| Index: Source/core/paint/ViewPainter.cpp
|
| diff --git a/Source/core/paint/ViewPainter.cpp b/Source/core/paint/ViewPainter.cpp
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..009d77548f2c3d40b4b1f42d07a651e6e56eb771
|
| --- /dev/null
|
| +++ b/Source/core/paint/ViewPainter.cpp
|
| @@ -0,0 +1,96 @@
|
| +// Copyright 2014 The Chromium Authors. All rights reserved.
|
| +// Use of this source code is governed by a BSD-style license that can be
|
| +// found in the LICENSE file.
|
| +
|
| +#include "config.h"
|
| +#include "core/paint/ViewPainter.h"
|
| +
|
| +#include "core/frame/FrameView.h"
|
| +#include "core/rendering/GraphicsContextAnnotator.h"
|
| +#include "core/rendering/PaintInfo.h"
|
| +#include "core/rendering/RenderBox.h"
|
| +#include "core/rendering/RenderView.h"
|
| +
|
| +namespace blink {
|
| +
|
| +void ViewPainter::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
|
| +{
|
| + // If we ever require layout but receive a paint anyway, something has gone horribly wrong.
|
| + ASSERT(!m_renderView.needsLayout());
|
| + // RenderViews should never be called to paint with an offset not on device pixels.
|
| + ASSERT(LayoutPoint(IntPoint(paintOffset.x(), paintOffset.y())) == paintOffset);
|
| +
|
| + ANNOTATE_GRAPHICS_CONTEXT(paintInfo, &m_renderView);
|
| +
|
| + // This avoids painting garbage between columns if there is a column gap.
|
| + if (m_renderView.frameView() && m_renderView.style()->isOverflowPaged())
|
| + paintInfo.context->fillRect(paintInfo.rect, m_renderView.frameView()->baseBackgroundColor());
|
| +
|
| + m_renderView.paintObject(paintInfo, paintOffset);
|
| +}
|
| +
|
| +static inline bool rendererObscuresBackground(RenderBox* rootBox)
|
| +{
|
| + ASSERT(rootBox);
|
| + RenderStyle* style = rootBox->style();
|
| + if (style->visibility() != VISIBLE
|
| + || style->opacity() != 1
|
| + || style->hasFilter()
|
| + || style->hasTransform())
|
| + return false;
|
| +
|
| + if (rootBox->compositingState() == PaintsIntoOwnBacking)
|
| + return false;
|
| +
|
| + const RenderObject* rootRenderer = rootBox->rendererForRootBackground();
|
| + if (rootRenderer->style()->backgroundClip() == TextFillBox)
|
| + return false;
|
| +
|
| + return true;
|
| +}
|
| +
|
| +void ViewPainter::paintBoxDecorationBackground(PaintInfo& paintInfo)
|
| +{
|
| + if (m_renderView.document().ownerElement() || !m_renderView.view())
|
| + return;
|
| +
|
| + if (paintInfo.skipRootBackground())
|
| + return;
|
| +
|
| + bool shouldPaintBackground = true;
|
| + Node* documentElement = m_renderView.document().documentElement();
|
| + if (RenderBox* rootBox = documentElement ? toRenderBox(documentElement->renderer()) : 0)
|
| + shouldPaintBackground = !rootFillsViewportBackground(rootBox) || !rendererObscuresBackground(rootBox);
|
| +
|
| + // If painting will entirely fill the view, no need to fill the background.
|
| + if (!shouldPaintBackground)
|
| + return;
|
| +
|
| + // This code typically only executes if the root element's visibility has been set to hidden,
|
| + // if there is a transform on the <html>, or if there is a page scale factor less than 1.
|
| + // Only fill with the base background color (typically white) if we're the root document,
|
| + // since iframes/frames with no background in the child document should show the parent's background.
|
| + if (!m_renderView.frameView()->isTransparent()) {
|
| + Color baseColor = m_renderView.frameView()->baseBackgroundColor();
|
| + if (baseColor.alpha()) {
|
| + CompositeOperator previousOperator = paintInfo.context->compositeOperation();
|
| + paintInfo.context->setCompositeOperation(CompositeCopy);
|
| + paintInfo.context->fillRect(paintInfo.rect, baseColor);
|
| + paintInfo.context->setCompositeOperation(previousOperator);
|
| + } else {
|
| + paintInfo.context->clearRect(paintInfo.rect);
|
| + }
|
| + }
|
| +}
|
| +
|
| +bool ViewPainter::rootFillsViewportBackground(RenderBox* rootBox) const
|
| +{
|
| + ASSERT(rootBox);
|
| + // CSS Boxes always fill the viewport background (see paintRootBoxFillLayers)
|
| + if (!rootBox->isSVG())
|
| + return true;
|
| +
|
| + return rootBox->frameRect().contains(m_renderView.frameRect());
|
| +}
|
| +
|
| +} // namespace blink
|
|
|
Chromium Code Reviews
Issue 589283002:
Move painting code from RenderView to ViewPainter. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk