PassRefPtr<RenderStyle> AnimationController::getAnimatedStyleForRenderer(RenderElement& renderer)
{
if (!renderer.isCSSAnimating())
return &renderer.style();
return m_data->getAnimatedStyleForRenderer(renderer);
}
void RenderSVGResourceFilter::postApplyResource(RenderElement& renderer, GraphicsContext*& context, unsigned short resourceMode, const Path*, const RenderSVGShape*)
{
ASSERT(context);
ASSERT_UNUSED(resourceMode, resourceMode == ApplyToDefaultMode);
FilterData* filterData = m_filter.get(&renderer);
if (!filterData)
return;
switch (filterData->state) {
case FilterData::MarkedForRemoval:
m_filter.remove(&renderer);
return;
case FilterData::CycleDetected:
case FilterData::Applying:
// We have a cycle if we are already applying the data.
// This can occur due to FeImage referencing a source that makes use of the FEImage itself.
// This is the first place we've hit the cycle, so set the state back to PaintingSource so the return stack
// will continue correctly.
filterData->state = FilterData::PaintingSource;
return;
case FilterData::PaintingSource:
if (!filterData->savedContext) {
removeClientFromCache(renderer);
return;
}
context = filterData->savedContext;
filterData->savedContext = 0;
break;
case FilterData::Built: { } // Empty
}
FilterEffect* lastEffect = filterData->builder->lastEffect();
if (lastEffect && !filterData->boundaries.isEmpty() && !lastEffect->filterPrimitiveSubregion().isEmpty()) {
// This is the real filtering of the object. It just needs to be called on the
// initial filtering process. We just take the stored filter result on a
// second drawing.
if (filterData->state != FilterData::Built)
filterData->filter->setSourceImage(WTF::move(filterData->sourceGraphicBuffer));
// Always true if filterData is just built (filterData->state == FilterData::Built).
if (!lastEffect->hasResult()) {
filterData->state = FilterData::Applying;
lastEffect->applyAll();
lastEffect->correctFilterResultIfNeeded();
lastEffect->transformResultColorSpace(ColorSpaceDeviceRGB);
}
filterData->state = FilterData::Built;
ImageBuffer* resultImage = lastEffect->asImageBuffer();
if (resultImage) {
context->concatCTM(filterData->shearFreeAbsoluteTransform.inverse());
context->scale(FloatSize(1 / filterData->filter->filterResolution().width(), 1 / filterData->filter->filterResolution().height()));
context->drawImageBuffer(*resultImage, renderer.style().colorSpace(), lastEffect->absolutePaintRect());
context->scale(filterData->filter->filterResolution());
context->concatCTM(filterData->shearFreeAbsoluteTransform);
}
}
filterData->sourceGraphicBuffer.reset();
}
bool SVGFontData::applySVGGlyphSelection(WidthIterator& iterator, GlyphData& glyphData, bool mirror, unsigned currentCharacter, unsigned& advanceLength) const
{
const TextRun& run = iterator.run();
Vector<SVGGlyph::ArabicForm>& arabicForms = iterator.arabicForms();
ASSERT(run.charactersLength() >= currentCharacter);
// Associate text with arabic forms, if needed.
