internal void Apply(BindableObject target, bool fromStyle = false)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
if (Property == null)
{
return;
}
object originalValue = target.GetValue(Property);
if (!Equals(originalValue, Property.DefaultValue))
{
_originalValues.Remove(target);
_originalValues.Add(target, originalValue);
}
var dynamicResource = Value as DynamicResource;
var binding = Value as BindingBase;
if (binding != null)
{
target.SetBinding(Property, binding.Clone(), fromStyle);
}
else if (dynamicResource != null)
{
target.SetDynamicResource(Property, dynamicResource.Key, fromStyle);
}
else
{
target.SetValue(Property, Value, fromStyle);
}
}
internal override void SetUp(BindableObject bindable)
{
if (Binding != null)
{
bindable.SetBinding(_boundProperty, Binding.Clone());
}
}
public static void SetOnAppTheme <T>(this BindableObject self, BindableProperty targetProperty, T light, T dark, T defaultValue = default)
{
ExperimentalFlags.VerifyFlagEnabled(nameof(BindableObjectExtensions), ExperimentalFlags.AppThemeExperimental, nameof(BindableObjectExtensions), nameof(SetOnAppTheme));
var appTheme = new OnAppTheme <T> {
Light = light, Dark = dark, Default = defaultValue
};
self.SetBinding(targetProperty, appTheme);
}
static void BindProperty(BindableObject content, BindableProperty property, Type type)
{
if (content.IsSet(property) || content.GetIsBound(property))
{
// Don't override the property if user has already set it
return;
}
content.SetBinding(property,
new Binding(property.PropertyName,
source: new RelativeBindingSource(RelativeBindingSourceMode.FindAncestor, type)));
}
public static void SetBinding(this BindableObject self, BindableProperty targetProperty, string path, BindingMode mode = BindingMode.Default, IValueConverter converter = null,
string stringFormat = null)
{
if (self == null)
{
throw new ArgumentNullException("self");
}
if (targetProperty == null)
{
throw new ArgumentNullException("targetProperty");
}
var binding = new Binding(path, mode, converter, stringFormat: stringFormat);
self.SetBinding(targetProperty, binding);
}
public static void SetBinding <TSource>(this BindableObject self, BindableProperty targetProperty, Expression <Func <TSource, object> > sourceProperty, BindingMode mode = BindingMode.Default,
IValueConverter converter = null, string stringFormat = null)
{
if (self == null)
{
throw new ArgumentNullException("self");
}
if (targetProperty == null)
{
throw new ArgumentNullException("targetProperty");
}
if (sourceProperty == null)
{
throw new ArgumentNullException("sourceProperty");
}
Binding binding = Binding.Create(sourceProperty, mode, converter, stringFormat: stringFormat);
self.SetBinding(targetProperty, binding);
}
public static void SetOnAppTheme <T>(this BindableObject self, BindableProperty targetProperty, T light, T dark) => self.SetBinding(targetProperty, new AppThemeBinding {
Light = light, Dark = dark
});
