private async void SaveClick(object sender, EventArgs e)
{
// Filter out special labels that don't match mailbox names.
List <string> labelsBefore = GmailExtensions.GetNonSpecialLabels(Conversation.Labels);
List <string> labelsAfter = LabelList.SelectedItems.Cast <LabelInfo>()
.Select(info => info.Name).ToList();
Account account = App.AccountManager.GetCurrentAccount();
List <string> addTo = new List <string>();
List <string> removeFrom = new List <string>();
// Diff before and after. For new labels, add that label.
// For old labels, remove that label.
SyncUtilities.CompareLists(labelsBefore, labelsAfter, input => input,
(before, after) => { }, // Match, do nothing
(before) => removeFrom.Add(before),
(after) => addTo.Add(after) // Added
);
// Do additions before removals. Additions will fail if you first remove the current label because you'll
// have deleted the message from the current mailbox.
foreach (string label in addTo)
{
await account.AddLabelAsync(Conversation.Messages, label); // Added
}
foreach (string label in removeFrom)
{
await account.RemoveLabelAsync(Conversation.Messages, label); // Removed
}
NavigationService.GoBack();
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
// TODO: For the mail list view, filter out the current mailbox name. I.e. don't show the Inbox label when in the Inbox.
// Do show the current mailbox label when in the conversation view.
List <string> labels = (List <string>)value;
// Includes normal labels and special ones too. Filter out known special labels
// "\\Sent" Family "\\Important" "\\Starred" Geeky
// TODO: Label color
return(string.Join(", ", GmailExtensions.GetNonSpecialLabels(labels)));
}
private async void GetLabelsAsync()
{
var account = App.AccountManager.GetCurrentAccount();
if (account == null)
{
throw new InvalidOperationException("How did you get to this page without an account?");
}
List <LabelInfo> labels = await account.GetLabelsAsync();
List <string> activeLabels = GmailExtensions.GetNonSpecialLabels(Conversation.Labels);
LabelList.ItemsSource = labels;
// Select all currently enabled labels
// TODO: Special case the current label, and maybe the INBOX?
foreach (var label in labels.Where(label => activeLabels.Contains(label.Name)))
{
LabelList.SelectedItems.Add(label);
}
}
