1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
7 define('media_router_bindings', [
8 'mojo/public/js/bindings',
10 'content/public/renderer/service_provider',
11 'chrome/browser/media/router/media_router.mojom',
12 'extensions/common/mojo/keep_alive.mojom',
13 'mojo/public/js/connection',
14 'mojo/public/js/router',
25 * Converts a media sink to a MediaSink Mojo object.
26 * @param {!MediaSink} sink A media sink.
27 * @return {!mediaRouterMojom.MediaSink} A Mojo MediaSink object.
29 function sinkToMojo_(sink) {
30 return new mediaRouterMojom.MediaSink({
31 'name': sink.friendlyName,
33 'icon_type': sinkIconTypeToMojo(sink.iconType),
34 'is_launching': sink.isLaunching_,
39 * Converts a media sink's icon type to a MediaSink.IconType Mojo object.
40 * @param {!MediaSink.IconType} type A media sink's icon type.
41 * @return {!mediaRouterMojom.MediaSink.IconType} A Mojo MediaSink.IconType
44 function sinkIconTypeToMojo(type) {
47 return mediaRouterMojom.MediaSink.IconType.CAST;
49 return mediaRouterMojom.MediaSink.IconType.CAST_AUDIO;
51 return mediaRouterMojom.MediaSink.IconType.GENERIC;
53 return mediaRouterMojom.MediaSink.IconType.HANGOUT;
55 console.error('Unknown sink icon type : ' + type);
56 return mediaRouterMojom.MediaSink.IconType.GENERIC;
61 * Returns a Mojo MediaRoute object given a MediaRoute and a
63 * @param {!MediaRoute} route
64 * @return {!mojo.MediaRoute}
66 function routeToMojo_(route) {
67 return new mediaRouterMojom.MediaRoute({
68 'media_route_id': route.id,
69 'media_source': route.mediaSource,
70 'media_sink_id': route.sinkId,
71 'description': route.description,
72 'icon_url': route.iconUrl,
73 'is_local': route.isLocal,
74 'custom_controller_path': route.customControllerPath,
75 // TODO(imcheng): Remove logic when extension always sets the field.
76 'for_display': route.forDisplay == undefined ? true : route.forDisplay
81 * Converts a route message to a RouteMessage Mojo object.
82 * @param {!RouteMessage} message
83 * @return {!mediaRouterMojom.RouteMessage} A Mojo RouteMessage object.
85 function messageToMojo_(message) {
86 if ("string" == typeof message.message) {
87 return new mediaRouterMojom.RouteMessage({
88 'type': mediaRouterMojom.RouteMessage.Type.TEXT,
89 'message': message.message,
92 return new mediaRouterMojom.RouteMessage({
93 'type': mediaRouterMojom.RouteMessage.Type.BINARY,
94 'data': message.message,
100 * Creates a new MediaRouter.
101 * Converts a route struct to its Mojo form.
102 * @param {!MediaRouterService} service
105 function MediaRouter(service) {
107 * The Mojo service proxy. Allows extension code to call methods that reside
109 * @type {!MediaRouterService}
111 this.service_ = service;
114 * The provider manager service delegate. Its methods are called by the
115 * browser-resident Mojo service.
116 * @type {!MediaRouter}
118 this.mrpm_ = new MediaRouteProvider(this);
121 * The message pipe that connects the Media Router to mrpm_ across
122 * browser/renderer IPC boundaries. Object must remain in scope for the
123 * lifetime of the connection to prevent the connection from closing
125 * @type {!mojo.MessagePipe}
127 this.pipe_ = core.createMessagePipe();
130 * Handle to a KeepAlive service object, which prevents the extension from
131 * being suspended as long as it remains in scope.
134 this.keepAlive_ = null;
137 * The stub used to bind the service delegate to the Mojo interface.
138 * Object must remain in scope for the lifetime of the connection to
139 * prevent the connection from closing automatically.
