Introduce nvim namespace: Move files.

Move files from src/ to src/nvim/.
- src/nvim/ becomes the new root dir for nvim executable sources.
- src/libnvim/ is planned to become root dir of the neovim library.

1 files changed, 0 insertions, 963 deletions

diff --git a/src/ui.c b/src/ui.c
deleted file mode 100644
index 4678416200..0000000000
--- a/src/ui.c
+++ /dev/null
@@ -1,963 +0,0 @@
-/*
- * VIM - Vi IMproved	by Bram Moolenaar
- *
- * Do ":help uganda"  in Vim to read copying and usage conditions.
- * Do ":help credits" in Vim to see a list of people who contributed.
- * See README.txt for an overview of the Vim source code.
- */
-
-/*
- * ui.c: functions that handle the user interface.
- * 1. Keyboard input stuff, and a bit of windowing stuff.  These are called
- *    before the machine specific stuff (mch_*) so that we can call the GUI
- *    stuff instead if the GUI is running.
- * 2. Clipboard stuff.
- * 3. Input buffer stuff.
- */
-
-#include <string.h>
-
-#include "vim.h"
-#include "ui.h"
-#include "diff.h"
-#include "ex_cmds2.h"
-#include "fold.h"
-#include "main.h"
-#include "mbyte.h"
-#include "misc1.h"
-#include "misc2.h"
-#include "garray.h"
-#include "memory.h"
-#include "move.h"
-#include "normal.h"
-#include "option.h"
-#include "os_unix.h"
-#include "os/time.h"
-#include "os/input.h"
-#include "os/signal.h"
-#include "screen.h"
-#include "term.h"
-#include "window.h"
-
-void ui_write(char_u *s, int len)
-{
-#ifndef NO_CONSOLE
-  /* Don't output anything in silent mode ("ex -s") unless 'verbose' set */
-  if (!(silent_mode && p_verbose == 0)) {
-    char_u  *tofree = NULL;
-
-    if (output_conv.vc_type != CONV_NONE) {
-      /* Convert characters from 'encoding' to 'termencoding'. */
-      tofree = string_convert(&output_conv, s, &len);
-      if (tofree != NULL)
-        s = tofree;
-    }
-
-    mch_write(s, len);
-
-    if (output_conv.vc_type != CONV_NONE)
-      free(tofree);
-  }
-#endif
-}
-
-/*
- * ui_inchar(): low level input function.
- * Get characters from the keyboard.
- * Return the number of characters that are available.
- * If "wtime" == 0 do not wait for characters.
- * If "wtime" == -1 wait forever for characters.
- * If "wtime" > 0 wait "wtime" milliseconds for a character.
- *
- * "tb_change_cnt" is the value of typebuf.tb_change_cnt if "buf" points into
- * it.  When typebuf.tb_change_cnt changes (e.g., when a message is received
- * from a remote client) "buf" can no longer be used.  "tb_change_cnt" is NULL
- * otherwise.
- */
-int 
-ui_inchar (
-    char_u *buf,
-    int maxlen,
-    long wtime,                 /* don't use "time", MIPS cannot handle it */
-    int tb_change_cnt
-)
-{
-  int retval = 0;
-
-
-  if (do_profiling == PROF_YES && wtime != 0)
-    prof_inchar_enter();
-
-#ifdef NO_CONSOLE_INPUT
-  /* Don't wait for character input when the window hasn't been opened yet.
-   * Do try reading, this works when redirecting stdin from a file.
