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 feed_icon(gpointer, gchar *);
  38 static void grab_environment_configuration(void);
  39 static void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  40 static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  41 static void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  42 static gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  43 static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  44 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  45 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  46 static void keywords_load(void);
  47 static gboolean keywords_try_search(WebKitWebView *, const gchar *);
  48 static gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  49                               WebKitHitTestResult *, gpointer);
  50 static gboolean quit_if_nothing_active(void);
  51 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  52 static void search(gpointer, gint);
  53 static void show_web_view(WebKitWebView *, gpointer);
  54 static Window tabbed_launch(void);
  55 static void trust_user_certs(WebKitWebContext *);
  56
  57
  58 struct Client
  59 {
  60     gchar *external_handler_uri;
  61     gchar *hover_uri;
  62     gchar *feed_html;
  63     GtkWidget *location;
  64     GtkWidget *vbox;
  65     GtkWidget *web_view;
  66     GtkWidget *win;
  67 };
  68
  69 struct DownloadManager
  70 {
  71     GtkWidget *scroll;
  72     GtkWidget *toolbar;
  73     GtkWidget *win;
  74 } dm;
  75
  76
  77 static const gchar *accepted_language[2] = { NULL, NULL };
  78 static gint clients = 0, downloads = 0;
  79 static gboolean cooperative_alone = TRUE;
  80 static gboolean cooperative_instances = TRUE;
  81 static int cooperative_pipe_fp = 0;
  82 static gchar *download_dir = "/var/tmp";
  83 static gboolean enable_webgl = FALSE;
  84 static gboolean enable_console_to_stdout = FALSE;
  85 static Window embed = 0;
  86 static gchar *fifo_suffix = "main";
  87 static gdouble global_zoom = 1.0;
  88 static gchar *history_file = NULL;
  89 static gchar *home_uri = "about:blank";
  90 static gboolean initial_wc_setup_done = FALSE;
  91 static GHashTable *keywords = NULL;
  92 static gchar *search_text = NULL;
  93 static gboolean tabbed_automagic = TRUE;
  94 static gchar *user_agent = NULL;
  95
  96 static gchar *feed_html_header =
  97 "<!DOCTYPE html>"
  98 "<html>"
  99 "    <head>"
 100 "        <meta charset=\"UTF-8\">"
 101 "        <title>Feeds</title>"
 102 "    </head>"
 103 "    <body>"
 104 "        <p>Feeds found on this page:</p>"
 105 "        <ul>"
 106 ;
 107
 108 static gchar *feed_html_footer =
 109 "        </ul>"
 110 "    </body>"
 111 "</html>"
 112 ;
 113
 114 static gchar *grab_feeds =
 115 "a = document.querySelectorAll('"
 116 "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 117 "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 118 "');"
 119 "if (a.length == 0)"
 120 "    null;"
 121 "else"
 122 "{"
 123 "    out = '';"
 124 "    for (i = 0; i < a.length; i++)"
 125 "    {"
 126 "        url = encodeURIComponent(a[i].href);"
 127 "        if ('title' in a[i] && a[i].title != '')"
 128 "            title = encodeURIComponent(a[i].title);"
 129 "        else"
 130 "            title = url;"
 131 "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 132 "    }"
 133 "    out;"
 134 "}"
 135 ;
 136
 137
 138 void
 139 client_destroy(GtkWidget *widget, gpointer data)
 140 {
 141     struct Client *c = (struct Client *)data;
 142
 143     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 144                                          changed_load_progress, c);
 145
 146     free(c);
 147     clients--;
 148
 149     quit_if_nothing_active();
 150 }
 151
 152 gboolean
 153 client_destroy_request(WebKitWebView *web_view, gpointer data)
 154 {
 155     struct Client *c = (struct Client *)data;
 156
 157     gtk_widget_destroy(c->win);
 158
 159     return TRUE;
 160 }
 161
 162 WebKitWebView *
 163 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 164 {
 165     struct Client *c;
 166     WebKitWebContext *wc;
 167     gchar *f;
 168
 169     if (uri != NULL && cooperative_instances && !cooperative_alone)
 170     {
 171         f = ensure_uri_scheme(uri);
 172         write(cooperative_pipe_fp, f, strlen(f));
 173         write(cooperative_pipe_fp, "\n", 1);
 174         g_free(f);
 175         return NULL;
 176     }
 177
 178     c = calloc(1, sizeof(struct Client));
 179     if (!c)
 180     {
 181         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 182         exit(EXIT_FAILURE);
 183     }
 184
 185     if (embed != 0)
 186     {
 187         c->win = gtk_plug_new(embed);
 188         if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 189         {
 190             fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 191             gtk_widget_destroy(c->win);
 192             c->win = NULL;
 193             embed = 0;
 194         }
 195     }
 196
 197     if (c->win == NULL)
 198         c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 199
 200     gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 201
 202     g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 203     gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 204
 205     if (related_wv == NULL)
 206         c->web_view = webkit_web_view_new();
 207     else
 208         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 209     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 210
 211     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 212     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 213                      G_CALLBACK(changed_title), c);
 214     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 215                      G_CALLBACK(changed_uri), c);
 216     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 217                      G_CALLBACK(changed_load_progress), c);
 218     g_signal_connect(G_OBJECT(c->web_view), "create",
 219                      G_CALLBACK(client_new_request), NULL);
 220     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 221                      G_CALLBACK(menu_web_view), c);
 222     g_signal_connect(G_OBJECT(c->web_view), "close",
 223                      G_CALLBACK(client_destroy_request), c);
 224     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 225                      G_CALLBACK(decide_policy), NULL);
 226     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 227                      G_CALLBACK(key_web_view), c);
 228     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 229                      G_CALLBACK(key_web_view), c);
 230     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 231                      G_CALLBACK(key_web_view), c);
 232     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 233                      G_CALLBACK(hover_web_view), c);
 234     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 235                      G_CALLBACK(crashed_web_view), c);
 236
 237     if (!initial_wc_setup_done)
 238     {
 239         if (accepted_language[0] != NULL)
 240             webkit_web_context_set_preferred_languages(wc, accepted_language);
 241
 242         g_signal_connect(G_OBJECT(wc), "download-started",
 243                          G_CALLBACK(download_handle_start), NULL);
 244
 245         trust_user_certs(wc);
 246
 247         initial_wc_setup_done = TRUE;
 248     }
 249
 250     if (user_agent != NULL)
 251         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 252                      "user-agent", user_agent, NULL);
 253
 254     if (enable_console_to_stdout)
 255         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 256
 257     if (enable_webgl)
 258         webkit_settings_set_enable_webgl(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 259
 260     c->location = gtk_entry_new();
 261     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 262                      G_CALLBACK(key_location), c);
 263     g_signal_connect(G_OBJECT(c->location), "icon-release",
 264                      G_CALLBACK(icon_location), c);
 265
 266     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 267     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 268     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 269
 270     gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 271
 272     if (show)
 273         show_web_view(NULL, c);
 274     else
 275         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 276                          G_CALLBACK(show_web_view), c);
 277
 278     if (uri != NULL)
 279     {
 280         f = ensure_uri_scheme(uri);
 281         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 282         g_free(f);
 283     }
 284
 285     clients++;
 286
 287     return WEBKIT_WEB_VIEW(c->web_view);
 288 }
 289
 290 WebKitWebView *
 291 client_new_request(WebKitWebView *web_view,
 292                    WebKitNavigationAction *navigation_action, gpointer data)
 293 {
 294     return client_new(NULL, web_view, FALSE);
 295 }
 296
 297 void
 298 cooperation_setup(void)
 299 {
 300     GIOChannel *towatch;
 301     gchar *fifofilename, *fifopath;
 302
 303     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 304     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 305     g_free(fifofilename);
 306
 307     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 308         mkfifo(fifopath, 0600);
 309
 310     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 311     if (!cooperative_pipe_fp)
 312     {
 313         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 314     }
 315     else
 316     {
 317         if (write(cooperative_pipe_fp, "", 0) == -1)
 318         {
 319             /* Could not do an empty write to the FIFO which means there's
 320              * no one listening. */
 321             close(cooperative_pipe_fp);
 322             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 323             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 324         }
 325         else
 326             cooperative_alone = FALSE;
 327     }
 328
 329     g_free(fifopath);
 330 }
 331
 332 void
 333 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 334 {
 335     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 336     WebKitURIResponse *resp;
 337     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 338     gdouble p, size_mb;
 339     const gchar *uri;
 340     gchar *t, *filename, *base;
 341
 342     p = webkit_download_get_estimated_progress(download);
 343     p = p > 1 ? 1 : p;
 344     p = p < 0 ? 0 : p;
 345     p *= 100;
 346     resp = webkit_download_get_response(download);
 347     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 348
 349     uri = webkit_download_get_destination(download);
 350     filename = g_filename_from_uri(uri, NULL, NULL);
 351     if (filename == NULL)
 352     {
 353         /* This really should not happen because WebKit uses that URI to
 354          * write to a file... */
 355         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 356         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 357                             webkit_uri_response_get_uri(resp), p, size_mb);
 358     }
 359     else
 360     {
 361         base = g_path_get_basename(filename);
 362         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 363         g_free(filename);
 364         g_free(base);
 365     }
 366     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 367     g_free(t);
 368 }
 369
 370 void
 371 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 372 {
 373     struct Client *c = (struct Client *)data;
 374     gdouble p;
 375
 376     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 377     if (p == 1)
 378     {
 379         p = 0;
 380
 381         /* The page has loaded fully. We now run a short JavaScript
 382          * snippet that operates on the DOM. It tries to grab all
 383          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 384          * references. */
 385         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 386                                        grab_feeds, NULL,
 387                                        grab_feeds_finished, c);
 388     }
 389     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 390 }
 391
 392 void
 393 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 394 {
 395     const gchar *t, *u;
 396     struct Client *c = (struct Client *)data;
 397
 398     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 399     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 400
 401     u = u == NULL ? __NAME__ : u;
 402     u = u[0] == 0 ? __NAME__ : u;
 403
 404     t = t == NULL ? u : t;
 405     t = t[0] == 0 ? u : t;
 406
 407     gtk_window_set_title(GTK_WINDOW(c->win), t);
 408 }
 409
 410 void
 411 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 412 {
 413     const gchar *t;
 414     struct Client *c = (struct Client *)data;
 415     FILE *fp;
 416
 417     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 418
 419     /* When a web process crashes, we get a "notify::uri" signal, but we
 420      * can no longer read a meaningful URI. It's just an empty string
 421      * now. Not updating the location bar in this scenario is important,
 422      * because we would override the "WEB PROCESS CRASHED" message. */
 423     if (t != NULL && strlen(t) > 0)
 424     {
 425         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 426
 427         if (history_file != NULL)
 428         {
 429             fp = fopen(history_file, "a");
 430             if (fp != NULL)
 431             {
 432                 fprintf(fp, "%s\n", t);
 433                 fclose(fp);
 434             }
 435             else
 436                 perror(__NAME__": Error opening history file");
 437         }
 438     }
 439 }
 440
 441 gboolean
 442 crashed_web_view(WebKitWebView *web_view, gpointer data)
 443 {
 444     gchar *t;
 445     struct Client *c = (struct Client *)data;
 446
 447     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 448                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 449     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 450     g_free(t);
 451
 452     return TRUE;
 453 }
 454
 455 gboolean
 456 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 457               WebKitPolicyDecisionType type, gpointer data)
 458 {
 459     WebKitResponsePolicyDecision *r;
 460
 461     switch (type)
 462     {
 463         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 464             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 465             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 466                 webkit_policy_decision_download(decision);
 467             else
 468                 webkit_policy_decision_use(decision);
 469             break;
 470         default:
 471             /* Use whatever default there is. */
 472             return FALSE;
 473     }
 474     return TRUE;
 475 }
 476
 477 void
 478 download_handle_finished(WebKitDownload *download, gpointer data)
 479 {
 480     downloads--;
 481 }
 482
 483 void
 484 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 485                       gpointer data)
 486 {
 487     g_signal_connect(G_OBJECT(download), "decide-destination",
 488                      G_CALLBACK(download_handle), data);
 489 }
 490
 491 gboolean
 492 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 493 {
 494     gchar *sug_clean, *path, *path2 = NULL, *uri;
