bool RenderThemeWinCE::paintMediaPlayButton(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r)
{
bool rc = paintButton(o, paintInfo, r);
FloatRect imRect = r;
imRect.inflate(-3);
paintInfo.context->save();
paintInfo.context->setStrokeColor(Color::black);
paintInfo.context->setFillColor(Color::black);
HTMLMediaElement* mediaElement = mediaElementParent(o->node());
bool paused = !mediaElement || mediaElement->paused();
if (paused) {
float width = imRect.width();
imRect.setWidth(width / 3.0);
paintInfo.context->fillRect(imRect);
imRect.move(2.0 * width / 3.0, 0);
paintInfo.context->fillRect(imRect);
} else {
FloatPoint pts[3] = { FloatPoint(imRect.x(), imRect.y()), FloatPoint(imRect.maxX(), (imRect.y() + imRect.maxY()) / 2.0), FloatPoint(imRect.x(), imRect.maxY()) };
paintInfo.context->drawConvexPolygon(3, pts);
}
paintInfo.context->restore();
return rc;
}
void ImageBuffer::drawPattern(GraphicsContext* context, const FloatRect& srcRect, const AffineTransform& patternTransform,
const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& dstRect)
{
if (m_data.m_tiledImage && context != m_context.get()) {
FloatRect src = srcRect;
if (src.width() == -1)
src.setWidth(m_data.m_tiledImage->size().width());
if (src.height() == -1)
src.setHeight(m_data.m_tiledImage->size().height());
ASSERT(context->platformContext()->activePainter());
AffineTransform phasedPatternTransform;
phasedPatternTransform.translate(phase.x(), phase.y());
phasedPatternTransform.multLeft(patternTransform);
PatternOpenVG pattern(m_data.m_tiledImage, src);
pattern.setTransformation(phasedPatternTransform);
PainterOpenVG* painter = context->platformContext()->activePainter();
PaintOpenVG currentPaint = painter->fillPaint();
CompositeOperator currentOp = painter->compositeOperation();
painter->setCompositeOperation(op);
painter->setFillPattern(pattern);
painter->drawRect(dstRect, VG_FILL_PATH);
painter->setFillPaint(currentPaint);
painter->setCompositeOperation(currentOp);
return;
}
RefPtr<Image> imageCopy = copyImage();
imageCopy->drawPattern(context, srcRect, patternTransform, phase, styleColorSpace, op, dstRect);
}
FloatRect GraphicsContext::roundToDevicePixels(const FloatRect& frect, RoundingMode)
{
FloatRect result;
double x = frect.x();
double y = frect.y();
cairo_t* cr = platformContext()->cr();
cairo_user_to_device(cr, &x, &y);
x = round(x);
y = round(y);
cairo_device_to_user(cr, &x, &y);
result.setX(narrowPrecisionToFloat(x));
result.setY(narrowPrecisionToFloat(y));
// We must ensure width and height are at least 1 (or -1) when
// we're given float values in the range between 0 and 1 (or -1 and 0).
double width = frect.width();
double height = frect.height();
cairo_user_to_device_distance(cr, &width, &height);
if (width > -1 && width < 0)
width = -1;
else if (width > 0 && width < 1)
width = 1;
else
width = round(width);
if (height > -1 && width < 0)
height = -1;
else if (height > 0 && height < 1)
height = 1;
else
height = round(height);
cairo_device_to_user_distance(cr, &width, &height);
result.setWidth(narrowPrecisionToFloat(width));
result.setHeight(narrowPrecisionToFloat(height));
return result;
}
void Gradient::adjustParametersForTiledDrawing(FloatSize& size, FloatRect& srcRect, const FloatSize& spacing)
{
if (m_radial)
return;
if (srcRect.isEmpty())
return;
if (!spacing.isZero())
return;
if (m_p0.x() == m_p1.x()) {
size.setWidth(1);
srcRect.setWidth(1);
srcRect.setX(0);
return;
}
if (m_p0.y() != m_p1.y())
return;
size.setHeight(1);
srcRect.setHeight(1);
srcRect.setY(0);
}
void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& destRect, const FloatRect& srcRect, ColorSpace styleColorSpace, CompositeOperator compositeOp)
{
startAnimation();
RetainPtr<CGImageRef> image = frameAtIndex(m_currentFrame);
if (!image) // If it's too early we won't have an image yet.
return;
if (mayFillWithSolidColor()) {
fillWithSolidColor(ctxt, destRect, solidColor(), styleColorSpace, compositeOp);
return;
}
float currHeight = CGImageGetHeight(image.get());
if (currHeight <= srcRect.y())
return;
CGContextRef context = ctxt->platformContext();
ctxt->save();
bool shouldUseSubimage = false;
// If the source rect is a subportion of the image, then we compute an inflated destination rect that will hold the entire image
// and then set a clip to the portion that we want to display.
FloatRect adjustedDestRect = destRect;
FloatSize selfSize = currentFrameSize();
if (srcRect.size() != selfSize) {
CGInterpolationQuality interpolationQuality = CGContextGetInterpolationQuality(context);
// When the image is scaled using high-quality interpolation, we create a temporary CGImage
// containing only the portion we want to display. We need to do this because high-quality
// interpolation smoothes sharp edges, causing pixels from outside the source rect to bleed
// into the destination rect. See <rdar://problem/6112909>.
shouldUseSubimage = (interpolationQuality == kCGInterpolationHigh || interpolationQuality == kCGInterpolationDefault) && (srcRect.size() != destRect.size() || !ctxt->getCTM().isIdentityOrTranslationOrFlipped());
float xScale = srcRect.width() / destRect.width();
float yScale = srcRect.height() / destRect.height();
if (shouldUseSubimage) {
FloatRect subimageRect = srcRect;
float leftPadding = srcRect.x() - floorf(srcRect.x());
float topPadding = srcRect.y() - floorf(srcRect.y());
subimageRect.move(-leftPadding, -topPadding);
adjustedDestRect.move(-leftPadding / xScale, -topPadding / yScale);
subimageRect.setWidth(ceilf(subimageRect.width() + leftPadding));
adjustedDestRect.setWidth(subimageRect.width() / xScale);
subimageRect.setHeight(ceilf(subimageRect.height() + topPadding));
adjustedDestRect.setHeight(subimageRect.height() / yScale);
image.adoptCF(CGImageCreateWithImageInRect(image.get(), subimageRect));
if (currHeight < srcRect.bottom()) {
ASSERT(CGImageGetHeight(image.get()) == currHeight - CGRectIntegral(srcRect).origin.y);
adjustedDestRect.setHeight(CGImageGetHeight(image.get()) / yScale);
}
} else {
adjustedDestRect.setLocation(FloatPoint(destRect.x() - srcRect.x() / xScale, destRect.y() - srcRect.y() / yScale));
adjustedDestRect.setSize(FloatSize(selfSize.width() / xScale, selfSize.height() / yScale));
}
CGContextClipToRect(context, destRect);
}
// If the image is only partially loaded, then shrink the destination rect that we're drawing into accordingly.
if (!shouldUseSubimage && currHeight < selfSize.height())
adjustedDestRect.setHeight(adjustedDestRect.height() * currHeight / selfSize.height());
ctxt->setCompositeOperation(compositeOp);
// Flip the coords.
CGContextScaleCTM(context, 1, -1);
adjustedDestRect.setY(-adjustedDestRect.bottom());
// Adjust the color space.
image = imageWithColorSpace(image.get(), styleColorSpace);
// Draw the image.
CGContextDrawImage(context, adjustedDestRect, image.get());
ctxt->restore();
if (imageObserver())
imageObserver()->didDraw(this);
}
void ShadowBlur::drawRectShadowWithTiling(GraphicsContext* graphicsContext, const FloatRect& shadowedRect, const RoundedIntRect::Radii& radii, const IntSize& shadowTemplateSize)
{
const float roundedRadius = ceilf(m_blurRadius);
const float twiceRadius = roundedRadius * 2;
// Size of the tiling side.
const int templateSideLength = 1;
m_layerImage = ScratchBuffer::shared().getScratchBuffer(shadowTemplateSize);
// Draw shadow into a new ImageBuffer.
GraphicsContext* shadowContext = m_layerImage->context();
shadowContext->save();
shadowContext->clearRect(FloatRect(0, 0, shadowTemplateSize.width(), shadowTemplateSize.height()));
// Draw the rectangle.
