/// <summary>
/// Adds items to the menu.
/// </summary>
/// <param name="itemsToAdd">Items to add.</param>
public void AddItems(params KSStapleMenuItem[] itemsToAdd)
{
Debug.Assert(itemsToAdd != null, "Provide valid items for initialization!");
if (this.items == null)
{
this.items = new ObservableCollection <KSStapleMenuItem> ();
}
this.items.CollectionChanged -= this.HandleItemsCollectionChanged;
for (int i = 0; i < itemsToAdd.Length; ++i)
{
KSStapleMenuItem currentItem = itemsToAdd[i];
this.items.Add(currentItem);
currentItem.SizeElements(this.ItemSize);
currentItem.OnLongPress += this.HandleItemLongPress;
currentItem.OnSelect += this.HandleItemSelect;
var containerView = new KSMenuItemHostView(this, currentItem.Id);
// Make container wide enough to hold all items.
containerView.Frame = new RectangleF(0, 0, this.ItemSize.Width * currentItem.NumberOfElements, this.ItemSize.Height);
// Add element views to container view.
for (int elementIndex = 0; elementIndex < currentItem.NumberOfElements; elementIndex++)
{
var itemView = currentItem.GetViewForIndex(elementIndex);
containerView.AddSubview(itemView);
if (this.Mode == STAPLEMENU_MODE.Right)
{
itemView.Center = new PointF(containerView.Bounds.Width - itemView.Bounds.Width / 2f, containerView.Bounds.Height / 2f);
}
else
{
itemView.Center = new PointF(itemView.Bounds.Width / 2f, containerView.Bounds.Height / 2f);
}
}
this.AddSubview(containerView);
}
this.items.CollectionChanged += this.HandleItemsCollectionChanged;
}
/// <summary>
/// Expands an item. This automatically collapses a previously opened item.
/// </summary>
/// <param name="id">Identifier of the item to expand.</param>
/// <param name="animated">If set to <c>true</c>, animate.</param>
public void ExpandItem(string id, bool animated)
{
if (string.Compare(id, this.ExpandedItemId, StringComparison.OrdinalIgnoreCase) == 0)
{
return;
}
if (this.timer != null)
{
this.timer.Invalidate();
this.timer = null;
}
// Collapse current open item before expanding another one.
this.Collapse(animated);
KSMenuItemHostView hostView = null;
foreach (KSMenuItemHostView subview in this.Subviews)
{
if (string.Compare(id, subview.ItemId, StringComparison.OrdinalIgnoreCase) == 0)
{
hostView = subview;
break;
}
}
if (hostView == null)
{
return;
}
;
this.ExpandedItemId = id;
if (animated)
{
UIView.Animate(ANIMATION_EXPAND_SECONDS, 0f, UIViewAnimationOptions.CurveEaseOut, delegate
{
hostView.ExpandSubElements();
},
delegate
{
float newWidth = hostView.Bounds.Width;
if (this.Mode == STAPLEMENU_MODE.Right)
{
this.Frame = new RectangleF(this.Superview.Bounds.Width - newWidth, this.Frame.Y, newWidth, this.Bounds.Height);
}
else
{
this.Frame = new RectangleF(0, this.Frame.X, newWidth, this.Bounds.Height);
}
});
}
else
{
hostView.ExpandSubElements();
float newWidth = hostView.Bounds.Width;
if (this.Mode == STAPLEMENU_MODE.Right)
{
this.Frame = new RectangleF(this.Superview.Bounds.Width - newWidth, this.Frame.Y, newWidth, this.Bounds.Height);
}
else
{
this.Frame = new RectangleF(0, this.Frame.X, newWidth, this.Bounds.Height);
}
}
// Create a timer that collapses the expanded item after a while.
this.timer = NSTimer.CreateTimer(AUTO_CLOSE_TIMEOUT_SECS, () => this.Collapse(animated));
NSRunLoop.Current.AddTimer(this.timer, NSRunLoopMode.Default);
}
/// <summary>
/// Collapses the current expanded item (if any).
/// </summary>
public void Collapse(bool animated)
{
if (this.timer != null)
{
this.timer.Invalidate();
this.timer = null;
}
if (this.ExpandedItemId == null)
{
return;
}
KSMenuItemHostView hostView = null;
foreach (KSMenuItemHostView subview in this.Subviews)
{
if (string.Compare(this.ExpandedItemId, subview.ItemId, StringComparison.OrdinalIgnoreCase) == 0)
{
hostView = subview;
break;
}
}
this.ExpandedItemId = null;
if (hostView == null)
{
return;
}
;
if (animated)
{
UIView.Animate(ANIMATION_COLLAPSE_SECONDS, 0f, UIViewAnimationOptions.CurveEaseIn, delegate
{
hostView.CollapseSubElements();
},
delegate
{
float newWidth = this.ItemSize.Width;
if (this.Mode == STAPLEMENU_MODE.Right)
{
this.Frame = new RectangleF(this.Superview.Bounds.Width - newWidth, this.Frame.Y, newWidth, this.Bounds.Height);
}
else
{
this.Frame = new RectangleF(0, this.Frame.X, newWidth, this.Bounds.Height);
}
});
}
else
{
hostView.CollapseSubElements();
float newWidth = this.ItemSize.Width;
if (this.Mode == STAPLEMENU_MODE.Right)
{
this.Frame = new RectangleF(this.Superview.Bounds.Width - newWidth, this.Frame.Y, newWidth, this.Bounds.Height);
}
else
{
this.Frame = new RectangleF(0, this.Frame.X, newWidth, this.Bounds.Height);
}
}
}
/// <summary>
/// Adds items to the menu.
/// </summary>
/// <param name="itemsToAdd">Items to add.</param>
public void AddItems(params KSStapleMenuItem[] itemsToAdd)
{
Debug.Assert (itemsToAdd != null, "Provide valid items for initialization!");
if (this.items == null)
{
this.items = new ObservableCollection<KSStapleMenuItem> ();
}
this.items.CollectionChanged -= this.HandleItemsCollectionChanged;
for(int i = 0; i < itemsToAdd.Length; ++i)
{
KSStapleMenuItem currentItem = itemsToAdd[i];
this.items.Add (currentItem);
currentItem.SizeElements(this.ItemSize);
currentItem.OnLongPress += this.HandleItemLongPress;
currentItem.OnSelect += this.HandleItemSelect;
var containerView = new KSMenuItemHostView(this, currentItem.Id);
// Make container wide enough to hold all items.
containerView.Frame = new RectangleF(0, 0, this.ItemSize.Width * currentItem.NumberOfElements, this.ItemSize.Height);
// Add element views to container view.
for(int elementIndex = 0; elementIndex < currentItem.NumberOfElements; elementIndex++)
{
var itemView = currentItem.GetViewForIndex(elementIndex);
containerView.AddSubview(itemView);
if(this.Mode == STAPLEMENU_MODE.Right)
{
itemView.Center = new PointF(containerView.Bounds.Width - itemView.Bounds.Width /2f, containerView.Bounds.Height / 2f);
}
else
{
itemView.Center = new PointF(itemView.Bounds.Width /2f, containerView.Bounds.Height / 2f);
}
}
this.AddSubview(containerView);
}
this.items.CollectionChanged += this.HandleItemsCollectionChanged;
}
