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 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package jdk.javadoc.internal.doclets.formats.html;

import java.util.Arrays;
import java.util.List;

import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.VariableElement;

import jdk.javadoc.internal.doclets.formats.html.markup.ContentBuilder;
import jdk.javadoc.internal.doclets.formats.html.markup.Entity;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlStyle;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTree;
import jdk.javadoc.internal.doclets.formats.html.markup.StringContent;
import jdk.javadoc.internal.doclets.formats.html.markup.Table;
import jdk.javadoc.internal.doclets.formats.html.markup.TableHeader;
import jdk.javadoc.internal.doclets.toolkit.Content;
import jdk.javadoc.internal.doclets.toolkit.FieldWriter;
import jdk.javadoc.internal.doclets.toolkit.MemberSummaryWriter;

/**
 * Writes field documentation in HTML format.
 *
 *  <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>
 */
public class FieldWriterImpl extends AbstractMemberWriter
    implements FieldWriter, MemberSummaryWriter {

    public FieldWriterImpl(SubWriterHolderWriter writer, TypeElement typeElement) {
        super(writer, typeElement);
    }

    public FieldWriterImpl(SubWriterHolderWriter writer) {
        super(writer);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Content getMemberSummaryHeader(TypeElement typeElement,
            Content memberSummaryTree) {
        memberSummaryTree.add(MarkerComments.START_OF_FIELD_SUMMARY);
        Content memberTree = new ContentBuilder();
        writer.addSummaryHeader(this, typeElement, memberTree);
        return memberTree;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addMemberTree(Content memberSummaryTree, Content memberTree) {
        writer.addMemberTree(HtmlStyle.fieldSummary, memberSummaryTree, memberTree);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Content getFieldDetailsTreeHeader(TypeElement typeElement, Content memberDetailsTree) {
        memberDetailsTree.add(MarkerComments.START_OF_FIELD_DETAILS);
        Content fieldDetailsTree = new ContentBuilder();
        Content heading = HtmlTree.HEADING(Headings.TypeDeclaration.DETAILS_HEADING,
                contents.fieldDetailsLabel);
        fieldDetailsTree.add(links.createAnchor(
                SectionName.FIELD_DETAIL));
        fieldDetailsTree.add(heading);
        return fieldDetailsTree;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Content getFieldDocTreeHeader(VariableElement field, Content fieldDetailsTree) {
        Content fieldTree = new ContentBuilder();
        Content heading = new HtmlTree(Headings.TypeDeclaration.MEMBER_HEADING);
        heading.add(links.createAnchor(name(field), new StringContent(name(field))));
        fieldTree.add(heading);
        return HtmlTree.SECTION(HtmlStyle.detail, fieldTree);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Content getSignature(VariableElement field) {
        return new MemberSignature(field)
                .addType(utils.asInstantiatedFieldType(typeElement, field))
                .toContent();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addDeprecated(VariableElement field, Content fieldTree) {
        addDeprecatedInfo(field, fieldTree);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addComments(VariableElement field, Content fieldTree) {
        if (!utils.getFullBody(field).isEmpty()) {
            writer.addInlineComment(field, fieldTree);
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addTags(VariableElement field, Content fieldTree) {
        writer.addTagsInfo(field, fieldTree);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Content getFieldDetails(Content fieldDetailsTreeHeader, Content fieldDetailsTree) {
        Content fieldDetails = new ContentBuilder(fieldDetailsTreeHeader, fieldDetailsTree);
        return getMemberTree(HtmlTree.SECTION(HtmlStyle.fieldDetails, fieldDetails));
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Content getFieldDoc(Content fieldTree) {
        return getMemberTree(fieldTree);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addSummaryLabel(Content memberTree) {
        Content label = HtmlTree.HEADING(Headings.TypeDeclaration.SUMMARY_HEADING,
                contents.fieldSummaryLabel);
        memberTree.add(label);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public TableHeader getSummaryTableHeader(Element member) {
        return new TableHeader(contents.modifierAndTypeLabel, contents.fieldLabel,
                contents.descriptionLabel);
    }

    @Override
    protected Table createSummaryTable() {
        List<HtmlStyle> bodyRowStyles = Arrays.asList(HtmlStyle.colFirst, HtmlStyle.colSecond,
                HtmlStyle.colLast);

        return new Table(HtmlStyle.memberSummary)
                .setCaption(contents.fields)
                .setHeader(getSummaryTableHeader(typeElement))
                .setRowScopeColumn(1)
                .setColumnStyles(bodyRowStyles);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addSummaryAnchor(TypeElement typeElement, Content memberTree) {
        memberTree.add(links.createAnchor(
                SectionName.FIELD_SUMMARY));
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addInheritedSummaryAnchor(TypeElement typeElement, Content inheritedTree) {
        inheritedTree.add(links.createAnchor(
                SectionName.FIELDS_INHERITANCE, configuration.getClassName(typeElement)));
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addInheritedSummaryLabel(TypeElement typeElement, Content inheritedTree) {
        Content classLink = writer.getPreQualifiedClassLink(
                LinkInfoImpl.Kind.MEMBER, typeElement, false);
        Content label;
        if (configuration.summarizeOverriddenMethods) {
            label = new StringContent(utils.isClass(typeElement)
                    ? resources.getText("doclet.Fields_Declared_In_Class")
                    : resources.getText("doclet.Fields_Declared_In_Interface"));
        } else {
            label = new StringContent(utils.isClass(typeElement)
                    ? resources.getText("doclet.Fields_Inherited_From_Class")
                    : resources.getText("doclet.Fields_Inherited_From_Interface"));
        }
        Content labelHeading = HtmlTree.HEADING(Headings.TypeDeclaration.INHERITED_SUMMARY_HEADING,
                label);
        labelHeading.add(Entity.NO_BREAK_SPACE);
        labelHeading.add(classLink);
        inheritedTree.add(labelHeading);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected void addSummaryLink(LinkInfoImpl.Kind context, TypeElement typeElement, Element member,
            Content tdSummary) {
        Content memberLink = HtmlTree.SPAN(HtmlStyle.memberNameLink,
                writer.getDocLink(context, typeElement , member, name(member), false));
        Content code = HtmlTree.CODE(memberLink);
        tdSummary.add(code);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected void addInheritedSummaryLink(TypeElement typeElement, Element member, Content linksTree) {
        linksTree.add(
                writer.getDocLink(LinkInfoImpl.Kind.MEMBER, typeElement, member,
                name(member), false));
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected void addSummaryType(Element member, Content tdSummaryType) {
        addModifierAndType(member, utils.asInstantiatedFieldType(typeElement, (VariableElement)member), tdSummaryType);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected Content getDeprecatedLink(Element member) {
        String name = utils.getFullyQualifiedName(member) + "." + member.getSimpleName();
        return writer.getDocLink(LinkInfoImpl.Kind.MEMBER, member, name);
    }

    @Override
    public Content getMemberTreeHeader(){
        return writer.getMemberTreeHeader();
    }
}
