browser.c

   1 #include <limits.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <fcntl.h>
   7 #include <string.h>
   8
   9 #include <gtk/gtk.h>
  10 #include <gtk/gtkx.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <gio/gio.h>
  13 #include <webkit2/webkit2.h>
  14 #include <JavaScriptCore/JavaScript.h>
  15
  16
  17 static gboolean button_tablabel(GtkWidget *, GdkEvent *, gpointer);
  18 static void client_destroy(GtkWidget *, gpointer);
  19 static WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean);
  20 static WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  21                                          gpointer);
  22 static void cooperation_setup(void);
  23 static void changed_download_progress(GObject *, GParamSpec *, gpointer);
  24 static void changed_load_progress(GObject *, GParamSpec *, gpointer);
  25 static void changed_title(GObject *, GParamSpec *, gpointer);
  26 static void changed_uri(GObject *, GParamSpec *, gpointer);
  27 static gboolean crashed_web_view(WebKitWebView *, gpointer);
  28 static gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  29                               WebKitPolicyDecisionType, gpointer);
  30 static gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  31 static void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  32 static void downloadmanager_cancel(GtkToolButton *, gpointer);
  33 static gboolean downloadmanager_delete(GtkWidget *, gpointer);
  34 static void downloadmanager_setup(void);
  35 static gchar *ensure_uri_scheme(const gchar *);
  36 static void external_handler_run(GSimpleAction *, GVariant *, gpointer);
  37 static void grab_environment_configuration(void);
  38 static void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  39 static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  40 static void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  41 static gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  42 static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  43 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  44 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  45 static void keywords_load(void);
  46 static gboolean keywords_try_search(WebKitWebView *, const gchar *);
  47 static void mainwindow_setup(void);
  48 static void mainwindow_title(gint);
  49 static void mainwindow_title_before(GtkNotebook *, GtkWidget *, guint, gpointer);
  50 static gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  51                               WebKitHitTestResult *, gpointer);
  52 static gboolean quit_if_nothing_active(void);
  53 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  54 static void run_user_scripts(WebKitWebView *);
  55 static void search(gpointer, gint);
  56 static void show_web_view(WebKitWebView *, gpointer);
  57 static void trust_user_certs(WebKitWebContext *);
  58
  59
  60 struct Client
  61 {
  62     gchar *external_handler_uri;
  63     gchar *hover_uri;
  64     gchar *feed_html;
  65     GtkWidget *location;
  66     GtkWidget *tablabel;
  67     GtkWidget *vbox;
  68     GtkWidget *web_view;
  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 static const gchar *accepted_language[2] = { NULL, NULL };
  86 static gint clients = 0, downloads = 0;
  87 static gboolean cooperative_alone = TRUE;
  88 static gboolean cooperative_instances = TRUE;
  89 static int cooperative_pipe_fp = 0;
  90 static gchar *download_dir = "/var/tmp";
  91 static gboolean enable_console_to_stdout = FALSE;
  92 static gchar *fifo_suffix = "main";
  93 static gdouble global_zoom = 1.0;
  94 static gchar *history_file = NULL;
  95 static gchar *home_uri = "about:blank";
  96 static gboolean initial_wc_setup_done = FALSE;
  97 static GHashTable *keywords = NULL;
  98 static gchar *search_text = NULL;
  99 static gchar *user_agent = NULL;
 100
 101
 102 gboolean
 103 button_tablabel(GtkWidget *widget, GdkEvent *event, gpointer data)
 104 {
 105     if (event->type == GDK_BUTTON_RELEASE)
 106     {
 107         switch (((GdkEventButton *)event)->button)
 108         {
 109             case 2:
 110                 client_destroy(NULL, data);
 111                 return TRUE;
 112         }
 113     }
 114     return FALSE;
 115 }
 116
 117 void
 118 client_destroy(GtkWidget *widget, gpointer data)
 119 {
 120     struct Client *c = (struct Client *)data;
 121     gint idx;
 122
 123     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 124                                          changed_load_progress, c);
 125
 126     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
 127     if (idx == -1)
 128         fprintf(stderr, __NAME__": Tab index was -1, bamboozled\n");
 129     else
 130         gtk_notebook_remove_page(GTK_NOTEBOOK(mw.notebook), idx);
 131
 132     free(c);
 133     clients--;
 134
 135     quit_if_nothing_active();
 136 }
 137
 138 WebKitWebView *
 139 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 140 {
 141     struct Client *c;
 142     WebKitWebContext *wc;
 143     gchar *f;
 144     GtkWidget *evbox;
 145
 146     if (uri != NULL && cooperative_instances && !cooperative_alone)
 147     {
 148         f = ensure_uri_scheme(uri);
 149         write(cooperative_pipe_fp, f, strlen(f));
 150         write(cooperative_pipe_fp, "\n", 1);
 151         g_free(f);
 152         return NULL;
 153     }
 154
 155     c = calloc(1, sizeof(struct Client));
 156     if (!c)
 157     {
 158         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 159         exit(EXIT_FAILURE);
 160     }
 161
 162     if (related_wv == NULL)
 163         c->web_view = webkit_web_view_new();
 164     else
