void
nsCSSCompressedDataBlock::MapRuleInfoInto(nsRuleData *aRuleData) const
{
// If we have no data for these structs, then return immediately.
// This optimization should make us return most of the time, so we
// have to worry much less (although still some) about the speed of
// the rest of the function.
if (!(aRuleData->mSIDs & mStyleBits))
return;
nsIDocument* doc = aRuleData->mPresContext->Document();
const char* cursor = Block();
const char* cursor_end = BlockEnd();
while (cursor < cursor_end) {
nsCSSProperty iProp = PropertyAtCursor(cursor);
NS_ABORT_IF_FALSE(!nsCSSProps::IsShorthand(iProp), "out of range");
if (nsCachedStyleData::GetBitForSID(nsCSSProps::kSIDTable[iProp]) &
aRuleData->mSIDs) {
nsCSSValue* target = aRuleData->ValueFor(iProp);
if (target->GetUnit() == eCSSUnit_Null) {
const nsCSSValue *val = ValueAtCursor(cursor);
NS_ABORT_IF_FALSE(val->GetUnit() != eCSSUnit_Null, "oops");
if (ShouldStartImageLoads(aRuleData, iProp)) {
TryToStartImageLoad(*val, doc, iProp);
}
*target = *val;
if (nsCSSProps::PropHasFlags(iProp,
CSS_PROPERTY_IGNORED_WHEN_COLORS_DISABLED) &&
ShouldIgnoreColors(aRuleData))
{
if (iProp == eCSSProperty_background_color) {
// Force non-'transparent' background
// colors to the user's default.
if (target->IsNonTransparentColor()) {
target->SetColorValue(aRuleData->mPresContext->
DefaultBackgroundColor());
}
} else {
// Ignore 'color', 'border-*-color', etc.
*target = nsCSSValue();
}
}
}
}
cursor += CDBValueStorage_advance;
}
NS_ABORT_IF_FALSE(cursor == cursor_end, "inconsistent data");
}
static void
TryToStartImageLoad(const nsCSSValue& aValue, nsIDocument* aDocument,
nsCSSProperty aProperty)
{
if (aValue.GetUnit() == eCSSUnit_List) {
for (const nsCSSValueList* l = aValue.GetListValue(); l; l = l->mNext) {
TryToStartImageLoad(l->mValue, aDocument, aProperty);
}
} else if (nsCSSProps::PropHasFlags(aProperty,
CSS_PROPERTY_IMAGE_IS_IN_ARRAY_0)) {
if (aValue.GetUnit() == eCSSUnit_Array) {
TryToStartImageLoadOnValue(aValue.GetArrayValue()->Item(0), aDocument);
}
} else {
TryToStartImageLoadOnValue(aValue, aDocument);
}
}