| // Copyright 2015 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. |
| |
| #include "cobalt/cssom/font_style_value.h" |
| |
| #include "base/lazy_instance.h" |
| #include "base/threading/thread_checker.h" |
| #include "cobalt/cssom/keyword_names.h" |
| #include "cobalt/cssom/property_value_visitor.h" |
| |
| namespace cobalt { |
| namespace cssom { |
| |
| struct FontStyleValue::NonTrivialStaticFields { |
| NonTrivialStaticFields() |
| : italic(new FontStyleValue(FontStyleValue::kItalic)), |
| normal(new FontStyleValue(FontStyleValue::kNormal)), |
| oblique(new FontStyleValue(FontStyleValue::kOblique)) {} |
| |
| const scoped_refptr<FontStyleValue> italic; |
| const scoped_refptr<FontStyleValue> normal; |
| const scoped_refptr<FontStyleValue> oblique; |
| }; |
| |
| namespace { |
| |
| base::LazyInstance<FontStyleValue::NonTrivialStaticFields>::DestructorAtExit |
| non_trivial_static_fields = LAZY_INSTANCE_INITIALIZER; |
| |
| } // namespace |
| |
| const scoped_refptr<FontStyleValue>& FontStyleValue::GetItalic() { |
| return non_trivial_static_fields.Get().italic; |
| } |
| |
| const scoped_refptr<FontStyleValue>& FontStyleValue::GetNormal() { |
| return non_trivial_static_fields.Get().normal; |
| } |
| |
| const scoped_refptr<FontStyleValue>& FontStyleValue::GetOblique() { |
| return non_trivial_static_fields.Get().oblique; |
| } |
| |
| void FontStyleValue::Accept(PropertyValueVisitor* visitor) { |
| visitor->VisitFontStyle(this); |
| } |
| |
| std::string FontStyleValue::ToString() const { |
| switch (value_) { |
| case kItalic: |
| return kItalicKeywordName; |
| case kNormal: |
| return kNormalKeywordName; |
| case kOblique: |
| return kObliqueKeywordName; |
| default: |
| NOTREACHED(); |
| return ""; |
| } |
| } |
| |
| } // namespace cssom |
| } // namespace cobalt |