// Token: 0x06000C6A RID: 3178 RVA: 0x0002E850 File Offset: 0x0002CA50
private static void InvalidateResourceReferences(DependencyObject d, ResourcesChangeInfo info)
{
LocalValueEnumerator localValueEnumerator = d.GetLocalValueEnumerator();
int count = localValueEnumerator.Count;
if (count > 0)
{
ResourceReferenceExpression[] array = new ResourceReferenceExpression[count];
int num = 0;
while (localValueEnumerator.MoveNext())
{
LocalValueEntry localValueEntry = localValueEnumerator.Current;
ResourceReferenceExpression resourceReferenceExpression = localValueEntry.Value as ResourceReferenceExpression;
if (resourceReferenceExpression != null && info.Contains(resourceReferenceExpression.ResourceKey, false))
{
array[num] = resourceReferenceExpression;
num++;
}
}
ResourcesChangedEventArgs e = new ResourcesChangedEventArgs(info);
for (int i = 0; i < num; i++)
{
array[i].InvalidateExpressionValue(d, e);
}
}
}
/// <summary>
/// Invalidates all properties that reference a resource.
/// NOTE: The return value for this method indicates whether or not a ResourceReference
/// property was found on the given object. This is to take care of the special case when
/// programmatically changing a ResourceReference property value does not reflect on the
/// bit stored on FrameworkElement or FrameworkContentElement that indicates whether
/// the current instance has ResourceReference values set on it. This current operation
/// is a point of synchronization for this flag.
/// </summary>
/// <remarks>
/// This methods is called when one of the following operations occurred.
/// 1) A tree change
/// 2) A resource dictionary change
/// 3) A modification to a single entry in a dictionary
/// </remarks>
private static void InvalidateResourceReferences(
DependencyObject d,
ResourcesChangeInfo info)
{
Debug.Assert(d != null, "Must have non-null current node");
// Find properties that have resource reference value
LocalValueEnumerator localValues = d.GetLocalValueEnumerator();
int localValuesCount = localValues.Count;
if (localValuesCount > 0)
{
// Resource reference invalidation involves two passes - first to
// pick out what we need to invalidate, and the second to do the
// actual invalidation. This is needed because LocalValueEnumerator
// will halt if any local values have changed, which can happen
// depending on what people are doing in their OnPropertyChanged
// callback.
// The following array is used to track the ResourceReferenceExpressions that we find
ResourceReferenceExpression[] resources = new ResourceReferenceExpression[localValuesCount];
int invalidationCount = 0;
// Pass #1 - find what needs invalidation
while (localValues.MoveNext())
{
// Is this a resource reference?
ResourceReferenceExpression resource = localValues.Current.Value as ResourceReferenceExpression;
if (resource != null)
{
// Record this property if it is referring
// to a resource that is being changed
if (info.Contains(resource.ResourceKey, false /*isImplicitStyleKey*/))
{
resources[invalidationCount] = resource;
invalidationCount++;
}
}
}
ResourcesChangedEventArgs args = new ResourcesChangedEventArgs(info);
// Pass #2 - actually make the invalidation calls, now that we're
// outside the LocalValueEnumerator.
for (int i = 0; i < invalidationCount; i++)
{
// Let the resource reference throw away its cache
// and invalidate the property in which it's held
// re-evaluate expression
resources[i].InvalidateExpressionValue(d, args);
}
}
}
/// <summary>
/// Process a resource change for the given DependencyObject.
/// Return true if the DO has resource references.
/// </summary>
internal static void OnResourcesChanged(
DependencyObject d,
ResourcesChangeInfo info,
bool raiseResourceChangedEvent)
{
Debug.Assert(d != null, "Must have non-null current node");
bool containsTypeOfKey = info.Contains(d.DependencyObjectType.SystemType, true /*isImplicitStyleKey*/);
bool isSystemResourcesChange = info.IsThemeChange;
bool isStyleResourcesChange = info.IsStyleResourcesChange;
bool isTemplateResourcesChange = info.IsTemplateResourcesChange;
bool isContainer = (info.Container == d);
FrameworkObject fo = new FrameworkObject(d);
// If a resource dictionary changed above this node then we need to
// synchronize the ShouldLookupImplicitStyles flag with respect to
// our parent here.
if (info.IsResourceAddOperation || info.IsCatastrophicDictionaryChange)
{
fo.SetShouldLookupImplicitStyles();
}
// Invalidate implicit and explicit resource
// references on current instance
if (fo.IsFE)
{
// If this is a FrameworkElement
FrameworkElement fe = fo.FE;
fe.HasStyleChanged = false; // detect style changes that arise from work done here
fe.HasStyleInvalidated = false;
fe.HasTemplateChanged = false; // detect template changes that arise from work done here
if (fe.HasResourceReference)
{
// Invalidate explicit ResourceReference properties on the current instance.
// If the Style property comes from an implicit resource reference that
// will be invalidated too.
