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Diffstat (limited to 'contexts/data/lib/closure-library/closure/goog/dom/classes.js')
-rw-r--r-- | contexts/data/lib/closure-library/closure/goog/dom/classes.js | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/contexts/data/lib/closure-library/closure/goog/dom/classes.js b/contexts/data/lib/closure-library/closure/goog/dom/classes.js deleted file mode 100644 index d6232f2..0000000 --- a/contexts/data/lib/closure-library/closure/goog/dom/classes.js +++ /dev/null @@ -1,223 +0,0 @@ -// Copyright 2006 The Closure Library Authors. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS-IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -/** - * @fileoverview Utilities for adding, removing and setting classes. - * - * Note: these utilities are meant to operate on HTMLElements and - * will not work on elements with differing interfaces (such as SVGElements). - * - */ - - -goog.provide('goog.dom.classes'); - -goog.require('goog.array'); - - -/** - * Sets the entire class name of an element. - * @param {Node} element DOM node to set class of. - * @param {string} className Class name(s) to apply to element. - */ -goog.dom.classes.set = function(element, className) { - element.className = className; -}; - - -/** - * Gets an array of class names on an element - * @param {Node} element DOM node to get class of. - * @return {!Array} Class names on {@code element}. Some browsers add extra - * properties to the array. Do not depend on any of these! - */ -goog.dom.classes.get = function(element) { - var className = element.className; - // Some types of elements don't have a className in IE (e.g. iframes). - // Furthermore, in Firefox, className is not a string when the element is - // an SVG element. - return goog.isString(className) && className.match(/\S+/g) || []; -}; - - -/** - * Adds a class or classes to an element. Does not add multiples of class names. - * @param {Node} element DOM node to add class to. - * @param {...string} var_args Class names to add. - * @return {boolean} Whether class was added (or all classes were added). - */ -goog.dom.classes.add = function(element, var_args) { - var classes = goog.dom.classes.get(element); - var args = goog.array.slice(arguments, 1); - var expectedCount = classes.length + args.length; - goog.dom.classes.add_(classes, args); - element.className = classes.join(' '); - return classes.length == expectedCount; -}; - - -/** - * Removes a class or classes from an element. - * @param {Node} element DOM node to remove class from. - * @param {...string} var_args Class name(s) to remove. - * @return {boolean} Whether all classes in {@code var_args} were found and - * removed. - */ -goog.dom.classes.remove = function(element, var_args) { - var classes = goog.dom.classes.get(element); - var args = goog.array.slice(arguments, 1); - var newClasses = goog.dom.classes.getDifference_(classes, args); - element.className = newClasses.join(' '); - return newClasses.length == classes.length - args.length; -}; - - -/** - * Helper method for {@link goog.dom.classes.add} and - * {@link goog.dom.classes.addRemove}. Adds one or more classes to the supplied - * classes array. - * @param {Array.<string>} classes All class names for the element, will be - * updated to have the classes supplied in {@code args} added. - * @param {Array.<string>} args Class names to add. - * @private - */ -goog.dom.classes.add_ = function(classes, args) { - for (var i = 0; i < args.length; i++) { - if (!goog.array.contains(classes, args[i])) { - classes.push(args[i]); - } - } -}; - - -/** - * Helper method for {@link goog.dom.classes.remove} and - * {@link goog.dom.classes.addRemove}. Calculates the difference of two arrays. - * @param {!Array.<string>} arr1 First array. - * @param {!Array.<string>} arr2 Second array. - * @return {!Array.<string>} The first array without the elements of the second - * array. - * @private - */ -goog.dom.classes.getDifference_ = function(arr1, arr2) { - return goog.array.filter(arr1, function(item) { - return !goog.array.contains(arr2, item); - }); -}; - - -/** - * Switches a class on an element from one to another without disturbing other - * classes. If the fromClass isn't removed, the toClass won't be added. - * @param {Node} element DOM node to swap classes on. - * @param {string} fromClass Class to remove. - * @param {string} toClass Class to add. - * @return {boolean} Whether classes were switched. - */ -goog.dom.classes.swap = function(element, fromClass, toClass) { - var classes = goog.dom.classes.get(element); - - var removed = false; - for (var i = 0; i < classes.length; i++) { - if (classes[i] == fromClass) { - goog.array.splice(classes, i--, 1); - removed = true; - } - } - - if (removed) { - classes.push(toClass); - element.className = classes.join(' '); - } - - return removed; -}; - - -/** - * Adds zero or more classes to an element and removes zero or more as a single - * operation. Unlike calling {@link goog.dom.classes.add} and - * {@link goog.dom.classes.remove} separately, this is more efficient as it only - * parses the class property once. - * - * If a class is in both the remove and add lists, it will be added. Thus, - * you can use this instead of {@link goog.dom.classes.swap} when you have - * more than two class names that you want to swap. - * - * @param {Node} element DOM node to swap classes on. - * @param {?(string|Array.<string>)} classesToRemove Class or classes to - * remove, if null no classes are removed. - * @param {?(string|Array.<string>)} classesToAdd Class or classes to add, if - * null no classes are added. - */ -goog.dom.classes.addRemove = function(element, classesToRemove, classesToAdd) { - var classes = goog.dom.classes.get(element); - if (goog.isString(classesToRemove)) { - goog.array.remove(classes, classesToRemove); - } else if (goog.isArray(classesToRemove)) { - classes = goog.dom.classes.getDifference_(classes, classesToRemove); - } - - if (goog.isString(classesToAdd) && - !goog.array.contains(classes, classesToAdd)) { - classes.push(classesToAdd); - } else if (goog.isArray(classesToAdd)) { - goog.dom.classes.add_(classes, classesToAdd); - } - - element.className = classes.join(' '); -}; - - -/** - * Returns true if an element has a class. - * @param {Node} element DOM node to test. - * @param {string} className Class name to test for. - * @return {boolean} Whether element has the class. - */ -goog.dom.classes.has = function(element, className) { - return goog.array.contains(goog.dom.classes.get(element), className); -}; - - -/** - * Adds or removes a class depending on the enabled argument. - * @param {Node} element DOM node to add or remove the class on. - * @param {string} className Class name to add or remove. - * @param {boolean} enabled Whether to add or remove the class (true adds, - * false removes). - */ -goog.dom.classes.enable = function(element, className, enabled) { - if (enabled) { - goog.dom.classes.add(element, className); - } else { - goog.dom.classes.remove(element, className); - } -}; - - -/** - * Removes a class if an element has it, and adds it the element doesn't have - * it. Won't affect other classes on the node. - * @param {Node} element DOM node to toggle class on. - * @param {string} className Class to toggle. - * @return {boolean} True if class was added, false if it was removed - * (in other words, whether element has the class after this function has - * been called). - */ -goog.dom.classes.toggle = function(element, className) { - var add = !goog.dom.classes.has(element, className); - goog.dom.classes.enable(element, className, add); - return add; -}; |