RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-29 17:35:06 +00:00
Code Issues Activity Actions

LibWeb: Ensure preceding offset is non-negative in float_box()

Browse source 
When calculating the edge offset of the next floating item based on the
offset of the preceding floating item, we need to ensure that the
preceding offset is always > 0. This isn't explicitly written in the
spec, but all other popular engines do that.

Fixes https://github.com/SerenityOS/serenity/issues/21023
This commit is contained in:
Aliaksandr Kalenik 2023-09-12 00:58:51 +02:00 • committed by Andreas Kling
parent 81ddad3fcf
commit d1e542999c
3 changed files with 51 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
View file

@ -962,7 +962,7 @@ void BlockFormattingContext::layout_floating_box(Box const& box, BlockContainer
CSSPixels tentative_offset_from_edge = 0;
bool fits_next_to_preceding_float = false;
if (side == FloatSide::Left) {
tentative_offset_from_edge = preceding_float.offset_from_edge + preceding_float_state.content_width() + preceding_float_state.margin_box_right() + box_state.margin_box_left();
tentative_offset_from_edge = max(preceding_float.offset_from_edge + preceding_float_state.content_width() + preceding_float_state.margin_box_right(), 0) + box_state.margin_box_left();
if (available_space.width.is_definite()) {
fits_next_to_preceding_float = (tentative_offset_from_edge + box_state.content_width() + box_state.margin_box_right()) <= available_space.width.to_px_or_zero();
} else if (available_space.width.is_max_content() || available_space.width.is_indefinite()) {