Ooui-tws-port/Ooui.Forms/PlatformRenderer.cs

using System;
using Xamarin.Forms;

namespace Ooui.Forms
{
    public class PlatformRenderer : Ooui.Div, IDisposable
	{
		readonly Platform platform;

		public Platform Platform => platform;

        public override bool WantsFullScreen => true;

		public PlatformRenderer (Platform platform)
		{
			this.platform = platform;
		}

        protected override bool TriggerEventFromMessage (Message message)
        {
            if (disposedValue)
                return false;
            if (message.TargetId == "window" && message.Key == "resize" && message.Value is Newtonsoft.Json.Linq.JObject j) {
                var width = (double)j["width"];
                var height = (double)j["height"];
                Platform.Element.Style.Width = width;
                Platform.Element.Style.Height = height;
                return true;
            }
            else {
                return base.TriggerEventFromMessage (message);
            }
        }

        #region IDisposable Support
        private bool disposedValue = false;

        protected virtual void Dispose (bool disposing)
        {
            if (!disposedValue) {
                if (disposing) {
                    // Disconnect any events we started
                    // Inform the page it's leaving
                    if (Platform.Page is IPageController pc) {
                        pc.SendDisappearing ();
                    }
                }
                disposedValue = true;
            }
        }

        public void Dispose ()
        {
            Dispose (true);
        }
        #endregion
    }
}