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/*
* Copyright (c) 2020, the SerenityOS developers.
* 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/Document.h>
#include <LibWeb/DOM/Node.h>
#include <LibWeb/DOM/Range.h>
#include <LibWeb/DOM/Window.h>
namespace Web::DOM {
Range::Range(Window& window)
: m_start_container(window.document())
, m_start_offset(0)
, m_end_container(window.document())
, m_end_offset(0)
{
}
Range::Range(Node& start_container, size_t start_offset, Node& end_container, size_t end_offset)
: m_start_container(start_container)
, m_start_offset(start_offset)
, m_end_container(end_container)
, m_end_offset(end_offset)
{
}
NonnullRefPtr<Range> Range::clone_range() const
{
return adopt(*new Range(const_cast<Node&>(*m_start_container), m_start_offset, const_cast<Node&>(*m_end_container), m_end_offset));
}
NonnullRefPtr<Range> Range::inverted() const
{
return adopt(*new Range(const_cast<Node&>(*m_end_container), m_end_offset, const_cast<Node&>(*m_start_container), m_start_offset));
}
NonnullRefPtr<Range> Range::normalized() const
{
if (m_start_container.ptr() == m_end_container.ptr()) {
if (m_start_offset <= m_end_offset)
return clone_range();
return inverted();
}
if (m_start_container->is_before(m_end_container))
return clone_range();
return inverted();
}
}
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