FloatRect templateRect = FloatRect(roundedRadius, roundedRadius, shadowTemplateSize.width() - twiceRadius, shadowTemplateSize.height() - twiceRadius);
Path path;
path.addRoundedRect(templateRect, radii.topLeft(), radii.topRight(), radii.bottomLeft(), radii.bottomRight());
shadowContext->setFillColor(Color(.0f, .0f, .0f, 1.f), ColorSpaceDeviceRGB);
shadowContext->fillPath(path);
// Blur the image.
{
IntRect blurRect(IntPoint(), shadowTemplateSize);
RefPtr<ByteArray> layerData = m_layerImage->getUnmultipliedImageData(blurRect);
blurLayerImage(layerData->data(), blurRect.size(), blurRect.width() * 4);
m_layerImage->putUnmultipliedImageData(layerData.get(), blurRect.size(), blurRect, IntPoint());
}
// Mask the image with the shadow color.
shadowContext->setCompositeOperation(CompositeSourceIn);
shadowContext->setFillColor(m_color, m_colorSpace);
shadowContext->fillRect(FloatRect(0, 0, shadowTemplateSize.width(), shadowTemplateSize.height()));
shadowContext->restore();
FloatRect shadowRect = shadowedRect;
shadowRect.inflate(roundedRadius); // FIXME: duplicating code with calculateLayerBoundingRect.
shadowRect.move(m_offset.width(), m_offset.height());
// Fill the internal part of the shadow.
shadowRect.inflate(-twiceRadius);
if (!shadowRect.isEmpty()) {
graphicsContext->save();
path.clear();
path.addRoundedRect(shadowRect, radii.topLeft(), radii.topRight(), radii.bottomLeft(), radii.bottomRight());
graphicsContext->setFillColor(m_color, m_colorSpace);
graphicsContext->fillPath(path);
graphicsContext->restore();
}
shadowRect.inflate(twiceRadius);
// Note that drawing the ImageBuffer is faster than creating a Image and drawing that,
// because ImageBuffer::draw() knows that it doesn't have to copy the image bits.
// Draw top side.
FloatRect tileRect = FloatRect(twiceRadius + radii.topLeft().width(), 0, templateSideLength, twiceRadius);
FloatRect destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y());
destRect.setWidth(shadowRect.width() - radii.topLeft().width() - radii.topRight().width() - roundedRadius * 4);
graphicsContext->drawImageBuffer(m_layerImage, ColorSpaceDeviceRGB, destRect, tileRect);
// Draw the bottom side.
tileRect = FloatRect(twiceRadius + radii.bottomLeft().width(), shadowTemplateSize.height() - twiceRadius, templateSideLength, twiceRadius);
destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y() + twiceRadius + shadowedRect.height() - shadowTemplateSize.height());
destRect.setWidth(shadowRect.width() - radii.bottomLeft().width() - radii.bottomRight().width() - roundedRadius * 4);
graphicsContext->drawImageBuffer(m_layerImage, ColorSpaceDeviceRGB, destRect, tileRect);
// Draw the right side.
tileRect = FloatRect(shadowTemplateSize.width() - twiceRadius, twiceRadius + radii.topRight().height(), twiceRadius, templateSideLength);
destRect = tileRect;
destRect.move(shadowRect.x() + twiceRadius + shadowedRect.width() - shadowTemplateSize.width(), shadowRect.y());
destRect.setHeight(shadowRect.height() - radii.topRight().height() - radii.bottomRight().height() - roundedRadius * 4);
graphicsContext->drawImageBuffer(m_layerImage, ColorSpaceDeviceRGB, destRect, tileRect);
// Draw the left side.
tileRect = FloatRect(0, twiceRadius + radii.topLeft().height(), twiceRadius, templateSideLength);
destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y());
destRect.setHeight(shadowRect.height() - radii.topLeft().height() - radii.bottomLeft().height() - roundedRadius * 4);
graphicsContext->drawImageBuffer(m_layerImage, ColorSpaceDeviceRGB, destRect, tileRect);
// Draw the top left corner.
tileRect = FloatRect(0, 0, twiceRadius + radii.topLeft().width(), twiceRadius + radii.topLeft().height());
destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y());
graphicsContext->drawImageBuffer(m_layerImage, ColorSpaceDeviceRGB, destRect, tileRect);
// Draw the top right corner.
tileRect = FloatRect(shadowTemplateSize.width() - twiceRadius - radii.topRight().width(), 0, twiceRadius + radii.topRight().width(),
twiceRadius + radii.topRight().height());
destRect = tileRect;
destRect.move(shadowRect.x() + shadowedRect.width() - shadowTemplateSize.width() + twiceRadius, shadowRect.y());
graphicsContext->drawImageBuffer(m_layerImage, ColorSpaceDeviceRGB, destRect, tileRect);
// Draw the bottom right corner.
tileRect = FloatRect(shadowTemplateSize.width() - twiceRadius - radii.bottomRight().width(),
shadowTemplateSize.height() - twiceRadius - radii.bottomRight().height(),
twiceRadius + radii.bottomRight().width(), twiceRadius + radii.bottomRight().height());
destRect = tileRect;
destRect.move(shadowRect.x() + shadowedRect.width() - shadowTemplateSize.width() + twiceRadius,
shadowRect.y() + shadowedRect.height() - shadowTemplateSize.height() + twiceRadius);
graphicsContext->drawImageBuffer(m_layerImage, ColorSpaceDeviceRGB, destRect, tileRect);
// Draw the bottom left corner.
tileRect = FloatRect(0, shadowTemplateSize.height() - twiceRadius - radii.bottomLeft().height(),
twiceRadius + radii.bottomLeft().width(), twiceRadius + radii.bottomLeft().height());
destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y() + shadowedRect.height() - shadowTemplateSize.height() + twiceRadius);
graphicsContext->drawImageBuffer(m_layerImage, ColorSpaceDeviceRGB, destRect, tileRect);
m_layerImage = 0;
// Schedule a purge of the scratch buffer.
ScratchBuffer::shared().scheduleScratchBufferPurge();
}
static Frame* createWindow(Frame* openerFrame, Frame* lookupFrame, const FrameLoadRequest& request, const WindowFeatures& features, bool& created)
{
ASSERT(!features.dialog || request.frameName().isEmpty());
if (!request.frameName().isEmpty() && request.frameName() != "_blank") {
if (Frame* frame = lookupFrame->loader()->findFrameForNavigation(request.frameName(), openerFrame->document())) {
if (request.frameName() != "_self") {
if (Page* page = frame->page())
page->chrome().focus();
}
created = false;
return frame;
}
}
// Sandboxed frames cannot open new auxiliary browsing contexts.
if (openerFrame->document()->isSandboxed(SandboxPopups)) {
// FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
openerFrame->document()->addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Blocked opening '" + request.resourceRequest().url().elidedString() + "' in a new window because the request was made in a sandboxed frame whose 'allow-popups' permission is not set.");
return 0;
}
// FIXME: Setting the referrer should be the caller's responsibility.
FrameLoadRequest requestWithReferrer = request;
String referrer = SecurityPolicy::generateReferrerHeader(openerFrame->document()->referrerPolicy(), request.resourceRequest().url(), openerFrame->loader()->outgoingReferrer());
if (!referrer.isEmpty())
requestWithReferrer.resourceRequest().setHTTPReferrer(referrer);
FrameLoader::addHTTPOriginIfNeeded(requestWithReferrer.resourceRequest(), openerFrame->loader()->outgoingOrigin());
if (openerFrame->settings() && !openerFrame->settings()->supportsMultipleWindows()) {
created = false;
return openerFrame->tree()->top();
}
Page* oldPage = openerFrame->page();
if (!oldPage)
return 0;
NavigationAction action(requestWithReferrer.resourceRequest());
Page* page = oldPage->chrome().client()->createWindow(openerFrame, requestWithReferrer, features, action);
if (!page)
return 0;
Frame* frame = page->mainFrame();
frame->loader()->forceSandboxFlags(openerFrame->document()->sandboxFlags());
if (request.frameName() != "_blank")
frame->tree()->setName(request.frameName());
page->chrome().setWindowFeatures(features);
// 'x' and 'y' specify the location of the window, while 'width' and 'height'
// specify the size of the viewport. We can only resize the window, so adjust
// for the difference between the window size and the viewport size.
