Patch 8.1.1645
Problem:    Cannot use a popup window for a balloon.
Solution:   Add popup_beval().  Add the "mousemoved" property.  Add the
            screenpos() function.
Files:      src/popupwin.c, src/proto/popupwin.pro, src/move.c,
            src/proto/move.pro, src/beval.c, src/proto/beval.pro,
            src/evalfunc.c, src/popupmnu.c, src/normal.c,
            src/testdir/test_popupwin.vim, src/testdir/test_cursor_func.vim,
            runtime/doc/popup.txt, runtime/doc/eval.txt,
            runtime/doc/usr_41.txt,
            src/testdir/dumps/Test_popupwin_beval_1.dump,
            src/testdir/dumps/Test_popupwin_beval_2.dump,
            src/testdir/dumps/Test_popupwin_beval_3.dump


*** ../vim-8.1.1644/src/popupwin.c      2019-07-05 20:17:18.928510171 +0200
--- src/popupwin.c      2019-07-07 16:59:37.333487332 +0200
***************
*** 168,173 ****
--- 168,202 ----
  }
  
  /*
+  * Used when popup options contain "mousemoved": set default moved values.
+  */
+     static void
+ set_mousemoved_values(win_T *wp)
+ {
+     wp->w_popup_mouse_row = mouse_row;
+     wp->w_popup_mouse_mincol = mouse_col;
+     wp->w_popup_mouse_maxcol = mouse_col;
+ }
+ 
+ /*
+  * Used when popup options contain "moved" with "word" or "WORD".
+  */
+     static void
+ set_mousemoved_columns(win_T *wp, int flags)
+ {
+     char_u    *text;
+     int               col;
+ 
+     if (find_word_under_cursor(mouse_row, mouse_col, TRUE, flags,
+                                               NULL, NULL, &text, &col) == OK)
+     {
+       wp->w_popup_mouse_mincol = col;
+       wp->w_popup_mouse_maxcol = col + STRLEN(text) - 1;
+       vim_free(text);
+     }
+ }
+ 
+ /*
   * Return TRUE if "row"/"col" is on the border of the popup.
   * The values are relative to the top-left corner.
   */
***************
*** 336,341 ****
--- 365,417 ----
  }
  
      static void
+ handle_moved_argument(win_T *wp, dictitem_T *di, int mousemoved)
+ {
+     if (di->di_tv.v_type == VAR_STRING && di->di_tv.vval.v_string != NULL)
+     {
+       char_u  *s = di->di_tv.vval.v_string;
+       int     flags = 0;
+ 
+       if (STRCMP(s, "word") == 0)
+           flags = FIND_IDENT | FIND_STRING;
+       else if (STRCMP(s, "WORD") == 0)
+           flags = FIND_STRING;
+       else if (STRCMP(s, "expr") == 0)
+           flags = FIND_IDENT | FIND_STRING | FIND_EVAL;
+       else if (STRCMP(s, "any") != 0)
+           semsg(_(e_invarg2), s);
+       if (flags != 0)
+       {
+           if (mousemoved)
+               set_mousemoved_columns(wp, flags);
+           else
+               set_moved_columns(wp, flags);
+       }
+     }
+     else if (di->di_tv.v_type == VAR_LIST
+           && di->di_tv.vval.v_list != NULL
+           && di->di_tv.vval.v_list->lv_len == 2)
+     {
+       list_T  *l = di->di_tv.vval.v_list;
+       int     mincol = tv_get_number(&l->lv_first->li_tv);
+       int     maxcol = tv_get_number(&l->lv_first->li_next->li_tv);
+ 
+       if (mousemoved)
+       {
+           wp->w_popup_mouse_mincol = mincol;
+           wp->w_popup_mouse_maxcol = maxcol;
+       }
+       else
+       {
+           wp->w_popup_mincol = mincol;
+           wp->w_popup_maxcol = maxcol;
+       }
+     }
+     else
+       semsg(_(e_invarg2), tv_get_string(&di->di_tv));
+ }
+ 
+     static void
  check_highlight(dict_T *dict, char *name, char_u **pval)
  {
      dictitem_T  *di;
***************
*** 541,571 ****
      if (di != NULL)
      {
        set_moved_values(wp);
!       if (di->di_tv.v_type == VAR_STRING && di->di_tv.vval.v_string != NULL)
!       {
!           char_u  *s = di->di_tv.vval.v_string;
!           int     flags = 0;
! 
!           if (STRCMP(s, "word") == 0)
!               flags = FIND_IDENT | FIND_STRING;
!           else if (STRCMP(s, "WORD") == 0)
!               flags = FIND_STRING;
!           else if (STRCMP(s, "any") != 0)
!               semsg(_(e_invarg2), s);
!           if (flags != 0)
!               set_moved_columns(wp, flags);
!       }
!       else if (di->di_tv.v_type == VAR_LIST
!               && di->di_tv.vval.v_list != NULL
!               && di->di_tv.vval.v_list->lv_len == 2)
!       {
!           list_T *l = di->di_tv.vval.v_list;
  
!           wp->w_popup_mincol = tv_get_number(&l->lv_first->li_tv);
!           wp->w_popup_maxcol = tv_get_number(&l->lv_first->li_next->li_tv);
!       }
!       else
!           semsg(_(e_invarg2), tv_get_string(&di->di_tv));
      }
  
      di = dict_find(dict, (char_u *)"filter", -1);
--- 617,630 ----
      if (di != NULL)
      {
        set_moved_values(wp);
!       handle_moved_argument(wp, di, FALSE);
!     }
  
