/*

 * 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.javadoc.*;

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

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

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

/**

 * Writes method documentation in HTML format.

 *

 * @author Robert Field

 * @author Atul M Dambalkar

 * @author Jamie Ho (rewrite)

 * @author Bhavesh Patel (Modified)

 */

public class MethodWriterImpl extends AbstractExecutableMemberWriter

        implements MethodWriter, MemberSummaryWriter {

    /**

     * Construct a new MethodWriterImpl.

     *

     * @param writer the writer for the class that the methods belong to.

     * @param classDoc the class being documented.

     */

    public MethodWriterImpl(SubWriterHolderWriter writer, ClassDoc classDoc) {

        super(writer, classDoc);

    }

    /**

     * Construct a new MethodWriterImpl.

     *

     * @param writer The writer for the class that the methods belong to.

     */

    public MethodWriterImpl(SubWriterHolderWriter writer) {

        super(writer);

    }

    /**

     * {@inheritDoc}

     */

    public Content getMemberSummaryHeader(ClassDoc classDoc,

            Content memberSummaryTree) {

        memberSummaryTree.addContent(HtmlConstants.START_OF_METHOD_SUMMARY);

        Content memberTree = writer.getMemberTreeHeader();

        writer.addSummaryHeader(this, classDoc, memberTree);

        return memberTree;

    }

    /**

     * {@inheritDoc}

     */

    public Content getMethodDetailsTreeHeader(ClassDoc classDoc,

            Content memberDetailsTree) {

        memberDetailsTree.addContent(HtmlConstants.START_OF_METHOD_DETAILS);

        Content methodDetailsTree = writer.getMemberTreeHeader();

        methodDetailsTree.addContent(writer.getMarkerAnchor("method_detail"));

        Content heading = HtmlTree.HEADING(HtmlConstants.DETAILS_HEADING,

                writer.methodDetailsLabel);

        methodDetailsTree.addContent(heading);

        return methodDetailsTree;

    }

    /**

     * {@inheritDoc}

     */

    public Content getMethodDocTreeHeader(MethodDoc method,

            Content methodDetailsTree) {

        String erasureAnchor;

        if ((erasureAnchor = getErasureAnchor(method)) != null) {

            methodDetailsTree.addContent(writer.getMarkerAnchor((erasureAnchor)));

        }

        methodDetailsTree.addContent(

                writer.getMarkerAnchor(writer.getAnchor(method)));

        Content methodDocTree = writer.getMemberTreeHeader();

        Content heading = new HtmlTree(HtmlConstants.MEMBER_HEADING);

        heading.addContent(method.name());

        methodDocTree.addContent(heading);

        return methodDocTree;

    }

    /**

     * Get the signature for the given method.

     *

     * @param method the method being documented.

     * @return a content object for the signature

     */

    public Content getSignature(MethodDoc method) {

        writer.displayLength = 0;

        Content pre = new HtmlTree(HtmlTag.PRE);

        writer.addAnnotationInfo(method, pre);

        addModifiers(method, pre);

        addTypeParameters(method, pre);

        addReturnType(method, pre);

        if (configuration().linksource) {

            Content methodName = new StringContent(method.name());

            writer.addSrcLink(method, methodName, pre);

        } else {

            addName(method.name(), pre);

        }

        addParameters(method, pre);

        addExceptions(method, pre);

        return pre;

    }

    /**

     * {@inheritDoc}

     */

    public void addDeprecated(MethodDoc method, Content methodDocTree) {

        addDeprecatedInfo(method, methodDocTree);

    }

    /**

     * {@inheritDoc}

     */

    public void addComments(Type holder, MethodDoc method, Content methodDocTree) {

        ClassDoc holderClassDoc = holder.asClassDoc();

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

            if (holder.asClassDoc().equals(classdoc) ||

                    (! (holderClassDoc.isPublic() ||

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

                writer.addInlineComment(method, methodDocTree);

            } else {

                Content link = new RawHtml(

                        writer.getDocLink(LinkInfoImpl.CONTEXT_METHOD_DOC_COPY,

                        holder.asClassDoc(), method,

                        holder.asClassDoc().isIncluded() ?

