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LibWeb: Make DisplayList ref-counted

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This change is a preparation for the upcoming changes where display
list will be nested and the same display could be owned by multiple
display list items.
This commit is contained in:
Aliaksandr Kalenik 2024-07-24 18:48:14 +03:00 committed by Andreas Kling
parent e8b7c88881
commit 50ab5642cc
Notes: github-actions[bot] 2024-07-25 12:34:42 +00:00 
Author: https://github.com/kalenikaliaksandr
Commit: https://github.com/LadybirdBrowser/ladybird/commit/50ab5642cc1
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/826
4 changed files with 12 additions and 5 deletions
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2
Userland/Libraries/LibWeb/HTML/TraversableNavigable.cpp
View file

@ -1190,7 +1190,7 @@ JS::GCPtr<DOM::Node> TraversableNavigable::currently_focused_area()
void TraversableNavigable::paint(DevicePixelRect const& content_rect, Painting::BackingStore& target, PaintOptions paint_options)
{
Painting::DisplayList display_list;
auto display_list = Painting::DisplayList::create();
Painting::DisplayListRecorder display_list_recorder(display_list);
Gfx::IntRect bitmap_rect { {}, content_rect.size().to_type<int>() };

9
Userland/Libraries/LibWeb/Painting/DisplayList.h
View file

@ -73,8 +73,13 @@ private:
virtual bool would_be_fully_clipped_by_painter(Gfx::IntRect) const = 0;
};
class DisplayList {
class DisplayList : public RefCounted<DisplayList> {
public:
static NonnullRefPtr<DisplayList> create()
{
return adopt_ref(*new DisplayList());
}
void append(Command&& command, Optional<i32> scroll_frame_id);
void apply_scroll_offsets(Vector<Gfx::IntPoint> const& offsets_by_frame_id);
@ -89,6 +94,8 @@ public:
AK::SegmentedVector<CommandListItem, 512> const& commands() const { return m_commands; }
private:
DisplayList() = default;
AK::SegmentedVector<CommandListItem, 512> m_commands;
};

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

@ -81,8 +81,8 @@ RefPtr<Gfx::Bitmap> SVGMaskable::calculate_mask_of_svg(PaintContext& context, CS
if (mask_bitmap_or_error.is_error())
return {};
mask_bitmap = mask_bitmap_or_error.release_value();
DisplayList display_list;
DisplayListRecorder display_list_recorder(display_list);
auto display_list = DisplayList::create();
DisplayListRecorder display_list_recorder(*display_list);
display_list_recorder.translate(-mask_rect.location().to_type<int>());
auto paint_context = context.clone(display_list_recorder);
paint_context.set_svg_transform(graphics_element.get_transform());

2
Userland/Libraries/LibWeb/SVG/SVGDecodedImageData.cpp
View file

@ -92,7 +92,7 @@ RefPtr<Gfx::Bitmap> SVGDecodedImageData::render(Gfx::IntSize size) const
m_document->navigable()->set_viewport_size(size.to_type<CSSPixels>());
m_document->update_layout();
Painting::DisplayList display_list;
auto display_list = Painting::DisplayList::create();
Painting::DisplayListRecorder display_list_recorder(display_list);
m_document->navigable()->record_display_list(display_list_recorder, {});