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.
5 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_ASH_H_
6 #define CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_ASH_H_
8 #include "chrome/browser/ui/views/frame/immersive_mode_controller.h"
10 #include "base/timer/timer.h"
11 #include "content/public/browser/notification_observer.h"
12 #include "content/public/browser/notification_registrar.h"
13 #include "ui/aura/window_observer.h"
14 #include "ui/events/event_handler.h"
15 #include "ui/gfx/animation/animation_delegate.h"
16 #include "ui/gfx/rect.h"
17 #include "ui/views/focus/focus_manager.h"
18 #include "ui/views/widget/widget_observer.h"
21 class BookmarkBarView;
41 class ImmersiveModeControllerAsh : public ImmersiveModeController,
42 public content::NotificationObserver,
43 public gfx::AnimationDelegate,
44 public ui::EventHandler,
45 public views::FocusChangeListener,
46 public views::WidgetObserver,
47 public aura::WindowObserver {
49 ImmersiveModeControllerAsh();
50 virtual ~ImmersiveModeControllerAsh();
52 // These methods are used to increment and decrement |revealed_lock_count_|.
53 // If immersive mode is enabled, a transition from 1 to 0 in
54 // |revealed_lock_count_| closes the top-of-window views and a transition
55 // from 0 to 1 in |revealed_lock_count_| reveals the top-of-window views.
56 void LockRevealedState(AnimateReveal animate_reveal);
57 void UnlockRevealedState();
59 // ImmersiveModeController overrides:
60 virtual void Init(Delegate* delegate,
61 views::Widget* widget,
62 views::View* top_container) OVERRIDE;
63 virtual void SetEnabled(bool enabled) OVERRIDE;
64 virtual bool IsEnabled() const OVERRIDE;
65 virtual bool ShouldHideTabIndicators() const OVERRIDE;
66 virtual bool ShouldHideTopViews() const OVERRIDE;
67 virtual bool IsRevealed() const OVERRIDE;
68 virtual int GetTopContainerVerticalOffset(
69 const gfx::Size& top_container_size) const OVERRIDE;
70 virtual ImmersiveRevealedLock* GetRevealedLock(
71 AnimateReveal animate_reveal) OVERRIDE WARN_UNUSED_RESULT;
72 virtual void OnFindBarVisibleBoundsChanged(
73 const gfx::Rect& new_visible_bounds_in_screen) OVERRIDE;
74 virtual void SetupForTest() OVERRIDE;
76 // content::NotificationObserver override:
77 virtual void Observe(int type,
78 const content::NotificationSource& source,
79 const content::NotificationDetails& details) OVERRIDE;
81 // ui::EventHandler overrides:
82 virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
83 virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
84 virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
86 // views::FocusChangeObserver overrides:
87 virtual void OnWillChangeFocus(views::View* focused_before,
88 views::View* focused_now) OVERRIDE;
89 virtual void OnDidChangeFocus(views::View* focused_before,
90 views::View* focused_now) OVERRIDE;
92 // views::WidgetObserver overrides:
93 virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
94 virtual void OnWidgetActivationChanged(views::Widget* widget,
95 bool active) OVERRIDE;
97 // gfx::AnimationDelegate overrides:
98 virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE;
99 virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
101 // aura::WindowObserver overrides:
102 virtual void OnWindowPropertyChanged(aura::Window* window,
104 intptr_t old) OVERRIDE;
105 virtual void OnAddTransientChild(aura::Window* window,
106 aura::Window* transient) OVERRIDE;
107 virtual void OnRemoveTransientChild(aura::Window* window,
108 aura::Window* transient) OVERRIDE;
111 friend class ImmersiveModeControllerAshTest;
113 enum AllowRevealWhileClosing {
114 ALLOW_REVEAL_WHILE_CLOSING_YES,
115 ALLOW_REVEAL_WHILE_CLOSING_NO
127 CLOSED, // Top container only showing tabstrip, y = 0.
128 SLIDING_OPEN, // All views showing, y animating from -height to 0.
129 REVEALED, // All views showing, y = 0.
130 SLIDING_CLOSED, // All views showing, y animating from 0 to -height.
132 enum TabIndicatorVisibility {
133 TAB_INDICATORS_FORCE_HIDE,
143 // Enables or disables observers for mouse move, focus, and window restore.
144 void EnableWindowObservers(bool enable);
146 // Updates |top_edge_hover_timer_| based on a mouse |event|. If the mouse is
147 // hovered at the top of the screen the timer is started. If the mouse moves
148 // away from the top edge, or moves too much in the x direction, the timer is
150 void UpdateTopEdgeHoverTimer(ui::MouseEvent* event);
152 // Updates |located_event_revealed_lock_| based on the current mouse state and
153 // the current touch state.
154 // |event| is NULL if the source event is not known.
155 // |allow_reveal_while_closing| indicates whether the mouse and touch
156 // are allowed to initiate a reveal while the top-of-window views are sliding
158 void UpdateLocatedEventRevealedLock(
159 ui::LocatedEvent* event,
160 AllowRevealWhileClosing allow_reveal_while_closing);
162 // Acquires |located_event_revealed_lock_| if it is not already held.
