protected SelectorItemAutomationPeer(UIElement owner) : base(owner)
{
ListBoxItem listboxitem = owner as ListBoxItem;
if (listboxitem != null)
{
// SelectionItem Pattern Automation Events
// - SelectionContainerProperty
listboxitem.ParentSelectorChanged += (o, e) => {
AutomationPeer oldSelectorPeer = null;
AutomationPeer newSelectorPeer = null;
if (selector != null)
{
oldSelectorPeer
= FrameworkElementAutomationPeer.CreatePeerForElement(selector);
}
if (listboxitem.ParentSelector != null)
{
newSelectorPeer
= FrameworkElementAutomationPeer.CreatePeerForElement(listboxitem.ParentSelector);
}
RaisePropertyChangedEvent(SelectionItemPatternIdentifiers.SelectionContainerProperty,
ProviderFromPeer(oldSelectorPeer),
ProviderFromPeer(newSelectorPeer));
selector = listboxitem.ParentSelector;
};
selector = listboxitem.ParentSelector;
}
}
private AutomationPeer GetParentPeer(FrameworkElement element)
{
// We are returning parents of children already instantiated.
if (element == null)
{
return(null);
}
FrameworkElement parent = VisualTreeHelper.GetParent(element) as FrameworkElement;
if (parent == null)
{
return(null);
}
// Some parents don't return an Automation Peer (for example: Border or Panel subclasses)
// We need to create the Peer because some Peers return children that don't
// necesarily return this peer when calling GetParent
// (for example: ListBox when Template is not null)
AutomationPeer peer = FrameworkElementAutomationPeer.CreatePeerForElement(parent);
if (peer == null)
{
return(GetParentPeer(parent));
}
else
{
return(peer);
}
}
private void SetScrollBarAutomationPeer(ScrollBar scrollbar, AutomationOrientation orientation)
{
if (scrollbar == null)
{
if (orientation == AutomationOrientation.Horizontal)
{
hScrollbarPeer = null;
}
else
{
vScrollbarPeer = null;
}
}
else
{
if (orientation == AutomationOrientation.Horizontal)
{
hScrollbarPeer
= FrameworkElementAutomationPeer.CreatePeerForElement(scrollbar) as ScrollBarAutomationPeer;
}
else
{
vScrollbarPeer
= FrameworkElementAutomationPeer.CreatePeerForElement(scrollbar) as ScrollBarAutomationPeer;
}
}
}
protected override List <AutomationPeer> GetChildrenCore()
{
ItemsControl itemsControl = (ItemsControl)Owner;
if (itemsControl.Items.Count == 0)
{
return(null);
}
List <AutomationPeer> children = new List <AutomationPeer> ();
for (int index = 0; index < itemsControl.Items.Count; index++)
{
UIElement item = GetItem(itemsControl, index);
if (item == null)
{
return(null);
}
AutomationPeer peer = FrameworkElementAutomationPeer.CreatePeerForElement(item);
if (peer != null)
{
children.Add(peer);
}
}
return(children);
}
protected override List <AutomationPeer> GetChildrenCore()
{
TreeView owner = OwnerTreeView;
ItemCollection items = owner.Items;
if (items.Count <= 0)
{
return(null);
}
List <AutomationPeer> peers = new List <AutomationPeer>(items.Count);
for (int i = 0; i < items.Count; i++)
{
TreeViewItem element = owner.ItemContainerGenerator.ContainerFromIndex(i) as TreeViewItem;
if (element != null)
{
peers.Add(
FrameworkElementAutomationPeer.FromElement(element) ??
FrameworkElementAutomationPeer.CreatePeerForElement(element));
}
}
return(peers);
}
/// <summary>
/// Returns a System.Windows.Point that represents the clickable space that is
/// on the System.Windows.UIElement that is associated with this System.Windows.Automation.Peers.FrameworkElementAutomationPeer.
/// This method is called by System.Windows.Automation.Peers.AutomationPeer.GetClickablePoint().
