/*

 * Copyright (c) 1998, 2016, 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

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 */

package jdk.javadoc.internal.doclets.formats.html;

import java.util.*;

import javax.lang.model.element.PackageElement;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlConstants;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlStyle;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTag;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTree;

import jdk.javadoc.internal.doclets.formats.html.markup.RawHtml;

import jdk.javadoc.internal.doclets.toolkit.Content;

import jdk.javadoc.internal.doclets.toolkit.util.DocPath;

/**

 * Abstract class to generate the overview files in

 * Frame and Non-Frame format. This will be sub-classed by to

 * generate overview-frame.html as well as overview-summary.html.

 *

 *  <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 Atul M Dambalkar

 * @author Bhavesh Patel (Modified)

 */

public abstract class AbstractPackageIndexWriter extends HtmlDocletWriter {

    /**

     * A Set of Packages to be documented.

     */

    protected SortedSet<PackageElement> packages;

    /**

     * Constructor. Also initializes the packages variable.

     *

     * @param configuration  The current configuration

     * @param filename Name of the package index file to be generated.

     */

    public AbstractPackageIndexWriter(ConfigurationImpl configuration,

                                      DocPath filename) {

        super(configuration, filename);

        packages = configuration.packages;

    }

    /**

     * Adds the navigation bar header to the documentation tree.

     *

     * @param body the document tree to which the navigation bar header will be added

     */

    protected abstract void addNavigationBarHeader(Content body);

    /**

     * Adds the navigation bar footer to the documentation tree.

     *

     * @param body the document tree to which the navigation bar footer will be added

     */

    protected abstract void addNavigationBarFooter(Content body);

    /**

     * Adds the overview header to the documentation tree.

     *

     * @param body the document tree to which the overview header will be added

     */

    protected abstract void addOverviewHeader(Content body);

    /**

     * Adds the packages list to the documentation tree.

     *

     * @param packages a collection of packagedoc objects

     * @param text caption for the table

     * @param tableSummary summary for the table

     * @param body the document tree to which the packages list will be added

     */

    protected abstract void addPackagesList(Collection<PackageElement> packages, String text,

            String tableSummary, Content body);

    /**

     * Generate and prints the contents in the package index file. Call appropriate

     * methods from the sub-class in order to generate Frame or Non

     * Frame format.

     *

     * @param title the title of the window.

     * @param includeScript boolean set true if windowtitle script is to be included

     */

        String windowOverview = configuration.getText(title);

        Content body = getBody(includeScript, getWindowTitle(windowOverview));

        addNavigationBarHeader(body);

        addOverviewHeader(body);

        addIndex(body);

        addOverview(body);

        addNavigationBarFooter(body);

        printHtmlDocument(configuration.metakeywords.getOverviewMetaKeywords(title,

                configuration.doctitle), includeScript, body);

    }

    /**

     * Default to no overview, override to add overview.

     *

     * @param body the document tree to which the overview will be added

     */

    /**

     * Adds the frame or non-frame package index to the documentation tree.

     *

     * @param body the document tree to which the index will be added

     */

    protected void addIndex(Content body) {

        addIndexContents(packages, "doclet.Package_Summary",

                configuration.getText("doclet.Member_Table_Summary",

                configuration.getText("doclet.Package_Summary"),

                configuration.getText("doclet.packages")), body);

    }

    /**

     * Adds package index contents. Call appropriate methods from

     * the sub-classes. Adds it to the body HtmlTree

     *

     * @param packages a collection of packages to be documented

     * @param text string which will be used as the heading

     * @param tableSummary summary for the table

     * @param body the document tree to which the index contents will be added

     */

    protected void addIndexContents(Collection<PackageElement> packages, String text,

            String tableSummary, Content body) {

        if (!packages.isEmpty()) {

            HtmlTree htmlTree = (configuration.allowTag(HtmlTag.NAV))

                    ? HtmlTree.NAV()

                    : new HtmlTree(HtmlTag.DIV);

            htmlTree.addStyle(HtmlStyle.indexNav);

            HtmlTree ul = new HtmlTree(HtmlTag.UL);

            addAllClassesLink(ul);

            if (configuration.showModules) {

                addAllModulesLink(ul);

            }

            htmlTree.addContent(ul);

            body.addContent(htmlTree);

            addPackagesList(packages, text, tableSummary, body);

        }

    }

    /**

     * Adds the doctitle to the documentation tree, if it is specified on the command line.

     *

     * @param body the document tree to which the title will be added

     */

    protected void addConfigurationTitle(Content body) {

        if (configuration.doctitle.length() > 0) {

            Content title = new RawHtml(configuration.doctitle);

            Content heading = HtmlTree.HEADING(HtmlConstants.TITLE_HEADING,

                    HtmlStyle.title, title);

            Content div = HtmlTree.DIV(HtmlStyle.header, heading);

            body.addContent(div);

        }

    }

    /**

     * Returns highlighted "Overview", in the navigation bar as this is the

     * overview page.

     *

     * @return a Content object to be added to the documentation tree

     */

    protected Content getNavLinkContents() {

        Content li = HtmlTree.LI(HtmlStyle.navBarCell1Rev, contents.overviewLabel);

        return li;

    }

    /**

     * Do nothing. This will be overridden.

     *

     * @param div the document tree to which the all classes link will be added

     */

    protected void addAllClassesLink(Content div) {

    }

    /**

     * Do nothing. This will be overridden.

     *

     * @param div the document tree to which the all modules link will be added

     */

    protected void addAllModulesLink(Content div) {

    }

}