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,
 156                                  (unsigned char *) NULL);
 157                 mem_free(link_info);
 158                 mem_free(link_title);
 159         }
 160
 161         if (!ret) ret = link_info;
 162
 163         return ret;
 164 }
 165
 166 static inline void
 167 display_status_bar(struct session *ses, struct terminal *term, int tabs_count)
 168 {
 169         unsigned char *msg = NULL;
 170         unsigned int tab_info_len = 0;
 171         struct download *download = get_current_download(ses);
 172         struct session_status *status = &ses->status;
 173         struct color_pair *text_color = NULL;
 174         int msglen;
 175         struct box box;
 176
 177 #ifdef CONFIG_MARKS
 178         if (ses->kbdprefix.mark != KP_MARK_NOTHING) {
 179                 switch (ses->kbdprefix.mark) {
 180                         case KP_MARK_NOTHING:
 181                                 assert(0);
 182                                 break;
 183
 184                         case KP_MARK_SET:
 185                                 msg = msg_text(term, N_("Enter a mark to set"));
 186                                 break;
 187
 188                         case KP_MARK_GOTO:
 189                                 msg = msg_text(term, N_("Enter a mark"
 190                                                         " to which to jump"));
 191                                 break;
 192                 }
 193         } else
 194 #endif
 195         if (ses->kbdprefix.repeat_count) {
 196                 msg = msg_text(term, N_("Keyboard prefix: %d"),
 197                                ses->kbdprefix.repeat_count);
 198         }
 199 #ifdef CONFIG_ECMASCRIPT
 200         else if (ses->status.window_status) {
 201                 msg = stracpy(ses->status.window_status);
 202         }
 203 #endif
 204         else if (download) {
 205                 struct document_view *doc_view = current_frame(ses);
 206
 207                 /* Show S_INTERRUPTED message *once* but then show links
 208                  * again as usual. */
 209                 /* doc_view->vs may be NULL here in the short interval between
 210                  * ses_forward() with @loading_in_frame set, disconnecting the
 211                  * doc_view from vs, and render_document_frames(), detaching
 212                  * the doc_view. */
 213                 if (doc_view && doc_view->vs) {
 214                         static int last_current_link;
 215                         int ncl = doc_view->vs->current_link;
 216
 217                         if (is_in_state(download->state, S_INTERRUPTED)
 218                             && ncl != last_current_link)
 219                                 download->state = connection_state(S_OK);
 220                         last_current_link = ncl;
 221
 222                         if (is_in_state(download->state, S_OK)) {
 223                                 if (get_current_link(doc_view)) {
 224                                         msg = get_current_link_info_and_title(ses, doc_view);
 225                                 } else if (ses->navigate_mode == NAVIGATE_CURSOR_ROUTING) {
 226                                         msg = msg_text(term, N_("Cursor position: %dx%d"),
 227                                                         ses->tab->x + 1, ses->tab->y + 1);
 228                                 }
 229                         }
 230                 }
 231
 232                 if (!msg) {
 233                         int full = term->width > 130;
 234                         int wide = term->width > 80;
 235
 236                         msg = get_download_msg(download, term, wide, full, ", ");
 237                 }
 238         }
 239
 240         set_box(&box, 0, term->height - 1, term->width, 1);
 241         draw_box(term, &box, ' ', 0, get_bfu_color(term, "status.status-bar"));
 242
 243         if (!status->show_tabs_bar && tabs_count > 1) {
 244                 unsigned char tab_info[8];
 245
 246                 tab_info[tab_info_len++] = '[';
 247                 ulongcat(tab_info, &tab_info_len, term->current_tab + 1, 4, 0);
 248                 tab_info[tab_info_len++] = ']';
 249                 tab_info[tab_info_len++] = ' ';
 250                 tab_info[tab_info_len] = '\0';
 251
 252                 text_color = get_bfu_color(term, "status.status-text");
 253                 draw_text(term, 0, term->height - 1, tab_info, tab_info_len,
 254                         0, text_color);
 255         }
 256
 257         if (!msg) return;
 258
 259         if (!text_color)
 260                 text_color = get_bfu_color(term, "status.status-text");
 261
 262         msglen = strlen(msg);
 263         draw_text(term, 0 + tab_info_len, term->height - 1,
 264                   msg, msglen, 0, text_color);
 265         mem_free(msg);
 266
 267         if (download_is_progressing(download) && download->progress->size > 0) {
