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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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3584 | 3584 |
3585 bool did_scroll_top_controls = | 3585 bool did_scroll_top_controls = |
3586 initial_top_controls_offset != | 3586 initial_top_controls_offset != |
3587 browser_controls_offset_manager_->ControlsTopOffset(); | 3587 browser_controls_offset_manager_->ControlsTopOffset(); |
3588 | 3588 |
3589 InputHandlerScrollResult scroll_result; | 3589 InputHandlerScrollResult scroll_result; |
3590 scroll_result.did_scroll = did_scroll_content || did_scroll_top_controls; | 3590 scroll_result.did_scroll = did_scroll_content || did_scroll_top_controls; |
3591 scroll_result.did_overscroll_root = !unused_root_delta.IsZero(); | 3591 scroll_result.did_overscroll_root = !unused_root_delta.IsZero(); |
3592 scroll_result.accumulated_root_overscroll = accumulated_root_overscroll_; | 3592 scroll_result.accumulated_root_overscroll = accumulated_root_overscroll_; |
3593 scroll_result.unused_scroll_delta = unused_root_delta; | 3593 scroll_result.unused_scroll_delta = unused_root_delta; |
3594 | 3594 scroll_result.scroll_boundary_behavior = |
| 3595 active_tree()->scroll_boundary_behavior(); |
3595 if (scroll_result.did_scroll) { | 3596 if (scroll_result.did_scroll) { |
3596 // Scrolling can change the root scroll offset, so inform the synchronous | 3597 // Scrolling can change the root scroll offset, so inform the synchronous |
3597 // input handler. | 3598 // input handler. |
3598 UpdateRootLayerStateForSynchronousInputHandler(); | 3599 UpdateRootLayerStateForSynchronousInputHandler(); |
3599 } | 3600 } |
3600 | 3601 |
3601 // Update compositor worker mutations which may respond to scrolling. | 3602 // Update compositor worker mutations which may respond to scrolling. |
3602 Mutate(CurrentBeginFrameArgs().frame_time); | 3603 Mutate(CurrentBeginFrameArgs().frame_time); |
3603 | 3604 |
3604 return scroll_result; | 3605 return scroll_result; |
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4483 | 4484 |
4484 void LayerTreeHostImpl::ShowScrollbarsForImplScroll(ElementId element_id) { | 4485 void LayerTreeHostImpl::ShowScrollbarsForImplScroll(ElementId element_id) { |
4485 if (!element_id) | 4486 if (!element_id) |
4486 return; | 4487 return; |
4487 if (ScrollbarAnimationController* animation_controller = | 4488 if (ScrollbarAnimationController* animation_controller = |
4488 ScrollbarAnimationControllerForElementId(element_id)) | 4489 ScrollbarAnimationControllerForElementId(element_id)) |
4489 animation_controller->DidScrollUpdate(); | 4490 animation_controller->DidScrollUpdate(); |
4490 } | 4491 } |
4491 | 4492 |
4492 } // namespace cc | 4493 } // namespace cc |
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