Add a new XPCOM implemented by JavaScript

AndroidPresentationDeviceProvider.js

/* 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/. */
/* jshint esnext:true, globalstrict:true, moz:true, undef:true, unused:true */
/* globals Components, dump */
"use strict";

dump("AndroidPresentationDeviceProvider.js loaded.");

const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;

function debug(str) {
  dump("-*- AndroidPresentationDeviceProvider -*-: " + str + "\n");
}

function AndroidPresentationDeviceProvider() {
  debug("AndroidPresentationDeviceProvider created!");
}

AndroidPresentationDeviceProvider.prototype = {
  _listener: null,

  set listener(aListener) {
    this._listener = aListener;
  },

  get listener() {
    return this._listener;
  },

  forceDiscovery: function APDP_forceDiscovery() {},

  observe: function APDP_observe(aSubject, aTopic, aData) {
    var device = JSON.parse(aData);
    debug(aData);
    if (aTopic == "PresentationDevice:Add") {

    } else if (aTopic == "PresentationDevice:Remove") {

    }
  },

  classID: Components.ID("{7394f24c-dbc3-48c8-8a47-cd10169b7c6b}"),
  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
                                         Ci.nsIPresentationDeviceProvider]),
};

this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AndroidPresentationDeviceProvider]);

AndroidPresentationDeviceProvider.manifest

# AndroidPresentationDeviceProvider.js
component {7394f24c-dbc3-48c8-8a47-cd10169b7c6b} AndroidPresentationDeviceProvider.js
contract @mozilla.org/presentation/android-presentation-device-provider;1 {7394f24c-dbc3-48c8-8a47-cd10169b7c6b}
category presentation-device-provider AndroidPresentationDeviceProvider @mozilla.org/presentation/android-presentation-device-provider;1

mobile_android_installer_package-manifest.in

@BINPATH@/components/AndroidPresentationDeviceProvicer.manifest
@BINPATH@/components/AndroidPresentationDeviceProvicer.js

moz.build

# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
# vim: set filetype=python:
# 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/.

EXTRA_COMPONENTS += [
    'BuiltinProviders.manifest',
    'PresentationControlService.js'
]

UNIFIED_SOURCES += [
    'MulticastDNSDeviceProvider.cpp',
    'PresentationDeviceProviderModule.cpp',
]

EXTRA_JS_MODULES.presentation += [
    'ControllerStateMachine.jsm',
    'ReceiverStateMachine.jsm',
    'StateMachineHelper.jsm',
]

if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'android':
    EXTRA_COMPONENTS += [
        # For android presentation device
        'AndroidPresentationDeviceProvider.js',
        'AndroidPresentationDeviceProvider.manifest',
        # for TV 2.5 device backward capability
        'LegacyPresentationControlService.js',
        'LegacyProviders.manifest',
    ]

    UNIFIED_SOURCES += [
        'LegacyMDNSDeviceProvider.cpp',
    ]

if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gonk':
    UNIFIED_SOURCES += [
        'DisplayDeviceProvider.cpp',
    ]

include('/ipc/chromium/chromium-config.mozbuild')
FINAL_LIBRARY = 'xul'