# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1566135006 -7200
# Node ID c75da1064e33f53635127514cdeff6544b5ceb21
# Parent  be00d5dad3f5daf267c3d27c161c6b2ad7df8655
patch 8.1.1880: cannot show extra info for completion in a popup window

commit https://github.com/vim/vim/commit/576a4a6ff14da876d7c4418e5f27e926fcfa8d2a
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sun Aug 18 15:25:17 2019 +0200

    patch 8.1.1880: cannot show extra info for completion in a popup window

    Problem:    Cannot show extra info for completion in a popup window.
    Solution:   Add the "popup" entry in 'completeopt'.

diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 8.1.  Last change: 2019 Jul 31
+*options.txt*	For Vim version 8.1.  Last change: 2019 Aug 17
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -1915,6 +1915,11 @@ A jump table for the options with a shor
 		    completion in the preview window.  Only works in
 		    combination with "menu" or "menuone".
 
+	   popup    Show extra information about the currently selected
+		    completion in a popup window.  Only works in combination
+		    with "menu" or "menuone".  Overrides "preview".
+		    {only works when compiled with the +textprop feature}
+
 	   noinsert Do not insert any text for a match until the user selects
 		    a match from the menu. Only works in combination with
 		    "menu" or "menuone". No effect if "longest" is present.
@@ -5650,6 +5655,8 @@ A jump table for the options with a shor
 			|+textprop| or |+quickfix| feature}
 	When not empty a popup window is used for commands that would open a
 	preview window.  See |preview-popup|.
+	Not used for the insert completion info, add "popup" to
+	'completeopt' for that.
 
 					*'previewwindow'* *'nopreviewwindow'*
 					*'pvw'* *'nopvw'* *E590*
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -5131,7 +5131,9 @@ free_old_sub(void)
  */
     int
 prepare_tagpreview(
-    int		undo_sync)	/* sync undo when leaving the window */
+    int		undo_sync,	    // sync undo when leaving the window
+    int		use_previewpopup,   // use popup if 'previewpopup' set
+    int		use_popup)	    // use other popup window
 {
     win_T	*wp;
 
@@ -5145,11 +5147,16 @@ prepare_tagpreview(
     if (!curwin->w_p_pvw)
     {
 # ifdef FEAT_TEXT_PROP
-	if (*p_pvp != NUL)
+	if (use_previewpopup && *p_pvp != NUL)
 	{
 	    wp = popup_find_preview_window();
 	    if (wp != NULL)
-		popup_set_wantpos(wp, wp->w_minwidth);
+		popup_set_wantpos_cursor(wp, wp->w_minwidth);
+	}
+	else if (use_popup)
+	{
+	    wp = popup_find_info_window();
+	    // TODO: set position
 	}
 	else
 # endif
@@ -5166,8 +5173,8 @@ prepare_tagpreview(
 	     * There is no preview window open yet.  Create one.
 	     */
 # ifdef FEAT_TEXT_PROP
-	    if (*p_pvp != NUL)
-		return popup_create_preview_window();
+	    if ((use_previewpopup && *p_pvp != NUL) || use_popup)
+		return popup_create_preview_window(use_popup);
 # endif
 	    if (win_split(g_do_tagpreview > 0 ? g_do_tagpreview : 0, 0) == FAIL)
 		return FALSE;
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -5825,7 +5825,7 @@ ex_pclose(exarg_T *eap)
 	}
 # ifdef FEAT_TEXT_PROP
     // Also when 'previewpopup' is empty, it might have been cleared.
-    popup_close_preview();
+    popup_close_preview(FALSE);
 # endif
 }
 #endif
@@ -8614,7 +8614,7 @@ ex_pedit(exarg_T *eap)
 
     // Open the preview window or popup and make it the current window.
     g_do_tagpreview = p_pvh;
-    prepare_tagpreview(TRUE);
+    prepare_tagpreview(TRUE, TRUE, FALSE);
 
     // Edit the file.
     do_exedit(eap, NULL);
diff --git a/src/option.c b/src/option.c
--- a/src/option.c
+++ b/src/option.c
@@ -3247,7 +3247,7 @@ static char *(p_fdm_values[]) = {"manual
 static char *(p_fcl_values[]) = {"all", NULL};
 #endif
 #ifdef FEAT_INS_EXPAND
-static char *(p_cot_values[]) = {"menu", "menuone", "longest", "preview", "noinsert", "noselect", NULL};
+static char *(p_cot_values[]) = {"menu", "menuone", "longest", "preview", "popup", "noinsert", "noselect", NULL};
 # ifdef BACKSLASH_IN_FILENAME
 static char *(p_csl_values[]) = {"slash", "backslash", NULL};
 # endif
diff --git a/src/popupmnu.c b/src/popupmnu.c
--- a/src/popupmnu.c
+++ b/src/popupmnu.c
@@ -638,6 +638,9 @@ pum_set_selected(int n, int repeat)
 {
     int	    resized = FALSE;
     int	    context = pum_height / 2;
+#ifdef FEAT_TEXT_PROP
+    int	    has_info = FALSE;
+#endif
 
     pum_selected = n;
 
@@ -690,11 +693,14 @@ pum_set_selected(int n, int repeat)
 		pum_first = pum_selected + context - pum_height + 1;
 	    }
 	}
+	// adjust for the number of lines displayed
+	if (pum_first > pum_size - pum_height)
+	    pum_first = pum_size - pum_height;
 
 #if defined(FEAT_QUICKFIX)
 	/*
 	 * Show extra info in the preview window if there is something and
-	 * 'completeopt' contains "preview".
+	 * 'completeopt' contains "preview" or "popup".
 	 * Skip this when tried twice already.
 	 * Skip this also when there is not much room.
 	 * NOTE: Be very careful not to sync undo!
@@ -707,43 +713,71 @@ pum_set_selected(int n, int repeat)
 	    win_T	*curwin_save = curwin;
 	    tabpage_T   *curtab_save = curtab;
 	    int		res = OK;
+# ifdef FEAT_TEXT_PROP
+	    int		use_popup = strstr((char *)p_cot, "popup") != NULL;
+# else
+#  define use_popup 0
+# endif
+	    has_info = TRUE;
 
-	    /* Open a preview window.  3 lines by default.  Prefer
-	     * 'previewheight' if set and smaller. */
+	    // Open a preview window.  3 lines by default.  Prefer
+	    // 'previewheight' if set and smaller.
 	    g_do_tagpreview = 3;
 	    if (p_pvh > 0 && p_pvh < g_do_tagpreview)
 		g_do_tagpreview = p_pvh;
 	    ++RedrawingDisabled;
-	    /* Prevent undo sync here, if an autocommand syncs undo weird
-	     * things can happen to the undo tree. */
+	    // Prevent undo sync here, if an autocommand syncs undo weird
+	    // things can happen to the undo tree.
 	    ++no_u_sync;
-	    resized = prepare_tagpreview(FALSE);
+	    resized = prepare_tagpreview(FALSE, FALSE, use_popup);
 	    --no_u_sync;
 	    --RedrawingDisabled;
 	    g_do_tagpreview = 0;
 
-	    if (curwin->w_p_pvw)
+	    if (curwin->w_p_pvw
+# ifdef FEAT_TEXT_PROP
+		    || (curwin->w_popup_flags & POPF_INFO)
+# endif
+		    )
 	    {
+# ifdef FEAT_TEXT_PROP
+		if (use_popup)
+		{
+		    int col = pum_col + pum_width + 1;
+
+		    if (Columns - col < 20 && Columns - col < pum_col)
+		    {
+			col = pum_col - 1;
+			curwin->w_popup_pos = POPPOS_TOPRIGHT;
+			curwin->w_maxwidth = pum_col - 1;
+		    }
+		    else
+			curwin->w_maxwidth = Columns - col + 1;
+		    curwin->w_maxwidth -= popup_extra_width(curwin);
+		    popup_set_wantpos_rowcol(curwin,
+				      pum_row + pum_selected - pum_first, col);
+		}
+# endif
 		if (!resized
 			&& curbuf->b_nwindows == 1
 			&& curbuf->b_fname == NULL
 			&& bt_nofile(curbuf)
 			&& curbuf->b_p_bh[0] == 'w')
 		{
-		    /* Already a "wipeout" buffer, make it empty. */
+		    // Already a "wipeout" buffer, make it empty.
 		    while (!BUFEMPTY())
 			ml_delete((linenr_T)1, FALSE);
 		}
 		else
 		{
-		    /* Don't want to sync undo in the current buffer. */
+		    // Don't want to sync undo in the current buffer.
 		    ++no_u_sync;
 		    res = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 0, NULL);
 		    --no_u_sync;
 		    if (res == OK)
 		    {
-			/* Edit a new, empty buffer. Set options for a "wipeout"
-			 * buffer. */
+			// Edit a new, empty buffer. Set options for a "wipeout"
+			// buffer.
 			set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL);
 			set_option_value((char_u *)"bt", 0L,
 					       (char_u *)"nofile", OPT_LOCAL);
@@ -774,10 +808,12 @@ pum_set_selected(int n, int repeat)
 			    p = e + 1;
 			}
 		    }
+		    // delete the empty last line
+		    ml_delete(curbuf->b_ml.ml_line_count, FALSE);
 
