browser.c

   1 #include <limits.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <fcntl.h>
   7 #include <string.h>
   8
   9 #include <gtk/gtk.h>
  10 #include <gtk/gtkx.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <gio/gio.h>
  13 #include <webkit2/webkit2.h>
  14 #include <JavaScriptCore/JavaScript.h>
  15
  16
  17 static void client_destroy(GtkWidget *, gpointer);
  18 static gboolean client_destroy_request(WebKitWebView *, gpointer);
  19 static WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean);
  20 static WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  21                                          gpointer);
  22 static void cooperation_setup(void);
  23 static void changed_download_progress(GObject *, GParamSpec *, gpointer);
  24 static void changed_load_progress(GObject *, GParamSpec *, gpointer);
  25 static void changed_title(GObject *, GParamSpec *, gpointer);
  26 static void changed_uri(GObject *, GParamSpec *, gpointer);
  27 static gboolean crashed_web_view(WebKitWebView *, gpointer);
  28 static gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  29                               WebKitPolicyDecisionType, gpointer);
  30 static gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  31 static void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  32 static void downloadmanager_cancel(GtkToolButton *, gpointer);
  33 static gboolean downloadmanager_delete(GtkWidget *, gpointer);
  34 static void downloadmanager_setup(void);
  35 static gchar *ensure_uri_scheme(const gchar *);
  36 static void external_handler_run(GSimpleAction *, GVariant *, gpointer);
  37 static void grab_environment_configuration(void);
  38 static void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  39 static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  40 static void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  41 static gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  42 static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  43 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  44 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  45 static void keywords_load(void);
  46 static gboolean keywords_try_search(WebKitWebView *, const gchar *);
  47 static gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  48                               WebKitHitTestResult *, gpointer);
  49 static gboolean quit_if_nothing_active(void);
  50 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  51 static void search(gpointer, gint);
  52 static void show_web_view(WebKitWebView *, gpointer);
  53 static Window tabbed_launch(void);
  54 static void trust_user_certs(WebKitWebContext *);
  55
  56
  57 struct Client
  58 {
  59     gchar *external_handler_uri;
  60     gchar *hover_uri;
  61     gchar *feed_html;
  62     GtkWidget *location;
  63     GtkWidget *vbox;
  64     GtkWidget *web_view;
  65     GtkWidget *win;
  66 };
  67
  68 struct DownloadManager
  69 {
  70     GtkWidget *scroll;
  71     GtkWidget *toolbar;
  72     GtkWidget *win;
  73 } dm;
  74
  75
  76 static const gchar *accepted_language[2] = { NULL, NULL };
  77 static gint clients = 0, downloads = 0;
  78 static gboolean cooperative_alone = TRUE;
  79 static gboolean cooperative_instances = TRUE;
  80 static int cooperative_pipe_fp = 0;
  81 static gchar *download_dir = "/var/tmp";
  82 static gboolean enable_webgl = FALSE;
  83 static gboolean enable_console_to_stdout = FALSE;
  84 static Window embed = 0;
  85 static gchar *fifo_suffix = "main";
  86 static gdouble global_zoom = 1.0;
  87 static gchar *history_file = NULL;
  88 static gchar *home_uri = "about:blank";
  89 static gboolean initial_wc_setup_done = FALSE;
  90 static GHashTable *keywords = NULL;
  91 static gchar *search_text = NULL;
  92 static gboolean tabbed_automagic = TRUE;
  93 static gchar *user_agent = NULL;
  94
  95
  96 void
  97 client_destroy(GtkWidget *widget, gpointer data)
  98 {
  99     struct Client *c = (struct Client *)data;
 100
 101     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 102                                          changed_load_progress, c);
 103
 104     free(c);
 105     clients--;
 106
 107     quit_if_nothing_active();
 108 }
 109
 110 gboolean
 111 client_destroy_request(WebKitWebView *web_view, gpointer data)
 112 {
 113     struct Client *c = (struct Client *)data;
 114
 115     gtk_widget_destroy(c->win);
 116
 117     return TRUE;
 118 }
 119
 120 WebKitWebView *
 121 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 122 {
 123     struct Client *c;
 124     WebKitWebContext *wc;
 125     gchar *f;
 126
 127     if (uri != NULL && cooperative_instances && !cooperative_alone)
 128     {
 129         f = ensure_uri_scheme(uri);
 130         write(cooperative_pipe_fp, f, strlen(f));
 131         write(cooperative_pipe_fp, "\n", 1);
 132         g_free(f);
 133         return NULL;
 134     }
 135
 136     c = calloc(1, sizeof(struct Client));
 137     if (!c)
 138     {
 139         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 140         exit(EXIT_FAILURE);
 141     }
 142
 143     if (embed != 0)
 144     {
 145         c->win = gtk_plug_new(embed);
 146         if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 147         {
 148             fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 149             gtk_widget_destroy(c->win);
 150             c->win = NULL;
 151             embed = 0;
 152         }
 153     }
 154
 155     if (c->win == NULL)
 156         c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 157
 158     gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 159
