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https://github.com/RGBCube/serenity
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LibWeb: Complete table border conflict resolution
Add the element type and grid position to the algorithm and change the table borders painting to apply the new criteria to corners as well.
This commit is contained in:
Andi Gallo
Andreas Kling
parent
849cf894d8
commit
a7166eb103
6 changed files with 317 additions and 127 deletions
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@ -49,97 +49,147 @@ enum class EdgeDirection {
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struct BorderEdgePaintingInfo {
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DevicePixelRect rect;
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CSS::BorderData border_data;
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PaintableBox::BorderDataWithElementKind border_data_with_element_kind;
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EdgeDirection direction;
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Optional<size_t> row;
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Optional<size_t> column;
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};
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static BorderEdgePaintingInfo make_right_cell_edge(PaintContext& context, CSSPixelRect const& right_cell_rect, CSSPixelRect const& cell_rect, BordersData const& borders_data)
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static Optional<size_t> row_index_for_element_kind(size_t index, Painting::PaintableBox::ConflictingElementKind element_kind)
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{
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switch (element_kind) {
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case Painting::PaintableBox::ConflictingElementKind::Cell:
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case Painting::PaintableBox::ConflictingElementKind::Row:
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case Painting::PaintableBox::ConflictingElementKind::RowGroup: {
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return index;
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}
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default:
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return {};
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}
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}
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static Optional<size_t> column_index_for_element_kind(size_t index, Painting::PaintableBox::ConflictingElementKind element_kind)
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{
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switch (element_kind) {
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case Painting::PaintableBox::ConflictingElementKind::Cell:
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case Painting::PaintableBox::ConflictingElementKind::Column:
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case Painting::PaintableBox::ConflictingElementKind::ColumnGroup: {
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return index;
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}
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default:
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return {};
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}
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}
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static BorderEdgePaintingInfo make_right_cell_edge(
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PaintContext& context,
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CSSPixelRect const& right_cell_rect,
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CSSPixelRect const& cell_rect,
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PaintableBox::BordersDataWithElementKind const& borders_data,
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CellCoordinates const& coordinates)
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{
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DevicePixelRect right_border_rect = {
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context.rounded_device_pixels(right_cell_rect.x() - round(borders_data.right.width / 2)),
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context.rounded_device_pixels(cell_rect.y() - round(borders_data.top.width / 2)),
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context.rounded_device_pixels(borders_data.right.width),
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context.rounded_device_pixels(max(cell_rect.height(), right_cell_rect.height()) + round(borders_data.top.width / 2) + round(borders_data.bottom.width / 2)),
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context.rounded_device_pixels(right_cell_rect.x() - round(borders_data.right.border_data.width / 2)),
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context.rounded_device_pixels(cell_rect.y() - round(borders_data.top.border_data.width / 2)),
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context.rounded_device_pixels(borders_data.right.border_data.width),
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context.rounded_device_pixels(max(cell_rect.height(), right_cell_rect.height()) + round(borders_data.top.border_data.width / 2) + round(borders_data.bottom.border_data.width / 2)),
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};
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return BorderEdgePaintingInfo {
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.rect = right_border_rect,
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.border_data = borders_data.right,
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.border_data_with_element_kind = borders_data.right,
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.direction = EdgeDirection::Vertical,
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.row = row_index_for_element_kind(coordinates.row_index, borders_data.right.element_kind),
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.column = column_index_for_element_kind(coordinates.column_index, borders_data.right.element_kind),
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};
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}
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static BorderEdgePaintingInfo make_down_cell_edge(PaintContext& context, CSSPixelRect const& down_cell_rect, CSSPixelRect const& cell_rect, BordersData const& borders_data)
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static BorderEdgePaintingInfo make_down_cell_edge(
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PaintContext& context,
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CSSPixelRect const& down_cell_rect,
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CSSPixelRect const& cell_rect,
