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 void client_destroy(GtkWidget *, gpointer);
  18 WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean,
  19                           gboolean);
  20 WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  21                                   gpointer);
  22 void cooperation_setup(void);
  23 void changed_download_progress(GObject *, GParamSpec *, gpointer);
  24 void changed_load_progress(GObject *, GParamSpec *, gpointer);
  25 void changed_favicon(GObject *, GParamSpec *, gpointer);
  26 void changed_title(GObject *, GParamSpec *, gpointer);
  27 void changed_uri(GObject *, GParamSpec *, gpointer);
  28 gboolean crashed_web_view(WebKitWebView *, gpointer);
  29 gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  30                        WebKitPolicyDecisionType, gpointer);
  31 gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  32 void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  33 void downloadmanager_cancel(GtkToolButton *, gpointer);
  34 gboolean downloadmanager_delete(GtkWidget *, gpointer);
  35 void downloadmanager_setup(void);
  36 gchar *ensure_uri_scheme(const gchar *);
  37 void grab_environment_configuration(void);
  38 void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  39 void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  40 void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  41 void init_default_web_context(void);
  42 gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  43 gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  44 gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  45 gboolean key_tablabel(GtkWidget *, GdkEvent *, gpointer);
  46 gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  47 void mainwindow_setup(void);
  48 void mainwindow_title(gint);
  49 void notebook_switch_page(GtkNotebook *, GtkWidget *, guint, gpointer);
  50 gboolean quit_if_nothing_active(void);
  51 gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  52 void run_user_scripts(WebKitWebView *);
  53 void search(gpointer, gint);
  54 void show_web_view(WebKitWebView *, gpointer);
  55 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 *tabicon;
  65     GtkWidget *tablabel;
  66     GtkWidget *vbox;
  67     GtkWidget *web_view;
  68     gboolean focus_new_tab;
  69 };
  70
  71 struct MainWindow
  72 {
  73     GtkWidget *win;
  74     GtkWidget *notebook;
  75 } mw;
  76
  77 struct DownloadManager
  78 {
  79     GtkWidget *scroll;
  80     GtkWidget *toolbar;
  81     GtkWidget *win;
  82 } dm;
  83
  84
  85 const gchar *accepted_language[2] = { NULL, NULL };
  86 gint clients = 0, downloads = 0;
  87 gboolean cooperative_alone = TRUE;
  88 gboolean cooperative_instances = TRUE;
  89 int cooperative_pipe_fp = 0;
  90 gchar *download_dir = "/var/tmp";
  91 gboolean enable_console_to_stdout = FALSE;
  92 gchar *fifo_suffix = "main";
  93 gdouble global_zoom = 1.0;
  94 gchar *history_file = NULL;
  95 gchar *home_uri = "about:blank";
  96 gchar *search_text = NULL;
  97 GtkPositionType tab_pos = GTK_POS_TOP;
  98 gint tab_width_chars = 20;
  99 gchar *user_agent = NULL;
 100
 101
 102 void
 103 client_destroy(GtkWidget *widget, gpointer data)
 104 {
 105     struct Client *c = (struct Client *)data;
 106     gint idx;
 107
 108     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 109                                          changed_load_progress, c);
 110
 111     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
 112     if (idx == -1)
 113         fprintf(stderr, __NAME__": Tab index was -1, bamboozled\n");
 114     else
 115         gtk_notebook_remove_page(GTK_NOTEBOOK(mw.notebook), idx);
 116
 117     free(c);
 118     clients--;
 119
 120     quit_if_nothing_active();
 121 }
 122
 123 WebKitWebView *
 124 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show,
 125            gboolean focus_tab)
 126 {
 127     struct Client *c;
 128     gchar *f;
 129     GtkWidget *evbox, *tabbox;
 130
 131     if (uri != NULL && cooperative_instances && !cooperative_alone)
 132     {
 133         f = ensure_uri_scheme(uri);
 134         write(cooperative_pipe_fp, f, strlen(f));
 135         write(cooperative_pipe_fp, "\n", 1);
 136         g_free(f);
 137         return NULL;
 138     }
 139
 140     c = calloc(1, sizeof(struct Client));
 141     if (!c)
 142     {
 143         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 144         exit(EXIT_FAILURE);
 145     }
 146
 147     c->focus_new_tab = focus_tab;
 148
 149     if (related_wv == NULL)
 150         c->web_view = webkit_web_view_new();
 151     else
 152         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 153
 154     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 155     g_signal_connect(G_OBJECT(c->web_view), "notify::favicon",
 156                      G_CALLBACK(changed_favicon), c);
 157     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 158                      G_CALLBACK(changed_title), c);
 159     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 160                      G_CALLBACK(changed_uri), c);
 161     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 162                      G_CALLBACK(changed_load_progress), c);
 163     g_signal_connect(G_OBJECT(c->web_view), "create",
 164                      G_CALLBACK(client_new_request), NULL);
 165     g_signal_connect(G_OBJECT(c->web_view), "close",
 166                      G_CALLBACK(client_destroy), c);
 167     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 168                      G_CALLBACK(decide_policy), NULL);
 169     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 170                      G_CALLBACK(key_web_view), c);
 171     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 172                      G_CALLBACK(key_web_view), c);