 160     g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 161     gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 162
 163     if (related_wv == NULL)
 164         c->web_view = webkit_web_view_new();
 165     else
 166         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 167     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 168
 169     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 170     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 171                      G_CALLBACK(changed_title), c);
 172     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 173                      G_CALLBACK(changed_uri), c);
 174     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 175                      G_CALLBACK(changed_load_progress), c);
 176     g_signal_connect(G_OBJECT(c->web_view), "create",
 177                      G_CALLBACK(client_new_request), NULL);
 178     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 179                      G_CALLBACK(menu_web_view), c);
 180     g_signal_connect(G_OBJECT(c->web_view), "close",
 181                      G_CALLBACK(client_destroy_request), c);
 182     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 183                      G_CALLBACK(decide_policy), NULL);
 184     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 185                      G_CALLBACK(key_web_view), c);
 186     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 187                      G_CALLBACK(key_web_view), c);
 188     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 189                      G_CALLBACK(key_web_view), c);
 190     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 191                      G_CALLBACK(hover_web_view), c);
 192     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 193                      G_CALLBACK(crashed_web_view), c);
 194
 195     if (!initial_wc_setup_done)
 196     {
 197         if (accepted_language[0] != NULL)
 198             webkit_web_context_set_preferred_languages(wc, accepted_language);
 199
 200         g_signal_connect(G_OBJECT(wc), "download-started",
 201                          G_CALLBACK(download_handle_start), NULL);
 202
 203         trust_user_certs(wc);
 204
 205         initial_wc_setup_done = TRUE;
 206     }
 207
 208     if (user_agent != NULL)
 209         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 210                      "user-agent", user_agent, NULL);
 211
 212     if (enable_console_to_stdout)
 213         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 214
 215     if (enable_webgl)
 216         webkit_settings_set_enable_webgl(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 217
 218     c->location = gtk_entry_new();
 219     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 220                      G_CALLBACK(key_location), c);
 221     g_signal_connect(G_OBJECT(c->location), "icon-release",
 222                      G_CALLBACK(icon_location), c);
 223     /* XXX This is a workaround. Setting this to NULL (which is done in
 224      * grab_feeds_finished() if no feed has been detected) adds a little
 225      * padding left of the text. Not sure why. The point of this call
 226      * right here is to have that padding right from the start. This
 227      * avoids a graphical artifact. */
 228     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 229                                       GTK_ENTRY_ICON_PRIMARY,
 230                                       NULL);
 231
 232     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 233     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 234     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 235
 236     gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 237
 238     if (show)
 239         show_web_view(NULL, c);
 240     else
 241         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 242                          G_CALLBACK(show_web_view), c);
 243
 244     if (uri != NULL)
 245     {
 246         f = ensure_uri_scheme(uri);
 247         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 248         g_free(f);
 249     }
 250
 251     clients++;
 252
 253     return WEBKIT_WEB_VIEW(c->web_view);
 254 }
 255
 256 WebKitWebView *
 257 client_new_request(WebKitWebView *web_view,
 258                    WebKitNavigationAction *navigation_action, gpointer data)
 259 {
 260     return client_new(NULL, web_view, FALSE);
 261 }
 262
 263 void
 264 cooperation_setup(void)
 265 {
 266     GIOChannel *towatch;
 267     gchar *fifofilename, *fifopath;
 268
 269     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 270     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 271     g_free(fifofilename);
 272
 273     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 274         mkfifo(fifopath, 0600);
 275
 276     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 277     if (!cooperative_pipe_fp)
 278     {
 279         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 280     }
 281     else
 282     {
 283         if (write(cooperative_pipe_fp, "", 0) == -1)
 284         {
 285             /* Could not do an empty write to the FIFO which means there's
 286              * no one listening. */
 287             close(cooperative_pipe_fp);
 288             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 289             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 290         }
 291         else
 292             cooperative_alone = FALSE;
 293     }
 294
 295     g_free(fifopath);
 296 }
 297
 298 void
