Merged from the latest developing branch.
[MacVim.git] / src / ui.c
blob8bafa15545833ac17cd0de4db3df9901f2a184c2
1 /* vi:set ts=8 sts=4 sw=4:
3 * VIM - Vi IMproved by Bram Moolenaar
5 * Do ":help uganda" in Vim to read copying and usage conditions.
6 * Do ":help credits" in Vim to see a list of people who contributed.
7 * See README.txt for an overview of the Vim source code.
8 */
11 * ui.c: functions that handle the user interface.
12 * 1. Keyboard input stuff, and a bit of windowing stuff. These are called
13 * before the machine specific stuff (mch_*) so that we can call the GUI
14 * stuff instead if the GUI is running.
15 * 2. Clipboard stuff.
16 * 3. Input buffer stuff.
19 #include "vim.h"
21 void
22 ui_write(s, len)
23 char_u *s;
24 int len;
26 #ifdef FEAT_GUI
27 if (gui.in_use && !gui.dying && !gui.starting)
29 gui_write(s, len);
30 if (p_wd)
31 gui_wait_for_chars(p_wd);
32 return;
34 #endif
35 #ifndef NO_CONSOLE
36 /* Don't output anything in silent mode ("ex -s") unless 'verbose' set */
37 if (!(silent_mode && p_verbose == 0))
39 #ifdef FEAT_MBYTE
40 char_u *tofree = NULL;
42 if (output_conv.vc_type != CONV_NONE)
44 /* Convert characters from 'encoding' to 'termencoding'. */
45 tofree = string_convert(&output_conv, s, &len);
46 if (tofree != NULL)
47 s = tofree;
49 #endif
51 mch_write(s, len);
53 #ifdef FEAT_MBYTE
54 if (output_conv.vc_type != CONV_NONE)
55 vim_free(tofree);
56 #endif
58 #endif
61 #if defined(UNIX) || defined(VMS) || defined(PROTO)
63 * When executing an external program, there may be some typed characters that
64 * are not consumed by it. Give them back to ui_inchar() and they are stored
65 * here for the next call.
67 static char_u *ta_str = NULL;
68 static int ta_off; /* offset for next char to use when ta_str != NULL */
69 static int ta_len; /* length of ta_str when it's not NULL*/
71 void
72 ui_inchar_undo(s, len)
73 char_u *s;
74 int len;
76 char_u *new;
77 int newlen;
79 newlen = len;
80 if (ta_str != NULL)
81 newlen += ta_len - ta_off;
82 new = alloc(newlen);
83 if (new != NULL)
85 if (ta_str != NULL)
87 mch_memmove(new, ta_str + ta_off, (size_t)(ta_len - ta_off));
88 mch_memmove(new + ta_len - ta_off, s, (size_t)len);
89 vim_free(ta_str);
91 else
92 mch_memmove(new, s, (size_t)len);
93 ta_str = new;
94 ta_len = newlen;
95 ta_off = 0;
98 #endif
101 * ui_inchar(): low level input funcion.
102 * Get characters from the keyboard.
103 * Return the number of characters that are available.
104 * If "wtime" == 0 do not wait for characters.
105 * If "wtime" == -1 wait forever for characters.
106 * If "wtime" > 0 wait "wtime" milliseconds for a character.
108 * "tb_change_cnt" is the value of typebuf.tb_change_cnt if "buf" points into
109 * it. When typebuf.tb_change_cnt changes (e.g., when a message is received
110 * from a remote client) "buf" can no longer be used. "tb_change_cnt" is NULL
111 * otherwise.
114 ui_inchar(buf, maxlen, wtime, tb_change_cnt)
115 char_u *buf;
116 int maxlen;
117 long wtime; /* don't use "time", MIPS cannot handle it */
118 int tb_change_cnt;
120 int retval = 0;
122 #if defined(FEAT_GUI) && (defined(UNIX) || defined(VMS))
124 * Use the typeahead if there is any.
126 if (ta_str != NULL)
128 if (maxlen >= ta_len - ta_off)
130 mch_memmove(buf, ta_str + ta_off, (size_t)ta_len);
131 vim_free(ta_str);
132 ta_str = NULL;
133 return ta_len;
135 mch_memmove(buf, ta_str + ta_off, (size_t)maxlen);
136 ta_off += maxlen;
137 return maxlen;
139 #endif
141 #ifdef FEAT_PROFILE
142 if (do_profiling == PROF_YES && wtime != 0)
143 prof_inchar_enter();
144 #endif
146 #ifdef NO_CONSOLE_INPUT
147 /* Don't wait for character input when the window hasn't been opened yet.
148 * Do try reading, this works when redirecting stdin from a file.
149 * Must return something, otherwise we'll loop forever. If we run into
150 * this very often we probably got stuck, exit Vim. */
151 if (no_console_input())
153 static int count = 0;
155 # ifndef NO_CONSOLE
156 retval = mch_inchar(buf, maxlen, (wtime >= 0 && wtime < 10)
157 ? 10L : wtime, tb_change_cnt);
158 if (retval > 0 || typebuf_changed(tb_change_cnt) || wtime >= 0)
159 goto theend;
160 # endif
161 if (wtime == -1 && ++count == 1000)
162 read_error_exit();
163 buf[0] = CAR;
164 retval = 1;
165 goto theend;
167 #endif
169 /* If we are going to wait for some time or block... */
170 if (wtime == -1 || wtime > 100L)
172 /* ... allow signals to kill us. */
173 (void)vim_handle_signal(SIGNAL_UNBLOCK);
175 /* ... there is no need for CTRL-C to interrupt something, don't let
176 * it set got_int when it was mapped. */
177 if (mapped_ctrl_c)
178 ctrl_c_interrupts = FALSE;
181 #ifdef FEAT_GUI
182 if (gui.in_use)
184 if (gui_wait_for_chars(wtime) && !typebuf_changed(tb_change_cnt))
185 retval = read_from_input_buf(buf, (long)maxlen);
187 #endif
188 #ifndef NO_CONSOLE
189 # ifdef FEAT_GUI
190 else
191 # endif
193 retval = mch_inchar(buf, maxlen, wtime, tb_change_cnt);
195 #endif
197 if (wtime == -1 || wtime > 100L)
198 /* block SIGHUP et al. */
199 (void)vim_handle_signal(SIGNAL_BLOCK);
201 ctrl_c_interrupts = TRUE;
203 #ifdef NO_CONSOLE_INPUT
204 theend:
205 #endif
206 #ifdef FEAT_PROFILE
207 if (do_profiling == PROF_YES && wtime != 0)
208 prof_inchar_exit();
209 #endif
210 return retval;
214 * return non-zero if a character is available
217 ui_char_avail()
219 #ifdef FEAT_GUI
220 if (gui.in_use)
222 gui_mch_update();
223 return input_available();
225 #endif
226 #ifndef NO_CONSOLE
227 # ifdef NO_CONSOLE_INPUT
228 if (no_console_input())
229 return 0;
230 # endif
231 return mch_char_avail();
232 #else
233 return 0;
234 #endif
238 * Delay for the given number of milliseconds. If ignoreinput is FALSE then we
239 * cancel the delay if a key is hit.
241 void
242 ui_delay(msec, ignoreinput)
243 long msec;
244 int ignoreinput;
246 #ifdef FEAT_GUI
247 if (gui.in_use && !ignoreinput)
248 gui_wait_for_chars(msec);
249 else
250 #endif
251 mch_delay(msec, ignoreinput);
255 * If the machine has job control, use it to suspend the program,
256 * otherwise fake it by starting a new shell.
257 * When running the GUI iconify the window.
259 void
260 ui_suspend()
262 #ifdef FEAT_GUI
263 if (gui.in_use)
265 gui_mch_iconify();
266 return;
268 #endif
269 mch_suspend();
272 #if !defined(UNIX) || !defined(SIGTSTP) || defined(PROTO) || defined(__BEOS__)
274 * When the OS can't really suspend, call this function to start a shell.
275 * This is never called in the GUI.
277 void
278 suspend_shell()
280 if (*p_sh == NUL)
281 EMSG(_(e_shellempty));
282 else
284 MSG_PUTS(_("new shell started\n"));
285 do_shell(NULL, 0);
288 #endif
291 * Try to get the current Vim shell size. Put the result in Rows and Columns.
292 * Use the new sizes as defaults for 'columns' and 'lines'.
293 * Return OK when size could be determined, FAIL otherwise.
296 ui_get_shellsize()
298 int retval;
300 #ifdef FEAT_GUI
301 if (gui.in_use)
302 retval = gui_get_shellsize();
303 else
304 #endif
305 retval = mch_get_shellsize();
307 check_shellsize();
309 /* adjust the default for 'lines' and 'columns' */
310 if (retval == OK)
312 set_number_default("lines", Rows);
313 set_number_default("columns", Columns);
315 return retval;
319 * Set the size of the Vim shell according to Rows and Columns, if possible.
320 * The gui_set_shellsize() or mch_set_shellsize() function will try to set the
321 * new size. If this is not possible, it will adjust Rows and Columns.
323 void
324 ui_set_shellsize(mustset)
325 int mustset UNUSED; /* set by the user */
327 #ifdef FEAT_GUI
328 if (gui.in_use)
329 gui_set_shellsize(mustset,
330 # ifdef WIN3264
331 TRUE
332 # else
333 FALSE
334 # endif
335 , RESIZE_BOTH);
336 else
337 #endif
338 mch_set_shellsize();
342 * Called when Rows and/or Columns changed. Adjust scroll region and mouse
343 * region.
345 void
346 ui_new_shellsize()
348 if (full_screen && !exiting)
350 #ifdef FEAT_GUI
351 if (gui.in_use)
352 gui_new_shellsize();
353 else
354 #endif
355 mch_new_shellsize();
359 void
360 ui_breakcheck()
362 #ifdef FEAT_GUI
363 if (gui.in_use)
364 gui_mch_update();
365 else
366 #endif
367 mch_breakcheck();
370 /*****************************************************************************
371 * Functions for copying and pasting text between applications.
372 * This is always included in a GUI version, but may also be included when the
373 * clipboard and mouse is available to a terminal version such as xterm.
374 * Note: there are some more functions in ops.c that handle selection stuff.
376 * Also note that the majority of functions here deal with the X 'primary'
377 * (visible - for Visual mode use) selection, and only that. There are no
378 * versions of these for the 'clipboard' selection, as Visual mode has no use
379 * for them.
382 #if defined(FEAT_CLIPBOARD) || defined(PROTO)
385 * Selection stuff using Visual mode, for cutting and pasting text to other
386 * windows.
390 * Call this to initialise the clipboard. Pass it FALSE if the clipboard code
391 * is included, but the clipboard can not be used, or TRUE if the clipboard can
392 * be used. Eg unix may call this with FALSE, then call it again with TRUE if
393 * the GUI starts.
395 void
396 clip_init(can_use)
397 int can_use;
399 VimClipboard *cb;
401 cb = &clip_star;
402 for (;;)
404 cb->available = can_use;
405 cb->owned = FALSE;
406 cb->start.lnum = 0;
407 cb->start.col = 0;
408 cb->end.lnum = 0;
409 cb->end.col = 0;
410 cb->state = SELECT_CLEARED;
412 if (cb == &clip_plus)
413 break;
414 cb = &clip_plus;
419 * Check whether the VIsual area has changed, and if so try to become the owner
420 * of the selection, and free any old converted selection we may still have
421 * lying around. If the VIsual mode has ended, make a copy of what was
422 * selected so we can still give it to others. Will probably have to make sure
423 * this is called whenever VIsual mode is ended.
