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using System.Linq;
using System.Drawing;
#if __UNIFIED__
using UIKit;
#else
using MonoTouch.UIKit;
#endif
namespace Xamarin.Forms.Platform.iOS
{
public class ToolbarRenderer : ViewRenderer
{
protected override void Dispose(bool disposing)
{
if (disposing)
{
((Toolbar)Element).ItemAdded -= OnItemAdded;
((Toolbar)Element).ItemRemoved -= OnItemRemoved;
if (((UIToolbar)Control).Items != null)
{
foreach (var item in ((UIToolbar)Control).Items)
item.Dispose();
}
}
base.Dispose(disposing);
}
protected override void OnElementChanged(ElementChangedEventArgs<View> e)
{
base.OnElementChanged(e);
SetNativeControl(new UIToolbar(RectangleF.Empty));
UpdateItems(false);
((Toolbar)Element).ItemAdded += OnItemAdded;
((Toolbar)Element).ItemRemoved += OnItemRemoved;
}
void OnItemAdded(object sender, ToolbarItemEventArgs eventArg)
{
UpdateItems(true);
}
void OnItemRemoved(object sender, ToolbarItemEventArgs eventArg)
{
UpdateItems(true);
}
void UpdateItems(bool animated)
{
if (((UIToolbar)Control).Items != null)
{
for (var i = 0; i < ((UIToolbar)Control).Items.Length; i++)
((UIToolbar)Control).Items[i].Dispose();
}
var items = new UIBarButtonItem[((Toolbar)Element).Items.Count];
for (var i = 0; i < ((Toolbar)Element).Items.Count; i++)
items[i] = ((Toolbar)Element).Items[i].ToUIBarButtonItem();
((UIToolbar)Control).SetItems(items, animated);
}
}
}
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