public ClosingState CheckForChanges()
{
IFlowSharpCanvasService canvasService = ServiceManager.Get <IFlowSharpCanvasService>();
bool changed = canvasService.Controllers.Any(c => GetSavePoint(c) != c.UndoStack.UndoStackSize);
ClosingState ret = ClosingState.NoChanges;
if (changed)
{
DialogResult res = MessageBox.Show("Do you wish to save changes to this drawing?", "Save Changes", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
switch (res)
{
case DialogResult.Cancel:
ret = ClosingState.CancelClose;
break;
case DialogResult.Yes:
ret = ClosingState.SaveChanges;
break;
case DialogResult.No:
ret = ClosingState.ExitWithoutSaving;
break;
}
}
return(ret);
}
public CloseWindowController(IAppWindow win, IIOPortHandler[] portHandlers)
{
_win = win;
_state = ClosingState.NoClosing;
_portHandlers = portHandlers;
_portHandlerClosedStates = new Dictionary<IIOPortHandler, bool>();
foreach (IIOPortHandler handler in portHandlers)
_portHandlerClosedStates[handler] = false;
}
public StateBankAccount()
{
confirmingIdentityState = new ConfirmingIdentityState(this);
activeState = new ActiveState(this);
frozenState = new FrozenState(this);
closingState = new ClosingState(this);
closedState = new ClosedState(this);
state = confirmingIdentityState;
balance = 0.0;
}
/// <summary>
/// Return true if operation should be cancelled.
/// </summary>
protected bool CheckForChanges()
{
bool ret = true;
ClosingState state = serviceManager.Get <IFlowSharpEditService>().CheckForChanges();
if (state == ClosingState.SaveChanges)
{
ret = !SaveOrSaveAs(); // override because of possible cancel in save operation.
}
else if (state != ClosingState.CancelClose)
{
BaseController canvasController = serviceManager.Get <IFlowSharpCanvasService>().ActiveController;
canvasController.UndoStack.ClearStacks(); // Prevents second "are you sure" when exiting with Ctrl+X
ret = false;
}
return(ret);
}
protected void OnFormClosing(object sender, FormClosingEventArgs e)
{
ClosingState state = ServiceManager.Get <IFlowSharpEditService>().CheckForChanges();
if (state == ClosingState.SaveChanges)
{
if (!ServiceManager.Get <IFlowSharpMenuService>().SaveOrSaveAs())
{
e.Cancel = true;
}
}
else
{
e.Cancel = state == ClosingState.CancelClose;
}
if (!e.Cancel)
{
dockingService.SaveLayout("layout.xml");
}
}
protected void Close(Exception exception)
{
if (!this.TryClose())
{
return;
}
var closingState = new ClosingState();
if (exception != null)
{
closingState.RegisterException(exception);
}
// Closing logic should be executed on the loop thread
if (this.Worker != null && Thread.CurrentThread.ManagedThreadId != this.BaseSocket.ThreadId)
{
this.Worker.EnqueueFinalJob(this.CloseCallback, closingState);
}
else
{
this.CloseCallback(closingState);
}
}
public void closePortHandlers()
{
_state = ClosingState.ClosingResources;
foreach (IIOPortHandler handler in _portHandlers)
handler.terminate();
}