 495     GtkToolItem *tb;
 496     int suffix = 1;
 497     size_t i;
 498
 499     sug_clean = g_strdup(suggested_filename);
 500     for (i = 0; i < strlen(sug_clean); i++)
 501         if (sug_clean[i] == G_DIR_SEPARATOR)
 502             sug_clean[i] = '_';
 503
 504     path = g_build_filename(download_dir, sug_clean, NULL);
 505     path2 = g_strdup(path);
 506     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 507     {
 508         g_free(path2);
 509
 510         path2 = g_strdup_printf("%s.%d", path, suffix);
 511         suffix++;
 512     }
 513
 514     if (suffix == 1000)
 515     {
 516         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 517         webkit_download_cancel(download);
 518     }
 519     else
 520     {
 521         uri = g_filename_to_uri(path2, NULL, NULL);
 522         webkit_download_set_destination(download, uri);
 523         g_free(uri);
 524
 525         tb = gtk_tool_button_new(NULL, NULL);
 526         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 527         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 528         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 529         gtk_widget_show_all(dm.win);
 530
 531         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 532                          G_CALLBACK(changed_download_progress), tb);
 533
 534         downloads++;
 535         g_signal_connect(G_OBJECT(download), "finished",
 536                          G_CALLBACK(download_handle_finished), NULL);
 537
 538         g_object_ref(download);
 539         g_signal_connect(G_OBJECT(tb), "clicked",
 540                          G_CALLBACK(downloadmanager_cancel), download);
 541     }
 542
 543     g_free(sug_clean);
 544     g_free(path);
 545     g_free(path2);
 546
 547     /* Propagate -- to whom it may concern. */
 548     return FALSE;
 549 }
 550
 551 void
 552 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 553 {
 554     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 555
 556     webkit_download_cancel(download);
 557     g_object_unref(download);
 558
 559     gtk_widget_destroy(GTK_WIDGET(tb));
 560 }
 561
 562 gboolean
 563 downloadmanager_delete(GtkWidget *obj, gpointer data)
 564 {
 565     if (!quit_if_nothing_active())
 566         gtk_widget_hide(dm.win);
 567
 568     return TRUE;
 569 }
 570
 571 void
 572 downloadmanager_setup(void)
 573 {
 574     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 575     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 576     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 577     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 578     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 579                      G_CALLBACK(downloadmanager_delete), NULL);
 580     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 581                      G_CALLBACK(key_downloadmanager), NULL);
 582
 583     dm.toolbar = gtk_toolbar_new();
 584     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 585                                    GTK_ORIENTATION_VERTICAL);
 586     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 587     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 588
 589     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 590     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 591                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 592     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 593
 594     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 595 }
 596
 597 gchar *
 598 ensure_uri_scheme(const gchar *t)
 599 {
 600     gchar *f, *fabs;
 601
 602     f = g_ascii_strdown(t, -1);
 603     if (!g_str_has_prefix(f, "http:") &&
 604         !g_str_has_prefix(f, "https:") &&
 605         !g_str_has_prefix(f, "file:") &&
 606         !g_str_has_prefix(f, "about:") &&
 607         !g_str_has_prefix(f, "data:"))
 608     {
 609         g_free(f);
 610         fabs = realpath(t, NULL);
 611         if (fabs != NULL)
 612         {
 613             f = g_strdup_printf("file://%s", fabs);
 614             free(fabs);
 615         }
 616         else
 617             f = g_strdup_printf("http://%s", t);
 618         return f;
 619     }
 620     else
 621         return g_strdup(t);
 622 }
 623
 624 void
 625 external_handler_run(GSimpleAction *simple, GVariant *param, gpointer data)
 626 {
 627     struct Client *c = (struct Client *)data;
 628     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 629     GPid pid;
 630     GError *err = NULL;
 631
 632     (void)simple;
 633     (void)param;
 634
 635     argv[2] = c->external_handler_uri;
 636     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 637                        &pid, &err))
 638     {
 639         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 640                 err->message);
 641         g_error_free(err);
 642     }
 643     else
 644         g_spawn_close_pid(pid);
 645 }
 646
 647 void feed_icon(gpointer user_data, gchar *feed_html)
 648 {
 649     struct Client *c = (struct Client *)user_data;
 650
 651     if (feed_html != NULL)
 652     {
 653         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 654                                           GTK_ENTRY_ICON_PRIMARY,
 655                                           "application-rss+xml-symbolic");
 656         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 657                                        GTK_ENTRY_ICON_PRIMARY,
 658                                        TRUE);
 659
 660         if (c->feed_html != NULL)
 661             g_free(c->feed_html);
 662         c->feed_html = g_strdup(feed_html);
 663     }
 664     else
 665     {
 666         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 667                                           GTK_ENTRY_ICON_PRIMARY,
 668                                           NULL);
 669     }
 670 }
 671
 672 void
 673 grab_environment_configuration(void)
 674 {
 675     const gchar *e;
 676
 677     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 678     if (e != NULL)
 679         accepted_language[0] = g_strdup(e);
 680
 681     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 682     if (e != NULL)
 683         download_dir = g_strdup(e);
 684
 685     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 686     if (e != NULL)
 687         enable_console_to_stdout = TRUE;
 688
 689     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_EXPERIMENTAL_WEBGL");
 690     if (e != NULL)
 691         enable_webgl = TRUE;
 692
 693     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 694     if (e != NULL)
 695         fifo_suffix = g_strdup(e);
 696
 697     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 698     if (e != NULL)
 699         history_file = g_strdup(e);
 700
 701     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 702     if (e != NULL)
 703         home_uri = g_strdup(e);
 704
 705     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 706     if (e != NULL)
 707         user_agent = g_strdup(e);
 708
 709     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 710     if (e != NULL)
 711         global_zoom = atof(e);
 712 }
 713
 714 void
 715 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 716 {
 717     WebKitJavascriptResult *js_result;
 718     JSValueRef value;
 719     JSGlobalContextRef context;
 720     GError *err = NULL;
 721     JSStringRef js_str_value;
 722     gchar *str_value;
 723     gsize str_length;
 724
 725     /* This was taken almost verbatim from the example in WebKit's
 726      * documentation. */
 727
 728     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 729                                                       result, &err);
 730     if (!js_result)
 731     {
 732         fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 733         g_error_free(err);
 734         return;
 735     }
 736
 737     context = webkit_javascript_result_get_global_context(js_result);
 738     value = webkit_javascript_result_get_value(js_result);
 739
 740     if (JSValueIsString(context, value))
 741     {
 742         js_str_value = JSValueToStringCopy(context, value, NULL);
 743         str_length = JSStringGetMaximumUTF8CStringSize(js_str_value);
 744         str_value = (gchar *)g_malloc(str_length);
 745         JSStringGetUTF8CString(js_str_value, str_value, str_length);
 746         JSStringRelease(js_str_value);
 747         feed_icon(data, str_value);
 748         g_free(str_value);
 749     }
 750     else
 751         feed_icon(data, NULL);
 752
 753     webkit_javascript_result_unref(js_result);
 754 }
 755
 756 void
 757 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 758                gpointer data)
 759 {
 760     struct Client *c = (struct Client *)data;
 761
 762     if (!gtk_widget_is_focus(c->location))
 763     {
 764         if (webkit_hit_test_result_context_is_link(ht))
 765         {
 766             gtk_entry_set_text(GTK_ENTRY(c->location),
 767                                webkit_hit_test_result_get_link_uri(ht));
 768
 769             if (c->hover_uri != NULL)
 770                 g_free(c->hover_uri);
 771             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 772         }
 773         else
 774         {
 775             gtk_entry_set_text(GTK_ENTRY(c->location),
 776                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 777
 778             if (c->hover_uri != NULL)
 779                 g_free(c->hover_uri);
 780             c->hover_uri = NULL;
 781         }
 782     }
 783 }
 784
 785 void
 786 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event, gpointer data)
 787 {
 788     struct Client *c = (struct Client *)data;
 789     gchar *d;
 790
 791     if (c->feed_html != NULL)
 792     {
 793         /* What we're actually trying to do is show a simple HTML page
 794          * that lists all the feeds on the current page. The function
 795          * webkit_web_view_load_html() looks like the proper way to do
 796          * that. Sad thing is, it doesn't create a history entry, but
 797          * instead simply replaces the content of the current page. This
 798          * is not what we want.
 799          *
 800          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 801          * mechanism to show my custom HTML snippet *and* create a
 802          * history entry.
