ladybird/Libraries/LibWeb/WebIDL/ObservableArray.h
Aliaksandr Kalenik cf57efd252 LibWeb: Unload fonts when adopted style sheet is removed
Add missing unloading step that we do for regular style sheets but
mistakenly missed for adopted style sheets.
2025-01-10 19:12:48 +03:00

58 lines
2.2 KiB
C++

/*
* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/Array.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
namespace Web::WebIDL {
// https://webidl.spec.whatwg.org/#idl-observable-array
class ObservableArray final : public JS::Array {
JS_OBJECT(ObservableArray, JS::Array);
GC_DECLARE_ALLOCATOR(ObservableArray);
public:
static GC::Ref<ObservableArray> create(JS::Realm& realm);
virtual JS::ThrowCompletionOr<bool> internal_set(JS::PropertyKey const& property_key, JS::Value value, JS::Value receiver, JS::CacheablePropertyMetadata* metadata = nullptr) override;
virtual JS::ThrowCompletionOr<bool> internal_delete(JS::PropertyKey const& property_key) override;
using SetAnIndexedValueCallbackFunction = Function<ExceptionOr<void>(JS::Value&)>;
using DeleteAnIndexedValueCallbackFunction = Function<ExceptionOr<void>(JS::Value)>;
void set_on_set_an_indexed_value_callback(SetAnIndexedValueCallbackFunction&& callback);
void set_on_delete_an_indexed_value_callback(DeleteAnIndexedValueCallbackFunction&& callback);
JS::ThrowCompletionOr<void> append(JS::Value value);
void clear();
template<typename T, typename Callback>
void for_each(Callback callback)
{
for (auto& entry : indexed_properties()) {
auto value_and_attributes = indexed_properties().storage()->get(entry.index());
if (value_and_attributes.has_value()) {
auto& style_sheet = verify_cast<T>(value_and_attributes->value.as_object());
callback(style_sheet);
}
}
}
explicit ObservableArray(Object& prototype);
virtual void visit_edges(JS::Cell::Visitor&) override;
private:
using SetAnIndexedValueCallbackHeapFunction = GC::Function<SetAnIndexedValueCallbackFunction::FunctionType>;
using DeleteAnIndexedValueCallbackHeapFunction = GC::Function<DeleteAnIndexedValueCallbackFunction::FunctionType>;
GC::Ptr<SetAnIndexedValueCallbackHeapFunction> m_on_set_an_indexed_value;
GC::Ptr<DeleteAnIndexedValueCallbackHeapFunction> m_on_delete_an_indexed_value;
};
}