/// <summary>
/// Show error message.
/// </summary>
/// <param name="errorMessage">Message to show</param>
protected void OnError(string errorMessage)
{
ErrorOccurred = true;
CommonVsUtilities.ShowMessageBoxEx(
Resources.ErrorDialog_Title,
errorMessage,
MessageBoxButtons.OK,
MessageBoxDefaultButton.Button1,
MessageBoxIcon.Error);
}
/// <summary>
/// The DoOperation method begins the entire refactoring process.
/// The launch point for the refactoring operation must call this method.
/// overall flow
/// 1) UI flows input into an instance of a derivation of this class ... (ctor)
/// 2) The class may present its own UI (cancel)
/// 3) It creates an ContributorInput object
/// 4) Feeds it to the manager (or base class, depending on how you look at it)
/// 5) Proposals returned
/// 6) Merge proposals
/// 7) Preview UI (optional)kind
/// 8) Apply changes (or cancel or fail)
/// </summary>
public void DoOperation()
{
try
{
// If we don't have a ContributorInput yet, call OnGetContributorInput method to get ContributorInput for this operation.
if (ContributorInput == null)
{
ContributorInput = OnGetContributorInput();
}
if (ErrorOccurred || IsCancelled)
{
return;
}
if (ContributorInput == null)
{
// If not cancelled and contributorInput is null, throw exception.
throw new InvalidOperationException();
}
// Collect the list of files to change
FileChanges = GetFileChanges();
using (var cursor = WaitCursorHelper.NewWaitCursor())
{
if (HasPreviewWindow)
{
// Log names of files with error to event log
OnBeforeShowPreviewWindow();
if (ErrorOccurred || IsCancelled)
{
return;
}
if (PreviewData.ChangeList == null ||
PreviewData.ChangeList.Count == 0)
{
if (System.Windows.MessageBox.Show(
Resources.RefactoringOperation_NoChangesToPreview,
Resources.RefactoringOperation_NoChangesToPreviewTitle,
MessageBoxButton.OKCancel) == MessageBoxResult.OK)
{
ApplyChanges();
}
}
else
{
// After feed the preview window with PreviewChangesEngine, the engine will call back the ApplyChanges
// method in this Operation if user clicks Apply button.
ShowPreviewWindow();
}
}
else
{
// If no preview needed, apply the changes.
ApplyChanges();
}
}
if (ErrorOccurred || IsCancelled)
{
return;
}
}
catch (InvalidOperationException ex)
{
OnError(string.Format(CultureInfo.CurrentCulture, Resources.Error_FailedOperation, ex.Message));
}
catch (OperationCanceledException ex)
{
var errorMessage = ex.Message;
if (string.IsNullOrEmpty(errorMessage))
{
errorMessage = Resources.Dialog_CancelRefactoring;
}
CancelOperation();
CommonVsUtilities.ShowMessageBoxEx(
Resources.RefactorDialog_Title, errorMessage,
MessageBoxButtons.OK, MessageBoxDefaultButton.Button1, MessageBoxIcon.Error);
}
finally
{
UnregisterEvents();
}
}
