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1 // Copyright 2016 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_SYSTEM_TOAST_TOAST_OVERLAY_H_ | |
6 #define ASH_COMMON_SYSTEM_TOAST_TOAST_OVERLAY_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "ash/ash_export.h" | |
11 #include "base/optional.h" | |
12 #include "base/strings/string16.h" | |
13 #include "ui/compositor/layer_animation_observer.h" | |
14 #include "ui/events/event.h" | |
15 #include "ui/events/event_constants.h" | |
16 #include "ui/gfx/geometry/size.h" | |
17 | |
18 namespace gfx { | |
19 class Rect; | |
20 } | |
21 | |
22 namespace views { | |
23 class Widget; | |
24 } | |
25 | |
26 namespace ash { | |
27 | |
28 class ToastManagerTest; | |
29 class ToastOverlayView; | |
30 class ToastOverlayButton; | |
31 | |
32 class ASH_EXPORT ToastOverlay : public ui::ImplicitAnimationObserver { | |
33 public: | |
34 class ASH_EXPORT Delegate { | |
35 public: | |
36 virtual ~Delegate() {} | |
37 virtual void OnClosed() = 0; | |
38 }; | |
39 | |
40 // Creates the Toast overlay UI. |text| is the message to be shown, and | |
41 // |dismiss_text| is the message for the button to dismiss the toast message. | |
42 // If |dismiss_text| is null, no dismiss button will be shown. If | |
43 // |dismiss_text| has a value but the string is empty, the default text is | |
44 // used. | |
45 ToastOverlay(Delegate* delegate, | |
46 const base::string16& text, | |
47 base::Optional<base::string16> dismiss_text); | |
48 ~ToastOverlay() override; | |
49 | |
50 // Shows or hides the overlay. | |
51 void Show(bool visible); | |
52 | |
53 private: | |
54 friend class ToastManagerTest; | |
55 | |
56 // Returns the current bounds of the overlay, which is based on visibility. | |
57 gfx::Rect CalculateOverlayBounds(); | |
58 | |
59 // ui::ImplicitAnimationObserver: | |
60 void OnImplicitAnimationsScheduled() override; | |
61 void OnImplicitAnimationsCompleted() override; | |
62 | |
63 views::Widget* widget_for_testing(); | |
64 ToastOverlayButton* dismiss_button_for_testing(); | |
65 void ClickDismissButtonForTesting(const ui::Event& event); | |
66 | |
67 Delegate* const delegate_; | |
68 const base::string16 text_; | |
69 const base::Optional<base::string16> dismiss_text_; | |
70 std::unique_ptr<views::Widget> overlay_widget_; | |
71 std::unique_ptr<ToastOverlayView> overlay_view_; | |
72 gfx::Size widget_size_; | |
73 | |
74 DISALLOW_COPY_AND_ASSIGN(ToastOverlay); | |
75 }; | |
76 | |
77 } // namespace ash | |
78 | |
79 #endif // ASH_COMMON_SYSTEM_TOAST_TOAST_OVERLAY_H_ | |
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