// Copyright (c) 2014 GitHub, Inc. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.

#ifndef ATOM_BROWSER_NATIVE_WINDOW_VIEWS_H_
#define ATOM_BROWSER_NATIVE_WINDOW_VIEWS_H_

#include "atom/browser/native_window.h"

#include <string>
#include <vector>

#include "atom/browser/ui/accelerator_util.h"
#include "ui/views/widget/widget_delegate.h"
#include "ui/views/widget/widget_observer.h"

namespace views {
class UnhandledKeyboardEventHandler;
}

namespace atom {

class GlobalMenuBarX11;
class MenuBar;

class NativeWindowViews : public NativeWindow,
                          public views::WidgetDelegateView,
                          public views::WidgetObserver {
 public:
  explicit NativeWindowViews(content::WebContents* web_contents,
                            const mate::Dictionary& options);
  virtual ~NativeWindowViews();

  // NativeWindow:
  virtual void Close() OVERRIDE;
  virtual void CloseImmediately() OVERRIDE;
  virtual void Move(const gfx::Rect& pos) OVERRIDE;
  virtual void Focus(bool focus) OVERRIDE;
  virtual bool IsFocused() OVERRIDE;
  virtual void Show() OVERRIDE;
  virtual void ShowInactive() OVERRIDE;
  virtual void Hide() OVERRIDE;
  virtual bool IsVisible() OVERRIDE;
  virtual void Maximize() OVERRIDE;
  virtual void Unmaximize() OVERRIDE;
  virtual bool IsMaximized() OVERRIDE;
  virtual void Minimize() OVERRIDE;
  virtual void Restore() OVERRIDE;
  virtual bool IsMinimized() OVERRIDE;
  virtual void SetFullscreen(bool fullscreen) OVERRIDE;
  virtual bool IsFullscreen() OVERRIDE;
  virtual void SetSize(const gfx::Size& size) OVERRIDE;
  virtual gfx::Size GetSize() OVERRIDE;
  virtual void SetContentSize(const gfx::Size& size) OVERRIDE;
  virtual gfx::Size GetContentSize() OVERRIDE;
  virtual void SetMinimumSize(const gfx::Size& size) OVERRIDE;
  virtual gfx::Size GetMinimumSize() OVERRIDE;
  virtual void SetMaximumSize(const gfx::Size& size) OVERRIDE;
  virtual gfx::Size GetMaximumSize() OVERRIDE;
  virtual void SetResizable(bool resizable) OVERRIDE;
  virtual bool IsResizable() OVERRIDE;
  virtual void SetAlwaysOnTop(bool top) OVERRIDE;
  virtual bool IsAlwaysOnTop() OVERRIDE;
  virtual void Center() OVERRIDE;
  virtual void SetPosition(const gfx::Point& position) OVERRIDE;
  virtual gfx::Point GetPosition() OVERRIDE;
  virtual void SetTitle(const std::string& title) OVERRIDE;
  virtual std::string GetTitle() OVERRIDE;
  virtual void FlashFrame(bool flash) OVERRIDE;
  virtual void SetSkipTaskbar(bool skip) OVERRIDE;
  virtual void SetKiosk(bool kiosk) OVERRIDE;
  virtual bool IsKiosk() OVERRIDE;
  virtual void SetMenu(ui::MenuModel* menu_model) OVERRIDE;
  virtual gfx::NativeWindow GetNativeWindow() OVERRIDE;
  virtual void SetProgressBar(double value) OVERRIDE;

  gfx::AcceleratedWidget GetAcceleratedWidget();

  SkRegion* draggable_region() const { return draggable_region_.get(); }
  views::Widget* widget() const { return window_.get(); }

 private:
  // NativeWindow:
  virtual void UpdateDraggableRegions(
      const std::vector<DraggableRegion>& regions) OVERRIDE;

  // views::WidgetObserver:
  virtual void OnWidgetActivationChanged(
      views::Widget* widget, bool active) OVERRIDE;

  // views::WidgetDelegate:
  virtual void DeleteDelegate() OVERRIDE;
  virtual views::View* GetInitiallyFocusedView() OVERRIDE;
  virtual bool CanResize() const OVERRIDE;
  virtual bool CanMaximize() const OVERRIDE;
  virtual base::string16 GetWindowTitle() const OVERRIDE;
  virtual bool ShouldHandleSystemCommands() const OVERRIDE;
  virtual gfx::ImageSkia GetWindowAppIcon() OVERRIDE;
  virtual gfx::ImageSkia GetWindowIcon() OVERRIDE;
  virtual views::Widget* GetWidget() OVERRIDE;
  virtual const views::Widget* GetWidget() const OVERRIDE;
  virtual views::View* GetContentsView() OVERRIDE;
  virtual bool ShouldDescendIntoChildForEventHandling(
     gfx::NativeView child,
     const gfx::Point& location) OVERRIDE;
  virtual views::ClientView* CreateClientView(views::Widget* widget) OVERRIDE;
  virtual views::NonClientFrameView* CreateNonClientFrameView(
      views::Widget* widget) OVERRIDE;

  // brightray::InspectableWebContentsDelegate:
  virtual gfx::ImageSkia GetDevToolsWindowIcon() OVERRIDE;

  // content::WebContentsDelegate:
  virtual void HandleMouseDown() OVERRIDE;
  virtual void HandleKeyboardEvent(
      content::WebContents*,
      const content::NativeWebKeyboardEvent& event) OVERRIDE;

  // views::View:
  virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;

  // Register accelerators supported by the menu model.
  void RegisterAccelerators(ui::MenuModel* menu_model);

  // Converts between client area and window area, since we include the menu bar
  // in client area we need to substract/add menu bar's height in convertions.
  gfx::Rect ContentBoundsToWindowBounds(const gfx::Rect& content_bounds);

  // Show/Hide the menu bar.
  void SetMenuBarVisibility(bool visible);

  scoped_ptr<views::Widget> window_;
  views::View* web_view_;  // Managed by inspectable_web_contents_.

  scoped_ptr<MenuBar> menu_bar_;
  bool menu_bar_autohide_;
  bool menu_bar_visible_;
  bool menu_bar_alt_pressed_;

#if defined(USE_X11)
  scoped_ptr<GlobalMenuBarX11> global_menu_bar_;
#endif

  // Handles unhandled keyboard messages coming back from the renderer process.
  scoped_ptr<views::UnhandledKeyboardEventHandler> keyboard_event_handler_;

  // Map from accelerator to menu item's command id.
  accelerator_util::AcceleratorTable accelerator_table_;

  bool use_content_size_;
  bool resizable_;
  std::string title_;
  gfx::Size minimum_size_;
  gfx::Size maximum_size_;

  scoped_ptr<SkRegion> draggable_region_;

  DISALLOW_COPY_AND_ASSIGN(NativeWindowViews);
};

}  // namespace atom

#endif  // ATOM_BROWSER_NATIVE_WINDOW_VIEWS_H_