIndex = 0;
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while ( (child = descendantNode.childNodes[descendantOffset]) ) {
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movePreservingPositions(child, newNode, newChildIndex++, positionsToPreserve);
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}
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movePreservingPositions(newNode, parentNode, dom.getNodeIndex(descendantNode) + 1, positionsToPreserve);
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return (descendantNode == node) ? newNode : splitNodeAt(node, parentNode, dom.getNodeIndex(newNode), positionsToPreserve);
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} else if (node != descendantNode) {
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newNode = descendantNode.parentNode;
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// Work out a new split point in the parent node
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var newNodeIndex = dom.getNodeIndex(descendantNode);
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if (!splitAtStart) {
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newNodeIndex++;
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}
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return splitNodeAt(node, newNode, newNodeIndex, positionsToPreserve);
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}
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return node;
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}
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function areElementsMergeable(el1, el2) {
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return el1.namespaceURI == el2.namespaceURI &&
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el1.tagName.toLowerCase() == el2.tagName.toLowerCase() &&
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haveSameClasses(el1, el2) &&
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elementsHaveSameNonClassAttributes(el1, el2) &&
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getComputedStyleProperty(el1, "display") == "inline" &&
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getComputedStyleProperty(el2, "display") == "inline";
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}
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function createAdjacentMergeableTextNodeGetter(forward) {
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var siblingPropName = forward ? "nextSibling" : "previousSibling";
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return function(textNode, checkParentElement) {
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var el = textNode.parentNode;
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var adjacentNode = textNode[siblingPropName];
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if (adjacentNode) {
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// Can merge if the node's previous/next sibling is a text node
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if (adjacentNode && adjacentNode.nodeType == 3) {
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return adjacentNode;
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}
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} else if (checkParentElement) {
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// Compare text node parent element with its sibling
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adjacentNode = el[siblingPropName];
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if (adjacentNode && adjacentNode.nodeType == 1 && areElementsMergeable(el, adjacentNode)) {
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var adjacentNodeChild = adjacentNode[forward ? "firstChild" : "lastChild"];
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if (adjacentNodeChild && adjacentNodeChild.nodeType == 3) {
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return adjacentNodeChild;
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}
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}
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}
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return null;
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};
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}
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var getPreviousMergeableTextNode = createAdjacentMergeableTextNodeGetter(false),
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getNextMergeableTextNode = createAdjacentMergeableTextNodeGetter(true);
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function Merge(firstNode) {
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this.isElementMerge = (firstNode.nodeType == 1);
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this.textNodes = [];
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var firstTextNode = this.isElementMerge ? firstNode.lastChild : firstNode;
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if (firstTextNode) {
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this.textNodes[0] = firstTextNode;
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}
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}
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Merge.prototype = {
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doMerge: function(positionsToPreserve) {
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var textNodes = this.textNodes;
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var firstTextNode = textNodes[0];
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if (textNodes.length > 1) {
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var firstTextNodeIndex = dom.getNodeIndex(firstTextNode);
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var textParts = [], combinedTextLength = 0, textNode, parent;
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forEach(textNodes, function(textNode, i) {
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parent = textNode.parentNode;
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if (i > 0) {
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parent.removeChild(textNode);
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if (!parent.hasChildNodes()) {
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dom.removeNode(parent);
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}
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if (positionsToPreserve) {
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forEach(positionsToPreserve, function(position) {
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// Handle case where position is inside the text node being merged into a preceding node
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if (position.node == textNode) {
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position.node = firstTextNode;
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position.offset += combinedTextLength;
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}
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// Handle case where both text nodes precede the position within the same parent node
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if (position.node == parent && position.offset > firstTextNodeIndex) {
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--position.offset;
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if (position.offset == firstTextNodeIndex + 1 && i < len - 1) {
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position.node = firstTextNode;
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position.offset = combinedTextLength;
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}
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}
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});
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}
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}
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textParts[i] = textNode.data;
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combinedTextLength += textNode.data.length;
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});
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firstTextNode.data = textParts.join("");
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}
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return firstTextNode.data;
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},
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getLength: function() {
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var i = this.textNodes.length, len = 0;
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while (i--) {
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len += this.textNodes[i].length;
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}
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return len;
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},
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toString: function() {
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var textParts = [];
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forEach(this.textNodes, function(textNode, i) {
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textParts[i] = "'" + textNode.data + "'";
|
|
});
|
|
return "[Merge(" + textParts.join(",") + ")]";
|
|
}
|
|
};
|
|
|
|
var optionProperties = ["elementTagName", "ignoreWhiteSpace", "applyToEditableOnly", "useExistingElements",
|
|
"removeEmptyElements", "onElementCreate"];
|
|
|
|
// TODO: Populate this with every attribute name that corresponds to a property with a different name. Really??