 165         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 166     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 167
 168     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 169     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 170                      G_CALLBACK(changed_title), c);
 171     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 172                      G_CALLBACK(changed_uri), c);
 173     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 174                      G_CALLBACK(changed_load_progress), c);
 175     g_signal_connect(G_OBJECT(c->web_view), "create",
 176                      G_CALLBACK(client_new_request), NULL);
 177     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 178                      G_CALLBACK(menu_web_view), c);
 179     g_signal_connect(G_OBJECT(c->web_view), "close",
 180                      G_CALLBACK(client_destroy), c);
 181     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 182                      G_CALLBACK(decide_policy), NULL);
 183     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 184                      G_CALLBACK(key_web_view), c);
 185     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 186                      G_CALLBACK(key_web_view), c);
 187     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 188                      G_CALLBACK(key_web_view), c);
 189     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 190                      G_CALLBACK(hover_web_view), c);
 191     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 192                      G_CALLBACK(crashed_web_view), c);
 193
 194     if (!initial_wc_setup_done)
 195     {
 196         if (accepted_language[0] != NULL)
 197             webkit_web_context_set_preferred_languages(wc, accepted_language);
 198
 199         g_signal_connect(G_OBJECT(wc), "download-started",
 200                          G_CALLBACK(download_handle_start), NULL);
 201
 202         trust_user_certs(wc);
 203
 204         initial_wc_setup_done = TRUE;
 205     }
 206
 207     if (user_agent != NULL)
 208         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 209                      "user-agent", user_agent, NULL);
 210
 211     if (enable_console_to_stdout)
 212         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 213
 214     webkit_settings_set_enable_developer_extras(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 215
 216     c->location = gtk_entry_new();
 217     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 218                      G_CALLBACK(key_location), c);
 219     g_signal_connect(G_OBJECT(c->location), "icon-release",
 220                      G_CALLBACK(icon_location), c);
 221     /* XXX This is a workaround. Setting this to NULL (which is done in
 222      * grab_feeds_finished() if no feed has been detected) adds a little
 223      * padding left of the text. Not sure why. The point of this call
 224      * right here is to have that padding right from the start. This
 225      * avoids a graphical artifact. */
 226     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 227                                       GTK_ENTRY_ICON_PRIMARY,
 228                                       NULL);
 229
 230     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 231     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 232     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 233
 234     c->tablabel = gtk_label_new(__NAME__);
 235     gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 236     gtk_label_set_width_chars(GTK_LABEL(c->tablabel), 20);
 237
 238     evbox = gtk_event_box_new();
 239     gtk_container_add(GTK_CONTAINER(evbox), c->tablabel);
 240     g_signal_connect(G_OBJECT(evbox), "button-release-event",
 241                      G_CALLBACK(button_tablabel), c);
 242
 243     /* This only shows the event box and the label inside, nothing else.
 244      * Needed because the evbox/label is "internal" to the notebook and
 245      * not part of the normal "widget tree" (IIUC). */
 246     gtk_widget_show_all(evbox);
 247
 248     gtk_notebook_append_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox);
 249     gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 250
 251     if (show)
 252         show_web_view(NULL, c);
 253     else
 254         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 255                          G_CALLBACK(show_web_view), c);
 256
 257     if (uri != NULL)
 258     {
 259         f = ensure_uri_scheme(uri);
 260         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 261         g_free(f);
 262     }
 263
 264     clients++;
 265
 266     return WEBKIT_WEB_VIEW(c->web_view);
 267 }
 268
 269 WebKitWebView *
 270 client_new_request(WebKitWebView *web_view,
 271                    WebKitNavigationAction *navigation_action, gpointer data)
 272 {
 273     return client_new(NULL, web_view, FALSE);
 274 }
 275
 276 void
 277 cooperation_setup(void)
 278 {
 279     GIOChannel *towatch;
 280     gchar *fifofilename, *fifopath;
 281
 282     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 283     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 284     g_free(fifofilename);
 285
 286     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 287         mkfifo(fifopath, 0600);
 288
 289     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 290     if (!cooperative_pipe_fp)
 291     {
 292         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 293     }
 294     else
 295     {
 296         if (write(cooperative_pipe_fp, "", 0) == -1)
 297         {
 298             /* Could not do an empty write to the FIFO which means there's
 299              * no one listening. */
 300             close(cooperative_pipe_fp);
