branch: master
commit 8b6a6bbce4704ac3b759a5f09ea0844dfd624892
Author: Paul Nelson <[email protected]>
Commit: Arash Esbati <[email protected]>
Allow programmatic preview abortion
* preview.el.in (preview-abort-flag): New variable.
(preview-TeX-inline-sentinel): Use it. (bug#70630)
---
preview.el.in | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/preview.el.in b/preview.el.in
index 72568be7..64473e60 100644
--- a/preview.el.in
+++ b/preview.el.in
@@ -3902,6 +3902,12 @@ If FAST is set, do a fast conversion."
TeX-shell-command-option
command))))
+(defvar-local preview-abort-flag nil
+ "Cause ongoing preview generation to abort.
+If non-nil, then `preview-TeX-inline-sentinel' aborts and resets this
+variable to nil. This is intended to give a way for external packages
+to abort preview generation, more reliably than via process signals.")
+
(defun preview-TeX-inline-sentinel (process _name)
"Sentinel function for preview.
See `TeX-sentinel-function' and `set-process-sentinel'
@@ -3910,7 +3916,12 @@ for definition of PROCESS and NAME."
(let ((status (process-status process)))
(if (memq status '(signal exit))
(delete-process process))
- (when (eq status 'exit)
+ (cond
+ ((with-current-buffer TeX-command-buffer
+ (prog1
+ preview-abort-flag
+ (setq preview-abort-flag nil))))
+ ((eq status 'exit)
(save-excursion
(goto-char (point-max))
(forward-line -1)
@@ -3921,7 +3932,7 @@ for definition of PROCESS and NAME."
(condition-case err
(preview-call-hook 'open)
(error (preview-log-error err "LaTeX" process)))
- (preview-reraise-error process))))
+ (preview-reraise-error process)))))
(defcustom preview-format-extensions '(".fmt" ".efmt")
"Possible extensions for format files.
