ElementStyleView.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

package org.waveprotocol.wave.model.document.util;

/**
 * Exposes the interface for retrieving style properties of an element.
 *
 *
 * @param <N> The type of Node
 * @param <E> The type of Element
 * @param <T> The type of TextNode
 */
public interface ElementStyleView<N, E extends N, T extends N>
    extends ReadableDocumentView<N, E, T> {
  /**
   * Gets the value of a style property on an element. Returns null if the
   * property was not set.
   *
   * @param element The element whose style attribute to get.
   * @param name The name of the style property to get the value for.
   * @return The value of the style property or null if it does not exist.
   */
  String getStylePropertyValue(E element, String name);
}