InvalidateResourceReferences(fe, info);
// There is no need to invalidate the resources references on the
// container object if this call is a result of a style/template
// change. This is because the style/template change would have
// already invalidated all the container dependents and all the
// resources references on the container would have been a part of it.
if ((!isStyleResourcesChange && !isTemplateResourcesChange ) || !isContainer)
{
InvalidateStyleAndReferences(d, info, containsTypeOfKey);
}
}
else if (containsTypeOfKey &&
(fe.HasImplicitStyleFromResources || fe.Style == FrameworkElement.StyleProperty.GetMetadata(fe.DependencyObjectType).DefaultValue))
{
// If The Style property on the given instance has been
// fetched by an implicit resource lookup then
// it needs to be invalidated. Also we need to do this
// invalidation only if the dictionary/resources that is
// changing matches the implicit key used for the resource lookup.
// The StyleProperty does not need to be invalidated if this
// call is the result of a style change
if (!isStyleResourcesChange || !isContainer)
{
fe.UpdateStyleProperty();
}
}
// If there has been a Theme change then
// invalidate the ThemeStyleProperty
if (isSystemResourcesChange)
{
fe.UpdateThemeStyleProperty();
}
// Raise the ResourcesChanged Event so that ResourceReferenceExpressions
// on non-[FE/FCE] (example Freezables) listening for this can then update
// their values
if (raiseResourceChangedEvent && fe.PotentiallyHasMentees)
{
fe.RaiseClrEvent(FrameworkElement.ResourcesChangedKey, new ResourcesChangedEventArgs(info));
}
}
else
{
// If this is a FrameworkContentElement
FrameworkContentElement fce = fo.FCE;
fce.HasStyleChanged = false; // detect style changes that arise from work done here
fce.HasStyleInvalidated = false;
if (fce.HasResourceReference)
{
// Invalidate explicit ResourceReference properties on the current instance.
// If the Style property comes from an implicit resource reference that
// will be invalidated too.
InvalidateResourceReferences(fce, info);
// There is no need to invalidate the resources references on the
// container object if this call is a result of a style/template
// change. This is because the style/template change would have
// already invalidated all the container dependents and all the
// resources references on the container would have been a part of it.
if ((!isStyleResourcesChange && !isTemplateResourcesChange ) || !isContainer)
{
InvalidateStyleAndReferences(d, info, containsTypeOfKey);
}
}
else if (containsTypeOfKey &&
(fce.HasImplicitStyleFromResources || fce.Style == FrameworkContentElement.StyleProperty.GetMetadata(fce.DependencyObjectType).DefaultValue))
{
// If The Style property on the given instance has been
// fetched by an implicit resource lookup then
// it needs to be invalidated. Also we need to do this
// invalidation only if the dictionary/resources that is
// changing matches the implicit key used for the resource lookup.
// The StyleProperty does not need to be invalidated if this
// call is the result of a style change
if (!isStyleResourcesChange || !isContainer)
{
fce.UpdateStyleProperty();
}
}
// If there has been a Theme change then
// invalidate the ThemeStyleProperty
if (isSystemResourcesChange)
{
fce.UpdateThemeStyleProperty();
}
// Raise the ResourcesChanged Event so that ResourceReferenceExpressions
// on non-[FE/FCE] (example Freezables) listening for this can then update
// their values
if (raiseResourceChangedEvent && fce.PotentiallyHasMentees)
{
fce.RaiseClrEvent(FrameworkElement.ResourcesChangedKey, new ResourcesChangedEventArgs(info));
}
}
}
// Token: 0x06000C69 RID: 3177 RVA: 0x0002E674 File Offset: 0x0002C874
internal static void OnResourcesChanged(DependencyObject d, ResourcesChangeInfo info, bool raiseResourceChangedEvent)
{
bool flag = info.Contains(d.DependencyObjectType.SystemType, true);
bool isThemeChange = info.IsThemeChange;
bool isStyleResourcesChange = info.IsStyleResourcesChange;
bool isTemplateResourcesChange = info.IsTemplateResourcesChange;
bool flag2 = info.Container == d;
FrameworkObject frameworkObject = new FrameworkObject(d);
if (info.IsResourceAddOperation || info.IsCatastrophicDictionaryChange)
{
frameworkObject.SetShouldLookupImplicitStyles();
}
if (frameworkObject.IsFE)
{
FrameworkElement fe = frameworkObject.FE;
fe.HasStyleChanged = false;
fe.HasStyleInvalidated = false;
fe.HasTemplateChanged = false;
if (info.IsImplicitDataTemplateChange)
{
ContentPresenter contentPresenter = fe as ContentPresenter;
if (contentPresenter != null)
{
contentPresenter.ReevaluateTemplate();
}
}
if (fe.HasResourceReference)
{
TreeWalkHelper.InvalidateResourceReferences(fe, info);
if ((!isStyleResourcesChange && !isTemplateResourcesChange) || !flag2)
{
TreeWalkHelper.InvalidateStyleAndReferences(d, info, flag);
}
}
else if (flag && (fe.HasImplicitStyleFromResources || fe.Style == FrameworkElement.StyleProperty.GetMetadata(fe.DependencyObjectType).DefaultValue) && (!isStyleResourcesChange || !flag2))
{
fe.UpdateStyleProperty();
}
if (isThemeChange)
{
fe.UpdateThemeStyleProperty();
}
if (raiseResourceChangedEvent && fe.PotentiallyHasMentees)
{
fe.RaiseClrEvent(FrameworkElement.ResourcesChangedKey, new ResourcesChangedEventArgs(info));
return;
}
}
else
{
FrameworkContentElement fce = frameworkObject.FCE;
fce.HasStyleChanged = false;
fce.HasStyleInvalidated = false;
if (fce.HasResourceReference)
{
TreeWalkHelper.InvalidateResourceReferences(fce, info);
if ((!isStyleResourcesChange && !isTemplateResourcesChange) || !flag2)
{
TreeWalkHelper.InvalidateStyleAndReferences(d, info, flag);
}
}
else if (flag && (fce.HasImplicitStyleFromResources || fce.Style == FrameworkContentElement.StyleProperty.GetMetadata(fce.DependencyObjectType).DefaultValue) && (!isStyleResourcesChange || !flag2))
{
fce.UpdateStyleProperty();
}
if (isThemeChange)
{
fce.UpdateThemeStyleProperty();
}
if (raiseResourceChangedEvent && fce.PotentiallyHasMentees)
{
fce.RaiseClrEvent(FrameworkElement.ResourcesChangedKey, new ResourcesChangedEventArgs(info));
}
}
}
//
// This method
// 1. Invalidates all the resource references set on a template for a given child.
// 2. Returns true if any were found
//
internal static void InvalidateResourceDependentsForChild(
DependencyObject container,
DependencyObject child,
int childIndex,
ResourcesChangeInfo info,
FrameworkTemplate parentTemplate)
{
FrugalStructList<ChildPropertyDependent> resourceDependents = parentTemplate.ResourceDependents;
int count = resourceDependents.Count;
// Invalidate all properties on the given child that
// are being driven via a resource reference in a template
for (int i = 0; i < count; i++)
{
if (resourceDependents[i].ChildIndex == childIndex &&
info.Contains(resourceDependents[i].Name, false /*isImplicitStyleKey*/))
{
DependencyProperty dp = resourceDependents[i].Property;
// Update property on child
child.InvalidateProperty(dp);
// skip remaining dependents for the same property - we only
// need to invalidate once. The list is sorted, so we just need
// to skip until we find a new property.
int dpIndex = dp.GlobalIndex;
while (++i < resourceDependents.Count)
{
if (resourceDependents[i].ChildIndex != childIndex ||
resourceDependents[i].Property.GlobalIndex != dpIndex)
{
break;
}
}
--i; // back up to let the for-loop do its normal increment
}
}
}
//
// This method
// 1. Invalidates all the resource references set on a style or a template.
//
// Note: In the case that the visualtree was not generated from the particular
// style in question we will skip past those resource references that haven't
// been set on the container. This condition is described by the
// invalidateVisualTreeToo flag being false.
//
internal static void InvalidateResourceDependents(
DependencyObject container,
ResourcesChangeInfo info,
ref FrugalStructList<ChildPropertyDependent> resourceDependents,
bool invalidateVisualTreeToo)
{
List<DependencyObject> styledChildren = TemplatedFeChildrenField.GetValue(container);
// Invalidate all properties on this container and its children that
// are being driven via a resource reference in a style
for (int i = 0; i < resourceDependents.Count; i++)
{
// Invalidate property
// 1. If nothing is known about the data or
// 2. If the data tells us the key in the dictionary that was modified and this property is refering to it or
// 3. If it tells us info about the changed dictionaries and this property was refering to one of their entries
// 4. If this a theme change
if (info.Contains(resourceDependents[i].Name, false /*isImplicitStyleKey*/))
{
DependencyObject child = null;
DependencyProperty invalidProperty = resourceDependents[i].Property;
int childIndex = resourceDependents[i].ChildIndex;
if (childIndex == 0)
{
// Index '0' means 'self' (container)
child = container;
}
else if (invalidateVisualTreeToo)
{
Debug.Assert(styledChildren != null, "Should reach here only if the template tree has already been created");
// Locate child to invalidate
child = GetChild(styledChildren, childIndex);
if (child == null)
{
throw new InvalidOperationException(SR.Get(SRID.ChildTemplateInstanceDoesNotExist));
}
}
if (child != null)
{
// Invalidate property on child
child.InvalidateProperty(invalidProperty);
// skip remaining dependents for the same property - we only
// need to invalidate once. The list is sorted, so we just need
// to skip until we find a new property.
int dpIndex = invalidProperty.GlobalIndex;
while (++i < resourceDependents.Count)
{
if (resourceDependents[i].ChildIndex != childIndex ||
resourceDependents[i].Property.GlobalIndex != dpIndex)
{
break;
}
}
--i; // back up to let the for-loop do its normal increment
}
}
}
}