 		    /* Increase the height of the preview window to show the
 		     * text, but no more than 'previewheight' lines. */
-		    if (repeat == 0)
+		    if (repeat == 0 && !use_popup)
 		    {
 			if (lnum > p_pvh)
 			    lnum = p_pvh;
@@ -792,6 +828,8 @@ pum_set_selected(int n, int repeat)
 		    curbuf->b_p_ma = FALSE;
 		    curwin->w_cursor.lnum = 1;
 		    curwin->w_cursor.col = 0;
+		    if (use_popup && win_valid(curwin_save))
+			redraw_win_later(curwin_save, SOME_VALID);
 
 		    if ((curwin != curwin_save && win_valid(curwin_save))
 			    || (curtab != curtab_save
@@ -852,6 +890,11 @@ pum_set_selected(int n, int repeat)
 	}
 #endif
     }
+# ifdef FEAT_TEXT_PROP
+    if (!has_info)
+	// close any popup info window
+	popup_close_preview(TRUE);
+# endif
 
     if (!resized)
 	pum_redraw();
@@ -869,6 +912,10 @@ pum_undisplay(void)
     redraw_all_later(NOT_VALID);
     redraw_tabline = TRUE;
     status_redraw_all();
+#ifdef FEAT_TEXT_PROP
+    // close any popup info window
+    popup_close_preview(TRUE);
+#endif
 }
 
 /*
diff --git a/src/popupwin.c b/src/popupwin.c
--- a/src/popupwin.c
+++ b/src/popupwin.c
@@ -951,8 +951,8 @@ popup_top_extra(win_T *wp)
 popup_height(win_T *wp)
 {
     return wp->w_height
-	+ popup_top_extra(wp)
-	+ wp->w_popup_padding[2] + wp->w_popup_border[2];
+	    + popup_top_extra(wp)
+	    + wp->w_popup_padding[2] + wp->w_popup_border[2];
 }
 
 /*
@@ -965,10 +965,19 @@ popup_width(win_T *wp)
     // w_leftcol is how many columns of the core are left of the screen
     // w_popup_rightoff is how many columns of the core are right of the screen
     return wp->w_width + wp->w_leftcol
-	+ wp->w_popup_padding[3] + wp->w_popup_border[3]
-	+ wp->w_popup_padding[1] + wp->w_popup_border[1]
-	+ wp->w_has_scrollbar
-	+ wp->w_popup_rightoff;
+	    + popup_extra_width(wp)
+	    + wp->w_popup_rightoff;
+}
+
+/*
+ * Return the extra width of popup window "wp": border, padding and scrollbar.
+ */
+    int
+popup_extra_width(win_T *wp)
+{
+    return wp->w_popup_padding[3] + wp->w_popup_border[3]
+	    + wp->w_popup_padding[1] + wp->w_popup_border[1]
+	    + wp->w_has_scrollbar;
 }
 
 /*
@@ -1230,7 +1239,8 @@ typedef enum
     TYPE_NOTIFICATION,
     TYPE_DIALOG,
     TYPE_MENU,
-    TYPE_PREVIEW
+    TYPE_PREVIEW,	// preview window
+    TYPE_INFO		// popup menu info
 } create_type_T;
 
