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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/dom/abstract_range.h"
#include "third_party/blink/renderer/core/dom/character_data.h"
#include "third_party/blink/renderer/core/dom/container_node.h"
#include "third_party/blink/renderer/core/dom/node.h"
namespace blink {
AbstractRange::AbstractRange() = default;
AbstractRange::~AbstractRange() = default;
bool AbstractRange::HasDifferentRootContainer(Node* start_root_container,
Node* end_root_container) {
return start_root_container->TreeRoot() != end_root_container->TreeRoot();
}
unsigned AbstractRange::LengthOfContents(const Node* node) {
// This switch statement must be consistent with that of
// Range::processContentsBetweenOffsets.
switch (node->getNodeType()) {
case Node::kTextNode:
case Node::kCdataSectionNode:
case Node::kCommentNode:
case Node::kProcessingInstructionNode:
return To<CharacterData>(node)->length();
case Node::kElementNode:
case Node::kDocumentNode:
case Node::kDocumentFragmentNode:
return To<ContainerNode>(node)->CountChildren();
case Node::kAttributeNode:
case Node::kDocumentTypeNode:
return 0;
}
NOTREACHED();
}
} // namespace blink
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