master faf1f03798 1/2: Improve C-x C-q in emacs-news-mode

[Po Lu]

branch: master
commit faf1f037987ccef81b3f1a18bfc5ea4de867983e
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Improve C-x C-q in emacs-news-mode
    
    * lisp/textmodes/emacs-news-mode.el (emacs-news-mode-map)
    (emacs-news-view-mode-map): Make C-x C-q switch to the
    appropriate mode for editing, and vice versa.
    (emacs-news-mode): Disable button-mode and make buffer
    read-write.
---
 lisp/textmodes/emacs-news-mode.el | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lisp/textmodes/emacs-news-mode.el 
b/lisp/textmodes/emacs-news-mode.el
index af0aa2ddea..c7fa9fa2b2 100644
--- a/lisp/textmodes/emacs-news-mode.el
+++ b/lisp/textmodes/emacs-news-mode.el
@@ -56,10 +56,12 @@
   "C-c C-g" #'emacs-news-goto-section
   "C-c C-j" #'emacs-news-find-heading
   "C-c C-e" #'emacs-news-count-untagged-entries
+  "C-x C-q" #'emacs-news-view-mode
   "<remap> <open-line>" #'emacs-news-open-line)
 
 (defvar-keymap emacs-news-view-mode-map
-  :parent emacs-news-common-map)
+  :parent emacs-news-common-map
+  "C-x C-q" #'emacs-news-mode)
 
 (defvar emacs-news-mode-font-lock-keywords
   `(("^---$" 0 'emacs-news-does-not-need-documentation)
@@ -78,6 +80,11 @@
 ;;;###autoload
 (define-derived-mode emacs-news-mode text-mode "NEWS"
   "Major mode for editing the Emacs NEWS file."
+  ;; Disable buttons.
+  (button-mode nil)
+  ;; And make the buffer writable.  This is used when toggling
+  ;; emacs-news-mode.
+  (setq buffer-read-only nil)
   (setq-local fill-paragraph-function #'emacs-news--fill-paragraph)
   (emacs-news--mode-common))