// Gets the input gesture text from the command text if it hasn't been explicitly specified
private static object CoerceToolTip(DependencyObject d, object value)
{
CommandButton button = (CommandButton)d;
if (button.IsValueUnsetAndNull(ToolTipProperty, value) && button.Command is IWpfRelayCommand uiCommand)
{
string tooltip = "";
if (!string.IsNullOrEmpty(uiCommand.Text))
{
tooltip += uiCommand.Text;
// Remove ellipses
if (tooltip.EndsWith("..."))
{
tooltip = tooltip.Substring(0, tooltip.Length - 3);
}
}
if (uiCommand.InputGesture != null)
{
if (!string.IsNullOrEmpty(tooltip))
{
tooltip += " ";
}
tooltip += $"({uiCommand.InputGesture.GetDisplayStringForCulture(CultureInfo.CurrentCulture)})";
}
return(tooltip);
}
return(value);
}
// Set the header to the command text if no header has been explicitly specified
/*private static object CoerceContent(DependencyObject d, object value) {
* CommandButton button = (CommandButton) d;
* RelayUICommand uiCommand;
*
* // If no header has been set, use the command's text
* if (button.IsValueUnsetAndNull(ContentProperty) && button.Command is RelayUICommand uiCommand) {
* value = uiCommand.Text;
* }
*
* return value;
* }*/
// Set the icon to the command text if no icon has been explicitly specified
private static object CoerceSource(DependencyObject d, object value)
{
CommandButton button = (CommandButton)d;
// If no icon has been set, use the command's icon
if (button.IsValueUnsetAndNull(SourceProperty, value) && button.Command is IWpfRelayCommand uiCommand)
{
value = uiCommand.Icon;
}
return(value);
}
private static void OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CommandButton button = (CommandButton)d;
if (e.OldValue is IWpfRelayCommand oldUICommand)
{
oldUICommand.PropertyChanged -= button.OnCommandPropertyChanged;
}
if (e.NewValue is IWpfRelayCommand newUICommand)
{
newUICommand.PropertyChanged += button.OnCommandPropertyChanged;
}
d.CoerceValue(SourceProperty);
//d.CoerceValue(ContentProperty);
d.CoerceValue(ToolTipProperty);
}