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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/trees/layer_tree_impl.h" | 5 #include "cc/trees/layer_tree_impl.h" |
6 | 6 |
7 #include <stddef.h> | 7 #include <stddef.h> |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <algorithm> | 10 #include <algorithm> |
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235 return; | 235 return; |
236 | 236 |
237 gfx::ScrollOffset current_offset = scroll_layer->CurrentScrollOffset(); | 237 gfx::ScrollOffset current_offset = scroll_layer->CurrentScrollOffset(); |
238 if (IsViewportLayerId(scroll_layer_id)) { | 238 if (IsViewportLayerId(scroll_layer_id)) { |
239 current_offset += InnerViewportScrollLayer()->CurrentScrollOffset(); | 239 current_offset += InnerViewportScrollLayer()->CurrentScrollOffset(); |
240 if (OuterViewportContainerLayer()) | 240 if (OuterViewportContainerLayer()) |
241 clip_size.SetToMin(OuterViewportContainerLayer()->BoundsForScrolling()); | 241 clip_size.SetToMin(OuterViewportContainerLayer()->BoundsForScrolling()); |
242 clip_size.Scale(1 / current_page_scale_factor()); | 242 clip_size.Scale(1 / current_page_scale_factor()); |
243 } | 243 } |
244 | 244 |
245 bool scrollbar_needs_animation = false; | |
246 bool clip_layer_size_did_change = false; | |
247 bool scroll_layer_size_did_change = false; | |
248 bool y_offset_did_change = false; | 245 bool y_offset_did_change = false; |
249 for (auto* scrollbar : ScrollbarsFor(scroll_layer->element_id())) { | 246 for (auto* scrollbar : ScrollbarsFor(scroll_layer->element_id())) { |
250 if (scrollbar->orientation() == HORIZONTAL) { | 247 if (scrollbar->orientation() == HORIZONTAL) { |
251 scrollbar_needs_animation |= scrollbar->SetCurrentPos(current_offset.x()); | 248 scrollbar->SetCurrentPos(current_offset.x()); |
252 clip_layer_size_did_change |= | 249 scrollbar->SetClipLayerLength(clip_size.width()); |
253 scrollbar->SetClipLayerLength(clip_size.width()); | 250 scrollbar->SetScrollLayerLength(scroll_size.width()); |
254 scroll_layer_size_did_change |= | |
255 scrollbar->SetScrollLayerLength(scroll_size.width()); | |
256 } else { | 251 } else { |
257 scrollbar_needs_animation |= y_offset_did_change |= | 252 y_offset_did_change = scrollbar->SetCurrentPos(current_offset.y()); |
258 scrollbar->SetCurrentPos(current_offset.y()); | 253 scrollbar->SetClipLayerLength(clip_size.height()); |
259 clip_layer_size_did_change |= | 254 scrollbar->SetScrollLayerLength(scroll_size.height()); |
260 scrollbar->SetClipLayerLength(clip_size.height()); | |
261 scroll_layer_size_did_change |= | |
262 scrollbar->SetScrollLayerLength(scroll_size.height()); | |
263 } | 255 } |
264 scrollbar_needs_animation |= | 256 scrollbar->SetVerticalAdjust(clip_layer->ViewportBoundsDelta().y()); |
265 scrollbar->SetVerticalAdjust(clip_layer->ViewportBoundsDelta().y()); | |
266 } | 257 } |
267 | 258 |
268 scrollbar_needs_animation |= | |
269 (clip_layer_size_did_change || scroll_layer_size_did_change); | |
270 | |
271 if (y_offset_did_change && IsViewportLayerId(scroll_layer_id)) | 259 if (y_offset_did_change && IsViewportLayerId(scroll_layer_id)) |
272 TRACE_COUNTER_ID1("cc", "scroll_offset_y", scroll_layer->id(), | 260 TRACE_COUNTER_ID1("cc", "scroll_offset_y", scroll_layer->id(), |
273 current_offset.y()); | 261 current_offset.y()); |
274 | |
275 if (scrollbar_needs_animation) { | |
276 ScrollbarAnimationController* controller = | |
277 layer_tree_host_impl_->ScrollbarAnimationControllerForElementId( | |
278 scroll_layer->element_id()); | |
279 if (!controller) | |
280 return; | |
281 | |
282 // TODO(chaopeng) clip_layer_size_did_change should call DidResize after | |
283 // crbug.com/701810 got fixed. | |
284 if (scroll_layer_size_did_change) { | |
285 controller->DidResize(); | |
286 } else { | |
287 controller->DidScrollUpdate(); | |
288 } | |
289 } | |
290 } | 262 } |
291 | 263 |
292 RenderSurfaceImpl* LayerTreeImpl::RootRenderSurface() const { | 264 RenderSurfaceImpl* LayerTreeImpl::RootRenderSurface() const { |
293 return layer_list_.empty() ? nullptr : layer_list_[0]->GetRenderSurface(); | 265 return layer_list_.empty() ? nullptr : layer_list_[0]->GetRenderSurface(); |
294 } | 266 } |
295 | 267 |
296 bool LayerTreeImpl::LayerListIsEmpty() const { | 268 bool LayerTreeImpl::LayerListIsEmpty() const { |
