src/webkit/renderer/compositor_bindings/web_layer_impl.cc

   1 // Copyright 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "webkit/renderer/compositor_bindings/web_layer_impl.h"
   6
   7 #include "base/bind.h"
   8 #include "base/debug/trace_event_impl.h"
   9 #include "base/lazy_instance.h"
  10 #include "base/strings/string_util.h"
  11 #include "base/threading/thread_checker.h"
  12 #include "cc/animation/animation.h"
  13 #include "cc/base/region.h"
  14 #include "cc/base/switches.h"
  15 #include "cc/layers/layer.h"
  16 #include "cc/layers/layer_position_constraint.h"
  17 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
  18 #include "third_party/WebKit/public/platform/WebFloatRect.h"
  19 #include "third_party/WebKit/public/platform/WebGraphicsLayerDebugInfo.h"
  20 #include "third_party/WebKit/public/platform/WebLayerClient.h"
  21 #include "third_party/WebKit/public/platform/WebLayerPositionConstraint.h"
  22 #include "third_party/WebKit/public/platform/WebLayerScrollClient.h"
  23 #include "third_party/WebKit/public/platform/WebSize.h"
  24 #include "third_party/skia/include/utils/SkMatrix44.h"
  25 #include "webkit/renderer/compositor_bindings/web_animation_impl.h"
  26 #include "webkit/renderer/compositor_bindings/web_blend_mode.h"
  27 #include "webkit/renderer/compositor_bindings/web_filter_operations_impl.h"
  28 #include "webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.h"
  29
  30 using cc::Animation;
  31 using cc::Layer;
  32 using blink::WebLayer;
  33 using blink::WebFloatPoint;
  34 using blink::WebVector;
  35 using blink::WebRect;
  36 using blink::WebSize;
  37 using blink::WebColor;
  38 using blink::WebFilterOperations;
  39
  40 namespace webkit {
  41 namespace {
  42
  43 struct ImplSidePaintingStatus {
  44   ImplSidePaintingStatus()
  45       : enabled(cc::switches::IsImplSidePaintingEnabled()) {
  46   }
  47   bool enabled;
  48 };
  49 base::LazyInstance<ImplSidePaintingStatus> g_impl_side_painting_status =
  50     LAZY_INSTANCE_INITIALIZER;
  51
  52 }  // namespace
  53
  54 WebLayerImpl::WebLayerImpl() : layer_(Layer::Create()) {
  55   web_layer_client_ = NULL;
  56   layer_->SetLayerClient(this);
  57 }
  58
  59 WebLayerImpl::WebLayerImpl(scoped_refptr<Layer> layer) : layer_(layer) {
  60   web_layer_client_ = NULL;
  61   layer_->SetLayerClient(this);
  62 }
  63
  64 WebLayerImpl::~WebLayerImpl() {
  65   layer_->ClearRenderSurface();
  66   layer_->set_layer_animation_delegate(NULL);
  67   web_layer_client_ = NULL;
  68 }
  69
  70 // static
  71 bool WebLayerImpl::UsingPictureLayer() {
  72   return g_impl_side_painting_status.Get().enabled;
  73 }
  74
  75 int WebLayerImpl::id() const { return layer_->id(); }
  76
  77 void WebLayerImpl::invalidateRect(const blink::WebFloatRect& rect) {
  78   layer_->SetNeedsDisplayRect(rect);
  79 }
  80
  81 void WebLayerImpl::invalidate() { layer_->SetNeedsDisplay(); }
  82
  83 void WebLayerImpl::addChild(WebLayer* child) {
  84   layer_->AddChild(static_cast<WebLayerImpl*>(child)->layer());
  85 }
  86
  87 void WebLayerImpl::insertChild(WebLayer* child, size_t index) {
  88   layer_->InsertChild(static_cast<WebLayerImpl*>(child)->layer(), index);
  89 }
  90
  91 void WebLayerImpl::replaceChild(WebLayer* reference, WebLayer* new_layer) {
