Rename DesktopMediaPickerModel[Impl]->[Native]DesktopMediaList

chrome/browser/media/native_desktop_media_list.h

Index: chrome/browser/media/native_desktop_media_list.h
diff --git a/chrome/browser/media/native_desktop_media_list.h b/chrome/browser/media/native_desktop_media_list.h
new file mode 100644
index 0000000000000000000000000000000000000000..a23374f08d00685f60945520b9419e8735d25d66
--- /dev/null
+++ b/chrome/browser/media/native_desktop_media_list.h
@@ -0,0 +1,101 @@
+// 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 CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
+#define CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/sequenced_task_runner.h"
+#include "chrome/browser/media/desktop_media_list.h"
+#include "content/public/common/desktop_media_id.h"
+#include "ui/gfx/image/image_skia.h"
+
+namespace webrtc {
+class ScreenCapturer;
+class WindowCapturer;
+}
+
+// Implementation of DesktopMediaList that shows native screens and
+// native windows.
+class NativeDesktopMediaList : public DesktopMediaList {
+ public:
+  // Caller may pass NULL for either of the arguments in case when only some
+  // types of sources the model should be populated with (e.g. it will only
+  // contain windows, if |screen_capturer| is NULL).
+  NativeDesktopMediaList(
+      scoped_ptr<webrtc::ScreenCapturer> screen_capturer,
+      scoped_ptr<webrtc::WindowCapturer> window_capturer);
+  virtual ~NativeDesktopMediaList();
+
+  // DesktopMediaList interface.
+  virtual void SetUpdatePeriod(base::TimeDelta period) OVERRIDE;
+  virtual void SetThumbnailSize(const gfx::Size& thumbnail_size) OVERRIDE;
+  virtual void StartUpdating(DesktopMediaListObserver* observer) OVERRIDE;
+  virtual int GetSourceCount() const OVERRIDE;
+  virtual const Source& GetSource(int index) const OVERRIDE;
+  virtual void SetViewDialogWindowId(
+      content::DesktopMediaID::Id dialog_id) OVERRIDE;
+
+ private:
+  class Worker;
+  friend class Worker;
+
+  // Struct used to represent sources list the model gets from the Worker.
+  struct SourceDescription {
+    SourceDescription(content::DesktopMediaID id, const string16& name);
+
+    content::DesktopMediaID id;
+    string16 name;
+  };
+
+  // Order comparator for sources. Used to sort list of sources.
+  static bool CompareSources(const SourceDescription& a,
+                             const SourceDescription& b);
+
+  // Post a task for the |worker_| to update list of windows and get thumbnails.
+  void Refresh();
+
+  // Called by |worker_| to refresh the model. First it posts tasks for
+  // OnSourcesList() with the fresh list of sources, then follows with
+  // OnSourceThumbnail() for each changed thumbnail and then calls
+  // OnRefreshFinished() at the end.
+  void OnSourcesList(const std::vector<SourceDescription>& sources);
+  void OnSourceThumbnail(int index, const gfx::ImageSkia& thumbnail);
+  void OnRefreshFinished();
+
+  // Capturers specified in SetCapturers() and passed to the |worker_| later.
+  scoped_ptr<webrtc::ScreenCapturer> screen_capturer_;
+  scoped_ptr<webrtc::WindowCapturer> window_capturer_;
+
+  // Time interval between mode updates.
+  base::TimeDelta update_period_;
+
+  // Size of thumbnails generated by the model.
+  gfx::Size thumbnail_size_;
+
+  // ID of the hosting dialog.
+  content::DesktopMediaID::Id view_dialog_id_;
+
+  // The observer passed to StartUpdating().
+  DesktopMediaListObserver* observer_;
+
+  // Task runner used for the |worker_|.
+  scoped_refptr<base::SequencedTaskRunner> capture_task_runner_;
+
+  // An object that does all the work of getting list of sources on a background
+  // thread (see |capture_task_runner_|). Destroyed on |capture_task_runner_|
+  // after the model is destroyed.
+  scoped_ptr<Worker> worker_;
+
+  // Current list of sources.
+  std::vector<Source> sources_;
+
+  base::WeakPtrFactory<NativeDesktopMediaList> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeDesktopMediaList);
+};
+
+#endif  // CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_