src/cobalt/accessibility/text_alternative.cc

/*
 * Copyright 2017 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/accessibility/text_alternative.h"

#include "cobalt/accessibility/internal/text_alternative_helper.h"
#include "cobalt/dom/document.h"

namespace cobalt {
namespace accessibility {
std::string ComputeTextAlternative(const scoped_refptr<dom::Element>& element) {
  // Update the computed styles first to ensure that any CSS that would modify
  // the text contents has been applied (such as :before and :after).
  DCHECK(element->node_document());
  element->node_document()->UpdateComputedStyles();

  internal::TextAlternativeHelper helper;
  helper.AppendTextAlternative(element);
  return helper.GetTextAlternative();
}
}  // namespace accessibility
}  // namespace cobalt