/// </summary>
/// <returns>The System.Windows.Point on the element that allows a click.</returns>
protected override Point GetClickablePointCore()
{
// Return the clickable point of the page number TextBox when present.
switch (this.OwningDataPager.DisplayMode)
{
case PagerDisplayMode.FirstLastPreviousNext:
case PagerDisplayMode.PreviousNext:
if (this.OwningDataPager.CurrentPageTextBox != null)
{
AutomationPeer peer = FrameworkElementAutomationPeer.FromElement(this.OwningDataPager.CurrentPageTextBox);
if (peer != null)
{
peer.InvalidatePeer();
}
else
{
peer = FrameworkElementAutomationPeer.CreatePeerForElement(this.OwningDataPager.CurrentPageTextBox);
}
if (peer != null)
{
return(peer.GetClickablePoint());
}
}
break;
}
return(base.GetClickablePointCore());
}
/// <summary>
/// Provides initialization for base class values when called by the constructor
/// of a derived class.
/// </summary>
/// <param name="item">The item to create the automation peer for.</param>
/// <returns>The item automation peer.</returns>
protected override ItemAutomationPeer CreateItemAutomationPeer(object item)
{
ItemAutomationPeer peer = null;
UIElement element = item as UIElement;
if (element != null)
{
peer = FrameworkElementAutomationPeer.CreatePeerForElement(element) as ItemAutomationPeer;
}
return(peer);
}
private AutomationPeer GetSelectedAutomationPeer()
{
Selector selector = (Selector)Owner;
if (selector.SelectedIndex == -1)
{
return(null);
}
return(FrameworkElementAutomationPeer.CreatePeerForElement((UIElement)selector.ItemContainerGenerator.ContainerFromIndex(selector.SelectedIndex)));
}
protected override AutomationPeer GetLabeledByCore()
{
UIElement labeledBy = owner.GetValue(AutomationProperties.LabeledByProperty) as UIElement;
if (labeledBy != null)
{
return(FrameworkElementAutomationPeer.CreatePeerForElement(labeledBy));
}
else
{
return(null);
}
}
IRawElementProviderSimple[] ISelectionProvider.GetSelection()
{
if (this.OwningRow != null &&
this.OwningDataGrid.DisplayData.IsRowDisplayed(this.OwningRow.Index) &&
this.OwningDataGrid.CurrentRowIndex == this.OwningRow.Index)
{
DataGridCell cell = this.OwningRow.Cells[this.OwningRow.OwningGrid.CurrentColumnIndex];
AutomationPeer peer = FrameworkElementAutomationPeer.CreatePeerForElement(cell);
if (peer != null)
{
return(new IRawElementProviderSimple[] { ProviderFromPeer(peer) });
}
}
return(null);
}
IRawElementProviderSimple[] ISelectionProvider.GetSelection()
{
if (this.OwningRow != null &&
this.OwningDataGrid.IsSlotVisible(this.OwningRow.Slot) &&
this.OwningDataGrid.CurrentSlot == this.OwningRow.Slot)
{
DataGridCell cell = this.OwningRow.Cells[this.OwningRow.OwningGrid.CurrentColumnIndex];
AutomationPeer peer = FrameworkElementAutomationPeer.CreatePeerForElement(cell);
if (peer != null)
{
return(new IRawElementProviderSimple[] { ProviderFromPeer(peer) });
}
}
return(null);
}
public override object GetPattern(PatternInterface patternInterface)
{
if (patternInterface == PatternInterface.Scroll)
{
ScrollViewer patternImplementor = ScrollPatternImplementor;
if (patternImplementor != null)
{
AutomationPeer peer
= FrameworkElementAutomationPeer.CreatePeerForElement(patternImplementor);
return(peer.GetPattern(patternInterface));
}
return(null);
}
return(base.GetPattern(patternInterface));
}
/// <summary>
/// Gets the table item's column headers.
