diff options
Diffstat (limited to 'modules/org-agenda-config.el')
| -rw-r--r-- | modules/org-agenda-config.el | 136 |
1 files changed, 119 insertions, 17 deletions
diff --git a/modules/org-agenda-config.el b/modules/org-agenda-config.el index 3cff9d95..20714d5d 100644 --- a/modules/org-agenda-config.el +++ b/modules/org-agenda-config.el @@ -20,21 +20,25 @@ ;; keep normal agenda opens fast. ;;; Code: +(require 'seq) (require 'user-constants) (require 'system-lib) (require 'cj-cache-lib) -(defcustom cj/org-agenda-window-height 0.75 - "Fraction of the selected frame used for the org agenda window." - :type 'number - :group 'org-agenda) - (defun cj/--org-agenda-display-rule () - "Return the display-buffer rule for the org agenda buffer." - `("\\*Org Agenda\\*" - (display-buffer-reuse-mode-window display-buffer-below-selected) - (dedicated . t) - (window-height . ,cj/org-agenda-window-height))) + "Return the display-buffer rule for the org agenda buffer. +`display-buffer-full-frame' gives the agenda the whole frame rather than a +fraction of it, so the view is a surface you read rather than a strip you +squint at. `org-agenda-restore-windows-after-quit' (set below) is what +makes that non-destructive: quitting the agenda puts the previous window +layout back. + +The window is deliberately not `dedicated': with the agenda owning the only +window, a dedicated one leaves `org-agenda-switch-to' (RET on an item) with +nowhere to put the file, and it splits or opens a frame instead of simply +replacing the agenda." + '("\\*Org Agenda\\*" + (display-buffer-reuse-mode-window display-buffer-full-frame))) ;; Load debug functions if enabled (when (or (eq cj/debug-modules t) @@ -65,7 +69,12 @@ ;; that reaches `org-agenda-files' another way. (setq org-agenda-skip-unavailable-files t) - ;; display the agenda from the bottom + ;; The agenda takes the whole frame, so quitting it has to give the previous + ;; window layout back -- otherwise every F8 costs the arrangement of windows + ;; that were up when it was pressed. + (setq org-agenda-restore-windows-after-quit t) + + ;; display the agenda across the whole frame (add-to-list 'display-buffer-alist (cj/--org-agenda-display-rule)) @@ -75,6 +84,89 @@ (local-set-key (kbd "s-<left>") #'org-agenda-todo-previousset)))) +;; ---------------------------- Agenda Auto-Refresh ---------------------------- +;; A full-frame agenda is meant to be left up and glanced at, so it has to stay +;; current on its own: the now-line moves, and calendar-sync writes new events +;; into the agenda files behind it. One repeating timer rebuilds whichever +;; agenda is actually on screen. + +(defcustom cj/org-agenda-refresh-seconds 300 + "Cadence, in seconds, of the org-agenda auto-refresh. +The timer fires on wall-clock multiples of this value, so the default 300 +refreshes on the :00/:05/:10 marks rather than five minutes after whenever +the agenda happened to open." + :type 'integer + :group 'org-agenda) + +(defvar cj/--org-agenda-refresh-timer nil + "The repeating auto-refresh timer, or nil when auto-refresh is stopped.") + +(declare-function org-agenda-redo "org-agenda" (&optional all)) + +(defun cj/--org-agenda-seconds-to-next-mark (time period) + "Return seconds from TIME to the next wall-clock multiple of PERIOD. +TIME is any Emacs time value; PERIOD is a positive number of seconds, so +300 gives the :00/:05 marks. A TIME landing exactly on a mark returns a +full PERIOD rather than zero, so the timer never fires twice back to back." + (unless (and (numberp period) (> period 0)) + (error "Refresh period must be a positive number of seconds: %S" period)) + (let ((remainder (mod (floor (float-time time)) period))) + (if (zerop remainder) period (- period remainder)))) + +(defun cj/--org-agenda-refresh-window () + "Return a live window displaying an org-agenda buffer, or nil. +Only a visible agenda is worth rebuilding: an off-screen one costs the same +full rescan and shows it to nobody, and it will be rebuilt on the next tick +after it comes back into