FloatRect windowRect = page->chrome().windowRect();
FloatSize viewportSize = page->chrome().pageRect().size();
if (features.xSet)
windowRect.setX(features.x);
if (features.ySet)
windowRect.setY(features.y);
if (features.widthSet)
windowRect.setWidth(features.width + (windowRect.width() - viewportSize.width()));
if (features.heightSet)
windowRect.setHeight(features.height + (windowRect.height() - viewportSize.height()));
// Ensure non-NaN values, minimum size as well as being within valid screen area.
FloatRect newWindowRect = DOMWindow::adjustWindowRect(page, windowRect);
page->chrome().setWindowRect(newWindowRect);
page->chrome().show();
created = true;
return frame;
}
FloatRect TileController::computeTileCoverageRect(const FloatSize& newSize, const FloatRect& previousVisibleRect, const FloatRect& visibleRect, float contentsScale) const
{
// If the page is not in a window (for example if it's in a background tab), we limit the tile coverage rect to the visible rect.
if (!m_isInWindow)
return visibleRect;
#if PLATFORM(IOS)
// FIXME: unify the iOS and Mac code.
UNUSED_PARAM(previousVisibleRect);
if (m_tileCoverage == CoverageForVisibleArea || MemoryPressureHandler::singleton().isUnderMemoryPressure())
return visibleRect;
double horizontalMargin = tileSize().width() / contentsScale;
double verticalMargin = tileSize().height() / contentsScale;
double currentTime = monotonicallyIncreasingTime();
double timeDelta = currentTime - m_velocity.lastUpdateTime;
FloatRect futureRect = visibleRect;
futureRect.setLocation(FloatPoint(
futureRect.location().x() + timeDelta * m_velocity.horizontalVelocity,
futureRect.location().y() + timeDelta * m_velocity.verticalVelocity));
if (m_velocity.horizontalVelocity) {
futureRect.setWidth(futureRect.width() + horizontalMargin);
if (m_velocity.horizontalVelocity < 0)
futureRect.setX(futureRect.x() - horizontalMargin);
}
if (m_velocity.verticalVelocity) {
futureRect.setHeight(futureRect.height() + verticalMargin);
if (m_velocity.verticalVelocity < 0)
futureRect.setY(futureRect.y() - verticalMargin);
}
if (!m_velocity.horizontalVelocity && !m_velocity.verticalVelocity) {
if (m_velocity.scaleChangeRate > 0)
return visibleRect;
futureRect.setWidth(futureRect.width() + horizontalMargin);
futureRect.setHeight(futureRect.height() + verticalMargin);
futureRect.setX(futureRect.x() - horizontalMargin / 2);
futureRect.setY(futureRect.y() - verticalMargin / 2);
}
// Can't use m_tileCacheLayer->bounds() here, because the size of the underlying platform layer
// hasn't been updated for the current commit.
IntSize contentSize = expandedIntSize(newSize);
if (futureRect.maxX() > contentSize.width())
futureRect.setX(contentSize.width() - futureRect.width());
if (futureRect.maxY() > contentSize.height())
futureRect.setY(contentSize.height() - futureRect.height());
if (futureRect.x() < 0)
futureRect.setX(0);
if (futureRect.y() < 0)
futureRect.setY(0);
return futureRect;
#else
UNUSED_PARAM(contentsScale);
// FIXME: look at how far the document can scroll in each dimension.
float coverageHorizontalSize = visibleRect.width();
float coverageVerticalSize = visibleRect.height();
bool largeVisibleRectChange = !previousVisibleRect.isEmpty() && !visibleRect.intersects(previousVisibleRect);
// Inflate the coverage rect so that it covers 2x of the visible width and 3x of the visible height.
// These values were chosen because it's more common to have tall pages and to scroll vertically,
// so we keep more tiles above and below the current area.
if (m_tileCoverage & CoverageForHorizontalScrolling && !largeVisibleRectChange)
coverageHorizontalSize *= 2;
if (m_tileCoverage & CoverageForVerticalScrolling && !largeVisibleRectChange)
coverageVerticalSize *= 3;
coverageVerticalSize += topMarginHeight() + bottomMarginHeight();
coverageHorizontalSize += leftMarginWidth() + rightMarginWidth();
// Can't use m_tileCacheLayer->bounds() here, because the size of the underlying platform layer
// hasn't been updated for the current commit.
FloatRect coverageBounds = boundsForSize(newSize);
float coverageLeft = visibleRect.x() - (coverageHorizontalSize - visibleRect.width()) / 2;
coverageLeft = std::min(coverageLeft, coverageBounds.maxX() - coverageHorizontalSize);
coverageLeft = std::max(coverageLeft, coverageBounds.x());
float coverageTop = visibleRect.y() - (coverageVerticalSize - visibleRect.height()) / 2;
coverageTop = std::min(coverageTop, coverageBounds.maxY() - coverageVerticalSize);
coverageTop = std::max(coverageTop, coverageBounds.y());
return FloatRect(coverageLeft, coverageTop, coverageHorizontalSize, coverageVerticalSize);
#endif
}
FloatRect RenderSVGResourceFilterPrimitive::determineFilterPrimitiveSubregion(FilterEffect* effect, SVGFilter* filter)
{
FloatRect uniteRect;
FloatRect subregionBoundingBox = effect->effectBoundaries();
FloatRect subregion = subregionBoundingBox;
if (effect->filterEffectType() != FilterEffectTypeTile) {
// FETurbulence, FEImage and FEFlood don't have input effects, take the filter region as unite rect.
if (unsigned numberOfInputEffects = effect->inputEffects().size()) {
for (unsigned i = 0; i < numberOfInputEffects; ++i)
uniteRect.unite(determineFilterPrimitiveSubregion(effect->inputEffect(i), filter));
} else
uniteRect = filter->filterRegionInUserSpace();
} else {
determineFilterPrimitiveSubregion(effect->inputEffect(0), filter);
uniteRect = filter->filterRegionInUserSpace();
}
if (filter->effectBoundingBoxMode()) {
subregion = uniteRect;
// Avoid the calling of a virtual method several times.
FloatRect targetBoundingBox = filter->targetBoundingBox();
if (effect->hasX())
subregion.setX(targetBoundingBox.x() + subregionBoundingBox.x() * targetBoundingBox.width());
if (effect->hasY())
subregion.setY(targetBoundingBox.y() + subregionBoundingBox.y() * targetBoundingBox.height());
if (effect->hasWidth())
subregion.setWidth(subregionBoundingBox.width() * targetBoundingBox.width());
if (effect->hasHeight())
subregion.setHeight(subregionBoundingBox.height() * targetBoundingBox.height());
} else {
if (!effect->hasX())
subregion.setX(uniteRect.x());
if (!effect->hasY())
subregion.setY(uniteRect.y());
if (!effect->hasWidth())
subregion.setWidth(uniteRect.width());
if (!effect->hasHeight())
subregion.setHeight(uniteRect.height());
}
effect->setFilterPrimitiveSubregion(subregion);
FloatRect absoluteSubregion = filter->mapLocalRectToAbsoluteRect(subregion);
FloatSize filterResolution = filter->filterResolution();
absoluteSubregion.scale(filterResolution.width(), filterResolution.height());
// FEImage needs the unclipped subregion in absolute coordinates to determine the correct
// destination rect in combination with preserveAspectRatio.
if (effect->filterEffectType() == FilterEffectTypeImage)
reinterpret_cast<FEImage*>(effect)->setAbsoluteSubregion(absoluteSubregion);
// Clip every filter effect to the filter region.
FloatRect absoluteScaledFilterRegion = filter->filterRegion();
absoluteScaledFilterRegion.scale(filterResolution.width(), filterResolution.height());
absoluteSubregion.intersect(absoluteScaledFilterRegion);
effect->setMaxEffectRect(enclosingIntRect(absoluteSubregion));
return subregion;
}
void TileController::adjustTileCoverageRect(FloatRect& coverageRect, const FloatSize& newSize, const FloatRect& previousVisibleRect, const FloatRect& visibleRect, float contentsScale) const
{
// If the page is not in a window (for example if it's in a background tab), we limit the tile coverage rect to the visible rect.
if (!m_isInWindow) {
coverageRect = visibleRect;
return;
}
#if PLATFORM(IOS)
// FIXME: unify the iOS and Mac code.