|
|
var attrNamesForProperties = {};
|
|
|
|
function ClassApplier(className, options, tagNames) {
|
|
var normalize, i, len, propName, applier = this;
|
|
applier.cssClass = applier.className = className; // cssClass property is for backward compatibility
|
|
|
|
var elementPropertiesFromOptions = null, elementAttributes = {};
|
|
|
|
// Initialize from options object
|
|
if (typeof options == "object" && options !== null) {
|
|
if (typeof options.elementTagName !== "undefined") {
|
|
options.elementTagName = options.elementTagName.toLowerCase();
|
|
}
|
|
tagNames = options.tagNames;
|
|
elementPropertiesFromOptions = options.elementProperties;
|
|
elementAttributes = options.elementAttributes;
|
|
|
|
for (i = 0; propName = optionProperties[i++]; ) {
|
|
if (options.hasOwnProperty(propName)) {
|
|
applier[propName] = options[propName];
|
|
}
|
|
}
|
|
normalize = options.normalize;
|
|
} else {
|
|
normalize = options;
|
|
}
|
|
|
|
// Backward compatibility: the second parameter can also be a Boolean indicating to normalize after unapplying
|
|
applier.normalize = (typeof normalize == "undefined") ? true : normalize;
|
|
|
|
// Initialize element properties and attribute exceptions
|
|
applier.attrExceptions = [];
|
|
var el = document.createElement(applier.elementTagName);
|
|
applier.elementProperties = applier.copyPropertiesToElement(elementPropertiesFromOptions, el, true);
|
|
each(elementAttributes, function(attrName, attrValue) {
|
|
applier.attrExceptions.push(attrName);
|
|
// Ensure each attribute value is a string
|
|
elementAttributes[attrName] = "" + attrValue;
|
|
});
|
|
applier.elementAttributes = elementAttributes;
|
|
|
|
applier.elementSortedClassName = applier.elementProperties.hasOwnProperty("className") ?
|
|
sortClassName(applier.elementProperties.className + " " + className) : className;
|
|
|
|
// Initialize tag names
|
|
applier.applyToAnyTagName = false;
|
|
var type = typeof tagNames;
|
|
if (type == "string") {
|
|
if (tagNames == "*") {
|
|
applier.applyToAnyTagName = true;
|
|
} else {
|
|
applier.tagNames = trim(tagNames.toLowerCase()).split(/\s*,\s*/);
|
|
}
|
|
} else if (type == "object" && typeof tagNames.length == "number") {
|
|
applier.tagNames = [];
|
|
for (i = 0, len = tagNames.length; i < len; ++i) {
|
|
if (tagNames[i] == "*") {
|
|
applier.applyToAnyTagName = true;
|
|
} else {
|
|
applier.tagNames.push(tagNames[i].toLowerCase());
|
|
}
|
|
}
|
|
} else {
|
|
applier.tagNames = [applier.elementTagName];
|
|
}
|
|
}
|
|
|
|
ClassApplier.prototype = {
|
|
elementTagName: defaultTagName,
|
|
elementProperties: {},
|
|
elementAttributes: {},
|
|
ignoreWhiteSpace: true,
|
|
applyToEditableOnly: false,
|
|
useExistingElements: true,
|
|
removeEmptyElements: true,
|
|
onElementCreate: null,
|
|
|
|
copyPropertiesToElement: function(props, el, createCopy) {
|
|
