browser.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <fcntl.h>
   6 #include <string.h>
   7
   8 #include <gtk/gtk.h>
   9 #include <gdk/gdkx.h>
  10 #include <gdk/gdkkeysyms.h>
  11 #include <gio/gio.h>
  12 #include <webkit/webkit.h>
  13
  14
  15 static void adblock(WebKitWebView *, WebKitWebFrame *, WebKitWebResource *,
  16                     WebKitNetworkRequest *, WebKitNetworkResponse *, gpointer);
  17 static void adblock_load(void);
  18 static void client_destroy(GtkWidget *, gpointer);
  19 static void client_new(const gchar *uri);
  20 static gboolean client_new_request(WebKitWebView *, WebKitWebFrame *,
  21                                    WebKitNetworkRequest *,
  22                                    WebKitWebNavigationAction *,
  23                                    WebKitWebPolicyDecision *, gpointer);
  24 static void cooperation_setup(void);
  25 static void changed_load_status(GObject *obj, GParamSpec *pspec,
  26                                 gpointer data);
  27 static void changed_title(GObject *, GParamSpec *, gpointer);
  28 static void changed_uri(GObject *, GParamSpec *, gpointer);
  29 static gboolean download_request(WebKitWebView *, WebKitWebFrame *,
  30                                  WebKitNetworkRequest *, gchar *,
  31                                  WebKitWebPolicyDecision *, gpointer);
  32 static gboolean download_wget(WebKitWebView *, WebKitDownload *, gpointer);
  33 static gchar *ensure_url_scheme(const gchar *);
  34 static void grab_environment_configuration(void);
  35 static void hover_web_view(WebKitWebView *, gchar *, gchar *, gpointer);
  36 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  37 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  38 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  39 static void search(gpointer, gint);
  40 static void scroll(GtkAdjustment *, gint, gdouble);
  41 static Window tabbed_launch(void);
  42 static void usage(void);
  43
  44
  45 struct Client
  46 {
  47         GtkWidget *win;
  48         GtkWidget *vbox;
  49         GtkWidget *location;
  50         GtkWidget *status;
  51         GtkWidget *scroll;
  52         GtkWidget *web_view;
  53 };
  54
  55
  56 static gchar *accepted_language = "en-US";
  57 static GSList *adblock_patterns = NULL;
  58 static gint clients = 0;
  59 static gboolean cooperative_alone = TRUE;
  60 static gboolean cooperative_instances = TRUE;
  61 static int cooperative_pipe_fp = 0;
  62 static gchar *download_dir = "/tmp";
  63 static Window embed = 0;
  64 static gchar *first_uri = NULL;
  65 static gdouble global_zoom = 1.0;
  66 static gboolean language_is_set = FALSE;
  67 static gchar *search_text = NULL;
  68 static gboolean show_all_requests = FALSE;
  69 static gboolean tabbed_automagic = TRUE;
  70
  71
  72 void
  73 adblock(WebKitWebView *web_view, WebKitWebFrame *frame,
  74         WebKitWebResource *resource, WebKitNetworkRequest *request,
  75         WebKitNetworkResponse *response, gpointer data)
  76 {
  77         GSList *it = adblock_patterns;
  78         const gchar *uri;
  79
  80         (void)web_view;
  81         (void)frame;
  82         (void)resource;
  83         (void)response;
  84         (void)data;
  85
  86         uri = webkit_network_request_get_uri(request);
  87         if (show_all_requests)
  88                 fprintf(stderr, "-> %s\n", uri);
  89
  90         while (it)
  91         {
  92                 if (g_regex_match((GRegex *)(it->data), uri, 0, NULL))
  93                 {
  94                         webkit_network_request_set_uri(request, "about:blank");
  95                         if (show_all_requests)
  96                                 fprintf(stderr, "\tBLOCKED!\n");
  97                         return;
  98                 }
  99                 it = g_slist_next(it);
 100         }
 101 }
 102
 103 void
 104 adblock_load(void)
 105 {
 106         GRegex *re = NULL;
 107         GError *err = NULL;
 108         GIOChannel *channel = NULL;
