70 lines
1.9 KiB
C#
70 lines
1.9 KiB
C#
using System;
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namespace Ooui
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{
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public class TextArea : FormControl
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{
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public event TargetEventHandler Change {
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add => AddEventListener ("change", value);
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remove => RemoveEventListener ("change", value);
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}
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public event TargetEventHandler Input {
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add => AddEventListener ("input", value);
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remove => RemoveEventListener ("input", value);
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}
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string val = "";
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public string Value {
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get => val;
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set => SetProperty (ref val, value ?? "", "value");
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}
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public int Rows {
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get => GetAttribute ("rows", 2);
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set => SetAttributeProperty ("rows", value);
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}
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public int Columns {
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get => GetAttribute ("cols", 20);
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set => SetAttributeProperty ("cols", value);
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}
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protected override bool HtmlNeedsFullEndElement => true;
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public TextArea ()
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: base ("textarea")
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{
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// Subscribe to the change event so we always get up-to-date values
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Change += (s, e) => {};
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}
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public TextArea (string text)
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: this ()
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{
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Value = text;
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}
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protected override bool TriggerEventFromMessage (Message message)
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{
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if (message.TargetId == Id && message.MessageType == MessageType.Event && (message.Key == "change" || message.Key == "input" || message.Key == "keyup")) {
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var v = message.Value != null ? Convert.ToString (message.Value) : "";
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if (val != v) {
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val = v;
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OnPropertyChanged ("Value");
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}
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}
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return base.TriggerEventFromMessage (message);
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}
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#if !NO_XML
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public override void WriteInnerHtml (System.Xml.XmlWriter w)
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{
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w.WriteString (val ?? "");
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}
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#endif
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}
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}
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