var s, elStyle, elProps = {}, elPropsStyle, propValue, elPropValue, attrName;
|
|
|
|
for (var p in props) {
|
|
if (props.hasOwnProperty(p)) {
|
|
propValue = props[p];
|
|
elPropValue = el[p];
|
|
|
|
// Special case for class. The copied properties object has the applier's class as well as its own
|
|
// to simplify checks when removing styling elements
|
|
if (p == "className") {
|
|
addClass(el, propValue);
|
|
addClass(el, this.className);
|
|
el[p] = sortClassName(el[p]);
|
|
if (createCopy) {
|
|
elProps[p] = propValue;
|
|
}
|
|
}
|
|
|
|
// Special case for style
|
|
else if (p == "style") {
|
|
elStyle = elPropValue;
|
|
if (createCopy) {
|
|
elProps[p] = elPropsStyle = {};
|
|
}
|
|
for (s in props[p]) {
|
|
if (props[p].hasOwnProperty(s)) {
|
|
elStyle[s] = propValue[s];
|
|
if (createCopy) {
|
|
elPropsStyle[s] = elStyle[s];
|
|
}
|
|
}
|
|
}
|
|
this.attrExceptions.push(p);
|
|
} else {
|
|
el[p] = propValue;
|
|
// Copy the property back from the dummy element so that later comparisons to check whether
|
|
// elements may be removed are checking against the right value. For example, the href property
|
|
// of an element returns a fully qualified URL even if it was previously assigned a relative
|
|
// URL.
|
|
if (createCopy) {
|
|
elProps[p] = el[p];
|
|
|
|
// Not all properties map to identically-named attributes
|
|
attrName = attrNamesForProperties.hasOwnProperty(p) ? attrNamesForProperties[p] : p;
|
|
this.attrExceptions.push(attrName);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return createCopy ? elProps : "";
|
|
},
|
|
|
|
copyAttributesToElement: function(attrs, el) {
|
|
for (var attrName in attrs) {
|
|
if (attrs.hasOwnProperty(attrName) && !/^class(?:Name)?$/i.test(attrName)) {
|
|
el.setAttribute(attrName, attrs[attrName]);
|
|
}
|
|
}
|
|
},
|
|
|
|
appliesToElement: function(el) {
|
|
return contains(this.tagNames, el.tagName.toLowerCase());
|
|
},
|
|
|
|
getEmptyElements: function(range) {
|
|
var applier = this;
|
|
return range.getNodes([1], function(el) {
|
|
return applier.appliesToElement(el) && !el.hasChildNodes();
|
|
});
|
|
},
|
|
|
|
hasClass: function(node) {
|
|
return node.nodeType == 1 &&
|
|
(this.applyToAnyTagName || this.appliesToElement(node)) &&
|
|
hasClass(node, this.className);
|
|
},
|
|
|
|
getSelfOrAncestorWithClass: function(node) {
|
|
while (node) {
|
|
if (this.hasClass(node)) {
|
|
return node;
|
|
}
|
|
node = node.parentNode;
|
|
}
|
|
return null;
|
|
},
|
|
|
|
isModifiable: function(node) {
|
|
return !this.applyToEditableOnly || isEditable(node);
|
|
},
|
|
|
|
// White space adjacent to an unwrappable node can be ignored for wrapping
|
|
isIgnorableWhiteSpaceNode: function(node) {
|
|
return this.ignoreWhiteSpace && node && node.nodeType == 3 && isUnrenderedWhiteSpaceNode(node);
|
|
},
|
|
|
|
// Normalizes nodes after applying a class to a Range.
