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LibWeb+LibJS: Make the EventTarget hierarchy (incl. DOM) GC-allocated

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This is a monster patch that turns all EventTargets into GC-allocated
PlatformObjects. Their C++ wrapper classes are removed, and the LibJS
garbage collector is now responsible for their lifetimes.

There's a fair amount of hacks and band-aids in this patch, and we'll
have a lot of cleanup to do after this.
This commit is contained in:
Andreas Kling 2022-08-28 13:42:07 +02:00
parent bb547ce1c4
commit 6f433c8656
445 changed files with 4797 additions and 4268 deletions
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8
Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.h
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@ -34,10 +34,10 @@ namespace Web::HTML {
// https://html.spec.whatwg.org/multipage/canvas.html#canvasimagesource
// NOTE: This is the Variant created by the IDL wrapper generator, and needs to be updated accordingly.
using CanvasImageSource = Variant<NonnullRefPtr<HTMLImageElement>, NonnullRefPtr<HTMLCanvasElement>>;
using CanvasImageSource = Variant<JS::Handle<HTMLImageElement>, JS::Handle<HTMLCanvasElement>>;
class CanvasRenderingContext2D
: public RefCountForwarder<HTMLCanvasElement>
: public RefCounted<CanvasRenderingContext2D>
, public Bindings::Wrappable
, public CanvasPath
, public CanvasState
@ -81,7 +81,7 @@ public:
virtual void reset_to_default_state() override;
NonnullRefPtr<HTMLCanvasElement> canvas_for_binding() const;
JS::NonnullGCPtr<HTMLCanvasElement> canvas_for_binding() const;
virtual RefPtr<TextMetrics> measure_text(String const& text) override;
@ -112,6 +112,8 @@ private:
void stroke_internal(Gfx::Path const&);
void fill_internal(Gfx::Path&, String const& fill_rule);
JS::Handle<HTMLCanvasElement> m_element;
// https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-origin-clean
bool m_origin_clean { true };
};