String remainingTextInRun;
if (run.is8Bit()) {
remainingTextInRun = String(run.data8(currentCharacter), run.charactersLength() - currentCharacter);
remainingTextInRun = Font::normalizeSpaces(remainingTextInRun.characters8(), remainingTextInRun.length());
} else {
remainingTextInRun = String(run.data16(currentCharacter), run.charactersLength() - currentCharacter);
remainingTextInRun = Font::normalizeSpaces(remainingTextInRun.characters16(), remainingTextInRun.length());
}
if (mirror)
remainingTextInRun = createStringWithMirroredCharacters(remainingTextInRun);
if (!currentCharacter && arabicForms.isEmpty())
arabicForms = charactersWithArabicForm(remainingTextInRun, mirror);
SVGFontFaceElement* svgFontFaceElement = this->svgFontFaceElement();
ASSERT(svgFontFaceElement);
SVGFontElement* associatedFontElement = svgFontFaceElement->associatedFontElement();
ASSERT(associatedFontElement);
RenderObject* renderObject = 0;
if (TextRun::RenderingContext* renderingContext = run.renderingContext())
renderObject = &static_cast<SVGTextRunRenderingContext*>(renderingContext)->renderer();
String language;
bool isVerticalText = false;
Vector<String> altGlyphNames;
if (renderObject) {
RenderElement* parentRenderer = renderObject->isRenderElement() ? toRenderElement(renderObject) : renderObject->parent();
ASSERT(parentRenderer);
isVerticalText = parentRenderer->style().svgStyle().isVerticalWritingMode();
if (Element* parentRendererElement = parentRenderer->element()) {
language = parentRendererElement->getAttribute(XMLNames::langAttr);
if (isSVGAltGlyphElement(parentRendererElement)) {
SVGAltGlyphElement* altGlyph = toSVGAltGlyphElement(parentRendererElement);
if (!altGlyph->hasValidGlyphElements(altGlyphNames))
altGlyphNames.clear();
}
}
}
Vector<SVGGlyph> glyphs;
size_t altGlyphNamesSize = altGlyphNames.size();
if (altGlyphNamesSize) {
for (size_t index = 0; index < altGlyphNamesSize; ++index)
associatedFontElement->collectGlyphsForGlyphName(altGlyphNames[index], glyphs);
// Assign the unicodeStringLength now that its known.
size_t glyphsSize = glyphs.size();
for (size_t i = 0; i < glyphsSize; ++i)
glyphs[i].unicodeStringLength = run.length();
// Do not check alt glyphs for compatibility. Just return the first one.
// Later code will fail if we do not do this and the glyph is incompatible.
if (glyphsSize) {
SVGGlyph& svgGlyph = glyphs[0];
iterator.setLastGlyphName(svgGlyph.glyphName);
glyphData.glyph = svgGlyph.tableEntry;
advanceLength = svgGlyph.unicodeStringLength;
return true;
}
} else
associatedFontElement->collectGlyphsForString(remainingTextInRun, glyphs);
size_t glyphsSize = glyphs.size();
for (size_t i = 0; i < glyphsSize; ++i) {
SVGGlyph& svgGlyph = glyphs[i];
if (svgGlyph.isPartOfLigature)
continue;
if (!isCompatibleGlyph(svgGlyph, isVerticalText, language, arabicForms, currentCharacter, currentCharacter + svgGlyph.unicodeStringLength))
continue;
iterator.setLastGlyphName(svgGlyph.glyphName);
glyphData.glyph = svgGlyph.tableEntry;
advanceLength = svgGlyph.unicodeStringLength;
return true;
}
iterator.setLastGlyphName(String());
return false;
}
void RootInlineBox::ascentAndDescentForBox(InlineBox* box, GlyphOverflowAndFallbackFontsMap& textBoxDataMap, int& ascent, int& descent,
bool& affectsAscent, bool& affectsDescent) const
{
bool ascentDescentSet = false;
// Replaced boxes will return 0 for the line-height if line-box-contain says they are
// not to be included.
if (box->renderer().isReplaced()) {
if (lineStyle().lineBoxContain() & LineBoxContainReplaced) {
ascent = box->baselinePosition(baselineType());
descent = box->lineHeight() - ascent;
// Replaced elements always affect both the ascent and descent.
