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| 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 "cc/layer_impl.h" | |
| 6 | |
| 7 #include "base/debug/trace_event.h" | |
| 8 #include "base/stringprintf.h" | |
| 9 #include "base/values.h" | |
| 10 #include "cc/animation/animation_registrar.h" | |
| 11 #include "cc/animation/scrollbar_animation_controller.h" | |
| 12 #include "cc/animation/scrollbar_animation_controller_linear_fade.h" | |
| 13 #include "cc/base/math_util.h" | |
| 14 #include "cc/debug/debug_colors.h" | |
| 15 #include "cc/debug/layer_tree_debug_state.h" | |
| 16 #include "cc/quad_sink.h" | |
| 17 #include "cc/quads/debug_border_draw_quad.h" | |
| 18 #include "cc/scrollbar_layer_impl.h" | |
| 19 #include "cc/trees/layer_tree_impl.h" | |
| 20 #include "cc/trees/layer_tree_settings.h" | |
| 21 #include "cc/trees/proxy.h" | |
| 22 #include "ui/gfx/point_conversions.h" | |
| 23 #include "ui/gfx/quad_f.h" | |
| 24 #include "ui/gfx/rect_conversions.h" | |
| 25 | |
| 26 namespace cc { | |
| 27 | |
| 28 LayerImpl::LayerImpl(LayerTreeImpl* tree_impl, int id) | |
| 29 : parent_(NULL), | |
| 30 mask_layer_id_(-1), | |
| 31 replica_layer_id_(-1), | |
| 32 layer_id_(id), | |
| 33 layer_tree_impl_(tree_impl), | |
| 34 anchor_point_(0.5f, 0.5f), | |
| 35 anchor_point_z_(0.f), | |
| 36 scrollable_(false), | |
| 37 should_scroll_on_main_thread_(false), | |
| 38 have_wheel_event_handlers_(false), | |
| 39 background_color_(0), | |
| 40 stacking_order_changed_(false), | |
| 41 double_sided_(true), | |
| 42 layer_property_changed_(false), | |
| 43 layer_surface_property_changed_(false), | |
| 44 masks_to_bounds_(false), | |
| 45 contents_opaque_(false), | |
| 46 opacity_(1.0), | |
| 47 preserves_3d_(false), | |
| 48 use_parent_backface_visibility_(false), | |
| 49 draw_checkerboard_for_missing_tiles_(false), | |
| 50 draws_content_(false), | |
| 51 force_render_surface_(false), | |
| 52 is_container_for_fixed_position_layers_(false), | |
| 53 fixed_to_container_layer_(false), | |
| 54 draw_depth_(0.f), | |
| 55 #ifndef NDEBUG | |
| 56 between_will_draw_and_did_draw_(false), | |
| 57 #endif | |
| 58 horizontal_scrollbar_layer_(NULL), | |
| 59 vertical_scrollbar_layer_(NULL) { | |
| 60 DCHECK(layer_id_ > 0); | |
| 61 DCHECK(layer_tree_impl_); | |
| 62 layer_tree_impl_->RegisterLayer(this); | |
| 63 AnimationRegistrar* registrar = layer_tree_impl_->animationRegistrar(); | |
| 64 layer_animation_controller_ = | |
| 65 registrar->GetAnimationControllerForId(layer_id_); | |
| 66 layer_animation_controller_->AddObserver(this); | |
| 67 } | |
| 68 | |
| 69 LayerImpl::~LayerImpl() { | |
| 70 #ifndef NDEBUG | |
| 71 DCHECK(!between_will_draw_and_did_draw_); | |
| 72 #endif | |
| 73 layer_tree_impl_->UnregisterLayer(this); | |
| 74 layer_animation_controller_->RemoveObserver(this); | |
| 75 } | |
| 76 | |
| 77 void LayerImpl::AddChild(scoped_ptr<LayerImpl> child) { | |
| 78 child->set_parent(this); | |
| 79 DCHECK_EQ(layer_tree_impl(), child->layer_tree_impl()); | |
| 80 children_.push_back(child.Pass()); | |
| 81 layer_tree_impl()->set_needs_update_draw_properties(); | |
| 82 } | |
| 83 | |
| 84 scoped_ptr<LayerImpl> LayerImpl::RemoveChild(LayerImpl* child) { | |
| 85 for (ScopedPtrVector<LayerImpl>::iterator it = children_.begin(); | |
| 86 it != children_.end(); | |
| 87 ++it) { | |
| 88 if (*it == child) { | |
| 89 scoped_ptr<LayerImpl> ret = children_.take(it); | |
| 90 children_.erase(it); | |
| 91 layer_tree_impl()->set_needs_update_draw_properties(); | |
| 92 return ret.Pass(); | |
| 93 } | |
| 94 } | |
| 95 return scoped_ptr<LayerImpl>(); | |
| 96 } | |
| 97 | |
| 98 void LayerImpl::ClearChildList() { | |
| 99 if (children_.empty()) | |
| 100 return; | |
| 101 | |
| 102 children_.clear(); | |
| 103 layer_tree_impl()->set_needs_update_draw_properties(); | |
| 104 } | |
| 105 | |
| 106 void LayerImpl::CreateRenderSurface() { | |
| 107 DCHECK(!draw_properties_.render_surface); | |
| 108 draw_properties_.render_surface = | |
| 109 make_scoped_ptr(new RenderSurfaceImpl(this)); | |
| 110 draw_properties_.render_target = this; | |
| 111 } | |
| 112 | |
| 113 scoped_ptr<SharedQuadState> LayerImpl::CreateSharedQuadState() const { | |
| 114 scoped_ptr<SharedQuadState> state = SharedQuadState::Create(); | |
| 115 state->SetAll(draw_properties_.target_space_transform, | |
| 116 draw_properties_.content_bounds, | |
| 117 draw_properties_.visible_content_rect, | |
| 118 draw_properties_.clip_rect, | |
| 119 draw_properties_.is_clipped, | |
| 120 draw_properties_.opacity); | |
| 121 return state.Pass(); | |
| 122 } | |
| 123 | |
| 124 void LayerImpl::WillDraw(ResourceProvider* resource_provider) { | |
| 125 #ifndef NDEBUG | |
| 126 // willDraw/didDraw must be matched. | |
| 127 DCHECK(!between_will_draw_and_did_draw_); | |
| 128 between_will_draw_and_did_draw_ = true; | |
| 129 #endif | |
| 130 } | |
| 131 | |
| 132 void LayerImpl::DidDraw(ResourceProvider* resource_provider) { | |
| 133 #ifndef NDEBUG | |
| 134 DCHECK(between_will_draw_and_did_draw_); | |
| 135 between_will_draw_and_did_draw_ = false; | |
| 136 #endif | |
| 137 } | |
| 138 | |
| 139 bool LayerImpl::ShowDebugBorders() const { | |
| 140 return layer_tree_impl()->debug_state().showDebugBorders; | |
| 141 } | |
| 142 | |
| 143 void LayerImpl::GetDebugBorderProperties(SkColor* color, float* width) const { | |
| 144 if (draws_content_) { | |
| 145 *color = DebugColors::ContentLayerBorderColor(); | |
| 146 *width = DebugColors::ContentLayerBorderWidth(layer_tree_impl()); | |
| 147 return; | |
| 148 } | |
| 149 | |
| 150 if (masks_to_bounds_) { | |
| 151 *color = DebugColors::MaskingLayerBorderColor(); | |
| 152 *width = DebugColors::MaskingLayerBorderWidth(layer_tree_impl()); | |
| 153 return; | |
| 154 } | |
| 155 | |
| 156 *color = DebugColors::ContainerLayerBorderColor(); | |
| 157 *width = DebugColors::ContainerLayerBorderWidth(layer_tree_impl()); | |
| 158 } | |
| 159 | |
| 160 void LayerImpl::AppendDebugBorderQuad( | |
| 161 QuadSink* quad_sink, | |
| 162 const SharedQuadState* shared_quad_state, | |
| 163 AppendQuadsData* append_quads_data) const { | |
| 164 if (!ShowDebugBorders()) | |
| 165 return; | |
| 166 | |
| 167 SkColor color; | |
| 168 float width; | |
| 169 GetDebugBorderProperties(&color, &width); | |
| 170 | |
| 171 gfx::Rect content_rect(content_bounds()); | |
| 172 scoped_ptr<DebugBorderDrawQuad> debugBorderQuad = | |
| 173 DebugBorderDrawQuad::Create(); | |
| 174 debugBorderQuad->SetNew(shared_quad_state, content_rect, color, width); | |
| 175 quad_sink->Append(debugBorderQuad.PassAs<DrawQuad>(), append_quads_data); | |
| 176 } | |
| 177 | |
| 178 bool LayerImpl::HasDelegatedContent() const { | |
| 179 return false; | |
| 180 } | |
| 181 | |
| 182 bool LayerImpl::HasContributingDelegatedRenderPasses() const { | |
| 183 return false; | |
| 184 } | |
| 185 | |
| 186 RenderPass::Id LayerImpl::FirstContributingRenderPassId() const { | |
| 187 return RenderPass::Id(0, 0); | |
| 188 } | |
| 189 | |
| 190 RenderPass::Id LayerImpl::NextContributingRenderPassId(RenderPass::Id id) | |
| 191 const { | |
| 192 return RenderPass::Id(0, 0); | |
| 193 } | |
| 194 | |
| 195 ResourceProvider::ResourceId LayerImpl::ContentsResourceId() const { | |
| 196 NOTREACHED(); | |
| 197 return 0; | |
| 198 } | |
| 199 | |
| 200 void LayerImpl::SetSentScrollDelta(gfx::Vector2d sent_scroll_delta) { | |
| 201 // Pending tree never has sent scroll deltas | |
| 202 DCHECK(layer_tree_impl()->IsActiveTree()); | |
| 203 | |
| 204 if (sent_scroll_delta_ == sent_scroll_delta) | |
| 205 return; | |
| 206 | |
| 207 sent_scroll_delta_ = sent_scroll_delta; | |
| 208 } | |
| 209 | |
| 210 gfx::Vector2dF LayerImpl::ScrollBy(gfx::Vector2dF scroll) { | |
| 211 gfx::Vector2dF min_delta = -scroll_offset_; | |
| 212 gfx::Vector2dF max_delta = max_scroll_offset_ - scroll_offset_; | |
| 213 // Clamp new_delta so that position + delta stays within scroll bounds. | |
| 214 gfx::Vector2dF new_delta = (scroll_delta_ + scroll); | |
| 215 new_delta.ClampToMin(min_delta); | |
| 216 new_delta.ClampToMax(max_delta); | |
| 217 gfx::Vector2dF unscrolled = scroll_delta_ + scroll - new_delta; | |
| 218 | |
| 219 SetScrollDelta(new_delta); | |
| 220 return unscrolled; | |
| 221 } | |
| 222 | |
| 223 InputHandlerClient::ScrollStatus LayerImpl::TryScroll( | |
| 224 gfx::PointF screen_space_point, | |
| 225 InputHandlerClient::ScrollInputType type) const { | |
| 226 if (should_scroll_on_main_thread()) { | |
| 227 TRACE_EVENT0("cc", "LayerImpl::tryScroll: Failed shouldScrollOnMainThread"); | |
| 228 return InputHandlerClient::ScrollOnMainThread; | |
| 229 } | |
| 230 | |
| 231 if (!screen_space_transform().IsInvertible()) { | |
| 232 TRACE_EVENT0("cc", "LayerImpl::tryScroll: Ignored nonInvertibleTransform"); | |
| 233 return InputHandlerClient::ScrollIgnored; | |
| 234 } | |
| 235 | |
| 236 if (!non_fast_scrollable_region().IsEmpty()) { | |
| 237 bool clipped = false; | |
| 238 gfx::Transform inverse_screen_space_transform( | |
| 239 gfx::Transform::kSkipInitialization); | |
| 240 if (!screen_space_transform().GetInverse(&inverse_screen_space_transform)) { | |
| 241 // TODO(shawnsingh): We shouldn't be applying a projection if screen space | |
| 242 // transform is uninvertible here. Perhaps we should be returning | |
| 243 // ScrollOnMainThread in this case? | |
| 244 } | |
| 245 | |
