mirror of
https://github.com/gyurix1968/guacamole-client.git
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126 lines
3.9 KiB
JavaScript
126 lines
3.9 KiB
JavaScript
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* A service for accessing local clipboard data.
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*/
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angular.module('client').factory('clipboardService', ['$injector',
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function clipboardService($injector) {
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// Get required services
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var $q = $injector.get('$q');
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var service = {};
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/**
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* A div which is used to hide the clipboard textarea and remove it from
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* document flow.
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*
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* @type Element
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*/
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var clipElement = document.createElement('div');
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/**
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* The textarea that will be used to hold the local clipboard contents.
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*
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* @type Element
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*/
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var clipboardContent = document.createElement('textarea');
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// Ensure textarea is selectable but not visible
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clipElement.appendChild(clipboardContent);
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clipElement.style.position = 'fixed';
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clipElement.style.width = '1px';
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clipElement.style.height = '1px';
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clipElement.style.left = '-1px';
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clipElement.style.top = '-1px';
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clipElement.style.overflow = 'hidden';
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// Add textarea to DOM
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document.body.appendChild(clipElement);
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/**
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* Sets the local clipboard, if possible, to the given text.
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*
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* @param {String} text
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* The text to which the local clipboard should be set.
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*
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* @return {Promise}
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* A promise that will resolve if setting the clipboard was successful,
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* and will reject if it failed.
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*/
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service.setLocalClipboard = function setLocalClipboard(text) {
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var deferred = $q.defer();
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// Copy the given value into the clipboard DOM element
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clipboardContent.value = text;
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clipboardContent.select();
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// Attempt to copy data from clipboard element into local clipboard
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if (document.execCommand('copy'))
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deferred.resolve();
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else
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deferred.reject();
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// Unfocus the clipboard DOM event to avoid mobile keyboard opening
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clipboardContent.blur();
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return deferred.promise;
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};
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/**
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* Get the current value of the local clipboard.
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*
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* @return {Promise}
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* A promise that will resolve with the contents of the local clipboard
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* if getting the clipboard was successful, and will reject if it
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* failed.
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*/
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service.getLocalClipboard = function getLocalClipboard() {
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var deferred = $q.defer();
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// Wait for the next event queue run before attempting to read
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// clipboard data (in case the copy/cut has not yet completed)
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window.setTimeout(function deferredClipboardRead() {
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// Clear and select the clipboard DOM element
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clipboardContent.value = '';
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clipboardContent.focus();
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clipboardContent.select();
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// Attempt paste local clipboard into clipboard DOM element
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if (document.activeElement === clipboardContent && document.execCommand('paste'))
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deferred.resolve(clipboardContent.value);
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else
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deferred.reject();
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// Unfocus the clipboard DOM event to avoid mobile keyboard opening
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clipboardContent.blur();
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}, 100);
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return deferred.promise;
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};
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return service;
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}]);
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