affectsAscent = true;
affectsDescent = true;
}
return;
}
Vector<const SimpleFontData*>* usedFonts = 0;
GlyphOverflow* glyphOverflow = 0;
if (box->isInlineTextBox()) {
GlyphOverflowAndFallbackFontsMap::iterator it = textBoxDataMap.find(toInlineTextBox(box));
usedFonts = it == textBoxDataMap.end() ? 0 : &it->value.first;
glyphOverflow = it == textBoxDataMap.end() ? 0 : &it->value.second;
}
bool includeLeading = includeLeadingForBox(box);
bool includeFont = includeFontForBox(box);
bool setUsedFont = false;
bool setUsedFontWithLeading = false;
const RenderStyle& boxLineStyle = box->lineStyle();
#if PLATFORM(IOS)
if (usedFonts && !usedFonts->isEmpty() && (includeFont || (boxLineStyle.lineHeight().isNegative() && includeLeading)) && !box->renderer().document().settings()->alwaysUseBaselineOfPrimaryFont()) {
#else
if (usedFonts && !usedFonts->isEmpty() && (includeFont || (boxLineStyle.lineHeight().isNegative() && includeLeading))) {
#endif
usedFonts->append(boxLineStyle.font().primaryFont());
for (size_t i = 0; i < usedFonts->size(); ++i) {
const FontMetrics& fontMetrics = usedFonts->at(i)->fontMetrics();
int usedFontAscent = fontMetrics.ascent(baselineType());
int usedFontDescent = fontMetrics.descent(baselineType());
int halfLeading = (fontMetrics.lineSpacing() - fontMetrics.height()) / 2;
int usedFontAscentAndLeading = usedFontAscent + halfLeading;
int usedFontDescentAndLeading = fontMetrics.lineSpacing() - usedFontAscentAndLeading;
if (includeFont) {
setAscentAndDescent(ascent, descent, usedFontAscent, usedFontDescent, ascentDescentSet);
setUsedFont = true;
}
if (includeLeading) {
setAscentAndDescent(ascent, descent, usedFontAscentAndLeading, usedFontDescentAndLeading, ascentDescentSet);
setUsedFontWithLeading = true;
}
if (!affectsAscent)
affectsAscent = usedFontAscent - box->logicalTop() > 0;
if (!affectsDescent)
affectsDescent = usedFontDescent + box->logicalTop() > 0;
}
}
// If leading is included for the box, then we compute that box.
if (includeLeading && !setUsedFontWithLeading) {
int ascentWithLeading = box->baselinePosition(baselineType());
int descentWithLeading = box->lineHeight() - ascentWithLeading;
setAscentAndDescent(ascent, descent, ascentWithLeading, descentWithLeading, ascentDescentSet);
// Examine the font box for inline flows and text boxes to see if any part of it is above the baseline.
// If the top of our font box relative to the root box baseline is above the root box baseline, then
// we are contributing to the maxAscent value. Descent is similar. If any part of our font box is below
// the root box's baseline, then we contribute to the maxDescent value.
affectsAscent = ascentWithLeading - box->logicalTop() > 0;
affectsDescent = descentWithLeading + box->logicalTop() > 0;
}
if (includeFontForBox(box) && !setUsedFont) {
int fontAscent = boxLineStyle.fontMetrics().ascent(baselineType());
int fontDescent = boxLineStyle.fontMetrics().descent(baselineType());
setAscentAndDescent(ascent, descent, fontAscent, fontDescent, ascentDescentSet);
affectsAscent = fontAscent - box->logicalTop() > 0;
affectsDescent = fontDescent + box->logicalTop() > 0;
}
if (includeGlyphsForBox(box) && glyphOverflow && glyphOverflow->computeBounds) {
setAscentAndDescent(ascent, descent, glyphOverflow->top, glyphOverflow->bottom, ascentDescentSet);
affectsAscent = glyphOverflow->top - box->logicalTop() > 0;
affectsDescent = glyphOverflow->bottom + box->logicalTop() > 0;
glyphOverflow->top = std::min(glyphOverflow->top, std::max(0, glyphOverflow->top - boxLineStyle.fontMetrics().ascent(baselineType())));
glyphOverflow->bottom = std::min(glyphOverflow->bottom, std::max(0, glyphOverflow->bottom - boxLineStyle.fontMetrics().descent(baselineType())));
}
if (includeMarginForBox(box)) {
LayoutUnit ascentWithMargin = boxLineStyle.fontMetrics().ascent(baselineType());
LayoutUnit descentWithMargin = boxLineStyle.fontMetrics().descent(baselineType());
if (box->parent() && !box->renderer().isTextOrLineBreak()) {
ascentWithMargin += box->boxModelObject()->borderAndPaddingBefore() + box->boxModelObject()->marginBefore();
descentWithMargin += box->boxModelObject()->borderAndPaddingAfter() + box->boxModelObject()->marginAfter();
}
setAscentAndDescent(ascent, descent, ascentWithMargin, descentWithMargin, ascentDescentSet);
// Treat like a replaced element, since we're using the margin box.
