Index: cc/blink/web_mutable_state_impl.cc |
diff --git a/cc/blink/web_mutable_state_impl.cc b/cc/blink/web_mutable_state_impl.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..7104ee703ac6e42e26628a68cd1698f128f58a8c |
--- /dev/null |
+++ b/cc/blink/web_mutable_state_impl.cc |
@@ -0,0 +1,89 @@ |
+// 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_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 { |
+ |
+WebMutableStateImpl::WebMutableStateImpl(cc::LayerTreeMutation* mutation, |
+ cc::LayerImpl* main_layer, |
+ cc::LayerImpl* scroll_layer) |
+ : mutation_(mutation), |
+ main_layer_(main_layer), |
+ scroll_layer_(scroll_layer) {} |
+ |
+WebMutableStateImpl::~WebMutableStateImpl() {} |
+ |
+double WebMutableStateImpl::getOpacity() const { |
+ return main_layer_->opacity(); |
+} |
+ |
+void WebMutableStateImpl::setOpacity(double opacity) { |
+ if (!main_layer_) |
+ return; |
+ main_layer_->OnOpacityAnimated(opacity); |
+ mutation_->SetOpacity(opacity); |
+} |
+ |
+const SkMatrix44& WebMutableStateImpl::getTransform() const { |
+ static SkMatrix44 identity; |
+ return main_layer_ ? main_layer_->transform().matrix() : identity; |
+} |
+ |
+void WebMutableStateImpl::setTransform(const SkMatrix44& matrix) { |
+ if (!main_layer_) |
+ return; |
+ main_layer_->OnTransformAnimated(gfx::Transform(matrix)); |
+ mutation_->SetTransform(matrix); |
+} |
+ |
+double WebMutableStateImpl::getScrollLeft() const { |
+ return scroll_layer_ ? scroll_layer_->CurrentScrollOffset().x() : 0.0; |
+} |
+ |
+void WebMutableStateImpl::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 WebMutableStateImpl::getScrollTop() const { |
+ return scroll_layer_ ? scroll_layer_->CurrentScrollOffset().y() : 0.0; |
+} |
+ |
+void WebMutableStateImpl::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); |
+} |
+ |
+WebMutableStateProviderImpl::WebMutableStateProviderImpl( |
+ cc::LayerTreeImpl* state, |
+ cc::LayerTreeMutationMap* mutations) |
+ : state_(state), mutations_(mutations) {} |
+ |
+WebMutableStateProviderImpl::~WebMutableStateProviderImpl() {} |
+ |
+blink::WebMutableState* WebMutableStateProviderImpl::getMutableStateFor( |
+ uint64_t element_id) { |
+ cc::LayerImpl* main_layer = nullptr; |
+ cc::LayerImpl* scroll_layer = nullptr; |
+ if (!state_->GetMutableLayers(element_id, &main_layer, &scroll_layer)) |
+ return nullptr; |
+ |
+ return new WebMutableStateImpl(&(*mutations_)[element_id], main_layer, |
+ scroll_layer); |
+} |
+ |
+} // namespace cc_blink |