AngleSharp by AngleSharp

<PackageReference Include="AngleSharp" Version="0.9.5" />

.NET API 1,244,160 bytes

 HtmlLinkElement

Represents the HTML link element.
using AngleSharp.Dom.Collections; using AngleSharp.Dom.Css; using AngleSharp.Extensions; using AngleSharp.Html; using AngleSharp.Html.LinkRels; using AngleSharp.Network; using System.Threading.Tasks; namespace AngleSharp.Dom.Html { internal sealed class HtmlLinkElement : HtmlElement, IHtmlLinkElement, IHtmlElement, IElement, INode, IEventTarget, IMarkupFormattable, IParentNode, IChildNode, INonDocumentTypeChildNode, IElementCssInlineStyle, ILinkStyle, ILinkImport, ILoadableElement { private BaseLinkRelation _relation; private TokenList _relList; private SettableTokenList _sizes; internal bool IsVisited { get; set; } internal bool IsActive { get; set; } public IDownload CurrentDownload => ((_relation != null) ? _relation.Processor : null)?.Download; public string Href { get { return this.GetUrlAttribute(AttributeNames.Href); } set { this.SetOwnAttribute(AttributeNames.Href, value); } } public string TargetLanguage { get { return this.GetOwnAttribute(AttributeNames.HrefLang); } set { this.SetOwnAttribute(AttributeNames.HrefLang, value); } } public string Charset { get { return this.GetOwnAttribute(AttributeNames.Charset); } set { this.SetOwnAttribute(AttributeNames.Charset, value); } } public string Relation { get { return this.GetOwnAttribute(AttributeNames.Rel); } set { this.SetOwnAttribute(AttributeNames.Rel, value); } } public ITokenList RelationList { get { if (_relList == null) { _relList = new TokenList(this.GetOwnAttribute(AttributeNames.Rel)); CreateBindings(_relList, AttributeNames.Rel); } return _relList; } } public ISettableTokenList Sizes { get { if (_sizes == null) { _sizes = new SettableTokenList(this.GetOwnAttribute(AttributeNames.Sizes)); CreateBindings(_sizes, AttributeNames.Sizes); } return _sizes; } } public string Rev { get { return this.GetOwnAttribute(AttributeNames.Rev); } set { this.SetOwnAttribute(AttributeNames.Rev, value); } } public bool IsDisabled { get { return this.GetOwnAttribute(AttributeNames.Disabled).ToBoolean(false); } set { this.SetOwnAttribute(AttributeNames.Disabled, value ? string.Empty : null); } } public string Target { get { return this.GetOwnAttribute(AttributeNames.Target); } set { this.SetOwnAttribute(AttributeNames.Target, value); } } public string Media { get { return this.GetOwnAttribute(AttributeNames.Media); } set { this.SetOwnAttribute(AttributeNames.Media, value); } } public string Type { get { return this.GetOwnAttribute(AttributeNames.Type); } set { this.SetOwnAttribute(AttributeNames.Type, value); } } public IStyleSheet Sheet => (_relation as StyleSheetLinkRelation)?.Sheet; public IDocument Import => (_relation as ImportLinkRelation)?.Import; public HtmlLinkElement(Document owner, string prefix = null) : base(owner, TagNames.Link, prefix, NodeFlags.SelfClosing | NodeFlags.Special) { } internal override void SetupElement() { base.SetupElement(); string ownAttribute = this.GetOwnAttribute(AttributeNames.Rel); RegisterAttributeObserver(AttributeNames.Media, UpdateMedia); RegisterAttributeObserver(AttributeNames.Disabled, UpdateDisabled); RegisterAttributeObserver(AttributeNames.Href, UpdateSource); RegisterAttributeObserver(AttributeNames.Rel, UpdateRelation); if (ownAttribute != null) UpdateRelation(ownAttribute); } private void UpdateMedia(string value) { IStyleSheet sheet = Sheet; if (sheet != null) sheet.Media.MediaText = value; } private void UpdateDisabled(string value) { IStyleSheet sheet = Sheet; if (sheet != null) sheet.IsDisabled = (value != null); } private void UpdateRelation(string value) { BaseLinkRelation relation = _relation; _relation = CreateFirstLegalRelation(); UpdateSource(this.GetOwnAttribute(AttributeNames.Href)); } private void UpdateSource(string value) { Document owner = base.Owner; if (_relation != null && owner != null) { Task task = _relation.LoadAsync(); owner.DelayLoad(task); } } private BaseLinkRelation CreateFirstLegalRelation() { ITokenList relationList = RelationList; foreach (string item in relationList) { BaseLinkRelation baseLinkRelation = Factory.LinkRelations.Create(this, item); if (baseLinkRelation != null) return baseLinkRelation; } return null; } } }