/*
 * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package jdk.javadoc.internal.doclets.toolkit.taglets;

import java.util.List;
import java.util.Locale;

import javax.lang.model.element.Element;

import com.sun.source.doctree.DocTree;

import jdk.javadoc.internal.doclets.toolkit.Content;
import jdk.javadoc.internal.doclets.toolkit.util.CommentHelper;
import jdk.javadoc.internal.doclets.toolkit.util.DocFinder;
import jdk.javadoc.internal.doclets.toolkit.util.Utils;

A simple single argument custom tag.
 
This is NOT part of any supported API.
 If you write code that depends on this, you do so at your own risk.
 This code and its internal interfaces are subject to change or
 deletion without notice.
Author:
Jamie Ho/**
 * A simple single argument custom tag.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 *
 * @author Jamie Ho
 */

public class SimpleTaglet extends BaseTaglet implements InheritableTaglet {

    
The marker in the location string for excluded tags.
/**
     * The marker in the location string for excluded tags.
     */
    public static final String EXCLUDED = "x";

    
The marker in the location string for modules.
/**
     * The marker in the location string for modules.
     */
    public static final String MODULE = "s";

    
The marker in the location string for packages.
/**
     * The marker in the location string for packages.
     */
    public static final String PACKAGE = "p";

    
The marker in the location string for types.
/**
     * The marker in the location string for types.
     */
    public static final String TYPE = "t";

    
The marker in the location string for constructors.
/**
     * The marker in the location string for constructors.
     */
    public static final String CONSTRUCTOR = "c";

    
The marker in the location string for fields.
/**
     * The marker in the location string for fields.
     */
    public static final String FIELD = "f";

    
The marker in the location string for methods.
/**
     * The marker in the location string for methods.
     */
    public static final String METHOD = "m";

    
The marker in the location string for overview.
/**
     * The marker in the location string for overview.
     */
    public static final String OVERVIEW = "o";

    
Use in location string when the tag is to
appear in all locations.
/**
     * Use in location string when the tag is to
     * appear in all locations.
     */
    public static final String ALL = "a";

    
The name of this tag.
/**
     * The name of this tag.
     */
    protected String tagName;

    
The header to output.
/**
     * The header to output.
     */
    protected String header;

    
The possible locations that this tag can appear in.
/**
     * The possible locations that this tag can appear in.
     */
    protected String locations;

    
Construct a SimpleTaglet.
Params:
tagName – the name of this tag
header – the header to output.
locations – the possible locations that this tag
can appear in.  The String can contain 'p'
for package, 't' for type, 'm' for method, 'c' for constructor
and 'f' for field./**
     * Construct a <code>SimpleTaglet</code>.
     * @param tagName the name of this tag
     * @param header the header to output.
     * @param locations the possible locations that this tag
     * can appear in.  The <code>String</code> can contain 'p'
     * for package, 't' for type, 'm' for method, 'c' for constructor
     * and 'f' for field.
     */
    public SimpleTaglet(String tagName, String header, String locations) {
        this.tagName = tagName;
        this.header = header;
        locations = Utils.toLowerCase(locations);
        if (locations.contains(ALL) && !locations.contains(EXCLUDED)) {
            this.locations = MODULE + PACKAGE + TYPE + FIELD + METHOD + CONSTRUCTOR + OVERVIEW;
        } else {
            this.locations = locations;
        }
    }

    
Return the name of this Taglet.
/**
     * Return the name of this <code>Taglet</code>.
     */
    public String getName() {
        return tagName;
    }

    
Return true if this SimpleTaglet
is used in constructor documentation.
Returns:
true if this SimpleTaglet
is used in constructor documentation and false
otherwise./**
     * Return true if this <code>SimpleTaglet</code>
     * is used in constructor documentation.
     * @return true if this <code>SimpleTaglet</code>
     * is used in constructor documentation and false
     * otherwise.
     */
    public boolean inConstructor() {
        return locations.contains(CONSTRUCTOR) && !locations.contains(EXCLUDED);
    }

