123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167 |
- /**
- * @copyright 2012 Robin Appelman icewind1991@gmail.com
- *
- * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author John Molakvoæ <skjnldsv@protonmail.com>
- * @author Lukas Reschke <lukas@statuscode.ch>
- * @author Robin Appelman <robin@icewind.nl>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <vincent@nextcloud.com>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
- /* eslint-disable */
- import $ from 'jquery'
-
- import { getToken } from './requesttoken'
-
- /**
- * Create a new event source
- * @param {string} src
- * @param {object} [data] to be send as GET
- *
- * @constructs OCEventSource
- */
- const OCEventSource = function(src, data) {
- var dataStr = ''
- var name
- var joinChar
- this.typelessListeners = []
- this.closed = false
- this.listeners = {}
- if (data) {
- for (name in data) {
- dataStr += name + '=' + encodeURIComponent(data[name]) + '&'
- }
- }
- dataStr += 'requesttoken=' + encodeURIComponent(getToken())
- if (!this.useFallBack && typeof EventSource !== 'undefined') {
- joinChar = '&'
- if (src.indexOf('?') === -1) {
- joinChar = '?'
- }
- this.source = new EventSource(src + joinChar + dataStr)
- this.source.onmessage = function(e) {
- for (var i = 0; i < this.typelessListeners.length; i++) {
- this.typelessListeners[i](JSON.parse(e.data))
- }
- }.bind(this)
- } else {
- var iframeId = 'oc_eventsource_iframe_' + OCEventSource.iframeCount
- OCEventSource.fallBackSources[OCEventSource.iframeCount] = this
- this.iframe = $('<iframe/>')
- this.iframe.attr('id', iframeId)
- this.iframe.hide()
-
- joinChar = '&'
- if (src.indexOf('?') === -1) {
- joinChar = '?'
- }
- this.iframe.attr('src', src + joinChar + 'fallback=true&fallback_id=' + OCEventSource.iframeCount + '&' + dataStr)
- $('body').append(this.iframe)
- this.useFallBack = true
- OCEventSource.iframeCount++
- }
- // add close listener
- this.listen('__internal__', function(data) {
- if (data === 'close') {
- this.close()
- }
- }.bind(this))
- }
- OCEventSource.fallBackSources = []
- OCEventSource.iframeCount = 0// number of fallback iframes
- OCEventSource.fallBackCallBack = function(id, type, data) {
- OCEventSource.fallBackSources[id].fallBackCallBack(type, data)
- }
- OCEventSource.prototype = {
- typelessListeners: [],
- iframe: null,
- listeners: {}, // only for fallback
- useFallBack: false,
- /**
- * Fallback callback for browsers that don't have the
- * native EventSource object.
- *
- * Calls the registered listeners.
- *
- * @private
- * @param {String} type event type
- * @param {Object} data received data
- */
- fallBackCallBack: function(type, data) {
- var i
- // ignore messages that might appear after closing
- if (this.closed) {
- return
- }
- if (type) {
- if (typeof this.listeners.done !== 'undefined') {
- for (i = 0; i < this.listeners[type].length; i++) {
- this.listeners[type][i](data)
- }
- }
- } else {
- for (i = 0; i < this.typelessListeners.length; i++) {
- this.typelessListeners[i](data)
- }
- }
- },
- lastLength: 0, // for fallback
- /**
- * Listen to a given type of events.
- *
- * @param {String} type event type
- * @param {Function} callback event callback
- */
- listen: function(type, callback) {
- if (callback && callback.call) {
-
- if (type) {
- if (this.useFallBack) {
- if (!this.listeners[type]) {
- this.listeners[type] = []
- }
- this.listeners[type].push(callback)
- } else {
- this.source.addEventListener(type, function(e) {
- if (typeof e.data !== 'undefined') {
- callback(JSON.parse(e.data))
- } else {
- callback('')
- }
- }, false)
- }
- } else {
- this.typelessListeners.push(callback)
- }
- }
- },
- /**
- * Closes this event source.
- */
- close: function() {
- this.closed = true
- if (typeof this.source !== 'undefined') {
- this.source.close()
- }
- }
- }
-
- export default OCEventSource
|