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 *obj, gpointer data);
  19 static gboolean client_destroy_request(WebKitWebView *, gpointer);
  20 static WebKitWebView *client_new(const gchar *uri);
  21 static WebKitWebView *client_new_request(WebKitWebView *, WebKitWebFrame *,
  22                                          gpointer);
  23 static void cooperation_setup(void);
  24 static void changed_load_progress(GObject *obj, GParamSpec *pspec,
  25                                   gpointer data);
  26 static void changed_title(GObject *, GParamSpec *, gpointer);
  27 static void changed_uri(GObject *, GParamSpec *, gpointer);
  28 static gboolean download_handle(WebKitWebView *, WebKitDownload *, gpointer);
  29 static gboolean download_reset_indicator(gpointer);
  30 static gboolean download_request(WebKitWebView *, WebKitWebFrame *,
  31                                  WebKitNetworkRequest *, gchar *,
  32                                  WebKitWebPolicyDecision *, 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 *location;
  48         GtkWidget *progress;
  49         GtkWidget *scroll;
  50         GtkWidget *status;
  51         GtkWidget *top_box;
  52         GtkWidget *vbox;
  53         GtkWidget *web_view;
  54         GtkWidget *win;
  55 };
  56
  57
  58 static gchar *accepted_language = "en-US";
  59 static GSList *adblock_patterns = NULL;
  60 static gint clients = 0;
  61 static gboolean cooperative_alone = TRUE;
  62 static gboolean cooperative_instances = TRUE;
  63 static int cooperative_pipe_fp = 0;
  64 static gchar *download_dir = "/tmp";
  65 static gint downloads_indicated = 0;
  66 static Window embed = 0;
  67 static gchar *first_uri = NULL;
  68 static gdouble global_zoom = 1.0;
  69 static gboolean language_is_set = FALSE;
  70 static gchar *search_text = NULL;
  71 static gboolean show_all_requests = FALSE;
  72 static gboolean tabbed_automagic = TRUE;
  73
  74
  75 void
  76 adblock(WebKitWebView *web_view, WebKitWebFrame *frame,
  77         WebKitWebResource *resource, WebKitNetworkRequest *request,
  78         WebKitNetworkResponse *response, gpointer data)
  79 {
  80         GSList *it = adblock_patterns;
  81         const gchar *uri;
  82
  83         (void)web_view;
  84         (void)frame;
  85         (void)resource;
  86         (void)response;
  87         (void)data;
  88
  89         uri = webkit_network_request_get_uri(request);
  90         if (show_all_requests)
  91                 fprintf(stderr, "   -> %s\n", uri);
  92
  93         while (it)
  94         {
  95                 if (g_regex_match((GRegex *)(it->data), uri, 0, NULL))
  96                 {
  97                         webkit_network_request_set_uri(request, "about:blank");
  98                         if (show_all_requests)
  99                                 fprintf(stderr, "            BLOCKED!\n");
 100                         return;
 101                 }
 102                 it = g_slist_next(it);
 103         }
 104 }
 105
 106 void
 107 adblock_load(void)
 108 {
 109         GRegex *re = NULL;
 110         GError *err = NULL;
 111         GIOChannel *channel = NULL;
 112         gchar *path = NULL;
 113         gchar *buf = NULL;
 114
 115         path = g_build_filename(g_get_user_config_dir(), __NAME__, "adblock.black",
 116                                 NULL);
 117         channel = g_io_channel_new_file(path, "r", &err);
 118         if (channel != NULL)
 119         {
 120                 while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
 121                        == G_IO_STATUS_NORMAL)
 122                 {
 123                         g_strstrip(buf);
 124                         re = g_regex_new(buf,
 125                                          G_REGEX_CASELESS | G_REGEX_OPTIMIZE,
 126                                          G_REGEX_MATCH_PARTIAL, &err);
 127                         if (err != NULL)
 128                         {
 129                                 fprintf(stderr, __NAME__": Could not compile regex: %s\n", buf);
 130                                 g_error_free(err);
 131                                 err = NULL;
 132                         }
 133                         adblock_patterns = g_slist_append(adblock_patterns, re);
 134
 135                         g_free(buf);
 136                 }
 137         }
 138         g_free(path);
 139 }
 140
 141 void
 142 client_destroy(GtkWidget *obj, gpointer data)
 143 {
 144         struct Client *c = (struct Client *)data;
 145
 146         (void)obj;
 147         (void)data;
 148
 149         free(c);
 150         clients--;
 151
 152         if (clients == 0)
 153                 gtk_main_quit();
 154 }
 155
 156 gboolean
 157 client_destroy_request(WebKitWebView *web_view, gpointer data)
 158 {
 159         struct Client *c = (struct Client *)data;
 160