 173     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 174                      G_CALLBACK(key_web_view), c);
 175     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 176                      G_CALLBACK(hover_web_view), c);
 177     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 178                      G_CALLBACK(crashed_web_view), c);
 179
 180     if (user_agent != NULL)
 181         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 182                      "user-agent", user_agent, NULL);
 183
 184     if (enable_console_to_stdout)
 185         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 186
 187     webkit_settings_set_enable_developer_extras(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 188
 189     c->location = gtk_entry_new();
 190     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 191                      G_CALLBACK(key_location), c);
 192     g_signal_connect(G_OBJECT(c->location), "icon-release",
 193                      G_CALLBACK(icon_location), c);
 194     /* XXX This is a workaround. Setting this to NULL (which is done in
 195      * grab_feeds_finished() if no feed has been detected) adds a little
 196      * padding left of the text. Not sure why. The point of this call
 197      * right here is to have that padding right from the start. This
 198      * avoids a graphical artifact. */
 199     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 200                                       GTK_ENTRY_ICON_PRIMARY,
 201                                       NULL);
 202
 203     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 204     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 205     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 206
 207     c->tabicon = gtk_image_new_from_icon_name("text-html", GTK_ICON_SIZE_SMALL_TOOLBAR);
 208
 209     c->tablabel = gtk_label_new(__NAME__);
 210     gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 211     gtk_label_set_width_chars(GTK_LABEL(c->tablabel), tab_width_chars);
 212     gtk_widget_set_has_tooltip(c->tablabel, TRUE);
 213
 214     /* XXX I don't own a HiDPI screen, so I don't know if scale_factor
 215      * does the right thing. */
 216     tabbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,
 217                          5 * gtk_widget_get_scale_factor(mw.win));
 218     gtk_box_pack_start(GTK_BOX(tabbox), c->tabicon, FALSE, FALSE, 0);
 219     gtk_box_pack_start(GTK_BOX(tabbox), c->tablabel, TRUE, TRUE, 0);
 220
 221     evbox = gtk_event_box_new();
 222     gtk_container_add(GTK_CONTAINER(evbox), tabbox);
 223     g_signal_connect(G_OBJECT(evbox), "button-release-event",
 224                      G_CALLBACK(key_tablabel), c);
 225
 226     gtk_widget_add_events(evbox, GDK_SCROLL_MASK);
 227     g_signal_connect(G_OBJECT(evbox), "scroll-event",
 228                      G_CALLBACK(key_tablabel), c);
 229
 230     /* For easy access, store a reference to our label. */
 231     g_object_set_data(G_OBJECT(evbox), "lariza-tab-label", c->tablabel);
 232
 233     /* This only shows the event box and the label inside, nothing else.
 234      * Needed because the evbox/label is "internal" to the notebook and
 235      * not part of the normal "widget tree" (IIUC). */
 236     gtk_widget_show_all(evbox);
 237
 238     gtk_notebook_insert_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox,
 239                              gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)) + 1);
 240     gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 241
 242     if (show)
 243         show_web_view(NULL, c);
 244     else
 245         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 246                          G_CALLBACK(show_web_view), c);
 247
 248     if (uri != NULL)
 249     {
 250         f = ensure_uri_scheme(uri);
 251         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 252         g_free(f);
 253     }
 254
 255     clients++;
 256
 257     return WEBKIT_WEB_VIEW(c->web_view);
 258 }
 259
 260 WebKitWebView *
 261 client_new_request(WebKitWebView *web_view,
 262                    WebKitNavigationAction *navigation_action, gpointer data)
 263 {
 264     return client_new(NULL, web_view, FALSE, FALSE);
 265 }
 266
 267 void
 268 cooperation_setup(void)
 269 {
 270     GIOChannel *towatch;
 271     gchar *fifofilename, *fifopath;
 272
 273     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 274     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 275     g_free(fifofilename);
 276
 277     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 278         mkfifo(fifopath, 0600);
 279
 280     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 281     if (!cooperative_pipe_fp)
 282     {
 283         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 284     }
 285     else
 286     {
 287         if (write(cooperative_pipe_fp, "", 0) == -1)
 288         {
 289             /* Could not do an empty write to the FIFO which means there's
 290              * no one listening. */
 291             close(cooperative_pipe_fp);
 292             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 293             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 294         }
 295         else
 296             cooperative_alone = FALSE;
 297     }
 298
 299     g_free(fifopath);
 300 }
 301
 302 void
 303 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 304 {
 305     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 306     WebKitURIResponse *resp;
 307     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 308     gdouble p, size_mb;
 309     const gchar *uri;
 310     gchar *t, *filename, *base;
 311
 312     p = webkit_download_get_estimated_progress(download);
 313     p = p > 1 ? 1 : p;
 314     p = p < 0 ? 0 : p;
