mirror of
https://github.com/RGBCube/serenity
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75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Node.h>
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#include <LibWeb/DOM/Range.h>
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#include <LibWeb/DOM/Window.h>
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namespace Web::DOM {
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Range::Range(Window& window)
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: m_start_container(window.document())
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, m_start_offset(0)
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, m_end_container(window.document())
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, m_end_offset(0)
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{
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}
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Range::Range(Node& start_container, size_t start_offset, Node& end_container, size_t end_offset)
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: m_start_container(start_container)
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, m_start_offset(start_offset)
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, m_end_container(end_container)
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, m_end_offset(end_offset)
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{
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}
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NonnullRefPtr<Range> Range::clone_range() const
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{
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return adopt(*new Range(const_cast<Node&>(*m_start_container), m_start_offset, const_cast<Node&>(*m_end_container), m_end_offset));
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}
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NonnullRefPtr<Range> Range::inverted() const
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{
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return adopt(*new Range(const_cast<Node&>(*m_end_container), m_end_offset, const_cast<Node&>(*m_start_container), m_start_offset));
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}
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NonnullRefPtr<Range> Range::normalized() const
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{
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if (m_start_container.ptr() == m_end_container.ptr()) {
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if (m_start_offset <= m_end_offset)
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return clone_range();
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return inverted();
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}
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if (m_start_container->is_before(m_end_container))
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return clone_range();
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return inverted();
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}
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}
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