 299 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 300 {
 301     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 302     WebKitURIResponse *resp;
 303     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 304     gdouble p, size_mb;
 305     const gchar *uri;
 306     gchar *t, *filename, *base;
 307
 308     p = webkit_download_get_estimated_progress(download);
 309     p = p > 1 ? 1 : p;
 310     p = p < 0 ? 0 : p;
 311     p *= 100;
 312     resp = webkit_download_get_response(download);
 313     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 314
 315     uri = webkit_download_get_destination(download);
 316     filename = g_filename_from_uri(uri, NULL, NULL);
 317     if (filename == NULL)
 318     {
 319         /* This really should not happen because WebKit uses that URI to
 320          * write to a file... */
 321         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 322         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 323                             webkit_uri_response_get_uri(resp), p, size_mb);
 324     }
 325     else
 326     {
 327         base = g_path_get_basename(filename);
 328         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 329         g_free(filename);
 330         g_free(base);
 331     }
 332     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 333     g_free(t);
 334 }
 335
 336 void
 337 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 338 {
 339     struct Client *c = (struct Client *)data;
 340     gdouble p;
 341     gchar *grab_feeds =
 342         "a = document.querySelectorAll('"
 343         "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 344         "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 345         "');"
 346         "if (a.length == 0)"
 347         "    null;"
 348         "else"
 349         "{"
 350         "    out = '';"
 351         "    for (i = 0; i < a.length; i++)"
 352         "    {"
 353         "        url = encodeURIComponent(a[i].href);"
 354         "        if ('title' in a[i] && a[i].title != '')"
 355         "            title = encodeURIComponent(a[i].title);"
 356         "        else"
 357         "            title = url;"
 358         "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 359         "    }"
 360         "    out;"
 361         "}";
 362
 363     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 364     if (p == 1)
 365     {
 366         p = 0;
 367
 368         /* The page has loaded fully. We now run the short JavaScript
 369          * snippet above that operates on the DOM. It tries to grab all
 370          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 371          * references. */
 372         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 373                                        grab_feeds, NULL,
 374                                        grab_feeds_finished, c);
 375     }
 376     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 377 }
 378
 379 void
 380 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 381 {
 382     const gchar *t, *u;
 383     struct Client *c = (struct Client *)data;
 384
 385     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 386     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 387
 388     u = u == NULL ? __NAME__ : u;
 389     u = u[0] == 0 ? __NAME__ : u;
 390
 391     t = t == NULL ? u : t;
 392     t = t[0] == 0 ? u : t;
 393
 394     gtk_window_set_title(GTK_WINDOW(c->win), t);
 395 }
 396
 397 void
 398 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 399 {
 400     const gchar *t;
 401     struct Client *c = (struct Client *)data;
 402     FILE *fp;
 403
 404     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 405
 406     /* When a web process crashes, we get a "notify::uri" signal, but we
 407      * can no longer read a meaningful URI. It's just an empty string
 408      * now. Not updating the location bar in this scenario is important,
 409      * because we would override the "WEB PROCESS CRASHED" message. */
 410     if (t != NULL && strlen(t) > 0)
 411     {
 412         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 413
 414         if (history_file != NULL)
 415         {
 416             fp = fopen(history_file, "a");
 417             if (fp != NULL)
 418             {
 419                 fprintf(fp, "%s\n", t);
 420                 fclose(fp);
 421             }
 422             else
 423                 perror(__NAME__": Error opening history file");
 424         }
 425     }
 426 }
 427
 428 gboolean
 429 crashed_web_view(WebKitWebView *web_view, gpointer data)
 430 {
 431     gchar *t;
 432     struct Client *c = (struct Client *)data;
 433
 434     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 435                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 436     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 437     g_free(t);
 438
 439     return TRUE;
 440 }
 441
 442 gboolean
 443 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 444               WebKitPolicyDecisionType type, gpointer data)
 445 {
 446     WebKitResponsePolicyDecision *r;
 447
 448     switch (type)
 449     {
 450         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 451             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 452             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 453                 webkit_policy_decision_download(decision);
 454             else
 455                 webkit_policy_decision_use(decision);
 456             break;
 457         default:
 458             /* Use whatever default there is. */
