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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_host_impl.h" | 5 #include "cc/trees/layer_tree_host_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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3364 | 3364 |
3365 bool did_scroll_top_controls = | 3365 bool did_scroll_top_controls = |
3366 initial_top_controls_offset != | 3366 initial_top_controls_offset != |
3367 browser_controls_offset_manager_->ControlsTopOffset(); | 3367 browser_controls_offset_manager_->ControlsTopOffset(); |
3368 | 3368 |
3369 InputHandlerScrollResult scroll_result; | 3369 InputHandlerScrollResult scroll_result; |
3370 scroll_result.did_scroll = did_scroll_content || did_scroll_top_controls; | 3370 scroll_result.did_scroll = did_scroll_content || did_scroll_top_controls; |
3371 scroll_result.did_overscroll_root = !unused_root_delta.IsZero(); | 3371 scroll_result.did_overscroll_root = !unused_root_delta.IsZero(); |
3372 scroll_result.accumulated_root_overscroll = accumulated_root_overscroll_; | 3372 scroll_result.accumulated_root_overscroll = accumulated_root_overscroll_; |
3373 scroll_result.unused_scroll_delta = unused_root_delta; | 3373 scroll_result.unused_scroll_delta = unused_root_delta; |
3374 | 3374 scroll_result.scroll_boundary_behavior = |
| 3375 active_tree()->scroll_boundary_behavior(); |
3375 if (scroll_result.did_scroll) { | 3376 if (scroll_result.did_scroll) { |
3376 // Scrolling can change the root scroll offset, so inform the synchronous | 3377 // Scrolling can change the root scroll offset, so inform the synchronous |
3377 // input handler. | 3378 // input handler. |
3378 UpdateRootLayerStateForSynchronousInputHandler(); | 3379 UpdateRootLayerStateForSynchronousInputHandler(); |
3379 } | 3380 } |
3380 | 3381 |
3381 // Update compositor worker mutations which may respond to scrolling. | 3382 // Update compositor worker mutations which may respond to scrolling. |
3382 Mutate(CurrentBeginFrameArgs().frame_time); | 3383 Mutate(CurrentBeginFrameArgs().frame_time); |
3383 | 3384 |
3384 return scroll_result; | 3385 return scroll_result; |
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4333 | 4334 |
4334 void LayerTreeHostImpl::ShowScrollbarsForImplScroll(ElementId element_id) { | 4335 void LayerTreeHostImpl::ShowScrollbarsForImplScroll(ElementId element_id) { |
4335 if (!element_id) | 4336 if (!element_id) |
4336 return; | 4337 return; |
4337 if (ScrollbarAnimationController* animation_controller = | 4338 if (ScrollbarAnimationController* animation_controller = |
4338 ScrollbarAnimationControllerForElementId(element_id)) | 4339 ScrollbarAnimationControllerForElementId(element_id)) |
4339 animation_controller->DidScrollUpdate(); | 4340 animation_controller->DidScrollUpdate(); |
4340 } | 4341 } |
4341 | 4342 |
4342 } // namespace cc | 4343 } // namespace cc |
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