1 files changed, 489 insertions, 0 deletions
diff --git a/chromium/content/renderer/compositor_bindings/web_layer_impl.cc b/chromium/content/renderer/compositor_bindings/web_layer_impl.cc
new file mode 100644
index 00000000000..1dde06b2278
--- /dev/null
+++ b/chromium/content/renderer/compositor_bindings/web_layer_impl.cc
@@ -0,0 +1,489 @@
+// Copyright 2014 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 "content/renderer/compositor_bindings/web_layer_impl.h"
+
+#include "base/bind.h"
+#include "base/debug/trace_event_impl.h"
+#include "base/lazy_instance.h"
+#include "base/strings/string_util.h"
+#include "base/threading/thread_checker.h"
+#include "cc/animation/animation.h"
+#include "cc/base/region.h"
+#include "cc/base/switches.h"
+#include "cc/layers/layer.h"
+#include "cc/layers/layer_position_constraint.h"
+#include "cc/trees/layer_tree_host.h"
+#include "content/renderer/compositor_bindings/web_animation_impl.h"
+#include "content/renderer/compositor_bindings/web_blend_mode.h"
+#include "content/renderer/compositor_bindings/web_filter_operations_impl.h"
+#include "content/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.h"
+#include "third_party/WebKit/public/platform/WebFloatPoint.h"
+#include "third_party/WebKit/public/platform/WebFloatRect.h"
+#include "third_party/WebKit/public/platform/WebGraphicsLayerDebugInfo.h"
+#include "third_party/WebKit/public/platform/WebLayerClient.h"
+#include "third_party/WebKit/public/platform/WebLayerPositionConstraint.h"
+#include "third_party/WebKit/public/platform/WebLayerScrollClient.h"
+#include "third_party/WebKit/public/platform/WebSize.h"
+#include "third_party/skia/include/utils/SkMatrix44.h"
+
+using cc::Animation;
+using cc::Layer;
+using blink::WebLayer;
+using blink::WebFloatPoint;
+using blink::WebVector;
+using blink::WebRect;
+using blink::WebSize;
+using blink::WebColor;
+using blink::WebFilterOperations;
+
+namespace content {
+namespace {
+
+bool g_impl_side_painting_enabled = false;
+
+}  // namespace
+
+WebLayerImpl::WebLayerImpl() : layer_(Layer::Create()) {
+  web_layer_client_ = NULL;
+  layer_->SetLayerClient(this);
+}
+
+WebLayerImpl::WebLayerImpl(scoped_refptr<Layer> layer) : layer_(layer) {
+  web_layer_client_ = NULL;
+  layer_->SetLayerClient(this);
+}
+
+WebLayerImpl::~WebLayerImpl() {
+  layer_->ClearRenderSurface();
+  layer_->set_layer_animation_delegate(NULL);
+  web_layer_client_ = NULL;
+}
+
+// static
+bool WebLayerImpl::UsingPictureLayer() {
+  return g_impl_side_painting_enabled;
+}
+
+// static
+void WebLayerImpl::SetImplSidePaintingEnabled(bool enabled) {
+  g_impl_side_painting_enabled = enabled;
+}
+
+int WebLayerImpl::id() const {
+  return layer_->id();
+}
+
+void WebLayerImpl::invalidateRect(const blink::WebFloatRect& rect) {
+  layer_->SetNeedsDisplayRect(rect);
+}
+
+void WebLayerImpl::invalidate() {
+  layer_->SetNeedsDisplay();
+}
+
+void WebLayerImpl::addChild(WebLayer* child) {
+  layer_->AddChild(static_cast<WebLayerImpl*>(child)->layer());
+}
+
+void WebLayerImpl::insertChild(WebLayer* child, size_t index) {
+  layer_->InsertChild(static_cast<WebLayerImpl*>(child)->layer(), index);
+}
+
+void WebLayerImpl::replaceChild(WebLayer* reference, WebLayer* new_layer) {
+  layer_->ReplaceChild(static_cast<WebLayerImpl*>(reference)->layer(),
+                       static_cast<WebLayerImpl*>(new_layer)->layer());
+}
+
+void WebLayerImpl::removeFromParent() {
+  layer_->RemoveFromParent();
+}
+
+void WebLayerImpl::removeAllChildren() {
+  layer_->RemoveAllChildren();
+}
+
+void WebLayerImpl::setBounds(const WebSize& size) { layer_->SetBounds(size); }
+
+WebSize WebLayerImpl::bounds() const {
+  return layer_->bounds();
+}
+
+void WebLayerImpl::setMasksToBounds(bool masks_to_bounds) {
+  layer_->SetMasksToBounds(masks_to_bounds);
