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     gdouble zoom_level;
  57     WebKitCookieAcceptPolicy cookie_policy;
  58     gboolean cooperative_alone;
  59     gboolean cooperative_instances;
  60     gboolean images_enabled;
  61     gboolean javascript_enabled;
  62     gboolean private;
  63     gboolean spellcheck_enabled;
  64     gchar *default_uri;
  65     gchar *home_uri;
  66     gchar *search_engine;
  67     gchar *spellcheck_language;
  68     gint scroll_lines;
  69     gint tab_width_chars;
  70 } cfg;
  71
  72 struct MainWindow {
  73     GtkWidget *win;
  74     GtkWidget *notebook;
  75 } mw;
  76
  77 gint clients = 0;
  78 struct Client **client_arr;
  79
  80 int cooperative_pipe_fp = 0;
  81 gchar *search_text;
  82
  83 void
  84 togglejs(GtkButton *jsbutton, gpointer data) {
  85     struct Client *c = (struct Client *)data;
  86     webkit_settings_set_enable_javascript(
  87         c->settings, !webkit_settings_get_enable_javascript(c->settings));
  88     webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), c->settings);
  89 }
  90
  91 void
  92 toggleimg(GtkButton *imgbutton, gpointer data) {
  93     struct Client *c = (struct Client *)data;
  94     webkit_settings_set_auto_load_images(
  95         c->settings, !webkit_settings_get_auto_load_images(c->settings));
  96     webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), c->settings);
  97 }
  98
  99 void
 100 client_destroy(GtkWidget *widget, gpointer data) {
 101     struct Client *c = (struct Client *)data;
 102     gint idx;
 103
 104     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 105                                          changed_load_progress, c);
 106
 107     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
 108     if (idx == -1)
 109         fprintf(stderr, __NAME__ ": Tab index was -1, bamboozled\n");
 110     else
 111         gtk_notebook_remove_page(GTK_NOTEBOOK(mw.notebook), idx);
 112
 113     free(c);
 114     clients--;
 115
 116     quit_if_nothing_active();
 117 }
 118
 119 void
 120 set_uri(const char *uri, struct Client *c) {
 121     if (!gtk_widget_is_focus(c->location) && uri != NULL)
 122         gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 123 }
 124
 125 WebKitWebView *
 126 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show,
 127            gboolean focus_tab) {
 128     struct Client *c;
 129     gchar *f;
 130     GtkWidget *evbox, *tabbox;
 131
 132     if (uri != NULL && cfg.cooperative_instances && !cfg.cooperative_alone) {
 133         f = ensure_uri_scheme(uri);
 134         write(cooperative_pipe_fp, f, strlen(f));
 135         write(cooperative_pipe_fp, "\n", 1);
 136         g_free(f);
 137         return NULL;
 138     }
 139
 140     c = calloc(1, sizeof(struct Client));
 141     if (!c) {
 142         fprintf(stderr, __NAME__ ": fatal: calloc failed\n");
 143         exit(EXIT_FAILURE);
 144     }
 145
 146     c->focus_new_tab = focus_tab;
 147
 148     if (related_wv == NULL) {
 149         WebKitUserContentManager *ucm = webkit_user_content_manager_new();
 150         WebKitUserScript *wkscript;
 151         WebKitUserStyleSheet *wkstyle;
 152         gchar *path = NULL, *source, *base;
 153         const gchar *entry = NULL;
 154         GDir *dir = NULL;
 155
 156         base = g_build_filename(g_get_user_data_dir(), __NAME__, "user-scripts",
 157                                 NULL);
 158         dir = g_dir_open(base, 0, NULL);
 159         if (dir != NULL) {
 160             while ((entry = g_dir_read_name(dir)) != NULL) {
 161                 path = g_build_filename(base, entry, NULL);
 162                 if (g_str_has_suffix(path, ".js")) {
 163                     g_file_get_contents(path, &source, NULL, NULL);
 164                     wkscript = webkit_user_script_new(
 165                         source, WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES,
 166                         WEBKIT_USER_SCRIPT_INJECT_AT_DOCUMENT_START, NULL,
 167                         NULL);
 168                     webkit_user_content_manager_add_script(ucm, wkscript);
 169                     webkit_user_script_unref(wkscript);
 170                 }
 171                 g_free(path);
 172                 g_free(source);
 173             }
 174             g_dir_close(dir);
 175         }
 176
 177         base = g_build_filename(g_get_user_data_dir(), __NAME__, "user-styles",
 178                                 NULL);
 179         dir = g_dir_open(base, 0, NULL);