 268                 int xend = term->width - 1;
 269                 int width;
 270
 271 #ifdef CONFIG_LEDS
 272                 if (ses->status.show_leds)
 273                         xend -= term->leds_length;
 274 #endif
 275
 276                 width = int_max(0, xend - msglen - tab_info_len - 1);
 277                 if (width < 6) return;
 278                 int_upper_bound(&width, 20);
 279                 draw_progress_bar(download->progress, term,
 280                                   xend - width, term->height - 1, width,
 281                                   NULL, NULL);
 282         }
 283 }
 284
 285 static inline void
 286 display_tab_bar(struct session *ses, struct terminal *term, int tabs_count)
 287 {
 288         struct color_pair *normal_color = get_bfu_color(term, "tabs.normal");
 289         struct color_pair *selected_color = get_bfu_color(term, "tabs.selected");
 290         struct color_pair *loading_color = get_bfu_color(term, "tabs.loading");
 291         struct color_pair *fresh_color = get_bfu_color(term, "tabs.unvisited");
 292         struct color_pair *tabsep_color = get_bfu_color(term, "tabs.separator");
 293         struct session_status *status = &ses->status;
 294         int tab_width = int_max(1, term->width / tabs_count);
 295         int tab_total_width = tab_width * tabs_count;
 296         int tab_remain_width = int_max(0, term->width - tab_total_width);
 297         int tab_add = int_max(1, (tab_remain_width / tabs_count));
 298         int tab_num;
 299         struct box box;
 300
 301         if (status->show_tabs_bar_at_top) set_box(&box, 0, status->show_title_bar, term->width, 1);
 302         else set_box(&box, 0, term->height - (status->show_status_bar ? 2 : 1), 0, 1);
 303
 304         for (tab_num = 0; tab_num < tabs_count; tab_num++) {
 305                 struct download *download = NULL;
 306                 struct color_pair *color = normal_color;
 307                 struct window *tab = get_tab_by_number(term, tab_num);
 308                 struct document_view *doc_view;
 309                 struct session *tab_ses = tab->data;
 310                 int actual_tab_width = tab_width - 1;
 311                 unsigned char *msg;
 312
 313                 /* Adjust tab size to use full term width. */
 314                 if (tab_remain_width) {
 315                         actual_tab_width += tab_add;
 316                         tab_remain_width -= tab_add;
 317                 }
 318
 319                 doc_view = tab_ses ? current_frame(tab_ses) : NULL;
 320
 321                 if (doc_view) {
 322                         if (doc_view->document->title
 323                             && *(doc_view->document->title))
 324                                 msg = doc_view->document->title;
 325                         else
 326                                 msg = _("Untitled", term);
 327                 } else {
 328                         msg = _("No document", term);
 329                 }
 330
 331                 if (tab_num) {
 332                         draw_char(term, box.x, box.y, BORDER_SVLINE,
 333                                   SCREEN_ATTR_FRAME, tabsep_color);
 334                         box.x++;
 335                 }
 336
 337                 if (tab_num == term->current_tab) {
 338                         color = selected_color;
 339
 340                 } else {
 341                         download = get_current_download(tab_ses);
 342
 343                         if (download && !is_in_state(download->state, S_OK)) {
 344                                 color = loading_color;
 345                         } else if (!tab_ses || !tab_ses->status.visited) {
 346                                 color = fresh_color;
 347                         }
 348
 349                         if (!download_is_progressing(download)
 350                             || download->progress->size <= 0)
 351                                 download = NULL;
 352                 }
 353
 354                 box.width = actual_tab_width + 1;
 355                 draw_box(term, &box, ' ', 0, color);
 356
 357                 if (download) {
 358                         draw_progress_bar(download->progress, term,
 359                                           box.x, box.y, actual_tab_width,
 360                                           msg, NULL);
 361                 } else {
 362                         int msglen = int_min(strlen(msg), actual_tab_width);
 363
 364                         draw_text(term, box.x, box.y, msg, msglen, 0, color);
 365                 }
 366
 367                 tab->xpos = box.x;
 368                 tab->width = actual_tab_width;
 369                 if (tab_num == tabs_count - 1) {
 370                         /* This is the last tab, and is therefore followed
 371                          * by a space, not a separator; increment tab->width
 372                          * to count that space as part of the tab.