 315     p *= 100;
 316     resp = webkit_download_get_response(download);
 317     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 318
 319     uri = webkit_download_get_destination(download);
 320     filename = g_filename_from_uri(uri, NULL, NULL);
 321     if (filename == NULL)
 322     {
 323         /* This really should not happen because WebKit uses that URI to
 324          * write to a file... */
 325         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 326         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 327                             webkit_uri_response_get_uri(resp), p, size_mb);
 328     }
 329     else
 330     {
 331         base = g_path_get_basename(filename);
 332         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 333         g_free(filename);
 334         g_free(base);
 335     }
 336     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 337     g_free(t);
 338 }
 339
 340 void
 341 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 342 {
 343     struct Client *c = (struct Client *)data;
 344     gdouble p;
 345     gchar *grab_feeds =
 346         "a = document.querySelectorAll('"
 347         "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 348         "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 349         "');"
 350         "if (a.length == 0)"
 351         "    null;"
 352         "else"
 353         "{"
 354         "    out = '';"
 355         "    for (i = 0; i < a.length; i++)"
 356         "    {"
 357         "        url = encodeURIComponent(a[i].href);"
 358         "        if ('title' in a[i] && a[i].title != '')"
 359         "            title = encodeURIComponent(a[i].title);"
 360         "        else"
 361         "            title = url;"
 362         "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 363         "    }"
 364         "    out;"
 365         "}";
 366
 367     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 368     if (p == 1)
 369     {
 370         p = 0;
 371
 372         /* The page has loaded fully. We now run the short JavaScript
 373          * snippet above that operates on the DOM. It tries to grab all
 374          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 375          * references. */
 376         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 377                                        grab_feeds, NULL,
 378                                        grab_feeds_finished, c);
 379
 380         run_user_scripts(WEBKIT_WEB_VIEW(c->web_view));
 381     }
 382     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 383 }
 384
 385 void
 386 changed_favicon(GObject *obj, GParamSpec *pspec, gpointer data)
 387 {
 388     struct Client *c = (struct Client *)data;
 389     cairo_surface_t *f;
 390     int w, h, w_should, h_should;
 391     GdkPixbuf *pb, *pb_scaled;
 392
 393     f = webkit_web_view_get_favicon(WEBKIT_WEB_VIEW(c->web_view));
 394     if (f == NULL)
 395     {
 396         gtk_image_set_from_icon_name(GTK_IMAGE(c->tabicon), "text-html",
 397                                      GTK_ICON_SIZE_SMALL_TOOLBAR);
 398     }
 399     else
 400     {
 401         w = cairo_image_surface_get_width(f);
 402         h = cairo_image_surface_get_height(f);
 403         pb = gdk_pixbuf_get_from_surface(f, 0, 0, w, h);
 404         if (pb != NULL)
 405         {
 406             w_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 407             h_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 408             pb_scaled = gdk_pixbuf_scale_simple(pb, w_should, h_should,
 409                                                 GDK_INTERP_BILINEAR);
 410             gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb_scaled);
 411
 412             g_object_unref(pb_scaled);
 413             g_object_unref(pb);
 414         }
 415     }
 416 }
 417
 418 void
 419 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 420 {
 421     const gchar *t, *u;
 422     struct Client *c = (struct Client *)data;
 423
 424     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 425     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 426
 427     u = u == NULL ? __NAME__ : u;
 428     u = u[0] == 0 ? __NAME__ : u;
 429
 430     t = t == NULL ? u : t;
 431     t = t[0] == 0 ? u : t;
 432
 433     gtk_label_set_text(GTK_LABEL(c->tablabel), t);
 434     gtk_widget_set_tooltip_text(c->tablabel, t);
 435     mainwindow_title(gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)));
 436 }
 437
 438 void
 439 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 440 {
 441     const gchar *t;
 442     struct Client *c = (struct Client *)data;
 443     FILE *fp;
 444
 445     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 446
 447     /* When a web process crashes, we get a "notify::uri" signal, but we
 448      * can no longer read a meaningful URI. It's just an empty string
 449      * now. Not updating the location bar in this scenario is important,
 450      * because we would override the "WEB PROCESS CRASHED" message. */
 451     if (t != NULL && strlen(t) > 0)
 452     {
 453         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 454
 455         if (history_file != NULL)
 456         {
 457             fp = fopen(history_file, "a");
 458             if (fp != NULL)
 459             {
 460                 fprintf(fp, "%s\n", t);
 461                 fclose(fp);
 462             }
 463             else
 464                 perror(__NAME__": Error opening history file");
 465         }
 466     }
 467 }
 468
 469 gboolean
 470 crashed_web_view(WebKitWebView *web_view, gpointer data)
 471 {
 472     gchar *t;
 473     struct Client *c = (struct Client *)data;
 474
