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 "cc/trees/layer_tree_host.h"
  18 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
  19 #include "third_party/WebKit/public/platform/WebFloatRect.h"
  20 #include "third_party/WebKit/public/platform/WebGraphicsLayerDebugInfo.h"
  21 #include "third_party/WebKit/public/platform/WebLayerClient.h"
  22 #include "third_party/WebKit/public/platform/WebLayerPositionConstraint.h"
  23 #include "third_party/WebKit/public/platform/WebLayerScrollClient.h"
  24 #include "third_party/WebKit/public/platform/WebSize.h"
  25 #include "third_party/skia/include/utils/SkMatrix44.h"
  26 #include "webkit/renderer/compositor_bindings/web_animation_impl.h"
  27 #include "webkit/renderer/compositor_bindings/web_blend_mode.h"
  28 #include "webkit/renderer/compositor_bindings/web_filter_operations_impl.h"
  29 #include "webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.h"
  30
  31 using cc::Animation;
  32 using cc::Layer;
  33 using blink::WebLayer;
  34 using blink::WebFloatPoint;
  35 using blink::WebVector;
  36 using blink::WebRect;
  37 using blink::WebSize;
  38 using blink::WebColor;
  39 using blink::WebFilterOperations;
  40
  41 namespace webkit {
  42 namespace {
  43
  44 struct ImplSidePaintingStatus {
  45   ImplSidePaintingStatus()
  46       : enabled(cc::switches::IsImplSidePaintingEnabled()) {
  47   }
  48   bool enabled;
  49 };
  50 base::LazyInstance<ImplSidePaintingStatus> g_impl_side_painting_status =
  51     LAZY_INSTANCE_INITIALIZER;
  52
  53 }  // namespace
  54
  55 WebLayerImpl::WebLayerImpl() : layer_(Layer::Create()) {
  56   web_layer_client_ = NULL;
  57   layer_->SetLayerClient(this);
  58 }
  59
  60 WebLayerImpl::WebLayerImpl(scoped_refptr<Layer> layer) : layer_(layer) {
  61   web_layer_client_ = NULL;
  62   layer_->SetLayerClient(this);
  63 }
  64
  65 WebLayerImpl::~WebLayerImpl() {
  66   layer_->ClearRenderSurface();
  67   layer_->set_layer_animation_delegate(NULL);
  68   web_layer_client_ = NULL;
  69 }
  70
  71 // static
  72 bool WebLayerImpl::UsingPictureLayer() {
  73   return g_impl_side_painting_status.Get().enabled;
  74 }
  75
  76 int WebLayerImpl::id() const { return layer_->id(); }
  77
  78 void WebLayerImpl::invalidateRect(const blink::WebFloatRect& rect) {
  79   layer_->SetNeedsDisplayRect(rect);
  80 }
  81
  82 void WebLayerImpl::invalidate() { layer_->SetNeedsDisplay(); }
  83
  84 void WebLayerImpl::addChild(WebLayer* child) {
  85   layer_->AddChild(static_cast<WebLayerImpl*>(child)->layer());
  86 }
  87
  88 void WebLayerImpl::insertChild(WebLayer* child, size_t index) {
  89   layer_->InsertChild(static_cast<WebLayerImpl*>(child)->layer(), index);
  90 }
  91
  92 void WebLayerImpl::replaceChild(WebLayer* reference, WebLayer* new_layer) {
  93   layer_->ReplaceChild(static_cast<WebLayerImpl*>(reference)->layer(),
  94                        static_cast<WebLayerImpl*>(new_layer)->layer());
  95 }
  96
  97 void WebLayerImpl::removeFromParent() { layer_->RemoveFromParent(); }
  98
  99 void WebLayerImpl::removeAllChildren() { layer_->RemoveAllChildren(); }
 100
 101 void WebLayerImpl::setAnchorPoint(const WebFloatPoint& anchor_point) {
 102   layer_->SetAnchorPoint(anchor_point);
 103 }
 104
 105 WebFloatPoint WebLayerImpl::anchorPoint() const {
 106   return layer_->anchor_point();
 107 }
 108
 109 void WebLayerImpl::setAnchorPointZ(float anchor_point_z) {
 110   layer_->SetAnchorPointZ(anchor_point_z);
 111 }
 112
 113 float WebLayerImpl::anchorPointZ() const { return layer_->anchor_point_z(); }
 114
 115 void WebLayerImpl::setBounds(const WebSize& size) { layer_->SetBounds(size); }
 116
 117 WebSize WebLayerImpl::bounds() const { return layer_->bounds(); }
 118
 119 void WebLayerImpl::setMasksToBounds(bool masks_to_bounds) {
 120   layer_->SetMasksToBounds(masks_to_bounds);
 121 }
 122
 123 bool WebLayerImpl::masksToBounds() const { return layer_->masks_to_bounds(); }
