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 gboolean button_tablabel(GtkWidget *, GdkEvent *, gpointer);
  18 void client_destroy(GtkWidget *, gpointer);
  19 WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean,
  20                           gboolean);
  21 WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  22                                   gpointer);
  23 void cooperation_setup(void);
  24 void changed_download_progress(GObject *, GParamSpec *, gpointer);
  25 void changed_load_progress(GObject *, GParamSpec *, gpointer);
  26 void changed_favicon(GObject *, GParamSpec *, gpointer);
  27 void changed_title(GObject *, GParamSpec *, gpointer);
  28 void changed_uri(GObject *, GParamSpec *, gpointer);
  29 gboolean crashed_web_view(WebKitWebView *, gpointer);
  30 gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  31                        WebKitPolicyDecisionType, gpointer);
  32 gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  33 void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  34 void downloadmanager_cancel(GtkToolButton *, gpointer);
  35 gboolean downloadmanager_delete(GtkWidget *, gpointer);
  36 void downloadmanager_setup(void);
  37 gchar *ensure_uri_scheme(const gchar *);
  38 void external_handler_run(GSimpleAction *, GVariant *, gpointer);
  39 void grab_environment_configuration(void);
  40 void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  41 void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  42 void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  43 gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  44 gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  45 gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  46 gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  47 void keywords_load(void);
  48 gboolean keywords_try_search(WebKitWebView *, const gchar *);
  49 void mainwindow_setup(void);
  50 gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  51                        WebKitHitTestResult *, gpointer);
  52 gboolean quit_if_nothing_active(void);
  53 gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  54 void run_user_scripts(WebKitWebView *);
  55 void search(gpointer, gint);
  56 void show_web_view(WebKitWebView *, gpointer);
  57 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 *tabicon;
  67     GtkWidget *tablabel;
  68     GtkWidget *vbox;
  69     GtkWidget *web_view;
  70     gboolean focus_new_tab;
  71 };
  72
  73 struct MainWindow
  74 {
  75     GtkWidget *win;
  76     GtkWidget *notebook;
  77 } mw;
  78
  79 struct DownloadManager
  80 {
  81     GtkWidget *scroll;
  82     GtkWidget *toolbar;
  83     GtkWidget *win;
  84 } dm;
  85
  86
  87 const gchar *accepted_language[2] = { NULL, NULL };
  88 gint clients = 0, downloads = 0;
  89 gboolean cooperative_alone = TRUE;
  90 gboolean cooperative_instances = TRUE;
  91 int cooperative_pipe_fp = 0;
  92 gchar *download_dir = "/var/tmp";
  93 gboolean enable_console_to_stdout = FALSE;
  94 gchar *fifo_suffix = "main";
  95 gdouble global_zoom = 1.0;
  96 gchar *history_file = NULL;
  97 gchar *home_uri = "about:blank";
  98 gboolean initial_wc_setup_done = FALSE;
  99 GHashTable *keywords = NULL;
 100 gchar *search_text = NULL;
 101 GtkPositionType tab_pos = GTK_POS_TOP;
 102 gint tab_width_chars = 20;
 103 gchar *user_agent = NULL;
 104
 105
 106 gboolean
 107 button_tablabel(GtkWidget *widget, GdkEvent *event, gpointer data)
 108 {
 109     if (event->type == GDK_BUTTON_RELEASE)
 110     {
 111         switch (((GdkEventButton *)event)->button)
 112         {
 113             case 2:
 114                 client_destroy(NULL, data);
 115                 return TRUE;
 116         }
 117     }
 118     return FALSE;
 119 }
 120
 121 void
 122 client_destroy(GtkWidget *widget, gpointer data)
 123 {
 124     struct Client *c = (struct Client *)data;
 125     gint idx;
 126
 127     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 128                                          changed_load_progress, c);
 129
 130     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
 131     if (idx == -1)
 132         fprintf(stderr, __NAME__": Tab index was -1, bamboozled\n");
 133     else
 134         gtk_notebook_remove_page(GTK_NOTEBOOK(mw.notebook), idx);
 135
 136     free(c);
 137     clients--;
 138
 139     quit_if_nothing_active();
 140 }
 141
 142 WebKitWebView *
 143 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show,
 144            gboolean focus_tab)
 145 {
 146     struct Client *c;
 147     WebKitWebContext *wc;
 148     gchar *f;
 149     GtkWidget *evbox, *tabbox;
 150
 151     if (uri != NULL && cooperative_instances && !cooperative_alone)
 152     {
 153         f = ensure_uri_scheme(uri);
 154         write(cooperative_pipe_fp, f, strlen(f));
 155         write(cooperative_pipe_fp, "\n", 1);
 156         g_free(f);
 157         return NULL;
 158     }
 159
 160     c = calloc(1, sizeof(struct Client));