-   * Must return something, otherwise we'll loop forever.  If we run into
-   * this very often we probably got stuck, exit Vim. */
-  if (no_console_input()) {
-    static int count = 0;
-
-# ifndef NO_CONSOLE
-    retval = os_inchar(buf, maxlen, (wtime >= 0 && wtime < 10)
-        ? 10L : wtime, tb_change_cnt);
-    if (retval > 0 || typebuf_changed(tb_change_cnt) || wtime >= 0)
-      goto theend;
-# endif
-    if (wtime == -1 && ++count == 1000)
-      read_error_exit();
-    buf[0] = CAR;
-    retval = 1;
-    goto theend;
-  }
-#endif
-
-  /* If we are going to wait for some time or block... */
-  if (wtime == -1 || wtime > 100L) {
-    /* ... allow signals to kill us. */
-    signal_accept_deadly();
-
-    /* ... there is no need for CTRL-C to interrupt something, don't let
-     * it set got_int when it was mapped. */
-    if (mapped_ctrl_c)
-      ctrl_c_interrupts = FALSE;
-  }
-
-#ifndef NO_CONSOLE
-  {
-    retval = os_inchar(buf, maxlen, wtime, tb_change_cnt);
-  }
-#endif
-
-  if (wtime == -1 || wtime > 100L)
-    /* block SIGHUP et al. */
-    signal_reject_deadly();
-
-  ctrl_c_interrupts = TRUE;
-
-#ifdef NO_CONSOLE_INPUT
-theend:
-#endif
-  if (do_profiling == PROF_YES && wtime != 0)
-    prof_inchar_exit();
-  return retval;
-}
-
-/*
- * return non-zero if a character is available
- */
-int ui_char_avail(void)
-{
-#ifndef NO_CONSOLE
-# ifdef NO_CONSOLE_INPUT
-  if (no_console_input())
-    return 0;
-# endif
-  return os_char_avail();
-#else
-  return 0;
-#endif
-}
-
-/*
- * Delay for the given number of milliseconds.	If ignoreinput is FALSE then we
- * cancel the delay if a key is hit.
- */
-void ui_delay(long msec, int ignoreinput)
-{
-  os_delay(msec, ignoreinput);
-}
-
-/*
- * If the machine has job control, use it to suspend the program,
- * otherwise fake it by starting a new shell.
- * When running the GUI iconify the window.
- */
-void ui_suspend(void)
-{
-  mch_suspend();
-}
-
-/*
- * Try to get the current Vim shell size.  Put the result in Rows and Columns.
- * Use the new sizes as defaults for 'columns' and 'lines'.
- * Return OK when size could be determined, FAIL otherwise.
- */
-int ui_get_shellsize(void)
-{
-  int retval;
-
-  retval = mch_get_shellsize();
-
-  check_shellsize();
-
-  /* adjust the default for 'lines' and 'columns' */
-  if (retval == OK) {
-    set_number_default("lines", Rows);
-    set_number_default("columns", Columns);
-  }
-  return retval;
-}
-
-/*
- * Set the size of the Vim shell according to Rows and Columns, if possible.
- * The gui_set_shellsize() or mch_set_shellsize() function will try to set the
- * new size.  If this is not possible, it will adjust Rows and Columns.
- */
-void 
-ui_set_shellsize(int mustset)
-{
-  mch_set_shellsize();
-}
-
-void ui_breakcheck(void)
-{
-  os_breakcheck();
-}
-
-/*****************************************************************************
- * Functions for copying and pasting text between applications.
- * This is always included in a GUI version, but may also be included when the
- * clipboard and mouse is available to a terminal version such as xterm.
- * Note: there are some more functions in ops.c that handle selection stuff.
- *
- * Also note that the majority of functions here deal with the X 'primary'
- * (visible - for Visual mode use) selection, and only that. There are no
- * versions of these for the 'clipboard' selection, as Visual mode has no use
- * for them.
- */
-
-
-/*****************************************************************************
- * Functions that handle the input buffer.
- * This is used for any GUI version, and the unix terminal version.
- *
- * For Unix, the input characters are buffered to be able to check for a
- * CTRL-C.  This should be done with signals, but I don't know how to do that
- * in a portable way for a tty in RAW mode.
- *
- * For the client-server code in the console the received keys are put in the
- * input buffer.
- */
-
-#if defined(USE_INPUT_BUF) || defined(PROTO)
-
-/*
- * Internal typeahead buffer.  Includes extra space for long key code
- * descriptions which would otherwise overflow.  The buffer is considered full
- * when only this extra space (or part of it) remains.
- */
-# define INBUFLEN 4096
-
-static char_u inbuf[INBUFLEN + MAX_KEY_CODE_LEN];
-static int inbufcount = 0;          /* number of chars in inbuf[] */
-
-/*
- * vim_is_input_buf_full(), vim_is_input_buf_empty(), add_to_input_buf(), and
- * trash_input_buf() are functions for manipulating the input buffer.  These
- * are used by the gui_* calls when a GUI is used to handle keyboard input.
