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// 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