| 246 gfx::PointF hit_test_point_in_content_space = | |
| 247 MathUtil::ProjectPoint(inverse_screen_space_transform, | |
| 248 screen_space_point, | |
| 249 &clipped); | |
| 250 gfx::PointF hit_test_point_in_layer_space = | |
| 251 gfx::ScalePoint(hit_test_point_in_content_space, | |
| 252 1.f / contents_scale_x(), | |
| 253 1.f / contents_scale_y()); | |
| 254 if (!clipped && | |
| 255 non_fast_scrollable_region().Contains( | |
| 256 gfx::ToRoundedPoint(hit_test_point_in_layer_space))) { | |
| 257 TRACE_EVENT0("cc", | |
| 258 "LayerImpl::tryScroll: Failed nonFastScrollableRegion"); | |
| 259 return InputHandlerClient::ScrollOnMainThread; | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 if (type == InputHandlerClient::Wheel && have_wheel_event_handlers()) { | |
| 264 TRACE_EVENT0("cc", "LayerImpl::tryScroll: Failed wheelEventHandlers"); | |
| 265 return InputHandlerClient::ScrollOnMainThread; | |
| 266 } | |
| 267 | |
| 268 if (!scrollable()) { | |
| 269 TRACE_EVENT0("cc", "LayerImpl::tryScroll: Ignored not scrollable"); | |
| 270 return InputHandlerClient::ScrollIgnored; | |
| 271 } | |
| 272 | |
| 273 if (max_scroll_offset_.x() <= 0 && max_scroll_offset_.y() <= 0) { | |
| 274 TRACE_EVENT0("cc", | |
| 275 "LayerImpl::tryScroll: Ignored. Technically scrollable," | |
| 276 " but has no affordance in either direction."); | |
| 277 return InputHandlerClient::ScrollIgnored; | |
| 278 } | |
| 279 | |
| 280 return InputHandlerClient::ScrollStarted; | |
| 281 } | |
| 282 | |
| 283 bool LayerImpl::DrawCheckerboardForMissingTiles() const { | |
| 284 return draw_checkerboard_for_missing_tiles_ && | |
| 285 !layer_tree_impl()->settings().backgroundColorInsteadOfCheckerboard; | |
| 286 } | |
| 287 | |
| 288 gfx::Rect LayerImpl::LayerRectToContentRect( | |
| 289 const gfx::RectF& layer_rect) const { | |
| 290 gfx::RectF content_rect = | |
| 291 gfx::ScaleRect(layer_rect, contents_scale_x(), contents_scale_y()); | |
| 292 // Intersect with content rect to avoid the extra pixel because for some | |
| 293 // values x and y, ceil((x / y) * y) may be x + 1. | |
| 294 content_rect.Intersect(gfx::Rect(content_bounds())); | |
| 295 return gfx::ToEnclosingRect(content_rect); | |
| 296 } | |
| 297 | |
| 298 skia::RefPtr<SkPicture> LayerImpl::GetPicture() { | |
| 299 return skia::RefPtr<SkPicture>(); | |
| 300 } | |
| 301 | |
| 302 bool LayerImpl::CanClipSelf() const { | |
| 303 return false; | |
| 304 } | |
| 305 | |
| 306 bool LayerImpl::AreVisibleResourcesReady() const { | |
| 307 return true; | |
| 308 } | |
| 309 | |
| 310 scoped_ptr<LayerImpl> LayerImpl::CreateLayerImpl(LayerTreeImpl* tree_impl) { | |
| 311 return LayerImpl::Create(tree_impl, layer_id_); | |
| 312 } | |
| 313 | |
| 314 void LayerImpl::PushPropertiesTo(LayerImpl* layer) { | |
| 315 layer->SetAnchorPoint(anchor_point_); | |
| 316 layer->SetAnchorPointZ(anchor_point_z_); | |
| 317 layer->SetBackgroundColor(background_color_); | |
| 318 layer->SetBounds(bounds_); | |
| 319 layer->SetContentBounds(content_bounds()); | |
| 320 layer->SetContentsScale(contents_scale_x(), contents_scale_y()); | |
| 321 layer->SetDebugName(debug_name_); | |
| 322 layer->SetDoubleSided(double_sided_); | |
| 323 layer->SetDrawCheckerboardForMissingTiles( | |
| 324 draw_checkerboard_for_missing_tiles_); | |
| 325 layer->SetForceRenderSurface(force_render_surface_); | |
| 326 layer->SetDrawsContent(DrawsContent()); | |
| 327 layer->SetFilters(filters()); | |
| 328 layer->SetFilter(filter()); | |
| 329 layer->SetBackgroundFilters(background_filters()); | |
| 330 layer->SetMasksToBounds(masks_to_bounds_); | |
| 331 layer->SetShouldScrollOnMainThread(should_scroll_on_main_thread_); | |
| 332 layer->SetHaveWheelEventHandlers(have_wheel_event_handlers_); | |
| 333 layer->SetNonFastScrollableRegion(non_fast_scrollable_region_); | |
| 334 layer->SetTouchEventHandlerRegion(touch_event_handler_region_); | |
| 335 layer->SetContentsOpaque(contents_opaque_); | |
| 336 layer->SetOpacity(opacity_); | |
| 337 layer->SetPosition(position_); | |
| 338 layer->SetIsContainerForFixedPositionLayers( | |
| 339 is_container_for_fixed_position_layers_); | |
| 340 layer->SetFixedToContainerLayer(fixed_to_container_layer_); | |
| 341 layer->SetPreserves3d(preserves_3d()); | |
| 342 layer->SetUseParentBackfaceVisibility(use_parent_backface_visibility_); | |
| 343 layer->SetSublayerTransform(sublayer_transform_); | |
| 344 layer->SetTransform(transform_); | |
| 345 | |
| 346 layer->SetScrollable(scrollable_); | |
| 347 layer->SetScrollOffset(scroll_offset_); | |
| 348 layer->SetMaxScrollOffset(max_scroll_offset_); | |
| 349 | |
| 350 // If the main thread commits multiple times before the impl thread actually | |
