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// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
this.EXPORTED_SYMBOLS = ["MediaPlayerApp"];
const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/Messaging.jsm");
var log = Cu.import("resource://gre/modules/AndroidLog.jsm", {}).AndroidLog.d.bind(null, "MediaPlayerApp");
// Helper function for sending commands to Java.
function send(type, data, callback) {
let msg = {
type: type
};
for (let i in data) {
msg[i] = data[i];
}
Messaging.sendRequestForResult(msg)
.then(result => callback(result, null),
error => callback(null, error));
}
/* These apps represent players supported natively by the platform. This class will proxy commands
* to native controls */
function MediaPlayerApp(service) {
this.service = service;
this.location = service.location;
this.id = service.uuid;
}
MediaPlayerApp.prototype = {
start: function start(callback) {
send("MediaPlayer:Start", { id: this.id }, (result, err) => {
if (callback) {
callback(err == null);
}
});
},
stop: function stop(callback) {
send("MediaPlayer:Stop", { id: this.id }, (result, err) => {
if (callback) {
callback(err == null);
}
});
},
remoteMedia: function remoteMedia(callback, listener) {
if (callback) {
callback(new RemoteMedia(this.id, listener));
}
},
mirror: function mirror(callback) {
send("MediaPlayer:Mirror", { id: this.id }, (result, err) => {
if (callback) {
callback(err == null);
}
});
}
}
/* RemoteMedia provides a proxy to a native media player session.
*/
function RemoteMedia(id, listener) {
this._id = id;
this._listener = listener;
if ("onRemoteMediaStart" in this._listener) {
Services.tm.mainThread.dispatch((function() {
this._listener.onRemoteMediaStart(this);
}).bind(this), Ci.nsIThread.DISPATCH_NORMAL);
}
}
RemoteMedia.prototype = {
shutdown: function shutdown() {
Services.obs.removeObserver(this, "MediaPlayer:Playing");
Services.obs.removeObserver(this, "MediaPlayer:Paused");
this._send("MediaPlayer:End", {}, (result, err) => {
this._status = "shutdown";
if ("onRemoteMediaStop" in this._listener) {
this._listener.onRemoteMediaStop(this);
}
});
},
play: function play() {
this._send("MediaPlayer:Play", {}, (result, err) => {
if (err) {
Cu.reportError("Can't play " + err);
this.shutdown();
return;
}
this._status = "started";
});
},
pause: function pause() {
this._send("MediaPlayer:Pause", {}, (result, err) => {
if (err) {
Cu.reportError("Can't pause " + err);
this.shutdown();
return;
}
this._status = "paused";
});
},
load: function load(aData) {
this._send("MediaPlayer:Load", aData, (result, err) => {
if (err) {
Cu.reportError("Can't load " + err);
this.shutdown();
return;
}
Services.obs.addObserver(this, "MediaPlayer:Playing", false);
Services.obs.addObserver(this, "MediaPlayer:Paused", false);
this._status = "started";
})
},
get status() {
return this._status;
},
observe: function (aSubject, aTopic, aData) {
switch (aTopic) {
case "MediaPlayer:Playing":
if (this._status !== "started") {
this._status = "started";
if ("onRemoteMediaStatus" in this._listener) {
this._listener.onRemoteMediaStatus(this);
}
}
break;
case "MediaPlayer:Paused":
if (this._status !== "paused") {
this._status = "paused";
if ("onRemoteMediaStatus" in this._listener) {
this._listener.onRemoteMediaStatus(this);
}
}
break;
default:
break;
}
},
_send: function(msg, data, callback) {
data.id = this._id;
send(msg, data, callback);
}
}
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