 803          *
 804          * [0]: https://tools.ietf.org/html/rfc2397
 805          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 806         d = g_strdup_printf("data:text/html,%s%s%s",
 807                             feed_html_header,
 808                             c->feed_html,
 809                             feed_html_footer);
 810         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 811         g_free(d);
 812     }
 813 }
 814
 815 gboolean
 816 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 817 {
 818     struct Client *c = (struct Client *)data;
 819     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 820     gchar *f;
 821
 822     if (event->type == GDK_KEY_PRESS)
 823     {
 824         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 825         {
 826             switch (((GdkEventKey *)event)->keyval)
 827             {
 828                 case GDK_KEY_q:  /* close window (left hand) */
 829                     gtk_widget_destroy(c->win);
 830                     return TRUE;
 831                 case GDK_KEY_w:  /* home (left hand) */
 832                     f = ensure_uri_scheme(home_uri);
 833                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 834                     g_free(f);
 835                     return TRUE;
 836                 case GDK_KEY_e:  /* new tab (left hand) */
 837                     f = ensure_uri_scheme(home_uri);
 838                     client_new(f, NULL, TRUE);
 839                     g_free(f);
 840                     return TRUE;
 841                 case GDK_KEY_r:  /* reload (left hand) */
 842                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 843                                                         c->web_view));
 844                     return TRUE;
 845                 case GDK_KEY_d:  /* download manager (left hand) */
 846                     gtk_widget_show_all(dm.win);
 847                     return TRUE;
 848                 case GDK_KEY_2:  /* search forward (left hand) */
 849                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 850                     search(c, 1);
 851                     return TRUE;
 852                 case GDK_KEY_3:  /* search backward (left hand) */
 853                     search(c, -1);
 854                     return TRUE;
 855                 case GDK_KEY_l:  /* location (BOTH hands) */
 856                     gtk_widget_grab_focus(c->location);
 857                     return TRUE;
 858                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 859                     gtk_widget_grab_focus(c->location);
 860                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 861                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 862                     return TRUE;
 863                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 864                     trust_user_certs(wc);
 865                     return TRUE;
 866                 case GDK_KEY_x:  /* launch external handler (left hand) */
 867                     if (c->external_handler_uri != NULL)
 868                         g_free(c->external_handler_uri);
 869                     c->external_handler_uri = g_strdup(
 870                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 871                     external_handler_run(NULL, NULL, c);
 872                     return TRUE;
 873             }
 874         }
 875         /* navigate backward (left hand) */
 876         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 877         {
 878             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 879             return TRUE;
 880         }
 881         /* navigate forward (left hand) */
 882         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 883         {
 884             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 885             return TRUE;
 886         }
 887     }
 888
 889     return FALSE;
 890 }
 891
 892 gboolean
 893 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 894 {
 895     if (event->type == GDK_KEY_PRESS)
 896     {
 897         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 898         {
 899             switch (((GdkEventKey *)event)->keyval)
 900             {
 901                 case GDK_KEY_d:  /* close window (left hand) */
 902                 case GDK_KEY_q:
 903                     downloadmanager_delete(dm.win, NULL);
 904                     return TRUE;
 905             }
 906         }
 907     }
 908
 909     return FALSE;
 910 }
 911
 912 gboolean
 913 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 914 {
 915     struct Client *c = (struct Client *)data;
 916     const gchar *t;
 917     gchar *f;
 918
 919     if (key_common(widget, event, data))
 920         return TRUE;
 921
 922     if (event->type == GDK_KEY_PRESS)
 923     {
 924         switch (((GdkEventKey *)event)->keyval)
 925         {
 926             case GDK_KEY_KP_Enter:
 927             case GDK_KEY_Return:
 928                 gtk_widget_grab_focus(c->web_view);
 929                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 930                 if (t != NULL && t[0] == ':' && t[1] == '/')
 931                 {
 932                     if (search_text != NULL)
 933                         g_free(search_text);
 934                     search_text = g_strdup(t + 2);
 935                     search(c, 0);
 936                 }
 937                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 938                 {
 939                     f = ensure_uri_scheme(t);
 940                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 941                     g_free(f);
 942                 }
 943                 return TRUE;
