immersive_mode_controller_ash.h revision f2477e01787aa58f445919b809d89e252beef54f 
1// Copyright 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_ASH_H_
6#define CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_ASH_H_
7
8#include "chrome/browser/ui/views/frame/immersive_mode_controller.h"
9
10#include "ash/wm/immersive_fullscreen_controller.h"
11#include "ash/wm/window_state_observer.h"
12#include "base/memory/scoped_ptr.h"
13#include "content/public/browser/notification_observer.h"
14#include "content/public/browser/notification_registrar.h"
15#include "ui/gfx/rect.h"
16
17namespace aura {
18class Window;
19}
20
21class ImmersiveModeControllerAsh
22    : public ImmersiveModeController,
23      public ash::ImmersiveFullscreenController::Delegate,
24      public ash::wm::WindowStateObserver,
25      public content::NotificationObserver {
26 public:
27  ImmersiveModeControllerAsh();
28  virtual ~ImmersiveModeControllerAsh();
29
30  // ImmersiveModeController overrides:
31  virtual void Init(BrowserView* browser_view) OVERRIDE;
32  virtual void SetEnabled(bool enabled) OVERRIDE;
33  virtual bool IsEnabled() const OVERRIDE;
34  virtual bool ShouldHideTabIndicators() const OVERRIDE;
35  virtual bool ShouldHideTopViews() const OVERRIDE;
36  virtual bool IsRevealed() const OVERRIDE;
37  virtual int GetTopContainerVerticalOffset(
38      const gfx::Size& top_container_size) const OVERRIDE;
39  virtual ImmersiveRevealedLock* GetRevealedLock(
40      AnimateReveal animate_reveal) OVERRIDE WARN_UNUSED_RESULT;
41  virtual void OnFindBarVisibleBoundsChanged(
42      const gfx::Rect& new_visible_bounds_in_screen) OVERRIDE;
43  virtual void SetupForTest() OVERRIDE;
44
45 private:
46  // Enables or disables observers for window restore and entering / exiting
47  // tab fullscreen.
48  void EnableWindowObservers(bool enable);
49
50  // Updates the browser root view's layout including window caption controls.
51  void LayoutBrowserRootView();
52
53  // Shrinks or expands the touch hit test by updating insets for the render
54  // window depending on if top_inset is positive or negative respectively.
55  // Used to ensure that touch events at the top of the screen go to the top
56  // container so a slide gesture can be generated when the content window is
57  // consuming all touch events sent to it.
58  void SetRenderWindowTopInsetsForTouch(int top_inset);
59
60  // Sets whether the tab strip is painted in a short "light bar" style.
61  void SetTabIndicatorsVisible(bool visible);
62
63  // ImmersiveFullscreenController::Delegate overrides:
64  virtual void OnImmersiveRevealStarted() OVERRIDE;
65  virtual void OnImmersiveRevealEnded() OVERRIDE;
66  virtual void OnImmersiveFullscreenExited() OVERRIDE;
67  virtual void SetVisibleFraction(double visible_fraction) OVERRIDE;
68  virtual std::vector<gfx::Rect> GetVisibleBoundsInScreen() const OVERRIDE;
69
70  // ash::wm::WindowStateObserver override:
71  virtual void OnWindowShowTypeChanged(
72      ash::wm::WindowState* window_state,
73      ash::wm::WindowShowType old_type) OVERRIDE;
74
75  // content::NotificationObserver override:
76  virtual void Observe(int type,
77                       const content::NotificationSource& source,
78                       const content::NotificationDetails& details) OVERRIDE;
79
80  scoped_ptr<ash::ImmersiveFullscreenController> controller_;
81
82  // Not owned.
83  BrowserView* browser_view_;
84  aura::Window* native_window_;
85
86  // True if the observers for window restore and entering / exiting tab
87  // fullscreen are enabled.
88  bool observers_enabled_;
89
90  // Whether a short "light bar" version of the tab strip should be painted when
91  // the top-of-window views are closed. If |use_tab_indicators_| is false, the
92  // tab strip is not painted at all when the top-of-window views are closed.
93  bool use_tab_indicators_;
94
95  // The current visible bounds of the find bar, in screen coordinates. This is
96  // an empty rect if the find bar is not visible.
97  gfx::Rect find_bar_visible_bounds_in_screen_;
98
99  // The fraction of the TopContainerView's height which is visible. Zero when
100  // the top-of-window views are not revealed regardless of
101  // |use_tab_indicators_|.
102  double visible_fraction_;
103
104  content::NotificationRegistrar registrar_;
105
106  DISALLOW_COPY_AND_ASSIGN(ImmersiveModeControllerAsh);
107};
108
109#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_ASH_H_
110