Inhibit childframe display when moving point (#21)

(only in at-point mode)

eldoc-box.el

@@ -125,6 +125,9 @@ Run inside the new buffer.")
 Each function runs inside the new frame and receives the main frame as argument.")
 
 ;;;;; Function
+(defvar eldoc-box--inhibit-childframe nil
+  "If non-nil, inhibit display of childframe.")
+
 (defvar eldoc-box--frame nil ;; A backstage variable
   "The frame to display doc.")
 
@@ -293,15 +296,35 @@ FRAME is the childframe, WINDOW is the primary window."
     ;; move position
     (set-frame-position frame (car pos) (cdr pos))))
 
+(defvar eldoc-box--inhibit-childframe-timer nil
+  "When this timer is on, inhibit childframe display.
+Intended for follow-cursor to disable display when moving cursor.")
+
+(defun eldoc-box--inhibit-childframe-for (sec)
+  "Inhibit display of childframe for SEC seconds."
+  (when eldoc-box--inhibit-childframe-timer
+    (cancel-timer eldoc-box--inhibit-childframe-timer))
+  (eldoc-box-quit-frame)
+  (setq eldoc-box--inhibit-childframe t
+        eldoc-box--inhibit-childframe-timer
+        (run-with-timer sec nil
+                        (lambda ()
+                          (setq eldoc-box--inhibit-childframe nil)))))
+
 (defun eldoc-box--follow-cursor ()
   "Make childframe follow cursor in at-point mode."
+  (if (not (equal this-command #'self-insert-command))
+      (eldoc-box--inhibit-childframe-for 0.2)
     (when (frame-live-p eldoc-box--frame)
       (eldoc-box--update-childframe-geometry
-     eldoc-box--frame (frame-selected-window eldoc-box--frame))))
+       eldoc-box--frame (frame-selected-window eldoc-box--frame)))))
 
 (defun eldoc-box--get-frame (buffer)
   "Return a childframe displaying BUFFER.
 Checkout `lsp-ui-doc--make-frame', `lsp-ui-doc--move-frame'."
+  (if eldoc-box--inhibit-childframe
+      ;; if inhibit display, do nothing
+      eldoc-box--frame
     (let* ((after-make-frame-functions nil)
            (before-make-frame-hook nil)
            (parameter (append eldoc-box-frame-parameters
@@ -328,7 +351,7 @@ Checkout `lsp-ui-doc--make-frame', `lsp-ui-doc--move-frame'."
       (eldoc-box--update-childframe-geometry frame window)
       (setq eldoc-box--frame frame)
       (run-hook-with-args 'eldoc-box-frame-hook main-frame)
-    (make-frame-visible frame)))
+      (make-frame-visible frame))))
 
 
 ;;;;; ElDoc