src/browser.c

   1 #include <fcntl.h>
   2 #include <sys/stat.h>
   3 #include <webkit2/webkit2.h>
   4
   5 #include "downloads.h"
   6
   7 void client_destroy(GtkWidget *, gpointer);
   8 WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean, gboolean);
   9 WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  10                                   gpointer);
  11 void cooperation_setup(void);
  12 void changed_load_progress(GObject *, GParamSpec *, gpointer);
  13 void changed_favicon(GObject *, GParamSpec *, gpointer);
  14 void changed_title(GObject *, GParamSpec *, gpointer);
  15 void changed_uri(GObject *, GParamSpec *, gpointer);
  16 gboolean crashed_web_view(WebKitWebView *, gpointer);
  17 gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  18                        WebKitPolicyDecisionType, gpointer);
  19 gchar *ensure_uri_scheme(const gchar *);
  20 void grab_environment_configuration(void);
  21 void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  22 void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  23 void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  24 void init_default_web_context(void);
  25 gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  26 gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  27 gboolean key_tablabel(GtkWidget *, GdkEvent *, gpointer);
  28 gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  29 void mainwindow_setup(void);
  30 void mainwindow_title(gint);
  31 void notebook_switch_page(GtkNotebook *, GtkWidget *, guint, gpointer);
  32 gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  33 void run_user_scripts(WebKitWebView *);
  34 void search(gpointer, gint);
  35 void show_web_view(WebKitWebView *, gpointer);
  36 void trust_user_certs(WebKitWebContext *);
  37 GKeyFile *get_ini(void);
  38 GKeyFile *config;
  39
  40 struct Client {
  41     GtkWidget *imgbutton;
  42     GtkWidget *jsbutton;
  43     GtkWidget *location;
  44     GtkWidget *tabicon;
  45     GtkWidget *tablabel;
  46     GtkWidget *vbox;
  47     GtkWidget *web_view;
  48     WebKitSettings *settings;
  49     gboolean focus_new_tab;
  50     gchar *external_handler_uri;
  51     gchar *feed_html;
  52     gchar *hover_uri;
  53 };
  54
  55 struct Configuration {
  56     WebKitCookieAcceptPolicy cookie_policy;
  57     const gchar *accepted_language[2];
  58     gboolean cooperative_alone;
  59     gboolean cooperative_instances;
  60     gboolean enable_console_to_stdout;
  61     gboolean images_disabled;
  62     gboolean javascript_disabled;
  63     gboolean private;
  64     gboolean spellcheck_disabled;
  65     gchar *default_uri;
  66     gchar *download_dir;
  67     gchar *fifo_suffix;
  68     gchar *history_file;
  69     gchar *home_uri;
  70     gchar *search_engine;
  71     gchar *spellcheck_language;
  72     gchar *user_agent;
  73     gdouble global_zoom;
  74     gint scroll_lines;
  75     gint tab_width_chars;
  76 } cfg;
  77
  78 struct MainWindow {
  79     GtkWidget *win;
  80     GtkWidget *notebook;
  81 } mw;
  82
  83 gint clients = 0;
  84 int cooperative_pipe_fp = 0;
  85 gchar *search_text;
  86
  87 void
  88 togglejs(GtkButton *jsbutton, gpointer data) {
  89     struct Client *c = (struct Client *)data;
  90     webkit_settings_set_enable_javascript(
  91         c->settings, !webkit_settings_get_enable_javascript(c->settings));
  92     webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), c->settings);
  93 }
  94
  95 void
  96 toggleimg(GtkButton *imgbutton, gpointer data) {
  97     struct Client *c = (struct Client *)data;
  98     webkit_settings_set_auto_load_images(
  99         c->settings, !webkit_settings_get_auto_load_images(c->settings));
 100     webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), c->settings);
 101 }
 102
 103 void
 104 client_destroy(GtkWidget *widget, gpointer data) {
 105     struct Client *c = (struct Client *)data;
 106     gint idx;
 107
 108     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 109                                          changed_load_progress, c);
 110
 111     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
 112     if (idx == -1)
 113         fprintf(stderr, __NAME__ ": Tab index was -1, bamboozled\n");
 114     else
 115         gtk_notebook_remove_page(GTK_NOTEBOOK(mw.notebook), idx);
 116
 117     free(c);
 118     clients--;
 119
 120     quit_if_nothing_active();
 121 }
 122
 123 void
 124 set_uri(const char *uri, struct Client *c) {
 125     if (!gtk_widget_is_focus(c->location)) {
 126         gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 127     }
 128 }
 129
 130 WebKitWebView *
 131 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show,
 132            gboolean focus_tab) {
 133     struct Client *c;
 134     gchar *f;
 135     GtkWidget *evbox, *tabbox;
 136
 137     if (uri != NULL && cfg.cooperative_instances && !cfg.cooperative_alone) {
 138         f = ensure_uri_scheme(uri);
 139         write(cooperative_pipe_fp, f, strlen(f));
 140         write(cooperative_pipe_fp, "\n", 1);
 141         g_free(f);
 142         return NULL;
 143     }
 144
 145     c = calloc(1, sizeof(struct Client));
 146     if (!c) {
 147         fprintf(stderr, __NAME__ ": fatal: calloc failed\n");
 148         exit(EXIT_FAILURE);
 149     }
 150
 151     c->focus_new_tab = focus_tab;
 152
 153     if (related_wv == NULL)
 154         c->web_view = webkit_web_view_new();
 155     else
 156         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 157
 158     c->settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view));
 159
 160     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 161                                    cfg.global_zoom);
 162     webkit_settings_set_enable_javascript(c->settings,
 163                                           !cfg.javascript_disabled);