view." + (seq-find (lambda (window) + (with-current-buffer (window-buffer window) + (derived-mode-p 'org-agenda-mode))) + (window-list-1 nil 'nomini 'visible))) + +(defun cj/--org-agenda-auto-refresh () + "Rebuild the on-screen agenda, leaving point on the line it was on. +Does nothing when no agenda is displayed. + +The body is wrapped in `condition-case' deliberately. This runs from a +repeating timer, where an unguarded signal resignals on every tick and +buries Emacs in identical backtraces -- the failure mode that made +calendar-sync's hourly timer unusable. A failed rebuild is logged and the +timer keeps its cadence." + (condition-case err + (when-let* ((window (cj/--org-agenda-refresh-window))) + (with-selected-window window + (let ((line (line-number-at-pos))) + (org-agenda-redo) + (goto-char (point-min)) + (forward-line (1- line))))) + (error + (cj/log-silently + (format "org-agenda auto-refresh failed: %s" (error-message-string err)))))) + +(defun cj/org-agenda-auto-refresh-start () + "Start the wall-clock-aligned agenda auto-refresh timer. +Cancels any existing timer first, so re-loading this module into a running +daemon replaces the ticker rather than stacking a second one." + (interactive) + (cj/org-agenda-auto-refresh-stop) + (setq cj/--org-agenda-refresh-timer + (run-at-time (cj/--org-agenda-seconds-to-next-mark + (current-time) cj/org-agenda-refresh-seconds) + cj/org-agenda-refresh-seconds + #'cj/--org-agenda-auto-refresh))) + +(defun cj/org-agenda-auto-refresh-stop () + "Cancel the agenda auto-refresh timer. A no-op when already stopped." + (interactive) + (when (timerp cj/--org-agenda-refresh-timer) + (cancel-timer cj/--org-agenda-refresh-timer)) + (setq cj/--org-agenda-refresh-timer nil)) + +;; Arm at load. Skipped under `noninteractive' so a batch test run doesn't +;; carry a live repeating timer it has nothing to refresh. +(unless noninteractive + (cj/org-agenda-auto-refresh-start)) + ;; ----------------------- Project-name Category Override --------------------- ;; The default `org-category' for a todo.org buffer is "todo" (the filename ;; without extension), which renders as "todo:" in every agenda `%c' column @@ -107,17 +199,27 @@ nil so the org default category applies." (defun cj/--org-set-todo-category () "Set buffer-local `org-category' to the project name for a todo.org buffer. -Runs from `org-mode-hook'. Only overrides when `org-category' is still -the default-from-filename (\"todo\"), so an explicit `#+CATEGORY:' in -the file keeps precedence." +Runs from `org-mode-hook'. Only overrides when nothing has set +`org-category', so an explicit `#+CATEGORY:' in the file keeps precedence. + +The nil test is the whole guard, and it took a while to get right. Org does +not assign the filename fallback to `org-category': with no `#+CATEGORY:' the +variable stays nil and `org-get-category' derives \"todo\" at read time. An +earlier version guarded on `(string= \"todo\" org-category)', which is a state +org never produces, so this hook did nothing from the day it shipped." (when (and buffer-file-name (boundp 'org-category) - (stringp org-category) - (string= "todo" org-category)) + (null org-category)) (when-let* ((project (cj/--org-todo-category-from-file buffer-file-name))) (setq-local org-category project)))) -(add-hook 'org-mode-hook #'cj/--org-set-todo-category) +;; Depth -100 so this runs FIRST, and it is load-bearing. `org-get-category' +;; resolves a deferred `:CATEGORY' that the org-element cache then holds, so any +;; hook that reads the category before this one freezes "todo" in that cache and +;; leaves the `setq-local' below inert -- `org-category' reads correct while the +;; agenda still shows "todo". `add-hook' prepends by default, so without the +;; depth every hook added later would run earlier, and three already do. +(add-hook 'org-mode-hook #'cj/--org-set-todo-category -100) ;; ------------------------ Org Agenda File List Cache ------------------------- ;; Cache agenda file list to avoid expensive directory scanning on every view. |