LibWeb: Refactor GridTrackSize classes

Refactor various classes in the GridTrackSize file for the incoming
named_tracks feature.

Previously the ExplicitTrackSizing had mixed responsiblities with the
newly-named GridRepeat class. This made it so it was not possible to
have multiple repeats within a single 'GridTrackSizeList' definition.

The MetaGridTrackSize class had both the responsibilities of being a
container for minmax values as well as for simple GridSizes. By uniting
the different possible values (repeat, minmax, default) into the
ExplicitGridTrack class are able to be more expressive as to the
different grid size modalities.

The GridTrackSizeList will be useful as compared to a
Vector<ExplicitGridTrack> since this way can keep track of the declared
line names. These same line names are able to be declared within the
values of a repeat function, hence the presence of a GridTrackSizeList
inside the GridRepeat class.

1 files changed, 12 insertions, 7 deletions

diff --git a/Userland/Libraries/LibWeb/CSS/StyleValue.cpp b/Userland/Libraries/LibWeb/CSS/StyleValue.cpp
index 009850fca3..869cab95c5 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValue.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValue.cpp
@@ -168,9 +168,9 @@ LengthStyleValue const& StyleValue::as_length() const
     return static_cast<LengthStyleValue const&>(*this);
 }
 
-GridTrackSizeStyleValue const& StyleValue::as_explicit_track_sizing() const
+GridTrackSizeStyleValue const& StyleValue::as_grid_track_size_list() const
 {
-    VERIFY(is_explicit_track_sizing());
+    VERIFY(is_grid_track_size_list());
     return static_cast<GridTrackSizeStyleValue const&>(*this);
 }
 
@@ -1418,15 +1418,15 @@ bool GridTrackPlacementStyleValue::equals(StyleValue const& other) const
 
 String GridTrackSizeStyleValue::to_string() const
 {
-    return m_explicit_track_sizing.to_string();
+    return m_grid_track_size_list.to_string();
 }
 
 bool GridTrackSizeStyleValue::equals(StyleValue const& other) const
 {
     if (type() != other.type())
         return false;
-    auto const& typed_other = other.as_explicit_track_sizing();
-    return m_explicit_track_sizing == typed_other.explicit_track_sizing();
+    auto const& typed_other = other.as_grid_track_size_list();
+    return m_grid_track_size_list == typed_other.grid_track_size_list();
 }
 
 String IdentifierStyleValue::to_string() const
@@ -2145,9 +2145,14 @@ NonnullRefPtr<GridTrackPlacementStyleValue> GridTrackPlacementStyleValue::create
     return adopt_ref(*new GridTrackPlacementStyleValue(grid_track_placement));
 }
 
-NonnullRefPtr<GridTrackSizeStyleValue> GridTrackSizeStyleValue::create(CSS::ExplicitTrackSizing explicit_track_sizing)
+NonnullRefPtr<GridTrackSizeStyleValue> GridTrackSizeStyleValue::create(CSS::GridTrackSizeList grid_track_size_list)
 {
-    return adopt_ref(*new GridTrackSizeStyleValue(explicit_track_sizing));
+    return adopt_ref(*new GridTrackSizeStyleValue(grid_track_size_list));
+}
+
+NonnullRefPtr<GridTrackSizeStyleValue> GridTrackSizeStyleValue::make_auto()
+{
+    return adopt_ref(*new GridTrackSizeStyleValue(CSS::GridTrackSizeList()));
 }
 
 NonnullRefPtr<RectStyleValue> RectStyleValue::create(EdgeRect rect)