private void ClosePane()
{
if (_isPaneClosing)
{
return;
}
var paneClosing = PaneClosing;
if (paneClosing != null)
{
var args = new SplitViewPaneClosingEventArgs();
paneClosing(this, args);
if (args.Cancel && IsPaneOpen)
{
return;
}
}
_isPaneClosing = true;
if (IsPaneOpen)
{
SetCurrentValue(IsPaneOpenProperty, false);
}
if (!UpdateDisplayModeState())
{
_isPaneClosing = false;
PaneClosed?.Invoke(this, null);
}
}
private void OnTogglePaneButton_Click(object sender, RoutedEventArgs e)
{
var closing = new NavigationViewPaneClosingEventArgs();
if (IsPaneOpen)
{
PaneClosing?.Invoke(this, closing);
if (closing.Cancel)
{
this.Log().DebugIfEnabled(() => "Close pane canceled");
return;
}
}
else
{
PaneOpening?.Invoke(this, null);
}
IsPaneOpen = !IsPaneOpen;
if (IsPaneOpen)
{
PaneOpened?.Invoke(this, null);
}
else
{
PaneClosed?.Invoke(this, null);
}
}
/// <summary>
/// DisplayModeStates
/// -----------------
/// Closed
/// ClosedCompactLeft
/// ClosedCompactRight
/// OpenOverlayLeft
/// OpenOverlayRight
/// OpenInlineLeft
/// OpenInlineRight
/// OpenCompactOverlayLeft
/// OpenCompactOverlayRight
/// </summary>
private void UpdateVisualStates(bool useTransitons)
{
string stateName = GetStateName();
if (!IsPaneOpen)
{
PaneClosing?.Invoke(this, new SplitViewPaneClosingEventArgs());
}
else
{
PaneOpening?.Invoke(this, null);
}
#if __IOS__
PatchInvalidFinalState(stateName);
#endif
VisualStateManager.GoToState(this, stateName, useTransitons);
if (!IsPaneOpen)
{
PaneClosed?.Invoke(this, null);
}
else
{
PaneOpened?.Invoke(this, null);
}
}
void SplitViewIsPaneOpenChanged(DependencyProperty dp)
{
// this can occur if the user resizes before it loads
if (_SecondaryButtonStackPanel == null)
{
return;
}
// secondary layout
if (SecondaryButtonOrientation.Equals(Orientation.Horizontal) && ShellSplitView.IsPaneOpen)
{
_SecondaryButtonStackPanel.Orientation = Orientation.Horizontal;
}
else
{
_SecondaryButtonStackPanel.Orientation = Orientation.Vertical;
}
// overall events
if (ShellSplitView.IsPaneOpen)
{
PaneOpened?.Invoke(ShellSplitView, EventArgs.Empty);
HamburgerButtonGridWidth = (ShellSplitView.DisplayMode == SplitViewDisplayMode.CompactInline) ? PaneWidth : squareWidth;
}
else
{
PaneClosed?.Invoke(ShellSplitView, EventArgs.Empty);
}
// this will keep the two properties in sync
if (IsOpen != ShellSplitView.IsPaneOpen)
{
IsOpen = ShellSplitView.IsPaneOpen;
}
}
protected virtual void OnIsPaneOpenChanged(bool newValue)
{
if (newValue)
{
OnVisualStateChanged();
}
else
{
if (PaneClosing != null)
{
SplitViewPaneClosingEventArgs args = new SplitViewPaneClosingEventArgs();
foreach (TypedEventHandler <SplitView, SplitViewPaneClosingEventArgs> handler in PaneClosing.GetInvocationList())
{
handler(this, args);
if (args.Cancel)
{
IsPaneOpen = true;
return;
}
}
}
OnVisualStateChanged();
PaneClosed?.Invoke(this, null);
}
}
private void RaisePaneOpenedOrClosedEvents()
{
// overall events
if (IsOpen)
{
PaneOpened?.Invoke(ShellSplitView, EventArgs.Empty);
}
else
{
PaneClosed?.Invoke(ShellSplitView, EventArgs.Empty);
}
}
public HamburgerMenu()
{
InitializeComponent();
if (Windows.ApplicationModel.DesignMode.DesignModeEnabled)
{
// nothing
}
else
{
PrimaryButtons = new ObservableItemCollection <HamburgerButtonInfo>();
SecondaryButtons = new ObservableItemCollection <HamburgerButtonInfo>();
KeyboardService.Instance.AfterWindowZGesture = () => { HamburgerCommand.Execute(null); };
ShellSplitView.RegisterPropertyChangedCallback(SplitView.IsPaneOpenProperty, (d, e) =>
{
// secondary layout
if (SecondaryButtonOrientation.Equals(Orientation.Horizontal) &&
ShellSplitView.IsPaneOpen)
{
_SecondaryButtonStackPanel.Orientation = Orientation.Horizontal;
}
else
{
_SecondaryButtonStackPanel.Orientation = Orientation.Vertical;
}
// overall events
if ((d as SplitView).IsPaneOpen)
{
PaneOpened?.Invoke(ShellSplitView, EventArgs.Empty);
PaneOpen?.Invoke(ShellSplitView, EventArgs.Empty);
}
else
{
PaneClosed?.Invoke(ShellSplitView, EventArgs.Empty);
}
});