 180         if (dir != NULL) {
 181             while ((entry = g_dir_read_name(dir)) != NULL) {
 182                 path = g_build_filename(base, entry, NULL);
 183                 if (g_str_has_suffix(path, ".css")) {
 184                     g_file_get_contents(path, &source, NULL, NULL);
 185                     wkstyle = webkit_user_style_sheet_new(
 186                         source, WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES,
 187                         WEBKIT_USER_STYLE_LEVEL_USER, NULL, NULL);
 188                     webkit_user_content_manager_add_style_sheet(ucm, wkstyle);
 189                     webkit_user_style_sheet_unref(wkstyle);
 190                 }
 191                 g_free(path);
 192                 g_free(source);
 193             }
 194             g_dir_close(dir);
 195         }
 196
 197         g_free(base);
 198
 199         c->web_view = webkit_web_view_new_with_user_content_manager(ucm);
 200     } else {
 201         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 202     }
 203
 204     // Get settings
 205     c->settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view));
 206     webkit_settings_set_enable_javascript(c->settings, cfg.javascript_enabled);
 207     webkit_settings_set_auto_load_images(c->settings, cfg.images_enabled);
 208
 209     GKeyFile *config = get_ini();
 210     char *val;
 211     val = g_key_file_get_string(config, "ui", "font_family_default", NULL);
 212     if (val != NULL)
 213         webkit_settings_set_default_font_family(c->settings, val);
 214
 215     val = g_key_file_get_string(config, "ui", "font_family_default_monospace",
 216                                 NULL);
 217     if (val != NULL)
 218         webkit_settings_set_monospace_font_family(c->settings, val);
 219
 220     val = g_key_file_get_string(config, "ui", "font_family_default_sans_serif",
 221                                 NULL);
 222     if (val != NULL)
 223         webkit_settings_set_sans_serif_font_family(c->settings, val);
 224
 225     val =
 226         g_key_file_get_string(config, "ui", "font_family_default_serif", NULL);
 227     if (val != NULL)
 228         webkit_settings_set_serif_font_family(c->settings, val);
 229
 230     val = g_key_file_get_string(config, "browser", "user_agent", NULL);
 231     if (val != NULL)
 232         g_object_set(c->settings, "user-agent", val, NULL);
 233
 234     int val2;
 235     val2 = g_key_file_get_integer(config, "ui", "font_size_default", NULL);
 236     if (val2)
 237         webkit_settings_set_default_font_size(c->settings, val2);
 238
 239     val2 = g_key_file_get_integer(config, "ui", "font_size_default_monospace",
 240                                   NULL);
 241     if (val2)
 242         webkit_settings_set_default_monospace_font_size(c->settings, val2);
 243
 244     gboolean val3;
 245     val3 = g_key_file_get_boolean(config, "browser", "console_to_stdout", NULL);
 246     if (val3)
 247         webkit_settings_set_enable_write_console_messages_to_stdout(c->settings,
 248                                                                     val3);
 249
 250     val3 = g_key_file_get_boolean(config, "browser", "webgl_enable", NULL);
 251     if (!val3)
 252         webkit_settings_set_enable_webgl(c->settings, val3);
 253
 254     val3 = g_key_file_get_boolean(config, "browser",
 255                                   "javascript_can_access_clipboard", NULL);
 256     if (val3)
 257         webkit_settings_set_javascript_can_access_clipboard(c->settings, val3);
 258
 259     double val4;
 260     val4 = g_key_file_get_double(config, "ui", "zoom_level", NULL);
 261     if (val4)
 262         webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), val4);
 263
 264     webkit_settings_set_enable_developer_extras(c->settings, TRUE);
 265
 266     g_signal_connect(G_OBJECT(c->web_view), "notify::favicon",
 267                      G_CALLBACK(changed_favicon), c);
 268     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 269                      G_CALLBACK(changed_title), c);
 270     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 271                      G_CALLBACK(changed_uri), c);
 272     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 273                      G_CALLBACK(changed_load_progress), c);
 274     g_signal_connect(G_OBJECT(c->web_view), "create",
 275                      G_CALLBACK(client_new_request), NULL);
 276     g_signal_connect(G_OBJECT(c->web_view), "close", G_CALLBACK(client_destroy),
