bug#60740: [PATCH 1/2] No longer use transient in isearch-emoji-by-name

[Jonas Bernoulli <jonas@bernoul.li>]

* lisp/isearch.el (isearch-emoji-by-name): Use 'emoji--read-emoji'
and if that returns derivations, 'completing-read' to select one
of them.  This fixes bug#60740.
* lisp/international/emoji.el (emoji--init): Autoload.
(emoji--read-emoji): New function, which doesn't use transient
and returns a list of the glyph and all derivations, if any.
(emoji--choose-emoji): Use 'emoji--read-emoji'.
---
 lisp/international/emoji.el | 36 ++++++++++++++++++++----------------
 lisp/isearch.el             | 20 ++++++++------------
 2 files changed, 28 insertions(+), 28 deletions(-)

diff --git a/lisp/international/emoji.el b/lisp/international/emoji.el
index 2d17cf639b0..f75bd877991 100644
--- a/lisp/international/emoji.el
+++ b/lisp/international/emoji.el
@@ -245,6 +245,7 @@ emoji-list-help
           (error "Emoji name is unknown")
         (message "%s" name)))))
 
+;;;###autoload
 (defun emoji--init (&optional force inhibit-adjust)
   (when (or (not emoji--labels)
             force)
@@ -638,7 +639,7 @@ emoji--split-long-lists
                          collect (cons (concat (string prefix) "-group")
                                        (seq-take bit 77))))))))
 
-(defun emoji--choose-emoji ()
+(defun emoji--read-emoji ()
   ;; Use the list of names.
   (let* ((table
           (if (not emoji-alternate-names)
@@ -678,21 +679,24 @@ emoji--choose-emoji
 	       (complete-with-action action table string pred)))
            nil t)))
     (when (cl-plusp (length name))
-      (let* ((glyph (if emoji-alternate-names
-                        (cadr (split-string name "\t"))
-                      (gethash name emoji--all-bases)))
-             (derived (gethash glyph emoji--derived)))
-        (if (not derived)
-            ;; Simple glyph with no derivations.
-            (progn
-              (emoji--add-recent glyph)
-              (insert glyph))
-          ;; Choose a derived version.
-          (let ((emoji--done-derived (make-hash-table :test #'equal)))
-            (setf (gethash glyph emoji--done-derived) t)
-            (funcall
-             (emoji--define-transient
-              (cons "Choose Emoji" (cons glyph derived))))))))))
+      (let ((glyph (if emoji-alternate-names
+                       (cadr (split-string name "\t"))
+                     (gethash name emoji--all-bases))))
+        (cons glyph (gethash glyph emoji--derived))))))
+
+(defun emoji--choose-emoji ()
+  (pcase-let ((`(,glyph ,derived)) (emoji--read-emoji))
+    (if (not derived)
+        ;; Simple glyph with no derivations.
+        (progn
+          (emoji--add-recent glyph)
+          (insert glyph))
+      ;; Choose a derived version.
+      (let ((emoji--done-derived (make-hash-table :test #'equal)))
+        (setf (gethash glyph emoji--done-derived) t)
+        (funcall
+         (emoji--define-transient
+          (cons "Choose Emoji" (cons glyph derived))))))))
 
 (defvar-keymap emoji-zoom-map
   "+" #'emoji-zoom-increase
diff --git a/lisp/isearch.el b/lisp/isearch.el
index 22e27764127..bfa71756146 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -2774,25 +2774,21 @@ isearch-char-by-name
 					   (mapconcat 'isearch-text-char-description
 						      string ""))))))))
 
-(defvar emoji--derived)
 (defun isearch-emoji-by-name (&optional count)
   "Read an Emoji name and add it to the search string COUNT times.
 COUNT (interactively, the prefix argument) defaults to 1.
 The command accepts Unicode names like \"smiling face\" or
 \"heart with arrow\", and completion is available."
   (interactive "p")
+  (emoji--init)
   (with-isearch-suspended
-   (let ((emoji (with-temp-buffer
-                  ;; Derived emoji not supported yet (bug#60740).
-                  ;; So first load `emoji--labels', then `emoji--init'
-                  ;; will not fill `emoji--derived' that is set
-                  ;; to an empty hash table below.
-                  (ignore-errors (require 'emoji-labels))
-                  (let ((emoji--derived (make-hash-table :test #'equal)))
-                    (emoji-search))
-                  (if (and (integerp count) (> count 1))
-                      (apply 'concat (make-list count (buffer-string)))
-                    (buffer-string)))))
+   (pcase-let* ((`(,glyph . ,derived) (emoji--read-emoji))
+                (emoji (if derived
+                           (completing-read "Select derivation: "
+                                            (cons glyph derived) nil t)
+                         glyph)))
+     (when (and (integerp count) (> count 1))
+       (setq emoji (apply 'concat (make-list count emoji))))
      (when emoji
        (setq isearch-new-string (concat isearch-string emoji)
              isearch-new-message (concat isearch-message
-- 
2.39.1