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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * accompanied this code).
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package jdk.javadoc.internal.doclets.formats.html;

import jdk.javadoc.internal.doclets.formats.html.markup.Head;
import jdk.javadoc.internal.doclets.formats.html.markup.DocType;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlAttr;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlDocument;
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.Script;
import jdk.javadoc.internal.doclets.toolkit.Content;
import jdk.javadoc.internal.doclets.toolkit.util.DocFile;
import jdk.javadoc.internal.doclets.toolkit.util.DocFileIOException;
import jdk.javadoc.internal.doclets.toolkit.util.DocPath;
import jdk.javadoc.internal.doclets.toolkit.util.DocPaths;


Generate the documentation in the Html "frame" format in the browser. The
generated documentation will have two or three frames depending upon the
number of packages on the command line. In general there will be three frames
in the output, a left-hand top frame will have a list of all packages with
links to target left-hand bottom frame. The left-hand bottom frame will have
the particular package contents or the all-classes list, where as the single
right-hand frame will have overview or package summary or class file. Also
take care of browsers which do not support Html frames.
 
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:
Atul M Dambalkar/**
 * Generate the documentation in the Html "frame" format in the browser. The
 * generated documentation will have two or three frames depending upon the
 * number of packages on the command line. In general there will be three frames
 * in the output, a left-hand top frame will have a list of all packages with
 * links to target left-hand bottom frame. The left-hand bottom frame will have
 * the particular package contents or the all-classes list, where as the single
 * right-hand frame will have overview or package summary or class file. Also
 * take care of browsers which do not support Html frames.
 *
 *  <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
 */
public class FrameOutputWriter extends HtmlDocletWriter {

    
Number of packages specified on the command line.
/**
     * Number of packages specified on the command line.
     */
    int noOfPackages;

    
Constructor to construct FrameOutputWriter object.
Params:
configuration – for this run
filename – File to be generated./**
     * Constructor to construct FrameOutputWriter object.
     *
     * @param configuration for this run
     * @param filename File to be generated.
     */
    public FrameOutputWriter(HtmlConfiguration configuration, DocPath filename) {
        super(configuration, filename);
        noOfPackages = configuration.packages.size();
    }

    
Construct FrameOutputWriter object and then use it to generate the Html
file which will have the description of all the frames in the
documentation. The name of the generated file is "index.html" which is
the default first file for Html documents.
Params:
configuration – the configuration for this doclet
Throws:
DocFileIOException – if there is a problem generating the frame file/**
     * Construct FrameOutputWriter object and then use it to generate the Html
     * file which will have the description of all the frames in the
     * documentation. The name of the generated file is "index.html" which is
     * the default first file for Html documents.
     * @param configuration the configuration for this doclet
     * @throws DocFileIOException if there is a problem generating the frame file
     */
    public static void generate(HtmlConfiguration configuration) throws DocFileIOException {
        FrameOutputWriter framegen = new FrameOutputWriter(configuration, DocPaths.INDEX);
        framegen.generateFrameFile();
    }

    
Generate the constants in the "index.html" file. Print the frame details
as well as warning if browser is not supporting the Html frames.
Throws:
DocFileIOException – if there is a problem generating the frame file/**
     * Generate the constants in the "index.html" file. Print the frame details
     * as well as warning if browser is not supporting the Html frames.
     * @throws DocFileIOException if there is a problem generating the frame file
     */
    protected void generateFrameFile() throws DocFileIOException {
        Content frame = getFrameDetails();
        HtmlTree body = new HtmlTree(HtmlTag.BODY);
        body.addAttr(HtmlAttr.ONLOAD, "loadFrames()");
        String topFilePath = configuration.topFile.getPath();
        Script script = new Script(
                "\nif (targetPage == \"\" || targetPage == \"undefined\")\n" +
                "     window.location.replace(")
                .appendStringLiteral(topFilePath, '\'')
                .append(");\n");
        body.addContent(script.asContent());
        Content noScript = HtmlTree.NOSCRIPT(contents.noScriptMessage);
        body.addContent(noScript);
        if (configuration.allowTag(HtmlTag.MAIN)) {
            HtmlTree main = HtmlTree.MAIN(frame);
            body.addContent(main);
        } else {
            body.addContent(frame);
        }
        if (configuration.windowtitle.length() > 0) {
            printFramesDocument(configuration.windowtitle, body);
        } else {
            printFramesDocument(configuration.getText("doclet.Generated_Docs_Untitled"), body);
        }
    }

