private void HandlePropertyValueChanged(object sender, DPropertyValueChangedEventArgs e)
{
if (e.OldValue is IAttachedPropertiesContainer)
{
var oldContainer = e.OldValue as IAttachedPropertiesContainer;
if (oldContainer != null)
{
oldContainer.AddedItem += HandleAddedItem;
oldContainer.RemovedItem += HandleRemovedItem;
}
}
var container = e.NewValue as IAttachedPropertiesContainer;
if (container != null)
{
Property = container.GetProperty(Item, PropertyName);
container.AddedItem += HandleAddedItem;
container.RemovedItem += HandleRemovedItem;
}
else
{
Property = null;
}
}
private void HandlePropertyChanged (object sender, DPropertyValueChangedEventArgs e)
{
if (Source != null) {
Source.DependencyPropertyValueChanged -= HandlePropertyValueChanged;
var container = Source.Value as IAttachedPropertiesContainer;
if (container != null) {
container.AddedItem -= HandleAddedItem;
container.RemovedItem -= HandleRemovedItem;
}
}
Source = e.NewValue as IDependencyProperty;
if (Source != null) {
var container = Source.Value as IAttachedPropertiesContainer;
if (container != null) {
Property = container.GetProperty (Item, PropertyName);
container.AddedItem += HandleAddedItem;
container.RemovedItem += HandleRemovedItem;
}
Source.DependencyPropertyValueChanged += HandlePropertyValueChanged;
} else {
Property = null;
}
}
private void HandlePropertyChanged(object sender, DPropertyValueChangedEventArgs e)
{
if (Source != null)
{
Source.DependencyPropertyValueChanged -= HandlePropertyValueChanged;
var container = Source.Value as IAttachedPropertiesContainer;
if (container != null)
{
container.AddedItem -= HandleAddedItem;
container.RemovedItem -= HandleRemovedItem;
}
}
Source = e.NewValue as IDependencyProperty;
if (Source != null)
{
var container = Source.Value as IAttachedPropertiesContainer;
if (container != null)
{
Property = container.GetProperty(Item, PropertyName);
container.AddedItem += HandleAddedItem;
container.RemovedItem += HandleRemovedItem;
}
Source.DependencyPropertyValueChanged += HandlePropertyValueChanged;
}
else
{
Property = null;
}
}
private void HandleItemsPanelChanged (object sender, DPropertyValueChangedEventArgs<Panel> e)
{
if (e.OldValue != null)
RemoveVisualChild (e.OldValue);
if (e.NewValue != null)
AddVisualChild (e.NewValue);
}
private void HandleHeaderChanged (object sender, DPropertyValueChangedEventArgs e)
{
if (e.OldValue is UIElement)
(e.OldValue as UIElement).PreviewButtonPressEvent -= HandleHeaderPreviewButtonPressEvent;
if (e.NewValue is UIElement)
(e.NewValue as UIElement).PreviewButtonPressEvent += HandleHeaderPreviewButtonPressEvent;
}
private void HandleValueChanged (object sender, DPropertyValueChangedEventArgs<Token> e)
{
if (e.OldValue != null)
e.OldValue.Parent = null;
if (e.NewValue != null)
e.NewValue.Parent = this;
}
private void HandleContentChanged (object sender, DPropertyValueChangedEventArgs<UIElement> e)
{
if (e.OldValue != null)
RemoveVisualChild (e.OldValue);
if (e.NewValue != null)
AddVisualChild (e.NewValue);
}
private void HandleTemplateChanged (object sender, DPropertyValueChangedEventArgs<ControlTemplate> e)
{
if (templateControl != null)
RemoveVisualChild (templateControl);
templateControl = e.NewValue != null ? e.NewValue.LoadContent (this) : null;
if (templateControl != null)
AddVisualChild (templateControl);
}
private void HandleTargetPropertyChanged (object sender, DPropertyValueChangedEventArgs e)
{
if (TargetProperty != null)
TargetProperty.DependencyPropertyValueChanged -= HandleTargetValueChanged;
TargetProperty = e.NewValue as IDependencyProperty;
if (TargetProperty != null)
TargetProperty.DependencyPropertyValueChanged += HandleTargetValueChanged;
UpdateTargetValue ();
}
private void HandlePropertyChanged (object sender, DPropertyValueChangedEventArgs e)
{
if (Source != null)
Source.DependencyPropertyValueChanged -= HandlePropertyValueChanged;
Source = e.NewValue as IDependencyProperty;
if (Source != null) {
if (Source.Value != null)
Property = (Source.Value as DependencyObject).GetProperty (PropertyName);
Source.DependencyPropertyValueChanged += HandlePropertyValueChanged;
}
}
private void HandleSelectedItemChanged (object sender, DPropertyValueChangedEventArgs<UIElement> e)
{
if (e.OldValue != null) {
var isSelected = e.OldValue.GetProperty ("IsSelected");
if (isSelected != null)
isSelected.Value = false;
}
if (e.NewValue != null) {
var isSelected = e.NewValue.GetProperty ("IsSelected");
if (isSelected != null)
isSelected.Value = true;
}
}
private void HandleItemsPanelChanged (object sender, DPropertyValueChangedEventArgs<Panel> e)
{
if (e.OldValue != null) {
e.OldValue.Children.Clear ();
RemoveVisualChild (e.OldValue);
}
if (e.NewValue != null) {
AddVisualChild (e.NewValue);
foreach (var item in Items) {
e.NewValue.Children.Add (item.Visual);
}
}
}
private void HandleTargetPropertyChanged(object sender, DPropertyValueChangedEventArgs e)
{
if (TargetProperty != null)