 475     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 476                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 477     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 478     g_free(t);
 479
 480     return TRUE;
 481 }
 482
 483 gboolean
 484 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 485               WebKitPolicyDecisionType type, gpointer data)
 486 {
 487     WebKitResponsePolicyDecision *r;
 488
 489     switch (type)
 490     {
 491         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 492             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 493             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 494                 webkit_policy_decision_download(decision);
 495             else
 496                 webkit_policy_decision_use(decision);
 497             break;
 498         default:
 499             /* Use whatever default there is. */
 500             return FALSE;
 501     }
 502     return TRUE;
 503 }
 504
 505 void
 506 download_handle_finished(WebKitDownload *download, gpointer data)
 507 {
 508     downloads--;
 509 }
 510
 511 void
 512 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 513                       gpointer data)
 514 {
 515     g_signal_connect(G_OBJECT(download), "decide-destination",
 516                      G_CALLBACK(download_handle), data);
 517 }
 518
 519 gboolean
 520 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 521 {
 522     gchar *sug_clean, *path, *path2 = NULL, *uri;
 523     GtkToolItem *tb;
 524     int suffix = 1;
 525     size_t i;
 526
 527     sug_clean = g_strdup(suggested_filename);
 528     for (i = 0; i < strlen(sug_clean); i++)
 529         if (sug_clean[i] == G_DIR_SEPARATOR)
 530             sug_clean[i] = '_';
 531
 532     path = g_build_filename(download_dir, sug_clean, NULL);
 533     path2 = g_strdup(path);
 534     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 535     {
 536         g_free(path2);
 537
 538         path2 = g_strdup_printf("%s.%d", path, suffix);
 539         suffix++;
 540     }
 541
 542     if (suffix == 1000)
 543     {
 544         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 545         webkit_download_cancel(download);
 546     }
 547     else
 548     {
 549         uri = g_filename_to_uri(path2, NULL, NULL);
 550         webkit_download_set_destination(download, uri);
 551         g_free(uri);
 552
 553         tb = gtk_tool_button_new(NULL, NULL);
 554         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 555         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 556         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 557         gtk_widget_show_all(dm.win);
 558
 559         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 560                          G_CALLBACK(changed_download_progress), tb);
 561
 562         downloads++;
 563         g_signal_connect(G_OBJECT(download), "finished",
 564                          G_CALLBACK(download_handle_finished), NULL);
 565
 566         g_object_ref(download);
 567         g_signal_connect(G_OBJECT(tb), "clicked",
 568                          G_CALLBACK(downloadmanager_cancel), download);
 569     }
 570
 571     g_free(sug_clean);
 572     g_free(path);
 573     g_free(path2);
 574
 575     /* Propagate -- to whom it may concern. */
 576     return FALSE;
 577 }
 578
 579 void
 580 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 581 {
 582     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 583
 584     webkit_download_cancel(download);
 585     g_object_unref(download);
 586
 587     gtk_widget_destroy(GTK_WIDGET(tb));
 588 }
 589
 590 gboolean
 591 downloadmanager_delete(GtkWidget *obj, gpointer data)
 592 {
 593     if (!quit_if_nothing_active())
 594         gtk_widget_hide(dm.win);
 595
 596     return TRUE;
 597 }
 598
 599 void
 600 downloadmanager_setup(void)
 601 {
 602     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 603     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 604     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 605     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 606     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 607                      G_CALLBACK(downloadmanager_delete), NULL);
 608     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 609                      G_CALLBACK(key_downloadmanager), NULL);
 610
 611     dm.toolbar = gtk_toolbar_new();
 612     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 613                                    GTK_ORIENTATION_VERTICAL);
 614     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 615     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 616
 617     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 618     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 619                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 620     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 621
 622     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 623 }
 624
 625 gchar *
 626 ensure_uri_scheme(const gchar *t)
 627 {
 628     gchar *f, *fabs;
 629
 630     f = g_ascii_strdown(t, -1);
 631     if (!g_str_has_prefix(f, "http:") &&
 632         !g_str_has_prefix(f, "https:") &&
 633         !g_str_has_prefix(f, "file:") &&
 634         !g_str_has_prefix(f, "about:") &&
 635         !g_str_has_prefix(f, "data:") &&
 636         !g_str_has_prefix(f, "webkit:"))
 637     {
 638         g_free(f);
 639         fabs = realpath(t, NULL);
 640         if (fabs != NULL)
 641         {
 642             f = g_strdup_printf("file://%s", fabs);
 643             free(fabs);
 644         }
 645         else
 646             f = g_strdup_printf("http://%s", t);
 647         return f;
 648     }
 649     else
 650         return g_strdup(t);
 651 }
 652
 653 void
 654 grab_environment_configuration(void)
 655 {
 656     const gchar *e;
