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LibWeb: Don't attempt to layout the inside of childless boxes

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Some boxes cannot have children (most commonly replaced elements),
and so there is nothing meaningful inside them to layout.

We now use the can_have_children() flag to quickly skip over such boxes
instead of creating a formatting context and other pointless busywork.
This commit is contained in:
Andreas Kling 2021-10-06 21:42:42 +02:00
parent d9e0fd8823
commit dfeb4550d5
Notes: sideshowbarker 2024-07-18 02:59:38 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/dfeb4550d54
1 changed files with 3 additions and 0 deletions
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Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
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@ -76,6 +76,9 @@ bool FormattingContext::creates_block_formatting_context(const Box& box)
void FormattingContext::layout_inside(Box& child_box, LayoutMode layout_mode)
{
if (!child_box.can_have_children())
return;
if (is<SVGSVGBox>(child_box)) {
SVGFormattingContext context(child_box, this);
context.run(child_box, layout_mode);