| 351 // draws, then damage tracking will become incorrect if we simply clobber the | |
| 352 // updateRect here. The LayerImpl's updateRect needs to accumulate (i.e. | |
| 353 // union) any update changes that have occurred on the main thread. | |
| 354 update_rect_.Union(layer->update_rect()); | |
| 355 layer->set_update_rect(update_rect_); | |
| 356 | |
| 357 layer->SetScrollDelta(layer->scroll_delta() - layer->sent_scroll_delta()); | |
| 358 layer->SetSentScrollDelta(gfx::Vector2d()); | |
| 359 | |
| 360 layer->SetStackingOrderChanged(stacking_order_changed_); | |
| 361 | |
| 362 layer_animation_controller_->PushAnimationUpdatesTo( | |
| 363 layer->layer_animation_controller()); | |
| 364 | |
| 365 // Reset any state that should be cleared for the next update. | |
| 366 stacking_order_changed_ = false; | |
| 367 update_rect_ = gfx::RectF(); | |
| 368 } | |
| 369 | |
| 370 std::string LayerImpl::IndentString(int indent) { | |
| 371 std::string str; | |
| 372 for (int i = 0; i != indent; ++i) | |
| 373 str.append(" "); | |
| 374 return str; | |
| 375 } | |
| 376 | |
| 377 void LayerImpl::DumpLayerProperties(std::string* str, int indent) const { | |
| 378 std::string indent_str = IndentString(indent); | |
| 379 str->append(indent_str); | |
| 380 base::StringAppendF(str, "layer ID: %d\n", layer_id_); | |
| 381 | |
| 382 str->append(indent_str); | |
| 383 base::StringAppendF( | |
| 384 str, "bounds: %d, %d\n", bounds().width(), bounds().height()); | |
| 385 | |
| 386 if (draw_properties_.render_target) { | |
| 387 str->append(indent_str); | |
| 388 base::StringAppendF( | |
| 389 str, "renderTarget: %d\n", draw_properties_.render_target->layer_id_); | |
| 390 } | |
| 391 | |
| 392 str->append(indent_str); | |
| 393 base::StringAppendF(str, "position: %f, %f\n", position_.x(), position_.y()); | |
| 394 | |
| 395 str->append(indent_str); | |
| 396 base::StringAppendF(str, "contentsOpaque: %d\n", contents_opaque_); | |
| 397 | |
| 398 str->append(indent_str); | |
| 399 const gfx::Transform& transform = draw_properties_.target_space_transform; | |
| 400 base::StringAppendF(str, | |
| 401 "drawTransform: %f, %f, %f, %f // %f, %f, %f, %f" | |
| 402 " // %f, %f, %f, %f // %f, %f, %f, %f\n", | |
| 403 transform.matrix().getDouble(0, 0), | |
| 404 transform.matrix().getDouble(0, 1), | |
| 405 transform.matrix().getDouble(0, 2), | |
| 406 transform.matrix().getDouble(0, 3), | |
| 407 transform.matrix().getDouble(1, 0), | |
| 408 transform.matrix().getDouble(1, 1), | |
| 409 transform.matrix().getDouble(1, 2), | |
| 410 transform.matrix().getDouble(1, 3), | |
| 411 transform.matrix().getDouble(2, 0), | |
| 412 transform.matrix().getDouble(2, 1), | |
| 413 transform.matrix().getDouble(2, 2), | |
| 414 transform.matrix().getDouble(2, 3), | |
| 415 transform.matrix().getDouble(3, 0), | |
| 416 transform.matrix().getDouble(3, 1), | |
| 417 transform.matrix().getDouble(3, 2), | |
| 418 transform.matrix().getDouble(3, 3)); | |
| 419 | |
| 420 str->append(indent_str); | |
| 421 base::StringAppendF( | |
| 422 str, "draws_content: %s\n", draws_content_ ? "yes" : "no"); | |
| 423 } | |
| 424 | |
| 425 std::string LayerImpl::LayerTreeAsText() const { | |
| 426 std::string str; | |
| 427 DumpLayer(&str, 0); | |
| 428 return str; | |
| 429 } | |
| 430 | |
| 431 void LayerImpl::DumpLayer(std::string* str, int indent) const { | |
| 432 str->append(IndentString(indent)); | |
| 433 base::StringAppendF(str, "%s(%s)\n", LayerTypeAsString(), debug_name_.data()); | |
| 434 DumpLayerProperties(str, indent+2); | |
| 435 if (replica_layer_) { | |
| 436 str->append(IndentString(indent+2)); | |
| 437 str->append("Replica:\n"); | |
| 438 replica_layer_->DumpLayer(str, indent+3); | |
| 439 } | |
| 440 if (mask_layer_) { | |
| 441 str->append(IndentString(indent+2)); | |
| 442 str->append("Mask:\n"); | |
| 443 mask_layer_->DumpLayer(str, indent+3); | |
| 444 } | |
| 445 for (size_t i = 0; i < children_.size(); ++i) | |
| 446 children_[i]->DumpLayer(str, indent+1); | |
| 447 } | |
| 448 | |
| 449 base::DictionaryValue* LayerImpl::LayerTreeAsJson() const { | |
| 450 base::ListValue* list; | |
| 451 base::DictionaryValue* result = new base::DictionaryValue; | |
| 452 result->SetString("LayerType", LayerTypeAsString()); | |
| 453 | |
| 454 list = new base::ListValue; | |
| 455 list->AppendInteger(bounds().width()); | |
| 456 list->AppendInteger(bounds().height()); | |
| 457 result->Set("Bounds", list); | |
| 458 | |
| 459 list = new base::ListValue; | |
| 460 list->AppendDouble(position_.x()); | |
| 461 list->AppendDouble(position_.y()); | |
| 462 result->Set("Position", list); | |
| 463 | |
| 464 const gfx::Transform& gfx_transform = draw_properties_.target_space_transform; | |
