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// Copyright 2013 The Chromium Authors
// 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/raw_ptr.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 OnShelfVisibilityStateChanged(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_;
raw_ptr<Shelf, ExperimentalAsh> shelf_ = nullptr;
raw_ptr<ShelfBubble, DanglingUntriaged | ExperimentalAsh> bubble_ = nullptr;
raw_ptr<ShelfTooltipDelegate, ExperimentalAsh> shelf_tooltip_delegate_ =
nullptr;
base::WeakPtrFactory<ShelfTooltipManager> weak_factory_{this};
};
} // namespace ash
#endif // ASH_SHELF_SHELF_TOOLTIP_MANAGER_H_
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