UNUSED_PARAM(previousVisibleRect);
if (m_tileCoverage == CoverageForVisibleArea || MemoryPressureHandler::singleton().isUnderMemoryPressure()) {
coverageRect = visibleRect;
return;
}
double horizontalMargin = kDefaultTileSize / contentsScale;
double verticalMargin = kDefaultTileSize / contentsScale;
double currentTime = monotonicallyIncreasingTime();
double timeDelta = currentTime - m_velocity.lastUpdateTime;
FloatRect futureRect = visibleRect;
futureRect.setLocation(FloatPoint(
futureRect.location().x() + timeDelta * m_velocity.horizontalVelocity,
futureRect.location().y() + timeDelta * m_velocity.verticalVelocity));
if (m_velocity.horizontalVelocity) {
futureRect.setWidth(futureRect.width() + horizontalMargin);
if (m_velocity.horizontalVelocity < 0)
futureRect.setX(futureRect.x() - horizontalMargin);
}
if (m_velocity.verticalVelocity) {
futureRect.setHeight(futureRect.height() + verticalMargin);
if (m_velocity.verticalVelocity < 0)
futureRect.setY(futureRect.y() - verticalMargin);
}
if (!m_velocity.horizontalVelocity && !m_velocity.verticalVelocity) {
if (m_velocity.scaleChangeRate > 0) {
coverageRect = visibleRect;
return;
}
futureRect.setWidth(futureRect.width() + horizontalMargin);
futureRect.setHeight(futureRect.height() + verticalMargin);
futureRect.setX(futureRect.x() - horizontalMargin / 2);
futureRect.setY(futureRect.y() - verticalMargin / 2);
}
// Can't use m_tileCacheLayer->bounds() here, because the size of the underlying platform layer
// hasn't been updated for the current commit.
IntSize contentSize = expandedIntSize(newSize);
if (futureRect.maxX() > contentSize.width())
futureRect.setX(contentSize.width() - futureRect.width());
if (futureRect.maxY() > contentSize.height())
futureRect.setY(contentSize.height() - futureRect.height());
if (futureRect.x() < 0)
futureRect.setX(0);
if (futureRect.y() < 0)
futureRect.setY(0);
coverageRect.unite(futureRect);
return;
#else
UNUSED_PARAM(contentsScale);
// FIXME: look at how far the document can scroll in each dimension.
FloatSize coverageSize = visibleRect.size();
bool largeVisibleRectChange = !previousVisibleRect.isEmpty() && !visibleRect.intersects(previousVisibleRect);
// Inflate the coverage rect so that it covers 2x of the visible width and 3x of the visible height.
// These values were chosen because it's more common to have tall pages and to scroll vertically,
// so we keep more tiles above and below the current area.
float widthScale = 1;
float heightScale = 1;
if (m_tileCoverage & CoverageForHorizontalScrolling && !largeVisibleRectChange)
widthScale = 2;
if (m_tileCoverage & CoverageForVerticalScrolling && !largeVisibleRectChange)
heightScale = 3;
coverageSize.scale(widthScale, heightScale);
FloatRect coverageBounds = boundsForSize(newSize);
FloatRect coverage = expandRectWithinRect(visibleRect, coverageSize, coverageBounds);
LOG_WITH_STREAM(Scrolling, stream << "TileController::computeTileCoverageRect newSize=" << newSize << " mode " << m_tileCoverage << " expanded to " << coverageSize << " bounds with margin " << coverageBounds << " coverage " << coverage);
coverageRect.unite(coverage);
#endif
}
void alignSelectionRectToDevicePixels(FloatRect& rect)
{
float maxX = floorf(rect.maxX());
rect.setX(floorf(rect.x()));
rect.setWidth(roundf(maxX - rect.x()));
}
static LocalFrame* createWindow(LocalFrame& openerFrame, LocalFrame& lookupFrame, const FrameLoadRequest& request, const WindowFeatures& features, NavigationPolicy policy, ShouldSendReferrer shouldSendReferrer, bool& created)
{
ASSERT(!features.dialog || request.frameName().isEmpty());
if (!request.frameName().isEmpty() && request.frameName() != "_blank" && policy == NavigationPolicyIgnore) {
if (LocalFrame* frame = lookupFrame.loader().findFrameForNavigation(request.frameName(), openerFrame.document())) {
if (request.frameName() != "_self")
frame->page()->focusController().setFocusedFrame(frame);
created = false;
return frame;
}
}
// Sandboxed frames cannot open new auxiliary browsing contexts.
if (openerFrame.document()->isSandboxed(SandboxPopups)) {
// FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
openerFrame.document()->addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Blocked opening '" + request.resourceRequest().url().elidedString() + "' in a new window because the request was made in a sandboxed frame whose 'allow-popups' permission is not set.");
return 0;
}
if (openerFrame.settings() && !openerFrame.settings()->supportsMultipleWindows()) {
created = false;
return openerFrame.tree().top();
}
Page* oldPage = openerFrame.page();
if (!oldPage)
return 0;
Page* page = oldPage->chrome().client().createWindow(&openerFrame, request, features, policy, shouldSendReferrer);
if (!page)
return 0;
FrameHost* host = &page->frameHost();
ASSERT(page->mainFrame());
LocalFrame& frame = *page->mainFrame();
if (request.frameName() != "_blank")
frame.tree().setName(request.frameName());
host->chrome().setWindowFeatures(features);
// 'x' and 'y' specify the location of the window, while 'width' and 'height'
// specify the size of the viewport. We can only resize the window, so adjust
// for the difference between the window size and the viewport size.
FloatRect windowRect = host->chrome().windowRect();
FloatSize viewportSize = host->chrome().pageRect().size();
if (features.xSet)
windowRect.setX(features.x);
if (features.ySet)
windowRect.setY(features.y);
if (features.widthSet)
windowRect.setWidth(features.width + (windowRect.width() - viewportSize.width()));
if (features.heightSet)
windowRect.setHeight(features.height + (windowRect.height() - viewportSize.height()));
// Ensure non-NaN values, minimum size as well as being within valid screen area.
FloatRect newWindowRect = DOMWindow::adjustWindowRect(frame, windowRect);
host->chrome().setWindowRect(newWindowRect);
host->chrome().show(policy);
created = true;
return &frame;
}
void RenderSVGImage::adjustRectsForAspectRatio(FloatRect& destRect, FloatRect& srcRect, SVGPreserveAspectRatio* aspectRatio)
{
float origDestWidth = destRect.width();
float origDestHeight = destRect.height();
if (aspectRatio->meetOrSlice() == SVGPreserveAspectRatio::SVG_MEETORSLICE_MEET) {
float widthToHeightMultiplier = srcRect.height() / srcRect.width();
if (origDestHeight > (origDestWidth * widthToHeightMultiplier)) {
destRect.setHeight(origDestWidth * widthToHeightMultiplier);
switch(aspectRatio->align()) {
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMINYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMID:
destRect.setY(destRect.y() + origDestHeight / 2.0f - destRect.height() / 2.0f);
break;
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMINYMAX:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMAX:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMAX:
destRect.setY(destRect.y() + origDestHeight - destRect.height());
break;
}
}
if (origDestWidth > (origDestHeight / widthToHeightMultiplier)) {
destRect.setWidth(origDestHeight / widthToHeightMultiplier);
switch(aspectRatio->align()) {
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMIN:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMAX:
destRect.setX(destRect.x() + origDestWidth / 2.0f - destRect.width() / 2.0f);
break;
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMIN:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMAX:
destRect.setX(destRect.x() + origDestWidth - destRect.width());
break;
}
}
} else if (aspectRatio->meetOrSlice() == SVGPreserveAspectRatio::SVG_MEETORSLICE_SLICE) {
float widthToHeightMultiplier = srcRect.height() / srcRect.width();
// if the destination height is less than the height of the image we'll be drawing
if (origDestHeight < (origDestWidth * widthToHeightMultiplier)) {
float destToSrcMultiplier = srcRect.width() / destRect.width();
srcRect.setHeight(destRect.height() * destToSrcMultiplier);
switch(aspectRatio->align()) {
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMINYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMID:
srcRect.setY(destRect.y() + image()->height() / 2.0f - srcRect.height() / 2.0f);
break;
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMINYMAX:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMAX:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMAX:
srcRect.setY(destRect.y() + image()->height() - srcRect.height());
break;
}
}
// if the destination width is less than the width of the image we'll be drawing
if (origDestWidth < (origDestHeight / widthToHeightMultiplier)) {
float destToSrcMultiplier = srcRect.height() / destRect.height();
srcRect.setWidth(destRect.width() * destToSrcMultiplier);
switch(aspectRatio->align()) {
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMIN:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMAX:
srcRect.setX(destRect.x() + image()->width() / 2.0f - srcRect.width() / 2.0f);
break;
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMIN:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMAX:
srcRect.setX(destRect.x() + image()->width() - srcRect.width());
break;
}
}
}
}
void Image::drawTiled(GraphicsContext& ctxt, const FloatRect& destRect, const FloatPoint& srcPoint, const FloatSize& scaledTileSize, const FloatSize& spacing, CompositeOperator op, BlendMode blendMode)
{
if (mayFillWithSolidColor()) {
fillWithSolidColor(ctxt, destRect, solidColor(), op);
return;
}
ASSERT(!isBitmapImage() || notSolidColor());
#if PLATFORM(IOS)
FloatSize intrinsicTileSize = originalSize();
#else
FloatSize intrinsicTileSize = size();
#endif
if (hasRelativeWidth())
intrinsicTileSize.setWidth(scaledTileSize.width());
if (hasRelativeHeight())
intrinsicTileSize.setHeight(scaledTileSize.height());
FloatSize scale(scaledTileSize.width() / intrinsicTileSize.width(),
scaledTileSize.height() / intrinsicTileSize.height());
FloatRect oneTileRect;
FloatSize actualTileSize(scaledTileSize.width() + spacing.width(), scaledTileSize.height() + spacing.height());
oneTileRect.setX(destRect.x() + fmodf(fmodf(-srcPoint.x(), actualTileSize.width()) - actualTileSize.width(), actualTileSize.width()));
oneTileRect.setY(destRect.y() + fmodf(fmodf(-srcPoint.y(), actualTileSize.height()) - actualTileSize.height(), actualTileSize.height()));
oneTileRect.setSize(scaledTileSize);
// Check and see if a single draw of the image can cover the entire area we are supposed to tile.
