/*

 * Copyright (c) 1997, 2012, 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 com.sun.tools.doclets.formats.html;

import java.io.IOException;

import java.util.*;

import com.sun.javadoc.*;

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

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

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

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

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

/**

 * Generate the Class Information Page.

 *

 *  <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>

 *

 * @see com.sun.javadoc.ClassDoc

 * @see java.util.Collections

 * @see java.util.List

 * @see java.util.ArrayList

 * @see java.util.HashMap

 *

 * @author Atul M Dambalkar

 * @author Robert Field

 * @author Bhavesh Patel (Modified)

 */

public class ClassWriterImpl extends SubWriterHolderWriter

        implements ClassWriter {

    protected ClassDoc classDoc;

    protected ClassTree classtree;

    protected ClassDoc prev;

    protected ClassDoc next;

    /**

     * @param classDoc the class being documented.

     * @param prevClass the previous class that was documented.

     * @param nextClass the next class being documented.

     * @param classTree the class tree for the given class.

     */

    public ClassWriterImpl (ClassDoc classDoc,

            ClassDoc prevClass, ClassDoc nextClass, ClassTree classTree)

            throws Exception {

        super(ConfigurationImpl.getInstance(), DocPath.forClass(classDoc));

        this.classDoc = classDoc;

        configuration.currentcd = classDoc;

        this.classtree = classTree;

        this.prev = prevClass;

        this.next = nextClass;

    }

    /**

     * Get this package link.

     *

     * @return a content tree for the package link

     */

    protected Content getNavLinkPackage() {

                packageLabel);

        Content li = HtmlTree.LI(linkContent);

        return li;

    }

    /**

     * Get the class link.

     *

     * @return a content tree for the class link

     */

    protected Content getNavLinkClass() {

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

        return li;

    }

    /**

     * Get the class use link.

     *

     * @return a content tree for the class use link

     */

    protected Content getNavLinkClassUse() {

        Content li = HtmlTree.LI(linkContent);

        return li;

    }

    /**

     * Get link to previous class.

     *

     * @return a content tree for the previous class link

     */

    public Content getNavLinkPrevious() {

        Content li;

        if (prev != null) {

            Content prevLink = new RawHtml(getLink(new LinkInfoImpl(

                    LinkInfoImpl.CONTEXT_CLASS, prev, "",

                    configuration.getText("doclet.Prev_Class"), true)));

            li = HtmlTree.LI(prevLink);

        }

        else

            li = HtmlTree.LI(prevclassLabel);

        return li;

    }

    /**

     * Get link to next class.

     *

     * @return a content tree for the next class link

     */

    public Content getNavLinkNext() {

        Content li;

        if (next != null) {

            Content nextLink = new RawHtml(getLink(new LinkInfoImpl(

                    LinkInfoImpl.CONTEXT_CLASS, next, "",

                    configuration.getText("doclet.Next_Class"), true)));

            li = HtmlTree.LI(nextLink);

        }

        else

            li = HtmlTree.LI(nextclassLabel);

        return li;

    }

    /**

     * {@inheritDoc}

     */

    public Content getHeader(String header) {

        String pkgname = (classDoc.containingPackage() != null)?

            classDoc.containingPackage().name(): "";

        String clname = classDoc.name();

        Content bodyTree = getBody(true, getWindowTitle(clname));

        addTop(bodyTree);

        addNavLinks(true, bodyTree);

        bodyTree.addContent(HtmlConstants.START_OF_CLASS_DATA);

        HtmlTree div = new HtmlTree(HtmlTag.DIV);

        div.addStyle(HtmlStyle.header);

        if (pkgname.length() > 0) {

            Content pkgNameContent = new StringContent(pkgname);

            Content pkgNameDiv = HtmlTree.DIV(HtmlStyle.subTitle, pkgNameContent);

            div.addContent(pkgNameDiv);

        }

        LinkInfoImpl linkInfo = new LinkInfoImpl( LinkInfoImpl.CONTEXT_CLASS_HEADER,

                classDoc, false);

        //Let's not link to ourselves in the header.

        linkInfo.linkToSelf = false;

        Content headerContent = new StringContent(header);

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

                HtmlStyle.title, headerContent);

        heading.addContent(new RawHtml(getTypeParameterLinks(linkInfo)));

        div.addContent(heading);

        bodyTree.addContent(div);

        return bodyTree;

    }

    /**

     * {@inheritDoc}

     */

    public Content getClassContentHeader() {

        return getContentHeader();

    }

    /**

     * {@inheritDoc}

     */

    public void addFooter(Content contentTree) {

        contentTree.addContent(HtmlConstants.END_OF_CLASS_DATA);

        addNavLinks(false, contentTree);

        addBottom(contentTree);

    }

    /**

     * {@inheritDoc}

     */

    public void printDocument(Content contentTree) throws IOException {

        printHtmlDocument(configuration.metakeywords.getMetaKeywords(classDoc),

                true, contentTree);