 459             return FALSE;
 460     }
 461     return TRUE;
 462 }
 463
 464 void
 465 download_handle_finished(WebKitDownload *download, gpointer data)
 466 {
 467     downloads--;
 468 }
 469
 470 void
 471 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 472                       gpointer data)
 473 {
 474     g_signal_connect(G_OBJECT(download), "decide-destination",
 475                      G_CALLBACK(download_handle), data);
 476 }
 477
 478 gboolean
 479 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 480 {
 481     gchar *sug_clean, *path, *path2 = NULL, *uri;
 482     GtkToolItem *tb;
 483     int suffix = 1;
 484     size_t i;
 485
 486     sug_clean = g_strdup(suggested_filename);
 487     for (i = 0; i < strlen(sug_clean); i++)
 488         if (sug_clean[i] == G_DIR_SEPARATOR)
 489             sug_clean[i] = '_';
 490
 491     path = g_build_filename(download_dir, sug_clean, NULL);
 492     path2 = g_strdup(path);
 493     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 494     {
 495         g_free(path2);
 496
 497         path2 = g_strdup_printf("%s.%d", path, suffix);
 498         suffix++;
 499     }
 500
 501     if (suffix == 1000)
 502     {
 503         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 504         webkit_download_cancel(download);
 505     }
 506     else
 507     {
 508         uri = g_filename_to_uri(path2, NULL, NULL);
 509         webkit_download_set_destination(download, uri);
 510         g_free(uri);
 511
 512         tb = gtk_tool_button_new(NULL, NULL);
 513         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 514         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 515         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 516         gtk_widget_show_all(dm.win);
 517
 518         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 519                          G_CALLBACK(changed_download_progress), tb);
 520
 521         downloads++;
 522         g_signal_connect(G_OBJECT(download), "finished",
 523                          G_CALLBACK(download_handle_finished), NULL);
 524
 525         g_object_ref(download);
 526         g_signal_connect(G_OBJECT(tb), "clicked",
 527                          G_CALLBACK(downloadmanager_cancel), download);
 528     }
 529
 530     g_free(sug_clean);
 531     g_free(path);
 532     g_free(path2);
 533
 534     /* Propagate -- to whom it may concern. */
 535     return FALSE;
 536 }
 537
 538 void
 539 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 540 {
 541     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 542
 543     webkit_download_cancel(download);
 544     g_object_unref(download);
 545
 546     gtk_widget_destroy(GTK_WIDGET(tb));
 547 }
 548
 549 gboolean
 550 downloadmanager_delete(GtkWidget *obj, gpointer data)
 551 {
 552     if (!quit_if_nothing_active())
 553         gtk_widget_hide(dm.win);
 554
 555     return TRUE;
 556 }
 557
 558 void
 559 downloadmanager_setup(void)
 560 {
 561     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 562     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 563     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 564     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 565     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 566                      G_CALLBACK(downloadmanager_delete), NULL);
 567     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 568                      G_CALLBACK(key_downloadmanager), NULL);
 569
 570     dm.toolbar = gtk_toolbar_new();
 571     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 572                                    GTK_ORIENTATION_VERTICAL);
 573     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 574     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 575
 576     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 577     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 578                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 579     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 580
 581     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 582 }
 583
 584 gchar *
 585 ensure_uri_scheme(const gchar *t)
 586 {
 587     gchar *f, *fabs;
 588
 589     f = g_ascii_strdown(t, -1);
 590     if (!g_str_has_prefix(f, "http:") &&
 591         !g_str_has_prefix(f, "https:") &&
 592         !g_str_has_prefix(f, "file:") &&
 593         !g_str_has_prefix(f, "about:") &&
 594         !g_str_has_prefix(f, "data:"))
 595     {
 596         g_free(f);
 597         fabs = realpath(t, NULL);
 598         if (fabs != NULL)
 599         {
 600             f = g_strdup_printf("file://%s", fabs);
 601             free(fabs);
 602         }
 603         else
 604             f = g_strdup_printf("http://%s", t);
 605         return f;
 606     }
 607     else
 608         return g_strdup(t);
 609 }
 610
 611 void
 612 external_handler_run(GSimpleAction *simple, GVariant *param, gpointer data)
 613 {
 614     struct Client *c = (struct Client *)data;
 615     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 616     GPid pid;
 617     GError *err = NULL;
 618
 619     (void)simple;
 620     (void)param;
 621
 622     argv[2] = c->external_handler_uri;
 623     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 624                        &pid, &err))
 625     {
 626         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 627                 err->message);
 628         g_error_free(err);
 629     }
 630     else
 631         g_spawn_close_pid(pid);
 632 }
 633
 634 void
 635 grab_environment_configuration(void)
 636 {