 301             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 302             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 303         }
 304         else
 305             cooperative_alone = FALSE;
 306     }
 307
 308     g_free(fifopath);
 309 }
 310
 311 void
 312 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 313 {
 314     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 315     WebKitURIResponse *resp;
 316     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 317     gdouble p, size_mb;
 318     const gchar *uri;
 319     gchar *t, *filename, *base;
 320
 321     p = webkit_download_get_estimated_progress(download);
 322     p = p > 1 ? 1 : p;
 323     p = p < 0 ? 0 : p;
 324     p *= 100;
 325     resp = webkit_download_get_response(download);
 326     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 327
 328     uri = webkit_download_get_destination(download);
 329     filename = g_filename_from_uri(uri, NULL, NULL);
 330     if (filename == NULL)
 331     {
 332         /* This really should not happen because WebKit uses that URI to
 333          * write to a file... */
 334         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 335         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 336                             webkit_uri_response_get_uri(resp), p, size_mb);
 337     }
 338     else
 339     {
 340         base = g_path_get_basename(filename);
 341         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 342         g_free(filename);
 343         g_free(base);
 344     }
 345     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 346     g_free(t);
 347 }
 348
 349 void
 350 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 351 {
 352     struct Client *c = (struct Client *)data;
 353     gdouble p;
 354     gchar *grab_feeds =
 355         "a = document.querySelectorAll('"
 356         "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 357         "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 358         "');"
 359         "if (a.length == 0)"
 360         "    null;"
 361         "else"
 362         "{"
 363         "    out = '';"
 364         "    for (i = 0; i < a.length; i++)"
 365         "    {"
 366         "        url = encodeURIComponent(a[i].href);"
 367         "        if ('title' in a[i] && a[i].title != '')"
 368         "            title = encodeURIComponent(a[i].title);"
 369         "        else"
 370         "            title = url;"
 371         "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 372         "    }"
 373         "    out;"
 374         "}";
 375
 376     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 377     if (p == 1)
 378     {
 379         p = 0;
 380
 381         /* The page has loaded fully. We now run the short JavaScript
 382          * snippet above that operates on the DOM. It tries to grab all
 383          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 384          * references. */
 385         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 386                                        grab_feeds, NULL,
 387                                        grab_feeds_finished, c);
 388
 389         run_user_scripts(WEBKIT_WEB_VIEW(c->web_view));
 390     }
 391     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 392 }
 393
 394 void
 395 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 396 {
 397     const gchar *t, *u;
 398     struct Client *c = (struct Client *)data;
 399
 400     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 401     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 402
 403     u = u == NULL ? __NAME__ : u;
 404     u = u[0] == 0 ? __NAME__ : u;
 405
 406     t = t == NULL ? u : t;
 407     t = t[0] == 0 ? u : t;
 408
 409     gtk_label_set_text(GTK_LABEL(c->tablabel), t);
 410     mainwindow_title(-1);
 411 }
 412
 413 void
 414 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 415 {
 416     const gchar *t;
 417     struct Client *c = (struct Client *)data;
 418     FILE *fp;
 419
 420     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 421
 422     /* When a web process crashes, we get a "notify::uri" signal, but we
 423      * can no longer read a meaningful URI. It's just an empty string
 424      * now. Not updating the location bar in this scenario is important,
 425      * because we would override the "WEB PROCESS CRASHED" message. */
 426     if (t != NULL && strlen(t) > 0)
 427     {
 428         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 429
 430         if (history_file != NULL)
 431         {
 432             fp = fopen(history_file, "a");
 433             if (fp != NULL)
 434             {
 435                 fprintf(fp, "%s\n", t);
 436                 fclose(fp);
 437             }
 438             else
 439                 perror(__NAME__": Error opening history file");
 440         }
 441     }
 442 }
 443
 444 gboolean
 445 crashed_web_view(WebKitWebView *web_view, gpointer data)
 446 {
 447     gchar *t;
 448     struct Client *c = (struct Client *)data;
 449
 450     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 451                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 452     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 453     g_free(t);
 454
 455     return TRUE;
 456 }
 457
 458 gboolean
 459 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 460               WebKitPolicyDecisionType type, gpointer data)
 461 {
 462     WebKitResponsePolicyDecision *r;
 463
 464     switch (type)
 465     {
