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1 // Copyright 2013 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. | |
4 | |
5 #ifndef ASH_COMMON_SHELF_SHELF_TOOLTIP_MANAGER_H_ | |
6 #define ASH_COMMON_SHELF_SHELF_TOOLTIP_MANAGER_H_ | |
7 | |
8 #include "ash/ash_export.h" | |
9 #include "ash/common/shelf/wm_shelf_observer.h" | |
10 #include "base/macros.h" | |
11 #include "base/memory/weak_ptr.h" | |
12 #include "base/timer/timer.h" | |
13 #include "ui/events/event_handler.h" | |
14 #include "ui/views/pointer_watcher.h" | |
15 | |
16 namespace views { | |
17 class BubbleDialogDelegateView; | |
18 class View; | |
19 } | |
20 | |
21 namespace ash { | |
22 class ShelfView; | |
23 | |
24 namespace test { | |
25 class ShelfTooltipManagerTest; | |
26 class ShelfViewTest; | |
27 } | |
28 | |
29 // ShelfTooltipManager manages the tooltip bubble that appears for shelf items. | |
30 class ASH_EXPORT ShelfTooltipManager : public ui::EventHandler, | |
31 public views::PointerWatcher, | |
32 public WmShelfObserver { | |
33 public: | |
34 explicit ShelfTooltipManager(ShelfView* shelf_view); | |
35 ~ShelfTooltipManager() override; | |
36 | |
37 // Initializes the tooltip manager once the shelf is shown. | |
38 void Init(); | |
39 | |
40 // Closes the tooltip. | |
41 void Close(); | |
42 | |
43 // Returns true if the tooltip is currently visible. | |
44 bool IsVisible() const; | |
45 | |
46 // Returns the view to which the tooltip bubble is anchored. May be null. | |
47 views::View* GetCurrentAnchorView() const; | |
48 | |
49 // Show the tooltip bubble for the specified view. | |
50 void ShowTooltip(views::View* view); | |
51 void ShowTooltipWithDelay(views::View* view); | |
52 | |
53 // Set the timer delay in ms for testing. | |
54 void set_timer_delay_for_test(int timer_delay) { timer_delay_ = timer_delay; } | |
55 | |
56 protected: | |
57 // ui::EventHandler overrides: | |
58 void OnMouseEvent(ui::MouseEvent* event) override; | |
59 | |
60 // views::PointerWatcher overrides: | |
61 void OnPointerEventObserved(const ui::PointerEvent& event, | |
62 const gfx::Point& location_in_screen, | |
63 views::Widget* target) override; | |
64 | |
65 // WmShelfObserver overrides: | |
66 void WillChangeVisibilityState(ShelfVisibilityState new_state) override; | |
67 void OnAutoHideStateChanged(ShelfAutoHideState new_state) override; | |
68 | |
69 private: | |
70 class ShelfTooltipBubble; | |
71 friend class test::ShelfViewTest; | |
72 friend class test::ShelfTooltipManagerTest; | |
73 | |
74 // A helper function to check for shelf visibility and view validity. | |
75 bool ShouldShowTooltipForView(views::View* view); | |
76 | |
77 int timer_delay_; | |
78 base::OneShotTimer timer_; | |
79 | |
80 ShelfView* shelf_view_; | |
81 views::BubbleDialogDelegateView* bubble_; | |
82 | |
83 base::WeakPtrFactory<ShelfTooltipManager> weak_factory_; | |
84 | |
85 DISALLOW_COPY_AND_ASSIGN(ShelfTooltipManager); | |
86 }; | |
87 | |
88 } // namespace ash | |
89 | |
90 #endif // ASH_COMMON_SHELF_SHELF_TOOLTIP_MANAGER_H_ | |
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