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_favicon(GObject *, GParamSpec *, gpointer);
  26 static void changed_title(GObject *, GParamSpec *, gpointer);
  27 static void changed_uri(GObject *, GParamSpec *, gpointer);
  28 static gboolean crashed_web_view(WebKitWebView *, gpointer);
  29 static gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  30                               WebKitPolicyDecisionType, gpointer);
  31 static gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  32 static void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  33 static void downloadmanager_cancel(GtkToolButton *, gpointer);
  34 static gboolean downloadmanager_delete(GtkWidget *, gpointer);
  35 static void downloadmanager_setup(void);
  36 static gchar *ensure_uri_scheme(const gchar *);
  37 static void external_handler_run(GSimpleAction *, GVariant *, gpointer);
  38 static void grab_environment_configuration(void);
  39 static void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  40 static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  41 static void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  42 static gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  43 static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  44 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  45 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  46 static void keywords_load(void);
  47 static gboolean keywords_try_search(WebKitWebView *, const gchar *);
  48 static void mainwindow_setup(void);
  49 static void mainwindow_title(gint);
  50 static void mainwindow_title_before(GtkNotebook *, GtkWidget *, guint, gpointer);
  51 static gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  52                               WebKitHitTestResult *, gpointer);
  53 static gboolean quit_if_nothing_active(void);
  54 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  55 static void run_user_scripts(WebKitWebView *);
  56 static void search(gpointer, gint);
  57 static void show_web_view(WebKitWebView *, gpointer);
  58 static void trust_user_certs(WebKitWebContext *);
  59
  60
  61 struct Client
  62 {
  63     gchar *external_handler_uri;
  64     gchar *hover_uri;
  65     gchar *feed_html;
  66     GtkWidget *location;
  67     GtkWidget *tabicon;
  68     GtkWidget *tablabel;
  69     GtkWidget *vbox;
  70     GtkWidget *web_view;
  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 static const gchar *accepted_language[2] = { NULL, NULL };
  88 static gint clients = 0, downloads = 0;
  89 static gboolean cooperative_alone = TRUE;
  90 static gboolean cooperative_instances = TRUE;
  91 static int cooperative_pipe_fp = 0;
  92 static gchar *download_dir = "/var/tmp";
  93 static gboolean enable_console_to_stdout = FALSE;
  94 static gchar *fifo_suffix = "main";
  95 static gdouble global_zoom = 1.0;
  96 static gchar *history_file = NULL;
  97 static gchar *home_uri = "about:blank";
  98 static gboolean initial_wc_setup_done = FALSE;
  99 static GHashTable *keywords = NULL;
 100 static gchar *search_text = NULL;
 101 static GtkPositionType tab_pos = GTK_POS_TOP;
 102 static gint tab_width_chars = 20;
 103 static 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 {
 145     struct Client *c;
 146     WebKitWebContext *wc;
 147     gchar *f;
 148     GtkWidget *evbox, *tabbox;
 149
 150     if (uri != NULL && cooperative_instances && !cooperative_alone)
 151     {
 152         f = ensure_uri_scheme(uri);
 153         write(cooperative_pipe_fp, f, strlen(f));
 154         write(cooperative_pipe_fp, "\n", 1);
 155         g_free(f);
 156         return NULL;
 157     }
 158
 159     c = calloc(1, sizeof(struct Client));
 160     if (!c)
 161     {
 162         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 163         exit(EXIT_FAILURE);
 164     }
 165
 166     if (related_wv == NULL)
 167         c->web_view = webkit_web_view_new();
 168     else
 169         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 170     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 171
 172     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 173     g_signal_connect(G_OBJECT(c->web_view), "notify::favicon",
 174                      G_CALLBACK(changed_favicon), c);
 175     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 176                      G_CALLBACK(changed_title), c);
 177     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 178                      G_CALLBACK(changed_uri), c);
 179     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 180                      G_CALLBACK(changed_load_progress), c);
 181     g_signal_connect(G_OBJECT(c->web_view), "create",
 182                      G_CALLBACK(client_new_request), NULL);
 183     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 184                      G_CALLBACK(menu_web_view), c);
 185     g_signal_connect(G_OBJECT(c->web_view), "close",
 186                      G_CALLBACK(client_destroy), c);
 187     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 188                      G_CALLBACK(decide_policy), NULL);
 189     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 190                      G_CALLBACK(key_web_view), c);
 191     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 192                      G_CALLBACK(key_web_view), c);
 193     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 194                      G_CALLBACK(key_web_view), c);
 195     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 196                      G_CALLBACK(hover_web_view), c);
 197     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 198                      G_CALLBACK(crashed_web_view), c);
 199
 200     if (!initial_wc_setup_done)
 201     {
 202         if (accepted_language[0] != NULL)
