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   virtual ~DesktopMediaListAsh();
  41
  42   // DesktopMediaList interface.
  43   virtual void SetUpdatePeriod(base::TimeDelta period) OVERRIDE;
  44   virtual void SetThumbnailSize(const gfx::Size& thumbnail_size) OVERRIDE;
  45   virtual void StartUpdating(DesktopMediaListObserver* observer) OVERRIDE;
  46   virtual int GetSourceCount() const OVERRIDE;
  47   virtual const Source& GetSource(int index) const OVERRIDE;
  48   virtual void SetViewDialogWindowId(
  49       content::DesktopMediaID::Id dialog_id) OVERRIDE;
  50
  51  private:
  52   // Struct used to represent sources list the model gets from the Worker.
  53   struct SourceDescription {
  54     SourceDescription(content::DesktopMediaID id, const base::string16& name);
  55
  56     content::DesktopMediaID id;
  57     base::string16 name;
  58   };
  59
  60   // Order comparator for sources. Used to sort list of sources.
  61   static bool CompareSources(const SourceDescription& a,
  62                              const SourceDescription& b);
  63
  64   void Refresh();
  65   void EnumerateWindowsForRoot(
  66       std::vector<DesktopMediaListAsh::SourceDescription>* windows,
  67       aura::Window* root_window,
  68       int container_id);
  69   void EnumerateSources(
  70       std::vector<DesktopMediaListAsh::SourceDescription>* windows);
  71   void CaptureThumbnail(content::DesktopMediaID id, aura::Window* window);
  72   void OnThumbnailCaptured(content::DesktopMediaID id,
  73                            const gfx::Image& image);
  74
  75   int source_types_;
  76
  77   // Time interval between mode updates.
  78   base::TimeDelta update_period_;
  79
  80   // Size of thumbnails generated by the model.
  81   gfx::Size thumbnail_size_;
  82
  83   // ID of the hosting dialog.
  84   content::DesktopMediaID::Id view_dialog_id_;
  85
  86   // The observer passed to StartUpdating().
  87   DesktopMediaListObserver* observer_;
  88
  89   // Current list of sources.
  90   std::vector<Source> sources_;
  91
  92   int pending_window_capture_requests_;
  93
  94   base::WeakPtrFactory<DesktopMediaListAsh> weak_factory_;
  95
  96   DISALLOW_COPY_AND_ASSIGN(DesktopMediaListAsh);
  97 };
  98
  99 #endif  // CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_ASH_H_