Moving compositor_bindings from webkit to content

webkit/renderer/compositor_bindings/web_layer_impl.cc

-// Copyright 2011 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 "webkit/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 "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"
-#include "webkit/renderer/compositor_bindings/web_animation_impl.h"
-#include "webkit/renderer/compositor_bindings/web_blend_mode.h"
-#include "webkit/renderer/compositor_bindings/web_filter_operations_impl.h"
-#include "webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.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 webkit {
-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::setAnchorPoint(const WebFloatPoint& anchor_point) {
-  layer_->SetAnchorPoint(anchor_point);
-}
-
-WebFloatPoint WebLayerImpl::anchorPoint() const {
-  return layer_->anchor_point();
-}
-
-void WebLayerImpl::setAnchorPointZ(float anchor_point_z) {
-  layer_->SetAnchorPointZ(anchor_point_z);
-}
-
-float WebLayerImpl::anchorPointZ() const { return layer_->anchor_point_z(); }
-
-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);
-}
-
-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_->SetIs3dSorted(context != 0);
-}
-
-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 webkit