 161         (void)web_view;
 162
 163         gtk_widget_destroy(c->win);
 164
 165         return TRUE;
 166 }
 167
 168 WebKitWebView *
 169 client_new(const gchar *uri)
 170 {
 171         struct Client *c;
 172         gchar *f;
 173
 174         if (uri != NULL && cooperative_instances && !cooperative_alone)
 175         {
 176                 write(cooperative_pipe_fp, uri, strlen(uri));
 177                 write(cooperative_pipe_fp, "\n", 1);
 178                 return NULL;
 179         }
 180
 181         c = malloc(sizeof(struct Client));
 182         if (!c)
 183         {
 184                 fprintf(stderr, __NAME__": fatal: malloc failed\n");
 185                 exit(EXIT_FAILURE);
 186         }
 187
 188         c->win = NULL;
 189         if (embed != 0)
 190         {
 191                 c->win = gtk_plug_new(embed);
 192                 if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 193                 {
 194                         fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 195                         gtk_widget_destroy(c->win);
 196                         c->win = NULL;
 197                         embed = 0;
 198                 }
 199         }
 200
 201         if (c->win == NULL)
 202         {
 203                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 204                 gtk_window_set_wmclass(GTK_WINDOW(c->win), __NAME__, __NAME_CAPITALIZED__);
 205         }
 206
 207         /* When using Gtk2, it only shows a white area when run in suckless'
 208          * tabbed. It appears we need to set a default window size for this
 209          * to work. This is not needed when using Gtk3. */
 210         gtk_window_set_default_size(GTK_WINDOW(c->win), 1024, 768);
 211
 212         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 213         gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 214
 215         c->web_view = webkit_web_view_new();
 216
 217         /* XXX I really do want to enable this option. However, I get
 218          * reproducable crashes with it enabled. I've seen bug reports from
 219          * 2010 about this... WebKit crashes in libpixman, so maybe it's not
 220          * a WebKit issue.
 221          * Yeah, well. I'll turn it off for now. */
 222         /*webkit_web_view_set_full_content_zoom(WEBKIT_WEB_VIEW(c->web_view), TRUE);*/
 223
 224         webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 225         g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 226                          G_CALLBACK(changed_title), c);
 227         g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 228                          G_CALLBACK(changed_uri), c);
 229         g_signal_connect(G_OBJECT(c->web_view), "notify::progress",
 230                          G_CALLBACK(changed_load_progress), c);
 231         g_signal_connect(G_OBJECT(c->web_view), "create-web-view",
 232                          G_CALLBACK(client_new_request), NULL);
 233         g_signal_connect(G_OBJECT(c->web_view), "close-web-view",
 234                          G_CALLBACK(client_destroy_request), c);
 235         g_signal_connect(G_OBJECT(c->web_view),
 236                          "mime-type-policy-decision-requested",
 237                          G_CALLBACK(download_request), NULL);
 238         g_signal_connect(G_OBJECT(c->web_view), "download-requested",
 239                          G_CALLBACK(download_handle), c);
 240         g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 241                          G_CALLBACK(key_web_view), c);
 242         g_signal_connect(G_OBJECT(c->web_view), "button-press-event",
 243                          G_CALLBACK(key_web_view), c);
 244         g_signal_connect(G_OBJECT(c->web_view), "hovering-over-link",
 245                          G_CALLBACK(hover_web_view), c);
 246         g_signal_connect(G_OBJECT(c->web_view), "resource-request-starting",
 247                          G_CALLBACK(adblock), NULL);
 248
 249         if (!language_is_set)
 250         {
 251                 g_object_set(webkit_get_default_session(), "accept-language",
 252                              accepted_language, NULL);
 253                 language_is_set = TRUE;
 254         }
 255
 256         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 257
 258         gtk_container_add(GTK_CONTAINER(c->scroll), c->web_view);
 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
 264         c->progress = gtk_progress_bar_new();
 265         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(c->progress), 0);
 266
 267         c->status = gtk_progress_bar_new();
 268         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(c->status), 0);
 269         gtk_widget_set_size_request(c->status, 20, -1);
 270
 271         c->top_box = gtk_hbox_new(FALSE, 0);
 272         gtk_box_pack_start(GTK_BOX(c->top_box), c->status, FALSE, FALSE, 2);
