third_party/WebKit/Source/core/dom/StaticRange.cpp

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// https://discourse.wicg.io/t/proposal-staticrange-to-be-used-instead-of-range-for-new-apis/1472

#include "core/dom/StaticRange.h"

#include "bindings/core/v8/ExceptionState.h"
#include "bindings/core/v8/ScriptState.h"
#include "core/dom/Range.h"
#include "core/frame/LocalDOMWindow.h"

namespace blink {

StaticRange::StaticRange(Document& document)
    : m_ownerDocument(document),
      m_startContainer(nullptr),
      m_startOffset(0),
      m_endContainer(nullptr),
      m_endOffset(0) {}

StaticRange::StaticRange(Document& document,
                         Node* startContainer,
                         int startOffset,
                         Node* endContainer,
                         int endOffset)
    : m_ownerDocument(document),
      m_startContainer(startContainer),
      m_startOffset(startOffset),
      m_endContainer(endContainer),
      m_endOffset(endOffset) {}

void StaticRange::setStart(Node* container, int offset) {
  m_startContainer = container;
  m_startOffset = offset;
}

void StaticRange::setEnd(Node* container, int offset) {
  m_endContainer = container;
  m_endOffset = offset;
}

Range* StaticRange::toRange(ExceptionState& exceptionState) const {
  Range* range = Range::create(*m_ownerDocument.get());
  // Do the offset checking.
  range->setStart(m_startContainer, m_startOffset, exceptionState);
  range->setEnd(m_endContainer, m_endOffset, exceptionState);
  return range;
}

DEFINE_TRACE(StaticRange) {
  visitor->trace(m_ownerDocument);
  visitor->trace(m_startContainer);
  visitor->trace(m_endContainer);
}

}  // namespace blink