!     di = dict_find(dict, (char_u *)"mousemoved", -1);
!     if (di != NULL)
!     {
!       set_mousemoved_values(wp);
!       handle_moved_argument(wp, di, TRUE);
      }
  
      di = dict_find(dict, (char_u *)"filter", -1);
***************
*** 956,961 ****
--- 1015,1021 ----
  {
      TYPE_NORMAL,
      TYPE_ATCURSOR,
+     TYPE_BEVAL,
      TYPE_NOTIFICATION,
      TYPE_DIALOG,
      TYPE_MENU
***************
*** 1137,1153 ****
      {
        wp->w_popup_pos = POPPOS_BOTLEFT;
        setcursor_mayforce(TRUE);
!       wp->w_wantline = screen_screenrow();
        if (wp->w_wantline == 0)  // cursor in first line
        {
            wp->w_wantline = 2;
            wp->w_popup_pos = POPPOS_TOPLEFT;
        }
!       wp->w_wantcol = screen_screencol() + 1;
        set_moved_values(wp);
        set_moved_columns(wp, FIND_STRING);
      }
  
      // set default values
      wp->w_zindex = POPUPWIN_DEFAULT_ZINDEX;
      wp->w_popup_close = POPCLOSE_NONE;
--- 1197,1229 ----
      {
        wp->w_popup_pos = POPPOS_BOTLEFT;
        setcursor_mayforce(TRUE);
!       wp->w_wantline = curwin->w_winrow + curwin->w_wrow;
        if (wp->w_wantline == 0)  // cursor in first line
        {
            wp->w_wantline = 2;
            wp->w_popup_pos = POPPOS_TOPLEFT;
        }
!       wp->w_wantcol = curwin->w_wincol + curwin->w_wcol + 1;
        set_moved_values(wp);
        set_moved_columns(wp, FIND_STRING);
      }
  
+     if (type == TYPE_BEVAL)
+     {
+       wp->w_popup_pos = POPPOS_BOTLEFT;
+ 
+       // by default use the mouse position
+       wp->w_wantline = mouse_row;
+       if (wp->w_wantline <= 0)  // mouse on first line
+       {
+           wp->w_wantline = 2;
+           wp->w_popup_pos = POPPOS_TOPLEFT;
+       }
+       wp->w_wantcol = mouse_col + 1;
+       set_mousemoved_values(wp);
+       set_mousemoved_columns(wp, FIND_IDENT + FIND_STRING + FIND_EVAL);
+     }
+ 
      // set default values
      wp->w_zindex = POPUPWIN_DEFAULT_ZINDEX;
      wp->w_popup_close = POPCLOSE_NONE;
***************
*** 1276,1281 ****
--- 1352,1366 ----
  }
  
  /*
+  * popup_beval({text}, {options})
+  */
+     void
+ f_popup_beval(typval_T *argvars, typval_T *rettv)
+ {
+     popup_create(argvars, rettv, TYPE_BEVAL);
+ }
+ 
+ /*
   * Invoke the close callback for window "wp" with value "result".
   * Careful: The callback may make "wp" invalid!
   */
***************
*** 1334,1339 ****
--- 1419,1466 ----
      popup_close_and_callback(wp, &res);
  }
  
+     static void
+ check_mouse_moved(win_T *wp, win_T *mouse_wp)
+ {
+     // Close the popup when all if these are true:
+     // - the mouse is not on this popup
+     // - "mousemoved" was used
+     // - the mouse is no longer on the same screen row or the mouse column is
+     //   outside of the relevant text
+     if (wp != mouse_wp
+           && wp->w_popup_mouse_row != 0
+           && (wp->w_popup_mouse_row != mouse_row
+               || mouse_col < wp->w_popup_mouse_mincol
+               || mouse_col > wp->w_popup_mouse_maxcol))
+     {
+       typval_T res;
+ 
+       res.v_type = VAR_NUMBER;
+       res.vval.v_number = -2;
+       popup_close_and_callback(wp, &res);
+     }
+ }
+ 
+ /*
+  * Called when the mouse moved: may close a popup with "mousemoved".
+  */
+     void
+ popup_handle_mouse_moved(void)
+ {
+     win_T   *wp;
+     win_T   *mouse_wp;
+     int           row = mouse_row;
+     int           col = mouse_col;
+ 
+     // find the window where the mouse is in
+     mouse_wp = mouse_find_win(&row, &col, FIND_POPUP);
+ 
+     for (wp = first_popupwin; wp != NULL; wp = wp->w_next)
+       check_mouse_moved(wp, mouse_wp);
+     for (wp = curtab->tp_first_popupwin; wp != NULL; wp = wp->w_next)
+       check_mouse_moved(wp, mouse_wp);
+ }
+ 
  /*
   * In a filter: check if the typed key is a mouse event that is used for
   * dragging the popup.
***************
*** 1821,1827 ****
  }
  
  /*
!  * For popup_getoptions(): add a "moved" entry to "dict".
   */
      static void
  get_moved_list(dict_T *dict, win_T *wp)
--- 1948,1954 ----
  }
  
