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 static gchar *feed_html_header =
  96 "<!DOCTYPE html>"
  97 "<html>"
  98 "    <head>"
  99 "        <meta charset=\"UTF-8\">"
 100 "        <title>Feeds</title>"
 101 "    </head>"
 102 "    <body>"
 103 "        <p>Feeds found on this page:</p>"
 104 "        <ul>"
 105 ;
 106
 107 static gchar *feed_html_footer =
 108 "        </ul>"
 109 "    </body>"
 110 "</html>"
 111 ;
 112
 113 static gchar *grab_feeds =
 114 "a = document.querySelectorAll('"
 115 "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 116 "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 117 "');"
 118 "if (a.length == 0)"
 119 "    null;"
 120 "else"
 121 "{"
 122 "    out = '';"
 123 "    for (i = 0; i < a.length; i++)"
 124 "    {"
 125 "        url = encodeURIComponent(a[i].href);"
 126 "        if ('title' in a[i] && a[i].title != '')"
 127 "            title = encodeURIComponent(a[i].title);"
 128 "        else"
 129 "            title = url;"
 130 "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 131 "    }"
 132 "    out;"
 133 "}"
 134 ;
 135
 136
 137 void
 138 client_destroy(GtkWidget *widget, gpointer data)
 139 {
 140     struct Client *c = (struct Client *)data;
 141
 142     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 143                                          changed_load_progress, c);
 144
 145     free(c);
 146     clients--;
 147
 148     quit_if_nothing_active();
 149 }
 150
 151 gboolean
 152 client_destroy_request(WebKitWebView *web_view, gpointer data)
 153 {
 154     struct Client *c = (struct Client *)data;
 155
 156     gtk_widget_destroy(c->win);
 157
 158     return TRUE;
 159 }
 160
 161 WebKitWebView *
 162 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 163 {
 164     struct Client *c;
 165     WebKitWebContext *wc;
 166     gchar *f;
 167
 168     if (uri != NULL && cooperative_instances && !cooperative_alone)
 169     {
 170         f = ensure_uri_scheme(uri);
 171         write(cooperative_pipe_fp, f, strlen(f));
 172         write(cooperative_pipe_fp, "\n", 1);
 173         g_free(f);
 174         return NULL;
 175     }
 176
 177     c = calloc(1, sizeof(struct Client));
 178     if (!c)
 179     {
 180         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 181         exit(EXIT_FAILURE);
 182     }
 183
 184     if (embed != 0)
 185     {
 186         c->win = gtk_plug_new(embed);
 187         if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 188         {
 189             fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 190             gtk_widget_destroy(c->win);
 191             c->win = NULL;
 192             embed = 0;
 193         }
 194     }
 195
 196     if (c->win == NULL)
 197         c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 198
 199     gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 200
 201     g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 202     gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 203
 204     if (related_wv == NULL)
 205         c->web_view = webkit_web_view_new();
 206     else
 207         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 208     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 209
 210     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 211     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 212                      G_CALLBACK(changed_title), c);
 213     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 214                      G_CALLBACK(changed_uri), c);
 215     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 216                      G_CALLBACK(changed_load_progress), c);
 217     g_signal_connect(G_OBJECT(c->web_view), "create",
 218                      G_CALLBACK(client_new_request), NULL);
 219     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 220                      G_CALLBACK(menu_web_view), c);
 221     g_signal_connect(G_OBJECT(c->web_view), "close",
 222                      G_CALLBACK(client_destroy_request), c);
 223     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 224                      G_CALLBACK(decide_policy), NULL);
 225     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 226                      G_CALLBACK(key_web_view), c);
 227     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 228                      G_CALLBACK(key_web_view), c);
 229     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 230                      G_CALLBACK(key_web_view), c);
 231     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 232                      G_CALLBACK(hover_web_view), c);
 233     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 234                      G_CALLBACK(crashed_web_view), c);
 235
 236     if (!initial_wc_setup_done)
 237     {
 238         if (accepted_language[0] != NULL)
 239             webkit_web_context_set_preferred_languages(wc, accepted_language);
 240
 241         g_signal_connect(G_OBJECT(wc), "download-started",
 242                          G_CALLBACK(download_handle_start), NULL);
 243
 244         trust_user_certs(wc);
 245
 246         initial_wc_setup_done = TRUE;
 247     }
