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https://github.com/LadybirdBrowser/ladybird.git
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64abc6101d
Our structured serialization implementation had its own bespoke encoder and decoder to serialize JS values. It also used a u32 buffer under the hood, which made using its structures a bit awkward. We had previously worked around its data structures in transferable streams, which nested transfers of MessagePort instances. We basically had to add hooks into the MessagePort to route to the correct transfer receiving steps, and we could not invoke the correct AOs directly as the spec dictates. We now use IPC mechanics to encode and decode data. This works because, although we are encoding JS values, we are only ultimately encoding primitive and basic AK types. The resulting data structures actually enforce that we implement transferable streams exactly as the spec is worded (I had planned to do that in a separate commit, but the fallout of this patch actually required that change).
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2024, Kenneth Myhra <kennethmyhra@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGfx/Rect.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Bindings/Serializable.h>
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#include <LibWeb/Forward.h>
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namespace Web::Geometry {
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// https://drafts.fxtf.org/geometry/#dictdef-domrectinit
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struct DOMRectInit {
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double x { 0.0 };
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double y { 0.0 };
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double width { 0.0 };
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double height { 0.0 };
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};
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// https://drafts.fxtf.org/geometry/#domrectreadonly
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class DOMRectReadOnly
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: public Bindings::PlatformObject
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, public Bindings::Serializable {
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WEB_PLATFORM_OBJECT(DOMRectReadOnly, Bindings::PlatformObject);
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GC_DECLARE_ALLOCATOR(DOMRectReadOnly);
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public:
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static WebIDL::ExceptionOr<GC::Ref<DOMRectReadOnly>> construct_impl(JS::Realm&, double x = 0, double y = 0, double width = 0, double height = 0);
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[[nodiscard]] static GC::Ref<DOMRectReadOnly> from_rect(JS::VM&, DOMRectInit const&);
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static GC::Ref<DOMRectReadOnly> create(JS::Realm&);
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virtual ~DOMRectReadOnly() override;
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double x() const { return m_rect.x(); }
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double y() const { return m_rect.y(); }
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double width() const { return m_rect.width(); }
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double height() const { return m_rect.height(); }
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double top() const
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{
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if (isnan(y()) || isnan(height()))
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return NAN;
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return min(y(), y() + height());
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}
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double right() const
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{
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if (isnan(x()) || isnan(width()))
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return NAN;
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return max(x(), x() + width());
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}
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double bottom() const
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{
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if (isnan(y()) || isnan(height()))
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return NAN;
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return max(y(), y() + height());
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}
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double left() const
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{
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if (isnan(x()) || isnan(width()))
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return NAN;
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return min(x(), x() + width());
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}
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virtual HTML::SerializeType serialize_type() const override { return HTML::SerializeType::DOMRectReadOnly; }
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virtual WebIDL::ExceptionOr<void> serialization_steps(HTML::TransferDataEncoder&, bool for_storage, HTML::SerializationMemory&) override;
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virtual WebIDL::ExceptionOr<void> deserialization_steps(HTML::TransferDataDecoder&, HTML::DeserializationMemory&) override;
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protected:
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DOMRectReadOnly(JS::Realm&, double x, double y, double width, double height);
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explicit DOMRectReadOnly(JS::Realm&);
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virtual void initialize(JS::Realm&) override;
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Gfx::DoubleRect m_rect;
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};
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}
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