 109         gchar *path = NULL;
 110         gchar *buf = NULL;
 111
 112         path = g_build_filename(g_get_user_config_dir(), __NAME__, "adblock.black",
 113                                 NULL);
 114         channel = g_io_channel_new_file(path, "r", &err);
 115         if (channel != NULL)
 116         {
 117                 while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
 118                        == G_IO_STATUS_NORMAL)
 119                 {
 120                         g_strstrip(buf);
 121                         re = g_regex_new(buf,
 122                                          G_REGEX_CASELESS | G_REGEX_OPTIMIZE,
 123                                          G_REGEX_MATCH_PARTIAL, &err);
 124                         if (err != NULL)
 125                         {
 126                                 fprintf(stderr, __NAME__": Could not compile regex: %s\n", buf);
 127                                 g_error_free(err);
 128                                 err = NULL;
 129                         }
 130                         adblock_patterns = g_slist_append(adblock_patterns, re);
 131
 132                         g_free(buf);
 133                 }
 134         }
 135         g_free(path);
 136 }
 137
 138 void
 139 client_destroy(GtkWidget *obj, gpointer data)
 140 {
 141         struct Client *c = (struct Client *)data;
 142
 143         (void)obj;
 144
 145         webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 146         gtk_widget_destroy(c->web_view);
 147         gtk_widget_destroy(c->scroll);
 148         gtk_widget_destroy(c->status);
 149         gtk_widget_destroy(c->location);
 150         gtk_widget_destroy(c->vbox);
 151         gtk_widget_destroy(c->win);
 152         free(c);
 153
 154         clients--;
 155         if (clients == 0)
 156                 gtk_main_quit();
 157 }
 158
 159 void
 160 client_new(const gchar *uri)
 161 {
 162         struct Client *c;
 163         gchar *f;
 164
 165         if (cooperative_instances && !cooperative_alone)
 166         {
 167                 write(cooperative_pipe_fp, uri, strlen(uri));
 168                 write(cooperative_pipe_fp, "\n", 1);
 169                 return;
 170         }
 171
 172         c = malloc(sizeof(struct Client));
 173         if (!c)
 174         {
 175                 fprintf(stderr, __NAME__": fatal: malloc failed\n");
 176                 exit(EXIT_FAILURE);
 177         }
 178
 179         c->win = NULL;
 180         if (embed != 0)
 181         {
 182                 c->win = gtk_plug_new(embed);
 183                 if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 184                 {
 185                         fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 186                         gtk_widget_destroy(c->win);
 187                         c->win = NULL;
 188                         embed = 0;
 189                 }
 190         }
 191
 192         if (c->win == NULL)
 193         {
 194                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 195                 gtk_window_set_wmclass(GTK_WINDOW(c->win), __NAME__, __NAME_CAPITALIZED__);
 196         }
 197
 198         /* When using Gtk2, it only shows a white area when run in suckless'
 199          * tabbed. It appears we need to set a default window size for this
 200          * to work. This is not needed when using Gtk3. */
 201         gtk_window_set_default_size(GTK_WINDOW(c->win), 1024, 768);
 202
 203         g_signal_connect(G_OBJECT(c->win), "destroy",
 204                          G_CALLBACK(client_destroy), c);
 205         gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 206
 207         c->web_view = webkit_web_view_new();
 208
 209         /* XXX I really do want to enable this option. However, I get
 210          * reproducable crashes with it enabled. I've seen bug reports from
 211          * 2010 about this... WebKit crashes in libpixman, so maybe it's not
 212          * a WebKit issue.