| 465 double transform[16]; | |
| 466 gfx_transform.matrix().asColMajord(transform); | |
| 467 list = new base::ListValue; | |
| 468 for (int i = 0; i < 16; ++i) | |
| 469 list->AppendDouble(transform[i]); | |
| 470 result->Set("DrawTransform", list); | |
| 471 | |
| 472 result->SetBoolean("DrawsContent", draws_content_); | |
| 473 result->SetDouble("Opacity", opacity()); | |
| 474 | |
| 475 list = new base::ListValue; | |
| 476 for (size_t i = 0; i < children_.size(); ++i) | |
| 477 list->Append(children_[i]->LayerTreeAsJson()); | |
| 478 result->Set("Children", list); | |
| 479 | |
| 480 return result; | |
| 481 } | |
| 482 | |
| 483 void LayerImpl::SetStackingOrderChanged(bool stacking_order_changed) { | |
| 484 if (stacking_order_changed) { | |
| 485 stacking_order_changed_ = true; | |
| 486 NoteLayerPropertyChangedForSubtree(); | |
| 487 } | |
| 488 } | |
| 489 | |
| 490 bool LayerImpl::LayerSurfacePropertyChanged() const { | |
| 491 if (layer_surface_property_changed_) | |
| 492 return true; | |
| 493 | |
| 494 // If this layer's surface property hasn't changed, we want to see if | |
| 495 // some layer above us has changed this property. This is done for the | |
| 496 // case when such parent layer does not draw content, and therefore will | |
| 497 // not be traversed by the damage tracker. We need to make sure that | |
| 498 // property change on such layer will be caught by its descendants. | |
| 499 LayerImpl* current = this->parent_; | |
| 500 while (current && !current->draw_properties_.render_surface) { | |
| 501 if (current->layer_surface_property_changed_) | |
| 502 return true; | |
| 503 current = current->parent_; | |
| 504 } | |
| 505 | |
| 506 return false; | |
| 507 } | |
| 508 | |
| 509 void LayerImpl::NoteLayerSurfacePropertyChanged() { | |
| 510 layer_surface_property_changed_ = true; | |
| 511 layer_tree_impl()->set_needs_update_draw_properties(); | |
| 512 } | |
| 513 | |
| 514 void LayerImpl::NoteLayerPropertyChanged() { | |
| 515 layer_property_changed_ = true; | |
| 516 layer_tree_impl()->set_needs_update_draw_properties(); | |
| 517 } | |
| 518 | |
| 519 void LayerImpl::NoteLayerPropertyChangedForSubtree() { | |
| 520 NoteLayerPropertyChanged(); | |
| 521 NoteLayerPropertyChangedForDescendants(); | |
| 522 } | |
| 523 | |
| 524 void LayerImpl::NoteLayerPropertyChangedForDescendants() { | |
| 525 layer_tree_impl()->set_needs_update_draw_properties(); | |
| 526 for (size_t i = 0; i < children_.size(); ++i) | |
| 527 children_[i]->NoteLayerPropertyChangedForSubtree(); | |
| 528 } | |
| 529 | |
| 530 const char* LayerImpl::LayerTypeAsString() const { | |
| 531 return "Layer"; | |
| 532 } | |
| 533 | |
| 534 void LayerImpl::ResetAllChangeTrackingForSubtree() { | |
| 535 layer_property_changed_ = false; | |
| 536 layer_surface_property_changed_ = false; | |
| 537 | |
| 538 update_rect_ = gfx::RectF(); | |
| 539 | |
| 540 if (draw_properties_.render_surface) | |
| 541 draw_properties_.render_surface->ResetPropertyChangedFlag(); | |
| 542 | |
| 543 if (mask_layer_) | |
| 544 mask_layer_->ResetAllChangeTrackingForSubtree(); | |
| 545 | |
| 546 if (replica_layer_) { | |
| 547 // This also resets the replica mask, if it exists. | |
| 548 replica_layer_->ResetAllChangeTrackingForSubtree(); | |
| 549 } | |
| 550 | |
| 551 for (size_t i = 0; i < children_.size(); ++i) | |
| 552 children_[i]->ResetAllChangeTrackingForSubtree(); | |
| 553 } | |
| 554 | |
| 555 bool LayerImpl::LayerIsAlwaysDamaged() const { | |
| 556 return false; | |
| 557 } | |
| 558 | |
| 559 void LayerImpl::OnOpacityAnimated(float opacity) { | |
| 560 SetOpacity(opacity); | |
| 561 } | |
| 562 | |
| 563 void LayerImpl::OnTransformAnimated(const gfx::Transform& transform) { | |
| 564 SetTransform(transform); | |
| 565 } | |
| 566 | |
| 567 bool LayerImpl::IsActive() const { | |
| 568 return layer_tree_impl_->IsActiveTree(); | |
| 569 } | |
| 570 | |
| 571 void LayerImpl::SetBounds(gfx::Size bounds) { | |
| 572 if (bounds_ == bounds) | |
| 573 return; | |
| 574 | |
| 575 bounds_ = bounds; | |
| 576 | |
| 577 if (masks_to_bounds()) | |
| 578 NoteLayerPropertyChangedForSubtree(); | |
| 579 else | |
| 580 NoteLayerPropertyChanged(); | |
| 581 } | |
| 582 | |
| 583 void LayerImpl::SetMaskLayer(scoped_ptr<LayerImpl> mask_layer) { | |
| 584 int new_layer_id = mask_layer ? mask_layer->id() : -1; | |
| 585 | |
| 586 if (mask_layer) { | |
| 587 DCHECK_EQ(layer_tree_impl(), mask_layer->layer_tree_impl()); | |
| 588 DCHECK_NE(new_layer_id, mask_layer_id_); | |
| 589 } else if (new_layer_id == mask_layer_id_) { | |
| 590 return; | |
| 591 } | |
| 592 | |
| 593 mask_layer_ = mask_layer.Pass(); | |