 161     if (!c)
 162     {
 163         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 164         exit(EXIT_FAILURE);
 165     }
 166
 167     c->focus_new_tab = focus_tab;
 168
 169     if (related_wv == NULL)
 170         c->web_view = webkit_web_view_new();
 171     else
 172         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 173     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 174
 175     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 176     g_signal_connect(G_OBJECT(c->web_view), "notify::favicon",
 177                      G_CALLBACK(changed_favicon), c);
 178     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 179                      G_CALLBACK(changed_title), c);
 180     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 181                      G_CALLBACK(changed_uri), c);
 182     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 183                      G_CALLBACK(changed_load_progress), c);
 184     g_signal_connect(G_OBJECT(c->web_view), "create",
 185                      G_CALLBACK(client_new_request), NULL);
 186     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 187                      G_CALLBACK(menu_web_view), c);
 188     g_signal_connect(G_OBJECT(c->web_view), "close",
 189                      G_CALLBACK(client_destroy), c);
 190     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 191                      G_CALLBACK(decide_policy), NULL);
 192     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 193                      G_CALLBACK(key_web_view), c);
 194     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 195                      G_CALLBACK(key_web_view), c);
 196     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 197                      G_CALLBACK(key_web_view), c);
 198     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 199                      G_CALLBACK(hover_web_view), c);
 200     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 201                      G_CALLBACK(crashed_web_view), c);
 202
 203     if (!initial_wc_setup_done)
 204     {
 205         if (accepted_language[0] != NULL)
 206             webkit_web_context_set_preferred_languages(wc, accepted_language);
 207
 208         g_signal_connect(G_OBJECT(wc), "download-started",
 209                          G_CALLBACK(download_handle_start), NULL);
 210
 211         trust_user_certs(wc);
 212
 213         webkit_web_context_set_favicon_database_directory(wc, NULL);
 214
 215         initial_wc_setup_done = TRUE;
 216     }
 217
 218     if (user_agent != NULL)
 219         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 220                      "user-agent", user_agent, NULL);
 221
 222     if (enable_console_to_stdout)
 223         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 224
 225     webkit_settings_set_enable_developer_extras(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 226
 227     c->location = gtk_entry_new();
 228     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 229                      G_CALLBACK(key_location), c);
 230     g_signal_connect(G_OBJECT(c->location), "icon-release",
 231                      G_CALLBACK(icon_location), c);
 232     /* XXX This is a workaround. Setting this to NULL (which is done in
 233      * grab_feeds_finished() if no feed has been detected) adds a little
 234      * padding left of the text. Not sure why. The point of this call
 235      * right here is to have that padding right from the start. This
 236      * avoids a graphical artifact. */
 237     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 238                                       GTK_ENTRY_ICON_PRIMARY,
 239                                       NULL);
 240
 241     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 242     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 243     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 244
 245     c->tabicon = gtk_image_new_from_icon_name("text-html", GTK_ICON_SIZE_SMALL_TOOLBAR);
 246
 247     c->tablabel = gtk_label_new(__NAME__);
 248     gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 249     gtk_label_set_width_chars(GTK_LABEL(c->tablabel), tab_width_chars);
 250     gtk_widget_set_has_tooltip(c->tablabel, TRUE);
 251
 252     /* XXX I don't own a HiDPI screen, so I don't know if scale_factor
 253      * does the right thing. */
 254     tabbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,
 255                          5 * gtk_widget_get_scale_factor(mw.win));
 256     gtk_box_pack_start(GTK_BOX(tabbox), c->tabicon, FALSE, FALSE, 0);
 257     gtk_box_pack_start(GTK_BOX(tabbox), c->tablabel, TRUE, TRUE, 0);
 258
 259     evbox = gtk_event_box_new();
 260     gtk_container_add(GTK_CONTAINER(evbox), tabbox);
 261     g_signal_connect(G_OBJECT(evbox), "button-release-event",
 262                      G_CALLBACK(button_tablabel), c);
 263
 264     /* This only shows the event box and the label inside, nothing else.