+}
+
+bool WebLayerImpl::masksToBounds() const {
+  return layer_->masks_to_bounds();
+}
+
+void WebLayerImpl::setMaskLayer(WebLayer* maskLayer) {
+  layer_->SetMaskLayer(
+      maskLayer ? static_cast<WebLayerImpl*>(maskLayer)->layer() : 0);
+}
+
+void WebLayerImpl::setReplicaLayer(WebLayer* replica_layer) {
+  layer_->SetReplicaLayer(
+      replica_layer ? static_cast<WebLayerImpl*>(replica_layer)->layer() : 0);
+}
+
+void WebLayerImpl::setOpacity(float opacity) {
+  layer_->SetOpacity(opacity);
+}
+
+float WebLayerImpl::opacity() const {
+  return layer_->opacity();
+}
+
+void WebLayerImpl::setBlendMode(blink::WebBlendMode blend_mode) {
+  layer_->SetBlendMode(BlendModeToSkia(blend_mode));
+}
+
+blink::WebBlendMode WebLayerImpl::blendMode() const {
+  return BlendModeFromSkia(layer_->blend_mode());
+}
+
+void WebLayerImpl::setIsRootForIsolatedGroup(bool isolate) {
+  layer_->SetIsRootForIsolatedGroup(isolate);
+}
+
+bool WebLayerImpl::isRootForIsolatedGroup() {
+  return layer_->is_root_for_isolated_group();
+}
+
+void WebLayerImpl::setOpaque(bool opaque) {
+  layer_->SetContentsOpaque(opaque);
+}
+
+bool WebLayerImpl::opaque() const {
+  return layer_->contents_opaque();
+}
+
+void WebLayerImpl::setPosition(const WebFloatPoint& position) {
+  layer_->SetPosition(position);
+}
+
+WebFloatPoint WebLayerImpl::position() const {
+  return layer_->position();
+}
+
+void WebLayerImpl::setTransform(const SkMatrix44& matrix) {
+  gfx::Transform transform;
+  transform.matrix() = matrix;
+  layer_->SetTransform(transform);
+}
+
+void WebLayerImpl::setTransformOrigin(const blink::WebFloatPoint3D& point) {
+  gfx::Point3F gfx_point = point;
+  layer_->SetTransformOrigin(gfx_point);
+}
+
+blink::WebFloatPoint3D WebLayerImpl::transformOrigin() const {
+  return layer_->transform_origin();
+}
+
+void WebLayerImpl::setAnchorPoint(const blink::WebFloatPoint&) {}
+
+blink::WebFloatPoint WebLayerImpl::anchorPoint() const {
+  return blink::WebFloatPoint();
+}
+
+void WebLayerImpl::setAnchorPointZ(float) {}
+
+float WebLayerImpl::anchorPointZ() const {
+  return 0.f;
+};
+
+SkMatrix44 WebLayerImpl::transform() const {
+  return layer_->transform().matrix();
+}
+
+void WebLayerImpl::setDrawsContent(bool draws_content) {
+  layer_->SetIsDrawable(draws_content);
+}
+
+bool WebLayerImpl::drawsContent() const {
+  return layer_->DrawsContent();
+}
+
+void WebLayerImpl::setShouldFlattenTransform(bool flatten) {
+  layer_->SetShouldFlattenTransform(flatten);
+}
+
+void WebLayerImpl::setRenderingContext(int context) {
+  layer_->Set3dSortingContextId(context);
+}
+
+void WebLayerImpl::setUseParentBackfaceVisibility(
+    bool use_parent_backface_visibility) {
+  layer_->set_use_parent_backface_visibility(use_parent_backface_visibility);
+}
+
+void WebLayerImpl::setBackgroundColor(WebColor color) {
+  layer_->SetBackgroundColor(color);
+}
+
+WebColor WebLayerImpl::backgroundColor() const {
+  return layer_->background_color();
+}
+
+void WebLayerImpl::setFilters(const WebFilterOperations& filters) {
+  const WebFilterOperationsImpl& filters_impl =
+      static_cast<const WebFilterOperationsImpl&>(filters);
+  layer_->SetFilters(filters_impl.AsFilterOperations());
+}
+
+void WebLayerImpl::setBackgroundFilters(const WebFilterOperations& filters) {
+  const WebFilterOperationsImpl& filters_impl =
+      static_cast<const WebFilterOperationsImpl&>(filters);
+  layer_->SetBackgroundFilters(filters_impl.AsFilterOperations());
+}
+
+void WebLayerImpl::setAnimationDelegate(blink::WebAnimationDelegate* delegate) {
+  animation_delegate_adapter_.reset(
+      new WebToCCAnimationDelegateAdapter(delegate));
+  layer_->set_layer_animation_delegate(animation_delegate_adapter_.get());
+}
+
+bool WebLayerImpl::addAnimation(blink::WebAnimation* animation) {
