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LibWeb: Add virtuals to check if Paintable is PBox or PWithLines

Instead of inferring the type of paintables by looking at the type of
their origin in the layout tree, let's ask them directly.
This commit is contained in:
Andreas Kling 2023-08-18 13:47:52 +02:00
parent 6b3af92262
commit 136ac1a6a5
4 changed files with 16 additions and 7 deletions

View file

@ -82,8 +82,8 @@ static CSSPixelRect measure_scrollable_overflow(Box const& box)
auto scrollable_overflow_rect = paintable_box.absolute_padding_box_rect();
// - All line boxes directly contained by the scroll container.
if (box.is_block_container() && box.children_are_inline()) {
auto const& line_boxes = verify_cast<Painting::PaintableWithLines>(*box.paintable_box()).line_boxes();
if (is<Painting::PaintableWithLines>(box.paintable())) {
auto const& line_boxes = static_cast<Painting::PaintableWithLines const&>(*box.paintable()).line_boxes();
for (auto const& line_box : line_boxes) {
scrollable_overflow_rect = scrollable_overflow_rect.united(line_box.absolute_rect());
}
@ -238,8 +238,7 @@ void LayoutState::commit(Box& root)
node.set_paintable(paintable);
// For boxes, transfer all the state needed for painting.
if (is<Layout::Box>(node)) {
auto& box = static_cast<Layout::Box const&>(node);
if (paintable && is<Painting::PaintableBox>(*paintable)) {
auto& paintable_box = static_cast<Painting::PaintableBox&>(*paintable);
paintable_box.set_offset(used_values.offset);
paintable_box.set_content_size(used_values.content_width(), used_values.content_height());
@ -250,7 +249,7 @@ void LayoutState::commit(Box& root)
paintable_box.set_table_cell_coordinates(used_values.table_cell_coordinates().value());
}
if (is<Layout::BlockContainer>(box)) {
if (is<Painting::PaintableWithLines>(paintable_box)) {
auto& paintable_with_lines = static_cast<Painting::PaintableWithLines&>(paintable_box);
paintable_with_lines.set_line_boxes(move(used_values.line_boxes));
paintables_with_lines.append(paintable_with_lines);