chrome/browser/ui/views/frame/immersive_mode_controller_ash.h

   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
  17 namespace aura {
  18 class Window;
  19 }
  20
  21 class 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   // Updates whether the tab strip is painted in a short "light bar" style.
  61   // Returns true if the visibility of the tab indicators has changed.
  62   bool UpdateTabIndicators();
  63
  64   // ImmersiveFullscreenController::Delegate overrides:
  65   virtual void OnImmersiveRevealStarted() OVERRIDE;
  66   virtual void OnImmersiveRevealEnded() OVERRIDE;
  67   virtual void OnImmersiveFullscreenExited() OVERRIDE;
  68   virtual void SetVisibleFraction(double visible_fraction) OVERRIDE;
  69   virtual std::vector<gfx::Rect> GetVisibleBoundsInScreen() const OVERRIDE;
  70
  71   // ash::wm::WindowStateObserver override:
  72   virtual void OnWindowShowTypeChanged(
  73       ash::wm::WindowState* window_state,
  74       ash::wm::WindowShowType old_type) OVERRIDE;
  75
  76   // content::NotificationObserver override:
  77   virtual void Observe(int type,
  78                        const content::NotificationSource& source,
  79                        const content::NotificationDetails& details) OVERRIDE;
  80
  81   scoped_ptr<ash::ImmersiveFullscreenController> controller_;
  82
  83   // Not owned.
  84   BrowserView* browser_view_;
  85   aura::Window* native_window_;
  86
  87   // True if the observers for window restore and entering / exiting tab
  88   // fullscreen are enabled.
  89   bool observers_enabled_;
  90
  91   // Whether a short "light bar" version of the tab strip should be painted when
  92   // the top-of-window views are closed. If |use_tab_indicators_| is false, the
  93   // tab strip is not painted at all when the top-of-window views are closed.
  94   bool use_tab_indicators_;
  95
  96   // The current visible bounds of the find bar, in screen coordinates. This is
  97   // an empty rect if the find bar is not visible.
  98   gfx::Rect find_bar_visible_bounds_in_screen_;
  99
 100   // The fraction of the TopContainerView's height which is visible. Zero when
 101   // the top-of-window views are not revealed regardless of
 102   // |use_tab_indicators_|.
 103   double visible_fraction_;
 104
 105   content::NotificationRegistrar registrar_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(ImmersiveModeControllerAsh);
 108 };
 109
 110 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_ASH_H_