| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| /* global define, module, require, exports */ |
| |
| /** |
| * Clipboard used for copying and pasting content. |
| */ |
| (function (root, factory) { |
| if (typeof define === 'function' && define.amd) { |
| define(['jquery', |
| 'nf.Common'], |
| function ($, nfCommon) { |
| return (nf.Clipboard = factory($, nfCommon)); |
| }); |
| } else if (typeof exports === 'object' && typeof module === 'object') { |
| module.exports = (nf.Clipboard = |
| factory(require('jquery'), |
| require('nf.Common'))); |
| } else { |
| nf.Clipboard = factory(root.$, |
| root.nf.Common); |
| } |
| }(this, function ($, nfCommon) { |
| 'use strict'; |
| |
| var COPY = 'copy'; |
| var PASTE = 'paste'; |
| var data = null; |
| var listeners = {}; |
| |
| return { |
| /** |
| * Add a listener to receive copy and paste events. |
| * |
| * @argument {object} listener A clipboard listener |
| * @argument {function} funct Callback when clipboard events occur |
| */ |
| addListener: function (listener, funct) { |
| listeners[listener] = funct; |
| }, |
| |
| /** |
| * Remove the specified listener. |
| * |
| * @argument {object} listener A clipboard listener |
| */ |
| removeListener: function (listener) { |
| if (nfCommon.isDefinedAndNotNull(listeners[listener])) { |
| delete listeners[listener]; |
| } |
| }, |
| |
| /** |
| * Copy the specified data. |
| * |
| * @argument {object} d The data to copy to the clipboard |
| */ |
| copy: function (d) { |
| data = d; |
| |
| // inform the listeners |
| for (var listener in listeners) { |
| listeners[listener].call(listener, COPY, data); |
| } |
| }, |
| |
| /** |
| * Checks to see if any data has been copied. |
| */ |
| isCopied: function () { |
| return nfCommon.isDefinedAndNotNull(data); |
| }, |
| |
| /** |
| * Gets the most recent data thats copied. This operation |
| * will remove the corresponding data from the clipboard. |
| */ |
| paste: function () { |
| return $.Deferred(function (deferred) { |
| // ensure there was data |
| if (nfCommon.isDefinedAndNotNull(data)) { |
| var clipboardData = data; |
| |
| // resolve the deferred |
| deferred.resolve(clipboardData); |
| |
| // clear the clipboard |
| data = null; |
| |
| // inform the listeners |
| for (var listener in listeners) { |
| listeners[listener].call(listener, PASTE, clipboardData); |
| } |
| } else { |
| deferred.reject(); |
| } |
| }).promise(); |
| } |
| }; |
| })); |