if (oneTileRect.contains(destRect) && !ctxt.drawLuminanceMask()) {
FloatRect visibleSrcRect;
visibleSrcRect.setX((destRect.x() - oneTileRect.x()) / scale.width());
visibleSrcRect.setY((destRect.y() - oneTileRect.y()) / scale.height());
visibleSrcRect.setWidth(destRect.width() / scale.width());
visibleSrcRect.setHeight(destRect.height() / scale.height());
draw(ctxt, destRect, visibleSrcRect, op, blendMode, ImageOrientationDescription());
return;
}
#if PLATFORM(IOS)
// When using accelerated drawing on iOS, it's faster to stretch an image than to tile it.
if (ctxt.isAcceleratedContext()) {
if (size().width() == 1 && intersection(oneTileRect, destRect).height() == destRect.height()) {
FloatRect visibleSrcRect;
visibleSrcRect.setX(0);
visibleSrcRect.setY((destRect.y() - oneTileRect.y()) / scale.height());
visibleSrcRect.setWidth(1);
visibleSrcRect.setHeight(destRect.height() / scale.height());
draw(ctxt, destRect, visibleSrcRect, op, BlendModeNormal, ImageOrientationDescription());
return;
}
if (size().height() == 1 && intersection(oneTileRect, destRect).width() == destRect.width()) {
FloatRect visibleSrcRect;
visibleSrcRect.setX((destRect.x() - oneTileRect.x()) / scale.width());
visibleSrcRect.setY(0);
visibleSrcRect.setWidth(destRect.width() / scale.width());
visibleSrcRect.setHeight(1);
draw(ctxt, destRect, visibleSrcRect, op, BlendModeNormal, ImageOrientationDescription());
return;
}
}
#endif
// Patterned images and gradients can use lots of memory for caching when the
// tile size is large (<rdar://problem/4691859>, <rdar://problem/6239505>).
// Memory consumption depends on the transformed tile size which can get
// larger than the original tile if user zooms in enough.
#if PLATFORM(IOS)
const float maxPatternTilePixels = 512 * 512;
#else
const float maxPatternTilePixels = 2048 * 2048;
#endif
FloatRect transformedTileSize = ctxt.getCTM().mapRect(FloatRect(FloatPoint(), scaledTileSize));
float transformedTileSizePixels = transformedTileSize.width() * transformedTileSize.height();
FloatRect currentTileRect = oneTileRect;
if (transformedTileSizePixels > maxPatternTilePixels) {
GraphicsContextStateSaver stateSaver(ctxt);
ctxt.clip(destRect);
currentTileRect.shiftYEdgeTo(destRect.y());
float toY = currentTileRect.y();
while (toY < destRect.maxY()) {
currentTileRect.shiftXEdgeTo(destRect.x());
float toX = currentTileRect.x();
while (toX < destRect.maxX()) {
FloatRect toRect(toX, toY, currentTileRect.width(), currentTileRect.height());
FloatRect fromRect(toFloatPoint(currentTileRect.location() - oneTileRect.location()), currentTileRect.size());
fromRect.scale(1 / scale.width(), 1 / scale.height());
draw(ctxt, toRect, fromRect, op, BlendModeNormal, ImageOrientationDescription());
toX += currentTileRect.width();
currentTileRect.shiftXEdgeTo(oneTileRect.x());
}
toY += currentTileRect.height();
currentTileRect.shiftYEdgeTo(oneTileRect.y());
}
return;
}
AffineTransform patternTransform = AffineTransform().scaleNonUniform(scale.width(), scale.height());
FloatRect tileRect(FloatPoint(), intrinsicTileSize);
drawPattern(ctxt, tileRect, patternTransform, oneTileRect.location(), spacing, op, destRect, blendMode);
#if PLATFORM(IOS)
startAnimation(DoNotCatchUp);
#else
startAnimation();
#endif
}
void SVGPreserveAspectRatio::transformRect(FloatRect& destRect, FloatRect& srcRect)
{
if (m_align == SVG_PRESERVEASPECTRATIO_NONE)
return;
FloatSize imageSize = srcRect.size();
float origDestWidth = destRect.width();
float origDestHeight = destRect.height();
switch (m_meetOrSlice) {
case SVGPreserveAspectRatio::SVG_MEETORSLICE_UNKNOWN:
break;
case SVGPreserveAspectRatio::SVG_MEETORSLICE_MEET: {
float widthToHeightMultiplier = srcRect.height() / srcRect.width();
if (origDestHeight > origDestWidth * widthToHeightMultiplier) {
destRect.setHeight(origDestWidth * widthToHeightMultiplier);
switch (m_align) {
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMINYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMID:
destRect.setY(destRect.y() + origDestHeight / 2 - destRect.height() / 2);
break;
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMINYMAX:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMAX:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMAX:
destRect.setY(destRect.y() + origDestHeight - destRect.height());
break;
default:
break;
}
}
if (origDestWidth > origDestHeight / widthToHeightMultiplier) {
destRect.setWidth(origDestHeight / widthToHeightMultiplier);
switch (m_align) {
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMIN:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMAX:
destRect.setX(destRect.x() + origDestWidth / 2 - destRect.width() / 2);
break;
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMIN:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMAX:
destRect.setX(destRect.x() + origDestWidth - destRect.width());
break;
default:
break;
}
}
break;
}
case SVGPreserveAspectRatio::SVG_MEETORSLICE_SLICE: {
float widthToHeightMultiplier = srcRect.height() / srcRect.width();
// if the destination height is less than the height of the image we'll be drawing
if (origDestHeight < origDestWidth * widthToHeightMultiplier) {
float destToSrcMultiplier = srcRect.width() / destRect.width();
srcRect.setHeight(destRect.height() * destToSrcMultiplier);
switch (m_align) {
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMINYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMID:
srcRect.setY(srcRect.y() + imageSize.height() / 2 - srcRect.height() / 2);
break;
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMINYMAX:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMAX:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMAX:
srcRect.setY(srcRect.y() + imageSize.height() - srcRect.height());
break;
default:
break;
}
}
// if the destination width is less than the width of the image we'll be drawing
if (origDestWidth < origDestHeight / widthToHeightMultiplier) {
float destToSrcMultiplier = srcRect.height() / destRect.height();
srcRect.setWidth(destRect.width() * destToSrcMultiplier);
switch (m_align) {
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMIN:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMIDYMAX:
srcRect.setX(srcRect.x() + imageSize.width() / 2 - srcRect.width() / 2);
break;
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMIN:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMID:
case SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_XMAXYMAX:
srcRect.setX(srcRect.x() + imageSize.width() - srcRect.width());
break;
default:
break;
}
}
break;
}
}
}
void PlatformContextCairo::drawSurfaceToContext(cairo_surface_t* surface, const FloatRect& destRect, const FloatRect& originalSrcRect, GraphicsContext* context)
{
FloatRect srcRect = originalSrcRect;
// We need to account for negative source dimensions by flipping the rectangle.
if (originalSrcRect.width() < 0) {
srcRect.setX(originalSrcRect.x() + originalSrcRect.width());
srcRect.setWidth(std::fabs(originalSrcRect.width()));
}
if (originalSrcRect.height() < 0) {
srcRect.setY(originalSrcRect.y() + originalSrcRect.height());
srcRect.setHeight(std::fabs(originalSrcRect.height()));
}
// Cairo subsurfaces don't support floating point boundaries well, so we expand the rectangle.