  /*
!  * For popup_getoptions(): add a "moved" and "mousemoved" entry to "dict".
   */
      static void
  get_moved_list(dict_T *dict, win_T *wp)
***************
*** 1832,1840 ****
--- 1959,1976 ----
      if (list != NULL)
      {
        dict_add_list(dict, "moved", list);
+       list_append_number(list, wp->w_popup_lnum);
        list_append_number(list, wp->w_popup_mincol);
        list_append_number(list, wp->w_popup_maxcol);
      }
+     list = list_alloc();
+     if (list != NULL)
+     {
+       dict_add_list(dict, "mousemoved", list);
+       list_append_number(list, wp->w_popup_mouse_row);
+       list_append_number(list, wp->w_popup_mouse_mincol);
+       list_append_number(list, wp->w_popup_mouse_maxcol);
+     }
  }
  
  /*
*** ../vim-8.1.1644/src/proto/popupwin.pro      2019-06-30 18:04:53.793559360 
+0200
--- src/proto/popupwin.pro      2019-07-06 17:06:06.122751209 +0200
***************
*** 11,17 ****
--- 11,19 ----
  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);
+ void f_popup_beval(typval_T *argvars, typval_T *rettv);
  void popup_close_for_mouse_click(win_T *wp);
+ void popup_handle_mouse_moved(void);
  void f_popup_filter_menu(typval_T *argvars, typval_T *rettv);
  void f_popup_filter_yesno(typval_T *argvars, typval_T *rettv);
  void f_popup_dialog(typval_T *argvars, typval_T *rettv);
*** ../vim-8.1.1644/src/move.c  2019-03-30 18:46:57.356077354 +0100
--- src/move.c  2019-07-07 17:02:20.284693207 +0200
***************
*** 1189,1194 ****
--- 1189,1284 ----
      curwin->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL;
  }
  
+ #if defined(FEAT_EVAL) || defined(PROTO)
+ /*
+  * Compute the screen position of text character at "pos" in window "wp"
+  * The resulting values are one-based, zero when character is not visible.
+  */
+     static void
+ textpos2screenpos(
+       win_T   *wp,
+       pos_T   *pos,
+       int     *rowp,  // screen row
+       int     *scolp, // start screen column
+       int     *ccolp, // cursor screen column
+       int     *ecolp) // end screen column
+ {
+     colnr_T   scol = 0, ccol = 0, ecol = 0;
+     int               row = 0;
+     int               rowoff = 0;
+     colnr_T   coloff = 0;
+ 
+     if (pos->lnum >= wp->w_topline && pos->lnum < wp->w_botline)
+     {
+       colnr_T off;
+       colnr_T col;
+       int     width;
+ 
+       row = plines_m_win(wp, wp->w_topline, pos->lnum - 1) + 1;
+       getvcol(wp, pos, &scol, &ccol, &ecol);
+ 
+       // similar to what is done in validate_cursor_col()
+       col = scol;
+       off = win_col_off(wp);
+       col += off;
+       width = wp->w_width - off + win_col_off2(wp);
+ 
+       /* long line wrapping, adjust row */
+       if (wp->w_p_wrap
+               && col >= (colnr_T)wp->w_width
+               && width > 0)
+       {
+           /* use same formula as what is used in curs_columns() */
+           rowoff = ((col - wp->w_width) / width + 1);
+           col -= rowoff * width;
+       }
+       col -= wp->w_leftcol;
+       if (col >= width)
+           col = -1;
+       if (col >= 0)
+           coloff = col - scol + wp->w_wincol + 1;
+       else
+           // character is left or right of the window
+           row = scol = ccol = ecol = 0;
+     }
+     *rowp = wp->w_winrow + row + rowoff;
+     *scolp = scol + coloff;
+     *ccolp = ccol + coloff;
+     *ecolp = ecol + coloff;
+ }
+ 
+ /*
+  * "screenpos({winid}, {lnum}, {col})" function
+  */
+     void
+ f_screenpos(typval_T *argvars UNUSED, typval_T *rettv)
+ {
+     dict_T    *dict;
+     win_T     *wp;
+     pos_T     pos;
+     int               row = 0;
+     int               scol = 0, ccol = 0, ecol = 0;
+ 
+     if (rettv_dict_alloc(rettv) != OK)
+       return;
+     dict = rettv->vval.v_dict;
+ 
+     wp = find_win_by_nr_or_id(&argvars[0]);
+     if (wp == NULL)
+       return;
+ 
+     pos.lnum = tv_get_number(&argvars[1]);
+     pos.col = tv_get_number(&argvars[2]) - 1;
+     pos.coladd = 0;
+     textpos2screenpos(wp, &pos, &row, &scol, &ccol, &ecol);
+ 
+     dict_add_number(dict, "row", row);
+     dict_add_number(dict, "col", scol);
+     dict_add_number(dict, "curscol", ccol);
+     dict_add_number(dict, "endcol", ecol);
+ }
+ #endif
+ 
  /*
   * Scroll the current window down by "line_count" logical lines.  "CTRL-Y"
   */
*** ../vim-8.1.1644/src/proto/move.pro  2019-01-31 13:22:28.068543628 +0100
--- src/proto/move.pro  2019-07-07 17:02:26.788661232 +0200
***************
*** 27,32 ****
--- 27,33 ----
  int win_col_off2(win_T *wp);
  int curwin_col_off2(void);
  void curs_columns(int may_scroll);
+ void f_screenpos(typval_T *argvars, typval_T *rettv);
  void scrolldown(long line_count, int byfold);
  void scrollup(long line_count, int byfold);
  void check_topfill(win_T *wp, int down);
*** ../vim-8.1.1644/src/beval.c 2019-06-12 20:21:57.737817533 +0200
--- src/beval.c 2019-07-07 16:31:17.941627410 +0200
***************
*** 14,20 ****
  
