edit.c

   1
   2 /*
   3  * $Id$
   4  *
   5  * by JH <jheinonen@users.sourceforge.net>
   6  *
   7  * Copyright (C) Jaakko Heinonen
   8  */
   9
  10 #include <string.h>
  11 #include <stdlib.h>
  12 #include <ctype.h>
  13 #include <assert.h>
  14 #include "abook_curses.h"
  15 #include "ui.h"
  16 #include "abook.h"
  17 #include "database.h"
  18 #include "gettext.h"
  19 #include "list.h"
  20 #include "edit.h"
  21 #include "misc.h"
  22 #include "views.h"
  23 #include "xmalloc.h"
  24 #ifdef HAVE_CONFIG_H
  25 #       include "config.h"
  26 #endif
  27
  28 /*
  29  * some extern variables
  30  */
  31
  32
  33 extern int curitem;
  34 extern int views_count;
  35 extern int items;
  36
  37 WINDOW *editw;
  38
  39
  40 static void
  41 editor_tab(const int tab)
  42 {
  43         int i, j;
  44         int x_pos = 2; /* current x pos */
  45         char *tab_name;
  46
  47         mvwhline(editw, TABLINE + 1, 0, UI_HLINE_CHAR, EDITW_COLS);
  48
  49         for(i = 0; i < views_count; i++) {
  50                 view_info(i, &tab_name, NULL);
  51                 int width = strwidth(tab_name) + 5;
  52
  53                 if(x_pos + width + 1 > EDITW_COLS) {
  54                         statusline_msg(_("Tab name too wide for screen"));
  55                         /* Disabling this field */
  56                         /* TODO should be recomputed on window resize */
  57                         views_count--;
  58                         break;
  59                 }
  60
  61                 mvwaddch(editw,  TABLINE + 1, x_pos,  UI_TEE_CHAR);
  62                 mvwaddch(editw,  TABLINE + 1, x_pos + width - 2, UI_TEE_CHAR);
  63
  64                 mvwaddch(editw,  TABLINE, x_pos,  UI_ULCORNER_CHAR);
  65                 mvwaddch(editw,  TABLINE, x_pos + 1,  UI_LBOXLINE_CHAR);
  66                 mvwaddstr(editw, TABLINE, x_pos + 2,  tab_name);
  67                 mvwaddch(editw,  TABLINE, x_pos + width - 3, UI_RBOXLINE_CHAR);
  68                 mvwaddch(editw,  TABLINE, x_pos + width - 2, UI_URCORNER_CHAR);
  69
  70                 if(i == tab) {
  71                         mvwaddch(editw,  TABLINE + 1, x_pos, UI_LRCORNER_CHAR);
  72                         for(j = 0; j < width - 3; j++)
  73                                 mvwaddstr(editw,
  74                                         TABLINE + 1, x_pos + j + 1, " ");
  75                         mvwaddch(editw,  TABLINE + 1, x_pos + width - 2,
  76                                 UI_LLCORNER_CHAR);
  77                 }
  78                 x_pos += width;
  79         }
  80 }
  81
  82 void
  83 get_first_email(char *str, int item)
  84 {
  85         char *tmp;
  86
  87         if(!db_email_get(item)) {
  88                 *str = 0;
  89                 return;
  90         }
  91
  92         strncpy(str, db_email_get(item), MAX_EMAIL_LEN);
  93         if( (tmp = strchr(str, ',')) )
  94                 *tmp = 0;
  95         else
  96                 str[MAX_EMAIL_LEN - 1] = 0;
  97 }
  98
  99 static void
 100 roll_emails(int item, enum rotate_dir dir)
 101 {
 102         abook_list *emails = csv_to_abook_list(db_email_get(item));
 103
 104         if(!emails)
 105                 return;
 106
 107         free(db_email_get(item));
 108         abook_list_rotate(&emails, dir);
 109         db_fput(item, EMAIL, abook_list_to_csv(emails));
 110         abook_list_free(&emails);
 111 }
 112
 113 static void
 114 init_editor()
 115 {
 116         clear();
 117         editw = newwin(EDITW_LINES, EDITW_COLS, EDITW_TOP, EDITW_X);
 118         notimeout(editw, TRUE); /* handling of escape key */
 119
 120         refresh_statusline();
 121 }
 122
 123 enum {
 124         BACKUP_ITEM,
 125         RESTORE_ITEM,
 126         CLEAR_UNDO
 127 };
 128
 129 static int
 130 edit_undo(int item, int mode)
 131 {
 132         static list_item backup = NULL;
 133         static int backed_up_item = -1;
 134
 135         switch(mode) {
 136                 case CLEAR_UNDO:
 137                         if(backup) {
 138                                 item_empty(backup);
 139                                 item_free(&backup);
 140                         }
 141                         break;
 142                 case BACKUP_ITEM:
 143                         if(backup) {
 144                                 item_empty(backup);
 145                                 item_free(&backup);
 146                         }
 147                         backup = item_create();
 148                         item_duplicate(backup, db_item_get(item));
 149                         backed_up_item = item;
 150                         break;
 151                 case RESTORE_ITEM:
 152                         if(backup) {
 153                                 item_empty(db_item_get(backed_up_item));
 154                                 item_copy(db_item_get(backed_up_item), backup);
 155                                 item_free(&backup);
 156                                 return backed_up_item;
 157                         }
 158                         break;
 159                 default:
 160                         assert(0);
 161         }
 162         return item;
 163 }
 164
 165 static void
 166 close_editor()
 167 {
 168         edit_undo(-1, CLEAR_UNDO);
 169         delwin(editw);
 170         refresh_screen();
 171 }
 172
 173 static void
 174 print_editor_header(int item)
 175 {
 176         char *header;
 177         char email[MAX_EMAIL_LEN];
 178
 179         if((header = xmalloc(EDITW_COLS)) == NULL)
 180                 return;
 181
 182         get_first_email(email, item);
 183
 184         if(*db_email_get(item))
 185                 snprintf(header, EDITW_COLS, "%s <%s>",
 186                                 db_name_get(item),
 187                                 email);
 188         else
 189                 snprintf(header, EDITW_COLS, "%s", db_name_get(item));
 190
 191         mvwaddstr(editw, 0, (EDITW_COLS - strwidth(header)) / 2, header);
 192
 193         free(header);
 194 }
 195
 196 static void
 197 editor_print_data(int tab, int item)
 198 {
 199         int j = 1, nb;
 200         int y, x;
 201         abook_field_list *cur;
 202         char *str;
 203
 204         view_info(tab, NULL, &cur);
 205
 206         for(; cur; cur = cur->next) {
 207
 208                 if(j > 1) {
 209                         getyx(editw, y, x);
 210                         y++;
 211                 } else
 212                         y = FIELDS_START_Y;
 213
 214                 mvwprintw(editw, y, FIELDS_START_X, "%c - ",
 215                                 (j < 10) ? '0' + j : 'A' + j - 10);
 216                 mvwaddnstr(editw, y, FIELDS_START_X + 4, cur->field->name,
 217                                 bytes2width(cur->field->name,
 218                                         FIELDNAME_MAX_WIDTH));
 219                 mvwaddch(editw, y, TAB_COLON_POS, ':');
 220
 221                 if((cur->field->type == FIELD_EMAILS) ||
 222                                 (cur->field->type == FIELD_LIST)) {
 223                         abook_list *emails, *e;
 224
 225                         find_field_number(cur->field->key, &nb);
 226                         emails = csv_to_abook_list(db_fget_byid(item, nb));
 227
 228                         for(e = emails; e; e = e->next) {
 229                                 getyx(editw, y, x);
 230                                 mvwaddnstr(editw, y + 1, TAB_COLON_POS + 2,
 231                                                 e->data,
 232                                                 bytes2width(e->data,
 233                                                         FIELD_MAX_WIDTH));
 234                                 mvwaddch(editw, y + 1, TAB_COLON_POS,
 235                                                 UI_VLINE_CHAR);
 236                         }
 237                         if(emails) {
 238                                 mvwaddch(editw, y + 2, TAB_COLON_POS,
 239                                                 UI_LLCORNER_CHAR);
 240                                 mvwhline(editw, y + 2, TAB_COLON_POS + 1,
 241                                                 UI_HLINE_CHAR,
 242                                                 EDITW_COLS - TAB_COLON_POS - 2);
 243                         }
 244                         abook_list_free(&emails);
 245                 } else {
 246                         find_field_number(cur->field->key, &nb);
 247                         str = safe_str(db_fget_byid(item, nb));
 248                         mvwaddnstr(editw, y, TAB_COLON_POS + 2, str,
 249                                 bytes2width(str, FIELD_MAX_WIDTH));
 250                 }
 251
 252                 j++;
 253         }
 254 }
 255
 256 /*
 257  * function: change_field
 258  *
 259  * parameters:
 260  *  (char *msg)
 261  *   message to display as a prompt
 262  *  (char **field)
 263  *   a pointer to a pointer which will point a new string. if the latter
 264  *   pointer != NULL it will be freed (if user doesn't cancel)
 265  *  (size_t max_len)
 266  *   maximum length of field to read from user
 267  *
 268  * returns (int)
 269  *  a nonzero value if user has cancelled and zero if user has typed a
 270  *  valid string
 271  */
 272 static int
 273 change_field(char *msg, char **field, int max_len)
 274 {
 275         char *old;
 276         int ret = 0;
 277
 278         old = *field;
 279
 280         *field = ui_readline(msg, old, max_len - 1, 0);
 281
 282         if(*field) {
 283                 xfree(old);
 284                 if(!**field)
 285                         xfree(*field);
 286         } else {
 287                 *field = old;
 288                 ret = 1;
 289         }
 290
 291         clear_statusline();
 292         refresh_statusline();
 293
 294         return ret;
 295 }
 296
 297 static int
 298 change_name_field(char *msg, char **field, int max_len)
 299 {
 300         char *tmp;
 301         int ret;
 302
 303         tmp = xstrdup(*field);
 304         ret = change_field(msg, field, max_len);
 305
 306         if(*field == NULL || ! **field) {
 307                 xfree(*field);
 308                 *field = xstrdup(tmp);
 309         }
 310
 311         xfree(tmp);
 312
 313         return ret;
 314 }
 315
 316 static void
 317 fix_email_str(char *str)
 318 {
 319         for(; *str; str++)
 320                 *str = *str == ',' ? '_' : *str;
 321 }
 322
 323 static void
 324 edit_list(int item, int nb, int isemail)
 325 {
 326         char *field, *msg, *keys;
 327         abook_list *list, *e;
 328         int choice = 1, elem_count;
 329
 330         list = csv_to_abook_list(db_fget_byid(item, nb));
 331
 332         for(e = list, elem_count = 0; e; e = e->next, elem_count++)
 333                 ;
 334
 335         if(elem_count) {
 336                 keys = xstrndup(S_("keybindings_new_123456789|n123456789"),
 337                                 elem_count + 1);
 338                 msg = strdup_printf(_("Choose %s to modify (<1>%s%c%s%s."),
 339                                 isemail ? _("email") : _("item"),
 340                                 (elem_count > 1) ? "-<" : "",
 341                                 (elem_count > 1) ?  '0' + elem_count : ')',
 342                                 (elem_count > 1) ? ">)" : "",
 343                                 (elem_count < MAX_LIST_ITEMS) ?
 344                                         _(" or <n>ew") : ""
 345                                 );
 346                 choice = statusline_askchoice(
 347                                 msg,
 348                                 keys,
 349                                 (elem_count < MAX_LIST_ITEMS) ? 1 : 2
 350                                 );
 351                 free(keys);
 352                 free(msg);
 353         }
 354
 355         if(choice == 0)
 356                 return;
 357
 358         field = (choice > 1) ?
 359                 xstrdup(abook_list_get(list, choice - 2)->data) :
 360                 NULL;
 361
 362         if(change_field(isemail ? _("E-mail: ") : _("Item: "),
 363                                 &field, MAX_EMAIL_LEN))
 364                 return; /* user cancelled ( C-g ) */
 365
 366         /* TODO if list item contains commas, sjould use quotes instead */
 367         if(field)
 368                 fix_email_str(field);
 369
 370         if(choice == 1)
 371                 abook_list_append(&list, field);
 372         else
 373                 abook_list_replace(&list, choice - 2, field);
 374
 375         if(field)
 376                 xfree(field);
 377
 378         field = abook_list_to_csv(list);
 379         db_fput_byid(item, nb, field ? field : xstrdup(""));
 380         abook_list_free(&list);
 381 }
 382
 383
 384 /* input range: 1-9A-Z
 385  * output range: 0-34 */
 386 static int
 387 key_to_field_number(char c)
 388 {
 389         int n = c - '1';
 390         if(n >= 0 && n < 9)
 391                 return n;
 392
 393         n = c - 'A' + 9;
 394         if(n > 8 && n < 35)
 395                 return n;
 396
 397         return -1;
 398 }
 399
 400 static void
 401 edit_field(int tab, char c, int item_number)
 402 {
 403         int i = 0, number, idx;
 404         char *msg;
 405         abook_field_list *f;
 406         list_item item;
 407
 408         if((number = key_to_field_number(c)) < 0)
 409                 return;
 410
 411         edit_undo(item_number, BACKUP_ITEM);
 412
 413         view_info(tab, NULL, &f);
 414
 415         while(1) {
 416                 if(!f)
 417                         return;
 418
 419                 if(i == number)
 420                         break;
 421
 422                 f = f->next;
 423                 i++;
 424         }
 425
 426         find_field_number(f->field->key, &idx);
 427
 428         switch(f->field->type) {
 429                 case FIELD_STRING:
 430                         msg = strdup_printf("%s: ", f->field->name);
 431                         item = db_item_get(item_number);
 432                         if(strcmp(f->field->key, "name") == 0)
 433                                 change_name_field(msg,&item[idx],MAX_FIELD_LEN);
 434                         else
 435                                 change_field(msg,&item[idx],MAX_FIELD_LEN);
 436                         free(msg);
 437                         break;
 438                 case FIELD_LIST:
 439                         edit_list(item_number, idx, 0);
 440                         break;
 441                 case FIELD_EMAILS:
 442                         edit_list(item_number, idx, 1);
 443                         break;
 444                 case FIELD_DAY:
 445                         statusline_msg(_("sorry, input for this field type is "
 446                                                 "not yet implemented"));
 447                         return;
 448                 default:
 449                         assert(0);
 450         }
 451 }
 452
 453 static int
 454 edit_loop(int item)
 455 {
 456         static int tab = 0; /* first tab */
 457         int c;
 458
 459         werase(editw);
 460         headerline(gettext(EDITOR_HELPLINE));
 461         refresh_statusline();
 462         print_editor_header(item);
 463         editor_tab(tab);
 464         editor_print_data(tab, item);
 465         wmove(editw, EDITW_LINES - 1, EDITW_COLS - 1);
 466
 467         refresh();
 468         wrefresh(editw);
 469
 470         c = getch();
 471         if(c == '\033') {
 472                 statusline_addstr("ESC-");
 473                 c = getch();
 474                 clear_statusline();
 475
 476                 /* Escaped bindings */
 477                 switch(c) {
 478                         case 'r': roll_emails(item, ROTATE_RIGHT); break;
 479                         default: break;
 480                 }
 481
 482                 return item;
 483         }
 484
 485         /* No uppercase nor numeric key should be used in this menu,
 486          * as they are reserved for field selection */
 487         switch(c) {
 488                 case 'h':
 489                 case KEY_LEFT: tab = tab == 0 ? views_count - 1 : tab - 1;
 490                                break;
 491                 case 'l':
 492                 case KEY_RIGHT: tab = tab == views_count - 1 ? 0 : tab + 1;
 493                                 break;
 494                 case KEY_UP:
 495                 case '<':
 496                 case 'k': if(is_valid_item(item - 1)) item--; break;
 497                 case KEY_DOWN:
 498                 case '>':
 499                 case 'j': if(is_valid_item(item + 1)) item++; break;
 500                 case 'r': roll_emails(item, ROTATE_LEFT); break;
 501                 case '?': display_help(HELP_EDITOR); break;
 502                 case 'u': item = edit_undo(item, RESTORE_ITEM); break;
 503                 case 'm': launch_mutt(item); clearok(stdscr, 1); break;
 504                 case 'v': launch_wwwbrowser(item); clearok(stdscr, 1); break;
 505                 case 12 : clearok(stdscr, 1); break; /* ^L (refresh screen) */
 506                 case 'q': return -1;
 507                 default: edit_field(tab, c, item);
 508         }
 509
 510         return item;
 511 }
 512
 513 void
 514 edit_item(int item)
 515 {
 516         if( item < 0 ) {
 517                 if( curitem < 0 )
 518                         return;
 519                 else
 520                         item = curitem;
 521         }
 522
 523         init_editor();
 524
 525         while((item = edit_loop(item)) >= 0)
 526                 curitem = item; /* hmm, this is not very clean way to go */
 527
 528         close_editor();
 529 }
 530
 531 void
 532 add_item()
 533 {
 534         char *field = NULL;
 535         list_item item = item_create();
 536
 537         change_field("Name: ", &field, MAX_FIELD_LEN);
 538
 539         if( field == NULL )
 540                 return;
 541
 542         item_fput(item, NAME, field);
 543
 544         add_item2database(item);
 545         item_free(&item);
 546
 547         curitem = LAST_ITEM;
 548
 549         edit_item(LAST_ITEM);
 550 }
 551