- */
-
-int vim_is_input_buf_full(void)
-{
-  return inbufcount >= INBUFLEN;
-}
-
-int vim_is_input_buf_empty(void)
-{
-  return inbufcount == 0;
-}
-
-/*
- * Return the current contents of the input buffer and make it empty.
- * The returned pointer must be passed to set_input_buf() later.
- */
-char_u *get_input_buf(void)
-{
-  garray_T    *gap;
-
-  /* We use a growarray to store the data pointer and the length. */
-  gap = (garray_T *)alloc((unsigned)sizeof(garray_T));
-  /* Add one to avoid a zero size. */
-  gap->ga_data = alloc((unsigned)inbufcount + 1);
-  if (gap->ga_data != NULL)
-    memmove(gap->ga_data, inbuf, (size_t)inbufcount);
-  gap->ga_len = inbufcount;
-
-  trash_input_buf();
-  return (char_u *)gap;
-}
-
-/*
- * Restore the input buffer with a pointer returned from get_input_buf().
- * The allocated memory is freed, this only works once!
- */
-void set_input_buf(char_u *p)
-{
-  garray_T    *gap = (garray_T *)p;
-
-  if (gap != NULL) {
-    if (gap->ga_data != NULL) {
-      memmove(inbuf, gap->ga_data, gap->ga_len);
-      inbufcount = gap->ga_len;
-      free(gap->ga_data);
-    }
-    free(gap);
-  }
-}
-
-#if defined(FEAT_GUI) \
-  || defined(FEAT_MOUSE_GPM) || defined(FEAT_SYSMOUSE) \
-  || defined(FEAT_XCLIPBOARD) || defined(PROTO)
-/*
- * Add the given bytes to the input buffer
- * Special keys start with CSI.  A real CSI must have been translated to
- * CSI KS_EXTRA KE_CSI.  K_SPECIAL doesn't require translation.
- */
-void add_to_input_buf(char_u *s, int len)
-{
-  if (inbufcount + len > INBUFLEN + MAX_KEY_CODE_LEN)
-    return;         /* Shouldn't ever happen! */
-
-  if ((State & (INSERT|CMDLINE)) && hangul_input_state_get())
-    if ((len = hangul_input_process(s, len)) == 0)
-      return;
-
-  while (len--)
-    inbuf[inbufcount++] = *s++;
-}
-#endif
-
-#if ((defined(FEAT_XIM) || defined(FEAT_DND)) && defined(FEAT_GUI_GTK)) \
-  || defined(FEAT_GUI_MSWIN) \
-  || defined(FEAT_GUI_MAC) \
-  || (defined(FEAT_MBYTE) && defined(FEAT_MBYTE_IME)) \
-  || (defined(FEAT_GUI) && (!defined(USE_ON_FLY_SCROLL) \
-  || defined(FEAT_MENU))) \
-  || defined(PROTO)
-/*
- * Add "str[len]" to the input buffer while escaping CSI bytes.
- */
-void add_to_input_buf_csi(char_u *str, int len)          {
-  int i;
-  char_u buf[2];
-
-  for (i = 0; i < len; ++i) {
-    add_to_input_buf(str + i, 1);
-    if (str[i] == CSI) {
-      /* Turn CSI into K_CSI. */
-      buf[0] = KS_EXTRA;
-      buf[1] = (int)KE_CSI;
-      add_to_input_buf(buf, 2);
-    }
-  }
-}
-
-#endif
-
-#if defined(FEAT_GUI) || defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) \
-  || defined(PROTO)
-/* Remove everything from the input buffer.  Called when ^C is found */
-void trash_input_buf(void)
-{
-  inbufcount = 0;
-}
-
-#endif
-
-/*
- * Read as much data from the input buffer as possible up to maxlen, and store
- * it in buf.
