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 #if defined(FEAT_MBYTE) && !defined(WIN3264) 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 #if defined(FEAT_MBYTE) && !defined(WIN3264) 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 char_u *tmpbuf; 1727 1728 tmpbuf = hangul_string_convert(s, &len); 1729 if (tmpbuf != NULL) 1730 s = tmpbuf; 1731 1732 while (len--) 1733 inbuf[inbufcount++] = *s++; 1734 1735 if (tmpbuf != NULL) 1736 vim_free(tmpbuf); 1737 } 1738 #endif 1739 1740 #if defined(FEAT_GUI) || defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) \ 1741 || defined(PROTO) 1742 /* Remove everything from the input buffer. Called when ^C is found */ 1743 void 1744 trash_input_buf() 1745 { 1746 inbufcount = 0; 1747 } 1748 #endif 1749 1750 /* 1751 * Read as much data from the input buffer as possible up to maxlen, and store 1752 * it in buf. 1753 * Note: this function used to be Read() in unix.c 1754 */ 1755 int 1756 read_from_input_buf(buf, maxlen) 1757 char_u *buf; 1758 long maxlen; 1759 { 1760 if (inbufcount == 0) /* if the buffer is empty, fill it */ 1761 fill_input_buf(TRUE); 1762 if (maxlen > inbufcount) 1763 maxlen = inbufcount; 1764 mch_memmove(buf, inbuf, (size_t)maxlen); 1765 inbufcount -= maxlen; 1766 if (inbufcount) 1767 mch_memmove(inbuf, inbuf + maxlen, (size_t)inbufcount); 1768 return (int)maxlen; 1769 } 1770 1771 void 1772 fill_input_buf(exit_on_error) 1773 int exit_on_error UNUSED; 1774 { 1775 #if defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X_UNIX) 1776 int len; 1777 int try; 1778 static int did_read_something = FALSE; 1779 # ifdef FEAT_MBYTE 1780 static char_u *rest = NULL; /* unconverted rest of previous read */ 1781 static int restlen = 0; 1782 int unconverted; 1783 # endif 1784 #endif 1785 1786 #ifdef FEAT_GUI 1787 if (gui.in_use 1788 # ifdef NO_CONSOLE_INPUT 1789 /* Don't use the GUI input when the window hasn't been opened yet. 1790 * We get here from ui_inchar() when we should try reading from stdin. */ 1791 && !no_console_input() 1792 # endif 1793 ) 1794 { 1795 gui_mch_update(); 1796 return; 1797 } 1798 #endif 1799 #if defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X_UNIX) 1800 if (vim_is_input_buf_full()) 1801 return; 1802 /* 1803 * Fill_input_buf() is only called when we really need a character. 1804 * If we can't get any, but there is some in the buffer, just return. 1805 * If we can't get any, and there isn't any in the buffer, we give up and 1806 * exit Vim. 1807 */ 1808 # ifdef __BEOS__ 1809 /* 1810 * On the BeBox version (for now), all input is secretly performed within 1811 * beos_select() which is called from RealWaitForChar(). 1812 */ 1813 while (!vim_is_input_buf_full() && RealWaitForChar(read_cmd_fd, 0, NULL)) 1814 ; 1815 len = inbufcount; 1816 inbufcount = 0; 1817 # else 1818 1819 # ifdef FEAT_SNIFF 1820 if (sniff_request_waiting) 1821 { 1822 add_to_input_buf((char_u *)"\233sniff",6); /* results in K_SNIFF */ 1823 sniff_request_waiting = 0; 1824 want_sniff_request = 0; 1825 return; 1826 } 1827 # endif 1828 1829 # ifdef FEAT_MBYTE 1830 if (rest != NULL) 1831 { 1832 /* Use remainder of previous call, starts with an invalid character 1833 * that may become valid when reading more. */ 1834 if (restlen > INBUFLEN - inbufcount) 1835 unconverted = INBUFLEN - inbufcount; 1836 else 1837 unconverted = restlen; 1838 mch_memmove(inbuf + inbufcount, rest, unconverted); 1839 if (unconverted == restlen) 1840 { 1841 vim_free(rest); 1842 rest = NULL; 1843 } 1844 else 1845 { 1846 restlen -= unconverted; 1847 mch_memmove(rest, rest + unconverted, restlen); 1848 } 1849 inbufcount += unconverted; 1850 } 1851 else 1852 unconverted = 0; 1853 #endif 1854 1855 len = 0; /* to avoid gcc warning */ 1856 for (try = 0; try < 100; ++try) 1857 { 1858 # ifdef VMS 1859 len = vms_read( 1860 # else 1861 len = read(read_cmd_fd, 1862 # endif 1863 (char *)inbuf + inbufcount, (size_t)((INBUFLEN - inbufcount) 1864 # ifdef FEAT_MBYTE 1865 / input_conv.vc_factor 1866 # endif 1867 )); 1868 # if 0 1869 ) /* avoid syntax highlight error */ 1870 # endif 1871 1872 if (len > 0 || got_int) 1873 break; 1874 /* 1875 * If reading stdin results in an error, continue reading stderr. 1876 * This helps when using "foo | xargs vim". 1877 */ 1878 if (!did_read_something && !isatty(read_cmd_fd) && read_cmd_fd == 0) 1879 { 1880 int m = cur_tmode; 1881 1882 /* We probably set the wrong file descriptor to raw mode. Switch 1883 * back to cooked mode, use another descriptor and set the mode to 1884 * what it was. */ 1885 settmode(TMODE_COOK); 1886 #ifdef HAVE_DUP 1887 /* Use stderr for stdin, also works for shell commands. */ 1888 close(0); 1889 ignored = dup(2); 1890 #else 1891 read_cmd_fd = 2; /* read from stderr instead of stdin */ 1892 #endif 1893 settmode(m); 1894 } 1895 if (!exit_on_error) 1896 return; 1897 } 1898 # endif 1899 if (len <= 0 && !got_int) 1900 read_error_exit(); 1901 if (len > 0) 1902 did_read_something = TRUE; 1903 if (got_int) 1904 { 1905 /* Interrupted, pretend a CTRL-C was typed. */ 1906 inbuf[0] = 3; 1907 inbufcount = 1; 1908 } 1909 else 1910 { 1911 # ifdef FEAT_MBYTE 1912 /* 1913 * May perform conversion on the input characters. 1914 * Include the unconverted rest of the previous call. 1915 * If there is an incomplete char at the end it is kept for the next 1916 * time, reading more bytes should make conversion possible. 1917 * Don't do this in the unlikely event that the input buffer is too 1918 * small ("rest" still contains more bytes). 1919 */ 1920 if (input_conv.vc_type != CONV_NONE) 1921 { 1922 inbufcount -= unconverted; 1923 len = convert_input_safe(inbuf + inbufcount, 1924 len + unconverted, INBUFLEN - inbufcount, 1925 rest == NULL ? &rest : NULL, &restlen); 1926 } 1927 # endif 1928 while (len-- > 0) 1929 { 1930 /* 1931 * if a CTRL-C was typed, remove it from the buffer and set got_int 1932 */ 1933 if (inbuf[inbufcount] == 3 && ctrl_c_interrupts) 1934 { 1935 /* remove everything typed before the CTRL-C */ 1936 mch_memmove(inbuf, inbuf + inbufcount, (size_t)(len + 1)); 1937 inbufcount = 0; 1938 got_int = TRUE; 1939 } 1940 ++inbufcount; 1941 } 1942 } 1943 #endif /* UNIX or OS2 or VMS*/ 1944 } 1945 #endif /* defined(UNIX) || defined(FEAT_GUI) || defined(OS2) || defined(VMS) */ 1946 1947 /* 1948 * Exit because of an input read error. 1949 */ 1950 void 1951 read_error_exit() 1952 { 1953 if (silent_mode) /* Normal way to exit for "ex -s" */ 1954 getout(0); 1955 STRCPY(IObuff, _("Vim: Error reading input, exiting...\n")); 1956 preserve_exit(); 1957 } 1958 1959 #if defined(CURSOR_SHAPE) || defined(PROTO) 1960 /* 1961 * May update the shape of the cursor. 1962 */ 1963 void 1964 ui_cursor_shape() 1965 { 1966 # ifdef FEAT_GUI 1967 if (gui.in_use) 1968 gui_update_cursor_later(); 1969 else 1970 # endif 1971 term_cursor_shape(); 1972 1973 # ifdef MCH_CURSOR_SHAPE 1974 mch_update_cursor(); 1975 # endif 1976 1977 # ifdef FEAT_CONCEAL 1978 conceal_check_cursur_line(); 1979 # endif 1980 } 1981 #endif 1982 1983 #if defined(FEAT_CLIPBOARD) || defined(FEAT_GUI) || defined(FEAT_RIGHTLEFT) \ 1984 || defined(FEAT_MBYTE) || defined(PROTO) 1985 /* 1986 * Check bounds for column number 1987 */ 1988 int 1989 check_col(col) 1990 int col; 1991 { 1992 if (col < 0) 1993 return 0; 1994 if (col >= (int)screen_Columns) 1995 return (int)screen_Columns - 1; 1996 return col; 1997 } 1998 1999 /* 2000 * Check bounds for row number 2001 */ 2002 int 2003 check_row(row) 2004 int row; 2005 { 2006 if (row < 0) 2007 return 0; 2008 if (row >= (int)screen_Rows) 2009 return (int)screen_Rows - 1; 2010 return row; 2011 } 2012 #endif 2013 2014 /* 2015 * Stuff for the X clipboard. Shared between VMS and Unix. 2016 */ 2017 2018 #if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) || defined(PROTO) 2019 # include <X11/Xatom.h> 2020 # include <X11/Intrinsic.h> 2021 2022 /* 2023 * Open the application context (if it hasn't been opened yet). 2024 * Used for Motif and Athena GUI and the xterm clipboard. 2025 */ 2026 void 2027 open_app_context() 2028 { 2029 if (app_context == NULL) 2030 { 2031 XtToolkitInitialize(); 2032 app_context = XtCreateApplicationContext(); 2033 } 2034 } 2035 2036 static Atom vim_atom; /* Vim's own special selection format */ 2037 #ifdef FEAT_MBYTE 2038 static Atom vimenc_atom; /* Vim's extended selection format */ 2039 static Atom utf8_atom; 2040 #endif 2041 static Atom compound_text_atom; 2042 static Atom text_atom; 2043 static Atom targets_atom; 2044 static Atom timestamp_atom; /* Used to get a timestamp */ 2045 2046 void 2047 x11_setup_atoms(dpy) 2048 Display *dpy; 2049 { 2050 vim_atom = XInternAtom(dpy, VIM_ATOM_NAME, False); 2051 #ifdef FEAT_MBYTE 2052 vimenc_atom = XInternAtom(dpy, VIMENC_ATOM_NAME,False); 2053 utf8_atom = XInternAtom(dpy, "UTF8_STRING", False); 2054 #endif 2055 compound_text_atom = XInternAtom(dpy, "COMPOUND_TEXT", False); 2056 text_atom = XInternAtom(dpy, "TEXT", False); 2057 targets_atom = XInternAtom(dpy, "TARGETS", False); 2058 clip_star.sel_atom = XA_PRIMARY; 2059 clip_plus.sel_atom = XInternAtom(dpy, "CLIPBOARD", False); 2060 timestamp_atom = XInternAtom(dpy, "TIMESTAMP", False); 2061 } 2062 2063 /* 2064 * X Selection stuff, for cutting and pasting text to other windows. 2065 */ 2066 2067 static Boolean clip_x11_convert_selection_cb __ARGS((Widget, Atom *, Atom *, Atom *, XtPointer *, long_u *, int *)); 2068 static void clip_x11_lose_ownership_cb __ARGS((Widget, Atom *)); 2069 static void clip_x11_timestamp_cb __ARGS((Widget w, XtPointer n, XEvent *event, Boolean *cont)); 2070 static void clip_x11_request_selection_cb __ARGS((Widget, XtPointer, Atom *, Atom *, XtPointer, long_u *, int *)); 2071 2072 /* 2073 * Property callback to get a timestamp for XtOwnSelection. 2074 */ 2075 static void 2076 clip_x11_timestamp_cb(w, n, event, cont) 2077 Widget w; 2078 XtPointer n UNUSED; 2079 XEvent *event; 2080 Boolean *cont UNUSED; 2081 { 2082 Atom actual_type; 2083 int format; 2084 unsigned long nitems, bytes_after; 2085 unsigned char *prop=NULL; 2086 XPropertyEvent *xproperty=&event->xproperty; 2087 2088 /* Must be a property notify, state can't be Delete (True), has to be 2089 * one of the supported selection types. */ 2090 if (event->type != PropertyNotify || xproperty->state 2091 || (xproperty->atom != clip_star.sel_atom 2092 && xproperty->atom != clip_plus.sel_atom)) 2093 return; 2094 2095 if (XGetWindowProperty(xproperty->display, xproperty->window, 2096 xproperty->atom, 0, 0, False, timestamp_atom, &actual_type, &format, 2097 &nitems, &bytes_after, &prop)) 2098 return; 2099 2100 if (prop) 2101 XFree(prop); 2102 2103 /* Make sure the property type is "TIMESTAMP" and it's 32 bits. */ 2104 if (actual_type != timestamp_atom || format != 32) 2105 return; 2106 2107 /* Get the selection, using the event timestamp. */ 2108 if (XtOwnSelection(w, xproperty->atom, xproperty->time, 2109 clip_x11_convert_selection_cb, clip_x11_lose_ownership_cb, 2110 NULL) == OK) 2111 { 2112 /* Set the "owned" flag now, there may have been a call to 2113 * lose_ownership_cb in between. */ 2114 if (xproperty->atom == clip_plus.sel_atom) 2115 clip_plus.owned = TRUE; 2116 else 2117 clip_star.owned = TRUE; 2118 } 2119 } 2120 2121 void 2122 x11_setup_selection(w) 2123 Widget w; 2124 { 2125 XtAddEventHandler(w, PropertyChangeMask, False, 2126 /*(XtEventHandler)*/clip_x11_timestamp_cb, (XtPointer)NULL); 2127 } 2128 2129 static void 2130 clip_x11_request_selection_cb(w, success, sel_atom, type, value, length, 2131 format) 2132 Widget w UNUSED; 2133 XtPointer success; 2134 Atom *sel_atom; 2135 Atom *type; 2136 XtPointer value; 2137 long_u *length; 2138 int *format; 2139 { 2140 int motion_type = MAUTO; 2141 long_u len; 2142 char_u *p; 2143 char **text_list = NULL; 2144 VimClipboard *cbd; 2145 #ifdef FEAT_MBYTE 2146 char_u *tmpbuf = NULL; 2147 #endif 2148 2149 if (*sel_atom == clip_plus.sel_atom) 2150 cbd = &clip_plus; 2151 else 2152 cbd = &clip_star; 2153 2154 if (value == NULL || *length == 0) 2155 { 2156 clip_free_selection(cbd); /* nothing received, clear register */ 2157 *(int *)success = FALSE; 2158 return; 2159 } 2160 p = (char_u *)value; 2161 len = *length; 2162 if (*type == vim_atom) 2163 { 2164 motion_type = *p++; 2165 len--; 2166 } 2167 2168 #ifdef FEAT_MBYTE 2169 else if (*type == vimenc_atom) 2170 { 2171 char_u *enc; 2172 vimconv_T conv; 2173 int convlen; 2174 2175 motion_type = *p++; 2176 --len; 2177 2178 enc = p; 2179 p += STRLEN(p) + 1; 2180 len -= p - enc; 2181 2182 /* If the encoding of the text is different from 'encoding', attempt 2183 * converting it. */ 2184 conv.vc_type = CONV_NONE; 2185 convert_setup(&conv, enc, p_enc); 2186 if (conv.vc_type != CONV_NONE) 2187 { 2188 convlen = len; /* Need to use an int here. */ 2189 tmpbuf = string_convert(&conv, p, &convlen); 2190 len = convlen; 2191 if (tmpbuf != NULL) 2192 p = tmpbuf; 2193 convert_setup(&conv, NULL, NULL); 2194 } 2195 } 2196 #endif 2197 2198 else if (*type == compound_text_atom 2199 #ifdef FEAT_MBYTE 2200 || *type == utf8_atom 2201 #endif 2202 || ( 2203 #ifdef FEAT_MBYTE 2204 enc_dbcs != 0 && 2205 #endif 2206 *type == text_atom)) 2207 { 2208 XTextProperty text_prop; 2209 int n_text = 0; 2210 int status; 2211 2212 text_prop.value = (unsigned char *)value; 2213 text_prop.encoding = *type; 2214 text_prop.format = *format; 2215 text_prop.nitems = len; 2216 #if defined(FEAT_MBYTE) && defined(X_HAVE_UTF8_STRING) 2217 if (*type == utf8_atom) 2218 status = Xutf8TextPropertyToTextList(X_DISPLAY, &text_prop, 2219 &text_list, &n_text); 2220 else 2221 #endif 2222 status = XmbTextPropertyToTextList(X_DISPLAY, &text_prop, 2223 &text_list, &n_text); 2224 if (status != Success || n_text < 1) 2225 { 2226 *(int *)success = FALSE; 2227 return; 2228 } 2229 p = (char_u *)text_list[0]; 2230 len = STRLEN(p); 2231 } 2232 clip_yank_selection(motion_type, p, (long)len, cbd); 2233 2234 if (text_list != NULL) 2235 XFreeStringList(text_list); 2236 #ifdef FEAT_MBYTE 2237 vim_free(tmpbuf); 2238 #endif 2239 XtFree((char *)value); 2240 *(int *)success = TRUE; 2241 } 2242 2243 void 2244 clip_x11_request_selection(myShell, dpy, cbd) 2245 Widget myShell; 2246 Display *dpy; 2247 VimClipboard *cbd; 2248 { 2249 XEvent event; 2250 Atom type; 2251 static int success; 2252 int i; 2253 time_t start_time; 2254 int timed_out = FALSE; 2255 2256 for (i = 2257 #ifdef FEAT_MBYTE 2258 0 2259 #else 2260 1 2261 #endif 2262 ; i < 6; i++) 2263 { 2264 switch (i) 2265 { 2266 #ifdef FEAT_MBYTE 2267 case 0: type = vimenc_atom; break; 2268 #endif 2269 case 1: type = vim_atom; break; 2270 #ifdef FEAT_MBYTE 2271 case 2: type = utf8_atom; break; 2272 #endif 2273 case 3: type = compound_text_atom; break; 2274 case 4: type = text_atom; break; 2275 default: type = XA_STRING; 2276 } 2277 #ifdef FEAT_MBYTE 2278 if (type == utf8_atom 2279 # if defined(X_HAVE_UTF8_STRING) 2280 && !enc_utf8 2281 # endif 2282 ) 2283 /* Only request utf-8 when 'encoding' is utf8 and 2284 * Xutf8TextPropertyToTextList is available. */ 2285 continue; 2286 #endif 2287 success = MAYBE; 2288 XtGetSelectionValue(myShell, cbd->sel_atom, type, 2289 clip_x11_request_selection_cb, (XtPointer)&success, CurrentTime); 2290 2291 /* Make sure the request for the selection goes out before waiting for 2292 * a response. */ 2293 XFlush(dpy); 2294 2295 /* 2296 * Wait for result of selection request, otherwise if we type more 2297 * characters, then they will appear before the one that requested the 2298 * paste! Don't worry, we will catch up with any other events later. 2299 */ 2300 start_time = time(NULL); 2301 while (success == MAYBE) 2302 { 2303 if (XCheckTypedEvent(dpy, SelectionNotify, &event) 2304 || XCheckTypedEvent(dpy, SelectionRequest, &event) 2305 || XCheckTypedEvent(dpy, PropertyNotify, &event)) 2306 { 2307 /* This is where clip_x11_request_selection_cb() should be 2308 * called. It may actually happen a bit later, so we loop 2309 * until "success" changes. 2310 * We may get a SelectionRequest here and if we don't handle 2311 * it we hang. KDE klipper does this, for example. 2312 * We need to handle a PropertyNotify for large selections. */ 2313 XtDispatchEvent(&event); 2314 continue; 2315 } 2316 2317 /* Time out after 2 to 3 seconds to avoid that we hang when the 2318 * other process doesn't respond. Note that the SelectionNotify 2319 * event may still come later when the selection owner comes back 2320 * to life and the text gets inserted unexpectedly. Don't know 2321 * why that happens or how to avoid that :-(. */ 2322 if (time(NULL) > start_time + 2) 2323 { 2324 timed_out = TRUE; 2325 break; 2326 } 2327 2328 /* Do we need this? Probably not. */ 2329 XSync(dpy, False); 2330 2331 /* Wait for 1 msec to avoid that we eat up all CPU time. */ 2332 ui_delay(1L, TRUE); 2333 } 2334 2335 if (success == TRUE) 2336 return; 2337 2338 /* don't do a retry with another type after timing out, otherwise we 2339 * hang for 15 seconds. */ 2340 if (timed_out) 2341 break; 2342 } 2343 2344 /* Final fallback position - use the X CUT_BUFFER0 store */ 2345 yank_cut_buffer0(dpy, cbd); 2346 } 2347 2348 static Boolean 2349 clip_x11_convert_selection_cb(w, sel_atom, target, type, value, length, format) 2350 Widget w UNUSED; 2351 Atom *sel_atom; 2352 Atom *target; 2353 Atom *type; 2354 XtPointer *value; 2355 long_u *length; 2356 int *format; 2357 { 2358 char_u *string; 2359 char_u *result; 2360 int motion_type; 2361 VimClipboard *cbd; 2362 int i; 2363 2364 if (*sel_atom == clip_plus.sel_atom) 2365 cbd = &clip_plus; 2366 else 2367 cbd = &clip_star; 2368 2369 if (!cbd->owned) 2370 return False; /* Shouldn't ever happen */ 2371 2372 /* requestor wants to know what target types we support */ 2373 if (*target == targets_atom) 2374 { 2375 Atom *array; 2376 2377 if ((array = (Atom *)XtMalloc((unsigned)(sizeof(Atom) * 7))) == NULL) 2378 return False; 2379 *value = (XtPointer)array; 2380 i = 0; 2381 array[i++] = targets_atom; 2382 #ifdef FEAT_MBYTE 2383 array[i++] = vimenc_atom; 2384 #endif 2385 array[i++] = vim_atom; 2386 #ifdef FEAT_MBYTE 2387 if (enc_utf8) 2388 array[i++] = utf8_atom; 2389 #endif 2390 array[i++] = XA_STRING; 2391 array[i++] = text_atom; 2392 array[i++] = compound_text_atom; 2393 2394 *type = XA_ATOM; 2395 /* This used to be: *format = sizeof(Atom) * 8; but that caused 2396 * crashes on 64 bit machines. (Peter Derr) */ 2397 *format = 32; 2398 *length = i; 2399 return True; 2400 } 2401 2402 if ( *target != XA_STRING 2403 #ifdef FEAT_MBYTE 2404 && *target != vimenc_atom 2405 && (*target != utf8_atom || !enc_utf8) 2406 #endif 2407 && *target != vim_atom 2408 && *target != text_atom 2409 && *target != compound_text_atom) 2410 return False; 2411 2412 clip_get_selection(cbd); 2413 motion_type = clip_convert_selection(&string, length, cbd); 2414 if (motion_type < 0) 2415 return False; 2416 2417 /* For our own format, the first byte contains the motion type */ 2418 if (*target == vim_atom) 2419 (*length)++; 2420 2421 #ifdef FEAT_MBYTE 2422 /* Our own format with encoding: motion 'encoding' NUL text */ 2423 if (*target == vimenc_atom) 2424 *length += STRLEN(p_enc) + 2; 2425 #endif 2426 2427 *value = XtMalloc((Cardinal)*length); 2428 result = (char_u *)*value; 2429 if (result == NULL) 2430 { 2431 vim_free(string); 2432 return False; 2433 } 2434 2435 if (*target == XA_STRING 2436 #ifdef FEAT_MBYTE 2437 || (*target == utf8_atom && enc_utf8) 2438 #endif 2439 ) 2440 { 2441 mch_memmove(result, string, (size_t)(*length)); 2442 *type = *target; 2443 } 2444 else if (*target == compound_text_atom || *target == text_atom) 2445 { 2446 XTextProperty text_prop; 2447 char *string_nt = (char *)alloc((unsigned)*length + 1); 2448 int conv_result; 2449 2450 /* create NUL terminated string which XmbTextListToTextProperty wants */ 2451 mch_memmove(string_nt, string, (size_t)*length); 2452 string_nt[*length] = NUL; 2453 conv_result = XmbTextListToTextProperty(X_DISPLAY, (char **)&string_nt, 2454 1, XCompoundTextStyle, &text_prop); 2455 vim_free(string_nt); 2456 XtFree(*value); /* replace with COMPOUND text */ 2457 if (conv_result != Success) 2458 { 2459 vim_free(string); 2460 return False; 2461 } 2462 *value = (XtPointer)(text_prop.value); /* from plain text */ 2463 *length = text_prop.nitems; 2464 *type = compound_text_atom; 2465 } 2466 2467 #ifdef FEAT_MBYTE 2468 else if (*target == vimenc_atom) 2469 { 2470 int l = STRLEN(p_enc); 2471 2472 result[0] = motion_type; 2473 STRCPY(result + 1, p_enc); 2474 mch_memmove(result + l + 2, string, (size_t)(*length - l - 2)); 2475 *type = vimenc_atom; 2476 } 2477 #endif 2478 2479 else 2480 { 2481 result[0] = motion_type; 2482 mch_memmove(result + 1, string, (size_t)(*length - 1)); 2483 *type = vim_atom; 2484 } 2485 *format = 8; /* 8 bits per char */ 2486 vim_free(string); 2487 return True; 2488 } 2489 2490 static void 2491 clip_x11_lose_ownership_cb(w, sel_atom) 2492 Widget w UNUSED; 2493 Atom *sel_atom; 2494 { 2495 if (*sel_atom == clip_plus.sel_atom) 2496 clip_lose_selection(&clip_plus); 2497 else 2498 clip_lose_selection(&clip_star); 2499 } 2500 2501 void 2502 clip_x11_lose_selection(myShell, cbd) 2503 Widget myShell; 2504 VimClipboard *cbd; 2505 { 2506 XtDisownSelection(myShell, cbd->sel_atom, 2507 XtLastTimestampProcessed(XtDisplay(myShell))); 2508 } 2509 2510 int 2511 clip_x11_own_selection(myShell, cbd) 2512 Widget myShell; 2513 VimClipboard *cbd; 2514 { 2515 /* When using the GUI we have proper timestamps, use the one of the last 2516 * event. When in the console we don't get events (the terminal gets 2517 * them), Get the time by a zero-length append, clip_x11_timestamp_cb will 2518 * be called with the current timestamp. */ 2519 #ifdef FEAT_GUI 2520 if (gui.in_use) 2521 { 2522 if (XtOwnSelection(myShell, cbd->sel_atom, 2523 XtLastTimestampProcessed(XtDisplay(myShell)), 2524 clip_x11_convert_selection_cb, clip_x11_lose_ownership_cb, 2525 NULL) == False) 2526 return FAIL; 2527 } 2528 else 2529 #endif 2530 { 2531 if (!XChangeProperty(XtDisplay(myShell), XtWindow(myShell), 2532 cbd->sel_atom, timestamp_atom, 32, PropModeAppend, NULL, 0)) 2533 return FAIL; 2534 } 2535 /* Flush is required in a terminal as nothing else is doing it. */ 2536 XFlush(XtDisplay(myShell)); 2537 return OK; 2538 } 2539 2540 /* 2541 * Send the current selection to the clipboard. Do nothing for X because we 2542 * will fill in the selection only when requested by another app. 2543 */ 2544 void 2545 clip_x11_set_selection(cbd) 2546 VimClipboard *cbd UNUSED; 2547 { 2548 } 2549 2550 int 2551 clip_x11_owner_exists(cbd) 2552 VimClipboard *cbd; 2553 { 2554 return XGetSelectionOwner(X_DISPLAY, cbd->sel_atom) != None; 2555 } 2556 #endif 2557 2558 #if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) \ 2559 || defined(FEAT_GUI_GTK) || defined(PROTO) 2560 /* 2561 * Get the contents of the X CUT_BUFFER0 and put it in "cbd". 2562 */ 2563 void 2564 yank_cut_buffer0(dpy, cbd) 2565 Display *dpy; 2566 VimClipboard *cbd; 2567 { 2568 int nbytes = 0; 2569 char_u *buffer = (char_u *)XFetchBuffer(dpy, &nbytes, 0); 2570 2571 if (nbytes > 0) 2572 { 2573 #ifdef FEAT_MBYTE 2574 int done = FALSE; 2575 2576 /* CUT_BUFFER0 is supposed to be always latin1. Convert to 'enc' when 2577 * using a multi-byte encoding. Conversion between two 8-bit 2578 * character sets usually fails and the text might actually be in 2579 * 'enc' anyway. */ 2580 if (has_mbyte) 2581 { 2582 char_u *conv_buf; 2583 vimconv_T vc; 2584 2585 vc.vc_type = CONV_NONE; 2586 if (convert_setup(&vc, (char_u *)"latin1", p_enc) == OK) 2587 { 2588 conv_buf = string_convert(&vc, buffer, &nbytes); 2589 if (conv_buf != NULL) 2590 { 2591 clip_yank_selection(MCHAR, conv_buf, (long)nbytes, cbd); 2592 vim_free(conv_buf); 2593 done = TRUE; 2594 } 2595 convert_setup(&vc, NULL, NULL); 2596 } 2597 } 2598 if (!done) /* use the text without conversion */ 2599 #endif 2600 clip_yank_selection(MCHAR, buffer, (long)nbytes, cbd); 2601 XFree((void *)buffer); 2602 if (p_verbose > 0) 2603 { 2604 verbose_enter(); 2605 verb_msg((char_u *)_("Used CUT_BUFFER0 instead of empty selection")); 2606 verbose_leave(); 2607 } 2608 } 2609 } 2610 #endif 2611 2612 #if defined(FEAT_MOUSE) || defined(PROTO) 2613 2614 /* 2615 * Move the cursor to the specified row and column on the screen. 2616 * Change current window if necessary. Returns an integer with the 2617 * CURSOR_MOVED bit set if the cursor has moved or unset otherwise. 2618 * 2619 * The MOUSE_FOLD_CLOSE bit is set when clicked on the '-' in a fold column. 2620 * The MOUSE_FOLD_OPEN bit is set when clicked on the '+' in a fold column. 2621 * 2622 * If flags has MOUSE_FOCUS, then the current window will not be changed, and 2623 * if the mouse is outside the window then the text will scroll, or if the 2624 * mouse was previously on a status line, then the status line may be dragged. 2625 * 2626 * If flags has MOUSE_MAY_VIS, then VIsual mode will be started before the 2627 * cursor is moved unless the cursor was on a status line. 2628 * This function returns one of IN_UNKNOWN, IN_BUFFER, IN_STATUS_LINE or 2629 * IN_SEP_LINE depending on where the cursor was clicked. 2630 * 2631 * If flags has MOUSE_MAY_STOP_VIS, then Visual mode will be stopped, unless 2632 * the mouse is on the status line of the same window. 2633 * 2634 * If flags has MOUSE_DID_MOVE, nothing is done if the mouse didn't move since 2635 * the last call. 2636 * 2637 * If flags has MOUSE_SETPOS, nothing is done, only the current position is 2638 * remembered. 2639 */ 2640 int 2641 jump_to_mouse(flags, inclusive, which_button) 2642 int flags; 2643 int *inclusive; /* used for inclusive operator, can be NULL */ 2644 int which_button; /* MOUSE_LEFT, MOUSE_RIGHT, MOUSE_MIDDLE */ 2645 { 2646 static int on_status_line = 0; /* #lines below bottom of window */ 2647 #ifdef FEAT_VERTSPLIT 2648 static int on_sep_line = 0; /* on separator right of window */ 2649 #endif 2650 static int prev_row = -1; 2651 static int prev_col = -1; 2652 static win_T *dragwin = NULL; /* window being dragged */ 2653 static int did_drag = FALSE; /* drag was noticed */ 2654 2655 win_T *wp, *old_curwin; 2656 pos_T old_cursor; 2657 int count; 2658 int first; 2659 int row = mouse_row; 2660 int col = mouse_col; 2661 #ifdef FEAT_FOLDING 2662 int mouse_char; 2663 #endif 2664 2665 mouse_past_bottom = FALSE; 2666 mouse_past_eol = FALSE; 2667 2668 if (flags & MOUSE_RELEASED) 2669 { 2670 /* On button release we may change window focus if positioned on a 2671 * status line and no dragging happened. */ 2672 if (dragwin != NULL && !did_drag) 2673 flags &= ~(MOUSE_FOCUS | MOUSE_DID_MOVE); 2674 dragwin = NULL; 2675 did_drag = FALSE; 2676 } 2677 2678 if ((flags & MOUSE_DID_MOVE) 2679 && prev_row == mouse_row 2680 && prev_col == mouse_col) 2681 { 2682 retnomove: 2683 /* before moving the cursor for a left click which is NOT in a status 2684 * line, stop Visual mode */ 2685 if (on_status_line) 2686 return IN_STATUS_LINE; 2687 #ifdef FEAT_VERTSPLIT 2688 if (on_sep_line) 2689 return IN_SEP_LINE; 2690 #endif 2691 if (flags & MOUSE_MAY_STOP_VIS) 2692 { 2693 end_visual_mode(); 2694 redraw_curbuf_later(INVERTED); /* delete the inversion */ 2695 } 2696 #if defined(FEAT_CMDWIN) && defined(FEAT_CLIPBOARD) 2697 /* Continue a modeless selection in another window. */ 2698 if (cmdwin_type != 0 && row < W_WINROW(curwin)) 2699 return IN_OTHER_WIN; 2700 #endif 2701 return IN_BUFFER; 2702 } 2703 2704 prev_row = mouse_row; 2705 prev_col = mouse_col; 2706 2707 if (flags & MOUSE_SETPOS) 2708 goto retnomove; /* ugly goto... */ 2709 2710 #ifdef FEAT_FOLDING 2711 /* Remember the character under the mouse, it might be a '-' or '+' in the 2712 * fold column. */ 2713 if (row >= 0 && row < Rows && col >= 0 && col <= Columns 2714 && ScreenLines != NULL) 2715 mouse_char = ScreenLines[LineOffset[row] + col]; 2716 else 2717 mouse_char = ' '; 2718 #endif 2719 2720 old_curwin = curwin; 2721 old_cursor = curwin->w_cursor; 2722 2723 if (!(flags & MOUSE_FOCUS)) 2724 { 2725 if (row < 0 || col < 0) /* check if it makes sense */ 2726 return IN_UNKNOWN; 2727 2728 #ifdef FEAT_WINDOWS 2729 /* find the window where the row is in */ 2730 wp = mouse_find_win(&row, &col); 2731 #else 2732 wp = firstwin; 2733 #endif 2734 dragwin = NULL; 2735 /* 2736 * winpos and height may change in win_enter()! 2737 */ 2738 if (row >= wp->w_height) /* In (or below) status line */ 2739 { 2740 on_status_line = row - wp->w_height + 1; 2741 dragwin = wp; 2742 } 2743 else 2744 on_status_line = 0; 2745 #ifdef FEAT_VERTSPLIT 2746 if (col >= wp->w_width) /* In separator line */ 2747 { 2748 on_sep_line = col - wp->w_width + 1; 2749 dragwin = wp; 2750 } 2751 else 2752 on_sep_line = 0; 2753 2754 /* The rightmost character of the status line might be a vertical 2755 * separator character if there is no connecting window to the right. */ 2756 if (on_status_line && on_sep_line) 2757 { 2758 if (stl_connected(wp)) 2759 on_sep_line = 0; 2760 else 2761 on_status_line = 0; 2762 } 2763 #endif 2764 2765 /* Before jumping to another buffer, or moving the cursor for a left 2766 * click, stop Visual mode. */ 2767 if (VIsual_active 2768 && (wp->w_buffer != curwin->w_buffer 2769 || (!on_status_line 2770 #ifdef FEAT_VERTSPLIT 2771 && !on_sep_line 2772 #endif 2773 #ifdef FEAT_FOLDING 2774 && ( 2775 # ifdef FEAT_RIGHTLEFT 2776 wp->w_p_rl ? col < W_WIDTH(wp) - wp->w_p_fdc : 2777 # endif 2778 col >= wp->w_p_fdc 2779 # ifdef FEAT_CMDWIN 2780 + (cmdwin_type == 0 && wp == curwin ? 0 : 1) 2781 # endif 2782 ) 2783 #endif 2784 && (flags & MOUSE_MAY_STOP_VIS)))) 2785 { 2786 end_visual_mode(); 2787 redraw_curbuf_later(INVERTED); /* delete the inversion */ 2788 } 2789 #ifdef FEAT_CMDWIN 2790 if (cmdwin_type != 0 && wp != curwin) 2791 { 2792 /* A click outside the command-line window: Use modeless 2793 * selection if possible. Allow dragging the status lines. */ 2794 # ifdef FEAT_VERTSPLIT 2795 on_sep_line = 0; 2796 # endif 2797 # ifdef FEAT_CLIPBOARD 2798 if (on_status_line) 2799 return IN_STATUS_LINE; 2800 return IN_OTHER_WIN; 2801 # else 2802 row = 0; 2803 col += wp->w_wincol; 2804 wp = curwin; 2805 # endif 2806 } 2807 #endif 2808 #ifdef FEAT_WINDOWS 2809 /* Only change window focus when not clicking on or dragging the 2810 * status line. Do change focus when releasing the mouse button 2811 * (MOUSE_FOCUS was set above if we dragged first). */ 2812 if (dragwin == NULL || (flags & MOUSE_RELEASED)) 2813 win_enter(wp, TRUE); /* can make wp invalid! */ 2814 # ifdef CHECK_DOUBLE_CLICK 2815 /* set topline, to be able to check for double click ourselves */ 2816 if (curwin != old_curwin) 2817 set_mouse_topline(curwin); 2818 # endif 2819 #endif 2820 if (on_status_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_STATUS_LINE; 2825 else 2826 return IN_STATUS_LINE | CURSOR_MOVED; 2827 } 2828 #ifdef FEAT_VERTSPLIT 2829 if (on_sep_line) /* In (or below) status line */ 2830 { 2831 /* Don't use start_arrow() if we're in the same window */ 2832 if (curwin == old_curwin) 2833 return IN_SEP_LINE; 2834 else 2835 return IN_SEP_LINE | CURSOR_MOVED; 2836 } 2837 #endif 2838 2839 curwin->w_cursor.lnum = curwin->w_topline; 2840 #ifdef FEAT_GUI 2841 /* remember topline, needed for double click */ 2842 gui_prev_topline = curwin->w_topline; 2843 # ifdef FEAT_DIFF 2844 gui_prev_topfill = curwin->w_topfill; 2845 # endif 2846 #endif 2847 } 2848 else if (on_status_line && which_button == MOUSE_LEFT) 2849 { 2850 #ifdef FEAT_WINDOWS 2851 if (dragwin != NULL) 2852 { 2853 /* Drag the status line */ 2854 count = row - dragwin->w_winrow - dragwin->w_height + 1 2855 - on_status_line; 2856 win_drag_status_line(dragwin, count); 2857 did_drag |= count; 2858 } 2859 #endif 2860 return IN_STATUS_LINE; /* Cursor didn't move */ 2861 } 2862 #ifdef FEAT_VERTSPLIT 2863 else if (on_sep_line && which_button == MOUSE_LEFT) 2864 { 2865 if (dragwin != NULL) 2866 { 2867 /* Drag the separator column */ 2868 count = col - dragwin->w_wincol - dragwin->w_width + 1 2869 - on_sep_line; 2870 win_drag_vsep_line(dragwin, count); 2871 did_drag |= count; 2872 } 2873 return IN_SEP_LINE; /* Cursor didn't move */ 2874 } 2875 #endif 2876 else /* keep_window_focus must be TRUE */ 2877 { 2878 /* before moving the cursor for a left click, stop Visual mode */ 2879 if (flags & MOUSE_MAY_STOP_VIS) 2880 { 2881 end_visual_mode(); 2882 redraw_curbuf_later(INVERTED); /* delete the inversion */ 2883 } 2884 2885 #if defined(FEAT_CMDWIN) && defined(FEAT_CLIPBOARD) 2886 /* Continue a modeless selection in another window. */ 2887 if (cmdwin_type != 0 && row < W_WINROW(curwin)) 2888 return IN_OTHER_WIN; 2889 #endif 2890 2891 row -= W_WINROW(curwin); 2892 #ifdef FEAT_VERTSPLIT 2893 col -= W_WINCOL(curwin); 2894 #endif 2895 2896 /* 2897 * When clicking beyond the end of the window, scroll the screen. 2898 * Scroll by however many rows outside the window we are. 2899 */ 2900 if (row < 0) 2901 { 2902 count = 0; 2903 for (first = TRUE; curwin->w_topline > 1; ) 2904 { 2905 #ifdef FEAT_DIFF 2906 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)) 2907 ++count; 2908 else 2909 #endif 2910 count += plines(curwin->w_topline - 1); 2911 if (!first && count > -row) 2912 break; 2913 first = FALSE; 2914 #ifdef FEAT_FOLDING 2915 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); 2916 #endif 2917 #ifdef FEAT_DIFF 2918 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)) 2919 ++curwin->w_topfill; 2920 else 2921 #endif 2922 { 2923 --curwin->w_topline; 2924 #ifdef FEAT_DIFF 2925 curwin->w_topfill = 0; 2926 #endif 2927 } 2928 } 2929 #ifdef FEAT_DIFF 2930 check_topfill(curwin, FALSE); 2931 #endif 2932 curwin->w_valid &= 2933 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); 2934 redraw_later(VALID); 2935 row = 0; 2936 } 2937 else if (row >= curwin->w_height) 2938 { 2939 count = 0; 2940 for (first = TRUE; curwin->w_topline < curbuf->b_ml.ml_line_count; ) 2941 { 2942 #ifdef FEAT_DIFF 2943 if (curwin->w_topfill > 0) 2944 ++count; 2945 else 2946 #endif 2947 count += plines(curwin->w_topline); 2948 if (!first && count > row - curwin->w_height + 1) 2949 break; 2950 first = FALSE; 2951 #ifdef FEAT_FOLDING 2952 if (hasFolding(curwin->w_topline, NULL, &curwin->w_topline) 2953 && curwin->w_topline == curbuf->b_ml.ml_line_count) 2954 break; 2955 #endif 2956 #ifdef FEAT_DIFF 2957 if (curwin->w_topfill > 0) 2958 --curwin->w_topfill; 2959 else 2960 #endif 2961 { 2962 ++curwin->w_topline; 2963 #ifdef FEAT_DIFF 2964 curwin->w_topfill = 2965 diff_check_fill(curwin, curwin->w_topline); 2966 #endif 2967 } 2968 } 2969 #ifdef FEAT_DIFF 2970 check_topfill(curwin, FALSE); 2971 #endif 2972 redraw_later(VALID); 2973 curwin->w_valid &= 2974 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); 2975 row = curwin->w_height - 1; 2976 } 2977 else if (row == 0) 2978 { 2979 /* When dragging the mouse, while the text has been scrolled up as 2980 * far as it goes, moving the mouse in the top line should scroll 2981 * the text down (done later when recomputing w_topline). */ 2982 if (mouse_dragging > 0 2983 && curwin->w_cursor.lnum 2984 == curwin->w_buffer->b_ml.ml_line_count 2985 && curwin->w_cursor.lnum == curwin->w_topline) 2986 curwin->w_valid &= ~(VALID_TOPLINE); 2987 } 2988 } 2989 2990 #ifdef FEAT_FOLDING 2991 /* Check for position outside of the fold column. */ 2992 if ( 2993 # ifdef FEAT_RIGHTLEFT 2994 curwin->w_p_rl ? col < W_WIDTH(curwin) - curwin->w_p_fdc : 2995 # endif 2996 col >= curwin->w_p_fdc 2997 # ifdef FEAT_CMDWIN 2998 + (cmdwin_type == 0 ? 0 : 1) 2999 # endif 3000 ) 3001 mouse_char = ' '; 3002 #endif 3003 3004 /* compute the position in the buffer line from the posn on the screen */ 3005 if (mouse_comp_pos(curwin, &row, &col, &curwin->w_cursor.lnum)) 3006 mouse_past_bottom = TRUE; 3007 3008 /* Start Visual mode before coladvance(), for when 'sel' != "old" */ 3009 if ((flags & MOUSE_MAY_VIS) && !VIsual_active) 3010 { 3011 check_visual_highlight(); 3012 VIsual = old_cursor; 3013 VIsual_active = TRUE; 3014 VIsual_reselect = TRUE; 3015 /* if 'selectmode' contains "mouse", start Select mode */ 3016 may_start_select('o'); 3017 setmouse(); 3018 if (p_smd && msg_silent == 0) 3019 redraw_cmdline = TRUE; /* show visual mode later */ 3020 } 3021 3022 curwin->w_curswant = col; 3023 curwin->w_set_curswant = FALSE; /* May still have been TRUE */ 3024 if (coladvance(col) == FAIL) /* Mouse click beyond end of line */ 3025 { 3026 if (inclusive != NULL) 3027 *inclusive = TRUE; 3028 mouse_past_eol = TRUE; 3029 } 3030 else if (inclusive != NULL) 3031 *inclusive = FALSE; 3032 3033 count = IN_BUFFER; 3034 if (curwin != old_curwin || curwin->w_cursor.lnum != old_cursor.lnum 3035 || curwin->w_cursor.col != old_cursor.col) 3036 count |= CURSOR_MOVED; /* Cursor has moved */ 3037 3038 #ifdef FEAT_FOLDING 3039 if (mouse_char == '+') 3040 count |= MOUSE_FOLD_OPEN; 3041 else if (mouse_char != ' ') 3042 count |= MOUSE_FOLD_CLOSE; 3043 #endif 3044 3045 return count; 3046 } 3047 3048 /* 3049 * Compute the position in the buffer line from the posn on the screen in 3050 * window "win". 3051 * Returns TRUE if the position is below the last line. 3052 */ 3053 int 3054 mouse_comp_pos(win, rowp, colp, lnump) 3055 win_T *win; 3056 int *rowp; 3057 int *colp; 3058 linenr_T *lnump; 3059 { 3060 int col = *colp; 3061 int row = *rowp; 3062 linenr_T lnum; 3063 int retval = FALSE; 3064 int off; 3065 int count; 3066 3067 #ifdef FEAT_RIGHTLEFT 3068 if (win->w_p_rl) 3069 col = W_WIDTH(win) - 1 - col; 3070 #endif 3071 3072 lnum = win->w_topline; 3073 3074 while (row > 0) 3075 { 3076 #ifdef FEAT_DIFF 3077 /* Don't include filler lines in "count" */ 3078 if (win->w_p_diff 3079 # ifdef FEAT_FOLDING 3080 && !hasFoldingWin(win, lnum, NULL, NULL, TRUE, NULL) 3081 # endif 3082 ) 3083 { 3084 if (lnum == win->w_topline) 3085 row -= win->w_topfill; 3086 else 3087 row -= diff_check_fill(win, lnum); 3088 count = plines_win_nofill(win, lnum, TRUE); 3089 } 3090 else 3091 #endif 3092 count = plines_win(win, lnum, TRUE); 3093 if (count > row) 3094 break; /* Position is in this buffer line. */ 3095 #ifdef FEAT_FOLDING 3096 (void)hasFoldingWin(win, lnum, NULL, &lnum, TRUE, NULL); 3097 #endif 3098 if (lnum == win->w_buffer->b_ml.ml_line_count) 3099 { 3100 retval = TRUE; 3101 break; /* past end of file */ 3102 } 3103 row -= count; 3104 ++lnum; 3105 } 3106 3107 if (!retval) 3108 { 3109 /* Compute the column without wrapping. */ 3110 off = win_col_off(win) - win_col_off2(win); 3111 if (col < off) 3112 col = off; 3113 col += row * (W_WIDTH(win) - off); 3114 /* add skip column (for long wrapping line) */ 3115 col += win->w_skipcol; 3116 } 3117 3118 if (!win->w_p_wrap) 3119 col += win->w_leftcol; 3120 3121 /* skip line number and fold column in front of the line */ 3122 col -= win_col_off(win); 3123 if (col < 0) 3124 { 3125 #ifdef FEAT_NETBEANS_INTG 3126 netbeans_gutter_click(lnum); 3127 #endif 3128 col = 0; 3129 } 3130 3131 *colp = col; 3132 *rowp = row; 3133 *lnump = lnum; 3134 return retval; 3135 } 3136 3137 #if defined(FEAT_WINDOWS) || defined(PROTO) 3138 /* 3139 * Find the window at screen position "*rowp" and "*colp". The positions are 3140 * updated to become relative to the top-left of the window. 3141 */ 3142 win_T * 3143 mouse_find_win(rowp, colp) 3144 int *rowp; 3145 int *colp UNUSED; 3146 { 3147 frame_T *fp; 3148 3149 fp = topframe; 3150 *rowp -= firstwin->w_winrow; 3151 for (;;) 3152 { 3153 if (fp->fr_layout == FR_LEAF) 3154 break; 3155 #ifdef FEAT_VERTSPLIT 3156 if (fp->fr_layout == FR_ROW) 3157 { 3158 for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 3159 { 3160 if (*colp < fp->fr_width) 3161 break; 3162 *colp -= fp->fr_width; 3163 } 3164 } 3165 #endif 3166 else /* fr_layout == FR_COL */ 3167 { 3168 for (fp = fp->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 3169 { 3170 if (*rowp < fp->fr_height) 3171 break; 3172 *rowp -= fp->fr_height; 3173 } 3174 } 3175 } 3176 return fp->fr_win; 3177 } 3178 #endif 3179 3180 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MAC) \ 3181 || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \ 3182 || defined(FEAT_GUI_PHOTON) || defined(PROTO) 3183 /* 3184 * Translate window coordinates to buffer position without any side effects 3185 */ 3186 int 3187 get_fpos_of_mouse(mpos) 3188 pos_T *mpos; 3189 { 3190 win_T *wp; 3191 int row = mouse_row; 3192 int col = mouse_col; 3193 3194 if (row < 0 || col < 0) /* check if it makes sense */ 3195 return IN_UNKNOWN; 3196 3197 #ifdef FEAT_WINDOWS 3198 /* find the window where the row is in */ 3199 wp = mouse_find_win(&row, &col); 3200 #else 3201 wp = firstwin; 3202 #endif 3203 /* 3204 * winpos and height may change in win_enter()! 3205 */ 3206 if (row >= wp->w_height) /* In (or below) status line */ 3207 return IN_STATUS_LINE; 3208 #ifdef FEAT_VERTSPLIT 3209 if (col >= wp->w_width) /* In vertical separator line */ 3210 return IN_SEP_LINE; 3211 #endif 3212 3213 if (wp != curwin) 3214 return IN_UNKNOWN; 3215 3216 /* compute the position in the buffer line from the posn on the screen */ 3217 if (mouse_comp_pos(curwin, &row, &col, &mpos->lnum)) 3218 return IN_STATUS_LINE; /* past bottom */ 3219 3220 mpos->col = vcol2col(wp, mpos->lnum, col); 3221 3222 if (mpos->col > 0) 3223 --mpos->col; 3224 #ifdef FEAT_VIRTUALEDIT 3225 mpos->coladd = 0; 3226 #endif 3227 return IN_BUFFER; 3228 } 3229 3230 /* 3231 * Convert a virtual (screen) column to a character column. 3232 * The first column is one. 3233 */ 3234 int 3235 vcol2col(wp, lnum, vcol) 3236 win_T *wp; 3237 linenr_T lnum; 3238 int vcol; 3239 { 3240 /* try to advance to the specified column */ 3241 int count = 0; 3242 char_u *ptr; 3243 char_u *line; 3244 3245 line = ptr = ml_get_buf(wp->w_buffer, lnum, FALSE); 3246 while (count < vcol && *ptr != NUL) 3247 { 3248 count += win_lbr_chartabsize(wp, line, ptr, count, NULL); 3249 mb_ptr_adv(ptr); 3250 } 3251 return (int)(ptr - line); 3252 } 3253 #endif 3254 3255 #endif /* FEAT_MOUSE */ 3256 3257 #if defined(FEAT_GUI) || defined(WIN3264) || defined(PROTO) 3258 /* 3259 * Called when focus changed. Used for the GUI or for systems where this can 3260 * be done in the console (Win32). 3261 */ 3262 void 3263 ui_focus_change(in_focus) 3264 int in_focus; /* TRUE if focus gained. */ 3265 { 3266 static time_t last_time = (time_t)0; 3267 int need_redraw = FALSE; 3268 3269 /* When activated: Check if any file was modified outside of Vim. 3270 * Only do this when not done within the last two seconds (could get 3271 * several events in a row). */ 3272 if (in_focus && last_time + 2 < time(NULL)) 3273 { 3274 need_redraw = check_timestamps( 3275 # ifdef FEAT_GUI 3276 gui.in_use 3277 # else 3278 FALSE 3279 # endif 3280 ); 3281 last_time = time(NULL); 3282 } 3283 3284 #ifdef FEAT_AUTOCMD 3285 /* 3286 * Fire the focus gained/lost autocommand. 3287 */ 3288 need_redraw |= apply_autocmds(in_focus ? EVENT_FOCUSGAINED 3289 : EVENT_FOCUSLOST, NULL, NULL, FALSE, curbuf); 3290 #endif 3291 3292 if (need_redraw) 3293 { 3294 /* Something was executed, make sure the cursor is put back where it 3295 * belongs. */ 3296 need_wait_return = FALSE; 3297 3298 if (State & CMDLINE) 3299 redrawcmdline(); 3300 else if (State == HITRETURN || State == SETWSIZE || State == ASKMORE 3301 || State == EXTERNCMD || State == CONFIRM || exmode_active) 3302 repeat_message(); 3303 else if ((State & NORMAL) || (State & INSERT)) 3304 { 3305 if (must_redraw != 0) 3306 update_screen(0); 3307 setcursor(); 3308 } 3309 cursor_on(); /* redrawing may have switched it off */ 3310 out_flush(); 3311 # ifdef FEAT_GUI 3312 if (gui.in_use) 3313 { 3314 gui_update_cursor(FALSE, TRUE); 3315 gui_update_scrollbars(FALSE); 3316 } 3317 # endif 3318 } 3319 #ifdef FEAT_TITLE 3320 /* File may have been changed from 'readonly' to 'noreadonly' */ 3321 if (need_maketitle) 3322 maketitle(); 3323 #endif 3324 } 3325 #endif 3326 3327 #if defined(USE_IM_CONTROL) || defined(PROTO) 3328 /* 3329 * Save current Input Method status to specified place. 3330 */ 3331 void 3332 im_save_status(psave) 3333 long *psave; 3334 { 3335 /* Don't save when 'imdisable' is set or "xic" is NULL, IM is always 3336 * disabled then (but might start later). 3337 * Also don't save when inside a mapping, vgetc_im_active has not been set 3338 * then. 3339 * And don't save when the keys were stuffed (e.g., for a "." command). 3340 * And don't save when the GUI is running but our window doesn't have 3341 * input focus (e.g., when a find dialog is open). */ 3342 if (!p_imdisable && KeyTyped && !KeyStuffed 3343 # ifdef FEAT_XIM 3344 && xic != NULL 3345 # endif 3346 # ifdef FEAT_GUI 3347 && (!gui.in_use || gui.in_focus) 3348 # endif 3349 ) 3350 { 3351 /* Do save when IM is on, or IM is off and saved status is on. */ 3352 if (vgetc_im_active) 3353 *psave = B_IMODE_IM; 3354 else if (*psave == B_IMODE_IM) 3355 *psave = B_IMODE_NONE; 3356 } 3357 } 3358 #endif 3359