(viper-non-hook-settings): Handle mouse clicks in describe-key and

describe-key-briefly advice a little better.

1 files changed, 36 insertions, 4 deletions

diff --git a/lisp/emulation/viper.el b/lisp/emulation/viper.el
index ddd37b16cc2..67ec3660c65 100644
--- a/lisp/emulation/viper.el
+++ b/lisp/emulation/viper.el
@@ -1027,14 +1027,46 @@ It also can't undo some Viper settings."
 
   (defadvice describe-key (before viper-describe-key-ad protect activate)
     "Force to read key via `viper-read-key-sequence'."
-    (interactive (list (viper-read-key-sequence "Describe key: "))
-                 ))
+    (interactive (let (key)
+                   (setq key (viper-read-key-sequence
+                              "Describe key (or click or menu item): "))
+                   (list key
+                         (prefix-numeric-value current-prefix-arg)
+                         ;; If KEY is a down-event, read also the
+                         ;; corresponding up-event.
+                         (and (vectorp key)
+                              (let ((last-idx (1- (length key))))
+                                (and (eventp (aref key last-idx))
+                                     (memq 'down (event-modifiers
+                                                  (aref key last-idx)))))
+                              (or (and (eventp (aref key 0))
+                                       (memq 'down (event-modifiers
+                                                    (aref key 0)))
+                                       ;; For the C-down-mouse-2 popup
+                                       ;; menu, there is no subsequent up-event.
+                                       (= (length key) 1))
+                                  (and (> (length key) 1)
+                                       (eventp (aref key 1))
+                                       (memq 'down (event-modifiers (aref key 1)))))
+                              (read-event))))))
 
   (defadvice describe-key-briefly
     (before viper-describe-key-briefly-ad protect activate)
     "Force to read key via `viper-read-key-sequence'."
-    (interactive (list (viper-read-key-sequence "Describe key briefly: "))))
-
+    (interactive (let (key)
+                   (setq key (viper-read-key-sequence
+                              "Describe key (or click or menu item): "))
+                   ;; If KEY is a down-event, read and discard the
+                   ;; corresponding up-event.
+                   (and (vectorp key)
+                        (let ((last-idx (1- (length key))))
+                          (and (eventp (aref key last-idx))
+                               (memq 'down (event-modifiers (aref key last-idx)))))
+                        (read-event))
+                   (list key
+                         (if current-prefix-arg
+                             (prefix-numeric-value current-prefix-arg))
+                         1))))
 
   (defadvice find-file (before viper-add-suffix-advice activate)
     "Use `read-file-name' for reading arguments."