 265      * Needed because the evbox/label is "internal" to the notebook and
 266      * not part of the normal "widget tree" (IIUC). */
 267     gtk_widget_show_all(evbox);
 268
 269     gtk_notebook_insert_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox,
 270                              gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)) + 1);
 271     gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 272
 273     if (show)
 274         show_web_view(NULL, c);
 275     else
 276         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 277                          G_CALLBACK(show_web_view), c);
 278
 279     if (uri != NULL)
 280     {
 281         f = ensure_uri_scheme(uri);
 282         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 283         g_free(f);
 284     }
 285
 286     clients++;
 287
 288     return WEBKIT_WEB_VIEW(c->web_view);
 289 }
 290
 291 WebKitWebView *
 292 client_new_request(WebKitWebView *web_view,
 293                    WebKitNavigationAction *navigation_action, gpointer data)
 294 {
 295     return client_new(NULL, web_view, FALSE, FALSE);
 296 }
 297
 298 void
 299 cooperation_setup(void)
 300 {
 301     GIOChannel *towatch;
 302     gchar *fifofilename, *fifopath;
 303
 304     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 305     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 306     g_free(fifofilename);
 307
 308     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 309         mkfifo(fifopath, 0600);
 310
 311     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 312     if (!cooperative_pipe_fp)
 313     {
 314         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 315     }
 316     else
 317     {
 318         if (write(cooperative_pipe_fp, "", 0) == -1)
 319         {
 320             /* Could not do an empty write to the FIFO which means there's
 321              * no one listening. */
 322             close(cooperative_pipe_fp);
 323             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 324             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 325         }
 326         else
 327             cooperative_alone = FALSE;
 328     }
 329
 330     g_free(fifopath);
 331 }
 332
 333 void
 334 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 335 {
 336     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 337     WebKitURIResponse *resp;
 338     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 339     gdouble p, size_mb;
 340     const gchar *uri;
 341     gchar *t, *filename, *base;
 342
 343     p = webkit_download_get_estimated_progress(download);
 344     p = p > 1 ? 1 : p;
 345     p = p < 0 ? 0 : p;
 346     p *= 100;
 347     resp = webkit_download_get_response(download);
 348     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 349
 350     uri = webkit_download_get_destination(download);
 351     filename = g_filename_from_uri(uri, NULL, NULL);
 352     if (filename == NULL)
 353     {
 354         /* This really should not happen because WebKit uses that URI to
 355          * write to a file... */
 356         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 357         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 358                             webkit_uri_response_get_uri(resp), p, size_mb);
 359     }
 360     else
 361     {
 362         base = g_path_get_basename(filename);
 363         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 364         g_free(filename);
 365         g_free(base);
 366     }
 367     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 368     g_free(t);
 369 }
 370
 371 void
 372 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 373 {
 374     struct Client *c = (struct Client *)data;
 375     gdouble p;
 376     gchar *grab_feeds =
 377         "a = document.querySelectorAll('"
 378         "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 379         "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 380         "');"
 381         "if (a.length == 0)"
 382         "    null;"
 383         "else"
 384         "{"
 385         "    out = '';"
 386         "    for (i = 0; i < a.length; i++)"
 387         "    {"
 388         "        url = encodeURIComponent(a[i].href);"
 389         "        if ('title' in a[i] && a[i].title != '')"
 390         "            title = encodeURIComponent(a[i].title);"
 391         "        else"
 392         "            title = url;"
 393         "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 394         "    }"
 395         "    out;"
 396         "}";
 397
 398     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 399     if (p == 1)
 400     {
 401         p = 0;
 402
 403         /* The page has loaded fully. We now run the short JavaScript
 404          * snippet above that operates on the DOM. It tries to grab all
 405          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 406          * references. */
 407         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 408                                        grab_feeds, NULL,
 409                                        grab_feeds_finished, c);
 410
 411         run_user_scripts(WEBKIT_WEB_VIEW(c->web_view));
 412     }
 413     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 414 }
 415
 416 void
 417 changed_favicon(GObject *obj, GParamSpec *pspec, gpointer data)
 418 {
 419     struct Client *c = (struct Client *)data;
 420     cairo_surface_t *f;
 421     int w, h, w_should, h_should;
 422     GdkPixbuf *pb, *pb_scaled;
 423
 424     f = webkit_web_view_get_favicon(WEBKIT_WEB_VIEW(c->web_view));
 425     if (f == NULL)
 426     {
 427         gtk_image_set_from_icon_name(GTK_IMAGE(c->tabicon), "text-html",
 428                                      GTK_ICON_SIZE_SMALL_TOOLBAR);
 429     }
 430     else
 431     {
 432         w = cairo_image_surface_get_width(f);
 433         h = cairo_image_surface_get_height(f);
 434         pb = gdk_pixbuf_get_from_surface(f, 0, 0, w, h);
 435         if (pb != NULL)
 436         {
 437             w_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 438             h_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 439             pb_scaled = gdk_pixbuf_scale_simple(pb, w_should, h_should,
 440                                                 GDK_INTERP_BILINEAR);
 441             gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb_scaled);
 442
 443             g_object_unref(pb_scaled);
 444             g_object_unref(pb);
 445         }
 446     }
 447 }
 448
 449 void
 450 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 451 {
 452     const gchar *t, *u;
 453     struct Client *c = (struct Client *)data;
 454
 455     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 456     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 457
 458     u = u == NULL ? __NAME__ : u;
 459     u = u[0] == 0 ? __NAME__ : u;
 460
 461     t = t == NULL ? u : t;
 462     t = t[0] == 0 ? u : t;
 463
 464     gtk_label_set_text(GTK_LABEL(c->tablabel), t);
 465     gtk_widget_set_tooltip_text(c->tablabel, t);
 466 }
 467
 468 void
 469 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 470 {
 471     const gchar *t;
 472     struct Client *c = (struct Client *)data;
 473     FILE *fp;
 474
 475     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 476
 477     /* When a web process crashes, we get a "notify::uri" signal, but we
 478      * can no longer read a meaningful URI. It's just an empty string
 479      * now. Not updating the location bar in this scenario is important,
 480      * because we would override the "WEB PROCESS CRASHED" message. */
 481     if (t != NULL && strlen(t) > 0)
 482     {
 483         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 484
 485         if (history_file != NULL)
 486         {
 487             fp = fopen(history_file, "a");
 488             if (fp != NULL)
 489             {
 490                 fprintf(fp, "%s\n", t);
 491                 fclose(fp);
 492             }
 493             else
 494                 perror(__NAME__": Error opening history file");
 495         }
 496     }
 497 }
 498
 499 gboolean
 500 crashed_web_view(WebKitWebView *web_view, gpointer data)
 501 {
 502     gchar *t;
 503     struct Client *c = (struct Client *)data;
 504
 505     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 506                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 507     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 508     g_free(t);
 509
 510     return TRUE;
 511 }
 512
 513 gboolean
 514 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 515               WebKitPolicyDecisionType type, gpointer data)
 516 {
 517     WebKitResponsePolicyDecision *r;
 518
 519     switch (type)
 520     {
 521         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 522             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 523             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 524                 webkit_policy_decision_download(decision);
 525             else
 526                 webkit_policy_decision_use(decision);
 527             break;
 528         default:
 529             /* Use whatever default there is. */
 530             return FALSE;
 531     }
 532     return TRUE;
 533 }
 534
 535 void
 536 download_handle_finished(WebKitDownload *download, gpointer data)
 537 {
 538     downloads--;
 539 }
 540
 541 void
 542 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 543                       gpointer data)
 544 {
 545     g_signal_connect(G_OBJECT(download), "decide-destination",
 546                      G_CALLBACK(download_handle), data);
 547 }
 548
 549 gboolean
 550 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 551 {
 552     gchar *sug_clean, *path, *path2 = NULL, *uri;
 553     GtkToolItem *tb;
 554     int suffix = 1;
 555     size_t i;
 556
 557     sug_clean = g_strdup(suggested_filename);
 558     for (i = 0; i < strlen(sug_clean); i++)
 559         if (sug_clean[i] == G_DIR_SEPARATOR)
 560             sug_clean[i] = '_';
 561
 562     path = g_build_filename(download_dir, sug_clean, NULL);
 563     path2 = g_strdup(path);
 564     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 565     {
 566         g_free(path2);
 567
 568         path2 = g_strdup_printf("%s.%d", path, suffix);
 569         suffix++;
 570     }
 571
 572     if (suffix == 1000)
 573     {
 574         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 575         webkit_download_cancel(download);
 576     }
 577     else
 578     {
 579         uri = g_filename_to_uri(path2, NULL, NULL);
 580         webkit_download_set_destination(download, uri);
 581         g_free(uri);
 582
 583         tb = gtk_tool_button_new(NULL, NULL);
 584         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 585         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 586         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 587         gtk_widget_show_all(dm.win);
 588
 589         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 590                          G_CALLBACK(changed_download_progress), tb);
 591
 592         downloads++;
 593         g_signal_connect(G_OBJECT(download), "finished",
 594                          G_CALLBACK(download_handle_finished), NULL);
 595
 596         g_object_ref(download);
 597         g_signal_connect(G_OBJECT(tb), "clicked",
 598                          G_CALLBACK(downloadmanager_cancel), download);
 599     }
 600
 601     g_free(sug_clean);
 602     g_free(path);
 603     g_free(path2);
 604
 605     /* Propagate -- to whom it may concern. */
 606     return FALSE;
 607 }
 608
 609 void
 610 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 611 {
 612     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 613
 614     webkit_download_cancel(download);
 615     g_object_unref(download);
 616
 617     gtk_widget_destroy(GTK_WIDGET(tb));
 618 }
 619
 620 gboolean
 621 downloadmanager_delete(GtkWidget *obj, gpointer data)
 622 {
 623     if (!quit_if_nothing_active())
 624         gtk_widget_hide(dm.win);
 625
 626     return TRUE;
 627 }
 628
 629 void
 630 downloadmanager_setup(void)
 631 {
 632     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 633     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 634     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 635     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 636     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 637                      G_CALLBACK(downloadmanager_delete), NULL);
 638     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 639                      G_CALLBACK(key_downloadmanager), NULL);
 640
 641     dm.toolbar = gtk_toolbar_new();
 642     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 643                                    GTK_ORIENTATION_VERTICAL);
 644     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 645     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 646
 647     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 648     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 649                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 650     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 651
 652     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 653 }
 654
 655 gchar *
 656 ensure_uri_scheme(const gchar *t)
 657 {
 658     gchar *f, *fabs;
 659
 660     f = g_ascii_strdown(t, -1);
 661     if (!g_str_has_prefix(f, "http:") &&
 662         !g_str_has_prefix(f, "https:") &&
 663         !g_str_has_prefix(f, "file:") &&
 664         !g_str_has_prefix(f, "about:") &&
 665         !g_str_has_prefix(f, "data:"))
 666     {
 667         g_free(f);
 668         fabs = realpath(t, NULL);
 669         if (fabs != NULL)
 670         {
 671             f = g_strdup_printf("file://%s", fabs);
 672             free(fabs);
 673         }
 674         else
 675             f = g_strdup_printf("http://%s", t);
 676         return f;
 677     }
 678     else
 679         return g_strdup(t);
 680 }
 681
 682 void
 683 external_handler_run(GSimpleAction *simple, GVariant *param, gpointer data)
 684 {
 685     struct Client *c = (struct Client *)data;
 686     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 687     GPid pid;
 688     GError *err = NULL;
 689
 690     (void)simple;
 691     (void)param;
 692
 693     argv[2] = c->external_handler_uri;
 694     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 695                        &pid, &err))
 696     {
 697         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 698                 err->message);
 699         g_error_free(err);
 700     }
 701     else
 702         g_spawn_close_pid(pid);
 703 }
 704
 705 void
 706 grab_environment_configuration(void)
 707 {
 708     const gchar *e;
 709
 710     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 711     if (e != NULL)
 712         accepted_language[0] = g_strdup(e);
 713
 714     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 715     if (e != NULL)
 716         download_dir = g_strdup(e);
 717
 718     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 719     if (e != NULL)
 720         enable_console_to_stdout = TRUE;
 721
 722     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 723     if (e != NULL)
 724         fifo_suffix = g_strdup(e);
 725
 726     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 727     if (e != NULL)
 728         history_file = g_strdup(e);
 729
 730     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 731     if (e != NULL)
 732         home_uri = g_strdup(e);
 733
 734     e = g_getenv(__NAME_UPPERCASE__"_TAB_POS");
 735     if (e != NULL)
 736     {
 737         if (strcmp(e, "top") == 0)
 738             tab_pos = GTK_POS_TOP;
 739         if (strcmp(e, "right") == 0)
 740             tab_pos = GTK_POS_RIGHT;
 741         if (strcmp(e, "bottom") == 0)
 742             tab_pos = GTK_POS_BOTTOM;
 743         if (strcmp(e, "left") == 0)
 744             tab_pos = GTK_POS_LEFT;
 745     }
 746
 747     e = g_getenv(__NAME_UPPERCASE__"_TAB_WIDTH_CHARS");
 748     if (e != NULL)
 749         tab_width_chars = atoi(e);
 750
 751     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 752     if (e != NULL)
 753         user_agent = g_strdup(e);
 754
 755     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 756     if (e != NULL)
 757         global_zoom = atof(e);
 758 }
 759
 760 void
 761 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 762 {
 763     struct Client *c = (struct Client *)data;
 764     WebKitJavascriptResult *js_result;
 765     JSCValue *value;
 766     JSCException *exception;
 767     GError *err = NULL;
 768     gchar *str_value;
 769
 770     g_free(c->feed_html);
 771     c->feed_html = NULL;
 772
 773     /* This was taken almost verbatim from the example in WebKit's
 774      * documentation:
 775      *
 776      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html#webkit-web-view-run-javascript-finish */
 777
 778     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 779                                                       result, &err);
 780     if (!js_result)
 781     {
 782         fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 783         g_error_free(err);
 784         return;
 785     }
 786
 787     value = webkit_javascript_result_get_js_value(js_result);
 788     if (jsc_value_is_string(value))
 789     {
 790         str_value = jsc_value_to_string(value);
 791         exception = jsc_context_get_exception(jsc_value_get_context(value));
 792         if (exception != NULL)
 793         {
 794             fprintf(stderr, __NAME__": Error running javascript: %s\n",
 795                     jsc_exception_get_message(exception));
 796         }
 797         else
 798             c->feed_html = str_value;
 799
 800         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 801                                           GTK_ENTRY_ICON_PRIMARY,
 802                                           "application-rss+xml-symbolic");
 803         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 804                                        GTK_ENTRY_ICON_PRIMARY,
 805                                        TRUE);
 806     }
 807     else
 808     {
 809         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 810                                           GTK_ENTRY_ICON_PRIMARY,
 811                                           NULL);
 812     }
 813
 814     webkit_javascript_result_unref(js_result);
 815 }
 816
 817 void
 818 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 819                gpointer data)
 820 {
 821     struct Client *c = (struct Client *)data;
 822
 823     if (!gtk_widget_is_focus(c->location))
 824     {
 825         if (webkit_hit_test_result_context_is_link(ht))
 826         {
 827             gtk_entry_set_text(GTK_ENTRY(c->location),
 828                                webkit_hit_test_result_get_link_uri(ht));
 829
 830             if (c->hover_uri != NULL)
 831                 g_free(c->hover_uri);
 832             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 833         }
 834         else
 835         {
 836             gtk_entry_set_text(GTK_ENTRY(c->location),
 837                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 838
 839             if (c->hover_uri != NULL)
 840                 g_free(c->hover_uri);
 841             c->hover_uri = NULL;
 842         }
 843     }
 844 }
 845
 846 void
 847 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 848               gpointer data)
 849 {
 850     struct Client *c = (struct Client *)data;
 851     gchar *d;
 852     gchar *data_template =
 853         "data:text/html,"
 854         "<!DOCTYPE html>"
 855         "<html>"
 856         "    <head>"
 857         "        <meta charset=\"UTF-8\">"
 858         "        <title>Feeds</title>"
 859         "    </head>"
 860         "    <body>"
 861         "        <p>Feeds found on this page:</p>"
 862         "        <ul>"
 863         "        %s"
 864         "        </ul>"
 865         "    </body>"
 866         "</html>";
 867
 868     if (c->feed_html != NULL)
 869     {
 870         /* What we're actually trying to do is show a simple HTML page
 871          * that lists all the feeds on the current page. The function
 872          * webkit_web_view_load_html() looks like the proper way to do
 873          * that. Sad thing is, it doesn't create a history entry, but
 874          * instead simply replaces the content of the current page. This
 875          * is not what we want.
 876          *
 877          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 878          * mechanism to show my custom HTML snippet *and* create a
 879          * history entry.
 880          *
 881          * [0]: https://tools.ietf.org/html/rfc2397
 882          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 883         d = g_strdup_printf(data_template, c->feed_html);
 884         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 885         g_free(d);
 886     }
 887 }
 888
 889 gboolean
 890 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 891 {
 892     struct Client *c = (struct Client *)data;
 893     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 894     gchar *f;
 895
 896     if (event->type == GDK_KEY_PRESS)
 897     {
 898         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 899         {
 900             switch (((GdkEventKey *)event)->keyval)
 901             {
 902                 case GDK_KEY_q:  /* close window (left hand) */
 903                     client_destroy(NULL, c);
 904                     return TRUE;
 905                 case GDK_KEY_w:  /* home (left hand) */
 906                     f = ensure_uri_scheme(home_uri);
 907                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 908                     g_free(f);
 909                     return TRUE;
 910                 case GDK_KEY_e:  /* new tab (left hand) */
 911                     f = ensure_uri_scheme(home_uri);
 912                     client_new(f, NULL, TRUE, TRUE);
 913                     g_free(f);
 914                     return TRUE;
 915                 case GDK_KEY_r:  /* reload (left hand) */
 916                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 917                                                         c->web_view));
 918                     return TRUE;
 919                 case GDK_KEY_d:  /* download manager (left hand) */
 920                     gtk_widget_show_all(dm.win);
 921                     return TRUE;
 922                 case GDK_KEY_2:  /* search forward (left hand) */
 923                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 924                     search(c, 1);
 925                     return TRUE;
 926                 case GDK_KEY_3:  /* search backward (left hand) */
 927                     search(c, -1);
 928                     return TRUE;
 929                 case GDK_KEY_l:  /* location (BOTH hands) */
 930                     gtk_widget_grab_focus(c->location);
 931                     return TRUE;
 932                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 933                     gtk_widget_grab_focus(c->location);
 934                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 935                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 936                     return TRUE;
 937                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 938                     trust_user_certs(wc);
 939                     return TRUE;
 940                 case GDK_KEY_x:  /* launch external handler (left hand) */
 941                     if (c->external_handler_uri != NULL)
 942                         g_free(c->external_handler_uri);
 943                     c->external_handler_uri = g_strdup(
 944                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 945                     external_handler_run(NULL, NULL, c);
 946                     return TRUE;
 947                 case GDK_KEY_a:  /* go one tab to the left (left hand) */
 948                     gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 949                     return TRUE;
 950                 case GDK_KEY_s:  /* go one tab to the right (left hand) */
 951                     gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 952                     return TRUE;
 953             }
 954         }
 955         /* navigate backward (left hand) */
 956         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 957         {
 958             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 959             return TRUE;
 960         }
 961         /* navigate forward (left hand) */
 962         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 963         {
 964             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 965             return TRUE;
 966         }
 967     }
 968
 969     return FALSE;
 970 }
 971
 972 gboolean
 973 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 974 {
 975     if (event->type == GDK_KEY_PRESS)
 976     {
 977         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 978         {
 979             switch (((GdkEventKey *)event)->keyval)
 980             {
 981                 case GDK_KEY_d:  /* close window (left hand) */
 982                 case GDK_KEY_q:
 983                     downloadmanager_delete(dm.win, NULL);
 984                     return TRUE;
 985             }
 986         }
 987     }
 988
 989     return FALSE;
 990 }
 991
 992 gboolean
 993 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 994 {
 995     struct Client *c = (struct Client *)data;
 996     const gchar *t;
 997     gchar *f;
 998
 999     if (key_common(widget, event, data))
1000         return TRUE;
1001
1002     if (event->type == GDK_KEY_PRESS)
1003     {
1004         switch (((GdkEventKey *)event)->keyval)
1005         {
1006             case GDK_KEY_KP_Enter:
1007             case GDK_KEY_Return:
1008                 gtk_widget_grab_focus(c->web_view);
1009                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
1010                 if (t != NULL && t[0] == ':' && t[1] == '/')
1011                 {
1012                     if (search_text != NULL)
1013                         g_free(search_text);
1014                     search_text = g_strdup(t + 2);
1015                     search(c, 0);
1016                 }
1017                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
1018                 {
1019                     f = ensure_uri_scheme(t);
1020                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
1021                     g_free(f);
1022                 }
1023                 return TRUE;
1024             case GDK_KEY_Escape:
1025                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
1026                 gtk_entry_set_text(GTK_ENTRY(c->location),
1027                                    (t == NULL ? __NAME__ : t));
1028                 return TRUE;
1029         }
1030     }
1031
1032     return FALSE;
1033 }
1034
1035 gboolean
1036 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
1037 {
1038     struct Client *c = (struct Client *)data;
1039     gdouble dx, dy;
1040     gfloat z;
1041
1042     if (key_common(widget, event, data))
1043         return TRUE;
1044
1045     if (event->type == GDK_KEY_PRESS)
1046     {
1047         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
1048         {
1049             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
1050             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
1051         }
1052     }
1053     else if (event->type == GDK_BUTTON_RELEASE)
1054     {
1055         switch (((GdkEventButton *)event)->button)
1056         {
1057             case 2:
1058                 if (c->hover_uri != NULL)
1059                 {
1060                     client_new(c->hover_uri, NULL, TRUE, FALSE);
1061                     return TRUE;
1062                 }
1063                 break;
1064             case 8:
1065                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
1066                 return TRUE;
1067             case 9:
1068                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
1069                 return TRUE;
1070         }
1071     }
1072     else if (event->type == GDK_SCROLL)
1073     {
1074         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
1075             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
1076         {
1077             gdk_event_get_scroll_deltas(event, &dx, &dy);
1078             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1079             z += -dy * 0.1;
1080             z = dx != 0 ? global_zoom : z;
1081             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1082             return TRUE;
1083         }
1084     }
1085
1086     return FALSE;
1087 }
1088
1089 void
1090 keywords_load(void)
1091 {
1092     GError *err = NULL;
1093     GIOChannel *channel = NULL;
1094     gchar *path = NULL, *buf = NULL;
1095     gchar **tokens = NULL;
1096
1097     keywords = g_hash_table_new(g_str_hash, g_str_equal);
1098
1099     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
1100                             NULL);
1101     channel = g_io_channel_new_file(path, "r", &err);
1102     if (channel != NULL)
1103     {
1104         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
1105                == G_IO_STATUS_NORMAL)
1106         {
1107             g_strstrip(buf);
1108             if (buf[0] != '#')
1109             {
1110                 tokens = g_strsplit(buf, " ", 2);
1111                 if (tokens[0] != NULL && tokens[1] != NULL)
1112                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
1113                                         g_strdup(tokens[1]));
1114                 g_strfreev(tokens);
1115             }
1116             g_free(buf);
1117         }
1118         g_io_channel_shutdown(channel, FALSE, NULL);
1119     }
1120     g_free(path);
1121 }
1122
1123 gboolean
1124 keywords_try_search(WebKitWebView *web_view, const gchar *t)
1125 {
1126     gboolean ret = FALSE;
1127     gchar **tokens = NULL;
1128     gchar *val = NULL, *escaped = NULL, *uri = NULL;
1129
1130     tokens = g_strsplit(t, " ", 2);
1131     if (tokens[0] != NULL && tokens[1] != NULL)
1132     {
1133         val = g_hash_table_lookup(keywords, tokens[0]);
1134         if (val != NULL)
1135         {
1136             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
1137             uri = g_strdup_printf((gchar *)val, escaped);
1138             webkit_web_view_load_uri(web_view, uri);
1139             g_free(uri);
1140             g_free(escaped);
1141             ret = TRUE;
1142         }
1143     }
1144     g_strfreev(tokens);
1145
1146     return ret;
1147 }
1148
1149 void
1150 mainwindow_setup(void)
1151 {
1152     mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1153     gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1154     g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1155     gtk_window_set_title(GTK_WINDOW(mw.win), __NAME__);
1156
1157     mw.notebook = gtk_notebook_new();
1158     gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1159     gtk_notebook_set_tab_pos(GTK_NOTEBOOK(mw.notebook), tab_pos);
1160     gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1161 }
1162
1163 gboolean
1164 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
1165               WebKitHitTestResult *ht, gpointer data)
1166 {
1167     struct Client *c = (struct Client *)data;
1168     GSimpleAction *action = NULL;
1169     WebKitContextMenuItem *mi = NULL;
1170     const gchar *uri = NULL;
1171
1172     (void)ev;
1173
1174     if (webkit_hit_test_result_context_is_link(ht))
1175         uri = webkit_hit_test_result_get_link_uri(ht);
1176     else if (webkit_hit_test_result_context_is_image(ht))
1177         uri = webkit_hit_test_result_get_image_uri(ht);
1178     else if (webkit_hit_test_result_context_is_media(ht))
1179         uri = webkit_hit_test_result_get_media_uri(ht);
1180
1181     if (uri != NULL)
1182     {
1183         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
1184
1185         if (c->external_handler_uri != NULL)
1186             g_free(c->external_handler_uri);
1187         c->external_handler_uri = g_strdup(uri);
1188         action = g_simple_action_new("external_handler", NULL);
1189         g_signal_connect(G_OBJECT(action), "activate",
1190                          G_CALLBACK(external_handler_run), data);
1191         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
1192                                                        "Open with external handler",
1193                                                        NULL);
1194         webkit_context_menu_append(menu, mi);
1195         g_object_unref(action);
1196     }
1197
1198     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
1199     return FALSE;
1200 }
1201
1202 gboolean
1203 quit_if_nothing_active(void)
1204 {
1205     if (clients == 0)
1206     {
1207         if (downloads == 0)
1208         {
1209             gtk_main_quit();
1210             return TRUE;
1211         }
1212         else
1213             gtk_widget_show_all(dm.win);
1214     }
1215
1216     return FALSE;
1217 }
1218
1219 gboolean
1220 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1221 {
1222     gchar *uri = NULL;
1223
1224     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1225     if (uri)
1226     {
1227         g_strstrip(uri);
1228         client_new(uri, NULL, TRUE, TRUE);
1229         g_free(uri);
1230     }
1231     return TRUE;
1232 }
1233
1234 void
1235 run_user_scripts(WebKitWebView *web_view)
1236 {
1237     gchar *base = NULL, *path = NULL, *contents = NULL;
1238     const gchar *entry = NULL;
1239     GDir *scriptdir = NULL;
1240
1241     base = g_build_filename(g_get_user_config_dir(), __NAME__, "user-scripts", NULL);
1242     scriptdir = g_dir_open(base, 0, NULL);
1243     if (scriptdir != NULL)
1244     {
1245         while ((entry = g_dir_read_name(scriptdir)) != NULL)
1246         {
1247             path = g_build_filename(base, entry, NULL);
1248             if (g_str_has_suffix(path, ".js"))
1249             {
1250                 if (g_file_get_contents(path, &contents, NULL, NULL))
1251                 {
1252                     webkit_web_view_run_javascript(web_view, contents, NULL, NULL, NULL);
1253                     g_free(contents);
1254                 }
1255             }
1256             g_free(path);
1257         }
1258         g_dir_close(scriptdir);
1259     }
1260
1261     g_free(base);
1262 }
1263
1264 void
1265 search(gpointer data, gint direction)
1266 {
1267     struct Client *c = (struct Client *)data;
1268     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
1269     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
1270
1271     if (search_text == NULL)
1272         return;
1273
1274     switch (direction)
1275     {
1276         case 0:
1277             webkit_find_controller_search(fc, search_text,
1278                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
1279                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1280                                           G_MAXUINT);
1281             break;
1282         case 1:
1283             webkit_find_controller_search_next(fc);
1284             break;
1285         case -1:
1286             webkit_find_controller_search_previous(fc);
1287             break;
1288     }
1289 }
1290
1291 void
1292 show_web_view(WebKitWebView *web_view, gpointer data)
1293 {
1294     struct Client *c = (struct Client *)data;
1295     gint idx;
1296
1297     (void)web_view;
1298
1299     gtk_widget_show_all(mw.win);
1300
1301     if (c->focus_new_tab)
1302     {
1303         idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1304         if (idx != -1)
1305             gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1306
1307         gtk_widget_grab_focus(c->web_view);
1308     }
1309 }
1310
1311 void
1312 trust_user_certs(WebKitWebContext *wc)
1313 {
1314     GTlsCertificate *cert;
1315     const gchar *basedir, *file, *absfile;
1316     GDir *dir;
1317
1318     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1319     dir = g_dir_open(basedir, 0, NULL);
1320     if (dir != NULL)
1321     {
1322         file = g_dir_read_name(dir);
1323         while (file != NULL)
1324         {
1325             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1326                                        file, NULL);
1327             cert = g_tls_certificate_new_from_file(absfile, NULL);
1328             if (cert == NULL)
1329                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1330             else
1331                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1332             file = g_dir_read_name(dir);
1333         }
1334         g_dir_close(dir);
1335     }
1336 }
1337
1338
1339 int
1340 main(int argc, char **argv)
1341 {
1342     gchar *c;
1343     int opt, i;
1344
1345     gtk_init(&argc, &argv);
1346     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1347         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1348
1349     grab_environment_configuration();
1350
1351     while ((opt = getopt(argc, argv, "C")) != -1)
1352     {
1353         switch (opt)
1354         {
1355             case 'C':
1356                 cooperative_instances = FALSE;
1357                 break;
1358             default:
1359                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1360                 exit(EXIT_FAILURE);
1361         }
1362     }
1363
1364     keywords_load();
1365     if (cooperative_instances)
1366         cooperation_setup();
1367     downloadmanager_setup();
1368
1369     mainwindow_setup();
1370
1371     if (!cooperative_instances || cooperative_alone)
1372     {
1373         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1374                              NULL);
1375         webkit_web_context_set_web_extensions_directory(
1376             webkit_web_context_get_default(), c
1377         );
1378     }
1379
1380     if (optind >= argc)
1381         client_new(home_uri, NULL, TRUE, TRUE);
1382     else
1383     {
1384         for (i = optind; i < argc; i++)
1385             client_new(argv[i], NULL, TRUE, TRUE);
1386     }
1387
1388     if (!cooperative_instances || cooperative_alone)
1389         gtk_main();
1390     exit(EXIT_SUCCESS);
1391 }