private static void safeFlushOfCurrentlyDeferred()
{
if (m_ViewModelOfDeferredChange != null && m_PropertyNameOfDeferredChange != null)
{
m_ViewModelOfDeferredChange.NotifyPropertyChanged(m_PropertyNameOfDeferredChange);
m_ViewModelOfDeferredChange = null;
m_PropertyNameOfDeferredChange = null;
}
}
private void HValueChanged(ObservableBase sender, ValueChangedEventArgs <string> e)
{
var bSys = IsSystemUser();
if (bSys != SystemAccount)
{
SystemAccount.Value = bSys;
}
if (!IsPasswordEnabled)
{
ShowPassword.Value = false;
}
}
private static void onDeferringDelayTick(System.Object sender, System.EventArgs e)
{
System.Diagnostics.Debug.Assert(m_ViewModelOfDeferredChange != null);
System.Diagnostics.Debug.Assert(m_PropertyNameOfDeferredChange != null);
if (m_DeferringTimer.IsEnabled)
{
safeFlushOfCurrentlyDeferred();
}
m_ViewModelOfDeferredChange = null;
m_PropertyNameOfDeferredChange = null;
m_DeferringTimer.Stop();
}
private void prepareModalPanel(Window panel, ObservableBase panelViewModel)
{
if (panel == null || panelViewModel == null)
{
return;
}
panel.Owner = this; // prevent tossing this window to background by Windows
panel.DataContext = panelViewModel;
panel.IsVisibleChanged += new DependencyPropertyChangedEventHandler(onAnyPanel_IsVisibleChanged);
// Make sure the HWND is created for SettingsPanel, so that we'll be able to position it before showing it
var hwndHelper = new WindowInteropHelper(panel);
hwndHelper.EnsureHandle();
}
/// <summary>
///! \brief Notify listeners (but only after a delay) that the specified property has changed
///! \param propertyName Name of the property the change of which should be propagated with some delay
/// </summary>
protected void NotifyPropertyChangedDeferred(System.String propertyName)
{
if (m_DeferringTimer == null)
{
m_DeferringTimer = new System.Windows.Threading.DispatcherTimer();
m_DeferringTimer.Interval = new System.TimeSpan(0, 0, 0, 0, 400);
m_DeferringTimer.Tick += new System.EventHandler(onDeferringDelayTick);
}
// Normally, we need just to extend the delay for the same property by restarting the timer.
// But if it's a new request, then Flush the currently delayed property and delay the new one
if (m_ViewModelOfDeferredChange != this || m_PropertyNameOfDeferredChange != propertyName)
{
if (m_DeferringTimer.IsEnabled)
safeFlushOfCurrentlyDeferred();
m_ViewModelOfDeferredChange = this;
m_PropertyNameOfDeferredChange = propertyName;
}
m_DeferringTimer.Stop();
m_DeferringTimer.Start();
}
private static void safeFlushOfCurrentlyDeferred()
{
if (m_ViewModelOfDeferredChange != null && m_PropertyNameOfDeferredChange != null)
{
m_ViewModelOfDeferredChange.NotifyPropertyChanged(m_PropertyNameOfDeferredChange);
m_ViewModelOfDeferredChange = null;
m_PropertyNameOfDeferredChange = null;
}
}
private static void onDeferringDelayTick(System.Object sender, System.EventArgs e)
{
System.Diagnostics.Debug.Assert(m_ViewModelOfDeferredChange != null);
System.Diagnostics.Debug.Assert(m_PropertyNameOfDeferredChange != null);
if (m_DeferringTimer.IsEnabled)
safeFlushOfCurrentlyDeferred();
m_ViewModelOfDeferredChange = null;
m_PropertyNameOfDeferredChange = null;
m_DeferringTimer.Stop();
}
private void HSystemAccountChanged(ObservableBase sender, ValueChangedEventArgs <bool> e)
{
Username.Value = SystemAccount ? Environment.MachineName + "\\SYSTEM" : CurrentUser();
}