425 void
426 clip_update_selection()
428 pos_T start, end;
430 /* If visual mode is only due to a redo command ("."), then ignore it */
431 if (!redo_VIsual_busy && VIsual_active && (State & NORMAL))
433 if (lt(VIsual, curwin->w_cursor))
435 start = VIsual;
436 end = curwin->w_cursor;
437 #ifdef FEAT_MBYTE
438 if (has_mbyte)
439 end.col += (*mb_ptr2len)(ml_get_cursor()) - 1;
440 #endif
442 else
444 start = curwin->w_cursor;
445 end = VIsual;
447 if (!equalpos(clip_star.start, start)
448 || !equalpos(clip_star.end, end)
449 || clip_star.vmode != VIsual_mode)
451 clip_clear_selection();
452 clip_star.start = start;
453 clip_star.end = end;
454 clip_star.vmode = VIsual_mode;
455 clip_free_selection(&clip_star);
456 clip_own_selection(&clip_star);
457 clip_gen_set_selection(&clip_star);
462 void
463 clip_own_selection(cbd)
464 VimClipboard *cbd;
467 * Also want to check somehow that we are reading from the keyboard rather
468 * than a mapping etc.
470 if (!cbd->owned && cbd->available)
472 cbd->owned = (clip_gen_own_selection(cbd) == OK);
473 #ifdef FEAT_X11
474 if (cbd == &clip_star)
476 /* May have to show a different kind of highlighting for the
477 * selected area. There is no specific redraw command for this,
478 * just redraw all windows on the current buffer. */
479 if (cbd->owned
480 && (get_real_state() == VISUAL
481 || get_real_state() == SELECTMODE)
482 && clip_isautosel()
483 && hl_attr(HLF_V) != hl_attr(HLF_VNC))
484 redraw_curbuf_later(INVERTED_ALL);
486 #endif
490 void
491 clip_lose_selection(cbd)
492 VimClipboard *cbd;
494 #ifdef FEAT_X11
495 int was_owned = cbd->owned;
496 #endif
497 int visual_selection = (cbd == &clip_star);
499 clip_free_selection(cbd);
500 cbd->owned = FALSE;
501 if (visual_selection)
502 clip_clear_selection();
503 clip_gen_lose_selection(cbd);
504 #ifdef FEAT_X11
505 if (visual_selection)
507 /* May have to show a different kind of highlighting for the selected
508 * area. There is no specific redraw command for this, just redraw all
509 * windows on the current buffer. */
510 if (was_owned
511 && (get_real_state() == VISUAL
512 || get_real_state() == SELECTMODE)
513 && clip_isautosel()
514 && hl_attr(HLF_V) != hl_attr(HLF_VNC))
516 update_curbuf(INVERTED_ALL);
517 setcursor();
518 cursor_on();
519 out_flush();
520 # ifdef FEAT_GUI
521 if (gui.in_use)
522 gui_update_cursor(TRUE, FALSE);
523 # endif
526 #endif
529 void
530 clip_copy_selection()
532 if (VIsual_active && (State & NORMAL) && clip_star.available)
534 if (clip_isautosel())
535 clip_update_selection();
536 clip_free_selection(&clip_star);
537 clip_own_selection(&clip_star);
538 if (clip_star.owned)
539 clip_get_selection(&clip_star);
540 clip_gen_set_selection(&clip_star);
545 * Called when Visual mode is ended: update the selection.
547 void
548 clip_auto_select()
550 if (clip_isautosel())
551 clip_copy_selection();
555 * Return TRUE if automatic selection of Visual area is desired.
558 clip_isautosel()
560 return (
561 #ifdef FEAT_GUI
562 gui.in_use ? (vim_strchr(p_go, GO_ASEL) != NULL) :
563 #endif
564 clip_autoselect);
569 * Stuff for general mouse selection, without using Visual mode.
572 static int clip_compare_pos __ARGS((int row1, int col1, int row2, int col2));
573 static void clip_invert_area __ARGS((int, int, int, int, int how));
574 static void clip_invert_rectangle __ARGS((int row, int col, int height, int width, int invert));
575 static void clip_get_word_boundaries __ARGS((VimClipboard *, int, int));
576 static int clip_get_line_end __ARGS((int));
577 static void clip_update_modeless_selection __ARGS((VimClipboard *, int, int,
578 int, int));
580 /* flags for clip_invert_area() */
581 #define CLIP_CLEAR 1
582 #define CLIP_SET 2
583 #define CLIP_TOGGLE 3
586 * Start, continue or end a modeless selection. Used when editing the
587 * command-line and in the cmdline window.
589 void
590 clip_modeless(button, is_click, is_drag)
591 int button;
592 int is_click;
593 int is_drag;
595 int repeat;
597 repeat = ((clip_star.mode == SELECT_MODE_CHAR
598 || clip_star.mode == SELECT_MODE_LINE)
599 && (mod_mask & MOD_MASK_2CLICK))
600 || (clip_star.mode == SELECT_MODE_WORD
601 && (mod_mask & MOD_MASK_3CLICK));
602 if (is_click && button == MOUSE_RIGHT)
604 /* Right mouse button: If there was no selection, start one.
605 * Otherwise extend the existing selection. */
606 if (clip_star.state == SELECT_CLEARED)
607 clip_start_selection(mouse_col, mouse_row, FALSE);
608 clip_process_selection(button, mouse_col, mouse_row, repeat);
610 else if (is_click)
611 clip_start_selection(mouse_col, mouse_row, repeat);
612 else if (is_drag)
614 /* Don't try extending a selection if there isn't one. Happens when
615 * button-down is in the cmdline and them moving mouse upwards. */
616 if (clip_star.state != SELECT_CLEARED)
617 clip_process_selection(button, mouse_col, mouse_row, repeat);
619 else /* release */
620 clip_process_selection(MOUSE_RELEASE, mouse_col, mouse_row, FALSE);
624 * Compare two screen positions ala strcmp()
626 static int
627 clip_compare_pos(row1, col1, row2, col2)
628 int row1;
629 int col1;
630 int row2;
631 int col2;
633 if (row1 > row2) return(1);
634 if (row1 < row2) return(-1);
635 if (col1 > col2) return(1);
636 if (col1 < col2) return(-1);
637 return(0);
641 * Start the selection
643 void
644 clip_start_selection(col, row, repeated_click)
645 int col;
646 int row;
647 int repeated_click;
649 VimClipboard *cb = &clip_star;
651 if (cb->state == SELECT_DONE)
652 clip_clear_selection();
654 row = check_row(row);
655 col = check_col(col);
656 #ifdef FEAT_MBYTE
657 col = mb_fix_col(col, row);
658 #endif
660 cb->start.lnum = row;
661 cb->start.col = col;
662 cb->end = cb->start;
663 cb->origin_row = (short_u)cb->start.lnum;
664 cb->state = SELECT_IN_PROGRESS;
666 if (repeated_click)
668 if (++cb->mode > SELECT_MODE_LINE)
669 cb->mode = SELECT_MODE_CHAR;
671 else
672 cb->mode = SELECT_MODE_CHAR;
674 #ifdef FEAT_GUI
675 /* clear the cursor until the selection is made */
676 if (gui.in_use)
677 gui_undraw_cursor();
678 #endif
680 switch (cb->mode)
682 case SELECT_MODE_CHAR:
683 cb->origin_start_col = cb->start.col;
684 cb->word_end_col = clip_get_line_end((int)cb->start.lnum);
685 break;
687 case SELECT_MODE_WORD:
688 clip_get_word_boundaries(cb, (int)cb->start.lnum, cb->start.col);
689 cb->origin_start_col = cb->word_start_col;
690 cb->origin_end_col = cb->word_end_col;
692 clip_invert_area((int)cb->start.lnum, cb->word_start_col,
693 (int)cb->end.lnum, cb->word_end_col, CLIP_SET);
694 cb->start.col = cb->word_start_col;
695 cb->end.col = cb->word_end_col;
696 break;
698 case SELECT_MODE_LINE:
699 clip_invert_area((int)cb->start.lnum, 0, (int)cb->start.lnum,
700 (int)Columns, CLIP_SET);
701 cb->start.col = 0;
702 cb->end.col = Columns;
703 break;
706 cb->prev = cb->start;
708 #ifdef DEBUG_SELECTION
709 printf("Selection started at (%u,%u)\n", cb->start.lnum, cb->start.col);
710 #endif
714 * Continue processing the selection
716 void
717 clip_process_selection(button, col, row, repeated_click)
718 int button;
719 int col;
720 int row;
721 int_u repeated_click;
723 VimClipboard *cb = &clip_star;
724 int diff;
725 int slen = 1; /* cursor shape width */
727 if (button == MOUSE_RELEASE)
729 /* Check to make sure we have something selected */
730 if (cb->start.lnum == cb->end.lnum && cb->start.col == cb->end.col)
732 #ifdef FEAT_GUI
733 if (gui.in_use)
734 gui_update_cursor(FALSE, FALSE);
735 #endif
736 cb->state = SELECT_CLEARED;
737 return;
740 #ifdef DEBUG_SELECTION
741 printf("Selection ended: (%u,%u) to (%u,%u)\n", cb->start.lnum,
742 cb->start.col, cb->end.lnum, cb->end.col);
743 #endif
744 if (clip_isautosel()
745 || (
746 #ifdef FEAT_GUI
747 gui.in_use ? (vim_strchr(p_go, GO_ASELML) != NULL) :
748 #endif
749 clip_autoselectml))
750 clip_copy_modeless_selection(FALSE);
751 #ifdef FEAT_GUI
752 if (gui.in_use)
753 gui_update_cursor(FALSE, FALSE);
754 #endif
756 cb->state = SELECT_DONE;
757 return;
760 row = check_row(row);
761 col = check_col(col);
762 #ifdef FEAT_MBYTE
763 col = mb_fix_col(col, row);
764 #endif
766 if (col == (int)cb->prev.col && row == cb->prev.lnum && !repeated_click)
767 return;
770 * When extending the selection with the right mouse button, swap the
771 * start and end if the position is before half the selection
773 if (cb->state == SELECT_DONE && button == MOUSE_RIGHT)
776 * If the click is before the start, or the click is inside the
777 * selection and the start is the closest side, set the origin to the
778 * end of the selection.