| 594 mask_layer_id_ = new_layer_id; | |
| 595 if (mask_layer_) | |
| 596 mask_layer_->set_parent(this); | |
| 597 NoteLayerPropertyChangedForSubtree(); | |
| 598 } | |
| 599 | |
| 600 scoped_ptr<LayerImpl> LayerImpl::TakeMaskLayer() { | |
| 601 mask_layer_id_ = -1; | |
| 602 return mask_layer_.Pass(); | |
| 603 } | |
| 604 | |
| 605 void LayerImpl::SetReplicaLayer(scoped_ptr<LayerImpl> replica_layer) { | |
| 606 int new_layer_id = replica_layer ? replica_layer->id() : -1; | |
| 607 | |
| 608 if (replica_layer) { | |
| 609 DCHECK_EQ(layer_tree_impl(), replica_layer->layer_tree_impl()); | |
| 610 DCHECK_NE(new_layer_id, replica_layer_id_); | |
| 611 } else if (new_layer_id == replica_layer_id_) { | |
| 612 return; | |
| 613 } | |
| 614 | |
| 615 replica_layer_ = replica_layer.Pass(); | |
| 616 replica_layer_id_ = new_layer_id; | |
| 617 if (replica_layer_) | |
| 618 replica_layer_->set_parent(this); | |
| 619 NoteLayerPropertyChangedForSubtree(); | |
| 620 } | |
| 621 | |
| 622 scoped_ptr<LayerImpl> LayerImpl::TakeReplicaLayer() { | |
| 623 replica_layer_id_ = -1; | |
| 624 return replica_layer_.Pass(); | |
| 625 } | |
| 626 | |
| 627 ScrollbarLayerImpl* LayerImpl::ToScrollbarLayer() { | |
| 628 return NULL; | |
| 629 } | |
| 630 | |
| 631 void LayerImpl::SetDrawsContent(bool draws_content) { | |
| 632 if (draws_content_ == draws_content) | |
| 633 return; | |
| 634 | |
| 635 draws_content_ = draws_content; | |
| 636 NoteLayerPropertyChanged(); | |
| 637 } | |
| 638 | |
| 639 void LayerImpl::SetAnchorPoint(gfx::PointF anchor_point) { | |
| 640 if (anchor_point_ == anchor_point) | |
| 641 return; | |
| 642 | |
| 643 anchor_point_ = anchor_point; | |
| 644 NoteLayerPropertyChangedForSubtree(); | |
| 645 } | |
| 646 | |
| 647 void LayerImpl::SetAnchorPointZ(float anchor_point_z) { | |
| 648 if (anchor_point_z_ == anchor_point_z) | |
| 649 return; | |
| 650 | |
| 651 anchor_point_z_ = anchor_point_z; | |
| 652 NoteLayerPropertyChangedForSubtree(); | |
| 653 } | |
| 654 | |
| 655 void LayerImpl::SetBackgroundColor(SkColor background_color) { | |
| 656 if (background_color_ == background_color) | |
| 657 return; | |
| 658 | |
| 659 background_color_ = background_color; | |
| 660 NoteLayerPropertyChanged(); | |
| 661 } | |
| 662 | |
| 663 void LayerImpl::SetFilters(const WebKit::WebFilterOperations& filters) { | |
| 664 if (filters_ == filters) | |
| 665 return; | |
| 666 | |
| 667 DCHECK(!filter_); | |
| 668 filters_ = filters; | |
| 669 NoteLayerPropertyChangedForSubtree(); | |
| 670 } | |
| 671 | |
| 672 void LayerImpl::SetBackgroundFilters( | |
| 673 const WebKit::WebFilterOperations& filters) { | |
| 674 if (background_filters_ == filters) | |
| 675 return; | |
| 676 | |
| 677 background_filters_ = filters; | |
| 678 NoteLayerPropertyChanged(); | |
| 679 } | |
| 680 | |
| 681 void LayerImpl::SetFilter(const skia::RefPtr<SkImageFilter>& filter) { | |
| 682 if (filter_.get() == filter.get()) | |
| 683 return; | |
| 684 | |
| 685 DCHECK(filters_.isEmpty()); | |
| 686 filter_ = filter; | |
| 687 NoteLayerPropertyChangedForSubtree(); | |
| 688 } | |
| 689 | |
| 690 void LayerImpl::SetMasksToBounds(bool masks_to_bounds) { | |
| 691 if (masks_to_bounds_ == masks_to_bounds) | |
| 692 return; | |
| 693 | |
| 694 masks_to_bounds_ = masks_to_bounds; | |
| 695 NoteLayerPropertyChangedForSubtree(); | |
| 696 } | |
| 697 | |
| 698 void LayerImpl::SetContentsOpaque(bool opaque) { | |
| 699 if (contents_opaque_ == opaque) | |
| 700 return; | |
| 701 | |
| 702 contents_opaque_ = opaque; | |
| 703 NoteLayerPropertyChangedForSubtree(); | |
| 704 } | |
| 705 | |
| 706 void LayerImpl::SetOpacity(float opacity) { | |
| 707 if (opacity_ == opacity) | |
| 708 return; | |
| 709 | |
| 710 opacity_ = opacity; | |
| 711 NoteLayerSurfacePropertyChanged(); | |
| 712 } | |
| 713 | |
| 714 bool LayerImpl::OpacityIsAnimating() const { | |
| 715 return layer_animation_controller_->IsAnimatingProperty(Animation::Opacity); | |
| 716 } | |
| 717 | |
| 718 bool LayerImpl::OpacityIsAnimatingOnImplOnly() const { | |
| 719 Animation* opacity_animation = | |
| 720 layer_animation_controller_->GetAnimation(Animation::Opacity); | |
| 721 return opacity_animation && opacity_animation->is_impl_only(); | |
| 722 } | |
| 723 | |
| 724 void LayerImpl::SetPosition(gfx::PointF position) { | |
| 725 if (position_ == position) | |
| 726 return; | |
| 727 | |
| 728 position_ = position; | |
| 729 NoteLayerPropertyChangedForSubtree(); | |
| 730 } | |
| 731 | |
| 732 void LayerImpl::SetPreserves3d(bool preserves3_d) { | |
| 733 if (preserves_3d_ == preserves3_d) | |
| 734 return; | |
| 735 | |
| 736 preserves_3d_ = preserves3_d; | |