 203             webkit_web_context_set_preferred_languages(wc, accepted_language);
 204
 205         g_signal_connect(G_OBJECT(wc), "download-started",
 206                          G_CALLBACK(download_handle_start), NULL);
 207
 208         trust_user_certs(wc);
 209
 210         webkit_web_context_set_favicon_database_directory(wc, NULL);
 211
 212         initial_wc_setup_done = TRUE;
 213     }
 214
 215     if (user_agent != NULL)
 216         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 217                      "user-agent", user_agent, NULL);
 218
 219     if (enable_console_to_stdout)
 220         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 221
 222     webkit_settings_set_enable_developer_extras(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 223
 224     c->location = gtk_entry_new();
 225     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 226                      G_CALLBACK(key_location), c);
 227     g_signal_connect(G_OBJECT(c->location), "icon-release",
 228                      G_CALLBACK(icon_location), c);
 229     /* XXX This is a workaround. Setting this to NULL (which is done in
 230      * grab_feeds_finished() if no feed has been detected) adds a little
 231      * padding left of the text. Not sure why. The point of this call
 232      * right here is to have that padding right from the start. This
 233      * avoids a graphical artifact. */
 234     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 235                                       GTK_ENTRY_ICON_PRIMARY,
 236                                       NULL);
 237
 238     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 239     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 240     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 241
 242     c->tabicon = gtk_image_new_from_icon_name("text-html", GTK_ICON_SIZE_LARGE_TOOLBAR);
 243
 244     c->tablabel = gtk_label_new(__NAME__);
 245     gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 246     gtk_label_set_width_chars(GTK_LABEL(c->tablabel), tab_width_chars);
 247
 248     tabbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 249     gtk_box_pack_start(GTK_BOX(tabbox), c->tabicon, FALSE, FALSE, 0);
 250     gtk_box_pack_start(GTK_BOX(tabbox), c->tablabel, TRUE, TRUE, 0);
 251
 252     evbox = gtk_event_box_new();
 253     gtk_container_add(GTK_CONTAINER(evbox), tabbox);
 254     g_signal_connect(G_OBJECT(evbox), "button-release-event",
 255                      G_CALLBACK(button_tablabel), c);
 256
 257     /* This only shows the event box and the label inside, nothing else.
 258      * Needed because the evbox/label is "internal" to the notebook and
 259      * not part of the normal "widget tree" (IIUC). */
 260     gtk_widget_show_all(evbox);
 261
 262     gtk_notebook_append_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox);
 263     gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 264
 265     if (show)
 266         show_web_view(NULL, c);
 267     else
 268         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 269                          G_CALLBACK(show_web_view), c);
 270
 271     if (uri != NULL)
 272     {
 273         f = ensure_uri_scheme(uri);
 274         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 275         g_free(f);
 276     }
 277
 278     clients++;
 279
 280     return WEBKIT_WEB_VIEW(c->web_view);
 281 }
 282
 283 WebKitWebView *
 284 client_new_request(WebKitWebView *web_view,
 285                    WebKitNavigationAction *navigation_action, gpointer data)
 286 {
 287     return client_new(NULL, web_view, FALSE);
 288 }
 289
 290 void
 291 cooperation_setup(void)
 292 {
 293     GIOChannel *towatch;
 294     gchar *fifofilename, *fifopath;
 295
 296     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 297     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 298     g_free(fifofilename);
 299
 300     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 301         mkfifo(fifopath, 0600);
 302
 303     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 304     if (!cooperative_pipe_fp)
 305     {
 306         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 307     }
 308     else
 309     {
 310         if (write(cooperative_pipe_fp, "", 0) == -1)
 311         {
 312             /* Could not do an empty write to the FIFO which means there's
 313              * no one listening. */
 314             close(cooperative_pipe_fp);
 315             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 316             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 317         }
 318         else
 319             cooperative_alone = FALSE;
 320     }
 321
 322     g_free(fifopath);
 323 }
 324
 325 void
 326 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 327 {
 328     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 329     WebKitURIResponse *resp;
 330     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 331     gdouble p, size_mb;
 332     const gchar *uri;
 333     gchar *t, *filename, *base;
 334
 335     p = webkit_download_get_estimated_progress(download);
 336     p = p > 1 ? 1 : p;
 337     p = p < 0 ? 0 : p;
 338     p *= 100;
 339     resp = webkit_download_get_response(download);
 340     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 341
 342     uri = webkit_download_get_destination(download);
 343     filename = g_filename_from_uri(uri, NULL, NULL);
 344     if (filename == NULL)
 345     {
 346         /* This really should not happen because WebKit uses that URI to
 347          * write to a file... */
 348         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 349         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 350                             webkit_uri_response_get_uri(resp), p, size_mb);
 351     }
 352     else
 353     {
 354         base = g_path_get_basename(filename);
