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