 273         gtk_box_pack_start(GTK_BOX(c->top_box), c->location, TRUE, TRUE, 0);
 274         gtk_box_pack_end(GTK_BOX(c->top_box), c->progress, FALSE, TRUE, 2);
 275
 276         c->vbox = gtk_vbox_new(FALSE, 0);
 277         gtk_box_pack_start(GTK_BOX(c->vbox), c->top_box, FALSE, FALSE, 2);
 278         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 279
 280         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 281
 282         gtk_widget_grab_focus(c->web_view);
 283         gtk_widget_show_all(c->win);
 284
 285         if (uri != NULL)
 286         {
 287                 f = ensure_url_scheme(uri);
 288                 if (show_all_requests)
 289                         fprintf(stderr, "====> %s\n", uri);
 290                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 291                 g_free(f);
 292         }
 293
 294         clients++;
 295
 296         return WEBKIT_WEB_VIEW(c->web_view);
 297 }
 298
 299 WebKitWebView *
 300 client_new_request(WebKitWebView *web_view, WebKitWebFrame *frame, gpointer data)
 301 {
 302         (void)web_view;
 303         (void)frame;
 304         (void)data;
 305
 306         return client_new(NULL);
 307 }
 308
 309 void
 310 cooperation_setup(void)
 311 {
 312         GIOChannel *towatch;
 313         gchar *fifopath;
 314
 315         fifopath = g_build_filename(g_get_user_runtime_dir(), __NAME__".fifo", NULL);
 316
 317         if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 318                 mkfifo(fifopath, 0600);
 319
 320         cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 321         if (!cooperative_pipe_fp)
 322         {
 323                 fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 324         }
 325         else
 326         {
 327                 if (write(cooperative_pipe_fp, "", 0) == -1)
 328                 {
 329                         /* Could not do an empty write to the FIFO which means there's
 330                          * no one listening. */
 331                         close(cooperative_pipe_fp);
 332                         towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 333                         g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 334                 }
 335                 else
 336                         cooperative_alone = FALSE;
 337         }
 338
 339         g_free(fifopath);
 340 }
 341
 342 void
 343 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 344 {
 345         struct Client *c = (struct Client *)data;
 346         gdouble p;
 347
 348         (void)obj;
 349         (void)pspec;
 350
 351         p = webkit_web_view_get_progress(WEBKIT_WEB_VIEW(c->web_view));
 352         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(c->progress), p);
 353 }
 354
 355 void
 356 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 357 {
 358         const gchar *t;
 359         struct Client *c = (struct Client *)data;
 360
 361         (void)obj;
 362         (void)pspec;
 363
 364         t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 365         gtk_window_set_title(GTK_WINDOW(c->win), (t == NULL ? __NAME__ : t));
 366 }
 367
 368 void
 369 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 370 {
 371         const gchar *t;
 372         struct Client *c = (struct Client *)data;
 373
 374         (void)obj;
 375         (void)pspec;
 376
 377         t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 378         gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL ? __NAME__ : t));
 379 }
 380
 381 gboolean
 382 download_handle(WebKitWebView *web_view, WebKitDownload *download, gpointer data)
 383 {
 384         struct Client *c = (struct Client *)data;
 385         gchar *path, *path2 = NULL, *uri;
 386         gboolean ret;
 387         int suffix = 1;
 388
 389         (void)web_view;
 390         (void)data;
 391
 392         path = g_build_filename(download_dir,
 393                                 webkit_download_get_suggested_filename(download),
 394                                 NULL);
 395         path2 = g_strdup(path);
 396         while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 397         {
 398                 g_free(path2);
 399
 400                 path2 = g_strdup_printf("%s.%d", path, suffix);
 401                 suffix++;
 402         }
 403
 404         if (suffix == 1000)
 405         {
 406                 fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 407                 ret = FALSE;
 408         }
 409         else
 410         {
 411                 uri = g_filename_to_uri(path2, NULL, NULL);
 412                 webkit_download_set_destination_uri(download, uri);
 413                 ret = TRUE;
 414                 g_free(uri);
 415
 416                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(c->status), 1);
