| /* |
| * Copyright (C) 2011 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. |
| * OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "third_party/blink/renderer/core/frame/frame_overlay.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "base/memory/ptr_util.h" |
| #include "cc/layers/picture_layer.h" |
| #include "third_party/blink/renderer/core/frame/local_frame.h" |
| #include "third_party/blink/renderer/core/frame/visual_viewport.h" |
| #include "third_party/blink/renderer/core/frame/web_frame_widget_base.h" |
| #include "third_party/blink/renderer/core/frame/web_local_frame_impl.h" |
| #include "third_party/blink/renderer/core/page/page.h" |
| #include "third_party/blink/renderer/core/page/scrolling/scrolling_coordinator.h" |
| #include "third_party/blink/renderer/platform/graphics/graphics_context.h" |
| #include "third_party/blink/renderer/platform/graphics/graphics_layer.h" |
| #include "third_party/blink/renderer/platform/graphics/graphics_layer_client.h" |
| #include "third_party/blink/renderer/platform/graphics/paint/paint_record_builder.h" |
| #include "third_party/blink/renderer/platform/scroll/main_thread_scrolling_reason.h" |
| |
| namespace blink { |
| |
| std::unique_ptr<FrameOverlay> FrameOverlay::Create( |
| LocalFrame* local_frame, |
| std::unique_ptr<FrameOverlay::Delegate> delegate) { |
| return base::WrapUnique(new FrameOverlay(local_frame, std::move(delegate))); |
| } |
| |
| FrameOverlay::FrameOverlay(LocalFrame* local_frame, |
| std::unique_ptr<FrameOverlay::Delegate> delegate) |
| : frame_(local_frame), delegate_(std::move(delegate)) { |
| DCHECK(frame_); |
| } |
| |
| FrameOverlay::~FrameOverlay() { |
| if (RuntimeEnabledFeatures::CompositeAfterPaintEnabled()) |
| return; |
| if (!layer_) |
| return; |
| layer_->RemoveFromParent(); |
| layer_ = nullptr; |
| } |
| |
| void FrameOverlay::Update() { |
| if (RuntimeEnabledFeatures::CompositeAfterPaintEnabled()) { |
| delegate_->Invalidate(); |
| return; |
| } |
| |
| auto* local_root_frame_widget = |
| WebLocalFrameImpl::FromFrame(frame_)->LocalRootFrameWidget(); |
| if (!local_root_frame_widget->IsAcceleratedCompositingActive()) |
| return; |
| |
| if (!layer_) { |
| GraphicsLayer* parent_layer = |
| frame_->IsMainFrame() |
| ? frame_->GetPage()->GetVisualViewport().ContainerLayer() |
| : local_root_frame_widget->RootGraphicsLayer(); |
| if (!parent_layer) |
| return; |
| |
| layer_ = GraphicsLayer::Create(*this); |
| layer_->SetDrawsContent(true); |
| parent_layer->AddChild(layer_.get()); |
| |
| // This is required for contents of overlay to stay in sync with the page |
| // while scrolling. |
| cc::Layer* cc_layer = layer_->CcLayer(); |
| cc_layer->AddMainThreadScrollingReasons( |
| MainThreadScrollingReason::kFrameOverlay); |
| |
| layer_->SetLayerState(PropertyTreeState::Root(), IntPoint()); |
| } |
| |
| layer_->SetSize(gfx::Size(Size())); |
| layer_->SetNeedsDisplay(); |
| } |
| |
| IntSize FrameOverlay::Size() const { |
| return frame_->GetPage()->GetVisualViewport().Size(); |
| } |
| |
| LayoutRect FrameOverlay::VisualRect() const { |
| return LayoutRect(IntPoint(), Size()); |
| } |
| |
| IntRect FrameOverlay::ComputeInterestRect(const GraphicsLayer* graphics_layer, |
| const IntRect&) const { |
| DCHECK(!RuntimeEnabledFeatures::CompositeAfterPaintEnabled()); |
| return IntRect(IntPoint(), Size()); |
| } |
| |
| void FrameOverlay::PaintContents(const GraphicsLayer* graphics_layer, |
| GraphicsContext& gc, |
| GraphicsLayerPaintingPhase phase, |
| const IntRect& interest_rect) const { |
| DCHECK(!RuntimeEnabledFeatures::CompositeAfterPaintEnabled()); |
| DCHECK(layer_); |
| delegate_->PaintFrameOverlay(*this, gc, Size()); |
| } |
| |
| String FrameOverlay::DebugName(const GraphicsLayer*) const { |
| DCHECK(!RuntimeEnabledFeatures::CompositeAfterPaintEnabled()); |
| return "Frame Overlay Content Layer"; |
| } |
| |
| void FrameOverlay::Paint(GraphicsContext& context) { |
| DCHECK(RuntimeEnabledFeatures::CompositeAfterPaintEnabled()); |
| delegate_->PaintFrameOverlay(*this, context, Size()); |
| } |
| |
| } // namespace blink |