- * Note: this function used to be Read() in unix.c
- */
-int read_from_input_buf(char_u *buf, long maxlen)
-{
-  if (inbufcount == 0)          /* if the buffer is empty, fill it */
-    fill_input_buf(TRUE);
-  if (maxlen > inbufcount)
-    maxlen = inbufcount;
-  memmove(buf, inbuf, (size_t)maxlen);
-  inbufcount -= maxlen;
-  if (inbufcount)
-    memmove(inbuf, inbuf + maxlen, (size_t)inbufcount);
-  return (int)maxlen;
-}
-
-void fill_input_buf(int exit_on_error)
-{
-#if defined(UNIX) || defined(MACOS_X_UNIX)
-  int len;
-  int try;
-  static char_u *rest = NULL;       /* unconverted rest of previous read */
-  static int restlen = 0;
-  int unconverted;
-#endif
-
-#if defined(UNIX) || defined(MACOS_X_UNIX)
-  if (vim_is_input_buf_full())
-    return;
-  /*
-   * Fill_input_buf() is only called when we really need a character.
-   * If we can't get any, but there is some in the buffer, just return.
-   * If we can't get any, and there isn't any in the buffer, we give up and
-   * exit Vim.
-   */
-
-
-  if (rest != NULL) {
-    /* Use remainder of previous call, starts with an invalid character
-     * that may become valid when reading more. */
-    if (restlen > INBUFLEN - inbufcount)
-      unconverted = INBUFLEN - inbufcount;
-    else
-      unconverted = restlen;
-    memmove(inbuf + inbufcount, rest, unconverted);
-    if (unconverted == restlen) {
-      free(rest);
-      rest = NULL;
-    } else {
-      restlen -= unconverted;
-      memmove(rest, rest + unconverted, restlen);
-    }
-    inbufcount += unconverted;
-  } else
-    unconverted = 0;
-
-  len = 0;      /* to avoid gcc warning */
-  for (try = 0; try < 100; ++try) {
-    len = input_read(
-        (char *)inbuf + inbufcount,
-        (size_t)((INBUFLEN - inbufcount) / input_conv.vc_factor));
-
-    if (len > 0 || got_int)
-      break;
-
-    if (!exit_on_error)
-      return;
-  }
-
-  if (len <= 0 && !got_int)
-    read_error_exit();
-
-  if (got_int) {
-    /* Interrupted, pretend a CTRL-C was typed. */
-    inbuf[0] = 3;
-    inbufcount = 1;
-  } else {
-    /*
-     * May perform conversion on the input characters.
-     * Include the unconverted rest of the previous call.
-     * If there is an incomplete char at the end it is kept for the next
-     * time, reading more bytes should make conversion possible.
-     * Don't do this in the unlikely event that the input buffer is too
-     * small ("rest" still contains more bytes).
-     */
-    if (input_conv.vc_type != CONV_NONE) {
-      inbufcount -= unconverted;
-      len = convert_input_safe(inbuf + inbufcount,
-          len + unconverted, INBUFLEN - inbufcount,
-          rest == NULL ? &rest : NULL, &restlen);
-    }
-    while (len-- > 0) {
-      /*
-       * if a CTRL-C was typed, remove it from the buffer and set got_int
-       */
-      if (inbuf[inbufcount] == 3 && ctrl_c_interrupts) {
-        /* remove everything typed before the CTRL-C */
-        memmove(inbuf, inbuf + inbufcount, (size_t)(len + 1));
-        inbufcount = 0;
-        got_int = TRUE;
-      }
-      ++inbufcount;
-    }
-  }
-#endif /* UNIX */
-}
-#endif /* defined(UNIX) || defined(FEAT_GUI) */
-
-/*
- * Exit because of an input read error.
- */
-void read_error_exit(void)
-{
-  if (silent_mode)      /* Normal way to exit for "ex -s" */
-    getout(0);
-  STRCPY(IObuff, _("Vim: Error reading input, exiting...\n"));
-  preserve_exit();
-}
-
-/*
- * May update the shape of the cursor.