+  bool result = layer_->AddAnimation(
+      static_cast<WebAnimationImpl*>(animation)->PassAnimation());
+  delete animation;
+  return result;
+}
+
+void WebLayerImpl::removeAnimation(int animation_id) {
+  layer_->RemoveAnimation(animation_id);
+}
+
+void WebLayerImpl::removeAnimation(
+    int animation_id,
+    blink::WebAnimation::TargetProperty target_property) {
+  layer_->layer_animation_controller()->RemoveAnimation(
+      animation_id, static_cast<Animation::TargetProperty>(target_property));
+}
+
+void WebLayerImpl::pauseAnimation(int animation_id, double time_offset) {
+  layer_->PauseAnimation(animation_id, time_offset);
+}
+
+bool WebLayerImpl::hasActiveAnimation() {
+  return layer_->HasActiveAnimation();
+}
+
+void WebLayerImpl::setForceRenderSurface(bool force_render_surface) {
+  layer_->SetForceRenderSurface(force_render_surface);
+}
+
+void WebLayerImpl::setScrollPosition(blink::WebPoint position) {
+  layer_->SetScrollOffset(gfx::Point(position).OffsetFromOrigin());
+}
+
+blink::WebPoint WebLayerImpl::scrollPosition() const {
+  return gfx::PointAtOffsetFromOrigin(layer_->scroll_offset());
+}
+
+void WebLayerImpl::setScrollClipLayer(WebLayer* clip_layer) {
+  if (!clip_layer) {
+    layer_->SetScrollClipLayerId(Layer::INVALID_ID);
+    return;
+  }
+  layer_->SetScrollClipLayerId(clip_layer->id());
+}
+
+bool WebLayerImpl::scrollable() const {
+  return layer_->scrollable();
+}
+
+void WebLayerImpl::setUserScrollable(bool horizontal, bool vertical) {
+  layer_->SetUserScrollable(horizontal, vertical);
+}
+
+bool WebLayerImpl::userScrollableHorizontal() const {
+  return layer_->user_scrollable_horizontal();
+}
+
+bool WebLayerImpl::userScrollableVertical() const {
+  return layer_->user_scrollable_vertical();
+}
+
+void WebLayerImpl::setHaveWheelEventHandlers(bool have_wheel_event_handlers) {
+  layer_->SetHaveWheelEventHandlers(have_wheel_event_handlers);
+}
+
+bool WebLayerImpl::haveWheelEventHandlers() const {
+  return layer_->have_wheel_event_handlers();
+}
+
+void WebLayerImpl::setHaveScrollEventHandlers(bool have_scroll_event_handlers) {
+  layer_->SetHaveScrollEventHandlers(have_scroll_event_handlers);
+}
+
+bool WebLayerImpl::haveScrollEventHandlers() const {
+  return layer_->have_scroll_event_handlers();
+}
+
+void WebLayerImpl::setShouldScrollOnMainThread(
+    bool should_scroll_on_main_thread) {
+  layer_->SetShouldScrollOnMainThread(should_scroll_on_main_thread);
+}
+
+bool WebLayerImpl::shouldScrollOnMainThread() const {
+  return layer_->should_scroll_on_main_thread();
+}
+
+void WebLayerImpl::setNonFastScrollableRegion(const WebVector<WebRect>& rects) {
+  cc::Region region;
+  for (size_t i = 0; i < rects.size(); ++i)
+    region.Union(rects[i]);
+  layer_->SetNonFastScrollableRegion(region);
+}
+
+WebVector<WebRect> WebLayerImpl::nonFastScrollableRegion() const {
+  size_t num_rects = 0;
+  for (cc::Region::Iterator region_rects(layer_->non_fast_scrollable_region());
+       region_rects.has_rect();
+       region_rects.next())
+    ++num_rects;
+
+  WebVector<WebRect> result(num_rects);
+  size_t i = 0;
+  for (cc::Region::Iterator region_rects(layer_->non_fast_scrollable_region());
+       region_rects.has_rect();
+       region_rects.next()) {
+    result[i] = region_rects.rect();
+    ++i;
+  }
+  return result;
+}
+
+void WebLayerImpl::setTouchEventHandlerRegion(const WebVector<WebRect>& rects) {
+  cc::Region region;
+  for (size_t i = 0; i < rects.size(); ++i)
+    region.Union(rects[i]);
+  layer_->SetTouchEventHandlerRegion(region);
+}
+
+WebVector<WebRect> WebLayerImpl::touchEventHandlerRegion() const {
+  size_t num_rects = 0;
+  for (cc::Region::Iterator region_rects(layer_->touch_event_handler_region());
+       region_rects.has_rect();
+       region_rects.next())
