src/dialogs/status.c

   1 /* Sessions status management */
   2
   3 #ifdef HAVE_CONFIG_H
   4 #include "config.h"
   5 #endif
   6
   7 #include <string.h>
   8
   9 #include "elinks.h"
  10
  11 #include "bfu/dialog.h"
  12 #include "cache/cache.h"
  13 #include "config/options.h"
  14 #include "dialogs/progress.h"
  15 #include "dialogs/status.h"
  16 #include "document/document.h"
  17 #include "document/renderer.h"
  18 #include "document/view.h"
  19 #include "intl/gettext/libintl.h"
  20 #include "network/connection.h"
  21 #include "network/progress.h"
  22 #include "network/state.h"
  23 #include "protocol/bittorrent/dialogs.h"
  24 #include "protocol/protocol.h"
  25 #include "protocol/uri.h"
  26 #include "session/download.h"
  27 #include "session/session.h"
  28 #include "terminal/draw.h"
  29 #include "terminal/screen.h"
  30 #include "terminal/tab.h"
  31 #include "terminal/terminal.h"
  32 #include "terminal/window.h"
  33 #include "util/color.h"
  34 #include "util/conv.h"
  35 #include "util/error.h"
  36 #include "util/memory.h"
  37 #include "util/snprintf.h"
  38 #include "util/string.h"
  39 #include "viewer/text/form.h"
  40 #include "viewer/text/link.h"
  41 #include "viewer/text/view.h"
  42
  43
  44 unsigned char *
  45 get_download_msg(struct download *download, struct terminal *term,
  46                  int wide, int full, unsigned char *separator)
  47 {
  48         if (!download_is_progressing(download)) {
  49                 /* DBG("%d -> %s", download->state, _(get_err_msg(download->state), term)); */
  50                 return stracpy(get_state_message(download->state, term));
  51         }
  52
  53 #ifdef CONFIG_BITTORRENT
  54         if (download->conn
  55             && download->conn->uri->protocol == PROTOCOL_BITTORRENT)
  56                 return get_bittorrent_message(download, term, wide, full, separator);
  57 #endif
  58
  59         return get_progress_msg(download->progress, term, wide, full, separator);
  60 }
  61
  62 #define show_tabs(option, tabs) (((option) > 0) && !((option) == 1 && (tabs) < 2))
  63
  64 void
  65 update_status(void)
  66 {
  67         int show_title_bar = get_opt_bool("ui.show_title_bar");
  68         int show_status_bar = get_opt_bool("ui.show_status_bar");
  69         int show_tabs_bar = get_opt_int("ui.tabs.show_bar");
  70         int show_tabs_bar_at_top = get_opt_bool("ui.tabs.top");
  71 #ifdef CONFIG_LEDS
  72         int show_leds = get_opt_bool("ui.leds.enable");
  73 #endif
  74         int set_window_title = get_opt_bool("ui.window_title");
  75         int insert_mode = get_opt_bool("document.browse.forms.insert_mode");
  76         struct session *ses;
  77         int tabs_count = 1;
  78         struct terminal *term = NULL;
  79
  80         foreach (ses, sessions) {
  81                 struct session_status *status = &ses->status;
  82                 int dirty = 0;
  83
  84                 /* Try to descrease the number of tab calculation using that
  85                  * tab sessions share the same term. */
  86                 if (ses->tab->term != term) {
  87                         term = ses->tab->term;
  88                         tabs_count = number_of_tabs(term);
  89                 }
  90
  91                 if (status->force_show_title_bar >= 0)
  92                         show_title_bar = status->force_show_title_bar;
  93                 if (status->show_title_bar != show_title_bar) {
  94                         status->show_title_bar = show_title_bar;
  95                         dirty = 1;
  96                 }
  97
  98                 if (status->force_show_status_bar >= 0)
  99                         show_status_bar = status->force_show_status_bar;
 100                 if (status->show_status_bar != show_status_bar) {
 101                         status->show_status_bar = show_status_bar;
 102                         dirty = 1;
 103                 }
 104
 105                 if (show_tabs(show_tabs_bar, tabs_count) != status->show_tabs_bar) {
 106                         status->show_tabs_bar = show_tabs(show_tabs_bar, tabs_count);
 107                         dirty = 1;
 108                 }
 109
 110                 if (status->show_tabs_bar) {
 111                         if (status->show_tabs_bar_at_top != show_tabs_bar_at_top) {
 112                                 status->show_tabs_bar_at_top = show_tabs_bar_at_top;
 113                                 dirty = 1;
 114                         }
 115                 }
 116 #ifdef CONFIG_LEDS
 117                 if (status->show_leds != show_leds) {
 118                         status->show_leds = show_leds;
 119                         dirty = 1;
 120                 }
 121 #endif
 122
 123                 status->set_window_title = set_window_title;
 124
 125                 /* This more belongs to the current browsing state but ... */
 126                 if (!insert_mode)
 127                         ses->insert_mode = INSERT_MODE_LESS;
 128                 else if (ses->insert_mode == INSERT_MODE_LESS)
 129                         ses->insert_mode = INSERT_MODE_OFF;
 130
 131                 if (!dirty) continue;
 132
 133                 /* Force the current document to be rerendered so the
 134                  * document view and document height is updated to fit
 135                  * into the new dimensions. Related to bug 87. */
 136                 render_document_frames(ses, 1);
 137
 138                 set_screen_dirty(term->screen, 0, term->height);
 139         }
 140 }
 141
 142 static unsigned char *
 143 get_current_link_info_and_title(struct session *ses,
 144                                 struct document_view *doc_view)
 145 {
 146         unsigned char *link_info, *link_title, *ret = NULL;
 147
 148         link_info = get_current_link_info(ses, doc_view);
 149         if (!link_info) return NULL;
 150
 151         link_title = get_current_link_title(doc_view);
 152         if (link_title) {
 153                 assert(*link_title);
 154
 155                 ret = straconcat(link_info, " - ", link_title, NULL);
 156                 mem_free(link_info);
 157                 mem_free(link_title);
 158         }
 159
 160         if (!ret) ret = link_info;
 161
 162         return ret;
 163 }
 164
 165 static inline void
 166 display_status_bar(struct session *ses, struct terminal *term, int tabs_count)
 167 {
 168         unsigned char *msg = NULL;
 169         unsigned int tab_info_len = 0;
 170         struct download *download = get_current_download(ses);
 171         struct session_status *status = &ses->status;
 172         struct color_pair *text_color = NULL;
 173         int msglen;
 174         struct box box;
 175
 176 #ifdef CONFIG_MARKS
 177         if (ses->kbdprefix.mark != KP_MARK_NOTHING) {
 178                 switch (ses->kbdprefix.mark) {
 179                         case KP_MARK_NOTHING:
 180                                 assert(0);
 181                                 break;
 182
 183                         case KP_MARK_SET:
 184                                 msg = msg_text(term, N_("Enter a mark to set"));
 185                                 break;
 186
 187                         case KP_MARK_GOTO:
 188                                 msg = msg_text(term, N_("Enter a mark"
 189                                                         " to which to jump"));
 190                                 break;
 191                 }
 192         } else
 193 #endif
 194         if (ses->kbdprefix.repeat_count) {
 195                 msg = msg_text(term, N_("Keyboard prefix: %d"),
 196                                ses->kbdprefix.repeat_count);
 197         }
 198 #ifdef CONFIG_ECMASCRIPT
 199         else if (ses->status.window_status) {
 200                 msg = stracpy(ses->status.window_status);
 201         }
 202 #endif
 203         else if (download) {
 204                 struct document_view *doc_view = current_frame(ses);
 205
 206                 /* Show S_INTERRUPTED message *once* but then show links
 207                  * again as usual. */
 208                 /* doc_view->vs may be NULL here in the short interval between
 209                  * ses_forward() with @loading_in_frame set, disconnecting the
 210                  * doc_view from vs, and render_document_frames(), detaching
 211                  * the doc_view. */
 212                 if (doc_view && doc_view->vs) {
 213                         static int last_current_link;
 214                         int ncl = doc_view->vs->current_link;
 215
 216                         if (download->state == S_INTERRUPTED
 217                             && ncl != last_current_link)
 218                                 download->state = S_OK;
 219                         last_current_link = ncl;
 220
 221                         if (download->state == S_OK) {
 222                                 if (get_current_link(doc_view)) {
 223                                         msg = get_current_link_info_and_title(ses, doc_view);
 224                                 } else if (ses->navigate_mode == NAVIGATE_CURSOR_ROUTING) {
 225                                         msg = msg_text(term, N_("Cursor position: %dx%d"),
 226                                                         ses->tab->x + 1, ses->tab->y + 1);
 227                                 }
 228                         }
 229                 }
 230
 231                 if (!msg) {
 232                         int full = term->width > 130;
 233                         int wide = term->width > 80;
 234
 235                         msg = get_download_msg(download, term, wide, full, ", ");
 236                 }
 237         }
 238
 239         set_box(&box, 0, term->height - 1, term->width, 1);
 240         draw_box(term, &box, ' ', 0, get_bfu_color(term, "status.status-bar"));
 241
 242         if (!status->show_tabs_bar && tabs_count > 1) {
 243                 unsigned char tab_info[8];
 244
 245                 tab_info[tab_info_len++] = '[';
 246                 ulongcat(tab_info, &tab_info_len, term->current_tab + 1, 4, 0);
 247                 tab_info[tab_info_len++] = ']';
 248                 tab_info[tab_info_len++] = ' ';
 249                 tab_info[tab_info_len] = '\0';
 250
 251                 text_color = get_bfu_color(term, "status.status-text");
 252                 draw_text(term, 0, term->height - 1, tab_info, tab_info_len,
 253                         0, text_color);
 254         }
 255
 256         if (!msg) return;
 257
 258         if (!text_color)
 259                 text_color = get_bfu_color(term, "status.status-text");
 260
 261         msglen = strlen(msg);
 262         draw_text(term, 0 + tab_info_len, term->height - 1,
 263                   msg, msglen, 0, text_color);
 264         mem_free(msg);
 265
 266         if (download_is_progressing(download) && download->progress->size > 0) {
 267                 int xend = term->width - 1;
 268                 int width;
 269
 270 #ifdef CONFIG_LEDS
 271                 if (ses->status.show_leds)
 272                         xend -= term->leds_length;
 273 #endif
 274
 275                 width = int_max(0, xend - msglen - tab_info_len - 1);
 276                 if (width < 6) return;
 277                 int_upper_bound(&width, 20);
 278                 draw_progress_bar(download->progress, term,
 279                                   xend - width, term->height - 1, width,
 280                                   NULL, NULL);
 281         }
 282 }
 283
 284 static inline void
 285 display_tab_bar(struct session *ses, struct terminal *term, int tabs_count)
 286 {
 287         struct color_pair *normal_color = get_bfu_color(term, "tabs.normal");
 288         struct color_pair *selected_color = get_bfu_color(term, "tabs.selected");
 289         struct color_pair *loading_color = get_bfu_color(term, "tabs.loading");
 290         struct color_pair *fresh_color = get_bfu_color(term, "tabs.unvisited");
 291         struct color_pair *tabsep_color = get_bfu_color(term, "tabs.separator");
 292         struct session_status *status = &ses->status;
 293         int tab_width = int_max(1, term->width / tabs_count);
 294         int tab_total_width = tab_width * tabs_count;
 295         int tab_remain_width = int_max(0, term->width - tab_total_width);
 296         int tab_add = int_max(1, (tab_remain_width / tabs_count));
 297         int tab_num;
 298         struct box box;
 299
 300         if (status->show_tabs_bar_at_top) set_box(&box, 0, status->show_title_bar, term->width, 1);
 301         else set_box(&box, 0, term->height - (status->show_status_bar ? 2 : 1), 0, 1);
 302
 303         for (tab_num = 0; tab_num < tabs_count; tab_num++) {
 304                 struct download *download = NULL;
 305                 struct color_pair *color = normal_color;
 306                 struct window *tab = get_tab_by_number(term, tab_num);
 307                 struct document_view *doc_view;
 308                 struct session *tab_ses = tab->data;
 309                 int actual_tab_width = tab_width - 1;
 310                 unsigned char *msg;
 311
 312                 /* Adjust tab size to use full term width. */
 313                 if (tab_remain_width) {
 314                         actual_tab_width += tab_add;
 315                         tab_remain_width -= tab_add;
 316                 }
 317
 318                 doc_view = tab_ses ? current_frame(tab_ses) : NULL;
 319
 320                 if (doc_view) {
 321                         if (doc_view->document->title
 322                             && *(doc_view->document->title))
 323                                 msg = doc_view->document->title;
 324                         else
 325                                 msg = _("Untitled", term);
 326                 } else {
 327                         msg = _("No document", term);
 328                 }
 329
 330                 if (tab_num) {
 331                         draw_char(term, box.x, box.y, BORDER_SVLINE,
 332                                   SCREEN_ATTR_FRAME, tabsep_color);
 333                         box.x++;
 334                 }
 335
 336                 if (tab_num == term->current_tab) {
 337                         color = selected_color;
 338
 339                 } else {
 340                         download = get_current_download(tab_ses);
 341
 342                         if (download && download->state != S_OK) {
 343                                 color = loading_color;
 344                         } else if (!tab_ses || !tab_ses->status.visited) {
 345                                 color = fresh_color;
 346                         }
 347
 348                         if (!download_is_progressing(download)
 349                             || download->progress->size <= 0)
 350                                 download = NULL;
 351                 }
 352
 353                 box.width = actual_tab_width + 1;
 354                 draw_box(term, &box, ' ', 0, color);
 355
 356                 if (download) {
 357                         draw_progress_bar(download->progress, term,
 358                                           box.x, box.y, actual_tab_width,
 359                                           msg, NULL);
 360                 } else {
 361                         int msglen = int_min(strlen(msg), actual_tab_width);
 362
 363                         draw_text(term, box.x, box.y, msg, msglen, 0, color);
 364                 }
 365
 366                 tab->xpos = box.x;
 367                 tab->width = actual_tab_width;
 368                 if (tab_num == tabs_count - 1) {
 369                         /* This is the last tab, and is therefore followed
 370                          * by a space, not a separator; increment tab->width
 371                          * to count that space as part of the tab.
 372                          * -- Miciah */
 373                         tab->width++;
 374                 }
 375
 376                 box.x += actual_tab_width;
 377         }
 378 }
 379
 380 /* Print page's title and numbering at window top. */
 381 static inline void
 382 display_title_bar(struct session *ses, struct terminal *term)
 383 {
 384         struct document_view *doc_view;
 385         struct document *document;
 386         struct string title;
 387         unsigned char buf[40];
 388         int buflen = 0;
 389         int height;
 390
 391         /* Clear the old title */
 392         if (!get_opt_bool("ui.show_menu_bar_always")) {
 393                 struct box box;
 394
 395                 set_box(&box, 0, 0, term->width, 1);
 396                 draw_box(term, &box, ' ', 0, get_bfu_color(term, "title.title-bar"));
 397         }
 398
 399         doc_view = current_frame(ses);
 400         if (!doc_view || !doc_view->document) return;
 401
 402         if (!init_string(&title)) return;
 403
 404         document = doc_view->document;
 405
 406         /* Set up the document page info string: '(' %page '/' %pages ')' */
 407         height = doc_view->box.height;
 408         if (height < document->height && doc_view->vs) {
 409                 int pos = doc_view->vs->y + height;
 410                 int page = 1;
 411                 int pages = height ? (document->height + height - 1) / height : 1;
 412
 413                 /* Check if at the end else calculate the page. */
 414                 if (pos >= document->height) {
 415                         page = pages;
 416                 } else if (height) {
 417                         page = int_min((pos - height / 2) / height + 1, pages);
 418                 }
 419
 420                 buflen = snprintf(buf, sizeof(buf), " (%d/%d)", page, pages);
 421                 if (buflen < 0) buflen = 0;
 422         }
 423
 424         if (document->title) {
 425                 int maxlen = int_max(term->width - 4 - buflen, 0);
 426                 int titlelen, titlewidth;
 427
 428 #ifdef CONFIG_UTF8
 429                 if (term->utf8) {
 430                         titlewidth = utf8_ptr2cells(document->title, NULL);
 431                         titlewidth = int_min(titlewidth, maxlen);
 432
 433                         titlelen = utf8_cells2bytes(document->title,
 434                                                         titlewidth, NULL);
 435                 } else
 436 #endif /* CONFIG_UTF8 */
 437                 {
 438                         titlewidth = int_min(strlen(document->title), maxlen);
 439                         titlelen = titlewidth;
 440                 }
 441
 442                 add_bytes_to_string(&title, document->title, titlelen);
 443
 444                 if (titlewidth == maxlen)
 445                         add_bytes_to_string(&title, "...", 3);
 446         }
 447
 448         if (buflen > 0)
 449                 add_bytes_to_string(&title, buf, buflen);
 450
 451         if (title.length) {
 452                 int x;
 453 #ifdef CONFIG_UTF8
 454                 if (term->utf8) {
 455                         x = int_max(term->width - 1
 456                                     - utf8_ptr2cells(title.source,
 457                                                      title.source
 458                                                      + title.length), 0);
 459                 } else
 460 #endif /* CONFIG_UTF8 */
 461                         x = int_max(term->width - 1 - title.length, 0);
 462
 463                 draw_text(term, x, 0, title.source, title.length, 0,
 464                           get_bfu_color(term, "title.title-text"));
 465         }
 466
 467         done_string(&title);
 468 }
 469
 470 static inline void
 471 display_window_title(struct session *ses, struct terminal *term)
 472 {
 473         static struct session *last_ses;
 474         struct session_status *status = &ses->status;
 475         unsigned char *doc_title = NULL;
 476         unsigned char *title;
 477         int titlelen;
 478
 479         if (ses->doc_view
 480             && ses->doc_view->document
 481             && ses->doc_view->document->title
 482             && ses->doc_view->document->title[0])
 483                 doc_title = ses->doc_view->document->title;
 484
 485         title = doc_title ? straconcat(doc_title, " - ELinks", NULL)
 486                           : stracpy("ELinks");
 487         if (!title) return;
 488
 489         titlelen = strlen(title);
 490         if (last_ses != ses
 491             || !status->last_title
 492             || strlen(status->last_title) != titlelen
 493             || memcmp(status->last_title, title, titlelen)) {
 494                 mem_free_set(&status->last_title, title);
 495                 set_terminal_title(term, title);
 496                 last_ses = ses;
 497         } else {
 498                 mem_free(title);
 499         }
 500 }
 501
 502 #ifdef CONFIG_LEDS
 503 static inline void
 504 display_leds(struct session *ses, struct session_status *status)
 505 {
 506         if (ses->doc_view && ses->doc_view->document
 507             && ses->doc_view->document->uri) {
 508                 struct cache_entry *cached =
 509                         find_in_cache(ses->doc_view->document->uri);
 510
 511                 if (cached) {
 512                         if (cached->ssl_info)
 513                                 set_led_value(status->ssl_led, 'S');
 514                         else
 515                                 unset_led_value(status->ssl_led);
 516                 } else {
 517                         /* FIXME: We should do this thing better. */
 518                         set_led_value(status->ssl_led, '?');
 519                 }
 520         }
 521
 522         if (ses->insert_mode == INSERT_MODE_LESS) {
 523                 set_led_value(status->insert_mode_led, 'i');
 524         } else {
 525                 if (ses->insert_mode == INSERT_MODE_ON)
 526                         set_led_value(status->insert_mode_led, 'I');
 527                 else
 528                         unset_led_value(status->insert_mode_led);
 529         }
 530
 531         draw_leds(ses);
 532 }
 533 #endif /* CONFIG_LEDS */
 534
 535 /* Print statusbar and titlebar, set terminal title. */
 536 void
 537 print_screen_status(struct session *ses)
 538 {
 539         struct terminal *term = ses->tab->term;
 540         struct session_status *status = &ses->status;
 541         int tabs_count = number_of_tabs(term);
 542         int ses_tab_is_current = (ses->tab == get_current_tab(term));
 543
 544         if (ses_tab_is_current) {
 545                 if (status->set_window_title)
 546                         display_window_title(ses, term);
 547
 548                 if (status->show_title_bar)
 549                         display_title_bar(ses, term);
 550
 551                 if (status->show_status_bar)
 552                         display_status_bar(ses, term, tabs_count);
 553 #ifdef CONFIG_LEDS
 554                 if (status->show_leds)
 555                         display_leds(ses, status);
 556 #endif
 557
 558                 if (!ses->status.visited)
 559                         ses->status.visited = 1;
 560         }
 561
 562         if (status->show_tabs_bar) {
 563                 display_tab_bar(ses, term, tabs_count);
 564         }
 565
 566         redraw_from_window(ses->tab);
 567 }