- */
-void ui_cursor_shape(void)
-{
-  term_cursor_shape();
-
-
-  conceal_check_cursur_line();
-}
-
-#if defined(FEAT_GUI) || defined(FEAT_RIGHTLEFT) \
-  || defined(FEAT_MBYTE) || defined(PROTO)
-/*
- * Check bounds for column number
- */
-int check_col(int col)
-{
-  if (col < 0)
-    return 0;
-  if (col >= (int)screen_Columns)
-    return (int)screen_Columns - 1;
-  return col;
-}
-
-/*
- * Check bounds for row number
- */
-int check_row(int row)
-{
-  if (row < 0)
-    return 0;
-  if (row >= (int)screen_Rows)
-    return (int)screen_Rows - 1;
-  return row;
-}
-#endif
-
-/*
- * Stuff for the X clipboard.  Shared between VMS and Unix.
- */
-
-/*
- * Move the cursor to the specified row and column on the screen.
- * Change current window if necessary.	Returns an integer with the
- * CURSOR_MOVED bit set if the cursor has moved or unset otherwise.
- *
- * The MOUSE_FOLD_CLOSE bit is set when clicked on the '-' in a fold column.
- * The MOUSE_FOLD_OPEN bit is set when clicked on the '+' in a fold column.
- *
- * If flags has MOUSE_FOCUS, then the current window will not be changed, and
- * if the mouse is outside the window then the text will scroll, or if the
- * mouse was previously on a status line, then the status line may be dragged.
- *
- * If flags has MOUSE_MAY_VIS, then VIsual mode will be started before the
- * cursor is moved unless the cursor was on a status line.
- * This function returns one of IN_UNKNOWN, IN_BUFFER, IN_STATUS_LINE or
- * IN_SEP_LINE depending on where the cursor was clicked.
- *
- * If flags has MOUSE_MAY_STOP_VIS, then Visual mode will be stopped, unless
- * the mouse is on the status line of the same window.
- *
- * If flags has MOUSE_DID_MOVE, nothing is done if the mouse didn't move since
- * the last call.
- *
- * If flags has MOUSE_SETPOS, nothing is done, only the current position is
- * remembered.
- */
-int 
-jump_to_mouse (
-    int flags,
-    int *inclusive,         /* used for inclusive operator, can be NULL */
-    int which_button               /* MOUSE_LEFT, MOUSE_RIGHT, MOUSE_MIDDLE */
-)
-{
-  static int on_status_line = 0;        /* #lines below bottom of window */
-  static int on_sep_line = 0;           /* on separator right of window */
-  static int prev_row = -1;
-  static int prev_col = -1;
-  static win_T *dragwin = NULL;         /* window being dragged */
-  static int did_drag = FALSE;          /* drag was noticed */
-
-  win_T       *wp, *old_curwin;
-  pos_T old_cursor;
-  int count;
-  int first;
-  int row = mouse_row;
-  int col = mouse_col;
-  int mouse_char;
-
-  mouse_past_bottom = FALSE;
-  mouse_past_eol = FALSE;
-
-  if (flags & MOUSE_RELEASED) {
-    /* On button release we may change window focus if positioned on a
-     * status line and no dragging happened. */
-    if (dragwin != NULL && !did_drag)
-      flags &= ~(MOUSE_FOCUS | MOUSE_DID_MOVE);
-    dragwin = NULL;
-    did_drag = FALSE;
-  }
-
-  if ((flags & MOUSE_DID_MOVE)
-      && prev_row == mouse_row
-      && prev_col == mouse_col) {
-retnomove:
-    /* before moving the cursor for a left click which is NOT in a status
-     * line, stop Visual mode */
-    if (on_status_line)
-      return IN_STATUS_LINE;
-    if (on_sep_line)
-      return IN_SEP_LINE;
-    if (flags & MOUSE_MAY_STOP_VIS) {
-      end_visual_mode();
-      redraw_curbuf_later(INVERTED);            /* delete the inversion */
-    }
-    return IN_BUFFER;
-  }
-
-  prev_row = mouse_row;
-  prev_col = mouse_col;
-
-  if (flags & MOUSE_SETPOS)
-    goto retnomove;                             /* ugly goto... */
-
-  /* Remember the character under the mouse, it might be a '-' or '+' in the
-   * fold column. */
-  if (row >= 0 && row < Rows && col >= 0 && col <= Columns
-      && ScreenLines != NULL)
-    mouse_char = ScreenLines[LineOffset[row] + col];
-  else
-    mouse_char = ' ';
-
-  old_curwin = curwin;
-  old_cursor = curwin->w_cursor;
-
-  if (!(flags & MOUSE_FOCUS)) {
-    if (row < 0 || col < 0)                     /* check if it makes sense */
-      return IN_UNKNOWN;
-
-    /* find the window where the row is in */
-    wp = mouse_find_win(&row, &col);
-    dragwin = NULL;
-    /*
-     * winpos and height may change in win_enter()!
