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LibWeb: Handle position:absolute with both left and right specified

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In this case, we need to undo the right-side offsetting, since the
width computation algorithm will already have stretched the width to
accomodate both the side constraints.
This commit is contained in:
Andreas Kling 2020-06-23 20:05:35 +02:00
parent 72eb13d8e4
commit 86098505ec
1 changed files with 10 additions and 2 deletions
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12
Libraries/LibWeb/Layout/LayoutBlock.cpp
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@ -103,9 +103,17 @@ void LayoutBlock::layout_absolutely_positioned_descendant(LayoutBox& box)
- box_model.offset().bottom.to_px(box)
- box_model.border_box(box).bottom;
if (!box_model.offset().left.is_auto() || !box_model.margin().left.is_auto()) {
bool has_left_side_constraints = !box_model.offset().left.is_auto() || !box_model.margin().left.is_auto();
bool has_right_side_constraints = !box_model.offset().right.is_auto() || !box_model.margin().right.is_auto();
if (has_left_side_constraints && has_right_side_constraints) {
// If both 'left' and 'right' are set, we will have stretched the width to accomodate both.
x_offset += box_model.offset().right.to_px(box);
}
if (has_left_side_constraints) {
used_offset.set_x(x_offset + box_model.margin().left.to_px(box));
} else if (!box_model.offset().right.is_auto() || !box_model.margin().right.is_auto()) {
} else if (has_right_side_constraints) {
used_offset.set_x(width() + x_offset - box.width() - box_model.margin().right.to_px(box));
}