static Style FindResource(ResourceKey key)
{
// don't crash if controls using GlobalStyles are instanciated in unit test mode
if (Application.Current == null)
return null;
else
return (Style)Application.Current.FindResource(key);
}
private static object GetKey(string name, ResourceKey resourceKey)
{
if (environmentColors == null)
{
return resourceKey;
}
return GetValue(environmentColors, name);
}
/// <summary>
/// Searches for a resource inside a ResourceDictionary.
/// </summary>
/// <param name="key">The original key.</param>
/// <param name="typeKey">The key cast to Type.</param>
/// <param name="resourceKey">The key cast to ResourceKey.</param>
/// <param name="isTraceEnabled">Tracing on/off.</param>
/// <param name="allowDeferredResourceReference">
/// If this flag is true the resource will not actually be inflated from Baml.
/// Instead we will return an instance of DeferredDictionaryReference which
/// can later be used to query the resource
/// </param>
/// <param name="mustReturnDeferredResourceReference">
/// If this method is true this method will always return a
/// DeferredThemeResourceReference instance which envelopes the underlying resource.
/// </param>
/// <param name="canCache">Whether callers can cache the value.</param>
/// <returns></returns>
private static object FindDictionaryResource(
object key,
Type typeKey,
ResourceKey resourceKey,
bool isTraceEnabled,
bool allowDeferredResourceReference,
bool mustReturnDeferredResourceReference,
out bool canCache)
{
// Thread safety handled by FindResourceInternal. Be sure to have locked _resourceCache.SyncRoot.
Debug.Assert(typeKey != null || resourceKey != null, "typeKey or resourceKey should be non-null");
canCache = true;
object resource = null;
Assembly assembly = (typeKey != null) ? typeKey.Assembly : resourceKey.Assembly;
if ((assembly == null) || IgnoreAssembly(assembly))
{
// Without an assembly, we can't figure out which dictionary to look at.
// Also, ignore some common assemblies we know to not contain resources.
return null;
}
ResourceDictionaries dictionaries = EnsureDictionarySlot(assembly);
ResourceDictionary dictionary = dictionaries.LoadThemedDictionary(isTraceEnabled);
if (dictionary != null)
{
resource = LookupResourceInDictionary(dictionary, key, allowDeferredResourceReference, mustReturnDeferredResourceReference, out canCache);
}
if (resource == null)
{
dictionary = dictionaries.LoadGenericDictionary(isTraceEnabled);
if (dictionary != null)
{
resource = LookupResourceInDictionary(dictionary, key, allowDeferredResourceReference, mustReturnDeferredResourceReference, out canCache);
}
}
if (resource != null)
{
// Resources coming out of the dictionary may need to be frozen
Freeze(resource);
}
return resource;
}
public ResourceKeyHighlightingBrush(ResourceKey key, string name)
{
}
private static ICommand CreateThemeCommand(ResourceKey key)
{
var theme = (ResourceDictionary)Application.Current.FindResource(key);
return new ApplyThemeCommand(theme);
}
private static void CoerceColor(DependencyObject d, object baseValue, ResourceKey brushKey,
IList<DependencyObject> colorBoundObjects)
{
if (d is ItemsControl && baseValue is Color)
{
var itemCtrl = (ItemsControl)d;
var res = itemCtrl.Resources;
if (!res.IsReadOnly)
{
var color = (Color)baseValue;
var brush = new SolidColorBrush(color);
res[brushKey] = brush;
}
colorBoundObjects.Add(d);
}
}
