public async Task <List <ConversationThread> > GetConversationsAsync(Scope scope, TimeSpan range, CancellationToken cancellationToken)
{
await CheckConnectedAsync();
SearchCondition condition = SearchCondition.Since(DateTime.Now - range);
string[] uids = await Client.SearchAsync(condition, uid : true);
List <ConversationThread> conversations = new List <ConversationThread>();
IList <MailMessage> messages;
if (uids.Length == 0)
{
messages = new MailMessage[0];
}
else
{
if (scope == Scope.HeadersAndBody || scope == Scope.Headers)
{
// TODO: Consider comma joined list of UIDs
messages = await Client.GetMessagesAsync(uids[0], uids[uids.Length - 1], scope);
}
else if (scope == Scope.HeadersAndMime)
{
messages = new List <MailMessage>();
IList <GmailMessageInfo> infos = await GetMessageIdsAsync(uids);
await GetEnvelopeAndStructureAsync(uids,
message =>
{
// Find the matching Ids
string messageId = message.GetMessageId();
GmailMessageInfo info = infos.First(i => i.MessageId.Equals(messageId));
message.SetLabels(info.Labels);
message.SetFlags(info.Flags);
message.Uid = info.Uid;
messages.Add(message);
return(Task.FromResult(0));
},
cancellationToken);
}
else
{
throw new NotSupportedException(scope.ToString());
}
}
// Group by thread ID
foreach (IGrouping <string, MailMessage> group in messages.GroupBy(message => message.GetThreadId()))
{
ConversationThread conversation = new ConversationThread(group.OrderByDescending(message => message.Date).ToList());
conversation.Messages.ForEach(message => FixUpLabels(message));
conversations.Add(conversation);
}
return(conversations.OrderByDescending(conversation => conversation.LatestDate).ToList());
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
Account account = App.AccountManager.GetCurrentAccount();
if (account != null)
{
Conversation = account.ActiveConversation;
GetLabelsAsync();
}
base.OnNavigatedTo(e);
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
Account account = App.AccountManager.GetCurrentAccount();
if (account != null)
{
Conversation = account.ActiveConversation;
if (Conversation == null)
{
// This happens after opening an attachment and then hitting back.
// TODO: Why do we lose app state after opening an attachment?
NavigationService.GoBack();
}
DataContext = null; // Force refresh after editing labels
DataContext = Conversation;
}
base.OnNavigatedTo(e);
}
public async Task<List<ConversationThread>> GetConversationsAsync(Scope scope, TimeSpan range, CancellationToken cancellationToken)
{
await CheckConnectedAsync();
SearchCondition condition = SearchCondition.Since(DateTime.Now - range);
string[] uids = await Client.SearchAsync(condition, uid: true);
List<ConversationThread> conversations = new List<ConversationThread>();
IList<MailMessage> messages;
if (uids.Length == 0)
{
messages = new MailMessage[0];
}
else
{
if (scope == Scope.HeadersAndBody || scope == Scope.Headers)
{
// TODO: Consider comma joined list of UIDs
messages = await Client.GetMessagesAsync(uids[0], uids[uids.Length - 1], scope);
}
else if (scope == Scope.HeadersAndMime)
{
messages = new List<MailMessage>();
IList<GmailMessageInfo> infos = await GetMessageIdsAsync(uids);
await GetEnvelopeAndStructureAsync(uids,
message =>
{
// Find the matching Ids
string messageId = message.GetMessageId();
GmailMessageInfo info = infos.First(i => i.MessageId.Equals(messageId));
message.SetLabels(info.Labels);
message.SetFlags(info.Flags);
message.Uid = info.Uid;
messages.Add(message);
return Task.FromResult(0);
},
cancellationToken);
}
else
{
throw new NotSupportedException(scope.ToString());
}
}
// Group by thread ID
foreach (IGrouping<string, MailMessage> group in messages.GroupBy(message => message.GetThreadId()))
{
ConversationThread conversation = new ConversationThread(group.OrderByDescending(message => message.Date).ToList());
conversation.Messages.ForEach(message => FixUpLabels(message));
conversations.Add(conversation);
}
return conversations.OrderByDescending(conversation => conversation.LatestDate).ToList();
}
public virtual async Task SelectConversationAsync(ConversationThread conversation)
{
ActiveConversation = conversation;
await SetReadStatusAsync(conversation.Messages, true);
// Sync full conversation body, from disk or network.
foreach (MailMessage message in conversation.Messages)
{
ObjectWHeaders view = message.GetHtmlView();
await LazyLoadBodyPartAsync(message, view);
}
}