780 if (clip_compare_pos(row, col, (int)cb->start.lnum, cb->start.col) < 0
781 || (clip_compare_pos(row, col,
782 (int)cb->end.lnum, cb->end.col) < 0
783 && (((cb->start.lnum == cb->end.lnum
784 && cb->end.col - col > col - cb->start.col))
785 || ((diff = (cb->end.lnum - row) -
786 (row - cb->start.lnum)) > 0
787 || (diff == 0 && col < (int)(cb->start.col +
788 cb->end.col) / 2)))))
790 cb->origin_row = (short_u)cb->end.lnum;
791 cb->origin_start_col = cb->end.col - 1;
792 cb->origin_end_col = cb->end.col;
794 else
796 cb->origin_row = (short_u)cb->start.lnum;
797 cb->origin_start_col = cb->start.col;
798 cb->origin_end_col = cb->start.col;
800 if (cb->mode == SELECT_MODE_WORD && !repeated_click)
801 cb->mode = SELECT_MODE_CHAR;
804 /* set state, for when using the right mouse button */
805 cb->state = SELECT_IN_PROGRESS;
807 #ifdef DEBUG_SELECTION
808 printf("Selection extending to (%d,%d)\n", row, col);
809 #endif
811 if (repeated_click && ++cb->mode > SELECT_MODE_LINE)
812 cb->mode = SELECT_MODE_CHAR;
814 switch (cb->mode)
816 case SELECT_MODE_CHAR:
817 /* If we're on a different line, find where the line ends */
818 if (row != cb->prev.lnum)
819 cb->word_end_col = clip_get_line_end(row);
821 /* See if we are before or after the origin of the selection */
822 if (clip_compare_pos(row, col, cb->origin_row,
823 cb->origin_start_col) >= 0)
825 if (col >= (int)cb->word_end_col)
826 clip_update_modeless_selection(cb, cb->origin_row,
827 cb->origin_start_col, row, (int)Columns);
828 else
830 #ifdef FEAT_MBYTE
831 if (has_mbyte && mb_lefthalve(row, col))
832 slen = 2;
833 #endif
834 clip_update_modeless_selection(cb, cb->origin_row,
835 cb->origin_start_col, row, col + slen);
838 else
840 #ifdef FEAT_MBYTE
841 if (has_mbyte
842 && mb_lefthalve(cb->origin_row, cb->origin_start_col))
843 slen = 2;
844 #endif
845 if (col >= (int)cb->word_end_col)
846 clip_update_modeless_selection(cb, row, cb->word_end_col,
847 cb->origin_row, cb->origin_start_col + slen);
848 else
849 clip_update_modeless_selection(cb, row, col,
850 cb->origin_row, cb->origin_start_col + slen);
852 break;
854 case SELECT_MODE_WORD:
855 /* If we are still within the same word, do nothing */
856 if (row == cb->prev.lnum && col >= (int)cb->word_start_col
857 && col < (int)cb->word_end_col && !repeated_click)
858 return;
860 /* Get new word boundaries */
861 clip_get_word_boundaries(cb, row, col);
863 /* Handle being after the origin point of selection */
864 if (clip_compare_pos(row, col, cb->origin_row,
865 cb->origin_start_col) >= 0)
866 clip_update_modeless_selection(cb, cb->origin_row,
867 cb->origin_start_col, row, cb->word_end_col);
868 else
869 clip_update_modeless_selection(cb, row, cb->word_start_col,
870 cb->origin_row, cb->origin_end_col);
871 break;
873 case SELECT_MODE_LINE:
874 if (row == cb->prev.lnum && !repeated_click)
875 return;
877 if (clip_compare_pos(row, col, cb->origin_row,
878 cb->origin_start_col) >= 0)
879 clip_update_modeless_selection(cb, cb->origin_row, 0, row,
880 (int)Columns);
881 else
882 clip_update_modeless_selection(cb, row, 0, cb->origin_row,
883 (int)Columns);
884 break;
887 cb->prev.lnum = row;
888 cb->prev.col = col;
890 #ifdef DEBUG_SELECTION
891 printf("Selection is: (%u,%u) to (%u,%u)\n", cb->start.lnum,
892 cb->start.col, cb->end.lnum, cb->end.col);
893 #endif
896 #if 0 /* not used */
898 * Called after an Expose event to redraw the selection
900 void
901 clip_redraw_selection(x, y, w, h)
902 int x;
903 int y;
904 int w;
905 int h;
907 VimClipboard *cb = &clip_star;
908 int row1, col1, row2, col2;
909 int row;
910 int start;
911 int end;
913 if (cb->state == SELECT_CLEARED)
914 return;
916 row1 = check_row(Y_2_ROW(y));
917 col1 = check_col(X_2_COL(x));
918 row2 = check_row(Y_2_ROW(y + h - 1));
919 col2 = check_col(X_2_COL(x + w - 1));
921 /* Limit the rows that need to be re-drawn */
922 if (cb->start.lnum > row1)
923 row1 = cb->start.lnum;
924 if (cb->end.lnum < row2)
925 row2 = cb->end.lnum;
927 /* Look at each row that might need to be re-drawn */
928 for (row = row1; row <= row2; row++)
930 /* For the first selection row, use the starting selection column */
931 if (row == cb->start.lnum)
932 start = cb->start.col;
933 else
934 start = 0;
936 /* For the last selection row, use the ending selection column */
937 if (row == cb->end.lnum)
938 end = cb->end.col;
939 else
940 end = Columns;
942 if (col1 > start)
943 start = col1;
945 if (col2 < end)
946 end = col2 + 1;
948 if (end > start)
949 gui_mch_invert_rectangle(row, start, 1, end - start);
952 #endif
954 # if defined(FEAT_GUI) || defined(PROTO)
956 * Redraw part of the selection if character at "row,col" is inside of it.
957 * Only used for the GUI.
959 void
960 clip_may_redraw_selection(row, col, len)
961 int row, col;
962 int len;
964 int start = col;
965 int end = col + len;
967 if (clip_star.state != SELECT_CLEARED
968 && row >= clip_star.start.lnum
969 && row <= clip_star.end.lnum)
971 if (row == clip_star.start.lnum && start < (int)clip_star.start.col)
972 start = clip_star.start.col;
973 if (row == clip_star.end.lnum && end > (int)clip_star.end.col)
974 end = clip_star.end.col;
975 if (end > start)
976 clip_invert_area(row, start, row, end, 0);
979 # endif
982 * Called from outside to clear selected region from the display
984 void
985 clip_clear_selection()
987 VimClipboard *cb = &clip_star;
989 if (cb->state == SELECT_CLEARED)
990 return;
992 clip_invert_area((int)cb->start.lnum, cb->start.col, (int)cb->end.lnum,
993 cb->end.col, CLIP_CLEAR);
994 cb->state = SELECT_CLEARED;
998 * Clear the selection if any lines from "row1" to "row2" are inside of it.
1000 void
1001 clip_may_clear_selection(row1, row2)
1002 int row1, row2;
1004 if (clip_star.state == SELECT_DONE
1005 && row2 >= clip_star.start.lnum
1006 && row1 <= clip_star.end.lnum)
1007 clip_clear_selection();
1011 * Called before the screen is scrolled up or down. Adjusts the line numbers
1012 * of the selection. Call with big number when clearing the screen.
1014 void
1015 clip_scroll_selection(rows)
1016 int rows; /* negative for scroll down */
1018 int lnum;
1020 if (clip_star.state == SELECT_CLEARED)
1021 return;
1023 lnum = clip_star.start.lnum - rows;
1024 if (lnum <= 0)
1025 clip_star.start.lnum = 0;
1026 else if (lnum >= screen_Rows) /* scrolled off of the screen */
1027 clip_star.state = SELECT_CLEARED;
1028 else
1029 clip_star.start.lnum = lnum;
1031 lnum = clip_star.end.lnum - rows;
1032 if (lnum < 0) /* scrolled off of the screen */
1033 clip_star.state = SELECT_CLEARED;
1034 else if (lnum >= screen_Rows)
1035 clip_star.end.lnum = screen_Rows - 1;
1036 else
1037 clip_star.end.lnum = lnum;
1041 * Invert a region of the display between a starting and ending row and column
1042 * Values for "how":
1043 * CLIP_CLEAR: undo inversion
1044 * CLIP_SET: set inversion
1045 * CLIP_TOGGLE: set inversion if pos1 < pos2, undo inversion otherwise.
1046 * 0: invert (GUI only).
1048 static void
1049 clip_invert_area(row1, col1, row2, col2, how)
1050 int row1;
1051 int col1;
1052 int row2;
1053 int col2;
1054 int how;
1056 int invert = FALSE;
1058 if (how == CLIP_SET)
1059 invert = TRUE;
1061 /* Swap the from and to positions so the from is always before */
1062 if (clip_compare_pos(row1, col1, row2, col2) > 0)
1064 int tmp_row, tmp_col;
1066 tmp_row = row1;
1067 tmp_col = col1;
1068 row1 = row2;
1069 col1 = col2;
1070 row2 = tmp_row;
1071 col2 = tmp_col;
1073 else if (how == CLIP_TOGGLE)
1074 invert = TRUE;
1076 /* If all on the same line, do it the easy way */
1077 if (row1 == row2)
1079 clip_invert_rectangle(row1, col1, 1, col2 - col1, invert);
1081 else
1083 /* Handle a piece of the first line */
1084 if (col1 > 0)
1086 clip_invert_rectangle(row1, col1, 1, (int)Columns - col1, invert);
1087 row1++;
1090 /* Handle a piece of the last line */
1091 if (col2 < Columns - 1)
1093 clip_invert_rectangle(row2, 0, 1, col2, invert);
1094 row2--;
1097 /* Handle the rectangle thats left */
1098 if (row2 >= row1)
1099 clip_invert_rectangle(row1, 0, row2 - row1 + 1, (int)Columns,
1100 invert);
1105 * Invert or un-invert a rectangle of the screen.
1106 * "invert" is true if the result is inverted.
1108 static void
1109 clip_invert_rectangle(row, col, height, width, invert)
1110 int row;
1111 int col;
1112 int height;
1113 int width;
1114 int invert;
1116 #ifdef FEAT_GUI
1117 if (gui.in_use)
1118 gui_mch_invert_rectangle(row, col, height, width);
1119 else
1120 #endif
1121 screen_draw_rectangle(row, col, height, width, invert);
1125 * Copy the currently selected area into the '*' register so it will be
1126 * available for pasting.
1127 * When "both" is TRUE also copy to the '+' register.
1129 void
1130 clip_copy_modeless_selection(both)
1131 int both UNUSED;
1133 char_u *buffer;
1134 char_u *bufp;
1135 int row;
1136 int start_col;
1137 int end_col;
1138 int line_end_col;
1139 int add_newline_flag = FALSE;
1140 int len;
1141 #ifdef FEAT_MBYTE
1142 char_u *p;
1143 #endif
1144 int row1 = clip_star.start.lnum;
1145 int col1 = clip_star.start.col;
1146 int row2 = clip_star.end.lnum;
1147 int col2 = clip_star.end.col;
1149 /* Can't use ScreenLines unless initialized */
1150 if (ScreenLines == NULL)
1151 return;
1154 * Make sure row1 <= row2, and if row1 == row2 that col1 <= col2.
1156 if (row1 > row2)
1158 row = row1; row1 = row2; row2 = row;
1159 row = col1; col1 = col2; col2 = row;
1161 else if (row1 == row2 && col1 > col2)
1163 row = col1; col1 = col2; col2 = row;
1165 #ifdef FEAT_MBYTE
1166 /* correct starting point for being on right halve of double-wide char */
1167 p = ScreenLines + LineOffset[row1];
1168 if (enc_dbcs != 0)
1169 col1 -= (*mb_head_off)(p, p + col1);
1170 else if (enc_utf8 && p[col1] == 0)
1171 --col1;
1172 #endif
1174 /* Create a temporary buffer for storing the text */
1175 len = (row2 - row1 + 1) * Columns + 1;
1176 #ifdef FEAT_MBYTE
1177 if (enc_dbcs != 0)
1178 len *= 2; /* max. 2 bytes per display cell */
1179 else if (enc_utf8)
1180 len *= MB_MAXBYTES;
1181 #endif
1182 buffer = lalloc((long_u)len, TRUE);
1183 if (buffer == NULL) /* out of memory */
1184 return;
1186 /* Process each row in the selection */
1187 for (bufp = buffer, row = row1; row <= row2; row++)
1189 if (row == row1)
1190 start_col = col1;
1191 else
1192 start_col = 0;
1194 if (row == row2)
1195 end_col = col2;
1196 else
1197 end_col = Columns;
1199 line_end_col = clip_get_line_end(row);
1201 /* See if we need to nuke some trailing whitespace */
1202 if (end_col >= Columns && (row < row2 || end_col > line_end_col))
1204 /* Get rid of trailing whitespace */
1205 end_col = line_end_col;
1206 if (end_col < start_col)
1207 end_col = start_col;
1209 /* If the last line extended to the end, add an extra newline */
1210 if (row == row2)
1211 add_newline_flag = TRUE;
1214 /* If after the first row, we need to always add a newline */
1215 if (row > row1 && !LineWraps[row - 1])
1216 *bufp++ = NL;
1218 if (row < screen_Rows && end_col <= screen_Columns)
1220 #ifdef FEAT_MBYTE
1221 if (enc_dbcs != 0)
1223 int i;
1225 p = ScreenLines + LineOffset[row];
1226 for (i = start_col; i < end_col; ++i)
1227 if (enc_dbcs == DBCS_JPNU && p[i] == 0x8e)
1229 /* single-width double-byte char */
1230 *bufp++ = 0x8e;
1231 *bufp++ = ScreenLines2[LineOffset[row] + i];
1233 else
1235 *bufp++ = p[i];
1236 if (MB_BYTE2LEN(p[i]) == 2)
1237 *bufp++ = p[++i];
1240 else if (enc_utf8)
1242 int off;
1243 int i;
1244 int ci;
1246 off = LineOffset[row];
1247 for (i = start_col; i < end_col; ++i)
1249 /* The base character is either in ScreenLinesUC[] or
1250 * ScreenLines[]. */
1251 if (ScreenLinesUC[off + i] == 0)
1252 *bufp++ = ScreenLines[off + i];
1253 else
1255 bufp += utf_char2bytes(ScreenLinesUC[off + i], bufp);
1256 for (ci = 0; ci < Screen_mco; ++ci)
1258 /* Add a composing character. */
1259 if (ScreenLinesC[ci][off + i] == 0)
1260 break;
1261 bufp += utf_char2bytes(ScreenLinesC[ci][off + i],
1262 bufp);
1265 /* Skip right halve of double-wide character. */
1266 if (ScreenLines[off + i + 1] == 0)
1267 ++i;
1270 else
1271 #endif
1273 STRNCPY(bufp, ScreenLines + LineOffset[row] + start_col,
1274 end_col - start_col);
1275 bufp += end_col - start_col;
1280 /* Add a newline at the end if the selection ended there */
1281 if (add_newline_flag)
1282 *bufp++ = NL;
1284 /* First cleanup any old selection and become the owner. */
1285 clip_free_selection(&clip_star);
1286 clip_own_selection(&clip_star);
1288 /* Yank the text into the '*' register. */
1289 clip_yank_selection(MCHAR, buffer, (long)(bufp - buffer), &clip_star);
1291 /* Make the register contents available to the outside world. */
1292 clip_gen_set_selection(&clip_star);
1294 #ifdef FEAT_X11
1295 if (both)
1297 /* Do the same for the '+' register. */
1298 clip_free_selection(&clip_plus);
1299 clip_own_selection(&clip_plus);
1300 clip_yank_selection(MCHAR, buffer, (long)(bufp - buffer), &clip_plus);
1301 clip_gen_set_selection(&clip_plus);
1303 #endif
1304 vim_free(buffer);
1308 * Find the starting and ending positions of the word at the given row and
1309 * column. Only white-separated words are recognized here.
