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