 637     const gchar *e;
 638
 639     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 640     if (e != NULL)
 641         accepted_language[0] = g_strdup(e);
 642
 643     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 644     if (e != NULL)
 645         download_dir = g_strdup(e);
 646
 647     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 648     if (e != NULL)
 649         enable_console_to_stdout = TRUE;
 650
 651     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_EXPERIMENTAL_WEBGL");
 652     if (e != NULL)
 653         enable_webgl = TRUE;
 654
 655     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 656     if (e != NULL)
 657         fifo_suffix = g_strdup(e);
 658
 659     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 660     if (e != NULL)
 661         history_file = g_strdup(e);
 662
 663     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 664     if (e != NULL)
 665         home_uri = g_strdup(e);
 666
 667     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 668     if (e != NULL)
 669         user_agent = g_strdup(e);
 670
 671     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 672     if (e != NULL)
 673         global_zoom = atof(e);
 674 }
 675
 676 void
 677 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 678 {
 679     struct Client *c = (struct Client *)data;
 680     WebKitJavascriptResult *js_result;
 681     JSCValue *value;
 682     JSCException *exception;
 683     GError *err = NULL;
 684     gchar *str_value;
 685
 686     g_free(c->feed_html);
 687     c->feed_html = NULL;
 688
 689     /* This was taken almost verbatim from the example in WebKit's
 690      * documentation:
 691      *
 692      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html#webkit-web-view-run-javascript-finish */
 693
 694     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 695                                                       result, &err);
 696     if (!js_result)
 697     {
 698         fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 699         g_error_free(err);
 700         return;
 701     }
 702
 703     value = webkit_javascript_result_get_js_value(js_result);
 704     if (jsc_value_is_string(value))
 705     {
 706         str_value = jsc_value_to_string(value);
 707         exception = jsc_context_get_exception(jsc_value_get_context(value));
 708         if (exception != NULL)
 709         {
 710             fprintf(stderr, __NAME__": Error running javascript: %s\n",
 711                     jsc_exception_get_message(exception));
 712         }
 713         else
 714             c->feed_html = str_value;
 715
 716         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 717                                           GTK_ENTRY_ICON_PRIMARY,
 718                                           "application-rss+xml-symbolic");
 719         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 720                                        GTK_ENTRY_ICON_PRIMARY,
 721                                        TRUE);
 722     }
 723     else
 724     {
 725         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 726                                           GTK_ENTRY_ICON_PRIMARY,
 727                                           NULL);
 728     }
 729
 730     webkit_javascript_result_unref(js_result);
 731 }
 732
 733 void
 734 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 735                gpointer data)
 736 {
 737     struct Client *c = (struct Client *)data;
 738
 739     if (!gtk_widget_is_focus(c->location))
 740     {
 741         if (webkit_hit_test_result_context_is_link(ht))
 742         {
 743             gtk_entry_set_text(GTK_ENTRY(c->location),
 744                                webkit_hit_test_result_get_link_uri(ht));
 745
 746             if (c->hover_uri != NULL)
 747                 g_free(c->hover_uri);
 748             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 749         }
 750         else
 751         {
 752             gtk_entry_set_text(GTK_ENTRY(c->location),
 753                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 754
 755             if (c->hover_uri != NULL)
 756                 g_free(c->hover_uri);
 757             c->hover_uri = NULL;
 758         }
 759     }
 760 }
 761
 762 void
 763 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 764               gpointer data)
 765 {
 766     struct Client *c = (struct Client *)data;
 767     gchar *d;
 768     gchar *data_template =
 769         "data:text/html,"
 770         "<!DOCTYPE html>"
 771         "<html>"
 772         "    <head>"
 773         "        <meta charset=\"UTF-8\">"
 774         "        <title>Feeds</title>"
 775         "    </head>"
 776         "    <body>"
 777         "        <p>Feeds found on this page:</p>"
 778         "        <ul>"
 779         "        %s"
 780         "        </ul>"
 781         "    </body>"
 782         "</html>";
 783
 784     if (c->feed_html != NULL)
 785     {
 786         /* What we're actually trying to do is show a simple HTML page
 787          * that lists all the feeds on the current page. The function
 788          * webkit_web_view_load_html() looks like the proper way to do
 789          * that. Sad thing is, it doesn't create a history entry, but
 790          * instead simply replaces the content of the current page. This
 791          * is not what we want.
 792          *
 793          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 794          * mechanism to show my custom HTML snippet *and* create a
 795          * history entry.
