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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef ASH_COMMON_PALETTE_DELEGATE_H_ | 5 #ifndef ASH_COMMON_PALETTE_DELEGATE_H_ |
6 #define ASH_COMMON_PALETTE_DELEGATE_H_ | 6 #define ASH_COMMON_PALETTE_DELEGATE_H_ |
7 | 7 |
8 #include "ash/ash_export.h" | 8 #include "ash/ash_export.h" |
9 #include "base/callback.h" | 9 #include "base/callback.h" |
10 #include "base/callback_list.h" | 10 #include "base/callback_list.h" |
11 #include "base/macros.h" | 11 #include "base/macros.h" |
12 #include "ui/events/devices/stylus_state.h" | 12 #include "ui/events/devices/stylus_state.h" |
13 | 13 |
14 namespace ash { | 14 namespace ash { |
15 | 15 |
16 // This delegate allows the UI code in ash, e.g. |PaletteTray|, to perform | 16 // This delegate allows the UI code in ash, e.g. |PaletteTray|, to perform |
17 // Chrome-specific actions. | 17 // Chrome-specific actions. |
18 class PaletteDelegate { | 18 class PaletteDelegate { |
19 public: | 19 public: |
20 using EnableListener = base::Callback<void(bool)>; | 20 using EnableListener = base::Callback<void(bool)>; |
21 using EnableListenerSubscription = | 21 using EnableListenerSubscription = |
22 base::CallbackList<void(bool)>::Subscription; | 22 base::CallbackList<void(bool)>::Subscription; |
23 using OnStylusStateChangedCallback = base::Callback<void(ui::StylusState)>; | |
24 | 23 |
25 virtual ~PaletteDelegate() {} | 24 virtual ~PaletteDelegate() {} |
26 | 25 |
27 // Sets callback function that will receive the current state of the palette | 26 // Sets callback function that will receive the current state of the palette |
28 // enabled pref. The callback will be invoked once the initial pref value is | 27 // enabled pref. The callback will be invoked once the initial pref value is |
29 // available. | 28 // available. |
30 virtual std::unique_ptr<EnableListenerSubscription> AddPaletteEnableListener( | 29 virtual std::unique_ptr<EnableListenerSubscription> AddPaletteEnableListener( |
31 const EnableListener& on_state_changed) = 0; | 30 const EnableListener& on_state_changed) = 0; |
32 | 31 |
33 // Create a new note. | 32 // Create a new note. |
34 virtual void CreateNote() = 0; | 33 virtual void CreateNote() = 0; |
35 | 34 |
36 // Returns true if there is a note-taking application available. | 35 // Returns true if there is a note-taking application available. |
37 virtual bool HasNoteApp() = 0; | 36 virtual bool HasNoteApp() = 0; |
38 | 37 |
39 // Set callback that is run when a stylus is inserted or removed. | |
40 virtual void SetStylusStateChangedCallback( | |
41 const OnStylusStateChangedCallback& on_stylus_state_changed) = 0; | |
42 | |
43 // Returns true if the palette should be automatically opened on an eject | 38 // Returns true if the palette should be automatically opened on an eject |
44 // event. | 39 // event. |
45 virtual bool ShouldAutoOpenPalette() = 0; | 40 virtual bool ShouldAutoOpenPalette() = 0; |
46 | 41 |
47 // Returns true if the palette should be displayed. This is the one-shot | 42 // Returns true if the palette should be displayed. This is the one-shot |
48 // equivalent to AddPaletteEnableListener. | 43 // equivalent to AddPaletteEnableListener. |
49 virtual bool ShouldShowPalette() = 0; | 44 virtual bool ShouldShowPalette() = 0; |
50 | 45 |
51 // Take a screenshot of the entire window. | 46 // Take a screenshot of the entire window. |
52 virtual void TakeScreenshot() = 0; | 47 virtual void TakeScreenshot() = 0; |
53 | 48 |
54 // Take a screenshot of a user-selected region. |done| is called when the | 49 // Take a screenshot of a user-selected region. |done| is called when the |
55 // partial screenshot session has finished; a screenshot may or may not have | 50 // partial screenshot session has finished; a screenshot may or may not have |
56 // been taken. | 51 // been taken. |
57 virtual void TakePartialScreenshot(const base::Closure& done) = 0; | 52 virtual void TakePartialScreenshot(const base::Closure& done) = 0; |
58 | 53 |
59 // Cancels any active partial screenshot session. | 54 // Cancels any active partial screenshot session. |
60 virtual void CancelPartialScreenshot() = 0; | 55 virtual void CancelPartialScreenshot() = 0; |
61 | 56 |
62 private: | 57 private: |
63 DISALLOW_ASSIGN(PaletteDelegate); | 58 DISALLOW_ASSIGN(PaletteDelegate); |
64 }; | 59 }; |
65 | 60 |
66 } // namespace ash | 61 } // namespace ash |
67 | 62 |
68 #endif // ASH_COMMON_PALETTE_DELEGATE_H_ | 63 #endif // ASH_COMMON_PALETTE_DELEGATE_H_ |
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