 213          * Yeah, well. I'll turn it off for now. */
 214         /*webkit_web_view_set_full_content_zoom(WEBKIT_WEB_VIEW(c->web_view), TRUE);*/
 215
 216         webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 217         g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 218                          G_CALLBACK(changed_title), c);
 219         g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 220                          G_CALLBACK(changed_uri), c);
 221         g_signal_connect(G_OBJECT(c->web_view), "notify::load-status",
 222                          G_CALLBACK(changed_load_status), c);
 223         g_signal_connect(G_OBJECT(c->web_view),
 224                          "new-window-policy-decision-requested",
 225                          G_CALLBACK(client_new_request), NULL);
 226         g_signal_connect(G_OBJECT(c->web_view),
 227                          "mime-type-policy-decision-requested",
 228                          G_CALLBACK(download_request), NULL);
 229         g_signal_connect(G_OBJECT(c->web_view), "download-requested",
 230                          G_CALLBACK(download_wget), NULL);
 231         g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 232                          G_CALLBACK(key_web_view), c);
 233         g_signal_connect(G_OBJECT(c->web_view), "button-press-event",
 234                          G_CALLBACK(key_web_view), c);
 235         g_signal_connect(G_OBJECT(c->web_view), "hovering-over-link",
 236                          G_CALLBACK(hover_web_view), c);
 237         g_signal_connect(G_OBJECT(c->web_view), "resource-request-starting",
 238                          G_CALLBACK(adblock), NULL);
 239
 240         if (!language_is_set)
 241         {
 242                 g_object_set(webkit_get_default_session(), "accept-language",
 243                              accepted_language, NULL);
 244                 language_is_set = TRUE;
 245         }
 246
 247         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 248
 249         gtk_container_add(GTK_CONTAINER(c->scroll), c->web_view);
 250
 251         c->location = gtk_entry_new();
 252         g_signal_connect(G_OBJECT(c->location), "key-press-event",
 253                          G_CALLBACK(key_location), c);
 254
 255         c->status = gtk_statusbar_new();
 256         gtk_statusbar_set_has_resize_grip(GTK_STATUSBAR(c->status), FALSE);
 257
 258         c->vbox = gtk_vbox_new(FALSE, 2);
 259         gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 260         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 261         gtk_box_pack_end(GTK_BOX(c->vbox), c->status, FALSE, FALSE, 0);
 262
 263         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 264
 265         gtk_widget_grab_focus(c->web_view);
 266         gtk_widget_show_all(c->win);
 267
 268         f = ensure_url_scheme(uri);
 269         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 270         g_free(f);
 271
 272         clients++;
 273 }
 274
 275 gboolean
 276 client_new_request(WebKitWebView *web_view, WebKitWebFrame *frame,
 277                    WebKitNetworkRequest *request,
 278                    WebKitWebNavigationAction *navigation_action,
 279                    WebKitWebPolicyDecision *policy_decision, gpointer user_data)
 280 {
 281         (void)web_view;
 282         (void)frame;
 283         (void)navigation_action;
 284         (void)user_data;
 285
 286         webkit_web_policy_decision_ignore(policy_decision);
 287         client_new(webkit_network_request_get_uri(request));
 288
 289         return TRUE;
 290 }
 291
 292 void
 293 cooperation_setup(void)
 294 {
 295         GIOChannel *towatch;
 296         gchar *fifopath;
 297
 298         fifopath = g_build_filename(g_get_user_runtime_dir(), __NAME__".fifo", NULL);
 299
 300         if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 301                 mkfifo(fifopath, 0600);
 302
 303         cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 304         if (!cooperative_pipe_fp)
 305         {
 306                 fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 307         }
 308         else
 309         {
 310                 if (write(cooperative_pipe_fp, "", 0) == -1)
 311                 {
 312                         /* Could not do an empty write to the FIFO which means there's
 313                          * no one listening. */
 314                         close(cooperative_pipe_fp);
 315                         towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 316                         g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 317                 }
 318                 else
 319                         cooperative_alone = FALSE;
 320         }
 321
 322         g_free(fifopath);
 323 }
 324
 325 void
 326 changed_load_status(GObject *obj, GParamSpec *pspec, gpointer data)
 327 {
 328         struct Client *c = (struct Client *)data;
 329
 330         (void)obj;
 331         (void)pspec;
 332
 333         if (webkit_web_view_get_load_status(WEBKIT_WEB_VIEW(c->web_view))
 334             == WEBKIT_LOAD_FINISHED)
 335         {
 336                 gtk_statusbar_pop(GTK_STATUSBAR(c->status), 1);
 337                 gtk_statusbar_push(GTK_STATUSBAR(c->status), 1, "Finished.");
 338         }