 /*
@@ -1330,7 +1340,7 @@ parse_previewpopup(win_T *wp)
  * Keep at least "width" columns from the right of the screen.
  */
     void
-popup_set_wantpos(win_T *wp, int width)
+popup_set_wantpos_cursor(win_T *wp, int width)
 {
     setcursor_mayforce(TRUE);
     wp->w_wantline = curwin->w_winrow + curwin->w_wrow;
@@ -1351,10 +1361,37 @@ popup_set_wantpos(win_T *wp, int width)
 }
 
 /*
+ * Set w_wantline and w_wantcol for the a given screen position.
+ * Caller must take care of running into the window border.
+ */
+    void
+popup_set_wantpos_rowcol(win_T *wp, int row, int col)
+{
+    wp->w_wantline = row;
+    wp->w_wantcol = col;
+    popup_adjust_position(wp);
+}
+
+/*
+ * Add a border and lef&right padding.
+ */
+    static void
+add_border_left_right_padding(win_T *wp)
+{
+    int i;
+
+    for (i = 0; i < 4; ++i)
+    {
+	wp->w_popup_border[i] = 1;
+	wp->w_popup_padding[i] = (i & 1) ? 1 : 0;
+    }
+}
+
+/*
  * popup_create({text}, {options})
  * popup_atcursor({text}, {options})
  * etc.
- * When creating a preview window popup "argvars" and "rettv" are NULL.
+ * When creating a preview or info popup "argvars" and "rettv" are NULL.
  */
     static win_T *
 popup_create(typval_T *argvars, typval_T *rettv, create_type_T type)
@@ -1495,7 +1532,7 @@ popup_create(typval_T *argvars, typval_T
     }
     if (type == TYPE_ATCURSOR)
     {
-	popup_set_wantpos(wp, 0);
+	popup_set_wantpos_cursor(wp, 0);
 	set_moved_values(wp);
 	set_moved_columns(wp, FIND_STRING);
     }
@@ -1571,11 +1608,7 @@ popup_create(typval_T *argvars, typval_T
 	wp->w_zindex = POPUPWIN_DIALOG_ZINDEX;
 	wp->w_popup_flags |= POPF_DRAG;
 	wp->w_popup_flags &= ~POPF_MAPPING;
-	for (i = 0; i < 4; ++i)
-	{
-	    wp->w_popup_border[i] = 1;
-	    wp->w_popup_padding[i] = (i & 1) ? 1 : 0;
-	}
+	add_border_left_right_padding(wp);
     }
 
     if (type == TYPE_MENU)
@@ -1600,7 +1633,14 @@ popup_create(typval_T *argvars, typval_T
 	for (i = 0; i < 4; ++i)
 	    wp->w_popup_border[i] = 1;
 	parse_previewpopup(wp);
-	popup_set_wantpos(wp, wp->w_minwidth);
+	popup_set_wantpos_cursor(wp, wp->w_minwidth);
+    }
+    if (type == TYPE_INFO)
+    {
+	wp->w_popup_pos = POPPOS_TOPLEFT;
+	wp->w_popup_flags |= POPF_DRAG | POPF_RESIZE;
+	wp->w_popup_close = POPCLOSE_BUTTON;
+	add_border_left_right_padding(wp);
     }
 
     for (i = 0; i < 4; ++i)
@@ -3171,6 +3211,28 @@ popup_find_preview_window(void)
     return NULL;
 }
 
+    int
+popup_is_popup(win_T *wp)
+{
+    return wp->w_popup_flags != 0;
+}
+
+/*
+ * Find an existing popup used as the info window, in the current tab page.
+ * Return NULL if not found.
+ */
+    win_T *
+popup_find_info_window(void)
+{
+    win_T *wp;
+
+    // info window popup is always local to tab page.
+    for (wp = curtab->tp_first_popupwin; wp != NULL; wp = wp->w_next)
+	if (wp->w_popup_flags & POPF_INFO)
+	    return wp;
+    return NULL;
+}
+
     void
 f_popup_getpreview(typval_T *argvars UNUSED, typval_T *rettv)
 {
@@ -3179,26 +3241,23 @@ f_popup_getpreview(typval_T *argvars UNU
     rettv->vval.v_number = wp == NULL ? 0 : wp->w_id;
 }
 
