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1 /* | 1 /* |
2 * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved. | 2 * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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26 #ifndef Scrollbar_h | 26 #ifndef Scrollbar_h |
27 #define Scrollbar_h | 27 #define Scrollbar_h |
28 | 28 |
29 #include "platform/Timer.h" | 29 #include "platform/Timer.h" |
30 #include "platform/Widget.h" | 30 #include "platform/Widget.h" |
31 #include "platform/graphics/paint/DisplayItem.h" | 31 #include "platform/graphics/paint/DisplayItem.h" |
32 #include "platform/heap/Handle.h" | 32 #include "platform/heap/Handle.h" |
33 #include "platform/scroll/ScrollTypes.h" | 33 #include "platform/scroll/ScrollTypes.h" |
34 #include "platform/scroll/ScrollbarThemeClient.h" | 34 #include "platform/scroll/ScrollbarThemeClient.h" |
35 #include "wtf/MathExtras.h" | 35 #include "wtf/MathExtras.h" |
36 #include "wtf/PassRefPtr.h" | |
37 | 36 |
38 namespace blink { | 37 namespace blink { |
39 | 38 |
40 class GraphicsContext; | 39 class GraphicsContext; |
41 class HostWindow; | 40 class HostWindow; |
42 class IntRect; | 41 class IntRect; |
43 class PlatformGestureEvent; | 42 class PlatformGestureEvent; |
44 class PlatformMouseEvent; | 43 class PlatformMouseEvent; |
45 class ScrollAnimatorBase; | 44 class ScrollAnimatorBase; |
46 class ScrollableArea; | 45 class ScrollableArea; |
47 class ScrollbarTheme; | 46 class ScrollbarTheme; |
48 | 47 |
49 class PLATFORM_EXPORT Scrollbar : public Widget, public ScrollbarThemeClient { | 48 class PLATFORM_EXPORT Scrollbar : public Widget, public ScrollbarThemeClient { |
50 public: | 49 public: |
51 static RawPtr<Scrollbar> create(ScrollableArea*, ScrollbarOrientation, Scrol
lbarControlSize, HostWindow*); | 50 static Scrollbar* create(ScrollableArea* scrollableArea, ScrollbarOrientatio
n orientation, ScrollbarControlSize size, HostWindow* hostWindow) |
| 51 { |
| 52 return new Scrollbar(scrollableArea, orientation, size, hostWindow); |
| 53 } |
52 | 54 |
53 // Theme object ownership remains with the caller and it must outlive the sc
rollbar. | 55 // Theme object ownership remains with the caller and it must outlive the sc
rollbar. |
54 static RawPtr<Scrollbar> createForTesting(ScrollableArea*, ScrollbarOrientat
ion, ScrollbarControlSize, ScrollbarTheme*); | 56 static Scrollbar* createForTesting(ScrollableArea* scrollableArea, Scrollbar
Orientation orientation, ScrollbarControlSize size, ScrollbarTheme* theme) |
| 57 { |
| 58 return new Scrollbar(scrollableArea, orientation, size, nullptr, theme); |
| 59 } |
55 | 60 |
56 ~Scrollbar() override; | 61 ~Scrollbar() override; |
57 | 62 |
58 // ScrollbarThemeClient implementation. | 63 // ScrollbarThemeClient implementation. |
59 int x() const override { return Widget::x(); } | 64 int x() const override { return Widget::x(); } |
60 int y() const override { return Widget::y(); } | 65 int y() const override { return Widget::y(); } |
61 int width() const override { return Widget::width(); } | 66 int width() const override { return Widget::width(); } |
62 int height() const override { return Widget::height(); } | 67 int height() const override { return Widget::height(); } |
63 IntSize size() const override { return Widget::size(); } | 68 IntSize size() const override { return Widget::size(); } |
64 IntPoint location() const override { return Widget::location(); } | 69 IntPoint location() const override { return Widget::location(); } |
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169 // may be cached in a GPU texture (and is only guaranteed to be repainted if | 174 // may be cached in a GPU texture (and is only guaranteed to be repainted if |
170 // ThumbPart is invalidated). | 175 // ThumbPart is invalidated). |
171 // | 176 // |
172 // Even if no parts are invalidated, the scrollbar may need to be redrawn | 177 // Even if no parts are invalidated, the scrollbar may need to be redrawn |
173 // if, for instance, the thumb moves without changing the appearance of any | 178 // if, for instance, the thumb moves without changing the appearance of any |
174 // part. | 179 // part. |
175 void setNeedsPaintInvalidation(ScrollbarPart invalidParts); | 180 void setNeedsPaintInvalidation(ScrollbarPart invalidParts); |
176 | 181 |
177 // Promptly unregister from the theme manager + run finalizers of derived Sc
rollbars. | 182 // Promptly unregister from the theme manager + run finalizers of derived Sc
rollbars. |
178 EAGERLY_FINALIZE(); | 183 EAGERLY_FINALIZE(); |
179 #if ENABLE(OILPAN) | |
180 DECLARE_EAGER_FINALIZATION_OPERATOR_NEW(); | 184 DECLARE_EAGER_FINALIZATION_OPERATOR_NEW(); |
181 #endif | |
182 DECLARE_VIRTUAL_TRACE(); | 185 DECLARE_VIRTUAL_TRACE(); |
183 | 186 |
184 protected: | 187 protected: |
185 Scrollbar(ScrollableArea*, ScrollbarOrientation, ScrollbarControlSize, HostW
indow* = 0, ScrollbarTheme* = 0); | 188 Scrollbar(ScrollableArea*, ScrollbarOrientation, ScrollbarControlSize, HostW
indow* = 0, ScrollbarTheme* = 0); |
186 | 189 |
187 void autoscrollTimerFired(Timer<Scrollbar>*); | 190 void autoscrollTimerFired(Timer<Scrollbar>*); |
188 void startTimerIfNeeded(double delay); | 191 void startTimerIfNeeded(double delay); |
189 void stopTimerIfNeeded(); | 192 void stopTimerIfNeeded(); |
190 void autoscrollPressedPart(double delay); | 193 void autoscrollPressedPart(double delay); |
191 ScrollDirectionPhysical pressedPartScrollDirectionPhysical(); | 194 ScrollDirectionPhysical pressedPartScrollDirectionPhysical(); |
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228 | 231 |
229 bool m_trackNeedsRepaint; | 232 bool m_trackNeedsRepaint; |
230 bool m_thumbNeedsRepaint; | 233 bool m_thumbNeedsRepaint; |
231 }; | 234 }; |
232 | 235 |
233 DEFINE_TYPE_CASTS(Scrollbar, Widget, widget, widget->isScrollbar(), widget.isScr
ollbar()); | 236 DEFINE_TYPE_CASTS(Scrollbar, Widget, widget, widget->isScrollbar(), widget.isScr
ollbar()); |
234 | 237 |
235 } // namespace blink | 238 } // namespace blink |
236 | 239 |
237 #endif // Scrollbar_h | 240 #endif // Scrollbar_h |
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