 124
 125 void WebLayerImpl::setMaskLayer(WebLayer* maskLayer) {
 126   layer_->SetMaskLayer(
 127       maskLayer ? static_cast<WebLayerImpl*>(maskLayer)->layer() : 0);
 128 }
 129
 130 void WebLayerImpl::setReplicaLayer(WebLayer* replica_layer) {
 131   layer_->SetReplicaLayer(
 132       replica_layer ? static_cast<WebLayerImpl*>(replica_layer)->layer() : 0);
 133 }
 134
 135 void WebLayerImpl::setOpacity(float opacity) { layer_->SetOpacity(opacity); }
 136
 137 float WebLayerImpl::opacity() const { return layer_->opacity(); }
 138
 139 void WebLayerImpl::setBlendMode(blink::WebBlendMode blend_mode) {
 140   layer_->SetBlendMode(BlendModeToSkia(blend_mode));
 141 }
 142
 143 blink::WebBlendMode WebLayerImpl::blendMode() const {
 144   return BlendModeFromSkia(layer_->blend_mode());
 145 }
 146
 147 void WebLayerImpl::setIsRootForIsolatedGroup(bool isolate) {
 148   layer_->SetIsRootForIsolatedGroup(isolate);
 149 }
 150
 151 bool WebLayerImpl::isRootForIsolatedGroup() {
 152   return layer_->is_root_for_isolated_group();
 153 }
 154
 155 void WebLayerImpl::setOpaque(bool opaque) { layer_->SetContentsOpaque(opaque); }
 156
 157 bool WebLayerImpl::opaque() const { return layer_->contents_opaque(); }
 158
 159 void WebLayerImpl::setPosition(const WebFloatPoint& position) {
 160   layer_->SetPosition(position);
 161 }
 162
 163 WebFloatPoint WebLayerImpl::position() const { return layer_->position(); }
 164
 165 void WebLayerImpl::setTransform(const SkMatrix44& matrix) {
 166   gfx::Transform transform;
 167   transform.matrix() = matrix;
 168   layer_->SetTransform(transform);
 169 }
 170
 171 SkMatrix44 WebLayerImpl::transform() const {
 172   return layer_->transform().matrix();
 173 }
 174
 175 void WebLayerImpl::setDrawsContent(bool draws_content) {
 176   layer_->SetIsDrawable(draws_content);
 177 }
 178
 179 bool WebLayerImpl::drawsContent() const { return layer_->DrawsContent(); }
 180
 181 void WebLayerImpl::setShouldFlattenTransform(bool flatten) {
 182   layer_->SetShouldFlattenTransform(flatten);
 183 }
 184
 185 void WebLayerImpl::setRenderingContext(int context) {
 186   layer_->SetIs3dSorted(context != 0);
 187 }
 188
 189 void WebLayerImpl::setUseParentBackfaceVisibility(
 190     bool use_parent_backface_visibility) {
 191   layer_->set_use_parent_backface_visibility(use_parent_backface_visibility);
 192 }
 193
 194 void WebLayerImpl::setBackgroundColor(WebColor color) {
 195   layer_->SetBackgroundColor(color);
 196 }
 197
 198 WebColor WebLayerImpl::backgroundColor() const {
 199   return layer_->background_color();
 200 }
 201
 202 void WebLayerImpl::setFilters(const WebFilterOperations& filters) {
 203   const WebFilterOperationsImpl& filters_impl =
 204       static_cast<const WebFilterOperationsImpl&>(filters);
 205   layer_->SetFilters(filters_impl.AsFilterOperations());
 206 }
 207
 208 void WebLayerImpl::setBackgroundFilters(const WebFilterOperations& filters) {
 209   const WebFilterOperationsImpl& filters_impl =
 210       static_cast<const WebFilterOperationsImpl&>(filters);
 211   layer_->SetBackgroundFilters(filters_impl.AsFilterOperations());
 212 }
 213
 214 void WebLayerImpl::setAnimationDelegate(
 215       blink::WebAnimationDelegate* delegate) {
 216   animation_delegate_adapter_.reset(
 217       new WebToCCAnimationDelegateAdapter(delegate));
 218   layer_->set_layer_animation_delegate(animation_delegate_adapter_.get());
 219 }
 220
 221 bool WebLayerImpl::addAnimation(blink::WebAnimation* animation) {
 222   bool result = layer_->AddAnimation(
 223       static_cast<WebAnimationImpl*>(animation)->PassAnimation());
 224   delete animation;
 225   return result;
 226 }
 227
 228 void WebLayerImpl::removeAnimation(int animation_id) {
 229   layer_->RemoveAnimation(animation_id);
 230 }
 231
 232 void WebLayerImpl::removeAnimation(
 233     int animation_id,
 234     blink::WebAnimation::TargetProperty target_property) {
