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LibWeb: Fix divisions by zero in FFC and GFC

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This is the preparation to use fixed-point to represent CSSPixels.
Previously, it was acceptable to divide CSSPixels by zero, resulting
in inf, but after migrating to fixed-point stored as an integer, it
would lead to undefined behavior.
This commit is contained in:
Aliaksandr Kalenik 2023-07-24 13:16:25 +02:00 • committed by Andreas Kling
parent d216621d2a
commit 5cdd03fc53
2 changed files with 7 additions and 1 deletions
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2
Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
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@ -1301,7 +1301,7 @@ void FlexFormattingContext::distribute_any_remaining_free_space()
CSSPixels initial_offset = 0;
auto number_of_items = flex_line.items.size();
if (auto_margins == 0) {
if (auto_margins == 0 && number_of_items > 0) {
switch (flex_container().computed_values().justify_content()) {
case CSS::JustifyContent::Start:
case CSS::JustifyContent::FlexStart: