// Token: 0x06002260 RID: 8800 RVA: 0x000AACD8 File Offset: 0x000A8ED8
public virtual object GetService(Type serviceType)
{
if (serviceType == typeof(IUriContext))
{
return(this._parserContext);
}
if (serviceType == typeof(string))
{
return(this._attribStringValue);
}
ProvideValueServiceProvider provideValueProvider = this._parserContext.ProvideValueProvider;
return(provideValueProvider.GetService(serviceType));
}
//+----------------------------------------------------------------------------------------------------------------
//
// SetTemplateParentValues
//
// This method takes the "template parent values" (those that look like local values in the template), which
// are ordinarily shared, and sets them as local values on the FE/FCE that was just created. This is used
// during serialization.
//
//+----------------------------------------------------------------------------------------------------------------
internal static void SetTemplateParentValues(
string name,
object element,
FrameworkTemplate frameworkTemplate,
ref ProvideValueServiceProvider provideValueServiceProvider)
{
int childIndex;
// Loop through the shared values, and set them onto the element.
FrugalStructList<ChildRecord> childRecordFromChildIndex;
HybridDictionary childIndexFromChildName;
// Seal the template, and get the name->index and index->ChildRecord mappings
if (!frameworkTemplate.IsSealed)
{
frameworkTemplate.Seal();
}
childIndexFromChildName = frameworkTemplate.ChildIndexFromChildName;
childRecordFromChildIndex = frameworkTemplate.ChildRecordFromChildIndex;
// Calculate the child index
childIndex = StyleHelper.QueryChildIndexFromChildName(name, childIndexFromChildName);
// Do we have a ChildRecord for this index (i.e., there's some property set on it)?
if (childIndex < childRecordFromChildIndex.Count)
{
// Yes, get the record.
ChildRecord child = (ChildRecord)childRecordFromChildIndex[childIndex];
// Loop through the properties which are in some way set on this child
for (int i = 0; i < child.ValueLookupListFromProperty.Count; i++)
{
// And for each of those properties, loop through the potential values specified in the template
// for that property on that child.
for (int j = 0; j < child.ValueLookupListFromProperty.Entries[i].Value.Count; j++)
{
// Get this value (in valueLookup)
ChildValueLookup valueLookup;
valueLookup = (ChildValueLookup)child.ValueLookupListFromProperty.Entries[i].Value.List[j];
// See if this value is one that is considered to be locally set on the child element
if (valueLookup.LookupType == ValueLookupType.Simple
||
valueLookup.LookupType == ValueLookupType.Resource
||
valueLookup.LookupType == ValueLookupType.TemplateBinding)
{
// This shared value is for this element, so we'll set it.
object value = valueLookup.Value;
// If this is a TemplateBinding, put on an expression for it, so that it can
// be represented correctly (e.g. for serialization). Otherwise, keep it as an ME.
if (valueLookup.LookupType == ValueLookupType.TemplateBinding)
{
value = new TemplateBindingExpression(value as TemplateBindingExtension);
}
// Dynamic resources need to be converted to an expression also.
else if (valueLookup.LookupType == ValueLookupType.Resource)
{
value = new ResourceReferenceExpression(value);
}
// Bindings are handled as just an ME
// Set the value directly onto the element.
MarkupExtension me = value as MarkupExtension;
if (me != null)
{
// This is provided for completeness, but really there's only a few
// MEs that survive TemplateBamlRecordReader. E.g. NullExtension would
// have been converted to a null by now. There's only a few MEs that
// are preserved, e.g. Binding and DynamicResource. Other MEs, such as
// StaticResource, wouldn't be able to ProvideValue here, because we don't
// have a ParserContext.
if (provideValueServiceProvider == null)
{
provideValueServiceProvider = new ProvideValueServiceProvider();
}
provideValueServiceProvider.SetData(element, valueLookup.Property);
value = me.ProvideValue(provideValueServiceProvider);
provideValueServiceProvider.ClearData();
}
(element as DependencyObject).SetValue(valueLookup.Property, value); //sharedDp.Dp, value );
}
}
}
}
}
// Instantiate a tree. This is a recursive routine that will build the
// subtree via calls to itself. The root node being instantiated will
// have identical references for the "container" and "parent" parameters.
// The "affectedChildren" and "noChildIndexChildren" parameters refer to the children
// chain for the "container" object. This chain will have all the
// children - not just the immediate children. The node being
// instantiated here will be added to this chain.
// The tree is instantiated in a depth-first traversal, so children nodes
// are added to the chain in depth-first order as well.
//[CodeAnalysis("AptcaMethodsShouldOnlyCallAptcaMethods")] //Tracking Bug: 29647
internal DependencyObject InstantiateTree(
UncommonField<HybridDictionary[]> dataField,
DependencyObject container,
DependencyObject parent,
List<DependencyObject> affectedChildren,
ref List<DependencyObject> noChildIndexChildren,
ref FrugalStructList<ChildPropertyDependent> resourceDependents)
{
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordXamlBaml, EventTrace.Level.Verbose, EventTrace.Event.WClientParseFefCrInstBegin);
FrameworkElement containerAsFE = container as FrameworkElement;
bool isContainerAnFE = containerAsFE != null;
DependencyObject treeNode = null;
// If we have text, just add it to the parent. Otherwise create the child
// subtree
if (_text != null)
{
// of FrameworkContentElement parent. This is the logical equivalent
// to what happens when adding a child to a visual collection.
