void CSSToStyleMap::mapNinePieceImage(StyleResolverState& state, CSSPropertyID property, CSSValue* value, NinePieceImage& image)
{
// If we're not a value list, then we are "none" and don't need to alter the empty image at all.
if (!value || !value->isValueList())
return;
// Retrieve the border image value.
CSSValueList* borderImage = toCSSValueList(value);
// Set the image (this kicks off the load).
CSSPropertyID imageProperty;
if (property == CSSPropertyWebkitBorderImage)
imageProperty = CSSPropertyBorderImageSource;
else if (property == CSSPropertyWebkitMaskBoxImage)
imageProperty = CSSPropertyWebkitMaskBoxImageSource;
else
imageProperty = property;
for (unsigned i = 0 ; i < borderImage->length() ; ++i) {
CSSValue* current = borderImage->item(i);
if (current->isImageValue() || current->isImageGeneratorValue() || current->isImageSetValue())
image.setImage(state.styleImage(imageProperty, current));
else if (current->isBorderImageSliceValue())
mapNinePieceImageSlice(state, current, image);
else if (current->isValueList()) {
CSSValueList* slashList = toCSSValueList(current);
size_t length = slashList->length();
// Map in the image slices.
if (length && slashList->item(0)->isBorderImageSliceValue())
mapNinePieceImageSlice(state, slashList->item(0), image);
// Map in the border slices.
if (length > 1)
image.setBorderSlices(mapNinePieceImageQuad(state, slashList->item(1)));
// Map in the outset.
if (length > 2)
image.setOutset(mapNinePieceImageQuad(state, slashList->item(2)));
} else if (current->isPrimitiveValue()) {
// Set the appropriate rules for stretch/round/repeat of the slices.
mapNinePieceImageRepeat(state, current, image);
}
}
if (property == CSSPropertyWebkitBorderImage) {
// We have to preserve the legacy behavior of -webkit-border-image and make the border slices
// also set the border widths. We don't need to worry about percentages, since we don't even support
// those on real borders yet.
if (image.borderSlices().top().isLength() && image.borderSlices().top().length().isFixed())
state.style()->setBorderTopWidth(image.borderSlices().top().length().value());
if (image.borderSlices().right().isLength() && image.borderSlices().right().length().isFixed())
state.style()->setBorderRightWidth(image.borderSlices().right().length().value());
if (image.borderSlices().bottom().isLength() && image.borderSlices().bottom().length().isFixed())
state.style()->setBorderBottomWidth(image.borderSlices().bottom().length().value());
if (image.borderSlices().left().isLength() && image.borderSlices().left().length().isFixed())
state.style()->setBorderLeftWidth(image.borderSlices().left().length().value());
}
}
static bool subimageKnownToBeOpaque(CSSValue& value, const RenderElement* renderer)
{
if (value.isImageValue())
return toCSSImageValue(value).knownToBeOpaque(renderer);
if (value.isImageGeneratorValue())
return toCSSImageGeneratorValue(value).knownToBeOpaque(renderer);
ASSERT_NOT_REACHED();
return false;
}
PassRefPtrWillBeRawPtr<StyleImage> ElementStyleResources::styleImage(CSSPropertyID property, const CSSValue& value)
{
if (value.isImageValue())
return cachedOrPendingFromValue(property, toCSSImageValue(value));
if (value.isImageGeneratorValue())
return generatedOrPendingFromValue(property, toCSSImageGeneratorValue(value));
if (value.isImageSetValue())
return setOrPendingFromValue(property, toCSSImageSetValue(value));
if (value.isCursorImageValue())
return cursorOrPendingFromValue(property, toCSSCursorImageValue(value));
return nullptr;
}
