[PATCH 1/4] Preserve active region after structure edits

[Ihor Radchenko <yantar92@posteo.net>]

* lisp/org-list.el (org-list-indent-item-generic):
* lisp/org.el (org-do-promote):
(org-do-demote): Do not deactivate mark after edits.
(org-metadown):
(org-metaup): Do not deactivate mark and do not exchange point and
mark in region.
---
 lisp/org-list.el |  3 ++-
 lisp/org.el      | 64 ++++++++++++++++++++++++++++--------------------
 2 files changed, 39 insertions(+), 28 deletions(-)

diff --git a/lisp/org-list.el b/lisp/org-list.el
index 1fc99d070..9fa072ce7 100644
--- a/lisp/org-list.el
+++ b/lisp/org-list.el
@@ -2688,7 +2688,8 @@ (defun org-list-indent-item-generic (arg no-subtree struct)
                        (no-subtree (1+ (line-beginning-position)))
                        (t (org-list-get-item-end (line-beginning-position) struct))))))
       (let* ((beg (marker-position org-last-indent-begin-marker))
-	     (end (marker-position org-last-indent-end-marker)))
+	     (end (marker-position org-last-indent-end-marker))
+             (deactivate-mark nil))
 	(cond
 	 ;; Special case: moving top-item with indent rule.
 	 (specialp
diff --git a/lisp/org.el b/lisp/org.el
index 59fe3d2d3..58a3434f4 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -6579,7 +6579,8 @@ (defun org-do-promote ()
   (interactive)
   (save-excursion
     (if (org-region-active-p)
-	(org-map-region 'org-promote (region-beginning) (region-end))
+        (let ((deactivate-mark nil))
+          (org-map-region 'org-promote (region-beginning) (region-end)))
       (org-promote)))
   (org-fix-position-after-promote))
 
@@ -6590,7 +6591,8 @@ (defun org-do-demote ()
   (interactive)
   (save-excursion
     (if (org-region-active-p)
-	(org-map-region 'org-demote (region-beginning) (region-end))
+        (let ((deactivate-mark nil))
+          (org-map-region 'org-demote (region-beginning) (region-end)))
       (org-demote)))
   (org-fix-position-after-promote))
 
@@ -16884,21 +16886,25 @@ (defun org-metaup (&optional _arg)
    ((run-hook-with-args-until-success 'org-metaup-hook))
    ((org-region-active-p)
     (let* ((a (save-excursion
-		(goto-char (region-beginning))
-		(line-beginning-position)))
-	   (b (save-excursion
-		(goto-char (region-end))
-		(if (bolp) (1- (point)) (line-end-position))))
-	   (c (save-excursion
-		(goto-char a)
-		(move-beginning-of-line 0)
-		(point)))
-	   (d (save-excursion
-		(goto-char a)
-		(move-end-of-line 0)
-		(point))))
+                (goto-char (region-beginning))
+                (line-beginning-position)))
+           (b (save-excursion
+                (goto-char (region-end))
+                (if (bolp) (1- (point)) (line-end-position))))
+           (c (save-excursion
+                (goto-char a)
+                (move-beginning-of-line 0)
+                (point)))
+           (d (save-excursion
+                (goto-char a)
+                (move-end-of-line 0)
+                (point)))
+           (deactivate-mark nil)
+           (swap? (< (point) (mark))))
       (transpose-regions a b c d)
-      (goto-char c)))
+      (set-mark c)
+      (goto-char (+ c (- b a)))
+      (when swap? (exchange-point-and-mark))))
    ((org-at-table-p) (org-call-with-arg 'org-table-move-row 'up))
    ((and (featurep 'org-inlinetask)
          (org-inlinetask-in-task-p))
@@ -16917,21 +16923,25 @@ (defun org-metadown (&optional _arg)
    ((run-hook-with-args-until-success 'org-metadown-hook))
    ((org-region-active-p)
     (let* ((a (save-excursion
-		(goto-char (region-beginning))
-		(line-beginning-position)))
+                (goto-char (region-beginning))
+                (line-beginning-position)))
 	   (b (save-excursion
-		(goto-char (region-end))
-		(if (bolp) (1- (point)) (line-end-position))))
+                (goto-char (region-end))
+                (if (bolp) (1- (point)) (line-end-position))))
 	   (c (save-excursion
-		(goto-char b)
-		(move-beginning-of-line (if (bolp) 1 2))
-		(point)))
+                (goto-char b)
+                (move-beginning-of-line (if (bolp) 1 2))
+                (point)))
 	   (d (save-excursion
-		(goto-char b)
-		(move-end-of-line (if (bolp) 1 2))
-		(point))))
+                (goto-char b)
+                (move-end-of-line (if (bolp) 1 2))
+                (point)))
+           (deactivate-mark nil)
+           (swap? (< (point) (mark))))
       (transpose-regions a b c d)
-      (goto-char d)))
+      (set-mark (+ 1 a (- d c)))
+      (goto-char (+ 1 a (- d c) (- b a)))
+      (when swap? (exchange-point-and-mark))))
    ((org-at-table-p) (call-interactively 'org-table-move-row))
    ((and (featurep 'org-inlinetask)
          (org-inlinetask-in-task-p))
-- 
2.39.0