private static void HandleContextMenuOpeningStatic(object sender, ContextMenuEventArgs e)
{
DependencyObject dObjSender = sender as DependencyObject;
IInputElement inputElementSender = sender as IInputElement;
if (dObjSender != null && inputElementSender != null)
{
ContextMenu contextMenu = (ContextMenu)(dObjSender.GetValue(FrameworkElement.ContextMenuProperty));
if (contextMenu == null)
{
TextSelectionSettings settings = TextSelection.GetSettings(dObjSender);
IEnumerable <RoutedUICommand> commands = null;
if (settings != null && settings.HasContextMenuCommands)
{
commands = settings.ContextMenuCommands;
}
else
{
commands = TextSelectionSettings.DefaultContextMenuCommands;
}
contextMenu = CreateContextMenu(inputElementSender, commands);
if (contextMenu != null)
{
// We are repacing a null ContextMenu with our built from scratch ContextMenu.
// Mark the event as handled so that the built in context menu service does not
// try to open the null Context menu and we can open our built from scratch menu
// ourselves
e.Handled = true;
RoutedEventHandler handleContextMenuClosed = null;
handleContextMenuClosed = (closedSender, closedArgs) =>
{
inputElementSender.RemoveHandler(FrameworkElement.ContextMenuClosingEvent, handleContextMenuClosed);
dObjSender.ClearValue(FrameworkElement.ContextMenuProperty);
};
inputElementSender.AddHandler(FrameworkElement.ContextMenuClosingEvent, handleContextMenuClosed);
dObjSender.SetValue(FrameworkElement.ContextMenuProperty, contextMenu);
contextMenu.IsOpen = true;
}
}
}
}
private TextSelectionSettings EnsureSettings()
{
TextSelectionSettings result;
if (this.textBlock != null)
{
result = TextSelection.GetSettings(this.textBlock);
if (result == null)
{
result = new TextSelectionSettings();
TextSelection.SetSettings(this.textBlock, result);
}
}
else
{
result = new TextSelectionSettings();
}
return(result);
}
public static void SetSettings(DependencyObject obj, TextSelectionSettings value)
{
obj.SetValue(SettingsProperty, value);
}
protected virtual void OnPrepareHighlightAdorner(HighlightAdorner adorner)
{
// TODO: figure out how to create a binding to "(TextSelection.Settings).HighlightFillProperty" in code
TextSelectionSettings settings = EnsureSettings();
BindingBase isFocusedBinding = new Binding()
{
Path = new PropertyPath(FrameworkElement.IsFocusedProperty),
Source = this.textBlock,
Mode = BindingMode.OneWay
};
adorner.SetBinding(
HighlightAdorner.FillProperty,
new MultiBinding()
{
Bindings =
{
isFocusedBinding,
new Binding()
{
Path = new PropertyPath(TextSelectionSettings.HighlightFillProperty),
Source = settings,
Mode = BindingMode.OneWay
},
new Binding()
{
Path = new PropertyPath(TextSelectionSettings.InactiveHighlightFillProperty),
Source = settings,
Mode = BindingMode.OneWay
}
},
Mode = BindingMode.OneWay,
Converter = ToggleMultiConverter.Default
}
);
adorner.SetBinding(
HighlightAdorner.StrokeProperty,
new MultiBinding()
{
Bindings =
{
isFocusedBinding,
new Binding()
{
Path = new PropertyPath(TextSelectionSettings.HighlightStrokeProperty),
Source = settings,
Mode = BindingMode.OneWay
},
new Binding()
{
Path = new PropertyPath(TextSelectionSettings.InactiveHighlightStrokeProperty),
Source = settings,
Mode = BindingMode.OneWay
}
},
Mode = BindingMode.OneWay,
Converter = ToggleMultiConverter.Default
}
);
}