 355         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 356         g_free(filename);
 357         g_free(base);
 358     }
 359     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 360     g_free(t);
 361 }
 362
 363 void
 364 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 365 {
 366     struct Client *c = (struct Client *)data;
 367     gdouble p;
 368     gchar *grab_feeds =
 369         "a = document.querySelectorAll('"
 370         "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 371         "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 372         "');"
 373         "if (a.length == 0)"
 374         "    null;"
 375         "else"
 376         "{"
 377         "    out = '';"
 378         "    for (i = 0; i < a.length; i++)"
 379         "    {"
 380         "        url = encodeURIComponent(a[i].href);"
 381         "        if ('title' in a[i] && a[i].title != '')"
 382         "            title = encodeURIComponent(a[i].title);"
 383         "        else"
 384         "            title = url;"
 385         "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 386         "    }"
 387         "    out;"
 388         "}";
 389
 390     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 391     if (p == 1)
 392     {
 393         p = 0;
 394
 395         /* The page has loaded fully. We now run the short JavaScript
 396          * snippet above that operates on the DOM. It tries to grab all
 397          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 398          * references. */
 399         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 400                                        grab_feeds, NULL,
 401                                        grab_feeds_finished, c);
 402
 403         run_user_scripts(WEBKIT_WEB_VIEW(c->web_view));
 404     }
 405     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 406 }
 407
 408 void
 409 changed_favicon(GObject *obj, GParamSpec *pspec, gpointer data)
 410 {
 411     struct Client *c = (struct Client *)data;
 412     cairo_surface_t *f;
 413     int w, h, w_scaled, h_scaled;
 414     GdkPixbuf *pb, *pb_scaled;
 415
 416     f = webkit_web_view_get_favicon(WEBKIT_WEB_VIEW(c->web_view));
 417     if (f != NULL)
 418     {
 419         w = cairo_image_surface_get_width(f);
 420         h = cairo_image_surface_get_height(f);
 421         pb = gdk_pixbuf_get_from_surface(f, 0, 0, w, h);
 422         if (pb != NULL)
 423         {
 424             if (w > 16 || h > 16)
 425             {
 426                 w_scaled = 16 * gtk_widget_get_scale_factor(c->tabicon);
 427                 h_scaled = 16 * gtk_widget_get_scale_factor(c->tabicon);
 428                 pb_scaled = gdk_pixbuf_scale_simple(pb, w_scaled, h_scaled,
 429                                                     GDK_INTERP_BILINEAR);
 430                 gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb_scaled);
 431                 g_object_unref(pb_scaled);
 432             }
 433             else
 434                 gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb);
 435
 436             g_object_unref(pb);
 437         }
 438     }
 439 }
 440
 441 void
 442 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 443 {
 444     const gchar *t, *u;
 445     struct Client *c = (struct Client *)data;
 446
 447     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 448     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 449
 450     u = u == NULL ? __NAME__ : u;
 451     u = u[0] == 0 ? __NAME__ : u;
 452
 453     t = t == NULL ? u : t;
 454     t = t[0] == 0 ? u : t;
 455
 456     gtk_label_set_text(GTK_LABEL(c->tablabel), t);
 457     mainwindow_title(-1);
 458 }
 459
 460 void
 461 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 462 {
 463     const gchar *t;
 464     struct Client *c = (struct Client *)data;
 465     FILE *fp;
 466
 467     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 468
 469     /* When a web process crashes, we get a "notify::uri" signal, but we
 470      * can no longer read a meaningful URI. It's just an empty string
 471      * now. Not updating the location bar in this scenario is important,
 472      * because we would override the "WEB PROCESS CRASHED" message. */
 473     if (t != NULL && strlen(t) > 0)
 474     {
 475         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 476
 477         if (history_file != NULL)
 478         {
 479             fp = fopen(history_file, "a");
 480             if (fp != NULL)
 481             {
 482                 fprintf(fp, "%s\n", t);
 483                 fclose(fp);
 484             }
 485             else
 486                 perror(__NAME__": Error opening history file");
 487         }
 488     }
 489 }
 490
 491 gboolean
 492 crashed_web_view(WebKitWebView *web_view, gpointer data)
 493 {
 494     gchar *t;
 495     struct Client *c = (struct Client *)data;
 496
 497     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 498                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 499     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 500     g_free(t);
 501
 502     return TRUE;
 503 }
 504
 505 gboolean
 506 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 507               WebKitPolicyDecisionType type, gpointer data)
 508 {
 509     WebKitResponsePolicyDecision *r;
 510
 511     switch (type)
 512     {
 513         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 514             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 515             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 516                 webkit_policy_decision_download(decision);
 517             else
 518                 webkit_policy_decision_use(decision);
 519             break;
 520         default:
 521             /* Use whatever default there is. */
 522             return FALSE;
 523     }
 524     return TRUE;
 525 }
 526
 527 void
 528 download_handle_finished(WebKitDownload *download, gpointer data)
 529 {
 530     downloads--;
 531 }
 532
 533 void
 534 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 535                       gpointer data)
 536 {
 537     g_signal_connect(G_OBJECT(download), "decide-destination",
 538                      G_CALLBACK(download_handle), data);
 539 }
 540
 541 gboolean
 542 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 543 {
 544     gchar *sug_clean, *path, *path2 = NULL, *uri;
 545     GtkToolItem *tb;
 546     int suffix = 1;
 547     size_t i;
 548
 549     sug_clean = g_strdup(suggested_filename);
 550     for (i = 0; i < strlen(sug_clean); i++)
 551         if (sug_clean[i] == G_DIR_SEPARATOR)
 552             sug_clean[i] = '_';
 553
 554     path = g_build_filename(download_dir, sug_clean, NULL);
 555     path2 = g_strdup(path);
 556     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 557     {
 558         g_free(path2);
 559
 560         path2 = g_strdup_printf("%s.%d", path, suffix);
 561         suffix++;
 562     }
 563
 564     if (suffix == 1000)
 565     {
 566         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 567         webkit_download_cancel(download);
 568     }
 569     else
 570     {
 571         uri = g_filename_to_uri(path2, NULL, NULL);
 572         webkit_download_set_destination(download, uri);
 573         g_free(uri);
 574
 575         tb = gtk_tool_button_new(NULL, NULL);
 576         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 577         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 578         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 579         gtk_widget_show_all(dm.win);
 580
 581         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 582                          G_CALLBACK(changed_download_progress), tb);
 583
 584         downloads++;
 585         g_signal_connect(G_OBJECT(download), "finished",
 586                          G_CALLBACK(download_handle_finished), NULL);
 587
 588         g_object_ref(download);
 589         g_signal_connect(G_OBJECT(tb), "clicked",
 590                          G_CALLBACK(downloadmanager_cancel), download);
 591     }
 592
 593     g_free(sug_clean);
 594     g_free(path);
 595     g_free(path2);
 596
 597     /* Propagate -- to whom it may concern. */
 598     return FALSE;
 599 }
 600
 601 void
 602 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 603 {
 604     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 605
 606     webkit_download_cancel(download);
 607     g_object_unref(download);
 608
 609     gtk_widget_destroy(GTK_WIDGET(tb));
 610 }
 611
 612 gboolean
 613 downloadmanager_delete(GtkWidget *obj, gpointer data)
 614 {
 615     if (!quit_if_nothing_active())
 616         gtk_widget_hide(dm.win);
 617
 618     return TRUE;
 619 }
 620
 621 void
 622 downloadmanager_setup(void)
 623 {
 624     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 625     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 626     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 627     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 628     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 629                      G_CALLBACK(downloadmanager_delete), NULL);
 630     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 631                      G_CALLBACK(key_downloadmanager), NULL);
 632
 633     dm.toolbar = gtk_toolbar_new();
 634     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 635                                    GTK_ORIENTATION_VERTICAL);
 636     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 637     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 638
 639     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 640     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 641                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 642     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 643
 644     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 645 }
 646
 647 gchar *
 648 ensure_uri_scheme(const gchar *t)
 649 {
 650     gchar *f, *fabs;
 651
 652     f = g_ascii_strdown(t, -1);
 653     if (!g_str_has_prefix(f, "http:") &&
 654         !g_str_has_prefix(f, "https:") &&
 655         !g_str_has_prefix(f, "file:") &&
 656         !g_str_has_prefix(f, "about:") &&
 657         !g_str_has_prefix(f, "data:"))
 658     {
 659         g_free(f);
 660         fabs = realpath(t, NULL);
 661         if (fabs != NULL)
 662         {
 663             f = g_strdup_printf("file://%s", fabs);
 664             free(fabs);
 665         }
 666         else
 667             f = g_strdup_printf("http://%s", t);
 668         return f;
 669     }
 670     else
 671         return g_strdup(t);
 672 }
 673
 674 void
 675 external_handler_run(GSimpleAction *simple, GVariant *param, gpointer data)
 676 {
 677     struct Client *c = (struct Client *)data;
 678     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 679     GPid pid;
 680     GError *err = NULL;
 681
 682     (void)simple;
 683     (void)param;
 684
 685     argv[2] = c->external_handler_uri;
 686     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 687                        &pid, &err))
 688     {
 689         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 690                 err->message);
 691         g_error_free(err);
 692     }
 693     else
 694         g_spawn_close_pid(pid);
 695 }
 696
 697 void
 698 grab_environment_configuration(void)
 699 {
 700     const gchar *e;
 701
 702     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 703     if (e != NULL)
 704         accepted_language[0] = g_strdup(e);
 705
