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/* |
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* @copyright Copyright (c) 2018 Julius Härtl <jus@bitgrid.net> |
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* |
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* @author Julius Härtl <jus@bitgrid.net> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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let loadedScripts = {}; |
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let loadedStylesheets = {}; |
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/** |
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* @namespace OCP |
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* @class Loader |
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*/ |
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export default { |
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/** |
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* Load a script asynchronously |
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* |
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* @param {string} app |
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* @param {string} file |
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* @returns {Promise} |
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*/ |
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loadScript: function(app, file) { |
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const key = app + file; |
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if (loadedScripts.hasOwnProperty(key)) { |
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return Promise.resolve(); |
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} |
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loadedScripts[key] = true; |
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return new Promise(function (resolve, reject) { |
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var scriptPath = OC.filePath(app, 'js', file); |
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var script = document.createElement('script'); |
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script.src = scriptPath; |
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script.setAttribute('nonce', btoa(OC.requestToken)); |
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script.onload = () => resolve(); |
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script.onerror = () => reject(`Failed to load script from ${scriptPath}`); |
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document.head.appendChild(script); |
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}); |
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}, |
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/** |
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* Load a stylesheet file asynchronously |
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* |
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* @param {string} app |
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* @param {string} file |
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* @returns {Promise} |
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*/ |
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loadStylesheet: function(app, file) { |
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const key = app + file; |
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if (loadedStylesheets.hasOwnProperty(key)) { |
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return Promise.resolve(); |
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} |
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loadedStylesheets[key] = true; |
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return new Promise(function (resolve, reject) { |
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var stylePath = OC.filePath(app, 'css', file); |
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var link = document.createElement('link'); |
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link.href = stylePath; |
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link.type = 'text/css'; |
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link.rel = 'stylesheet'; |
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link.onload = () => resolve(); |
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link.onerror = () => reject(`Failed to load stylesheet from ${stylePath}`); |
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document.head.appendChild(link); |
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}); |
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}, |
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} |