 417                 downloads_indicated++;
 418                 g_timeout_add(500, download_reset_indicator, c);
 419         }
 420
 421         g_free(path);
 422         g_free(path2);
 423
 424         return ret;
 425 }
 426
 427 gboolean
 428 download_reset_indicator(gpointer data)
 429 {
 430         struct Client *c = (struct Client *)data;
 431
 432         downloads_indicated--;
 433         if (downloads_indicated == 0)
 434                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(c->status), 0);
 435
 436         return FALSE;
 437 }
 438
 439 gboolean
 440 download_request(WebKitWebView *web_view, WebKitWebFrame *frame,
 441                  WebKitNetworkRequest *request, gchar *mime_type,
 442                  WebKitWebPolicyDecision *policy_decision, gpointer data)
 443 {
 444         (void)frame;
 445         (void)request;
 446         (void)data;
 447
 448         if (!webkit_web_view_can_show_mime_type(web_view, mime_type))
 449         {
 450                 webkit_web_policy_decision_download(policy_decision);
 451                 return TRUE;
 452         }
 453         return FALSE;
 454 }
 455
 456 gchar *
 457 ensure_url_scheme(const gchar *t)
 458 {
 459         gchar *f;
 460
 461         f = g_ascii_strdown(t, -1);
 462         if (!g_str_has_prefix(f, "http:") &&
 463             !g_str_has_prefix(f, "https:") &&
 464             !g_str_has_prefix(f, "file:") &&
 465             !g_str_has_prefix(f, "about:"))
 466         {
 467                 g_free(f);
 468                 f = g_strdup_printf("http://%s", t);
 469                 return f;
 470         }
 471         else
 472                 return g_strdup(t);
 473 }
 474
 475 void
 476 grab_environment_configuration(void)
 477 {
 478         const gchar *e;
 479
 480         e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 481         if (e != NULL)
 482                 accepted_language = g_strdup(e);
 483
 484         e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 485         if (e != NULL)
 486                 download_dir = g_strdup(e);
 487
 488         e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 489         if (e != NULL)
 490                 global_zoom = atof(e);
 491 }
 492
 493 void
 494 hover_web_view(WebKitWebView *web_view, gchar *title, gchar *uri, gpointer data)
 495 {
 496         struct Client *c = (struct Client *)data;
 497
 498         (void)web_view;
 499         (void)title;
 500
 501         if (!gtk_widget_is_focus(c->location))
 502         {
 503                 if (uri == NULL)
 504                         gtk_entry_set_text(GTK_ENTRY(c->location),
 505                                            webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 506                 else
 507                         gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 508         }
 509 }
 510
 511 gboolean
 512 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 513 {
 514         struct Client *c = (struct Client *)data;
 515         const gchar *t;
 516         gchar *f;
 517
 518         (void)widget;
 519
 520         if (event->type == GDK_KEY_PRESS)
 521         {
 522                 switch (((GdkEventKey *)event)->keyval)
 523                 {
 524                         case GDK_KEY_Return:
 525                                 gtk_widget_grab_focus(c->web_view);
 526                                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 527                                 if (t != NULL && t[0] == '/')
 528                                 {
 529                                         if (search_text != NULL)
 530                                                 g_free(search_text);
 531                                         search_text = g_strdup(t + 1);  /* XXX whacky */
 532                                         search(c, 1);
 533                                 }
 534                                 else
 535                                 {
 536                                         f = ensure_url_scheme(t);
 537                                         if (show_all_requests)
 538                                                 fprintf(stderr, "====> %s\n", f);
 539                                         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 540                                         g_free(f);
 541                                 }
 542                                 return TRUE;
 543                         case GDK_KEY_Escape:
 544                                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 545                                 gtk_entry_set_text(GTK_ENTRY(c->location),
 546                                                    (t == NULL ? __NAME__ : t));
 547                                 return TRUE;
 548                 }
 549         }
 550
 551         return FALSE;
 552 }
 553
 554 gboolean