 248
 249     if (user_agent != NULL)
 250         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 251                      "user-agent", user_agent, NULL);
 252
 253     if (enable_console_to_stdout)
 254         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 255
 256     if (enable_webgl)
 257         webkit_settings_set_enable_webgl(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 258
 259     c->location = gtk_entry_new();
 260     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 261                      G_CALLBACK(key_location), c);
 262     g_signal_connect(G_OBJECT(c->location), "icon-release",
 263                      G_CALLBACK(icon_location), c);
 264     /* XXX This is a workaround. Setting this to NULL (which is done in
 265      * grab_feeds_finished() if no feed has been detected) adds a little
 266      * padding left of the text. Not sure why. The point of this call
 267      * right here is to have that padding right from the start. This
 268      * avoids a graphical artifact. */
 269     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 270                                       GTK_ENTRY_ICON_PRIMARY,
 271                                       NULL);
 272
 273     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 274     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 275     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 276
 277     gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 278
 279     if (show)
 280         show_web_view(NULL, c);
 281     else
 282         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 283                          G_CALLBACK(show_web_view), c);
 284
 285     if (uri != NULL)
 286     {
 287         f = ensure_uri_scheme(uri);
 288         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 289         g_free(f);
 290     }
 291
 292     clients++;
 293
 294     return WEBKIT_WEB_VIEW(c->web_view);
 295 }
 296
 297 WebKitWebView *
 298 client_new_request(WebKitWebView *web_view,
 299                    WebKitNavigationAction *navigation_action, gpointer data)
 300 {
 301     return client_new(NULL, web_view, FALSE);
 302 }
 303
 304 void
 305 cooperation_setup(void)
 306 {
 307     GIOChannel *towatch;
 308     gchar *fifofilename, *fifopath;
 309
 310     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 311     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 312     g_free(fifofilename);
 313
 314     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 315         mkfifo(fifopath, 0600);
 316
 317     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 318     if (!cooperative_pipe_fp)
 319     {
 320         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 321     }
 322     else
 323     {
 324         if (write(cooperative_pipe_fp, "", 0) == -1)
 325         {
 326             /* Could not do an empty write to the FIFO which means there's
 327              * no one listening. */
 328             close(cooperative_pipe_fp);
 329             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 330             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 331         }
 332         else
 333             cooperative_alone = FALSE;
 334     }
 335
 336     g_free(fifopath);
 337 }
 338
 339 void
 340 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 341 {
 342     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 343     WebKitURIResponse *resp;
 344     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 345     gdouble p, size_mb;
 346     const gchar *uri;
 347     gchar *t, *filename, *base;
 348
 349     p = webkit_download_get_estimated_progress(download);
 350     p = p > 1 ? 1 : p;
 351     p = p < 0 ? 0 : p;
 352     p *= 100;
 353     resp = webkit_download_get_response(download);
 354     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 355
 356     uri = webkit_download_get_destination(download);
 357     filename = g_filename_from_uri(uri, NULL, NULL);
 358     if (filename == NULL)
 359     {
 360         /* This really should not happen because WebKit uses that URI to
 361          * write to a file... */
 362         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 363         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 364                             webkit_uri_response_get_uri(resp), p, size_mb);
 365     }
 366     else
 367     {
 368         base = g_path_get_basename(filename);
 369         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 370         g_free(filename);
 371         g_free(base);
 372     }
 373     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 374     g_free(t);
 375 }
 376
 377 void
 378 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 379 {
 380     struct Client *c = (struct Client *)data;
 381     gdouble p;
 382
 383     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 384     if (p == 1)
 385     {
 386         p = 0;
 387
 388         /* The page has loaded fully. We now run a short JavaScript
 389          * snippet that operates on the DOM. It tries to grab all
 390          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 391          * references. */
 392         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 393                                        grab_feeds, NULL,
 394                                        grab_feeds_finished, c);
 395     }
 396     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 397 }
 398
 399 void
 400 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 401 {
 402     const gchar *t, *u;
 403     struct Client *c = (struct Client *)data;
 404
 405     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 406     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 407
 408     u = u == NULL ? __NAME__ : u;
 409     u = u[0] == 0 ? __NAME__ : u;
 410
 411     t = t == NULL ? u : t;
 412     t = t[0] == 0 ? u : t;
 413
 414     gtk_window_set_title(GTK_WINDOW(c->win), t);
 415 }
 416
 417 void
 418 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 419 {
 420     const gchar *t;
 421     struct Client *c = (struct Client *)data;
 422     FILE *fp;
 423
 424     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 425
 426     /* When a web process crashes, we get a "notify::uri" signal, but we
 427      * can no longer read a meaningful URI. It's just an empty string
 428      * now. Not updating the location bar in this scenario is important,
 429      * because we would override the "WEB PROCESS CRASHED" message. */
 430     if (t != NULL && strlen(t) > 0)
 431     {
 432         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 433
 434         if (history_file != NULL)
 435         {
 436             fp = fopen(history_file, "a");
 437             if (fp != NULL)
 438             {
 439                 fprintf(fp, "%s\n", t);
 440                 fclose(fp);
 441             }
 442             else
 443                 perror(__NAME__": Error opening history file");
 444         }
 445     }
 446 }
 447
 448 gboolean
 449 crashed_web_view(WebKitWebView *web_view, gpointer data)
 450 {
 451     gchar *t;
 452     struct Client *c = (struct Client *)data;
 453
 454     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 455                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 456     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 457     g_free(t);
 458
 459     return TRUE;
 460 }
 461
 462 gboolean
 463 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 464               WebKitPolicyDecisionType type, gpointer data)
 465 {
 466     WebKitResponsePolicyDecision *r;
 467
 468     switch (type)
 469     {
 470         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 471             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 472             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 473                 webkit_policy_decision_download(decision);
 474             else
 475                 webkit_policy_decision_use(decision);
 476             break;
 477         default:
 478             /* Use whatever default there is. */
 479             return FALSE;
 480     }
 481     return TRUE;
 482 }
 483
 484 void
 485 download_handle_finished(WebKitDownload *download, gpointer data)
 486 {
 487     downloads--;
 488 }
 489
 490 void
 491 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 492                       gpointer data)
 493 {
 494     g_signal_connect(G_OBJECT(download), "decide-destination",
 495                      G_CALLBACK(download_handle), data);
 496 }
 497
 498 gboolean
 499 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 500 {
 501     gchar *sug_clean, *path, *path2 = NULL, *uri;
 502     GtkToolItem *tb;
 503     int suffix = 1;
 504     size_t i;
 505
 506     sug_clean = g_strdup(suggested_filename);
 507     for (i = 0; i < strlen(sug_clean); i++)
 508         if (sug_clean[i] == G_DIR_SEPARATOR)
 509             sug_clean[i] = '_';
 510
 511     path = g_build_filename(download_dir, sug_clean, NULL);
 512     path2 = g_strdup(path);
 513     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 514     {
 515         g_free(path2);
 516
 517         path2 = g_strdup_printf("%s.%d", path, suffix);
 518         suffix++;
 519     }
 520
 521     if (suffix == 1000)
 522     {
 523         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 524         webkit_download_cancel(download);
 525     }
 526     else
 527     {
 528         uri = g_filename_to_uri(path2, NULL, NULL);
 529         webkit_download_set_destination(download, uri);
 530         g_free(uri);
 531
 532         tb = gtk_tool_button_new(NULL, NULL);
 533         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 534         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 535         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 536         gtk_widget_show_all(dm.win);
 537
 538         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 539                          G_CALLBACK(changed_download_progress), tb);
 540
 541         downloads++;
 542         g_signal_connect(G_OBJECT(download), "finished",
 543                          G_CALLBACK(download_handle_finished), NULL);
 544
 545         g_object_ref(download);
 546         g_signal_connect(G_OBJECT(tb), "clicked",
 547                          G_CALLBACK(downloadmanager_cancel), download);
 548     }
 549
 550     g_free(sug_clean);
 551     g_free(path);
 552     g_free(path2);
 553
 554     /* Propagate -- to whom it may concern. */
 555     return FALSE;
 556 }
 557
 558 void
 559 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 560 {
 561     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 562
 563     webkit_download_cancel(download);
 564     g_object_unref(download);
 565
 566     gtk_widget_destroy(GTK_WIDGET(tb));
 567 }
 568
 569 gboolean
 570 downloadmanager_delete(GtkWidget *obj, gpointer data)
 571 {
 572     if (!quit_if_nothing_active())
 573         gtk_widget_hide(dm.win);
 574
 575     return TRUE;
 576 }
 577
 578 void
 579 downloadmanager_setup(void)
 580 {
 581     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 582     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 583     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 584     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 585     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 586                      G_CALLBACK(downloadmanager_delete), NULL);
 587     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 588                      G_CALLBACK(key_downloadmanager), NULL);
 589
 590     dm.toolbar = gtk_toolbar_new();
 591     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 592                                    GTK_ORIENTATION_VERTICAL);
 593     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 594     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 595
 596     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 597     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 598                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 599     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 600
 601     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 602 }
 603
 604 gchar *
 605 ensure_uri_scheme(const gchar *t)
 606 {
 607     gchar *f, *fabs;
 608
 609     f = g_ascii_strdown(t, -1);
 610     if (!g_str_has_prefix(f, "http:") &&
 611         !g_str_has_prefix(f, "https:") &&
 612         !g_str_has_prefix(f, "file:") &&
 613         !g_str_has_prefix(f, "about:") &&
 614         !g_str_has_prefix(f, "data:"))
 615     {
 616         g_free(f);
 617         fabs = realpath(t, NULL);
 618         if (fabs != NULL)
 619         {
 620             f = g_strdup_printf("file://%s", fabs);
 621             free(fabs);
 622         }
 623         else
 624             f = g_strdup_printf("http://%s", t);
 625         return f;
 626     }
 627     else
 628         return g_strdup(t);
 629 }
 630
 631 void
 632 external_handler_run(GSimpleAction *simple, GVariant *param, gpointer data)
 633 {
 634     struct Client *c = (struct Client *)data;
 635     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 636     GPid pid;
 637     GError *err = NULL;
 638
 639     (void)simple;
 640     (void)param;
 641
 642     argv[2] = c->external_handler_uri;
 643     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 644                        &pid, &err))
 645     {
 646         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 647                 err->message);
 648         g_error_free(err);
 649     }
 650     else
 651         g_spawn_close_pid(pid);
 652 }
 653
 654 void
 655 grab_environment_configuration(void)
 656 {
 657     const gchar *e;
 658
 659     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 660     if (e != NULL)
 661         accepted_language[0] = g_strdup(e);
 662
 663     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 664     if (e != NULL)
 665         download_dir = g_strdup(e);
 666
 667     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 668     if (e != NULL)
 669         enable_console_to_stdout = TRUE;
 670
 671     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_EXPERIMENTAL_WEBGL");
 672     if (e != NULL)
 673         enable_webgl = TRUE;
 674
 675     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 676     if (e != NULL)
 677         fifo_suffix = g_strdup(e);
 678
 679     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 680     if (e != NULL)
 681         history_file = g_strdup(e);
 682
 683     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 684     if (e != NULL)
 685         home_uri = g_strdup(e);
 686
 687     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 688     if (e != NULL)
 689         user_agent = g_strdup(e);
 690
 691     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 692     if (e != NULL)
 693         global_zoom = atof(e);
 694 }
 695
 696 void
 697 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 698 {
 699     struct Client *c = (struct Client *)data;
 700     WebKitJavascriptResult *js_result;
 701     JSValueRef value;
 702     JSGlobalContextRef context;
 703     GError *err = NULL;
 704     JSStringRef js_str_value;
 705     gsize str_length;
 706
 707     g_free(c->feed_html);
 708     c->feed_html = NULL;
 709
 710     /* This was taken almost verbatim from the example in WebKit's
 711      * documentation. */
 712
 713     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 714                                                       result, &err);
 715     if (!js_result)
 716     {
 717         fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 718         g_error_free(err);
 719         return;
 720     }
 721
 722     context = webkit_javascript_result_get_global_context(js_result);
 723     value = webkit_javascript_result_get_value(js_result);
 724
 725     if (JSValueIsString(context, value))
 726     {
 727         js_str_value = JSValueToStringCopy(context, value, NULL);
 728         str_length = JSStringGetMaximumUTF8CStringSize(js_str_value);
 729         c->feed_html = (gchar *)g_malloc(str_length);
 730         JSStringGetUTF8CString(js_str_value, c->feed_html, str_length);
 731         JSStringRelease(js_str_value);
 732
 733         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 734                                           GTK_ENTRY_ICON_PRIMARY,
 735                                           "application-rss+xml-symbolic");
 736         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 737                                        GTK_ENTRY_ICON_PRIMARY,
 738                                        TRUE);
 739     }
 740     else
 741     {
 742         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 743                                           GTK_ENTRY_ICON_PRIMARY,
 744                                           NULL);
 745     }
 746
 747     webkit_javascript_result_unref(js_result);
 748 }
 749
 750 void
 751 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 752                gpointer data)
 753 {
 754     struct Client *c = (struct Client *)data;
 755
 756     if (!gtk_widget_is_focus(c->location))
 757     {
 758         if (webkit_hit_test_result_context_is_link(ht))
 759         {
 760             gtk_entry_set_text(GTK_ENTRY(c->location),
 761                                webkit_hit_test_result_get_link_uri(ht));
 762
 763             if (c->hover_uri != NULL)
 764                 g_free(c->hover_uri);
 765             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 766         }
 767         else
 768         {
 769             gtk_entry_set_text(GTK_ENTRY(c->location),
 770                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 771
 772             if (c->hover_uri != NULL)
 773                 g_free(c->hover_uri);
 774             c->hover_uri = NULL;
 775         }
 776     }
 777 }
 778
 779 void
 780 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event, gpointer data)
 781 {
 782     struct Client *c = (struct Client *)data;
 783     gchar *d;
 784
 785     if (c->feed_html != NULL)
 786     {
 787         /* What we're actually trying to do is show a simple HTML page
 788          * that lists all the feeds on the current page. The function
 789          * webkit_web_view_load_html() looks like the proper way to do
 790          * that. Sad thing is, it doesn't create a history entry, but
 791          * instead simply replaces the content of the current page. This
 792          * is not what we want.
 793          *
 794          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 795          * mechanism to show my custom HTML snippet *and* create a
 796          * history entry.
 797          *
 798          * [0]: https://tools.ietf.org/html/rfc2397
 799          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 800         d = g_strdup_printf("data:text/html,%s%s%s",
 801                             feed_html_header,
 802                             c->feed_html,
 803                             feed_html_footer);
 804         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 805         g_free(d);
 806     }
 807 }
 808
 809 gboolean
 810 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 811 {
 812     struct Client *c = (struct Client *)data;
 813     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 814     gchar *f;
 815
 816     if (event->type == GDK_KEY_PRESS)
 817     {
 818         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 819         {
 820             switch (((GdkEventKey *)event)->keyval)
 821             {
 822                 case GDK_KEY_q:  /* close window (left hand) */
 823                     gtk_widget_destroy(c->win);
 824                     return TRUE;
 825                 case GDK_KEY_w:  /* home (left hand) */
 826                     f = ensure_uri_scheme(home_uri);
 827                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 828                     g_free(f);
 829                     return TRUE;
 830                 case GDK_KEY_e:  /* new tab (left hand) */
 831                     f = ensure_uri_scheme(home_uri);
 832                     client_new(f, NULL, TRUE);
 833                     g_free(f);
 834                     return TRUE;
 835                 case GDK_KEY_r:  /* reload (left hand) */
 836                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 837                                                         c->web_view));
 838                     return TRUE;
 839                 case GDK_KEY_d:  /* download manager (left hand) */
 840                     gtk_widget_show_all(dm.win);
 841                     return TRUE;
 842                 case GDK_KEY_2:  /* search forward (left hand) */
 843                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 844                     search(c, 1);
 845                     return TRUE;
 846                 case GDK_KEY_3:  /* search backward (left hand) */
 847                     search(c, -1);
 848                     return TRUE;
 849                 case GDK_KEY_l:  /* location (BOTH hands) */
 850                     gtk_widget_grab_focus(c->location);
 851                     return TRUE;
 852                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 853                     gtk_widget_grab_focus(c->location);
 854                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 855                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 856                     return TRUE;
 857                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 858                     trust_user_certs(wc);
 859                     return TRUE;
 860                 case GDK_KEY_x:  /* launch external handler (left hand) */
 861                     if (c->external_handler_uri != NULL)
 862                         g_free(c->external_handler_uri);
 863                     c->external_handler_uri = g_strdup(
 864                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 865                     external_handler_run(NULL, NULL, c);
 866                     return TRUE;
 867             }
 868         }
 869         /* navigate backward (left hand) */
 870         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 871         {
 872             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 873             return TRUE;
 874         }
 875         /* navigate forward (left hand) */
 876         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 877         {
 878             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 879             return TRUE;
 880         }
 881     }
 882
 883     return FALSE;
 884 }
 885
 886 gboolean
 887 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 888 {
 889     if (event->type == GDK_KEY_PRESS)
 890     {
 891         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 892         {
 893             switch (((GdkEventKey *)event)->keyval)
 894             {
 895                 case GDK_KEY_d:  /* close window (left hand) */
 896                 case GDK_KEY_q:
 897                     downloadmanager_delete(dm.win, NULL);
 898                     return TRUE;
 899             }
 900         }
 901     }
 902
 903     return FALSE;
 904 }
 905
 906 gboolean
 907 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 908 {
 909     struct Client *c = (struct Client *)data;
 910     const gchar *t;
 911     gchar *f;
 912
 913     if (key_common(widget, event, data))
 914         return TRUE;
 915
 916     if (event->type == GDK_KEY_PRESS)
 917     {
 918         switch (((GdkEventKey *)event)->keyval)
 919         {
 920             case GDK_KEY_KP_Enter:
 921             case GDK_KEY_Return:
 922                 gtk_widget_grab_focus(c->web_view);
 923                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 924                 if (t != NULL && t[0] == ':' && t[1] == '/')
 925                 {
 926                     if (search_text != NULL)
 927                         g_free(search_text);
 928                     search_text = g_strdup(t + 2);
 929                     search(c, 0);
 930                 }
 931                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 932                 {
 933                     f = ensure_uri_scheme(t);
 934                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 935                     g_free(f);
 936                 }
 937                 return TRUE;
 938             case GDK_KEY_Escape:
 939                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 940                 gtk_entry_set_text(GTK_ENTRY(c->location),
 941                                    (t == NULL ? __NAME__ : t));
 942                 return TRUE;
 943         }
 944     }
 945
 946     return FALSE;
 947 }
 948
 949 gboolean
 950 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 951 {
 952     struct Client *c = (struct Client *)data;
 953     gdouble dx, dy;
 954     gfloat z;
 955
 956     if (key_common(widget, event, data))
 957         return TRUE;
 958
 959     if (event->type == GDK_KEY_PRESS)
 960     {
 961         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 962         {
 963             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 964             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 965         }
 966     }
 967     else if (event->type == GDK_BUTTON_RELEASE)
 968     {
 969         switch (((GdkEventButton *)event)->button)
 970         {
 971             case 2:
 972                 if (c->hover_uri != NULL)
 973                 {
 974                     client_new(c->hover_uri, NULL, TRUE);
 975                     return TRUE;
 976                 }
 977                 break;
 978             case 8:
 979                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 980                 return TRUE;
 981             case 9:
 982                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 983                 return TRUE;
 984         }
 985     }
 986     else if (event->type == GDK_SCROLL)
 987     {
 988         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
 989             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
 990         {
 991             gdk_event_get_scroll_deltas(event, &dx, &dy);
 992             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 993             z += -dy * 0.1;
 994             z = dx != 0 ? global_zoom : z;
 995             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
 996             return TRUE;
 997         }
 998     }
 999
1000     return FALSE;
1001 }
1002
1003 void
1004 keywords_load(void)
1005 {
1006     GError *err = NULL;
1007     GIOChannel *channel = NULL;
1008     gchar *path = NULL, *buf = NULL;
1009     gchar **tokens = NULL;
1010
1011     keywords = g_hash_table_new(g_str_hash, g_str_equal);
1012
1013     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
1014                             NULL);
1015     channel = g_io_channel_new_file(path, "r", &err);
1016     if (channel != NULL)
1017     {
1018         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
1019                == G_IO_STATUS_NORMAL)
1020         {
1021             g_strstrip(buf);
1022             if (buf[0] != '#')
1023             {
1024                 tokens = g_strsplit(buf, " ", 2);
1025                 if (tokens[0] != NULL && tokens[1] != NULL)
1026                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
1027                                         g_strdup(tokens[1]));
1028                 g_strfreev(tokens);
1029             }
1030             g_free(buf);
1031         }
1032         g_io_channel_shutdown(channel, FALSE, NULL);
1033     }
1034     g_free(path);
1035 }
1036
1037 gboolean
1038 keywords_try_search(WebKitWebView *web_view, const gchar *t)
1039 {
1040     gboolean ret = FALSE;
1041     gchar **tokens = NULL;
1042     gchar *val = NULL, *escaped = NULL, *uri = NULL;
1043
1044     tokens = g_strsplit(t, " ", 2);
1045     if (tokens[0] != NULL && tokens[1] != NULL)
1046     {
1047         val = g_hash_table_lookup(keywords, tokens[0]);
1048         if (val != NULL)
1049         {
1050             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
1051             uri = g_strdup_printf((gchar *)val, escaped);
1052             webkit_web_view_load_uri(web_view, uri);
1053             g_free(uri);
1054             g_free(escaped);
1055             ret = TRUE;
1056         }
1057     }
1058     g_strfreev(tokens);
1059
1060     return ret;
1061 }
1062
1063 gboolean
1064 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
1065               WebKitHitTestResult *ht, gpointer data)
1066 {
1067     struct Client *c = (struct Client *)data;
1068     GSimpleAction *action = NULL;
1069     WebKitContextMenuItem *mi = NULL;
1070     const gchar *uri = NULL;
1071
1072     (void)ev;
1073
1074     if (webkit_hit_test_result_context_is_link(ht))
1075         uri = webkit_hit_test_result_get_link_uri(ht);
1076     else if (webkit_hit_test_result_context_is_image(ht))
1077         uri = webkit_hit_test_result_get_image_uri(ht);
1078     else if (webkit_hit_test_result_context_is_media(ht))
1079         uri = webkit_hit_test_result_get_media_uri(ht);
1080
1081     if (uri != NULL)
1082     {
1083         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
1084
1085         if (c->external_handler_uri != NULL)
1086             g_free(c->external_handler_uri);
1087         c->external_handler_uri = g_strdup(uri);
1088         action = g_simple_action_new("external_handler", NULL);
1089         g_signal_connect(G_OBJECT(action), "activate",
1090                          G_CALLBACK(external_handler_run), data);
1091         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
1092                                                        "Open with external handler",
1093                                                        NULL);
1094         webkit_context_menu_append(menu, mi);
1095         g_object_unref(action);
1096     }
1097
1098     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
1099     return FALSE;
1100 }
1101
1102 gboolean
1103 quit_if_nothing_active(void)
1104 {
1105     if (clients == 0)
1106     {
1107         if (downloads == 0)
1108         {
1109             gtk_main_quit();
1110             return TRUE;
1111         }
1112         else
1113             gtk_widget_show_all(dm.win);
1114     }
1115
1116     return FALSE;
1117 }
1118
1119 gboolean
1120 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1121 {
1122     gchar *uri = NULL;
1123
1124     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1125     if (uri)
1126     {
1127         g_strstrip(uri);
1128         client_new(uri, NULL, TRUE);
1129         g_free(uri);
1130     }
1131     return TRUE;
1132 }
1133
1134 void
1135 search(gpointer data, gint direction)
1136 {
1137     struct Client *c = (struct Client *)data;
1138     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
1139     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
1140
1141     if (search_text == NULL)
1142         return;
1143
1144     switch (direction)
1145     {
1146         case 0:
1147             webkit_find_controller_search(fc, search_text,
1148                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
1149                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1150                                           G_MAXUINT);
1151             break;
1152         case 1:
1153             webkit_find_controller_search_next(fc);
1154             break;
1155         case -1:
1156             webkit_find_controller_search_previous(fc);
1157             break;
1158     }
1159 }
1160
1161 void
1162 show_web_view(WebKitWebView *web_view, gpointer data)
1163 {
1164     struct Client *c = (struct Client *)data;
1165
1166     (void)web_view;
1167
1168     gtk_widget_grab_focus(c->web_view);
1169     gtk_widget_show_all(c->win);
1170 }
1171
1172 Window
1173 tabbed_launch(void)
1174 {
1175     gint tabbed_stdout;
1176     GIOChannel *tabbed_stdout_channel;
1177     GError *err = NULL;
1178     gchar *output = NULL;
1179     char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
1180     Window plug_into;
1181
1182     if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
1183                                   NULL, NULL, NULL, &tabbed_stdout, NULL,
1184                                   &err))
1185     {
1186         fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
1187         g_error_free(err);
1188         return 0;
1189     }
1190
1191     tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
1192     if (tabbed_stdout_channel == NULL)
1193     {
1194         fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
1195         return 0;
1196     }
1197     g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
1198     g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
1199     if (output == NULL)
1200     {
1201         fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
1202         return 0;
1203     }
1204     g_strstrip(output);
1205     plug_into = strtol(output, NULL, 16);
1206     g_free(output);
1207     if (plug_into == 0)
1208         fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
1209     return plug_into;
1210 }
1211
1212 void
1213 trust_user_certs(WebKitWebContext *wc)
1214 {
1215     GTlsCertificate *cert;
1216     const gchar *basedir, *file, *absfile;
1217     GDir *dir;
1218
1219     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1220     dir = g_dir_open(basedir, 0, NULL);
1221     if (dir != NULL)
1222     {
1223         file = g_dir_read_name(dir);
1224         while (file != NULL)
1225         {
1226             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1227                                        file, NULL);
1228             cert = g_tls_certificate_new_from_file(absfile, NULL);
1229             if (cert == NULL)
1230                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1231             else
1232                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1233             file = g_dir_read_name(dir);
1234         }
1235         g_dir_close(dir);
1236     }
1237 }
1238
1239
1240 int
1241 main(int argc, char **argv)
1242 {
1243     gchar *c;
1244     int opt, i;
1245
1246     gtk_init(&argc, &argv);
1247     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1248         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1249
1250     grab_environment_configuration();
1251
1252     while ((opt = getopt(argc, argv, "e:CT")) != -1)
1253     {
1254         switch (opt)
1255         {
1256             case 'e':
1257                 embed = atol(optarg);
1258                 tabbed_automagic = FALSE;
1259                 break;
1260             case 'C':
1261                 cooperative_instances = FALSE;
1262                 break;
1263             case 'T':
1264                 tabbed_automagic = FALSE;
1265                 break;
1266             default:
1267                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1268                 exit(EXIT_FAILURE);
1269         }
1270     }
1271
1272     keywords_load();
1273     if (cooperative_instances)
1274         cooperation_setup();
1275     downloadmanager_setup();
1276
1277     if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
1278         embed = tabbed_launch();
1279
1280     if (!cooperative_instances || cooperative_alone)
1281     {
1282         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1283                              NULL);
1284         webkit_web_context_set_web_extensions_directory(
1285             webkit_web_context_get_default(), c
1286         );
1287     }
1288
1289     if (optind >= argc)
1290         client_new(home_uri, NULL, TRUE);
1291     else
1292     {
1293         for (i = optind; i < argc; i++)
1294             client_new(argv[i], NULL, TRUE);
1295     }
1296
1297     if (!cooperative_instances || cooperative_alone)
1298         gtk_main();
1299     exit(EXIT_SUCCESS);
1300 }