140 * @type {!mojom.MediaRouter}
142 this.mediaRouteProviderStub_ = connector.bindHandleToStub(
143 this.pipe_.handle0, mediaRouterMojom.MediaRouteProvider);
145 // Link mediaRouteProviderStub_ to the provider manager delegate.
146 bindings.StubBindings(this.mediaRouteProviderStub_).delegate = this.mrpm_;
150 * Registers the Media Router Provider Manager with the Media Router.
151 * @return {!Promise<string>} Instance ID for the Media Router.
153 MediaRouter.prototype.start = function() {
154 return this.service_.registerMediaRouteProvider(this.pipe_.handle1).then(
156 return result.instance_id;
161 * Sets the service delegate methods.
162 * @param {Object} handlers
164 MediaRouter.prototype.setHandlers = function(handlers) {
165 this.mrpm_.setHandlers(handlers);
169 * The keep alive status.
172 MediaRouter.prototype.getKeepAlive = function() {
173 return this.keepAlive_ != null;
177 * Called by the provider manager when a sink list for a given source is
179 * @param {!string} sourceUrn
180 * @param {!Array<!MediaSink>} sinks
182 MediaRouter.prototype.onSinksReceived = function(sourceUrn, sinks) {
183 this.service_.onSinksReceived(sourceUrn, sinks.map(sinkToMojo_));
187 * Called by the provider manager to keep the extension from suspending
188 * if it enters a state where suspension is undesirable (e.g. there is an
189 * active MediaRoute.)
190 * If keepAlive is true, the extension is kept alive.
191 * If keepAlive is false, the extension is allowed to suspend.
192 * @param {boolean} keepAlive
194 MediaRouter.prototype.setKeepAlive = function(keepAlive) {
195 if (keepAlive === false && this.keepAlive_) {
196 this.keepAlive_.close();
197 this.keepAlive_ = null;
198 } else if (keepAlive === true && !this.keepAlive_) {
199 this.keepAlive_ = new routerModule.Router(
200 serviceProvider.connectToService(
201 keepAliveMojom.KeepAlive.name));
206 * Called by the provider manager to send an issue from a media route
207 * provider to the Media Router, to show the user.
208 * @param {!Object} issue The issue object.
210 MediaRouter.prototype.onIssue = function(issue) {
211 function issueSeverityToMojo_(severity) {
214 return mediaRouterMojom.Issue.Severity.FATAL;
216 return mediaRouterMojom.Issue.Severity.WARNING;
218 return mediaRouterMojom.Issue.Severity.NOTIFICATION;
220 console.error('Unknown issue severity: ' + severity);
221 return mediaRouterMojom.Issue.Severity.NOTIFICATION;
225 function issueActionToMojo_(action) {
228 return mediaRouterMojom.Issue.ActionType.OK;
230 return mediaRouterMojom.Issue.ActionType.CANCEL;
232 return mediaRouterMojom.Issue.ActionType.DISMISS;
234 return mediaRouterMojom.Issue.ActionType.LEARN_MORE;
236 console.error('Unknown issue action type : ' + action);
237 return mediaRouterMojom.Issue.ActionType.OK;
241 var secondaryActions = (issue.secondaryActions || []).map(function(e) {
242 return issueActionToMojo_(e);
244 this.service_.onIssue(new mediaRouterMojom.Issue({
245 'route_id': issue.routeId,
246 'severity': issueSeverityToMojo_(issue.severity),
247 'title': issue.title,
248 'message': issue.message,
249 'default_action': issueActionToMojo_(issue.defaultAction),
250 'secondary_actions': secondaryActions,
251 'help_url': issue.helpUrl,
252 'is_blocking': issue.isBlocking
257 * Called by the provider manager when the set of active routes
259 * @param {!Array<MediaRoute>} routes The active set of media routes.
261 MediaRouter.prototype.onRoutesUpdated = function(routes) {
262 this.service_.onRoutesUpdated(routes.map(routeToMojo_));
266 * Object containing callbacks set by the provider manager.
267 * TODO(mfoltz): Better named ProviderManagerDelegate?