    
Print the frames version of the Html file header.
Called only when generating an HTML frames file.
Params:
title – Title of this HTML document
body – the body content tree to be added to the HTML document
Throws:
DocFileIOException – if there is an error writing the frames document/**
     * Print the frames version of the Html file header.
     * Called only when generating an HTML frames file.
     *
     * @param title Title of this HTML document
     * @param body the body content tree to be added to the HTML document
     * @throws DocFileIOException if there is an error writing the frames document
     */
    private void printFramesDocument(String title, HtmlTree body) throws DocFileIOException {
        DocType htmlDocType = DocType.forVersion(configuration.htmlVersion);
        Content htmlComment = contents.newPage;
        Head head = new Head(path, configuration.htmlVersion, configuration.docletVersion)
                .setTimestamp(!configuration.notimestamp, false)
                .setTitle(title)
                .setCharset(configuration.charset)
                .setStylesheets(configuration.getMainStylesheet(), configuration.getAdditionalStylesheets())
                .addDefaultScript(false)
                .addScript(getFramesScript());

        Content htmlTree = HtmlTree.HTML(configuration.getLocale().getLanguage(), head.toContent(), body);
        HtmlDocument htmlDocument = new HtmlDocument(htmlDocType, htmlComment, htmlTree);
        htmlDocument.write(DocFile.createFileForOutput(configuration, path));
   }

    
Get the frame sizes and their contents.
Returns:
a content tree for the frame details/**
     * Get the frame sizes and their contents.
     *
     * @return a content tree for the frame details
     */
    protected Content getFrameDetails() {
        HtmlTree leftContainerDiv = new HtmlTree(HtmlTag.DIV);
        HtmlTree rightContainerDiv = new HtmlTree(HtmlTag.DIV);
        leftContainerDiv.setStyle(HtmlStyle.leftContainer);
        rightContainerDiv.setStyle(HtmlStyle.rightContainer);
        if (configuration.showModules && configuration.modules.size() > 1) {
            addAllModulesFrameTag(leftContainerDiv);
        } else if (noOfPackages > 1) {
            addAllPackagesFrameTag(leftContainerDiv);
        }
        addAllClassesFrameTag(leftContainerDiv);
        addClassFrameTag(rightContainerDiv);
        HtmlTree mainContainer = HtmlTree.DIV(HtmlStyle.mainContainer, leftContainerDiv);
        mainContainer.addContent(rightContainerDiv);
        return mainContainer;
    }

    
Add the IFRAME tag for the frame that lists all modules.
Params:
contentTree – to which the information will be added/**
     * Add the IFRAME tag for the frame that lists all modules.
     *
     * @param contentTree to which the information will be added
     */
    private void addAllModulesFrameTag(Content contentTree) {
        HtmlTree frame = HtmlTree.IFRAME(DocPaths.MODULE_OVERVIEW_FRAME.getPath(),
                "packageListFrame", configuration.getText("doclet.All_Modules"));
        HtmlTree leftTop = HtmlTree.DIV(HtmlStyle.leftTop, frame);
        contentTree.addContent(leftTop);
    }

    
Add the IFRAME tag for the frame that lists all packages.
Params:
contentTree – the content tree to which the information will be added/**
     * Add the IFRAME tag for the frame that lists all packages.
     *
     * @param contentTree the content tree to which the information will be added
     */
    private void addAllPackagesFrameTag(Content contentTree) {
        HtmlTree frame = HtmlTree.IFRAME(DocPaths.OVERVIEW_FRAME.getPath(),
                "packageListFrame", configuration.getText("doclet.All_Packages"));
        HtmlTree leftTop = HtmlTree.DIV(HtmlStyle.leftTop, frame);
        contentTree.addContent(leftTop);
    }

