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1 /* | 1 /* |
2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 Google 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 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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166 // This is not a requirement of the scroll parent. | 166 // This is not a requirement of the scroll parent. |
167 virtual void setClipParent(WebLayer*) = 0; | 167 virtual void setClipParent(WebLayer*) = 0; |
168 | 168 |
169 // Scrolling | 169 // Scrolling |
170 virtual void setScrollPosition(WebPoint) = 0; | 170 virtual void setScrollPosition(WebPoint) = 0; |
171 virtual WebPoint scrollPosition() const = 0; | 171 virtual WebPoint scrollPosition() const = 0; |
172 | 172 |
173 virtual WebSize maxScrollPosition() const = 0; | 173 virtual WebSize maxScrollPosition() const = 0; |
174 | 174 |
175 // To set a WebLayer as scrollable we must specify the corresponding clip la
yer. | 175 // To set a WebLayer as scrollable we must specify the corresponding clip la
yer. |
176 // TODO(wjmaclean) Make this pure virtual once https://codereview.chromium.o
rg/23983047 lands. | 176 virtual void setScrollClipLayer(WebLayer*) = 0; |
177 virtual void setScrollClipLayer(WebLayer*) { } | |
178 virtual bool scrollable() const = 0; | 177 virtual bool scrollable() const = 0; |
179 | |
180 virtual void setUserScrollable(bool horizontal, bool vertical) = 0; | 178 virtual void setUserScrollable(bool horizontal, bool vertical) = 0; |
181 virtual bool userScrollableHorizontal() const = 0; | 179 virtual bool userScrollableHorizontal() const = 0; |
182 virtual bool userScrollableVertical() const = 0; | 180 virtual bool userScrollableVertical() const = 0; |
183 | 181 |
184 virtual void setHaveWheelEventHandlers(bool) = 0; | 182 virtual void setHaveWheelEventHandlers(bool) = 0; |
185 virtual bool haveWheelEventHandlers() const = 0; | 183 virtual bool haveWheelEventHandlers() const = 0; |
186 | 184 |
187 virtual void setShouldScrollOnMainThread(bool) = 0; | 185 virtual void setShouldScrollOnMainThread(bool) = 0; |
188 virtual bool shouldScrollOnMainThread() const = 0; | 186 virtual bool shouldScrollOnMainThread() const = 0; |
189 | 187 |
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209 virtual void setScrollClient(WebLayerScrollClient*) = 0; | 207 virtual void setScrollClient(WebLayerScrollClient*) = 0; |
210 | 208 |
211 // Forces this layer to use a render surface. There is no benefit in doing | 209 // Forces this layer to use a render surface. There is no benefit in doing |
212 // so, but this is to facilitate benchmarks and tests. | 210 // so, but this is to facilitate benchmarks and tests. |
213 virtual void setForceRenderSurface(bool) = 0; | 211 virtual void setForceRenderSurface(bool) = 0; |
214 | 212 |
215 // True if the layer is not part of a tree attached to a WebLayerTreeView. | 213 // True if the layer is not part of a tree attached to a WebLayerTreeView. |
216 virtual bool isOrphan() const = 0; | 214 virtual bool isOrphan() const = 0; |
217 | 215 |
218 virtual void setWebLayerClient(WebLayerClient*) = 0; | 216 virtual void setWebLayerClient(WebLayerClient*) = 0; |
219 | |
220 // TODO(wjmaclean) Remove next two lines once https://codereview.chromium.or
g/23983047 lands. | |
221 virtual void setMaxScrollPosition(WebSize) { } | |
222 virtual void setScrollable(bool) { } | |
223 }; | 217 }; |
224 | 218 |
225 } // namespace blink | 219 } // namespace blink |
226 | 220 |
227 #endif // WebLayer_h | 221 #endif // WebLayer_h |
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