Thunderbird/NextGeneration/Collections: Difference between revisions

Thunderbird/NextGeneration/Collections (view source)

1,084 bytes added , 14 August 2017

Smart folders

Confirmed users

591

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 This is most the UI code necessary for basic message reading.
+If new messages arrive, or the user creates a new folder, the UI will be automatically updated. That's all in the above code, thanks to the collection classes and the generic list widget.
+== Smart folders ==
+Smart folders that update immediately when the underlying folders change are also possible with the Collection classes. Given that Collections can merge and subtract collections and dynamically update the result list of these operations, displaying a smart folder is just a matter of assigning the right collection to the message list.
+For example, to show all mails from 2 inboxes:
+ var globalInbox = mergeColl(account1.inbox.messages, account2.inbox.messages);
+ gMessageListE.showCollection(globalInbox);
+As new mails are incoming, they will immediately appear, without any further code.
+For example, to show all mails in AllMail that are *not* in Sent folder:
+ var incomingMails = allMailFolder.messages.subtract(sentFolder.messages);
+ gMessageListE.showCollection(incomingMails);
+As you move mails to the Sent folder, they will immediately disappear from the list.