// <summary>
// Basic ctor
// </summary>
// <param name="container"></param>
public PropertyContainerAutomationPeer(PropertyContainer container)
: base(container)
{
if (container == null)
{
throw FxTrace.Exception.ArgumentNull("container");
}
_container = container;
}
private void DisassociateContainerEventHandlers(PropertyContainer container) {
if (_attachedToContainerEvents) {
container.DependencyPropertyChanged -= new DependencyPropertyChangedEventHandler(OnPropertyContainerDependencyPropertyChanged);
_attachedToContainerEvents = false;
}
}
private void AssociateContainerEventHandlers(PropertyContainer container) {
if (!_attachedToContainerEvents) {
container.DependencyPropertyChanged += new DependencyPropertyChangedEventHandler(OnPropertyContainerDependencyPropertyChanged);
_attachedToContainerEvents = true;
}
}
/// <summary>
/// Called when any DependencyProperties of this Control change. If you override
/// this method, call the base implementation first to preserve the desired functionality.
/// </summary>
/// <param name="e">Event args</param>
protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e) {
// Check to see if this control has changed (or gained or lost) its owning PropertyContainer.
// If so, it may need to update its state / appearance accordingly
if (e.Property == PropertyContainer.OwningPropertyContainerProperty) {
PropertyContainer oldContainer = (PropertyContainer)e.OldValue;
PropertyContainer newContainer = (PropertyContainer)e.NewValue;
_owningContainer = newContainer;
if (oldContainer != null)
DisassociateContainerEventHandlers(oldContainer);
if (newContainer != null)
AssociateContainerEventHandlers(newContainer);
this.CoerceValue(TargetEditModeProperty);
}
base.OnPropertyChanged(e);
}
private void OnOwningPropertyContainerChanged(PropertyContainer oldValue, PropertyContainer newValue)
{
if (oldValue != null)
{
PropertySelection.ClearSelectionStop(oldValue);
PropertySelection.ClearIsSelectionStopDoubleClickTarget(oldValue);
}
if (newValue != null)
{
PropertySelection.SetSelectionStop(newValue, this);
PropertySelection.SetIsSelectionStopDoubleClickTarget(newValue, true);
}
}
private static object OnCoerceEditModeProperty(DependencyObject obj, object value)
{
EditModeSwitchButton theThis = (EditModeSwitchButton)obj;
// [....] to the owning PropertyContainer only if requested to do so
if (!theThis.SyncModeToOwningContainer)
{
return(value);
}
// Do we have an owning PropertyContainer?
if (theThis._owningContainer == null)
{
return(value);
}
PropertyContainerEditMode newMode;
PropertyContainer owningContainer = theThis._owningContainer;
switch (owningContainer.ActiveEditMode)
{
case PropertyContainerEditMode.Inline:
// when clicked, have this button switch to extended popup mode
// or dialog mode (dialog takes precedence)
if (owningContainer.SupportsEditMode(PropertyContainerEditMode.Dialog))
{
newMode = PropertyContainerEditMode.Dialog;
}
else if (owningContainer.SupportsEditMode(PropertyContainerEditMode.ExtendedPopup))
{
newMode = PropertyContainerEditMode.ExtendedPopup;
}
else
{
newMode = PropertyContainerEditMode.Inline;
}
break;
case PropertyContainerEditMode.ExtendedPopup:
// when clicked, have this button switch to extended pinned mode
newMode = PropertyContainerEditMode.ExtendedPinned;
break;
case PropertyContainerEditMode.ExtendedPinned:
// when clicked, have this button switch to inline mode
newMode = PropertyContainerEditMode.Inline;
break;
case PropertyContainerEditMode.Dialog:
// do nothing
newMode = theThis.TargetEditMode;
break;
default:
Debug.Fail(string.Format(
System.Globalization.CultureInfo.CurrentCulture,
"ModeSwitchControl does not yet support PropertyContainerEditMode '{0}'.",
owningContainer.ActiveEditMode.ToString()));
newMode = (PropertyContainerEditMode)value;
break;
}
return(newMode);
}
// <summary>
// Private method to unhook the ValueChanged event.
// </summary>
// <param name="expander">Expander</param>
// <param name="valueChangedEvent">ValueChanged event</param>
private static void UnHookFocusEvents(PropertyContainer container, EventHandler valueChangedEvent)
{
if (container != null)
{
DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(PropertySelection.IsSelectedProperty, typeof(PropertyContainer));
if (dpd != null)
{
dpd.RemoveValueChanged(container, valueChangedEvent);
}
}
}
/// <summary>
/// Setter for attached, inherited DP that can be used by UI elements of PropertyValueEditors
/// to gain access to their parent PropertyContainer.
/// </summary>
/// <param name="dependencyObject">The DO to set the property on</param>
/// <param name="value">The Owning PropertyContainer</param>
public static void SetOwningPropertyContainer(DependencyObject dependencyObject, PropertyContainer value)
{
if (dependencyObject == null)
{
throw FxTrace.Exception.ArgumentNull("dependencyObject");
}
dependencyObject.SetValue(PropertyContainer.OwningPropertyContainerProperty, value);
}
// Updates the ControlTemplate of this control based on the currently ActiveEditMode
private static void UpdateControlTemplate(PropertyContainer container)
{
PropertyContainerEditMode editMode = container.ActiveEditMode;
ControlTemplate newTemplate = null;
switch (editMode)
{
case PropertyContainerEditMode.Inline:
newTemplate = container.InlineRowTemplate;
break;
case PropertyContainerEditMode.ExtendedPopup:
newTemplate = container.ExtendedPopupRowTemplate;
break;
case PropertyContainerEditMode.ExtendedPinned:
newTemplate = container.ExtendedPinnedRowTemplate;
break;
case PropertyContainerEditMode.Dialog:
// In dialog case, just keep the same value
return;
default:
Debug.Fail(
string.Format(
System.Globalization.CultureInfo.CurrentCulture,
"PropertyContainerEditMode does not yet support PropertyContainerEditMode '{0}'.",
editMode.ToString()));
newTemplate = container.Template;
break;
}
if (newTemplate != container.Template)
container.Template = newTemplate;
}
/// <summary>
/// Setter for attached, inherited DP that can be used by UI elements of PropertyValueEditors
/// to gain access to their parent PropertyContainer.
/// </summary>
/// <param name="dependencyObject">The DO to set the property on</param>
/// <param name="value">The Owning PropertyContainer</param>
public static void SetOwningPropertyContainer(DependencyObject dependencyObject, PropertyContainer value)
{
if (dependencyObject == null)
throw FxTrace.Exception.ArgumentNull("dependencyObject");
dependencyObject.SetValue(PropertyContainer.OwningPropertyContainerProperty, value);
}
