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LibWeb: Remove Layout::Node::m_visible and compute it on the fly

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This fixes an issue where the value would be out of sync with reality
in anonymous wrapper block boxes, since we forgot to compute m_visible
after assigning the computed values to them.

Fixes #21106
This commit is contained in:
Andreas Kling 2023-09-18 13:08:20 +02:00
parent 0a133ccba4
commit 1f69e9cddf
Notes: sideshowbarker 2024-07-16 18:03:21 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/1f69e9cddf
Pull-request: https://github.com/SerenityOS/serenity/pull/21138
Issue: https://github.com/SerenityOS/serenity/issues/21106
8 changed files with 32 additions and 9 deletions
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12
Tests/LibWeb/Ref/anonymous-wrapper-css-visibility.html Normal file
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@ -0,0 +1,12 @@
<!doctype html>
<link rel="match" href="reference/anonymous-wrapper-css-visibility-ref.html" />
<style>
body {
visibility: hidden;
}
body:after {
visibility: visible;
display: block;
content: "Visible";
}
</style><body>Hidden

12
Tests/LibWeb/Ref/reference/anonymous-wrapper-css-visibility-ref.html Normal file
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@ -0,0 +1,12 @@
<!doctype html>
<link rel="match" href="reference/anonymous-wrapper-css-visibility-ref.html" />
<style>
body {
color: transparent;
}
body:after {
color: black;
display: block;
content: "Visible";
}
</style><body>Hidden

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

@ -640,8 +640,6 @@ void NodeWithStyle::apply_style(const CSS::StyleProperties& computed_style)
if (auto maybe_visibility = computed_style.visibility(); maybe_visibility.has_value())
computed_values.set_visibility(maybe_visibility.release_value());
m_visible = computed_values.opacity() != 0 && computed_values.visibility() == CSS::Visibility::Visible;
computed_values.set_width(computed_style.size_value(CSS::PropertyID::Width));
computed_values.set_min_width(computed_style.size_value(CSS::PropertyID::MinWidth));
computed_values.set_max_width(computed_style.size_value(CSS::PropertyID::MaxWidth));

4
Userland/Libraries/LibWeb/Layout/Node.h
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@ -156,9 +156,6 @@ public:
void removed_from(Node&) { }
void children_changed() { }
bool is_visible() const { return m_visible; }
void set_visible(bool visible) { m_visible = visible; }
virtual void set_needs_display();
bool children_are_inline() const { return m_children_are_inline; }
@ -194,7 +191,6 @@ private:
bool m_anonymous { false };
bool m_has_style { false };
bool m_visible { true };
bool m_children_are_inline { false };
SelectionState m_selection_state { SelectionState::None };

2
Userland/Libraries/LibWeb/Painting/CanvasPaintable.cpp
View file

@ -25,7 +25,7 @@ Layout::CanvasBox const& CanvasPaintable::layout_box() const
void CanvasPaintable::paint(PaintContext& context, PaintPhase phase) const
{
if (!layout_box().is_visible())
if (!is_visible())
return;
PaintableBox::paint(context, phase);

2
Userland/Libraries/LibWeb/Painting/NestedBrowsingContextPaintable.cpp
View file

@ -31,7 +31,7 @@ Layout::FrameBox const& NestedBrowsingContextPaintable::layout_box() const
void NestedBrowsingContextPaintable::paint(PaintContext& context, PaintPhase phase) const
{
if (!layout_box().is_visible())
if (!is_visible())
return;
PaintableBox::paint(context, phase);

5
Userland/Libraries/LibWeb/Painting/PaintableBox.cpp
View file

@ -40,6 +40,11 @@ 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;

2
Userland/Libraries/LibWeb/Painting/PaintableBox.h
View file

@ -25,7 +25,7 @@ public:
virtual void paint(PaintContext&, PaintPhase) const override;
bool is_visible() const { return layout_box().is_visible(); }
[[nodiscard]] bool is_visible() const;
Layout::Box& layout_box() { return static_cast<Layout::Box&>(Paintable::layout_node()); }
Layout::Box const& layout_box() const { return static_cast<Layout::Box const&>(Paintable::layout_node()); }