affectsAscent = true;
affectsDescent = true;
}
}
LayoutUnit RootInlineBox::verticalPositionForBox(InlineBox* box, VerticalPositionCache& verticalPositionCache)
{
if (box->renderer().isTextOrLineBreak())
return box->parent()->logicalTop();
RenderBoxModelObject* renderer = box->boxModelObject();
ASSERT(renderer->isInline());
if (!renderer->isInline())
return 0;
// This method determines the vertical position for inline elements.
bool firstLine = isFirstLine();
if (firstLine && !renderer->document().styleSheetCollection().usesFirstLineRules())
firstLine = false;
// Check the cache.
bool isRenderInline = renderer->isRenderInline();
if (isRenderInline && !firstLine) {
LayoutUnit verticalPosition = verticalPositionCache.get(renderer, baselineType());
if (verticalPosition != PositionUndefined)
return verticalPosition;
}
LayoutUnit verticalPosition = 0;
EVerticalAlign verticalAlign = renderer->style().verticalAlign();
if (verticalAlign == TOP || verticalAlign == BOTTOM)
return 0;
RenderElement* parent = renderer->parent();
if (parent->isRenderInline() && parent->style().verticalAlign() != TOP && parent->style().verticalAlign() != BOTTOM)
verticalPosition = box->parent()->logicalTop();
if (verticalAlign != BASELINE) {
const RenderStyle& parentLineStyle = firstLine ? parent->firstLineStyle() : parent->style();
const Font& font = parentLineStyle.font();
const FontMetrics& fontMetrics = font.fontMetrics();
int fontSize = font.pixelSize();
LineDirectionMode lineDirection = parent->isHorizontalWritingMode() ? HorizontalLine : VerticalLine;
if (verticalAlign == SUB)
verticalPosition += fontSize / 5 + 1;
else if (verticalAlign == SUPER)
verticalPosition -= fontSize / 3 + 1;
else if (verticalAlign == TEXT_TOP)
verticalPosition += renderer->baselinePosition(baselineType(), firstLine, lineDirection) - fontMetrics.ascent(baselineType());
else if (verticalAlign == MIDDLE)
verticalPosition = (verticalPosition - LayoutUnit(fontMetrics.xHeight() / 2) - renderer->lineHeight(firstLine, lineDirection) / 2 + renderer->baselinePosition(baselineType(), firstLine, lineDirection)).round();
else if (verticalAlign == TEXT_BOTTOM) {
verticalPosition += fontMetrics.descent(baselineType());
// lineHeight - baselinePosition is always 0 for replaced elements (except inline blocks), so don't bother wasting time in that case.
if (!renderer->isReplaced() || renderer->isInlineBlockOrInlineTable())
verticalPosition -= (renderer->lineHeight(firstLine, lineDirection) - renderer->baselinePosition(baselineType(), firstLine, lineDirection));
} else if (verticalAlign == BASELINE_MIDDLE)
verticalPosition += -renderer->lineHeight(firstLine, lineDirection) / 2 + renderer->baselinePosition(baselineType(), firstLine, lineDirection);
else if (verticalAlign == LENGTH) {
LayoutUnit lineHeight;
//Per http://www.w3.org/TR/CSS21/visudet.html#propdef-vertical-align: 'Percentages: refer to the 'line-height' of the element itself'.
