/// <summary>
/// Returns the localized value.
/// </summary>
/// <returns></returns>
object ProduceValue(Type targetPropertyType, bool dataBound, object dataBoundValueOrValues)
{
Debug.Assert(targetPropertyType != null);
var rootObject = this.RootObject;
if (rootObject == null)
{
// The object has been GC
return(TypeUtils.GetDefaultValue(targetPropertyType));
}
var dispatcher = rootObject.Dispatcher;
var cultureInfo = LocalizationScope.GetCulture(rootObject) ?? dispatcher.Thread.CurrentCulture;
var uiCultureInfo = LocalizationScope.GetUICulture(rootObject) ?? dispatcher.Thread.CurrentUICulture;
var resourceManager = ResourceManagerHelper.GetResourceManager(rootObject);
return(base.ProduceValue(
null,
targetPropertyType,
resourceManager,
cultureInfo,
uiCultureInfo,
dataBound,
dataBoundValueOrValues
));
}
/// <summary>
/// Gets the UI culture set for the object.
/// </summary>
/// <returns>
/// A <see cref="CultureInfo"/> or null if no explicit value is set for the object.
/// </returns>
public CultureInfo GetUICulture()
{
var obj = Object;
if (obj == null)
{
return(null);
}
CultureInfo result;
if (obj.CheckAccess())
{
result = LocalizationScope.GetUICulture(obj);
}
else
{
result = (CultureInfo)obj.Dispatcher.Invoke(new DispatcherOperationCallback(x => LocalizationScope.GetUICulture((DependencyObject)x)), obj);
}
if (result == null)
{
// Get the culture of the UI thread in case the current thread is different
result = obj.Dispatcher.Thread.CurrentUICulture;
}
return(result);
}
/// <summary>
/// Gets the <see cref="ResourceManager"/> set for the object.
/// </summary>
/// <returns>
/// A <see cref="ResourceManager"/> or null if no explicit value is set for the object.
/// </returns>
public ResourceManager GetResourceManager()
{
var obj = Object;
if (obj == null)
{
return(null);
}
ResourceManager result;
if (obj.CheckAccess())
{
result = LocalizationScope.GetResourceManager(obj);
}
else
{
result = (ResourceManager)obj.Dispatcher.Invoke(new DispatcherOperationCallback(x => LocalizationScope.GetResourceManager((DependencyObject)x)), obj);
}
if (result == null)
{
result = LocalizationManager.DefaultResourceManager;
}
return(result);
}
object ProduceValue(bool dataBound, object dataBoundValueOrValues)
{
var targetObject = this.TargetObject;
if (targetObject == null)
{
// The object has been GC
return(TargetProperty.DefaultValue);
}
var dispatcher = targetObject.Dispatcher;
var culture = LocalizationScope.GetCulture(targetObject) ?? dispatcher.Thread.CurrentCulture;
var uiCulture = LocalizationScope.GetUICulture(targetObject) ?? dispatcher.Thread.CurrentUICulture;
var resourceManager = ResourceManagerHelper.GetResourceManager(targetObject);
return(base.ProduceValue(
TargetProperty,
TargetProperty.PropertyType,
resourceManager,
culture,
uiCulture,
dataBound,
dataBoundValueOrValues
));
}
/// <summary>
/// Returns the specified resource based on the current culture of the specified object.
/// </summary>
/// <param name="obj"></param>
/// <param name="resourceKey"></param>
/// <returns></returns>
/// <remarks>
/// <para>
/// This method respects the resources and culture set via the <see cref="LocalizationScope.ResourceManager"/>
/// and <see cref="LocalizationScope.UICulture"/> attached properties when retrieving the resource.
/// </para>
/// <para>
/// This method is thread-safe.
/// </para>
/// </remarks>
public static object GetResource(this DependencyObject obj, string resourceKey)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
var dispatcher = obj.Dispatcher;
var uiCultureInfo = LocalizationScope.GetUICulture(obj) ?? dispatcher.Thread.CurrentUICulture;
var resourceManager = ResourceManagerHelper.GetResourceManager(obj);
if (resourceManager == null)
{
return(null);
}
else
{
return(resourceManager.GetObject(resourceKey, uiCultureInfo));
}
}
/// <summary>
/// Determines the <see cref="ResourceManager"/> to use for the specified <see cref="DependencyObject"/>.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
/// <exception cref="InvalidOperationException">The method is not called on the UI thread of the specified <see cref="DependencyObject"/>.</exception>
public static ResourceManager GetResourceManager(DependencyObject obj)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
obj.VerifyAccess();
var resourceManager = LocalizationScope.GetResourceManager(obj);
if (resourceManager == null)
{
if (DesignerProperties.GetIsInDesignMode(obj))
{
// Window.GetWindow returns "null" at design time
return(GetDefaultResourceManagerForAssembly(DesignTimeHelper.GetDesignTimeAssembly()));
}
else
{
var window = Window.GetWindow(obj);
if (window != null)
{
var localValue = window.ReadLocalValue(DefaultResourceManagerProperty);
if (localValue == DependencyProperty.UnsetValue)
{
resourceManager = GetDefaultResourceManagerForAssembly(window.GetType().Assembly);
window.SetValue(DefaultResourceManagerProperty, resourceManager);
}
else
{
resourceManager = localValue as ResourceManager;
}
}
}
}
return(resourceManager);
}
