ladybird/Libraries/LibWeb/HTML/Scripting/ModuleMap.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

91 lines
2.2 KiB
C++

/*
* Copyright (c) 2022-2023, networkException <networkexception@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGC/Function.h>
#include <LibJS/Heap/Cell.h>
#include <LibURL/URL.h>
#include <LibWeb/HTML/Scripting/ModuleScript.h>
namespace Web::HTML {
class ModuleLocationTuple {
public:
ModuleLocationTuple(URL::URL url, ByteString type)
: m_url(move(url))
, m_type(move(type))
{
}
URL::URL const& url() const { return m_url; }
ByteString const& type() const { return m_type; }
bool operator==(ModuleLocationTuple const& other) const
{
return other.url() == m_url && other.type() == m_type;
}
private:
URL::URL m_url;
ByteString m_type;
};
// https://html.spec.whatwg.org/multipage/webappapis.html#module-map
class ModuleMap final : public JS::Cell {
GC_CELL(ModuleMap, JS::Cell);
GC_DECLARE_ALLOCATOR(ModuleMap);
public:
ModuleMap() = default;
~ModuleMap() = default;
enum class EntryType {
Fetching,
Failed,
ModuleScript
};
struct Entry {
EntryType type;
GC::Ptr<JavaScriptModuleScript> module_script;
};
using CallbackFunction = GC::Ref<GC::Function<void(Entry)>>;
bool is_fetching(URL::URL const& url, ByteString const& type) const;
bool is_failed(URL::URL const& url, ByteString const& type) const;
bool is(URL::URL const& url, ByteString const& type, EntryType) const;
Optional<Entry> get(URL::URL const& url, ByteString const& type) const;
AK::HashSetResult set(URL::URL const& url, ByteString const& type, Entry);
void wait_for_change(GC::Heap&, URL::URL const& url, ByteString const& type, Function<void(Entry)> callback);
private:
virtual void visit_edges(JS::Cell::Visitor&) override;
HashMap<ModuleLocationTuple, Entry> m_values;
HashMap<ModuleLocationTuple, Vector<CallbackFunction>> m_callbacks;
bool m_firing_callbacks { false };
};
}
namespace AK {
template<>
struct Traits<Web::HTML::ModuleLocationTuple> : public DefaultTraits<Web::HTML::ModuleLocationTuple> {
static unsigned hash(Web::HTML::ModuleLocationTuple const& tuple)
{
return pair_int_hash(tuple.url().to_byte_string().hash(), tuple.type().hash());
}
};
}