| // Copyright 2013 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 ASH_SHELF_SHELF_TOOLTIP_MANAGER_H_ |
| #define ASH_SHELF_SHELF_TOOLTIP_MANAGER_H_ |
| |
| #include "ash/ash_export.h" |
| #include "ash/shelf/shelf_observer.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/timer/timer.h" |
| #include "ui/events/event_handler.h" |
| |
| namespace ui { |
| class LocatedEvent; |
| } |
| |
| namespace views { |
| class View; |
| } |
| |
| namespace ash { |
| class ShelfBubble; |
| class ShelfView; |
| |
| // ShelfTooltipManager manages the tooltip bubble that appears for shelf items. |
| class ASH_EXPORT ShelfTooltipManager : public ui::EventHandler, |
| public ShelfObserver { |
| public: |
| explicit ShelfTooltipManager(ShelfView* shelf_view); |
| ~ShelfTooltipManager() override; |
| |
| // Closes the tooltip; uses an animation if |animate| is true. |
| void Close(bool animate = true); |
| |
| // Returns true if the tooltip is currently visible. |
| bool IsVisible() const; |
| |
| // Returns the view to which the tooltip bubble is anchored. May be null. |
| views::View* GetCurrentAnchorView() const; |
| |
| // Show the tooltip bubble for the specified view. |
| void ShowTooltip(views::View* view); |
| void ShowTooltipWithDelay(views::View* view); |
| |
| // Set the timer delay in ms for testing. |
| void set_timer_delay_for_test(int timer_delay) { timer_delay_ = timer_delay; } |
| |
| protected: |
| // ui::EventHandler overrides: |
| void OnMouseEvent(ui::MouseEvent* event) override; |
| void OnTouchEvent(ui::TouchEvent* event) override; |
| void OnKeyEvent(ui::KeyEvent* event) override; |
| |
| // ShelfObserver overrides: |
| void WillChangeVisibilityState(ShelfVisibilityState new_state) override; |
| void OnAutoHideStateChanged(ShelfAutoHideState new_state) override; |
| |
| private: |
| friend class ShelfViewTest; |
| friend class ShelfTooltipManagerTest; |
| |
| // A helper function to check for shelf visibility and view validity. |
| bool ShouldShowTooltipForView(views::View* view); |
| |
| // A helper function to close the tooltip on mouse and touch press events. |
| void ProcessPressedEvent(const ui::LocatedEvent& event); |
| |
| int timer_delay_; |
| base::OneShotTimer timer_; |
| ShelfView* shelf_view_; |
| ShelfBubble* bubble_ = nullptr; |
| |
| base::WeakPtrFactory<ShelfTooltipManager> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ShelfTooltipManager); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SHELF_SHELF_TOOLTIP_MANAGER_H_ |