/// </summary>
/// <returns>The table item's column headers</returns>
IRawElementProviderSimple[] ITableItemProvider.GetColumnHeaderItems()
{
if (IsDayButton && OwningButton != null)
{
if (this.OwningCalendar != null && this.OwningCalendarProvider != null)
{
IRawElementProviderSimple[] headers = ((ITableProvider)FrameworkElementAutomationPeer.CreatePeerForElement(this.OwningCalendar)).GetColumnHeaders();
if (headers != null)
{
int column = ((IGridItemProvider)this).Column;
return(new IRawElementProviderSimple[] { headers[column] });
}
}
}
return(null);
}
/// <summary>
/// AutomationPeer for an item in a DataGrid
/// </summary>
public DataGridItemAutomationPeer(object item, DataGrid dataGrid)
: base(dataGrid)
{
if (item == null)
{
//
throw new ElementNotAvailableException();
}
if (dataGrid == null)
{
//
throw new ElementNotAvailableException();
}
_item = item;
_dataGridAutomationPeer = FrameworkElementAutomationPeer.CreatePeerForElement(dataGrid);
}
protected override List <AutomationPeer> GetChildrenCore()
{
List <AutomationPeer> children = base.GetChildrenCore();
DataGridColumnHeadersPresenter columnsHeaderPresenter = this.OwningDataGrid.ColumnHeadersPresenter;
// Add ColumnsHeaderPresenter if it is visible
if (columnsHeaderPresenter != null && columnsHeaderPresenter.IsVisible)
{
AutomationPeer columnsHeaderPresenterPeer = FrameworkElementAutomationPeer.CreatePeerForElement(columnsHeaderPresenter);
if (columnsHeaderPresenterPeer != null)
{
if (children == null)
{
children = new List <AutomationPeer>(1);
}
children.Insert(0, columnsHeaderPresenterPeer);
}
}
return(children);
}
/// <summary>
/// Retrieves a UI automation provider for each child element that is
/// selected.
/// </summary>
/// <returns>An array of UI automation providers.</returns>
/// <remarks>
/// This API supports the .NET Framework infrastructure and is not
/// intended to be used directly from your code.
/// </remarks>
IRawElementProviderSimple[] ISelectionProvider.GetSelection()
{
if (OwnerAutoCompleteBox.SelectionAdapter != null)
{
object selectedItem = OwnerAutoCompleteBox.SelectionAdapter.SelectedItem;
if (selectedItem != null)
{
UIElement uie = selectedItem as UIElement;
if (uie != null)
{
AutomationPeer peer = FrameworkElementAutomationPeer.CreatePeerForElement(uie);
if (peer != null)
{
return(new IRawElementProviderSimple[] { ProviderFromPeer(peer) });
}
}
}
}
return(new IRawElementProviderSimple[] { });
}
/// <summary>
/// Gets a control pattern for the
/// <see cref="T:System.Windows.Controls.TreeView" /> that is associated
/// with this
/// <see cref="T:System.Windows.Automation.Peers.TreeViewAutomationPeer" />.
/// </summary>
/// <param name="patternInterface">
/// One of the enumeration values that indicates the control pattern.
/// </param>
/// <returns>
/// The object that implements the pattern interface, or null if the
/// specified pattern interface is not implemented by this peer.
