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// Copyright 2015 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.
#include "cobalt/cssom/media_query.h"
#include "base/memory/ref_counted.h"
#include "cobalt/cssom/media_feature.h"
namespace cobalt {
namespace cssom {
// If the media query list is empty (i.e. the declaration is the empty string or
// consists solely of whitespace) it evaluates to true.
// https://www.w3.org/TR/css3-mediaqueries/#error-handling
MediaQuery::MediaQuery() : evaluated_media_type_(true) {}
MediaQuery::MediaQuery(bool evaluated_media_type)
: evaluated_media_type_(evaluated_media_type) {}
MediaQuery::MediaQuery(bool evaluated_media_type,
scoped_ptr<MediaFeatures> media_features)
: evaluated_media_type_(evaluated_media_type),
media_features_(media_features.release()) {}
std::string MediaQuery::media_query() {
// TODO: Implement serialization of MediaQuery.
NOTIMPLEMENTED() << "Serialization of MediaQuery not implemented yet.";
return "";
}
bool MediaQuery::EvaluateConditionValue(const math::Size& viewport_size) {
if (!evaluated_media_type_) {
return false;
}
if (media_features_) {
for (MediaFeatures::iterator it = media_features_->begin();
it != media_features_->end(); ++it) {
if (!(*it)->EvaluateConditionValue(viewport_size)) {
return false;
}
}
}
return true;
}
} // namespace cssom
} // namespace cobalt