 796          *
 797          * [0]: https://tools.ietf.org/html/rfc2397
 798          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 799         d = g_strdup_printf(data_template, c->feed_html);
 800         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 801         g_free(d);
 802     }
 803 }
 804
 805 gboolean
 806 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 807 {
 808     struct Client *c = (struct Client *)data;
 809     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 810     gchar *f;
 811
 812     if (event->type == GDK_KEY_PRESS)
 813     {
 814         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 815         {
 816             switch (((GdkEventKey *)event)->keyval)
 817             {
 818                 case GDK_KEY_q:  /* close window (left hand) */
 819                     gtk_widget_destroy(c->win);
 820                     return TRUE;
 821                 case GDK_KEY_w:  /* home (left hand) */
 822                     f = ensure_uri_scheme(home_uri);
 823                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 824                     g_free(f);
 825                     return TRUE;
 826                 case GDK_KEY_e:  /* new tab (left hand) */
 827                     f = ensure_uri_scheme(home_uri);
 828                     client_new(f, NULL, TRUE);
 829                     g_free(f);
 830                     return TRUE;
 831                 case GDK_KEY_r:  /* reload (left hand) */
 832                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 833                                                         c->web_view));
 834                     return TRUE;
 835                 case GDK_KEY_d:  /* download manager (left hand) */
 836                     gtk_widget_show_all(dm.win);
 837                     return TRUE;
 838                 case GDK_KEY_2:  /* search forward (left hand) */
 839                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 840                     search(c, 1);
 841                     return TRUE;
 842                 case GDK_KEY_3:  /* search backward (left hand) */
 843                     search(c, -1);
 844                     return TRUE;
 845                 case GDK_KEY_l:  /* location (BOTH hands) */
 846                     gtk_widget_grab_focus(c->location);
 847                     return TRUE;
 848                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 849                     gtk_widget_grab_focus(c->location);
 850                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 851                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 852                     return TRUE;
 853                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 854                     trust_user_certs(wc);
 855                     return TRUE;
 856                 case GDK_KEY_x:  /* launch external handler (left hand) */
 857                     if (c->external_handler_uri != NULL)
 858                         g_free(c->external_handler_uri);
 859                     c->external_handler_uri = g_strdup(
 860                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 861                     external_handler_run(NULL, NULL, c);
 862                     return TRUE;
 863             }
 864         }
 865         /* navigate backward (left hand) */
 866         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 867         {
 868             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 869             return TRUE;
 870         }
 871         /* navigate forward (left hand) */
 872         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 873         {
 874             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 875             return TRUE;
 876         }
 877     }
 878
 879     return FALSE;
 880 }
 881
 882 gboolean
 883 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 884 {
 885     if (event->type == GDK_KEY_PRESS)
 886     {
 887         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 888         {
 889             switch (((GdkEventKey *)event)->keyval)
 890             {
 891                 case GDK_KEY_d:  /* close window (left hand) */
 892                 case GDK_KEY_q:
 893                     downloadmanager_delete(dm.win, NULL);
 894                     return TRUE;
 895             }
 896         }
 897     }
 898
 899     return FALSE;
 900 }
 901
 902 gboolean
 903 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 904 {
 905     struct Client *c = (struct Client *)data;
 906     const gchar *t;
 907     gchar *f;
 908
 909     if (key_common(widget, event, data))
 910         return TRUE;
 911
 912     if (event->type == GDK_KEY_PRESS)
 913     {
 914         switch (((GdkEventKey *)event)->keyval)
 915         {
 916             case GDK_KEY_KP_Enter:
 917             case GDK_KEY_Return:
 918                 gtk_widget_grab_focus(c->web_view);
 919                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 920                 if (t != NULL && t[0] == ':' && t[1] == '/')
 921                 {
 922                     if (search_text != NULL)
 923                         g_free(search_text);
 924                     search_text = g_strdup(t + 2);
 925                     search(c, 0);
 926                 }
 927                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 928                 {
 929                     f = ensure_uri_scheme(t);
 930                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 931                     g_free(f);
 932                 }
 933                 return TRUE;
 934             case GDK_KEY_Escape:
 935                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 936                 gtk_entry_set_text(GTK_ENTRY(c->location),