IAddChild addChildParent = parent as IAddChild;
if (addChildParent == null)
{
throw new InvalidOperationException(SR.Get(SRID.TypeMustImplementIAddChild,
parent.GetType().Name));
}
else
{
addChildParent.AddText(_text);
}
}
else
{
// Factory create instance
treeNode = CreateDependencyObject();
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordXamlBaml, EventTrace.Level.Verbose, EventTrace.Event.WClientParseFefCrInstEnd);
// The tree node is either a FrameworkElement or a FrameworkContentElement.
// we'll deal with one or the other...
FrameworkObject treeNodeFO = new FrameworkObject(treeNode);
Visual3D treeNodeVisual3D = null;
bool treeNodeIsVisual3D = false;
if (!treeNodeFO.IsValid)
{
// If it's neither of those, we have special support for Visual3D
treeNodeVisual3D = treeNode as Visual3D;
if (treeNodeVisual3D != null)
treeNodeIsVisual3D = true;
}
Debug.Assert( treeNodeFO.IsValid || (treeNodeVisual3D != null),
"We should not be trying to instantiate a node that is neither FrameworkElement nor FrameworkContentElement. A type check should have been done when Type is set");
// And here's the bool we'll use to make the decision.
bool treeNodeIsFE = treeNodeFO.IsFE;
// Handle FE/FCE-specific optimizations
if (!treeNodeIsVisual3D)
{
// Postpone "Initialized" event
NewNodeBeginInit( treeNodeIsFE, treeNodeFO.FE, treeNodeFO.FCE );
// Set the resource reference flags
if (StyleHelper.HasResourceDependentsForChild(_childIndex, ref resourceDependents))
{
treeNodeFO.HasResourceReference = true;
}
// Update the two chains that tracks all the nodes created
// from all the FrameworkElementFactory of this Style.
UpdateChildChains( _childName, _childIndex,
treeNodeIsFE, treeNodeFO.FE, treeNodeFO.FCE,
affectedChildren, ref noChildIndexChildren );
// All FrameworkElementFactory-created elements point to the object
// whose Style.VisualTree definition caused all this to occur
NewNodeStyledParentProperty( container, isContainerAnFE, treeNodeIsFE, treeNodeFO.FE, treeNodeFO.FCE );
// Initialize the per-instance data for the new element. This
// needs to be done before any properties are invalidated.
if (_childIndex != -1)
{
Debug.Assert( _frameworkTemplate != null );
StyleHelper.CreateInstanceDataForChild(dataField, container, treeNode, _childIndex,
_frameworkTemplate.HasInstanceValues, ref _frameworkTemplate.ChildRecordFromChildIndex);
}
// If this element needs to know about the Loaded or Unloaded events, set the optimization
// bit in the element
if (HasLoadedChangeHandler)
{
BroadcastEventHelper.AddHasLoadedChangeHandlerFlagInAncestry(treeNode);
}
}
else
{
if (_childName != null)
{
// Add this instance to the child index chain so that it may
// be tracked by the style
affectedChildren.Add(treeNode);
}
else
{
// Child nodes with no _childID (hence no _childIndex) are
// tracked on a separate chain that will be appended to the
// main chain for cleanup purposes.
if (noChildIndexChildren == null)
{
noChildIndexChildren = new List<DependencyObject>(4);
}
noChildIndexChildren.Add(treeNode);
}
}
// New node is initialized, build tree top down
// (Node added before children of node)
if (container == parent)
{
// Set the NameScope on the root of the Template generated tree
TemplateNameScope templateNameScope = new TemplateNameScope(container);
NameScope.SetNameScope(treeNode, templateNameScope);
// This is the root of the tree
if (isContainerAnFE)
{
// The root is added to the Visual tree (not logical) for the
// case of FrameworkElement parents
containerAsFE.TemplateChild = treeNodeFO.FE;
}
else
{
// The root is added to the logical tree for the case
// of FrameworkContentElement parent. This is the logical equivalent
// to what happens when adding a child to a visual collection.
AddNodeToLogicalTree( (FrameworkContentElement)parent, _type,
treeNodeIsFE, treeNodeFO.FE, treeNodeFO.FCE );
}
}
else
{
// Call parent IAddChild to add treeNodeFO
AddNodeToParent( parent, treeNodeFO );
}
// Either set properties or invalidate them, depending on the type
if (!treeNodeIsVisual3D)
{
// For non-3D content, we need to invalidate any properties that
// came from FrameworkElementFactory.SetValue or VisulaTrigger.SetValue
// so that they can get picked up.