1311 #define CHAR_CLASS(c) (c <= ' ' ? ' ' : vim_iswordc(c))
1313 static void
1314 clip_get_word_boundaries(cb, row, col)
1315 VimClipboard *cb;
1316 int row;
1317 int col;
1319 int start_class;
1320 int temp_col;
1321 char_u *p;
1322 #ifdef FEAT_MBYTE
1323 int mboff;
1324 #endif
1326 if (row >= screen_Rows || col >= screen_Columns || ScreenLines == NULL)
1327 return;
1329 p = ScreenLines + LineOffset[row];
1330 #ifdef FEAT_MBYTE
1331 /* Correct for starting in the right halve of a double-wide char */
1332 if (enc_dbcs != 0)
1333 col -= dbcs_screen_head_off(p, p + col);
1334 else if (enc_utf8 && p[col] == 0)
1335 --col;
1336 #endif
1337 start_class = CHAR_CLASS(p[col]);
1339 temp_col = col;
1340 for ( ; temp_col > 0; temp_col--)
1341 #ifdef FEAT_MBYTE
1342 if (enc_dbcs != 0
1343 && (mboff = dbcs_screen_head_off(p, p + temp_col - 1)) > 0)
1344 temp_col -= mboff;
1345 else
1346 #endif
1347 if (CHAR_CLASS(p[temp_col - 1]) != start_class
1348 #ifdef FEAT_MBYTE
1349 && !(enc_utf8 && p[temp_col - 1] == 0)
1350 #endif
1352 break;
1353 cb->word_start_col = temp_col;
1355 temp_col = col;
1356 for ( ; temp_col < screen_Columns; temp_col++)
1357 #ifdef FEAT_MBYTE
1358 if (enc_dbcs != 0 && dbcs_ptr2cells(p + temp_col) == 2)
1359 ++temp_col;
1360 else
1361 #endif
1362 if (CHAR_CLASS(p[temp_col]) != start_class
1363 #ifdef FEAT_MBYTE
1364 && !(enc_utf8 && p[temp_col] == 0)
1365 #endif
1367 break;
1368 cb->word_end_col = temp_col;
1372 * Find the column position for the last non-whitespace character on the given
1373 * line.
1375 static int
1376 clip_get_line_end(row)
1377 int row;
1379 int i;
1381 if (row >= screen_Rows || ScreenLines == NULL)
1382 return 0;
1383 for (i = screen_Columns; i > 0; i--)
1384 if (ScreenLines[LineOffset[row] + i - 1] != ' ')
1385 break;
1386 return i;
1390 * Update the currently selected region by adding and/or subtracting from the
1391 * beginning or end and inverting the changed area(s).
1393 static void
1394 clip_update_modeless_selection(cb, row1, col1, row2, col2)
1395 VimClipboard *cb;
1396 int row1;
1397 int col1;
1398 int row2;
1399 int col2;
1401 /* See if we changed at the beginning of the selection */
1402 if (row1 != cb->start.lnum || col1 != (int)cb->start.col)
1404 clip_invert_area(row1, col1, (int)cb->start.lnum, cb->start.col,
1405 CLIP_TOGGLE);
1406 cb->start.lnum = row1;
1407 cb->start.col = col1;
1410 /* See if we changed at the end of the selection */
1411 if (row2 != cb->end.lnum || col2 != (int)cb->end.col)
1413 clip_invert_area((int)cb->end.lnum, cb->end.col, row2, col2,
1414 CLIP_TOGGLE);
1415 cb->end.lnum = row2;
1416 cb->end.col = col2;
1421 clip_gen_own_selection(cbd)
1422 VimClipboard *cbd;
1424 #ifdef FEAT_XCLIPBOARD
1425 # ifdef FEAT_GUI
1426 if (gui.in_use)
1427 return clip_mch_own_selection(cbd);
1428 else
1429 # endif
1430 return clip_xterm_own_selection(cbd);
1431 #else
1432 return clip_mch_own_selection(cbd);
1433 #endif
1436 void
1437 clip_gen_lose_selection(cbd)
1438 VimClipboard *cbd;
1440 #ifdef FEAT_XCLIPBOARD
1441 # ifdef FEAT_GUI
1442 if (gui.in_use)
1443 clip_mch_lose_selection(cbd);
1444 else
1445 # endif
1446 clip_xterm_lose_selection(cbd);
1447 #else
1448 clip_mch_lose_selection(cbd);
1449 #endif
1452 void
1453 clip_gen_set_selection(cbd)
1454 VimClipboard *cbd;
1456 #ifdef FEAT_XCLIPBOARD
1457 # ifdef FEAT_GUI
1458 if (gui.in_use)
1459 clip_mch_set_selection(cbd);
1460 else
1461 # endif
1462 clip_xterm_set_selection(cbd);
1463 #else
1464 clip_mch_set_selection(cbd);
1465 #endif
1468 void
1469 clip_gen_request_selection(cbd)
1470 VimClipboard *cbd;
1472 #ifdef FEAT_XCLIPBOARD
1473 # ifdef FEAT_GUI
1474 if (gui.in_use)
1475 clip_mch_request_selection(cbd);
1476 else
1477 # endif
1478 clip_xterm_request_selection(cbd);
1479 #else
1480 clip_mch_request_selection(cbd);
1481 #endif
1484 #endif /* FEAT_CLIPBOARD */
1486 /*****************************************************************************
1487 * Functions that handle the input buffer.
1488 * This is used for any GUI version, and the unix terminal version.
1490 * For Unix, the input characters are buffered to be able to check for a
1491 * CTRL-C. This should be done with signals, but I don't know how to do that
1492 * in a portable way for a tty in RAW mode.
1494 * For the client-server code in the console the received keys are put in the
1495 * input buffer.
1498 #if defined(USE_INPUT_BUF) || defined(PROTO)
1501 * Internal typeahead buffer. Includes extra space for long key code
1502 * descriptions which would otherwise overflow. The buffer is considered full
1503 * when only this extra space (or part of it) remains.
1505 #if defined(FEAT_SUN_WORKSHOP) || defined(FEAT_NETBEANS_INTG) \
1506 || defined(FEAT_CLIENTSERVER)
1508 * Sun WorkShop and NetBeans stuff debugger commands into the input buffer.
1509 * This requires a larger buffer...
1510 * (Madsen) Go with this for remote input as well ...
1512 # define INBUFLEN 4096
1513 #else
1514 # define INBUFLEN 250
1515 #endif
1517 static char_u inbuf[INBUFLEN + MAX_KEY_CODE_LEN];
1518 static int inbufcount = 0; /* number of chars in inbuf[] */
1521 * vim_is_input_buf_full(), vim_is_input_buf_empty(), add_to_input_buf(), and
1522 * trash_input_buf() are functions for manipulating the input buffer. These
1523 * are used by the gui_* calls when a GUI is used to handle keyboard input.
1527 vim_is_input_buf_full()
1529 return (inbufcount >= INBUFLEN);
1533 vim_is_input_buf_empty()
1535 return (inbufcount == 0);
1538 #if defined(FEAT_OLE) || defined(PROTO)
1540 vim_free_in_input_buf()
1542 return (INBUFLEN - inbufcount);
1544 #endif
1546 #if defined(FEAT_GUI_GTK) || defined(PROTO)
1548 vim_used_in_input_buf()
1550 return inbufcount;
1552 #endif
1554 #if defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) || defined(PROTO)
1556 * Return the current contents of the input buffer and make it empty.
1557 * The returned pointer must be passed to set_input_buf() later.
1559 char_u *
1560 get_input_buf()
1562 garray_T *gap;
1564 /* We use a growarray to store the data pointer and the length. */
1565 gap = (garray_T *)alloc((unsigned)sizeof(garray_T));
1566 if (gap != NULL)
1568 /* Add one to avoid a zero size. */
1569 gap->ga_data = alloc((unsigned)inbufcount + 1);
1570 if (gap->ga_data != NULL)
1571 mch_memmove(gap->ga_data, inbuf, (size_t)inbufcount);
1572 gap->ga_len = inbufcount;
1574 trash_input_buf();
1575 return (char_u *)gap;
1579 * Restore the input buffer with a pointer returned from get_input_buf().
1580 * The allocated memory is freed, this only works once!
1582 void
1583 set_input_buf(p)
1584 char_u *p;
1586 garray_T *gap = (garray_T *)p;
1588 if (gap != NULL)
1590 if (gap->ga_data != NULL)
1592 mch_memmove(inbuf, gap->ga_data, gap->ga_len);
1593 inbufcount = gap->ga_len;
1594 vim_free(gap->ga_data);
1596 vim_free(gap);
1599 #endif
1601 #if defined(FEAT_GUI) \
1602 || defined(FEAT_MOUSE_GPM) || defined(FEAT_SYSMOUSE) \
1603 || defined(FEAT_XCLIPBOARD) || defined(VMS) \
1604 || defined(FEAT_SNIFF) || defined(FEAT_CLIENTSERVER) \
1605 || defined(PROTO)
1607 * Add the given bytes to the input buffer
1608 * Special keys start with CSI. A real CSI must have been translated to
1609 * CSI KS_EXTRA KE_CSI. K_SPECIAL doesn't require translation.
1611 void
1612 add_to_input_buf(s, len)
1613 char_u *s;
1614 int len;
1616 if (inbufcount + len > INBUFLEN + MAX_KEY_CODE_LEN)
1617 return; /* Shouldn't ever happen! */
1619 #ifdef FEAT_HANGULIN
1620 if ((State & (INSERT|CMDLINE)) && hangul_input_state_get())
1621 if ((len = hangul_input_process(s, len)) == 0)
1622 return;
1623 #endif
1625 while (len--)
1626 inbuf[inbufcount++] = *s++;
1628 #endif
1630 #if ((defined(FEAT_XIM) || defined(FEAT_DND)) && defined(FEAT_GUI_GTK)) \
1631 || defined(FEAT_GUI_MSWIN) \
1632 || defined(FEAT_GUI_MAC) \
1633 || (defined(FEAT_MBYTE) && defined(FEAT_MBYTE_IME)) \
1634 || (defined(FEAT_GUI) && (!defined(USE_ON_FLY_SCROLL) \
1635 || defined(FEAT_MENU))) \
1636 || defined(PROTO)
1638 * Add "str[len]" to the input buffer while escaping CSI bytes.