 937                                    (t == NULL ? __NAME__ : t));
 938                 return TRUE;
 939         }
 940     }
 941
 942     return FALSE;
 943 }
 944
 945 gboolean
 946 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 947 {
 948     struct Client *c = (struct Client *)data;
 949     gdouble dx, dy;
 950     gfloat z;
 951
 952     if (key_common(widget, event, data))
 953         return TRUE;
 954
 955     if (event->type == GDK_KEY_PRESS)
 956     {
 957         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 958         {
 959             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 960             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 961         }
 962     }
 963     else if (event->type == GDK_BUTTON_RELEASE)
 964     {
 965         switch (((GdkEventButton *)event)->button)
 966         {
 967             case 2:
 968                 if (c->hover_uri != NULL)
 969                 {
 970                     client_new(c->hover_uri, NULL, TRUE);
 971                     return TRUE;
 972                 }
 973                 break;
 974             case 8:
 975                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 976                 return TRUE;
 977             case 9:
 978                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 979                 return TRUE;
 980         }
 981     }
 982     else if (event->type == GDK_SCROLL)
 983     {
 984         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
 985             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
 986         {
 987             gdk_event_get_scroll_deltas(event, &dx, &dy);
 988             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 989             z += -dy * 0.1;
 990             z = dx != 0 ? global_zoom : z;
 991             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
 992             return TRUE;
 993         }
 994     }
 995
 996     return FALSE;
 997 }
 998
 999 void
1000 keywords_load(void)
1001 {
1002     GError *err = NULL;
1003     GIOChannel *channel = NULL;
1004     gchar *path = NULL, *buf = NULL;
1005     gchar **tokens = NULL;
1006
1007     keywords = g_hash_table_new(g_str_hash, g_str_equal);
1008
1009     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
1010                             NULL);
1011     channel = g_io_channel_new_file(path, "r", &err);
1012     if (channel != NULL)
1013     {
1014         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
1015                == G_IO_STATUS_NORMAL)
1016         {
1017             g_strstrip(buf);
1018             if (buf[0] != '#')
1019             {
1020                 tokens = g_strsplit(buf, " ", 2);
1021                 if (tokens[0] != NULL && tokens[1] != NULL)
1022                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
1023                                         g_strdup(tokens[1]));
1024                 g_strfreev(tokens);
1025             }
1026             g_free(buf);
1027         }
1028         g_io_channel_shutdown(channel, FALSE, NULL);
1029     }
1030     g_free(path);
1031 }
1032
1033 gboolean
1034 keywords_try_search(WebKitWebView *web_view, const gchar *t)
1035 {
1036     gboolean ret = FALSE;
1037     gchar **tokens = NULL;
1038     gchar *val = NULL, *escaped = NULL, *uri = NULL;
1039
1040     tokens = g_strsplit(t, " ", 2);
1041     if (tokens[0] != NULL && tokens[1] != NULL)
1042     {
1043         val = g_hash_table_lookup(keywords, tokens[0]);
1044         if (val != NULL)
1045         {
1046             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
1047             uri = g_strdup_printf((gchar *)val, escaped);
1048             webkit_web_view_load_uri(web_view, uri);
1049             g_free(uri);
1050             g_free(escaped);
1051             ret = TRUE;
1052         }
1053     }
1054     g_strfreev(tokens);
1055
1056     return ret;
1057 }
1058
1059 gboolean
1060 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
1061               WebKitHitTestResult *ht, gpointer data)
1062 {
1063     struct Client *c = (struct Client *)data;
1064     GSimpleAction *action = NULL;
1065     WebKitContextMenuItem *mi = NULL;
1066     const gchar *uri = NULL;
1067
1068     (void)ev;
1069
1070     if (webkit_hit_test_result_context_is_link(ht))
1071         uri = webkit_hit_test_result_get_link_uri(ht);
1072     else if (webkit_hit_test_result_context_is_image(ht))
1073         uri = webkit_hit_test_result_get_image_uri(ht);
1074     else if (webkit_hit_test_result_context_is_media(ht))
1075         uri = webkit_hit_test_result_get_media_uri(ht);
1076
1077     if (uri != NULL)
1078     {
1079         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
1080
1081         if (c->external_handler_uri != NULL)
1082             g_free(c->external_handler_uri);
1083         c->external_handler_uri = g_strdup(uri);
1084         action = g_simple_action_new("external_handler", NULL);
1085         g_signal_connect(G_OBJECT(action), "activate",
1086                          G_CALLBACK(external_handler_run), data);
1087         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
1088                                                        "Open with external handler",
1089                                                        NULL);
1090         webkit_context_menu_append(menu, mi);
1091         g_object_unref(action);
1092     }
1093
1094     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
1095     return FALSE;
1096 }
1097
1098 gboolean
1099 quit_if_nothing_active(void)
1100 {
1101     if (clients == 0)
1102     {
1103         if (downloads == 0)
1104         {
1105             gtk_main_quit();
