The picker sorted folders A-Z by path, with Inbox first, so a folder
dragged into place in the sidebar turned up somewhere else when moving
mail. It now walks the tree in compareFolders order, the sidebar's
order with every folder expanded: Inbox, then the saved order, then
the special folders, then A-Z, with subfolders under their parent.
treeOrder lives beside compareFolders. A folder the walk from the top
cannot reach is appended rather than dropped, so it stays pickable as
it was before.
Closes#1
The folder tree ignored sortOrder: Inbox came first, then everything
A–Z, so Sent ended up among ordinary folders. The tree now lists Inbox,
then any order the user has chosen, then the other special folders
(Drafts, Sent, Archive, Junk, Trash), then the rest A–Z. Stalwart gives
every folder sortOrder 0 until someone orders it, so an existing
sidebar changes once, to that default.
Dropping a folder on the top or bottom quarter of a row puts it above or
below that row, with a line to show where it will land. Dropping on the
middle still nests it. Special folders can now be dragged, to be
reordered but never nested; on those, the whole row reorders by the
nearer half. The folder menu gains Move up and Move down, for the
keyboard and touch. Inbox stays first.
A reorder numbers the level 10 apart and writes only the folders whose
number changes, in one Mailbox/set. The order is saved on the server,
so it follows the account to every device and to other JMAP clients.
No new strings: Move up and Move down were already translated.
Fixes#402
jcoffey-dev
jcoffey