| 737 NoteLayerPropertyChangedForSubtree(); | |
| 738 } | |
| 739 | |
| 740 void LayerImpl::SetSublayerTransform(const gfx::Transform& sublayer_transform) { | |
| 741 if (sublayer_transform_ == sublayer_transform) | |
| 742 return; | |
| 743 | |
| 744 sublayer_transform_ = sublayer_transform; | |
| 745 // Sublayer transform does not affect the current layer; it affects only its | |
| 746 // children. | |
| 747 NoteLayerPropertyChangedForDescendants(); | |
| 748 } | |
| 749 | |
| 750 void LayerImpl::SetTransform(const gfx::Transform& transform) { | |
| 751 if (transform_ == transform) | |
| 752 return; | |
| 753 | |
| 754 transform_ = transform; | |
| 755 NoteLayerSurfacePropertyChanged(); | |
| 756 } | |
| 757 | |
| 758 bool LayerImpl::TransformIsAnimating() const { | |
| 759 return layer_animation_controller_->IsAnimatingProperty(Animation::Transform); | |
| 760 } | |
| 761 | |
| 762 bool LayerImpl::TransformIsAnimatingOnImplOnly() const { | |
| 763 Animation* transform_animation = | |
| 764 layer_animation_controller_->GetAnimation(Animation::Transform); | |
| 765 return transform_animation && transform_animation->is_impl_only(); | |
| 766 } | |
| 767 | |
| 768 void LayerImpl::SetContentBounds(gfx::Size content_bounds) { | |
| 769 if (this->content_bounds() == content_bounds) | |
| 770 return; | |
| 771 | |
| 772 draw_properties_.content_bounds = content_bounds; | |
| 773 NoteLayerPropertyChanged(); | |
| 774 } | |
| 775 | |
| 776 void LayerImpl::SetContentsScale(float contents_scale_x, | |
| 777 float contents_scale_y) { | |
| 778 if (this->contents_scale_x() == contents_scale_x && | |
| 779 this->contents_scale_y() == contents_scale_y) | |
| 780 return; | |
| 781 | |
| 782 draw_properties_.contents_scale_x = contents_scale_x; | |
| 783 draw_properties_.contents_scale_y = contents_scale_y; | |
| 784 NoteLayerPropertyChanged(); | |
| 785 } | |
| 786 | |
| 787 void LayerImpl::CalculateContentsScale( | |
| 788 float ideal_contents_scale, | |
| 789 bool animating_transform_to_screen, | |
| 790 float* contents_scale_x, | |
| 791 float* contents_scale_y, | |
| 792 gfx::Size* content_bounds) { | |
| 793 // Base LayerImpl has all of its content scales and content bounds pushed | |
| 794 // from its Layer during commit and just reuses those values as-is. | |
| 795 *contents_scale_x = this->contents_scale_x(); | |
| 796 *contents_scale_y = this->contents_scale_y(); | |
| 797 *content_bounds = this->content_bounds(); | |
| 798 } | |
| 799 | |
| 800 void LayerImpl::UpdateScrollbarPositions() { | |
| 801 gfx::Vector2dF current_offset = scroll_offset_ + scroll_delta_; | |
| 802 | |
| 803 if (horizontal_scrollbar_layer_) { | |
| 804 horizontal_scrollbar_layer_->SetCurrentPos(current_offset.x()); | |
| 805 horizontal_scrollbar_layer_->SetTotalSize(bounds_.width()); | |
| 806 horizontal_scrollbar_layer_->SetMaximum(max_scroll_offset_.x()); | |
| 807 } | |
| 808 if (vertical_scrollbar_layer_) { | |
| 809 vertical_scrollbar_layer_->SetCurrentPos(current_offset.y()); | |
| 810 vertical_scrollbar_layer_->SetTotalSize(bounds_.height()); | |
| 811 vertical_scrollbar_layer_->SetMaximum(max_scroll_offset_.y()); | |
| 812 } | |
| 813 | |
| 814 if (current_offset == last_scroll_offset_) | |
| 815 return; | |
| 816 last_scroll_offset_ = current_offset; | |
| 817 | |
| 818 if (scrollbar_animation_controller_ && | |
| 819 !scrollbar_animation_controller_->isScrollGestureInProgress()) { | |
| 820 scrollbar_animation_controller_->didProgrammaticallyUpdateScroll( | |
| 821 base::TimeTicks::Now()); | |
| 822 } | |
| 823 | |
| 824 // Get the current_offset_.y() value for a sanity-check on scrolling | |
| 825 // benchmark metrics. Specifically, we want to make sure | |
| 826 // BasicMouseWheelSmoothScrollGesture has proper scroll curves. | |
| 827 if (layer_tree_impl()->IsActiveTree()) { | |
| 828 TRACE_COUNTER_ID1("gpu", "scroll_offset_y", this->id(), current_offset.y()); | |
| 829 } | |
| 830 } | |
| 831 | |
| 832 void LayerImpl::SetScrollOffset(gfx::Vector2d scroll_offset) { | |
| 833 if (scroll_offset_ == scroll_offset) | |
| 834 return; | |
| 835 | |
| 836 scroll_offset_ = scroll_offset; | |
| 837 NoteLayerPropertyChangedForSubtree(); | |
| 838 UpdateScrollbarPositions(); | |
| 839 } | |
| 840 | |
| 841 void LayerImpl::SetScrollDelta(gfx::Vector2dF scroll_delta) { | |
| 842 if (scroll_delta_ == scroll_delta) | |
| 843 return; | |
| 844 | |
| 845 if (layer_tree_impl()->IsActiveTree()) { | |
| 846 LayerImpl* pending_twin = layer_tree_impl()->FindPendingTreeLayerById(id()); | |
| 847 if (pending_twin) { | |
| 848 // The pending twin can't mirror the scroll delta of the active | |
| 849 // layer. Although the delta - sent scroll delta difference is | |