  /*
   * Get the text and position to be evaluated for "beval".
!  * If "getword" is true the returned text is not the whole line but the
   * relevant word in allocated memory.
   * Returns OK or FAIL.
   */
--- 14,20 ----
  
  /*
   * Get the text and position to be evaluated for "beval".
!  * If "getword" is TRUE the returned text is not the whole line but the
   * relevant word in allocated memory.
   * Returns OK or FAIL.
   */
***************
*** 27,38 ****
      char_u    **textp,
      int               *colp)
  {
-     win_T     *wp;
      int               row, col;
-     char_u    *lbuf;
-     linenr_T  lnum;
  
-     *textp = NULL;
  # ifdef FEAT_BEVAL_TERM
  #  ifdef FEAT_GUI
      if (!gui.in_use)
--- 27,34 ----
***************
*** 49,70 ****
        col = X_2_COL(beval->x);
      }
  #endif
      wp = mouse_find_win(&row, &col, FAIL_POPUP);
      if (wp != NULL && row >= 0 && row < wp->w_height && col < wp->w_width)
      {
!       /* Found a window and the cursor is in the text.  Now find the line
!        * number. */
        if (!mouse_comp_pos(wp, &row, &col, &lnum))
        {
!           /* Not past end of the file. */
            lbuf = ml_get_buf(wp->w_buffer, lnum, FALSE);
            if (col <= win_linetabsize(wp, lbuf, (colnr_T)MAXCOL))
            {
!               /* Not past end of line. */
                if (getword)
                {
!                   /* For Netbeans we get the relevant part of the line
!                    * instead of the whole line. */
                    int         len;
                    pos_T       *spos = NULL, *epos = NULL;
  
--- 45,112 ----
        col = X_2_COL(beval->x);
      }
  #endif
+     if (find_word_under_cursor(row, col, getword,
+               FIND_IDENT + FIND_STRING + FIND_EVAL,
+               winp, lnump, textp, colp) == OK)
+     {
+ #ifdef FEAT_VARTABS
+       vim_free(beval->vts);
+       beval->vts = tabstop_copy((*winp)->w_buffer->b_p_vts_array);
+       if ((*winp)->w_buffer->b_p_vts_array != NULL && beval->vts == NULL)
+       {
+           if (getword)
+               vim_free(*textp);
+           return FAIL;
+       }
+ #endif
+       beval->ts = (*winp)->w_buffer->b_p_ts;
+       return OK;
+     }
+ 
+     return FAIL;
+ }
+ 
+ /*
+  * Find text under the mouse position "row" / "col".
+  * If "getword" is TRUE the returned text in "*textp" is not the whole line 
but
+  * the relevant word in allocated memory.
+  * Return OK if found.
+  * Return FAIL if not found, no text at the mouse position.
+  */
+     int
+ find_word_under_cursor(
+       int         mouserow,
+       int         mousecol,
+       int         getword,
+       int         flags,      // flags for find_ident_at_pos()
+       win_T       **winp,     // can be NULL
+       linenr_T    *lnump,     // can be NULL
+       char_u      **textp,
+       int         *colp)
+ {
+     int               row = mouserow;
+     int               col = mousecol;
+     win_T     *wp;
+     char_u    *lbuf;
+     linenr_T  lnum;
+ 
+     *textp = NULL;
      wp = mouse_find_win(&row, &col, FAIL_POPUP);
      if (wp != NULL && row >= 0 && row < wp->w_height && col < wp->w_width)
      {
!       // Found a window and the cursor is in the text.  Now find the line
!       // number.
        if (!mouse_comp_pos(wp, &row, &col, &lnum))
        {
!           // Not past end of the file.
            lbuf = ml_get_buf(wp->w_buffer, lnum, FALSE);
            if (col <= win_linetabsize(wp, lbuf, (colnr_T)MAXCOL))
            {
!               // Not past end of line.
                if (getword)
                {
!                   // For Netbeans we get the relevant part of the line
!                   // instead of the whole line.
                    int         len;
                    pos_T       *spos = NULL, *epos = NULL;
  
***************
*** 93,101 ****
                                ? col <= (int)epos->col
                                : lnum < epos->lnum))
                    {
!                       /* Visual mode and pointing to the line with the
!                        * Visual selection: return selected text, with a
!                        * maximum of one line. */
                        if (spos->lnum != epos->lnum || spos->col == epos->col)
                            return FAIL;
  
--- 135,143 ----
                                ? col <= (int)epos->col
                                : lnum < epos->lnum))
                    {
!                       // Visual mode and pointing to the line with the
!                       // Visual selection: return selected text, with a
!                       // maximum of one line.
                        if (spos->lnum != epos->lnum || spos->col == epos->col)
                            return FAIL;
  
***************
*** 109,118 ****
                    }
                    else
                    {
!                       /* Find the word under the cursor. */
                        ++emsg_off;
                        len = find_ident_at_pos(wp, lnum, (colnr_T)col, &lbuf,
!                                       FIND_IDENT + FIND_STRING + FIND_EVAL);
                        --emsg_off;
                        if (len == 0)
                            return FAIL;
--- 151,160 ----
                    }
                    else
                    {
!                       // Find the word under the cursor.
                        ++emsg_off;
                        len = find_ident_at_pos(wp, lnum, (colnr_T)col, &lbuf,
!                                                                       flags);
                        --emsg_off;
                        if (len == 0)
                            return FAIL;
***************
*** 120,141 ****
                    }
                }
  
