//------------------------------------------------------
        //
        //  Constructors
        //
        //------------------------------------------------------
        
        //------------------------------------------------------
        //
        //  Internal Methods
        //
        //------------------------------------------------------

        #region Internal Methods
        
        /// <summary>
        ///     A null-safe wrapper around Freezable.Clone().  (If a null
        ///     is encountered it returns null.)
        /// </summary>
        internal static Freezable Clone(Freezable freezable)
        {
            if (freezable == null)
            {
                return null;
            }

            return freezable.Clone();
        }
Пример #2
0
        private void CloneCommon(FreezableCollection <T> source,
                                 CloneCommonType cloneType)
        {
            int count = source._collection.Count;

            _collection = new List <T>(count);

            for (int i = 0; i < count; i++)
            {
                T newValue = source._collection[i];

                Freezable itemAsFreezable = newValue as Freezable;

                if (itemAsFreezable != null)
                {
                    switch (cloneType)
                    {
                    case CloneCommonType.Clone:
                        newValue = itemAsFreezable.Clone() as T;
                        break;

                    case CloneCommonType.CloneCurrentValue:
                        newValue = itemAsFreezable.CloneCurrentValue() as T;
                        break;

                    case CloneCommonType.GetAsFrozen:
                        newValue = itemAsFreezable.GetAsFrozen() as T;
                        break;

                    case CloneCommonType.GetCurrentValueAsFrozen:
                        newValue = itemAsFreezable.GetCurrentValueAsFrozen() as T;
                        break;

                    default:
                        Invariant.Assert(false, "Invalid CloneCommonType encountered.");
                        break;
                    }

                    if (newValue == null)
                    {
                        throw new InvalidOperationException(SR.Get(SRID.Freezable_CloneInvalidType, typeof(T).Name));
                    }
                }

                OnFreezablePropertyChanged(/* oldValue = */ null, newValue);
                _collection.Add(newValue);
            }
        }
        // Token: 0x06000691 RID: 1681 RVA: 0x00014908 File Offset: 0x00012B08
        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 frameworkElement = container as FrameworkElement;
            bool             flag             = frameworkElement != null;
            DependencyObject dependencyObject = null;

            if (this._text != null)
            {
                IAddChild addChild = parent as IAddChild;
                if (addChild == null)
                {
                    throw new InvalidOperationException(SR.Get("TypeMustImplementIAddChild", new object[]
                    {
                        parent.GetType().Name
                    }));
                }
                addChild.AddText(this._text);
            }
            else
            {
                dependencyObject = this.CreateDependencyObject();
                EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordXamlBaml, EventTrace.Level.Verbose, EventTrace.Event.WClientParseFefCrInstEnd);
                FrameworkObject frameworkObject = new FrameworkObject(dependencyObject);
                Visual3D        visual3D        = null;
                bool            flag2           = false;
                if (!frameworkObject.IsValid)
                {
                    visual3D = (dependencyObject as Visual3D);
                    if (visual3D != null)
                    {
                        flag2 = true;
                    }
                }
                bool isFE = frameworkObject.IsFE;
                if (!flag2)
                {
                    FrameworkElementFactory.NewNodeBeginInit(isFE, frameworkObject.FE, frameworkObject.FCE);
                    if (StyleHelper.HasResourceDependentsForChild(this._childIndex, ref resourceDependents))
                    {
                        frameworkObject.HasResourceReference = true;
                    }
                    FrameworkElementFactory.UpdateChildChains(this._childName, this._childIndex, isFE, frameworkObject.FE, frameworkObject.FCE, affectedChildren, ref noChildIndexChildren);
                    FrameworkElementFactory.NewNodeStyledParentProperty(container, flag, isFE, frameworkObject.FE, frameworkObject.FCE);
                    if (this._childIndex != -1)
                    {
                        StyleHelper.CreateInstanceDataForChild(dataField, container, dependencyObject, this._childIndex, this._frameworkTemplate.HasInstanceValues, ref this._frameworkTemplate.ChildRecordFromChildIndex);
                    }
                    if (this.HasLoadedChangeHandler)
                    {
                        BroadcastEventHelper.AddHasLoadedChangeHandlerFlagInAncestry(dependencyObject);
                    }
                }
                else if (this._childName != null)
                {
                    affectedChildren.Add(dependencyObject);
                }
                else
                {
                    if (noChildIndexChildren == null)
                    {
                        noChildIndexChildren = new List <DependencyObject>(4);
                    }
                    noChildIndexChildren.Add(dependencyObject);
                }
                if (container == parent)
                {
                    TemplateNameScope value = new TemplateNameScope(container);
                    NameScope.SetNameScope(dependencyObject, value);
                    if (flag)
                    {
                        frameworkElement.TemplateChild = frameworkObject.FE;
                    }
                    else
                    {
                        FrameworkElementFactory.AddNodeToLogicalTree((FrameworkContentElement)parent, this._type, isFE, frameworkObject.FE, frameworkObject.FCE);
                    }
                }
                else
                {
                    this.AddNodeToParent(parent, frameworkObject);
                }
                if (!flag2)
                {
                    StyleHelper.InvalidatePropertiesOnTemplateNode(container, frameworkObject, this._childIndex, ref this._frameworkTemplate.ChildRecordFromChildIndex, false, this);
                }
                else
                {
                    for (int i = 0; i < this.PropertyValues.Count; i++)
                    {
                        if (this.PropertyValues[i].ValueType != PropertyValueType.Set)
                        {
                            throw new NotSupportedException(SR.Get("Template3DValueOnly", new object[]
                            {
                                this.PropertyValues[i].Property
                            }));
                        }
                        object    obj       = this.PropertyValues[i].ValueInternal;
                        Freezable freezable = obj as Freezable;
                        if (freezable != null && !freezable.CanFreeze)
                        {
                            obj = freezable.Clone();
                        }
                        MarkupExtension markupExtension = obj as MarkupExtension;
                        if (markupExtension != null)
                        {
                            ProvideValueServiceProvider provideValueServiceProvider = new ProvideValueServiceProvider();
                            provideValueServiceProvider.SetData(visual3D, this.PropertyValues[i].Property);
                            obj = markupExtension.ProvideValue(provideValueServiceProvider);
                        }
                        visual3D.SetValue(this.PropertyValues[i].Property, obj);
                    }
                }
                for (FrameworkElementFactory frameworkElementFactory = this._firstChild; frameworkElementFactory != null; frameworkElementFactory = frameworkElementFactory._nextSibling)
                {
                    frameworkElementFactory.InstantiateTree(dataField, container, dependencyObject, affectedChildren, ref noChildIndexChildren, ref resourceDependents);
                }
                if (!flag2)
                {
                    FrameworkElementFactory.NewNodeEndInit(isFE, frameworkObject.FE, frameworkObject.FCE);
                }
            }
            return(dependencyObject);
        }