 657
 658     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 659     if (e != NULL)
 660         accepted_language[0] = g_strdup(e);
 661
 662     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 663     if (e != NULL)
 664         download_dir = g_strdup(e);
 665
 666     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 667     if (e != NULL)
 668         enable_console_to_stdout = TRUE;
 669
 670     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 671     if (e != NULL)
 672         fifo_suffix = g_strdup(e);
 673
 674     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 675     if (e != NULL)
 676         history_file = g_strdup(e);
 677
 678     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 679     if (e != NULL)
 680         home_uri = g_strdup(e);
 681
 682     e = g_getenv(__NAME_UPPERCASE__"_TAB_POS");
 683     if (e != NULL)
 684     {
 685         if (strcmp(e, "top") == 0)
 686             tab_pos = GTK_POS_TOP;
 687         if (strcmp(e, "right") == 0)
 688             tab_pos = GTK_POS_RIGHT;
 689         if (strcmp(e, "bottom") == 0)
 690             tab_pos = GTK_POS_BOTTOM;
 691         if (strcmp(e, "left") == 0)
 692             tab_pos = GTK_POS_LEFT;
 693     }
 694
 695     e = g_getenv(__NAME_UPPERCASE__"_TAB_WIDTH_CHARS");
 696     if (e != NULL)
 697         tab_width_chars = atoi(e);
 698
 699     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 700     if (e != NULL)
 701         user_agent = g_strdup(e);
 702
 703     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 704     if (e != NULL)
 705         global_zoom = atof(e);
 706 }
 707
 708 void
 709 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 710 {
 711     struct Client *c = (struct Client *)data;
 712     WebKitJavascriptResult *js_result;
 713     JSCValue *value;
 714     JSCException *exception;
 715     GError *err = NULL;
 716     gchar *str_value;
 717
 718     g_free(c->feed_html);
 719     c->feed_html = NULL;
 720
 721     /* This was taken almost verbatim from the example in WebKit's
 722      * documentation:
 723      *
 724      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html#webkit-web-view-run-javascript-finish */
 725
 726     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 727                                                       result, &err);
 728     if (!js_result)
 729     {
 730         fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 731         g_error_free(err);
 732         return;
 733     }
 734
 735     value = webkit_javascript_result_get_js_value(js_result);
 736     if (jsc_value_is_string(value))
 737     {
 738         str_value = jsc_value_to_string(value);
 739         exception = jsc_context_get_exception(jsc_value_get_context(value));
 740         if (exception != NULL)
 741         {
 742             fprintf(stderr, __NAME__": Error running javascript: %s\n",
 743                     jsc_exception_get_message(exception));
 744         }
 745         else
 746             c->feed_html = str_value;
 747
 748         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 749                                           GTK_ENTRY_ICON_PRIMARY,
 750                                           "application-rss+xml-symbolic");
 751         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 752                                        GTK_ENTRY_ICON_PRIMARY,
 753                                        TRUE);
 754     }
 755     else
 756     {
 757         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 758                                           GTK_ENTRY_ICON_PRIMARY,
 759                                           NULL);
 760     }
 761
 762     webkit_javascript_result_unref(js_result);
 763 }
 764
 765 void
 766 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 767                gpointer data)
 768 {
 769     struct Client *c = (struct Client *)data;
 770
 771     if (!gtk_widget_is_focus(c->location))
 772     {
 773         if (webkit_hit_test_result_context_is_link(ht))
 774         {
 775             gtk_entry_set_text(GTK_ENTRY(c->location),
 776                                webkit_hit_test_result_get_link_uri(ht));
 777
 778             if (c->hover_uri != NULL)
 779                 g_free(c->hover_uri);
 780             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 781         }
 782         else
 783         {
 784             gtk_entry_set_text(GTK_ENTRY(c->location),
 785                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 786
 787             if (c->hover_uri != NULL)
 788                 g_free(c->hover_uri);
 789             c->hover_uri = NULL;
 790         }
 791     }
 792 }
 793
 794 void
 795 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 796               gpointer data)
 797 {
 798     struct Client *c = (struct Client *)data;
 799     gchar *d;
 800     gchar *data_template =
 801         "data:text/html,"
 802         "<!DOCTYPE html>"
 803         "<html>"
 804         "    <head>"
 805         "        <meta charset=\"UTF-8\">"
 806         "        <title>Feeds</title>"
 807         "    </head>"
 808         "    <body>"
 809         "        <p>Feeds found on this page:</p>"
 810         "        <ul>"
 811         "        %s"
 812         "        </ul>"
 813         "    </body>"
 814         "</html>";
 815
 816     if (c->feed_html != NULL)
 817     {
 818         /* What we're actually trying to do is show a simple HTML page
 819          * that lists all the feeds on the current page. The function
 820          * webkit_web_view_load_html() looks like the proper way to do
 821          * that. Sad thing is, it doesn't create a history entry, but
 822          * instead simply replaces the content of the current page. This
 823          * is not what we want.
