| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/blink/web_compositor_mutable_state_impl.h" |
| |
| #include "cc/animation/layer_tree_mutation.h" |
| #include "cc/layers/layer_impl.h" |
| #include "cc/trees/layer_tree_impl.h" |
| |
| namespace cc_blink { |
| |
| WebCompositorMutableStateImpl::WebCompositorMutableStateImpl( |
| cc::LayerTreeMutation* mutation, |
| cc::LayerImpl* main_layer, |
| cc::LayerImpl* scroll_layer) |
| : mutation_(mutation), |
| main_layer_(main_layer), |
| scroll_layer_(scroll_layer) {} |
| |
| WebCompositorMutableStateImpl::~WebCompositorMutableStateImpl() {} |
| |
| double WebCompositorMutableStateImpl::opacity() const { |
| return main_layer_->opacity(); |
| } |
| |
| void WebCompositorMutableStateImpl::setOpacity(double opacity) { |
| if (!main_layer_) |
| return; |
| main_layer_->OnOpacityAnimated(opacity); |
| mutation_->SetOpacity(opacity); |
| } |
| |
| const SkMatrix44& WebCompositorMutableStateImpl::transform() const { |
| static SkMatrix44 identity; |
| return main_layer_ ? main_layer_->transform().matrix() : identity; |
| } |
| |
| void WebCompositorMutableStateImpl::setTransform(const SkMatrix44& matrix) { |
| if (!main_layer_) |
| return; |
| main_layer_->OnTransformAnimated(gfx::Transform(matrix)); |
| mutation_->SetTransform(matrix); |
| } |
| |
| double WebCompositorMutableStateImpl::scrollLeft() const { |
| return scroll_layer_ ? scroll_layer_->CurrentScrollOffset().x() : 0.0; |
| } |
| |
| void WebCompositorMutableStateImpl::setScrollLeft(double scroll_left) { |
| if (!scroll_layer_) |
| return; |
| gfx::ScrollOffset offset = scroll_layer_->CurrentScrollOffset(); |
| offset.set_x(scroll_left); |
| scroll_layer_->OnScrollOffsetAnimated(offset); |
| mutation_->SetScrollLeft(scroll_left); |
| } |
| |
| double WebCompositorMutableStateImpl::scrollTop() const { |
| return scroll_layer_ ? scroll_layer_->CurrentScrollOffset().y() : 0.0; |
| } |
| |
| void WebCompositorMutableStateImpl::setScrollTop(double scroll_top) { |
| if (!scroll_layer_) |
| return; |
| gfx::ScrollOffset offset = scroll_layer_->CurrentScrollOffset(); |
| offset.set_y(scroll_top); |
| scroll_layer_->OnScrollOffsetAnimated(offset); |
| mutation_->SetScrollTop(scroll_top); |
| } |
| |
| } // namespace cc_blink |