root/webkit/renderer/compositor_bindings/web_layer_impl.cc

DEFINITIONS

1. UsingPictureLayer
2. SetImplSidePaintingEnabled
3. id
4. invalidateRect
5. invalidate
6. addChild
7. insertChild
8. replaceChild
9. removeFromParent
10. removeAllChildren
11. setAnchorPoint
12. anchorPoint
13. setAnchorPointZ
14. anchorPointZ
15. setBounds
16. bounds
17. setMasksToBounds
18. masksToBounds
19. setMaskLayer
20. setReplicaLayer
21. setOpacity
22. opacity
23. setBlendMode
24. blendMode
25. setIsRootForIsolatedGroup
26. isRootForIsolatedGroup
27. setOpaque
28. opaque
29. setPosition
30. position
31. setTransform
32. transform
33. setDrawsContent
34. drawsContent
35. setShouldFlattenTransform
36. setRenderingContext
37. setUseParentBackfaceVisibility
38. setBackgroundColor
39. backgroundColor
40. setFilters
41. setBackgroundFilters
42. setAnimationDelegate
43. addAnimation
44. removeAnimation
45. removeAnimation
46. pauseAnimation
47. hasActiveAnimation
48. setForceRenderSurface
49. setScrollPosition
50. scrollPosition
51. setScrollClipLayer
52. scrollable
53. setUserScrollable
54. userScrollableHorizontal
55. userScrollableVertical
56. setHaveWheelEventHandlers
57. haveWheelEventHandlers
58. setHaveScrollEventHandlers
59. haveScrollEventHandlers
60. setShouldScrollOnMainThread
61. shouldScrollOnMainThread
62. setNonFastScrollableRegion
63. nonFastScrollableRegion
64. setTouchEventHandlerRegion
65. touchEventHandlerRegion
66. setIsContainerForFixedPositionLayers
67. isContainerForFixedPositionLayers
68. ToWebLayerPositionConstraint
69. ToLayerPositionConstraint
70. setPositionConstraint
71. positionConstraint
72. setScrollClient
73. isOrphan
74. setWebLayerClient
75. AppendAsTraceFormat
76. TakeDebugInfo
77. setScrollParent
78. setClipParent
79. layer

// 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