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LibWeb: Allow inline nodes to establish a stacking context

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With this change, a stacking context can be established by any
paintable, including inline paintables. The stacking context traversal
is updated to remove the assumption that the stacking context root is
paintable box.
This commit is contained in:
Aliaksandr Kalenik 2024-01-03 02:40:31 +01:00 • committed by Andreas Kling
parent 6c645f3a9f
commit 3cf5ad002a
12 changed files with 253 additions and 151 deletions
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38
Userland/Libraries/LibWeb/Painting/PaintableBox.cpp
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@ -40,16 +40,6 @@ PaintableBox::~PaintableBox()
{
}
bool PaintableBox::is_visible() const
{
return computed_values().visibility() == CSS::Visibility::Visible && computed_values().opacity() != 0;
}
void PaintableBox::invalidate_stacking_context()
{
m_stacking_context = nullptr;
}
PaintableWithLines::PaintableWithLines(Layout::BlockContainer const& layout_box)
: PaintableBox(layout_box)
{
@ -165,16 +155,6 @@ CSSPixelRect PaintableBox::absolute_paint_rect() const
return *m_absolute_paint_rect;
}
StackingContext* PaintableBox::enclosing_stacking_context()
{
for (auto* ancestor = parent(); ancestor; ancestor = ancestor->parent()) {
if (auto* stacking_context = ancestor->stacking_context_rooted_here())
return const_cast<StackingContext*>(stacking_context);
}
// We should always reach the viewport's stacking context.
VERIFY_NOT_REACHED();
}
Optional<CSSPixelRect> PaintableBox::get_clip_rect() const
{
auto clip = computed_values().clip();
@ -748,11 +728,6 @@ Layout::BlockContainer& PaintableWithLines::layout_box()
return static_cast<Layout::BlockContainer&>(PaintableBox::layout_box());
}
void PaintableBox::set_stacking_context(NonnullOwnPtr<StackingContext> stacking_context)
{
m_stacking_context = move(stacking_context);
}
Optional<HitTestResult> PaintableBox::hit_test(CSSPixelPoint position, HitTestType type) const
{
if (!is_visible())
@ -828,17 +803,4 @@ Optional<HitTestResult> PaintableWithLines::hit_test(CSSPixelPoint position, Hit
return {};
}
PaintableBox const* PaintableBox::nearest_scrollable_ancestor_within_stacking_context() const
{
auto* ancestor = parent();
while (ancestor) {
if (ancestor->stacking_context_rooted_here())
return nullptr;
if (ancestor->is_paintable_box() && static_cast<PaintableBox const*>(ancestor)->has_scrollable_overflow())
return static_cast<PaintableBox const*>(ancestor);
ancestor = ancestor->parent();
}
return nullptr;
}
}