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| 1 // Copyright 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "cc/input/scrollbar_animation_controller_linear_fade.h" | |
| 6 | |
| 7 #include "base/memory/ptr_util.h" | |
| 8 #include "base/time/time.h" | |
| 9 #include "cc/layers/layer_impl.h" | |
| 10 #include "cc/layers/scrollbar_layer_impl_base.h" | |
| 11 #include "cc/trees/layer_tree_impl.h" | |
| 12 | |
| 13 namespace cc { | |
| 14 | |
| 15 std::unique_ptr<ScrollbarAnimationControllerLinearFade> | |
| 16 ScrollbarAnimationControllerLinearFade::Create( | |
| 17 int scroll_layer_id, | |
| 18 ScrollbarAnimationControllerClient* client, | |
| 19 base::TimeDelta delay_before_starting, | |
| 20 base::TimeDelta resize_delay_before_starting, | |
| 21 base::TimeDelta duration) { | |
| 22 return base::WrapUnique(new ScrollbarAnimationControllerLinearFade( | |
| 23 scroll_layer_id, client, delay_before_starting, | |
| 24 resize_delay_before_starting, duration)); | |
| 25 } | |
| 26 | |
| 27 ScrollbarAnimationControllerLinearFade::ScrollbarAnimationControllerLinearFade( | |
| 28 int scroll_layer_id, | |
| 29 ScrollbarAnimationControllerClient* client, | |
| 30 base::TimeDelta delay_before_starting, | |
| 31 base::TimeDelta resize_delay_before_starting, | |
| 32 base::TimeDelta duration) | |
| 33 : ScrollbarAnimationController(scroll_layer_id, | |
| 34 client, | |
| 35 delay_before_starting, | |
| 36 resize_delay_before_starting), | |
| 37 duration_(duration) {} | |
| 38 | |
| 39 ScrollbarAnimationControllerLinearFade:: | |
| 40 ~ScrollbarAnimationControllerLinearFade() {} | |
| 41 | |
| 42 void ScrollbarAnimationControllerLinearFade::RunAnimationFrame(float progress) { | |
| 43 ApplyOpacityToScrollbars(1.f - progress); | |
| 44 client_->SetNeedsRedrawForScrollbarAnimation(); | |
| 45 if (progress == 1.f) | |
| 46 StopAnimation(); | |
| 47 } | |
| 48 | |
| 49 const base::TimeDelta& ScrollbarAnimationControllerLinearFade::Duration() { | |
| 50 return duration_; | |
| 51 } | |
| 52 | |
| 53 void ScrollbarAnimationControllerLinearFade::DidScrollUpdate(bool on_resize) { | |
| 54 ScrollbarAnimationController::DidScrollUpdate(on_resize); | |
| 55 ApplyOpacityToScrollbars(1.f); | |
| 56 } | |
| 57 | |
| 58 void ScrollbarAnimationControllerLinearFade::ApplyOpacityToScrollbars( | |
| 59 float opacity) { | |
| 60 for (ScrollbarLayerImplBase* scrollbar : Scrollbars()) { | |
| 61 if (!scrollbar->is_overlay_scrollbar()) | |
| 62 continue; | |
| 63 PropertyTrees* property_trees = | |
| 64 scrollbar->layer_tree_impl()->property_trees(); | |
| 65 // If this method is called during LayerImpl::PushPropertiesTo, we may not | |
| 66 // yet have valid layer_id_to_effect_node_index entries as property trees | |
| 67 // are pushed after layers during activation. We can skip updating opacity | |
| 68 // in that case as we are only registering a scrollbar and because opacity | |
| 69 // will be overwritten anyway when property trees are pushed. | |
| 70 if (property_trees->IsInIdToIndexMap(PropertyTrees::TreeType::EFFECT, | |
| 71 scrollbar->id())) { | |
| 72 property_trees->effect_tree.OnOpacityAnimated( | |
| 73 scrollbar->CanScrollOrientation() ? opacity : 0, | |
| 74 property_trees->layer_id_to_effect_node_index[scrollbar->id()], | |
| 75 scrollbar->layer_tree_impl()); | |
| 76 } | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 } // namespace cc | |
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Chromium Code Reviews
Issue 2692243005:
Merge Compositor's ScrollbarAnimationControllers into single class (Closed)
