1 /* vi:set ts=8 sts=4 sw=4: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 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 */ 9 10 /* 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. 17 */ 18 19 #include "vim.h" 20 21 #ifdef FEAT_CYGWIN_WIN32_CLIPBOARD 22 # define WIN32_LEAN_AND_MEAN 23 # include <windows.h> 24 # include "winclip.pro" 25 #endif 26 27 void 28 ui_write(s, len) 29 char_u *s; 30 int len; 31 { 32 #ifdef FEAT_GUI 33 if (gui.in_use && !gui.dying && !gui.starting) 34 { 35 gui_write(s, len); 36 if (p_wd) 37 gui_wait_for_chars(p_wd); 38 return; 39 } 40 #endif 41 #ifndef NO_CONSOLE 42 /* Don't output anything in silent mode ("ex -s") unless 'verbose' set */ 43 if (!(silent_mode && p_verbose == 0)) 44 { 45 #ifdef FEAT_MBYTE 46 char_u *tofree = NULL; 47 48 if (output_conv.vc_type != CONV_NONE) 49 { 50 /* Convert characters from 'encoding' to 'termencoding'. */ 51 tofree = string_convert(&output_conv, s, &len); 52 if (tofree != NULL) 53 s = tofree; 54 } 55 #endif 56 57 mch_write(s, len); 58 59 #ifdef FEAT_MBYTE 60 if (output_conv.vc_type != CONV_NONE) 61 vim_free(tofree); 62 #endif 63 } 64 #endif 65 } 66 67 #if defined(UNIX) || defined(VMS) || defined(PROTO) || defined(WIN3264) 68 /* 69 * When executing an external program, there may be some typed characters that 70 * are not consumed by it. Give them back to ui_inchar() and they are stored 71 * here for the next call. 72 */ 73 static char_u *ta_str = NULL; 74 static int ta_off; /* offset for next char to use when ta_str != NULL */ 75 static int ta_len; /* length of ta_str when it's not NULL*/ 76 77 void 78 ui_inchar_undo(s, len) 79 char_u *s; 80 int len; 81 { 82 char_u *new; 83 int newlen; 84 85 newlen = len; 86 if (ta_str != NULL) 87 newlen += ta_len - ta_off; 88 new = alloc(newlen); 89 if (new != NULL) 90 { 91 if (ta_str != NULL) 92 { 93 mch_memmove(new, ta_str + ta_off, (size_t)(ta_len - ta_off)); 94 mch_memmove(new + ta_len - ta_off, s, (size_t)len); 95 vim_free(ta_str); 96 } 97 else 98 mch_memmove(new, s, (size_t)len); 99 ta_str = new; 100 ta_len = newlen; 101 ta_off = 0; 102 } 103 } 104 #endif 105 106 /* 107 * ui_inchar(): low level input function. 108 * Get characters from the keyboard. 109 * Return the number of characters that are available. 110 * If "wtime" == 0 do not wait for characters. 111 * If "wtime" == -1 wait forever for characters. 112 * If "wtime" > 0 wait "wtime" milliseconds for a character. 113 * 114 * "tb_change_cnt" is the value of typebuf.tb_change_cnt if "buf" points into 115 * it. When typebuf.tb_change_cnt changes (e.g., when a message is received 116 * from a remote client) "buf" can no longer be used. "tb_change_cnt" is NULL 117 * otherwise. 118 */ 119 int 120 ui_inchar(buf, maxlen, wtime, tb_change_cnt) 121 char_u *buf; 122 int maxlen; 123 long wtime; /* don't use "time", MIPS cannot handle it */ 124 int tb_change_cnt; 125 { 126 int retval = 0; 127 128 #if defined(FEAT_GUI) && (defined(UNIX) || defined(VMS)) 129 /* 130 * Use the typeahead if there is any. 131 */ 132 if (ta_str != NULL) 133 { 134 if (maxlen >= ta_len - ta_off) 135 { 136 mch_memmove(buf, ta_str + ta_off, (size_t)ta_len); 137 vim_free(ta_str); 138 ta_str = NULL; 139 return ta_len; 140 } 141 mch_memmove(buf, ta_str + ta_off, (size_t)maxlen); 142 ta_off += maxlen; 143 return maxlen; 144 } 145 #endif 146 147 #ifdef FEAT_PROFILE 148 if (do_profiling == PROF_YES && wtime != 0) 149 prof_inchar_enter(); 150 #endif 151 152 #ifdef NO_CONSOLE_INPUT 153 /* Don't wait for character input when the window hasn't been opened yet. 154 * Do try reading, this works when redirecting stdin from a file. 155 * Must return something, otherwise we'll loop forever. If we run into 156 * this very often we probably got stuck, exit Vim. */ 157 if (no_console_input()) 158 { 159 static int count = 0; 160 161 # ifndef NO_CONSOLE 162 retval = mch_inchar(buf, maxlen, (wtime >= 0 && wtime < 10) 163 ? 10L : wtime, tb_change_cnt); 164 if (retval > 0 || typebuf_changed(tb_change_cnt) || wtime >= 0) 165 goto theend; 166 # endif 167 if (wtime == -1 && ++count == 1000) 168 read_error_exit(); 169 buf[0] = CAR; 170 retval = 1; 171 goto theend; 172 } 173 #endif 174 175 /* If we are going to wait for some time or block... */ 176 if (wtime == -1 || wtime > 100L) 177 { 178 /* ... allow signals to kill us. */ 179 (void)vim_handle_signal(SIGNAL_UNBLOCK); 180 181 /* ... there is no need for CTRL-C to interrupt something, don't let 182 * it set got_int when it was mapped. */ 183 if ((mapped_ctrl_c | curbuf->b_mapped_ctrl_c) & get_real_state()) 184 ctrl_c_interrupts = FALSE; 185 } 186 187 #ifdef FEAT_GUI 188 if (gui.in_use) 189 { 190 if (gui_wait_for_chars(wtime) && !typebuf_changed(tb_change_cnt)) 191 retval = read_from_input_buf(buf, (long)maxlen); 192 } 193 #endif 194 #ifndef NO_CONSOLE 195 # ifdef FEAT_GUI 196 else 197 # endif 198 { 199 retval = mch_inchar(buf, maxlen, wtime, tb_change_cnt); 200 } 201 #endif 202 203 if (wtime == -1 || wtime > 100L) 204 /* block SIGHUP et al. */ 205 (void)vim_handle_signal(SIGNAL_BLOCK); 206 207 ctrl_c_interrupts = TRUE; 208 209 #ifdef NO_CONSOLE_INPUT 210 theend: 211 #endif 212 #ifdef FEAT_PROFILE 213 if (do_profiling == PROF_YES && wtime != 0) 214 prof_inchar_exit(); 215 #endif 216 return retval; 217 } 218 219 /* 220 * return non-zero if a character is available 221 */ 222 int 223 ui_char_avail() 224 { 225 #ifdef FEAT_GUI 226 if (gui.in_use) 227 { 228 gui_mch_update(); 229 return input_available(); 230 } 231 #endif 232 #ifndef NO_CONSOLE 233 # ifdef NO_CONSOLE_INPUT 234 if (no_console_input()) 235 return 0; 236 # endif 237 return mch_char_avail(); 238 #else 239 return 0; 240 #endif 241 } 242 243 /* 244 * Delay for the given number of milliseconds. If ignoreinput is FALSE then we 245 * cancel the delay if a key is hit. 246 */ 247 void 248 ui_delay(msec, ignoreinput) 249 long msec; 250 int ignoreinput; 251 { 252 #ifdef FEAT_GUI 253 if (gui.in_use && !ignoreinput) 254 gui_wait_for_chars(msec); 255 else 256 #endif 257 mch_delay(msec, ignoreinput); 258 } 259 260 /* 261 * If the machine has job control, use it to suspend the program, 262 * otherwise fake it by starting a new shell. 263 * When running the GUI iconify the window. 264 */ 265 void 266 ui_suspend() 267 { 268 #ifdef FEAT_GUI 269 if (gui.in_use) 270 { 271 gui_mch_iconify(); 272 return; 273 } 274 #endif 275 mch_suspend(); 276 } 277 278 #if !defined(UNIX) || !defined(SIGTSTP) || defined(PROTO) || defined(__BEOS__) 279 /* 280 * When the OS can't really suspend, call this function to start a shell. 281 * This is never called in the GUI. 282 */ 283 void 284 suspend_shell() 285 { 286 if (*p_sh == NUL) 287 EMSG(_(e_shellempty)); 288 else 289 { 290 MSG_PUTS(_("new shell started\n")); 291 do_shell(NULL, 0); 292 } 293 } 294 #endif 295 296 /* 297 * Try to get the current Vim shell size. Put the result in Rows and Columns. 298 * Use the new sizes as defaults for 'columns' and 'lines'. 299 * Return OK when size could be determined, FAIL otherwise. 300 */ 301 int 302 ui_get_shellsize() 303 { 304 int retval; 305 306 #ifdef FEAT_GUI 307 if (gui.in_use) 308 retval = gui_get_shellsize(); 309 else 310 #endif 311 retval = mch_get_shellsize(); 312 313 check_shellsize(); 314 315 /* adjust the default for 'lines' and 'columns' */ 316 if (retval == OK) 317 { 318 set_number_default("lines", Rows); 319 set_number_default("columns", Columns); 320 } 321 return retval; 322 } 323 324 /* 325 * Set the size of the Vim shell according to Rows and Columns, if possible. 326 * The gui_set_shellsize() or mch_set_shellsize() function will try to set the 327 * new size. If this is not possible, it will adjust Rows and Columns. 328 */ 329 void 330 ui_set_shellsize(mustset) 331 int mustset UNUSED; /* set by the user */ 332 { 333 #ifdef FEAT_GUI 334 if (gui.in_use) 335 gui_set_shellsize(mustset, TRUE, RESIZE_BOTH); 336 else 337 #endif 338 mch_set_shellsize(); 339 } 340 341 /* 342 * Called when Rows and/or Columns changed. Adjust scroll region and mouse 343 * region. 344 */ 345 void 346 ui_new_shellsize() 347 { 348 if (full_screen && !exiting) 349 { 350 #ifdef FEAT_GUI 351 if (gui.in_use) 352 gui_new_shellsize(); 353 else 354 #endif 355 mch_new_shellsize(); 356 } 357 } 358 359 void 360 ui_breakcheck() 361 { 362 #ifdef FEAT_GUI 363 if (gui.in_use) 364 gui_mch_update(); 365 else 366 #endif 367 mch_breakcheck(); 368 } 369 370 /***************************************************************************** 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. 375 * 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. 380 */ 381 382 #if defined(FEAT_CLIPBOARD) || defined(PROTO) 383 384 static void clip_copy_selection __ARGS((VimClipboard *clip)); 385 386 /* 387 * Selection stuff using Visual mode, for cutting and pasting text to other 388 * windows. 389 */ 390 391 /* 392 * Call this to initialise the clipboard. Pass it FALSE if the clipboard code 393 * is included, but the clipboard can not be used, or TRUE if the clipboard can 394 * be used. Eg unix may call this with FALSE, then call it again with TRUE if 395 * the GUI starts. 396 */ 397 void 398 clip_init(can_use) 399 int can_use; 400 { 401 VimClipboard *cb; 402 403 cb = &clip_star; 404 for (;;) 405 { 406 cb->available = can_use; 407 cb->owned = FALSE; 408 cb->start.lnum = 0; 409 cb->start.col = 0; 410 cb->end.lnum = 0; 411 cb->end.col = 0; 412 cb->state = SELECT_CLEARED; 413 414 if (cb == &clip_plus) 415 break; 416 cb = &clip_plus; 417 } 418 } 419 420 /* 421 * Check whether the VIsual area has changed, and if so try to become the owner 422 * of the selection, and free any old converted selection we may still have 423 * lying around. If the VIsual mode has ended, make a copy of what was 424 * selected so we can still give it to others. Will probably have to make sure 425 * this is called whenever VIsual mode is ended. 