 235   layer_->layer_animation_controller()->RemoveAnimation(
 236       animation_id,
 237       static_cast<Animation::TargetProperty>(target_property));
 238 }
 239
 240 void WebLayerImpl::pauseAnimation(int animation_id, double time_offset) {
 241   layer_->PauseAnimation(animation_id, time_offset);
 242 }
 243
 244 bool WebLayerImpl::hasActiveAnimation() { return layer_->HasActiveAnimation(); }
 245
 246 void WebLayerImpl::setForceRenderSurface(bool force_render_surface) {
 247   layer_->SetForceRenderSurface(force_render_surface);
 248 }
 249
 250 void WebLayerImpl::setScrollPosition(blink::WebPoint position) {
 251   layer_->SetScrollOffset(gfx::Point(position).OffsetFromOrigin());
 252 }
 253
 254 blink::WebPoint WebLayerImpl::scrollPosition() const {
 255   return gfx::PointAtOffsetFromOrigin(layer_->scroll_offset());
 256 }
 257
 258 WebSize WebLayerImpl::maxScrollPosition() const {
 259   return layer_->MaxScrollOffset();
 260 }
 261
 262 void WebLayerImpl::setScrollClipLayer(WebLayer* clip_layer) {
 263   cc::Layer* cc_clip_layer =
 264       clip_layer ? static_cast<WebLayerImpl*>(clip_layer)->layer() : 0;
 265   layer_->SetScrollClipLayerId(cc_clip_layer->id());
 266 }
 267
 268 bool WebLayerImpl::scrollable() const { return layer_->scrollable(); }
 269
 270 void WebLayerImpl::setUserScrollable(bool horizontal, bool vertical) {
 271   layer_->SetUserScrollable(horizontal, vertical);
 272 }
 273
 274 bool WebLayerImpl::userScrollableHorizontal() const {
 275   return layer_->user_scrollable_horizontal();
 276 }
 277
 278 bool WebLayerImpl::userScrollableVertical() const {
 279   return layer_->user_scrollable_vertical();
 280 }
 281
 282 void WebLayerImpl::setHaveWheelEventHandlers(bool have_wheel_event_handlers) {
 283   layer_->SetHaveWheelEventHandlers(have_wheel_event_handlers);
 284 }
 285
 286 bool WebLayerImpl::haveWheelEventHandlers() const {
 287   return layer_->have_wheel_event_handlers();
 288 }
 289
 290 void WebLayerImpl::setShouldScrollOnMainThread(
 291     bool should_scroll_on_main_thread) {
 292   layer_->SetShouldScrollOnMainThread(should_scroll_on_main_thread);
 293 }
 294
 295 bool WebLayerImpl::shouldScrollOnMainThread() const {
 296   return layer_->should_scroll_on_main_thread();
 297 }
 298
 299 void WebLayerImpl::setNonFastScrollableRegion(const WebVector<WebRect>& rects) {
 300   cc::Region region;
 301   for (size_t i = 0; i < rects.size(); ++i)
 302     region.Union(rects[i]);
 303   layer_->SetNonFastScrollableRegion(region);
 304 }
 305
 306 WebVector<WebRect> WebLayerImpl::nonFastScrollableRegion() const {
 307   size_t num_rects = 0;
 308   for (cc::Region::Iterator region_rects(layer_->non_fast_scrollable_region());
 309        region_rects.has_rect();
 310        region_rects.next())
 311     ++num_rects;
 312
 313   WebVector<WebRect> result(num_rects);
 314   size_t i = 0;
 315   for (cc::Region::Iterator region_rects(layer_->non_fast_scrollable_region());
 316        region_rects.has_rect();
 317        region_rects.next()) {
 318     result[i] = region_rects.rect();
 319     ++i;
 320   }
 321   return result;
 322 }
 323
 324 void WebLayerImpl::setTouchEventHandlerRegion(const WebVector<WebRect>& rects) {
 325   cc::Region region;
 326   for (size_t i = 0; i < rects.size(); ++i)
 327     region.Union(rects[i]);
 328   layer_->SetTouchEventHandlerRegion(region);
 329 }
 330
 331 WebVector<WebRect> WebLayerImpl::touchEventHandlerRegion() const {
 332   size_t num_rects = 0;
 333   for (cc::Region::Iterator region_rects(layer_->touch_event_handler_region());
 334        region_rects.has_rect();
 335        region_rects.next())
 336     ++num_rects;
 337
 338   WebVector<WebRect> result(num_rects);
 339   size_t i = 0;
 340   for (cc::Region::Iterator region_rects(layer_->touch_event_handler_region());
 341        region_rects.has_rect();
 342        region_rects.next()) {
 343     result[i] = region_rects.rect();
