public BaseActionImplementor (Adapter adapter, AutomationPeer peer)
: base (adapter, peer)
{
// TODO: also do this in response to patterns being
// added/removed
RefreshActions ();
}
public ExpandCollapseInvokeToggle (Adapter adapter, AutomationPeer peer)
: base (adapter, peer)
{
adapter.AutomationPropertyChanged
+= new EventHandler<AutomationPropertyChangedEventArgs> (
OnAutomationPropertyChanged);
}
public GridTable (Adapter adapter, AutomationPeer peer) : base (adapter, peer)
{
this.peer = peer;
this.tableProvider = (ITableProvider) peer.GetPattern (
PatternInterface.Table);
}
public Calendar (Adapter adapter, AutomationPeer peer)
: base (adapter, peer)
{
FrameworkElementAutomationPeer feap = peer as FrameworkElementAutomationPeer;
if (feap == null)
return;
// XXX: We can't link to System.Windows.Controls, so
// we'll use reflection instead.
UIElement calendar = feap.Owner;
Type t = calendar.GetType ();
if (t.Namespace != "System.Windows.Controls" || t.Name != "Calendar")
return;
// XXX SUCH A HACK! XXX
// Workaround a bug in CalendarAutomationPeer.
// Even though its selection and NameProperty
// change, it does not send the proper change
// notifications via the peer. So we fake them.
EventInfo ei = t.GetEvent ("SelectedDatesChanged");
ei.AddEventHandler (calendar,
new EventHandler<SelectionChangedEventArgs> (OnSelectedDatesChanged));
}
public RadioButton (Adapter adapter, AutomationPeer peer)
: base (adapter, peer)
{
adapter.AutomationPropertyChanged
+= new EventHandler<AutomationPropertyChangedEventArgs> (
OnAutomationPropertyChanged);
}
public Selection (Adapter adapter, AutomationPeer peer) : base (adapter, peer)
{
this.selectionProvider = (ISelectionProvider) peer.GetPattern (
PatternInterface.Selection);
adapter.AutomationPropertyChanged += (o, args) => {
if (args.Property == SelectionPatternIdentifiers.SelectionProperty)
adapter.EmitSignal ("selection_changed");
};
}
public RangeValue (Adapter adapter, AutomationPeer peer)
: base (adapter, peer)
{
this.rangeValueProvider = (IRangeValueProvider) peer.GetPattern (
PatternInterface.RangeValue);
adapter.AutomationPropertyChanged
+= new EventHandler<AutomationPropertyChangedEventArgs> (
OnAutomationPropertyChanged);
}
public SelectionItem (Adapter adapter, AutomationPeer peer) : base (adapter, peer)
{
bool? isSelected = IsSelected;
if (isSelected.HasValue)
WasSelected = isSelected.Value;
adapter.AutomationPropertyChanged
+= new EventHandler<AutomationPropertyChangedEventArgs> (
OnAutomationPropertyChanged);
adapter.AutomationEventRaised
+= new EventHandler<AutomationEventEventArgs> (
OnAutomationEventRaised);
}
public BasePatternImplementor (Adapter adapter, AutomationPeer peer)
{
this.adapter = adapter;
this.peer = peer;
}
public TabItem (Adapter adapter, AutomationPeer peer) : base (adapter, peer)
{
adapter.AutomationPropertyChanged += (o, args) => {
if (args.Property == SelectionItemPatternIdentifiers.IsSelectedProperty) {
isSelectedChanged = true;
newValue = (bool) args.NewValue;
}
};
// XXX: Warning! Hack alert!
//
// TabItem's children are avaliable *only* when the TabItem is selected,
// (its IsSelectedProperty is true). We are updating children here instead for
// two reasons:
//
// 1. We can't modify the sources in System.Windows.Controls.dll because this
// dll is bundled in the packaged XAP, VS does this automatically. If we
// fix the sources in SWC.dll all applications built using VS *will fail*
// anyway.
// 2. We are using both the AutomationPropertyEvent (IsSelected) and the event
// LayoutUpdated because the TabControl has *one* SelectedContent area, and
// this area is updated *after* raising the event. If we only use
// IsSelectedPropertyEvent we will always get the previous/unselected
// TabItem's children instead of the current/selected's.
//
FrameworkElement tabItem
= ((FrameworkElementAutomationPeer) peer).Owner as FrameworkElement;
if (tabItem != null) {
tabItem.LayoutUpdated += (o, e) => {
if (isSelectedChanged) {
Adapter parentTabControl = ParentTabControl;
// We don't have a parent let's update our children anyway.
if (parentTabControl == null)
adapter.HandleStructureChanged ();
// We have a parent, let's update our children "the right way",
// first the unselected TabItem then the selected TabItem.
else {
Adapter cachedTabItem = null;
if (CachedTabItems.TryGetValue (parentTabControl,
out cachedTabItem)) {
if (newValue) {
cachedTabItem.HandleStructureChanged ();
cachedTabItem.NotifyStateChange (Atk.StateType.Selected);
adapter.HandleStructureChanged ();
adapter.NotifyStateChange (Atk.StateType.Selected);
} else {
adapter.HandleStructureChanged ();
adapter.NotifyStateChange (Atk.StateType.Selected);
cachedTabItem.HandleStructureChanged ();
cachedTabItem.NotifyStateChange (Atk.StateType.Selected);
}
CachedTabItems.Remove (parentTabControl);
} else
CachedTabItems.Add (parentTabControl, adapter);
}
isSelectedChanged = false;
newValue = false;
}
};
}
}
internal int GetIndexOfChild (Adapter child)
{
CacheChildren ();
if (children == null || child == null)
return -1;
// Intentionally use Children list instead of
// Peer.GetChildren () as we're concerned with what is
// currently displayed to the user
lock (ChildrenLock) {
return children.IndexOf (child.Peer);
}
}