/// </returns>
public override object GetPattern(PatternInterface patternInterface)
{
if (patternInterface == PatternInterface.Selection)
{
return this;
}
else if (patternInterface == PatternInterface.Scroll)
{
ScrollViewer scroll = OwnerTreeView.ItemsControlHelper.ScrollHost;
if (scroll != null)
{
AutomationPeer peer = FrameworkElementAutomationPeer.CreatePeerForElement(scroll);
IScrollProvider provider = peer as IScrollProvider;
if (provider != null)
{
peer.EventsSource = this;
return provider;
}
}
}
return null;
}
/// <summary>
/// AutomationPeer for a group of items in a DataGrid
/// </summary>
public DataGridGroupItemAutomationPeer(CollectionViewGroup group, DataGrid dataGrid)
: base(dataGrid)
{
if (group == null)
{
//
throw new ElementNotAvailableException();
}
if (dataGrid == null)
{
//
throw new ElementNotAvailableException();
}
_group = group;
_dataGridAutomationPeer = FrameworkElementAutomationPeer.CreatePeerForElement(dataGrid);
}
internal static List <AutomationPeer> GetChildrenRecursively(UIElement uielement)
{
List <AutomationPeer> children = new List <AutomationPeer> ();
int childrenCount = VisualTreeHelper.GetChildrenCount(uielement);
for (int child = 0; child < childrenCount; child++)
{
UIElement element = VisualTreeHelper.GetChild(uielement, child) as UIElement;
if (element == null)
{
continue;
}
AutomationPeer peer
= FrameworkElementAutomationPeer.CreatePeerForElement(element);
if (peer != null)
{
children.Add(peer);
}
else
{
List <AutomationPeer> returnedChildren
= GetChildrenRecursively(element);
if (returnedChildren != null)
{
children.AddRange(returnedChildren);
}
}
}
if (children.Count == 0)
{
return(null);
}
return(children);
}
protected override string GetNameCore()
{
ButtonBase buttonBase = Owner as ButtonBase;
// Only when Content is TextBlock TextBlock.Name is returned
string name = buttonBase.Content as string;
if (name == null)
{
TextBlock textblock = buttonBase.Content as TextBlock;
if (textblock == null)
{
name = string.Empty;
}
else
{
AutomationPeer peer
= FrameworkElementAutomationPeer.CreatePeerForElement(textblock);
name = peer.GetName();
}
}
return(buttonBase.GetValue(AutomationProperties.NameProperty) as string ?? name);
}
protected override List <AutomationPeer> GetChildrenCore()
{
List <AutomationPeer> children = new List <AutomationPeer>();
AutoCompleteBox owner = OwnerAutoCompleteBox;
// TextBox part.
TextBox textBox = owner.TextBox;
if (textBox != null)
{
AutomationPeer peer = FrameworkElementAutomationPeer.CreatePeerForElement(textBox);
if (peer != null)
{
children.Insert(0, peer);
}
}
// Include SelectionAdapter's children.
if (owner.SelectionAdapter != null)
{
AutomationPeer selectionAdapterPeer = owner.SelectionAdapter.CreateAutomationPeer();
if (selectionAdapterPeer != null)
{
List <AutomationPeer> listChildren = selectionAdapterPeer.GetChildren();
if (listChildren != null)
{
foreach (AutomationPeer child in listChildren)
{
children.Add(child);
}
}
}
}
return(children);
}
protected override List <AutomationPeer> GetChildrenCore()
{
if (OwningCalendar.MonthControl == null)
{
return(null);
}
List <AutomationPeer> peers = new List <AutomationPeer>();
Dictionary <DateTimeCalendarModePair, DateTimeAutomationPeer> newChildren = new Dictionary <DateTimeCalendarModePair, DateTimeAutomationPeer>();
// Step 1: Add previous, header and next buttons
AutomationPeer buttonPeer;
buttonPeer = FrameworkElementAutomationPeer.CreatePeerForElement(OwningCalendar.MonthControl.PreviousButton);
if (buttonPeer != null)
{
peers.Add(buttonPeer);
}
buttonPeer = FrameworkElementAutomationPeer.CreatePeerForElement(OwningCalendar.MonthControl.HeaderButton);
if (buttonPeer != null)
{
peers.Add(buttonPeer);
}
buttonPeer = FrameworkElementAutomationPeer.CreatePeerForElement(OwningCalendar.MonthControl.NextButton);
if (buttonPeer != null)
{
peers.Add(buttonPeer);
}
// Step 2: Add Calendar Buttons depending on the Calendar.DisplayMode
DateTime date;
DateTimeAutomationPeer peer;
foreach (UIElement child in this.OwningGrid.Children)