-    int
-popup_is_popup(win_T *wp)
-{
-    return wp->w_popup_flags != 0;
-}
-
 /*
- * Create a popup to be used as the preview window.
+ * Create a popup to be used as the preview or info window.
  * NOTE: this makes the popup the current window, so that the file can be
  * edited.  However, it must not remain to be the current window, the caller
  * must make sure of that.
  */
     int
-popup_create_preview_window(void)
+popup_create_preview_window(int info)
 {
-    win_T *wp = popup_create(NULL, NULL, TYPE_PREVIEW);
+    win_T *wp = popup_create(NULL, NULL, info ? TYPE_INFO : TYPE_PREVIEW);
 
     if (wp == NULL)
 	return FAIL;
-    wp->w_p_pvw = TRUE;
+    if (info)
+	wp->w_popup_flags |= POPF_INFO;
+    else
+	wp->w_p_pvw = TRUE;
 
     // Set the width to a reasonable value, so that w_topline can be computed.
     if (wp->w_minwidth > 0)
@@ -3216,9 +3275,9 @@ popup_create_preview_window(void)
 }
 
     void
-popup_close_preview()
+popup_close_preview(int info)
 {
-    win_T *wp = popup_find_preview_window();
+    win_T *wp = info ? popup_find_info_window() : popup_find_preview_window();
 
     if (wp != NULL)
     {
diff --git a/src/proto/ex_cmds.pro b/src/proto/ex_cmds.pro
--- a/src/proto/ex_cmds.pro
+++ b/src/proto/ex_cmds.pro
@@ -37,7 +37,7 @@ void global_exe(char_u *cmd);
 char_u *get_old_sub(void);
 void set_old_sub(char_u *val);
 void free_old_sub(void);
-int prepare_tagpreview(int undo_sync);
+int prepare_tagpreview(int undo_sync, int use_previewpopup, int use_popup);
 void ex_help(exarg_T *eap);
 void ex_helpclose(exarg_T *eap);
 char_u *check_help_lang(char_u *arg);
diff --git a/src/proto/popupwin.pro b/src/proto/popupwin.pro
--- a/src/proto/popupwin.pro
+++ b/src/proto/popupwin.pro
@@ -8,9 +8,11 @@ int popup_is_in_scrollbar(win_T *wp, int
 void popup_handle_scrollbar_click(win_T *wp, int row, int col);
 int popup_height(win_T *wp);
 int popup_width(win_T *wp);
+int popup_extra_width(win_T *wp);
 void popup_adjust_position(win_T *wp);
 int parse_previewpopup(win_T *wp);
-void popup_set_wantpos(win_T *wp, int width);
+void popup_set_wantpos_cursor(win_T *wp, int width);
+void popup_set_wantpos_rowcol(win_T *wp, int row, int col);
 void f_popup_clear(typval_T *argvars, typval_T *rettv);
 void f_popup_create(typval_T *argvars, typval_T *rettv);
 void f_popup_atcursor(typval_T *argvars, typval_T *rettv);
@@ -44,10 +46,11 @@ void may_update_popup_mask(int type);
 void update_popups(void (*win_update)(win_T *wp));
 int set_ref_in_popups(int copyID);
 win_T *popup_find_preview_window(void);
+int popup_is_popup(win_T *wp);
+win_T *popup_find_info_window(void);
 void f_popup_getpreview(typval_T *argvars, typval_T *rettv);
-int popup_is_popup(win_T *wp);
-int popup_create_preview_window(void);
-void popup_close_preview(void);
+int popup_create_preview_window(int info);
+void popup_close_preview(int info);
 void popup_set_title(win_T *wp);
 void popup_update_preview_title(void);
 /* vim: set ft=c : */
diff --git a/src/search.c b/src/search.c
--- a/src/search.c
+++ b/src/search.c
@@ -5578,7 +5578,7 @@ search_line:
 		    if (g_do_tagpreview != 0)
 		    {
 			curwin_save = curwin;
-			prepare_tagpreview(TRUE);
+			prepare_tagpreview(TRUE, TRUE, FALSE);
 		    }
 #endif
 		    if (action == ACTION_SPLIT)
diff --git a/src/tag.c b/src/tag.c
--- a/src/tag.c
+++ b/src/tag.c
@@ -3439,7 +3439,7 @@ jumpto_tag(
 	     * Make the preview window the current window.
 	     * Open a preview window when needed.
 	     */
-	    prepare_tagpreview(TRUE);
+	    prepare_tagpreview(TRUE, TRUE, FALSE);
 	}
     }
 