IntRect expandedSrcRect(enclosingIntRect(srcRect));
// We use a subsurface here so that we don't end up sampling outside the originalSrcRect rectangle.
// See https://bugs.webkit.org/show_bug.cgi?id=58309
RefPtr<cairo_surface_t> subsurface = adoptRef(cairo_surface_create_for_rectangle(
surface, expandedSrcRect.x(), expandedSrcRect.y(), expandedSrcRect.width(), expandedSrcRect.height()));
RefPtr<cairo_pattern_t> pattern = adoptRef(cairo_pattern_create_for_surface(subsurface.get()));
ASSERT(m_state);
switch (m_state->m_imageInterpolationQuality) {
case InterpolationNone:
case InterpolationLow:
cairo_pattern_set_filter(pattern.get(), CAIRO_FILTER_FAST);
break;
case InterpolationMedium:
case InterpolationHigh:
cairo_pattern_set_filter(pattern.get(), CAIRO_FILTER_BILINEAR);
break;
case InterpolationDefault:
cairo_pattern_set_filter(pattern.get(), CAIRO_FILTER_BILINEAR);
break;
}
cairo_pattern_set_extend(pattern.get(), CAIRO_EXTEND_PAD);
// The pattern transformation properly scales the pattern for when the source rectangle is a
// different size than the destination rectangle. We also account for any offset we introduced
// by expanding floating point source rectangle sizes. It's important to take the absolute value
// of the scale since the original width and height might be negative.
float scaleX = std::fabs(srcRect.width() / destRect.width());
float scaleY = std::fabs(srcRect.height() / destRect.height());
float leftPadding = static_cast<float>(expandedSrcRect.x()) - floorf(srcRect.x());
float topPadding = static_cast<float>(expandedSrcRect.y()) - floorf(srcRect.y());
cairo_matrix_t matrix = { scaleX, 0, 0, scaleY, leftPadding, topPadding };
cairo_pattern_set_matrix(pattern.get(), &matrix);
ShadowBlur& shadow = context->platformContext()->shadowBlur();
if (shadow.type() != ShadowBlur::NoShadow) {
if (GraphicsContext* shadowContext = shadow.beginShadowLayer(context, destRect)) {
drawPatternToCairoContext(shadowContext->platformContext()->cr(), pattern.get(), destRect, 1);
shadow.endShadowLayer(context);
}
}
cairo_save(m_cr.get());
drawPatternToCairoContext(m_cr.get(), pattern.get(), destRect, globalAlpha());
cairo_restore(m_cr.get());
}
void RenderTheme::paintSliderTicks(RenderObject* o, const PaintInfo& paintInfo, const IntRect& rect)
{
Node* node = o->node();
if (!node)
return;
HTMLInputElement* input = node->toInputElement();
if (!input)
return;
HTMLDataListElement* dataList = static_cast<HTMLDataListElement*>(input->list());
if (!dataList)
return;
double min = input->minimum();
double max = input->maximum();
ControlPart part = o->style()->appearance();
// We don't support ticks on alternate sliders like MediaVolumeSliders.
if (part != SliderHorizontalPart && part != SliderVerticalPart)
return;
bool isHorizontal = part == SliderHorizontalPart;
IntSize thumbSize;
RenderObject* thumbRenderer = input->sliderThumbElement()->renderer();
if (thumbRenderer) {
RenderStyle* thumbStyle = thumbRenderer->style();
int thumbWidth = thumbStyle->width().intValue();
int thumbHeight = thumbStyle->height().intValue();
thumbSize.setWidth(isHorizontal ? thumbWidth : thumbHeight);
thumbSize.setHeight(isHorizontal ? thumbHeight : thumbWidth);
}
IntSize tickSize = sliderTickSize();
float zoomFactor = o->style()->effectiveZoom();
FloatRect tickRect;
int tickRegionSideMargin = 0;
int tickRegionWidth = 0;
IntRect trackBounds;
RenderObject* trackRenderer = input->sliderTrackElement()->renderer();
// We can ignoring transforms because transform is handled by the graphics context.
if (trackRenderer)
trackBounds = trackRenderer->absoluteBoundingBoxRectIgnoringTransforms();
IntRect sliderBounds = o->absoluteBoundingBoxRectIgnoringTransforms();
// Make position relative to the transformed ancestor element.
trackBounds.setX(trackBounds.x() - sliderBounds.x() + rect.x());
trackBounds.setY(trackBounds.y() - sliderBounds.y() + rect.y());
if (isHorizontal) {
tickRect.setWidth(floor(tickSize.width() * zoomFactor));
tickRect.setHeight(floor(tickSize.height() * zoomFactor));
tickRect.setY(floor(rect.y() + rect.height() / 2.0 + sliderTickOffsetFromTrackCenter() * zoomFactor));
tickRegionSideMargin = trackBounds.x() + (thumbSize.width() - tickSize.width() * zoomFactor) / 2.0;
tickRegionWidth = trackBounds.width() - thumbSize.width();
} else {
tickRect.setWidth(floor(tickSize.height() * zoomFactor));
tickRect.setHeight(floor(tickSize.width() * zoomFactor));
tickRect.setX(floor(rect.x() + rect.width() / 2.0 + sliderTickOffsetFromTrackCenter() * zoomFactor));
tickRegionSideMargin = trackBounds.y() + (thumbSize.width() - tickSize.width() * zoomFactor) / 2.0;
tickRegionWidth = trackBounds.height() - thumbSize.width();
}
RefPtr<HTMLCollection> options = dataList->options();
GraphicsContextStateSaver stateSaver(*paintInfo.context);
paintInfo.context->setFillColor(o->style()->visitedDependentColor(CSSPropertyColor), ColorSpaceDeviceRGB);
for (unsigned i = 0; Node* node = options->item(i); i++) {
ASSERT(node->hasTagName(optionTag));
HTMLOptionElement* optionElement = toHTMLOptionElement(node);
String value = optionElement->value();
if (!input->isValidValue(value))
continue;
double parsedValue = parseToDoubleForNumberType(input->sanitizeValue(value));
double tickFraction = (parsedValue - min) / (max - min);
double tickRatio = isHorizontal && o->style()->isLeftToRightDirection() ? tickFraction : 1.0 - tickFraction;
double tickPosition = round(tickRegionSideMargin + tickRegionWidth * tickRatio);
if (isHorizontal)
tickRect.setX(tickPosition);
else
tickRect.setY(tickPosition);
paintInfo.context->fillRect(tickRect);
}
}
/*
This function uses tiling to improve the performance of the shadow
drawing of rounded rectangles. The code basically does the following
steps:
1. Calculate the size of the shadow template, a rectangle that
contains all the necessary tiles to draw the complete shadow.
2. If that size is smaller than the real rectangle render the new
template rectangle and its shadow in a new surface, in other case
render the shadow of the real rectangle in the destination
surface.
3. Calculate the sizes and positions of the tiles and their
destinations and use drawPattern to render the final shadow. The
code divides the rendering in 8 tiles:
1 | 2 | 3
-----------
4 | | 5
-----------
6 | 7 | 8
The corners are directly copied from the template rectangle to the
real one and the side tiles are 1 pixel width, we use them as
tiles to cover the destination side. The corner tiles are bigger
than just the side of the rounded corner, we need to increase it
because the modifications caused by the corner over the blur
effect. We fill the central part with solid color to complete the
shadow.