    }

    /**

     * {@inheritDoc}

     */

    public Content getClassInfoTreeHeader() {

        return getMemberTreeHeader();

    }

    /**

     * {@inheritDoc}

     */

    public Content getClassInfo(Content classInfoTree) {

        return getMemberTree(HtmlStyle.description, classInfoTree);

    }

    /**

     * {@inheritDoc}

     */

    public void addClassSignature(String modifiers, Content classInfoTree) {

        boolean isInterface = classDoc.isInterface();

        classInfoTree.addContent(new HtmlTree(HtmlTag.BR));

        Content pre = new HtmlTree(HtmlTag.PRE);

        addAnnotationInfo(classDoc, pre);

        pre.addContent(modifiers);

        LinkInfoImpl linkInfo = new LinkInfoImpl(

                LinkInfoImpl.CONTEXT_CLASS_SIGNATURE, classDoc, false);

        //Let's not link to ourselves in the signature.

        linkInfo.linkToSelf = false;

        Content className = new StringContent(classDoc.name());

        Content parameterLinks = new RawHtml(getTypeParameterLinks(linkInfo));

        if (configuration().linksource) {

            addSrcLink(classDoc, className, pre);

            pre.addContent(parameterLinks);

        } else {

            Content span = HtmlTree.SPAN(HtmlStyle.strong, className);

            span.addContent(parameterLinks);

            pre.addContent(span);

        }

        if (!isInterface) {

            Type superclass = Util.getFirstVisibleSuperClass(classDoc,

                    configuration());

            if (superclass != null) {

                pre.addContent(DocletConstants.NL);

                pre.addContent("extends ");

                Content link = new RawHtml(getLink(new LinkInfoImpl(

                        LinkInfoImpl.CONTEXT_CLASS_SIGNATURE_PARENT_NAME,

                        superclass)));

                pre.addContent(link);

            }

        }

        Type[] implIntfacs = classDoc.interfaceTypes();

        if (implIntfacs != null && implIntfacs.length > 0) {

            int counter = 0;

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

                ClassDoc classDoc = implIntfacs[i].asClassDoc();

                if (! (classDoc.isPublic() ||

                        Util.isLinkable(classDoc, configuration()))) {

                    continue;

                }

                if (counter == 0) {

                    pre.addContent(DocletConstants.NL);

                    pre.addContent(isInterface? "extends " : "implements ");

                } else {

                    pre.addContent(", ");

                }

                Content link = new RawHtml(getLink(new LinkInfoImpl(

                        LinkInfoImpl.CONTEXT_CLASS_SIGNATURE_PARENT_NAME,

                        implIntfacs[i])));

                pre.addContent(link);

                counter++;

            }

        }

        classInfoTree.addContent(pre);

    }

    /**

     * {@inheritDoc}

     */

    public void addClassDescription(Content classInfoTree) {

        if(!configuration.nocomment) {

            // generate documentation for the class.

            if (classDoc.inlineTags().length > 0) {

                addInlineComment(classDoc, classInfoTree);

            }

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addClassTagInfo(Content classInfoTree) {

        if(!configuration.nocomment) {

            // Print Information about all the tags here

            addTagsInfo(classDoc, classInfoTree);

        }

    }

    /**

     * Get the class hierarchy tree for the given class.

     *

     * @param type the class to print the hierarchy for

     * @return a content tree for class inheritence

     */

    private Content getClassInheritenceTree(Type type) {

        Type sup;

        HtmlTree classTreeUl = new HtmlTree(HtmlTag.UL);

        classTreeUl.addStyle(HtmlStyle.inheritance);

        Content liTree = null;

        do {

            sup = Util.getFirstVisibleSuperClass(

                    type instanceof ClassDoc ? (ClassDoc) type : type.asClassDoc(),

                    configuration());

            if (sup != null) {

                HtmlTree ul = new HtmlTree(HtmlTag.UL);

                ul.addStyle(HtmlStyle.inheritance);

                ul.addContent(getTreeForClassHelper(type));

                if (liTree != null)

                    ul.addContent(liTree);

                Content li = HtmlTree.LI(ul);

                liTree = li;

                type = sup;

            }

            else

                classTreeUl.addContent(getTreeForClassHelper(type));

        }

        while (sup != null);

        if (liTree != null)

            classTreeUl.addContent(liTree);

        return classTreeUl;

    }

    /**

     * Get the class helper tree for the given class.

