ui.c

   1
   2 /*
   3  * $Id$
   4  *
   5  * by JH <jheinonen@users.sourceforge.net>
   6  *
   7  * Copyright (C) Jaakko Heinonen
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <unistd.h>
  14 #include <fcntl.h>
  15 #include <signal.h>
  16 #include <ctype.h>
  17 #include "abook.h"
  18 #include "ui.h"
  19 #include "edit.h"
  20 #include "database.h"
  21 #include "list.h"
  22 #include "misc.h"
  23 #include "options.h"
  24 #include "filter.h"
  25 #ifdef HAVE_CONFIG_H
  26 #       include "config.h"
  27 #endif
  28 #ifdef HAVE_TERMIOS_H
  29 #       include <termios.h>
  30 #else
  31 #       ifdef HAVE_LINUX_TERMIOS_H
  32 #               include <linux/termios.h>
  33 #       endif
  34 #endif
  35 #ifdef HAVE_SYS_IOCTL_H
  36 #       include <sys/ioctl.h>
  37 #endif
  38
  39 #include "abook_rl.h"
  40
  41 /*
  42  * external variables
  43  */
  44
  45 extern int items, curitem;
  46 extern char *datafile;
  47
  48 extern bool alternative_datafile;
  49
  50 /*
  51  * internal variables
  52  */
  53
  54 bool ui_initialized = FALSE;
  55
  56 bool should_resize = FALSE;
  57 bool can_resize = FALSE;
  58
  59 WINDOW *top = NULL, *bottom = NULL;
  60
  61
  62 static void
  63 init_windows()
  64 {
  65         top = newwin(LIST_TOP - 1, COLS, 0, 0);
  66
  67         bottom = newwin(LINES - LIST_BOTTOM, COLS, LIST_BOTTOM, 0);
  68 }
  69
  70 static void
  71 free_windows()
  72 {
  73         delwin(top);
  74         delwin(bottom);
  75 }
  76
  77
  78 #ifdef SIGWINCH
  79 static void
  80 resize_abook()
  81 {
  82 #ifdef TIOCGWINSZ
  83         struct winsize winsz;
  84
  85         ioctl(0, TIOCGWINSZ, &winsz);
  86 #ifdef DEBUG
  87         if(winsz.ws_col >= MIN_COLS && winsz.ws_row >= MIN_LINES) {
  88                 fprintf(stderr, "Warning: COLS=%d, LINES=%d\n", winsz.ws_col, winsz.ws_row);
  89         }
  90 #endif
  91
  92         if(winsz.ws_col >= MIN_COLS && winsz.ws_row >= MIN_LINES) {
  93 #ifdef HAVE_RESIZETERM
  94                 resizeterm(winsz.ws_row, winsz.ws_col);
  95 #else
  96                 COLS = winsz.ws_col;
  97                 LINES = winsz.ws_row;
  98 #endif
  99         }
 100
 101         should_resize = FALSE;
 102         close_list(); /* we need to recreate windows */
 103         init_list();
 104         free_windows();
 105         init_windows();
 106         refresh_screen();
 107         refresh();
 108 #endif /* TIOCGWINSZ */
 109 }
 110
 111
 112 static void
 113 win_changed(int i)
 114 {
 115         if( can_resize )
 116                 resize_abook();
 117         else
 118                 should_resize = TRUE;
 119 }
 120 #endif /* SIGWINCH */
 121
 122
 123 int
 124 is_ui_initialized()
 125 {
 126         return ui_initialized;
 127 }
 128
 129 void
 130 ui_init_curses()
 131 {
 132         if(!is_ui_initialized())
 133                 initscr();
 134         cbreak();
 135         noecho();
 136         nonl();
 137         intrflush(stdscr, FALSE);
 138         keypad(stdscr, TRUE);
 139 }
 140
 141 int
 142 init_ui()
 143 {
 144         ui_init_curses();
 145 #ifdef DEBUG
 146         fprintf(stderr, "init_abook():\n");
 147         fprintf(stderr, "  COLS = %d, LINES = %d\n", COLS, LINES);
 148 #endif
 149         if( LINES < MIN_LINES || COLS < MIN_COLS ) {
 150                 clear(); refresh(); endwin();
 151                 fprintf(stderr, "Your terminal size is %dx%d\n", COLS, LINES);
 152                 fprintf(stderr, "Terminal is too small. Minium terminal size "
 153                                 "for abook is "
 154                                 "%dx%d\n", MIN_COLS, MIN_LINES);
 155                 return 1;
 156         }
 157
 158 #ifdef SIGWINCH
 159         signal(SIGWINCH, win_changed);
 160 #endif
 161
 162         init_list();
 163         init_windows();
 164
 165         ui_initialized = TRUE;
 166
 167         return 0;
 168 }
 169
 170 void
 171 close_ui()
 172 {
 173         close_list();
 174         free_windows();
 175         clear();
 176         refresh();
 177         endwin();
 178
 179         ui_initialized = FALSE;
 180 }
 181
 182
 183 void
 184 headerline(char *str)
 185 {
 186         werase(top);
 187
 188         mvwhline(top, 1, 0, UI_HLINE_CHAR, COLS);
 189
 190         mvwprintw(top, 0, 0, "%s | %s", PACKAGE " " VERSION, str);
 191
 192         refresh();
 193         wrefresh(top);
 194 }
 195
 196
 197 void
 198 refresh_screen()
 199 {
 200 #ifdef SIGWINCH
 201         if( should_resize ) {
 202                 resize_abook();
 203                 return;
 204         }
 205 #endif
 206         clear();
 207
 208         refresh_statusline();
 209         headerline(MAIN_HELPLINE);
 210         list_headerline();
 211
 212         refresh_list();
 213 }
 214
 215
 216 int
 217 statusline_msg(char *msg)
 218 {
 219         int c;
 220
 221         clear_statusline();
 222         statusline_addstr(msg);
 223         c = getch();
 224 #ifdef DEBUG
 225         fprintf(stderr, "statusline_msg(\"%s\")\n", msg);
 226 #endif
 227         clear_statusline();
 228
 229         return c;
 230 }
 231
 232 void
 233 statusline_addstr(char *str)
 234 {
 235         mvwaddstr(bottom, 1, 0, str);
 236         refresh();
 237         wrefresh(bottom);
 238 }
 239
 240 char *
 241 ui_readline(char *prompt, char *s, int limit, bool use_completion)
 242 {
 243         int y, x;
 244         char *ret;
 245
 246         mvwaddstr(bottom, 1, 0, prompt);
 247
 248         getyx(bottom, y, x);
 249
 250         ret = abook_readline(bottom, y, x, s, limit, use_completion);
 251
 252         if(ret)
 253                 strtrim(ret);
 254
 255         return ret;
 256 }
 257
 258 int
 259 statusline_ask_boolean(char *msg, int def)
 260 {
 261         int ret;
 262         char *msg2 = strconcat(msg,  def ? " (Y/n)?" : " (y/N)?", NULL);
 263
 264         statusline_addstr(msg2);
 265
 266         free(msg2);
 267
 268         switch(tolower(getch())) {
 269                 case 'n':
 270                 case 'N':
 271                         ret = FALSE;
 272                         break;
 273                 case 'y':
 274                 case 'Y':
 275                         ret = TRUE;
 276                         break;
 277                 default:
 278                         ret = def;
 279                         break;
 280         }
 281
 282         clear_statusline();
 283
 284         return ret;
 285 }
 286
 287
 288 void
 289 refresh_statusline()
 290 {
 291         werase(bottom);
 292
 293         mvwhline(bottom, 0, 0, UI_HLINE_CHAR, COLS);
 294
 295         refresh();
 296         wrefresh(bottom);
 297 }
 298
 299
 300 char *
 301 ask_filename(char *prompt)
 302 {
 303         char *buf = NULL;
 304
 305         clear_statusline();
 306
 307         buf = ui_readline(prompt, NULL, -1, 1);
 308
 309         return buf;
 310 }
 311
 312 void
 313 clear_statusline()
 314 {
 315         wmove(bottom, 1, 0);
 316         wclrtoeol(bottom);
 317         wrefresh(bottom);
 318         refresh();
 319 }
 320
 321 /*
 322  * help
 323  */
 324
 325 #include "help.h"
 326
 327 void
 328 display_help(int help)
 329 {
 330         int i;
 331         char **tbl;
 332         WINDOW *helpw;
 333
 334         switch(help) {
 335                 case HELP_MAIN:
 336                         tbl = mainhelp;
 337                         break;
 338                 case HELP_EDITOR:
 339                         tbl = editorhelp;
 340                         break;
 341                 default:return;
 342         }
 343
 344         helpw = newwin(LINES - 5, COLS - 6, 2, 3);
 345         erase();
 346         headerline("help");
 347
 348         for(i = 0; tbl[i] != NULL; i++) {
 349                 waddstr(helpw, tbl[i]);
 350                 if( ( !( (i+1) % (LINES-8) ) ) ||
 351                         (tbl[i+1] == NULL) ) {
 352                         refresh();
 353                         wrefresh(helpw);
 354                         refresh_statusline();
 355                         if(statusline_msg("Press any key to continue...")
 356                                         == 'q')
 357                                 break;
 358                         wclear(helpw);
 359                 }
 360         }
 361
 362         clear_statusline();
 363         delwin(helpw);
 364 }
 365
 366 /*
 367  * end of help
 368  */
 369
 370 extern char *selected;
 371 extern int curitem;
 372
 373 void
 374 get_commands()
 375 {
 376         int ch;
 377
 378         for(;;) {
 379                 can_resize = TRUE; /* it's safe to resize now */
 380                 if(!opt_get_bool(BOOL_SHOW_CURSOR))
 381                         hide_cursor();
 382                 if(should_resize)
 383                         refresh_screen();
 384                 ch = getch();
 385                 if(!opt_get_bool(BOOL_SHOW_CURSOR))
 386                         show_cursor();
 387                 can_resize = FALSE; /* it's not safe to resize anymore */
 388                 switch(ch) {
 389                         case 'q': return;
 390                         case 'Q': quit_abook(QUIT_DONTSAVE);    break;
 391                         case 'P': print_stderr(selected_items() ?
 392                                                   -1 : list_current_item());
 393                                   return;
 394                         case '?':
 395                                   display_help(HELP_MAIN);
 396                                   refresh_screen();
 397                                   break;
 398                         case 'a': add_item();           break;
 399                         case '\r': edit_item(-1);       break;
 400                         case KEY_DC:
 401                         case 'd':
 402                         case 'r': ui_remove_items();    break;
 403                         case 'D': duplicate_item();     break;
 404                         case 12: refresh_screen();      break;
 405
 406                         case 'k':
 407                         case KEY_UP: scroll_up();       break;
 408                         case 'j':
 409                         case KEY_DOWN: scroll_down();   break;
 410                         case 'K':
 411                         case KEY_PPAGE: page_up();      break;
 412                         case 'J':
 413                         case KEY_NPAGE: page_down();    break;
 414
 415                         case 'g':
 416                         case KEY_HOME: goto_home();     break;
 417                         case 'G':
 418                         case KEY_END: goto_end();       break;
 419
 420                         case 'w': save_database();
 421                                   break;
 422                         case 'l': ui_read_database();   break;
 423                         case 'i': import_database();    break;
 424                         case 'e': export_database();    break;
 425                         case 'C': ui_clear_database();  break;
 426
 427                         case 'o': ui_open_datafile();   break;
 428
 429                         case 's': sort_by_field(NAME);  break;
 430                         case 'S': sort_surname();       break;
 431                         case 'F': sort_by_field(-1);    break;
 432
 433                         case '/': ui_find(0);           break;
 434                         case '\\': ui_find(1);          break;
 435
 436                         case ' ': if(curitem >= 0) {
 437                                    selected[curitem] = !selected[curitem];
 438                                    ui_print_number_of_items();
 439                                    refresh_list();
 440                                   }
 441                                 break;
 442                         case '+': select_all();
 443                                   refresh_list();
 444                                 break;
 445                         case '-': select_none();
 446                                   refresh_list();
 447                                 break;
 448                         case '*': invert_selection();
 449                                   refresh_list();
 450                                  break;
 451                         case 'A': move_curitem(MOVE_ITEM_UP);
 452                                 break;
 453                         case 'Z': move_curitem(MOVE_ITEM_DOWN);
 454                                 break;
 455
 456                         case 'm': launch_mutt(selected_items() ?
 457                                                   -1 : list_current_item());
 458                                   refresh_screen();
 459                                   break;
 460
 461                         case 'p': ui_print_database(); break;
 462
 463                         case 'u': launch_wwwbrowser(list_current_item());
 464                                   refresh_screen();
 465                                   break;
 466                 }
 467         }
 468 }
 469
 470
 471 void
 472 ui_remove_items()
 473 {
 474         if(list_is_empty())
 475                 return;
 476
 477         if(statusline_ask_boolean("Remove selected item(s)", TRUE))
 478                 remove_selected_items();
 479
 480         clear_statusline();
 481         refresh_list();
 482 }
 483
 484 void
 485 ui_clear_database()
 486 {
 487         if(statusline_ask_boolean("Clear WHOLE database", FALSE)) {
 488                 close_database();
 489                 refresh_list();
 490         }
 491 }
 492
 493 void
 494 ui_find(int next)
 495 {
 496         int item = -1;
 497         static char findstr[MAX_FIELD_LEN];
 498         int search_fields[] = {NAME, EMAIL, NICK, -1};
 499
 500         clear_statusline();
 501
 502         if(next) {
 503                 if(!*findstr)
 504                         return;
 505         } else {
 506                 char *s;
 507                 s = ui_readline("/", findstr, MAX_FIELD_LEN - 1, 0);
 508                 strncpy(findstr, s, MAX_FIELD_LEN);
 509                 refresh_screen();
 510         }
 511
 512         if( (item = find_item(findstr, curitem + !!next, search_fields)) < 0 &&
 513                         (item = find_item(findstr, 0, search_fields)) >= 0)
 514                 statusline_addstr("Search hit bottom, continuing at top");
 515
 516         if(item >= 0) {
 517                 curitem = item;
 518                 refresh_list();
 519         }
 520 }
 521
 522
 523 void
 524 ui_print_number_of_items()
 525 {
 526         char *str = mkstr("     " "|%3d/%3d", selected_items(), items);
 527
 528         mvaddstr(0, COLS-strlen(str), str);
 529
 530         free(str);
 531 }
 532
 533 void
 534 ui_read_database()
 535 {
 536         if(items > 0)
 537                 if(!statusline_ask_boolean("Your current data will be lost - "
 538                                 "Press 'y' to continue", FALSE))
 539                         return;
 540
 541         load_database(datafile);
 542         refresh_list();
 543 }
 544
 545
 546 void
 547 ui_print_database()
 548 {
 549         FILE *handle;
 550         char *command = opt_get_str(STR_PRINT_COMMAND);
 551         int mode;
 552
 553         if(list_is_empty())
 554                 return;
 555
 556         statusline_addstr("Print All/Selected/Cancel (a/s/C)?");
 557
 558         switch(tolower(getch())) {
 559                 case 'a':
 560                         mode = ENUM_ALL;
 561                         break;
 562                 case 's':
 563                         if( !selected_items() ) {
 564                                 statusline_msg("No selected items");
 565                                 return;
 566                         }
 567                         mode = ENUM_SELECTED;
 568                         break;
 569                 default:
 570                         clear_statusline();
 571                         return;
 572         }
 573
 574         clear_statusline();
 575
 576         if( ! *command || (handle = popen(command, "w")) == NULL)
 577                 return;
 578
 579         fexport("text", handle, mode);
 580
 581         pclose(handle);
 582 }
 583
 584
 585 void
 586 ui_open_datafile()
 587 {
 588         char *filename;
 589
 590         filename = ask_filename("File to open: ");
 591
 592         if(!filename || ! *filename) {
 593                 free(filename);
 594                 refresh_screen();
 595                 return;
 596         }
 597
 598         if(opt_get_bool(BOOL_AUTOSAVE))
 599                 save_database();
 600         else if(statusline_ask_boolean("Save current database", FALSE))
 601                 save_database();
 602
 603         close_database();
 604
 605         load_database(filename);
 606
 607         if(items == 0) {
 608                 statusline_msg("Sorry, that specified file appears not to be a valid abook addressbook");
 609                 load_database(datafile);
 610         } else {
 611                 free(datafile);
 612                 datafile = strdup(filename);
 613         }
 614
 615         refresh_screen();
 616         free(filename);
 617
 618         alternative_datafile = TRUE;
 619 }