Refactors HWNDView, NativeViewHostGtk and NativeViewHost so that they match t...

views/controls/native/native_view_host_win.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 VIEWS_CONTROLS_HWND_VIEW_H_
 #define VIEWS_CONTROLS_HWND_VIEW_H_
 
-#include <string>
-
-#include "views/controls/native_view_host.h"
+#include "base/logging.h"
+#include "views/controls/native/native_view_host_wrapper.h"
 
 namespace views {
 
-/////////////////////////////////////////////////////////////////////////////
-//
-// HWNDView class
-//
-//   The HWNDView class hosts a native window handle (HWND) sizing it
-//   according to the bounds of the view. This is useful whenever you need to
-//   show a UI control that has a HWND (e.g. a native windows Edit control)
-//   within thew View hierarchy and benefit from the sizing/layout.
-//
-/////////////////////////////////////////////////////////////////////////////
-// TODO: Rename this to NativeViewHostWin.
-class HWNDView : public NativeViewHost {
+class NativeViewHost;
+
+// A Windows implementation of NativeViewHostWrapper
+class NativeViewHostWin : public NativeViewHostWrapper {
  public:
-  HWNDView();
-  virtual ~HWNDView();
+  explicit NativeViewHostWin(NativeViewHost* host);
+  virtual ~NativeViewHostWin();
 
-  // Attach a window handle to this View, making the window it represents
-  // subject to sizing according to this View's parent container's Layout
-  // Manager's sizing heuristics.
-  //
-  // This object should be added to the view hierarchy before calling this
-  // function, which will expect the parent to be valid.
-  void Attach(HWND hwnd);
-
-  // Detach the attached window handle. It will no longer be updated
-  void Detach();
-
-  // TODO(sky): convert this to native_view().
-  HWND GetHWND() const { return native_view(); }
-
-  virtual void Paint(gfx::Canvas* canvas);
-
-  // Overridden from View.
-  virtual std::string GetClassName() const;
-
- protected:
-  virtual void ViewHierarchyChanged(bool is_add, View *parent, View *child);
-
-  virtual void Focus();
-
-  // NativeHostView overrides.
+  // Overridden from NativeViewHostWrapper:
+  virtual void NativeViewAttached();
+  virtual void NativeViewDetaching();
+  virtual void AddedToWidget();
+  virtual void RemovedFromWidget();
   virtual void InstallClip(int x, int y, int w, int h);
+  virtual bool HasInstalledClip();
   virtual void UninstallClip();
   virtual void ShowWidget(int x, int y, int w, int h);
   virtual void HideWidget();
+  virtual void SetFocus();
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(HWNDView);
+  // Our associated NativeViewHost.
+  NativeViewHost* host_;
+
+  // Have we installed a region on the gfx::NativeView used to clip to only the
+  // visible portion of the gfx::NativeView ?
+  bool installed_clip_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeViewHostWin);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_HWND_VIEW_H_