 277                      c);
 278     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 279                      G_CALLBACK(decide_policy), NULL);
 280     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 281                      G_CALLBACK(key_web_view), c);
 282     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 283                      G_CALLBACK(key_web_view), c);
 284     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 285                      G_CALLBACK(key_web_view), c);
 286     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 287                      G_CALLBACK(hover_web_view), c);
 288     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 289                      G_CALLBACK(crashed_web_view), c);
 290
 291     GtkWidget *locbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 292
 293     c->jsbutton = gtk_toggle_button_new_with_label("JS");
 294     gtk_widget_set_tooltip_text(c->jsbutton, "Toggle JavaScript execution");
 295     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->jsbutton),
 296                                  cfg.javascript_enabled);
 297     g_signal_connect(G_OBJECT(c->jsbutton), "toggled", G_CALLBACK(togglejs), c);
 298
 299     c->imgbutton = gtk_toggle_button_new_with_label("IMG");
 300     gtk_widget_set_tooltip_text(c->imgbutton, "Toggle image loading");
 301     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->imgbutton),
 302                                  cfg.images_enabled);
 303     g_signal_connect(G_OBJECT(c->imgbutton), "toggled", G_CALLBACK(toggleimg),
 304                      c);
 305
 306     c->location = gtk_entry_new();
 307     gtk_box_pack_start(GTK_BOX(locbox), c->location, TRUE, TRUE, 0);
 308
 309     if (cfg.private) {
 310         GtkWidget *privindicator = gtk_label_new("Private mode");
 311         gtk_widget_set_tooltip_text(
 312             privindicator, "You are in private mode. No history, caches, or "
 313                            "cookies will be saved beyond this session.");
 314         gtk_box_pack_end(GTK_BOX(locbox), privindicator, FALSE, FALSE, 5);
 315     }
 316
 317     gtk_box_pack_start(GTK_BOX(locbox), c->jsbutton, FALSE, FALSE, 5);
 318     gtk_box_pack_start(GTK_BOX(locbox), c->imgbutton, FALSE, FALSE, 0);
 319
 320     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 321                      G_CALLBACK(key_location), c);
 322     g_signal_connect(G_OBJECT(c->location), "icon-release",
 323                      G_CALLBACK(icon_location), c);
 324     /* XXX This is a workaround. Setting this to NULL (which is done in
 325      * grab_feeds_finished() if no feed has been detected) adds a little
 326      * padding left of the text. Not sure why. The point of this call
 327      * right here is to have that padding right from the start. This
 328      * avoids a graphical artifact. */
 329     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 330                                       GTK_ENTRY_ICON_SECONDARY, NULL);
 331
 332     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 333     gtk_box_pack_start(GTK_BOX(c->vbox), locbox, FALSE, FALSE, 0);
 334     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 335     gtk_container_set_focus_child(GTK_CONTAINER(c->vbox), c->web_view);
 336
 337     c->tabicon =
 338         gtk_image_new_from_icon_name("text-html", GTK_ICON_SIZE_SMALL_TOOLBAR);
 339
 340     c->tablabel = gtk_label_new(__NAME__);
 341     gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 342     gtk_label_set_width_chars(GTK_LABEL(c->tablabel), cfg.tab_width_chars);
 343     gtk_widget_set_has_tooltip(c->tablabel, TRUE);
 344
 345     /* XXX I don't own a HiDPI screen, so I don't know if scale_factor
 346      * does the right thing. */
 347     tabbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,
 348                          5 * gtk_widget_get_scale_factor(mw.win));
 349     gtk_box_pack_start(GTK_BOX(tabbox), c->tabicon, FALSE, FALSE, 0);
 350     gtk_box_pack_start(GTK_BOX(tabbox), c->tablabel, TRUE, TRUE, 0);
 351
 352     evbox = gtk_event_box_new();
 353     gtk_container_add(GTK_CONTAINER(evbox), tabbox);
 354     g_signal_connect(G_OBJECT(evbox), "button-release-event",
 355                      G_CALLBACK(key_tablabel), c);
 356
 357     gtk_widget_add_events(evbox, GDK_SCROLL_MASK);
 358     g_signal_connect(G_OBJECT(evbox), "scroll-event", G_CALLBACK(key_tablabel),
 359                      c);
 360
 361     // For easy access, store a reference to our label.