 466         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 467             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 468             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 469                 webkit_policy_decision_download(decision);
 470             else
 471                 webkit_policy_decision_use(decision);
 472             break;
 473         default:
 474             /* Use whatever default there is. */
 475             return FALSE;
 476     }
 477     return TRUE;
 478 }
 479
 480 void
 481 download_handle_finished(WebKitDownload *download, gpointer data)
 482 {
 483     downloads--;
 484 }
 485
 486 void
 487 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 488                       gpointer data)
 489 {
 490     g_signal_connect(G_OBJECT(download), "decide-destination",
 491                      G_CALLBACK(download_handle), data);
 492 }
 493
 494 gboolean
 495 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 496 {
 497     gchar *sug_clean, *path, *path2 = NULL, *uri;
 498     GtkToolItem *tb;
 499     int suffix = 1;
 500     size_t i;
 501
 502     sug_clean = g_strdup(suggested_filename);
 503     for (i = 0; i < strlen(sug_clean); i++)
 504         if (sug_clean[i] == G_DIR_SEPARATOR)
 505             sug_clean[i] = '_';
 506
 507     path = g_build_filename(download_dir, sug_clean, NULL);
 508     path2 = g_strdup(path);
 509     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 510     {
 511         g_free(path2);
 512
 513         path2 = g_strdup_printf("%s.%d", path, suffix);
 514         suffix++;
 515     }
 516
 517     if (suffix == 1000)
 518     {
 519         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 520         webkit_download_cancel(download);
 521     }
 522     else
 523     {
 524         uri = g_filename_to_uri(path2, NULL, NULL);
 525         webkit_download_set_destination(download, uri);
 526         g_free(uri);
 527
 528         tb = gtk_tool_button_new(NULL, NULL);
 529         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 530         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 531         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 532         gtk_widget_show_all(dm.win);
 533
 534         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 535                          G_CALLBACK(changed_download_progress), tb);
 536
 537         downloads++;
 538         g_signal_connect(G_OBJECT(download), "finished",
 539                          G_CALLBACK(download_handle_finished), NULL);
 540
 541         g_object_ref(download);
 542         g_signal_connect(G_OBJECT(tb), "clicked",
 543                          G_CALLBACK(downloadmanager_cancel), download);
 544     }
 545
 546     g_free(sug_clean);
 547     g_free(path);
 548     g_free(path2);
 549
 550     /* Propagate -- to whom it may concern. */
 551     return FALSE;
 552 }
 553
 554 void
 555 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 556 {
 557     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 558
 559     webkit_download_cancel(download);
 560     g_object_unref(download);
 561
 562     gtk_widget_destroy(GTK_WIDGET(tb));
 563 }
 564
 565 gboolean
 566 downloadmanager_delete(GtkWidget *obj, gpointer data)
 567 {
 568     if (!quit_if_nothing_active())
 569         gtk_widget_hide(dm.win);
 570
 571     return TRUE;
 572 }
 573
 574 void
 575 downloadmanager_setup(void)
 576 {
 577     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 578     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 579     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 580     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 581     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 582                      G_CALLBACK(downloadmanager_delete), NULL);
 583     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 584                      G_CALLBACK(key_downloadmanager), NULL);
 585
 586     dm.toolbar = gtk_toolbar_new();
 587     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 588                                    GTK_ORIENTATION_VERTICAL);
 589     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 590     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 591
 592     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 593     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 594                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 595     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 596
 597     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 598 }
 599
 600 gchar *
 601 ensure_uri_scheme(const gchar *t)
 602 {
 603     gchar *f, *fabs;
 604
 605     f = g_ascii_strdown(t, -1);
 606     if (!g_str_has_prefix(f, "http:") &&
 607         !g_str_has_prefix(f, "https:") &&
 608         !g_str_has_prefix(f, "file:") &&
 609         !g_str_has_prefix(f, "about:") &&
 610         !g_str_has_prefix(f, "data:"))
 611     {
 612         g_free(f);
 613         fabs = realpath(t, NULL);
 614         if (fabs != NULL)
 615         {
 616             f = g_strdup_printf("file://%s", fabs);
 617             free(fabs);
 618         }
 619         else
 620             f = g_strdup_printf("http://%s", t);
 621         return f;
 622     }
 623     else
 624         return g_strdup(t);
 625 }
 626
 627 void
 628 external_handler_run(GSimpleAction *simple, GVariant *param, gpointer data)
 629 {
 630     struct Client *c = (struct Client *)data;
 631     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 632     GPid pid;
 633     GError *err = NULL;
 634
 635     (void)simple;
 636     (void)param;
 637
 638     argv[2] = c->external_handler_uri;
 639     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 640                        &pid, &err))
 641     {
