patch 8.1.1917: non-current window is not redrawn when moving popup

Problem:    Non-current window is not redrawn when moving popup. (Ben Jackson)
Solution:   Redraw all windows under a popup. (closes #4860)

src/popupwin.c

@@ -1219,7 +1219,7 @@ popup_adjust_position(win_T *wp)
     wp->w_popup_last_changedtick = CHANGEDTICK(wp->w_buffer);
 
     // Need to update popup_mask if the position or size changed.
-    // And redraw windows that were behind the popup.
+    // And redraw windows and statuslines that were behind the popup.
     if (org_winrow != wp->w_winrow
 	    || org_wincol != wp->w_wincol
 	    || org_leftcol != wp->w_leftcol
@@ -1227,8 +1227,9 @@ popup_adjust_position(win_T *wp)
 	    || org_width != wp->w_width
 	    || org_height != wp->w_height)
     {
-	redraw_all_later(VALID);
 	redraw_win_later(wp, NOT_VALID);
+	redraw_all_later(SOME_VALID);
+	status_redraw_all();
 	if (wp->w_popup_flags & POPF_ON_CMDLINE)
 	    clear_cmdline = TRUE;
 	popup_mask_refresh = TRUE;

src/testdir/dumps/Test_popupwin_drag_01.dump

@@ -1,10 +1,10 @@
->1+0&#ffffff0| @73
+>1+0&#ffffff0| @35||+1&&|1+0&&| @35
-|2| @73
+|2| @35||+1&&|2+0&&| @35
-|3| @73
+|3| @35||+1&&|3+0&&| @35
-|4| @73
+|4| @35||+1&&|4+0&&| @35
-|5| @73
+|[+3&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p| |[+1&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p
-|6| @31|╔+0#0000001#ffd7ff255|═@5|╗| +0#0000000#ffffff0@33
+|1+0&&| @31|╔+0#0000001#ffd7ff255|═@5|╗| +0#0000000#ffffff0@33
-|7| @31|║+0#0000001#ffd7ff255|1@3| @1|║| +0#0000000#ffffff0@33
+|2| @31|║+0#0000001#ffd7ff255|1@3| @1|║| +0#0000000#ffffff0@33
-|8| @31|║+0#0000001#ffd7ff255|2@5|║| +0#0000000#ffffff0@33
+|3| @31|║+0#0000001#ffd7ff255|2@5|║| +0#0000000#ffffff0@33
-|9| @31|║+0#0000001#ffd7ff255|3@4| |║| +0#0000000#ffffff0@33
+|[+1&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @10|║+0#0000001#ffd7ff255|3@4| |║| +1#0000000#ffffff0|N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p
-@33|╚+0#0000001#ffd7ff255|═@5|⇲| +0#0000000#ffffff0@15|1|,|1| @10|T|o|p| 
+| +0&&@32|╚+0#0000001#ffd7ff255|═@5|⇲| +0#0000000#ffffff0@33

src/testdir/dumps/Test_popupwin_drag_02.dump

@@ -1,10 +1,10 @@
->1+0&#ffffff0| @73
+>1+0&#ffffff0| @35||+1&&|1+0&&| @35
-|2| @31|╔+0#0000001#ffd7ff255|═@5|╗| +0#0000000#ffffff0@33
+|2| @11|╔+0#0000001#ffd7ff255|═@5|╗| +0#0000000#ffffff0@15||+1&&|2+0&&| @35
-|3| @31|║+0#0000001#ffd7ff255|1@3| @1|║| +0#0000000#ffffff0@33
+|3| @11|║+0#0000001#ffd7ff255|1@3| @1|║| +0#0000000#ffffff0@15||+1&&|3+0&&| @35
-|4| @31|║+0#0000001#ffd7ff255|2@5|║| +0#0000000#ffffff0@33
+|4| @11|║+0#0000001#ffd7ff255|2@5|║| +0#0000000#ffffff0@15||+1&&|4+0&&| @35
-|5| @31|║+0#0000001#ffd7ff255|3@4| |║| +0#0000000#ffffff0@33
+|[+3&&|N|o| |N|a|m|e|]| |[|+|]|║+0#0000001#ffd7ff255|3@4| |║|1+3#0000000#ffffff0| @11|T|o|p| |[+1&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p
-|6| @31|╚+0#0000001#ffd7ff255|═@5|⇲| +0#0000000#ffffff0@33
+|1+0&&| @11|╚+0#0000001#ffd7ff255|═@5|⇲| +0#0000000#ffffff0@15||+1&&|1+0&&| @35
-|7| @73
+|2| @35||+1&&|2+0&&| @35
-|8| @73
+|3| @35||+1&&|3+0&&| @35
-|9| @73
+|[+1&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p| |[|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p
-@57|1|,|1| @10|T|o|p| 
+| +0&&@74

