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- // 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/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 Shelf;
- class ShelfTooltipDelegate;
- // ShelfTooltipManager manages the tooltip bubble that appears for shelf items.
- class ASH_EXPORT ShelfTooltipManager : public ui::EventHandler,
- public ShelfObserver {
- public:
- explicit ShelfTooltipManager(Shelf* shelf);
- ShelfTooltipManager(const ShelfTooltipManager&) = delete;
- ShelfTooltipManager& operator=(const ShelfTooltipManager&) = delete;
- ~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; }
- void set_shelf_tooltip_delegate(
- ShelfTooltipDelegate* shelf_tooltip_delegate) {
- DCHECK(!shelf_tooltip_delegate_ || !shelf_tooltip_delegate);
- shelf_tooltip_delegate_ = shelf_tooltip_delegate;
- }
- protected:
- // ui::EventHandler overrides:
- void OnMouseEvent(ui::MouseEvent* event) override;
- void OnTouchEvent(ui::TouchEvent* event) override;
- void OnScrollEvent(ui::ScrollEvent* 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_;
- Shelf* shelf_ = nullptr;
- ShelfBubble* bubble_ = nullptr;
- ShelfTooltipDelegate* shelf_tooltip_delegate_ = nullptr;
- base::WeakPtrFactory<ShelfTooltipManager> weak_factory_{this};
- };
- } // namespace ash
- #endif // ASH_SHELF_SHELF_TOOLTIP_MANAGER_H_
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