!               *winp = wp;
!               *lnump = lnum;
                *textp = lbuf;
                *colp = col;
- #ifdef FEAT_VARTABS
-               vim_free(beval->vts);
-               beval->vts = tabstop_copy(wp->w_buffer->b_p_vts_array);
-               if (wp->w_buffer->b_p_vts_array != NULL && beval->vts == NULL)
-                   return FAIL;
- #endif
-               beval->ts = wp->w_buffer->b_p_ts;
                return OK;
            }
        }
      }
- 
      return FAIL;
  }
  
--- 162,177 ----
                    }
                }
  
!               if (winp != NULL)
!                   *winp = wp;
!               if (lnump != NULL)
!                   *lnump = lnum;
                *textp = lbuf;
                *colp = col;
                return OK;
            }
        }
      }
      return FAIL;
  }
  
*** ../vim-8.1.1644/src/proto/beval.pro 2018-05-17 13:52:56.000000000 +0200
--- src/proto/beval.pro 2019-07-07 16:04:03.689341355 +0200
***************
*** 1,5 ****
--- 1,6 ----
  /* beval.c */
  int get_beval_info(BalloonEval *beval, int getword, win_T **winp, linenr_T 
*lnump, char_u **textp, int *colp);
+ int find_word_under_cursor(int mouserow, int mousecol, int getword, int 
flags, win_T **winp, linenr_T *lnump, char_u **textp, int *colp);
  void post_balloon(BalloonEval *beval, char_u *mesg, list_T *list);
  int can_use_beval(void);
  void general_beval_cb(BalloonEval *beval, int state);
*** ../vim-8.1.1644/src/evalfunc.c      2019-07-04 15:39:23.823385977 +0200
--- src/evalfunc.c      2019-07-06 15:58:24.308858997 +0200
***************
*** 771,776 ****
--- 771,777 ----
  #endif
  #ifdef FEAT_TEXT_PROP
      {"popup_atcursor",        2, 2, f_popup_atcursor},
+     {"popup_beval",   2, 2, f_popup_beval},
      {"popup_clear",   0, 0, f_popup_clear},
      {"popup_close",   1, 2, f_popup_close},
      {"popup_create",  2, 2, f_popup_create},
***************
*** 849,854 ****
--- 850,856 ----
      {"screenchar",    2, 2, f_screenchar},
      {"screenchars",   2, 2, f_screenchars},
      {"screencol",     0, 0, f_screencol},
+     {"screenpos",     3, 3, f_screenpos},
      {"screenrow",     0, 0, f_screenrow},
      {"screenstring",  2, 2, f_screenstring},
      {"search",                1, 4, f_search},
*** ../vim-8.1.1644/src/popupmnu.c      2019-06-15 19:37:11.680608505 +0200
--- src/popupmnu.c      2019-07-06 16:41:49.828506031 +0200
***************
*** 992,999 ****
  # if defined(FEAT_BEVAL_TERM) || defined(PROTO)
  static pumitem_T *balloon_array = NULL;
  static int balloon_arraysize;
- static int balloon_mouse_row = 0;
- static int balloon_mouse_col = 0;
  
  #define BALLOON_MIN_WIDTH 50
  #define BALLOON_MIN_HEIGHT 10
--- 992,997 ----
***************
*** 1209,1216 ****
      void
  ui_may_remove_balloon(void)
  {
!     if (mouse_row != balloon_mouse_row || mouse_col != balloon_mouse_col)
!       ui_remove_balloon();
  }
  # endif
  
--- 1207,1215 ----
      void
  ui_may_remove_balloon(void)
  {
!     // For now: remove the balloon whenever the mouse moves to another screen
!     // cell.
!     ui_remove_balloon();
  }
  # endif
  
*** ../vim-8.1.1644/src/normal.c        2019-06-30 22:16:06.931821750 +0200
--- src/normal.c        2019-07-06 16:43:04.132100090 +0200
***************
*** 2329,2334 ****
--- 2329,2337 ----
            bevalexpr_due_set = TRUE;
        }
  #endif
+ #ifdef FEAT_TEXT_PROP
+       popup_handle_mouse_moved();
+ #endif
        return FALSE;
      }
  
*** ../vim-8.1.1644/src/testdir/test_popupwin.vim       2019-07-05 
21:53:14.939268472 +0200
--- src/testdir/test_popupwin.vim       2019-07-07 18:18:14.652578345 +0200
***************
*** 1005,1010 ****
--- 1005,1057 ----
    bwipe!
  endfunc
  
