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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 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 #include "cc/layers/layer_impl.h" | 5 #include "cc/layers/layer_impl.h" |
6 | 6 |
7 #include "base/debug/trace_event.h" | 7 #include "base/debug/trace_event.h" |
8 #include "base/stringprintf.h" | 8 #include "base/stringprintf.h" |
9 #include "cc/animation/animation_registrar.h" | 9 #include "cc/animation/animation_registrar.h" |
10 #include "cc/animation/scrollbar_animation_controller.h" | 10 #include "cc/animation/scrollbar_animation_controller.h" |
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239 return; | 239 return; |
240 | 240 |
241 sent_scroll_delta_ = sent_scroll_delta; | 241 sent_scroll_delta_ = sent_scroll_delta; |
242 } | 242 } |
243 | 243 |
244 gfx::Vector2dF LayerImpl::ScrollBy(gfx::Vector2dF scroll) { | 244 gfx::Vector2dF LayerImpl::ScrollBy(gfx::Vector2dF scroll) { |
245 gfx::Vector2dF min_delta = -scroll_offset_; | 245 gfx::Vector2dF min_delta = -scroll_offset_; |
246 gfx::Vector2dF max_delta = max_scroll_offset_ - scroll_offset_; | 246 gfx::Vector2dF max_delta = max_scroll_offset_ - scroll_offset_; |
247 // Clamp new_delta so that position + delta stays within scroll bounds. | 247 // Clamp new_delta so that position + delta stays within scroll bounds. |
248 gfx::Vector2dF new_delta = (ScrollDelta() + scroll); | 248 gfx::Vector2dF new_delta = (ScrollDelta() + scroll); |
249 new_delta.ClampToMin(min_delta); | 249 new_delta.SetToMax(min_delta); |
250 new_delta.ClampToMax(max_delta); | 250 new_delta.SetToMin(max_delta); |
251 gfx::Vector2dF unscrolled = ScrollDelta() + scroll - new_delta; | 251 gfx::Vector2dF unscrolled = ScrollDelta() + scroll - new_delta; |
252 | 252 |
253 SetScrollDelta(new_delta); | 253 SetScrollDelta(new_delta); |
254 return unscrolled; | 254 return unscrolled; |
255 } | 255 } |
256 | 256 |
257 InputHandler::ScrollStatus LayerImpl::TryScroll( | 257 InputHandler::ScrollStatus LayerImpl::TryScroll( |
258 gfx::PointF screen_space_point, | 258 gfx::PointF screen_space_point, |
259 InputHandler::ScrollInputType type) const { | 259 InputHandler::ScrollInputType type) const { |
260 if (should_scroll_on_main_thread()) { | 260 if (should_scroll_on_main_thread()) { |
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1152 | 1152 |
1153 size_t LayerImpl::GPUMemoryUsageInBytes() const { return 0; } | 1153 size_t LayerImpl::GPUMemoryUsageInBytes() const { return 0; } |
1154 | 1154 |
1155 scoped_ptr<base::Value> LayerImpl::AsValue() const { | 1155 scoped_ptr<base::Value> LayerImpl::AsValue() const { |
1156 scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue()); | 1156 scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue()); |
1157 AsValueInto(state.get()); | 1157 AsValueInto(state.get()); |
1158 return state.PassAs<base::Value>(); | 1158 return state.PassAs<base::Value>(); |
1159 } | 1159 } |
1160 | 1160 |
1161 } // namespace cc | 1161 } // namespace cc |
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