  92   layer_->ReplaceChild(static_cast<WebLayerImpl*>(reference)->layer(),
  93                        static_cast<WebLayerImpl*>(new_layer)->layer());
  94 }
  95
  96 void WebLayerImpl::removeFromParent() { layer_->RemoveFromParent(); }
  97
  98 void WebLayerImpl::removeAllChildren() { layer_->RemoveAllChildren(); }
  99
 100 void WebLayerImpl::setAnchorPoint(const WebFloatPoint& anchor_point) {
 101   layer_->SetAnchorPoint(anchor_point);
 102 }
 103
 104 WebFloatPoint WebLayerImpl::anchorPoint() const {
 105   return layer_->anchor_point();
 106 }
 107
 108 void WebLayerImpl::setAnchorPointZ(float anchor_point_z) {
 109   layer_->SetAnchorPointZ(anchor_point_z);
 110 }
 111
 112 float WebLayerImpl::anchorPointZ() const { return layer_->anchor_point_z(); }
 113
 114 void WebLayerImpl::setBounds(const WebSize& size) { layer_->SetBounds(size); }
 115
 116 WebSize WebLayerImpl::bounds() const { return layer_->bounds(); }
 117
 118 void WebLayerImpl::setMasksToBounds(bool masks_to_bounds) {
 119   layer_->SetMasksToBounds(masks_to_bounds);
 120 }
 121
 122 bool WebLayerImpl::masksToBounds() const { return layer_->masks_to_bounds(); }
 123
 124 void WebLayerImpl::setMaskLayer(WebLayer* maskLayer) {
 125   layer_->SetMaskLayer(
 126       maskLayer ? static_cast<WebLayerImpl*>(maskLayer)->layer() : 0);
 127 }
 128
 129 void WebLayerImpl::setReplicaLayer(WebLayer* replica_layer) {
 130   layer_->SetReplicaLayer(
 131       replica_layer ? static_cast<WebLayerImpl*>(replica_layer)->layer() : 0);
 132 }
 133
 134 void WebLayerImpl::setOpacity(float opacity) { layer_->SetOpacity(opacity); }
 135
 136 float WebLayerImpl::opacity() const { return layer_->opacity(); }
 137
 138 void WebLayerImpl::setBlendMode(blink::WebBlendMode blend_mode) {
 139   layer_->SetBlendMode(BlendModeToSkia(blend_mode));
 140 }
 141
 142 blink::WebBlendMode WebLayerImpl::blendMode() const {
 143   return BlendModeFromSkia(layer_->blend_mode());
 144 }
 145
 146 void WebLayerImpl::setIsRootForIsolatedGroup(bool isolate) {
 147   layer_->SetIsRootForIsolatedGroup(isolate);
 148 }
 149
 150 bool WebLayerImpl::isRootForIsolatedGroup() {
 151   return layer_->is_root_for_isolated_group();
 152 }
 153
 154 void WebLayerImpl::setOpaque(bool opaque) { layer_->SetContentsOpaque(opaque); }
 155
 156 bool WebLayerImpl::opaque() const { return layer_->contents_opaque(); }
 157
 158 void WebLayerImpl::setPosition(const WebFloatPoint& position) {
 159   layer_->SetPosition(position);
 160 }
 161
 162 WebFloatPoint WebLayerImpl::position() const { return layer_->position(); }
 163
 164 void WebLayerImpl::setSublayerTransform(const SkMatrix44& matrix) {
 165   gfx::Transform sub_layer_transform;
 166   sub_layer_transform.matrix() = matrix;
 167   layer_->SetSublayerTransform(sub_layer_transform);
 168 }
 169
 170 SkMatrix44 WebLayerImpl::sublayerTransform() const {
 171   return layer_->sublayer_transform().matrix();
 172 }
 173
 174 void WebLayerImpl::setTransform(const SkMatrix44& matrix) {
 175   gfx::Transform transform;
 176   transform.matrix() = matrix;
 177   layer_->SetTransform(transform);
 178 }
 179
 180 SkMatrix44 WebLayerImpl::transform() const {
 181   return layer_->transform().matrix();
 182 }
 183
 184 void WebLayerImpl::setDrawsContent(bool draws_content) {
