/* vi:set ts=8 sts=4 sw=4: * * 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 #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) vim_free(tofree); } #endif } #if defined(UNIX) || defined(VMS) || defined(PROTO) || defined(WIN3264) /* * When executing an external program, there may be some typed characters that * are not consumed by it. Give them back to ui_inchar() and they are stored * here for the next call. */ static char_u *ta_str = NULL; static int ta_off; /* offset for next char to use when ta_str != NULL */ static int ta_len; /* length of ta_str when it's not NULL*/ void ui_inchar_undo(char_u *s, int len) { char_u *new; int newlen; newlen = len; if (ta_str != NULL) newlen += ta_len - ta_off; new = alloc(newlen); if (new != NULL) { if (ta_str != NULL) { memmove(new, ta_str + ta_off, (size_t)(ta_len - ta_off)); memmove(new + ta_len - ta_off, s, (size_t)len); vim_free(ta_str); } else memmove(new, s, (size_t)len); ta_str = new; ta_len = newlen; ta_off = 0; } } #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 /* set by the user */ ) { mch_set_shellsize(); } /* * Called when Rows and/or Columns changed. Adjust scroll region and mouse * region. */ void ui_new_shellsize(void) { if (full_screen && !exiting) { mch_new_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; } #ifdef PROTO int vim_free_in_input_buf(void) { return INBUFLEN - inbufcount; } #endif /* * 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)); if (gap != NULL) { /* 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; vim_free(gap->ga_data); } vim_free(gap); } } #if defined(FEAT_GUI) \ || defined(FEAT_MOUSE_GPM) || defined(FEAT_SYSMOUSE) \ || defined(FEAT_XCLIPBOARD) || defined(VMS) \ || 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 void push_raw_key(char_u *s, int len) { while (len--) inbuf[inbufcount++] = *s++; } #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(OS2) || defined(VMS) || 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(OS2) || defined(VMS) || 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) { vim_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 or OS2 or VMS*/ } #endif /* defined(UNIX) || defined(FEAT_GUI) || defined(OS2) || defined(VMS) */ /* * 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_CLIPBOARD) || 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. */ #if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) \ || defined(FEAT_GUI_GTK) || defined(PROTO) /* * Get the contents of the X CUT_BUFFER0 and put it in "cbd". */ void yank_cut_buffer0(Display *dpy, VimClipboard *cbd) { int nbytes = 0; char_u *buffer = (char_u *)XFetchBuffer(dpy, &nbytes, 0); if (nbytes > 0) { int done = FALSE; /* CUT_BUFFER0 is supposed to be always latin1. Convert to 'enc' when * using a multi-byte encoding. Conversion between two 8-bit * character sets usually fails and the text might actually be in * 'enc' anyway. */ if (has_mbyte) { char_u *conv_buf; vimconv_T vc; vc.vc_type = CONV_NONE; if (convert_setup(&vc, (char_u *)"latin1", p_enc) == OK) { conv_buf = string_convert(&vc, buffer, &nbytes); if (conv_buf != NULL) { clip_yank_selection(MCHAR, conv_buf, (long)nbytes, cbd); vim_free(conv_buf); done = TRUE; } convert_setup(&vc, NULL, NULL); } } if (!done) /* use the text without conversion */ clip_yank_selection(MCHAR, buffer, (long)nbytes, cbd); XFree((void *)buffer); if (p_verbose > 0) { verbose_enter(); verb_msg((char_u *)_("Used CUT_BUFFER0 instead of empty selection")); verbose_leave(); } } } #endif /* * 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(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MAC) \ || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \ || defined(FEAT_GUI_PHOTON) || defined(PROTO) /* * Translate window coordinates to buffer position without any side effects */ int get_fpos_of_mouse(pos_T *mpos) { win_T *wp; int row = mouse_row; int col = mouse_col; 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); /* * winpos and height may change in win_enter()! */ if (row >= wp->w_height) /* In (or below) status line */ return IN_STATUS_LINE; if (col >= wp->w_width) /* In vertical separator line */ return IN_SEP_LINE; if (wp != curwin) return IN_UNKNOWN; /* compute the position in the buffer line from the posn on the screen */ if (mouse_comp_pos(curwin, &row, &col, &mpos->lnum)) return IN_STATUS_LINE; /* past bottom */ mpos->col = vcol2col(wp, mpos->lnum, col); if (mpos->col > 0) --mpos->col; mpos->coladd = 0; return IN_BUFFER; } /* * Convert a virtual (screen) column to a character column. * The first column is one. */ int vcol2col(win_T *wp, linenr_T lnum, int vcol) { /* try to advance to the specified column */ int count = 0; char_u *ptr; char_u *start; start = ptr = ml_get_buf(wp->w_buffer, lnum, FALSE); while (count < vcol && *ptr != NUL) { count += win_lbr_chartabsize(wp, ptr, count, NULL); mb_ptr_adv(ptr); } return (int)(ptr - start); } #endif #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