222 lines
6.8 KiB
C++
222 lines
6.8 KiB
C++
/*
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "DisplayLayerController.h"
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#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
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#include "Chrome.h"
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#include "ChromeClient.h"
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#include "DisplayCSSPainter.h"
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#include "DisplayContainerBox.h"
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#include "DisplayPaintingContext.h"
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#include "DisplayTree.h"
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#include "DisplayView.h"
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#include "Frame.h"
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#include "FrameView.h"
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#include "Logging.h"
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#include "Page.h"
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#include "Settings.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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namespace Display {
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LayerController::RootLayerClient::RootLayerClient(LayerController& layerController)
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: m_layerController(layerController)
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{
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}
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void LayerController::RootLayerClient::notifyFlushRequired(const GraphicsLayer*)
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{
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m_layerController.scheduleRenderingUpdate();
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}
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void LayerController::RootLayerClient::paintContents(const GraphicsLayer* layer, GraphicsContext& context, const FloatRect& dirtyRect, GraphicsLayerPaintBehavior)
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{
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ASSERT_UNUSED(layer, layer == m_layerController.contentLayer());
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if (auto* displayTree = m_layerController.view().tree()) {
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PaintingContext paintingContext { context, deviceScaleFactor() };
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CSSPainter::paintTree(*displayTree, paintingContext, enclosingIntRect(dirtyRect));
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}
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}
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float LayerController::RootLayerClient::deviceScaleFactor() const
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{
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return m_layerController.view().deviceScaleFactor();
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}
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LayerController::LayerController(View& view)
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: m_view(view)
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, m_rootLayerClient(*this)
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{
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}
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LayerController::~LayerController() = default;
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void LayerController::prepareForDisplay(Tree& displayTree)
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{
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auto viewSize = displayTree.rootBox().absoluteBorderBoxRect().size();
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// FIXME: Do overflow etc.
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auto contentSize = viewSize;
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LOG_WITH_STREAM(FormattingContextLayout, stream << "LayerController::prepareForDisplay - viewSize " << viewSize << " contentSize " << contentSize);
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ensureRootLayer(viewSize, contentSize);
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// FIXME: For now, repaint the world on every update.
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m_contentLayer->setNeedsDisplay();
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auto& settings = m_view.frame().settings();
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bool showDebugBorders = settings.showDebugBorders();
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bool showRepaintCounter = settings.showRepaintCounter();
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bool acceleratedDrawingEnabled = settings.acceleratedDrawingEnabled();
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m_rootLayer->setShowDebugBorder(showDebugBorders);
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m_contentHostLayer->setShowDebugBorder(showDebugBorders);
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m_contentLayer->setShowDebugBorder(showDebugBorders);
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m_contentLayer->setShowRepaintCounter(showRepaintCounter);
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m_contentLayer->setAcceleratesDrawing(acceleratedDrawingEnabled);
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}
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void LayerController::setNeedsDisplay()
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{
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m_contentLayer->setNeedsDisplay();
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}
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void LayerController::flushLayers()
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{
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if (!m_rootLayer)
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return;
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FloatRect visibleRect = visibleRectForLayerFlushing();
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m_rootLayer->flushCompositingState(visibleRect);
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}
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FloatRect LayerController::visibleRectForLayerFlushing() const
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{
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const auto& frameView = m_view.frameView();
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return frameView.visibleContentRect();
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}
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void LayerController::scheduleRenderingUpdate()
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{
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auto page = m_view.page();
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if (!page)
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return;
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page->scheduleRenderingUpdate(RenderingUpdateStep::LayerFlush);
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}
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void LayerController::ensureRootLayer(FloatSize viewSize, FloatSize contentSize)
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{
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if (m_rootLayer) {
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updateRootLayerGeometry(viewSize, contentSize);
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return;
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}
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setupRootLayerHierarchy();
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updateRootLayerGeometry(viewSize, contentSize);
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attachRootLayer();
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}
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void LayerController::setupRootLayerHierarchy()
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{
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// FIXME: This layer hierarchy is just enough to get topContentInset working.
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m_rootLayer = GraphicsLayer::create(graphicsLayerFactory(), m_rootLayerClient);
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m_rootLayer->setName(MAKE_STATIC_STRING_IMPL("display root"));
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m_rootLayer->setPosition({ });
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m_rootLayer->setAnchorPoint({ });
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m_contentHostLayer = GraphicsLayer::create(graphicsLayerFactory(), m_rootLayerClient);
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m_contentHostLayer->setName(MAKE_STATIC_STRING_IMPL("content host"));
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m_contentHostLayer->setAnchorPoint({ });
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m_contentLayer = GraphicsLayer::create(graphicsLayerFactory(), m_rootLayerClient);
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m_contentLayer->setName(MAKE_STATIC_STRING_IMPL("content"));
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m_contentLayer->setPosition({ });
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m_contentLayer->setAnchorPoint({ });
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m_contentLayer->setDrawsContent(true);
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m_rootLayer->addChild(*m_contentHostLayer);
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m_contentHostLayer->addChild(*m_contentLayer);
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}
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void LayerController::updateRootLayerGeometry(FloatSize viewSize, FloatSize contentSize)
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{
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m_rootLayer->setSize(viewSize);
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float topContentInset = m_view.frameView().topContentInset();
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m_contentHostLayer->setPosition({ 0, topContentInset });
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m_contentHostLayer->setSize(viewSize);
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m_contentLayer->setSize(contentSize);
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}
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void LayerController::attachRootLayer()
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{
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auto page = m_view.page();
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if (!page)
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return;
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page->chrome().client().attachRootGraphicsLayer(m_view.frame(), rootGraphicsLayer());
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}
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void LayerController::detachRootLayer()
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{
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auto page = m_view.page();
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if (!page)
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return;
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page->chrome().client().attachRootGraphicsLayer(m_view.frame(), nullptr);
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}
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void LayerController::setIsInWindow(bool isInWindow)
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{
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if (isInWindow)
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attachRootLayer();
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else
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detachRootLayer();
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}
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GraphicsLayerFactory* LayerController::graphicsLayerFactory() const
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{
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auto page = m_view.page();
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if (!page)
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return nullptr;
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return page->chrome().client().graphicsLayerFactory();
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}
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} // namespace Display
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} // namespace WebCore
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#endif // ENABLE(LAYOUT_FORMATTING_CONTEXT)
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