Struct layout_2020::table::construct::TableBuilder

pub struct TableBuilder {
    table: Table,
    pub incoming_rowspans: Vec<isize>,
}

Fields

table: Table

The table that we are building.

incoming_rowspans: Vec<isize>

An incoming rowspan is a value indicating that a cell in a row above the current row, had a rowspan value other than 1. The values in this array indicate how many more rows the cell should span. For example, a value of 0 at an index before current_x() indicates that the cell on that column will not span into the next row, and at an index after current_x() it indicates that the cell will not span into the current row. A negative value means that the cell will span all remaining rows in the row group.

As each column in a row is processed, the values in this vector are updated for the next row.

Implementations

impl TableBuilder

pub(super) fn new( style: Arc<ComputedValues>, grid_style: Arc<ComputedValues>, base_fragment_info: BaseFragmentInfo, ) -> Self

pub fn new_for_tests() -> Self

pub fn last_row_index_in_row_group_at_row_n(&self, n: usize) -> usize

pub fn finish(self) -> Table

fn do_missing_cells_fixup(&mut self)

Do https://drafts.csswg.org/css-tables/#missing-cells-fixup which ensures that every row has the same number of cells.

fn adjust_table_geometry_for_columns_and_colgroups(&mut self)

It’s possible to define more table columns via <colgroup> and <col> elements than actually exist in the table. In that case, increase the size of the table.

However, if the table has no row nor row group, remove the extra columns instead. This matches WebKit, and some tests require it, but Gecko and Blink don’t do it.

fn reorder_first_thead_and_tfoot(&mut self)

Reorder the first <thead> and <tbody> to be the first and last row groups respectively. This requires fixing up all row group indices. See https://drafts.csswg.org/css-tables/#table-header-group and https://drafts.csswg.org/css-tables/#table-footer-group.

fn regenerate_track_ranges(&mut self)

fn move_row_group_to_front(&mut self, index_to_move: usize)

fn move_row_group_to_end(&mut self, index_to_move: usize)

fn do_final_rowspan_calculation(&mut self)

Turn all rowspan=0 rows into the real value to avoid having to make the calculation continually during layout. In addition, make sure that there are no rowspans that extend past the end of their row group.

fn current_y(&self) -> Option<usize>

fn current_x(&self) -> Option<usize>

fn current_coords(&self) -> Option<Point2D<usize, UnknownUnit>>

pub fn start_row(&mut self)

pub fn end_row(&mut self)

fn create_slots_for_cells_above_with_rowspan( &mut self, stop_at_cell_opportunity: bool, )

When not in the process of filling a cell, make sure any incoming rowspans are filled so that the next specified cell comes after them. Should have been called before Self::add_cell

if stop_at_cell_opportunity is set, this will stop at the first slot with incoming_rowspans equal to zero. If not, it will insert TableSlot::Empty and continue to look for more incoming rowspans (which should only be done once we’re finished processing the cells in a row, and after calling truncating cells with remaining rowspan from the end of incoming_rowspans.

pub fn add_cell(&mut self, cell: TableSlotCell)

https://html.spec.whatwg.org/multipage/#algorithm-for-processing-rows Push a single cell onto the slot map, handling any colspans it may have, and setting up the outgoing rowspans.