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PaintableBox::BordersDataWithElementKind const& borders_data,
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CellCoordinates const& coordinates)
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{
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DevicePixelRect down_border_rect = {
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context.rounded_device_pixels(cell_rect.x() - round(borders_data.left.width / 2)),
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context.rounded_device_pixels(down_cell_rect.y() - round(borders_data.bottom.width / 2)),
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context.rounded_device_pixels(max(cell_rect.width(), down_cell_rect.width()) + round(borders_data.left.width / 2) + round(borders_data.right.width / 2)),
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context.rounded_device_pixels(borders_data.bottom.width),
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context.rounded_device_pixels(cell_rect.x() - round(borders_data.left.border_data.width / 2)),
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context.rounded_device_pixels(down_cell_rect.y() - round(borders_data.bottom.border_data.width / 2)),
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context.rounded_device_pixels(max(cell_rect.width(), down_cell_rect.width()) + round(borders_data.left.border_data.width / 2) + round(borders_data.right.border_data.width / 2)),
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context.rounded_device_pixels(borders_data.bottom.border_data.width),
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};
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return BorderEdgePaintingInfo {
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.rect = down_border_rect,
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.border_data = borders_data.bottom,
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.border_data_with_element_kind = borders_data.bottom,
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.direction = EdgeDirection::Horizontal,
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.row = row_index_for_element_kind(coordinates.row_index, borders_data.bottom.element_kind),
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.column = column_index_for_element_kind(coordinates.column_index, borders_data.bottom.element_kind),
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};
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}
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static BorderEdgePaintingInfo make_first_row_top_cell_edge(PaintContext& context, CSSPixelRect const& cell_rect, BordersData const& borders_data)
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static BorderEdgePaintingInfo make_first_row_top_cell_edge(PaintContext& context, CSSPixelRect const& cell_rect, PaintableBox::BordersDataWithElementKind const& borders_data, CellCoordinates const& coordinates)
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{
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DevicePixelRect top_border_rect = {
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context.rounded_device_pixels(cell_rect.x() - round(borders_data.left.width / 2)),
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context.rounded_device_pixels(cell_rect.y() - round(borders_data.top.width / 2)),
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context.rounded_device_pixels(cell_rect.x() - round(borders_data.left.border_data.width / 2)),
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context.rounded_device_pixels(cell_rect.y() - round(borders_data.top.border_data.width / 2)),
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context.rounded_device_pixels(cell_rect.width()),
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context.rounded_device_pixels(borders_data.top.width),
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context.rounded_device_pixels(borders_data.top.border_data.width),
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};
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return BorderEdgePaintingInfo {
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.rect = top_border_rect,
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.border_data = borders_data.top,
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.border_data_with_element_kind = borders_data.top,
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.direction = EdgeDirection::Horizontal,
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.row = row_index_for_element_kind(coordinates.row_index, borders_data.top.element_kind),
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.column = column_index_for_element_kind(coordinates.column_index, borders_data.top.element_kind),
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};
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}
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static BorderEdgePaintingInfo make_last_row_bottom_cell_edge(PaintContext& context, CSSPixelRect const& cell_rect, BordersData const& borders_data)
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static BorderEdgePaintingInfo make_last_row_bottom_cell_edge(PaintContext& context, CSSPixelRect const& cell_rect, PaintableBox::BordersDataWithElementKind const& borders_data, CellCoordinates const& coordinates)
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{
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DevicePixelRect bottom_border_rect = {
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context.rounded_device_pixels(cell_rect.x() - round(borders_data.left.width / 2)),
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context.rounded_device_pixels(cell_rect.y() + cell_rect.height() - round(borders_data.bottom.width / 2)),
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context.rounded_device_pixels(cell_rect.width() + round(borders_data.left.width / 2) + round(borders_data.right.width / 2)),
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context.rounded_device_pixels(borders_data.bottom.width),
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context.rounded_device_pixels(cell_rect.x() - round(borders_data.left.border_data.width / 2)),
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context.rounded_device_pixels(cell_rect.y() + cell_rect.height() - round(borders_data.bottom.border_data.width / 2)),
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context.rounded_device_pixels(cell_rect.width() + round(borders_data.left.border_data.width / 2) + round(borders_data.right.border_data.width / 2)),
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context.rounded_device_pixels(borders_data.bottom.border_data.width),
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};
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return BorderEdgePaintingInfo {
