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