272 function MediaRouterHandlers() {
274 * @type {function(!string, !string, !string, !string, !number}
276 this.createRoute = null;
279 * @type {function(!string, !string, !string, !number)}
281 this.joinRoute = null;
284 * @type {function(string)}
286 this.closeRoute = null;
289 * @type {function(string)}
291 this.startObservingMediaSinks = null;
294 * @type {function(string)}
296 this.stopObservingMediaSinks = null;
299 * @type {function(string, string): Promise}
301 this.sendRouteMessage = null;
304 * @type {function(string, Uint8Array): Promise}
306 this.sendRouteBinaryMessage = null;
309 * @type {function(string):
310 * Promise.<{messages: Array.<RouteMessage>, error: boolean}>}
312 this.listenForRouteMessages = null;
315 * @type {function(string)}
317 this.stopListeningForRouteMessages = null;
320 * @type {function(string)}
322 this.onPresentationSessionDetached = null;
327 this.startObservingMediaRoutes = null;
332 this.stopObservingMediaRoutes = null;
336 * Routes calls from Media Router to the provider manager extension.
337 * Registered with the MediaRouter stub.
338 * @param {!MediaRouter} MediaRouter proxy to call into the
339 * Media Router mojo interface.
342 function MediaRouteProvider(mediaRouter) {
343 mediaRouterMojom.MediaRouteProvider.stubClass.call(this);
346 * Object containing JS callbacks into Provider Manager code.
347 * @type {!MediaRouterHandlers}
349 this.handlers_ = new MediaRouterHandlers();
352 * Proxy class to the browser's Media Router Mojo service.
353 * @type {!MediaRouter}
355 this.mediaRouter_ = mediaRouter;
357 MediaRouteProvider.prototype = Object.create(
358 mediaRouterMojom.MediaRouteProvider.stubClass.prototype);
361 * Sets the callback handler used to invoke methods in the provider manager.
363 * TODO(mfoltz): Rename to something more explicit?
364 * @param {!MediaRouterHandlers} handlers
366 MediaRouteProvider.prototype.setHandlers = function(handlers) {
367 this.handlers_ = handlers;
368 var requiredHandlers = [
369 'stopObservingMediaRoutes',
370 'startObservingMediaRoutes',
372 'sendRouteBinaryMessage',
373 'listenForRouteMessages',
374 'stopListeningForRouteMessages',
375 'onPresentationSessionDetached',
379 'stopObservingMediaSinks',
380 'startObservingMediaRoutes'
382 requiredHandlers.forEach(function(nextHandler) {
383 if (handlers[nextHandler] === undefined) {
384 console.error(nextHandler + ' handler not registered.');
390 * Starts querying for sinks capable of displaying the media source
391 * designated by |sourceUrn|. Results are returned by calling
393 * @param {!string} sourceUrn
395 MediaRouteProvider.prototype.startObservingMediaSinks =
396 function(sourceUrn) {
397 this.handlers_.startObservingMediaSinks(sourceUrn);
401 * Stops querying for sinks capable of displaying |sourceUrn|.
402 * @param {!string} sourceUrn
404 MediaRouteProvider.prototype.stopObservingMediaSinks =
405 function(sourceUrn) {
406 this.handlers_.stopObservingMediaSinks(sourceUrn);
410 * Requests that |sinkId| render the media referenced by |sourceUrn|. If the
411 * request is from the Presentation API, then origin and tabId will
413 * @param {!string} sourceUrn Media source to render.
414 * @param {!string} sinkId Media sink ID.
415 * @param {!string} presentationId Presentation ID from the site
416 * requesting presentation. TODO(mfoltz): Remove.
417 * @param {!string} origin Origin of site requesting presentation.
418 * @param {!number} tabId ID of tab requesting presentation.
419 * @return {!Promise.<!Object>} A Promise resolving to an object describing
420 * the newly created media route, or rejecting with an error message on
423 MediaRouteProvider.prototype.createRoute =
424 function(sourceUrn, sinkId, presentationId, origin, tabId) {
425 return this.handlers_.createRoute(
426 sourceUrn, sinkId, presentationId, origin, tabId)
427 .then(function(route) {
428 return {route: routeToMojo_(route)};
430 .catch(function(err) {
431 return {error_text: 'Error creating route: ' + err.message};
436 * Handles a request via the Presentation API to join an existing route given
437 * by |sourceUrn| and |presentationId|. |origin| and |tabId| are used for
438 * validating same-origin/tab scope.
439 * @param {!string} sourceUrn Media source to render.
440 * @param {!string} presentationId Presentation ID to join.
441 * @param {!string} origin Origin of site requesting join.
442 * @param {!number} tabId ID of tab requesting join.
443 * @return {!Promise.<!Object>} A Promise resolving to an object describing
444 * the newly created media route, or rejecting with an error message on
447 MediaRouteProvider.prototype.joinRoute =
448 function(sourceUrn, presentationId, origin, tabId) {
449 return this.handlers_.joinRoute(sourceUrn, presentationId, origin, tabId)
450 .then(function(newRoute) {
451 return {route: routeToMojo_(newRoute)};
454 return {error_text: 'Error joining route: ' + err.message};
459 * Closes the route specified by |routeId|.
460 * @param {!string} routeId
462 MediaRouteProvider.prototype.closeRoute = function(routeId) {
463 this.handlers_.closeRoute(routeId);
467 * Posts a message to the route designated by |routeId|.
468 * @param {!string} routeId
469 * @param {!string} message
470 * @return {!Promise.<boolean>} Resolved with true if the message was sent,
471 * or false on failure.
473 MediaRouteProvider.prototype.sendRouteMessage = function(
475 return this.handlers_.sendRouteMessage(routeId, message)
477 return {'sent': true};
479 return {'sent': false};
484 * Sends a binary message to the route designated by |routeId|.
485 * @param {!string} routeId
486 * @param {!Uint8Array} data
487 * @return {!Promise.<boolean>} Resolved with true if the data was sent,
488 * or false on failure.
490 MediaRouteProvider.prototype.sendRouteBinaryMessage = function(
492 return this.handlers_.sendRouteBinaryMessage(routeId, data)
494 return {'sent': true};
496 return {'sent': false};
501 * Listen for next batch of messages from one of the routeIds.
502 * @param {!string} routeId
503 * @return {!Promise.<{messages: Array.<RouteMessage>, error: boolean}>}
504 * Resolved with a list of messages, and a boolean indicating if an error
507 MediaRouteProvider.prototype.listenForRouteMessages = function(routeId) {
508 return this.handlers_.listenForRouteMessages(routeId)
509 .then(function(messages) {
510 return {'messages': messages.map(messageToMojo_), 'error': false};
512 return {'messages': [], 'error': true};
517 * If there is an outstanding |listenForRouteMessages| promise for
518 * |routeId|, resolve that promise with an empty array.
519 * @param {!string} routeId
521 MediaRouteProvider.prototype.stopListeningForRouteMessages = function(
523 return this.handlers_.stopListeningForRouteMessages(routeId);
527 * Indicates that the presentation session that was connected to |routeId| is
528 * no longer connected to it.
529 * @param {!string} routeId
531 MediaRouteProvider.prototype.onPresentationSessionDetached = function(
533 this.handlers_.onPresentationSessionDetached(routeId);
537 * Requests that the provider manager start sending information about active
538 * media routes to the Media Router.
540 MediaRouteProvider.prototype.startObservingMediaRoutes = function() {
541 this.handlers_.startObservingMediaRoutes();
545 * Requests that the provider manager stop sending information about active
546 * media routes to the Media Router.
548 MediaRouteProvider.prototype.stopObservingMediaRoutes = function() {
549 this.handlers_.stopObservingMediaRoutes();
552 mediaRouter = new MediaRouter(connector.bindHandleToProxy(
553 serviceProvider.connectToService(
554 mediaRouterMojom.MediaRouter.name),
555 mediaRouterMojom.MediaRouter));