426 */ 427 void 428 clip_update_selection(clip) 429 VimClipboard *clip; 430 { 431 pos_T start, end; 432 433 /* If visual mode is only due to a redo command ("."), then ignore it */ 434 if (!redo_VIsual_busy && VIsual_active && (State & NORMAL)) 435 { 436 if (lt(VIsual, curwin->w_cursor)) 437 { 438 start = VIsual; 439 end = curwin->w_cursor; 440 #ifdef FEAT_MBYTE 441 if (has_mbyte) 442 end.col += (*mb_ptr2len)(ml_get_cursor()) - 1; 443 #endif 444 } 445 else 446 { 447 start = curwin->w_cursor; 448 end = VIsual; 449 } 450 if (!equalpos(clip->start, start) 451 || !equalpos(clip->end, end) 452 || clip->vmode != VIsual_mode) 453 { 454 clip_clear_selection(clip); 455 clip->start = start; 456 clip->end = end; 457 clip->vmode = VIsual_mode; 458 clip_free_selection(clip); 459 clip_own_selection(clip); 460 clip_gen_set_selection(clip); 461 } 462 } 463 } 464 465 void 466 clip_own_selection(cbd) 467 VimClipboard *cbd; 468 { 469 /* 470 * Also want to check somehow that we are reading from the keyboard rather 471 * than a mapping etc. 472 */ 473 #ifdef FEAT_X11 474 /* Always own the selection, we might have lost it without being 475 * notified, e.g. during a ":sh" command. */ 476 if (cbd->available) 477 { 478 int was_owned = cbd->owned; 479 480 cbd->owned = (clip_gen_own_selection(cbd) == OK); 481 if (!was_owned && (cbd == &clip_star || cbd == &clip_plus)) 482 { 483 /* May have to show a different kind of highlighting for the 484 * selected area. There is no specific redraw command for this, 485 * just redraw all windows on the current buffer. */ 486 if (cbd->owned 487 && (get_real_state() == VISUAL 488 || get_real_state() == SELECTMODE) 489 && (cbd == &clip_star ? clip_isautosel_star() 490 : clip_isautosel_plus()) 491 && hl_attr(HLF_V) != hl_attr(HLF_VNC)) 492 redraw_curbuf_later(INVERTED_ALL); 493 } 494 } 495 #else 496 /* Only own the clipboard when we didn't own it yet. */ 497 if (!cbd->owned && cbd->available) 498 cbd->owned = (clip_gen_own_selection(cbd) == OK); 499 #endif 500 } 501 502 void 503 clip_lose_selection(cbd) 504 VimClipboard *cbd; 505 { 506 #ifdef FEAT_X11 507 int was_owned = cbd->owned; 508 #endif 509 int visual_selection = FALSE; 510 511 if (cbd == &clip_star || cbd == &clip_plus) 512 visual_selection = TRUE; 513 514 clip_free_selection(cbd); 515 cbd->owned = FALSE; 516 if (visual_selection) 517 clip_clear_selection(cbd); 518 clip_gen_lose_selection(cbd); 519 #ifdef FEAT_X11 520 if (visual_selection) 521 { 522 /* May have to show a different kind of highlighting for the selected 523 * area. There is no specific redraw command for this, just redraw all 524 * windows on the current buffer. */ 525 if (was_owned 526 && (get_real_state() == VISUAL 527 || get_real_state() == SELECTMODE) 528 && (cbd == &clip_star ? 529 clip_isautosel_star() : clip_isautosel_plus()) 530 && hl_attr(HLF_V) != hl_attr(HLF_VNC)) 531 { 532 update_curbuf(INVERTED_ALL); 533 setcursor(); 534 cursor_on(); 535 out_flush(); 536 # ifdef FEAT_GUI 537 if (gui.in_use) 538 gui_update_cursor(TRUE, FALSE); 539 # endif 540 } 541 } 542 #endif 543 } 544 545 static void 546 clip_copy_selection(clip) 547 VimClipboard *clip; 548 { 549 if (VIsual_active && (State & NORMAL) && clip->available) 550 { 551 clip_update_selection(clip); 552 clip_free_selection(clip); 553 clip_own_selection(clip); 554 if (clip->owned) 555 clip_get_selection(clip); 556 clip_gen_set_selection(clip); 557 } 558 } 559 560 /* 561 * Save and restore clip_unnamed before doing possibly many changes. This 562 * prevents accessing the clipboard very often which might slow down Vim 563 * considerably. 564 */ 565 static int global_change_count = 0; /* if set, inside a start_global_changes */ 566 static int clipboard_needs_update; /* clipboard needs to be updated */ 567 568 /* 569 * Save clip_unnamed and reset it. 570 */ 571 void 572 start_global_changes() 573 { 574 if (++global_change_count > 1) 575 return; 576 clip_unnamed_saved = clip_unnamed; 577 clipboard_needs_update = FALSE; 578 579 if (clip_did_set_selection) 580 { 581 clip_unnamed = FALSE; 582 clip_did_set_selection = FALSE; 583 } 584 } 585 586 /* 587 * Restore clip_unnamed and set the selection when needed. 588 */ 589 void 590 end_global_changes() 591 { 592 if (--global_change_count > 0) 593 /* recursive */ 594 return; 595 if (!clip_did_set_selection) 596 { 597 clip_did_set_selection = TRUE; 598 clip_unnamed = clip_unnamed_saved; 599 clip_unnamed_saved = FALSE; 600 if (clipboard_needs_update) 601 { 602 /* only store something in the clipboard, 603 * if we have yanked anything to it */ 604 if (clip_unnamed & CLIP_UNNAMED) 605 { 606 clip_own_selection(&clip_star); 607 clip_gen_set_selection(&clip_star); 608 } 609 if (clip_unnamed & CLIP_UNNAMED_PLUS) 610 { 611 clip_own_selection(&clip_plus); 612 clip_gen_set_selection(&clip_plus); 613 } 614 } 615 } 616 } 617 618 /* 619 * Called when Visual mode is ended: update the selection. 620 */ 621 void 622 clip_auto_select() 623 { 624 if (clip_isautosel_star()) 625 clip_copy_selection(&clip_star); 626 if (clip_isautosel_plus()) 627 clip_copy_selection(&clip_plus); 628 } 629 630 /* 631 * Return TRUE if automatic selection of Visual area is desired for the * 632 * register. 633 */ 634 int 635 clip_isautosel_star() 636 { 637 return ( 638 #ifdef FEAT_GUI 639 gui.in_use ? (vim_strchr(p_go, GO_ASEL) != NULL) : 640 #endif 641 clip_autoselect_star); 642 } 643 644 /* 645 * Return TRUE if automatic selection of Visual area is desired for the + 646 * register. 647 */ 648 int 649 clip_isautosel_plus() 650 { 651 return ( 652 #ifdef FEAT_GUI 653 gui.in_use ? (vim_strchr(p_go, GO_ASELPLUS) != NULL) : 654 #endif 655 clip_autoselect_plus); 656 } 657 658 659 /* 660 * Stuff for general mouse selection, without using Visual mode. 661 */ 662 663 static int clip_compare_pos __ARGS((int row1, int col1, int row2, int col2)); 664 static void clip_invert_area __ARGS((int, int, int, int, int how)); 665 static void clip_invert_rectangle __ARGS((int row, int col, int height, int width, int invert)); 666 static void clip_get_word_boundaries __ARGS((VimClipboard *, int, int)); 667 static int clip_get_line_end __ARGS((int)); 668 static void clip_update_modeless_selection __ARGS((VimClipboard *, int, int, 669 int, int)); 670 671 /* flags for clip_invert_area() */ 672 #define CLIP_CLEAR 1 673 #define CLIP_SET 2 674 #define CLIP_TOGGLE 3 675 676 /* 677 * Start, continue or end a modeless selection. Used when editing the 678 * command-line and in the cmdline window. 679 */ 680 void 681 clip_modeless(button, is_click, is_drag) 682 int button; 683 int is_click; 684 int is_drag; 685 { 686 int repeat; 687 688 repeat = ((clip_star.mode == SELECT_MODE_CHAR 689 || clip_star.mode == SELECT_MODE_LINE) 690 && (mod_mask & MOD_MASK_2CLICK)) 691 || (clip_star.mode == SELECT_MODE_WORD 692 && (mod_mask & MOD_MASK_3CLICK)); 693 if (is_click && button == MOUSE_RIGHT) 694 { 695 /* Right mouse button: If there was no selection, start one. 696 * Otherwise extend the existing selection. */ 697 if (clip_star.state == SELECT_CLEARED) 698 clip_start_selection(mouse_col, mouse_row, FALSE); 699 clip_process_selection(button, mouse_col, mouse_row, repeat); 700 } 701 else if (is_click) 702 clip_start_selection(mouse_col, mouse_row, repeat); 703 else if (is_drag) 704 { 705 /* Don't try extending a selection if there isn't one. Happens when 706 * button-down is in the cmdline and them moving mouse upwards. */ 707 if (clip_star.state != SELECT_CLEARED) 708 clip_process_selection(button, mouse_col, mouse_row, repeat); 709 } 710 else /* release */ 711 clip_process_selection(MOUSE_RELEASE, mouse_col, mouse_row, FALSE); 712 } 713 714 /* 715 * Compare two screen positions ala strcmp() 716 */ 717 static int 718 clip_compare_pos(row1, col1, row2, col2) 719 int row1; 720 int col1; 721 int row2; 722 int col2; 723 { 724 if (row1 > row2) return(1); 725 if (row1 < row2) return(-1); 726 if (col1 > col2) return(1); 727 if (col1 < col2) return(-1); 728 return(0); 729 } 730 731 /* 732 * Start the selection 733 */ 734 void 735 clip_start_selection(col, row, repeated_click) 736 int col; 737 int row; 738 int repeated_click; 739 { 740 VimClipboard *cb = &clip_star; 741 742 if (cb->state == SELECT_DONE) 743 clip_clear_selection(cb); 744 745 row = check_row(row); 746 col = check_col(col); 747 #ifdef FEAT_MBYTE 748 col = mb_fix_col(col, row); 749 #endif 750 751 cb->start.lnum = row; 752 cb->start.col = col; 753 cb->end = cb->start; 754 cb->origin_row = (short_u)cb->start.lnum; 755 cb->state = SELECT_IN_PROGRESS; 756 757 if (repeated_click) 758 { 759 if (++cb->mode > SELECT_MODE_LINE) 760 cb->mode = SELECT_MODE_CHAR; 761 } 762 else 763 cb->mode = SELECT_MODE_CHAR; 764 765 #ifdef FEAT_GUI 766 /* clear the cursor until the selection is made */ 767 if (gui.in_use) 768 gui_undraw_cursor(); 769 #endif 770 771 switch (cb->mode) 772 { 773 case SELECT_MODE_CHAR: 774 cb->origin_start_col = cb->start.col; 775 cb->word_end_col = clip_get_line_end((int)cb->start.lnum); 776 break; 777 778 case SELECT_MODE_WORD: 779 clip_get_word_boundaries(cb, (int)cb->start.lnum, cb->start.col); 780 cb->origin_start_col = cb->word_start_col; 781 cb->origin_end_col = cb->word_end_col; 782 783 clip_invert_area((int)cb->start.lnum, cb->word_start_col, 784 (int)cb->end.lnum, cb->word_end_col, CLIP_SET); 785 cb->start.col = cb->word_start_col; 786 cb->end.col = cb->word_end_col; 787 break; 788 789 case SELECT_MODE_LINE: 790 clip_invert_area((int)cb->start.lnum, 0, (int)cb->start.lnum, 791 (int)Columns, CLIP_SET); 792 cb->start.col = 0; 793 cb->end.col = Columns; 794 break; 795 } 796 797 cb->prev = cb->start; 798 799 #ifdef DEBUG_SELECTION 800 printf("Selection started at (%u,%u)\n", cb->start.lnum, cb->start.col); 801 #endif 802 } 803 804 /* 805 * Continue processing the selection 806 */ 807 void 808 clip_process_selection(button, col, row, repeated_click) 809 int button; 810 int col; 811 int row; 812 int_u repeated_click; 813 { 814 VimClipboard *cb = &clip_star; 815 int diff; 816 int slen = 1; /* cursor shape width */ 817 818 if (button == MOUSE_RELEASE) 819 { 820 /* Check to make sure we have something selected */ 821 if (cb->start.lnum == cb->end.lnum && cb->start.col == cb->end.col) 822 { 823 #ifdef FEAT_GUI 824 if (gui.in_use) 825 gui_update_cursor(FALSE, FALSE); 826 #endif 827 cb->state = SELECT_CLEARED; 828 return; 829 } 830 831 #ifdef DEBUG_SELECTION 832 printf("Selection ended: (%u,%u) to (%u,%u)\n", cb->start.lnum, 833 cb->start.col, cb->end.lnum, cb->end.col); 834 #endif 835 if (clip_isautosel_star() 836 || ( 837 #ifdef FEAT_GUI 838 gui.in_use ? (vim_strchr(p_go, GO_ASELML) != NULL) : 839 #endif 840 clip_autoselectml)) 841 clip_copy_modeless_selection(FALSE); 842 #ifdef FEAT_GUI 843 if (gui.in_use) 844 gui_update_cursor(FALSE, FALSE); 845 #endif 846 847 cb->state = SELECT_DONE; 848 return; 849 } 850 851 row = check_row(row); 852 col = check_col(col); 853 #ifdef FEAT_MBYTE 854 col = mb_fix_col(col, row); 855 #endif 856 857 if (col == (int)cb->prev.col && row == cb->prev.lnum && !repeated_click) 858 return; 859 860 /* 861 * When extending the selection with the right mouse button, swap the 862 * start and end if the position is before half the selection 863 */ 864 if (cb->state == SELECT_DONE && button == MOUSE_RIGHT) 865 { 866 /* 867 * If the click is before the start, or the click is inside the 868 * selection and the start is the closest side, set the origin to the 869 * end of the selection. 