+ func Test_popup_beval()
+   if !CanRunVimInTerminal()
+     throw 'Skipped: cannot make screendumps'
+   endif
+ 
+   let lines =<< trim END
+       call setline(1, range(1, 20))
+       call setline(5, 'here is some text to hover over')
+       set balloonevalterm
+       set balloonexpr=BalloonExpr()
+       set balloondelay=100
+       func BalloonExpr()
+         let s:winid = popup_beval([v:beval_text], {})
+         return ''
+       endfunc
+       func Hover()
+         call test_setmouse(5, 15)
+         call feedkeys("\<MouseMove>\<Ignore>", "xt")
+         sleep 100m
+       endfunc
+       func MoveOntoPopup()
+         call test_setmouse(4, 17)
+         call feedkeys("\<F4>\<MouseMove>\<Ignore>", "xt")
+       endfunc
+       func MoveAway()
+         call test_setmouse(5, 13)
+         call feedkeys("\<F5>\<MouseMove>\<Ignore>", "xt")
+       endfunc
+   END
+   call writefile(lines, 'XtestPopupBeval')
+   let buf = RunVimInTerminal('-S XtestPopupBeval', {'rows': 10})
+   call term_wait(buf, 100)
+   call term_sendkeys(buf, 'j')
+   call term_sendkeys(buf, ":call Hover()\<CR>")
+   call VerifyScreenDump(buf, 'Test_popupwin_beval_1', {})
+ 
+   call term_sendkeys(buf, ":call MoveOntoPopup()\<CR>")
+   call VerifyScreenDump(buf, 'Test_popupwin_beval_2', {})
+ 
+   call term_sendkeys(buf, ":call MoveAway()\<CR>")
+   call VerifyScreenDump(buf, 'Test_popupwin_beval_3', {})
+ 
+   " clean up
+   call StopVimInTerminal(buf)
+   call delete('XtestPopupBeval')
+ endfunc
+ 
  func Test_popup_filter()
    new
    call setline(1, 'some text')
***************
*** 1413,1419 ****
    let winid = popup_atcursor('text', {'moved': 'any'})
    redraw
    call assert_equal(1, popup_getpos(winid).visible)
!   call assert_equal([4, 4], popup_getoptions(winid).moved)
    " trigger the check for last_cursormoved by going into insert mode
    call feedkeys("li\<Esc>", 'xt')
    call assert_equal({}, popup_getpos(winid))
--- 1460,1466 ----
    let winid = popup_atcursor('text', {'moved': 'any'})
    redraw
    call assert_equal(1, popup_getpos(winid).visible)
!   call assert_equal([1, 4, 4], popup_getoptions(winid).moved)
    " trigger the check for last_cursormoved by going into insert mode
    call feedkeys("li\<Esc>", 'xt')
    call assert_equal({}, popup_getpos(winid))
***************
*** 1423,1429 ****
    let winid = popup_atcursor('text', {'moved': 'word'})
    redraw
    call assert_equal(1, popup_getpos(winid).visible)
!   call assert_equal([4, 7], popup_getoptions(winid).moved)
    call feedkeys("hi\<Esc>", 'xt')
    call assert_equal({}, popup_getpos(winid))
    call popup_clear()
--- 1470,1476 ----
    let winid = popup_atcursor('text', {'moved': 'word'})
    redraw
    call assert_equal(1, popup_getpos(winid).visible)
!   call assert_equal([1, 4, 7], popup_getoptions(winid).moved)
    call feedkeys("hi\<Esc>", 'xt')
    call assert_equal({}, popup_getpos(winid))
    call popup_clear()
***************
*** 1432,1438 ****
    let winid = popup_atcursor('text', {'moved': 'word'})
    redraw
    call assert_equal(1, popup_getpos(winid).visible)
!   call assert_equal([4, 7], popup_getoptions(winid).moved)
    call feedkeys("li\<Esc>", 'xt')
    call assert_equal(1, popup_getpos(winid).visible)
    call feedkeys("ei\<Esc>", 'xt')
--- 1479,1485 ----
    let winid = popup_atcursor('text', {'moved': 'word'})
    redraw
    call assert_equal(1, popup_getpos(winid).visible)
!   call assert_equal([1, 4, 7], popup_getoptions(winid).moved)
    call feedkeys("li\<Esc>", 'xt')
    call assert_equal(1, popup_getpos(winid).visible)
    call feedkeys("ei\<Esc>", 'xt')
***************
*** 1446,1452 ****
    let winid = popup_atcursor('text', {})
    redraw
    call assert_equal(1, popup_getpos(winid).visible)
!   call assert_equal([2, 15], popup_getoptions(winid).moved)
    call feedkeys("eli\<Esc>", 'xt')
    call assert_equal(1, popup_getpos(winid).visible)
    call feedkeys("wi\<Esc>", 'xt')
--- 1493,1499 ----
    let winid = popup_atcursor('text', {})
    redraw
    call assert_equal(1, popup_getpos(winid).visible)
!   call assert_equal([2, 2, 15], popup_getoptions(winid).moved)
    call feedkeys("eli\<Esc>", 'xt')
    call assert_equal(1, popup_getpos(winid).visible)
    call feedkeys("wi\<Esc>", 'xt')
*** ../vim-8.1.1644/src/testdir/test_cursor_func.vim    2019-05-16 
22:24:52.403017783 +0200
--- src/testdir/test_cursor_func.vim    2019-07-07 14:42:25.107175433 +0200
***************
*** 72,74 ****
--- 72,102 ----
    call assert_equal(6, winsaveview().curswant)
    quit!
  endfunc
+ 
+ func Test_screenpos()
+   rightbelow new
+   rightbelow 20vsplit
+   call setline(1, ["\tsome text", "long wrapping line here", "next line"])
+   redraw
+   let winid = win_getid()
+   let [winrow, wincol] = win_screenpos(winid)
+   call assert_equal({'row': winrow,
+       \ 'col': wincol + 0,
+       \ 'curscol': wincol + 7,
+       \ 'endcol': wincol + 7}, screenpos(winid, 1, 1))
+   call assert_equal({'row': winrow,
+       \ 'col': wincol + 13,
+       \ 'curscol': wincol + 13,
+       \ 'endcol': wincol + 13}, screenpos(winid, 1, 7))
+   call assert_equal({'row': winrow + 2,
+       \ 'col': wincol + 1,
+       \ 'curscol': wincol + 1,
+       \ 'endcol': wincol + 1}, screenpos(winid, 2, 22))
+   setlocal number
+   call assert_equal({'row': winrow + 3,
+       \ 'col': wincol + 9,
+       \ 'curscol': wincol + 9,
+       \ 'endcol': wincol + 9}, screenpos(winid, 2, 22))
+   close
+   bwipe!
+ endfunc
*** ../vim-8.1.1644/runtime/doc/popup.txt       2019-07-04 16:53:21.369654166 
+0200
--- runtime/doc/popup.txt       2019-07-07 17:12:34.957616704 +0200
***************
*** 146,151 ****
--- 146,153 ----
        |popup_create()|        centered in the screen
        |popup_atcursor()|      just above the cursor position, closes when
                                the cursor moves away
+       |popup_beval()|         at the position indicated by v:beval_
+                               variables, closes when the mouse moves away
        |popup_notification()|  show a notification for three seconds
        |popup_dialog()|        centered with padding and border
        |popup_menu()|          prompt for selecting an item from a list
***************
*** 184,189 ****
--- 186,205 ----
  <             Use {options} to change the properties.
  
