/*
* Copyright 2008 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.base.Preconditions;
import java.util.List;
import javax.annotation.Nullable;
/**
* A node representing a CSS declaration in the abstract syntax tree.
* For example: <code>background: red</code>
*
* @author oana@google.com (Oana Florescu)
*/
public class CssDeclarationNode extends CssNode {
/** The node representing the property. */
private CssPropertyNode propertyName;
/** The value given to the property. */
private CssPropertyValueNode propertyValue;
/**
* This will be set to true if this declaration node has a "star-hack"
* (has a star before the property name).
*/
private boolean hasStarHack;
/**
* Constructor of a node representing a CSS declaration.
*
* @param propertyName
*/
public CssDeclarationNode(CssPropertyNode propertyName) {
this(propertyName, new CssPropertyValueNode());
}
/**
* Constructor of a node representing a CSS declaration.
*
* @param propertyName
* @param comments
*/
public CssDeclarationNode(CssPropertyNode propertyName,
List<CssCommentNode> comments) {
this(propertyName, new CssPropertyValueNode(), comments);
}
/**
* Constructor of a node representing a CSS declaration.
*
* @param propertyName
* @param propertyValue
*/
public CssDeclarationNode(CssPropertyNode propertyName,
CssPropertyValueNode propertyValue) {
this(propertyName, propertyValue, null);
}
/**
* Constructor of a node representing a CSS declaration.
*
* @param propertyName
* @param propertyValue
* @param comments
*/
public CssDeclarationNode(CssPropertyNode propertyName,
CssPropertyValueNode propertyValue,
@Nullable List<CssCommentNode> comments) {
this(propertyName, propertyValue, comments, false);
}
/**
* Constructor of a node representing a CSS declaration.
*
* @param propertyName
* @param propertyValue
* @param comments
* @param hasStarHack
*/
public CssDeclarationNode(CssPropertyNode propertyName,
CssPropertyValueNode propertyValue,
@Nullable List<CssCommentNode> comments,
boolean hasStarHack) {
super(null, comments, null);
this.propertyName = propertyName;
this.propertyValue = propertyValue;
becomeParentForNode(this.propertyName);
becomeParentForNode(this.propertyValue);
this.setStarHack(hasStarHack);
}
/**
* Copy constructor.
*
* @param node
*/
public CssDeclarationNode(CssDeclarationNode node) {
this(
node.getPropertyName().deepCopy(),
node.getPropertyValue().deepCopy(),
node.getComments(),
node.hasStarHack());
}
@Override
public CssDeclarationNode deepCopy() {
return new CssDeclarationNode(this);
}
public CssPropertyNode getPropertyName() {
return propertyName;
}
public void setPropertyName(CssPropertyNode propertyName) {
Preconditions.checkNotNull(propertyName);
removeAsParentOfNode(this.propertyName);
this.propertyName = propertyName;
becomeParentForNode(this.propertyName);
}
public CssPropertyValueNode getPropertyValue() {
return propertyValue;
}
public void setPropertyValue(CssPropertyValueNode propertyValue) {
Preconditions.checkNotNull(propertyValue);
removeAsParentOfNode(this.propertyValue);
this.propertyValue = propertyValue;
becomeParentForNode(this.propertyValue);
}
/**
* Sets the hasStarHack attribute to the given value.
*
* @param hasStarHack
*/
public void setStarHack(boolean hasStarHack) {
this.hasStarHack = hasStarHack;
}
/**
* Returns the value of this node's {@code hasStarHack} attribute.
*
* @return {@code true} if this node's {@code hasStarHack} is set to true.
*/
public boolean hasStarHack() {
return hasStarHack;
}
/**
* For debugging only.
*/
@Override
public String toString() {
String output = "";
if (!getComments().isEmpty()) {
output = getComments().toString();
}
if (hasStarHack()) {
output = "*";
}
output += getPropertyName().getValue() + ":" + getPropertyValue();
return output;
}
}