 555 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 556 {
 557         struct Client *c = (struct Client *)data;
 558         WebKitHitTestResultContext ht_context;
 559         WebKitHitTestResult *ht_result = NULL;
 560         gchar *ht_uri = NULL, *f;
 561
 562         (void)widget;
 563
 564         if (event->type == GDK_KEY_PRESS)
 565         {
 566                 if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK)
 567                 {
 568                         switch (((GdkEventKey *)event)->keyval)
 569                         {
 570                                 case GDK_KEY_o:
 571                                         gtk_widget_grab_focus(c->location);
 572                                         return TRUE;
 573                                 case GDK_KEY_h:
 574                                         scroll(gtk_scrolled_window_get_hadjustment(
 575                                                GTK_SCROLLED_WINDOW(c->scroll)), 0, -1);
 576                                         return TRUE;
 577                                 case GDK_KEY_j:
 578                                         scroll(gtk_scrolled_window_get_vadjustment(
 579                                                GTK_SCROLLED_WINDOW(c->scroll)), 0, 1);
 580                                         return TRUE;
 581                                 case GDK_KEY_k:
 582                                         scroll(gtk_scrolled_window_get_vadjustment(
 583                                                GTK_SCROLLED_WINDOW(c->scroll)), 0, -1);
 584                                         return TRUE;
 585                                 case GDK_KEY_l:
 586                                         scroll(gtk_scrolled_window_get_hadjustment(
 587                                                GTK_SCROLLED_WINDOW(c->scroll)), 0, 1);
 588                                         return TRUE;
 589                                 case GDK_KEY_f:
 590                                         scroll(gtk_scrolled_window_get_vadjustment(
 591                                                GTK_SCROLLED_WINDOW(c->scroll)), 1, 0.5);
 592                                         return TRUE;
 593                                 case GDK_KEY_b:
 594                                         scroll(gtk_scrolled_window_get_vadjustment(
 595                                                GTK_SCROLLED_WINDOW(c->scroll)), 1, -0.5);
 596                                         return TRUE;
 597                                 case GDK_KEY_n:
 598                                         search(c, 1);
 599                                         return TRUE;
 600                                 case GDK_KEY_p:
 601                                         search(c, -1);
 602                                         return TRUE;
 603                                 case GDK_KEY_g:
 604                                         f = ensure_url_scheme(first_uri);
 605                                         if (show_all_requests)
 606                                                 fprintf(stderr, "====> %s\n", f);
 607                                         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 608                                         g_free(f);
 609                                         return TRUE;
 610                         }
 611                 }
 612                 else if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 613                 {
 614                         webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 615                         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(c->progress), 0);
 616                 }
 617         }
 618         else if (event->type == GDK_BUTTON_PRESS)
 619         {
 620                 switch (((GdkEventButton *)event)->button)
 621                 {
 622                         case 2:
 623                                 ht_result = webkit_web_view_get_hit_test_result(
 624                                                                    WEBKIT_WEB_VIEW(c->web_view),
 625                                                                        (GdkEventButton *)event);
 626                                 g_object_get(ht_result, "context", &ht_context, NULL);
 627                                 if (ht_context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK)
 628                                 {
 629                                         g_object_get(ht_result, "link-uri", &ht_uri, NULL);
 630                                         client_new(ht_uri);
 631                                         g_object_unref(ht_result);
 632                                         return TRUE;
 633                                 }
 634                                 g_object_unref(ht_result);
 635                                 return FALSE;