  
+ popup_beval({what}, {options})                        *popup_beval()*
+               Show the {what} above the position from 'ballooneval' and
+               close it when the mouse moves.  This works like: >
+                 let pos = screenpos(v:beval_winnr, v:beval_lnum, v:beval_col)
+                 call popup_create({what}, {
+                       \ 'pos': 'botleft',
+                       \ 'line': pos.lnum - 1,
+                       \ 'col': pos.col,
+                       \ 'mousemoved': 'WORD',
+                       \ })
+ <             Use {options} to change the properties.
+               See |popup_beval_example| for an example use.
+ 
+ 
                                                        *popup_clear()*
  popup_clear() Emergency solution to a misbehaving plugin: close all popup
                windows for the current tab and global popups.
***************
*** 276,283 ****
                A zero value means the option was not set.  For "zindex" the
                default value is returned, not zero.
  
!               The "moved" entry is a list with minimum and maximum column,
!               [0, 0] when not set.
  
                "border" and "padding" are not included when all values are
                zero.  When all values are one then an empty list is included.
--- 292,302 ----
                A zero value means the option was not set.  For "zindex" the
                default value is returned, not zero.
  
!               The "moved" entry is a list with line number, minimum and
!               maximum column, [0, 0, 0] when not set.
! 
!               The "mousemoved" entry is a list with screen row, minimum and
!               maximum screen column, [0, 0, 0] when not set.
  
                "border" and "padding" are not included when all values are
                zero.  When all values are one then an empty list is included.
***************
*** 566,571 ****
--- 585,591 ----
                        - "any": if the cursor moved at all
                        - "word": if the cursor moved outside |<cword>|
                        - "WORD": if the cursor moved outside |<cWORD>|
+                       - "expr": if the cursor moved outside |<cexpr>|
                        - [{start}, {end}]: if the cursor moved before column
                          {start} or after {end}
                        The popup also closes if the cursor moves to another
***************
*** 736,740 ****
--- 756,800 ----
          return popup_filter_menu(a:id, a:key)
        endfunc
  <
+                                       *popup_beval_example*
+ Example for using a popup window for 'ballooneval': >
+ 
+       set ballooneval balloonevalterm
+       set balloonexpr=BalloonExpr()
+       let s:winid = 0
+ 
+       func BalloonExpr()
+         if s:winid
+           call popup_close(s:winid)
+           let s:winid = 0
+         endif
+         let s:winid = popup_beval([bufname(v:beval_bufnr), v:beval_text], {})
+         return ''
+       endfunc
+ <
+ If the text has to be obtained asynchronously return an empty string from the
+ expression function and call popup_beval() once the text is available.  In
+ this example similated with a timer callback: >
+ 
+       set ballooneval balloonevalterm
+       set balloonexpr=BalloonExpr()
+       let s:winid = 0
+ 
+       func BalloonExpr()
+         if s:winid
+           call popup_close(s:winid)
+           let s:winid = 0
+         endif
+         " simulate an asynchronous loopup for the text to display
+         let s:balloonFile = bufname(v:beval_bufnr)
+         let s:balloonWord = v:beval_text
+         call timer_start(100, 'ShowPopup')
+         return ''
+       endfunc
+ 
+       func ShowPopup(id)
+         let s:winid = popup_beval([s:balloonFile, s:balloonWord], {})
+       endfunc
+ <
  