ShellSplitView.RegisterPropertyChangedCallback(SplitView.DisplayModeProperty, (d, e) =>
{
DisplayMode = ShellSplitView.DisplayMode;
});
Loaded += (s, e) =>
{
var any = GetType().GetRuntimeProperties()
.Where(x => x.PropertyType == typeof(SolidColorBrush))
.Any(x => x.GetValue(this) != null);
if (!any)
{
// this is the default color if the user supplies none
AccentColor = Colors.DarkOrange;
}
};
}
}
private void OnDisplayModeStatesCurrentStateChanged(object sender, VisualStateChangedEventArgs e)
{
_isDisplayModeStateChanging = false;
if (_isPaneOpening)
{
_isPaneOpening = false;
PaneOpened?.Invoke(this, null);
}
else if (_isPaneClosing)
{
_isPaneClosing = false;
PaneClosed?.Invoke(this, null);
}
}
/// <summary>
/// DisplayModeStates
/// -----------------
/// Closed
/// ClosedCompactLeft
/// ClosedCompactRight
/// OpenOverlayLeft
/// OpenOverlayRight
/// OpenInlineLeft
/// OpenInlineRight
/// OpenCompactOverlayLeft
/// OpenCompactOverlayRight
/// </summary>
private void UpdateVisualStates(bool useTransitons)
{
string stateName = GetStateName();
if (!IsPaneOpen)
{
PaneClosing?.Invoke(this, new SplitViewPaneClosingEventArgs());
}
VisualStateManager.GoToState(this, stateName, useTransitons);
if (!IsPaneOpen)
{
PaneClosed?.Invoke(this, null);
}
}
private void ClosePane()
{
SplitViewPaneClosingEventArgs args = new SplitViewPaneClosingEventArgs();
PaneClosing?.Invoke(this, args);
if (args.Cancel)
{
if (DisplayMode == SplitViewDisplayMode.Overlay || DisplayMode == SplitViewDisplayMode.CompactOverlay)
{
IsPaneOpen = true;
return;
}
}
ChangeVisualState(true);
PaneClosed?.Invoke(this, EventArgs.Empty);
}
/// <summary>
/// Panel closed event
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
private void SplitView_PaneClosed(SplitView sender, object args)
{
AnimateTargetToHamburger();
PaneClosed?.Invoke(sender, args);
}
private void OnPaneClosed(object sender, EventArgs e) => PaneClosed?.Invoke(sender, e);
public HamburgerMenu()
{
InitializeComponent();
if (Windows.ApplicationModel.DesignMode.DesignModeEnabled)
{
// nothing
}
else
{
PrimaryButtons = new ObservableItemCollection <HamburgerButtonInfo>();
SecondaryButtons = new ObservableItemCollection <HamburgerButtonInfo>();
KeyboardService.Instance.AfterWindowZGesture = () => { HamburgerCommand.Execute(null); };
ShellSplitView.RegisterPropertyChangedCallback(SplitView.IsPaneOpenProperty, (d, e) =>
{
DebugWrite($"Current:{(d as SplitView).IsPaneOpen}");
// this can occur if the user resizes before it loads
if (_SecondaryButtonStackPanel == null)
{
return;
}
// secondary layout
if (SecondaryButtonOrientation.Equals(Orientation.Horizontal) &&
ShellSplitView.IsPaneOpen)
{
_SecondaryButtonStackPanel.Orientation = Orientation.Horizontal;
}
else
{
_SecondaryButtonStackPanel.Orientation = Orientation.Vertical;
}
// overall events
if ((d as SplitView).IsPaneOpen)
{
PaneOpened?.Invoke(ShellSplitView, EventArgs.Empty);
PaneOpen?.Invoke(ShellSplitView, EventArgs.Empty);
}
else
{
PaneClosed?.Invoke(ShellSplitView, EventArgs.Empty);
}
// this will keep the two properties in sync
if (!d.GetValue(e).Equals(IsOpen))
{
IsOpen = !IsOpen;
}
});
ShellSplitView.RegisterPropertyChangedCallback(SplitView.DisplayModeProperty, (d, e) =>
{
DebugWrite($"Current:{ShellSplitView.DisplayMode}");
// this will keep the two properties in sync
DisplayMode = ShellSplitView.DisplayMode;
});
Loaded += (s, e) =>
{
// look to see if any brush property has been set
var any = GetType().GetRuntimeProperties()
.Where(x => x.PropertyType == typeof(SolidColorBrush))
.Any(x => x.GetValue(this) != null);
// this is the default color if the user supplies none
if (!any)
{
AccentColor = (Color)Resources["SystemAccentColor"];
}
// in case the developer has defined zero buttons
if (NavButtonCount == 0)
{
_areNavButtonsLoaded = true;
}
};
}
}
/// <summary>
/// Raises the <see cref="PaneClosed"/> event.
/// </summary>
protected virtual void OnPaneClosed()
{
PaneClosed?.Invoke(this, EventArgs.Empty);
}