 164     webkit_settings_set_auto_load_images(c->settings, !cfg.images_disabled);
 165     g_signal_connect(G_OBJECT(c->web_view), "notify::favicon",
 166                      G_CALLBACK(changed_favicon), c);
 167     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 168                      G_CALLBACK(changed_title), c);
 169     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 170                      G_CALLBACK(changed_uri), c);
 171     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 172                      G_CALLBACK(changed_load_progress), c);
 173     g_signal_connect(G_OBJECT(c->web_view), "create",
 174                      G_CALLBACK(client_new_request), NULL);
 175     g_signal_connect(G_OBJECT(c->web_view), "close", G_CALLBACK(client_destroy),
 176                      c);
 177     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 178                      G_CALLBACK(decide_policy), NULL);
 179     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 180                      G_CALLBACK(key_web_view), c);
 181     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 182                      G_CALLBACK(key_web_view), c);
 183     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 184                      G_CALLBACK(key_web_view), c);
 185     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 186                      G_CALLBACK(hover_web_view), c);
 187     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 188                      G_CALLBACK(crashed_web_view), c);
 189
 190     if (cfg.user_agent != NULL) {
 191         g_object_set(c->settings, "user-agent", cfg.user_agent, NULL);
 192     }
 193
 194     if (cfg.enable_console_to_stdout)
 195         webkit_settings_set_enable_write_console_messages_to_stdout(c->settings,
 196                                                                     TRUE);
 197
 198     webkit_settings_set_enable_developer_extras(c->settings, TRUE);
 199
 200     GtkWidget *locbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 201
 202     c->jsbutton = gtk_toggle_button_new_with_label("JS");
 203     gtk_widget_set_tooltip_text(c->jsbutton, "Toggle JavaScript execution");
 204     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->jsbutton),
 205                                  !cfg.javascript_disabled);
 206     g_signal_connect(G_OBJECT(c->jsbutton), "toggled", G_CALLBACK(togglejs), c);
 207
 208     c->imgbutton = gtk_toggle_button_new_with_label("IMG");
 209     gtk_widget_set_tooltip_text(c->imgbutton, "Toggle image loading");
 210     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->imgbutton),
 211                                  !cfg.images_disabled);
 212     g_signal_connect(G_OBJECT(c->imgbutton), "toggled", G_CALLBACK(toggleimg),
 213                      c);
 214
 215     c->location = gtk_entry_new();
 216     gtk_box_pack_start(GTK_BOX(locbox), c->location, TRUE, TRUE, 0);
 217
 218     if (cfg.private) {
 219         GtkWidget *privindicator = gtk_label_new("Private mode");
 220         gtk_widget_set_tooltip_text(
 221             privindicator, "You are in private mode. No history, caches, or "
 222                            "cookies will be saved beyond this session.");
 223         gtk_box_pack_end(GTK_BOX(locbox), privindicator, FALSE, FALSE, 5);
 224     }
 225
 226     gtk_box_pack_start(GTK_BOX(locbox), c->jsbutton, FALSE, FALSE, 5);
 227     gtk_box_pack_start(GTK_BOX(locbox), c->imgbutton, FALSE, FALSE, 0);
 228
 229     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 230                      G_CALLBACK(key_location), c);
 231     g_signal_connect(G_OBJECT(c->location), "icon-release",
 232                      G_CALLBACK(icon_location), c);
 233     /* XXX This is a workaround. Setting this to NULL (which is done in
 234      * grab_feeds_finished() if no feed has been detected) adds a little
 235      * padding left of the text. Not sure why. The point of this call
 236      * right here is to have that padding right from the start. This
 237      * avoids a graphical artifact. */
 238     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 239                                       GTK_ENTRY_ICON_SECONDARY, NULL);
 240
 241     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 242     gtk_box_pack_start(GTK_BOX(c->vbox), locbox, FALSE, FALSE, 0);
 243     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 244     gtk_container_set_focus_child(GTK_CONTAINER(c->vbox), c->web_view);
 245
 246     c->tabicon =
 247         gtk_image_new_from_icon_name("text-html", GTK_ICON_SIZE_SMALL_TOOLBAR);
 248
 249     c->tablabel = gtk_label_new(__NAME__);
 250     gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 251     gtk_label_set_width_chars(GTK_LABEL(c->tablabel), cfg.tab_width_chars);
 252     gtk_widget_set_has_tooltip(c->tablabel, TRUE);
 253
 254     /* XXX I don't own a HiDPI screen, so I don't know if scale_factor
 255      * does the right thing. */
 256     tabbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,
 257                          5 * gtk_widget_get_scale_factor(mw.win));
 258     gtk_box_pack_start(GTK_BOX(tabbox), c->tabicon, FALSE, FALSE, 0);
 259     gtk_box_pack_start(GTK_BOX(tabbox), c->tablabel, TRUE, TRUE, 0);
 260
 261     evbox = gtk_event_box_new();
 262     gtk_container_add(GTK_CONTAINER(evbox), tabbox);
 263     g_signal_connect(G_OBJECT(evbox), "button-release-event",
 264                      G_CALLBACK(key_tablabel), c);
 265
 266     gtk_widget_add_events(evbox, GDK_SCROLL_MASK);
 267     g_signal_connect(G_OBJECT(evbox), "scroll-event", G_CALLBACK(key_tablabel),
 268                      c);
 269
 270     // For easy access, store a reference to our label.
 271     g_object_set_data(G_OBJECT(evbox), "chorizo-tab-label", c->tablabel);
 272
 273     /* This only shows the event box and the label inside, nothing else.
 274      * Needed because the evbox/label is "internal" to the notebook and
 275      * not part of the normal "widget tree" (IIUC). */
 276     gtk_widget_show_all(evbox);
 277
 278     int page = gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)) + 1;
 279     gtk_notebook_insert_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox, page);
 280     gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 281
 282     if (show)
 283         show_web_view(NULL, c);
 284     else
 285         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 286                          G_CALLBACK(show_web_view), c);
 287
 288     if (uri != NULL) {
 289         f = ensure_uri_scheme(uri);
 290         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 291         g_free(f);
 292     }
 293
 294     set_uri(uri, c);
 295
 296     clients++;
 297     return WEBKIT_WEB_VIEW(c->web_view);
 298 }
 299
 300 WebKitWebView *
 301 client_new_request(WebKitWebView *web_view,
 302                    WebKitNavigationAction *navigation_action, gpointer data) {
 303     return client_new(NULL, web_view, FALSE, FALSE);
 304 }
 305
 306 void
 307 cooperation_setup(void) {
 308     GIOChannel *towatch;
 309     gchar *fifofilename, *fifopath;
 310
 311     gchar *priv = (cfg.private) ? "-private" : "";
 312     fifofilename =
 313         g_strdup_printf("%s%s%s-%s", __NAME__, priv, ".fifo", cfg.fifo_suffix);
 314     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 315     g_free(fifofilename);
 316
 317     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 318         mkfifo(fifopath, 0600);
 319
 320     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 321     if (!cooperative_pipe_fp) {
 322         fprintf(stderr, __NAME__ ": Can't open FIFO at all.\n");
 323     } else {
 324         if (write(cooperative_pipe_fp, "", 0) == -1) {
 325             /* Could not do an empty write to the FIFO which means there's
 326              * no one listening. */
 327             close(cooperative_pipe_fp);
 328             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 329             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 330         } else {
 331             cfg.cooperative_alone = FALSE;
 332         }
 333     }
 334
 335     g_free(fifopath);
 336 }
 337
 338 void
 339 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data) {
 340     struct Client *c = (struct Client *)data;
 341     gdouble p;
 342     gchar *grab_feeds =
 343         "a = document.querySelectorAll('"
 344         "    html > head > "
 345         "link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 346         "    html > head > "
 347         "link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 348         "');"
 349         "if (a.length == 0)"
 350         "    null;"
 351         "else {"
 352         "    out = '';"
 353         "    for (i = 0; i < a.length; i++) {"
 354         "        url = encodeURIComponent(a[i].href);"
 355         "        if ('title' in a[i] && a[i].title != '')"
 356         "            title = encodeURIComponent(a[i].title);"
 357         "        else"
 358         "            title = url;"
 359         "        out += '<li><a href=\"' + url + '\">' + title + "
 360         "'</a></li>';"
 361         "    }"
 362         "    out;"
 363         "}";
 364
 365     p = webkit_web_view_get_estimated_load_progress(
 366         WEBKIT_WEB_VIEW(c->web_view));
 367     if (p == 1) {
 368         p = 0;
 369
 370         /* The page has loaded fully. We now run the short JavaScript
 371          * snippet above that operates on the DOM. It tries to grab all
 372          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 373          * references. */
 374         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view), grab_feeds,
 375                                        NULL, grab_feeds_finished, c);
 376
 377         run_user_scripts(WEBKIT_WEB_VIEW(c->web_view));
 378     }
 379     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 380 }
 381
 382 void
 383 changed_favicon(GObject *obj, GParamSpec *pspec, gpointer data) {
 384     struct Client *c = (struct Client *)data;
 385     cairo_surface_t *f;
 386     int w, h, w_should, h_should;
 387     GdkPixbuf *pb, *pb_scaled;
 388
 389     f = webkit_web_view_get_favicon(WEBKIT_WEB_VIEW(c->web_view));
 390     if (f == NULL) {
 391         gtk_image_set_from_icon_name(GTK_IMAGE(c->tabicon), "text-html",
 392                                      GTK_ICON_SIZE_SMALL_TOOLBAR);
 393     } else {
 394         w = cairo_image_surface_get_width(f);
 395         h = cairo_image_surface_get_height(f);
 396         pb = gdk_pixbuf_get_from_surface(f, 0, 0, w, h);
 397         if (pb != NULL) {
 398             w_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 399             h_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 400             pb_scaled = gdk_pixbuf_scale_simple(pb, w_should, h_should,
 401                                                 GDK_INTERP_BILINEAR);
 402             gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb_scaled);
 403
 404             g_object_unref(pb_scaled);
 405             g_object_unref(pb);
 406         }
 407     }
 408 }
 409
 410 void
 411 changed_title(GObject *obj, GParamSpec *pspec, gpointer data) {
 412     const gchar *t, *u;
 413     struct Client *c = (struct Client *)data;
 414
 415     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 416     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 417
 418     u = u == NULL ? __NAME__ : u;
 419     u = u[0] == 0 ? __NAME__ : u;
 420
 421     t = t == NULL ? u : t;
 422     t = t[0] == 0 ? u : t;
 423
 424     gchar *name = malloc(strlen(t) + 4);
 425     gboolean mute = webkit_web_view_get_is_muted(WEBKIT_WEB_VIEW(c->web_view));
 426     gchar *muted = (mute) ? "[m] " : "";
 427     sprintf(name, "%s%s", muted, t);
 428
 429     gtk_label_set_text(GTK_LABEL(c->tablabel), name);
 430     g_free(name);
 431     gtk_widget_set_tooltip_text(c->tablabel, t);
 432     mainwindow_title(gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)));
 433 }
 434
 435 void
 436 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data) {
 437     const gchar *t;
 438     struct Client *c = (struct Client *)data;
 439     FILE *fp;
 440
 441     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 442
 443     /* When a web process crashes, we get a "notify::uri" signal, but we
 444      * can no longer read a meaningful URI. It's just an empty string
 445      * now. Not updating the location bar in this scenario is important,
 446      * because we would override the "WEB PROCESS CRASHED" message. */
 447     if (t != NULL && strlen(t) > 0) {
 448         set_uri(t, c);
 449
 450         if (cfg.history_file != NULL && !cfg.private) {
 451             fp = fopen(cfg.history_file, "a");
 452             if (fp != NULL) {
 453                 fprintf(fp, "%s\n", t);
 454                 fclose(fp);
 455             } else {
 456                 perror(__NAME__ ": Error opening history file");
 457             }
 458         }
 459     }
 460 }
 461
 462 gboolean
 463 crashed_web_view(WebKitWebView *web_view, gpointer data) {
 464     gchar *t;
 465     struct Client *c = (struct Client *)data;
 466
 467     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 468                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 469     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 470     g_free(t);
 471
 472     return TRUE;
 473 }
 474
 475 gboolean
 476 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 477               WebKitPolicyDecisionType type, gpointer data) {
 478     WebKitResponsePolicyDecision *r;
 479
 480     switch (type) {
 481     case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 482         r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 483         if (!webkit_response_policy_decision_is_mime_type_supported(r))
 484             webkit_policy_decision_download(decision);
 485         else
 486             webkit_policy_decision_use(decision);
 487         break;
 488     default:
 489         // Use whatever default there is.
 490         return FALSE;
 491     }
 492     return TRUE;
 493 }
 494
 495 gchar *
 496 ensure_uri_scheme(const gchar *t) {
 497     gchar *f, *fabs;
 498
 499     f = g_ascii_strdown(t, -1);
 500     if (!g_str_has_prefix(f, "http:") && !g_str_has_prefix(f, "https:") &&
 501         !g_str_has_prefix(f, "file:") && !g_str_has_prefix(f, "about:") &&
 502         !g_str_has_prefix(f, "data:") && !g_str_has_prefix(f, "webkit:")) {
 503         g_free(f);
 504         fabs = realpath(t, NULL);
 505         if (fabs != NULL) {
 506             f = g_strdup_printf("file://%s", fabs);
 507             free(fabs);
 508         } else {
 509             f = g_strdup_printf("http://%s", t);
 510         }
 511         return f;
 512     } else
 513         return g_strdup(t);
 514 }
 515
 516 void
 517 get_config(void) {
 518     cfg.accepted_language[0] = NULL;
 519     cfg.accepted_language[1] = NULL;
 520     cfg.cooperative_alone = TRUE;
 521     cfg.cooperative_instances = TRUE;
 522     cfg.fifo_suffix = "main";
 523
 524     const char *e = g_getenv(__NAME_UPPERCASE__ "_FIFO_SUFFIX");
 525     if (e != NULL)
 526         cfg.fifo_suffix = g_strdup(e);
 527
 528     char *xdg_down = getenv("XDG_DOWNLOAD_DIR");
 529     cfg.download_dir = (xdg_down) ? xdg_down : "/var/tmp";
 530
 531     config = get_ini();
 532     cfg.accepted_language[0] =
 533         g_key_file_get_string(config, "browser", "accepted_language", NULL);
 534     cfg.history_file =
 535         g_key_file_get_string(config, "browser", "history_file", NULL);
 536     cfg.home_uri = g_key_file_get_string(config, "browser", "homepage", NULL);
 537     cfg.home_uri = (cfg.home_uri) ? cfg.home_uri : "about:blank";
 538     cfg.enable_console_to_stdout =
 539         g_key_file_get_boolean(config, "browser", "console_to_stdout", NULL);
 540     cfg.user_agent =
 541         g_key_file_get_string(config, "browser", "user_agent", NULL);
 542     cfg.javascript_disabled =
 543         g_key_file_get_boolean(config, "browser", "javascript_disabled", NULL);
 544     cfg.images_disabled =
 545         g_key_file_get_boolean(config, "browser", "images_disabled", NULL);
 546     char *input_cookie_policy =
 547         g_key_file_get_string(config, "browser", "cookie_policy", NULL);
 548     cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY;
 549     if (input_cookie_policy) {
 550         if (strcmp(input_cookie_policy, "all") == 0) {
 551             cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS;
 552         } else if (strcmp(input_cookie_policy, "none") == 0) {
 553             cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_NEVER;
 554         }
 555     }
 556
 557     cfg.default_uri = g_key_file_get_string(config, "ui", "default_uri", NULL);
 558     cfg.default_uri = (cfg.default_uri) ? cfg.default_uri : "https://";
 559     cfg.tab_width_chars =
 560         g_key_file_get_integer(config, "ui", "tab_width", NULL);
 561     cfg.tab_width_chars = (cfg.tab_width_chars) ? cfg.tab_width_chars : 20;
 562     cfg.global_zoom = g_key_file_get_double(config, "ui", "zoom_level", NULL);
 563     cfg.global_zoom = (cfg.global_zoom) ? cfg.global_zoom : 1.0;
 564     cfg.search_engine =
 565         g_key_file_get_string(config, "ui", "search_engine", NULL);
 566     cfg.search_engine =
 567         (cfg.search_engine) ? cfg.search_engine : "https://duckduckgo.com?q=";
 568     cfg.spellcheck_disabled =
 569         g_key_file_get_boolean(config, "ui", "spellcheck_disabled", NULL);
 570     cfg.spellcheck_language =
 571         g_key_file_get_string(config, "ui", "spellcheck_language", NULL);
 572     cfg.spellcheck_language =
 573         (cfg.spellcheck_language) ? cfg.spellcheck_language : "en_US";
 574     cfg.scroll_lines =
 575         g_key_file_get_integer(config, "ui", "scroll_lines", NULL);
 576     cfg.scroll_lines = (cfg.scroll_lines) ? cfg.scroll_lines : 3;
 577 }
 578
 579 void
 580 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data) {
 581     struct Client *c = (struct Client *)data;
 582     WebKitJavascriptResult *js_result;
 583     JSCValue *value;
 584     JSCException *exception;
 585     GError *err = NULL;
 586     gchar *str_value;
 587
 588     g_free(c->feed_html);
 589     c->feed_html = NULL;
 590
 591     /* This was taken almost verbatim from the example in WebKit's
 592      * documentation:
 593      *
 594      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html
 595      */
 596
 597     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 598                                                       result, &err);
 599     if (!js_result) {
 600         fprintf(stderr, __NAME__ ": Error running javascript: %s\n",
 601                 err->message);
 602         g_error_free(err);
 603         return;
 604     }
 605
 606     value = webkit_javascript_result_get_js_value(js_result);
 607     if (jsc_value_is_string(value)) {
 608         str_value = jsc_value_to_string(value);
 609         exception = jsc_context_get_exception(jsc_value_get_context(value));
 610         if (exception != NULL) {
 611             fprintf(stderr, __NAME__ ": Error running javascript: %s\n",
 612                     jsc_exception_get_message(exception));
 613         } else {
 614             c->feed_html = str_value;
 615         }
 616
 617         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 618                                           GTK_ENTRY_ICON_SECONDARY,
 619                                           "application-rss+xml-symbolic");
 620         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 621                                        GTK_ENTRY_ICON_PRIMARY, TRUE);
 622     } else {
 623         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 624                                           GTK_ENTRY_ICON_SECONDARY, NULL);
 625     }
 626
 627     webkit_javascript_result_unref(js_result);
 628 }
 629
 630 void
 631 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht,
 632                guint modifiers, gpointer data) {
 633     struct Client *c = (struct Client *)data;
 634     const char *to_show;
 635
 636     g_free(c->hover_uri);
 637
 638     if (webkit_hit_test_result_context_is_link(ht)) {
 639         to_show = webkit_hit_test_result_get_link_uri(ht);
 640         c->hover_uri = g_strdup(to_show);
 641     } else {
 642         to_show = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 643         c->hover_uri = NULL;
 644     }
 645
 646     if (!gtk_widget_is_focus(c->location))
 647         set_uri(to_show, c);
 648 }
 649
 650 void
 651 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 652               gpointer data) {
 653     struct Client *c = (struct Client *)data;
 654     gchar *d;
 655     gchar *data_template = "data:text/html,"
 656                            "<!DOCTYPE html>"
 657                            "<html>"
 658                            "    <head>"
 659                            "        <meta charset=\"UTF-8\">"
 660                            "        <title>Feeds</title>"
 661                            "    </head>"
 662                            "    <body>"
 663                            "        <p>Feeds found on this page:</p>"
 664                            "        <ul>"
 665                            "        %s"
 666                            "        </ul>"
 667                            "    </body>"
 668                            "</html>";
 669
 670     if (c->feed_html != NULL) {
 671         /* What we're actually trying to do is show a simple HTML page
 672          * that lists all the feeds on the current page. The function
 673          * webkit_web_view_load_html() looks like the proper way to do
 674          * that. Sad thing is, it doesn't create a history entry, but
 675          * instead simply replaces the content of the current page. This
 676          * is not what we want.
 677          *
 678          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 679          * mechanism to show my custom HTML snippet *and* create a
 680          * history entry.
 681          *
 682          * [0]: https://tools.ietf.org/html/rfc2397
 683          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 684         d = g_strdup_printf(data_template, c->feed_html);
 685         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 686         g_free(d);
 687     }
 688 }
 689
 690 void
 691 init_default_web_context(void) {
 692     gchar *p;
 693     WebKitWebContext *wc;
 694     WebKitCookieManager *cm;
 695
 696     wc = (cfg.private) ? webkit_web_context_new_ephemeral()
 697                        : webkit_web_context_get_default();
 698
 699     p = g_build_filename(g_get_user_config_dir(), __NAME__, "adblock", NULL);
 700     webkit_web_context_set_sandbox_enabled(wc, TRUE);
 701     webkit_web_context_add_path_to_sandbox(wc, p, TRUE);
 702     g_free(p);
 703
 704     WebKitProcessModel model =
 705         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES;
 706     webkit_web_context_set_process_model(wc, model);
 707
 708     p = g_build_filename(g_get_user_data_dir(), __NAME__, "web_extensions",
 709                          NULL);
 710     webkit_web_context_set_web_extensions_directory(wc, p);
 711     g_free(p);
 712
 713     if (cfg.accepted_language[0] != NULL)
 714         webkit_web_context_set_preferred_languages(wc, cfg.accepted_language);
 715
 716     g_signal_connect(G_OBJECT(wc), "download-started",
 717                      G_CALLBACK(download_start), &cfg);
 718
 719     trust_user_certs(wc);
 720
 721     cm = webkit_web_context_get_cookie_manager(wc);
 722     webkit_cookie_manager_set_accept_policy(cm, cfg.cookie_policy);
 723
 724     if (!cfg.private) {
 725         webkit_web_context_set_favicon_database_directory(wc, NULL);
 726
 727         gchar *fname = g_build_filename("/", g_get_user_data_dir(), __NAME__,
 728                                         "cookies.db", NULL);
 729         WebKitCookiePersistentStorage type =
 730             WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE;
 731         webkit_cookie_manager_set_persistent_storage(cm, fname, type);
 732     }
 733
 734     const gchar *const languages[2] = {(const gchar *)cfg.spellcheck_language,
 735                                        NULL};
 736     webkit_web_context_set_spell_checking_languages(wc, languages);
 737     webkit_web_context_set_spell_checking_enabled(wc, !cfg.spellcheck_disabled);
 738 }
 739
 740 void
 741 search(gpointer data, gint direction) {
 742     struct Client *c = (struct Client *)data;
 743     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 744     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 745
 746     if (search_text == NULL)
 747         return;
 748
 749     switch (direction) {
 750     case 0:
 751         webkit_find_controller_search(fc, search_text,
 752                                       WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 753                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
 754                                       G_MAXUINT);
 755         break;
 756     case 1:
 757         webkit_find_controller_search_next(fc);
 758         break;
 759     case -1:
 760         webkit_find_controller_search_previous(fc);
 761         break;
 762     case 2:
 763         webkit_find_controller_search_finish(fc);
 764         break;
 765     }
 766 }
 767
 768 void
 769 search_init(struct Client *c, int direction) {
 770     gtk_widget_grab_focus(c->location);
 771     const gchar *contents = gtk_entry_get_text(GTK_ENTRY(c->location));
 772     if (strcspn(contents, "s/")) {
 773         gtk_entry_set_text(GTK_ENTRY(c->location), "s/");
 774     }
 775     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 776     search(c, 0);
 777     search(c, -1);
 778     search(c, direction);
 779 }
 780
 781 int
 782 def_key(char *key, unsigned int def) {
 783     char *conf = g_key_file_get_string(config, "keybindings", key, NULL);
 784     return (conf) ? gdk_keyval_from_name((conf) ? conf : NULL) : def;
 785 }
 786
 787 gboolean
 788 key_common(GtkWidget *widget, GdkEvent *event, gpointer data) {
 789     struct Client *c = (struct Client *)data;
 790     gdouble now;
 791     gchar *f;
 792
 793     if (event->type == GDK_KEY_PRESS) {
 794         if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK) {
 795             const char *uri =
 796                 webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 797             int key = ((GdkEventKey *)event)->keyval;
 798             if (def_key("download_manager", GDK_KEY_y) == key) {
 799                 downloadmanager_show();
 800                 return TRUE;
 801             } else if (def_key("history_back", GDK_KEY_h) == key) {
 802                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 803                 return TRUE;
 804             } else if (def_key("history_forwards", GDK_KEY_l) == key) {
 805                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 806                 return TRUE;
 807             } else if (def_key("location", GDK_KEY_t) == key) {
 808                 gtk_widget_grab_focus(c->location);
 809                 const char *goal = (strcmp(cfg.home_uri, uri) == 0 || !uri)
 810                                        ? cfg.default_uri
 811                                        : uri;
 812                 gtk_entry_set_text(GTK_ENTRY(c->location), goal);
 813                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 814                 return TRUE;
 815             } else if (def_key("print", GDK_KEY_Print) == key) {
 816                 WebKitPrintOperation *operation =
 817                     webkit_print_operation_new(WEBKIT_WEB_VIEW(c->web_view));
 818                 GtkWidget *toplevel = gtk_widget_get_toplevel(mw.win);
 819                 webkit_print_operation_run_dialog(operation,
 820                                                   GTK_WINDOW(toplevel));
 821                 return TRUE;
 822             } else if (def_key("quit", GDK_KEY_g) == key) {
 823                 search(c, 2);
 824                 gtk_widget_grab_focus(c->web_view);
 825                 gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 826                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 827                 webkit_web_view_run_javascript(
 828                     WEBKIT_WEB_VIEW(c->web_view),
 829                     "window.getSelection().removeAllRanges();"
 830                     "document.activeElement.blur();",
 831                     NULL, NULL, c);
 832                 return TRUE;
 833             } else if (def_key("reload", GDK_KEY_e) == key) {
 834                 webkit_web_view_reload_bypass_cache(
 835                     WEBKIT_WEB_VIEW(c->web_view));
 836                 return TRUE;
 837             } else if (def_key("scroll_line_down", GDK_KEY_j) == key) {
 838                 for (int i = 0; i <= cfg.scroll_lines - 1; i++) {
 839                     event->key.keyval = GDK_KEY_Down;
 840                     gdk_event_put(event);
 841                 }
 842                 return TRUE;
 843             } else if (def_key("scroll_line_up", GDK_KEY_k) == key) {
 844                 for (int i = 0; i <= cfg.scroll_lines - 1; i++) {
 845                     event->key.keyval = GDK_KEY_Up;
 846                     gdk_event_put(event);
 847                 }
 848                 return TRUE;
 849             } else if (def_key("scroll_page_down", GDK_KEY_f) == key) {
 850                 event->key.keyval = GDK_KEY_Page_Down;
 851                 gdk_event_put(event);
 852                 return TRUE;
 853             } else if (def_key("scroll_page_up", GDK_KEY_b) == key) {
 854                 event->key.keyval = GDK_KEY_Page_Up;
 855                 gdk_event_put(event);
 856                 return TRUE;
 857             } else if (def_key("search_forwards", GDK_KEY_s) == key) {
 858                 search_init(c, 1);
 859                 return TRUE;
 860             } else if (def_key("search_backwards", GDK_KEY_r) == key) {
 861                 search_init(c, -1);
 862                 return TRUE;
 863             } else if (def_key("tab_close", GDK_KEY_q) == key) {
 864                 client_destroy(NULL, c);
 865                 return TRUE;
 866             } else if (def_key("tab_switch_1", GDK_KEY_1) == key) {
 867                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 0);
 868                 return TRUE;
 869             } else if (def_key("tab_switch_2", GDK_KEY_2) == key) {
 870                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 1);
 871                 return TRUE;
 872             } else if (def_key("tab_switch_3", GDK_KEY_3) == key) {
 873                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 2);
 874                 return TRUE;
 875             } else if (def_key("tab_switch_4", GDK_KEY_4) == key) {
 876                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 3);
 877                 return TRUE;
 878             } else if (def_key("tab_switch_5", GDK_KEY_5) == key) {
 879                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 4);
 880                 return TRUE;
 881             } else if (def_key("tab_switch_6", GDK_KEY_6) == key) {
 882                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 5);
 883                 return TRUE;
 884             } else if (def_key("tab_switch_7", GDK_KEY_7) == key) {
 885                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 6);
 886                 return TRUE;
 887             } else if (def_key("tab_switch_8", GDK_KEY_8) == key) {
 888                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 7);
 889                 return TRUE;
 890             } else if (def_key("tab_switch_9", GDK_KEY_9) == key) {
 891                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 8);
 892                 return TRUE;
 893             } else if (def_key("tab_previous", GDK_KEY_u) == key) {
 894                 gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 895                 return TRUE;
 896             } else if (def_key("tab_mute", GDK_KEY_m) == key) {
 897                 gboolean muted =
 898                     webkit_web_view_get_is_muted(WEBKIT_WEB_VIEW(c->web_view));
 899                 webkit_web_view_set_is_muted(WEBKIT_WEB_VIEW(c->web_view),
 900                                              !muted);
 901                 changed_title(G_OBJECT(c->web_view), NULL, c);
 902                 return TRUE;
 903             } else if (def_key("tab_new", GDK_KEY_w) == key) {
 904                 f = ensure_uri_scheme(cfg.home_uri);
 905                 client_new(f, NULL, TRUE, TRUE);
 906                 g_free(f);
 907                 return TRUE;
 908             } else if (def_key("tab_next", GDK_KEY_i) == key) {
 909                 gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 910                 return TRUE;
 911             } else if (def_key("toggle_js", GDK_KEY_o) == key) {
 912                 gboolean on =
 913                     webkit_settings_get_enable_javascript(c->settings);
 914                 webkit_settings_set_enable_javascript(c->settings, !on);
 915                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view),
 916                                              c->settings);
 917                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->jsbutton),
 918                                              !on);
 919             } else if (def_key("toggle_img", -1) == key) {
 920                 gboolean on = webkit_settings_get_auto_load_images(c->settings);
 921                 webkit_settings_set_auto_load_images(c->settings, !on);
 922                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view),
 923                                              c->settings);
 924                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->imgbutton),
 925                                              !on);
 926             } else if (def_key("web_search", GDK_KEY_d) == key) {
 927                 gtk_widget_grab_focus(c->location);
 928                 gtk_entry_set_text(GTK_ENTRY(c->location), "w/");
 929                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 930                 return TRUE;
 931             } else if (def_key("zoom_in", GDK_KEY_equal) == key) {
 932                 now = webkit_web_view_get_zoom_level(
 933                     WEBKIT_WEB_VIEW(c->web_view));
 934                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 935                                                now + 0.1);
 936                 return TRUE;
 937             } else if (def_key("zoom_out", GDK_KEY_minus) == key) {
 938                 now = webkit_web_view_get_zoom_level(
 939                     WEBKIT_WEB_VIEW(c->web_view));
 940                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 941                                                now - 0.1);
 942                 return TRUE;
 943             } else if (def_key("zoom_reset", GDK_KEY_0) == key) {
 944                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 945                                                cfg.global_zoom);
 946                 return TRUE;
 947             }
 948         }
 949     }
 950     return FALSE;
 951 }
 952
 953 gboolean
 954 key_location(GtkWidget *widget, GdkEvent *event, gpointer data) {
 955     struct Client *c = (struct Client *)data;
 956     const gchar *t;
 957     gchar *f;
 958
 959     if (key_common(widget, event, data))
 960         return TRUE;
 961
 962     if (event->type == GDK_KEY_PRESS) {
 963         int key = ((GdkEventKey *)event)->keyval;
 964         if ((GDK_KEY_KP_Enter == key) || (GDK_KEY_Return == key)) {
 965             gtk_widget_grab_focus(c->web_view);
 966             t = gtk_entry_get_text(GTK_ENTRY(c->location));
 967             if (t != NULL && t[0] == 's' && t[1] == '/') {
 968                 if (search_text != NULL)
 969                     g_free(search_text);
 970                 search_text = g_strdup(t + 2);
 971                 search(c, 0);
 972             } else if (t != NULL && t[0] == 'w' && t[1] == '/') {
 973                 int len = strlen(cfg.search_engine) + strlen(t) - 2;
 974                 gchar *f = malloc(len + 1);
 975                 snprintf(f, len + 1, "%s%s", cfg.search_engine, t + 2);
 976                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 977                 g_free(f);
 978             } else {
 979                 f = ensure_uri_scheme(t);
 980                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 981                 g_free(f);
 982             }
 983             return TRUE;
 984         } else if (GDK_KEY_Escape == key) {
 985             t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 986             gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL) ? "" : t);
 987             return TRUE;
 988         }
 989     }
 990     return FALSE;
 991 }
 992
 993 gboolean
 994 key_tablabel(GtkWidget *widget, GdkEvent *event, gpointer data) {
 995     GdkScrollDirection direction;
 996
 997     if (event->type == GDK_BUTTON_RELEASE) {
 998         switch (((GdkEventButton *)event)->button) {
 999         case 2:
1000             client_destroy(NULL, data);
1001             return TRUE;
1002         }
1003     } else if (event->type == GDK_SCROLL) {
1004         gdk_event_get_scroll_direction(event, &direction);
1005         switch (direction) {
1006         case GDK_SCROLL_UP:
1007             gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
1008             break;
1009         case GDK_SCROLL_DOWN:
1010             gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
1011             break;
1012         default:
1013             break;
1014         }
1015         return TRUE;
1016     }
1017     return FALSE;
1018 }
1019
1020 gboolean
1021 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data) {
1022     struct Client *c = (struct Client *)data;
1023     gdouble dx, dy;
1024     gfloat z;
1025
1026     if (key_common(widget, event, data))
1027         return TRUE;
1028
1029     if (event->type == GDK_KEY_PRESS) {
1030         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape) {
1031             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
1032             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
1033         }
1034     } else if (event->type == GDK_BUTTON_RELEASE) {
1035         switch (((GdkEventButton *)event)->button) {
1036         case 2:
1037             if (c->hover_uri != NULL) {
1038                 client_new(c->hover_uri, NULL, TRUE, FALSE);
1039                 return TRUE;
1040             }
1041             break;
1042         case 8:
1043             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
1044             return TRUE;
1045         case 9:
1046             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
1047             return TRUE;
1048         }
1049     } else if (event->type == GDK_SCROLL) {
1050         event->scroll.delta_y *= cfg.scroll_lines;
1051         if (((GdkEventScroll *)event)->state & GDK_CONTROL_MASK) {
1052             gdk_event_get_scroll_deltas(event, &dx, &dy);
1053             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1054             z += -dy * 0.1;
1055             z = dx != 0 ? cfg.global_zoom : z;
1056             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1057             return TRUE;
1058         }
1059     }
1060
1061     return FALSE;
1062 }
1063
1064 void
1065 mainwindow_setup(void) {
1066     mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1067     gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1068     g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1069
1070     gchar *priv = (cfg.private) ? "-private" : "";
1071     gchar *title = malloc(strlen(priv) + strlen(__NAME__) + 1);
1072     sprintf(title, "%s%s", __NAME__, priv);
1073     gtk_window_set_title(GTK_WINDOW(mw.win), title);
1074
1075     mw.notebook = gtk_notebook_new();
1076     gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1077     gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1078     g_signal_connect(G_OBJECT(mw.notebook), "switch-page",
1079                      G_CALLBACK(notebook_switch_page), NULL);
1080 }
1081
1082 void
1083 mainwindow_title(gint idx) {
1084     GtkWidget *child, *widg, *tablabel;
1085     const gchar *text;
1086
1087     child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(mw.notebook), idx);
1088     if (child == NULL)
1089         return;
1090
1091     widg = gtk_notebook_get_tab_label(GTK_NOTEBOOK(mw.notebook), child);
1092     tablabel =
1093         (GtkWidget *)g_object_get_data(G_OBJECT(widg), "chorizo-tab-label");
1094     text = gtk_label_get_text(GTK_LABEL(tablabel));
1095     gtk_window_set_title(GTK_WINDOW(mw.win), text);
1096 }
1097
1098 void
1099 notebook_switch_page(GtkNotebook *nb, GtkWidget *p, guint idx, gpointer data) {
1100     mainwindow_title(idx);
1101 }
1102
1103 gboolean
1104 quit_if_nothing_active(void) {
1105     if (clients == 0) {
1106         if (downloads == 0) {
1107             gtk_main_quit();
1108             return TRUE;
1109         } else {
1110             downloadmanager_show();
1111         }
1112     }
1113
1114     return FALSE;
1115 }
1116
1117 gboolean
1118 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data) {
1119     gchar *uri = NULL;
1120
1121     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1122     if (uri) {
1123         g_strstrip(uri);
1124         client_new(uri, NULL, TRUE, TRUE);
1125         g_free(uri);
1126     }
1127     return TRUE;
1128 }
1129
1130 void
1131 run_user_scripts(WebKitWebView *web_view) {
1132     gchar *base = NULL, *path = NULL, *contents = NULL;
1133     const gchar *entry = NULL;
1134     GDir *scriptdir = NULL;
1135
1136     base =
1137         g_build_filename(g_get_user_data_dir(), __NAME__, "user-scripts", NULL);
1138     scriptdir = g_dir_open(base, 0, NULL);
1139     if (scriptdir != NULL) {
1140         while ((entry = g_dir_read_name(scriptdir)) != NULL) {
1141             path = g_build_filename(base, entry, NULL);
1142             char *jscmd = malloc(strlen(path) + 36);
1143             sprintf(jscmd, "console.log(\"Running userscript %s\");", path);
1144             if (g_str_has_suffix(path, ".js")) {
1145                 if (g_file_get_contents(path, &contents, NULL, NULL)) {
1146                     webkit_web_view_run_javascript(web_view, jscmd, NULL, NULL,
1147                                                    NULL);
1148                     webkit_web_view_run_javascript(web_view, contents, NULL,
1149                                                    NULL, NULL);
1150                     g_free(contents);
1151                     g_free(jscmd);
1152                 }
1153             }
1154             g_free(path);
1155         }
1156         g_dir_close(scriptdir);
1157     }
1158
1159     g_free(base);
1160 }
1161
1162 void
1163 show_web_view(WebKitWebView *web_view, gpointer data) {
1164     struct Client *c = (struct Client *)data;
1165     gint idx;
1166
1167     (void)web_view;
1168
1169     gtk_widget_show_all(mw.win);
1170
1171     if (c->focus_new_tab) {
1172         idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1173         if (idx != -1)
1174             gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1175
1176         gtk_widget_grab_focus(c->web_view);
1177     }
1178 }
1179
1180 void
1181 trust_user_certs(WebKitWebContext *wc) {
1182     GTlsCertificate *cert;
1183     const gchar *basedir, *file, *absfile;
1184     GDir *dir;
1185
1186     basedir = g_build_filename(g_get_user_data_dir(), __NAME__, "certs", NULL);
1187     dir = g_dir_open(basedir, 0, NULL);
1188     if (dir != NULL) {
1189         file = g_dir_read_name(dir);
1190         while (file != NULL) {
1191             absfile = g_build_filename(g_get_user_data_dir(), __NAME__, "certs",
1192                                        file, NULL);
1193             cert = g_tls_certificate_new_from_file(absfile, NULL);
1194             if (cert == NULL)
1195                 fprintf(stderr, __NAME__ ": Could not load trusted cert '%s'\n",
1196                         file);
1197             else
1198                 webkit_web_context_allow_tls_certificate_for_host(wc, cert,
1199                                                                   file);
1200             file = g_dir_read_name(dir);
1201         }
1202         g_dir_close(dir);
1203     }
1204 }
1205
1206 GKeyFile *
1207 get_ini(void) {
1208     GKeyFileFlags flags = G_KEY_FILE_NONE;
1209     config = g_key_file_new();
1210
1211     // Load user config
1212     if (!g_key_file_load_from_file(config,
1213                                    g_build_filename(g_get_user_config_dir(),
1214                                                     __NAME__, "chorizo.ini",
1215                                                     NULL),
1216                                    flags, NULL)) {
1217         // Load global config
1218         if (!g_key_file_load_from_file(config, "/etc/chorizo.ini", flags,
1219                                        NULL)) {
1220             fprintf(stderr, "Could not load chorizo.ini");
1221         }
1222     }
1223     return config;
1224 }
1225
1226 int
1227 main(int argc, char **argv) {
1228     int opt, i;
1229
1230     while ((opt = getopt(argc, argv, "Cpv")) != -1) {
1231         switch (opt) {
1232         case 'C':
1233             cfg.cooperative_instances = FALSE;
1234             break;
1235         case 'p':
1236             cfg.private = true;
1237             break;
1238         case 'v':
1239             printf("%s %s\n", __NAME__, VERSION);
1240             exit(0);
1241         default:
1242             fprintf(stderr, "Usage: " __NAME__ " [OPTION]... [URI]...\n");
1243             exit(EXIT_FAILURE);
1244         }
1245     }
1246
1247     gtk_init(&argc, &argv);
1248     get_config();
1249
1250     if (cfg.cooperative_instances)
1251         cooperation_setup();
1252
1253     if (!cfg.cooperative_instances || cfg.cooperative_alone)
1254         init_default_web_context();
1255
1256     downloadmanager_setup();
1257     mainwindow_setup();
1258
1259     if (optind >= argc) {
1260         client_new(cfg.home_uri, NULL, TRUE, TRUE);
1261     } else {
1262         for (i = optind; i < argc; i++)
1263             client_new(argv[i], NULL, TRUE, TRUE);
1264     }
1265
1266     if (!cfg.cooperative_instances || cfg.cooperative_alone)
1267         gtk_main();
1268
1269     exit(EXIT_SUCCESS);
1270 }