1 // Copyright 2013 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. 4 5 #ifndef CONTENT_BROWSER_MEDIA_MIDI_DISPATCHER_HOST_H_ 6 #define CONTENT_BROWSER_MEDIA_MIDI_DISPATCHER_HOST_H_ 7 8 #include <vector> 9 10 #include "base/callback_forward.h" 11 #include "base/memory/weak_ptr.h" 12 #include "content/public/browser/web_contents_observer.h" 13 14 namespace content { 15 16 class BrowserContext; 17 18 // MidiDispatcherHost handles permissions for using system exclusive messages. 19 class MidiDispatcherHost : public WebContentsObserver { 20 public: 21 explicit MidiDispatcherHost(WebContents* web_contents); 22 virtual ~MidiDispatcherHost(); 23 24 // WebContentsObserver implementation. 25 virtual bool OnMessageReceived(const IPC::Message& message, 26 RenderFrameHost* render_frame_host) OVERRIDE; 27 28 private: 29 void OnRequestSysExPermission(RenderFrameHost* render_frame_host, 30 int bridge_id, 31 const GURL& origin, 32 bool user_gesture); 33 void OnCancelSysExPermissionRequest(RenderFrameHost* render_frame_host, 34 int bridge_id, 35 const GURL& requesting_frame); 36 void WasSysExPermissionGranted(int render_process_id, 37 int render_frame_id, 38 int bridge_id, 39 bool is_allowed); 40 41 struct PendingPermission { 42 PendingPermission(int render_process_id, 43 int render_frame_id, 44 int bridge_id); 45 ~PendingPermission(); 46 int render_process_id; 47 int render_frame_id; 48 int bridge_id; 49 base::Closure cancel; 50 }; 51 std::vector<PendingPermission> pending_permissions_; 52 53 base::WeakPtrFactory<MidiDispatcherHost> weak_factory_; 54 55 DISALLOW_COPY_AND_ASSIGN(MidiDispatcherHost); 56 }; 57 58 } // namespace content 59 60 #endif // CONTENT_BROWSER_MEDIA_MIDI_DISPATCHER_HOST_H_ 61
