| // Copyright 2013 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_MEDIA_MIDI_DISPATCHER_H_ |
| #define CONTENT_RENDERER_MEDIA_MIDI_DISPATCHER_H_ |
| |
| #include "base/id_map.h" |
| #include "base/macros.h" |
| #include "content/public/renderer/render_frame_observer.h" |
| #include "third_party/WebKit/public/platform/modules/permissions/permission.mojom.h" |
| #include "third_party/WebKit/public/web/modules/webmidi/WebMIDIClient.h" |
| |
| namespace blink { |
| class WebMIDIPermissionRequest; |
| } |
| |
| namespace content { |
| |
| // MidiDispatcher implements WebMIDIClient to handle permissions for using |
| // system exclusive messages. |
| // It works as RenderFrameObserver to keep a 1:1 relationship with a RenderFrame |
| // and make sure it has the same life cycle. |
| class MidiDispatcher : public RenderFrameObserver, |
| public blink::WebMIDIClient { |
| public: |
| explicit MidiDispatcher(RenderFrame* render_frame); |
| ~MidiDispatcher() override; |
| |
| private: |
| // RenderFrameObserver implementation. |
| void OnDestruct() override; |
| |
| // blink::WebMIDIClient implementation. |
| void requestPermission(const blink::WebMIDIPermissionRequest& request, |
| const blink::WebMIDIOptions& options) override; |
| void cancelPermissionRequest( |
| const blink::WebMIDIPermissionRequest& request) override; |
| |
| // Permission for using MIDI system has been set. |
| void OnPermissionSet(int request_id, blink::mojom::PermissionStatus status); |
| |
| // Each WebMIDIPermissionRequest object is valid until |
| // cancelSysexPermissionRequest() is called with the object, or used to call |
| // WebMIDIPermissionRequest::setIsAllowed(). |
| typedef IDMap<blink::WebMIDIPermissionRequest, IDMapOwnPointer> Requests; |
| Requests requests_; |
| |
| blink::mojom::PermissionServicePtr permission_service_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MidiDispatcher); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_MEDIA_MIDI_DISPATCHER_H_ |