if (renderer->style().verticalAlignLength().isPercent())
lineHeight = renderer->style().computedLineHeight();
else
lineHeight = renderer->lineHeight(firstLine, lineDirection);
verticalPosition -= valueForLength(renderer->style().verticalAlignLength(), lineHeight);
}
}
// Store the cached value.
if (isRenderInline && !firstLine)
verticalPositionCache.set(renderer, baselineType(), verticalPosition);
return verticalPosition;
}
bool RootInlineBox::includeLeadingForBox(InlineBox* box) const
{
if (box->renderer().isReplaced() || (box->renderer().isTextOrLineBreak() && !box->behavesLikeText()))
return false;
LineBoxContain lineBoxContain = renderer().style().lineBoxContain();
return (lineBoxContain & LineBoxContainInline) || (box == this && (lineBoxContain & LineBoxContainBlock));
}
bool RootInlineBox::includeFontForBox(InlineBox* box) const
{
if (box->renderer().isReplaced() || (box->renderer().isTextOrLineBreak() && !box->behavesLikeText()))
return false;
if (!box->behavesLikeText() && box->isInlineFlowBox() && !toInlineFlowBox(box)->hasTextChildren())
return false;
// For now map "glyphs" to "font" in vertical text mode until the bounds returned by glyphs aren't garbage.
LineBoxContain lineBoxContain = renderer().style().lineBoxContain();
return (lineBoxContain & LineBoxContainFont) || (!isHorizontal() && (lineBoxContain & LineBoxContainGlyphs));
}
bool RootInlineBox::includeGlyphsForBox(InlineBox* box) const
{
if (box->renderer().isReplaced() || (box->renderer().isTextOrLineBreak() && !box->behavesLikeText()))
return false;
if (!box->behavesLikeText() && box->isInlineFlowBox() && !toInlineFlowBox(box)->hasTextChildren())
return false;
// FIXME: We can't fit to glyphs yet for vertical text, since the bounds returned are garbage.
LineBoxContain lineBoxContain = renderer().style().lineBoxContain();
return isHorizontal() && (lineBoxContain & LineBoxContainGlyphs);
}
bool RootInlineBox::includeMarginForBox(InlineBox* box) const
{
if (box->renderer().isReplaced() || (box->renderer().isTextOrLineBreak() && !box->behavesLikeText()))
return false;
LineBoxContain lineBoxContain = renderer().style().lineBoxContain();
return lineBoxContain & LineBoxContainInlineBox;
}
bool RootInlineBox::fitsToGlyphs() const
{
// FIXME: We can't fit to glyphs yet for vertical text, since the bounds returned are garbage.
LineBoxContain lineBoxContain = renderer().style().lineBoxContain();
return isHorizontal() && (lineBoxContain & LineBoxContainGlyphs);
}
void SVGRenderSupport::styleChanged(RenderElement& renderer)
{
auto parent = renderer.parent();
SVGRenderSupport::setRendererHasSVGShadow(renderer, (parent && SVGRenderSupport::rendererHasSVGShadow(*parent)) || renderer.style().svgStyle().shadow());
}
std::unique_ptr<RenderStyle> AnimationController::getAnimatedStyleForRenderer(RenderElement& renderer)
{
if (!renderer.isCSSAnimating())
return RenderStyle::clonePtr(renderer.style());
return m_data->getAnimatedStyleForRenderer(renderer);
}
static inline bool hasVisibleTextArea(RenderElement& textControl, TextControlInnerTextElement* innerText)
{
return textControl.style()->visibility() != HIDDEN && innerText && innerText->renderer() && innerText->renderBox()->height();
}
bool TextAutoSizingValue::adjustNodeSizes()
{
bool objectsRemoved = false;
// Remove stale nodes. Nodes may have had their renderers detached. We'll
// also need to remove the style from the documents m_textAutoSizedNodes
// collection. Return true indicates we need to do that removal.
