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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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3545 | 3545 |
3546 bool did_scroll_top_controls = | 3546 bool did_scroll_top_controls = |
3547 initial_top_controls_offset != | 3547 initial_top_controls_offset != |
3548 browser_controls_offset_manager_->ControlsTopOffset(); | 3548 browser_controls_offset_manager_->ControlsTopOffset(); |
3549 | 3549 |
3550 InputHandlerScrollResult scroll_result; | 3550 InputHandlerScrollResult scroll_result; |
3551 scroll_result.did_scroll = did_scroll_content || did_scroll_top_controls; | 3551 scroll_result.did_scroll = did_scroll_content || did_scroll_top_controls; |
3552 scroll_result.did_overscroll_root = !unused_root_delta.IsZero(); | 3552 scroll_result.did_overscroll_root = !unused_root_delta.IsZero(); |
3553 scroll_result.accumulated_root_overscroll = accumulated_root_overscroll_; | 3553 scroll_result.accumulated_root_overscroll = accumulated_root_overscroll_; |
3554 scroll_result.unused_scroll_delta = unused_root_delta; | 3554 scroll_result.unused_scroll_delta = unused_root_delta; |
3555 | 3555 scroll_result.scroll_boundary_behavior = |
| 3556 active_tree()->scroll_boundary_behavior(); |
3556 if (scroll_result.did_scroll) { | 3557 if (scroll_result.did_scroll) { |
3557 // Scrolling can change the root scroll offset, so inform the synchronous | 3558 // Scrolling can change the root scroll offset, so inform the synchronous |
3558 // input handler. | 3559 // input handler. |
3559 UpdateRootLayerStateForSynchronousInputHandler(); | 3560 UpdateRootLayerStateForSynchronousInputHandler(); |
3560 } | 3561 } |
3561 | 3562 |
3562 // Update compositor worker mutations which may respond to scrolling. | 3563 // Update compositor worker mutations which may respond to scrolling. |
3563 Mutate(CurrentBeginFrameArgs().frame_time); | 3564 Mutate(CurrentBeginFrameArgs().frame_time); |
3564 | 3565 |
3565 return scroll_result; | 3566 return scroll_result; |
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4444 | 4445 |
4445 void LayerTreeHostImpl::ShowScrollbarsForImplScroll(ElementId element_id) { | 4446 void LayerTreeHostImpl::ShowScrollbarsForImplScroll(ElementId element_id) { |
4446 if (!element_id) | 4447 if (!element_id) |
4447 return; | 4448 return; |
4448 if (ScrollbarAnimationController* animation_controller = | 4449 if (ScrollbarAnimationController* animation_controller = |
4449 ScrollbarAnimationControllerForElementId(element_id)) | 4450 ScrollbarAnimationControllerForElementId(element_id)) |
4450 animation_controller->DidScrollUpdate(); | 4451 animation_controller->DidScrollUpdate(); |
4451 } | 4452 } |
4452 | 4453 |
4453 } // namespace cc | 4454 } // namespace cc |
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