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LibWeb: Fix grid line name placement when repeat() is used

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Before this change, parsed grid-template-columns/grid-template-rows
were represented as two lists: line names and track sizes. The problem
with this approach is that it erases the relationship between tracks
and their names, which results in unnecessarily complicated code that
restores this data (incorrectly if repeat() is involved) during layout.
This change solves that by representing line definitions as a list of
sizes and names in the order they were defined.

Visual progression https://genius.com/
This commit is contained in:
Aliaksandr Kalenik 2024-01-05 04:24:36 +01:00 • committed by Andreas Kling
parent c4d75ac11a
commit cfcc459140
7 changed files with 168 additions and 104 deletions
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10
Userland/Libraries/LibWeb/Layout/GridFormattingContext.h
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@ -147,6 +147,14 @@ private:
bool invalid { false }; /* FIXME: Ignore ignore invalid areas during layout */
};
struct GridLine {
Vector<String> names;
};
Vector<GridLine> m_row_lines;
Vector<GridLine> m_column_lines;
void init_grid_lines(GridDimension);
HashMap<String, GridArea> m_grid_areas;
Vector<GridTrack> m_grid_rows;
@ -234,7 +242,7 @@ private:
AvailableSize get_free_space(AvailableSpace const&, GridDimension const) const;
int get_line_index_by_line_name(String const& line_name, CSS::GridTrackSizeList);
Optional<int> get_line_index_by_line_name(GridDimension dimension, String const&);
CSSPixels resolve_definite_track_size(CSS::GridSize const&, AvailableSpace const&);
int count_of_repeated_auto_fill_or_fit_tracks(Vector<CSS::ExplicitGridTrack> const& track_list, AvailableSpace const&);
int get_count_of_tracks(Vector<CSS::ExplicitGridTrack> const&, AvailableSpace const&);