 944             case GDK_KEY_Escape:
 945                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 946                 gtk_entry_set_text(GTK_ENTRY(c->location),
 947                                    (t == NULL ? __NAME__ : t));
 948                 return TRUE;
 949         }
 950     }
 951
 952     return FALSE;
 953 }
 954
 955 gboolean
 956 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 957 {
 958     struct Client *c = (struct Client *)data;
 959     gdouble dx, dy;
 960     gfloat z;
 961
 962     if (key_common(widget, event, data))
 963         return TRUE;
 964
 965     if (event->type == GDK_KEY_PRESS)
 966     {
 967         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 968         {
 969             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 970             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 971         }
 972     }
 973     else if (event->type == GDK_BUTTON_RELEASE)
 974     {
 975         switch (((GdkEventButton *)event)->button)
 976         {
 977             case 2:
 978                 if (c->hover_uri != NULL)
 979                 {
 980                     client_new(c->hover_uri, NULL, TRUE);
 981                     return TRUE;
 982                 }
 983                 break;
 984             case 8:
 985                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 986                 return TRUE;
 987             case 9:
 988                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 989                 return TRUE;
 990         }
 991     }
 992     else if (event->type == GDK_SCROLL)
 993     {
 994         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
 995             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
 996         {
 997             gdk_event_get_scroll_deltas(event, &dx, &dy);
 998             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 999             z += -dy * 0.1;
1000             z = dx != 0 ? global_zoom : z;
1001             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1002             return TRUE;
1003         }
1004     }
1005
1006     return FALSE;
1007 }
1008
1009 void
1010 keywords_load(void)
1011 {
1012     GError *err = NULL;
1013     GIOChannel *channel = NULL;
1014     gchar *path = NULL, *buf = NULL;
1015     gchar **tokens = NULL;
1016
1017     keywords = g_hash_table_new(g_str_hash, g_str_equal);
1018
1019     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
1020                             NULL);
1021     channel = g_io_channel_new_file(path, "r", &err);
1022     if (channel != NULL)
1023     {
1024         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
1025                == G_IO_STATUS_NORMAL)
1026         {
1027             g_strstrip(buf);
1028             if (buf[0] != '#')
1029             {
1030                 tokens = g_strsplit(buf, " ", 2);
1031                 if (tokens[0] != NULL && tokens[1] != NULL)
1032                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
1033                                         g_strdup(tokens[1]));
1034                 g_strfreev(tokens);
1035             }
1036             g_free(buf);
1037         }
1038         g_io_channel_shutdown(channel, FALSE, NULL);
1039     }
1040     g_free(path);
1041 }
1042
1043 gboolean
1044 keywords_try_search(WebKitWebView *web_view, const gchar *t)
1045 {
1046     gboolean ret = FALSE;
1047     gchar **tokens = NULL;
1048     gchar *val = NULL, *escaped = NULL, *uri = NULL;
1049
1050     tokens = g_strsplit(t, " ", 2);
1051     if (tokens[0] != NULL && tokens[1] != NULL)
1052     {
1053         val = g_hash_table_lookup(keywords, tokens[0]);
1054         if (val != NULL)
1055         {
1056             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
1057             uri = g_strdup_printf((gchar *)val, escaped);
1058             webkit_web_view_load_uri(web_view, uri);
1059             g_free(uri);
1060             g_free(escaped);
1061             ret = TRUE;
1062         }
1063     }
1064     g_strfreev(tokens);
1065
1066     return ret;
1067 }
1068
1069 gboolean
1070 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
1071               WebKitHitTestResult *ht, gpointer data)
1072 {
1073     struct Client *c = (struct Client *)data;
1074     GSimpleAction *action = NULL;
1075     WebKitContextMenuItem *mi = NULL;
1076     const gchar *uri = NULL;
1077
1078     (void)ev;
1079
1080     if (webkit_hit_test_result_context_is_link(ht))
1081         uri = webkit_hit_test_result_get_link_uri(ht);
1082     else if (webkit_hit_test_result_context_is_image(ht))
1083         uri = webkit_hit_test_result_get_image_uri(ht);
1084     else if (webkit_hit_test_result_context_is_media(ht))
1085         uri = webkit_hit_test_result_get_media_uri(ht);
1086
1087     if (uri != NULL)
1088     {
1089         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
1090
1091         if (c->external_handler_uri != NULL)
1092             g_free(c->external_handler_uri);
1093         c->external_handler_uri = g_strdup(uri);
1094         action = g_simple_action_new("external_handler", NULL);
1095         g_signal_connect(G_OBJECT(action), "activate",
1096                          G_CALLBACK(external_handler_run), data);
1097         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
1098                                                        "Open with external handler",
1099                                                        NULL);
1100         webkit_context_menu_append(menu, mi);
1101         g_object_unref(action);
1102     }
1103
1104     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
1105     return FALSE;
1106 }
1107
1108 gboolean
1109 quit_if_nothing_active(void)
1110 {
1111     if (clients == 0)
1112     {
1113         if (downloads == 0)