   vim:tw=78:ts=8:noet:ft=help:norl:
*** ../vim-8.1.1644/runtime/doc/eval.txt        2019-07-04 17:11:16.799440884 
+0200
--- runtime/doc/eval.txt        2019-07-07 14:41:25.071768307 +0200
***************
*** 2534,2539 ****
--- 2535,2541 ----
  pathshorten({expr})           String  shorten directory names in a path
  perleval({expr})              any     evaluate |Perl| expression
  popup_atcursor({what}, {options}) Number create popup window near the cursor
+ popup_beval({what}, {options})        Number  create popup window for 
'ballooneval'
  popup_clear()                 none    close all popup windows
  popup_close({id} [, {result}])        none    close popup window {id}
  popup_create({what}, {options}) Number        create a popup window
***************
*** 2612,2617 ****
--- 2614,2620 ----
  screenchar({row}, {col})      Number  character at screen position
  screenchars({row}, {col})     List    List of characters at screen position
  screencol()                   Number  current cursor column
+ screenpos({winid}, {lnum}, {col}) Dict        screen row and col of a text 
character
  screenrow()                   Number  current cursor row
  screenstring({row}, {col})    String  characters at screen position
  search({pattern} [, {flags} [, {stopline} [, {timeout}]]])
***************
*** 7906,7911 ****
--- 7909,7931 ----
                        nnoremap <expr> GG ":echom ".screencol()."\n"
                        nnoremap <silent> GG :echom screencol()<CR>
  <
+ screenpos({winid}, {lnum}, {col})                             *screenpos()*
+               The result is a Dict with the screen position of the text
+               character in window {winid} at buffer line {lnum} and column
+               {col}.  {col} is a one-based byte index.
+               The Dict has these members:
+                       row     screen row
+                       col     first screen column
+                       endcol  last screen column
+                       curscol cursor screen column
+               If the specified position is not visible, all values are zero.
+               The "endcol" value differs from "col" when the character
+               occupies more than one screen cell.  E.g. for a Tab "col" can
+               be 1 and "endcol" can be 8.
+               The "curscol" value is where the cursor would be placed.  For
+               a Tab it would be the same as "endcol", while for a double
+               width character it would be the same as "col".
+ 
  screenrow()                                                   *screenrow()*
                The result is a Number, which is the current screen row of the
                cursor.  The top line has number one.
*** ../vim-8.1.1644/runtime/doc/usr_41.txt      2019-07-04 16:53:21.373654143 
+0200
--- runtime/doc/usr_41.txt      2019-07-06 15:16:12.426341319 +0200
***************
*** 720,725 ****
--- 720,726 ----
        cursor()                position the cursor at a line/column
        screencol()             get screen column of the cursor
        screenrow()             get screen row of the cursor
+       screenpos()             screen row and col of a text character
        getcurpos()             get position of the cursor
        getpos()                get position of cursor, mark, etc.
        setpos()                set position of cursor, mark, etc.
***************
*** 1046,1051 ****
--- 1047,1054 ----
        popup_create()          create popup centered in the screen
        popup_atcursor()        create popup just above the cursor position,
                                closes when the cursor moves away
+       popup_beval()           at the position indicated by v:beval_
+                               variables, closes when the mouse moves away
        popup_notification()    show a notification for three seconds
        popup_dialog()          create popup centered with padding and border
        popup_menu()            prompt for selecting an item from a list
*** ../vim-8.1.1644/src/testdir/dumps/Test_popupwin_beval_1.dump        
2019-07-07 18:22:04.315270748 +0200
--- src/testdir/dumps/Test_popupwin_beval_1.dump        2019-07-07 
18:15:51.053411015 +0200
***************
*** 0 ****
--- 1,10 ----
+ |1+0&#ffffff0| @73
+ >2| @73
+ |3| @73
+ |4| @12|t+0#0000001#ffd7ff255|e|x|t| +0#0000000#ffffff0@56
+ |h|e|r|e| |i|s| |s|o|m|e| |t|e|x|t| |t|o| |h|o|v|e|r| |o|v|e|r| @43
+ |6| @73
+ |7| @73
+ |8| @73
+ |9| @73
+ |:|c|a|l@1| |H|o|v|e|r|(|)| @43|2|,|1| @10|T|o|p| 
*** ../vim-8.1.1644/src/testdir/dumps/Test_popupwin_beval_2.dump        
2019-07-07 18:22:04.319270725 +0200
--- src/testdir/dumps/Test_popupwin_beval_2.dump        2019-07-07 
18:18:55.720342601 +0200
***************
*** 0 ****
--- 1,10 ----
+ |1+0&#ffffff0| @73
+ >2| @73
+ |3| @73
+ |4| @12|t+0#0000001#ffd7ff255|e|x|t| +0#0000000#ffffff0@56
+ |h|e|r|e| |i|s| |s|o|m|e| |t|e|x|t| |t|o| |h|o|v|e|r| |o|v|e|r| @43
+ |6| @73
+ |7| @73
+ |8| @73
+ |9| @73
+ |:|c|a|l@1| |M|o|v|e|O|n|t|o|P|o|p|u|p|(|)| @35|2|,|1| @10|T|o|p| 
*** ../vim-8.1.1644/src/testdir/dumps/Test_popupwin_beval_3.dump        
2019-07-07 18:22:04.323270704 +0200
--- src/testdir/dumps/Test_popupwin_beval_3.dump        2019-07-07 
18:16:43.881103039 +0200
***************
*** 0 ****
--- 1,10 ----
+ |1+0&#ffffff0| @73
+ >2| @73
+ |3| @73
+ |4| @73
+ |h|e|r|e| |i|s| |s|o|m|e| |t|e|x|t| |t|o| |h|o|v|e|r| |o|v|e|r| @43
+ |6| @73
+ |7| @73
+ |8| @73
+ |9| @73
+ |:|c|a|l@1| |M|o|v|e|A|w|a|y|(|)| @40|2|,|1| @10|T|o|p| 
*** ../vim-8.1.1644/src/version.c       2019-07-07 15:12:08.765146251 +0200
--- src/version.c       2019-07-07 18:19:47.056049202 +0200
***************
*** 779,780 ****
--- 779,782 ----
  {   /* Add new patch number below this line */
+ /**/
+     1645,
  /**/

-- 
ARTHUR:  Well, I can't just call you `Man'.
DENNIS:  Well, you could say `Dennis'.
ARTHUR:  Well, I didn't know you were called `Dennis.'
DENNIS:  Well, you didn't bother to find out, did you?
                                  The Quest for the Holy Grail (Monty Python)

 /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///

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