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https://github.com/vale981/ement.el
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WIP
We need to compare event rooms, which aren't in the event structs, so this is more complicated than I realized.
This commit is contained in:
Adam Porter
parent
a5c96bd682
commit
94c626d985
2 changed files with 118 additions and 23 deletions
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@ -232,32 +232,35 @@ anything if session hasn't finished initial sync."
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(ement-room room)
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(ement-room-sender-in-left-margin nil)
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(ement-room-message-format-spec "%o%O » %S> %B%R%t")
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(ement-room-coalesce-events t)
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(ement-room-coalescable-events ement-notify-coalescable-events)
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(new-node (ement-room--insert-event event))
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(inhibit-read-only t)
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start end)
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(ewoc-goto-node ement-ewoc new-node)
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(setf start (point))
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(if-let (next-node (ewoc-next ement-ewoc new-node))
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(ewoc-goto-node ement-ewoc next-node)
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(goto-char (point-max)))
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(setf end (- (point) 2))
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(add-text-properties start end
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(list 'button '(t)
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'category 'default-button
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'action #'ement-notify-button-action
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'session session
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'room room
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'event event))
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;; Remove button face property.
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(alter-text-property start end 'face
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(lambda (face)
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(pcase face
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('button nil)
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((pred listp) (remq 'button face))
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(_ face))))
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(when ement-notify-prism-background
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(add-face-text-property start end (list :background (ement-notify--room-background-color room)
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:extend t))))))))
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;; (ewoc-goto-node ement-ewoc new-node)
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;; (setf start (point))
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;; (if-let (next-node (ewoc-next ement-ewoc new-node))
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;; (ewoc-goto-node ement-ewoc next-node)
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;; (goto-char (point-max)))
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;; (setf end (- (point) 2))
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;; (add-text-properties start end
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;; (list 'button '(t)
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;; 'category 'default-button
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;; 'action #'ement-notify-button-action
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;; 'session session
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;; 'room room
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;; 'event event))
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;; ;; Remove button face property.
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;; (alter-text-property start end 'face
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;; (lambda (face)
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;; (pcase face
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;; ('button nil)
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;; ((pred listp) (remq 'button face))
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;; (_ face))))
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;; (when ement-notify-prism-background
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;; (add-face-text-property start end (list :background (ement-notify--room-background-color room)
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;; :extend t)))
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)))))
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(defun ement-notify--log-buffer (name)
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"Return an Ement notifications buffer named NAME."
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@ -318,6 +321,41 @@ According to the room's notification configuration on the server."
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(when body
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(string-match-p (rx bow "@room" (or ":" (1+ blank))) body))))
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;;;; Coalescing
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(cl-defstruct ement-notify-room-events
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"Struct grouping room events.
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After adding events, use `ement-notify-room-events--update'
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to sort events and update other slots."
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(events nil :documentation "Message events, latest first.")
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(earliest-ts nil :documentation "Timestamp of earliest event.")
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(latest-ts nil :documentation "Timestamp of latest event."))
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(defun ement-notify-room-events--update (struct)
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"Return STRUCT having sorted its events and updated its slots."
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;; Like the room timeline slot, events are sorted latest-first.
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(setf (ement-notify-room-events-events struct) (cl-sort (ement-notify-room-events-events struct) #'>
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:key #'ement-event-origin-server-ts)
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(ement-notify-room-events-earliest-ts struct) (ement-event-origin-server-ts
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(car (last (ement-notify-room-events-events struct))))
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(ement-notify-room-events-latest-ts struct) (ement-event-origin-server-ts
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(car (ement-notify-room-events-events struct))))
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struct)
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(defvar ement-notify-coalescable-events
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(ement-alist "m.room.message" '( ement-notify-room-events ement-notify-room-events-p
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make-ement-notify-room-events ement-notify-room-events--update
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(lambda (a b)
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;; FIXME: We need to compare event rooms, which
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;; aren't in the event structs, so this is more
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;; complicated than I realized.
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(equal (ement-event-send )))))
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"Alist mapping event type strings to structs which may coalesce them.
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The value is a list of four symbols: the struct type, the struct
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predicate, the struct constructor, and a function which is called
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after changing the struct's value to update it in some way (which
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should be `identity' if nothing else).")
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;;;; Footer
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(provide 'ement-notify)
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@ -2677,6 +2677,18 @@ the first and last nodes in the buffer, respectively."
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;; Node B is an event with a different sender: insert header.
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(ewoc-enter-before ewoc node-b (ement-event-sender b-data))))))))
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(defvar ement-room-coalescable-events
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(ement-alist "m.room.member" '( ement-room-membership-events ement-room-membership-events-p
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make-ement-room-membership-events ement-room-membership-events--update
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(lambda (_a _b) t)))
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"Alist mapping event type strings to structs which may coalesce them.
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The value is a list of five symbols: the struct type, the struct
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predicate, the struct constructor, a function which is called
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after changing the struct's value to update it in some way (which
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should be `identity' if nothing else), and a predicate called
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with two event arguments, which should return non-nil if they may
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be coalesced.")
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(defun ement-room--coalesce-nodes (a b ewoc)
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"Try to coalesce events in nodes A and B in EWOC, returning non-nil if done."
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(cl-labels ((coalescable-p
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@ -2699,6 +2711,51 @@ the first and last nodes in the buffer, respectively."
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(ewoc-invalidate ewoc absorbing-node)
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t))))
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(defun ement-room--coalesce-nodes (a b ewoc)
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"Try to coalesce events in nodes A and B in EWOC, returning non-nil if done."
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(let (struct-type predicate constructor updater event-predicate)
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(cl-labels ((coalescable-type
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(node) (when (ement-event-p (ewoc-data node))
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(or (pcase-let ((`(,ty ,p ,c ,u, ep)
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(alist-get (ement-event-type (ewoc-data node))
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ement-room-coalescable-events nil nil #'equal)))
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(when ty
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(setf struct-type ty
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predicate p
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constructor c
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updater u
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event-predicate ep))
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(ement-event-type (ewoc-data node)))
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(cl-loop for (event-type . (ty p c u)) in ement-room-coalescable-events
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when (funcall p (ewoc-data node))
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do (setf struct-type ty
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predicate p
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constructor c
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updater u
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event-predicate ep)
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and return event-type)))))
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(let ((a-type (coalescable-type a))
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(b-type (coalescable-type b)))
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(when (and (equal a-type b-type) a-type b-type
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(funcall event-predicate (ewoc-data a) (ewoc-data b)))
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(let* ((absorbing-node (if (or (funcall predicate (ewoc-data a))
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(not (funcall predicate (ewoc-data b))))
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a b))
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(absorbed-node (if (eq absorbing-node a) b a)))
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(cl-typecase (ewoc-data absorbing-node)
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(ement-event
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;; Absorbing node is a plain event node: replace it with the coalescable node.
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(setf (ewoc-data absorbing-node)
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(funcall updater
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(funcall constructor :events (list (ewoc-data absorbing-node)))))))
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;; Add absorbed node's data to the absorbing node and update it, delete the
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;; absorbed node, and invalidate the absorbing node.
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(push (ewoc-data absorbed-node) (cl-struct-slot-value struct-type 'events (ewoc-data absorbing-node)))
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(funcall updater (ewoc-data absorbing-node))
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(ewoc-delete ewoc absorbed-node)
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(ewoc-invalidate ewoc absorbing-node)
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t))))))
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(defun ement-room--insert-event (event)
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"Insert EVENT into current buffer."
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(cl-labels ((format-event
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