52 lines
1.6 KiB
C#
52 lines
1.6 KiB
C#
using System;
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namespace Ooui
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{
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public class Select : FormControl
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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 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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public Select ()
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: base ("select")
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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 void AddOption (string label, string value)
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{
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AppendChild (new Option { Label = label, Value = value });
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}
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protected override void OnChildInsertedBefore (Node newChild, Node referenceChild)
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{
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base.OnChildInsertedBefore (newChild, referenceChild);
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if (string.IsNullOrEmpty (val) && newChild is Option o && !string.IsNullOrEmpty (o.Value)) {
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val = o.Value;
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}
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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")) {
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val = message.Value != null ? Convert.ToString (message.Value) : "";
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}
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return base.TriggerEventFromMessage (message);
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}
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}
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}
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