82 lines
2.5 KiB
JavaScript
82 lines
2.5 KiB
JavaScript
/**
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* @copyright Copyright (c) 2018 Julius Härtl <jus@bitgrid.net>
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*
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author John Molakvoæ <skjnldsv@protonmail.com>
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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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const loadedScripts = {}
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const 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 the app name
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* @param {string} file the script file name
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* @returns {Promise}
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*/
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loadScript(app, file) {
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const key = app + file
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if (Object.prototype.hasOwnProperty.call(loadedScripts, 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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const scriptPath = OC.filePath(app, 'js', file)
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const 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(new Error(`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 the app name
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* @param {string} file the script file name
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* @returns {Promise}
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*/
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loadStylesheet(app, file) {
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const key = app + file
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if (Object.prototype.hasOwnProperty.call(loadedStylesheets, 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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const stylePath = OC.filePath(app, 'css', file)
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const 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(new Error(`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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}
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