 185   layer_->SetIsDrawable(draws_content);
 186 }
 187
 188 bool WebLayerImpl::drawsContent() const { return layer_->DrawsContent(); }
 189
 190 void WebLayerImpl::setPreserves3D(bool preserve3D) {
 191   layer_->SetPreserves3d(preserve3D);
 192 }
 193
 194 void WebLayerImpl::setUseParentBackfaceVisibility(
 195     bool use_parent_backface_visibility) {
 196   layer_->set_use_parent_backface_visibility(use_parent_backface_visibility);
 197 }
 198
 199 void WebLayerImpl::setBackgroundColor(WebColor color) {
 200   layer_->SetBackgroundColor(color);
 201 }
 202
 203 WebColor WebLayerImpl::backgroundColor() const {
 204   return layer_->background_color();
 205 }
 206
 207 void WebLayerImpl::setFilters(const WebFilterOperations& filters) {
 208   const WebFilterOperationsImpl& filters_impl =
 209       static_cast<const WebFilterOperationsImpl&>(filters);
 210   layer_->SetFilters(filters_impl.AsFilterOperations());
 211 }
 212
 213 void WebLayerImpl::setBackgroundFilters(const WebFilterOperations& filters) {
 214   const WebFilterOperationsImpl& filters_impl =
 215       static_cast<const WebFilterOperationsImpl&>(filters);
 216   layer_->SetBackgroundFilters(filters_impl.AsFilterOperations());
 217 }
 218
 219 void WebLayerImpl::setAnimationDelegate(
 220       blink::WebAnimationDelegate* delegate) {
 221   animation_delegate_adapter_.reset(
 222       new WebToCCAnimationDelegateAdapter(delegate));
 223   layer_->set_layer_animation_delegate(animation_delegate_adapter_.get());
 224 }
 225
 226 bool WebLayerImpl::addAnimation(blink::WebAnimation* animation) {
 227   bool result = layer_->AddAnimation(
 228       static_cast<WebAnimationImpl*>(animation)->PassAnimation());
 229   delete animation;
 230   return result;
 231 }
 232
 233 void WebLayerImpl::removeAnimation(int animation_id) {
 234   layer_->RemoveAnimation(animation_id);
 235 }
 236
 237 void WebLayerImpl::removeAnimation(
 238     int animation_id,
 239     blink::WebAnimation::TargetProperty target_property) {
 240   layer_->layer_animation_controller()->RemoveAnimation(
 241       animation_id,
 242       static_cast<Animation::TargetProperty>(target_property));
 243 }
 244
 245 void WebLayerImpl::pauseAnimation(int animation_id, double time_offset) {
 246   layer_->PauseAnimation(animation_id, time_offset);
 247 }
 248
 249 bool WebLayerImpl::hasActiveAnimation() { return layer_->HasActiveAnimation(); }
 250
 251 void WebLayerImpl::setForceRenderSurface(bool force_render_surface) {
 252   layer_->SetForceRenderSurface(force_render_surface);
 253 }
 254
 255 void WebLayerImpl::setScrollPosition(blink::WebPoint position) {
 256   layer_->SetScrollOffset(gfx::Point(position).OffsetFromOrigin());
 257 }
 258
 259 blink::WebPoint WebLayerImpl::scrollPosition() const {
 260   return gfx::PointAtOffsetFromOrigin(layer_->scroll_offset());
 261 }
 262
 263 void WebLayerImpl::setMaxScrollPosition(WebSize max_scroll_position) {
 264   layer_->SetMaxScrollOffset(max_scroll_position);
 265 }
 266
 267 WebSize WebLayerImpl::maxScrollPosition() const {
 268   return layer_->max_scroll_offset();
 269 }
 270
 271 void WebLayerImpl::setScrollable(bool scrollable) {
 272   layer_->SetScrollable(scrollable);
 273 }
 274
 275 bool WebLayerImpl::scrollable() const { return layer_->scrollable(); }