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.rect = bottom_border_rect,
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.border_data = borders_data.bottom,
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.border_data_with_element_kind = borders_data.bottom,
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.direction = EdgeDirection::Horizontal,
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.row = row_index_for_element_kind(coordinates.row_index, borders_data.bottom.element_kind),
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.column = column_index_for_element_kind(coordinates.column_index, borders_data.bottom.element_kind),
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};
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}
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static BorderEdgePaintingInfo make_first_column_left_cell_edge(PaintContext& context, CSSPixelRect const& cell_rect, BordersData const& borders_data)
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static BorderEdgePaintingInfo make_first_column_left_cell_edge(PaintContext& context, CSSPixelRect const& cell_rect, PaintableBox::BordersDataWithElementKind const& borders_data, CellCoordinates const& coordinates)
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{
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DevicePixelRect left_border_rect = {
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context.rounded_device_pixels(cell_rect.x() - round(borders_data.left.width / 2)),
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context.rounded_device_pixels(cell_rect.y() - round(borders_data.top.width / 2)),
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context.rounded_device_pixels(borders_data.left.width),
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context.rounded_device_pixels(cell_rect.height() + round(borders_data.top.width / 2)),
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context.rounded_device_pixels(cell_rect.x() - round(borders_data.left.border_data.width / 2)),
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context.rounded_device_pixels(cell_rect.y() - round(borders_data.top.border_data.width / 2)),
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context.rounded_device_pixels(borders_data.left.border_data.width),
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context.rounded_device_pixels(cell_rect.height() + round(borders_data.top.border_data.width / 2)),
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};
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return BorderEdgePaintingInfo {
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.rect = left_border_rect,
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.border_data = borders_data.left,
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.border_data_with_element_kind = borders_data.left,
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.direction = EdgeDirection::Vertical,
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.row = row_index_for_element_kind(coordinates.row_index, borders_data.left.element_kind),
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.column = column_index_for_element_kind(coordinates.column_index, borders_data.left.element_kind),
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};
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}
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static BorderEdgePaintingInfo make_last_column_right_cell_edge(PaintContext& context, CSSPixelRect const& cell_rect, BordersData const& borders_data)
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static BorderEdgePaintingInfo make_last_column_right_cell_edge(PaintContext& context, CSSPixelRect const& cell_rect, PaintableBox::BordersDataWithElementKind const& borders_data, CellCoordinates const& coordinates)
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{
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DevicePixelRect right_border_rect = {
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context.rounded_device_pixels(cell_rect.x() + cell_rect.width() - round(borders_data.right.width / 2)),
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context.rounded_device_pixels(cell_rect.y() - round(borders_data.top.width / 2)),
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context.rounded_device_pixels(borders_data.right.width),
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context.rounded_device_pixels(cell_rect.height() + round(borders_data.top.width / 2) + round(borders_data.bottom.width / 2)),
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context.rounded_device_pixels(cell_rect.x() + cell_rect.width() - round(borders_data.right.border_data.width / 2)),
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context.rounded_device_pixels(cell_rect.y() - round(borders_data.top.border_data.width / 2)),
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context.rounded_device_pixels(borders_data.right.border_data.width),
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context.rounded_device_pixels(cell_rect.height() + round(borders_data.top.border_data.width / 2) + round(borders_data.bottom.border_data.width / 2)),
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};
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return BorderEdgePaintingInfo {
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.rect = right_border_rect,
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.border_data = borders_data.right,
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.border_data_with_element_kind = borders_data.right,
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.direction = EdgeDirection::Vertical,
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.row = row_index_for_element_kind(coordinates.row_index, borders_data.right.element_kind),
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.column = column_index_for_element_kind(coordinates.column_index, borders_data.right.element_kind),
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};
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}
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@ -147,17 +197,38 @@ static void paint_collected_edges(PaintContext& context, Vector<BorderEdgePainti
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{
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// This sorting step isn't part of the specification, but it matches the behavior of other browsers at border intersections, which aren't
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// part of border conflict resolution in the specification but it's still desirable to handle them in a way which is consistent with it.
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// See https://www.w3.org/TR/CSS22/tables.html#border-conflict-resolution for reference.