1640 void
1641 add_to_input_buf_csi(char_u *str, int len)
1643 int i;
1644 char_u buf[2];
1646 for (i = 0; i < len; ++i)
1648 add_to_input_buf(str + i, 1);
1649 if (str[i] == CSI)
1651 /* Turn CSI into K_CSI. */
1652 buf[0] = KS_EXTRA;
1653 buf[1] = (int)KE_CSI;
1654 add_to_input_buf(buf, 2);
1658 #endif
1660 #if defined(FEAT_HANGULIN) || defined(PROTO)
1661 void
1662 push_raw_key (s, len)
1663 char_u *s;
1664 int len;
1666 while (len--)
1667 inbuf[inbufcount++] = *s++;
1669 #endif
1671 #if defined(FEAT_GUI) || defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) \
1672 || defined(PROTO)
1673 /* Remove everything from the input buffer. Called when ^C is found */
1674 void
1675 trash_input_buf()
1677 inbufcount = 0;
1679 #endif
1682 * Read as much data from the input buffer as possible up to maxlen, and store
1683 * it in buf.
1684 * Note: this function used to be Read() in unix.c
1687 read_from_input_buf(buf, maxlen)
1688 char_u *buf;
1689 long maxlen;
1691 if (inbufcount == 0) /* if the buffer is empty, fill it */
1692 fill_input_buf(TRUE);
1693 if (maxlen > inbufcount)
1694 maxlen = inbufcount;
1695 mch_memmove(buf, inbuf, (size_t)maxlen);
1696 inbufcount -= maxlen;
1697 if (inbufcount)
1698 mch_memmove(inbuf, inbuf + maxlen, (size_t)inbufcount);
1699 return (int)maxlen;
1702 void
1703 fill_input_buf(exit_on_error)
1704 int exit_on_error UNUSED;
1706 #if defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X_UNIX)
1707 int len;
1708 int try;
1709 static int did_read_something = FALSE;
1710 # ifdef FEAT_MBYTE
1711 static char_u *rest = NULL; /* unconverted rest of previous read */
1712 static int restlen = 0;
1713 int unconverted;
1714 # endif
1715 #endif
1717 #ifdef FEAT_GUI
1718 if (gui.in_use
1719 # ifdef NO_CONSOLE_INPUT
1720 /* Don't use the GUI input when the window hasn't been opened yet.
1721 * We get here from ui_inchar() when we should try reading from stdin. */
1722 && !no_console_input()
1723 # endif
1726 gui_mch_update();
1727 return;
1729 #endif
1730 #if defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X_UNIX)
1731 if (vim_is_input_buf_full())
1732 return;
1734 * Fill_input_buf() is only called when we really need a character.
1735 * If we can't get any, but there is some in the buffer, just return.
1736 * If we can't get any, and there isn't any in the buffer, we give up and
1737 * exit Vim.
1739 # ifdef __BEOS__
1741 * On the BeBox version (for now), all input is secretly performed within
1742 * beos_select() which is called from RealWaitForChar().
1744 while (!vim_is_input_buf_full() && RealWaitForChar(read_cmd_fd, 0, NULL))
1746 len = inbufcount;
1747 inbufcount = 0;
1748 # else
1750 # ifdef FEAT_SNIFF
1751 if (sniff_request_waiting)
1753 add_to_input_buf((char_u *)"\233sniff",6); /* results in K_SNIFF */
1754 sniff_request_waiting = 0;
1755 want_sniff_request = 0;
1756 return;
1758 # endif
1760 # ifdef FEAT_MBYTE
1761 if (rest != NULL)
1763 /* Use remainder of previous call, starts with an invalid character
1764 * that may become valid when reading more. */
1765 if (restlen > INBUFLEN - inbufcount)
1766 unconverted = INBUFLEN - inbufcount;
1767 else
1768 unconverted = restlen;
1769 mch_memmove(inbuf + inbufcount, rest, unconverted);
1770 if (unconverted == restlen)
1772 vim_free(rest);
1773 rest = NULL;
1775 else
1777 restlen -= unconverted;
1778 mch_memmove(rest, rest + unconverted, restlen);
1780 inbufcount += unconverted;
1782 else
1783 unconverted = 0;
1784 #endif
1786 len = 0; /* to avoid gcc warning */
1787 for (try = 0; try < 100; ++try)
1789 # ifdef VMS
1790 len = vms_read(
1791 # else
1792 len = read(read_cmd_fd,
1793 # endif
1794 (char *)inbuf + inbufcount, (size_t)((INBUFLEN - inbufcount)
1795 # ifdef FEAT_MBYTE
1796 / input_conv.vc_factor
1797 # endif
1799 # if 0
1800 ) /* avoid syntax highlight error */
1801 # endif
1803 if (len > 0 || got_int)
1804 break;
1806 * If reading stdin results in an error, continue reading stderr.
1807 * This helps when using "foo | xargs vim".
1809 if (!did_read_something && !isatty(read_cmd_fd) && read_cmd_fd == 0)
1811 int m = cur_tmode;
1813 /* We probably set the wrong file descriptor to raw mode. Switch
1814 * back to cooked mode, use another descriptor and set the mode to
1815 * what it was. */
1816 settmode(TMODE_COOK);
1817 #ifdef HAVE_DUP
1818 /* Use stderr for stdin, also works for shell commands. */
1819 close(0);
1820 ignored = dup(2);
1821 #else
1822 read_cmd_fd = 2; /* read from stderr instead of stdin */
1823 #endif
1824 settmode(m);
1826 if (!exit_on_error)
1827 return;
1829 # endif
1830 if (len <= 0 && !got_int)
1831 read_error_exit();
1832 if (len > 0)
1833 did_read_something = TRUE;
1834 if (got_int)
1836 /* Interrupted, pretend a CTRL-C was typed. */
1837 inbuf[0] = 3;
1838 inbufcount = 1;
1840 else
1842 # ifdef FEAT_MBYTE
1844 * May perform conversion on the input characters.
1845 * Include the unconverted rest of the previous call.
1846 * If there is an incomplete char at the end it is kept for the next
1847 * time, reading more bytes should make conversion possible.
1848 * Don't do this in the unlikely event that the input buffer is too
1849 * small ("rest" still contains more bytes).
1851 if (input_conv.vc_type != CONV_NONE)
1853 inbufcount -= unconverted;
1854 len = convert_input_safe(inbuf + inbufcount,
1855 len + unconverted, INBUFLEN - inbufcount,
1856 rest == NULL ? &rest : NULL, &restlen);
1858 # endif
1859 while (len-- > 0)
1862 * if a CTRL-C was typed, remove it from the buffer and set got_int
1864 if (inbuf[inbufcount] == 3 && ctrl_c_interrupts)
1866 /* remove everything typed before the CTRL-C */
1867 mch_memmove(inbuf, inbuf + inbufcount, (size_t)(len + 1));
1868 inbufcount = 0;
1869 got_int = TRUE;
1871 ++inbufcount;
1874 #endif /* UNIX or OS2 or VMS*/
1876 #endif /* defined(UNIX) || defined(FEAT_GUI) || defined(OS2) || defined(VMS) */
1879 * Exit because of an input read error.
1881 void
1882 read_error_exit()
1884 if (silent_mode) /* Normal way to exit for "ex -s" */
1885 getout(0);
1886 STRCPY(IObuff, _("Vim: Error reading input, exiting...\n"));
1887 preserve_exit();
1890 #if defined(CURSOR_SHAPE) || defined(PROTO)
1892 * May update the shape of the cursor.
1894 void
1895 ui_cursor_shape()
1897 # ifdef FEAT_GUI
1898 if (gui.in_use)
1899 gui_update_cursor_later();
1900 else
1901 # endif
1902 term_cursor_shape();
1904 # ifdef MCH_CURSOR_SHAPE
1905 mch_update_cursor();
1906 # endif
1908 #endif
1910 #if defined(FEAT_CLIPBOARD) || defined(FEAT_GUI) || defined(FEAT_RIGHTLEFT) \
1911 || defined(FEAT_MBYTE) || defined(PROTO)
1913 * Check bounds for column number
1916 check_col(col)
1917 int col;
1919 if (col < 0)
1920 return 0;
1921 if (col >= (int)screen_Columns)
1922 return (int)screen_Columns - 1;
1923 return col;
1927 * Check bounds for row number
1930 check_row(row)
1931 int row;
1933 if (row < 0)
1934 return 0;
1935 if (row >= (int)screen_Rows)
1936 return (int)screen_Rows - 1;
1937 return row;
1939 #endif
1942 * Stuff for the X clipboard. Shared between VMS and Unix.
1945 #if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) || defined(PROTO)
1946 # include <X11/Xatom.h>
1947 # include <X11/Intrinsic.h>
1950 * Open the application context (if it hasn't been opened yet).
1951 * Used for Motif and Athena GUI and the xterm clipboard.
1953 void
1954 open_app_context()
1956 if (app_context == NULL)
1958 XtToolkitInitialize();
1959 app_context = XtCreateApplicationContext();
1963 static Atom vim_atom; /* Vim's own special selection format */
1964 #ifdef FEAT_MBYTE
1965 static Atom vimenc_atom; /* Vim's extended selection format */
1966 #endif
1967 static Atom compound_text_atom;
1968 static Atom text_atom;
1969 static Atom targets_atom;
1971 void
1972 x11_setup_atoms(dpy)
1973 Display *dpy;
1975 vim_atom = XInternAtom(dpy, VIM_ATOM_NAME, False);
1976 #ifdef FEAT_MBYTE
1977 vimenc_atom = XInternAtom(dpy, VIMENC_ATOM_NAME,False);
1978 #endif
1979 compound_text_atom = XInternAtom(dpy, "COMPOUND_TEXT", False);
1980 text_atom = XInternAtom(dpy, "TEXT", False);
1981 targets_atom = XInternAtom(dpy, "TARGETS", False);
1982 clip_star.sel_atom = XA_PRIMARY;
1983 clip_plus.sel_atom = XInternAtom(dpy, "CLIPBOARD", False);
1987 * X Selection stuff, for cutting and pasting text to other windows.
1990 static void clip_x11_request_selection_cb __ARGS((Widget, XtPointer, Atom *, Atom *, XtPointer, long_u *, int *));
1992 static void
1993 clip_x11_request_selection_cb(w, success, sel_atom, type, value, length,
1994 format)
1995 Widget w UNUSED;
1996 XtPointer success;
1997 Atom *sel_atom;
1998 Atom *type;
1999 XtPointer value;
2000 long_u *length;
2001 int *format;
2003 int motion_type;
2004 long_u len;
2005 char_u *p;
2006 char **text_list = NULL;
2007 VimClipboard *cbd;
2008 #ifdef FEAT_MBYTE
2009 char_u *tmpbuf = NULL;
2010 #endif
2012 if (*sel_atom == clip_plus.sel_atom)
2013 cbd = &clip_plus;
2014 else
2015 cbd = &clip_star;
2017 if (value == NULL || *length == 0)
2019 clip_free_selection(cbd); /* nothing received, clear register */
2020 *(int *)success = FALSE;
2021 return;
2023 motion_type = MCHAR;
2024 p = (char_u *)value;
2025 len = *length;
2026 if (*type == vim_atom)
2028 motion_type = *p++;
2029 len--;
2032 #ifdef FEAT_MBYTE
2033 else if (*type == vimenc_atom)
2035 char_u *enc;
2036 vimconv_T conv;
2037 int convlen;
2039 motion_type = *p++;
2040 --len;
2042 enc = p;
2043 p += STRLEN(p) + 1;
2044 len -= p - enc;
2046 /* If the encoding of the text is different from 'encoding', attempt
2047 * converting it. */
2048 conv.vc_type = CONV_NONE;
2049 convert_setup(&conv, enc, p_enc);
2050 if (conv.vc_type != CONV_NONE)
2052 convlen = len; /* Need to use an int here. */
2053 tmpbuf = string_convert(&conv, p, &convlen);
2054 len = convlen;
2055 if (tmpbuf != NULL)
2056 p = tmpbuf;
2057 convert_setup(&conv, NULL, NULL);
2060 #endif
2062 else if (*type == compound_text_atom || (
2063 #ifdef FEAT_MBYTE
2064 enc_dbcs != 0 &&
2065 #endif
2066 *type == text_atom))
2068 XTextProperty text_prop;
2069 int n_text = 0;
2070 int status;
2072 text_prop.value = (unsigned char *)value;
2073 text_prop.encoding = *type;
2074 text_prop.format = *format;
2075 text_prop.nitems = len;
2076 status = XmbTextPropertyToTextList(X_DISPLAY, &text_prop,
2077 &text_list, &n_text);
2078 if (status != Success || n_text < 1)
2080 *(int *)success = FALSE;
2081 return;
2083 p = (char_u *)text_list[0];
2084 len = STRLEN(p);
2086 clip_yank_selection(motion_type, p, (long)len, cbd);
2088 if (text_list != NULL)
2089 XFreeStringList(text_list);
2090 #ifdef FEAT_MBYTE
2091 vim_free(tmpbuf);
2092 #endif
2093 XtFree((char *)value);
2094 *(int *)success = TRUE;
2097 void
2098 clip_x11_request_selection(myShell, dpy, cbd)
2099 Widget myShell;
2100 Display *dpy;
2101 VimClipboard *cbd;
2103 XEvent event;
2104 Atom type;
2105 static int success;
2106 int i;
2107 time_t start_time;
2108 int timed_out = FALSE;
2110 for (i =
2111 #ifdef FEAT_MBYTE
2113 #else
2115 #endif
2116 ; i < 5; i++)
2118 switch (i)
2120 #ifdef FEAT_MBYTE
2121 case 0: type = vimenc_atom; break;
2122 #endif
2123 case 1: type = vim_atom; break;
2124 case 2: type = compound_text_atom; break;
2125 case 3: type = text_atom; break;
2126 default: type = XA_STRING;
2128 success = MAYBE;
2129 XtGetSelectionValue(myShell, cbd->sel_atom, type,
2130 clip_x11_request_selection_cb, (XtPointer)&success, CurrentTime);
2132 /* Make sure the request for the selection goes out before waiting for
2133 * a response. */
2134 XFlush(dpy);
2137 * Wait for result of selection request, otherwise if we type more
2138 * characters, then they will appear before the one that requested the
2139 * paste! Don't worry, we will catch up with any other events later.
2141 start_time = time(NULL);
2142 while (success == MAYBE)
2144 if (XCheckTypedEvent(dpy, SelectionNotify, &event)
2145 || XCheckTypedEvent(dpy, SelectionRequest, &event)
2146 || XCheckTypedEvent(dpy, PropertyNotify, &event))
2148 /* This is where clip_x11_request_selection_cb() should be
2149 * called. It may actually happen a bit later, so we loop
2150 * until "success" changes.
2151 * We may get a SelectionRequest here and if we don't handle
2152 * it we hang. KDE klipper does this, for example.
2153 * We need to handle a PropertyNotify for large selections. */
2154 XtDispatchEvent(&event);
2155 continue;
2158 /* Time out after 2 to 3 seconds to avoid that we hang when the
2159 * other process doesn't respond. Note that the SelectionNotify
2160 * event may still come later when the selection owner comes back
2161 * to life and the text gets inserted unexpectedly. Don't know
2162 * why that happens or how to avoid that :-(. */
2163 if (time(NULL) > start_time + 2)
2165 timed_out = TRUE;
2166 break;
2169 /* Do we need this? Probably not. */
2170 XSync(dpy, False);
2172 /* Wait for 1 msec to avoid that we eat up all CPU time. */
2173 ui_delay(1L, TRUE);
2176 if (success == TRUE)
2177 return;
2179 /* don't do a retry with another type after timing out, otherwise we
2180 * hang for 15 seconds. */
2181 if (timed_out)
2182 break;
2185 /* Final fallback position - use the X CUT_BUFFER0 store */
2186 yank_cut_buffer0(dpy, cbd);
2189 static Boolean clip_x11_convert_selection_cb __ARGS((Widget, Atom *, Atom *, Atom *, XtPointer *, long_u *, int *));
2191 static Boolean
2192 clip_x11_convert_selection_cb(w, sel_atom, target, type, value, length, format)
2193 Widget w UNUSED;
2194 Atom *sel_atom;
2195 Atom *target;
2196 Atom *type;
2197 XtPointer *value;
2198 long_u *length;
2199 int *format;
2201 char_u *string;
2202 char_u *result;
2203 int motion_type;
2204 VimClipboard *cbd;
2205 int i;
2207 if (*sel_atom == clip_plus.sel_atom)
2208 cbd = &clip_plus;
2209 else
2210 cbd = &clip_star;
2212 if (!cbd->owned)
2213 return False; /* Shouldn't ever happen */
2215 /* requestor wants to know what target types we support */
2216 if (*target == targets_atom)
2218 Atom *array;
2220 if ((array = (Atom *)XtMalloc((unsigned)(sizeof(Atom) * 6))) == NULL)
2221 return False;
2222 *value = (XtPointer)array;
2223 i = 0;
2224 array[i++] = XA_STRING;
2225 array[i++] = targets_atom;
2226 #ifdef FEAT_MBYTE
2227 array[i++] = vimenc_atom;
2228 #endif
2229 array[i++] = vim_atom;
2230 array[i++] = text_atom;
2231 array[i++] = compound_text_atom;
2232 *type = XA_ATOM;
2233 /* This used to be: *format = sizeof(Atom) * 8; but that caused
2234 * crashes on 64 bit machines. (Peter Derr) */
2235 *format = 32;
2236 *length = i;
2237 return True;
2240 if ( *target != XA_STRING
2241 #ifdef FEAT_MBYTE
2242 && *target != vimenc_atom
2243 #endif
2244 && *target != vim_atom
2245 && *target != text_atom
2246 && *target != compound_text_atom)
2247 return False;
2249 clip_get_selection(cbd);
2250 motion_type = clip_convert_selection(&string, length, cbd);
2251 if (motion_type < 0)
2252 return False;
2254 /* For our own format, the first byte contains the motion type */
2255 if (*target == vim_atom)
2256 (*length)++;
2258 #ifdef FEAT_MBYTE
2259 /* Our own format with encoding: motion 'encoding' NUL text */
2260 if (*target == vimenc_atom)
2261 *length += STRLEN(p_enc) + 2;
2262 #endif
2264 *value = XtMalloc((Cardinal)*length);
2265 result = (char_u *)*value;
2266 if (result == NULL)
2268 vim_free(string);
2269 return False;
2272 if (*target == XA_STRING)
2274 mch_memmove(result, string, (size_t)(*length));
2275 *type = XA_STRING;
2277 else if (*target == compound_text_atom
2278 || *target == text_atom)
2280 XTextProperty text_prop;
2281 char *string_nt = (char *)alloc((unsigned)*length + 1);
2283 /* create NUL terminated string which XmbTextListToTextProperty wants */
2284 mch_memmove(string_nt, string, (size_t)*length);
2285 string_nt[*length] = NUL;
2286 XmbTextListToTextProperty(X_DISPLAY, (char **)&string_nt, 1,
2287 XCompoundTextStyle, &text_prop);
2288 vim_free(string_nt);
2289 XtFree(*value); /* replace with COMPOUND text */
2290 *value = (XtPointer)(text_prop.value); /* from plain text */
2291 *length = text_prop.nitems;
2292 *type = compound_text_atom;
2295 #ifdef FEAT_MBYTE
2296 else if (*target == vimenc_atom)
2298 int l = STRLEN(p_enc);
2300 result[0] = motion_type;
2301 STRCPY(result + 1, p_enc);
2302 mch_memmove(result + l + 2, string, (size_t)(*length - l - 2));
2303 *type = vimenc_atom;
2305 #endif
2307 else
2309 result[0] = motion_type;
2310 mch_memmove(result + 1, string, (size_t)(*length - 1));
2311 *type = vim_atom;
2313 *format = 8; /* 8 bits per char */
2314 vim_free(string);
2315 return True;
2318 static void clip_x11_lose_ownership_cb __ARGS((Widget, Atom *));
2320 static void
2321 clip_x11_lose_ownership_cb(w, sel_atom)
2322 Widget w UNUSED;
2323 Atom *sel_atom;
2325 if (*sel_atom == clip_plus.sel_atom)
2326 clip_lose_selection(&clip_plus);
2327 else
2328 clip_lose_selection(&clip_star);
2331 void
2332 clip_x11_lose_selection(myShell, cbd)
2333 Widget myShell;
2334 VimClipboard *cbd;
2336 XtDisownSelection(myShell, cbd->sel_atom, CurrentTime);
2340 clip_x11_own_selection(myShell, cbd)
2341 Widget myShell;
2342 VimClipboard *cbd;
2344 if (XtOwnSelection(myShell, cbd->sel_atom, CurrentTime,
2345 clip_x11_convert_selection_cb, clip_x11_lose_ownership_cb,
2346 NULL) == False)
2347 return FAIL;
2348 return OK;
2352 * Send the current selection to the clipboard. Do nothing for X because we
2353 * will fill in the selection only when requested by another app.
2355 void
2356 clip_x11_set_selection(cbd)
2357 VimClipboard *cbd UNUSED;
2360 #endif
2362 #if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) \
2363 || defined(FEAT_GUI_GTK) || defined(PROTO)
2365 * Get the contents of the X CUT_BUFFER0 and put it in "cbd".
2367 void
2368 yank_cut_buffer0(dpy, cbd)
2369 Display *dpy;
2370 VimClipboard *cbd;
2372 int nbytes = 0;
2373 char_u *buffer = (char_u *)XFetchBuffer(dpy, &nbytes, 0);
2375 if (nbytes > 0)
2377 #ifdef FEAT_MBYTE
2378 int done = FALSE;
2380 /* CUT_BUFFER0 is supposed to be always latin1. Convert to 'enc' when
2381 * using a multi-byte encoding. Conversion between two 8-bit
2382 * character sets usually fails and the text might actually be in
2383 * 'enc' anyway. */
2384 if (has_mbyte)
2386 char_u *conv_buf;
2387 vimconv_T vc;
2389 vc.vc_type = CONV_NONE;
2390 if (convert_setup(&vc, (char_u *)"latin1", p_enc) == OK)
2392 conv_buf = string_convert(&vc, buffer, &nbytes);
2393 if (conv_buf != NULL)
2395 clip_yank_selection(MCHAR, conv_buf, (long)nbytes, cbd);
2396 vim_free(conv_buf);
2397 done = TRUE;
2399 convert_setup(&vc, NULL, NULL);
2402 if (!done) /* use the text without conversion */
2403 #endif
2404 clip_yank_selection(MCHAR, buffer, (long)nbytes, cbd);
2405 XFree((void *)buffer);
2406 if (p_verbose > 0)
2408 verbose_enter();
2409 verb_msg((char_u *)_("Used CUT_BUFFER0 instead of empty selection"));
2410 verbose_leave();
2414 #endif
2416 #if defined(FEAT_MOUSE) || defined(PROTO)
2419 * Move the cursor to the specified row and column on the screen.
2420 * Change current window if necessary. Returns an integer with the
2421 * CURSOR_MOVED bit set if the cursor has moved or unset otherwise.
2423 * The MOUSE_FOLD_CLOSE bit is set when clicked on the '-' in a fold column.
2424 * The MOUSE_FOLD_OPEN bit is set when clicked on the '+' in a fold column.
