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LibWeb: Implement the "fontSize" editing command

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Jelle Raaijmakers 2025-01-08 16:01:07 +01:00 • committed by Andreas Kling
parent 9366a50dd3
commit 1d2500e31f
Notes: github-actions[bot] 2025-01-10 22:36:54 +00:00
5 changed files with 141 additions and 1 deletions
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8
Libraries/LibWeb/Editing/Internal/Algorithms.cpp
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@ -3961,7 +3961,12 @@ GC::Ptr<DOM::Node> first_formattable_node_effectively_contained(GC::Ptr<DOM::Ran
CSSPixels font_size_to_pixel_size(StringView font_size)
{
auto pixel_size = CSS::StyleComputer::default_user_font_size();
// If the font size ends in 'px', interpret the preceding as a number and return it.
if (font_size.length() >= 2 && font_size.substring_view(font_size.length() - 2).equals_ignoring_ascii_case("px"sv)) {
auto optional_number = font_size.substring_view(0, font_size.length() - 2).to_number<float>();
if (optional_number.has_value())
return CSSPixels::nearest_value_for(optional_number.value());
}
// Try to map the font size directly to a keyword (e.g. medium or x-large)
auto keyword = CSS::keyword_from_string(font_size);
@ -3971,6 +3976,7 @@ CSSPixels font_size_to_pixel_size(StringView font_size)
keyword = HTML::HTMLFontElement::parse_legacy_font_size(font_size);
// If that also failed, give up
auto pixel_size = CSS::StyleComputer::default_user_font_size();
if (!keyword.has_value())
return pixel_size;