/*

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

import java.io.*;

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

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

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

/**

 * Generate the Help File for the generated API documentation. The help file

 * contents are helpful for browsing the generated documentation.

 *

 * @author Atul M Dambalkar

 */

public class HelpWriter extends HtmlDocletWriter {

    /**

     * Constructor to construct HelpWriter object.

     * @param filename File to be generated.

     */

    public HelpWriter(ConfigurationImpl configuration,

                      String filename) throws IOException {

        super(configuration, filename);

    }

    /**

     * Construct the HelpWriter object and then use it to generate the help

     * file. The name of the generated file is "help-doc.html". The help file

     * will get generated if and only if "-helpfile" and "-nohelp" is not used

     * on the command line.

     * @throws DocletAbortException

     */

    public static void generate(ConfigurationImpl configuration) {

        HelpWriter helpgen;

        String filename = "";

        try {

            filename = "help-doc.html";

            helpgen = new HelpWriter(configuration, filename);

            helpgen.generateHelpFile();

            helpgen.close();

        } catch (IOException exc) {

            configuration.standardmessage.error(

                        "doclet.exception_encountered",

                        exc.toString(), filename);

            throw new DocletAbortException();

        }

    }

    /**

     * Generate the help file contents.

     */

    protected void generateHelpFile() {

        String title = configuration.getText("doclet.Window_Help_title");

        Content body = getBody(true, getWindowTitle(title));

        addTop(body);

        addNavLinks(true, body);

        addHelpFileContents(body);

        addNavLinks(false, body);

        addBottom(body);

        printHtmlDocument(null, true, body);

    }

    /**

     * Add the help file contents from the resource file to the content tree. While adding the

     * help file contents it also keeps track of user options. If "-notree"

     * is used, then the "overview-tree.html" will not get added and hence

     * help information also will not get added.

     *

     * @param contentTree the content tree to which the help file contents will be added

     */

    protected void addHelpFileContents(Content contentTree) {

        Content heading = HtmlTree.HEADING(HtmlConstants.TITLE_HEADING, false, HtmlStyle.title,

                getResource("doclet.Help_line_1"));

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

        Content line2 = HtmlTree.P(HtmlStyle.subTitle,

                getResource("doclet.Help_line_2"));

        div.addContent(line2);

        contentTree.addContent(div);

        HtmlTree ul = new HtmlTree(HtmlTag.UL);

        ul.addStyle(HtmlStyle.blockList);

        if (configuration.createoverview) {

            Content overviewHeading = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.Overview"));

            Content liOverview = HtmlTree.LI(HtmlStyle.blockList, overviewHeading);

            Content line3 = getResource("doclet.Help_line_3",

                    getHyperLinkString("overview-summary.html",

                    configuration.getText("doclet.Overview")));

            Content overviewPara = HtmlTree.P(line3);

            liOverview.addContent(overviewPara);

            ul.addContent(liOverview);

        }

        Content packageHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.Package"));

        Content liPackage = HtmlTree.LI(HtmlStyle.blockList, packageHead);

        Content line4 = getResource("doclet.Help_line_4");

        Content packagePara = HtmlTree.P(line4);

        liPackage.addContent(packagePara);

        HtmlTree ulPackage = new HtmlTree(HtmlTag.UL);

        ulPackage.addContent(HtmlTree.LI(

                getResource("doclet.Interfaces_Italic")));

        ulPackage.addContent(HtmlTree.LI(

                getResource("doclet.Classes")));

        ulPackage.addContent(HtmlTree.LI(

                getResource("doclet.Enums")));

        ulPackage.addContent(HtmlTree.LI(

                getResource("doclet.Exceptions")));

        ulPackage.addContent(HtmlTree.LI(

                getResource("doclet.Errors")));

        ulPackage.addContent(HtmlTree.LI(

                getResource("doclet.AnnotationTypes")));

        liPackage.addContent(ulPackage);

        ul.addContent(liPackage);

        Content classHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.Help_line_5"));

        Content liClass = HtmlTree.LI(HtmlStyle.blockList, classHead);

        Content line6 = getResource("doclet.Help_line_6");

        Content classPara = HtmlTree.P(line6);

        liClass.addContent(classPara);