-     */
-    if (row >= wp->w_height) {                  /* In (or below) status line */
-      on_status_line = row - wp->w_height + 1;
-      dragwin = wp;
-    } else
-      on_status_line = 0;
-    if (col >= wp->w_width) {           /* In separator line */
-      on_sep_line = col - wp->w_width + 1;
-      dragwin = wp;
-    } else
-      on_sep_line = 0;
-
-    /* The rightmost character of the status line might be a vertical
-     * separator character if there is no connecting window to the right. */
-    if (on_status_line && on_sep_line) {
-      if (stl_connected(wp))
-        on_sep_line = 0;
-      else
-        on_status_line = 0;
-    }
-
-    /* Before jumping to another buffer, or moving the cursor for a left
-     * click, stop Visual mode. */
-    if (VIsual_active
-        && (wp->w_buffer != curwin->w_buffer
-            || (!on_status_line
-                && !on_sep_line
-                && (
-                  wp->w_p_rl ? col < W_WIDTH(wp) - wp->w_p_fdc :
-                                     col >= wp->w_p_fdc
-                                             + (cmdwin_type == 0 && wp ==
-                                                curwin ? 0 : 1)
-                  )
-                && (flags & MOUSE_MAY_STOP_VIS)))) {
-      end_visual_mode();
-      redraw_curbuf_later(INVERTED);            /* delete the inversion */
-    }
-    if (cmdwin_type != 0 && wp != curwin) {
-      /* A click outside the command-line window: Use modeless
-       * selection if possible.  Allow dragging the status lines. */
-      on_sep_line = 0;
-      row = 0;
-      col += wp->w_wincol;
-      wp = curwin;
-    }
-    /* Only change window focus when not clicking on or dragging the
-     * status line.  Do change focus when releasing the mouse button
-     * (MOUSE_FOCUS was set above if we dragged first). */
-    if (dragwin == NULL || (flags & MOUSE_RELEASED))
-      win_enter(wp, TRUE);                      /* can make wp invalid! */
-# ifdef CHECK_DOUBLE_CLICK
-    /* set topline, to be able to check for double click ourselves */
-    if (curwin != old_curwin)
-      set_mouse_topline(curwin);
-# endif
-    if (on_status_line) {                       /* In (or below) status line */
-      /* Don't use start_arrow() if we're in the same window */
-      if (curwin == old_curwin)
-        return IN_STATUS_LINE;
-      else
-        return IN_STATUS_LINE | CURSOR_MOVED;
-    }
-    if (on_sep_line) {                          /* In (or below) status line */
-      /* Don't use start_arrow() if we're in the same window */
-      if (curwin == old_curwin)
-        return IN_SEP_LINE;
-      else
-        return IN_SEP_LINE | CURSOR_MOVED;
-    }
-
-    curwin->w_cursor.lnum = curwin->w_topline;
-  } else if (on_status_line && which_button == MOUSE_LEFT)   {
-    if (dragwin != NULL) {
-      /* Drag the status line */
-      count = row - dragwin->w_winrow - dragwin->w_height + 1
-              - on_status_line;
-      win_drag_status_line(dragwin, count);
-      did_drag |= count;
-    }
-    return IN_STATUS_LINE;                      /* Cursor didn't move */
-  } else if (on_sep_line && which_button == MOUSE_LEFT)   {
-    if (dragwin != NULL) {
-      /* Drag the separator column */
-      count = col - dragwin->w_wincol - dragwin->w_width + 1
-              - on_sep_line;
-      win_drag_vsep_line(dragwin, count);
-      did_drag |= count;
-    }
-    return IN_SEP_LINE;                         /* Cursor didn't move */
-  } else { /* keep_window_focus must be TRUE */
-          /* before moving the cursor for a left click, stop Visual mode */
-    if (flags & MOUSE_MAY_STOP_VIS) {
-      end_visual_mode();
-      redraw_curbuf_later(INVERTED);            /* delete the inversion */
-    }
-
-
-    row -= W_WINROW(curwin);
-    col -= W_WINCOL(curwin);
-
-    /*
-     * When clicking beyond the end of the window, scroll the screen.