870 */ 871 if (clip_compare_pos(row, col, (int)cb->start.lnum, cb->start.col) < 0 872 || (clip_compare_pos(row, col, 873 (int)cb->end.lnum, cb->end.col) < 0 874 && (((cb->start.lnum == cb->end.lnum 875 && cb->end.col - col > col - cb->start.col)) 876 || ((diff = (cb->end.lnum - row) - 877 (row - cb->start.lnum)) > 0 878 || (diff == 0 && col < (int)(cb->start.col + 879 cb->end.col) / 2))))) 880 { 881 cb->origin_row = (short_u)cb->end.lnum; 882 cb->origin_start_col = cb->end.col - 1; 883 cb->origin_end_col = cb->end.col; 884 } 885 else 886 { 887 cb->origin_row = (short_u)cb->start.lnum; 888 cb->origin_start_col = cb->start.col; 889 cb->origin_end_col = cb->start.col; 890 } 891 if (cb->mode == SELECT_MODE_WORD && !repeated_click) 892 cb->mode = SELECT_MODE_CHAR; 893 } 894 895 /* set state, for when using the right mouse button */ 896 cb->state = SELECT_IN_PROGRESS; 897 898 #ifdef DEBUG_SELECTION 899 printf("Selection extending to (%d,%d)\n", row, col); 900 #endif 901 902 if (repeated_click && ++cb->mode > SELECT_MODE_LINE) 903 cb->mode = SELECT_MODE_CHAR; 904 905 switch (cb->mode) 906 { 907 case SELECT_MODE_CHAR: 908 /* If we're on a different line, find where the line ends */ 909 if (row != cb->prev.lnum) 910 cb->word_end_col = clip_get_line_end(row); 911 912 /* See if we are before or after the origin of the selection */ 913 if (clip_compare_pos(row, col, cb->origin_row, 914 cb->origin_start_col) >= 0) 915 { 916 if (col >= (int)cb->word_end_col) 917 clip_update_modeless_selection(cb, cb->origin_row, 918 cb->origin_start_col, row, (int)Columns); 919 else 920 { 921 #ifdef FEAT_MBYTE 922 if (has_mbyte && mb_lefthalve(row, col)) 923 slen = 2; 924 #endif 925 clip_update_modeless_selection(cb, cb->origin_row, 926 cb->origin_start_col, row, col + slen); 927 } 928 } 929 else 930 { 931 #ifdef FEAT_MBYTE 932 if (has_mbyte 933 && mb_lefthalve(cb->origin_row, cb->origin_start_col)) 934 slen = 2; 935 #endif 936 if (col >= (int)cb->word_end_col) 937 clip_update_modeless_selection(cb, row, cb->word_end_col, 938 cb->origin_row, cb->origin_start_col + slen); 939 else 940 clip_update_modeless_selection(cb, row, col, 941 cb->origin_row, cb->origin_start_col + slen); 942 } 943 break; 944 945 case SELECT_MODE_WORD: 946 /* If we are still within the same word, do nothing */ 947 if (row == cb->prev.lnum && col >= (int)cb->word_start_col 948 && col < (int)cb->word_end_col && !repeated_click) 949 return; 950 951 /* Get new word boundaries */ 952 clip_get_word_boundaries(cb, row, col); 953 954 /* Handle being after the origin point of selection */ 955 if (clip_compare_pos(row, col, cb->origin_row, 956 cb->origin_start_col) >= 0) 957 clip_update_modeless_selection(cb, cb->origin_row, 958 cb->origin_start_col, row, cb->word_end_col); 959 else 960 clip_update_modeless_selection(cb, row, cb->word_start_col, 961 cb->origin_row, cb->origin_end_col); 962 break; 963 964 case SELECT_MODE_LINE: 965 if (row == cb->prev.lnum && !repeated_click) 966 return; 967 968 if (clip_compare_pos(row, col, cb->origin_row, 969 cb->origin_start_col) >= 0) 970 clip_update_modeless_selection(cb, cb->origin_row, 0, row, 971 (int)Columns); 972 else 973 clip_update_modeless_selection(cb, row, 0, cb->origin_row, 974 (int)Columns); 975 break; 976 } 977 978 cb->prev.lnum = row; 979 cb->prev.col = col; 980 981 #ifdef DEBUG_SELECTION 982 printf("Selection is: (%u,%u) to (%u,%u)\n", cb->start.lnum, 983 cb->start.col, cb->end.lnum, cb->end.col); 984 #endif 985 } 986 987 # if defined(FEAT_GUI) || defined(PROTO) 988 /* 989 * Redraw part of the selection if character at "row,col" is inside of it. 990 * Only used for the GUI. 991 */ 992 void 993 clip_may_redraw_selection(row, col, len) 994 int row, col; 995 int len; 996 { 997 int start = col; 998 int end = col + len; 999 1000 if (clip_star.state != SELECT_CLEARED 1001 && row >= clip_star.start.lnum 1002 && row <= clip_star.end.lnum) 1003 { 1004 if (row == clip_star.start.lnum && start < (int)clip_star.start.col) 1005 start = clip_star.start.col; 1006 if (row == clip_star.end.lnum && end > (int)clip_star.end.col) 1007 end = clip_star.end.col; 1008 if (end > start) 1009 clip_invert_area(row, start, row, end, 0); 1010 } 1011 } 1012 # endif 1013 1014 /* 1015 * Called from outside to clear selected region from the display 1016 */ 1017 void 1018 clip_clear_selection(cbd) 1019 VimClipboard *cbd; 1020 { 1021 1022 if (cbd->state == SELECT_CLEARED) 1023 return; 1024 1025 clip_invert_area((int)cbd->start.lnum, cbd->start.col, (int)cbd->end.lnum, 1026 cbd->end.col, CLIP_CLEAR); 1027 cbd->state = SELECT_CLEARED; 1028 } 1029 1030 /* 1031 * Clear the selection if any lines from "row1" to "row2" are inside of it. 1032 */ 1033 void 1034 clip_may_clear_selection(row1, row2) 1035 int row1, row2; 1036 { 1037 if (clip_star.state == SELECT_DONE 1038 && row2 >= clip_star.start.lnum 1039 && row1 <= clip_star.end.lnum) 1040 clip_clear_selection(&clip_star); 1041 } 1042 1043 /* 1044 * Called before the screen is scrolled up or down. Adjusts the line numbers 1045 * of the selection. Call with big number when clearing the screen. 1046 */ 1047 void 1048 clip_scroll_selection(rows) 1049 int rows; /* negative for scroll down */ 1050 { 1051 int lnum; 1052 1053 if (clip_star.state == SELECT_CLEARED) 1054 return; 1055 1056 lnum = clip_star.start.lnum - rows; 1057 if (lnum <= 0) 1058 clip_star.start.lnum = 0; 1059 else if (lnum >= screen_Rows) /* scrolled off of the screen */ 1060 clip_star.state = SELECT_CLEARED; 1061 else 1062 clip_star.start.lnum = lnum; 1063 1064 lnum = clip_star.end.lnum - rows; 1065 if (lnum < 0) /* scrolled off of the screen */ 1066 clip_star.state = SELECT_CLEARED; 1067 else if (lnum >= screen_Rows) 1068 clip_star.end.lnum = screen_Rows - 1; 1069 else 1070 clip_star.end.lnum = lnum; 1071 } 1072 1073 /* 1074 * Invert a region of the display between a starting and ending row and column 1075 * Values for "how": 1076 * CLIP_CLEAR: undo inversion 1077 * CLIP_SET: set inversion 1078 * CLIP_TOGGLE: set inversion if pos1 < pos2, undo inversion otherwise. 1079 * 0: invert (GUI only). 1080 */ 1081 static void 1082 clip_invert_area(row1, col1, row2, col2, how) 1083 int row1; 1084 int col1; 1085 int row2; 1086 int col2; 1087 int how; 1088 { 1089 int invert = FALSE; 1090 1091 if (how == CLIP_SET) 1092 invert = TRUE; 1093 1094 /* Swap the from and to positions so the from is always before */ 1095 if (clip_compare_pos(row1, col1, row2, col2) > 0) 1096 { 1097 int tmp_row, tmp_col; 1098 1099 tmp_row = row1; 1100 tmp_col = col1; 1101 row1 = row2; 1102 col1 = col2; 1103 row2 = tmp_row; 1104 col2 = tmp_col; 1105 } 1106 else if (how == CLIP_TOGGLE) 1107 invert = TRUE; 1108 1109 /* If all on the same line, do it the easy way */ 1110 if (row1 == row2) 1111 { 1112 clip_invert_rectangle(row1, col1, 1, col2 - col1, invert); 1113 } 1114 else 1115 { 1116 /* Handle a piece of the first line */ 1117 if (col1 > 0) 1118 { 1119 clip_invert_rectangle(row1, col1, 1, (int)Columns - col1, invert); 1120 row1++; 1121 } 1122 1123 /* Handle a piece of the last line */ 1124 if (col2 < Columns - 1) 1125 { 1126 clip_invert_rectangle(row2, 0, 1, col2, invert); 1127 row2--; 1128 } 1129 1130 /* Handle the rectangle thats left */ 1131 if (row2 >= row1) 1132 clip_invert_rectangle(row1, 0, row2 - row1 + 1, (int)Columns, 1133 invert); 1134 } 1135 } 1136 1137 /* 1138 * Invert or un-invert a rectangle of the screen. 1139 * "invert" is true if the result is inverted. 1140 */ 1141 static void 1142 clip_invert_rectangle(row, col, height, width, invert) 1143 int row; 1144 int col; 1145 int height; 1146 int width; 1147 int invert; 1148 { 1149 #ifdef FEAT_GUI 1150 if (gui.in_use) 1151 gui_mch_invert_rectangle(row, col, height, width); 1152 else 1153 #endif 1154 screen_draw_rectangle(row, col, height, width, invert); 1155 } 1156 1157 /* 1158 * Copy the currently selected area into the '*' register so it will be 1159 * available for pasting. 1160 * When "both" is TRUE also copy to the '+' register. 1161 */ 1162 void 1163 clip_copy_modeless_selection(both) 1164 int both UNUSED; 1165 { 1166 char_u *buffer; 1167 char_u *bufp; 1168 int row; 1169 int start_col; 1170 int end_col; 1171 int line_end_col; 1172 int add_newline_flag = FALSE; 1173 int len; 1174 #ifdef FEAT_MBYTE 1175 char_u *p; 1176 #endif 1177 int row1 = clip_star.start.lnum; 1178 int col1 = clip_star.start.col; 1179 int row2 = clip_star.end.lnum; 1180 int col2 = clip_star.end.col; 1181 1182 /* Can't use ScreenLines unless initialized */ 1183 if (ScreenLines == NULL) 1184 return; 1185 1186 /* 1187 * Make sure row1 <= row2, and if row1 == row2 that col1 <= col2. 1188 */ 1189 if (row1 > row2) 1190 { 1191 row = row1; row1 = row2; row2 = row; 1192 row = col1; col1 = col2; col2 = row; 1193 } 1194 else if (row1 == row2 && col1 > col2) 1195 { 1196 row = col1; col1 = col2; col2 = row; 1197 } 1198 #ifdef FEAT_MBYTE 1199 /* correct starting point for being on right halve of double-wide char */ 1200 p = ScreenLines + LineOffset[row1]; 1201 if (enc_dbcs != 0) 1202 col1 -= (*mb_head_off)(p, p + col1); 1203 else if (enc_utf8 && p[col1] == 0) 1204 --col1; 1205 #endif 1206 1207 /* Create a temporary buffer for storing the text */ 1208 len = (row2 - row1 + 1) * Columns + 1; 1209 #ifdef FEAT_MBYTE 1210 if (enc_dbcs != 0) 1211 len *= 2; /* max. 2 bytes per display cell */ 1212 else if (enc_utf8) 1213 len *= MB_MAXBYTES; 1214 #endif 1215 buffer = lalloc((long_u)len, TRUE); 1216 if (buffer == NULL) /* out of memory */ 1217 return; 1218 1219 /* Process each row in the selection */ 1220 for (bufp = buffer, row = row1; row <= row2; row++) 1221 { 1222 if (row == row1) 1223 start_col = col1; 1224 else 1225 start_col = 0; 1226 1227 if (row == row2) 1228 end_col = col2; 1229 else 1230 end_col = Columns; 1231 1232 line_end_col = clip_get_line_end(row); 1233 1234 /* See if we need to nuke some trailing whitespace */ 1235 if (end_col >= Columns && (row < row2 || end_col > line_end_col)) 1236 { 1237 /* Get rid of trailing whitespace */ 1238 end_col = line_end_col; 1239 if (end_col < start_col) 1240 end_col = start_col; 1241 1242 /* If the last line extended to the end, add an extra newline */ 1243 if (row == row2) 1244 add_newline_flag = TRUE; 1245 } 1246 1247 /* If after the first row, we need to always add a newline */ 1248 if (row > row1 && !LineWraps[row - 1]) 1249 *bufp++ = NL; 1250 1251 if (row < screen_Rows && end_col <= screen_Columns) 1252 { 1253 #ifdef FEAT_MBYTE 1254 if (enc_dbcs != 0) 1255 { 1256 int i; 1257 1258 p = ScreenLines + LineOffset[row]; 1259 for (i = start_col; i < end_col; ++i) 1260 if (enc_dbcs == DBCS_JPNU && p[i] == 0x8e) 1261 { 1262 /* single-width double-byte char */ 1263 *bufp++ = 0x8e; 1264 *bufp++ = ScreenLines2[LineOffset[row] + i]; 1265 } 1266 else 1267 { 1268 *bufp++ = p[i]; 1269 if (MB_BYTE2LEN(p[i]) == 2) 1270 *bufp++ = p[++i]; 1271 } 1272 } 1273 else if (enc_utf8) 1274 { 1275 int off; 1276 int i; 1277 int ci; 1278 1279 off = LineOffset[row]; 1280 for (i = start_col; i < end_col; ++i) 1281 { 1282 /* The base character is either in ScreenLinesUC[] or 1283 * ScreenLines[]. */ 1284 if (ScreenLinesUC[off + i] == 0) 1285 *bufp++ = ScreenLines[off + i]; 1286 else 1287 { 1288 bufp += utf_char2bytes(ScreenLinesUC[off + i], bufp); 1289 for (ci = 0; ci < Screen_mco; ++ci) 1290 { 1291 /* Add a composing character. */ 1292 if (ScreenLinesC[ci][off + i] == 0) 1293 break; 1294 bufp += utf_char2bytes(ScreenLinesC[ci][off + i], 1295 bufp); 1296 } 1297 } 1298 /* Skip right halve of double-wide character. */ 1299 if (ScreenLines[off + i + 1] == 0) 1300 ++i; 1301 } 1302 } 1303 else 1304 #endif 1305 { 1306 STRNCPY(bufp, ScreenLines + LineOffset[row] + start_col, 1307 end_col - start_col); 1308 bufp += end_col - start_col; 1309 } 1310 } 1311 } 1312 1313 /* Add a newline at the end if the selection ended there */ 1314 if (add_newline_flag) 1315 *bufp++ = NL; 1316 1317 /* First cleanup any old selection and become the owner. */ 1318 clip_free_selection(&clip_star); 1319 clip_own_selection(&clip_star); 1320 1321 /* Yank the text into the '*' register. */ 1322 clip_yank_selection(MCHAR, buffer, (long)(bufp - buffer), &clip_star); 1323 1324 /* Make the register contents available to the outside world. */ 1325 clip_gen_set_selection(&clip_star); 1326 1327 #ifdef FEAT_X11 1328 if (both) 1329 { 1330 /* Do the same for the '+' register. */ 1331 clip_free_selection(&clip_plus); 1332 clip_own_selection(&clip_plus); 1333 clip_yank_selection(MCHAR, buffer, (long)(bufp - buffer), &clip_plus); 1334 clip_gen_set_selection(&clip_plus); 1335 } 1336 #endif 1337 vim_free(buffer); 1338 } 1339 1340 /* 1341 * Find the starting and ending positions of the word at the given row and 1342 * column. Only white-separated words are recognized here. 1343 */ 1344 #define CHAR_CLASS(c) (c <= ' ' ? ' ' : vim_iswordc(c)) 1345 1346 static void 1347 clip_get_word_boundaries(cb, row, col) 1348 VimClipboard *cb; 1349 int row; 1350 int col; 1351 { 1352 int start_class; 1353 int temp_col; 1354 char_u *p; 1355 #ifdef FEAT_MBYTE 1356 int mboff; 1357 #endif 1358 1359 if (row >= screen_Rows || col >= screen_Columns || ScreenLines == NULL) 1360 return; 1361 1362 p = ScreenLines + LineOffset[row]; 1363 #ifdef FEAT_MBYTE 1364 /* Correct for starting in the right halve of a double-wide char */ 1365 if (enc_dbcs != 0) 1366 col -= dbcs_screen_head_off(p, p + col); 1367 else if (enc_utf8 && p[col] == 0) 1368 --col; 1369 #endif 1370 start_class = CHAR_CLASS(p[col]); 1371 1372 temp_col = col; 1373 for ( ; temp_col > 0; temp_col--) 1374 #ifdef FEAT_MBYTE 1375 if (enc_dbcs != 0 1376 && (mboff = dbcs_screen_head_off(p, p + temp_col - 1)) > 0) 1377 temp_col -= mboff; 1378 else 1379 #endif 1380 if (CHAR_CLASS(p[temp_col - 1]) != start_class 1381 #ifdef FEAT_MBYTE 1382 && !(enc_utf8 && p[temp_col - 1] == 0) 1383 #endif 1384 ) 1385 break; 1386 cb->word_start_col = temp_col; 1387 1388 temp_col = col; 1389 for ( ; temp_col < screen_Columns; temp_col++) 1390 #ifdef FEAT_MBYTE 1391 if (enc_dbcs != 0 && dbcs_ptr2cells(p + temp_col) == 2) 1392 ++temp_col; 1393 else 1394 #endif 1395 if (CHAR_CLASS(p[temp_col]) != start_class 1396 #ifdef FEAT_MBYTE 1397 && !(enc_utf8 && p[temp_col] == 0) 1398 #endif 1399 ) 1400 break; 1401 cb->word_end_col = temp_col; 1402 } 1403 1404 /* 1405 * Find the column position for the last non-whitespace character on the given 1406 * line. 1407 */ 1408 static int 1409 clip_get_line_end(row) 1410 int row; 1411 { 1412 int i; 1413 1414 if (row >= screen_Rows || ScreenLines == NULL) 1415 return 0; 1416 for (i = screen_Columns; i > 0; i--) 1417 if (ScreenLines[LineOffset[row] + i - 1] != ' ') 1418 break; 1419 return i; 1420 } 1421 1422 /* 1423 * Update the currently selected region by adding and/or subtracting from the 1424 * beginning or end and inverting the changed area(s). 1425 */ 1426 static void 1427 clip_update_modeless_selection(cb, row1, col1, row2, col2) 1428 VimClipboard *cb; 1429 int row1; 1430 int col1; 1431 int row2; 1432 int col2; 1433 { 1434 /* See if we changed at the beginning of the selection */ 1435 if (row1 != cb->start.lnum || col1 != (int)cb->start.col) 1436 { 1437 clip_invert_area(row1, col1, (int)cb->start.lnum, cb->start.col, 1438 CLIP_TOGGLE); 1439 cb->start.lnum = row1; 1440 cb->start.col = col1; 1441 } 1442 1443 /* See if we changed at the end of the selection */ 1444 if (row2 != cb->end.lnum || col2 != (int)cb->end.col) 1445 { 1446 clip_invert_area((int)cb->end.lnum, cb->end.col, row2, col2, 1447 CLIP_TOGGLE); 1448 cb->end.lnum = row2; 1449 cb->end.col = col2; 1450 } 1451 } 1452 1453 int 1454 clip_gen_own_selection(cbd) 1455 VimClipboard *cbd; 1456 { 1457 #ifdef FEAT_XCLIPBOARD 1458 # ifdef FEAT_GUI 1459 if (gui.in_use) 1460 return clip_mch_own_selection(cbd); 1461 else 1462 # endif 1463 return clip_xterm_own_selection(cbd); 1464 #else 1465 return clip_mch_own_selection(cbd); 1466 #endif 1467 } 1468 1469 void 1470 clip_gen_lose_selection(cbd) 1471 VimClipboard *cbd; 1472 { 1473 #ifdef FEAT_XCLIPBOARD 1474 # ifdef FEAT_GUI 1475 if (gui.in_use) 1476 clip_mch_lose_selection(cbd); 1477 else 1478 # endif 1479 clip_xterm_lose_selection(cbd); 1480 #else 1481 clip_mch_lose_selection(cbd); 1482 #endif 1483 } 1484 1485 void 1486 clip_gen_set_selection(cbd) 1487 VimClipboard *cbd; 1488 { 1489 if (!clip_did_set_selection) 1490 { 1491 /* Updating postponed, so that accessing the system clipboard won't 1492 * hang Vim when accessing it many times (e.g. on a :g comand). */ 1493 if ((cbd == &clip_plus && (clip_unnamed_saved & CLIP_UNNAMED_PLUS)) 1494 || (cbd == &clip_star && (clip_unnamed_saved & CLIP_UNNAMED))) 1495 { 1496 clipboard_needs_update = TRUE; 1497 return; 1498 } 1499 } 1500 #ifdef FEAT_XCLIPBOARD 1501 # ifdef FEAT_GUI 1502 if (gui.in_use) 1503 clip_mch_set_selection(cbd); 1504 else 1505 # endif 1506 clip_xterm_set_selection(cbd); 1507 #else 1508 clip_mch_set_selection(cbd); 1509 #endif 1510 } 1511 1512 void 1513 clip_gen_request_selection(cbd) 1514 VimClipboard *cbd; 1515 { 1516 #ifdef FEAT_XCLIPBOARD 1517 # ifdef FEAT_GUI 1518 if (gui.in_use) 1519 clip_mch_request_selection(cbd); 1520 else 1521 # endif 1522 clip_xterm_request_selection(cbd); 1523 #else 1524 clip_mch_request_selection(cbd); 1525 #endif 1526 } 1527 1528 int 1529 clip_gen_owner_exists(cbd) 1530 VimClipboard *cbd UNUSED; 1531 { 1532 #ifdef FEAT_XCLIPBOARD 1533 # ifdef FEAT_GUI_GTK 1534 if (gui.in_use) 1535 return clip_gtk_owner_exists(cbd); 1536 else 1537 # endif 1538 return clip_x11_owner_exists(cbd); 1539 #else 1540 return TRUE; 1541 #endif 1542 } 1543 1544 #endif /* FEAT_CLIPBOARD */ 1545 1546 /***************************************************************************** 1547 * Functions that handle the input buffer. 1548 * This is used for any GUI version, and the unix terminal version. 1549 * 1550 * For Unix, the input characters are buffered to be able to check for a 1551 * CTRL-C. This should be done with signals, but I don't know how to do that 1552 * in a portable way for a tty in RAW mode. 1553 * 1554 * For the client-server code in the console the received keys are put in the 1555 * input buffer. 1556 */ 1557 1558 #if defined(USE_INPUT_BUF) || defined(PROTO) 1559 1560 /* 1561 * Internal typeahead buffer. Includes extra space for long key code 1562 * descriptions which would otherwise overflow. The buffer is considered full 1563 * when only this extra space (or part of it) remains. 1564 */ 1565 #if defined(FEAT_SUN_WORKSHOP) || defined(FEAT_NETBEANS_INTG) \ 1566 || defined(FEAT_CLIENTSERVER) 1567 /* 1568 * Sun WorkShop and NetBeans stuff debugger commands into the input buffer. 1569 * This requires a larger buffer... 1570 * (Madsen) Go with this for remote input as well ... 1571 */ 1572 # define INBUFLEN 4096 1573 #else 1574 # define INBUFLEN 250 1575 #endif 1576 1577 static char_u inbuf[INBUFLEN + MAX_KEY_CODE_LEN]; 1578 static int inbufcount = 0; /* number of chars in inbuf[] */ 1579 1580 /* 1581 * vim_is_input_buf_full(), vim_is_input_buf_empty(), add_to_input_buf(), and 1582 * trash_input_buf() are functions for manipulating the input buffer. These 1583 * are used by the gui_* calls when a GUI is used to handle keyboard input. 1584 */ 1585 1586 int 1587 vim_is_input_buf_full() 1588 { 1589 return (inbufcount >= INBUFLEN); 1590 } 1591 1592 int 1593 vim_is_input_buf_empty() 1594 { 1595 return (inbufcount == 0); 1596 } 1597 1598 #if defined(FEAT_OLE) || defined(PROTO) 1599 int 1600 vim_free_in_input_buf() 1601 { 1602 return (INBUFLEN - inbufcount); 1603 } 1604 #endif 1605 1606 #if defined(FEAT_GUI_GTK) || defined(PROTO) 1607 int 1608 vim_used_in_input_buf() 1609 { 1610 return inbufcount; 1611 } 1612 #endif 1613 1614 #if defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) || defined(PROTO) 1615 /* 1616 * Return the current contents of the input buffer and make it empty. 1617 * The returned pointer must be passed to set_input_buf() later. 1618 */ 1619 char_u * 1620 get_input_buf() 1621 { 1622 garray_T *gap; 1623 1624 /* We use a growarray to store the data pointer and the length. */ 1625 gap = (garray_T *)alloc((unsigned)sizeof(garray_T)); 1626 if (gap != NULL) 1627 { 1628 /* Add one to avoid a zero size. */ 1629 gap->ga_data = alloc((unsigned)inbufcount + 1); 1630 if (gap->ga_data != NULL) 1631 mch_memmove(gap->ga_data, inbuf, (size_t)inbufcount); 1632 gap->ga_len = inbufcount; 1633 } 1634 trash_input_buf(); 1635 return (char_u *)gap; 1636 } 1637 1638 /* 1639 * Restore the input buffer with a pointer returned from get_input_buf(). 1640 * The allocated memory is freed, this only works once! 1641 */ 1642 void 1643 set_input_buf(p) 1644 char_u *p; 1645 { 1646 garray_T *gap = (garray_T *)p; 1647 1648 if (gap != NULL) 1649 { 1650 if (gap->ga_data != NULL) 1651 { 1652 mch_memmove(inbuf, gap->ga_data, gap->ga_len); 1653 inbufcount = gap->ga_len; 1654 vim_free(gap->ga_data); 1655 } 1656 vim_free(gap); 1657 } 1658 } 1659 #endif 1660 1661 #if defined(FEAT_GUI) \ 1662 || defined(FEAT_MOUSE_GPM) || defined(FEAT_SYSMOUSE) \ 1663 || defined(FEAT_XCLIPBOARD) || defined(VMS) \ 1664 || defined(FEAT_SNIFF) || defined(FEAT_CLIENTSERVER) \ 1665 || defined(PROTO) 1666 /* 1667 * Add the given bytes to the input buffer 1668 * Special keys start with CSI. A real CSI must have been translated to 1669 * CSI KS_EXTRA KE_CSI. K_SPECIAL doesn't require translation. 1670 */ 1671 void 1672 add_to_input_buf(s, len) 1673 char_u *s; 1674 int len; 1675 { 1676 if (inbufcount + len > INBUFLEN + MAX_KEY_CODE_LEN) 1677 return; /* Shouldn't ever happen! */ 1678 1679 #ifdef FEAT_HANGULIN 1680 if ((State & (INSERT|CMDLINE)) && hangul_input_state_get()) 1681 if ((len = hangul_input_process(s, len)) == 0) 1682 return; 1683 #endif 1684 1685 while (len--) 1686 inbuf[inbufcount++] = *s++; 1687 } 1688 #endif 1689 1690 #if ((defined(FEAT_XIM) || defined(FEAT_DND)) && defined(FEAT_GUI_GTK)) \ 1691 || defined(FEAT_GUI_MSWIN) \ 1692 || defined(FEAT_GUI_MAC) \ 1693 || (defined(FEAT_MBYTE) && defined(FEAT_MBYTE_IME)) \ 1694 || (defined(FEAT_GUI) && (!defined(USE_ON_FLY_SCROLL) \ 1695 || defined(FEAT_MENU))) \ 1696 || defined(PROTO) 1697 /* 1698 * Add "str[len]" to the input buffer while escaping CSI bytes. 1699 */ 1700 void 1701 add_to_input_buf_csi(char_u *str, int len) 1702 { 1703 int i; 1704 char_u buf[2]; 1705 1706 for (i = 0; i < len; ++i) 1707 { 1708 add_to_input_buf(str + i, 1); 1709 if (str[i] == CSI) 1710 { 1711 /* Turn CSI into K_CSI. */ 1712 buf[0] = KS_EXTRA; 1713 buf[1] = (int)KE_CSI; 1714 add_to_input_buf(buf, 2); 1715 } 1716 } 1717 } 1718 #endif 1719 1720 #if defined(FEAT_HANGULIN) || defined(PROTO) 1721 void 1722 push_raw_key(s, len) 1723 char_u *s; 1724 int len; 1725 { 1726 while (len--) 1727 inbuf[inbufcount++] = *s++; 1728 } 1729 #endif 1730 1731 #if defined(FEAT_GUI) || defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) \ 1732 || defined(PROTO) 1733 /* Remove everything from the input buffer. Called when ^C is found */ 1734 void 1735 trash_input_buf() 1736 { 1737 inbufcount = 0; 1738 } 1739 #endif 1740 1741 /* 1742 * Read as much data from the input buffer as possible up to maxlen, and store 1743 * it in buf. 1744 * Note: this function used to be Read() in unix.c 1745 */ 1746 int 1747 read_from_input_buf(buf, maxlen) 1748 char_u *buf; 1749 long maxlen; 1750 { 1751 if (inbufcount == 0) /* if the buffer is empty, fill it */ 1752 fill_input_buf(TRUE); 1753 if (maxlen > inbufcount) 1754 maxlen = inbufcount; 1755 mch_memmove(buf, inbuf, (size_t)maxlen); 1756 inbufcount -= maxlen; 1757 if (inbufcount) 1758 mch_memmove(inbuf, inbuf + maxlen, (size_t)inbufcount); 1759 return (int)maxlen; 1760 } 1761 1762 void 1763 fill_input_buf(exit_on_error) 1764 int exit_on_error UNUSED; 1765 { 1766 #if defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X_UNIX) 1767 int len; 1768 int try; 1769 static int did_read_something = FALSE; 1770 # ifdef FEAT_MBYTE 1771 static char_u *rest = NULL; /* unconverted rest of previous read */ 1772 static int restlen = 0; 1773 int unconverted; 1774 # endif 1775 #endif 1776 1777 #ifdef FEAT_GUI 1778 if (gui.in_use 1779 # ifdef NO_CONSOLE_INPUT 1780 /* Don't use the GUI input when the window hasn't been opened yet. 1781 * We get here from ui_inchar() when we should try reading from stdin. */ 1782 && !no_console_input() 1783 # endif 1784 ) 1785 { 1786 gui_mch_update(); 1787 return; 1788 } 1789 #endif 1790 #if defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X_UNIX) 1791 if (vim_is_input_buf_full()) 1792 return; 1793 /* 1794 * Fill_input_buf() is only called when we really need a character. 1795 * If we can't get any, but there is some in the buffer, just return. 1796 * If we can't get any, and there isn't any in the buffer, we give up and 1797 * exit Vim. 1798 */ 1799 # ifdef __BEOS__ 1800 /* 1801 * On the BeBox version (for now), all input is secretly performed within 1802 * beos_select() which is called from RealWaitForChar(). 1803 */ 1804 while (!vim_is_input_buf_full() && RealWaitForChar(read_cmd_fd, 0, NULL)) 1805 ; 1806 len = inbufcount; 1807 inbufcount = 0; 1808 # else 1809 1810 # ifdef FEAT_SNIFF 1811 if (sniff_request_waiting) 1812 { 1813 add_to_input_buf((char_u *)"\233sniff",6); /* results in K_SNIFF */ 1814 sniff_request_waiting = 0; 1815 want_sniff_request = 0; 1816 return; 1817 } 1818 # endif 1819 1820 # ifdef FEAT_MBYTE 1821 if (rest != NULL) 1822 { 1823 /* Use remainder of previous call, starts with an invalid character 1824 * that may become valid when reading more. */ 1825 if (restlen > INBUFLEN - inbufcount) 1826 unconverted = INBUFLEN - inbufcount; 1827 else 1828 unconverted = restlen; 1829 mch_memmove(inbuf + inbufcount, rest, unconverted); 1830 if (unconverted == restlen) 1831 { 1832 vim_free(rest); 1833 rest = NULL; 1834 } 1835 else 1836 { 1837 restlen -= unconverted; 1838 mch_memmove(rest, rest + unconverted, restlen); 1839 } 1840 inbufcount += unconverted; 1841 } 1842 else 1843 unconverted = 0; 1844 #endif 1845 1846 len = 0; /* to avoid gcc warning */ 1847 for (try = 0; try < 100; ++try) 1848 { 1849 # ifdef VMS 1850 len = vms_read( 1851 # else 1852 len = read(read_cmd_fd, 1853 # endif 1854 (char *)inbuf + inbufcount, (size_t)((INBUFLEN - inbufcount) 1855 # ifdef FEAT_MBYTE 1856 / input_conv.vc_factor 1857 # endif 1858 )); 1859 # if 0 1860 ) /* avoid syntax highlight error */ 1861 # endif 1862 1863 if (len > 0 || got_int) 1864 break; 1865 /* 1866 * If reading stdin results in an error, continue reading stderr. 1867 * This helps when using "foo | xargs vim". 1868 */ 1869 if (!did_read_something && !isatty(read_cmd_fd) && read_cmd_fd == 0) 1870 { 1871 int m = cur_tmode; 1872 1873 /* We probably set the wrong file descriptor to raw mode. Switch 1874 * back to cooked mode, use another descriptor and set the mode to 1875 * what it was. */ 1876 settmode(TMODE_COOK); 1877 #ifdef HAVE_DUP 1878 /* Use stderr for stdin, also works for shell commands. */ 1879 close(0); 1880 ignored = dup(2); 1881 #else 1882 read_cmd_fd = 2; /* read from stderr instead of stdin */ 1883 #endif 1884 settmode(m); 1885 } 1886 if (!exit_on_error) 1887 return; 1888 } 1889 # endif 1890 if (len <= 0 && !got_int) 1891 read_error_exit(); 1892 if (len > 0) 1893 did_read_something = TRUE; 1894 if (got_int) 1895 { 1896 /* Interrupted, pretend a CTRL-C was typed. */ 1897 inbuf[0] = 3; 1898 inbufcount = 1; 1899 } 1900 else 1901 { 1902 # ifdef FEAT_MBYTE 1903 /* 1904 * May perform conversion on the input characters. 1905 * Include the unconverted rest of the previous call. 1906 * If there is an incomplete char at the end it is kept for the next 1907 * time, reading more bytes should make conversion possible. 1908 * Don't do this in the unlikely event that the input buffer is too 1909 * small ("rest" still contains more bytes). 1910 */ 1911 if (input_conv.vc_type != CONV_NONE) 1912 { 1913 inbufcount -= unconverted; 1914 len = convert_input_safe(inbuf + inbufcount, 1915 len + unconverted, INBUFLEN - inbufcount, 1916 rest == NULL ? &rest : NULL, &restlen); 1917 } 1918 # endif 1919 while (len-- > 0) 1920 { 1921 /* 1922 * if a CTRL-C was typed, remove it from the buffer and set got_int 1923 */ 1924 if (inbuf[inbufcount] == 3 && ctrl_c_interrupts) 1925 { 1926 /* remove everything typed before the CTRL-C */ 1927 mch_memmove(inbuf, inbuf + inbufcount, (size_t)(len + 1)); 1928 inbufcount = 0; 1929 got_int = TRUE; 1930 } 1931 ++inbufcount; 1932 } 1933 } 1934 #endif /* UNIX or OS2 or VMS*/ 1935 } 1936 #endif /* defined(UNIX) || defined(FEAT_GUI) || defined(OS2) || defined(VMS) */ 1937 1938 /* 1939 * Exit because of an input read error. 1940 */ 1941 void 1942 read_error_exit() 1943 { 1944 if (silent_mode) /* Normal way to exit for "ex -s" */ 1945 getout(0); 1946 STRCPY(IObuff, _("Vim: Error reading input, exiting...\n")); 1947 preserve_exit(); 1948 } 1949 1950 #if defined(CURSOR_SHAPE) || defined(PROTO) 1951 /* 1952 * May update the shape of the cursor. 1953 */ 1954 void 1955 ui_cursor_shape() 1956 { 1957 # ifdef FEAT_GUI 1958 if (gui.in_use) 1959 gui_update_cursor_later(); 1960 else 1961 # endif 1962 term_cursor_shape(); 1963 1964 # ifdef MCH_CURSOR_SHAPE 1965 mch_update_cursor(); 1966 # endif 1967 1968 # ifdef FEAT_CONCEAL 1969 conceal_check_cursur_line(); 1970 # endif 1971 } 1972 #endif 1973 1974 #if defined(FEAT_CLIPBOARD) || defined(FEAT_GUI) || defined(FEAT_RIGHTLEFT) \ 1975 || defined(FEAT_MBYTE) || defined(PROTO) 1976 /* 1977 * Check bounds for column number 1978 */ 1979 int 1980 check_col(col) 1981 int col; 1982 { 1983 if (col < 0) 1984 return 0; 1985 if (col >= (int)screen_Columns) 1986 return (int)screen_Columns - 1; 1987 return col; 1988 } 1989 1990 /* 1991 * Check bounds for row number 1992 */ 1993 int 1994 check_row(row) 1995 int row; 1996 { 1997 if (row < 0) 1998 return 0; 1999 if (row >= (int)screen_Rows) 2000 return (int)screen_Rows - 1; 2001 return row; 2002 } 2003 #endif 2004 2005 /* 2006 * Stuff for the X clipboard. Shared between VMS and Unix. 2007 */ 2008 2009 #if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) || defined(PROTO) 2010 # include <X11/Xatom.h> 2011 # include <X11/Intrinsic.h> 2012 2013 /* 2014 * Open the application context (if it hasn't been opened yet). 2015 * Used for Motif and Athena GUI and the xterm clipboard. 2016 */ 2017 void 2018 open_app_context() 2019 { 2020 if (app_context == NULL) 2021 { 2022 XtToolkitInitialize(); 2023 app_context = XtCreateApplicationContext(); 2024 } 2025 } 2026 2027 static Atom vim_atom; /* Vim's own special selection format */ 2028 #ifdef FEAT_MBYTE 2029 static Atom vimenc_atom; /* Vim's extended selection format */ 2030 static Atom utf8_atom; 2031 #endif 2032 static Atom compound_text_atom; 2033 static Atom text_atom; 2034 static Atom targets_atom; 2035 static Atom timestamp_atom; /* Used to get a timestamp */ 2036 2037 void 2038 x11_setup_atoms(dpy) 2039 Display *dpy; 2040 { 2041 vim_atom = XInternAtom(dpy, VIM_ATOM_NAME, False); 2042 #ifdef FEAT_MBYTE 2043 vimenc_atom = XInternAtom(dpy, VIMENC_ATOM_NAME,False); 2044 utf8_atom = XInternAtom(dpy, "UTF8_STRING", False); 2045 #endif 2046 compound_text_atom = XInternAtom(dpy, "COMPOUND_TEXT", False); 2047 text_atom = XInternAtom(dpy, "TEXT", False); 2048 targets_atom = XInternAtom(dpy, "TARGETS", False); 2049 clip_star.sel_atom = XA_PRIMARY; 2050 clip_plus.sel_atom = XInternAtom(dpy, "CLIPBOARD", False); 2051 timestamp_atom = XInternAtom(dpy, "TIMESTAMP", False); 2052 } 2053 2054 /* 2055 * X Selection stuff, for cutting and pasting text to other windows. 2056 */ 2057 2058 static Boolean clip_x11_convert_selection_cb __ARGS((Widget, Atom *, Atom *, Atom *, XtPointer *, long_u *, int *)); 2059 static void clip_x11_lose_ownership_cb __ARGS((Widget, Atom *)); 2060 static void clip_x11_timestamp_cb __ARGS((Widget w, XtPointer n, XEvent *event, Boolean *cont)); 2061 static void clip_x11_request_selection_cb __ARGS((Widget, XtPointer, Atom *, Atom *, XtPointer, long_u *, int *)); 2062 2063 /* 2064 * Property callback to get a timestamp for XtOwnSelection. 2065 */ 2066 static void 2067 clip_x11_timestamp_cb(w, n, event, cont) 2068 Widget w; 2069 XtPointer n UNUSED; 2070 XEvent *event; 2071 Boolean *cont UNUSED; 2072 { 2073 Atom actual_type; 2074 int format; 2075 unsigned long nitems, bytes_after; 2076 unsigned char *prop=NULL; 2077 XPropertyEvent *xproperty=&event->xproperty; 2078 2079 /* Must be a property notify, state can't be Delete (True), has to be 2080 * one of the supported selection types. */ 2081 if (event->type != PropertyNotify || xproperty->state 2082 || (xproperty->atom != clip_star.sel_atom 2083 && xproperty->atom != clip_plus.sel_atom)) 2084 return; 2085 2086 if (XGetWindowProperty(xproperty->display, xproperty->window, 2087 xproperty->atom, 0, 0, False, timestamp_atom, &actual_type, &format, 2088 &nitems, &bytes_after, &prop)) 2089 return; 2090 2091 if (prop) 2092 XFree(prop); 2093 2094 /* Make sure the property type is "TIMESTAMP" and it's 32 bits. */ 2095 if (actual_type != timestamp_atom || format != 32) 2096 return; 2097 2098 /* Get the selection, using the event timestamp. */ 2099 if (XtOwnSelection(w, xproperty->atom, xproperty->time, 2100 clip_x11_convert_selection_cb, clip_x11_lose_ownership_cb, 2101 NULL) == OK) 2102 { 2103 /* Set the "owned" flag now, there may have been a call to 2104 * lose_ownership_cb in between. */ 2105 if (xproperty->atom == clip_plus.sel_atom) 2106 clip_plus.owned = TRUE; 2107 else 2108 clip_star.owned = TRUE; 2109 } 2110 } 2111 2112 void 2113 x11_setup_selection(w) 2114 Widget w; 2115 { 2116 XtAddEventHandler(w, PropertyChangeMask, False, 2117 /*(XtEventHandler)*/clip_x11_timestamp_cb, (XtPointer)NULL); 2118 } 2119 2120 static void 2121 clip_x11_request_selection_cb(w, success, sel_atom, type, value, length, 2122 format) 2123 Widget w UNUSED; 2124 XtPointer success; 2125 Atom *sel_atom; 2126 Atom *type; 2127 XtPointer value; 2128 long_u *length; 2129 int *format; 2130 { 2131 int motion_type = MAUTO; 2132 long_u len; 2133 char_u *p; 2134 char **text_list = NULL; 2135 VimClipboard *cbd; 2136 #ifdef FEAT_MBYTE 2137 char_u *tmpbuf = NULL; 2138 #endif 2139 2140 if (*sel_atom == clip_plus.sel_atom) 2141 cbd = &clip_plus; 2142 else 2143 cbd = &clip_star; 2144 2145 if (value == NULL || *length == 0) 2146 { 2147 clip_free_selection(cbd); /* nothing received, clear register */ 2148 *(int *)success = FALSE; 2149 return; 2150 } 2151 p = (char_u *)value; 2152 len = *length; 2153 if (*type == vim_atom) 2154 { 2155 motion_type = *p++; 2156 len--; 2157 } 2158 2159 #ifdef FEAT_MBYTE 2160 else if (*type == vimenc_atom) 2161 { 2162 char_u *enc; 2163 vimconv_T conv; 2164 int convlen; 2165 2166 motion_type = *p++; 2167 --len; 2168 2169 enc = p; 2170 p += STRLEN(p) + 1; 2171 len -= p - enc; 2172 2173 /* If the encoding of the text is different from 'encoding', attempt 2174 * converting it. */ 2175 conv.vc_type = CONV_NONE; 2176 convert_setup(&conv, enc, p_enc); 2177 if (conv.vc_type != CONV_NONE) 2178 { 2179 convlen = len; /* Need to use an int here. */ 2180 tmpbuf = string_convert(&conv, p, &convlen); 2181 len = convlen; 2182 if (tmpbuf != NULL) 2183 p = tmpbuf; 2184 convert_setup(&conv, NULL, NULL); 2185 } 2186 } 2187 #endif 2188 2189 else if (*type == compound_text_atom 2190 #ifdef FEAT_MBYTE 2191 || *type == utf8_atom 2192 #endif 2193 || ( 2194 #ifdef FEAT_MBYTE 2195 enc_dbcs != 0 && 2196 #endif 2197 *type == text_atom)) 2198 { 2199 XTextProperty text_prop; 2200 int n_text = 0; 2201 int status; 2202 2203 text_prop.value = (unsigned char *)value; 2204 text_prop.encoding = *type; 2205 text_prop.format = *format; 2206 text_prop.nitems = len; 2207 #if defined(FEAT_MBYTE) && defined(X_HAVE_UTF8_STRING) 2208 if (*type == utf8_atom) 2209 status = Xutf8TextPropertyToTextList(X_DISPLAY, &text_prop, 2210 &text_list, &n_text); 2211 else 2212 #endif 2213 status = XmbTextPropertyToTextList(X_DISPLAY, &text_prop, 2214 &text_list, &n_text); 2215 if (status != Success || n_text < 1) 2216 { 2217 *(int *)success = FALSE; 2218 return; 2219 } 2220 p = (char_u *)text_list[0]; 2221 len = STRLEN(p); 2222 } 2223 clip_yank_selection(motion_type, p, (long)len, cbd); 2224 2225 if (text_list != NULL) 2226 XFreeStringList(text_list); 2227 #ifdef FEAT_MBYTE 2228 vim_free(tmpbuf); 2229 #endif 2230 XtFree((char *)value); 2231 *(int *)success = TRUE; 2232 } 2233 2234 void 2235 clip_x11_request_selection(myShell, dpy, cbd) 2236 Widget myShell; 2237 Display *dpy; 2238 VimClipboard *cbd; 2239 { 2240 XEvent event; 2241 Atom type; 2242 static int success; 2243 int i; 2244 time_t start_time; 2245 int timed_out = FALSE; 2246 2247 for (i = 2248 #ifdef FEAT_MBYTE 2249 0 2250 #else 2251 1 2252 #endif 2253 ; i < 6; i++) 2254 { 2255 switch (i) 2256 { 2257 #ifdef FEAT_MBYTE 2258 case 0: type = vimenc_atom; break; 2259 #endif 2260 case 1: type = vim_atom; break; 2261 #ifdef FEAT_MBYTE 2262 case 2: type = utf8_atom; break; 2263 #endif 2264 case 3: type = compound_text_atom; break; 2265 case 4: type = text_atom; break; 2266 default: type = XA_STRING; 2267 } 2268 #ifdef FEAT_MBYTE 2269 if (type == utf8_atom 2270 # if defined(X_HAVE_UTF8_STRING) 2271 && !enc_utf8 2272 # endif 2273 ) 2274 /* Only request utf-8 when 'encoding' is utf8 and 2275 * Xutf8TextPropertyToTextList is available. */ 2276 continue; 2277 #endif 2278 success = MAYBE; 2279 XtGetSelectionValue(myShell, cbd->sel_atom, type, 2280 clip_x11_request_selection_cb, (XtPointer)&success, CurrentTime); 2281 2282 /* Make sure the request for the selection goes out before waiting for 2283 * a response. */ 2284 XFlush(dpy); 2285 2286 /* 2287 * Wait for result of selection request, otherwise if we type more 2288 * characters, then they will appear before the one that requested the 2289 * paste! Don't worry, we will catch up with any other events later. 2290 */ 2291 start_time = time(NULL); 2292 while (success == MAYBE) 2293 { 2294 if (XCheckTypedEvent(dpy, SelectionNotify, &event) 2295 || XCheckTypedEvent(dpy, SelectionRequest, &event) 2296 || XCheckTypedEvent(dpy, PropertyNotify, &event)) 2297 { 2298 /* This is where clip_x11_request_selection_cb() should be 2299 * called. It may actually happen a bit later, so we loop 2300 * until "success" changes. 2301 * We may get a SelectionRequest here and if we don't handle 2302 * it we hang. KDE klipper does this, for example. 2303 * We need to handle a PropertyNotify for large selections. */ 2304 XtDispatchEvent(&event); 2305 continue; 2306 } 2307 2308 /* Time out after 2 to 3 seconds to avoid that we hang when the 2309 * other process doesn't respond. Note that the SelectionNotify 2310 * event may still come later when the selection owner comes back 2311 * to life and the text gets inserted unexpectedly. Don't know 2312 * why that happens or how to avoid that :-(. */ 2313 if (time(NULL) > start_time + 2) 2314 { 2315 timed_out = TRUE; 2316 break; 2317 } 2318 2319 /* Do we need this? Probably not. */ 2320 XSync(dpy, False); 2321 2322 /* Wait for 1 msec to avoid that we eat up all CPU time. */ 2323 ui_delay(1L, TRUE); 2324 } 2325 2326 if (success == TRUE) 2327 return; 2328 2329 /* don't do a retry with another type after timing out, otherwise we 2330 * hang for 15 seconds. */ 2331 if (timed_out) 2332 break; 2333 } 2334 2335 /* Final fallback position - use the X CUT_BUFFER0 store */ 2336 yank_cut_buffer0(dpy, cbd); 2337 } 2338 2339 static Boolean 2340 clip_x11_convert_selection_cb(w, sel_atom, target, type, value, length, format) 2341 Widget w UNUSED; 2342 Atom *sel_atom; 2343 Atom *target; 2344 Atom *type; 2345 XtPointer *value; 2346 long_u *length; 2347 int *format; 2348 { 2349 char_u *string; 2350 char_u *result; 2351 int motion_type; 2352 VimClipboard *cbd; 2353 int i; 2354 2355 if (*sel_atom == clip_plus.sel_atom) 2356 cbd = &clip_plus; 2357 else 2358 cbd = &clip_star; 2359 2360 if (!cbd->owned) 2361 return False; /* Shouldn't ever happen */ 2362 2363 /* requestor wants to know what target types we support */ 2364 if (*target == targets_atom) 2365 { 2366 Atom *array; 2367 2368 if ((array = (Atom *)XtMalloc((unsigned)(sizeof(Atom) * 7))) == NULL) 2369 return False; 2370 *value = (XtPointer)array; 2371 i = 0; 2372 array[i++] = targets_atom; 2373 #ifdef FEAT_MBYTE 2374 array[i++] = vimenc_atom; 2375 #endif 2376 array[i++] = vim_atom; 2377 #ifdef FEAT_MBYTE 2378 if (enc_utf8) 2379 array[i++] = utf8_atom; 2380 #endif 2381 array[i++] = XA_STRING; 2382 array[i++] = text_atom; 2383 array[i++] = compound_text_atom; 2384 2385 *type = XA_ATOM; 2386 /* This used to be: *format = sizeof(Atom) * 8; but that caused 2387 * crashes on 64 bit machines. (Peter Derr) */ 2388 *format = 32; 2389 *length = i; 2390 return True; 2391 } 2392 2393 if ( *target != XA_STRING 2394 #ifdef FEAT_MBYTE 2395 && *target != vimenc_atom 2396 && (*target != utf8_atom || !enc_utf8) 2397 #endif 2398 && *target != vim_atom 2399 && *target != text_atom 2400 && *target != compound_text_atom) 2401 return False; 2402 2403 clip_get_selection(cbd); 2404 motion_type = clip_convert_selection(&string, length, cbd); 2405 if (motion_type < 0) 2406 return False; 2407 2408 /* For our own format, the first byte contains the motion type */ 2409 if (*target == vim_atom) 2410 (*length)++; 2411 2412 #ifdef FEAT_MBYTE 2413 /* Our own format with encoding: motion 'encoding' NUL text */ 2414 if (*target == vimenc_atom) 2415 *length += STRLEN(p_enc) + 2; 2416 #endif 2417 2418 *value = XtMalloc((Cardinal)*length); 2419 result = (char_u *)*value; 2420 if (result == NULL) 2421 { 2422 vim_free(string); 2423 return False; 2424 } 2425 2426 if (*target == XA_STRING 2427 #ifdef FEAT_MBYTE 2428 || (*target == utf8_atom && enc_utf8) 2429 #endif 2430 ) 2431 { 2432 mch_memmove(result, string, (size_t)(*length)); 2433 *type = *target; 2434 } 2435 else if (*target == compound_text_atom || *target == text_atom) 2436 { 2437 XTextProperty text_prop; 2438 char *string_nt = (char *)alloc((unsigned)*length + 1); 2439 int conv_result; 2440 2441 /* create NUL terminated string which XmbTextListToTextProperty wants */ 2442 mch_memmove(string_nt, string, (size_t)*length); 2443 string_nt[*length] = NUL; 2444 conv_result = XmbTextListToTextProperty(X_DISPLAY, (char **)&string_nt, 2445 1, XCompoundTextStyle, &text_prop); 2446 vim_free(string_nt); 2447 XtFree(*value); /* replace with COMPOUND text */ 2448 if (conv_result != Success) 2449 { 2450 vim_free(string); 2451 return False; 2452 } 2453 *value = (XtPointer)(text_prop.value); /* from plain text */ 2454 *length = text_prop.nitems; 2455 *type = compound_text_atom; 2456 } 2457 2458 #ifdef FEAT_MBYTE 2459 else if (*target == vimenc_atom) 2460 { 2461 int l = STRLEN(p_enc); 2462 2463 result[0] = motion_type; 2464 STRCPY(result + 1, p_enc); 2465 mch_memmove(result + l + 2, string, (size_t)(*length - l - 2)); 2466 *type = vimenc_atom; 2467 } 2468 #endif 2469 2470 else 2471 { 2472 result[0] = motion_type; 2473 mch_memmove(result + 1, string, (size_t)(*length - 1)); 2474 *type = vim_atom; 2475 } 2476 *format = 8; /* 8 bits per char */ 2477 vim_free(string); 2478 return True; 2479 } 2480 2481 static void 2482 clip_x11_lose_ownership_cb(w, sel_atom) 2483 Widget w UNUSED; 2484 Atom *sel_atom; 2485 { 2486 if (*sel_atom == clip_plus.sel_atom) 2487 clip_lose_selection(&clip_plus); 2488 else 2489 clip_lose_selection(&clip_star); 2490 } 2491 2492 void 2493 clip_x11_lose_selection(myShell, cbd) 2494 Widget myShell; 2495 VimClipboard *cbd; 2496 { 2497 XtDisownSelection(myShell, cbd->sel_atom, 2498 XtLastTimestampProcessed(XtDisplay(myShell))); 2499 } 2500 2501 int 2502 clip_x11_own_selection(myShell, cbd) 2503 Widget myShell; 2504 VimClipboard *cbd; 2505 { 2506 /* When using the GUI we have proper timestamps, use the one of the last 2507 * event. When in the console we don't get events (the terminal gets 2508 * them), Get the time by a zero-length append, clip_x11_timestamp_cb will 2509 * be called with the current timestamp. */ 2510 #ifdef FEAT_GUI 2511 if (gui.in_use) 2512 { 2513 if (XtOwnSelection(myShell, cbd->sel_atom, 2514 XtLastTimestampProcessed(XtDisplay(myShell)), 2515 clip_x11_convert_selection_cb, clip_x11_lose_ownership_cb, 2516 NULL) == False) 2517 return FAIL; 2518 } 2519 else 2520 #endif 2521 { 2522 if (!XChangeProperty(XtDisplay(myShell), XtWindow(myShell), 2523 cbd->sel_atom, timestamp_atom, 32, PropModeAppend, NULL, 0)) 2524 return FAIL; 2525 } 2526 /* Flush is required in a terminal as nothing else is doing it. */ 2527 XFlush(XtDisplay(myShell)); 2528 return OK; 2529 } 2530 2531 /* 2532 * Send the current selection to the clipboard. Do nothing for X because we 2533 * will fill in the selection only when requested by another app. 2534 */ 2535 void 2536 clip_x11_set_selection(cbd) 2537 VimClipboard *cbd UNUSED; 2538 { 2539 } 2540 2541 int 2542 clip_x11_owner_exists(cbd) 2543 VimClipboard *cbd; 2544 { 2545 return XGetSelectionOwner(X_DISPLAY, cbd->sel_atom) != None; 2546 } 2547 #endif 2548 2549 #if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) \ 2550 || defined(FEAT_GUI_GTK) || defined(PROTO) 2551 /* 2552 * Get the contents of the X CUT_BUFFER0 and put it in "cbd". 2553 */ 2554 void 2555 yank_cut_buffer0(dpy, cbd) 2556 Display *dpy; 2557 VimClipboard *cbd; 2558 { 2559 int nbytes = 0; 2560 char_u *buffer = (char_u *)XFetchBuffer(dpy, &nbytes, 0); 2561 2562 if (nbytes > 0) 2563 { 2564 #ifdef FEAT_MBYTE 2565 int done = FALSE; 2566 2567 /* CUT_BUFFER0 is supposed to be always latin1. Convert to 'enc' when 2568 * using a multi-byte encoding. Conversion between two 8-bit 2569 * character sets usually fails and the text might actually be in 2570 * 'enc' anyway. */ 2571 if (has_mbyte) 2572 { 2573 char_u *conv_buf; 2574 vimconv_T vc; 2575 2576 vc.vc_type = CONV_NONE; 2577 if (convert_setup(&vc, (char_u *)"latin1", p_enc) == OK) 2578 { 2579 conv_buf = string_convert(&vc, buffer, &nbytes); 2580 if (conv_buf != NULL) 2581 { 2582 clip_yank_selection(MCHAR, conv_buf, (long)nbytes, cbd); 2583 vim_free(conv_buf); 2584 done = TRUE; 2585 } 2586 convert_setup(&vc, NULL, NULL); 2587 } 2588 } 2589 if (!done) /* use the text without conversion */ 2590 #endif 2591 clip_yank_selection(MCHAR, buffer, (long)nbytes, cbd); 2592 XFree((void *)buffer); 2593 if (p_verbose > 0) 2594 { 2595 verbose_enter(); 2596 verb_msg((char_u *)_("Used CUT_BUFFER0 instead of empty selection")); 2597 verbose_leave(); 2598 } 2599 } 2600 } 2601 #endif 2602 2603 #if defined(FEAT_MOUSE) || defined(PROTO) 2604 2605 /* 2606 * Move the cursor to the specified row and column on the screen. 2607 * Change current window if necessary. Returns an integer with the 2608 * CURSOR_MOVED bit set if the cursor has moved or unset otherwise. 2609 * 2610 * The MOUSE_FOLD_CLOSE bit is set when clicked on the '-' in a fold column. 2611 * The MOUSE_FOLD_OPEN bit is set when clicked on the '+' in a fold column. 2612 * 2613 * If flags has MOUSE_FOCUS, then the current window will not be changed, and 2614 * if the mouse is outside the window then the text will scroll, or if the 2615 * mouse was previously on a status line, then the status line may be dragged. 2616 * 2617 * If flags has MOUSE_MAY_VIS, then VIsual mode will be started before the 2618 * cursor is moved unless the cursor was on a status line. 2619 * This function returns one of IN_UNKNOWN, IN_BUFFER, IN_STATUS_LINE or 2620 * IN_SEP_LINE depending on where the cursor was clicked. 2621 * 2622 * If flags has MOUSE_MAY_STOP_VIS, then Visual mode will be stopped, unless 2623 * the mouse is on the status line of the same window. 2624 * 2625 * If flags has MOUSE_DID_MOVE, nothing is done if the mouse didn't move since 2626 * the last call. 2627 * 2628 * If flags has MOUSE_SETPOS, nothing is done, only the current position is 2629 * remembered. 2630 */ 2631 int 2632 jump_to_mouse(flags, inclusive, which_button) 2633 int flags; 2634 int *inclusive; /* used for inclusive operator, can be NULL */ 2635 int which_button; /* MOUSE_LEFT, MOUSE_RIGHT, MOUSE_MIDDLE */ 2636 { 2637 static int on_status_line = 0; /* #lines below bottom of window */ 2638 #ifdef FEAT_VERTSPLIT 2639 static int on_sep_line = 0; /* on separator right of window */ 2640 #endif 2641 static int prev_row = -1; 2642 static int prev_col = -1; 2643 static win_T *dragwin = NULL; /* window being dragged */ 2644 static int did_drag = FALSE; /* drag was noticed */ 2645 2646 win_T *wp, *old_curwin; 2647 pos_T old_cursor; 2648 int count; 2649 int first; 2650 int row = mouse_row; 2651 int col = mouse_col; 2652 #ifdef FEAT_FOLDING 2653 int mouse_char; 2654 #endif 2655 2656 mouse_past_bottom = FALSE; 2657 mouse_past_eol = FALSE; 2658 2659 if (flags & MOUSE_RELEASED) 2660 { 2661 /* On button release we may change window focus if positioned on a 2662 * status line and no dragging happened. */ 2663 if (dragwin != NULL && !did_drag) 2664 flags &= ~(MOUSE_FOCUS | MOUSE_DID_MOVE); 2665 dragwin = NULL; 2666 did_drag = FALSE; 2667 } 2668 2669 if ((flags & MOUSE_DID_MOVE) 2670 && prev_row == mouse_row 2671 && prev_col == mouse_col) 2672 { 2673 retnomove: 2674 /* before moving the cursor for a left click which is NOT in a status 2675 * line, stop Visual mode */ 2676 if (on_status_line) 2677 return IN_STATUS_LINE; 2678 #ifdef FEAT_VERTSPLIT 2679 if (on_sep_line) 2680 return IN_SEP_LINE; 2681 #endif 2682 if (flags & MOUSE_MAY_STOP_VIS) 2683 { 2684 end_visual_mode(); 2685 redraw_curbuf_later(INVERTED); /* delete the inversion */ 2686 } 2687 #if defined(FEAT_CMDWIN) && defined(FEAT_CLIPBOARD) 2688 /* Continue a modeless selection in another window. */ 2689 if (cmdwin_type != 0 && row < W_WINROW(curwin)) 2690 return IN_OTHER_WIN; 2691 #endif 2692 return IN_BUFFER; 2693 } 2694 2695 prev_row = mouse_row; 2696 prev_col = mouse_col; 2697 2698 if (flags & MOUSE_SETPOS) 2699 goto retnomove; /* ugly goto... */ 2700 2701 #ifdef FEAT_FOLDING 2702 /* Remember the character under the mouse, it might be a '-' or '+' in the 2703 * fold column. */ 2704 if (row >= 0 && row < Rows && col >= 0 && col <= Columns 2705 && ScreenLines != NULL) 2706 mouse_char = ScreenLines[LineOffset[row] + col]; 2707 else 2708 mouse_char = ' '; 2709 #endif 2710 2711 old_curwin = curwin; 2712 old_cursor = curwin->w_cursor; 2713 2714 if (!(flags & MOUSE_FOCUS)) 2715 { 2716 if (row < 0 || col < 0) /* check if it makes sense */ 2717 return IN_UNKNOWN; 2718 2719 #ifdef FEAT_WINDOWS 2720 /* find the window where the row is in */ 2721 wp = mouse_find_win(&row, &col); 2722 #else 2723 wp = firstwin; 2724 #endif 2725 dragwin = NULL; 2726 /* 2727 * winpos and height may change in win_enter()! 2728 */ 2729 if (row >= wp->w_height) /* In (or below) status line */ 2730 { 2731 on_status_line = row - wp->w_height + 1; 2732 dragwin = wp; 2733 } 2734 else 2735 on_status_line = 0; 2736 #ifdef FEAT_VERTSPLIT 2737 if (col >= wp->w_width) /* In separator line */ 2738 { 2739 on_sep_line = col - wp->w_width + 1; 2740 dragwin = wp; 2741 } 2742 else 2743 on_sep_line = 0; 2744 2745 /* The rightmost character of the status line might be a vertical 2746 * separator character if there is no connecting window to the right. */ 2747 if (on_status_line && on_sep_line) 2748 { 2749 if (stl_connected(wp)) 2750 on_sep_line = 0; 2751 else 2752 on_status_line = 0; 2753 } 2754 #endif 2755 2756 /* Before jumping to another buffer, or moving the cursor for a left 2757 * click, stop Visual mode. */ 2758 if (VIsual_active 2759 && (wp->w_buffer != curwin->w_buffer 2760 || (!on_status_line 2761 #ifdef FEAT_VERTSPLIT 2762 && !on_sep_line 2763 #endif 2764 #ifdef FEAT_FOLDING 2765 && ( 2766 # ifdef FEAT_RIGHTLEFT 2767 wp->w_p_rl ? col < W_WIDTH(wp) - wp->w_p_fdc : 2768 # endif 2769 col >= wp->w_p_fdc 2770 # ifdef FEAT_CMDWIN 2771 + (cmdwin_type == 0 && wp == curwin ? 0 : 1) 2772 # endif 2773 ) 2774 #endif 2775 && (flags & MOUSE_MAY_STOP_VIS)))) 2776 { 2777 end_visual_mode(); 2778 redraw_curbuf_later(INVERTED); /* delete the inversion */ 2779 } 2780 #ifdef FEAT_CMDWIN 2781 if (cmdwin_type != 0 && wp != curwin) 2782 { 2783 /* A click outside the command-line window: Use modeless 2784 * selection if possible. Allow dragging the status lines. */ 2785 # ifdef FEAT_VERTSPLIT 2786 on_sep_line = 0; 2787 # endif 2788 # ifdef FEAT_CLIPBOARD 2789 if (on_status_line) 2790 return IN_STATUS_LINE; 2791 return IN_OTHER_WIN; 2792 # else 2793 row = 0; 2794 col += wp->w_wincol; 2795 wp = curwin; 2796 # endif 2797 } 2798 #endif 2799 #ifdef FEAT_WINDOWS 2800 /* Only change window focus when not clicking on or dragging the 2801 * status line. Do change focus when releasing the mouse button 2802 * (MOUSE_FOCUS was set above if we dragged first). */ 2803 if (dragwin == NULL || (flags & MOUSE_RELEASED)) 2804 win_enter(wp, TRUE); /* can make wp invalid! */ 2805 # ifdef CHECK_DOUBLE_CLICK 2806 /* set topline, to be able to check for double click ourselves */ 2807 if (curwin != old_curwin) 2808 set_mouse_topline(curwin); 2809 # endif 2810 #endif 2811 if (on_status_line) /* In (or below) status line */ 2812 { 2813 /* Don't use start_arrow() if we're in the same window */ 2814 if (curwin == old_curwin) 2815 return IN_STATUS_LINE; 2816 else 2817 return IN_STATUS_LINE | CURSOR_MOVED; 2818 } 2819 #ifdef FEAT_VERTSPLIT 2820 if (on_sep_line) /* In (or below) status line */ 2821 { 2822 /* Don't use start_arrow() if we're in the same window */ 2823 if (curwin == old_curwin) 2824 return IN_SEP_LINE; 2825 else 2826 return IN_SEP_LINE | CURSOR_MOVED; 2827 } 2828 #endif 2829 2830 curwin->w_cursor.lnum = curwin->w_topline; 2831 #ifdef FEAT_GUI 2832 /* remember topline, needed for double click */ 2833 gui_prev_topline = curwin->w_topline; 2834 # ifdef FEAT_DIFF 2835 gui_prev_topfill = curwin->w_topfill; 2836 # endif 2837 #endif 2838 } 2839 else if (on_status_line && which_button == MOUSE_LEFT) 2840 { 2841 #ifdef FEAT_WINDOWS 2842 if (dragwin != NULL) 2843 { 2844 /* Drag the status line */ 2845 count = row - dragwin->w_winrow - dragwin->w_height + 1 2846 - on_status_line; 2847 win_drag_status_line(dragwin, count); 2848 did_drag |= count; 2849 } 2850 #endif 2851 return IN_STATUS_LINE; /* Cursor didn't move */ 2852 } 2853 #ifdef FEAT_VERTSPLIT 2854 else if (on_sep_line && which_button == MOUSE_LEFT) 2855 { 2856 if (dragwin != NULL) 2857 { 2858 /* Drag the separator column */ 2859 count = col - dragwin->w_wincol - dragwin->w_width + 1 2860 - on_sep_line; 2861 win_drag_vsep_line(dragwin, count); 2862 did_drag |= count; 2863 } 2864 return IN_SEP_LINE; /* Cursor didn't move */ 2865 } 2866 #endif 2867 else /* keep_window_focus must be TRUE */ 2868 { 2869 /* before moving the cursor for a left click, stop Visual mode */ 2870 if (flags & MOUSE_MAY_STOP_VIS) 2871 { 2872 end_visual_mode(); 2873 redraw_curbuf_later(INVERTED); /* delete the inversion */ 2874 } 2875 2876 #if defined(FEAT_CMDWIN) && defined(FEAT_CLIPBOARD) 2877 /* Continue a modeless selection in another window. */ 2878 if (cmdwin_type != 0 && row < W_WINROW(curwin)) 2879 return IN_OTHER_WIN; 2880 #endif 2881 2882 row -= W_WINROW(curwin); 2883 #ifdef FEAT_VERTSPLIT 2884 col -= W_WINCOL(curwin); 2885 #endif 2886 2887 /* 2888 * When clicking beyond the end of the window, scroll the screen. 2889 * Scroll by however many rows outside the window we are. 2890 */ 2891 if (row < 0) 2892 { 2893 count = 0; 2894 for (first = TRUE; curwin->w_topline > 1; ) 2895 { 2896 #ifdef FEAT_DIFF 2897 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)) 2898 ++count; 2899 else 2900 #endif 2901 count += plines(curwin->w_topline - 1); 2902 if (!first && count > -row) 2903 break; 2904 first = FALSE; 2905 #ifdef FEAT_FOLDING 2906 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); 2907 #endif 2908 #ifdef FEAT_DIFF 2909 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)) 2910 ++curwin->w_topfill; 2911 else 2912 #endif 2913 { 2914 --curwin->w_topline; 2915 #ifdef FEAT_DIFF 2916 curwin->w_topfill = 0; 2917 #endif 2918 } 2919 } 2920 #ifdef FEAT_DIFF 2921 check_topfill(curwin, FALSE); 2922 #endif 2923 curwin->w_valid &= 2924 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); 2925 redraw_later(VALID); 2926 row = 0; 2927 } 2928 else if (row >= curwin->w_height) 2929 { 2930 count = 0; 2931 for (first = TRUE; curwin->w_topline < curbuf->b_ml.ml_line_count; ) 2932 { 2933 #ifdef FEAT_DIFF 2934 if (curwin->w_topfill > 0) 2935 ++count; 2936 else 2937 #endif 2938 count += plines(curwin->w_topline); 2939 if (!first && count > row - curwin->w_height + 1) 2940 break; 2941 first = FALSE; 2942 #ifdef FEAT_FOLDING 2943 if (hasFolding(curwin->w_topline, NULL, &curwin->w_topline) 2944 && curwin->w_topline == curbuf->b_ml.ml_line_count) 2945 break; 2946 #endif 2947 #ifdef FEAT_DIFF 2948 if (curwin->w_topfill > 0) 2949 --curwin->w_topfill; 2950 else 2951 #endif 2952 { 2953 ++curwin->w_topline; 2954 #ifdef FEAT_DIFF 2955 curwin->w_topfill = 2956 diff_check_fill(curwin, curwin->w_topline); 2957 #endif 2958 } 2959 } 2960 #ifdef FEAT_DIFF 2961 check_topfill(curwin, FALSE); 2962 #endif 2963 redraw_later(VALID); 2964 curwin->w_valid &= 2965 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); 2966 row = curwin->w_height - 1; 2967 } 2968 else if (row == 0) 2969 { 2970 /* When dragging the mouse, while the text has been scrolled up as 2971 * far as it goes, moving the mouse in the top line should scroll 2972 * the text down (done later when recomputing w_topline). */ 2973 if (mouse_dragging > 0 2974 && curwin->w_cursor.lnum 2975 == curwin->w_buffer->b_ml.ml_line_count 2976 && curwin->w_cursor.lnum == curwin->w_topline) 2977 curwin->w_valid &= ~(VALID_TOPLINE); 2978 } 2979 } 2980 2981 #ifdef FEAT_FOLDING 2982 /* Check for position outside of the fold column. */ 2983 if ( 2984 # ifdef FEAT_RIGHTLEFT 2985 curwin->w_p_rl ? col < W_WIDTH(curwin) - curwin->w_p_fdc : 2986 # endif 2987 col >= curwin->w_p_fdc 2988 # ifdef FEAT_CMDWIN 2989 + (cmdwin_type == 0 ? 0 : 1) 2990 # endif 2991 ) 2992 mouse_char = ' '; 2993 #endif 2994 2995 /* compute the position in the buffer line from the posn on the screen */ 2996 if (mouse_comp_pos(curwin, &row, &col, &curwin->w_cursor.lnum)) 2997 mouse_past_bottom = TRUE; 2998 2999 /* Start Visual mode before coladvance(), for when 'sel' != "old" */ 3000 if ((flags & MOUSE_MAY_VIS) && !VIsual_active) 3001 { 3002 check_visual_highlight(); 3003 VIsual = old_cursor; 3004 VIsual_active = TRUE; 3005 VIsual_reselect = TRUE; 3006 /* if 'selectmode' contains "mouse", start Select mode */ 3007 may_start_select('o'); 3008 setmouse(); 3009 if (p_smd && msg_silent == 0) 3010 redraw_cmdline = TRUE; /* show visual mode later */ 3011 } 3012 3013 curwin->w_curswant = col; 3014 curwin->w_set_curswant = FALSE; /* May still have been TRUE */ 3015 if (coladvance(col) == FAIL) /* Mouse click beyond end of line */ 3016 { 3017 if (inclusive != NULL) 3018 *inclusive = TRUE; 3019 mouse_past_eol = TRUE; 3020 } 3021 else if (inclusive != NULL) 3022 *inclusive = FALSE; 3023 3024 count = IN_BUFFER; 3025 if (curwin != old_curwin || curwin->w_cursor.lnum != old_cursor.lnum 3026 || curwin->w_cursor.col != old_cursor.col) 3027 count |= CURSOR_MOVED; /* Cursor has moved */ 3028 3029 #ifdef FEAT_FOLDING 3030 if (mouse_char == '+') 3031 count |= MOUSE_FOLD_OPEN; 3032 else if (mouse_char != ' ') 3033 count |= MOUSE_FOLD_CLOSE; 3034 #endif 3035 3036 return count; 3037 } 3038 3039 /* 3040 * Compute the position in the buffer line from the posn on the screen in 3041 * window "win". 3042 * Returns TRUE if the position is below the last line. 3043 */ 3044 int 3045 mouse_comp_pos(win, rowp, colp, lnump) 3046 win_T *win; 3047 int *rowp; 3048 int *colp; 3049 linenr_T *lnump; 3050 { 3051 int col = *colp; 3052 int row = *rowp; 3053 linenr_T lnum; 3054 int retval = FALSE; 3055 int off; 3056 int count; 3057 3058 #ifdef FEAT_RIGHTLEFT 3059 if (win->w_p_rl) 3060 col = W_WIDTH(win) - 1 - col; 3061 #endif 3062 3063 lnum = win->w_topline; 3064 3065 while (row > 0) 3066 { 3067 #ifdef FEAT_DIFF 3068 /* Don't include filler lines in "count" */ 3069 if (win->w_p_diff 3070 # ifdef FEAT_FOLDING 3071 && !hasFoldingWin(win, lnum, NULL, NULL, TRUE, NULL) 3072 # endif 3073 ) 3074 { 3075 if (lnum == win->w_topline) 3076 row -= win->w_topfill; 3077 else 3078 row -= diff_check_fill(win, lnum); 3079 count = plines_win_nofill(win, lnum, TRUE); 3080 } 3081 else 3082 #endif 3083 count = plines_win(win, lnum, TRUE); 3084 if (count > row) 3085 break; /* Position is in this buffer line. */ 3086 #ifdef FEAT_FOLDING 3087 (void)hasFoldingWin(win, lnum, NULL, &lnum, TRUE, NULL); 3088 #endif 3089 if (lnum == win->w_buffer->b_ml.ml_line_count) 3090 { 3091 retval = TRUE; 3092 break; /* past end of file */ 3093 } 3094 row -= count; 3095 ++lnum; 3096 } 3097 3098 if (!retval) 3099 { 3100 /* Compute the column without wrapping. */ 3101 off = win_col_off(win) - win_col_off2(win); 3102 if (col < off) 3103 col = off; 3104 col += row * (W_WIDTH(win) - off); 3105 /* add skip column (for long wrapping line) */ 3106 col += win->w_skipcol; 3107 } 3108 3109 if (!win->w_p_wrap) 3110 col += win->w_leftcol; 3111 3112 /* skip line number and fold column in front of the line */ 3113 col -= win_col_off(win); 3114 if (col < 0) 3115 { 3116 #ifdef FEAT_NETBEANS_INTG 3117 netbeans_gutter_click(lnum); 3118 #endif 3119 col = 0; 3120 } 3121 3122 *colp = col; 3123 *rowp = row; 3124 *lnump = lnum; 3125 return retval; 3126 } 3127 3128 #if defined(FEAT_WINDOWS) || defined(PROTO) 3129 /* 3130 * Find the window at screen position "*rowp" and "*colp". The positions are 3131 * updated to become relative to the top-left of the window. 3132 */ 3133 win_T * 3134 mouse_find_win(rowp, colp) 3135 int *rowp; 3136 int *colp UNUSED; 3137 { 3138 frame_T *fp; 3139 3140 fp = topframe; 3141 *rowp -= firstwin->w_winrow; 3142 for (;;) 3143 { 3144 if (fp->fr_layout == FR_LEAF) 3145 break; 3146 #ifdef FEAT_VERTSPLIT 3147 if (fp->fr_layout == FR_ROW) 3148 { 3149 for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 3150 { 3151 if (*colp < fp->fr_width) 3152 break; 3153 *colp -= fp->fr_width; 3154 } 3155 } 3156 #endif 3157 else /* fr_layout == FR_COL */ 3158 { 3159 for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 3160 { 3161 if (*rowp < fp->fr_height) 3162 break; 3163 *rowp -= fp->fr_height; 3164 } 3165 } 3166 } 3167 return fp->fr_win; 3168 } 3169 #endif 3170 3171 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MAC) \ 3172 || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \ 3173 || defined(FEAT_GUI_PHOTON) || defined(PROTO) 3174 /* 3175 * Translate window coordinates to buffer position without any side effects 3176 */ 3177 int 3178 get_fpos_of_mouse(mpos) 3179 pos_T *mpos; 3180 { 3181 win_T *wp; 3182 int row = mouse_row; 3183 int col = mouse_col; 3184 3185 if (row < 0 || col < 0) /* check if it makes sense */ 3186 return IN_UNKNOWN; 3187 3188 #ifdef FEAT_WINDOWS 3189 /* find the window where the row is in */ 3190 wp = mouse_find_win(&row, &col); 3191 #else 3192 wp = firstwin; 3193 #endif 3194 /* 3195 * winpos and height may change in win_enter()! 3196 */ 3197 if (row >= wp->w_height) /* In (or below) status line */ 3198 return IN_STATUS_LINE; 3199 #ifdef FEAT_VERTSPLIT 3200 if (col >= wp->w_width) /* In vertical separator line */ 3201 return IN_SEP_LINE; 3202 #endif 3203 3204 if (wp != curwin) 3205 return IN_UNKNOWN; 3206 3207 /* compute the position in the buffer line from the posn on the screen */ 3208 if (mouse_comp_pos(curwin, &row, &col, &mpos->lnum)) 3209 return IN_STATUS_LINE; /* past bottom */ 3210 3211 mpos->col = vcol2col(wp, mpos->lnum, col); 3212 3213 if (mpos->col > 0) 3214 --mpos->col; 3215 #ifdef FEAT_VIRTUALEDIT 3216 mpos->coladd = 0; 3217 #endif 3218 return IN_BUFFER; 3219 } 3220 3221 /* 3222 * Convert a virtual (screen) column to a character column. 3223 * The first column is one. 3224 */ 3225 int 3226 vcol2col(wp, lnum, vcol) 3227 win_T *wp; 3228 linenr_T lnum; 3229 int vcol; 3230 { 3231 /* try to advance to the specified column */ 3232 int count = 0; 3233 char_u *ptr; 3234 char_u *line; 3235 3236 line = ptr = ml_get_buf(wp->w_buffer, lnum, FALSE); 3237 while (count < vcol && *ptr != NUL) 3238 { 3239 count += win_lbr_chartabsize(wp, line, ptr, count, NULL); 3240 mb_ptr_adv(ptr); 3241 } 3242 return (int)(ptr - line); 3243 } 3244 #endif 3245 3246 #endif /* FEAT_MOUSE */ 3247 3248 #if defined(FEAT_GUI) || defined(WIN3264) || defined(PROTO) 3249 /* 3250 * Called when focus changed. Used for the GUI or for systems where this can 3251 * be done in the console (Win32). 3252 */ 3253 void 3254 ui_focus_change(in_focus) 3255 int in_focus; /* TRUE if focus gained. */ 3256 { 3257 static time_t last_time = (time_t)0; 3258 int need_redraw = FALSE; 3259 3260 /* When activated: Check if any file was modified outside of Vim. 3261 * Only do this when not done within the last two seconds (could get 3262 * several events in a row). */ 3263 if (in_focus && last_time + 2 < time(NULL)) 3264 { 3265 need_redraw = check_timestamps( 3266 # ifdef FEAT_GUI 3267 gui.in_use 3268 # else 3269 FALSE 3270 # endif 3271 ); 3272 last_time = time(NULL); 3273 } 3274 3275 #ifdef FEAT_AUTOCMD 3276 /* 3277 * Fire the focus gained/lost autocommand. 3278 */ 3279 need_redraw |= apply_autocmds(in_focus ? EVENT_FOCUSGAINED 3280 : EVENT_FOCUSLOST, NULL, NULL, FALSE, curbuf); 3281 #endif 3282 3283 if (need_redraw) 3284 { 3285 /* Something was executed, make sure the cursor is put back where it 3286 * belongs. */ 3287 need_wait_return = FALSE; 3288 3289 if (State & CMDLINE) 3290 redrawcmdline(); 3291 else if (State == HITRETURN || State == SETWSIZE || State == ASKMORE 3292 || State == EXTERNCMD || State == CONFIRM || exmode_active) 3293 repeat_message(); 3294 else if ((State & NORMAL) || (State & INSERT)) 3295 { 3296 if (must_redraw != 0) 3297 update_screen(0); 3298 setcursor(); 3299 } 3300 cursor_on(); /* redrawing may have switched it off */ 3301 out_flush(); 3302 # ifdef FEAT_GUI 3303 if (gui.in_use) 3304 { 3305 gui_update_cursor(FALSE, TRUE); 3306 gui_update_scrollbars(FALSE); 3307 } 3308 # endif 3309 } 3310 #ifdef FEAT_TITLE 3311 /* File may have been changed from 'readonly' to 'noreadonly' */ 3312 if (need_maketitle) 3313 maketitle(); 3314 #endif 3315 } 3316 #endif 3317 3318 #if defined(USE_IM_CONTROL) || defined(PROTO) 3319 /* 3320 * Save current Input Method status to specified place. 3321 */ 3322 void 3323 im_save_status(psave) 3324 long *psave; 3325 { 3326 /* Don't save when 'imdisable' is set or "xic" is NULL, IM is always 3327 * disabled then (but might start later). 3328 * Also don't save when inside a mapping, vgetc_im_active has not been set 3329 * then. 3330 * And don't save when the keys were stuffed (e.g., for a "." command). 3331 * And don't save when the GUI is running but our window doesn't have 3332 * input focus (e.g., when a find dialog is open). */ 3333 if (!p_imdisable && KeyTyped && !KeyStuffed 3334 # ifdef FEAT_XIM 3335 && xic != NULL 3336 # endif 3337 # ifdef FEAT_GUI 3338 && (!gui.in_use || gui.in_focus) 3339 # endif 3340 ) 3341 { 3342 /* Do save when IM is on, or IM is off and saved status is on. */ 3343 if (vgetc_im_active) 3344 *psave = B_IMODE_IM; 3345 else if (*psave == B_IMODE_IM) 3346 *psave = B_IMODE_NONE; 3347 } 3348 } 3349 #endif 3350