{
int childRow = (int)child.GetValue(Grid.RowProperty);
// first row is day titles
if (OwningCalendar.DisplayMode == CalendarMode.Month && childRow == 0)
{
AutomationPeer dayTitlePeer = UIElementAutomationPeer.CreatePeerForElement(child);
if (dayTitlePeer != null)
{
peers.Add(dayTitlePeer);
}
}
else
{
Button owningButton = child as Button;
if (owningButton != null && owningButton.DataContext is DateTime)
{
date = (DateTime)owningButton.DataContext;
peer = GetOrCreateDateTimeAutomationPeer(date, OwningCalendar.DisplayMode, /*addParentInfo*/ false);
peers.Add(peer);
DateTimeCalendarModePair key = new DateTimeCalendarModePair(date, OwningCalendar.DisplayMode);
newChildren.Add(key, peer);
}
}
}
DateTimePeers = newChildren;
return(peers);
}
public FrameworkElementAutomationPeer(FrameworkElement owner)
{
if (owner == null)
{
throw new ArgumentNullException("owner");
}
this.owner = owner;
isKeyboardFocusable = null;
// Default Automation events
owner.SizeChanged += (o, s) => {
Point location = GetLocation(owner);
RaisePropertyChangedEvent(AutomationElementIdentifiers.BoundingRectangleProperty,
new Rect(0, 0, s.PreviousSize.Width, s.PreviousSize.Height),
new Rect(location.X, location.Y, s.NewSize.Width, s.NewSize.Height));
};
owner.UIAVisibilityChanged += (o, e) => {
IAutomationCacheProperty cachedProperty
= GetCachedProperty(AutomationElementIdentifiers.BoundingRectangleProperty);
Rect newValue = GetBoundingRectangle();
RaisePropertyChangedEvent(AutomationElementIdentifiers.BoundingRectangleProperty,
cachedProperty.OldValue,
newValue);
RaiseIsKeyboardFocusableEvent();
bool isOffscreen = IsOffscreen();
RaisePropertyChangedEvent(AutomationElementIdentifiers.IsOffscreenProperty,
!isOffscreen,
isOffscreen);
};
Control control = owner as Control;
if (control != null)
{
control.IsEnabledChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.IsEnabledProperty,
e.OldValue,
e.NewValue);
RaiseIsKeyboardFocusableEvent();
};
control.UIAIsTabStopChanged += (o, e) => {
RaiseIsKeyboardFocusableEvent();
};
// StructureChanged
ContentControl contentControl = control as ContentControl;
if (contentControl != null)
{
contentControl.UIAContentChanged += OnContentChanged;
AddItemsChangedToPanel(contentControl.Content);
}
}
// SWA.AutomationProperties events
owner.AcceleratorKeyChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.AcceleratorKeyProperty,
e.OldValue,
e.NewValue);
};
owner.AccessKeyChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.AccessKeyProperty,
e.OldValue,
e.NewValue);
};
owner.AutomationIdChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.AutomationIdProperty,
e.OldValue,
e.NewValue);
};
owner.HelpTextChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.HelpTextProperty,
e.OldValue,
e.NewValue);
};
owner.IsRequiredForFormChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.IsRequiredForFormProperty,
e.OldValue,
e.NewValue);
};
owner.ItemStatusChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.ItemStatusProperty,
e.OldValue,
e.NewValue);
};
owner.ItemTypeChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.ItemTypeProperty,
e.OldValue,
e.NewValue);
};
// LabeledBy and Name properties are "special" because they somehow depend on each other.
owner.LabeledByChanged += (o, e) => {
RaisePropertyChangedEvent(AutomationElementIdentifiers.LabeledByProperty,
e.OldValue,
e.NewValue);
// Name property
UIElement labeledByOld = e.OldValue as UIElement;
if (labeledByOld != null)
{
FrameworkElementAutomationPeer peer
= FrameworkElementAutomationPeer.CreatePeerForElement(labeledByOld) as FrameworkElementAutomationPeer;
if (peer != null)
{
peer.NameChanged -= LabeledBy_NameChanged;
}
}
UIElement labeledByNew = e.NewValue as UIElement;
if (labeledByNew != null)
{
FrameworkElementAutomationPeer peer
= FrameworkElementAutomationPeer.CreatePeerForElement(labeledByNew) as FrameworkElementAutomationPeer;
if (peer != null)
{
peer.NameChanged += LabeledBy_NameChanged;
}
}
RaiseNameChanged();
};
owner.NameChanged += (o, e) => RaiseNameChanged();
}
