// 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_PANELS_PANEL_BROWSER_WINDOW_COCOA_H_
#define CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_WINDOW_COCOA_H_

#import <Foundation/Foundation.h>
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/ui/panels/native_panel_cocoa.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/gfx/rect.h"

class Browser;
class Panel;
@class PanelWindowControllerCocoa;

// An implementation of BrowserWindow for native Panel in Cocoa.
// Bridges between C++ and the Cocoa NSWindow. Cross-platform code will
// interact with this object when it needs to manipulate the window.

class PanelBrowserWindowCocoa : public NativePanelCocoa,
                                public TabStripModelObserver,
                                public content::NotificationObserver {
 public:
  PanelBrowserWindowCocoa(Browser* browser, Panel* panel,
                          const gfx::Rect& bounds);
  virtual ~PanelBrowserWindowCocoa();

  // Overridden from NativePanel
  virtual void ShowPanel() OVERRIDE;
  virtual void ShowPanelInactive() OVERRIDE;
  virtual gfx::Rect GetPanelBounds() const OVERRIDE;
  virtual void SetPanelBounds(const gfx::Rect& bounds) OVERRIDE;
  virtual void SetPanelBoundsInstantly(const gfx::Rect& bounds) OVERRIDE;
  virtual void ClosePanel() OVERRIDE;
  virtual void ActivatePanel() OVERRIDE;
  virtual void DeactivatePanel() OVERRIDE;
  virtual bool IsPanelActive() const OVERRIDE;
  virtual void PreventActivationByOS(bool prevent_activation) OVERRIDE;
  virtual gfx::NativeWindow GetNativePanelHandle() OVERRIDE;
  virtual void UpdatePanelTitleBar() OVERRIDE;
  virtual void UpdatePanelLoadingAnimations(bool should_animate) OVERRIDE;
  virtual void ShowTaskManagerForPanel() OVERRIDE;
  virtual FindBar* CreatePanelFindBar() OVERRIDE;
  virtual void NotifyPanelOnUserChangedTheme() OVERRIDE;
  virtual void PanelWebContentsFocused(content::WebContents* contents) OVERRIDE;
  virtual void PanelCut() OVERRIDE;
  virtual void PanelCopy() OVERRIDE;
  virtual void PanelPaste() OVERRIDE;
  virtual void DrawAttention(bool draw_attention) OVERRIDE;
  virtual bool IsDrawingAttention() const OVERRIDE;
  virtual bool PreHandlePanelKeyboardEvent(
      const content::NativeWebKeyboardEvent& event,
      bool* is_keyboard_shortcut) OVERRIDE;
  virtual void HandlePanelKeyboardEvent(
      const content::NativeWebKeyboardEvent& event) OVERRIDE;
  virtual void FullScreenModeChanged(bool is_full_screen) OVERRIDE;
  virtual Browser* GetPanelBrowser() const OVERRIDE;
  virtual void DestroyPanelBrowser() OVERRIDE;
  virtual void EnsurePanelFullyVisible() OVERRIDE;
  virtual void SetPanelAlwaysOnTop(bool on_top) OVERRIDE;
  virtual void EnableResizeByMouse(bool enable) OVERRIDE;
  virtual void UpdatePanelMinimizeRestoreButtonVisibility() OVERRIDE;
  virtual void PanelExpansionStateChanging(
      Panel::ExpansionState old_state,
      Panel::ExpansionState new_state) OVERRIDE;
  virtual NativePanelTesting* CreateNativePanelTesting() OVERRIDE;

  // These sizes are in screen coordinates.
  virtual gfx::Size WindowSizeFromContentSize(
      const gfx::Size& content_size) const OVERRIDE;
  virtual gfx::Size ContentSizeFromWindowSize(
      const gfx::Size& window_size) const OVERRIDE;
  virtual int TitleOnlyHeight() const OVERRIDE;

  // Overridden from TabStripModelObserver.
  virtual void TabInsertedAt(TabContents* contents,
                             int index,
                             bool foreground) OVERRIDE;
  virtual void TabDetachedAt(TabContents* contents, int index) OVERRIDE;

  // Overridden from NotificationObserver.
  virtual void Observe(int type,
                       const content::NotificationSource& source,
                       const content::NotificationDetails& details) OVERRIDE;

  // Overridden from NativePanelCocoa.
  virtual Panel* panel() const OVERRIDE;
  virtual void DidCloseNativeWindow() OVERRIDE;

 private:
  friend class PanelBrowserWindowCocoaTest;
  friend class NativePanelTestingCocoa;
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, CreateClose);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, NativeBounds);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, TitlebarViewCreate);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, TitlebarViewSizing);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, TitlebarViewClose);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, MenuItems);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, KeyEvent);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, ThemeProvider);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, SetTitle);
  FRIEND_TEST_ALL_PREFIXES(PanelBrowserWindowCocoaTest, ActivatePanel);

  bool isClosed();

  void setBoundsInternal(const gfx::Rect& bounds, bool animate);

  scoped_ptr<Browser> browser_;
  scoped_ptr<Panel> panel_;

  // These use platform-independent screen coordinates, with (0,0) at
  // top-left of the primary screen. They have to be converted to Cocoa
  // screen coordinates before calling Cocoa API.
  gfx::Rect bounds_;

  PanelWindowControllerCocoa* controller_;  // Weak, owns us.
  bool is_shown_;  // Panel is hidden on creation, Show() changes that forever.
  bool has_find_bar_; // Find bar should only be created once per panel.
  NSInteger attention_request_id_;  // identifier from requestUserAttention.

  content::NotificationRegistrar registrar_;

  DISALLOW_COPY_AND_ASSIGN(PanelBrowserWindowCocoa);
};

#endif  // CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_WINDOW_COCOA_H_