1106             return TRUE;
1107         }
1108         else
1109             gtk_widget_show_all(dm.win);
1110     }
1111
1112     return FALSE;
1113 }
1114
1115 gboolean
1116 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1117 {
1118     gchar *uri = NULL;
1119
1120     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1121     if (uri)
1122     {
1123         g_strstrip(uri);
1124         client_new(uri, NULL, TRUE);
1125         g_free(uri);
1126     }
1127     return TRUE;
1128 }
1129
1130 void
1131 search(gpointer data, gint direction)
1132 {
1133     struct Client *c = (struct Client *)data;
1134     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
1135     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
1136
1137     if (search_text == NULL)
1138         return;
1139
1140     switch (direction)
1141     {
1142         case 0:
1143             webkit_find_controller_search(fc, search_text,
1144                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
1145                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1146                                           G_MAXUINT);
1147             break;
1148         case 1:
1149             webkit_find_controller_search_next(fc);
1150             break;
1151         case -1:
1152             webkit_find_controller_search_previous(fc);
1153             break;
1154     }
1155 }
1156
1157 void
1158 show_web_view(WebKitWebView *web_view, gpointer data)
1159 {
1160     struct Client *c = (struct Client *)data;
1161
1162     (void)web_view;
1163
1164     gtk_widget_grab_focus(c->web_view);
1165     gtk_widget_show_all(c->win);
1166 }
1167
1168 Window
1169 tabbed_launch(void)
1170 {
1171     gint tabbed_stdout;
1172     GIOChannel *tabbed_stdout_channel;
1173     GError *err = NULL;
1174     gchar *output = NULL;
1175     char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
1176     Window plug_into;
1177
1178     if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
1179                                   NULL, NULL, NULL, &tabbed_stdout, NULL,
1180                                   &err))
1181     {
1182         fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
1183         g_error_free(err);
1184         return 0;
1185     }
1186
1187     tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
1188     if (tabbed_stdout_channel == NULL)
1189     {
1190         fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
1191         return 0;
1192     }
1193     g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
1194     g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
1195     if (output == NULL)
1196     {
1197         fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
1198         return 0;
1199     }
1200     g_strstrip(output);
1201     plug_into = strtol(output, NULL, 16);
1202     g_free(output);
1203     if (plug_into == 0)
1204         fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
1205     return plug_into;
1206 }
1207
1208 void
1209 trust_user_certs(WebKitWebContext *wc)
1210 {
1211     GTlsCertificate *cert;
1212     const gchar *basedir, *file, *absfile;
1213     GDir *dir;
1214
1215     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1216     dir = g_dir_open(basedir, 0, NULL);
1217     if (dir != NULL)
1218     {
1219         file = g_dir_read_name(dir);
1220         while (file != NULL)
1221         {
1222             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1223                                        file, NULL);
1224             cert = g_tls_certificate_new_from_file(absfile, NULL);
1225             if (cert == NULL)
1226                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1227             else
1228                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1229             file = g_dir_read_name(dir);
1230         }
1231         g_dir_close(dir);
1232     }
1233 }
1234
1235
1236 int
1237 main(int argc, char **argv)
1238 {
1239     gchar *c;
1240     int opt, i;
1241
1242     gtk_init(&argc, &argv);
1243     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1244         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1245
1246     grab_environment_configuration();
1247
1248     while ((opt = getopt(argc, argv, "e:CT")) != -1)
1249     {
1250         switch (opt)
1251         {
1252             case 'e':
1253                 embed = atol(optarg);
1254                 tabbed_automagic = FALSE;
1255                 break;
1256             case 'C':
1257                 cooperative_instances = FALSE;
1258                 break;
1259             case 'T':
1260                 tabbed_automagic = FALSE;
1261                 break;
1262             default:
1263                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1264                 exit(EXIT_FAILURE);
1265         }
1266     }
1267
1268     keywords_load();
1269     if (cooperative_instances)
1270         cooperation_setup();
1271     downloadmanager_setup();
1272
1273     if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
1274         embed = tabbed_launch();
1275
1276     if (!cooperative_instances || cooperative_alone)
1277     {
1278         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1279                              NULL);
1280         webkit_web_context_set_web_extensions_directory(
1281             webkit_web_context_get_default(), c
1282         );
1283     }
1284
1285     if (optind >= argc)
1286         client_new(home_uri, NULL, TRUE);
1287     else
1288     {
1289         for (i = optind; i < argc; i++)
1290             client_new(argv[i], NULL, TRUE);
1291     }
1292
1293     if (!cooperative_instances || cooperative_alone)
1294         gtk_main();
1295     exit(EXIT_SUCCESS);
1296 }