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/*!
* Deluge.EventsManager.js
*
* Copyright (c) Damien Churchill 2009-2011 <damoxc@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, write to:
* The Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the OpenSSL
* library.
* You must obey the GNU General Public License in all respects for all of
* the code used other than OpenSSL. If you modify file(s) with this
* exception, you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete
* this exception statement from your version. If you delete this exception
* statement from all source files in the program, then also delete it here.
*/
/**
* @class Deluge.EventsManager
* @extends Ext.util.Observable
* <p>Deluge.EventsManager is instantated as <tt>deluge.events</tt> and can be used by components of the UI to fire global events</p>
* Class for holding global events that occur within the UI.
*/
Ext.define('Deluge.EventsManager', {
extend: 'Ext.util.Observable',
toRegister: [],
constructor: function() {
this.on('login', this.onLogin, this);
this.callParent(arguments);
},
/**
* Append an event handler to this object.
*/
addListener: function(eventName, fn, scope, o) {
this.addEvents(eventName);
if (/[A-Z]/.test(eventName.substring(0, 1))) {
if (!deluge.client) {
this.toRegister.push(eventName);
} else {
deluge.client.web.register_event_listener(eventName);
}
} else {
this.callParent(arguments);
}
},
getEvents: function() {
deluge.client.web.get_events({
success: this.onGetEventsSuccess,
failure: this.onGetEventsFailure,
scope: this
});
},
/**
* Starts the EventsManagerManager checking for events.
*/
start: function() {
Ext.each(this.toRegister, function(eventName) {
deluge.client.web.register_event_listener(eventName);
});
this.running = true;
this.errorCount = 0;
this.getEvents();
},
/**
* Stops the EventsManagerManager checking for events.
*/
stop: function() {
this.running = false;
},
// private
onLogin: function() {
this.start();
},
onGetEventsSuccess: function(events) {
if (!events) return;
Ext.each(events, function(event) {
var name = event[0], args = event[1];
args.splice(0, 0, name);
this.fireEvent.apply(this, args);
}, this);
if (this.running) this.getEvents();
},
// private
onGetEventsFailure: function(result, error) {
// the request timed out or we had a communication failure
if (!this.running) return;
if (!error.isTimeout && this.errorCount++ >= 3) {
this.stop();
return;
}
this.getEvents();
}
});
/**
* Appends an event handler to this object (shorthand for {@link #addListener})
* @method
*/
Deluge.EventsManager.prototype.on = Deluge.EventsManager.prototype.addListener
/**
* Fires the specified event with the passed parameters (minus the
* event name).
* @method
*/
Deluge.EventsManager.prototype.fire = Deluge.EventsManager.prototype.fireEvent
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