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/geometry/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   ~ImmersiveModeControllerAsh() override;
  29
  30   // ImmersiveModeController overrides:
  31   void Init(BrowserView* browser_view) override;
  32   void SetEnabled(bool enabled) override;
  33   bool IsEnabled() const override;
  34   bool ShouldHideTabIndicators() const override;
  35   bool ShouldHideTopViews() const override;
  36   bool IsRevealed() const override;
  37   int GetTopContainerVerticalOffset(
  38       const gfx::Size& top_container_size) const override;
  39   ImmersiveRevealedLock* GetRevealedLock(AnimateReveal animate_reveal) override
  40       WARN_UNUSED_RESULT;
  41   void OnFindBarVisibleBoundsChanged(
  42       const gfx::Rect& new_visible_bounds_in_screen) override;
  43   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   // Updates whether the tab strip is painted in a short "light bar" style.
  54   // Returns true if the visibility of the tab indicators has changed.
  55   bool UpdateTabIndicators();
  56
  57   // ImmersiveFullscreenController::Delegate overrides:
  58   void OnImmersiveRevealStarted() override;
  59   void OnImmersiveRevealEnded() override;
  60   void OnImmersiveFullscreenExited() override;
  61   void SetVisibleFraction(double visible_fraction) override;
  62   std::vector<gfx::Rect> GetVisibleBoundsInScreen() const override;
  63
  64   // ash::wm::WindowStateObserver override:
  65   void OnPostWindowStateTypeChange(ash::wm::WindowState* window_state,
  66                                    ash::wm::WindowStateType old_type) override;
  67
  68   // content::NotificationObserver override:
  69   void Observe(int type,
  70                const content::NotificationSource& source,
  71                const content::NotificationDetails& details) override;
  72
  73   scoped_ptr<ash::ImmersiveFullscreenController> controller_;
  74
  75   // Not owned.
  76   BrowserView* browser_view_;
  77   aura::Window* native_window_;
  78
  79   // True if the observers for window restore and entering / exiting tab
  80   // fullscreen are enabled.
  81   bool observers_enabled_;
  82
  83   // Whether a short "light bar" version of the tab strip should be painted when
  84   // the top-of-window views are closed. If |use_tab_indicators_| is false, the
  85   // tab strip is not painted at all when the top-of-window views are closed.
  86   bool use_tab_indicators_;
  87
  88   // The current visible bounds of the find bar, in screen coordinates. This is
  89   // an empty rect if the find bar is not visible.
  90   gfx::Rect find_bar_visible_bounds_in_screen_;
  91
  92   // The fraction of the TopContainerView's height which is visible. Zero when
  93   // the top-of-window views are not revealed regardless of
  94   // |use_tab_indicators_|.
  95   double visible_fraction_;
  96
  97   content::NotificationRegistrar registrar_;
  98
  99   DISALLOW_COPY_AND_ASSIGN(ImmersiveModeControllerAsh);
 100 };
 101
 102 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_ASH_H_