1114         {
1115             gtk_main_quit();
1116             return TRUE;
1117         }
1118         else
1119             gtk_widget_show_all(dm.win);
1120     }
1121
1122     return FALSE;
1123 }
1124
1125 gboolean
1126 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1127 {
1128     gchar *uri = NULL;
1129
1130     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1131     if (uri)
1132     {
1133         g_strstrip(uri);
1134         client_new(uri, NULL, TRUE);
1135         g_free(uri);
1136     }
1137     return TRUE;
1138 }
1139
1140 void
1141 search(gpointer data, gint direction)
1142 {
1143     struct Client *c = (struct Client *)data;
1144     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
1145     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
1146
1147     if (search_text == NULL)
1148         return;
1149
1150     switch (direction)
1151     {
1152         case 0:
1153             webkit_find_controller_search(fc, search_text,
1154                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
1155                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1156                                           G_MAXUINT);
1157             break;
1158         case 1:
1159             webkit_find_controller_search_next(fc);
1160             break;
1161         case -1:
1162             webkit_find_controller_search_previous(fc);
1163             break;
1164     }
1165 }
1166
1167 void
1168 show_web_view(WebKitWebView *web_view, gpointer data)
1169 {
1170     struct Client *c = (struct Client *)data;
1171
1172     (void)web_view;
1173
1174     gtk_widget_grab_focus(c->web_view);
1175     gtk_widget_show_all(c->win);
1176 }
1177
1178 Window
1179 tabbed_launch(void)
1180 {
1181     gint tabbed_stdout;
1182     GIOChannel *tabbed_stdout_channel;
1183     GError *err = NULL;
1184     gchar *output = NULL;
1185     char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
1186     Window plug_into;
1187
1188     if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
1189                                   NULL, NULL, NULL, &tabbed_stdout, NULL,
1190                                   &err))
1191     {
1192         fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
1193         g_error_free(err);
1194         return 0;
1195     }
1196
1197     tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
1198     if (tabbed_stdout_channel == NULL)
1199     {
1200         fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
1201         return 0;
1202     }
1203     g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
1204     g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
1205     if (output == NULL)
1206     {
1207         fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
1208         return 0;
1209     }
1210     g_strstrip(output);
1211     plug_into = strtol(output, NULL, 16);
1212     g_free(output);
1213     if (plug_into == 0)
1214         fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
1215     return plug_into;
1216 }
1217
1218 void
1219 trust_user_certs(WebKitWebContext *wc)
1220 {
1221     GTlsCertificate *cert;
1222     const gchar *basedir, *file, *absfile;
1223     GDir *dir;
1224
1225     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1226     dir = g_dir_open(basedir, 0, NULL);
1227     if (dir != NULL)
1228     {
1229         file = g_dir_read_name(dir);
1230         while (file != NULL)
1231         {
1232             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1233                                        file, NULL);
1234             cert = g_tls_certificate_new_from_file(absfile, NULL);
1235             if (cert == NULL)
1236                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1237             else
1238                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1239             file = g_dir_read_name(dir);
1240         }
1241         g_dir_close(dir);
1242     }
1243 }
1244
1245
1246 int
1247 main(int argc, char **argv)
1248 {
1249     gchar *c;
1250     int opt, i;
1251
1252     gtk_init(&argc, &argv);
1253     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1254         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1255
1256     grab_environment_configuration();
1257
1258     while ((opt = getopt(argc, argv, "e:CT")) != -1)
1259     {
1260         switch (opt)
1261         {
1262             case 'e':
1263                 embed = atol(optarg);
1264                 tabbed_automagic = FALSE;
1265                 break;
1266             case 'C':
1267                 cooperative_instances = FALSE;
1268                 break;
1269             case 'T':
1270                 tabbed_automagic = FALSE;
1271                 break;
1272             default:
1273                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1274                 exit(EXIT_FAILURE);
1275         }
1276     }
1277
1278     keywords_load();
1279     if (cooperative_instances)
1280         cooperation_setup();
1281     downloadmanager_setup();
1282
1283     if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
1284         embed = tabbed_launch();
1285
1286     if (!cooperative_instances || cooperative_alone)
1287     {
1288         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1289                              NULL);
1290         webkit_web_context_set_web_extensions_directory(
1291             webkit_web_context_get_default(), c
1292         );
1293     }
1294
1295     if (optind >= argc)
1296         client_new(home_uri, NULL, TRUE);
1297     else
1298     {
1299         for (i = optind; i < argc; i++)
1300             client_new(argv[i], NULL, TRUE);
1301     }
1302
1303     if (!cooperative_instances || cooperative_alone)
1304         gtk_main();
1305     exit(EXIT_SUCCESS);
1306 }