public void TokenTextFieldDeleteBackward(TokenTextField tokenTextField)
{
if (_canNotDeletedToken)
{
_canNotDeletedToken = false;
}
else
{
bool removeTokenButton = false;
foreach (TokenButton tokenButton in _tokens)
{
if (tokenButton._toggled)
{
RemoveTokenForTitle(tokenButton);
removeTokenButton = true;
break;
}
}
if (!removeTokenButton)
{
// Highlight last token button
if (_tokens.Count > 0)
{
TokenButton tokenButtonHighlight = _tokens[_tokens.Count - 1];
if (tokenButtonHighlight != null)
{
tokenButtonHighlight.SetToggled(true);
}
}
}
}
}
bool CheckTokenButtonNeedRemove(TokenButton tokenButton, string title)
{
bool removeTokenButton = false;
if ((tokenButton.Title(UIControlState.Normal) == title) && (tokenButton._toggled == true))
{
removeTokenButton = true;
}
return(removeTokenButton);
}
public void AddTokenWithTitle(string title, object representedObject)
{
string aTitle = title.Trim();
if (aTitle.Length > 0)
{
TokenButton tokenButton = TokenWithString(aTitle, representedObject);
_tokens.Add(tokenButton);
Delegate.DidAddToken(this, aTitle, representedObject);
SetNeedsLayout();
}
}
void Toggle(object sender, EventArgs ea)
{
foreach (TokenButton aTokenButton in _tokens)
{
aTokenButton.SetToggled(false);
}
TokenButton tokenButton = (TokenButton)sender;
tokenButton.SetToggled(true);
_textField.BecomeFirstResponder();
}
TokenButton TokenWithString(string title, object representedObject)
{
TokenButton tokenButton = TokenButton.CreateTokenButton(title, representedObject, this);
CGRect frame = tokenButton.Frame;
if (frame.Width > Frame.Width)
{
frame.Width = Frame.Width - (WIDTH_PADDING * 2);
}
tokenButton.Frame = frame;
tokenButton.TouchUpInside += Toggle;
return(tokenButton);
}
public void RemoveTokenForTitle(TokenButton tokenButtonToRemove)
{
if (tokenButtonToRemove != null)
{
if (tokenButtonToRemove.IsFirstResponder)
{
_textField.BecomeFirstResponder();
}
tokenButtonToRemove.RemoveFromSuperview();
_tokens.Remove(tokenButtonToRemove);
string tokenName = tokenButtonToRemove.Title(UIControlState.Normal);
// Delegate
Delegate.DidRemoveToken(this, tokenName, tokenButtonToRemove._representedObject);
}
}
public static TokenButton CreateTokenButton(string title, object representedObject, TokenField parentField)
{
TokenButton tokenButton = new TokenButton(UIButtonType.Custom);
tokenButton.SetTitleColor(UIColor.Blue, UIControlState.Normal);
tokenButton.BackgroundColor = UIColor.White;
tokenButton.SetTitle(title, UIControlState.Normal);
tokenButton.SizeToFit();
CGRect frame = tokenButton.Frame;
frame.Width += 20;
frame.Height = TokenField.DEFAULT_HEIGHT;
tokenButton.Frame = frame;
tokenButton.Layer.MasksToBounds = true;
tokenButton.Layer.CornerRadius = frame.Height / 2;
tokenButton._tokenField = parentField;
tokenButton._representedObject = representedObject;
return(tokenButton);
}