|
|
postApply: function(textNodes, range, positionsToPreserve, isUndo) {
|
|
var firstNode = textNodes[0], lastNode = textNodes[textNodes.length - 1];
|
|
|
|
var merges = [], currentMerge;
|
|
|
|
var rangeStartNode = firstNode, rangeEndNode = lastNode;
|
|
var rangeStartOffset = 0, rangeEndOffset = lastNode.length;
|
|
|
|
var textNode, precedingTextNode;
|
|
|
|
// Check for every required merge and create a Merge object for each
|
|
forEach(textNodes, function(textNode) {
|
|
precedingTextNode = getPreviousMergeableTextNode(textNode, !isUndo);
|
|
if (precedingTextNode) {
|
|
if (!currentMerge) {
|
|
currentMerge = new Merge(precedingTextNode);
|
|
merges.push(currentMerge);
|
|
}
|
|
currentMerge.textNodes.push(textNode);
|
|
if (textNode === firstNode) {
|
|
rangeStartNode = currentMerge.textNodes[0];
|
|
rangeStartOffset = rangeStartNode.length;
|
|
}
|
|
if (textNode === lastNode) {
|
|
rangeEndNode = currentMerge.textNodes[0];
|
|
rangeEndOffset = currentMerge.getLength();
|
|
}
|
|
} else {
|
|
currentMerge = null;
|
|
}
|
|
});
|
|
|
|
// Test whether the first node after the range needs merging
|
|
var nextTextNode = getNextMergeableTextNode(lastNode, !isUndo);
|
|
|
|
if (nextTextNode) {
|
|
if (!currentMerge) {
|
|
currentMerge = new Merge(lastNode);
|
|
merges.push(currentMerge);
|
|
}
|
|
currentMerge.textNodes.push(nextTextNode);
|
|
}
|
|
|
|
// Apply the merges
|
|
if (merges.length) {
|
|
for (i = 0, len = merges.length; i < len; ++i) {
|
|
merges[i].doMerge(positionsToPreserve);
|
|
}
|
|
|
|
// Set the range boundaries
|
|
range.setStartAndEnd(rangeStartNode, rangeStartOffset, rangeEndNode, rangeEndOffset);
|
|
}
|
|
},
|
|
|
|
createContainer: function(parentNode) {
|
|
var doc = dom.getDocument(parentNode);
|
|
var namespace;
|
|
var el = createElementNSSupported && !dom.isHtmlNamespace(parentNode) && (namespace = parentNode.namespaceURI) ?
|
|
doc.createElementNS(parentNode.namespaceURI, this.elementTagName) :
|
|
doc.createElement(this.elementTagName);
|
|
|
|
this.copyPropertiesToElement(this.elementProperties, el, false);
|
|
this.copyAttributesToElement(this.elementAttributes, el);
|
|
addClass(el, this.className);
|
|
if (this.onElementCreate) {
|
|
this.onElementCreate(el, this);
|
|
}
|
|
return el;
|
|
},
|
|
|
|
elementHasProperties: function(el, props) {
|
|
var applier = this;
|
|
return each(props, function(p, propValue) {
|
|
if (p == "className") {
|
|
// For checking whether we should reuse an existing element, we just want to check that the element
|
|
// has all the classes specified in the className property. When deciding whether the element is
|
|
// removable when unapplying a class, there is separate special handling to check whether the
|
|
// element has extra classes so the same simple check will do.
|
|
return hasAllClasses(el, propValue);
|
|
} else if (typeof propValue == "object") {
|
|
if (!applier.elementHasProperties(el[p], propValue)) {
|
|
return false;
|
|
}
|
|
} else if (el[p] !== propValue) {
|
|
return false;
|
|
}
|
|
});
|
|
},
|
|
|
|
elementHasAttributes: function(el, attrs) {
|
|
return each(attrs, function(name, value) {
|
|
if (el.getAttribute(name) !== value) {
|
|
return false;
|
|
}
|
|
});
|
|
},
|
|
|
|
applyToTextNode: function(textNode, positionsToPreserve) {
|
|
|
|
// Check whether the text node can be styled. Text within a <style> or <script> element, for example,
|
|
// should not be styled. See issue 283.