 276
 277 void WebLayerImpl::setUserScrollable(bool horizontal, bool vertical) {
 278   layer_->SetUserScrollable(horizontal, vertical);
 279 }
 280
 281 bool WebLayerImpl::userScrollableHorizontal() const {
 282   return layer_->user_scrollable_horizontal();
 283 }
 284
 285 bool WebLayerImpl::userScrollableVertical() const {
 286   return layer_->user_scrollable_vertical();
 287 }
 288
 289 void WebLayerImpl::setHaveWheelEventHandlers(bool have_wheel_event_handlers) {
 290   layer_->SetHaveWheelEventHandlers(have_wheel_event_handlers);
 291 }
 292
 293 bool WebLayerImpl::haveWheelEventHandlers() const {
 294   return layer_->have_wheel_event_handlers();
 295 }
 296
 297 void WebLayerImpl::setShouldScrollOnMainThread(
 298     bool should_scroll_on_main_thread) {
 299   layer_->SetShouldScrollOnMainThread(should_scroll_on_main_thread);
 300 }
 301
 302 bool WebLayerImpl::shouldScrollOnMainThread() const {
 303   return layer_->should_scroll_on_main_thread();
 304 }
 305
 306 void WebLayerImpl::setNonFastScrollableRegion(const WebVector<WebRect>& rects) {
 307   cc::Region region;
 308   for (size_t i = 0; i < rects.size(); ++i)
 309     region.Union(rects[i]);
 310   layer_->SetNonFastScrollableRegion(region);
 311 }
 312
 313 WebVector<WebRect> WebLayerImpl::nonFastScrollableRegion() const {
 314   size_t num_rects = 0;
 315   for (cc::Region::Iterator region_rects(layer_->non_fast_scrollable_region());
 316        region_rects.has_rect();
 317        region_rects.next())
 318     ++num_rects;
 319
 320   WebVector<WebRect> result(num_rects);
 321   size_t i = 0;
 322   for (cc::Region::Iterator region_rects(layer_->non_fast_scrollable_region());
 323        region_rects.has_rect();
 324        region_rects.next()) {
 325     result[i] = region_rects.rect();
 326     ++i;
 327   }
 328   return result;
 329 }
 330
 331 void WebLayerImpl::setTouchEventHandlerRegion(const WebVector<WebRect>& rects) {
 332   cc::Region region;
 333   for (size_t i = 0; i < rects.size(); ++i)
 334     region.Union(rects[i]);
 335   layer_->SetTouchEventHandlerRegion(region);
 336 }
 337
 338 WebVector<WebRect> WebLayerImpl::touchEventHandlerRegion() const {
 339   size_t num_rects = 0;
 340   for (cc::Region::Iterator region_rects(layer_->touch_event_handler_region());
 341        region_rects.has_rect();
 342        region_rects.next())
 343     ++num_rects;
 344
 345   WebVector<WebRect> result(num_rects);
 346   size_t i = 0;
 347   for (cc::Region::Iterator region_rects(layer_->touch_event_handler_region());
 348        region_rects.has_rect();
 349        region_rects.next()) {
 350     result[i] = region_rects.rect();
 351     ++i;
 352   }
 353   return result;
 354 }
 355
 356 void WebLayerImpl::setIsContainerForFixedPositionLayers(bool enable) {
 357   layer_->SetIsContainerForFixedPositionLayers(enable);
 358 }
 359
 360 bool WebLayerImpl::isContainerForFixedPositionLayers() const {
 361   return layer_->IsContainerForFixedPositionLayers();
 362 }
 363
 364 static blink::WebLayerPositionConstraint ToWebLayerPositionConstraint(
 365     const cc::LayerPositionConstraint& constraint) {
 366   blink::WebLayerPositionConstraint web_constraint;
 367   web_constraint.isFixedPosition = constraint.is_fixed_position();