 642         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 643                 err->message);
 644         g_error_free(err);
 645     }
 646     else
 647         g_spawn_close_pid(pid);
 648 }
 649
 650 void
 651 grab_environment_configuration(void)
 652 {
 653     const gchar *e;
 654
 655     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 656     if (e != NULL)
 657         accepted_language[0] = g_strdup(e);
 658
 659     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 660     if (e != NULL)
 661         download_dir = g_strdup(e);
 662
 663     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 664     if (e != NULL)
 665         enable_console_to_stdout = TRUE;
 666
 667     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 668     if (e != NULL)
 669         fifo_suffix = g_strdup(e);
 670
 671     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 672     if (e != NULL)
 673         history_file = g_strdup(e);
 674
 675     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 676     if (e != NULL)
 677         home_uri = g_strdup(e);
 678
 679     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 680     if (e != NULL)
 681         user_agent = g_strdup(e);
 682
 683     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 684     if (e != NULL)
 685         global_zoom = atof(e);
 686 }
 687
 688 void
 689 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 690 {
 691     struct Client *c = (struct Client *)data;
 692     WebKitJavascriptResult *js_result;
 693     JSCValue *value;
 694     JSCException *exception;
 695     GError *err = NULL;
 696     gchar *str_value;
 697
 698     g_free(c->feed_html);
 699     c->feed_html = NULL;
 700
 701     /* This was taken almost verbatim from the example in WebKit's
 702      * documentation:
 703      *
 704      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html#webkit-web-view-run-javascript-finish */
 705
 706     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 707                                                       result, &err);
 708     if (!js_result)
 709     {
 710         fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 711         g_error_free(err);
 712         return;
 713     }
 714
 715     value = webkit_javascript_result_get_js_value(js_result);
 716     if (jsc_value_is_string(value))
 717     {
 718         str_value = jsc_value_to_string(value);
 719         exception = jsc_context_get_exception(jsc_value_get_context(value));
 720         if (exception != NULL)
 721         {
 722             fprintf(stderr, __NAME__": Error running javascript: %s\n",
 723                     jsc_exception_get_message(exception));
 724         }
 725         else
 726             c->feed_html = str_value;
 727
 728         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 729                                           GTK_ENTRY_ICON_PRIMARY,
 730                                           "application-rss+xml-symbolic");
 731         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 732                                        GTK_ENTRY_ICON_PRIMARY,
 733                                        TRUE);
 734     }
 735     else
 736     {
 737         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 738                                           GTK_ENTRY_ICON_PRIMARY,
 739                                           NULL);
 740     }
 741
 742     webkit_javascript_result_unref(js_result);
 743 }
 744
 745 void
 746 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 747                gpointer data)
 748 {
 749     struct Client *c = (struct Client *)data;
 750
 751     if (!gtk_widget_is_focus(c->location))
 752     {
 753         if (webkit_hit_test_result_context_is_link(ht))
 754         {
 755             gtk_entry_set_text(GTK_ENTRY(c->location),
 756                                webkit_hit_test_result_get_link_uri(ht));
 757
 758             if (c->hover_uri != NULL)
 759                 g_free(c->hover_uri);
 760             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 761         }
 762         else
 763         {
 764             gtk_entry_set_text(GTK_ENTRY(c->location),
 765                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 766
 767             if (c->hover_uri != NULL)
 768                 g_free(c->hover_uri);
 769             c->hover_uri = NULL;
 770         }
 771     }
 772 }
 773
 774 void
 775 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 776               gpointer data)
 777 {
 778     struct Client *c = (struct Client *)data;
 779     gchar *d;
 780     gchar *data_template =
 781         "data:text/html,"
 782         "<!DOCTYPE html>"
 783         "<html>"
 784         "    <head>"
 785         "        <meta charset=\"UTF-8\">"
 786         "        <title>Feeds</title>"
 787         "    </head>"
 788         "    <body>"
 789         "        <p>Feeds found on this page:</p>"
 790         "        <ul>"
 791         "        %s"
 792         "        </ul>"
 793         "    </body>"
 794         "</html>";
 795
 796     if (c->feed_html != NULL)
 797     {
 798         /* What we're actually trying to do is show a simple HTML page
 799          * that lists all the feeds on the current page. The function
 800          * webkit_web_view_load_html() looks like the proper way to do
 801          * that. Sad thing is, it doesn't create a history entry, but
 802          * instead simply replaces the content of the current page. This
 803          * is not what we want.
 804          *
 805          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 806          * mechanism to show my custom HTML snippet *and* create a
 807          * history entry.
 808          *
 809          * [0]: https://tools.ietf.org/html/rfc2397
 810          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 811         d = g_strdup_printf(data_template, c->feed_html);
 812         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 813         g_free(d);
 814     }
 815 }
 816
 817 gboolean
 818 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 819 {
 820     struct Client *c = (struct Client *)data;
 821     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 822     gchar *f;
 823
 824     if (event->type == GDK_KEY_PRESS)
 825     {
 826         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 827         {
 828             switch (((GdkEventKey *)event)->keyval)
 829             {
 830                 case GDK_KEY_q:  /* close window (left hand) */
 831                     client_destroy(NULL, c);
 832                     return TRUE;
 833                 case GDK_KEY_w:  /* home (left hand) */
 834                     f = ensure_uri_scheme(home_uri);
 835                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 836                     g_free(f);
 837                     return TRUE;
 838                 case GDK_KEY_e:  /* new tab (left hand) */
 839                     f = ensure_uri_scheme(home_uri);
 840                     client_new(f, NULL, TRUE);
 841                     g_free(f);
 842                     return TRUE;
 843                 case GDK_KEY_r:  /* reload (left hand) */
 844                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 845                                                         c->web_view));
 846                     return TRUE;
 847                 case GDK_KEY_d:  /* download manager (left hand) */
 848                     gtk_widget_show_all(dm.win);
 849                     return TRUE;
 850                 case GDK_KEY_2:  /* search forward (left hand) */
 851                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 852                     search(c, 1);
 853                     return TRUE;
 854                 case GDK_KEY_3:  /* search backward (left hand) */
 855                     search(c, -1);
 856                     return TRUE;
 857                 case GDK_KEY_l:  /* location (BOTH hands) */
 858                     gtk_widget_grab_focus(c->location);
 859                     return TRUE;
 860                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 861                     gtk_widget_grab_focus(c->location);
 862                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 863                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 864                     return TRUE;
 865                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 866                     trust_user_certs(wc);
 867                     return TRUE;
 868                 case GDK_KEY_x:  /* launch external handler (left hand) */
 869                     if (c->external_handler_uri != NULL)
 870                         g_free(c->external_handler_uri);
 871                     c->external_handler_uri = g_strdup(
 872                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 873                     external_handler_run(NULL, NULL, c);
 874                     return TRUE;
 875                 case GDK_KEY_a:  /* go one tab to the left (left hand) */
 876                     gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 877                     return TRUE;
 878                 case GDK_KEY_s:  /* go one tab to the right (left hand) */
 879                     gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 880                     return TRUE;
 881             }
 882         }
 883         /* navigate backward (left hand) */
 884         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 885         {
 886             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 887             return TRUE;
 888         }
 889         /* navigate forward (left hand) */
 890         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 891         {
 892             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 893             return TRUE;
 894         }
 895     }
 896
 897     return FALSE;
 898 }
 899
 900 gboolean
 901 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 902 {
 903     if (event->type == GDK_KEY_PRESS)
 904     {
 905         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 906         {
 907             switch (((GdkEventKey *)event)->keyval)
 908             {
 909                 case GDK_KEY_d:  /* close window (left hand) */
 910                 case GDK_KEY_q:
 911                     downloadmanager_delete(dm.win, NULL);
 912                     return TRUE;
 913             }
 914         }
 915     }
 916
 917     return FALSE;
 918 }
 919
 920 gboolean
 921 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 922 {
 923     struct Client *c = (struct Client *)data;
 924     const gchar *t;
 925     gchar *f;
 926
 927     if (key_common(widget, event, data))
 928         return TRUE;
 929
 930     if (event->type == GDK_KEY_PRESS)
 931     {
 932         switch (((GdkEventKey *)event)->keyval)
 933         {
 934             case GDK_KEY_KP_Enter:
 935             case GDK_KEY_Return:
 936                 gtk_widget_grab_focus(c->web_view);
 937                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 938                 if (t != NULL && t[0] == ':' && t[1] == '/')
 939                 {
 940                     if (search_text != NULL)
 941                         g_free(search_text);
 942                     search_text = g_strdup(t + 2);
 943                     search(c, 0);
 944                 }
 945                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 946                 {
 947                     f = ensure_uri_scheme(t);
 948                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 949                     g_free(f);
 950                 }
 951                 return TRUE;
 952             case GDK_KEY_Escape:
 953                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 954                 gtk_entry_set_text(GTK_ENTRY(c->location),
 955                                    (t == NULL ? __NAME__ : t));
 956                 return TRUE;
 957         }
 958     }
 959
 960     return FALSE;
 961 }
 962
 963 gboolean
 964 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 965 {
 966     struct Client *c = (struct Client *)data;
 967     gdouble dx, dy;
 968     gfloat z;
 969
 970     if (key_common(widget, event, data))
 971         return TRUE;
 972
 973     if (event->type == GDK_KEY_PRESS)
 974     {
 975         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 976         {
 977             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 978             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 979         }
 980     }
 981     else if (event->type == GDK_BUTTON_RELEASE)
 982     {
 983         switch (((GdkEventButton *)event)->button)
 984         {
 985             case 2:
 986                 if (c->hover_uri != NULL)
 987                 {
 988                     client_new(c->hover_uri, NULL, TRUE);
 989                     return TRUE;
 990                 }
 991                 break;
 992             case 8:
 993                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 994                 return TRUE;
 995             case 9:
 996                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 997                 return TRUE;
 998         }
 999     }
1000     else if (event->type == GDK_SCROLL)
1001     {
1002         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
1003             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
1004         {
1005             gdk_event_get_scroll_deltas(event, &dx, &dy);
1006             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1007             z += -dy * 0.1;
1008             z = dx != 0 ? global_zoom : z;
1009             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1010             return TRUE;
1011         }
1012     }
1013
1014     return FALSE;
1015 }
1016
1017 void
1018 keywords_load(void)
1019 {
1020     GError *err = NULL;
1021     GIOChannel *channel = NULL;
1022     gchar *path = NULL, *buf = NULL;
1023     gchar **tokens = NULL;
1024
1025     keywords = g_hash_table_new(g_str_hash, g_str_equal);
1026
1027     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
1028                             NULL);
1029     channel = g_io_channel_new_file(path, "r", &err);
1030     if (channel != NULL)
1031     {
1032         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
1033                == G_IO_STATUS_NORMAL)
1034         {
1035             g_strstrip(buf);
1036             if (buf[0] != '#')
1037             {
1038                 tokens = g_strsplit(buf, " ", 2);
1039                 if (tokens[0] != NULL && tokens[1] != NULL)
1040                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
1041                                         g_strdup(tokens[1]));
1042                 g_strfreev(tokens);
1043             }
1044             g_free(buf);
1045         }
1046         g_io_channel_shutdown(channel, FALSE, NULL);
1047     }
1048     g_free(path);
1049 }
1050
1051 gboolean
1052 keywords_try_search(WebKitWebView *web_view, const gchar *t)
1053 {
1054     gboolean ret = FALSE;
1055     gchar **tokens = NULL;
1056     gchar *val = NULL, *escaped = NULL, *uri = NULL;
1057
1058     tokens = g_strsplit(t, " ", 2);
1059     if (tokens[0] != NULL && tokens[1] != NULL)
1060     {
1061         val = g_hash_table_lookup(keywords, tokens[0]);
1062         if (val != NULL)
1063         {
1064             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
1065             uri = g_strdup_printf((gchar *)val, escaped);
1066             webkit_web_view_load_uri(web_view, uri);
1067             g_free(uri);
1068             g_free(escaped);
1069             ret = TRUE;
1070         }
1071     }
1072     g_strfreev(tokens);
1073
1074     return ret;
1075 }
1076
1077 void
1078 mainwindow_setup(void)
1079 {
1080     mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1081     gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1082     g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1083     gtk_window_set_title(GTK_WINDOW(mw.win), __NAME__);
1084
1085     mw.notebook = gtk_notebook_new();
1086     gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1087     gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1088     g_signal_connect(G_OBJECT(mw.notebook), "switch-page",
1089                      G_CALLBACK(mainwindow_title_before), NULL);
1090 }
1091
1092 void
1093 mainwindow_title_before(GtkNotebook *nb, GtkWidget *p, guint idx, gpointer data)
1094 {
1095     mainwindow_title(idx);
1096 }
1097
1098 void
1099 mainwindow_title(gint idx)
1100 {
1101     GtkWidget *child, *evbox, *label;
1102     const gchar *text;
1103
1104     if (idx == -1)
1105     {
1106         idx = gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook));
1107         if (idx == -1)
1108             return;
1109     }
1110
1111     child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(mw.notebook), idx);
1112     if (child == NULL)
1113         return;
1114
1115     evbox = gtk_notebook_get_tab_label(GTK_NOTEBOOK(mw.notebook), child);
1116     label = gtk_bin_get_child(GTK_BIN(evbox));
1117     text = gtk_label_get_text(GTK_LABEL(label));
1118     gtk_window_set_title(GTK_WINDOW(mw.win), text);
1119 }
1120
1121 gboolean
1122 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
1123               WebKitHitTestResult *ht, gpointer data)
1124 {
1125     struct Client *c = (struct Client *)data;
1126     GSimpleAction *action = NULL;
1127     WebKitContextMenuItem *mi = NULL;
1128     const gchar *uri = NULL;
1129
1130     (void)ev;
1131
1132     if (webkit_hit_test_result_context_is_link(ht))
1133         uri = webkit_hit_test_result_get_link_uri(ht);
1134     else if (webkit_hit_test_result_context_is_image(ht))
1135         uri = webkit_hit_test_result_get_image_uri(ht);
1136     else if (webkit_hit_test_result_context_is_media(ht))
1137         uri = webkit_hit_test_result_get_media_uri(ht);
1138
1139     if (uri != NULL)
1140     {
1141         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
1142
1143         if (c->external_handler_uri != NULL)
1144             g_free(c->external_handler_uri);
1145         c->external_handler_uri = g_strdup(uri);
1146         action = g_simple_action_new("external_handler", NULL);
1147         g_signal_connect(G_OBJECT(action), "activate",
1148                          G_CALLBACK(external_handler_run), data);
1149         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
1150                                                        "Open with external handler",
1151                                                        NULL);
1152         webkit_context_menu_append(menu, mi);
1153         g_object_unref(action);
1154     }
1155
1156     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
1157     return FALSE;
1158 }
1159
1160 gboolean
1161 quit_if_nothing_active(void)
1162 {
1163     if (clients == 0)
1164     {
1165         if (downloads == 0)
1166         {
1167             gtk_main_quit();
1168             return TRUE;
1169         }
1170         else
1171             gtk_widget_show_all(dm.win);
1172     }
1173
1174     return FALSE;
1175 }
1176
1177 gboolean
1178 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1179 {
1180     gchar *uri = NULL;
1181
1182     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1183     if (uri)
1184     {
1185         g_strstrip(uri);
1186         client_new(uri, NULL, TRUE);
1187         g_free(uri);
1188     }
1189     return TRUE;
1190 }
1191
1192 void
1193 run_user_scripts(WebKitWebView *web_view)
1194 {
1195     gchar *base = NULL, *path = NULL, *contents = NULL;
1196     const gchar *entry = NULL;
1197     GDir *scriptdir = NULL;
1198
1199     base = g_build_filename(g_get_user_config_dir(), __NAME__, "user-scripts", NULL);
1200     scriptdir = g_dir_open(base, 0, NULL);
1201     if (scriptdir != NULL)
1202     {
1203         while ((entry = g_dir_read_name(scriptdir)) != NULL)
1204         {
1205             path = g_build_filename(base, entry, NULL);
1206             if (g_str_has_suffix(path, ".js"))
1207             {
1208                 if (g_file_get_contents(path, &contents, NULL, NULL))
1209                 {
1210                     webkit_web_view_run_javascript(web_view, contents, NULL, NULL, NULL);
1211                     g_free(contents);
1212                 }
1213             }
1214             g_free(path);
1215         }
1216         g_dir_close(scriptdir);
1217     }
1218
1219     g_free(base);
1220 }
1221
1222 void
1223 search(gpointer data, gint direction)
1224 {
1225     struct Client *c = (struct Client *)data;
1226     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
1227     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
1228
1229     if (search_text == NULL)
1230         return;
1231
1232     switch (direction)
1233     {
1234         case 0:
1235             webkit_find_controller_search(fc, search_text,
1236                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
1237                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1238                                           G_MAXUINT);
1239             break;
1240         case 1:
1241             webkit_find_controller_search_next(fc);
1242             break;
1243         case -1:
1244             webkit_find_controller_search_previous(fc);
1245             break;
1246     }
1247 }
1248
1249 void
1250 show_web_view(WebKitWebView *web_view, gpointer data)
1251 {
1252     struct Client *c = (struct Client *)data;
1253     gint idx;
1254
1255     (void)web_view;
1256
1257     gtk_widget_show_all(mw.win);
1258
1259     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1260     if (idx != -1)
1261         gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1262
1263     gtk_widget_grab_focus(c->web_view);
1264 }
1265
1266 void
1267 trust_user_certs(WebKitWebContext *wc)
1268 {
1269     GTlsCertificate *cert;
1270     const gchar *basedir, *file, *absfile;
1271     GDir *dir;
1272
1273     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1274     dir = g_dir_open(basedir, 0, NULL);
1275     if (dir != NULL)
1276     {
1277         file = g_dir_read_name(dir);
1278         while (file != NULL)
1279         {
1280             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1281                                        file, NULL);
1282             cert = g_tls_certificate_new_from_file(absfile, NULL);
1283             if (cert == NULL)
1284                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1285             else
1286                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1287             file = g_dir_read_name(dir);
1288         }
1289         g_dir_close(dir);
1290     }
1291 }
1292
1293
1294 int
1295 main(int argc, char **argv)
1296 {
1297     gchar *c;
1298     int opt, i;
1299
1300     gtk_init(&argc, &argv);
1301     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1302         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1303
1304     grab_environment_configuration();
1305
1306     while ((opt = getopt(argc, argv, "C")) != -1)
1307     {
1308         switch (opt)
1309         {
1310             case 'C':
1311                 cooperative_instances = FALSE;
1312                 break;
1313             default:
1314                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1315                 exit(EXIT_FAILURE);
1316         }
1317     }
1318
1319     keywords_load();
1320     if (cooperative_instances)
1321         cooperation_setup();
1322     downloadmanager_setup();
1323
1324     mainwindow_setup();
1325
1326     if (!cooperative_instances || cooperative_alone)
1327     {
1328         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1329                              NULL);
1330         webkit_web_context_set_web_extensions_directory(
1331             webkit_web_context_get_default(), c
1332         );
1333     }
1334
1335     if (optind >= argc)
1336         client_new(home_uri, NULL, TRUE);
1337     else
1338     {
1339         for (i = optind; i < argc; i++)
1340             client_new(argv[i], NULL, TRUE);
1341     }
1342
1343     if (!cooperative_instances || cooperative_alone)
1344         gtk_main();
1345     exit(EXIT_SUCCESS);
1346 }