static FileOperationResult ObservedLoadHandleException(Exception e, FileOperationDelegate loadFile, FileName fileName, string message, FileErrorPolicy policy)
{
message = message + Environment.NewLine + Environment.NewLine + e.Message;
var messageService = ServiceSingleton.GetRequiredService <IMessageService>();
switch (policy)
{
case FileErrorPolicy.Inform:
messageService.InformSaveError(fileName, message, "${res:FileUtilityService.ErrorWhileLoading}", e);
break;
case FileErrorPolicy.ProvideAlternative:
ChooseSaveErrorResult r = messageService.ChooseSaveError(fileName, message, "${res:FileUtilityService.ErrorWhileLoading}", e, false);
if (r.IsRetry)
{
return(ObservedLoad(loadFile, fileName, message, policy));
}
else if (r.IsIgnore)
{
return(FileOperationResult.Failed);
}
break;
}
return(FileOperationResult.Failed);
}
// Observe LOAD functions
public static FileOperationResult ObservedLoad(FileOperationDelegate loadFile, string fileName, string message, FileErrorPolicy policy)
{
try {
loadFile();
OnFileLoaded(new FileNameEventArgs(fileName));
return(FileOperationResult.OK);
} catch (Exception e) {
switch (policy)
{
case FileErrorPolicy.Inform:
ServiceManager.MessageService.InformSaveError(fileName, message, "${res:FileUtilityService.ErrorWhileLoading}", e);
break;
case FileErrorPolicy.ProvideAlternative:
ChooseSaveErrorResult r = ServiceManager.MessageService.ChooseSaveError(fileName, message, "${res:FileUtilityService.ErrorWhileLoading}", e, false);
if (r.IsRetry)
{
return(ObservedLoad(loadFile, fileName, message, policy));
}
else if (r.IsIgnore)
{
return(FileOperationResult.Failed);
}
break;
}
}
return(FileOperationResult.Failed);
}
static FileOperationResult ObservedSaveHandleError(Exception e, NamedFileOperationDelegate saveFileAs, string fileName, string message, FileErrorPolicy policy)
{
switch (policy)
{
case FileErrorPolicy.Inform:
ServiceManager.Instance.MessageService.InformSaveError(fileName, message, "${res:FileUtilityService.ErrorWhileSaving}", e);
break;
case FileErrorPolicy.ProvideAlternative:
ChooseSaveErrorResult r = ServiceManager.Instance.MessageService.ChooseSaveError(fileName, message, "${res:FileUtilityService.ErrorWhileSaving}", e, true);
if (r.IsRetry)
{
return(ObservedSave(saveFileAs, fileName, message, policy));
}
else if (r.IsIgnore)
{
return(FileOperationResult.Failed);
}
else if (r.IsSaveAlternative)
{
return(ObservedSave(saveFileAs, r.AlternativeFileName, message, policy));
}
break;
}
return(FileOperationResult.Failed);
}
// Observe SAVE functions
public static FileOperationResult ObservedSave(FileOperationDelegate saveFile, string fileName, string message, FileErrorPolicy policy)
{
System.Diagnostics.Debug.Assert(IsValidPath(fileName));
try {
saveFile();
RaiseFileSaved(new FileNameEventArgs(fileName));
return(FileOperationResult.OK);
} catch (Exception e) {
switch (policy)
{
case FileErrorPolicy.Inform:
ServiceManager.MessageService.InformSaveError(fileName, message, "${res:FileUtilityService.ErrorWhileSaving}", e);
break;
case FileErrorPolicy.ProvideAlternative:
ChooseSaveErrorResult r = ServiceManager.MessageService.ChooseSaveError(fileName, message, "${res:FileUtilityService.ErrorWhileSaving}", e, false);
if (r.IsRetry)
{
return(ObservedSave(saveFile, fileName, message, policy));
}
else if (r.IsIgnore)
{
return(FileOperationResult.Failed);
}
break;
}
}
return(FileOperationResult.Failed);
}
