/*

 * 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

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package com.sun.tools.doclets.formats.html;

import java.io.*;

import com.sun.javadoc.*;

import com.sun.tools.doclets.internal.toolkit.*;

import com.sun.tools.doclets.internal.toolkit.util.*;

import com.sun.tools.doclets.formats.html.markup.*;

/**

 * Generate the package index for the left-hand frame in the generated output.

 * A click on the package name in this frame will update the page in the bottom

 * left hand frame with the listing of contents of the clicked package.

 *

 * @author Atul M Dambalkar

 */

public class PackageIndexFrameWriter extends AbstractPackageIndexWriter {

    /**

     * Construct the PackageIndexFrameWriter object.

     *

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

     */

    public PackageIndexFrameWriter(ConfigurationImpl configuration,

                                   String filename) throws IOException {

        super(configuration, filename);

    }

    /**

     * Generate the package index file named "overview-frame.html".

     * @throws DocletAbortException

     */

    public static void generate(ConfigurationImpl configuration) {

        PackageIndexFrameWriter packgen;

        String filename = "overview-frame.html";

        try {

            packgen = new PackageIndexFrameWriter(configuration, filename);

            packgen.buildPackageIndexFile("doclet.Window_Overview", false);

            packgen.close();

        } catch (IOException exc) {

            configuration.standardmessage.error(

                        "doclet.exception_encountered",

                        exc.toString(), filename);

            throw new DocletAbortException();

        }

    }

    /**

     * {@inheritDoc}

     */

    protected void addPackagesList(PackageDoc[] packages, String text,

            String tableSummary, Content body) {

        Content heading = HtmlTree.HEADING(HtmlConstants.PACKAGE_HEADING, true,

                packagesLabel);

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

        HtmlTree ul = new HtmlTree(HtmlTag.UL);

        ul.addAttr(HtmlAttr.TITLE, packagesLabel.toString());

        for(int i = 0; i < packages.length; i++) {

                ul.addContent(getPackage(packages[i]));

            }

        }

        div.addContent(ul);

        body.addContent(div);

    }

    /**

     * Gets each package name as a separate link.

     *

     * @param pd PackageDoc

     * @return content for the package link

     */

    protected Content getPackage(PackageDoc pd) {

        Content packageLinkContent;

        Content packageLabel;

        if (pd.name().length() > 0) {

            packageLabel = getPackageLabel(pd.name());

            packageLinkContent = getHyperLink(pathString(pd,

                    "package-frame.html"), "", packageLabel, "",

                    "packageFrame");

        } else {

            packageLabel = new RawHtml("<unnamed package>");

            packageLinkContent = getHyperLink("package-frame.html",

                    "", packageLabel, "", "packageFrame");

        }

        Content li = HtmlTree.LI(packageLinkContent);

        return li;

    }

    /**

     * {@inheritDoc}

     */

    protected void addNavigationBarHeader(Content body) {

        Content headerContent;

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

            headerContent = new RawHtml(replaceDocRootDir(configuration.packagesheader));

        } else {

            headerContent = new RawHtml(replaceDocRootDir(configuration.header));

        }

        Content heading = HtmlTree.HEADING(HtmlConstants.TITLE_HEADING, true,

                HtmlStyle.bar, headerContent);

        body.addContent(heading);

    }

    /**

     * Do nothing as there is no overview information in this page.

     */

    protected void addOverviewHeader(Content body) {

    }

    /**

     * Adds "All Classes" link for the top of the left-hand frame page to the

     * documentation tree.

     *

     * @param body the Content object to which the all classes link should be added

     */

    protected void addAllClassesLink(Content body) {

        Content linkContent = getHyperLink("allclasses-frame.html", "",

                allclassesLabel, "", "packageFrame");

        Content div = HtmlTree.DIV(HtmlStyle.indexHeader, linkContent);

        body.addContent(div);

    }

    /**

     * {@inheritDoc}

     */

    protected void addNavigationBarFooter(Content body) {

        Content p = HtmlTree.P(getSpace());

        body.addContent(p);

    }

}