private void SetIsEnabled(bool value)
{
object penultimateValue = GetPenultimateValue();
if (penultimateValue.IsNullOrUnsetValue())
{
return;
}
IBindingMemberInfo member = BindingServiceProvider
.MemberProvider
.GetBindingMember(penultimateValue.GetType(), AttachedMemberConstants.Enabled, false, false);
if (member == null)
{
Tracer.Warn("The member {0} cannot be obtained on type {1}", AttachedMemberConstants.Enabled, penultimateValue.GetType());
}
else
{
member.SetSingleValue(penultimateValue, Empty.BooleanToObject(value));
if (_path.IsDebuggable)
{
DebugInfo($"Binding changed enabled state to '{value}' for source: '{penultimateValue}'");
}
}
}
private static object NullableBooleanToObject(bool?b)
{
if (b == null)
{
return(null);
}
return(Empty.BooleanToObject(b.Value));
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
#endif
{
var b = (bool?)value;
if (b == null)
{
return(null);
}
return(Empty.BooleanToObject(!b.Value));
}
private static void OnErrorsChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
var newValue = (ICollection <object>)args.NewValue;
sender.SetValue(HasErrorsProperty, Empty.BooleanToObject(newValue != null && newValue.Count != 0));
var errorsChanged = ErrorsChanged;
if (errorsChanged != null)
{
errorsChanged(sender, newValue);
}
}
internal static void SetDisableHierarchyListener(this ViewGroup viewGroup, bool value)
{
if (!viewGroup.IsAlive())
{
return;
}
var member = BindingServiceProvider.MemberProvider.GetBindingMember(viewGroup.GetType(), AttachedMembers.ViewGroup.DisableHierarchyListener, false, false);
if (member != null && member.CanWrite)
{
member.SetSingleValue(viewGroup, Empty.BooleanToObject(value));
}
}
private static void TrySetActivated(View view, bool value)
{
#if API17
view.Activated = value;
#else
if (view == null)
{
return;
}
var type = view.GetType();
var member = BindingServiceProvider.MemberProvider.GetBindingMember(type, "Activated", false, false);
if (member != null && member.CanWrite)
{
member.SetValue(view, new[] { Empty.BooleanToObject(value) });
}
#endif
}
static PlatformExtensions()
{
SubscribeBackPressedEventDelegate = (o, action) =>
{
try
{
var type = Type.GetType("Windows.Phone.UI.Input.HardwareButtons, Windows, ContentType=WindowsRuntime", false);
if (type == null)
{
return;
}
var eventInfo = type.GetEventEx("BackPressed", MemberFlags.Public | MemberFlags.Static);
var handleMethod = typeof(ReflectionExtensions.IWeakEventHandler <object>).GetMethodEx("Handle", MemberFlags.Public | MemberFlags.Instance);
if (eventInfo == null || handleMethod == null || eventInfo.AddMethod == null)
{
return;
}
object token = null;
var handler = ReflectionExtensions.CreateWeakEventHandler(o, action, (o1, h) =>
{
if (token != null && eventInfo.RemoveMethod != null)
{
eventInfo.RemoveMethod.Invoke(null, new[] { token });
}
});
var @delegate = handleMethod.CreateDelegate(eventInfo.EventHandlerType, handler);
token = eventInfo.AddMethod.Invoke(null, new object[] { @delegate });
}
catch (Exception e)
{
Tracer.Error(e.Flatten(false));
}
};
SetBackPressedHandledDelegate = (o, b) =>
{
if (BackArgsHandledProperty == null)
{
BackArgsHandledProperty = o.GetType().GetPropertyEx("Handled", MemberFlags.Public | MemberFlags.Instance);
}
if (BackArgsHandledProperty != null)
{
BackArgsHandledProperty.SetValue(o, Empty.BooleanToObject(b));
}
};
}
private void SetIsEnabled(bool value)
{
object penultimateValue = GetPenultimateValue();
if (penultimateValue == null || penultimateValue.IsUnsetValue())
{
return;
}
IBindingMemberInfo member = BindingServiceProvider
.MemberProvider
.GetBindingMember(penultimateValue.GetType(), AttachedMemberConstants.Enabled, false, false);
if (member == null)
{
Tracer.Warn("The member {0} cannot be obtained on type {1}",
AttachedMemberConstants.Enabled, penultimateValue.GetType());
}
else
{
member.SetSingleValue(penultimateValue, Empty.BooleanToObject(value));
}
}
internal static void SetBringToFront([NotNull] this Page page, bool value)
{
Should.NotBeNull(page, nameof(page));
ToolkitServiceProvider.AttachedValueProvider.SetValue(page, NavBringToFrontKey, Empty.BooleanToObject(value));
}
public void SetBoolProperty(string propertyName, string value)
{
SetStringProperty(propertyName, value, s => Empty.BooleanToObject(bool.Parse(s)));
}