|
|
if (canTextBeStyled(textNode)) {
|
|
var parent = textNode.parentNode;
|
|
if (parent.childNodes.length == 1 &&
|
|
this.useExistingElements &&
|
|
this.appliesToElement(parent) &&
|
|
this.elementHasProperties(parent, this.elementProperties) &&
|
|
this.elementHasAttributes(parent, this.elementAttributes)) {
|
|
|
|
addClass(parent, this.className);
|
|
} else {
|
|
var textNodeParent = textNode.parentNode;
|
|
var el = this.createContainer(textNodeParent);
|
|
textNodeParent.insertBefore(el, textNode);
|
|
el.appendChild(textNode);
|
|
}
|
|
}
|
|
|
|
},
|
|
|
|
isRemovable: function(el) {
|
|
return el.tagName.toLowerCase() == this.elementTagName &&
|
|
getSortedClassName(el) == this.elementSortedClassName &&
|
|
this.elementHasProperties(el, this.elementProperties) &&
|
|
!elementHasNonClassAttributes(el, this.attrExceptions) &&
|
|
this.elementHasAttributes(el, this.elementAttributes) &&
|
|
this.isModifiable(el);
|
|
},
|
|
|
|
isEmptyContainer: function(el) {
|
|
var childNodeCount = el.childNodes.length;
|
|
return el.nodeType == 1 &&
|
|
this.isRemovable(el) &&
|
|
(childNodeCount == 0 || (childNodeCount == 1 && this.isEmptyContainer(el.firstChild)));
|
|
},
|
|
|
|
removeEmptyContainers: function(range) {
|
|
var applier = this;
|
|
var nodesToRemove = range.getNodes([1], function(el) {
|
|
return applier.isEmptyContainer(el);
|
|
});
|
|
|
|
var rangesToPreserve = [range];
|
|
var positionsToPreserve = getRangeBoundaries(rangesToPreserve);
|
|
|
|
forEach(nodesToRemove, function(node) {
|
|
removePreservingPositions(node, positionsToPreserve);
|
|
});
|
|
|
|
// Update the range from the preserved boundary positions
|
|
updateRangesFromBoundaries(rangesToPreserve, positionsToPreserve);
|
|
},
|
|
|
|
undoToTextNode: function(textNode, range, ancestorWithClass, positionsToPreserve) {
|
|
if (!range.containsNode(ancestorWithClass)) {
|
|
// Split out the portion of the ancestor from which we can remove the class
|
|
//var parent = ancestorWithClass.parentNode, index = dom.getNodeIndex(ancestorWithClass);
|
|
var ancestorRange = range.cloneRange();
|
|
ancestorRange.selectNode(ancestorWithClass);
|
|
if (ancestorRange.isPointInRange(range.endContainer, range.endOffset)) {
|
|
splitNodeAt(ancestorWithClass, range.endContainer, range.endOffset, positionsToPreserve);
|
|
range.setEndAfter(ancestorWithClass);
|
|
}
|
|
if (ancestorRange.isPointInRange(range.startContainer, range.startOffset)) {
|
|
ancestorWithClass = splitNodeAt(ancestorWithClass, range.startContainer, range.startOffset, positionsToPreserve);
|
|
}
|
|
}
|
|
|
|
if (this.isRemovable(ancestorWithClass)) {
|
|
replaceWithOwnChildrenPreservingPositions(ancestorWithClass, positionsToPreserve);
|
|
} else {
|
|
removeClass(ancestorWithClass, this.className);
|
|
}
|
|
},
|
|
|
|
splitAncestorWithClass: function(container, offset, positionsToPreserve) {
|
|
var ancestorWithClass = this.getSelfOrAncestorWithClass(container);
|
|
if (ancestorWithClass) {
|
|
splitNodeAt(ancestorWithClass, container, offset, positionsToPreserve);
|
|
}
|
|
},
|
|
|
|
undoToAncestor: function(ancestorWithClass, positionsToPreserve) {
|
|
if (this.isRemovable(ancestorWithClass)) {
|
|
replaceWithOwnChildrenPreservingPositions(ancestorWithClass, positionsToPreserve);
