// 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 CHROME_BROWSER_UI_VIEWS_FRAME_NATIVE_BROWSER_FRAME_H_
#define CHROME_BROWSER_UI_VIEWS_FRAME_NATIVE_BROWSER_FRAME_H_

class BrowserFrame;
class BrowserView;

namespace views {
class NativeWidget;
}

class NativeBrowserFrame {
 public:
  virtual ~NativeBrowserFrame() {}

  // Construct a platform-specific implementation of this interface.
  static NativeBrowserFrame* CreateNativeBrowserFrame(
      BrowserFrame* browser_frame,
      BrowserView* browser_view);

  virtual views::NativeWidget* AsNativeWidget() = 0;
  virtual const views::NativeWidget* AsNativeWidget() const = 0;

  // Returns true if the OS takes care of showing the system menu. Returning
  // false means BrowserFrame handles showing the system menu.
  virtual bool UsesNativeSystemMenu() const = 0;

 protected:
  friend class BrowserFrame;

  // BrowserFrame pass-thrus ---------------------------------------------------
  // See browser_frame.h for documentation:
  virtual int GetMinimizeButtonOffset() const = 0;
  // TODO(beng): replace with some kind of "framechanged" signal to Window.
  virtual void TabStripDisplayModeChanged() = 0;
};

#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_NATIVE_BROWSER_FRAME_H_