*/
void ContextShadow::drawRectShadow(GraphicsContext* context, const IntRect& rect, const IntSize& topLeftRadius, const IntSize& topRightRadius, const IntSize& bottomLeftRadius, const IntSize& bottomRightRadius)
{
float radiusTwice = m_blurDistance * 2;
// Find the space the corners need inside the rect for its shadows.
int internalShadowWidth = radiusTwice + max(topLeftRadius.width(), bottomLeftRadius.width()) +
max(topRightRadius.width(), bottomRightRadius.width());
int internalShadowHeight = radiusTwice + max(topLeftRadius.height(), topRightRadius.height()) +
max(bottomLeftRadius.height(), bottomRightRadius.height());
cairo_t* cr = context->platformContext()->cr();
float globalAlpha = context->platformContext()->globalAlpha();
// drawShadowedRect still does not work with rotations.
// https://bugs.webkit.org/show_bug.cgi?id=45042
if ((!context->getCTM().isIdentityOrTranslationOrFlipped()) || (internalShadowWidth > rect.width())
|| (internalShadowHeight > rect.height()) || (m_type != BlurShadow)) {
drawRectShadowWithoutTiling(context, rect, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius, globalAlpha);
return;
}
// Calculate size of the template shadow buffer.
IntSize shadowBufferSize = IntSize(rect.width() + radiusTwice, rect.height() + radiusTwice);
// Determine dimensions of shadow rect.
FloatRect shadowRect = FloatRect(rect.location(), shadowBufferSize);
shadowRect.move(- m_blurDistance, - m_blurDistance);
// Size of the tiling side.
int sideTileWidth = 1;
// The length of a side of the buffer is the enough space for four blur radii,
// the radii of the corners, and then 1 pixel to draw the side tiles.
IntSize shadowTemplateSize = IntSize(sideTileWidth + radiusTwice + internalShadowWidth,
sideTileWidth + radiusTwice + internalShadowHeight);
// Reduce the size of what we have to draw with the clip area.
double x1, x2, y1, y2;
cairo_clip_extents(cr, &x1, &y1, &x2, &y2);
calculateLayerBoundingRect(context, shadowRect, IntRect(x1, y1, x2 - x1, y2 - y1));
if ((shadowTemplateSize.width() * shadowTemplateSize.height() > m_sourceRect.width() * m_sourceRect.height())) {
drawRectShadowWithoutTiling(context, rect, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius, globalAlpha);
return;
}
shadowRect.move(m_offset.width(), m_offset.height());
m_layerImage = getScratchBuffer(shadowTemplateSize);
// Draw shadow into a new ImageBuffer.
m_layerContext = cairo_create(m_layerImage);
// Clear the surface first.
cairo_set_operator(m_layerContext, CAIRO_OPERATOR_CLEAR);
cairo_paint(m_layerContext);
cairo_set_operator(m_layerContext, CAIRO_OPERATOR_OVER);
// Draw the rectangle.
IntRect templateRect = IntRect(m_blurDistance, m_blurDistance, shadowTemplateSize.width() - radiusTwice, shadowTemplateSize.height() - radiusTwice);
Path path;
path.addRoundedRect(templateRect, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
appendWebCorePathToCairoContext(m_layerContext, path);
cairo_set_source_rgba(m_layerContext, 0, 0, 0, globalAlpha);
cairo_fill(m_layerContext);
// Blur the image.
cairo_surface_flush(m_layerImage);
blurLayerImage(cairo_image_surface_get_data(m_layerImage), shadowTemplateSize, cairo_image_surface_get_stride(m_layerImage));
cairo_surface_mark_dirty(m_layerImage);
// Mask the image with the shadow color.
cairo_set_operator(m_layerContext, CAIRO_OPERATOR_IN);
setSourceRGBAFromColor(m_layerContext, m_color);
cairo_paint(m_layerContext);
cairo_destroy(m_layerContext);
m_layerContext = 0;
// Fill the internal part of the shadow.
shadowRect.inflate(-radiusTwice);
if (!shadowRect.isEmpty()) {
cairo_save(cr);
path.clear();
path.addRoundedRect(shadowRect, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
appendWebCorePathToCairoContext(cr, path);
setSourceRGBAFromColor(cr, m_color);
cairo_fill(cr);
cairo_restore(cr);
}
shadowRect.inflate(radiusTwice);
// Draw top side.
FloatRect tileRect = FloatRect(radiusTwice + topLeftRadius.width(), 0, sideTileWidth, radiusTwice);
FloatRect destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y());
destRect.setWidth(shadowRect.width() - topLeftRadius.width() - topRightRadius.width() - m_blurDistance * 4);
FloatPoint phase = getPhase(destRect, tileRect);
AffineTransform patternTransform;
patternTransform.makeIdentity();
drawPatternToCairoContext(cr, m_layerImage, shadowTemplateSize, tileRect, patternTransform, phase, CAIRO_OPERATOR_OVER, destRect);
// Draw the bottom side.
tileRect = FloatRect(radiusTwice + bottomLeftRadius.width(), shadowTemplateSize.height() - radiusTwice, sideTileWidth, radiusTwice);
destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y() + radiusTwice + rect.height() - shadowTemplateSize.height());
destRect.setWidth(shadowRect.width() - bottomLeftRadius.width() - bottomRightRadius.width() - m_blurDistance * 4);
phase = getPhase(destRect, tileRect);
drawPatternToCairoContext(cr, m_layerImage, shadowTemplateSize, tileRect, patternTransform, phase, CAIRO_OPERATOR_OVER, destRect);
// Draw the right side.
tileRect = FloatRect(shadowTemplateSize.width() - radiusTwice, radiusTwice + topRightRadius.height(), radiusTwice, sideTileWidth);
destRect = tileRect;
destRect.move(shadowRect.x() + radiusTwice + rect.width() - shadowTemplateSize.width(), shadowRect.y());
destRect.setHeight(shadowRect.height() - topRightRadius.height() - bottomRightRadius.height() - m_blurDistance * 4);
phase = getPhase(destRect, tileRect);
drawPatternToCairoContext(cr, m_layerImage, shadowTemplateSize, tileRect, patternTransform, phase, CAIRO_OPERATOR_OVER, destRect);
// Draw the left side.
tileRect = FloatRect(0, radiusTwice + topLeftRadius.height(), radiusTwice, sideTileWidth);
destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y());
destRect.setHeight(shadowRect.height() - topLeftRadius.height() - bottomLeftRadius.height() - m_blurDistance * 4);
phase = FloatPoint(destRect.x() - tileRect.x(), destRect.y() - tileRect.y());
drawPatternToCairoContext(cr, m_layerImage, shadowTemplateSize, tileRect, patternTransform, phase, CAIRO_OPERATOR_OVER, destRect);
// Draw the top left corner.
tileRect = FloatRect(0, 0, radiusTwice + topLeftRadius.width(), radiusTwice + topLeftRadius.height());
destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y());
phase = getPhase(destRect, tileRect);
drawPatternToCairoContext(cr, m_layerImage, shadowTemplateSize, tileRect, patternTransform, phase, CAIRO_OPERATOR_OVER, destRect);
// Draw the top right corner.
tileRect = FloatRect(shadowTemplateSize.width() - radiusTwice - topRightRadius.width(), 0, radiusTwice + topRightRadius.width(),
radiusTwice + topRightRadius.height());
destRect = tileRect;
destRect.move(shadowRect.x() + rect.width() - shadowTemplateSize.width() + radiusTwice, shadowRect.y());
phase = getPhase(destRect, tileRect);
drawPatternToCairoContext(cr, m_layerImage, shadowTemplateSize, tileRect, patternTransform, phase, CAIRO_OPERATOR_OVER, destRect);
// Draw the bottom right corner.
tileRect = FloatRect(shadowTemplateSize.width() - radiusTwice - bottomRightRadius.width(),
shadowTemplateSize.height() - radiusTwice - bottomRightRadius.height(),
radiusTwice + bottomRightRadius.width(), radiusTwice + bottomRightRadius.height());
destRect = tileRect;
destRect.move(shadowRect.x() + rect.width() - shadowTemplateSize.width() + radiusTwice,
shadowRect.y() + rect.height() - shadowTemplateSize.height() + radiusTwice);
phase = getPhase(destRect, tileRect);
drawPatternToCairoContext(cr, m_layerImage, shadowTemplateSize, tileRect, patternTransform, phase, CAIRO_OPERATOR_OVER, destRect);
// Draw the bottom left corner.
tileRect = FloatRect(0, shadowTemplateSize.height() - radiusTwice - bottomLeftRadius.height(),
radiusTwice + bottomLeftRadius.width(), radiusTwice + bottomLeftRadius.height());
destRect = tileRect;
destRect.move(shadowRect.x(), shadowRect.y() + rect.height() - shadowTemplateSize.height() + radiusTwice);
phase = getPhase(destRect, tileRect);
drawPatternToCairoContext(cr, m_layerImage, shadowTemplateSize, tileRect, patternTransform, phase, CAIRO_OPERATOR_OVER, destRect);
// Schedule a purge of the scratch buffer.
scheduleScratchBufferPurge();
}
void SVGRenderingContext::prepareToRenderSVGContent(RenderElement& renderer, PaintInfo& paintInfo, NeedsGraphicsContextSave needsGraphicsContextSave)
{
#ifndef NDEBUG
// This function must not be called twice!
