/*
* Copyright 2011 Google Inc.
*
* 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.
*/
package com.google.common.css.compiler.ast;
import com.google.common.css.SourceCodeLocation;
import javax.annotation.Nullable;
/**
* A node representing a key (for keyframes) in the AST.
* A key is used to represent a position in an animation and can be a expressed
* with percentage ranging from 0% to 100%, or by <code>from</code> (= 0%), or
* <code>to</code> (= 100%).
* For example: <code>0%, 33.3% { ... }</code>
*
* @author fbenz@google.com (Florian Benz)
*/
public class CssKeyNode extends CssNode implements ChunkAware {
/** Value of the key held by this node. */
private String keyValue;
/** The chunk this key belongs to. */
private Object chunk;
/**
* Constructor of a key node.
*
* @param keyValue
* @param sourceCodeLocation
*/
public CssKeyNode(@Nullable String keyValue,
@Nullable SourceCodeLocation sourceCodeLocation) {
super(sourceCodeLocation);
this.keyValue = keyValue;
}
/**
* Constructor of a key node.
*
* @param keyValue
*/
public CssKeyNode(String keyValue) {
this(keyValue, null);
}
/**
* Copy-constructor of a key node.
*
* @param node
*/
public CssKeyNode(CssKeyNode node) {
this(node.getKeyValue(), node.getSourceCodeLocation());
this.chunk = node.getChunk();
}
@Override
public CssKeyNode deepCopy() {
return new CssKeyNode(this);
}
public void setKeyValue(String keyValue) {
this.keyValue = keyValue;
}
public String getKeyValue() {
return keyValue;
}
@Override
public void setChunk(Object chunk) {
this.chunk = chunk;
}
@Override
public Object getChunk() {
return chunk;
}
/**
* For debugging only.
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
if (keyValue != null) {
sb.append(keyValue);
}
return sb.toString();
}
}