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LibWeb: Apply transform origin in Element::get_client_rects()

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Bastiaan van der Plaat 2024-03-06 21:39:30 +01:00 • committed by Alexander Kalenik
parent 5a20353bc4
commit 76f767c867
3 changed files with 8 additions and 5 deletions
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2
Tests/LibWeb/Text/expected/element-get-bounding-client-rect-css-transform.txt
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@ -1 +1 @@
{"x":68,"y":118,"width":100,"height":100,"top":118,"right":168,"bottom":218,"left":68}
{"x":18,"y":68,"width":200,"height":200,"top":68,"right":218,"bottom":268,"left":18}

2
Tests/LibWeb/Text/input/element-get-bounding-client-rect-css-transform.html
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@ -13,7 +13,7 @@
width: 100px;
height: 100px;
opacity: 0.1;
transform: translate(10px, 10px);
transform: translate(10px, 10px) scale(2);
}
</style>
<div class="transform-1">

9
Userland/Libraries/LibWeb/DOM/Element.cpp
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@ -923,14 +923,17 @@ JS::NonnullGCPtr<Geometry::DOMRectList> Element::get_client_rects() const
Gfx::AffineTransform transform;
for (auto const* containing_block = this->paintable_box(); containing_block; containing_block = containing_block->containing_block()) {
transform = transform.multiply(Gfx::extract_2d_affine_transform(containing_block->transform()));
transform = Gfx::extract_2d_affine_transform(containing_block->transform()).multiply(transform);
}
auto const* paintable = this->paintable();
if (auto const* paintable_box = this->paintable_box()) {
auto absolute_rect = paintable_box->absolute_border_box_rect();
absolute_rect.translate_by(-viewport_offset.x(), -viewport_offset.y());
rects.append(Geometry::DOMRect::create(realm(), transform.map(absolute_rect.to_type<float>())));
auto transformed_rect = transform.map(absolute_rect.translated(-paintable_box->transform_origin()).to_type<float>())
.to_type<CSSPixels>()
.translated(paintable_box->transform_origin())
.translated(-viewport_offset);
rects.append(Geometry::DOMRect::create(realm(), transformed_rect.to_type<float>()));
} else if (paintable && is<Painting::InlinePaintable>(*paintable)) {
auto const& inline_paintable = static_cast<Painting::InlinePaintable const&>(*paintable);
auto absolute_rect = inline_paintable.bounding_rect();