PassRefPtr<ComputedStyle> HTMLImageFallbackHelper::customStyleForAltText(Element& element, PassRefPtr<ComputedStyle> newStyle)
{
// If we have an author shadow root or have not created the UA shadow root yet, bail early. We can't
// use ensureUserAgentShadowRoot() here because that would alter the DOM tree during style recalc.
if (element.authorShadowRoot() || !element.userAgentShadowRoot())
return newStyle;
Element* placeHolder = element.userAgentShadowRoot()->getElementById("alttext-container");
Element* brokenImage = element.userAgentShadowRoot()->getElementById("alttext-image");
// Input elements have a UA shadow root of their own. We may not have replaced it with fallback content yet.
if (!placeHolder || !brokenImage)
return newStyle;
if (element.document().inQuirksMode()) {
// Mimic the behaviour of the image host by setting symmetric dimensions if only one dimension is specified.
if (newStyle->width().isSpecifiedOrIntrinsic() && newStyle->height().isAuto())
newStyle->setHeight(newStyle->width());
else if (newStyle->height().isSpecifiedOrIntrinsic() && newStyle->width().isAuto())
newStyle->setWidth(newStyle->height());
if (newStyle->width().isSpecifiedOrIntrinsic() && newStyle->height().isSpecifiedOrIntrinsic()) {
placeHolder->setInlineStyleProperty(CSSPropertyVerticalAlign, CSSValueBaseline);
}
}
// If the image has specified dimensions allow the alt-text container expand to fill them.
if (newStyle->width().isSpecifiedOrIntrinsic() && newStyle->height().isSpecifiedOrIntrinsic()) {
placeHolder->setInlineStyleProperty(CSSPropertyWidth, 100, CSSPrimitiveValue::UnitType::Percentage);
placeHolder->setInlineStyleProperty(CSSPropertyHeight, 100, CSSPrimitiveValue::UnitType::Percentage);
}
// Make sure the broken image icon appears on the appropriate side of the image for the element's writing direction.
brokenImage->setInlineStyleProperty(CSSPropertyFloat, AtomicString(newStyle->direction() == LTR ? "left" : "right"));
// This is an <img> with no attributes, so don't display anything.
if (noImageSourceSpecified(element) && !newStyle->width().isSpecifiedOrIntrinsic() && !newStyle->height().isSpecifiedOrIntrinsic() && toHTMLElement(element).altText().isEmpty())
newStyle->setDisplay(NONE);
// This preserves legacy behaviour originally defined when alt-text was managed by LayoutImage.
if (noImageSourceSpecified(element))
brokenImage->setInlineStyleProperty(CSSPropertyDisplay, CSSValueNone);
else
brokenImage->setInlineStyleProperty(CSSPropertyDisplay, CSSValueInline);
return newStyle;
}
PassRefPtr<RenderStyle> BaseMultipleFieldsDateAndTimeInputType::customStyleForRenderer(PassRefPtr<RenderStyle> originalStyle)
{
EDisplay originalDisplay = originalStyle->display();
EDisplay newDisplay = originalDisplay;
if (originalDisplay == INLINE || originalDisplay == INLINE_BLOCK)
newDisplay = INLINE_FLEX;
else if (originalDisplay == BLOCK)
newDisplay = FLEX;
TextDirection contentDirection = element()->locale().isRTL() ? RTL : LTR;
if (originalStyle->direction() == contentDirection && originalDisplay == newDisplay)
return originalStyle;
RefPtr<RenderStyle> style = RenderStyle::clone(originalStyle.get());
style->setDirection(contentDirection);
style->setDisplay(newDisplay);
return style.release();
}
PassRefPtr<ComputedStyle> BaseMultipleFieldsDateAndTimeInputType::customStyleForLayoutObject(PassRefPtr<ComputedStyle> originalStyle)
{
EDisplay originalDisplay = originalStyle->display();
EDisplay newDisplay = originalDisplay;
if (originalDisplay == INLINE || originalDisplay == INLINE_BLOCK)
newDisplay = INLINE_FLEX;
else if (originalDisplay == BLOCK)
newDisplay = FLEX;
TextDirection contentDirection = computedTextDirection();
if (originalStyle->direction() == contentDirection && originalDisplay == newDisplay)
return originalStyle;
RefPtr<ComputedStyle> style = ComputedStyle::clone(*originalStyle);
style->setDirection(contentDirection);
style->setDisplay(newDisplay);
style->setUnique();
return style.release();
}
PassRefPtr<ComputedStyle>
MultipleFieldsTemporalInputTypeView::customStyleForLayoutObject(
PassRefPtr<ComputedStyle> originalStyle) {
EDisplay originalDisplay = originalStyle->display();
EDisplay newDisplay = originalDisplay;
if (originalDisplay == EDisplay::Inline ||
originalDisplay == EDisplay::InlineBlock)
newDisplay = EDisplay::InlineFlex;
else if (originalDisplay == EDisplay::Block)
newDisplay = EDisplay::Flex;
TextDirection contentDirection = computedTextDirection();
if (originalStyle->direction() == contentDirection &&
originalDisplay == newDisplay)
return originalStyle;
RefPtr<ComputedStyle> style = ComputedStyle::clone(*originalStyle);
style->setDirection(contentDirection);
style->setDisplay(newDisplay);
style->setUnique();
return style.release();
}
