void SetSecondaryCommandsToCloseWhenExecuted()
{
RevokeAndClear(m_secondaryButtonClickRevokerByElementMap);
RevokeAndClear(m_secondaryToggleButtonCheckedRevokerByElementMap);
RevokeAndClear(m_secondaryToggleButtonUncheckedRevokerByElementMap);
RoutedEventHandler closeFlyoutFunc = delegate { Hide(); };
for (int i = 0; i < SecondaryCommands.Count; i++)
{
var element = SecondaryCommands[i];
var button = element as AppBarButton;
var toggleButton = element as AppBarToggleButton;
if (button != null)
{
m_secondaryButtonClickRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ButtonBase.ClickEvent, closeFlyoutFunc);
}
else if (toggleButton != null)
{
m_secondaryToggleButtonCheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ToggleButton.CheckedEvent, closeFlyoutFunc);
m_secondaryToggleButtonUncheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ToggleButton.UncheckedEvent, closeFlyoutFunc);
}
}
}
public CommandBarFlyout()
{
PrimaryCommands = new ObservableCollection <ICommandBarElement>();
SecondaryCommands = new ObservableCollection <ICommandBarElement>();
PrimaryCommands.CollectionChanged += (object sender, NotifyCollectionChangedEventArgs args) =>
{
if (m_commandBar != null)
{
SharedHelpers.ForwardCollectionChange((ObservableCollection <ICommandBarElement>)sender, m_commandBar.PrimaryCommands, args);
}
};
SecondaryCommands.CollectionChanged += (object sender, NotifyCollectionChangedEventArgs args) =>
{
var commandBar = m_commandBar;
if (commandBar != null)
{
var source = (ObservableCollection <ICommandBarElement>)sender;
SharedHelpers.ForwardCollectionChange(source, commandBar.SecondaryCommands, args);
// We want to ensure that any interaction with secondary items causes the CommandBarFlyout
// to close, so we'll attach a Click handler to any buttons and Checked/Unchecked handlers
// to any toggle buttons that we get and close the flyout when they're invoked.
// The only exception is buttons with flyouts - in that case, clicking on the button
// will just open the flyout rather than executing an action, so we don't want that to
// do anything.
RoutedEventHandler closeFlyoutFunc = delegate { Hide(); };
// TODO
switch (args.Action)
{
case NotifyCollectionChangedAction.Replace:
{
var element = (ICommandBarElement)args.NewItems[0];
var oldElement = (ICommandBarElement)args.OldItems[0];
var button = element as AppBarButton;
var toggleButton = element as AppBarToggleButton;
RevokeAndRemove(m_secondaryButtonClickRevokerByElementMap, oldElement);
RevokeAndRemove(m_secondaryToggleButtonCheckedRevokerByElementMap, oldElement);
RevokeAndRemove(m_secondaryToggleButtonUncheckedRevokerByElementMap, oldElement);
if (button != null && button.Flyout == null)
{
m_secondaryButtonClickRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ButtonBase.ClickEvent, closeFlyoutFunc);
RevokeAndRemove(m_secondaryToggleButtonCheckedRevokerByElementMap, element);
RevokeAndRemove(m_secondaryToggleButtonUncheckedRevokerByElementMap, element);
}
else if (toggleButton != null)
{
RevokeAndRemove(m_secondaryButtonClickRevokerByElementMap, element);
m_secondaryToggleButtonCheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ToggleButton.CheckedEvent, closeFlyoutFunc);
m_secondaryToggleButtonUncheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ToggleButton.UncheckedEvent, closeFlyoutFunc);
}
else
{
RevokeAndRemove(m_secondaryButtonClickRevokerByElementMap, element);
RevokeAndRemove(m_secondaryToggleButtonCheckedRevokerByElementMap, element);
RevokeAndRemove(m_secondaryToggleButtonUncheckedRevokerByElementMap, element);
}
break;
}
case NotifyCollectionChangedAction.Add:
{
var element = (ICommandBarElement)args.NewItems[0];
var button = element as AppBarButton;
var toggleButton = element as AppBarToggleButton;
if (button != null && button.Flyout == null)
{
m_secondaryButtonClickRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ButtonBase.ClickEvent, closeFlyoutFunc);
}
else if (toggleButton != null)
{
m_secondaryToggleButtonCheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ToggleButton.CheckedEvent, closeFlyoutFunc);
m_secondaryToggleButtonUncheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
button, ToggleButton.UncheckedEvent, closeFlyoutFunc);
}
break;
}
case NotifyCollectionChangedAction.Remove:
{
var element = (ICommandBarElement)args.OldItems[0];
RevokeAndRemove(m_secondaryButtonClickRevokerByElementMap, element);
RevokeAndRemove(m_secondaryToggleButtonCheckedRevokerByElementMap, element);
RevokeAndRemove(m_secondaryToggleButtonUncheckedRevokerByElementMap, element);
break;
}
case NotifyCollectionChangedAction.Move:
break;
case NotifyCollectionChangedAction.Reset:
SetSecondaryCommandsToCloseWhenExecuted();
break;
default:
Debug.Assert(false);
break;
}
}
};
Opening += delegate
{
AreOpenCloseAnimationsEnabled = true;
if (m_commandBar.HasOpenAnimation())
{
InternalPopup.SuppressFadeAnimation = true;
}
else
{
InternalPopup.SuppressFadeAnimation = false;
}
if (ShowMode == FlyoutShowMode.Standard)
{
m_commandBar.IsOpen = true;
}
};
Opened += delegate
{
if (m_commandBar != null)
{
if (m_commandBar.HasOpenAnimation())
{
m_commandBar.PlayOpenAnimation();
}
else
{
AreOpenCloseAnimationsEnabled = false;
}
}
};
Closing += delegate
{
var commandBar = m_commandBar;
if (commandBar != null)
{
if (!m_isClosingAfterCloseAnimation && commandBar.HasCloseAnimation())
{
//args.Cancel(true);
commandBar.PlayCloseAnimation(() =>
{
m_isClosingAfterCloseAnimation = true;
Hide();
m_isClosingAfterCloseAnimation = false;
});
commandBar.IsOpen = false;
}
//CommandBarFlyoutCommandBar.Closed will be called when
//clicking the more (...) button, we clear the translations
//here
commandBar.ClearShadow();
}
};
Closed += delegate
{
if (m_commandBar != null)
{
if (m_commandBar.IsOpen)
{
m_commandBar.IsOpen = false;
}
}
};
}