 339         else
 340         {
 341                 gtk_statusbar_pop(GTK_STATUSBAR(c->status), 1);
 342                 gtk_statusbar_push(GTK_STATUSBAR(c->status), 1, "Loading...");
 343         }
 344 }
 345
 346 void
 347 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 348 {
 349         const gchar *t;
 350         struct Client *c = (struct Client *)data;
 351
 352         (void)obj;
 353         (void)pspec;
 354
 355         t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 356         gtk_window_set_title(GTK_WINDOW(c->win), (t == NULL ? __NAME__ : t));
 357 }
 358
 359 void
 360 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 361 {
 362         const gchar *t;
 363         struct Client *c = (struct Client *)data;
 364
 365         (void)obj;
 366         (void)pspec;
 367
 368         t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 369         gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL ? __NAME__ : t));
 370 }
 371
 372 gboolean
 373 download_request(WebKitWebView *web_view, WebKitWebFrame *frame,
 374                  WebKitNetworkRequest *request, gchar *mime_type,
 375                  WebKitWebPolicyDecision *policy_decision, gpointer data)
 376 {
 377         (void)frame;
 378         (void)request;
 379         (void)data;
 380
 381         if (!webkit_web_view_can_show_mime_type(web_view, mime_type))
 382         {
 383                 webkit_web_policy_decision_download(policy_decision);
 384                 return TRUE;
 385         }
 386         return FALSE;
 387 }
 388
 389 gboolean
 390 download_wget(WebKitWebView *web_view, WebKitDownload *download, gpointer data)
 391 {
 392         const gchar *uri;
 393         char id[16] = "";
 394         gint ret;
 395
 396         (void)web_view;
 397         (void)data;
 398
 399         uri = webkit_download_get_uri(download);
 400         if (fork() == 0)
 401         {
 402                 chdir(download_dir);
 403                 if (embed == 0)
 404                         ret = execlp("xterm", "xterm", "-hold", "-e", "wget", uri, NULL);
 405                 else
 406                 {
 407                         if (snprintf(id, 16, "%ld", embed) >= 16)
 408                         {
 409                                 fprintf(stderr, __NAME__": id for xterm embed truncated!\n");
 410                                 exit(EXIT_FAILURE);
 411                         }
 412                         ret = execlp("xterm", "xterm", "-hold", "-into", id, "-e", "wget",
 413                                      uri, NULL);
 414                 }
 415
 416                 if (ret == -1)
 417                 {
 418                         fprintf(stderr, __NAME__": exec'ing xterm for download");
 419                         perror(" failed");
 420                         exit(EXIT_FAILURE);
 421                 }
 422         }
 423
 424         return FALSE;
 425 }
 426
 427 gchar *
 428 ensure_url_scheme(const gchar *t)
 429 {
 430         gchar *f;
 431
 432         f = g_ascii_strdown(t, -1);
 433         if (!g_str_has_prefix(f, "http:") &&
 434                 !g_str_has_prefix(f, "https:") &&
 435                 !g_str_has_prefix(f, "file:") &&
 436                 !g_str_has_prefix(f, "about:"))
 437         {
 438                 g_free(f);
 439                 f = g_strdup_printf("http://%s", t);
 440                 return f;
 441         }
 442         else
 443                 return g_strdup(t);
 444 }
 445
 446 void
 447 grab_environment_configuration(void)
 448 {
 449         const gchar *e;
 450
 451         e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 452         if (e != NULL)
 453                 accepted_language = g_strdup(e);
 454
 455         e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 456         if (e != NULL)
 457                 download_dir = g_strdup(e);
 458
 459         e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 460         if (e != NULL)
 461                 global_zoom = atof(e);
 462 }
 463
 464 void
 465 hover_web_view(WebKitWebView *web_view, gchar *title, gchar *uri,
 466                    gpointer data)
 467 {
 468         struct Client *c = (struct Client *)data;
 469
 470         (void)web_view;
 471         (void)title;
 472
 473         gtk_statusbar_pop(GTK_STATUSBAR(c->status), 0);
 474         if (uri != NULL)
 475                 gtk_statusbar_push(GTK_STATUSBAR(c->status), 0, uri);
 476 }
 477
 478 gboolean
 479 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 480 {
 481         struct Client *c = (struct Client *)data;
 482         const gchar *t;
 483         gchar *f;
 484
 485         (void)widget;
 486
 487         if (event->type == GDK_KEY_PRESS)
 488         {
 489                 switch (((GdkEventKey *)event)->keyval)
 490                 {
 491                         case GDK_KEY_Return:
 492                                 gtk_widget_grab_focus(c->web_view);
 493                                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 494                                 if (t != NULL && t[0] == '/')
 495                                 {
 496                                         if (search_text != NULL)
 497                                                 g_free(search_text);