-     * Scroll by however many rows outside the window we are.
-     */
-    if (row < 0) {
-      count = 0;
-      for (first = TRUE; curwin->w_topline > 1; ) {
-        if (curwin->w_topfill < diff_check(curwin, curwin->w_topline))
-          ++count;
-        else
-          count += plines(curwin->w_topline - 1);
-        if (!first && count > -row)
-          break;
-        first = FALSE;
-        hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
-        if (curwin->w_topfill < diff_check(curwin, curwin->w_topline))
-          ++curwin->w_topfill;
-        else {
-          --curwin->w_topline;
-          curwin->w_topfill = 0;
-        }
-      }
-      check_topfill(curwin, FALSE);
-      curwin->w_valid &=
-        ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
-      redraw_later(VALID);
-      row = 0;
-    } else if (row >= curwin->w_height)   {
-      count = 0;
-      for (first = TRUE; curwin->w_topline < curbuf->b_ml.ml_line_count; ) {
-        if (curwin->w_topfill > 0)
-          ++count;
-        else
-          count += plines(curwin->w_topline);
-        if (!first && count > row - curwin->w_height + 1)
-          break;
-        first = FALSE;
-        if (hasFolding(curwin->w_topline, NULL, &curwin->w_topline)
-            && curwin->w_topline == curbuf->b_ml.ml_line_count)
-          break;
-        if (curwin->w_topfill > 0)
-          --curwin->w_topfill;
-        else {
-          ++curwin->w_topline;
-          curwin->w_topfill =
-            diff_check_fill(curwin, curwin->w_topline);
-        }
-      }
-      check_topfill(curwin, FALSE);
-      redraw_later(VALID);
-      curwin->w_valid &=
-        ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
-      row = curwin->w_height - 1;
-    } else if (row == 0)   {
-      /* When dragging the mouse, while the text has been scrolled up as
-       * far as it goes, moving the mouse in the top line should scroll
-       * the text down (done later when recomputing w_topline). */
-      if (mouse_dragging > 0
-          && curwin->w_cursor.lnum
-          == curwin->w_buffer->b_ml.ml_line_count
-          && curwin->w_cursor.lnum == curwin->w_topline)
-        curwin->w_valid &= ~(VALID_TOPLINE);
-    }
-  }
-
-  /* Check for position outside of the fold column. */
-  if (
-    curwin->w_p_rl ? col < W_WIDTH(curwin) - curwin->w_p_fdc :
-                           col >= curwin->w_p_fdc
-                                   + (cmdwin_type == 0 ? 0 : 1)
-    )
-    mouse_char = ' ';
-
-  /* compute the position in the buffer line from the posn on the screen */
-  if (mouse_comp_pos(curwin, &row, &col, &curwin->w_cursor.lnum))
-    mouse_past_bottom = TRUE;
-
-  /* Start Visual mode before coladvance(), for when 'sel' != "old" */
-  if ((flags & MOUSE_MAY_VIS) && !VIsual_active) {
-    check_visual_highlight();
-    VIsual = old_cursor;
-    VIsual_active = TRUE;
-    VIsual_reselect = TRUE;
-    /* if 'selectmode' contains "mouse", start Select mode */
-    may_start_select('o');
-    setmouse();
-    if (p_smd && msg_silent == 0)
-      redraw_cmdline = TRUE;            /* show visual mode later */
-  }
-
-  curwin->w_curswant = col;
-  curwin->w_set_curswant = FALSE;       /* May still have been TRUE */
-  if (coladvance(col) == FAIL) {        /* Mouse click beyond end of line */
-    if (inclusive != NULL)
-      *inclusive = TRUE;
-    mouse_past_eol = TRUE;
-  } else if (inclusive != NULL)
-    *inclusive = FALSE;
-
-  count = IN_BUFFER;
-  if (curwin != old_curwin || curwin->w_cursor.lnum != old_cursor.lnum
-      || curwin->w_cursor.col != old_cursor.col)
-    count |= CURSOR_MOVED;              /* Cursor has moved */
-
-  if (mouse_char == '+')
-    count |= MOUSE_FOLD_OPEN;
-  else if (mouse_char != ' ')
-    count |= MOUSE_FOLD_CLOSE;
-
-  return count;
-}
-
-/*
- * Compute the position in the buffer line from the posn on the screen in
- * window "win".