Debug.Assert( _frameworkTemplate != null );
StyleHelper.InvalidatePropertiesOnTemplateNode(
container,
treeNodeFO,
_childIndex,
ref _frameworkTemplate.ChildRecordFromChildIndex,
false /*isDetach*/,
this);
}
else
{
// For 3D, which doesn't understand templates, we set the properties directly
// onto the newly-instantiated element.
for (int i = 0; i < PropertyValues.Count; i++)
{
if (PropertyValues[i].ValueType == PropertyValueType.Set)
{
// Get the value out of the table.
object o = PropertyValues[i].ValueInternal;
// If it's a freezable that can't be frozen, it's probably not sharable,
// so we make a copy of it.
Freezable freezableValue = o as Freezable;
if (freezableValue != null && !freezableValue.CanFreeze)
{
o = freezableValue.Clone();
}
// Or, if it's a markup extension, get the value
// to set on this property from the MarkupExtension itself.
MarkupExtension me = o as MarkupExtension;
if (me != null)
{
ProvideValueServiceProvider serviceProvider = new ProvideValueServiceProvider();
serviceProvider.SetData( treeNodeVisual3D, PropertyValues[i].Property );
o = me.ProvideValue( serviceProvider );
}
// Finally, set the value onto the object.
treeNodeVisual3D.SetValue(PropertyValues[i].Property, o);
}
else
{
// We don't support resource references, triggers, etc within the 3D content
throw new NotSupportedException(SR.Get(SRID.Template3DValueOnly, PropertyValues[i].Property) );
}
}
}
// Build child tree from factories
FrameworkElementFactory childFactory = _firstChild;
while (childFactory != null)
{
childFactory.InstantiateTree(
dataField,
container,
treeNode,
affectedChildren,
ref noChildIndexChildren,
ref resourceDependents);
childFactory = childFactory._nextSibling;
}
if (!treeNodeIsVisual3D)
{
// Fire "Initialized" event
NewNodeEndInit( treeNodeIsFE, treeNodeFO.FE, treeNodeFO.FCE );
}
}
return treeNode;
}
//
// This method
// 1. Retrieves an instance value from per-instance StyleData.
// 2. Creates the StyleData if this is the first request.
//
internal static object GetInstanceValue(
UncommonField<HybridDictionary []> dataField,
DependencyObject container,
FrameworkElement feChild,
FrameworkContentElement fceChild,
int childIndex,
DependencyProperty dp,
int i,
ref EffectiveValueEntry entry)
{
object rawValue = entry.Value;
DependencyObject child = null;
FrameworkElement feContainer;
FrameworkContentElement fceContainer;
Helper.DowncastToFEorFCE(container, out feContainer, out fceContainer, true);
HybridDictionary[] styleData = (dataField != null) ? dataField.GetValue(container) : null;
HybridDictionary instanceValues = (styleData != null) ? styleData[(int)InstanceStyleData.InstanceValues] : null;
InstanceValueKey key = new InstanceValueKey(childIndex, dp.GlobalIndex, i);
object value = (instanceValues != null)? instanceValues[key] : null;
bool isRequestingExpression = (feChild != null) ? feChild.IsRequestingExpression : fceChild.IsRequestingExpression;
if (value == null)
{
value = NotYetApplied;
}
// if the value is a detached expression, replace it with a new one
Expression expr = value as Expression;
if (expr != null && expr.HasBeenDetached)
{
value = NotYetApplied;
}
// if this is the first request, create the value
if (value == NotYetApplied)
{
child = feChild;
if (child == null)
child = fceChild;
MarkupExtension me;
Freezable freezable;
if ((me = rawValue as MarkupExtension) != null)
{
// exception: if the child is not yet initialized and the request
// is for an expression, don't create the value. This gives the parser
// a chance to set local values, to override the style-defined values.
if (isRequestingExpression)
{
bool isInitialized = (feChild != null) ? feChild.IsInitialized : fceChild.IsInitialized;
if (!isInitialized)
{
return DependencyProperty.UnsetValue;
}
}
ProvideValueServiceProvider provideValueServiceProvider = new ProvideValueServiceProvider();
provideValueServiceProvider.SetData( child, dp );
value = me.ProvideValue(provideValueServiceProvider);
}
else if ((freezable = rawValue as Freezable) != null)
{
value = freezable.Clone();
child.ProvideSelfAsInheritanceContext(value, dp);
}
// store it in per-instance StyleData (even if it's DependencyProperty.UnsetValue)
Debug.Assert(value != NotYetApplied, "attempt to retrieve instance value that was never set");
instanceValues[key] = value;
if (value != DependencyProperty.UnsetValue)
{
expr = value as Expression;
// if the instance value is an expression, attach it
if (expr != null)
{
expr.OnAttach(child, dp);
}
}
}
// if the value is an Expression (and we're being asked for the real value),
// delegate to the expression.
if (expr != null)
{
if (!isRequestingExpression)
{
if (child == null)
{
child = feChild;
if (child == null)
child = fceChild;
}
entry.ResetValue(DependencyObject.ExpressionInAlternativeStore, true);
entry.SetExpressionValue(expr.GetValue(child, dp), DependencyObject.ExpressionInAlternativeStore);
}
else
{
entry.Value = value;
}
}
else
{
entry.Value = value;
}
return value;
}