diff --git a/src/testdir/dumps/Test_popupwin_infopopup_1.dump b/src/testdir/dumps/Test_popupwin_infopopup_1.dump
new file mode 100644
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_infopopup_1.dump
@@ -0,0 +1,14 @@
+|t+0&#ffffff0|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|a|w|o|r|d> @15|╔+0#0000001#ffd7ff255|═@15|X| +0#0000000#ffffff0@9
+|~+0#4040ff13&| @23| +0#0000001#e0e0e08|w|r|d| @4|W| |e|x|t|r|a| |t|e|x|t| |║+0&#ffd7ff255| |w|o|r|d|s| |a|r|e| |c|o@1|l| |║| +0#4040ff13#ffffff0@9
+|~| @23| +0#0000001#ffd7ff255|a|n|o|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |╚|═@15|⇲| +0#4040ff13#ffffff0@9
+|~| @23| +0#0000001#ffd7ff255|n|o|a|w|r|d| @1|W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|t|h|a|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |U|s|e|r| |d|e|f|i|n|e|d| |c|o|m|p|l|e|t|i|o|n| |(|^|U|^|N|^|P|)| |m+0#00e0003&|a|t|c|h| |1| |o|f| |4| +0#0000000&@26
diff --git a/src/testdir/dumps/Test_popupwin_infopopup_2.dump b/src/testdir/dumps/Test_popupwin_infopopup_2.dump
new file mode 100644
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_infopopup_2.dump
@@ -0,0 +1,14 @@
+|t+0&#ffffff0|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|a|n|o|t|h|e|r|w|o|r|d> @37
+|~+0#4040ff13&| @23| +0#0000001#ffd7ff255|w|r|d| @4|W| |e|x|t|r|a| |t|e|x|t| |╔|═@25|X
+|~+0#4040ff13#ffffff0| @23| +0#0000001#e0e0e08|a|n|o|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |║+0&#ffd7ff255| |o|t|h|e|r| |w|o|r|d|s| |a|r|e| @9|║
+|~+0#4040ff13#ffffff0| @23| +0#0000001#ffd7ff255|n|o|a|w|r|d| @1|W| |e|x|t|r|a| |t|e|x|t| |║| |c|o@1|l|e|r| |t|h|a|n| |t|h|i|s| |a|n|d| |s|o|m| |║
+|~+0#4040ff13#ffffff0| @23| +0#0000001#ffd7ff255|t|h|a|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |║| |e| |m|o|r|e| |t|e|x|t| @13|║
+|~+0#4040ff13#ffffff0| @45|║+0#0000001#ffd7ff255| |t|o| |m|a|k|e| |w|r|a|p| @12|║
+|~+0#4040ff13#ffffff0| @45|╚+0#0000001#ffd7ff255|═@25|⇲
+|~+0#4040ff13#ffffff0| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |U|s|e|r| |d|e|f|i|n|e|d| |c|o|m|p|l|e|t|i|o|n| |(|^|U|^|N|^|P|)| |m+0#00e0003&|a|t|c|h| |2| |o|f| |4| +0#0000000&@26
diff --git a/src/testdir/dumps/Test_popupwin_infopopup_3.dump b/src/testdir/dumps/Test_popupwin_infopopup_3.dump
new file mode 100644
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_infopopup_3.dump
@@ -0,0 +1,14 @@
+|t+0&#ffffff0|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|n|o|i|n|f|o> @42
+|~+0#4040ff13&| @23| +0#0000001#ffd7ff255|w|r|d| @4|W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|a|n|o|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |╔|═@14|X| +0#4040ff13#ffffff0@10
+|~| @23| +0#0000001#e0e0e08|n|o|a|w|r|d| @1|W| |e|x|t|r|a| |t|e|x|t| |║+0&#ffd7ff255| |n|o| |w|o|r|d|s| |h|e|r|e| |║| +0#4040ff13#ffffff0@10
+|~| @23| +0#0000001#ffd7ff255|t|h|a|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |╚|═@14|⇲| +0#4040ff13#ffffff0@10
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |U|s|e|r| |d|e|f|i|n|e|d| |c|o|m|p|l|e|t|i|o|n| |(|^|U|^|N|^|P|)| |m+0#00e0003&|a|t|c|h| |3| |o|f| |4| +0#0000000&@26
diff --git a/src/testdir/dumps/Test_popupwin_infopopup_4.dump b/src/testdir/dumps/Test_popupwin_infopopup_4.dump
new file mode 100644
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_infopopup_4.dump
@@ -0,0 +1,14 @@
+|t+0&#ffffff0|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| > @39
+|~+0#4040ff13&| @23| +0#0000001#ffd7ff255|w|r|d| @4|W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|a|n|o|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|n|o|a|w|r|d| @1|W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|t|h|a|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |U|s|e|r| |d|e|f|i|n|e|d| |c|o|m|p|l|e|t|i|o|n| |(|^|U|^|N|^|P|)| |B+0#e000002&|a|c|k| |a|t| |o|r|i|g|i|n|a|l| +0#0000000&@22
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -2193,4 +2193,76 @@ func Test_previewpopup()
   call delete('Xheader.h')
 endfunc
 