 368   web_constraint.isFixedToRightEdge = constraint.is_fixed_to_right_edge();
 369   web_constraint.isFixedToBottomEdge = constraint.is_fixed_to_bottom_edge();
 370   return web_constraint;
 371 }
 372
 373 static cc::LayerPositionConstraint ToLayerPositionConstraint(
 374     const blink::WebLayerPositionConstraint& web_constraint) {
 375   cc::LayerPositionConstraint constraint;
 376   constraint.set_is_fixed_position(web_constraint.isFixedPosition);
 377   constraint.set_is_fixed_to_right_edge(web_constraint.isFixedToRightEdge);
 378   constraint.set_is_fixed_to_bottom_edge(web_constraint.isFixedToBottomEdge);
 379   return constraint;
 380 }
 381
 382 void WebLayerImpl::setPositionConstraint(
 383     const blink::WebLayerPositionConstraint& constraint) {
 384   layer_->SetPositionConstraint(ToLayerPositionConstraint(constraint));
 385 }
 386
 387 blink::WebLayerPositionConstraint WebLayerImpl::positionConstraint() const {
 388   return ToWebLayerPositionConstraint(layer_->position_constraint());
 389 }
 390
 391 void WebLayerImpl::setScrollClient(
 392     blink::WebLayerScrollClient* scroll_client) {
 393   if (scroll_client) {
 394     layer_->set_did_scroll_callback(
 395         base::Bind(&blink::WebLayerScrollClient::didScroll,
 396                    base::Unretained(scroll_client)));
 397   } else {
 398     layer_->set_did_scroll_callback(base::Closure());
 399   }
 400 }
 401
 402 bool WebLayerImpl::isOrphan() const { return !layer_->layer_tree_host(); }
 403
 404 void WebLayerImpl::setWebLayerClient(blink::WebLayerClient* client) {
 405   web_layer_client_ = client;
 406 }
 407
 408 class TracedDebugInfo : public base::debug::ConvertableToTraceFormat {
 409  public:
 410   // This object takes ownership of the debug_info object.
 411   explicit TracedDebugInfo(blink::WebGraphicsLayerDebugInfo* debug_info) :
 412     debug_info_(debug_info) {}
 413   virtual void AppendAsTraceFormat(std::string* out) const OVERRIDE {
 414     DCHECK(thread_checker_.CalledOnValidThread());
 415     blink::WebString web_string;
 416     debug_info_->appendAsTraceFormat(&web_string);
 417     out->append(web_string.utf8());
 418   }
 419  private:
 420   virtual ~TracedDebugInfo() {}
 421   scoped_ptr<blink::WebGraphicsLayerDebugInfo> debug_info_;
 422   base::ThreadChecker thread_checker_;
 423 };
 424
 425 scoped_refptr<base::debug::ConvertableToTraceFormat>
 426     WebLayerImpl::TakeDebugInfo() {
 427   if (!web_layer_client_)
 428     return NULL;
 429   blink::WebGraphicsLayerDebugInfo* debug_info =
 430       web_layer_client_->takeDebugInfoFor(this);
 431
 432   if (debug_info)
 433     return new TracedDebugInfo(debug_info);
 434   else
 435     return NULL;
 436 }
 437
 438 void WebLayerImpl::setScrollParent(blink::WebLayer* parent) {
 439   cc::Layer* scroll_parent = NULL;
 440   if (parent)
 441     scroll_parent = static_cast<WebLayerImpl*>(parent)->layer();
 442   layer_->SetScrollParent(scroll_parent);
 443 }
 444
 445 void WebLayerImpl::setClipParent(blink::WebLayer* parent) {
 446   cc::Layer* clip_parent = NULL;
 447   if (parent)
 448     clip_parent = static_cast<WebLayerImpl*>(parent)->layer();
 449   layer_->SetClipParent(clip_parent);
 450 }
 451
 452 Layer* WebLayerImpl::layer() const { return layer_.get(); }
 453
 454 }  // namespace webkit