Move immersive_mode_controller into c/b/ui/views/frame

chrome/browser/ui/views/immersive_mode_controller.h

-// Copyright 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_VIEWS_IMMERSIVE_MODE_CONTROLLER_H_
-#define CHROME_BROWSER_UI_VIEWS_IMMERSIVE_MODE_CONTROLLER_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/timer.h"
-#include "ui/base/events/event_handler.h"
-#include "ui/gfx/native_widget_types.h"
-
-class BrowserView;
-class RevealView;
-
-namespace views {
-class MouseWatcher;
-class View;
-}
-
-// Controller for an "immersive mode" similar to MacOS presentation mode where
-// the top-of-window views are hidden until the mouse hits the top of the
-// screen. The tab strip is optionally painted with miniature "tab indicator"
-// rectangles.
-class ImmersiveModeController : public ui::EventHandler {
- public:
-  ImmersiveModeController();
-  virtual ~ImmersiveModeController();
-
-  // Must initialize after browser view has a Widget and native window.
-  void Init(BrowserView* browser_view);
-
-  // Returns true if immersive mode should be used for fullscreen based on
-  // command line flags.
-  static bool UseImmersiveFullscreen();
-
-  // Enables or disables immersive mode.
-  void SetEnabled(bool enabled);
-  bool enabled() const { return enabled_; }
-
-  // See member comment below.
-  bool hide_tab_indicators() const { return hide_tab_indicators_; }
-
-  // True when the top views are hidden due to immersive mode.
-  bool ShouldHideTopViews() const {
-    return enabled_ && reveal_state_ == CLOSED;
-  }
-
-  // True when the top views are fully or partially visible.
-  bool IsRevealed() const { return enabled_ && reveal_state_ != CLOSED; }
-
-  // If the controller is temporarily revealing the top views ensures that
-  // the reveal view's layer is on top and hence visible over web contents.
-  void MaybeStackViewAtTop();
-
-  // Shows the reveal view if immersive mode is enabled. Used when focus is
-  // placed in the location bar, tools menu, etc.
-  void MaybeStartReveal();
-
-  // Immediately hides the reveal view, without animating.
-  void CancelReveal();
-
-  // If |reveal| performs a reveal and holds the view open until called again
-  // with |reveal| false. Immersive mode must be enabled.
-  void RevealAndLock(bool reveal);
-
-  // Called when the reveal view's children lose focus, may end the reveal.
-  void OnRevealViewLostFocus();
-
-  // ui::EventHandler overrides:
-  virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
-
-  // Testing interface.
-  void SetHideTabIndicatorsForTest(bool hide);
-  void StartRevealForTest();
-  void OnRevealViewLostMouseForTest();
-
- private:
-  enum Animate {
-    ANIMATE_NO,
-    ANIMATE_SLOW,
-    ANIMATE_FAST,
-  };
-  enum RevealState {
-    CLOSED,          // Top container only showing tabstrip, y = 0.
-    SLIDING_OPEN,    // All views showing, y animating from -height to 0.
-    REVEALED,        // All views showing, y = 0.
-    SLIDING_CLOSED,  // All views showing, y animating from 0 to -height.
-  };
-
-  // Enables or disables observers for mouse move and window restore.
-  void EnableWindowObservers(bool enable);
-
-  // Temporarily reveals the top-of-window views while in immersive mode,
-  // hiding them when the cursor exits the area of the top views. If |animate|
-  // is not ANIMATE_NO, slides in the view, otherwise shows it immediately.
-  void StartReveal(Animate animate);
-
-  // Updates layout for |browser_view_| including window caption controls and
-  // tab strip style |immersive_style|.
-  void LayoutBrowserView(bool immersive_style);
-
-  // Slides open the reveal view at the top of the screen.
-  void AnimateSlideOpen();
-  void OnSlideOpenAnimationCompleted();
-
-  // Called when the mouse exits the reveal view area, may end the reveal.
-  void OnRevealViewLostMouse();
-
-  // Hides the top-of-window views. Optionally animates.
-  void EndReveal(Animate animate);
-
-  // Slide out the reveal view.
-  void AnimateSlideClosed(int duration_ms);
-  void OnSlideClosedAnimationCompleted();
-
-  // Browser view holding the views to be shown and hidden. Not owned.
-  BrowserView* browser_view_;
-
-  // True when in immersive mode.
-  bool enabled_;
-
-  // State machine for the revealed/closed animations.
-  RevealState reveal_state_;
-
-  // If true, reveal will not be canceled when the mouse moves outside the
-  // top view.
-  bool reveal_locked_;
-
-  // True if the miniature "tab indicators" should be hidden in the main browser
-  // view when immersive mode is enabled.
-  bool hide_tab_indicators_;
-
-  // Timer to track cursor being held at the top.
-  base::OneShotTimer<ImmersiveModeController> top_timer_;
-
-  // Mouse is hovering over the revealed view.
-  bool reveal_hovered_;
-
-  // Native window for the browser, needed to clean up observers.
-  gfx::NativeWindow native_window_;
-
-#if defined(USE_AURA)
-  // Observer to disable immersive mode when window leaves the maximized state.
-  class WindowObserver;
-  scoped_ptr<WindowObserver> window_observer_;
-#endif
-
-  // Animation observers. They must be separate because animations can be
-  // aborted and have their observers triggered at any time and the state
-  // machine needs to know which animation completed.
-  class AnimationObserver;
-  scoped_ptr<AnimationObserver> slide_open_observer_;
-  scoped_ptr<AnimationObserver> slide_closed_observer_;
-
-  DISALLOW_COPY_AND_ASSIGN(ImmersiveModeController);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_IMMERSIVE_MODE_CONTROLLER_H_