| /* |
| * Copyright 2016 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_CSS_COMPUTED_STYLE_DECLARATION_H_ |
| #define COBALT_CSSOM_CSS_COMPUTED_STYLE_DECLARATION_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/optional.h" |
| #include "cobalt/cssom/css_computed_style_data.h" |
| #include "cobalt/cssom/css_style_declaration.h" |
| #include "cobalt/script/exception_state.h" |
| #include "cobalt/web_animations/animation_set.h" |
| |
| namespace cobalt { |
| namespace cssom { |
| |
| // A CSS declaration block is an ordered collection of CSS properties with their |
| // associated values, also named CSS declarations. In the DOM a CSS declaration |
| // block is a CSSStyleDeclaration object. |
| // https://www.w3.org/TR/2013/WD-cssom-20131205/#css-declaration-blocks |
| // The CSSComputedStyleDeclaration implements a CSS Declaration block |
| // for computed styles. |
| class CSSComputedStyleDeclaration : public CSSStyleDeclaration { |
| public: |
| CSSComputedStyleDeclaration() {} |
| // From CSSStyleDeclaration. |
| |
| std::string css_text(script::ExceptionState* exception_state) const OVERRIDE; |
| void set_css_text(const std::string& css_text, |
| script::ExceptionState* exception_state) OVERRIDE; |
| |
| unsigned int length() const OVERRIDE; |
| |
| base::optional<std::string> Item(unsigned int index) const OVERRIDE; |
| |
| void SetPropertyValue(const std::string& property_name, |
| const std::string& property_value, |
| script::ExceptionState* exception_state) OVERRIDE; |
| |
| // Custom. |
| |
| const scoped_refptr<const CSSComputedStyleData>& data() const { |
| return data_; |
| } |
| void SetData(const scoped_refptr<const CSSComputedStyleData>& data); |
| |
| // Updates the pointer to the nearest CSSComputedStyleData ancestor, |
| // inclusive, which has inherited properties declared. |
| void UpdateInheritedData(); |
| |
| // Returns whether or not this object or any ancestors have inherited |
| // properties declared. |
| bool HasInheritedProperties() const { |
| return data_with_inherited_properties_ != NULL; |
| } |
| |
| // Returns the reference to the property value for an inherited property. |
| // Should only be called if HasInheritedProperties() returns true. |
| const scoped_refptr<PropertyValue>& GetInheritedPropertyValueReference( |
| PropertyKey key) const; |
| |
| const scoped_refptr<const web_animations::AnimationSet>& animations() const { |
| return animations_; |
| } |
| void set_animations( |
| const scoped_refptr<const web_animations::AnimationSet>& animations) { |
| animations_ = animations; |
| } |
| |
| private: |
| // From CSSStyleDeclaration. |
| std::string GetDeclaredPropertyValueStringByKey( |
| const PropertyKey key) const OVERRIDE; |
| |
| // The CSSComputedStyleData owned by this object. |
| scoped_refptr<const CSSComputedStyleData> data_; |
| |
| // The nearest CSSComputedStyleData ancestor, inclusive, which has inherited |
| // properties declared. |
| scoped_refptr<const CSSComputedStyleData> data_with_inherited_properties_; |
| |
| // All animation that applies to the above computed style. |
| scoped_refptr<const web_animations::AnimationSet> animations_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CSSComputedStyleDeclaration); |
| }; |
| |
| } // namespace cssom |
| } // namespace cobalt |
| |
| #endif // COBALT_CSSOM_CSS_COMPUTED_STYLE_DECLARATION_H_ |