297 return layer_list_.empty(); | 269 return layer_list_.empty(); |
298 } | 270 } |
299 | 271 |
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487 | 459 |
488 if (hud_layer()) | 460 if (hud_layer()) |
489 target_tree->set_hud_layer(static_cast<HeadsUpDisplayLayerImpl*>( | 461 target_tree->set_hud_layer(static_cast<HeadsUpDisplayLayerImpl*>( |
490 target_tree->LayerById(hud_layer()->id()))); | 462 target_tree->LayerById(hud_layer()->id()))); |
491 else | 463 else |
492 target_tree->set_hud_layer(NULL); | 464 target_tree->set_hud_layer(NULL); |
493 | 465 |
494 target_tree->has_ever_been_drawn_ = false; | 466 target_tree->has_ever_been_drawn_ = false; |
495 | 467 |
496 // Note: this needs to happen after SetPropertyTrees. | 468 // Note: this needs to happen after SetPropertyTrees. |
497 target_tree->ShowScrollbars(); | 469 target_tree->HandleScrollbarShowRequestsFromMain(); |
498 } | 470 } |
499 | 471 |
500 void LayerTreeImpl::ShowScrollbars() { | 472 void LayerTreeImpl::HandleScrollbarShowRequestsFromMain() { |
501 LayerTreeHostCommon::CallFunctionForEveryLayer(this, [this]( | 473 LayerTreeHostCommon::CallFunctionForEveryLayer(this, [this]( |
502 LayerImpl* layer) { | 474 LayerImpl* layer) { |
503 if (!layer->needs_show_scrollbars()) | 475 if (!layer->needs_show_scrollbars()) |
504 return; | 476 return; |
505 ScrollbarAnimationController* controller = | 477 ScrollbarAnimationController* controller = |
506 layer_tree_host_impl_->ScrollbarAnimationControllerForElementId( | 478 layer_tree_host_impl_->ScrollbarAnimationControllerForElementId( |
507 layer->element_id()); | 479 layer->element_id()); |
508 if (controller) { | 480 if (controller) { |
509 controller->DidRequestShowFromMainThread(); | 481 controller->DidRequestShowFromMainThread(); |
510 layer->set_needs_show_scrollbars(false); | 482 layer->set_needs_show_scrollbars(false); |
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923 return true; | 895 return true; |
924 } | 896 } |
925 | 897 |
926 void LayerTreeImpl::DidUpdatePageScale() { | 898 void LayerTreeImpl::DidUpdatePageScale() { |
927 if (IsActiveTree()) | 899 if (IsActiveTree()) |
928 page_scale_factor()->SetCurrent( | 900 page_scale_factor()->SetCurrent( |
929 ClampPageScaleFactorToLimits(current_page_scale_factor())); | 901 ClampPageScaleFactorToLimits(current_page_scale_factor())); |
930 | 902 |
931 set_needs_update_draw_properties(); | 903 set_needs_update_draw_properties(); |
932 DidUpdateScrollState(inner_viewport_scroll_layer_id_); | 904 DidUpdateScrollState(inner_viewport_scroll_layer_id_); |
| 905 |
| 906 if (IsActiveTree() && layer_tree_host_impl_->ViewportMainScrollLayer()) { |
| 907 if (ScrollbarAnimationController* controller = |
| 908 layer_tree_host_impl_->ScrollbarAnimationControllerForElementId( |
| 909 OuterViewportScrollLayer()->element_id())) |
| 910 controller->DidScrollUpdate(); |
| 911 } |
933 } | 912 } |
934 | 913 |
935 void LayerTreeImpl::SetDeviceScaleFactor(float device_scale_factor) { | 914 void LayerTreeImpl::SetDeviceScaleFactor(float device_scale_factor) { |
936 if (device_scale_factor == device_scale_factor_) | 915 if (device_scale_factor == device_scale_factor_) |
937 return; | 916 return; |
938 device_scale_factor_ = device_scale_factor; | 917 device_scale_factor_ = device_scale_factor; |
939 | 918 |
940 set_needs_update_draw_properties(); | 919 set_needs_update_draw_properties(); |
941 if (IsActiveTree()) | 920 if (IsActiveTree()) |
942 layer_tree_host_impl_->SetFullViewportDamage(); | 921 layer_tree_host_impl_->SetFullViewportDamage(); |
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2143 | 2122 |
2144 void LayerTreeImpl::ResetAllChangeTracking() { | 2123 void LayerTreeImpl::ResetAllChangeTracking() { |
2145 layers_that_should_push_properties_.clear(); | 2124 layers_that_should_push_properties_.clear(); |
2146 // Iterate over all layers, including masks. | 2125 // Iterate over all layers, including masks. |
2147 for (auto& layer : *layers_) | 2126 for (auto& layer : *layers_) |
2148 layer->ResetChangeTracking(); | 2127 layer->ResetChangeTracking(); |
2149 property_trees_.ResetAllChangeTracking(); | 2128 property_trees_.ResetAllChangeTracking(); |
2150 } | 2129 } |
2151 | 2130 |
2152 } // namespace cc | 2131 } // namespace cc |
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