public static void ReleaseInstance(WaitDialog instance)
{
if (_sharedInstance == null || _sharedInstance != instance)
{
return;
}
_sharedInstance.CloseDialog();
_isInstanceAcquired = false;
}
private void StartWaitDialogHelper(string caption, string waitMessage, string progressText,
int delayToShowDialog, bool isCancellable, bool isProgressVisible,
int currentStepCount = 0, int totalStepCount = -1, IWaitDialogCallback callback = null)
{
if (!ThreadHelper.CheckAccess())
{
ThreadHelper.Generic.Invoke(() =>
{
StartWaitDialogHelper(caption, waitMessage, progressText, delayToShowDialog,
isCancellable, isProgressVisible, currentStepCount, totalStepCount, callback);
});
}
else
{
ThreadHelper.ThrowIfNotOnUIThread(nameof(StartWaitDialogHelper));
lock (_syncObject)
{
if (_instance == null)
{
_instance = WaitDialog.AcquireInstance();
}
if (_instance == null)
{
_isDialogStarted = true;
}
else
{
_isUiSuppressed = IsUiSuppressed();
if (!_isUiSuppressed)
{
try
{
var args = new DialogShowArguments(caption, waitMessage, progressText, isCancellable,
isProgressVisible, currentStepCount, totalStepCount)
{
AppMainWindowHandle = GetPrimaryWindowHandle()
};
_instance.Show(TimeSpan.FromSeconds(delayToShowDialog), args, callback);
_isDialogStarted = true;
}
catch
{
WaitDialog.ReleaseInstance(_instance);
_instance = null;
throw;
}
}
else
{
_isDialogStarted = true;
}
}
}
}
}
private void ReleaseDialogInstance()
{
lock (_syncObject)
{
if (_instance == null)
{
return;
}
WaitDialog.ReleaseInstance(_instance);
_instance = null;
}
}
public static WaitDialog AcquireInstance()
{
ThreadHelper.ThrowIfNotOnUIThread(nameof(AcquireInstance));
if (_isInstanceAcquired)
{
return(null);
}
if (_sharedInstance == null)
{
_sharedInstance = new WaitDialog(LauncherServiceProvider.Instance);
}
_isInstanceAcquired = true;
++_currentInstanceId;
return(_sharedInstance);
}
public CancelHandler(WaitDialog owner)
{
_owner = owner;
}