Allow a Views client to provide a default frameview for window widgets.

ash/wm/dialog_frame_view.h

+// Copyright (c) 2012 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 ASH_WM_DIALOG_FRAME_VIEW_H_
+#define ASH_WM_DIALOG_FRAME_VIEW_H_
+#pragma once
+
+#include "ui/views/window/non_client_view.h"
+
+namespace gfx {
+class Font;
+}
+
+namespace ash {
+namespace internal {
+
+// A NonClientFrameView that implements a Kennedy-look for dialogs.
+class DialogFrameView : public views::NonClientFrameView {
+ public:
+  // Internal class name.
+  static const char kViewClassName[];
+
+  DialogFrameView();
+  virtual ~DialogFrameView();
+
+  // Overridden from views::NonClientFrameView:
+  virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
+  virtual gfx::Rect GetWindowBoundsForClientBounds(
+      const gfx::Rect& client_bounds) const OVERRIDE;
+  virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
+  virtual void GetWindowMask(const gfx::Size& size,
+                             gfx::Path* window_mask) OVERRIDE;
+  virtual void ResetWindowControls() OVERRIDE;
+  virtual void UpdateWindowIcon() OVERRIDE;
+
+  // Overridden from View:
+  virtual std::string GetClassName() const OVERRIDE;
+  virtual void Layout() OVERRIDE;
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+  virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
+  virtual void OnMouseReleased(const views::MouseEvent& event) OVERRIDE;
+
+ private:
+  int GetNonClientTopHeight() const;
+
+  gfx::Rect title_display_rect_;
+  gfx::Rect close_button_rect_;
+
+  static gfx::Font* title_font_;
+
+  DISALLOW_COPY_AND_ASSIGN(DialogFrameView);
+};
+
+}  // namespace internal
+}  // namespace views
+
+#endif  // ASH_WM_DIALOG_FRAME_VIEW_H_