 824          *
 825          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 826          * mechanism to show my custom HTML snippet *and* create a
 827          * history entry.
 828          *
 829          * [0]: https://tools.ietf.org/html/rfc2397
 830          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 831         d = g_strdup_printf(data_template, c->feed_html);
 832         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 833         g_free(d);
 834     }
 835 }
 836
 837 void
 838 init_default_web_context(void)
 839 {
 840     gchar *p;
 841     WebKitWebContext *wc;
 842
 843     wc = webkit_web_context_get_default();
 844
 845     p = g_build_filename(g_get_user_config_dir(), __NAME__, "adblock.black", NULL);
 846     webkit_web_context_set_sandbox_enabled(wc, TRUE);
 847     webkit_web_context_add_path_to_sandbox(wc, p, TRUE);
 848     g_free(p);
 849
 850     webkit_web_context_set_process_model(wc,
 851         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
 852
 853     p = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
 854                          NULL);
 855     webkit_web_context_set_web_extensions_directory(wc, p);
 856     g_free(p);
 857
 858     if (accepted_language[0] != NULL)
 859         webkit_web_context_set_preferred_languages(wc, accepted_language);
 860
 861     g_signal_connect(G_OBJECT(wc), "download-started",
 862                      G_CALLBACK(download_handle_start), NULL);
 863
 864     trust_user_certs(wc);
 865
 866     webkit_web_context_set_favicon_database_directory(wc, NULL);
 867 }
 868
 869 gboolean
 870 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 871 {
 872     struct Client *c = (struct Client *)data;
 873     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 874     gchar *f;
 875
 876     if (event->type == GDK_KEY_PRESS)
 877     {
 878         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 879         {
 880             switch (((GdkEventKey *)event)->keyval)
 881             {
 882                 case GDK_KEY_q:  /* close window (left hand) */
 883                     client_destroy(NULL, c);
 884                     return TRUE;
 885                 case GDK_KEY_w:  /* home (left hand) */
 886                     f = ensure_uri_scheme(home_uri);
 887                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 888                     g_free(f);
 889                     return TRUE;
 890                 case GDK_KEY_e:  /* new tab (left hand) */
 891                     f = ensure_uri_scheme(home_uri);
 892                     client_new(f, NULL, TRUE, TRUE);
 893                     g_free(f);
 894                     return TRUE;
 895                 case GDK_KEY_r:  /* reload (left hand) */
 896                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 897                                                         c->web_view));
 898                     return TRUE;
 899                 case GDK_KEY_d:  /* download manager (left hand) */
 900                     gtk_widget_show_all(dm.win);
 901                     return TRUE;
 902                 case GDK_KEY_2:  /* search forward (left hand) */
 903                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 904                     search(c, 1);
 905                     return TRUE;
 906                 case GDK_KEY_3:  /* search backward (left hand) */
 907                     search(c, -1);
 908                     return TRUE;
 909                 case GDK_KEY_l:  /* location (BOTH hands) */
 910                     gtk_widget_grab_focus(c->location);
 911                     return TRUE;
 912                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 913                     gtk_widget_grab_focus(c->location);
 914                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 915                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 916                     return TRUE;
 917                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 918                     trust_user_certs(wc);
 919                     return TRUE;
 920                 case GDK_KEY_a:  /* go one tab to the left (left hand) */
 921                     gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 922                     return TRUE;
 923                 case GDK_KEY_s:  /* go one tab to the right (left hand) */
 924                     gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 925                     return TRUE;
 926             }
 927         }
 928         /* navigate backward (left hand) */
 929         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 930         {
 931             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 932             return TRUE;
 933         }
 934         /* navigate forward (left hand) */
 935         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 936         {
 937             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 938             return TRUE;
 939         }
 940     }
 941
 942     return FALSE;
 943 }
 944
 945 gboolean
 946 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 947 {
 948     if (event->type == GDK_KEY_PRESS)
 949     {
 950         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 951         {
 952             switch (((GdkEventKey *)event)->keyval)
 953             {
 954                 case GDK_KEY_d:  /* close window (left hand) */
 955                 case GDK_KEY_q:
 956                     downloadmanager_delete(dm.win, NULL);
 957                     return TRUE;
 958             }
 959         }
 960     }
 961
 962     return FALSE;
 963 }
 964
 965 gboolean
 966 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 967 {
 968     struct Client *c = (struct Client *)data;
 969     const gchar *t;
 970     gchar *f;
 971
 972     if (key_common(widget, event, data))
 973         return TRUE;
 974
 975     if (event->type == GDK_KEY_PRESS)
 976     {
 977         switch (((GdkEventKey *)event)->keyval)
 978         {
 979             case GDK_KEY_KP_Enter:
 980             case GDK_KEY_Return:
 981                 gtk_widget_grab_focus(c->web_view);
 982                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 983                 if (t != NULL && t[0] == ':' && t[1] == '/')
 984                 {
 985                     if (search_text != NULL)
 986                         g_free(search_text);
 987                     search_text = g_strdup(t + 2);
 988                     search(c, 0);
 989                 }
 990                 else
 991                 {
 992                     f = ensure_uri_scheme(t);
 993                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 994                     g_free(f);
 995                 }
 996                 return TRUE;
 997             case GDK_KEY_Escape:
 998                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 999                 gtk_entry_set_text(GTK_ENTRY(c->location),
1000                                    (t == NULL ? __NAME__ : t));
1001                 return TRUE;
1002         }
1003     }
1004
1005     return FALSE;
1006 }
1007
1008 gboolean
1009 key_tablabel(GtkWidget *widget, GdkEvent *event, gpointer data)
1010 {
1011     GdkScrollDirection direction;
1012
1013     if (event->type == GDK_BUTTON_RELEASE)
1014     {
1015         switch (((GdkEventButton *)event)->button)
1016         {
1017             case 2:
1018                 client_destroy(NULL, data);
1019                 return TRUE;
1020         }
1021     }
1022     else if (event->type == GDK_SCROLL)
1023     {
1024         gdk_event_get_scroll_direction(event, &direction);
1025         switch (direction)
1026         {
1027             case GDK_SCROLL_UP:
1028                 gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
1029                 break;
1030             case GDK_SCROLL_DOWN:
1031                 gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
1032                 break;
1033             default:
1034                 break;
1035         }
1036         return TRUE;
1037     }
1038     return FALSE;
1039 }
1040
1041 gboolean
1042 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
1043 {
1044     struct Client *c = (struct Client *)data;
1045     gdouble dx, dy;
1046     gfloat z;
1047
1048     if (key_common(widget, event, data))
1049         return TRUE;
1050
1051     if (event->type == GDK_KEY_PRESS)
1052     {
1053         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
1054         {
1055             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
1056             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
1057         }
1058     }
1059     else if (event->type == GDK_BUTTON_RELEASE)
1060     {
1061         switch (((GdkEventButton *)event)->button)
1062         {
1063             case 2:
1064                 if (c->hover_uri != NULL)
1065                 {
1066                     client_new(c->hover_uri, NULL, TRUE, FALSE);
1067                     return TRUE;
1068                 }
1069                 break;
1070             case 8:
1071                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
1072                 return TRUE;
1073             case 9:
1074                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
1075                 return TRUE;
1076         }
1077     }
1078     else if (event->type == GDK_SCROLL)
1079     {
1080         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
1081             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
1082         {
1083             gdk_event_get_scroll_deltas(event, &dx, &dy);
1084             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1085             z += -dy * 0.1;
1086             z = dx != 0 ? global_zoom : z;
1087             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1088             return TRUE;
1089         }
1090     }
1091
1092     return FALSE;
1093 }
1094
1095 void
1096 mainwindow_setup(void)
1097 {
1098     mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1099     gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1100     g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1101     gtk_window_set_title(GTK_WINDOW(mw.win), __NAME__);
1102
1103     mw.notebook = gtk_notebook_new();
1104     gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1105     gtk_notebook_set_tab_pos(GTK_NOTEBOOK(mw.notebook), tab_pos);
1106     gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1107     g_signal_connect(G_OBJECT(mw.notebook), "switch-page",
1108                      G_CALLBACK(notebook_switch_page), NULL);
1109 }
1110
1111 void
1112 mainwindow_title(gint idx)
1113 {
1114     GtkWidget *child, *widg, *tablabel;
1115     const gchar *text;
1116
1117     child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(mw.notebook), idx);
1118     if (child == NULL)
1119         return;
1120
1121     widg = gtk_notebook_get_tab_label(GTK_NOTEBOOK(mw.notebook), child);
1122     tablabel = (GtkWidget *)g_object_get_data(G_OBJECT(widg), "lariza-tab-label");
1123     text = gtk_label_get_text(GTK_LABEL(tablabel));
1124     gtk_window_set_title(GTK_WINDOW(mw.win), text);
1125 }
1126
1127 void
1128 notebook_switch_page(GtkNotebook *nb, GtkWidget *p, guint idx, gpointer data)
1129 {
1130     mainwindow_title(idx);
1131 }
1132
1133 gboolean
1134 quit_if_nothing_active(void)
1135 {
1136     if (clients == 0)
1137     {
1138         if (downloads == 0)
1139         {
1140             gtk_main_quit();
1141             return TRUE;
1142         }
1143         else
1144             gtk_widget_show_all(dm.win);
1145     }
1146
1147     return FALSE;
1148 }
1149
1150 gboolean
1151 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1152 {
1153     gchar *uri = NULL;
1154
1155     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1156     if (uri)
1157     {
1158         g_strstrip(uri);
1159         client_new(uri, NULL, TRUE, TRUE);
1160         g_free(uri);
1161     }
1162     return TRUE;
1163 }
1164
1165 void
1166 run_user_scripts(WebKitWebView *web_view)
1167 {
1168     gchar *base = NULL, *path = NULL, *contents = NULL;
1169     const gchar *entry = NULL;
1170     GDir *scriptdir = NULL;
1171
1172     base = g_build_filename(g_get_user_config_dir(), __NAME__, "user-scripts", NULL);
1173     scriptdir = g_dir_open(base, 0, NULL);
1174     if (scriptdir != NULL)
1175     {
1176         while ((entry = g_dir_read_name(scriptdir)) != NULL)
1177         {
1178             path = g_build_filename(base, entry, NULL);
1179             if (g_str_has_suffix(path, ".js"))
1180             {
1181                 if (g_file_get_contents(path, &contents, NULL, NULL))
1182                 {
1183                     webkit_web_view_run_javascript(web_view, contents, NULL, NULL, NULL);
1184                     g_free(contents);
1185                 }
1186             }
1187             g_free(path);
1188         }
1189         g_dir_close(scriptdir);
1190     }
1191
1192     g_free(base);
1193 }
1194
1195 void
1196 search(gpointer data, gint direction)
1197 {
1198     struct Client *c = (struct Client *)data;
1199     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
1200     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
1201
1202     if (search_text == NULL)
1203         return;
1204
1205     switch (direction)
1206     {
1207         case 0:
1208             webkit_find_controller_search(fc, search_text,
1209                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
1210                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1211                                           G_MAXUINT);
1212             break;
1213         case 1:
1214             webkit_find_controller_search_next(fc);
1215             break;
1216         case -1:
1217             webkit_find_controller_search_previous(fc);
1218             break;
1219     }
1220 }
1221
1222 void
1223 show_web_view(WebKitWebView *web_view, gpointer data)
1224 {
1225     struct Client *c = (struct Client *)data;
1226     gint idx;
1227
1228     (void)web_view;
1229
1230     gtk_widget_show_all(mw.win);
1231
1232     if (c->focus_new_tab)
1233     {
1234         idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1235         if (idx != -1)
1236             gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1237
1238         gtk_widget_grab_focus(c->web_view);
1239     }
1240 }
1241
1242 void
1243 trust_user_certs(WebKitWebContext *wc)
1244 {
1245     GTlsCertificate *cert;
1246     const gchar *basedir, *file, *absfile;
1247     GDir *dir;
1248
1249     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1250     dir = g_dir_open(basedir, 0, NULL);
1251     if (dir != NULL)
1252     {
1253         file = g_dir_read_name(dir);
1254         while (file != NULL)
1255         {
1256             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1257                                        file, NULL);
1258             cert = g_tls_certificate_new_from_file(absfile, NULL);
1259             if (cert == NULL)
1260                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1261             else
1262                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1263             file = g_dir_read_name(dir);
1264         }
1265         g_dir_close(dir);
1266     }
1267 }
1268
1269
1270 int
1271 main(int argc, char **argv)
1272 {
1273     int opt, i;
1274
1275     gtk_init(&argc, &argv);
1276     grab_environment_configuration();
1277
1278     while ((opt = getopt(argc, argv, "C")) != -1)
1279     {
1280         switch (opt)
1281         {
1282             case 'C':
1283                 cooperative_instances = FALSE;
1284                 break;
1285             default:
1286                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1287                 exit(EXIT_FAILURE);
1288         }
1289     }
1290
1291     if (cooperative_instances)
1292         cooperation_setup();
1293
1294     if (!cooperative_instances || cooperative_alone)
1295         init_default_web_context();
1296
1297     downloadmanager_setup();
1298     mainwindow_setup();
1299
1300     if (optind >= argc)
1301         client_new(home_uri, NULL, TRUE, TRUE);
1302     else
1303     {
1304         for (i = optind; i < argc; i++)
1305             client_new(argv[i], NULL, TRUE, TRUE);
1306     }
1307
1308     if (!cooperative_instances || cooperative_alone)
1309         gtk_main();
1310
1311     exit(EXIT_SUCCESS);
1312 }