com.google.common.css.compiler.ast.CssClassSelectorNode.java Source code

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Here is the source code for com.google.common.css.compiler.ast.CssClassSelectorNode.java

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/*
 * 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 com.google.common.css.compiler.ast.CssSelectorNode.Specificity;

/**
 * A {@link CssRefinerNode} implementation that represents a selector for a
 * class. For example: {@code .classy}
 *
 * @author fbenz@google.com (Florian Benz)
 */
public class CssClassSelectorNode extends CssRefinerNode {
    private final boolean componentScoped;

    public CssClassSelectorNode(String refinerName, boolean componentScoped,
            SourceCodeLocation sourceCodeLocation) {
        super(Refiner.CLASS, refinerName, sourceCodeLocation);
        this.componentScoped = componentScoped;
    }

    public CssClassSelectorNode(String refinerName, SourceCodeLocation sourceCodeLocation) {
        this(refinerName, false, sourceCodeLocation);
    }

    protected CssClassSelectorNode(CssClassSelectorNode node) {
        this(node.refinerName, node.componentScoped, node.getSourceCodeLocation());
        this.setComments(node.getComments());
    }

    /**
     * Returns {@code true} if this class selector was prefixed with a percent-sign, indicating that
     * it should be prefixed with the current @component's class prefix.
     */
    public boolean isComponentScoped() {
        return componentScoped;
    }

    @Override
    public CssClassSelectorNode deepCopy() {
        return new CssClassSelectorNode(this);
    }

    @Override
    public Specificity getSpecificity() {
        // c++ (c = the number of class selectors, attributes selectors,
        // and pseudo-classes in the selector)
        return new Specificity(0, 1, 0);
    }
}