Make expanding/collapsing signatures and citations local to them

[notmuch] / notmuch.el

diff --git a/notmuch.el b/notmuch.el
index a5474158929857710129ed6b6b455c568a5fdc0e..763c85fffe7971cdf011299315274e7072db6bea 100644 (file)
--- a/notmuch.el
+++ b/notmuch.el
@@ -477,6 +477,14 @@ which this thread was originally shown."
        (if last
            (notmuch-show-archive-thread))))))
 
+(defun notmuch-toggle-invisible-action (cite-button)
+  (let ((invis-spec (button-get button 'invisibility-spec)))
+        (if (invisible-p invis-spec)
+            (remove-from-invisibility-spec invis-spec)
+          (add-to-invisibility-spec invis-spec)
+          ))
+  (goto-char (button-end cite-button)))
+
 (defun notmuch-show-markup-citations-region (beg end depth)
   (goto-char beg)
   (beginning-of-line)
@@ -488,25 +496,51 @@ which this thread was originally shown."
          (progn
            (while (looking-at citation)
              (forward-line))
-           (let ((overlay (make-overlay beg-sub (point))))
-             (overlay-put overlay 'invisible 'notmuch-show-citation)
-             (overlay-put overlay 'before-string
-                          (concat indent
-                                  "[" (number-to-string (count-lines beg-sub (point)))
-                                  "-line citation. Press 'c' to show.]\n")))))
+           (let ((overlay (make-overlay beg-sub (point)))
+                  (invis-spec (make-symbol "notmuch-citation-region")))
+              (add-to-invisibility-spec invis-spec)
+             (overlay-put overlay 'invisible invis-spec)
+              (let (
+                    (p (point))
+                    (cite-button-text
+                     (concat "["  (number-to-string (count-lines beg-sub (point)))
+                             "-line citation.]"))
+                    )
+                (goto-char (- beg-sub 1))
+                (insert (concat "\n" indent))
+                (let ((cite-button (insert-button cite-button-text)))
+                  (button-put cite-button 'invisibility-spec invis-spec)
+                  (button-put cite-button 'action 'notmuch-toggle-invisible-action)
+                  (button-put cite-button 'help-echo
+                              "mouse-2, RET: Show citation")
+
+                  )
+                (insert "\n")
+                (goto-char (+ (length cite-button-text) p))
+              ))))
       (move-to-column depth)
       (if (looking-at notmuch-show-signature-regexp)
          (let ((sig-lines (- (count-lines beg-sub end) 1)))
            (if (<= sig-lines notmuch-show-signature-lines-max)
                (progn
-                 (overlay-put (make-overlay beg-sub end)
-                              'invisible 'notmuch-show-signature)
-                 (overlay-put (make-overlay beg (- beg-sub 1))
-                              'after-string
-                              (concat "\n" indent
-                                      "[" (number-to-string sig-lines)
-                                      "-line signature. Press 's' to show.]"))
-                 (goto-char end)))))
+                  (let ((invis-spec (make-symbol "notmuch-signature-region")))
+                    (add-to-invisibility-spec invis-spec)
+                    (overlay-put (make-overlay beg-sub end)
+                                 'invisible invis-spec)
+                  
+                    (goto-char (- beg-sub 1))
+                    (insert (concat "\n" indent))
+                    (let ((sig-button (insert-button 
+                                       (concat "[" (number-to-string sig-lines)
+                                         "-line signature.]"))))
+                      (button-put sig-button 'invisibility-spec invis-spec)
+                      (button-put sig-button 'action
+                                  'notmuch-toggle-invisible-action)
+                      (button-put sig-button 'help-echo
+                                  "mouse-2, RET: Show signature")
+                      )
+                    (insert "\n")
+                    (goto-char end))))))
       (forward-line))))
 
 (defun notmuch-show-markup-part (beg end depth)