2426 * If flags has MOUSE_FOCUS, then the current window will not be changed, and
2427 * if the mouse is outside the window then the text will scroll, or if the
2428 * mouse was previously on a status line, then the status line may be dragged.
2430 * If flags has MOUSE_MAY_VIS, then VIsual mode will be started before the
2431 * cursor is moved unless the cursor was on a status line.
2432 * This function returns one of IN_UNKNOWN, IN_BUFFER, IN_STATUS_LINE or
2433 * IN_SEP_LINE depending on where the cursor was clicked.
2435 * If flags has MOUSE_MAY_STOP_VIS, then Visual mode will be stopped, unless
2436 * the mouse is on the status line of the same window.
2438 * If flags has MOUSE_DID_MOVE, nothing is done if the mouse didn't move since
2439 * the last call.
2441 * If flags has MOUSE_SETPOS, nothing is done, only the current position is
2442 * remembered.
2445 jump_to_mouse(flags, inclusive, which_button)
2446 int flags;
2447 int *inclusive; /* used for inclusive operator, can be NULL */
2448 int which_button; /* MOUSE_LEFT, MOUSE_RIGHT, MOUSE_MIDDLE */
2450 static int on_status_line = 0; /* #lines below bottom of window */
2451 #ifdef FEAT_VERTSPLIT
2452 static int on_sep_line = 0; /* on separator right of window */
2453 #endif
2454 static int prev_row = -1;
2455 static int prev_col = -1;
2456 static win_T *dragwin = NULL; /* window being dragged */
2457 static int did_drag = FALSE; /* drag was noticed */
2459 win_T *wp, *old_curwin;
2460 pos_T old_cursor;
2461 int count;
2462 int first;
2463 int row = mouse_row;
2464 int col = mouse_col;
2465 #ifdef FEAT_FOLDING
2466 int mouse_char;
2467 #endif
2469 mouse_past_bottom = FALSE;
2470 mouse_past_eol = FALSE;
2472 if (flags & MOUSE_RELEASED)
2474 /* On button release we may change window focus if positioned on a
2475 * status line and no dragging happened. */
2476 if (dragwin != NULL && !did_drag)
2477 flags &= ~(MOUSE_FOCUS | MOUSE_DID_MOVE);
2478 dragwin = NULL;
2479 did_drag = FALSE;
2482 if ((flags & MOUSE_DID_MOVE)
2483 && prev_row == mouse_row
2484 && prev_col == mouse_col)
2486 retnomove:
2487 /* before moving the cursor for a left click which is NOT in a status
2488 * line, stop Visual mode */
2489 if (on_status_line)
2490 return IN_STATUS_LINE;
2491 #ifdef FEAT_VERTSPLIT
2492 if (on_sep_line)
2493 return IN_SEP_LINE;
2494 #endif
2495 #ifdef FEAT_VISUAL
2496 if (flags & MOUSE_MAY_STOP_VIS)
2498 end_visual_mode();
2499 redraw_curbuf_later(INVERTED); /* delete the inversion */
2501 #endif
2502 #if defined(FEAT_CMDWIN) && defined(FEAT_CLIPBOARD)
2503 /* Continue a modeless selection in another window. */
2504 if (cmdwin_type != 0 && row < W_WINROW(curwin))
2505 return IN_OTHER_WIN;
2506 #endif
2507 return IN_BUFFER;
2510 prev_row = mouse_row;
2511 prev_col = mouse_col;
2513 if (flags & MOUSE_SETPOS)
2514 goto retnomove; /* ugly goto... */
2516 #ifdef FEAT_FOLDING
2517 /* Remember the character under the mouse, it might be a '-' or '+' in the
2518 * fold column. */
2519 if (row >= 0 && row < Rows && col >= 0 && col <= Columns
2520 && ScreenLines != NULL)
2521 mouse_char = ScreenLines[LineOffset[row] + col];
2522 else
2523 mouse_char = ' ';
2524 #endif
2526 old_curwin = curwin;
2527 old_cursor = curwin->w_cursor;
2529 if (!(flags & MOUSE_FOCUS))
2531 if (row < 0 || col < 0) /* check if it makes sense */
2532 return IN_UNKNOWN;
2534 #ifdef FEAT_WINDOWS
2535 /* find the window where the row is in */
2536 wp = mouse_find_win(&row, &col);
2537 #else
2538 wp = firstwin;
2539 #endif
2540 dragwin = NULL;
2542 * winpos and height may change in win_enter()!
2544 if (row >= wp->w_height) /* In (or below) status line */
2546 on_status_line = row - wp->w_height + 1;
2547 dragwin = wp;
2549 else
2550 on_status_line = 0;
2551 #ifdef FEAT_VERTSPLIT
2552 if (col >= wp->w_width) /* In separator line */
2554 on_sep_line = col - wp->w_width + 1;
2555 dragwin = wp;
2557 else
2558 on_sep_line = 0;
2560 /* The rightmost character of the status line might be a vertical
2561 * separator character if there is no connecting window to the right. */
2562 if (on_status_line && on_sep_line)
2564 if (stl_connected(wp))
2565 on_sep_line = 0;
2566 else
2567 on_status_line = 0;
2569 #endif
2571 #ifdef FEAT_VISUAL
2572 /* Before jumping to another buffer, or moving the cursor for a left
2573 * click, stop Visual mode. */
2574 if (VIsual_active
2575 && (wp->w_buffer != curwin->w_buffer
2576 || (!on_status_line
2577 # ifdef FEAT_VERTSPLIT
2578 && !on_sep_line
2579 # endif
2580 # ifdef FEAT_FOLDING
2581 && (
2582 # ifdef FEAT_RIGHTLEFT
2583 wp->w_p_rl ? col < W_WIDTH(wp) - wp->w_p_fdc :
2584 # endif
2585 col >= wp->w_p_fdc
2586 # ifdef FEAT_CMDWIN
2587 + (cmdwin_type == 0 && wp == curwin ? 0 : 1)
2588 # endif
2590 # endif
2591 && (flags & MOUSE_MAY_STOP_VIS))))
2593 end_visual_mode();
2594 redraw_curbuf_later(INVERTED); /* delete the inversion */
2596 #endif
2597 #ifdef FEAT_CMDWIN
2598 if (cmdwin_type != 0 && wp != curwin)
2600 /* A click outside the command-line window: Use modeless
2601 * selection if possible. Allow dragging the status lines. */
2602 # ifdef FEAT_VERTSPLIT
2603 on_sep_line = 0;
2604 # endif
2605 # ifdef FEAT_CLIPBOARD
2606 if (on_status_line)
2607 return IN_STATUS_LINE;
2608 return IN_OTHER_WIN;
2609 # else
2610 row = 0;
2611 col += wp->w_wincol;
2612 wp = curwin;
2613 # endif
2615 #endif
2616 #ifdef FEAT_WINDOWS
2617 /* Only change window focus when not clicking on or dragging the
2618 * status line. Do change focus when releasing the mouse button
2619 * (MOUSE_FOCUS was set above if we dragged first). */
2620 if (dragwin == NULL || (flags & MOUSE_RELEASED))
2621 win_enter(wp, TRUE); /* can make wp invalid! */
2622 # ifdef CHECK_DOUBLE_CLICK
2623 /* set topline, to be able to check for double click ourselves */
2624 if (curwin != old_curwin)
2625 set_mouse_topline(curwin);
2626 # endif
2627 #endif
2628 if (on_status_line) /* In (or below) status line */
2630 /* Don't use start_arrow() if we're in the same window */
2631 if (curwin == old_curwin)
2632 return IN_STATUS_LINE;
2633 else
2634 return IN_STATUS_LINE | CURSOR_MOVED;
2636 #ifdef FEAT_VERTSPLIT
2637 if (on_sep_line) /* In (or below) status line */
2639 /* Don't use start_arrow() if we're in the same window */
2640 if (curwin == old_curwin)
2641 return IN_SEP_LINE;
2642 else
2643 return IN_SEP_LINE | CURSOR_MOVED;
2645 #endif
2647 curwin->w_cursor.lnum = curwin->w_topline;
2648 #ifdef FEAT_GUI
2649 /* remember topline, needed for double click */
2650 gui_prev_topline = curwin->w_topline;
2651 # ifdef FEAT_DIFF
2652 gui_prev_topfill = curwin->w_topfill;
2653 # endif
2654 #endif
2656 else if (on_status_line && which_button == MOUSE_LEFT)
2658 #ifdef FEAT_WINDOWS
2659 if (dragwin != NULL)
2661 /* Drag the status line */
2662 count = row - dragwin->w_winrow - dragwin->w_height + 1
2663 - on_status_line;
2664 win_drag_status_line(dragwin, count);
2665 did_drag |= count;
2667 #endif
2668 return IN_STATUS_LINE; /* Cursor didn't move */
2670 #ifdef FEAT_VERTSPLIT
2671 else if (on_sep_line && which_button == MOUSE_LEFT)
2673 if (dragwin != NULL)
2675 /* Drag the separator column */
2676 count = col - dragwin->w_wincol - dragwin->w_width + 1
2677 - on_sep_line;
2678 win_drag_vsep_line(dragwin, count);
2679 did_drag |= count;
2681 return IN_SEP_LINE; /* Cursor didn't move */
2683 #endif
2684 else /* keep_window_focus must be TRUE */
2686 #ifdef FEAT_VISUAL
2687 /* before moving the cursor for a left click, stop Visual mode */
2688 if (flags & MOUSE_MAY_STOP_VIS)
2690 end_visual_mode();
2691 redraw_curbuf_later(INVERTED); /* delete the inversion */
2693 #endif
2695 #if defined(FEAT_CMDWIN) && defined(FEAT_CLIPBOARD)
2696 /* Continue a modeless selection in another window. */
2697 if (cmdwin_type != 0 && row < W_WINROW(curwin))
2698 return IN_OTHER_WIN;
2699 #endif
2701 row -= W_WINROW(curwin);
2702 #ifdef FEAT_VERTSPLIT
2703 col -= W_WINCOL(curwin);
2704 #endif
2707 * When clicking beyond the end of the window, scroll the screen.
2708 * Scroll by however many rows outside the window we are.