 636                         case 8:
 637                                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 638                                 return TRUE;
 639                         case 9:
 640                                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 641                                 return TRUE;
 642                 }
 643         }
 644
 645         return FALSE;
 646 }
 647
 648 gboolean
 649 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
 650 {
 651         gchar *uri = NULL;
 652
 653         (void)condition;
 654         (void)data;
 655
 656         g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
 657         if (uri)
 658         {
 659                 g_strstrip(uri);
 660                 client_new(uri);
 661                 g_free(uri);
 662         }
 663         return TRUE;
 664 }
 665
 666 void
 667 search(gpointer data, gint direction)
 668 {
 669         struct Client *c = (struct Client *)data;
 670
 671         if (search_text == NULL)
 672                 return;
 673
 674         webkit_web_view_search_text(WEBKIT_WEB_VIEW(c->web_view), search_text,
 675                                     FALSE, direction == 1, TRUE);
 676 }
 677
 678 void
 679 scroll(GtkAdjustment *a, gint step_type, gdouble factor)
 680 {
 681         gdouble new, lower, upper, step;
 682         lower = gtk_adjustment_get_lower(a);
 683         upper = gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a) + lower;
 684         if (step_type == 0)
 685                 step = gtk_adjustment_get_step_increment(a);
 686         else
 687                 step = gtk_adjustment_get_page_increment(a);
 688         new = gtk_adjustment_get_value(a) + factor * step;
 689         new = new < lower ? lower : new;
 690         new = new > upper ? upper : new;
 691         gtk_adjustment_set_value(a, new);
 692 }
 693
 694 Window
 695 tabbed_launch(void)
 696 {
 697         gint tabbed_stdout;
 698         GIOChannel *tabbed_stdout_channel;
 699         GError *err = NULL;
 700         gchar *output = NULL;
 701         char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
 702         Window plug_into;
 703
 704         if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
 705                                       NULL, NULL, NULL, &tabbed_stdout, NULL,
 706                                       &err))
 707         {
 708                 fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
 709                 g_error_free(err);
 710                 return 0;
 711         }
 712
 713         tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
 714         g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
 715         if (output == NULL)
 716         {
 717                 fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
 718                 return 0;
 719         }
 720
 721         g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
 722
 723         g_strstrip(output);
 724         plug_into = strtol(output, NULL, 16);
 725         g_free(output);
 726         return plug_into;
 727 }
 728
 729 void
 730 usage(void)
 731 {
 732         fprintf(stderr, "Usage: "__NAME__" [OPTION]... <URI>...\n");
 733         exit(EXIT_FAILURE);
 734 }
 735
 736
 737 int
 738 main(int argc, char **argv)
 739 {
 740         int opt, i;
 741
 742         gtk_init(&argc, &argv);
 743
 744         grab_environment_configuration();
 745
 746         while ((opt = getopt(argc, argv, "e:rCT")) != -1)
 747         {
 748                 switch (opt)
 749                 {
 750                         case 'e':
 751                                 embed = atol(optarg);
 752                                 tabbed_automagic = FALSE;
 753                                 break;
 754                         case 'r':
 755                                 show_all_requests = TRUE;
 756                                 break;
 757                         case 'C':
 758                                 cooperative_instances = FALSE;
 759                                 break;
 760                         case 'T':
 761                                 tabbed_automagic = FALSE;
 762                                 break;
 763                         default:
 764                                 usage();
 765                 }
 766         }
 767
 768         if (optind >= argc)
 769                 usage();
 770
 771         adblock_load();
 772         cooperation_setup();
 773
 774         if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
 775                 embed = tabbed_launch();
 776
 777         first_uri = g_strdup(argv[optind]);
 778         for (i = optind; i < argc; i++)
 779                 client_new(argv[i]);
 780         if (!cooperative_instances || cooperative_alone)
 781                 gtk_main();
 782         exit(EXIT_SUCCESS);
 783 }