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LibWeb: Check if corners have radius after converting to device pixels

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Check needs to happen after conversion because non-zero radius in
CSSPixels could turn into zero in device pixels.

Fixes https://github.com/SerenityOS/serenity/issues/22765
This commit is contained in:
Aliaksandr Kalenik 2024-01-15 14:23:08 +01:00 • committed by Andreas Kling
parent 6087d2feec
commit 64a48065b0
4 changed files with 27 additions and 5 deletions
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12
Tests/LibWeb/Layout/expected/misc/corner-radius.txt Normal file
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@ -0,0 +1,12 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x48 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 1x32 children: not-inline
BlockContainer <div> at (8,8) content-size 1x32 [BFC] children: inline
frag 0 from ImageBox start: 0, length: 0, rect: [8,8 16x32] baseline: 32
ImageBox <img> at (8,8) content-size 16x32 children: not-inline
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x48]
PaintableWithLines (BlockContainer<BODY>) [8,8 1x32]
PaintableWithLines (BlockContainer<DIV>) [8,8 1x32] overflow: [8,8 16x32]
ImagePaintable (ImageBox<IMG>) [8,8 16x32]

10
Tests/LibWeb/Layout/input/misc/corner-radius.html Normal file
View file

@ -0,0 +1,10 @@
<!doctype html><style>
body {
width: 1px;
}
div {
border-radius: 8px;
overflow: hidden;
}
/* Test passes if it renders without crashing. */
</style><body><div><img>

6
Userland/Libraries/LibWeb/Painting/BorderRadiusCornerClipper.cpp
View file

@ -111,17 +111,17 @@ void BorderRadiusCornerClipper::blit_corner_clipping(Gfx::Painter& painter)
ScopedCornerRadiusClip::ScopedCornerRadiusClip(PaintContext& context, DevicePixelRect const& border_rect, BorderRadiiData const& border_radii, CornerClip corner_clip)
: m_context(context)
, m_id(context.allocate_corner_clipper_id())
, m_has_radius(border_radii.has_any_radius())
, m_border_rect(border_rect)
{
if (!m_has_radius)
return;
CornerRadii const corner_radii {
.top_left = border_radii.top_left.as_corner(context),
.top_right = border_radii.top_right.as_corner(context),
.bottom_right = border_radii.bottom_right.as_corner(context),
.bottom_left = border_radii.bottom_left.as_corner(context)
};
m_has_radius = corner_radii.has_any_radius();
if (!m_has_radius)
return;
m_context.recording_painter().sample_under_corners(m_id, corner_radii, border_rect.to_type<int>(), corner_clip);
}

4
Userland/Libraries/LibWeb/Painting/PaintableBox.cpp
View file

@ -438,7 +438,7 @@ void PaintableBox::apply_clip_overflow_rect(PaintContext& context, PaintPhase ph
.bottom_right = border_radii_data.bottom_right.as_corner(context),
.bottom_left = border_radii_data.bottom_left.as_corner(context)
};
if (border_radii_data.has_any_radius()) {
if (corner_radii.has_any_radius()) {
VERIFY(!m_corner_clipper_id.has_value());
m_corner_clipper_id = context.allocate_corner_clipper_id();
context.recording_painter().sample_under_corners(*m_corner_clipper_id, corner_radii, context.rounded_device_rect(*clip_rect).to_type<int>(), CornerClip::Outside);
@ -648,7 +648,7 @@ void PaintableWithLines::paint(PaintContext& context, PaintPhase phase) const
.bottom_right = border_radii.bottom_right.as_corner(context),
.bottom_left = border_radii.bottom_left.as_corner(context)
};
if (border_radii.has_any_radius()) {
if (corner_radii.has_any_radius()) {
corner_clip_id = context.allocate_corner_clipper_id();
context.recording_painter().sample_under_corners(*corner_clip_id, corner_radii, clip_box.to_type<int>(), CornerClip::Outside);
}