2710 if (row < 0)
2712 count = 0;
2713 for (first = TRUE; curwin->w_topline > 1; )
2715 #ifdef FEAT_DIFF
2716 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline))
2717 ++count;
2718 else
2719 #endif
2720 count += plines(curwin->w_topline - 1);
2721 if (!first && count > -row)
2722 break;
2723 first = FALSE;
2724 #ifdef FEAT_FOLDING
2725 hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
2726 #endif
2727 #ifdef FEAT_DIFF
2728 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline))
2729 ++curwin->w_topfill;
2730 else
2731 #endif
2733 --curwin->w_topline;
2734 #ifdef FEAT_DIFF
2735 curwin->w_topfill = 0;
2736 #endif
2739 #ifdef FEAT_DIFF
2740 check_topfill(curwin, FALSE);
2741 #endif
2742 curwin->w_valid &=
2743 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
2744 redraw_later(VALID);
2745 row = 0;
2747 else if (row >= curwin->w_height)
2749 count = 0;
2750 for (first = TRUE; curwin->w_topline < curbuf->b_ml.ml_line_count; )
2752 #ifdef FEAT_DIFF
2753 if (curwin->w_topfill > 0)
2754 ++count;
2755 else
2756 #endif
2757 count += plines(curwin->w_topline);
2758 if (!first && count > row - curwin->w_height + 1)
2759 break;
2760 first = FALSE;
2761 #ifdef FEAT_FOLDING
2762 if (hasFolding(curwin->w_topline, NULL, &curwin->w_topline)
2763 && curwin->w_topline == curbuf->b_ml.ml_line_count)
2764 break;
2765 #endif
2766 #ifdef FEAT_DIFF
2767 if (curwin->w_topfill > 0)
2768 --curwin->w_topfill;
2769 else
2770 #endif
2772 ++curwin->w_topline;
2773 #ifdef FEAT_DIFF
2774 curwin->w_topfill =
2775 diff_check_fill(curwin, curwin->w_topline);
2776 #endif
2779 #ifdef FEAT_DIFF
2780 check_topfill(curwin, FALSE);
2781 #endif
2782 redraw_later(VALID);
2783 curwin->w_valid &=
2784 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
2785 row = curwin->w_height - 1;
2787 else if (row == 0)
2789 /* When dragging the mouse, while the text has been scrolled up as
2790 * far as it goes, moving the mouse in the top line should scroll
2791 * the text down (done later when recomputing w_topline). */
2792 if (mouse_dragging > 0
2793 && curwin->w_cursor.lnum
2794 == curwin->w_buffer->b_ml.ml_line_count
2795 && curwin->w_cursor.lnum == curwin->w_topline)
2796 curwin->w_valid &= ~(VALID_TOPLINE);
2800 #ifdef FEAT_FOLDING
2801 /* Check for position outside of the fold column. */
2802 if (
2803 # ifdef FEAT_RIGHTLEFT
2804 curwin->w_p_rl ? col < W_WIDTH(curwin) - curwin->w_p_fdc :
2805 # endif
2806 col >= curwin->w_p_fdc
2807 # ifdef FEAT_CMDWIN
2808 + (cmdwin_type == 0 ? 0 : 1)
2809 # endif
2811 mouse_char = ' ';
2812 #endif
2814 /* compute the position in the buffer line from the posn on the screen */
2815 if (mouse_comp_pos(curwin, &row, &col, &curwin->w_cursor.lnum))
2816 mouse_past_bottom = TRUE;
2818 #ifdef FEAT_VISUAL
2819 /* Start Visual mode before coladvance(), for when 'sel' != "old" */
2820 if ((flags & MOUSE_MAY_VIS) && !VIsual_active)
2822 check_visual_highlight();
2823 VIsual = old_cursor;
2824 VIsual_active = TRUE;
2825 VIsual_reselect = TRUE;
2826 /* if 'selectmode' contains "mouse", start Select mode */
2827 may_start_select('o');
2828 setmouse();
2829 if (p_smd && msg_silent == 0)
2830 redraw_cmdline = TRUE; /* show visual mode later */
2832 #endif
2834 curwin->w_curswant = col;
2835 curwin->w_set_curswant = FALSE; /* May still have been TRUE */
2836 if (coladvance(col) == FAIL) /* Mouse click beyond end of line */
2838 if (inclusive != NULL)
2839 *inclusive = TRUE;
2840 mouse_past_eol = TRUE;
2842 else if (inclusive != NULL)
2843 *inclusive = FALSE;
2845 count = IN_BUFFER;
2846 if (curwin != old_curwin || curwin->w_cursor.lnum != old_cursor.lnum
2847 || curwin->w_cursor.col != old_cursor.col)
2848 count |= CURSOR_MOVED; /* Cursor has moved */
2850 #ifdef FEAT_FOLDING
2851 if (mouse_char == '+')
2852 count |= MOUSE_FOLD_OPEN;
2853 else if (mouse_char != ' ')
2854 count |= MOUSE_FOLD_CLOSE;
2855 #endif
2857 return count;
2861 * Compute the position in the buffer line from the posn on the screen in
2862 * window "win".
2863 * Returns TRUE if the position is below the last line.
2866 mouse_comp_pos(win, rowp, colp, lnump)
2867 win_T *win;
2868 int *rowp;
2869 int *colp;
2870 linenr_T *lnump;
2872 int col = *colp;
2873 int row = *rowp;
2874 linenr_T lnum;
2875 int retval = FALSE;
2876 int off;
2877 int count;
2879 #ifdef FEAT_RIGHTLEFT
2880 if (win->w_p_rl)
2881 col = W_WIDTH(win) - 1 - col;
2882 #endif
2884 lnum = win->w_topline;
2886 while (row > 0)
2888 #ifdef FEAT_DIFF
2889 /* Don't include filler lines in "count" */
2890 if (win->w_p_diff
2891 # ifdef FEAT_FOLDING
2892 && !hasFoldingWin(win, lnum, NULL, NULL, TRUE, NULL)
2893 # endif
2896 if (lnum == win->w_topline)
2897 row -= win->w_topfill;
2898 else
2899 row -= diff_check_fill(win, lnum);
2900 count = plines_win_nofill(win, lnum, TRUE);
2902 else
2903 #endif
2904 count = plines_win(win, lnum, TRUE);
2905 if (count > row)
2906 break; /* Position is in this buffer line. */
2907 #ifdef FEAT_FOLDING
2908 (void)hasFoldingWin(win, lnum, NULL, &lnum, TRUE, NULL);
2909 #endif
2910 if (lnum == win->w_buffer->b_ml.ml_line_count)
2912 retval = TRUE;
2913 break; /* past end of file */
2915 row -= count;
2916 ++lnum;
2919 if (!retval)
2921 /* Compute the column without wrapping. */
2922 off = win_col_off(win) - win_col_off2(win);
2923 if (col < off)
2924 col = off;
2925 col += row * (W_WIDTH(win) - off);
2926 /* add skip column (for long wrapping line) */
2927 col += win->w_skipcol;
2930 if (!win->w_p_wrap)
2931 col += win->w_leftcol;
2933 /* skip line number and fold column in front of the line */
2934 col -= win_col_off(win);
2935 if (col < 0)
2937 #ifdef FEAT_NETBEANS_INTG
2938 if (usingNetbeans)
2939 netbeans_gutter_click(lnum);
2940 #endif
2941 col = 0;
2944 *colp = col;
2945 *rowp = row;
2946 *lnump = lnum;
2947 return retval;
2950 #if defined(FEAT_WINDOWS) || defined(PROTO)
2952 * Find the window at screen position "*rowp" and "*colp". The positions are
2953 * updated to become relative to the top-left of the window.
2955 win_T *
2956 mouse_find_win(rowp, colp)
2957 int *rowp;
2958 int *colp UNUSED;
2960 frame_T *fp;
2962 fp = topframe;
2963 *rowp -= firstwin->w_winrow;
2964 for (;;)
2966 if (fp->fr_layout == FR_LEAF)
2967 break;
2968 #ifdef FEAT_VERTSPLIT
2969 if (fp->fr_layout == FR_ROW)
2971 for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next)
2973 if (*colp < fp->fr_width)
2974 break;
2975 *colp -= fp->fr_width;
2978 #endif
2979 else /* fr_layout == FR_COL */
2981 for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next)
2983 if (*rowp < fp->fr_height)
2984 break;
2985 *rowp -= fp->fr_height;
2989 return fp->fr_win;
2991 #endif
2993 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined (FEAT_GUI_MAC) \
2994 || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2995 || defined(FEAT_GUI_PHOTON) || defined(PROTO)
2997 * Translate window coordinates to buffer position without any side effects
3000 get_fpos_of_mouse(mpos)
3001 pos_T *mpos;
3003 win_T *wp;
3004 int row = mouse_row;
3005 int col = mouse_col;
3007 if (row < 0 || col < 0) /* check if it makes sense */
3008 return IN_UNKNOWN;
3010 #ifdef FEAT_WINDOWS
3011 /* find the window where the row is in */
3012 wp = mouse_find_win(&row, &col);
3013 #else
3014 wp = firstwin;
3015 #endif
3017 * winpos and height may change in win_enter()!
3019 if (row >= wp->w_height) /* In (or below) status line */
3020 return IN_STATUS_LINE;
3021 #ifdef FEAT_VERTSPLIT
3022 if (col >= wp->w_width) /* In vertical separator line */
3023 return IN_SEP_LINE;
3024 #endif
3026 if (wp != curwin)
3027 return IN_UNKNOWN;
3029 /* compute the position in the buffer line from the posn on the screen */
3030 if (mouse_comp_pos(curwin, &row, &col, &mpos->lnum))
3031 return IN_STATUS_LINE; /* past bottom */
3033 mpos->col = vcol2col(wp, mpos->lnum, col);
3035 if (mpos->col > 0)
3036 --mpos->col;
3037 return IN_BUFFER;
3041 * Convert a virtual (screen) column to a character column.
3042 * The first column is one.
3045 vcol2col(wp, lnum, vcol)
3046 win_T *wp;
3047 linenr_T lnum;
3048 int vcol;
3050 /* try to advance to the specified column */
3051 int count = 0;
3052 char_u *ptr;
3053 char_u *start;
3055 start = ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3056 while (count <= vcol && *ptr != NUL)
3058 count += win_lbr_chartabsize(wp, ptr, count, NULL);
3059 mb_ptr_adv(ptr);
3061 return (int)(ptr - start);
3063 #endif
3065 #endif /* FEAT_MOUSE */
3067 #if defined(FEAT_GUI) || defined(WIN3264) || defined(PROTO)
3069 * Called when focus changed. Used for the GUI or for systems where this can
3070 * be done in the console (Win32).
3072 void
3073 ui_focus_change(in_focus)
3074 int in_focus; /* TRUE if focus gained. */
3076 static time_t last_time = (time_t)0;
3077 int need_redraw = FALSE;
3079 /* When activated: Check if any file was modified outside of Vim.
3080 * Only do this when not done within the last two seconds (could get
3081 * several events in a row). */
3082 if (in_focus && last_time + 2 < time(NULL))
3084 need_redraw = check_timestamps(
3085 # ifdef FEAT_GUI
3086 gui.in_use
3087 # else
3088 FALSE
3089 # endif
3091 last_time = time(NULL);
3094 #ifdef FEAT_AUTOCMD
3096 * Fire the focus gained/lost autocommand.
3098 need_redraw |= apply_autocmds(in_focus ? EVENT_FOCUSGAINED
3099 : EVENT_FOCUSLOST, NULL, NULL, FALSE, curbuf);
3100 #endif
3102 if (need_redraw)
3104 /* Something was executed, make sure the cursor is put back where it
3105 * belongs. */
3106 need_wait_return = FALSE;
3108 if (State & CMDLINE)
3109 redrawcmdline();
3110 else if (State == HITRETURN || State == SETWSIZE || State == ASKMORE
3111 || State == EXTERNCMD || State == CONFIRM || exmode_active)
3112 repeat_message();
3113 else if ((State & NORMAL) || (State & INSERT))
3115 if (must_redraw != 0)
3116 update_screen(0);
3117 setcursor();
3119 cursor_on(); /* redrawing may have switched it off */
3120 out_flush();
3121 # ifdef FEAT_GUI
3122 if (gui.in_use)
3124 gui_update_cursor(FALSE, TRUE);
3125 gui_update_scrollbars(FALSE);
3127 # endif
3129 #ifdef FEAT_TITLE
3130 /* File may have been changed from 'readonly' to 'noreadonly' */
3131 if (need_maketitle)
3132 maketitle();
3133 #endif
3135 #endif
3137 #if defined(USE_IM_CONTROL) || defined(PROTO)
3139 * Save current Input Method status to specified place.
3141 void
3142 im_save_status(psave)
3143 long *psave;
3145 /* Don't save when 'imdisable' is set or "xic" is NULL, IM is always
3146 * disabled then (but might start later).
3147 * Also don't save when inside a mapping, vgetc_im_active has not been set
3148 * then.
3149 * And don't save when the keys were stuffed (e.g., for a "." command).
3150 * And don't save when the GUI is running but our window doesn't have
3151 * input focus (e.g., when a find dialog is open). */
3152 if (!p_imdisable && KeyTyped && !KeyStuffed
3153 # ifdef FEAT_XIM
3154 && xic != NULL
3155 # endif
3156 # ifdef FEAT_GUI
3157 && (!gui.in_use || gui.in_focus)
3158 # endif
3161 /* Do save when IM is on, or IM is off and saved status is on. */
3162 if (vgetc_im_active)
3163 *psave = B_IMODE_IM;
3164 else if (*psave == B_IMODE_IM)
3165 *psave = B_IMODE_NONE;
3168 #endif