|
|
} else {
|
|
removeClass(ancestorWithClass, this.className);
|
|
}
|
|
},
|
|
|
|
applyToRange: function(range, rangesToPreserve) {
|
|
var applier = this;
|
|
rangesToPreserve = rangesToPreserve || [];
|
|
|
|
// Create an array of range boundaries to preserve
|
|
var positionsToPreserve = getRangeBoundaries(rangesToPreserve || []);
|
|
|
|
range.splitBoundariesPreservingPositions(positionsToPreserve);
|
|
|
|
// Tidy up the DOM by removing empty containers
|
|
if (applier.removeEmptyElements) {
|
|
applier.removeEmptyContainers(range);
|
|
}
|
|
|
|
var textNodes = getEffectiveTextNodes(range);
|
|
|
|
if (textNodes.length) {
|
|
forEach(textNodes, function(textNode) {
|
|
if (!applier.isIgnorableWhiteSpaceNode(textNode) && !applier.getSelfOrAncestorWithClass(textNode) &&
|
|
applier.isModifiable(textNode)) {
|
|
applier.applyToTextNode(textNode, positionsToPreserve);
|
|
}
|
|
});
|
|
var lastTextNode = textNodes[textNodes.length - 1];
|
|
range.setStartAndEnd(textNodes[0], 0, lastTextNode, lastTextNode.length);
|
|
if (applier.normalize) {
|
|
applier.postApply(textNodes, range, positionsToPreserve, false);
|
|
}
|
|
|
|
// Update the ranges from the preserved boundary positions
|
|
updateRangesFromBoundaries(rangesToPreserve, positionsToPreserve);
|
|
}
|
|
|
|
// Apply classes to any appropriate empty elements
|
|
var emptyElements = applier.getEmptyElements(range);
|
|
|
|
forEach(emptyElements, function(el) {
|
|
addClass(el, applier.className);
|
|
});
|
|
},
|
|
|
|
applyToRanges: function(ranges) {
|
|
|
|
var i = ranges.length;
|
|
while (i--) {
|
|
this.applyToRange(ranges[i], ranges);
|
|
}
|
|
|
|
|
|
return ranges;
|
|
},
|
|
|
|
applyToSelection: function(win) {
|
|
var sel = api.getSelection(win);
|
|
sel.setRanges( this.applyToRanges(sel.getAllRanges()) );
|
|
},
|
|
|
|
undoToRange: function(range, rangesToPreserve) {
|
|
var applier = this;
|
|
// Create an array of range boundaries to preserve
|
|
rangesToPreserve = rangesToPreserve || [];
|
|
var positionsToPreserve = getRangeBoundaries(rangesToPreserve);
|
|
|
|
|
|
range.splitBoundariesPreservingPositions(positionsToPreserve);
|
|
|
|
// Tidy up the DOM by removing empty containers
|
|
if (applier.removeEmptyElements) {
|
|
applier.removeEmptyContainers(range, positionsToPreserve);
|
|
}
|
|
|
|
var textNodes = getEffectiveTextNodes(range);
|
|
var textNode, ancestorWithClass;
|
|
var lastTextNode = textNodes[textNodes.length - 1];
|
|
|
|
if (textNodes.length) {
|
|
applier.splitAncestorWithClass(range.endContainer, range.endOffset, positionsToPreserve);
|
|
applier.splitAncestorWithClass(range.startContainer, range.startOffset, positionsToPreserve);
|
|
for (var i = 0, len = textNodes.length; i < len; ++i) {
|
|
textNode = textNodes[i];
|
|
ancestorWithClass = applier.getSelfOrAncestorWithClass(textNode);
|
|
if (ancestorWithClass && applier.isModifiable(textNode)) {
|
|
applier.undoToAncestor(ancestorWithClass, positionsToPreserve);
|
|
}
|
|
}
|
|
// Ensure the range is still valid
|
|
range.setStartAndEnd(textNodes[0], 0, lastTextNode, lastTextNode.length);
|
|
|
|
|
|
if (applier.normalize) {
|
|
applier.postApply(textNodes, range, positionsToPreserve, true);
|
|
}
|
|
|
|
// Update the ranges from the preserved boundary positions
|
|
updateRangesFromBoundaries(rangesToPreserve, positionsToPreserve);
|
|
}
|
|
|
|
// Remove class from any appropriate empty elements
|
|
var emptyElements = applier.getEmptyElements(range);
|
|
|
|
forEach(emptyElements, function(el) {
|
|
removeClass(el, applier.className);
|
|
});
|
|
},
|
|
|
|
undoToRanges: function(ranges) {
|
|
// Get ranges returned in document order
|
|
var i = ranges.length;
|
|
|
|
while (i--) {
|
|
this.undoToRange(ranges[i], ranges);
|
|
}
|
|
|
|
return ranges;
|
|
},
|
|
|
|
undoToSelection: function(win) {
|
|
var sel = api.getSelection(win);
|
|
var ranges = api.getSelection(win).getAllRanges();
|
|
this.undoToRanges(ranges);
|
|
sel.setRanges(ranges);
|
|
},
|
|
|
|
isAppliedToRange: function(range) {
|
|
if (range.collapsed || range.toString() == "") {
|
|
return !!this.getSelfOrAncestorWithClass(range.commonAncestorContainer);
|
|
} else {
|
|
var textNodes = range.getNodes( [3] );
|
|
if (textNodes.length)
|
|
for (var i = 0, textNode; textNode = textNodes[i++]; ) {
|
|
if (!this.isIgnorableWhiteSpaceNode(textNode) && rangeSelectsAnyText(range, textNode) &&
|
|
this.isModifiable(textNode) && !this.getSelfOrAncestorWithClass(textNode)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
},
|
|
|
|
isAppliedToRanges: function(ranges) {
|
|
var i = ranges.length;
|
|
if (i == 0) {
|
|
return false;
|
|
}
|
|
while (i--) {
|
|
if (!this.isAppliedToRange(ranges[i])) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
},
|
|
|
|
isAppliedToSelection: function(win) {
|
|
var sel = api.getSelection(win);
|
|
return this.isAppliedToRanges(sel.getAllRanges());
|
|
},
|
|
|
|
toggleRange: function(range) {
|
|
if (this.isAppliedToRange(range)) {
|
|
this.undoToRange(range);
|
|
} else {
|
|
this.applyToRange(range);
|
|
}
|
|
},
|
|
|
|
toggleSelection: function(win) {
|
|
if (this.isAppliedToSelection(win)) {
|
|
this.undoToSelection(win);
|
|
} else {
|
|
this.applyToSelection(win);
|
|
}
|
|
},
|
|
|
|
getElementsWithClassIntersectingRange: function(range) {
|
|
var elements = [];
|
|
var applier = this;
|
|
range.getNodes([3], function(textNode) {
|
|
var el = applier.getSelfOrAncestorWithClass(textNode);
|
|
if (el && !contains(elements, el)) {
|
|
elements.push(el);
|
|
}
|
|
});
|
|
return elements;
|
|
},
|
|
|
|
detach: function() {}
|
|
};
|
|
|
|
function createClassApplier(className, options, tagNames) {
|
|
return new ClassApplier(className, options, tagNames);
|
|
}
|
|
|
|
ClassApplier.util = {
|
|
hasClass: hasClass,
|
|
addClass: addClass,
|
|
removeClass: removeClass,
|
|
getClass: getClass,
|
|
hasSameClasses: haveSameClasses,
|
|
hasAllClasses: hasAllClasses,
|
|
replaceWithOwnChildren: replaceWithOwnChildrenPreservingPositions,
|
|
elementsHaveSameNonClassAttributes: elementsHaveSameNonClassAttributes,
|
|
elementHasNonClassAttributes: elementHasNonClassAttributes,
|
|
splitNodeAt: splitNodeAt,
|
|
isEditableElement: isEditableElement,
|
|
isEditingHost: isEditingHost,
|
|
isEditable: isEditable
|
|
};
|
|
|
|
api.CssClassApplier = api.ClassApplier = ClassApplier;
|
|
api.createClassApplier = createClassApplier;
|
|
util.createAliasForDeprecatedMethod(api, "createCssClassApplier", "createClassApplier", module);
|
|
});
|
|
|
|
return rangy;
|
|
}, this);
|