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Issue #2792 -Implements parsing, computed style, and writing mode mapping for overflow-block and overflow-inline properties

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MeladJM 2025-07-17 05:01:34 +08:00 • committed by roytam1
commit 0903dacaa7
5 changed files with 103 additions and 0 deletions
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52
layout/style/nsComputedDOMStyle.cpp
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@ -6791,4 +6791,56 @@ nsComputedDOMStyle::UnregisterPrefChangeCallbacks()
#undef UNREGISTER_CALLBACK
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowBlock()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
uint8_t writingMode = StyleVisibility()->mWritingMode;
bool isVertical = writingMode == NS_STYLE_WRITING_MODE_VERTICAL_LR ||
writingMode == NS_STYLE_WRITING_MODE_VERTICAL_RL ||
writingMode == NS_STYLE_WRITING_MODE_SIDEWAYS_LR ||
writingMode == NS_STYLE_WRITING_MODE_SIDEWAYS_RL;
auto overflow = isVertical ? StyleDisplay()->mOverflowX : StyleDisplay()->mOverflowY;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(overflow, nsCSSProps::kOverflowSubKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowInline()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
uint8_t writingMode = StyleVisibility()->mWritingMode;
bool isVertical = writingMode == NS_STYLE_WRITING_MODE_VERTICAL_LR ||
writingMode == NS_STYLE_WRITING_MODE_VERTICAL_RL ||
writingMode == NS_STYLE_WRITING_MODE_SIDEWAYS_LR ||
writingMode == NS_STYLE_WRITING_MODE_SIDEWAYS_RL;
auto overflow = isVertical ? StyleDisplay()->mOverflowY : StyleDisplay()->mOverflowX;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(overflow, nsCSSProps::kOverflowSubKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowInlineStart()
{
return DoGetOverflowInline();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowInlineEnd()
{
return DoGetOverflowInline();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowBlockStart()
{
return DoGetOverflowBlock();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowBlockEnd()
{
return DoGetOverflowBlock();
}