LibWeb: Remove Length::Type::Undefined! :^)

Userland/Libraries/LibWeb/CSS/Length.cpp

@@ -18,7 +18,6 @@
 
 namespace Web::CSS {
 
-Length::Length() = default;
 Length::Length(int value, Type type)
     : m_type(type)
     , m_value(value)
@@ -49,8 +48,8 @@ Length Length::make_calculated(NonnullRefPtr<CalculatedStyleValue> calculated_st
 
 Length Length::percentage_of(Percentage const& percentage) const
 {
-    if (is_undefined_or_auto()) {
-        dbgln("Attempting to get percentage of an undefined or auto length, this seems wrong? But for now we just return the original length.");
+    if (is_auto()) {
+        dbgln("Attempting to get percentage of an auto length, this seems wrong? But for now we just return the original length.");
         return *this;
     }
 
@@ -132,8 +131,6 @@ const char* Length::unit_name() const
         return "rem";
     case Type::Auto:
         return "auto";
-    case Type::Undefined:
-        return "undefined";
     case Type::Vh:
         return "vh";
     case Type::Vw:

Userland/Libraries/LibWeb/CSS/Length.h

@@ -15,7 +15,6 @@ namespace Web::CSS {
 class Length {
 public:
     enum class Type {
-        Undefined,
         Calculated,
         Auto,
         Cm,
@@ -37,7 +36,6 @@ public:
 
     // We have a RefPtr<CalculatedStyleValue> member, but can't include the header StyleValue.h as it includes
     // this file already. To break the cyclic dependency, we must move all method definitions out.
-    Length();
     Length(int value, Type type);
     Length(float value, Type type);
 
@@ -48,8 +46,6 @@ public:
 
     Length resolved(Layout::Node const& layout_node) const;
 
-    bool is_undefined_or_auto() const { return m_type == Type::Undefined || m_type == Type::Auto; }
-    bool is_undefined() const { return m_type == Type::Undefined; }
     bool is_auto() const { return m_type == Type::Auto; }
     bool is_calculated() const { return m_type == Type::Calculated; }
 
@@ -137,7 +133,7 @@ public:
 private:
     const char* unit_name() const;
 
-    Type m_type { Type::Undefined };
+    Type m_type;
     float m_value { 0 };
 
     RefPtr<CalculatedStyleValue> m_calculated_style;

Userland/Libraries/LibWeb/CSS/StyleProperties.cpp

@@ -131,7 +131,7 @@ float StyleProperties::line_height(Layout::Node const& layout_node) const
 
         if (line_height->is_length()) {
             auto line_height_length = line_height->to_length();
-            if (!line_height_length.is_undefined_or_auto())
+            if (!line_height_length.is_auto())
                 return line_height_length.to_px(layout_node);
         }
 

Userland/Libraries/LibWeb/CSS/StyleValue.cpp

@@ -500,7 +500,6 @@ Optional<Length> CalculatedStyleValue::resolve_length(Layout::Node const& layout
 
 Optional<LengthPercentage> CalculatedStyleValue::resolve_length_percentage(Layout::Node const& layout_node, Length const& percentage_basis) const
 {
-    VERIFY(!percentage_basis.is_undefined());
     auto result = m_expression->resolve(&layout_node, percentage_basis);
 
     return result.value().visit(

Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp

@@ -295,7 +295,7 @@ float BlockFormattingContext::compute_theoretical_height(Box const& box)
         height = compute_height_for_replaced_element(verify_cast<ReplacedBox>(box));
     } else {
         if (!box.computed_values().height().has_value()
-            || (box.computed_values().height()->is_length() && box.computed_values().height()->length().is_undefined_or_auto())
+            || (box.computed_values().height()->is_length() && box.computed_values().height()->length().is_auto())
             || (computed_values.height().has_value() && computed_values.height()->is_percentage() && !is_absolute(containing_block.computed_values().height()))) {
             height = compute_auto_height_for_block_level_element(box, ConsiderFloats::No);
         } else {
@@ -441,7 +441,7 @@ void BlockFormattingContext::layout_block_level_children(BlockContainer& block_c
 
     if (layout_mode != LayoutMode::Default) {
         auto& width = block_container.computed_values().width();
-        if (!width.has_value() || (width->is_length() && width->length().is_undefined_or_auto()))
+        if (!width.has_value() || (width->is_length() && width->length().is_auto()))
             block_container.set_content_width(content_width);
     }
 }

Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp

@@ -29,7 +29,7 @@ static bool is_undefined_or_auto(Optional<CSS::LengthPercentage> const& length_p
 {
     if (!length_percentage.has_value())
         return true;
-    return length_percentage->is_length() && length_percentage->length().is_undefined_or_auto();
+    return length_percentage->is_length() && length_percentage->length().is_auto();
 }
 
 FlexFormattingContext::FlexFormattingContext(Box& flex_container, FormattingContext* parent)
@@ -235,11 +235,12 @@ bool FlexFormattingContext::cross_size_is_absolute_or_resolved_nicely(NodeWithSt
     if (!length_percentage.has_value())
         return false;
 
+    // FIXME: Handle calc here.
     if (length_percentage->is_length()) {
         auto& length = length_percentage->length();
         if (length.is_absolute() || length.is_relative())
             return true;
-        if (length.is_undefined_or_auto())
+        if (length.is_auto())
             return false;
     }
 

Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp

@@ -126,7 +126,7 @@ void InlineFormattingContext::dimension_box_on_line(Box& box, LayoutMode layout_
         auto& inline_block = const_cast<BlockContainer&>(verify_cast<BlockContainer>(box));
 
         auto& width_value = inline_block.computed_values().width();
-        if (!width_value.has_value() || (width_value->is_length() && width_value->length().is_undefined_or_auto())) {
+        if (!width_value.has_value() || (width_value->is_length() && width_value->length().is_auto())) {
             auto result = calculate_shrink_to_fit_widths(inline_block);
 
             auto available_width = containing_block().content_width()
@@ -146,7 +146,7 @@ void InlineFormattingContext::dimension_box_on_line(Box& box, LayoutMode layout_
         auto independent_formatting_context = layout_inside(inline_block, layout_mode);
 
         auto& height_value = inline_block.computed_values().height();
-        if (!height_value.has_value() || (height_value->is_length() && height_value->length().is_undefined_or_auto())) {
+        if (!height_value.has_value() || (height_value->is_length() && height_value->length().is_auto())) {
             // FIXME: (10.6.6) If 'height' is 'auto', the height depends on the element's descendants per 10.6.7.
             BlockFormattingContext::compute_height(inline_block);
         } else {

Userland/Libraries/LibWeb/Layout/TableFormattingContext.cpp

@@ -72,7 +72,7 @@ void TableFormattingContext::calculate_column_widths(Box& row, Vector<float>& co
 {
     size_t column_index = 0;
     auto* table = row.first_ancestor_of_type<TableBox>();
-    bool use_auto_layout = !table || (!table->computed_values().width().has_value() || (table->computed_values().width()->is_length() && table->computed_values().width()->length().is_undefined_or_auto()));
+    bool use_auto_layout = !table || (!table->computed_values().width().has_value() || (table->computed_values().width()->is_length() && table->computed_values().width()->length().is_auto()));
     row.for_each_child_of_type<TableCellBox>([&](auto& cell) {
         compute_width(cell);
         if (use_auto_layout) {
@@ -91,7 +91,7 @@ void TableFormattingContext::layout_row(Box& row, Vector<float>& column_widths)
     float tallest_cell_height = 0;
     float content_width = 0;
     auto* table = row.first_ancestor_of_type<TableBox>();
-    bool use_auto_layout = !table || (!table->computed_values().width().has_value() || (table->computed_values().width()->is_length() && table->computed_values().width()->length().is_undefined_or_auto()));
+    bool use_auto_layout = !table || (!table->computed_values().width().has_value() || (table->computed_values().width()->is_length() && table->computed_values().width()->length().is_auto()));
 
     row.for_each_child_of_type<TableCellBox>([&](auto& cell) {
         cell.set_offset(row.effective_offset().translated(content_width, 0));