protected virtual void OnTileStateChanged(TileViewItemState oldValue, TileViewItemState newValue)
{
this.UpdateTileStates();
if (this.headerPart != null)
{
this.headerPart.TileState = newValue;
}
if (this.cancelTileStateChanged || this.ParentTileView == null)
{
if (!this.cancelTileStateChanged)
{
PreviewTileStateChangedEventArgs previewTileStateChangedEventArg = new PreviewTileStateChangedEventArgs()
{
TileState = newValue,
RoutedEvent = RadTileViewItem.TileStateChangedEvent,
Source = this
};
this.OnTileStateChanged(previewTileStateChangedEventArg);
}
return;
}
RadRoutedEventArgs tilesStateChangedArgs = new RadRoutedEventArgs(RadTileView.PreviewTilesStateChangedEvent);
if (!this.ParentTileView.IsPreviewTilesStateRaised)
{
this.ParentTileView.IsPreviewTilesStateRaised = true;
this.ParentTileView.OnPreviewTilesStateChanged(tilesStateChangedArgs);
}
bool rollback = false;
if (!tilesStateChangedArgs.Handled)
{
PreviewTileStateChangedEventArgs previewTileStateChangedEventArg1 = new PreviewTileStateChangedEventArgs()
{
TileState = oldValue,
RoutedEvent = RadTileViewItem.PreviewTileStateChangedEvent,
Source = this
};
PreviewTileStateChangedEventArgs args = previewTileStateChangedEventArg1;
this.OnPreviewTileStateChanged(args);
if (args.Handled)
{
rollback = true;
}
else
{
this.OnTileStateChanged(new TileStateChangedEventArgs(RadTileViewItem.TileStateChangedEvent, this, newValue, oldValue));
}
}
else
{
rollback = true;
}
if (!this.CanChangeTileState(oldValue))
{
rollback = true;
}
if (rollback)
{
this.ParentTileView.IsPreviewTilesStateRaised = false;
this.cancelTileStateChanged = true;
this.TileState = oldValue;
this.cancelTileStateChanged = false;
return;
}
if (oldValue == TileViewItemState.Maximized && this.TileState == TileViewItemState.Minimized && this.ParentTileView.MaximizedItem == this && this.ParentTileView.MaximizeMode == TileViewMaximizeMode.ZeroOrOne)
{
this.ParentTileView.MaximizedItem = null;
return;
}
if (base.Visibility == Visibility.Visible)
{
this.ParentTileView.ChangeTileState(this);
}
}
protected virtual void OnPreviewTileStateChanged(PreviewTileStateChangedEventArgs e)
{
this.RaiseEvent(e);
}