 344     ++i;
 345   }
 346   return result;
 347 }
 348
 349 void WebLayerImpl::setIsContainerForFixedPositionLayers(bool enable) {
 350   layer_->SetIsContainerForFixedPositionLayers(enable);
 351 }
 352
 353 bool WebLayerImpl::isContainerForFixedPositionLayers() const {
 354   return layer_->IsContainerForFixedPositionLayers();
 355 }
 356
 357 static blink::WebLayerPositionConstraint ToWebLayerPositionConstraint(
 358     const cc::LayerPositionConstraint& constraint) {
 359   blink::WebLayerPositionConstraint web_constraint;
 360   web_constraint.isFixedPosition = constraint.is_fixed_position();
 361   web_constraint.isFixedToRightEdge = constraint.is_fixed_to_right_edge();
 362   web_constraint.isFixedToBottomEdge = constraint.is_fixed_to_bottom_edge();
 363   return web_constraint;
 364 }
 365
 366 static cc::LayerPositionConstraint ToLayerPositionConstraint(
 367     const blink::WebLayerPositionConstraint& web_constraint) {
 368   cc::LayerPositionConstraint constraint;
 369   constraint.set_is_fixed_position(web_constraint.isFixedPosition);
 370   constraint.set_is_fixed_to_right_edge(web_constraint.isFixedToRightEdge);
 371   constraint.set_is_fixed_to_bottom_edge(web_constraint.isFixedToBottomEdge);
 372   return constraint;
 373 }
 374
 375 void WebLayerImpl::setPositionConstraint(
 376     const blink::WebLayerPositionConstraint& constraint) {
 377   layer_->SetPositionConstraint(ToLayerPositionConstraint(constraint));
 378 }
 379
 380 blink::WebLayerPositionConstraint WebLayerImpl::positionConstraint() const {
 381   return ToWebLayerPositionConstraint(layer_->position_constraint());
 382 }
 383
 384 void WebLayerImpl::setScrollClient(
 385     blink::WebLayerScrollClient* scroll_client) {
 386   if (scroll_client) {
 387     layer_->set_did_scroll_callback(
 388         base::Bind(&blink::WebLayerScrollClient::didScroll,
 389                    base::Unretained(scroll_client)));
 390   } else {
 391     layer_->set_did_scroll_callback(base::Closure());
 392   }
 393 }
 394
 395 bool WebLayerImpl::isOrphan() const { return !layer_->layer_tree_host(); }
 396
 397 void WebLayerImpl::setWebLayerClient(blink::WebLayerClient* client) {
 398   web_layer_client_ = client;
 399 }
 400
 401 class TracedDebugInfo : public base::debug::ConvertableToTraceFormat {
 402  public:
 403   // This object takes ownership of the debug_info object.
 404   explicit TracedDebugInfo(blink::WebGraphicsLayerDebugInfo* debug_info) :
 405     debug_info_(debug_info) {}
 406   virtual void AppendAsTraceFormat(std::string* out) const OVERRIDE {
 407     DCHECK(thread_checker_.CalledOnValidThread());
 408     blink::WebString web_string;
 409     debug_info_->appendAsTraceFormat(&web_string);
 410     out->append(web_string.utf8());
 411   }
 412  private:
 413   virtual ~TracedDebugInfo() {}
 414   scoped_ptr<blink::WebGraphicsLayerDebugInfo> debug_info_;
 415   base::ThreadChecker thread_checker_;
 416 };
 417
 418 scoped_refptr<base::debug::ConvertableToTraceFormat>
 419     WebLayerImpl::TakeDebugInfo() {
 420   if (!web_layer_client_)
 421     return NULL;
 422   blink::WebGraphicsLayerDebugInfo* debug_info =
 423       web_layer_client_->takeDebugInfoFor(this);
 424
 425   if (debug_info)
 426     return new TracedDebugInfo(debug_info);
 427   else
 428     return NULL;
 429 }
 430
 431 void WebLayerImpl::setScrollParent(blink::WebLayer* parent) {
 432   cc::Layer* scroll_parent = NULL;
 433   if (parent)
 434     scroll_parent = static_cast<WebLayerImpl*>(parent)->layer();
 435   layer_->SetScrollParent(scroll_parent);
 436 }
 437
 438 void WebLayerImpl::setClipParent(blink::WebLayer* parent) {
 439   cc::Layer* clip_parent = NULL;
 440   if (parent)
 441     clip_parent = static_cast<WebLayerImpl*>(parent)->layer();
 442   layer_->SetClipParent(clip_parent);
 443 }
 444
 445 Layer* WebLayerImpl::layer() const { return layer_.get(); }
 446
 447 }  // namespace webkit