                            holder.typeName() : holder.qualifiedTypeName(),

                            false));

                Content codelLink = HtmlTree.CODE(link);

                Content strong = HtmlTree.STRONG(holder.asClassDoc().isClass()?

                    writer.descfrmClassLabel : writer.descfrmInterfaceLabel);

                strong.addContent(writer.getSpace());

                strong.addContent(codelLink);

                methodDocTree.addContent(HtmlTree.DIV(HtmlStyle.block, strong));

                writer.addInlineComment(method, methodDocTree);

            }

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addTags(MethodDoc method, Content methodDocTree) {

        writer.addTagsInfo(method, methodDocTree);

    }

    /**

     * {@inheritDoc}

     */

    public Content getMethodDetails(Content methodDetailsTree) {

        return getMemberTree(methodDetailsTree);

    }

    /**

     * {@inheritDoc}

     */

    public Content getMethodDoc(Content methodDocTree,

            boolean isLastContent) {

        return getMemberTree(methodDocTree, isLastContent);

    }

    /**

     * Close the writer.

     */

    public void close() throws IOException {

        writer.close();

    }

    public int getMemberKind() {

        return VisibleMemberMap.METHODS;

    }

    /**

     * {@inheritDoc}

     */

    public void addSummaryLabel(Content memberTree) {

        Content label = HtmlTree.HEADING(HtmlConstants.SUMMARY_HEADING,

                writer.getResource("doclet.Method_Summary"));

        memberTree.addContent(label);

    }

    /**

     * {@inheritDoc}

     */

    public String getTableSummary() {

        return configuration().getText("doclet.Member_Table_Summary",

                configuration().getText("doclet.Method_Summary"),

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

    }

    /**

     * {@inheritDoc}

     */

    public String getCaption() {

        return configuration().getText("doclet.Methods");

    }

    /**

     * {@inheritDoc}

     */

    public String[] getSummaryTableHeader(ProgramElementDoc member) {

        String[] header = new String[] {

            writer.getModifierTypeHeader(),

            configuration().getText("doclet.0_and_1",

                    configuration().getText("doclet.Method"),

                    configuration().getText("doclet.Description"))

        };

        return header;

    }

    /**

     * {@inheritDoc}

     */

    public void addSummaryAnchor(ClassDoc cd, Content memberTree) {

        memberTree.addContent(writer.getMarkerAnchor("method_summary"));

    }

    /**

     * {@inheritDoc}

     */

    public void addInheritedSummaryAnchor(ClassDoc cd, Content inheritedTree) {

        inheritedTree.addContent(writer.getMarkerAnchor(

                "methods_inherited_from_class_" +

                configuration().getClassName(cd)));

    }

    /**

     * {@inheritDoc}

     */

    public void addInheritedSummaryLabel(ClassDoc cd, Content inheritedTree) {

        Content classLink = new RawHtml(writer.getPreQualifiedClassLink(

                LinkInfoImpl.CONTEXT_MEMBER, cd, false));

        Content label = new StringContent(cd.isClass() ?

            configuration().getText("doclet.Methods_Inherited_From_Class") :

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

        Content labelHeading = HtmlTree.HEADING(HtmlConstants.INHERITED_SUMMARY_HEADING,

                label);

        labelHeading.addContent(writer.getSpace());

        labelHeading.addContent(classLink);

        inheritedTree.addContent(labelHeading);

    }

    /**

     * {@inheritDoc}

     */

    protected void addSummaryType(ProgramElementDoc member, Content tdSummaryType) {

        MethodDoc meth = (MethodDoc)member;

        addModifierAndType(meth, meth.returnType(), tdSummaryType);

    }

    /**

     * {@inheritDoc}

     */

    protected static void addOverridden(HtmlDocletWriter writer,

            Type overriddenType, MethodDoc method, Content dl) {

        if(writer.configuration.nocomment){

            return;

        }

        ClassDoc holderClassDoc = overriddenType.asClassDoc();

        if (! (holderClassDoc.isPublic() ||

            Util.isLinkable(holderClassDoc, writer.configuration()))) {

            //This is an implementation detail that should not be documented.

            return;

        }

        if (overriddenType.asClassDoc().isIncluded() && ! method.isIncluded()) {

            //The class is included but the method is not.  That means that it

            //is not visible so don't document this.

            return;

        }

        Content label = writer.overridesLabel;

        int context = LinkInfoImpl.CONTEXT_METHOD_OVERRIDES;

        if (method != null) {

            if(overriddenType.asClassDoc().isAbstract() && method.isAbstract()){

                //Abstract method is implemented from abstract class,

                //not overridden

                label = writer.specifiedByLabel;

                context = LinkInfoImpl.CONTEXT_METHOD_SPECIFIED_BY;