{
TargetProperty.DependencyPropertyValueChanged -= HandleTargetValueChanged;
}
TargetProperty = e.NewValue as IDependencyProperty;
if (TargetProperty != null)
{
TargetProperty.DependencyPropertyValueChanged += HandleTargetValueChanged;
}
UpdateTargetValue();
}
private void HandlePropertyChanged(object sender, DPropertyValueChangedEventArgs e)
{
if (Source != null)
{
Source.DependencyPropertyValueChanged -= HandlePropertyValueChanged;
}
Source = e.NewValue as IDependencyProperty;
if (Source != null)
{
if (Source.Value != null)
{
Property = (Source.Value as DependencyObject).GetProperty(PropertyName);
}
Source.DependencyPropertyValueChanged += HandlePropertyValueChanged;
}
}
private void ItemsSourceChanged (object sender, DPropertyValueChangedEventArgs<IEnumerable> e)
{
if (ItemsPanel == null)
return;
ItemsPanel.Children.Clear ();
foreach (var o in e.NewValue) {
var child = ItemTemplate.LoadContent (o);
ItemsPanel.Children.Add (child);
items.Add (new ItemVisual () { Item = o, Visual = child });
}
if (e.NewValue is INotifyCollectionChanged) {
var collection = e.NewValue as INotifyCollectionChanged;
collection.CollectionChanged += HandleCollectionChanged;
}
}
private void HandlePropertyChanged (object sender, DPropertyValueChangedEventArgs e)
{
if (Changed != null)
Changed (this, EventArgs.Empty);
}
private void HandleStyleChanged (object sender, DPropertyValueChangedEventArgs<Style> e)
{
if (e.OldValue != null)
RemoveStyle (e.OldValue);
if (e.NewValue != null)
ApplyStyle (e.NewValue);
}
private void HandlePropertyValueChanged (object sender, DPropertyValueChangedEventArgs e)
{
Property = (e.NewValue as DependencyObject).GetProperty (PropertyName);
}
private void HandleSelectionChanged (object sender, DPropertyValueChangedEventArgs<Selection> e)
{
if (e.OldValue != null) {
e.OldValue.GetProperty ("Position").DependencyPropertyValueChanged -= HandleSelectionChanged;
e.OldValue.GetProperty ("SelectedToken").DependencyPropertyValueChanged -= HandleSelectionChanged;
e.OldValue.GetProperty ("Type").DependencyPropertyValueChanged -= HandleSelectionChanged;
}
if (e.NewValue != null) {
e.NewValue.GetProperty ("Position").DependencyPropertyValueChanged += HandleSelectionChanged;
e.NewValue.GetProperty ("SelectedToken").DependencyPropertyValueChanged += HandleSelectionChanged;
e.NewValue.GetProperty ("Type").DependencyPropertyValueChanged += HandleSelectionChanged;
}
}
private void HandlePropertyValueChanged(object sender, DPropertyValueChangedEventArgs e)
{
Property = (e.NewValue as DependencyObject).GetProperty(PropertyName);
}
private void HandleSelectedTokenChanged (object sender, DPropertyValueChangedEventArgs<Token> e)
{
Position = 0;
}
private void HandleTargetValueChanged(object sender, DPropertyValueChangedEventArgs e)
{
UpdateSourceValue();
}
private void HandlePropertyValueChanged (object sender, DPropertyValueChangedEventArgs e)
{
if (e.OldValue is IAttachedPropertiesContainer) {
var oldContainer = e.OldValue as IAttachedPropertiesContainer;
if (oldContainer != null) {
oldContainer.AddedItem += HandleAddedItem;
oldContainer.RemovedItem += HandleRemovedItem;
}
}
var container = e.NewValue as IAttachedPropertiesContainer;
if (container != null) {
Property = container.GetProperty (Item, PropertyName);
container.AddedItem += HandleAddedItem;
container.RemovedItem += HandleRemovedItem;
} else {
Property = null;
}
}
private void HandleTargetValueChanged (object sender, DPropertyValueChangedEventArgs e)
{
UpdateSourceValue ();
}
private void HandleIsOpenChanged (object sender, DPropertyValueChangedEventArgs<bool> e)
{
if (e.NewValue) {
RaiseOpened ();
Mouse.Captured = this;
} else {
RaiseClosed ();
Mouse.Captured = null;
}
}
private void HandleNeedToEvaluateChanged (object sender, DPropertyValueChangedEventArgs<bool> e)
{
if (!e.NewValue)
return;
var resultToken = Root.Tokens.OfType<ResultToken> ().FirstOrDefault ();
if (resultToken == null)
return;
resultToken.Child = new TextToken ();
}
private void ItemsSourceChanged (object sender, DPropertyValueChangedEventArgs<IEnumerable> e)
{
if (e.OldValue is INotifyCollectionChanged)
(e.NewValue as INotifyCollectionChanged).CollectionChanged -= HandleItemSourceCollectionChanged;
foreach (var o in e.NewValue) {
var child = ItemTemplate.LoadContent (o);
Items.Add (new ItemView () { Item = o, Visual = child });
}
if (e.NewValue is INotifyCollectionChanged)
(e.NewValue as INotifyCollectionChanged).CollectionChanged += HandleItemSourceCollectionChanged;
}
private void HandlePropertyValueChanged (object sender, DPropertyValueChangedEventArgs<object> e)
{
IsMatch = (e.NewValue == null) ? Value == null : e.NewValue.Equals (Value);
}
private void HandleIsOpenChanged (object sender, DPropertyValueChangedEventArgs<bool> e)
{
if (e.NewValue)
RaiseOpened ();
else
RaiseClosed ();
}
private void HandleSelectionChanged (object sender, DPropertyValueChangedEventArgs e)
{
RenderRoot ();
}