    
Return true if this SimpleTaglet
is used in field documentation.
Returns:
true if this SimpleTaglet
is used in field documentation and false
otherwise./**
     * Return true if this <code>SimpleTaglet</code>
     * is used in field documentation.
     * @return true if this <code>SimpleTaglet</code>
     * is used in field documentation and false
     * otherwise.
     */
    public boolean inField() {
        return locations.contains(FIELD) && !locations.contains(EXCLUDED);
    }

    
Return true if this SimpleTaglet
is used in method documentation.
Returns:
true if this SimpleTaglet
is used in method documentation and false
otherwise./**
     * Return true if this <code>SimpleTaglet</code>
     * is used in method documentation.
     * @return true if this <code>SimpleTaglet</code>
     * is used in method documentation and false
     * otherwise.
     */
    public boolean inMethod() {
        return locations.contains(METHOD) && !locations.contains(EXCLUDED);
    }

    
Return true if this SimpleTaglet
is used in overview documentation.
Returns:
true if this SimpleTaglet
is used in overview documentation and false
otherwise./**
     * Return true if this <code>SimpleTaglet</code>
     * is used in overview documentation.
     * @return true if this <code>SimpleTaglet</code>
     * is used in overview documentation and false
     * otherwise.
     */
    public boolean inOverview() {
        return locations.contains(OVERVIEW) && !locations.contains(EXCLUDED);
    }

    
Return true if this SimpleTaglet
is used in module documentation.
Returns:
true if this SimpleTaglet
is used in module documentation and false
otherwise./**
     * Return true if this <code>SimpleTaglet</code>
     * is used in module documentation.
     * @return true if this <code>SimpleTaglet</code>
     * is used in module documentation and false
     * otherwise.
     */
    public boolean inModule() {
        return locations.contains(MODULE) && !locations.contains(EXCLUDED);
    }

    
Return true if this SimpleTaglet
is used in package documentation.
Returns:
true if this SimpleTaglet
is used in package documentation and false
otherwise./**
     * Return true if this <code>SimpleTaglet</code>
     * is used in package documentation.
     * @return true if this <code>SimpleTaglet</code>
     * is used in package documentation and false
     * otherwise.
     */
    public boolean inPackage() {
        return locations.contains(PACKAGE) && !locations.contains(EXCLUDED);
    }

    
Return true if this SimpleTaglet
is used in type documentation (classes or interfaces).
Returns:
true if this SimpleTaglet
is used in type documentation and false
otherwise./**
     * Return true if this <code>SimpleTaglet</code>
     * is used in type documentation (classes or interfaces).
     * @return true if this <code>SimpleTaglet</code>
     * is used in type documentation and false
     * otherwise.
     */
    public boolean inType() {
        return locations.contains(TYPE) && !locations.contains(EXCLUDED);
    }

    
Return true if this Taglet
is an inline tag.
Returns:
true if this Taglet
is an inline tag and false otherwise./**
     * Return true if this <code>Taglet</code>
     * is an inline tag.
     * @return true if this <code>Taglet</code>
     * is an inline tag and false otherwise.
     */
    public boolean isInlineTag() {
        return false;
    }

    @Override
    public void inherit(DocFinder.Input input, DocFinder.Output output) {
        List<? extends DocTree> tags = input.utils.getBlockTags(input.element, tagName);
        if (!tags.isEmpty()) {
            output.holder = input.element;
            output.holderTag = tags.get(0);
            CommentHelper ch = input.utils.getCommentHelper(output.holder);
            output.inlineTags = input.isFirstSentence
                    ? ch.getFirstSentenceTrees(input.utils.configuration, output.holderTag)
                    : ch.getTags(input.utils.configuration, output.holderTag);
        }
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public Content getTagletOutput(Element element, DocTree tag, TagletWriter writer) {
        return header == null || tag == null ? null : writer.simpleTagOutput(element, tag, header);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public Content getTagletOutput(Element holder, TagletWriter writer) {
        Utils utils = writer.configuration().utils;
        List<? extends DocTree> tags = utils.getBlockTags(holder, getName());
        if (header == null || tags.isEmpty()) {
            return null;
        }
        return writer.simpleTagOutput(holder, tags, header);
    }
}