/// <summary>
/// Close the group popup.
/// </summary>
/// <param name="selectedGroup">The selected group.</param>
/// <param name="raiseEvent">Should the GroupPopupClosing event be raised.</param>
/// <returns>True if the event was not raised or if it was raised and e.Handled is false.</returns>
private bool ClosePopup(object selectedGroup, bool raiseEvent)
{
if (raiseEvent)
{
GroupViewClosingEventArgs args = null;
SafeRaise.Raise(GroupViewClosing, this, () => { return(args = new GroupViewClosingEventArgs(_itemsControl, selectedGroup)); });
if (args != null && args.Cancel)
{
return(false);
}
}
if (_groupSelectorPopup != null)
{
RestoreSystemState();
_groupSelectorPopup.IsOpen = false;
DetachFromPageEvents();
_groupSelectorPopup.Child = null;
_border = null;
_itemsControl = null;
_groupSelectorPopup = null;
}
return(true);
}
private void OpenPopup()
{
SaveSystemState(false, false);
BuildPopup();
AttachToPageEvents();
_groupSelectorPopup.IsOpen = true;
// This has to happen eventually anyway, and this forces the ItemsControl to
// expand it's template, populate it's items etc.
UpdateLayout();
SafeRaise.Raise(GroupViewOpened, this, () => { return(new GroupViewOpenedEventArgs(_itemsControl)); });
}
/// <summary>
/// This method does all the necessary work to raise a gesture event. It sets the orginal source, does the routing,
/// handles Handled, and only creates the event args if they are needed.
/// </summary>
/// <typeparam name="T">This is the type of event args that will be raised.</typeparam>
/// <param name="eventGetter">Gets the specific event to raise.</param>
/// <param name="argsGetter">Lazy creator function for the event args.</param>
/// <param name="releaseMouseCapture">Indicates whether the mouse capture should be released </param>
private static void RaiseGestureEvent <T>(
Func <GestureListener, EventHandler <T> > eventGetter,
Func <T> argsGetter, bool releaseMouseCapture)
where T : GestureEventArgs
{
T args = null;
FrameworkElement originalSource = null;
bool handled = false;
foreach (FrameworkElement element in _elements)
{
if (releaseMouseCapture)
{
element.ReleaseMouseCapture();
}
if (!handled)
{
if (originalSource == null)
{
originalSource = element;
}
GestureListener helper = GestureService.GetGestureListenerInternal(element, false);
if (helper != null)
{
SafeRaise.Raise(eventGetter(helper), element, () =>
{
if (args == null)
{
args = argsGetter();
args.OriginalSource = originalSource;
}
return(args);
});
}
if (args != null && args.Handled == true)
{
handled = true;
}
}
}
}
/// <summary>
/// Mirrors the
/// <see cref="E:System.Windows.Controls.Primitives.ToggleButton.Click"/>
/// event.
/// </summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event information.</param>
private void OnClick(object sender, RoutedEventArgs e)
{
SafeRaise.Raise(Click, this, e);
}
/// <summary>
/// Mirrors the
/// <see cref="E:System.Windows.Controls.Primitives.ToggleButton.Indeterminate"/>
/// event.
/// </summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event information.</param>
private void OnIndeterminate(object sender, RoutedEventArgs e)
{
IsChecked = null;
SafeRaise.Raise(Indeterminate, this, e);
}
/// <summary>
/// Mirrors the
/// <see cref="E:System.Windows.Controls.Primitives.ToggleButton.Unchecked"/>
/// event.
/// </summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event information.</param>
private void OnUnchecked(object sender, RoutedEventArgs e)
{
IsChecked = false;
SafeRaise.Raise(Unchecked, this, e);
}
/// <summary>
/// Mirrors the
/// <see cref="E:System.Windows.Controls.Primitives.ToggleButton.Checked"/>
/// event.
/// </summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event information.</param>
private void OnChecked(object sender, RoutedEventArgs e)
{
IsChecked = true;
SafeRaise.Raise(Checked, this, e);
}
private void popup_Opened(object sender, EventArgs e)
{
SafeRaise.Raise(GroupViewOpened, this, () => { return(new GroupViewOpenedEventArgs(_itemsControl)); });
}
/// <summary>
/// Mirrors the
/// <see cref="E:System.Windows.Controls.Primitives.ToggleButton.Click"/>
/// event.
/// </summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event information.</param>
private void ClickHandler(object sender, RoutedEventArgs e)
{
SafeRaise.Raise(Click, this, e);
}