    
Add the IFRAME tag for the frame that lists all classes.
Params:
contentTree – the content tree to which the information will be added/**
     * Add the IFRAME tag for the frame that lists all classes.
     *
     * @param contentTree the content tree to which the information will be added
     */
    private void addAllClassesFrameTag(Content contentTree) {
        HtmlTree frame = HtmlTree.IFRAME(DocPaths.ALLCLASSES_FRAME.getPath(),
                "packageFrame", configuration.getText("doclet.All_classes_and_interfaces"));
        HtmlTree leftBottom = HtmlTree.DIV(HtmlStyle.leftBottom, frame);
        contentTree.addContent(leftBottom);
    }

    
Add the IFRAME tag for the frame that describes the class in detail.
Params:
contentTree – the content tree to which the information will be added/**
     * Add the IFRAME tag for the frame that describes the class in detail.
     *
     * @param contentTree the content tree to which the information will be added
     */
    private void addClassFrameTag(Content contentTree) {
        HtmlTree frame = HtmlTree.IFRAME(configuration.topFile.getPath(), "classFrame",
                configuration.getText("doclet.Package_class_and_interface_descriptions"));
        frame.setStyle(HtmlStyle.rightIframe);
        contentTree.addContent(frame);
    }

    
Returns a content tree for the SCRIPT tag for the main page(index.html).
Returns:
a content for the SCRIPT tag/**
     * Returns a content tree for the SCRIPT tag for the main page(index.html).
     *
     * @return a content for the SCRIPT tag
     */
    protected Script getFramesScript() {
        return new Script("\n" +
                "    tmpTargetPage = \"\" + window.location.search;\n" +
                "    if (tmpTargetPage != \"\" && tmpTargetPage != \"undefined\")\n" +
                "        tmpTargetPage = tmpTargetPage.substring(1);\n" +
                "    if (tmpTargetPage.indexOf(\":\") != -1 || (tmpTargetPage != \"\" && !validURL(tmpTargetPage)))\n" +
                "        tmpTargetPage = \"undefined\";\n" +
                "    targetPage = tmpTargetPage;\n" +
                "    function validURL(url) {\n" +
                "        try {\n" +
                "            url = decodeURIComponent(url);\n" +
                "        }\n" +
                "        catch (error) {\n" +
                "            return false;\n" +
                "        }\n" +
                "        var pos = url.indexOf(\".html\");\n" +
                "        if (pos == -1 || pos != url.length - 5)\n" +
                "            return false;\n" +
                "        var allowNumber = false;\n" +
                "        var allowSep = false;\n" +
                "        var seenDot = false;\n" +
                "        for (var i = 0; i < url.length - 5; i++) {\n" +
                "            var ch = url.charAt(i);\n" +
                "            if ('a' <= ch && ch <= 'z' ||\n" +
                "                    'A' <= ch && ch <= 'Z' ||\n" +
                "                    ch == '$' ||\n" +
                "                    ch == '_' ||\n" +
                "                    ch.charCodeAt(0) > 127) {\n" +
                "                allowNumber = true;\n" +
                "                allowSep = true;\n" +
                "            } else if ('0' <= ch && ch <= '9'\n" +
                "                    || ch == '-') {\n" +
                "                if (!allowNumber)\n" +
                "                     return false;\n" +
                "            } else if (ch == '/' || ch == '.') {\n" +
                "                if (!allowSep)\n" +
                "                    return false;\n" +
                "                allowNumber = false;\n" +
                "                allowSep = false;\n" +
                "                if (ch == '.')\n" +
                "                     seenDot = true;\n" +
                "                if (ch == '/' && seenDot)\n" +
                "                     return false;\n" +
                "            } else {\n" +
                "                return false;\n" +
                "            }\n" +
                "        }\n" +
                "        return true;\n" +
                "    }\n" +
                "    function loadFrames() {\n" +
                "        if (targetPage != \"\" && targetPage != \"undefined\")\n" +
                "             top.classFrame.location = top.targetPage;\n" +
                "    }\n");
    }
}