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quick_sort(border_edge_painting_info_list, [](auto const& a, auto const& b) {
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return Layout::TableFormattingContext::border_is_less_specific(a.border_data, b.border_data);
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auto const& a_border_data = a.border_data_with_element_kind.border_data;
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auto const& b_border_data = b.border_data_with_element_kind.border_data;
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if (a_border_data.line_style == b_border_data.line_style && a_border_data.width == b_border_data.width) {
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if (b.border_data_with_element_kind.element_kind < a.border_data_with_element_kind.element_kind) {
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return true;
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} else if (b.border_data_with_element_kind.element_kind > a.border_data_with_element_kind.element_kind) {
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return false;
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}
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// Here the element kind is the same, thus the coordinates are either both set or not set.
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VERIFY(a.column.has_value() == b.column.has_value());
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VERIFY(a.row.has_value() == b.row.has_value());
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if (a.column.has_value()) {
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if (b.column.value() < a.column.value()) {
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return true;
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} else if (b.column.value() > a.column.value()) {
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return false;
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}
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}
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return a.row.has_value() ? b.row.value() < a.row.value() : false;
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}
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return Layout::TableFormattingContext::border_is_less_specific(a_border_data, b_border_data);
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});
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for (auto const& border_edge_painting_info : border_edge_painting_info_list) {
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auto const& border_data = border_edge_painting_info.border_data;
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CSSPixels width = border_data.width;
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auto const& border_data_with_element_kind = border_edge_painting_info.border_data_with_element_kind;
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CSSPixels width = border_data_with_element_kind.border_data.width;
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if (width <= 0)
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continue;
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auto color = border_data.color;
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auto border_style = border_data.line_style;
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auto color = border_data_with_element_kind.border_data.color;
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auto border_style = border_data_with_element_kind.border_data.line_style;
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auto p1 = border_edge_painting_info.rect.top_left();
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auto p2 = border_edge_painting_info.direction == EdgeDirection::Horizontal
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? border_edge_painting_info.rect.top_right()
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@ -194,31 +265,39 @@ void paint_table_collapsed_borders(PaintContext& context, Layout::Node const& bo
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column_count = max(column_count, cell_box->table_cell_coordinates()->column_index + cell_box->table_cell_coordinates()->column_span);
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}
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for (auto const cell_box : cell_boxes) {
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auto borders_data = cell_box->override_borders_data().has_value() ? cell_box->override_borders_data().value() : BordersData {
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.top = cell_box->box_model().border.top == 0 ? CSS::BorderData() : cell_box->computed_values().border_top(),
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.right = cell_box->box_model().border.right == 0 ? CSS::BorderData() : cell_box->computed_values().border_right(),
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.bottom = cell_box->box_model().border.bottom == 0 ? CSS::BorderData() : cell_box->computed_values().border_bottom(),
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.left = cell_box->box_model().border.left == 0 ? CSS::BorderData() : cell_box->computed_values().border_left(),
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auto borders_data = cell_box->override_borders_data().has_value() ? cell_box->override_borders_data().value() : PaintableBox::BordersDataWithElementKind {
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.top = { .border_data = cell_box->box_model().border.top == 0 ? CSS::BorderData() : cell_box->computed_values().border_top(), .element_kind = PaintableBox::ConflictingElementKind::Cell },
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.right = { .border_data = cell_box->box_model().border.right == 0 ? CSS::BorderData() : cell_box->computed_values().border_right(), .element_kind = PaintableBox::ConflictingElementKind::Cell },
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.bottom = { .border_data = cell_box->box_model().border.bottom == 0 ? CSS::BorderData() : cell_box->computed_values().border_bottom(), .element_kind = PaintableBox::ConflictingElementKind::Cell },
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.left = { .border_data = cell_box->box_model().border.left == 0 ? CSS::BorderData() : cell_box->computed_values().border_left(), .element_kind = PaintableBox::ConflictingElementKind::Cell },