        HtmlTree ul1 = new HtmlTree(HtmlTag.UL);

        ul1.addContent(HtmlTree.LI(

                getResource("doclet.Help_line_7")));

        ul1.addContent(HtmlTree.LI(

                getResource("doclet.Help_line_8")));

        ul1.addContent(HtmlTree.LI(

                getResource("doclet.Help_line_9")));

        ul1.addContent(HtmlTree.LI(

                getResource("doclet.Help_line_10")));

        ul1.addContent(HtmlTree.LI(

                getResource("doclet.Help_line_11")));

        ul1.addContent(HtmlTree.LI(

                getResource("doclet.Help_line_12")));

        liClass.addContent(ul1);

        HtmlTree ul2 = new HtmlTree(HtmlTag.UL);

        ul2.addContent(HtmlTree.LI(

                getResource("doclet.Nested_Class_Summary")));

        ul2.addContent(HtmlTree.LI(

                getResource("doclet.Field_Summary")));

        ul2.addContent(HtmlTree.LI(

                getResource("doclet.Constructor_Summary")));

        ul2.addContent(HtmlTree.LI(

                getResource("doclet.Method_Summary")));

        liClass.addContent(ul2);

        HtmlTree ul3 = new HtmlTree(HtmlTag.UL);

        ul3.addContent(HtmlTree.LI(

                getResource("doclet.Field_Detail")));

        ul3.addContent(HtmlTree.LI(

                getResource("doclet.Constructor_Detail")));

        ul3.addContent(HtmlTree.LI(

                getResource("doclet.Method_Detail")));

        liClass.addContent(ul3);

        Content line13 = getResource("doclet.Help_line_13");

        Content para = HtmlTree.P(line13);

        liClass.addContent(para);

        ul.addContent(liClass);

        //Annotation Types

        Content aHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.AnnotationType"));

        Content liAnnotation = HtmlTree.LI(HtmlStyle.blockList, aHead);

        Content aline1 = getResource("doclet.Help_annotation_type_line_1");

        Content aPara = HtmlTree.P(aline1);

        liAnnotation.addContent(aPara);

        HtmlTree aul = new HtmlTree(HtmlTag.UL);

        aul.addContent(HtmlTree.LI(

                getResource("doclet.Help_annotation_type_line_2")));

        aul.addContent(HtmlTree.LI(

                getResource("doclet.Help_annotation_type_line_3")));

        aul.addContent(HtmlTree.LI(

                getResource("doclet.Annotation_Type_Required_Member_Summary")));

        aul.addContent(HtmlTree.LI(

                getResource("doclet.Annotation_Type_Optional_Member_Summary")));

        aul.addContent(HtmlTree.LI(

                getResource("doclet.Annotation_Type_Member_Detail")));

        liAnnotation.addContent(aul);

        ul.addContent(liAnnotation);

        //Enums

        Content enumHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.Enum"));

        Content liEnum = HtmlTree.LI(HtmlStyle.blockList, enumHead);

        Content eline1 = getResource("doclet.Help_enum_line_1");

        Content enumPara = HtmlTree.P(eline1);

        liEnum.addContent(enumPara);

        HtmlTree eul = new HtmlTree(HtmlTag.UL);

        eul.addContent(HtmlTree.LI(

                getResource("doclet.Help_enum_line_2")));

        eul.addContent(HtmlTree.LI(

                getResource("doclet.Help_enum_line_3")));

        eul.addContent(HtmlTree.LI(

                getResource("doclet.Enum_Constant_Summary")));

        eul.addContent(HtmlTree.LI(

                getResource("doclet.Enum_Constant_Detail")));

        liEnum.addContent(eul);

        ul.addContent(liEnum);

        if (configuration.classuse) {

            Content useHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                    getResource("doclet.Help_line_14"));

            Content liUse = HtmlTree.LI(HtmlStyle.blockList, useHead);

            Content line15 = getResource("doclet.Help_line_15");

            Content usePara = HtmlTree.P(line15);

            liUse.addContent(usePara);

            ul.addContent(liUse);

        }

        if (configuration.createtree) {

            Content treeHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                    getResource("doclet.Help_line_16"));

