branch: externals/eglot
commit 348917660aab0ecef794561160fd95a0fdf820dd
Author: João Távora <joaotav...@gmail.com>
Commit: João Távora <joaotav...@gmail.com>
Add a mode-line construct and some minor fanciness
---
eglot.el | 126 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------
1 file changed, 112 insertions(+), 14 deletions(-)
diff --git a/eglot.el b/eglot.el
index 166f23c..92c1216 100644
--- a/eglot.el
+++ b/eglot.el
@@ -64,6 +64,9 @@
(eglot--define-process-var eglot--message-mark nil
"Point where next unread message starts")
+(eglot--define-process-var eglot--short-name nil
+ "A short name")
+
(eglot--define-process-var eglot--expected-bytes nil
"How many bytes declared by server")
@@ -92,25 +95,29 @@
(and timeout-fn
`((cl-function ,timeout-fn)))))
-(defun eglot--command ()
- (cdr (assoc major-mode eglot-executables)))
+(defun eglot--command (&optional errorp)
+ (let ((probe (cdr (assoc major-mode eglot-executables))))
+ (unless (or (not errorp)
+ probe)
+ (eglot--error "Don't know how to start EGLOT for %s buffers"
+ major-mode))
+ probe))
-(defun eglot-new-process (&optional interactive)
+(defun eglot-new-process (&optional _interactive)
"Starts a new EGLOT process and initializes it"
(interactive (list t))
(let ((project (project-current))
- (command (eglot--command)))
- (unless command (eglot--error "Cannot work without an LSP executable"))
+ (command (eglot--command 'errorp)))
(unless project (eglot--error "Cannot work without a current project!"))
(let ((current-process (eglot--current-process)))
(when (and current-process
(process-live-p current-process))
(eglot-quit-server current-process 'sync)))
- (let ((good-name
- (format "EGLOT server (%s)"
- (file-name-base
- (directory-file-name
- (car (project-roots (project-current))))))))
+ (let* ((short-name (file-name-base
+ (directory-file-name
+ (car (project-roots (project-current))))))
+ (good-name
+ (format "EGLOT server (%s)" short-name)))
(with-current-buffer (get-buffer-create
(format "*%s inferior*" good-name))
(let* ((proc
@@ -123,6 +130,7 @@
:stderr (get-buffer-create (format "*%s stderr*"
good-name))))
(inhibit-read-only t))
+ (setf (eglot--short-name proc) short-name)
(puthash (project-current) proc eglot--processes-by-project)
(erase-buffer)
(let ((marker (point-marker)))
@@ -133,9 +141,7 @@
(let ((inhibit-read-only t))
(insert
(format "\n-----------------------------------\n"))))
- (eglot--protocol-initialize proc)
- (when interactive
- (display-buffer (eglot-events-buffer proc))))))))
+ (eglot--protocol-initialize proc))))))
(defun eglot-quit-server (process &optional sync)
(interactive (list (eglot--current-process)))
@@ -246,7 +252,7 @@
buffer))
buffer))))
(when interactive
- (pop-to-buffer buffer))
+ (display-buffer buffer))
buffer))
(defun eglot--log-event (proc type message)
@@ -295,6 +301,10 @@
(defun eglot--next-request-id ()
(setq eglot--next-request-id (1+ eglot--next-request-id)))
+(defun eglot-forget-pending-continuations (process)
+ (interactive (eglot--current-process))
+ (clrhash (eglot--pending-continuations process)))
+
(defun eglot--call-with-request (process
async-p
method
@@ -389,5 +399,93 @@
(apply #'format format args)
:warning))
+
+
+;;; Mode line
+;;;
+
+
+(defface eglot-mode-line
+ '((t (:inherit font-lock-constant-face :weight bold)))
+ "Face for package-name in EGLOT's mode line."
+ :group 'eglot)
+
+(define-minor-mode eglot-mode
+ "Minor mode for buffers where EGLOT is possible")
+
+(defvar eglot-menu)
+
+(defvar eglot-mode-map (make-sparse-keymap))
+
+(easy-menu-define eglot-menu eglot-mode-map "SLY"
+ `("EGLOT" ))
+
+(defvar eglot--mode-line-format
+ `(:eval (eglot--mode-line-format)))
+
+(put 'eglot--mode-line-format 'risky-local-variable t)
+
+(defun eglot--mode-line-format ()
+ (let* ((proc (eglot--current-process))
+ (name (and proc
+ (process-live-p proc)
+ (eglot--short-name proc)))
+ (pending (and proc
+ (hash-table-count
+ (eglot--pending-continuations proc))))
+ (format-number (lambda (n) (cond ((and n (not (zerop n)))
+ (format "%d" n))
+ (n "-")
+ (t "*")))))
+ (append
+ `((:propertize "eglot"
+ face eglot-mode-line
+ keymap ,(let ((map (make-sparse-keymap)))
+ (define-key map [mode-line down-mouse-1]
+ eglot-menu)
+ map)
+ mouse-face mode-line-highlight
+ help-echo "mouse-1: pop-up EGLOT menu"
+ ))
+ (if name
+ `(" "
+ (:propertize
+ ,name
+ face eglot-mode-line
+ keymap ,(let ((map (make-sparse-keymap)))
+ (define-key map [mode-line mouse-1] 'eglot-events-buffer)
+ (define-key map [mode-line mouse-2] 'eglot-quit-server)
+ (define-key map [mode-line mouse-3] 'eglot-new-process)
+ map)
+ mouse-face mode-line-highlight
+ help-echo ,(concat "mouse-1: events buffer\n"
+ "mouse-2: quit server\n"
+ "mouse-3: new process"))
+ "/"
+ (:propertize
+ ,(funcall format-number pending)
+ help-echo ,(if name
+ (format
+ "%s pending events outgoing\n%s"
+ pending
+ (concat "mouse-1: go to events buffer"
+ "mouse-3: forget pending continuations"))
+ "No current connection")
+ mouse-face mode-line-highlight
+ face ,(cond ((and pending (cl-plusp pending))
+ 'warning)
+ (t
+ 'eglot-mode-line))
+ keymap ,(let ((map (make-sparse-keymap)))
+ (define-key map [mode-line mouse-1]
+ 'eglot-events-buffer)
+ (define-key map [mode-line mouse-3]
+ 'eglot-forget-pending-continuations)
+ map)))))))
+
+(add-to-list 'mode-line-misc-info
+ `(t
+ (" [" eglot--mode-line-format "] ")))
+
(provide 'eglot)
;;; eglot.el ends here