            }

            Content dt = HtmlTree.DT(HtmlTree.STRONG(label));

            dl.addContent(dt);

            Content overriddenTypeLink = new RawHtml(

                    writer.getLink(new LinkInfoImpl(context, overriddenType)));

            Content codeOverridenTypeLink = HtmlTree.CODE(overriddenTypeLink);

            String name = method.name();

            Content methlink = new RawHtml(writer.getLink(

                    new LinkInfoImpl(LinkInfoImpl.CONTEXT_MEMBER,

                    overriddenType.asClassDoc(),

                    writer.getAnchor(method), name, false)));

            Content codeMethLink = HtmlTree.CODE(methlink);

            Content dd = HtmlTree.DD(codeMethLink);

            dd.addContent(writer.getSpace());

            dd.addContent(writer.getResource("doclet.in_class"));

            dd.addContent(writer.getSpace());

            dd.addContent(codeOverridenTypeLink);

            dl.addContent(dd);

        }

    }

    /**

     * Parse the <Code> tag and return the text.

     */

    protected String parseCodeTag(String tag){

        if(tag == null){

            return "";

        }

        String lc = tag.toLowerCase();

        int begin = lc.indexOf("<code>");

        int end = lc.indexOf("</code>");

        if(begin == -1 || end == -1 || end <= begin){

            return tag;

        } else {

            return tag.substring(begin + 6, end);

        }

    }

    /**

     * {@inheritDoc}

     */

    protected static void addImplementsInfo(HtmlDocletWriter writer,

            MethodDoc method, Content dl) {

        if(writer.configuration.nocomment){

            return;

        }

        ImplementedMethods implementedMethodsFinder =

                new ImplementedMethods(method, writer.configuration);

        MethodDoc[] implementedMethods = implementedMethodsFinder.build();

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

            MethodDoc implementedMeth = implementedMethods[i];

            Type intfac = implementedMethodsFinder.getMethodHolder(implementedMeth);

            Content intfaclink = new RawHtml(writer.getLink(new LinkInfoImpl(

                    LinkInfoImpl.CONTEXT_METHOD_SPECIFIED_BY, intfac)));

            Content codeIntfacLink = HtmlTree.CODE(intfaclink);

            Content dt = HtmlTree.DT(HtmlTree.STRONG(writer.specifiedByLabel));

            dl.addContent(dt);

            Content methlink = new RawHtml(writer.getDocLink(

                    LinkInfoImpl.CONTEXT_MEMBER, implementedMeth,

                    implementedMeth.name(), false));

            Content codeMethLink = HtmlTree.CODE(methlink);

            Content dd = HtmlTree.DD(codeMethLink);

            dd.addContent(writer.getSpace());

            dd.addContent(writer.getResource("doclet.in_interface"));

            dd.addContent(writer.getSpace());

            dd.addContent(codeIntfacLink);

            dl.addContent(dd);

        }

    }

    /**

     * Add the return type.

     *

     * @param method the method being documented.

     * @param htmltree the content tree to which the return type will be added

     */

    protected void addReturnType(MethodDoc method, Content htmltree) {

        Type type = method.returnType();

        if (type != null) {

            Content linkContent = new RawHtml(writer.getLink(

                    new LinkInfoImpl(LinkInfoImpl.CONTEXT_RETURN_TYPE, type)));

            htmltree.addContent(linkContent);

            htmltree.addContent(writer.getSpace());

        }

    }

    /**

     * {@inheritDoc}

     */

    protected Content getNavSummaryLink(ClassDoc cd, boolean link) {

        if (link) {

            return writer.getHyperLink("", (cd == null)?

                "method_summary":

                "methods_inherited_from_class_" +

                configuration().getClassName(cd),

                writer.getResource("doclet.navMethod"));

        } else {

            return writer.getResource("doclet.navMethod");

        }

    }

    /**

     * {@inheritDoc}

     */

    protected void addNavDetailLink(boolean link, Content liNav) {

        if (link) {

            liNav.addContent(writer.getHyperLink("", "method_detail",

                    writer.getResource("doclet.navMethod")));

        } else {

            liNav.addContent(writer.getResource("doclet.navMethod"));

        }

    }

}