+func Test_popupmenu_info()
+  let lines =<< trim END
+      set completeopt+=preview,popup
+      set completefunc=CompleteFuncDict
+
+      func CompleteFuncDict(findstart, base)
+	if a:findstart
+	  if col('.') > 10
+	    return col('.') - 10
+	  endif
+	  return 0
+	endif
+
+	return {
+		\ 'words': [
+		  \ {
+		    \ 'word': 'aword',
+		    \ 'abbr': 'wrd',
+		    \ 'menu': 'extra text',
+		    \ 'info': 'words are cool',
+		    \ 'kind': 'W',
+		    \ 'user_data': 'test'
+		  \ },
+		  \ {
+		    \ 'word': 'anotherword',
+		    \ 'abbr': 'anotwrd',
+		    \ 'menu': 'extra text',
+		    \ 'info': "other words are\ncooler than this and some more text\nto make wrap",
+		    \ 'kind': 'W',
+		    \ 'user_data': 'notest'
+		  \ },
+		  \ {
+		    \ 'word': 'noinfo',
+		    \ 'abbr': 'noawrd',
+		    \ 'menu': 'extra text',
+		    \ 'info': 'no words here',
+		    \ 'kind': 'W',
+		    \ 'user_data': 'notest'
+		  \ },
+		  \ {
+		    \ 'word': 'thatword',
+		    \ 'abbr': 'thatwrd',
+		    \ 'menu': 'extra text',
+		    \ 'info': 'that word is cool',
+		    \ 'kind': 'W',
+		    \ 'user_data': 'notest'
+		  \ },
+		\ ]
+	      \ }
+      endfunc
+      call setline(1, 'text text text text text text text ')
+  END
+  call writefile(lines, 'XtestInfoPopup')
+  let buf = RunVimInTerminal('-S XtestInfoPopup', #{rows: 14})
+  call term_wait(buf, 50)
+
+  call term_sendkeys(buf, "A\<C-X>\<C-U>")
+  call VerifyScreenDump(buf, 'Test_popupwin_infopopup_1', {})
+
+  call term_sendkeys(buf, "\<C-N>")
+  call VerifyScreenDump(buf, 'Test_popupwin_infopopup_2', {})
+
+  call term_sendkeys(buf, "\<C-N>")
+  call VerifyScreenDump(buf, 'Test_popupwin_infopopup_3', {})
+
+  call term_sendkeys(buf, "\<C-N>\<C-N>")
+  call VerifyScreenDump(buf, 'Test_popupwin_infopopup_4', {})
+
+  call StopVimInTerminal(buf)
+  call delete('XtestInfoPopup')
+endfunc
+
 " vim: shiftwidth=2 sts=2
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1880,
+/**/
     1879,
 /**/
     1878,
diff --git a/src/vim.h b/src/vim.h
--- a/src/vim.h
+++ b/src/vim.h
@@ -622,6 +622,7 @@ extern int (*dyn_libintl_wputenv)(const 
 #define POPF_DRAG	0x20	// popup can be moved by dragging
 #define POPF_RESIZE	0x40	// popup can be resized by dragging
 #define POPF_MAPPING	0x80	// mapping keys
+#define POPF_INFO	0x100	// used for info of popup menu
 
 #ifdef FEAT_TEXT_PROP
 # define WIN_IS_POPUP(wp) ((wp)->w_popup_flags != 0)