 498                                         search_text = g_strdup(t + 1);  /* XXX whacky */
 499                                         search(c, 1);
 500                                 }
 501                                 else
 502                                 {
 503                                         f = ensure_url_scheme(t);
 504                                         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 505                                         g_free(f);
 506                                 }
 507                                 return TRUE;
 508                         case GDK_KEY_Escape:
 509                                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 510                                 gtk_entry_set_text(GTK_ENTRY(c->location),
 511                                                    (t == NULL ? __NAME__ : t));
 512                                 return TRUE;
 513                 }
 514         }
 515
 516         return FALSE;
 517 }
 518
 519 gboolean
 520 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 521 {
 522         struct Client *c = (struct Client *)data;
 523         WebKitHitTestResultContext ht_context;
 524         WebKitHitTestResult *ht_result = NULL;
 525         char *ht_uri =  NULL;
 526
 527         (void)widget;
 528
 529         if (event->type == GDK_KEY_PRESS)
 530         {
 531                 if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK)
 532                 {
 533                         switch (((GdkEventKey *)event)->keyval)
 534                         {
 535                                 case GDK_KEY_o:
 536                                         gtk_widget_grab_focus(c->location);
 537                                         return TRUE;
 538                                 case GDK_KEY_h:
 539                                         scroll(gtk_scrolled_window_get_hadjustment(
 540                                                GTK_SCROLLED_WINDOW(c->scroll)), 0, -1);
 541                                         return TRUE;
 542                                 case GDK_KEY_j:
 543                                         scroll(gtk_scrolled_window_get_vadjustment(
 544                                                GTK_SCROLLED_WINDOW(c->scroll)), 0, 1);
 545                                         return TRUE;
 546                                 case GDK_KEY_k:
 547                                         scroll(gtk_scrolled_window_get_vadjustment(
 548                                                GTK_SCROLLED_WINDOW(c->scroll)), 0, -1);
 549                                         return TRUE;
 550                                 case GDK_KEY_l:
 551                                         scroll(gtk_scrolled_window_get_hadjustment(
 552                                                GTK_SCROLLED_WINDOW(c->scroll)), 0, 1);
 553                                         return TRUE;
 554                                 case GDK_KEY_f:
 555                                         scroll(gtk_scrolled_window_get_vadjustment(
 556                                                GTK_SCROLLED_WINDOW(c->scroll)), 1, 0.5);
 557                                         return TRUE;
 558                                 case GDK_KEY_b:
 559                                         scroll(gtk_scrolled_window_get_vadjustment(
 560                                                GTK_SCROLLED_WINDOW(c->scroll)), 1, -0.5);
 561                                         return TRUE;
 562                                 case GDK_KEY_n:
 563                                         search(c, 1);
 564                                         return TRUE;
 565                                 case GDK_KEY_p:
 566                                         search(c, -1);
 567                                         return TRUE;
 568                                 case GDK_KEY_g:
 569                                         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view),
 570                                                                  first_uri);
 571                                         return TRUE;
 572                         }
 573                 }
 574                 else if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 575                 {
 576                         webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 577                         gtk_statusbar_pop(GTK_STATUSBAR(c->status), 1);
 578                         gtk_statusbar_push(GTK_STATUSBAR(c->status), 1, "Aborted.");
 579                 }
 580         }
 581         else if (event->type == GDK_BUTTON_PRESS)
 582         {
 583                 switch (((GdkEventButton *)event)->button)
 584                 {
 585                         case 2:
 586                                 ht_result = webkit_web_view_get_hit_test_result(
 587                                                                    WEBKIT_WEB_VIEW(c->web_view),
 588                                                                        (GdkEventButton *)event);
 589                                 g_object_get(ht_result, "context", &ht_context, NULL);
 590                                 if (ht_context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK)
 591                                 {
