Refactors HWNDPhotobooth into NativeViewPhotobooth and...

chrome/browser/views/tabs/native_view_photobooth.h

 // Copyright (c) 2006-2008 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_VIEWS_TABS_HWND_PHOTOBOOTH_H__
-#define CHROME_BROWSER_VIEWS_TABS_HWND_PHOTOBOOTH_H__
+#ifndef CHROME_BROWSER_VIEWS_TABS_NATIVE_VIEW_PHOTOBOOTH_H_
+#define CHROME_BROWSER_VIEWS_TABS_NATIVE_VIEW_PHOTOBOOTH_H_
 
-#include "base/basictypes.h"
-#include "base/gfx/rect.h"
+#include "base/gfx/native_widget_types.h"
 
 namespace gfx {
 class Canvas;
+class Rect;
 }
-namespace views {
-class WidgetWin;
-}
-
 ///////////////////////////////////////////////////////////////////////////////
-// HWNDPhotobooth
+// NativeViewPhotobooth
 //
-//  An object that a HWND "steps into" to have its picture taken. This is used
-//  to generate a full size screen shot of the contents of a HWND including
-//  any child windows.
+//  An object that a NativeView "steps into" to have its picture taken. This is
+//  used to generate a full size screen shot of the contents of a NativeView
+//  including any child windows.
 //
-//  Implementation note: This causes the HWND to be re-parented to a mostly
-//  off-screen layered window.
+//  Implementation note: This causes the NativeView to be re-parented to a
+//  mostly off-screen layered window.
 //
-class HWNDPhotobooth {
+class NativeViewPhotobooth {
  public:
   // Creates the photo booth. Constructs a nearly off-screen window, parents
-  // the HWND, then shows it. The caller is responsible for destroying this
-  // window, since the photo-booth will detach it before it is destroyed.
-  // |canvas| is a canvas to paint the contents into, and dest_bounds is the
-  // target area in |canvas| to which painted contents will be clipped.
-  explicit HWNDPhotobooth(HWND initial_hwnd);
+  // the view, then shows it. The caller is responsible for destroying this
+  // photo-booth, since the photo-booth will detach it before it is destroyed.
+  static NativeViewPhotobooth* Create(gfx::NativeView initial_view);
 
   // Destroys the photo booth window.
-  virtual ~HWNDPhotobooth();
+  virtual ~NativeViewPhotobooth() {}
 
-  // Replaces the HWND in the photo booth with the specified one. The caller is
-  // responsible for destroying this HWND since it will be detached from the
-  // capture window before the capture window is destroyed.
-  void ReplaceHWND(HWND new_hwnd);
+  // Replaces the view in the photo booth with the specified one.
+  virtual void Replace(gfx::NativeView new_view) = 0;
 
   // Paints the current display image of the window into |canvas|, clipped to
   // |target_bounds|.
-  void PaintScreenshotIntoCanvas(gfx::Canvas* canvas,
-                                 const gfx::Rect& target_bounds);
-
- private:
-  // Creates a mostly off-screen window to contain the HWND to be captured.
-  void CreateCaptureWindow(HWND initial_hwnd);
-
-  // The nearly off-screen photo-booth layered window used to hold the HWND.
-  views::WidgetWin* capture_window_;
-
-  // The current HWND being captured.
-  HWND current_hwnd_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(HWNDPhotobooth);
+  virtual void PaintScreenshotIntoCanvas(gfx::Canvas* canvas,
+                                         const gfx::Rect& target_bounds) = 0;
 };
 
-#endif  // #ifndef CHROME_BROWSER_VIEWS_TABS_HWND_PHOTOBOOTH_H__
+#endif  // #ifndef CHROME_BROWSER_VIEWS_TABS_NATIVE_VIEW_PHOTOBOOTH_H_