            Content liTree = HtmlTree.LI(HtmlStyle.blockList, treeHead);

            Content line17 = getResource("doclet.Help_line_17_with_tree_link",

                    getHyperLinkString("overview-tree.html",

                    configuration.getText("doclet.Class_Hierarchy")));

            Content treePara = HtmlTree.P(line17);

            liTree.addContent(treePara);

            HtmlTree tul = new HtmlTree(HtmlTag.UL);

            tul.addContent(HtmlTree.LI(

                    getResource("doclet.Help_line_18")));

            tul.addContent(HtmlTree.LI(

                    getResource("doclet.Help_line_19")));

            liTree.addContent(tul);

            ul.addContent(liTree);

        }

        if (!(configuration.nodeprecatedlist ||

                  configuration.nodeprecated)) {

            Content dHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                    getResource("doclet.Deprecated_API"));

            Content liDeprecated = HtmlTree.LI(HtmlStyle.blockList, dHead);

            Content line20 = getResource("doclet.Help_line_20_with_deprecated_api_link",

                    getHyperLinkString("deprecated-list.html",

                    configuration.getText("doclet.Deprecated_API")));

            Content dPara = HtmlTree.P(line20);

            liDeprecated.addContent(dPara);

            ul.addContent(liDeprecated);

        }

        if (configuration.createindex) {

            String indexlink;

            if (configuration.splitindex) {

                indexlink = getHyperLinkString("index-files/index-1.html",

                        configuration.getText("doclet.Index"));

            } else {

                indexlink = getHyperLinkString("index-all.html",

                        configuration.getText("doclet.Index"));

            }

            Content indexHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                    getResource("doclet.Help_line_21"));

            Content liIndex = HtmlTree.LI(HtmlStyle.blockList, indexHead);

            Content line22 = getResource("doclet.Help_line_22", indexlink);

            Content indexPara = HtmlTree.P(line22);

            liIndex.addContent(indexPara);

            ul.addContent(liIndex);

        }

        Content prevHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.Help_line_23"));

        Content liPrev = HtmlTree.LI(HtmlStyle.blockList, prevHead);

        Content line24 = getResource("doclet.Help_line_24");

        Content prevPara = HtmlTree.P(line24);

        liPrev.addContent(prevPara);

        ul.addContent(liPrev);

        Content frameHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.Help_line_25"));

        Content liFrame = HtmlTree.LI(HtmlStyle.blockList, frameHead);

        Content line26 = getResource("doclet.Help_line_26");

        Content framePara = HtmlTree.P(line26);

        liFrame.addContent(framePara);

        ul.addContent(liFrame);

        Content allclassesHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.All_Classes"));

        Content liAllClasses = HtmlTree.LI(HtmlStyle.blockList, allclassesHead);

        Content line27 = getResource("doclet.Help_line_27",

                getHyperLinkString("allclasses-noframe.html",

                configuration.getText("doclet.All_Classes")));

        Content allclassesPara = HtmlTree.P(line27);

        liAllClasses.addContent(allclassesPara);

        ul.addContent(liAllClasses);

        Content sHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.Serialized_Form"));

        Content liSerial = HtmlTree.LI(HtmlStyle.blockList, sHead);

        Content line28 = getResource("doclet.Help_line_28");

        Content serialPara = HtmlTree.P(line28);

        liSerial.addContent(serialPara);

        ul.addContent(liSerial);

        Content constHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,

                getResource("doclet.Constants_Summary"));

        Content liConst = HtmlTree.LI(HtmlStyle.blockList, constHead);

        Content line29 = getResource("doclet.Help_line_29");

        Content constPara = HtmlTree.P(line29);

        liConst.addContent(constPara);

        ul.addContent(liConst);

        Content divContent = HtmlTree.DIV(HtmlStyle.contentContainer, ul);

        Content line30 = HtmlTree.EM(getResource("doclet.Help_line_30"));

        divContent.addContent(line30);

        contentTree.addContent(divContent);

    }

    /**

     * Get the help label.

     *

     * @return a content tree for the help label

     */

    protected Content getNavLinkHelp() {

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

        return li;

    }

}