| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_DOM_MUTATION_RECORD_H_ |
| #define COBALT_DOM_MUTATION_RECORD_H_ |
| |
| #include <string> |
| |
| #include "base/optional.h" |
| #include "cobalt/base/token.h" |
| #include "cobalt/script/wrappable.h" |
| |
| namespace cobalt { |
| namespace dom { |
| |
| class Node; |
| class NodeList; |
| |
| // MutationRecords are used with the MutationObserver interface to describe a |
| // mutation on the documnet. |
| // https://www.w3.org/TR/dom/#mutationrecord |
| class MutationRecord : public script::Wrappable { |
| public: |
| // Web API: MutationRecord |
| const base::Token& type() { return type_; } |
| const scoped_refptr<dom::Node>& target() { return target_; } |
| const scoped_refptr<dom::NodeList>& added_nodes() { return added_nodes_; } |
| const scoped_refptr<dom::NodeList>& removed_nodes() { return removed_nodes_; } |
| const scoped_refptr<dom::Node>& previous_sibling() { |
| return previous_sibling_; |
| } |
| const scoped_refptr<dom::Node>& next_sibling() { return next_sibling_; } |
| const base::optional<std::string>& attribute_name() { |
| return attribute_name_; |
| } |
| const base::optional<std::string>& attribute_namespace() { |
| return attribute_namespace_; |
| } |
| const base::optional<std::string>& old_value() { return old_value_; } |
| |
| // Not part of the MutationRecord interface. These create functions implement |
| // the part of the "queueing a mutation record" algorithm pertaining to |
| // creating a new Mutation Record (step 4). |
| // https://www.w3.org/TR/dom/#queue-a-mutation-record |
| static scoped_refptr<MutationRecord> CreateAttributeMutationRecord( |
| const scoped_refptr<Node>& target, const std::string& attribute_name, |
| const base::optional<std::string>& old_value); |
| |
| static scoped_refptr<MutationRecord> CreateCharacterDataMutationRecord( |
| const scoped_refptr<Node>& target, |
| const base::optional<std::string>& old_character_data); |
| |
| static scoped_refptr<MutationRecord> CreateChildListMutationRecord( |
| const scoped_refptr<Node>& target, |
| const scoped_refptr<dom::NodeList>& added_nodes, |
| const scoped_refptr<dom::NodeList>& removed_nodes, |
| const scoped_refptr<dom::Node>& previous_sibling, |
| const scoped_refptr<dom::Node>& next_sibling); |
| |
| DEFINE_WRAPPABLE_TYPE(MutationRecord); |
| void TraceMembers(script::Tracer* tracer) override; |
| |
| private: |
| MutationRecord(const base::Token& type, const scoped_refptr<Node>& target); |
| ~MutationRecord(); |
| |
| base::Token type_; |
| scoped_refptr<dom::Node> target_; |
| scoped_refptr<dom::NodeList> added_nodes_; |
| scoped_refptr<dom::NodeList> removed_nodes_; |
| scoped_refptr<dom::Node> previous_sibling_; |
| scoped_refptr<dom::Node> next_sibling_; |
| base::optional<std::string> attribute_name_; |
| base::optional<std::string> attribute_namespace_; |
| base::optional<std::string> old_value_; |
| }; |
| } // namespace dom |
| } // namespace cobalt |
| #endif // COBALT_DOM_MUTATION_RECORD_H_ |