| // Copyright 2014 The Cobalt Authors. 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_CSS_PARSER_PARSER_H_ |
| #define COBALT_CSS_PARSER_PARSER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "cobalt/cssom/css_parser.h" |
| |
| namespace cobalt { |
| namespace css_parser { |
| |
| class Parser : public cssom::CSSParser { |
| public: |
| enum SupportsMapToMeshFlag { |
| kSupportsMapToMesh, |
| // Additionally supports map-to-mesh on rectangular video. |
| kSupportsMapToMeshRectangular, |
| kDoesNotSupportMapToMesh, |
| }; |
| |
| // The parameter |supports_map_to_mesh| can be used to toggle parser support |
| // for the map-to-mesh CSS filter. If disabled, "filter: map-to-mesh(...)" |
| // will result in a parse error. |
| static std::unique_ptr<Parser> Create( |
| SupportsMapToMeshFlag supports_map_to_mesh = kSupportsMapToMesh); |
| ~Parser(); |
| |
| scoped_refptr<cssom::CSSStyleSheet> ParseStyleSheet( |
| const std::string& input, |
| const base::SourceLocation& input_location) override; |
| |
| scoped_refptr<cssom::CSSRule> ParseRule( |
| const std::string& input, |
| const base::SourceLocation& input_location) override; |
| |
| scoped_refptr<cssom::CSSDeclaredStyleData> ParseStyleDeclarationList( |
| const std::string& input, |
| const base::SourceLocation& input_location) override; |
| |
| scoped_refptr<cssom::CSSFontFaceDeclarationData> ParseFontFaceDeclarationList( |
| const std::string& input, |
| const base::SourceLocation& input_location) override; |
| |
| scoped_refptr<cssom::PropertyValue> ParsePropertyValue( |
| const std::string& property_name, const std::string& property_value, |
| const base::SourceLocation& property_location) override; |
| |
| void ParsePropertyIntoDeclarationData( |
| const std::string& property_name, const std::string& property_value, |
| const base::SourceLocation& property_location, |
| cssom::CSSDeclarationData* declaration_data) override; |
| |
| scoped_refptr<cssom::MediaList> ParseMediaList( |
| const std::string& media_list, |
| const base::SourceLocation& input_location) override; |
| |
| scoped_refptr<cssom::MediaQuery> ParseMediaQuery( |
| const std::string& media_query, |
| const base::SourceLocation& input_location) override; |
| |
| private: |
| typedef base::Callback<void(const std::string& message)> OnMessageCallback; |
| |
| enum MessageVerbosity { |
| // With message verbosity set to kShort, expect to see a one line message |
| // indicating the error/warning and that is it. This is useful for testing. |
| kShort, |
| |
| // With message verbosity set to kVerbose, expect to see information such |
| // as the line that caused the error to be output, allong with an arrow |
| // pointing to where the error occurred on the line. |
| kVerbose, |
| }; |
| |
| Parser(const OnMessageCallback& on_warning_callback, |
| const OnMessageCallback& on_error_callback, |
| MessageVerbosity message_verbosity, |
| SupportsMapToMeshFlag supports_map_to_mesh); |
| |
| const OnMessageCallback on_warning_callback_; |
| const OnMessageCallback on_error_callback_; |
| MessageVerbosity message_verbosity_; |
| SupportsMapToMeshFlag supports_map_to_mesh_; |
| |
| friend class ParserImpl; |
| friend class ParserTestBase; |
| DISALLOW_COPY_AND_ASSIGN(Parser); |
| }; |
| |
| } // namespace css_parser |
| } // namespace cobalt |
| |
| #endif // COBALT_CSS_PARSER_PARSER_H_ |