src/testdir/dumps/Test_popupwin_drag_03.dump

@@ -1,10 +1,10 @@
->1+0&#ffffff0| @73
+>1+0&#ffffff0| @35||+1&&|1+0&&| @35
-|2| @31|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@29
+|2| @11|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@11||+1&&|2+0&&| @35
-|3| @31|║+0#0000001#ffd7ff255|1@3| @5|║| +0#0000000#ffffff0@29
+|3| @11|║+0#0000001#ffd7ff255|1@3| @5|║| +0#0000000#ffffff0@11||+1&&|3+0&&| @35
-|4| @31|║+0#0000001#ffd7ff255|2@5| @3|║| +0#0000000#ffffff0@29
+|4| @11|║+0#0000001#ffd7ff255|2@5| @3|║| +0#0000000#ffffff0@11||+1&&|4+0&&| @35
-|5| @31|║+0#0000001#ffd7ff255|3@4| @4|║| +0#0000000#ffffff0@29
+|[+3&&|N|o| |N|a|m|e|]| |[|+|]|║+0#0000001#ffd7ff255|3@4| @4|║| +3#0000000#ffffff0@8|T|o|p| |[+1&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p
-|6| @31|║+0#0000001#ffd7ff255| +0#4040ff13&@9|║+0#0000001&| +0#0000000#ffffff0@29
+|1+0&&| @11|║+0#0000001#ffd7ff255| +0#4040ff13&@9|║+0#0000001&| +0#0000000#ffffff0@11||+1&&|1+0&&| @35
-|7| @31|╚+0#0000001#ffd7ff255|═@9|⇲| +0#0000000#ffffff0@29
+|2| @11|╚+0#0000001#ffd7ff255|═@9|⇲| +0#0000000#ffffff0@11||+1&&|2+0&&| @35
-|8| @73
+|3| @35||+1&&|3+0&&| @35
-|9| @73
+|[+1&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p| |[|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|T|o|p
-|:|c|a|l@1| |R|e|s|i|z|e|(|)| @42|1|,|1| @10|T|o|p| 
+|:+0&&|c|a|l@1| |R|e|s|i|z|e|(|)| @60

src/testdir/test_popupwin.vim

@@ -343,6 +343,11 @@ func Test_popup_drag()
   " create a popup that covers the command line
   let lines =<< trim END
 	call setline(1, range(1, 20))
+	split
+	vsplit
+	$wincmd w
+	vsplit
+	1wincmd w
 	let winid = popup_create(['1111', '222222', '33333'], #{
 	      \ drag: 1,
 	      \ resize: 1,
@@ -353,12 +358,12 @@ func Test_popup_drag()
 	  call feedkeys("\<F3>\<LeftMouse>\<F4>\<LeftDrag>\<LeftRelease>", "xt")
 	endfunc
 	map <silent> <F3> :call test_setmouse(&lines - 4, &columns / 2)<CR>
-	map <silent> <F4> :call test_setmouse(&lines - 8, &columns / 2)<CR>
+	map <silent> <F4> :call test_setmouse(&lines - 8, &columns / 2 - 20)<CR>
 	func Resize()
 	  call feedkeys("\<F5>\<LeftMouse>\<F6>\<LeftDrag>\<LeftRelease>", "xt")
 	endfunc
-	map <silent> <F5> :call test_setmouse(6, 41)<CR>
+	map <silent> <F5> :call test_setmouse(6, 21)<CR>
-	map <silent> <F6> :call test_setmouse(7, 45)<CR>
+	map <silent> <F6> :call test_setmouse(7, 25)<CR>
   END
   call writefile(lines, 'XtestPopupDrag')
   let buf = RunVimInTerminal('-S XtestPopupDrag', #{rows: 10})

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1917,
 /**/
     1916,
 /**/