Revert "Remove NonCompositedContentHost" and follow-up rebaselining.

Source/WebKit/chromium/src/NonCompositedContentHost.cpp

+/*
+ * 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 APPLE 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 APPLE 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 "config.h"
+
+#include "NonCompositedContentHost.h"
+
+#include "WebViewImpl.h"
+#include "core/page/Settings.h"
+#include "core/platform/graphics/FloatPoint.h"
+#include "core/platform/graphics/FloatRect.h"
+#include "core/platform/graphics/GraphicsLayer.h"
+#include "core/platform/graphics/chromium/GraphicsLayerChromium.h"
+#include <public/WebContentLayer.h>
+#include <public/WebFloatPoint.h>
+
+namespace WebKit {
+
+NonCompositedContentHost::NonCompositedContentHost(WebViewImpl* webView, WebCore::GraphicsLayerFactory* graphicsLayerFactory)
+    : m_webView(webView)
+    , m_showDebugBorders(false)
+{
+    m_graphicsLayer = WebCore::GraphicsLayer::create(graphicsLayerFactory, this);
+#ifndef NDEBUG
+    m_graphicsLayer->setName("non-composited content");
+#endif
+    m_graphicsLayer->setDrawsContent(true);
+    m_graphicsLayer->setContentsOpaque(true);
+    // FIXME: Remove LCD text setting after it is implemented in chromium.
+    WebContentLayer* layer = static_cast<WebCore::GraphicsLayerChromium*>(m_graphicsLayer.get())->contentLayer();
+    layer->setUseLCDText(true);
+#if !OS(ANDROID)
+    layer->setDrawCheckerboardForMissingTiles(true);
+#endif
+}
+
+NonCompositedContentHost::~NonCompositedContentHost()
+{
+}
+
+void NonCompositedContentHost::setBackgroundColor(const WebCore::Color& color)
+{
+    m_graphicsLayer->platformLayer()->setBackgroundColor(color.rgb());
+}
+
+void NonCompositedContentHost::setOpaque(bool opaque)
+{
+    m_graphicsLayer->setContentsOpaque(opaque);
+}
+
+void NonCompositedContentHost::setScrollLayer(WebCore::GraphicsLayer* layer)
+{
+    m_graphicsLayer->setNeedsDisplay();
+
+    if (!layer) {
+        m_graphicsLayer->removeFromParent();
+        return;
+    }
+
+    if (layer->platformLayer() == scrollLayer())
+        return;
+
+    layer->addChildAtIndex(m_graphicsLayer.get(), 0);
+    ASSERT(haveScrollLayer());
+}
+
+void NonCompositedContentHost::setViewport(const WebCore::IntSize& viewportSize, const WebCore::IntSize& contentsSize, const WebCore::IntPoint& scrollPosition, const WebCore::IntPoint& scrollOrigin)
+{
+    if (!haveScrollLayer())
+        return;
+
+    bool visibleRectChanged = m_viewportSize != viewportSize;
+
+    m_viewportSize = viewportSize;
+    WebLayer* layer = scrollLayer();
+    layer->setScrollPosition(scrollPosition + scrollOrigin);
+    layer->setPosition(WebFloatPoint(-scrollPosition));
+    // Due to the possibility of pinch zoom, the noncomposited layer is always
+    // assumed to be scrollable.
+    layer->setScrollable(true);
+    m_graphicsLayer->setSize(contentsSize);
+
+    // In RTL-style pages, the origin of the initial containing block for the
+    // root layer may be positive; translate the layer to avoid negative
+    // coordinates.
+    m_layerAdjust = -toIntSize(scrollOrigin);
+    if (m_graphicsLayer->transform().m41() != m_layerAdjust.width() || m_graphicsLayer->transform().m42() != m_layerAdjust.height()) {
+        WebCore::TransformationMatrix transform = m_graphicsLayer->transform();
+        transform.setM41(m_layerAdjust.width());
+        transform.setM42(m_layerAdjust.height());
+        m_graphicsLayer->setTransform(transform);
+
+        // If a tiled layer is shifted left or right, the content that goes into
+        // each tile will change. Invalidate the entire layer when this happens.
+        m_graphicsLayer->setNeedsDisplay();
+    } else if (visibleRectChanged)
+        m_graphicsLayer->setNeedsDisplay();
+}
+
+bool NonCompositedContentHost::haveScrollLayer()
+{
+    return m_graphicsLayer->parent();
+}
+
+WebLayer* NonCompositedContentHost::scrollLayer()
+{
+    if (!m_graphicsLayer->parent())
+        return 0;
+    return m_graphicsLayer->parent()->platformLayer();
+}
+
+void NonCompositedContentHost::invalidateRect(const WebCore::IntRect& rect)
+{
+    WebCore::IntRect layerRect = rect;
+    layerRect.move(-m_layerAdjust);
+    m_graphicsLayer->setNeedsDisplayInRect(WebCore::FloatRect(layerRect));
+}
+
+void NonCompositedContentHost::notifyAnimationStarted(const WebCore::GraphicsLayer*, double /* time */)
+{
+    // Intentionally left empty since we don't support animations on the non-composited content.
+}
+
+void NonCompositedContentHost::paintContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext& context, WebCore::GraphicsLayerPaintingPhase, const WebCore::IntRect& clipRect)
+{
+    context.translate(-m_layerAdjust);
+    WebCore::IntRect adjustedClipRect = clipRect;
+    adjustedClipRect.move(m_layerAdjust);
+    m_webView->paintRootLayer(context, adjustedClipRect);
+}
+
+void NonCompositedContentHost::setShowDebugBorders(bool showDebugBorders)
+{
+    m_showDebugBorders = showDebugBorders;
+    m_graphicsLayer->updateDebugIndicators();
+}
+
+bool NonCompositedContentHost::isTrackingRepaints() const
+{
+    return m_webView->isTrackingRepaints();
+}
+
+} // namespace WebKit