| 850 // identical for both twins, the sent scroll delta for the pending | |
| 851 // layer is zero, as anything that has been sent has been baked | |
| 852 // into the layer's position/scroll offset as a part of commit. | |
| 853 DCHECK(pending_twin->sent_scroll_delta().IsZero()); | |
| 854 pending_twin->SetScrollDelta(scroll_delta - sent_scroll_delta()); | |
| 855 } | |
| 856 } | |
| 857 | |
| 858 scroll_delta_ = scroll_delta; | |
| 859 NoteLayerPropertyChangedForSubtree(); | |
| 860 | |
| 861 UpdateScrollbarPositions(); | |
| 862 } | |
| 863 | |
| 864 gfx::Vector2dF LayerImpl::TotalScrollOffset() const { | |
| 865 return scroll_offset_ + scroll_delta_; | |
| 866 } | |
| 867 | |
| 868 void LayerImpl::SetImplTransform(const gfx::Transform& transform) { | |
| 869 if (impl_transform_ == transform) | |
| 870 return; | |
| 871 | |
| 872 impl_transform_ = transform; | |
| 873 NoteLayerPropertyChangedForSubtree(); | |
| 874 } | |
| 875 | |
| 876 void LayerImpl::SetDoubleSided(bool double_sided) { | |
| 877 if (double_sided_ == double_sided) | |
| 878 return; | |
| 879 | |
| 880 double_sided_ = double_sided; | |
| 881 NoteLayerPropertyChangedForSubtree(); | |
| 882 } | |
| 883 | |
| 884 Region LayerImpl::VisibleContentOpaqueRegion() const { | |
| 885 if (contents_opaque()) | |
| 886 return visible_content_rect(); | |
| 887 return Region(); | |
| 888 } | |
| 889 | |
| 890 void LayerImpl::DidLoseOutputSurface() {} | |
| 891 | |
| 892 void LayerImpl::SetMaxScrollOffset(gfx::Vector2d max_scroll_offset) { | |
| 893 if (max_scroll_offset_ == max_scroll_offset) | |
| 894 return; | |
| 895 max_scroll_offset_ = max_scroll_offset; | |
| 896 | |
| 897 layer_tree_impl()->set_needs_update_draw_properties(); | |
| 898 UpdateScrollbarPositions(); | |
| 899 } | |
| 900 | |
| 901 void LayerImpl::SetScrollbarOpacity(float opacity) { | |
| 902 if (horizontal_scrollbar_layer_) | |
| 903 horizontal_scrollbar_layer_->SetOpacity(opacity); | |
| 904 if (vertical_scrollbar_layer_) | |
| 905 vertical_scrollbar_layer_->SetOpacity(opacity); | |
| 906 } | |
| 907 | |
| 908 inline scoped_ptr<ScrollbarAnimationController> | |
| 909 CreateScrollbarAnimationControllerWithFade(LayerImpl* layer) { | |
| 910 base::TimeDelta fadeout_delay = base::TimeDelta::FromMilliseconds(300); | |
| 911 base::TimeDelta fadeout_length = base::TimeDelta::FromMilliseconds(300); | |
| 912 return ScrollbarAnimationControllerLinearFade::create( | |
| 913 layer, fadeout_delay, fadeout_length) | |
| 914 .PassAs<ScrollbarAnimationController>(); | |
| 915 } | |
| 916 | |
| 917 void LayerImpl::DidBecomeActive() { | |
| 918 if (!layer_tree_impl_->settings().useLinearFadeScrollbarAnimator) | |
| 919 return; | |
| 920 | |
| 921 bool need_scrollbar_animation_controller = horizontal_scrollbar_layer_ || | |
| 922 vertical_scrollbar_layer_; | |
| 923 if (need_scrollbar_animation_controller) { | |
| 924 if (!scrollbar_animation_controller_) { | |
| 925 scrollbar_animation_controller_ = | |
| 926 CreateScrollbarAnimationControllerWithFade(this); | |
| 927 } | |
| 928 } else { | |
| 929 scrollbar_animation_controller_.reset(); | |
| 930 } | |
| 931 | |
| 932 } | |
| 933 void LayerImpl::SetHorizontalScrollbarLayer( | |
| 934 ScrollbarLayerImpl* scrollbar_layer) { | |
| 935 horizontal_scrollbar_layer_ = scrollbar_layer; | |
| 936 if (horizontal_scrollbar_layer_) | |
| 937 horizontal_scrollbar_layer_->set_scroll_layer_id(id()); | |
| 938 } | |
| 939 | |
| 940 void LayerImpl::SetVerticalScrollbarLayer(ScrollbarLayerImpl* scrollbar_layer) { | |
| 941 vertical_scrollbar_layer_ = scrollbar_layer; | |
| 942 if (vertical_scrollbar_layer_) | |
| 943 vertical_scrollbar_layer_->set_scroll_layer_id(id()); | |
| 944 } | |
| 945 | |
| 946 void LayerImpl::AsValueInto(base::DictionaryValue* dict) const { | |
| 947 dict->SetInteger("id", id()); | |
| 948 dict->Set("bounds", MathUtil::AsValue(bounds()).release()); | |
| 949 dict->SetInteger("draws_content", DrawsContent()); | |
| 950 | |
| 951 bool clipped; | |
| 952 gfx::QuadF layer_quad = MathUtil::MapQuad( | |
| 953 screen_space_transform(), | |
| 954 gfx::QuadF(gfx::Rect(content_bounds())), | |
| 955 &clipped); | |
| 956 dict->Set("layer_quad", MathUtil::AsValue(layer_quad).release()); | |
| 957 | |
| 958 } | |
| 959 | |
| 960 scoped_ptr<base::Value> LayerImpl::AsValue() const { | |
| 961 scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue()); | |
| 962 AsValueInto(state.get()); | |
| 963 return state.PassAs<base::Value>(); | |
| 964 } | |
| 965 | |
| 966 } // namespace cc | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 12603013:
Part 10 of cc/ directory shuffles: layers (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src