/// <summary>
/// Updates the value of the <see cref="Gesture"/> property based on the current property values of this binding.
/// </summary>
private void UpdateGestureFromBinding()
{
if (updating)
{
return;
}
updating = true;
Gesture = new MouseGesture(MouseAction, Modifiers);
updating = false;
}
/// <summary>
/// Converts the string representation of a gesture into an instance of the <see cref="MouseGesture"/> structure.
/// A return value indicates whether the conversion succeeded.
/// </summary>
/// <param name="str">A string containing a gesture to convert.</param>
/// <param name="provider">A format provider that provides culture-specific formatting information.</param>
/// <param name="gesture">A variable to populate with the converted value.</param>
/// <returns><see langword="true"/> if <paramref name="str"/> was converted successfully; otherwise, <see langword="false"/>.</returns>
public static Boolean TryParse(String str, IFormatProvider provider, out MouseGesture gesture)
{
Contract.Require(str, nameof(str));
gesture = null;
if (String.IsNullOrWhiteSpace(str))
{
return(false);
}
var mouseAction = MouseAction.None;
var modifiers = ModifierKeys.None;
var parts = str.Split('+').Select(x => x.Trim()).ToArray();
for (int i = 0; i < parts.Length; i++)
{
var isModifier = (i + 1 < parts.Length);
if (isModifier)
{
var modFromStr = GetModifierKeyFromString(parts[i]);
if (modFromStr == null || (modifiers & modFromStr.GetValueOrDefault()) != 0)
{
return(false);
}
modifiers |= modFromStr.GetValueOrDefault();
}
else
{
if (!Enum.TryParse(parts[i], true, out mouseAction))
{
return(false);
}
}
}
gesture = new MouseGesture(mouseAction, modifiers);
return(true);
}
/// <summary>
/// Converts the string representation of a gesture into an instance of the <see cref="MouseGesture"/> structure.
/// A return value indicates whether the conversion succeeded.
/// </summary>
/// <param name="str">A string containing a gesture to convert.</param>
/// <param name="gesture">A variable to populate with the converted value.</param>
/// <returns><see langword="true"/> if <paramref name="str"/> was converted successfully; otherwise, <see langword="false"/>.</returns>
public static Boolean TryParse(String str, out MouseGesture gesture)
{
return(TryParse(str, null, out gesture));
}
/// <summary>
/// Initializes a new instance of the <see cref="MouseBinding"/> class.
/// </summary>
/// <param name="command">The command associated with the specified gesture.</param>
/// <param name="gesture">The gesture associated with the specified command.</param>
public MouseBinding(ICommand command, MouseGesture gesture)
: base(command, gesture)
{
}
