| // Copyright (c) 2012 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 CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_ |
| #define CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_ |
| |
| #include <map> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "content/public/renderer/render_frame_observer.h" |
| #include "content/public/renderer/render_frame_observer_tracker.h" |
| #include "content/renderer/pepper/pepper_device_enumeration_host_helper.h" |
| #include "mojo/public/cpp/bindings/binding_set.h" |
| #include "ppapi/c/pp_instance.h" |
| #include "third_party/blink/public/common/mediastream/media_devices.h" |
| #include "third_party/blink/public/mojom/mediastream/media_devices.mojom.h" |
| #include "third_party/blink/public/mojom/mediastream/media_stream.mojom.h" |
| |
| namespace content { |
| class MediaStreamDeviceObserver; |
| |
| class PepperMediaDeviceManager |
| : public PepperDeviceEnumerationHostHelper::Delegate, |
| public blink::mojom::MediaDevicesListener, |
| public RenderFrameObserver, |
| public RenderFrameObserverTracker<PepperMediaDeviceManager>, |
| public base::SupportsWeakPtr<PepperMediaDeviceManager> { |
| public: |
| static base::WeakPtr<PepperMediaDeviceManager> GetForRenderFrame( |
| RenderFrame* render_frame); |
| ~PepperMediaDeviceManager() override; |
| |
| // PepperDeviceEnumerationHostHelper::Delegate implementation: |
| void EnumerateDevices(PP_DeviceType_Dev type, |
| const DevicesCallback& callback) override; |
| size_t StartMonitoringDevices(PP_DeviceType_Dev type, |
| const DevicesCallback& callback) override; |
| void StopMonitoringDevices(PP_DeviceType_Dev type, |
| size_t subscription_id) override; |
| |
| // blink::mojom::MediaDevicesListener implementation. |
| void OnDevicesChanged( |
| blink::MediaDeviceType type, |
| const blink::WebMediaDeviceInfoArray& device_infos) override; |
| |
| typedef base::Callback<void(int /* request_id */, |
| bool /* succeeded */, |
| const std::string& /* label */)> |
| OpenDeviceCallback; |
| |
| // Opens the specified device. The request ID passed into the callback will be |
| // the same as the return value. If successful, the label passed into the |
| // callback identifies a audio/video steam, which can be used to call |
| // CloseDevice() and GetSesssionID(). |
| int OpenDevice(PP_DeviceType_Dev type, |
| const std::string& device_id, |
| PP_Instance pp_instance, |
| const OpenDeviceCallback& callback); |
| // Cancels an request to open device, using the request ID returned by |
| // OpenDevice(). It is guaranteed that the callback passed into OpenDevice() |
| // won't be called afterwards. |
| void CancelOpenDevice(int request_id); |
| void CloseDevice(const std::string& label); |
| // Gets audio/video session ID given a label. |
| int GetSessionID(PP_DeviceType_Dev type, const std::string& label); |
| |
| // Stream type conversion. |
| static blink::MediaStreamType FromPepperDeviceType(PP_DeviceType_Dev type); |
| |
| private: |
| explicit PepperMediaDeviceManager(RenderFrame* render_frame); |
| |
| // RenderFrameObserver implementation. |
| void OnDestruct() override; |
| |
| // Called by StopEnumerateDevices() after returing to the event loop, to avoid |
| // a reentrancy problem. |
| void StopEnumerateDevicesDelayed(int request_id); |
| |
| void OnDeviceOpened(int request_id, |
| bool success, |
| const std::string& label, |
| const blink::MediaStreamDevice& device); |
| |
| void DevicesEnumerated( |
| const DevicesCallback& callback, |
| blink::MediaDeviceType type, |
| const std::vector<blink::WebMediaDeviceInfoArray>& enumeration, |
| std::vector<blink::mojom::VideoInputDeviceCapabilitiesPtr> |
| video_input_capabilities, |
| std::vector<blink::mojom::AudioInputDeviceCapabilitiesPtr> |
| audio_input_capabilities); |
| |
| const blink::mojom::MediaStreamDispatcherHostPtr& |
| GetMediaStreamDispatcherHost(); |
| MediaStreamDeviceObserver* GetMediaStreamDeviceObserver() const; |
| const blink::mojom::MediaDevicesDispatcherHostPtr& |
| GetMediaDevicesDispatcher(); |
| |
| int next_id_ = 1; |
| using OpenCallbackMap = std::map<int, OpenDeviceCallback>; |
| OpenCallbackMap open_callbacks_; |
| |
| using Subscription = std::pair<size_t, DevicesCallback>; |
| using SubscriptionList = std::vector<Subscription>; |
| SubscriptionList device_change_subscriptions_[blink::NUM_MEDIA_DEVICE_TYPES]; |
| |
| blink::mojom::MediaStreamDispatcherHostPtr dispatcher_host_; |
| blink::mojom::MediaDevicesDispatcherHostPtr media_devices_dispatcher_; |
| |
| mojo::BindingSet<blink::mojom::MediaDevicesListener> bindings_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PepperMediaDeviceManager); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_ |