/*

 * Copyright (c) 2013, 2018, 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.formats.html;

import java.util.Map;

import java.util.Set;

import javax.lang.model.element.ModuleElement;

import javax.lang.model.element.PackageElement;

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

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.formats.html.markup.StringContent;

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

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

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

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

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

/**

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

 * A click on the module name in this frame will update the page in the top

 * left hand frame with the listing of packages of the clicked module.

 *

 *  <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 Bhavesh Patel

 */

public class ModuleIndexFrameWriter extends AbstractModuleIndexWriter {

    /**

     * Construct the ModuleIndexFrameWriter object.

     *

     * @param configuration the configuration object

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

     */

    public ModuleIndexFrameWriter(HtmlConfiguration configuration,

                                   DocPath filename) {

        super(configuration, filename);

    }

    /**

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

     * @throws DocFileIOException

     * @param configuration the configuration object

     */

    public static void generate(HtmlConfiguration configuration) throws DocFileIOException {

        DocPath filename = DocPaths.MODULE_OVERVIEW_FRAME;

        ModuleIndexFrameWriter modulegen = new ModuleIndexFrameWriter(configuration, filename);

        modulegen.buildModuleIndexFile("doclet.Window_Overview", false);

    }

    /**

     * {@inheritDoc}

     */

    protected void addModulesList(Content body) {

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

                contents.modulesLabel);

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

                ? HtmlTree.MAIN(HtmlStyle.indexContainer, heading)

                : HtmlTree.DIV(HtmlStyle.indexContainer, heading);

        HtmlTree ul = new HtmlTree(HtmlTag.UL);

        ul.setTitle(contents.modulesLabel);

        for (ModuleElement mdle: configuration.modules) {

            ul.addContent(getModuleLink(mdle));

        }

        htmlTree.addContent(ul);

        body.addContent(htmlTree);

    }

    /**

     * Returns each module name as a separate link.

     *

     * @param mdle the module being documented

     * @return content for the module link

     */

    protected Content getModuleLink(ModuleElement mdle) {

        Content moduleLinkContent;

        Content mdlLabel = new StringContent(mdle.getQualifiedName());

        moduleLinkContent = getModuleFramesHyperLink(mdle, mdlLabel, "packageListFrame");

        Content li = HtmlTree.LI(moduleLinkContent);

        return li;

    }

    private Content getModuleFramesHyperLink(ModuleElement mdle, Content label, String target) {

        DocLink mdlLink = new DocLink(docPaths.moduleFrame(mdle));

        DocLink mtFrameLink = new DocLink(docPaths.moduleTypeFrame(mdle));

        DocLink cFrameLink = new DocLink(docPaths.moduleSummary(mdle));

        HtmlTree anchor = HtmlTree.A(mdlLink.toString(), label);

        String onclickStr = "updateModuleFrame('" + mtFrameLink + "','" + cFrameLink + "');";

        anchor.addAttr(HtmlAttr.TARGET, target);

        anchor.addAttr(HtmlAttr.ONCLICK, onclickStr);

        return anchor;

    }

    /**

     * {@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 ul the Content object to which the all classes link should be added

     */

    protected void addAllClassesLink(Content ul) {

        Content linkContent = links.createLink(DocPaths.ALLCLASSES_FRAME,

                contents.allClassesLabel, "", "packageFrame");

        Content li = HtmlTree.LI(linkContent);

        ul.addContent(li);

    }

    /**

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

     * documentation tree.

     *

     * @param ul the Content object to which the all packages link should be added

     */

    protected void addAllPackagesLink(Content ul) {

        Content linkContent = links.createLink(DocPaths.OVERVIEW_FRAME,

                contents.allPackagesLabel, "", "packageListFrame");

        Content li = HtmlTree.LI(linkContent);

        ul.addContent(li);

    }

    /**

     * {@inheritDoc}

     */

    protected void addNavigationBarFooter(Content body) {

        Content p = HtmlTree.P(Contents.SPACE);

        body.addContent(p);

    }

    protected void addModulePackagesList(Map<ModuleElement, Set<PackageElement>> modules, String text,

            String tableSummary, Content body, ModuleElement mdle) {

    }

}