Vector<RefPtr<Node> > nodesForRemoval;
HashSet<RefPtr<Node> >::iterator end = m_autoSizedNodes.end();
for (HashSet<RefPtr<Node> >::iterator i = m_autoSizedNodes.begin(); i != end; ++i) {
RefPtr<Node> autoSizingNode = *i;
RenderText* text = static_cast<RenderText*>(autoSizingNode->renderer());
if (!text || !text->style().textSizeAdjust().isAuto() || !text->candidateComputedTextSize()) {
// remove node.
nodesForRemoval.append(autoSizingNode);
objectsRemoved = true;
}
}
unsigned count = nodesForRemoval.size();
for (unsigned i = 0; i < count; i++)
m_autoSizedNodes.remove(nodesForRemoval[i]);
// If we only have one piece of text with the style on the page don't
// adjust it's size.
if (m_autoSizedNodes.size() <= 1)
return objectsRemoved;
// Compute average size
float cumulativeSize = 0;
end = m_autoSizedNodes.end();
for (HashSet<RefPtr<Node> >::iterator i = m_autoSizedNodes.begin(); i != end; ++i) {
RefPtr<Node> autoSizingNode = *i;
RenderText* renderText = static_cast<RenderText*>(autoSizingNode->renderer());
cumulativeSize += renderText->candidateComputedTextSize();
}
float averageSize = roundf(cumulativeSize / m_autoSizedNodes.size());
// Adjust sizes
bool firstPass = true;
end = m_autoSizedNodes.end();
for (HashSet<RefPtr<Node> >::iterator i = m_autoSizedNodes.begin(); i != end; ++i) {
const RefPtr<Node>& autoSizingNode = *i;
RenderText* text = static_cast<RenderText*>(autoSizingNode->renderer());
if (text && text->style().fontDescription().computedSize() != averageSize) {
float specifiedSize = text->style().fontDescription().specifiedSize();
float scaleChange = averageSize / specifiedSize;
if (scaleChange > MAX_SCALE_INCREASE && firstPass) {
firstPass = false;
averageSize = roundf(specifiedSize * MAX_SCALE_INCREASE);
scaleChange = averageSize / specifiedSize;
}
RefPtr<RenderStyle> style = cloneRenderStyleWithState(text->style());
FontDescription fontDescription = style->fontDescription();
fontDescription.setComputedSize(averageSize);
style->setFontDescription(fontDescription);
style->font().update(autoSizingNode->document().ensureStyleResolver().fontSelector());
text->parent()->setStyle(style.releaseNonNull());
RenderElement* parentRenderer = text->parent();
if (parentRenderer->isAnonymousBlock())
parentRenderer = parentRenderer->parent();
// If we have a list we should resize ListMarkers separately.
RenderObject* listMarkerRenderer = parentRenderer->firstChild();
if (listMarkerRenderer->isListMarker()) {
RefPtr<RenderStyle> style = cloneRenderStyleWithState(listMarkerRenderer->style());
style->setFontDescription(fontDescription);
style->font().update(autoSizingNode->document().ensureStyleResolver().fontSelector());
toRenderListMarker(*listMarkerRenderer).setStyle(style.releaseNonNull());
}
// Resize the line height of the parent.
const RenderStyle& parentStyle = parentRenderer->style();
Length lineHeightLength = parentStyle.specifiedLineHeight();
int specifiedLineHeight = 0;
if (lineHeightLength.isPercent())
specifiedLineHeight = minimumValueForLength(lineHeightLength, fontDescription.specifiedSize());
else
specifiedLineHeight = lineHeightLength.value();
int lineHeight = specifiedLineHeight * scaleChange;
if (!lineHeightLength.isFixed() || lineHeightLength.value() != lineHeight) {
RefPtr<RenderStyle> newParentStyle = cloneRenderStyleWithState(parentStyle);
newParentStyle->setLineHeight(Length(lineHeight, Fixed));
newParentStyle->setSpecifiedLineHeight(lineHeightLength);
newParentStyle->setFontDescription(fontDescription);
newParentStyle->font().update(autoSizingNode->document().ensureStyleResolver().fontSelector());
parentRenderer->setStyle(newParentStyle.releaseNonNull());
}
}
}
return objectsRemoved;
}
