chrome/browser/media/desktop_media_list_ash.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_MEDIA_DESKTOP_MEDIA_LIST_ASH_H_
   6 #define CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_ASH_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/sequenced_task_runner.h"
  12 #include "chrome/browser/media/desktop_media_list.h"
  13 #include "content/public/browser/desktop_media_id.h"
  14
  15 class SkBitmap;
  16
  17 namespace aura {
  18 class Window;
  19 }
  20
  21 namespace cc {
  22 class CopyOutputResult;
  23 class SingleReleaseCallback;
  24 }
  25
  26 namespace gfx {
  27 class Image;
  28 }
  29
  30 // Implementation of DesktopMediaList that shows native screens and
  31 // native windows.
  32 class DesktopMediaListAsh : public DesktopMediaList {
  33  public:
  34   enum SourceTypes {
  35     SCREENS = 1,
  36     WINDOWS = 2,
  37   };
  38
  39   explicit DesktopMediaListAsh(int source_types);
  40   ~DesktopMediaListAsh() override;
  41
  42   // DesktopMediaList interface.
  43   void SetUpdatePeriod(base::TimeDelta period) override;
  44   void SetThumbnailSize(const gfx::Size& thumbnail_size) override;
  45   void StartUpdating(DesktopMediaListObserver* observer) override;
  46   int GetSourceCount() const override;
  47   const Source& GetSource(int index) const override;
  48   void SetViewDialogWindowId(content::DesktopMediaID::Id dialog_id) override;
  49
  50  private:
  51   // Struct used to represent sources list the model gets from the Worker.
  52   struct SourceDescription {
  53     SourceDescription(content::DesktopMediaID id, const base::string16& name);
  54
  55     content::DesktopMediaID id;
  56     base::string16 name;
  57   };
  58
  59   // Order comparator for sources. Used to sort list of sources.
  60   static bool CompareSources(const SourceDescription& a,
  61                              const SourceDescription& b);
  62
  63   void Refresh();
  64   void EnumerateWindowsForRoot(
  65       std::vector<DesktopMediaListAsh::SourceDescription>* windows,
  66       aura::Window* root_window,
  67       int container_id);
  68   void EnumerateSources(
  69       std::vector<DesktopMediaListAsh::SourceDescription>* windows);
  70   void CaptureThumbnail(content::DesktopMediaID id, aura::Window* window);
  71   void OnThumbnailCaptured(content::DesktopMediaID id,
  72                            const gfx::Image& image);
  73
  74   int source_types_;
  75
  76   // Time interval between mode updates.
  77   base::TimeDelta update_period_;
  78
  79   // Size of thumbnails generated by the model.
  80   gfx::Size thumbnail_size_;
  81
  82   // ID of the hosting dialog.
  83   content::DesktopMediaID::Id view_dialog_id_;
  84
  85   // The observer passed to StartUpdating().
  86   DesktopMediaListObserver* observer_;
  87
  88   // Current list of sources.
  89   std::vector<Source> sources_;
  90
  91   int pending_window_capture_requests_;
  92
  93   base::WeakPtrFactory<DesktopMediaListAsh> weak_factory_;
  94
  95   DISALLOW_COPY_AND_ASSIGN(DesktopMediaListAsh);
  96 };
  97
  98 #endif  // CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_ASH_H_