ASSERT(!(m_renderingFlags & PrepareToRenderSVGContentWasCalled));
m_renderingFlags |= PrepareToRenderSVGContentWasCalled;
#endif
m_renderer = &renderer;
m_paintInfo = &paintInfo;
m_filter = 0;
// We need to save / restore the context even if the initialization failed.
if (needsGraphicsContextSave == SaveGraphicsContext) {
m_paintInfo->context().save();
m_renderingFlags |= RestoreGraphicsContext;
}
auto& style = m_renderer->style();
const SVGRenderStyle& svgStyle = style.svgStyle();
// Setup transparency layers before setting up SVG resources!
bool isRenderingMask = isRenderingMaskImage(*m_renderer);
// RenderLayer takes care of root opacity.
float opacity = (renderer.isSVGRoot() || isRenderingMask) ? 1 : style.opacity();
const ShadowData* shadow = svgStyle.shadow();
bool hasBlendMode = style.hasBlendMode();
bool hasIsolation = style.hasIsolation();
bool isolateMaskForBlending = false;
#if ENABLE(CSS_COMPOSITING)
if (svgStyle.hasMasker() && is<SVGGraphicsElement>(downcast<SVGElement>(*renderer.element()))) {
SVGGraphicsElement& graphicsElement = downcast<SVGGraphicsElement>(*renderer.element());
isolateMaskForBlending = graphicsElement.shouldIsolateBlending();
}
#endif
if (opacity < 1 || shadow || hasBlendMode || isolateMaskForBlending || hasIsolation) {
FloatRect repaintRect = m_renderer->repaintRectInLocalCoordinates();
m_paintInfo->context().clip(repaintRect);
if (opacity < 1 || hasBlendMode || isolateMaskForBlending || hasIsolation) {
if (hasBlendMode)
m_paintInfo->context().setCompositeOperation(m_paintInfo->context().compositeOperation(), style.blendMode());
m_paintInfo->context().beginTransparencyLayer(opacity);
if (hasBlendMode)
m_paintInfo->context().setCompositeOperation(m_paintInfo->context().compositeOperation(), BlendModeNormal);
m_renderingFlags |= EndOpacityLayer;
}
if (shadow) {
m_paintInfo->context().setShadow(IntSize(roundToInt(shadow->x()), roundToInt(shadow->y())), shadow->radius(), shadow->color());
m_paintInfo->context().beginTransparencyLayer(1);
m_renderingFlags |= EndShadowLayer;
}
}
ClipPathOperation* clipPathOperation = style.clipPath();
if (is<ShapeClipPathOperation>(clipPathOperation)) {
auto& clipPath = downcast<ShapeClipPathOperation>(*clipPathOperation);
FloatRect referenceBox;
if (clipPath.referenceBox() == Stroke)
// FIXME: strokeBoundingBox() takes dasharray into account but shouldn't.
referenceBox = renderer.strokeBoundingBox();
else if (clipPath.referenceBox() == ViewBox && renderer.element()) {
FloatSize viewportSize;
SVGLengthContext(downcast<SVGElement>(renderer.element())).determineViewport(viewportSize);
referenceBox.setWidth(viewportSize.width());
referenceBox.setHeight(viewportSize.height());
} else
referenceBox = renderer.objectBoundingBox();
m_paintInfo->context().clipPath(clipPath.pathForReferenceRect(referenceBox), clipPath.windRule());
}
auto* resources = SVGResourcesCache::cachedResourcesForRenderer(*m_renderer);
if (!resources) {
if (style.hasReferenceFilterOnly())
return;
m_renderingFlags |= RenderingPrepared;
return;
}
if (!isRenderingMask) {
if (RenderSVGResourceMasker* masker = resources->masker()) {
GraphicsContext* contextPtr = &m_paintInfo->context();
bool result = masker->applyResource(*m_renderer, style, contextPtr, ApplyToDefaultMode);
m_paintInfo->setContext(*contextPtr);
if (!result)
return;
}
}
RenderSVGResourceClipper* clipper = resources->clipper();
if (!clipPathOperation && clipper) {
GraphicsContext* contextPtr = &m_paintInfo->context();
bool result = clipper->applyResource(*m_renderer, style, contextPtr, ApplyToDefaultMode);
m_paintInfo->setContext(*contextPtr);
if (!result)
return;
}
if (!isRenderingMask) {
m_filter = resources->filter();
if (m_filter) {
m_savedContext = &m_paintInfo->context();
m_savedPaintRect = m_paintInfo->rect;
// Return with false here may mean that we don't need to draw the content
// (because it was either drawn before or empty) but we still need to apply the filter.
m_renderingFlags |= EndFilterLayer;
GraphicsContext* contextPtr = &m_paintInfo->context();
bool result = m_filter->applyResource(*m_renderer, style, contextPtr, ApplyToDefaultMode);
m_paintInfo->setContext(*contextPtr);
if (!result)
return;
// Since we're caching the resulting bitmap and do not invalidate it on repaint rect
// changes, we need to paint the whole filter region. Otherwise, elements not visible
// at the time of the initial paint (due to scrolling, window size, etc.) will never
// be drawn.
m_paintInfo->rect = IntRect(m_filter->drawingRegion(m_renderer));
}
}
m_renderingFlags |= RenderingPrepared;
}
PassOwnPtr<ImageBuffer> SVGMaskElement::drawMaskerContent(const FloatRect& targetRect, FloatRect& maskDestRect) const
{
// Determine specified mask size
if (maskUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
maskDestRect = FloatRect(x().valueAsPercentage() * targetRect.width(),
y().valueAsPercentage() * targetRect.height(),
width().valueAsPercentage() * targetRect.width(),
height().valueAsPercentage() * targetRect.height());
else
maskDestRect = FloatRect(x().value(this),
y().value(this),
width().value(this),
height().value(this));
IntSize imageSize(lroundf(maskDestRect.width()), lroundf(maskDestRect.height()));
clampImageBufferSizeToViewport(document()->view(), imageSize);
if (imageSize.width() < static_cast<int>(maskDestRect.width()))
maskDestRect.setWidth(imageSize.width());
if (imageSize.height() < static_cast<int>(maskDestRect.height()))
maskDestRect.setHeight(imageSize.height());
// FIXME: This changes color space to linearRGB, the default color space
// for masking operations in SVG. We need a switch for the other color-space
// attribute values sRGB, inherit and auto.
OwnPtr<ImageBuffer> maskImage = ImageBuffer::create(imageSize, LinearRGB);
if (!maskImage)
return 0;
FloatPoint maskContextLocation = maskDestRect.location();
if (maskUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
maskDestRect.move(targetRect.x(), targetRect.y());
if (maskContentUnits() != SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
maskContextLocation.move(targetRect.x(), targetRect.y());
GraphicsContext* maskImageContext = maskImage->context();
ASSERT(maskImageContext);
maskImageContext->save();
maskImageContext->translate(-maskContextLocation.x(), -maskContextLocation.y());
if (maskContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
maskImageContext->save();
maskImageContext->scale(FloatSize(targetRect.width(), targetRect.height()));
}
// Render subtree into ImageBuffer
for (Node* n = firstChild(); n; n = n->nextSibling()) {
SVGElement* elem = 0;
if (n->isSVGElement())
elem = static_cast<SVGElement*>(n);
if (!elem || !elem->isStyled())
continue;
SVGStyledElement* e = static_cast<SVGStyledElement*>(elem);
RenderObject* item = e->renderer();
if (!item)
continue;
renderSubtreeToImage(maskImage.get(), item);
}
if (maskContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
maskImageContext->restore();
maskImageContext->restore();
return maskImage.release();
}