 373                          * -- Miciah */
 374                         tab->width++;
 375                 }
 376
 377                 box.x += actual_tab_width;
 378         }
 379 }
 380
 381 /* Print page's title and numbering at window top. */
 382 static inline void
 383 display_title_bar(struct session *ses, struct terminal *term)
 384 {
 385         struct document_view *doc_view;
 386         struct document *document;
 387         struct string title;
 388         unsigned char buf[40];
 389         int buflen = 0;
 390         int height;
 391
 392         /* Clear the old title */
 393         if (!get_opt_bool("ui.show_menu_bar_always")) {
 394                 struct box box;
 395
 396                 set_box(&box, 0, 0, term->width, 1);
 397                 draw_box(term, &box, ' ', 0, get_bfu_color(term, "title.title-bar"));
 398         }
 399
 400         doc_view = current_frame(ses);
 401         if (!doc_view || !doc_view->document) return;
 402
 403         if (!init_string(&title)) return;
 404
 405         document = doc_view->document;
 406
 407         /* Set up the document page info string: '(' %page '/' %pages ')' */
 408         height = doc_view->box.height;
 409         if (height < document->height && doc_view->vs) {
 410                 int pos = doc_view->vs->y + height;
 411                 int page = 1;
 412                 int pages = height ? (document->height + height - 1) / height : 1;
 413
 414                 /* Check if at the end else calculate the page. */
 415                 if (pos >= document->height) {
 416                         page = pages;
 417                 } else if (height) {
 418                         page = int_min((pos - height / 2) / height + 1, pages);
 419                 }
 420
 421                 buflen = snprintf(buf, sizeof(buf), " (%d/%d)", page, pages);
 422                 if (buflen < 0) buflen = 0;
 423         }
 424
 425         if (document->title) {
 426                 int maxlen = int_max(term->width - 4 - buflen, 0);
 427                 int titlelen, titlewidth;
 428
 429 #ifdef CONFIG_UTF8
 430                 if (term->utf8_cp) {
 431                         titlewidth = utf8_ptr2cells(document->title, NULL);
 432                         titlewidth = int_min(titlewidth, maxlen);
 433
 434                         titlelen = utf8_cells2bytes(document->title,
 435                                                         titlewidth, NULL);
 436                 } else
 437 #endif /* CONFIG_UTF8 */
 438                 {
 439                         titlewidth = int_min(strlen(document->title), maxlen);
 440                         titlelen = titlewidth;
 441                 }
 442
 443                 add_bytes_to_string(&title, document->title, titlelen);
 444
 445                 if (titlewidth == maxlen)
 446                         add_bytes_to_string(&title, "...", 3);
 447         }
 448
 449         if (buflen > 0)
 450                 add_bytes_to_string(&title, buf, buflen);
 451
 452         if (title.length) {
 453                 int x;
 454 #ifdef CONFIG_UTF8
 455                 if (term->utf8_cp) {
 456                         x = int_max(term->width - 1
 457                                     - utf8_ptr2cells(title.source,
 458                                                      title.source
 459                                                      + title.length), 0);
 460                 } else
 461 #endif /* CONFIG_UTF8 */
 462                         x = int_max(term->width - 1 - title.length, 0);
 463
 464                 draw_text(term, x, 0, title.source, title.length, 0,
 465                           get_bfu_color(term, "title.title-text"));
 466         }
 467
 468         done_string(&title);
 469 }
 470
 471 static inline void
 472 display_window_title(struct session *ses, struct terminal *term)
 473 {
 474         static struct session *last_ses;
 475         struct session_status *status = &ses->status;
 476         unsigned char *doc_title = NULL;
 477         unsigned char *title;
 478         int titlelen;
 479
 480         if (ses->doc_view
 481             && ses->doc_view->document
 482             && ses->doc_view->document->title
 483             && ses->doc_view->document->title[0])
 484                 doc_title = ses->doc_view->document->title;
 485
 486         title = doc_title ? straconcat(doc_title, " - ELinks",
 487                                        (unsigned char *) NULL)
 488                           : stracpy("ELinks");
 489         if (!title) return;
 490
 491         titlelen = strlen(title);
 492         if (last_ses != ses
 493             || !status->last_title
 494             || strlen(status->last_title) != titlelen
 495             || memcmp(status->last_title, title, titlelen)) {
 496                 mem_free_set(&status->last_title, title);
 497                 set_terminal_title(term, title);
 498                 last_ses = ses;
 499         } else {
 500                 mem_free(title);
 501         }
 502 }
 503
 504 #ifdef CONFIG_LEDS
 505 static inline void
 506 display_leds(struct session *ses, struct session_status *status)
 507 {
 508         if (ses->doc_view && ses->doc_view->document) {
 509                 struct cache_entry *cached = ses->doc_view->document->cached;
 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 }