 706     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 707     if (e != NULL)
 708         download_dir = g_strdup(e);
 709
 710     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 711     if (e != NULL)
 712         enable_console_to_stdout = TRUE;
 713
 714     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 715     if (e != NULL)
 716         fifo_suffix = g_strdup(e);
 717
 718     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 719     if (e != NULL)
 720         history_file = g_strdup(e);
 721
 722     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 723     if (e != NULL)
 724         home_uri = g_strdup(e);
 725
 726     e = g_getenv(__NAME_UPPERCASE__"_TAB_POS");
 727     if (e != NULL)
 728     {
 729         if (strcmp(e, "top") == 0)
 730             tab_pos = GTK_POS_TOP;
 731         if (strcmp(e, "right") == 0)
 732             tab_pos = GTK_POS_RIGHT;
 733         if (strcmp(e, "bottom") == 0)
 734             tab_pos = GTK_POS_BOTTOM;
 735         if (strcmp(e, "left") == 0)
 736             tab_pos = GTK_POS_LEFT;
 737     }
 738
 739     e = g_getenv(__NAME_UPPERCASE__"_TAB_WIDTH_CHARS");
 740     if (e != NULL)
 741         tab_width_chars = atoi(e);
 742
 743     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 744     if (e != NULL)
 745         user_agent = g_strdup(e);
 746
 747     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 748     if (e != NULL)
 749         global_zoom = atof(e);
 750 }
 751
 752 void
 753 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 754 {
 755     struct Client *c = (struct Client *)data;
 756     WebKitJavascriptResult *js_result;
 757     JSCValue *value;
 758     JSCException *exception;
 759     GError *err = NULL;
 760     gchar *str_value;
 761
 762     g_free(c->feed_html);
 763     c->feed_html = NULL;
 764
 765     /* This was taken almost verbatim from the example in WebKit's
 766      * documentation:
 767      *
 768      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html#webkit-web-view-run-javascript-finish */
 769
 770     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 771                                                       result, &err);
 772     if (!js_result)
 773     {
 774         fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 775         g_error_free(err);
 776         return;
 777     }
 778
 779     value = webkit_javascript_result_get_js_value(js_result);
 780     if (jsc_value_is_string(value))
 781     {
 782         str_value = jsc_value_to_string(value);
 783         exception = jsc_context_get_exception(jsc_value_get_context(value));
 784         if (exception != NULL)
 785         {
 786             fprintf(stderr, __NAME__": Error running javascript: %s\n",
 787                     jsc_exception_get_message(exception));
 788         }
 789         else
 790             c->feed_html = str_value;
 791
 792         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 793                                           GTK_ENTRY_ICON_PRIMARY,
 794                                           "application-rss+xml-symbolic");
 795         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 796                                        GTK_ENTRY_ICON_PRIMARY,
 797                                        TRUE);
 798     }
 799     else
 800     {
 801         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 802                                           GTK_ENTRY_ICON_PRIMARY,
 803                                           NULL);
 804     }
 805
 806     webkit_javascript_result_unref(js_result);
 807 }
 808
 809 void
 810 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 811                gpointer data)
 812 {
 813     struct Client *c = (struct Client *)data;
 814
 815     if (!gtk_widget_is_focus(c->location))
 816     {
 817         if (webkit_hit_test_result_context_is_link(ht))
 818         {
 819             gtk_entry_set_text(GTK_ENTRY(c->location),
 820                                webkit_hit_test_result_get_link_uri(ht));
 821
 822             if (c->hover_uri != NULL)
 823                 g_free(c->hover_uri);
 824             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 825         }
 826         else
 827         {
 828             gtk_entry_set_text(GTK_ENTRY(c->location),
 829                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 830
 831             if (c->hover_uri != NULL)
 832                 g_free(c->hover_uri);
 833             c->hover_uri = NULL;
 834         }
 835     }
 836 }
 837
 838 void
 839 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 840               gpointer data)
 841 {
 842     struct Client *c = (struct Client *)data;
 843     gchar *d;
 844     gchar *data_template =
 845         "data:text/html,"
 846         "<!DOCTYPE html>"
 847         "<html>"
 848         "    <head>"
 849         "        <meta charset=\"UTF-8\">"
 850         "        <title>Feeds</title>"
 851         "    </head>"
 852         "    <body>"
 853         "        <p>Feeds found on this page:</p>"
 854         "        <ul>"
 855         "        %s"
 856         "        </ul>"
 857         "    </body>"
 858         "</html>";
 859
 860     if (c->feed_html != NULL)
 861     {
 862         /* What we're actually trying to do is show a simple HTML page
 863          * that lists all the feeds on the current page. The function
 864          * webkit_web_view_load_html() looks like the proper way to do
 865          * that. Sad thing is, it doesn't create a history entry, but
 866          * instead simply replaces the content of the current page. This
 867          * is not what we want.
 868          *
 869          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 870          * mechanism to show my custom HTML snippet *and* create a
 871          * history entry.
 872          *
 873          * [0]: https://tools.ietf.org/html/rfc2397
 874          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 875         d = g_strdup_printf(data_template, c->feed_html);
 876         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 877         g_free(d);
 878     }
 879 }
 880
 881 gboolean
 882 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 883 {
 884     struct Client *c = (struct Client *)data;
 885     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 886     gchar *f;
 887
 888     if (event->type == GDK_KEY_PRESS)
 889     {
 890         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 891         {
 892             switch (((GdkEventKey *)event)->keyval)
 893             {
 894                 case GDK_KEY_q:  /* close window (left hand) */
 895                     client_destroy(NULL, c);
 896                     return TRUE;
 897                 case GDK_KEY_w:  /* home (left hand) */
 898                     f = ensure_uri_scheme(home_uri);
 899                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 900                     g_free(f);
 901                     return TRUE;
 902                 case GDK_KEY_e:  /* new tab (left hand) */
 903                     f = ensure_uri_scheme(home_uri);
 904                     client_new(f, NULL, TRUE);
 905                     g_free(f);
 906                     return TRUE;
 907                 case GDK_KEY_r:  /* reload (left hand) */
 908                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 909                                                         c->web_view));
 910                     return TRUE;
 911                 case GDK_KEY_d:  /* download manager (left hand) */
 912                     gtk_widget_show_all(dm.win);
 913                     return TRUE;
 914                 case GDK_KEY_2:  /* search forward (left hand) */
 915                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 916                     search(c, 1);
 917                     return TRUE;
 918                 case GDK_KEY_3:  /* search backward (left hand) */
 919                     search(c, -1);
 920                     return TRUE;
 921                 case GDK_KEY_l:  /* location (BOTH hands) */
 922                     gtk_widget_grab_focus(c->location);
 923                     return TRUE;
 924                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 925                     gtk_widget_grab_focus(c->location);
 926                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 927                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 928                     return TRUE;
 929                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 930                     trust_user_certs(wc);
 931                     return TRUE;
 932                 case GDK_KEY_x:  /* launch external handler (left hand) */
 933                     if (c->external_handler_uri != NULL)
 934                         g_free(c->external_handler_uri);
 935                     c->external_handler_uri = g_strdup(
 936                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 937                     external_handler_run(NULL, NULL, c);
 938                     return TRUE;
 939                 case GDK_KEY_a:  /* go one tab to the left (left hand) */
 940                     gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 941                     return TRUE;
 942                 case GDK_KEY_s:  /* go one tab to the right (left hand) */
 943                     gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 944                     return TRUE;
 945             }
 946         }
 947         /* navigate backward (left hand) */
 948         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 949         {
 950             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 951             return TRUE;
 952         }
 953         /* navigate forward (left hand) */
 954         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 955         {
 956             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 957             return TRUE;
 958         }
 959     }
 960
 961     return FALSE;
 962 }
 963
 964 gboolean
 965 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 966 {
 967     if (event->type == GDK_KEY_PRESS)
 968     {
 969         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 970         {
 971             switch (((GdkEventKey *)event)->keyval)
 972             {
 973                 case GDK_KEY_d:  /* close window (left hand) */
 974                 case GDK_KEY_q:
 975                     downloadmanager_delete(dm.win, NULL);
 976                     return TRUE;
 977             }
 978         }
 979     }
 980
 981     return FALSE;
 982 }
 983
 984 gboolean
 985 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 986 {
 987     struct Client *c = (struct Client *)data;
 988     const gchar *t;
 989     gchar *f;
 990
 991     if (key_common(widget, event, data))
 992         return TRUE;
 993
 994     if (event->type == GDK_KEY_PRESS)
 995     {
 996         switch (((GdkEventKey *)event)->keyval)
 997         {
 998             case GDK_KEY_KP_Enter:
 999             case GDK_KEY_Return:
1000                 gtk_widget_grab_focus(c->web_view);
1001                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
1002                 if (t != NULL && t[0] == ':' && t[1] == '/')
1003                 {
1004                     if (search_text != NULL)
1005                         g_free(search_text);
1006                     search_text = g_strdup(t + 2);
1007                     search(c, 0);
1008                 }
1009                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
1010                 {
1011                     f = ensure_uri_scheme(t);
1012                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
1013                     g_free(f);
1014                 }
1015                 return TRUE;
1016             case GDK_KEY_Escape:
1017                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
1018                 gtk_entry_set_text(GTK_ENTRY(c->location),
1019                                    (t == NULL ? __NAME__ : t));
1020                 return TRUE;
1021         }
1022     }
1023
1024     return FALSE;
1025 }
1026
1027 gboolean
1028 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
1029 {
1030     struct Client *c = (struct Client *)data;
1031     gdouble dx, dy;
1032     gfloat z;
1033
1034     if (key_common(widget, event, data))
1035         return TRUE;
1036
1037     if (event->type == GDK_KEY_PRESS)
1038     {
1039         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
1040         {
1041             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
1042             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
1043         }
1044     }
1045     else if (event->type == GDK_BUTTON_RELEASE)
1046     {
1047         switch (((GdkEventButton *)event)->button)
1048         {
1049             case 2:
1050                 if (c->hover_uri != NULL)
1051                 {
1052                     client_new(c->hover_uri, NULL, TRUE);
1053                     return TRUE;
1054                 }
1055                 break;
1056             case 8:
1057                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
1058                 return TRUE;
1059             case 9:
1060                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
1061                 return TRUE;
1062         }
1063     }
1064     else if (event->type == GDK_SCROLL)
1065     {
1066         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
1067             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
1068         {
1069             gdk_event_get_scroll_deltas(event, &dx, &dy);
1070             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1071             z += -dy * 0.1;
1072             z = dx != 0 ? global_zoom : z;
1073             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1074             return TRUE;
1075         }
1076     }
1077
1078     return FALSE;
1079 }
1080
1081 void
1082 keywords_load(void)
1083 {
1084     GError *err = NULL;
1085     GIOChannel *channel = NULL;
1086     gchar *path = NULL, *buf = NULL;
1087     gchar **tokens = NULL;
1088
1089     keywords = g_hash_table_new(g_str_hash, g_str_equal);
1090
1091     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
1092                             NULL);
1093     channel = g_io_channel_new_file(path, "r", &err);
1094     if (channel != NULL)
1095     {
1096         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
1097                == G_IO_STATUS_NORMAL)
1098         {
1099             g_strstrip(buf);
1100             if (buf[0] != '#')
1101             {
1102                 tokens = g_strsplit(buf, " ", 2);
1103                 if (tokens[0] != NULL && tokens[1] != NULL)
1104                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
1105                                         g_strdup(tokens[1]));
1106                 g_strfreev(tokens);
1107             }
1108             g_free(buf);
1109         }
1110         g_io_channel_shutdown(channel, FALSE, NULL);
1111     }
1112     g_free(path);
1113 }
1114
1115 gboolean
1116 keywords_try_search(WebKitWebView *web_view, const gchar *t)
1117 {
1118     gboolean ret = FALSE;
1119     gchar **tokens = NULL;
1120     gchar *val = NULL, *escaped = NULL, *uri = NULL;
1121
1122     tokens = g_strsplit(t, " ", 2);
1123     if (tokens[0] != NULL && tokens[1] != NULL)
1124     {
1125         val = g_hash_table_lookup(keywords, tokens[0]);
1126         if (val != NULL)
1127         {
1128             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
1129             uri = g_strdup_printf((gchar *)val, escaped);
1130             webkit_web_view_load_uri(web_view, uri);
1131             g_free(uri);
1132             g_free(escaped);
1133             ret = TRUE;
1134         }
1135     }
1136     g_strfreev(tokens);
1137
1138     return ret;
1139 }
1140
1141 void
1142 mainwindow_setup(void)
1143 {
1144     mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1145     gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1146     g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1147     gtk_window_set_title(GTK_WINDOW(mw.win), __NAME__);
1148
1149     mw.notebook = gtk_notebook_new();
1150     gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1151     gtk_notebook_set_tab_pos(GTK_NOTEBOOK(mw.notebook), tab_pos);
1152     gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1153     g_signal_connect(G_OBJECT(mw.notebook), "switch-page",
1154                      G_CALLBACK(mainwindow_title_before), NULL);
1155 }
1156
1157 void
1158 mainwindow_title_before(GtkNotebook *nb, GtkWidget *p, guint idx, gpointer data)
1159 {
1160     mainwindow_title(idx);
1161 }
1162
1163 void
1164 mainwindow_title(gint idx)
1165 {
1166     GtkWidget *child, *tabbox, *evbox, *label;
1167     GList *tabbox_children, *last;
1168     const gchar *text;
1169
1170     if (idx == -1)
1171     {
1172         idx = gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook));
1173         if (idx == -1)
1174             return;
1175     }
1176
1177     child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(mw.notebook), idx);
1178     if (child == NULL)
1179         return;
1180
1181     evbox = gtk_notebook_get_tab_label(GTK_NOTEBOOK(mw.notebook), child);
1182     tabbox = gtk_bin_get_child(GTK_BIN(evbox));
1183     tabbox_children = gtk_container_get_children(GTK_CONTAINER(tabbox));
1184     last = g_list_last(tabbox_children);
1185     label = last->data;
1186     text = gtk_label_get_text(GTK_LABEL(label));
1187     gtk_window_set_title(GTK_WINDOW(mw.win), text);
1188     g_list_free(tabbox_children);
1189 }
1190
1191 gboolean
1192 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
1193               WebKitHitTestResult *ht, gpointer data)
1194 {
1195     struct Client *c = (struct Client *)data;
1196     GSimpleAction *action = NULL;
1197     WebKitContextMenuItem *mi = NULL;
1198     const gchar *uri = NULL;
1199
1200     (void)ev;
1201
1202     if (webkit_hit_test_result_context_is_link(ht))
1203         uri = webkit_hit_test_result_get_link_uri(ht);
1204     else if (webkit_hit_test_result_context_is_image(ht))
1205         uri = webkit_hit_test_result_get_image_uri(ht);
1206     else if (webkit_hit_test_result_context_is_media(ht))
1207         uri = webkit_hit_test_result_get_media_uri(ht);
1208
1209     if (uri != NULL)
1210     {
1211         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
1212
1213         if (c->external_handler_uri != NULL)
1214             g_free(c->external_handler_uri);
1215         c->external_handler_uri = g_strdup(uri);
1216         action = g_simple_action_new("external_handler", NULL);
1217         g_signal_connect(G_OBJECT(action), "activate",
1218                          G_CALLBACK(external_handler_run), data);
1219         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
1220                                                        "Open with external handler",
1221                                                        NULL);
1222         webkit_context_menu_append(menu, mi);
1223         g_object_unref(action);
1224     }
1225
1226     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
1227     return FALSE;
1228 }
1229
1230 gboolean
1231 quit_if_nothing_active(void)
1232 {
1233     if (clients == 0)
1234     {
1235         if (downloads == 0)
1236         {
1237             gtk_main_quit();
1238             return TRUE;
1239         }
1240         else
1241             gtk_widget_show_all(dm.win);
1242     }
1243
1244     return FALSE;
1245 }
1246
1247 gboolean
1248 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1249 {
1250     gchar *uri = NULL;
1251
1252     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1253     if (uri)
1254     {
1255         g_strstrip(uri);
1256         client_new(uri, NULL, TRUE);
1257         g_free(uri);
1258     }
1259     return TRUE;
1260 }
1261
1262 void
1263 run_user_scripts(WebKitWebView *web_view)
1264 {
1265     gchar *base = NULL, *path = NULL, *contents = NULL;
1266     const gchar *entry = NULL;
1267     GDir *scriptdir = NULL;
1268
1269     base = g_build_filename(g_get_user_config_dir(), __NAME__, "user-scripts", NULL);
1270     scriptdir = g_dir_open(base, 0, NULL);
1271     if (scriptdir != NULL)
1272     {
1273         while ((entry = g_dir_read_name(scriptdir)) != NULL)
1274         {
1275             path = g_build_filename(base, entry, NULL);
1276             if (g_str_has_suffix(path, ".js"))
1277             {
1278                 if (g_file_get_contents(path, &contents, NULL, NULL))
1279                 {
1280                     webkit_web_view_run_javascript(web_view, contents, NULL, NULL, NULL);
1281                     g_free(contents);
1282                 }
1283             }
1284             g_free(path);
1285         }
1286         g_dir_close(scriptdir);
1287     }
1288
1289     g_free(base);
1290 }
1291
1292 void
1293 search(gpointer data, gint direction)
1294 {
1295     struct Client *c = (struct Client *)data;
1296     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
1297     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
1298
1299     if (search_text == NULL)
1300         return;
1301
1302     switch (direction)
1303     {
1304         case 0:
1305             webkit_find_controller_search(fc, search_text,
1306                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
1307                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1308                                           G_MAXUINT);
1309             break;
1310         case 1:
1311             webkit_find_controller_search_next(fc);
1312             break;
1313         case -1:
1314             webkit_find_controller_search_previous(fc);
1315             break;
1316     }
1317 }
1318
1319 void
1320 show_web_view(WebKitWebView *web_view, gpointer data)
1321 {
1322     struct Client *c = (struct Client *)data;
1323     gint idx;
1324
1325     (void)web_view;
1326
1327     gtk_widget_show_all(mw.win);
1328
1329     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1330     if (idx != -1)
1331         gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1332
1333     gtk_widget_grab_focus(c->web_view);
1334 }
1335
1336 void
1337 trust_user_certs(WebKitWebContext *wc)
1338 {
1339     GTlsCertificate *cert;
1340     const gchar *basedir, *file, *absfile;
1341     GDir *dir;
1342
1343     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1344     dir = g_dir_open(basedir, 0, NULL);
1345     if (dir != NULL)
1346     {
1347         file = g_dir_read_name(dir);
1348         while (file != NULL)
1349         {
1350             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1351                                        file, NULL);
1352             cert = g_tls_certificate_new_from_file(absfile, NULL);
1353             if (cert == NULL)
1354                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1355             else
1356                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1357             file = g_dir_read_name(dir);
1358         }
1359         g_dir_close(dir);
1360     }
1361 }
1362
1363
1364 int
1365 main(int argc, char **argv)
1366 {
1367     gchar *c;
1368     int opt, i;
1369
1370     gtk_init(&argc, &argv);
1371     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1372         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1373
1374     grab_environment_configuration();
1375
1376     while ((opt = getopt(argc, argv, "C")) != -1)
1377     {
1378         switch (opt)
1379         {
1380             case 'C':
1381                 cooperative_instances = FALSE;
1382                 break;
1383             default:
1384                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1385                 exit(EXIT_FAILURE);
1386         }
1387     }
1388
1389     keywords_load();
1390     if (cooperative_instances)
1391         cooperation_setup();
1392     downloadmanager_setup();
1393
1394     mainwindow_setup();
1395
1396     if (!cooperative_instances || cooperative_alone)
1397     {
1398         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1399                              NULL);
1400         webkit_web_context_set_web_extensions_directory(
1401             webkit_web_context_get_default(), c
1402         );
1403     }
1404
1405     if (optind >= argc)
1406         client_new(home_uri, NULL, TRUE);
1407     else
1408     {
1409         for (i = optind; i < argc; i++)
1410             client_new(argv[i], NULL, TRUE);
1411     }
1412
1413     if (!cooperative_instances || cooperative_alone)
1414         gtk_main();
1415     exit(EXIT_SUCCESS);
1416 }