/// <summary>
/// Show a Common Win32 Dialog but with workaround for special case when
/// shown from an already modal dialog. Without woraround the CommonDialog
/// gets shown as a modeless dialog.
/// http://social.msdn.microsoft.com/Forums/en/wpf/thread/48ac4e21-ee16-4e64-b883-98b6c99ee1fa </summary>
/// <param name="dialog">CommonDialog to show</param>
/// <returns>Dialog result</returns>
public static bool?ShowCommonDialogWorkaround(this CommonDialog dialog)
{
var mainWindow = Application.Current.MainWindow;
var currentWindow = DialogUtils.GetActiveWindow();
bool?result;
try
{
Application.Current.MainWindow = currentWindow;
HookWindowActivatedEvents();
_isDialogOpen = true;
result = dialog.ShowDialog();
}
finally
{
_isDialogOpen = false;
UnhookWindowsActivatedEvents();
Application.Current.MainWindow = mainWindow;
}
return(result);
}
/// <summary>
/// Show specified dialog, setting its owner to the active window</summary>
/// <param name="dialog">Dialog to display</param>
/// <returns>Nullable Boolean signifying how window was closed by user</returns>
public static bool?ShowParentedDialog(this Window dialog)
{
dialog.Owner = DialogUtils.GetActiveWindow();
return(dialog.ShowDialog());
}
/// <summary>
/// Extension method to show specified dialog, setting its owner to the active window</summary>
/// <param name="dialog">Dialog to display</param>
public static void ShowParented(this Window dialog)
{
dialog.Owner = DialogUtils.GetActiveWindow();
dialog.Show();
}
// Implements interactive portions of Find(), but is called from a separate thread to
// avoid recursion due to the dialog boxes.
private static bool?QueryUser(Uri uri, Uri suggestedUri, out Uri newUri, SelectFileFilterOptions options)
{
// If the user cancels a sub-dialog box, reopen the first dialog box.
while (true)
{
// Ask the user what we should do.
// There are a two fewer options and slightly reorganized dialog box if there
// is no suggested replacement for the missing file.
var vm = new FindFileDialogViewModel()
{
Action = s_lastAction,
OriginalPath = uri.LocalPath,
SuggestedPath = suggestedUri != null ? suggestedUri.LocalPath : null,
};
bool?res = DialogUtils.ShowDialogWithViewModel <FindFileDialog>(vm);
s_lastAction = res == false ? FindFileAction.Quit : vm.Action;
switch (s_lastAction)
{
case FindFileAction.AcceptSuggestion:
newUri = suggestedUri;
return(true);
case FindFileAction.AcceptAllSuggestions:
newUri = suggestedUri;
return(true);
case FindFileAction.SearchDirectory:
if (SearchForFile(uri, out newUri, true))
{
return(true);
}
continue;
case FindFileAction.SearchDirectoryForAll:
if (SearchForFile(uri, out newUri, false))
{
return(true);
}
continue;
case FindFileAction.UserSpecify:
if (UserFindFile(uri, out newUri, options))
{
return(true);
}
continue;
case FindFileAction.Ignore:
newUri = uri;
return(false);
case FindFileAction.IgnoreAll:
newUri = uri;
return(false);
case FindFileAction.Quit:
newUri = uri;
return(null);
}
throw new InvalidOperationException("unhandled FindFileAction enum");
}
}