- * Returns TRUE if the position is below the last line.
- */
-int mouse_comp_pos(win_T *win, int *rowp, int *colp, linenr_T *lnump)
-{
-  int col = *colp;
-  int row = *rowp;
-  linenr_T lnum;
-  int retval = FALSE;
-  int off;
-  int count;
-
-  if (win->w_p_rl)
-    col = W_WIDTH(win) - 1 - col;
-
-  lnum = win->w_topline;
-
-  while (row > 0) {
-    /* Don't include filler lines in "count" */
-    if (win->w_p_diff
-        && !hasFoldingWin(win, lnum, NULL, NULL, TRUE, NULL)
-        ) {
-      if (lnum == win->w_topline)
-        row -= win->w_topfill;
-      else
-        row -= diff_check_fill(win, lnum);
-      count = plines_win_nofill(win, lnum, TRUE);
-    } else
-      count = plines_win(win, lnum, TRUE);
-    if (count > row)
-      break;            /* Position is in this buffer line. */
-    (void)hasFoldingWin(win, lnum, NULL, &lnum, TRUE, NULL);
-    if (lnum == win->w_buffer->b_ml.ml_line_count) {
-      retval = TRUE;
-      break;                    /* past end of file */
-    }
-    row -= count;
-    ++lnum;
-  }
-
-  if (!retval) {
-    /* Compute the column without wrapping. */
-    off = win_col_off(win) - win_col_off2(win);
-    if (col < off)
-      col = off;
-    col += row * (W_WIDTH(win) - off);
-    /* add skip column (for long wrapping line) */
-    col += win->w_skipcol;
-  }
-
-  if (!win->w_p_wrap)
-    col += win->w_leftcol;
-
-  /* skip line number and fold column in front of the line */
-  col -= win_col_off(win);
-  if (col < 0) {
-    col = 0;
-  }
-
-  *colp = col;
-  *rowp = row;
-  *lnump = lnum;
-  return retval;
-}
-
-/*
- * Find the window at screen position "*rowp" and "*colp".  The positions are
- * updated to become relative to the top-left of the window.
- */
-win_T *mouse_find_win(int *rowp, int *colp)
-{
-  frame_T     *fp;
-
-  fp = topframe;
-  *rowp -= firstwin->w_winrow;
-  for (;; ) {
-    if (fp->fr_layout == FR_LEAF)
-      break;
-    if (fp->fr_layout == FR_ROW) {
-      for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next) {
-        if (*colp < fp->fr_width)
-          break;
-        *colp -= fp->fr_width;
-      }
-    } else {  /* fr_layout == FR_COL */
-      for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next) {
-        if (*rowp < fp->fr_height)
-          break;
-        *rowp -= fp->fr_height;
-      }
-    }
-  }
-  return fp->fr_win;
-}
-
-#if defined(USE_IM_CONTROL) || defined(PROTO)
-/*
- * Save current Input Method status to specified place.
- */
-void im_save_status(long *psave)
-{
-  /* Don't save when 'imdisable' is set or "xic" is NULL, IM is always
-   * disabled then (but might start later).
-   * Also don't save when inside a mapping, vgetc_im_active has not been set
-   * then.
-   * And don't save when the keys were stuffed (e.g., for a "." command).
-   * And don't save when the GUI is running but our window doesn't have
-   * input focus (e.g., when a find dialog is open). */
-  if (!p_imdisable && KeyTyped && !KeyStuffed
-      ) {
-    /* Do save when IM is on, or IM is off and saved status is on. */
-    if (vgetc_im_active)
-      *psave = B_IMODE_IM;
-    else if (*psave == B_IMODE_IM)
-      *psave = B_IMODE_NONE;
-  }
-}
-#endif