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LibWeb: Add a basic DOM::Position class

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This will be used for editable content. :^)
This commit is contained in:
Andreas Kling 2020-08-02 11:47:27 +02:00
parent 58240aedd9
commit e496a74bb3
4 changed files with 114 additions and 0 deletions
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49
Libraries/LibWeb/DOM/Position.cpp Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibWeb/DOM/Node.h>
#include <LibWeb/DOM/Position.h>
namespace Web::DOM {
Position::Position(Node& node, unsigned offset)
: m_node(node)
, m_offset(offset)
{
}
Position::~Position()
{
}
const LogStream& operator<<(const LogStream& stream, const Position& position)
{
if (!position.node())
return stream << "DOM::Position(nullptr, " << position.offset() << ")";
return stream << "DOM::Position(" << position.node()->node_name() << "{" << position.node() << "}, " << position.offset() << ")";
}
}