163 void AcquireLocatedEventRevealedLock();
165 // Updates |focus_revealed_lock_| based on the currently active view and the
166 // currently active widget.
167 void UpdateFocusRevealedLock();
169 // Update |located_event_revealed_lock_| and |focus_revealed_lock_| as a
170 // result of a gesture of |swipe_type|. Returns true if any locks were
171 // acquired or released.
172 bool UpdateRevealedLocksForSwipe(SwipeType swipe_type);
174 // Updates whether fullscreen uses any chrome at all. When using minimal
175 // chrome, a 'light bar' is permanently visible for the launcher and possibly
177 void UpdateUseMinimalChrome(Layout layout);
179 // Returns the animation duration given |animate|.
180 int GetAnimationDuration(Animate animate) const;
182 // Temporarily reveals the top-of-window views while in immersive mode,
183 // hiding them when the cursor exits the area of the top views. If |animate|
184 // is not ANIMATE_NO, slides in the view, otherwise shows it immediately.
185 void MaybeStartReveal(Animate animate);
187 // Updates the browser root view's layout including window caption controls.
188 void LayoutBrowserRootView();
190 // Called when the animation to slide open the top-of-window views has
192 void OnSlideOpenAnimationCompleted(Layout layout);
194 // Hides the top-of-window views if immersive mode is enabled and nothing is
195 // keeping them revealed. Optionally animates.
196 void MaybeEndReveal(Animate animate);
198 // Called when the animation to slide out the top-of-window views has
200 void OnSlideClosedAnimationCompleted();
202 // Returns the type of swipe given |event|.
203 SwipeType GetSwipeType(ui::GestureEvent* event) const;
205 // Returns true if a mouse event at |location_in_screen| should be ignored.
206 // Ignored mouse events should not contribute to revealing or unrevealing the
207 // top-of-window views.
208 bool ShouldIgnoreMouseEventAtLocation(
209 const gfx::Point& location_in_screen) const;
211 // True when |location| is "near" to the top container. When the top container
212 // is not closed "near" means within the displayed bounds or above it. When
213 // the top container is closed "near" means either within the displayed
214 // bounds, above it, or within a few pixels below it. This allow the container
215 // to steal enough pixels to detect a swipe in and handles the case that there
216 // is a bezel sensor above the top container.
217 bool ShouldHandleGestureEvent(const gfx::Point& location) const;
219 // Recreate |bubble_manager_| and start observing any bubbles anchored to a
220 // child of |top_container_|.
221 void RecreateBubbleManager();
223 // Shrinks or expands the touch hit test by updating insets for the render
224 // window depending on if top_inset is positive or negative respectively.
225 // Used to ensure that touch events at the top of the screen go to the top
226 // container so a slide gesture can be generated when the content window is
227 // consuming all touch events sent to it.
228 void SetRenderWindowTopInsetsForTouch(int top_inset);
230 // Injected dependencies. Not owned.
232 views::Widget* widget_;
233 views::View* top_container_;
235 // True if the window observers are enabled.
236 bool observers_enabled_;
238 // True when in immersive mode.
241 // State machine for the revealed/closed animations.
242 RevealState reveal_state_;
244 int revealed_lock_count_;
246 // The visibility of the miniature "tab indicators" in the main browser view
247 // when immersive mode is enabled and the top-of-window views are closed.
248 TabIndicatorVisibility tab_indicator_visibility_;
250 // Timer to track cursor being held at the top edge of the screen.
251 base::OneShotTimer<ImmersiveModeController> top_edge_hover_timer_;
253 // The cursor x position in screen coordinates when the cursor first hit the
254 // top edge of the screen.
255 int mouse_x_when_hit_top_in_screen_;
257 // Tracks if the controller has seen a ET_GESTURE_SCROLL_BEGIN, without the
261 // The current visible bounds of the find bar, in screen coordinates. This is
262 // an empty rect if the find bar is not visible.
263 gfx::Rect find_bar_visible_bounds_in_screen_;
265 // Lock which keeps the top-of-window views revealed based on the current
266 // mouse state and the current touch state. Acquiring the lock is used to
267 // trigger a reveal when the user moves the mouse to the top of the screen
268 // and when the user does a SWIPE_OPEN edge gesture.
269 scoped_ptr<ImmersiveRevealedLock> located_event_revealed_lock_;
271 // Lock which keeps the top-of-window views revealed based on the focused view
272 // and the active widget. Acquiring the lock never triggers a reveal because
273 // a view is not focusable till a reveal has made it visible.
274 scoped_ptr<ImmersiveRevealedLock> focus_revealed_lock_;
276 // Native window for the browser.
277 aura::Window* native_window_;
279 // The animation which controls sliding the top-of-window views in and out.
280 scoped_ptr<gfx::SlideAnimation> animation_;
282 // Whether the animations are disabled for testing.
283 bool animations_disabled_for_test_;
285 // Manages bubbles which are anchored to a child of |top_container_|.
287 scoped_ptr<BubbleManager> bubble_manager_;
289 content::NotificationRegistrar registrar_;
291 base::WeakPtrFactory<ImmersiveModeControllerAsh> weak_ptr_factory_;
293 DISALLOW_COPY_AND_ASSIGN(ImmersiveModeControllerAsh);
296 #endif // CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_ASH_H_