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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).
103 lines
3.3 KiB
C++
103 lines
3.3 KiB
C++
/*
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* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.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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#include <LibWeb/Bindings/DOMPointReadOnlyPrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Geometry/DOMMatrix.h>
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#include <LibWeb/Geometry/DOMPointReadOnly.h>
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#include <LibWeb/HTML/StructuredSerialize.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::Geometry {
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GC_DEFINE_ALLOCATOR(DOMPointReadOnly);
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GC::Ref<DOMPointReadOnly> DOMPointReadOnly::construct_impl(JS::Realm& realm, double x, double y, double z, double w)
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{
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return realm.create<DOMPointReadOnly>(realm, x, y, z, w);
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}
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GC::Ref<DOMPointReadOnly> DOMPointReadOnly::create(JS::Realm& realm)
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{
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return realm.create<DOMPointReadOnly>(realm);
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}
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DOMPointReadOnly::DOMPointReadOnly(JS::Realm& realm, double x, double y, double z, double w)
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: PlatformObject(realm)
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, m_x(x)
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, m_y(y)
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, m_z(z)
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, m_w(w)
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{
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}
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DOMPointReadOnly::DOMPointReadOnly(JS::Realm& realm)
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: PlatformObject(realm)
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{
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}
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// https://drafts.fxtf.org/geometry/#dom-dompointreadonly-frompoint
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GC::Ref<DOMPointReadOnly> DOMPointReadOnly::from_point(JS::VM& vm, DOMPointInit const& other)
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{
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// The fromPoint(other) static method on DOMPointReadOnly must create a DOMPointReadOnly from the dictionary other.
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return construct_impl(*vm.current_realm(), other.x, other.y, other.z, other.w);
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}
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DOMPointReadOnly::~DOMPointReadOnly() = default;
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// https://drafts.fxtf.org/geometry/#dom-dompointreadonly-matrixtransform
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WebIDL::ExceptionOr<GC::Ref<DOMPoint>> DOMPointReadOnly::matrix_transform(DOMMatrixInit& matrix) const
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{
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// 1. Let matrixObject be the result of invoking create a DOMMatrix from the dictionary matrix.
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auto matrix_object = TRY(DOMMatrix::create_from_dom_matrix_init(realm(), matrix));
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// 2. Return the result of invoking transform a point with a matrix, given the current point and matrixObject. The current point does not get modified.
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return matrix_object->transform_point(*this);
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}
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void DOMPointReadOnly::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(DOMPointReadOnly);
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Base::initialize(realm);
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}
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WebIDL::ExceptionOr<void> DOMPointReadOnly::serialization_steps(HTML::TransferDataEncoder& serialized, bool, HTML::SerializationMemory&)
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{
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// 1. Set serialized.[[X]] to value’s x coordinate.
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serialized.encode(m_x);
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// 2. Set serialized.[[Y]] to value’s y coordinate.
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serialized.encode(m_y);
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// 3. Set serialized.[[Z]] to value’s z coordinate.
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serialized.encode(m_z);
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// 4. Set serialized.[[W]] to value’s w coordinate.
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serialized.encode(m_w);
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return {};
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}
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WebIDL::ExceptionOr<void> DOMPointReadOnly::deserialization_steps(HTML::TransferDataDecoder& serialized, HTML::DeserializationMemory&)
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{
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// 1. Set value’s x coordinate to serialized.[[X]].
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m_x = serialized.decode<double>();
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// 2. Set value’s y coordinate to serialized.[[Y]].
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m_y = serialized.decode<double>();
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// 3. Set value’s z coordinate to serialized.[[Z]].
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m_z = serialized.decode<double>();
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// 4. Set value’s w coordinate to serialized.[[W]].
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m_w = serialized.decode<double>();
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return {};
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}
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}
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