OLD | NEW |
| (Empty) |
1 // Copyright (c) 2010 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 PDF_FADING_CONTROLS_H_ | |
6 #define PDF_FADING_CONTROLS_H_ | |
7 | |
8 #include <list> | |
9 | |
10 #include "pdf/control.h" | |
11 | |
12 namespace chrome_pdf { | |
13 | |
14 class FadingControls : public Control, | |
15 public ControlOwner { | |
16 public: | |
17 enum FadingState { | |
18 NONE, | |
19 FADING_IN, | |
20 FADING_OUT | |
21 }; | |
22 | |
23 FadingControls(); | |
24 virtual ~FadingControls(); | |
25 virtual bool CreateFadingControls( | |
26 uint32 id, const pp::Rect& rc, bool visible, | |
27 Control::Owner* delegate, uint8 transparency); | |
28 | |
29 // Control interface. | |
30 virtual void Paint(pp::ImageData* image_data, const pp::Rect& rc); | |
31 virtual bool HandleEvent(const pp::InputEvent& event); | |
32 virtual void OnTimerFired(uint32 timer_id); | |
33 virtual void EventCaptureReleased(); | |
34 virtual void MoveBy(const pp::Point& offset, bool invalidate); | |
35 | |
36 // ControlOwner interface. | |
37 virtual void OnEvent(uint32 control_id, uint32 event_id, void* data); | |
38 virtual void Invalidate(uint32 control_id, const pp::Rect& rc); | |
39 virtual uint32 ScheduleTimer(uint32 control_id, uint32 timeout_ms); | |
40 virtual void SetEventCapture(uint32 control_id, bool set_capture); | |
41 virtual void SetCursor(uint32 control_id, PP_CursorType_Dev cursor_type); | |
42 virtual pp::Instance* GetInstance(); | |
43 | |
44 // FadingControls interface | |
45 // This function takes ownership of the control, and will destoy it | |
46 // when control is destroyed. | |
47 // Input control MUST be located inside FadingControls boundaries, and has | |
48 // this instance of FadingControls as a delegate. | |
49 virtual bool AddControl(Control* control); | |
50 virtual void RemoveControl(uint32 control_id); | |
51 virtual Control* GetControl(uint32 id); | |
52 virtual pp::Rect GetControlsRect(); | |
53 | |
54 // Expand/Shrink area which triggers inner control appearance to the left. | |
55 virtual bool ExpandLeft(int offset); | |
56 | |
57 // Fade-in, then show controls for time_ms, and then fade-out. Any mouse | |
58 // event in this control area will interrupt splash mode. | |
59 virtual void Splash(uint32 time_ms); | |
60 | |
61 uint8 current_transparency() const { return current_transparency_; } | |
62 | |
63 private: | |
64 bool NotifyControls(const pp::InputEvent& event); | |
65 void FadeIn(); | |
66 void FadeOut(); | |
67 void OnFadingComplete(); | |
68 void CancelSplashMode(); | |
69 | |
70 std::list<Control*> controls_; | |
71 FadingState state_; | |
72 uint8 current_transparency_; | |
73 uint32 fading_timer_id_; | |
74 uint32 current_capture_control_; | |
75 uint32 fading_timeout_; | |
76 uint32 alpha_shift_; | |
77 bool splash_; | |
78 uint32 splash_timeout_; | |
79 }; | |
80 | |
81 } // namespace chrome_pdf | |
82 | |
83 #endif // PDF_FADING_CONTROLS_H_ | |
84 | |
OLD | NEW |