     *

     * @param type the class to print the helper for

     * @return a content tree for class helper

     */

    private Content getTreeForClassHelper(Type type) {

        Content li = new HtmlTree(HtmlTag.LI);

        if (type.equals(classDoc)) {

            String typeParameters = getTypeParameterLinks(

                    new LinkInfoImpl(LinkInfoImpl.CONTEXT_TREE,

                    classDoc, false));

            if (configuration.shouldExcludeQualifier(

                    classDoc.containingPackage().name())) {

                li.addContent(type.asClassDoc().name());

                li.addContent(new RawHtml(typeParameters));

            } else {

                li.addContent(type.asClassDoc().qualifiedName());

                li.addContent(new RawHtml(typeParameters));

            }

        } else {

            Content link = new RawHtml(getLink(new LinkInfoImpl(

                    LinkInfoImpl.CONTEXT_CLASS_TREE_PARENT,

                    type instanceof ClassDoc ? (ClassDoc) type : type,

                    configuration.getClassName(type.asClassDoc()), false)));

            li.addContent(link);

        }

        return li;

    }

    /**

     * {@inheritDoc}

     */

    public void addClassTree(Content classContentTree) {

        if (!classDoc.isClass()) {

            return;

        }

        classContentTree.addContent(getClassInheritenceTree(classDoc));

    }

    /**

     * {@inheritDoc}

     */

    public void addTypeParamInfo(Content classInfoTree) {

        if (classDoc.typeParamTags().length > 0) {

            TagletOutput output = (new ParamTaglet()).getTagletOutput(classDoc,

                    getTagletWriterInstance(false));

            Content typeParam = new RawHtml(output.toString());

            Content dl = HtmlTree.DL(typeParam);

            classInfoTree.addContent(dl);

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addSubClassInfo(Content classInfoTree) {

        if (classDoc.isClass()) {

            if (classDoc.qualifiedName().equals("java.lang.Object") ||

                    classDoc.qualifiedName().equals("org.omg.CORBA.Object")) {

                return;    // Don't generate the list, too huge

            }

            List<ClassDoc> subclasses = classtree.subs(classDoc, false);

            if (subclasses.size() > 0) {

                Content label = getResource(

                        "doclet.Subclasses");

                Content dt = HtmlTree.DT(label);

                Content dl = HtmlTree.DL(dt);

                dl.addContent(getClassLinks(LinkInfoImpl.CONTEXT_SUBCLASSES,

                        subclasses));

                classInfoTree.addContent(dl);

            }

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addSubInterfacesInfo(Content classInfoTree) {

        if (classDoc.isInterface()) {

            List<ClassDoc> subInterfaces = classtree.allSubs(classDoc, false);

            if (subInterfaces.size() > 0) {

                Content label = getResource(

                        "doclet.Subinterfaces");

                Content dt = HtmlTree.DT(label);

                Content dl = HtmlTree.DL(dt);

                dl.addContent(getClassLinks(LinkInfoImpl.CONTEXT_SUBINTERFACES,

                        subInterfaces));

                classInfoTree.addContent(dl);

            }

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addInterfaceUsageInfo (Content classInfoTree) {

        if (! classDoc.isInterface()) {

            return;

        }

        if (classDoc.qualifiedName().equals("java.lang.Cloneable") ||

                classDoc.qualifiedName().equals("java.io.Serializable")) {

            return;   // Don't generate the list, too big

        }

        List<ClassDoc> implcl = classtree.implementingclasses(classDoc);

        if (implcl.size() > 0) {

            Content label = getResource(

                    "doclet.Implementing_Classes");

            Content dt = HtmlTree.DT(label);

            Content dl = HtmlTree.DL(dt);

            dl.addContent(getClassLinks(LinkInfoImpl.CONTEXT_IMPLEMENTED_CLASSES,

                    implcl));

            classInfoTree.addContent(dl);

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addImplementedInterfacesInfo(Content classInfoTree) {

        //NOTE:  we really should be using ClassDoc.interfaceTypes() here, but

        //       it doesn't walk up the tree like we want it to.

        List<Type> interfaceArray = Util.getAllInterfaces(classDoc, configuration);

        if (classDoc.isClass() && interfaceArray.size() > 0) {

            Content label = getResource(

                    "doclet.All_Implemented_Interfaces");

            Content dt = HtmlTree.DT(label);

            Content dl = HtmlTree.DL(dt);

            dl.addContent(getClassLinks(LinkInfoImpl.CONTEXT_IMPLEMENTED_INTERFACES,

                    interfaceArray));

            classInfoTree.addContent(dl);

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addSuperInterfacesInfo(Content classInfoTree) {

        //NOTE:  we really should be using ClassDoc.interfaceTypes() here, but

        //       it doesn't walk up the tree like we want it to.

        List<Type> interfaceArray = Util.getAllInterfaces(classDoc, configuration);

        if (classDoc.isInterface() && interfaceArray.size() > 0) {

            Content label = getResource(

                    "doclet.All_Superinterfaces");

            Content dt = HtmlTree.DT(label);

            Content dl = HtmlTree.DL(dt);

            dl.addContent(getClassLinks(LinkInfoImpl.CONTEXT_SUPER_INTERFACES,

                    interfaceArray));

            classInfoTree.addContent(dl);

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addNestedClassInfo(Content classInfoTree) {

        ClassDoc outerClass = classDoc.containingClass();

        if (outerClass != null) {

            Content label;

            if (outerClass.isInterface()) {

                label = getResource(

                        "doclet.Enclosing_Interface");