+    ++num_rects;
+
+  WebVector<WebRect> result(num_rects);
+  size_t i = 0;
+  for (cc::Region::Iterator region_rects(layer_->touch_event_handler_region());
+       region_rects.has_rect();
+       region_rects.next()) {
+    result[i] = region_rects.rect();
+    ++i;
+  }
+  return result;
+}
+
+void WebLayerImpl::setIsContainerForFixedPositionLayers(bool enable) {
+  layer_->SetIsContainerForFixedPositionLayers(enable);
+}
+
+bool WebLayerImpl::isContainerForFixedPositionLayers() const {
+  return layer_->IsContainerForFixedPositionLayers();
+}
+
+static blink::WebLayerPositionConstraint ToWebLayerPositionConstraint(
+    const cc::LayerPositionConstraint& constraint) {
+  blink::WebLayerPositionConstraint web_constraint;
+  web_constraint.isFixedPosition = constraint.is_fixed_position();
+  web_constraint.isFixedToRightEdge = constraint.is_fixed_to_right_edge();
+  web_constraint.isFixedToBottomEdge = constraint.is_fixed_to_bottom_edge();
+  return web_constraint;
+}
+
+static cc::LayerPositionConstraint ToLayerPositionConstraint(
+    const blink::WebLayerPositionConstraint& web_constraint) {
+  cc::LayerPositionConstraint constraint;
+  constraint.set_is_fixed_position(web_constraint.isFixedPosition);
+  constraint.set_is_fixed_to_right_edge(web_constraint.isFixedToRightEdge);
+  constraint.set_is_fixed_to_bottom_edge(web_constraint.isFixedToBottomEdge);
+  return constraint;
+}
+
+void WebLayerImpl::setPositionConstraint(
+    const blink::WebLayerPositionConstraint& constraint) {
+  layer_->SetPositionConstraint(ToLayerPositionConstraint(constraint));
+}
+
+blink::WebLayerPositionConstraint WebLayerImpl::positionConstraint() const {
+  return ToWebLayerPositionConstraint(layer_->position_constraint());
+}
+
+void WebLayerImpl::setScrollClient(blink::WebLayerScrollClient* scroll_client) {
+  if (scroll_client) {
+    layer_->set_did_scroll_callback(
+        base::Bind(&blink::WebLayerScrollClient::didScroll,
+                   base::Unretained(scroll_client)));
+  } else {
+    layer_->set_did_scroll_callback(base::Closure());
+  }
+}
+
+bool WebLayerImpl::isOrphan() const {
+  return !layer_->layer_tree_host();
+}
+
+void WebLayerImpl::setWebLayerClient(blink::WebLayerClient* client) {
+  web_layer_client_ = client;
+}
+
+class TracedDebugInfo : public base::debug::ConvertableToTraceFormat {
+ public:
+  // This object takes ownership of the debug_info object.
+  explicit TracedDebugInfo(blink::WebGraphicsLayerDebugInfo* debug_info)
+      : debug_info_(debug_info) {}
+  virtual void AppendAsTraceFormat(std::string* out) const OVERRIDE {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    blink::WebString web_string;
+    debug_info_->appendAsTraceFormat(&web_string);
+    out->append(web_string.utf8());
+  }
+
+ private:
+  virtual ~TracedDebugInfo() {}
+  scoped_ptr<blink::WebGraphicsLayerDebugInfo> debug_info_;
+  base::ThreadChecker thread_checker_;
+};
+
+scoped_refptr<base::debug::ConvertableToTraceFormat>
+WebLayerImpl::TakeDebugInfo() {
+  if (!web_layer_client_)
+    return NULL;
+  blink::WebGraphicsLayerDebugInfo* debug_info =
+      web_layer_client_->takeDebugInfoFor(this);
+
+  if (debug_info)
+    return new TracedDebugInfo(debug_info);
+  else
+    return NULL;
+}
+
+void WebLayerImpl::setScrollParent(blink::WebLayer* parent) {
+  cc::Layer* scroll_parent = NULL;
+  if (parent)
+    scroll_parent = static_cast<WebLayerImpl*>(parent)->layer();
+  layer_->SetScrollParent(scroll_parent);
+}
+
+void WebLayerImpl::setClipParent(blink::WebLayer* parent) {
+  cc::Layer* clip_parent = NULL;
+  if (parent)
+    clip_parent = static_cast<WebLayerImpl*>(parent)->layer();
+  layer_->SetClipParent(clip_parent);
+}
+
+Layer* WebLayerImpl::layer() const {
+  return layer_.get();
+}
+
+}  // namespace content
+