| using System; | |
| namespace VersOne.Epub.Schema | |
| { | |
| /// <summary> | |
| /// <para>Represents a subject of the EPUB book.</para> | |
| /// <para> | |
| /// See <see href="https://www.w3.org/TR/epub-33/#sec-opf-dcsubject" />, | |
| /// <see href="https://idpf.org/epub/20/spec/OPF_2.0.1_draft.htm#Section2.2.3" />, | |
| /// and <see href="http://purl.org/dc/elements/1.1/subject" /> for more information. | |
| /// </para> | |
| /// </summary> | |
| public class EpubMetadataSubject | |
| { | |
| /// <summary> | |
| /// Initializes a new instance of the <see cref="EpubMetadataSubject" /> class. | |
| /// </summary> | |
| /// <param name="subject">The text content of this subject.</param> | |
| /// <param name="id">The unique ID of this subject or <c>null</c> if the subject doesn't have an ID.</param> | |
| /// <param name="textDirection">The text direction of this subject or <c>null</c> if the subject doesn't specify a text direction.</param> | |
| /// <param name="language">The language of this subject or <c>null</c> if the subject doesn't specify the language.</param> | |
| /// <exception cref="ArgumentNullException">The <paramref name="subject" /> parameter is <c>null</c>.</exception> | |
| public EpubMetadataSubject(string subject, string? id = null, EpubTextDirection? textDirection = null, string? language = null) | |
| { | |
| Subject = subject ?? throw new ArgumentNullException(nameof(subject)); | |
| Id = id; | |
| TextDirection = textDirection; | |
| Language = language; | |
| } | |
| /// <summary> | |
| /// <para>Gets the text content of this subject.</para> | |
| /// <para> | |
| /// See <see href="https://www.w3.org/TR/epub-33/#sec-opf-dcsubject" />, | |
| /// <see href="https://idpf.org/epub/20/spec/OPF_2.0.1_draft.htm#Section2.2.3" />, | |
| /// and <see href="http://purl.org/dc/elements/1.1/subject" /> for more information. | |
| /// </para> | |
| /// </summary> | |
| public string Subject { get; } | |
| /// <summary> | |
| /// <para>Gets the unique ID of this subject or <c>null</c> if the subject doesn't have an ID.</para> | |
| /// <para>See <see href="https://www.w3.org/TR/epub-33/#attrdef-id" /> for more information.</para> | |
| /// </summary> | |
| public string? Id { get; } | |
| /// <summary> | |
| /// <para>Gets the text direction of this subject or <c>null</c> if the subject doesn't specify a text direction.</para> | |
| /// <para>See <see href="https://www.w3.org/TR/epub-33/#attrdef-dir" /> for more information.</para> | |
| /// </summary> | |
| public EpubTextDirection? TextDirection { get; } | |
| /// <summary> | |
| /// <para>Gets the language of this subject or <c>null</c> if the subject doesn't specify the language.</para> | |
| /// <para>See <see href="https://www.w3.org/TR/epub-33/#attrdef-xml-lang" /> for more information.</para> | |
| /// </summary> | |
| public string? Language { get; } | |
| } | |
| } | |