ladybird/Userland/Libraries/LibWeb/DOM/Position.h
Andrew Kaster 8de7e49a56 LibWeb: Remove unecessary dependence on Window from DOM and WebIDL
These classes only needed Window to get at its realm. Pass a realm
directly to construct DOM and WebIDL classes.

This change importantly removes the guarantee that a Document will
always have a non-null Window object. Only Documents created by a
BrowsingContext will have a non-null Window object. Documents created by
for example, DocumentFragment, will not have a Window (soon).

This incremental commit leaves some workarounds in place to keep other
parts of the code building.
2022-10-01 21:05:32 +01:00

61 lines
1.3 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Max Wipfli <mail@maxwipfli.ch>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/RefPtr.h>
#include <LibJS/Heap/Handle.h>
#include <LibWeb/DOM/Node.h>
#include <LibWeb/Forward.h>
namespace Web::DOM {
class Position {
public:
Position() = default;
Position(Node&, unsigned offset);
bool is_valid() const { return m_node.ptr(); }
Node* node() { return m_node.cell(); }
Node const* node() const { return m_node.cell(); }
unsigned offset() const { return m_offset; }
bool offset_is_at_end_of_node() const;
void set_offset(unsigned value) { m_offset = value; }
bool increment_offset();
bool decrement_offset();
bool operator==(Position const& other) const
{
return m_node.ptr() == other.m_node.ptr() && m_offset == other.m_offset;
}
bool operator!=(Position const& other) const
{
return !(*this == other);
}
String to_string() const;
private:
JS::Handle<Node> m_node;
unsigned m_offset { 0 };
};
}
namespace AK {
template<>
struct Formatter<Web::DOM::Position> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder& builder, Web::DOM::Position const& value)
{
return Formatter<StringView>::format(builder, value.to_string());
}
};
}