Replacement HTMLElement with Toolbar for MonoTouch.Dialog.cs

public class HtmlElement : Element {
		public string Url;
		static NSString hkey = new NSString ("HtmlElement");
		UIWebView web;
		UIToolbar toolbar;
		UIBarButtonItem forward;
		UIBarButtonItem back;
		UIBarButtonItem refresh;
		UIBarButtonItem actionbutton;
		
		public HtmlElement (string caption, string url) : base (caption)
		{
			Url = url;
		}
		
		public override UITableViewCell GetCell (UITableView tv)
		{
			var cell = tv.DequeueReusableCell (hkey);
			if (cell == null){
				cell = new UITableViewCell (UITableViewCellStyle.Default, hkey);
				cell.SelectionStyle = UITableViewCellSelectionStyle.Blue;
			}
			cell.Accessory = UITableViewCellAccessory.DisclosureIndicator;
			
			cell.TextLabel.Text = Caption;
			return cell;
		}

		static bool NetworkActivity {
			set {
				UIApplication.SharedApplication.NetworkActivityIndicatorVisible = value;
			}
		}
		
		// We use this class to dispose the web control when it is not
		// in use, as it could be a bit of a pig, and we do not want to
		// wait for the GC to kick-in.
		class WebViewController : UIViewController {
			HtmlElement container;
			
			public WebViewController (HtmlElement container) : base ()
			{
				this.container = container;
			}
			
			public override void ViewWillDisappear (bool animated)
			{
				base.ViewWillDisappear (animated);
				NetworkActivity = false;
				container.web.StopLoading ();
				container.web.Dispose ();
				container.web = null;
			}

		}
		
		public override void Selected (DialogViewController dvc, UITableView tableView, NSIndexPath path)
		{
			var vc = new WebViewController (this);
			toolbar = new UIToolbar(new RectangleF(0,0,UIScreen.MainScreen.ApplicationFrame.Width,40));
			toolbar.BarStyle = UIBarStyle.Black;
			forward = new UIBarButtonItem();
			forward.Image = UIImage.FromFile("arrow-right.png");
			back = new UIBarButtonItem();
			back.Image = UIImage.FromFile("arrow-left.png");
			refresh = new UIBarButtonItem(UIBarButtonSystemItem.Refresh);
			actionbutton = new UIBarButtonItem(UIBarButtonSystemItem.Action);
			
			var spacer10 = new UIBarButtonItem(UIBarButtonSystemItem.FixedSpace);
			spacer10.Width = 10;
			
			var spacer20 = new UIBarButtonItem(UIBarButtonSystemItem.FixedSpace);
			spacer20.Width = 20;
			
			var spacer160 = new UIBarButtonItem(UIBarButtonSystemItem.FixedSpace);
			spacer160.Width = 160;
			
			back.Enabled = false;
			forward.Enabled = false;
			var buttons = new UIBarButtonItem []{ spacer10, back, spacer20, forward, spacer160, refresh, spacer20, actionbutton };
			toolbar.SetItems(buttons, false);
			web = new UIWebView(new RectangleF(0,40,UIScreen.MainScreen.ApplicationFrame.Width, (UIScreen.MainScreen.ApplicationFrame.Height-40))){
				BackgroundColor = UIColor.White,
				ScalesPageToFit = true,
				AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight
			};
			
			forward.Clicked += delegate { 
				web.GoForward();
			};
			back.Clicked += delegate { 
				web.GoBack(); 
			};
			refresh.Clicked += delegate {
				web.Reload();
			};
			actionbutton.Clicked += delegate {
				  
				UIActionSheet actionSheet = new UIActionSheet("", null, null, null, "Open In Safari", "Email to a Friend", "Cancel");
				actionSheet.CancelButtonIndex = 2;
				
				actionSheet.Clicked += delegate(object sender, UIButtonEventArgs e) {
					
					if (e.ButtonIndex == 0)
					{
						UIApplication.SharedApplication.OpenUrl (web.Request.Url);
					}
					else if (e.ButtonIndex == 1)
					{
						MFMailComposeViewController mailvc = new MFMailComposeViewController();
						mailvc.Finished += delegate {
							vc.DismissModalViewControllerAnimated(true);
							
						};
						
						mailvc.SetMessageBody("<br />\r\n<br />\r\nShared from The Connectors iPhone App <br />\r\n<a href=\"http://TheConnectorsApp.com\">http://TheConnectorsApp.com</a>", true);
						vc.PresentModalViewController(mailvc,true);
					}
				};
				actionSheet.ShowInView(vc.View);
				//
			};
			web.LoadStarted += delegate {
				NetworkActivity = true;
			};
			web.LoadFinished += delegate {
				back.Enabled = web.CanGoBack;
				forward.Enabled = web.CanGoForward;
				NetworkActivity = false;
			};
			web.LoadError += (webview, args) => {
				NetworkActivity = false;
				if (web != null)
					web.LoadHtmlString (String.Format ("<html><center><font size=+5 color='red'>An error occurred:<br>{0}</font></center></html>", args.Error.LocalizedDescription), null);
			};
			vc.NavigationItem.Title = Caption;
			vc.View.AddSubview(toolbar);
			vc.View.AddSubview (web);
			
			dvc.ActivateController (vc);
			web.LoadRequest (NSUrlRequest.FromUrl (new NSUrl (Url)));
		}
	}