| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROMECAST_RENDERER_CAST_MEDIA_LOAD_DEFERRER_H_ |
| #define CHROMECAST_RENDERER_CAST_MEDIA_LOAD_DEFERRER_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/callback_forward.h" |
| #include "base/sequence_checker.h" |
| #include "chromecast/common/mojom/media_load_deferrer.mojom.h" |
| #include "content/public/renderer/render_frame_observer.h" |
| #include "content/public/renderer/render_frame_observer_tracker.h" |
| #include "mojo/public/cpp/bindings/binding_set.h" |
| #include "services/service_manager/public/cpp/binder_registry.h" |
| |
| namespace content { |
| class RenderFrame; |
| } // namespace content |
| |
| namespace chromecast { |
| |
| // Implements deferred media load for Chromecast devices, to prevent background |
| // applications from playing unwanted media. This functionality is based on |
| // Chrome prerender. Manages its own lifetime. |
| class CastMediaLoadDeferrer |
| : public chromecast::shell::mojom::MediaLoadDeferrer, |
| public content::RenderFrameObserver, |
| public content::RenderFrameObserverTracker<CastMediaLoadDeferrer> { |
| public: |
| explicit CastMediaLoadDeferrer(content::RenderFrame* render_frame); |
| ~CastMediaLoadDeferrer() override; |
| |
| // Runs |closure| if the page/frame is switched to foreground. |
| void RunWhenInForeground(const base::RepeatingClosure& closure); |
| |
| private: |
| // content::RenderFrameObserver implementation: |
| void OnDestruct() override; |
| void OnInterfaceRequestForFrame( |
| const std::string& interface_name, |
| mojo::ScopedMessagePipeHandle* interface_pipe) override; |
| |
| // MediaLoadDeferrer implementation |
| void UpdateMediaLoadStatus(bool blocked) override; |
| |
| void OnMediaLoadDeferrerRequest( |
| chromecast::shell::mojom::MediaLoadDeferrerRequest request); |
| |
| bool render_frame_action_blocked_; |
| std::vector<base::RepeatingClosure> pending_closures_; |
| |
| mojo::BindingSet<chromecast::shell::mojom::MediaLoadDeferrer> bindings_; |
| |
| service_manager::BinderRegistry registry_; |
| |
| SEQUENCE_CHECKER(sequence_checker_); |
| |
| DISALLOW_COPY_AND_ASSIGN(CastMediaLoadDeferrer); |
| }; |
| |
| } // namespace chromecast |
| |
| #endif // CHROMECAST_RENDERER_CAST_MEDIA_LOAD_DEFERRER_H_ |