 592                                         g_object_get(ht_result, "link-uri", &ht_uri, NULL);
 593                                         client_new(ht_uri);
 594                                         g_object_unref(ht_result);
 595                                         return TRUE;
 596                                 }
 597                                 g_object_unref(ht_result);
 598                                 return FALSE;
 599                         case 8:
 600                                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 601                                 return TRUE;
 602                         case 9:
 603                                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 604                                 return TRUE;
 605                 }
 606         }
 607
 608         return FALSE;
 609 }
 610
 611 gboolean
 612 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
 613 {
 614         gchar *uri = NULL;
 615
 616         (void)condition;
 617         (void)data;
 618
 619         g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
 620         if (uri)
 621         {
 622                 g_strstrip(uri);
 623                 client_new(uri);
 624                 g_free(uri);
 625         }
 626         return TRUE;
 627 }
 628
 629 void
 630 search(gpointer data, gint direction)
 631 {
 632         struct Client *c = (struct Client *)data;
 633
 634         if (search_text == NULL)
 635                 return;
 636
 637         webkit_web_view_search_text(WEBKIT_WEB_VIEW(c->web_view), search_text,
 638                                     FALSE, direction == 1, TRUE);
 639 }
 640
 641 void
 642 scroll(GtkAdjustment *a, gint step_type, gdouble factor)
 643 {
 644         gdouble new, lower, upper, step;
 645         lower = gtk_adjustment_get_lower(a);
 646         upper = gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a) + lower;
 647         if (step_type == 0)
 648                 step = gtk_adjustment_get_step_increment(a);
 649         else
 650                 step = gtk_adjustment_get_page_increment(a);
 651         new = gtk_adjustment_get_value(a) + factor * step;
 652         new = new < lower ? lower : new;
 653         new = new > upper ? upper : new;
 654         gtk_adjustment_set_value(a, new);
 655 }
 656
 657 Window
 658 tabbed_launch(void)
 659 {
 660         gint tabbed_stdout;
 661         GIOChannel *tabbed_stdout_channel;
 662         GError *err = NULL;
 663         gchar *output = NULL;
 664         char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
 665         Window plug_into;
 666
 667         if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
 668                                       NULL, NULL, NULL, &tabbed_stdout, NULL,
 669                                       &err))
 670         {
 671                 fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
 672                 g_error_free(err);
 673                 return 0;
 674         }
 675
 676         tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
 677         g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
 678         if (output == NULL)
 679         {
 680                 fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
 681                 return 0;
 682         }
 683
 684         g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
 685
 686         g_strstrip(output);
 687         plug_into = strtol(output, NULL, 16);
 688         g_free(output);
 689         return plug_into;
 690 }
 691
 692 void
 693 usage(void)
 694 {
 695         fprintf(stderr, "Usage: "__NAME__" [OPTION]... <URI>...\n");
 696         exit(EXIT_FAILURE);
 697 }
 698
 699
 700 int
 701 main(int argc, char **argv)
 702 {
 703         int opt, i;
 704
 705         gtk_init(&argc, &argv);
 706
 707         grab_environment_configuration();
 708
 709         while ((opt = getopt(argc, argv, "e:rCT")) != -1)
 710         {
 711                 switch (opt)
 712                 {
 713                         case 'e':
 714                                 embed = atol(optarg);
 715                                 tabbed_automagic = FALSE;
 716                                 break;
 717                         case 'r':
 718                                 show_all_requests = TRUE;
 719                                 break;
 720                         case 'C':
 721                                 cooperative_instances = FALSE;
 722                                 break;
 723                         case 'T':
 724                                 tabbed_automagic = FALSE;
 725                                 break;
 726                         default:
 727                                 usage();
 728                 }
 729         }
 730
 731         if (optind >= argc)
 732                 usage();
 733
 734         adblock_load();
 735         cooperation_setup();
 736
 737         if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
 738                 embed = tabbed_launch();
 739
 740         first_uri = g_strdup(argv[optind]);
 741         for (i = optind; i < argc; i++)
 742                 client_new(argv[i]);
 743         if (!cooperative_instances || cooperative_alone)
 744                 gtk_main();
 745         exit(EXIT_SUCCESS);
 746 }