Remove NonCompositedContentHost -- Take 2

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