chrome/browser/extensions/api/desktop_capture/desktop_capture_api.h

   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 CHROME_BROWSER_EXTENSIONS_API_DESKTOP_CAPTURE_DESKTOP_CAPTURE_API_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_DESKTOP_CAPTURE_DESKTOP_CAPTURE_API_H_
   7
   8 #include <map>
   9
  10 #include "base/memory/singleton.h"
  11 #include "chrome/browser/extensions/chrome_extension_function.h"
  12 #include "chrome/browser/media/desktop_media_list.h"
  13 #include "chrome/browser/media/desktop_media_picker.h"
  14 #include "chrome/browser/media/native_desktop_media_list.h"
  15 #include "chrome/common/extensions/api/desktop_capture.h"
  16 #include "content/public/browser/web_contents_observer.h"
  17 #include "url/gurl.h"
  18
  19 namespace extensions {
  20
  21 class DesktopCaptureChooseDesktopMediaFunction
  22     : public ChromeAsyncExtensionFunction,
  23       public content::WebContentsObserver {
  24  public:
  25   DECLARE_EXTENSION_FUNCTION("desktopCapture.chooseDesktopMedia",
  26                              DESKTOPCAPTURE_CHOOSEDESKTOPMEDIA)
  27
  28   // Factory creating DesktopMediaList and DesktopMediaPicker instances.
  29   // Used for tests to supply fake picker.
  30   class PickerFactory {
  31    public:
  32     virtual scoped_ptr<DesktopMediaList> CreateModel(bool show_screens,
  33                                                      bool show_windows) = 0;
  34     virtual scoped_ptr<DesktopMediaPicker> CreatePicker() = 0;
  35    protected:
  36     virtual ~PickerFactory() {}
  37   };
  38
  39   // Used to set PickerFactory used to create mock DesktopMediaPicker instances
  40   // for tests. Calling tests keep ownership of the factory. Can be called with
  41   // |factory| set to NULL at the end of the test.
  42   static void SetPickerFactoryForTests(PickerFactory* factory);
  43
  44   DesktopCaptureChooseDesktopMediaFunction();
  45
  46   void Cancel();
  47
  48  private:
  49   ~DesktopCaptureChooseDesktopMediaFunction() override;
  50
  51   // ExtensionFunction overrides.
  52   bool RunAsync() override;
  53
  54   // content::WebContentsObserver overrides.
  55   void WebContentsDestroyed() override;
  56
  57   void OnPickerDialogResults(content::DesktopMediaID source);
  58
  59   int request_id_;
  60
  61   // URL of page that desktop capture was requested for.
  62   GURL origin_;
  63
  64   scoped_ptr<DesktopMediaPicker> picker_;
  65 };
  66
  67 class DesktopCaptureCancelChooseDesktopMediaFunction
  68     : public ChromeSyncExtensionFunction {
  69  public:
  70   DECLARE_EXTENSION_FUNCTION("desktopCapture.cancelChooseDesktopMedia",
  71                              DESKTOPCAPTURE_CANCELCHOOSEDESKTOPMEDIA)
  72
  73   DesktopCaptureCancelChooseDesktopMediaFunction();
  74
  75  private:
  76   ~DesktopCaptureCancelChooseDesktopMediaFunction() override;
  77
  78   // ExtensionFunction overrides.
  79   bool RunSync() override;
  80 };
  81
  82 class DesktopCaptureRequestsRegistry {
  83  public:
  84   DesktopCaptureRequestsRegistry();
  85   ~DesktopCaptureRequestsRegistry();
  86
  87   static DesktopCaptureRequestsRegistry* GetInstance();
  88
  89   void AddRequest(int process_id,
  90                   int request_id,
  91                   DesktopCaptureChooseDesktopMediaFunction* handler);
  92   void RemoveRequest(int process_id, int request_id);
  93   void CancelRequest(int process_id, int request_id);
  94
  95  private:
  96   friend struct DefaultSingletonTraits<DesktopCaptureRequestsRegistry>;
  97
  98   struct RequestId {
  99     RequestId(int process_id, int request_id);
 100
 101     // Need to use RequestId as a key in std::map<>.
 102     bool operator<(const RequestId& other) const;
 103
 104     int process_id;
 105     int request_id;
 106   };
 107
 108   typedef std::map<RequestId,
 109                    DesktopCaptureChooseDesktopMediaFunction*> RequestsMap;
 110
 111   RequestsMap requests_;
 112
 113   DISALLOW_COPY_AND_ASSIGN(DesktopCaptureRequestsRegistry);
 114 };
 115
 116 }  // namespace extensions
 117
 118 #endif  // CHROME_BROWSER_EXTENSIONS_API_DESKTOP_CAPTURE_DESKTOP_CAPTURE_API_H_