| // Copyright 2014 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_CSSOM_STYLE_SHEET_LIST_H_ |
| #define COBALT_CSSOM_STYLE_SHEET_LIST_H_ |
| |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "base/memory/ref_counted.h" |
| #include "cobalt/cssom/mutation_observer.h" |
| #include "cobalt/script/wrappable.h" |
| |
| namespace cobalt { |
| namespace cssom { |
| |
| class StyleSheet; |
| |
| // The StyleSheetList interface represents an ordered collection of CSS |
| // style sheets. |
| // https://www.w3.org/TR/2013/WD-cssom-20131205/#the-stylesheetlist-interface |
| class StyleSheetList : public script::Wrappable, public MutationObserver { |
| public: |
| // If no layout mutation reporting needed, |observer| can be null. |
| explicit StyleSheetList(MutationObserver* observer); |
| |
| // Web API: StyleSheetList |
| // |
| |
| // Returns the index-th CSS style sheet in the collection. |
| // Returns null if there is no index-th object in the collection. |
| scoped_refptr<StyleSheet> Item(unsigned int index) const; |
| |
| // Returns the number of CSS style sheets represented by the collection. |
| unsigned int length() const; |
| |
| // Custom, not in any spec. |
| // |
| // From MutationObserver. |
| void OnCSSMutation() OVERRIDE; |
| |
| void Append(const scoped_refptr<StyleSheet>& style_sheet); |
| |
| MutationObserver* mutation_observer() const { return mutation_observer_; } |
| |
| DEFINE_WRAPPABLE_TYPE(StyleSheetList); |
| |
| private: |
| ~StyleSheetList(); |
| |
| std::vector<scoped_refptr<StyleSheet> > style_sheets_; |
| MutationObserver* const mutation_observer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(StyleSheetList); |
| }; |
| |
| } // namespace cssom |
| } // namespace cobalt |
| |
| #endif // COBALT_CSSOM_STYLE_SHEET_LIST_H_ |