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};
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auto cell_rect = cell_box->absolute_border_box_rect();
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auto maybe_right_cell = cell_coordinates_to_box.get(CellCoordinates {
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CellCoordinates right_cell_coordinates {
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.row_index = cell_box->table_cell_coordinates()->row_index,
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.column_index = cell_box->table_cell_coordinates()->column_index + cell_box->table_cell_coordinates()->column_span });
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auto maybe_down_cell = cell_coordinates_to_box.get(CellCoordinates {
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.column_index = cell_box->table_cell_coordinates()->column_index + cell_box->table_cell_coordinates()->column_span
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};
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auto maybe_right_cell = cell_coordinates_to_box.get(right_cell_coordinates);
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CellCoordinates down_cell_coordinates {
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.row_index = cell_box->table_cell_coordinates()->row_index + cell_box->table_cell_coordinates()->row_span,
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.column_index = cell_box->table_cell_coordinates()->column_index });
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.column_index = cell_box->table_cell_coordinates()->column_index
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};
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auto maybe_down_cell = cell_coordinates_to_box.get(down_cell_coordinates);
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if (maybe_right_cell.has_value())
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border_edge_painting_info_list.append(make_right_cell_edge(context, maybe_right_cell.value()->absolute_border_box_rect(), cell_rect, borders_data));
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border_edge_painting_info_list.append(make_right_cell_edge(context, maybe_right_cell.value()->absolute_border_box_rect(), cell_rect, borders_data, right_cell_coordinates));
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if (maybe_down_cell.has_value())
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border_edge_painting_info_list.append(make_down_cell_edge(context, maybe_down_cell.value()->absolute_border_box_rect(), cell_rect, borders_data));
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border_edge_painting_info_list.append(make_down_cell_edge(context, maybe_down_cell.value()->absolute_border_box_rect(), cell_rect, borders_data, down_cell_coordinates));
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if (cell_box->table_cell_coordinates()->row_index == 0)
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border_edge_painting_info_list.append(make_first_row_top_cell_edge(context, cell_rect, borders_data));
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border_edge_painting_info_list.append(make_first_row_top_cell_edge(context, cell_rect, borders_data,
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{ .row_index = 0, .column_index = cell_box->table_cell_coordinates()->column_index }));
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if (cell_box->table_cell_coordinates()->row_index + cell_box->table_cell_coordinates()->row_span == row_count)
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border_edge_painting_info_list.append(make_last_row_bottom_cell_edge(context, cell_rect, borders_data));
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border_edge_painting_info_list.append(make_last_row_bottom_cell_edge(context, cell_rect, borders_data,
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{ .row_index = row_count - 1, .column_index = cell_box->table_cell_coordinates()->column_index }));
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if (cell_box->table_cell_coordinates()->column_index == 0)
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border_edge_painting_info_list.append(make_first_column_left_cell_edge(context, cell_rect, borders_data));
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border_edge_painting_info_list.append(make_first_column_left_cell_edge(context, cell_rect, borders_data,
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{ .row_index = cell_box->table_cell_coordinates()->row_index, .column_index = 0 }));
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if (cell_box->table_cell_coordinates()->column_index + cell_box->table_cell_coordinates()->column_span == column_count)
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border_edge_painting_info_list.append(make_last_column_right_cell_edge(context, cell_rect, borders_data));
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border_edge_painting_info_list.append(make_last_column_right_cell_edge(context, cell_rect, borders_data,
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{ .row_index = cell_box->table_cell_coordinates()->row_index, .column_index = column_count - 1 }));
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}
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paint_collected_edges(context, border_edge_painting_info_list);
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@ -232,7 +311,7 @@ void paint_table_collapsed_borders(PaintContext& context, Layout::Node const& bo
|
|||
if (!top_left && !top_right && !bottom_left && !bottom_right) {
|
||||
continue;
|
||||
} else {
|
||||
auto borders_data = cell_box->override_borders_data().has_value() ? cell_box->override_borders_data().value() : BordersData {
|
||||
auto borders_data = cell_box->override_borders_data().has_value() ? PaintableBox::remove_element_kind_from_borders_data(cell_box->override_borders_data().value()) : BordersData {
|
||||
.top = cell_box->box_model().border.top == 0 ? CSS::BorderData() : cell_box->computed_values().border_top(),
|
||||
.right = cell_box->box_model().border.right == 0 ? CSS::BorderData() : cell_box->computed_values().border_right(),
|
||||
.bottom = cell_box->box_model().border.bottom == 0 ? CSS::BorderData() : cell_box->computed_values().border_bottom(),
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue