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57 lines
2.5 KiB
Plaintext
57 lines
2.5 KiB
Plaintext
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// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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module media_router.mojom;
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import "chrome/common/media_router/mojo/media_status.mojom";
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import "mojo/public/mojom/base/time.mojom";
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// Interface for a controller to change the current state of a media content.
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// This interface should be kept free of details specific to Media Router, so
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// that it can be moved to the media namespace and be reused for other features
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// in the future.
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interface MediaController {
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// Starts playing the media if it is paused. Is a no-op if not supported by
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// the media or the media is already playing.
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Play();
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// Pauses the media if it is playing. Is a no-op if not supported by the media
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// or the media is already paused.
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Pause();
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// Mutes the media if |mute| is true, and unmutes it if false. Is a no-op if
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// not supported by the media.
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SetMute(bool mute);
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// Changes the current volume of the media, with 1 being the highest and 0
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// being the lowest/no sound. Does not change the (un)muted state of the
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// media. Is a no-op if not supported by the media.
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SetVolume(float volume);
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// Sets the current playback position. |time| must be less than or equal to
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// the duration of the media. Is a no-op if the media doesn't support seeking.
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Seek(mojo_base.mojom.TimeDelta time);
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// Requests additional interface for commands used only for Hangouts routes.
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// TODO(crbug.com/684642): Moving this method to the MediaRouteProvider
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// interface (and modifying it to also take a MediaController& as input) can
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// result in a simpler state for MediaController. It will be easier to reason
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// about from point of view of process boundaries, and there will be
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// stronger guarantees w.r.t. MediaController API contract. The tradeoff is
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// code duplication (with CreateMediaRouteController API) and additional
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// boilerplate code in media_router_bindings.js and in the MR extension.
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// Revisit this API design after M62 when requirements for additional types
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// of controllers (e.g., mirroring) are more clear.
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ConnectHangoutsMediaRouteController(
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HangoutsMediaRouteController& controller_request);
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};
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// Controller commands specific to Hangouts routes. The interface is obtained
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// by calling MediaController::ConnectHangoutsMediaRouteController.
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interface HangoutsMediaRouteController {
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// Sets the "local present" (aka "smooth motion") mode of the Hangouts
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// associated with the MediaRoute.
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SetLocalPresent(bool local_present);
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};
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