 362     g_object_set_data(G_OBJECT(evbox), "chorizo-tab-label", c->tablabel);
 363
 364     /* This only shows the event box and the label inside, nothing else.
 365      * Needed because the evbox/label is "internal" to the notebook and
 366      * not part of the normal "widget tree" (IIUC). */
 367     gtk_widget_show_all(evbox);
 368
 369     int page = gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)) + 1;
 370     gtk_notebook_insert_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox, page);
 371     gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 372
 373     if (show)
 374         show_web_view(NULL, c);
 375     else
 376         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 377                          G_CALLBACK(show_web_view), c);
 378
 379     if (uri != NULL) {
 380         f = ensure_uri_scheme(uri);
 381         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 382         g_free(f);
 383     }
 384
 385     set_uri(uri, c);
 386
 387     clients++;
 388     client_arr = realloc(client_arr, (clients + 1) * sizeof(client_arr[0]));
 389     client_arr[clients] = c;
 390
 391     return WEBKIT_WEB_VIEW(c->web_view);
 392 }
 393
 394 WebKitWebView *
 395 client_new_request(WebKitWebView *web_view,
 396                    WebKitNavigationAction *navigation_action, gpointer data) {
 397     return client_new(NULL, web_view, FALSE, FALSE);
 398 }
 399
 400 void
 401 cooperation_setup(void) {
 402     GIOChannel *towatch;
 403     gchar *fifofilename, *fifopath;
 404
 405     gchar *priv = (cfg.private) ? "-private" : "";
 406     fifofilename = g_strdup_printf("%s%s%s-%s", __NAME__, priv, ".fifo",
 407                                    g_getenv(__NAME_UPPERCASE__ "_FIFO_SUFFIX"));
 408     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 409     g_free(fifofilename);
 410
 411     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 412         mkfifo(fifopath, 0600);
 413
 414     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 415     if (!cooperative_pipe_fp) {
 416         fprintf(stderr, __NAME__ ": Can't open FIFO at all.\n");
 417     } else {
 418         if (write(cooperative_pipe_fp, "", 0) == -1) {
 419             /* Could not do an empty write to the FIFO which means there's
 420              * no one listening. */
 421             close(cooperative_pipe_fp);
 422             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 423             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 424         } else {
 425             cfg.cooperative_alone = FALSE;
 426         }
 427     }
 428
 429     g_free(fifopath);
 430 }
 431
 432 void
 433 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data) {
 434     struct Client *c = (struct Client *)data;
 435     gdouble p;
 436     gchar *grab_feeds =
 437         "a = document.querySelectorAll('"
 438         "    html > head > "
 439         "link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 440         "    html > head > "
 441         "link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 442         "');"
 443         "if (a.length == 0)"
 444         "    null;"
 445         "else {"
 446         "    out = '';"
 447         "    for (i = 0; i < a.length; i++) {"
 448         "        url = encodeURIComponent(a[i].href);"
 449         "        if ('title' in a[i] && a[i].title != '')"
 450         "            title = encodeURIComponent(a[i].title);"
 451         "        else"
 452         "            title = url;"
 453         "        out += '<li><a href=\"' + url + '\">' + title + "
 454         "'</a></li>';"
 455         "    }"
 456         "    out;"
 457         "}";
 458
 459     p = webkit_web_view_get_estimated_load_progress(
 460         WEBKIT_WEB_VIEW(c->web_view));
 461     if (p == 1) {
 462         p = 0;
 463
 464         /* The page has loaded fully. We now run the short JavaScript
 465          * snippet above that operates on the DOM. It tries to grab all
 466          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 467          * references. */
 468         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view), grab_feeds,
 469                                        NULL, grab_feeds_finished, c);
 470     }
 471     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 472 }
 473
 474 void
 475 changed_favicon(GObject *obj, GParamSpec *pspec, gpointer data) {
 476     struct Client *c = (struct Client *)data;
 477     cairo_surface_t *f;
 478     int w, h, w_should, h_should;
 479     GdkPixbuf *pb, *pb_scaled;
 480
 481     f = webkit_web_view_get_favicon(WEBKIT_WEB_VIEW(c->web_view));
 482     if (f == NULL) {
 483         gtk_image_set_from_icon_name(GTK_IMAGE(c->tabicon), "text-html",
 484                                      GTK_ICON_SIZE_SMALL_TOOLBAR);
 485     } else {
 486         w = cairo_image_surface_get_width(f);
 487         h = cairo_image_surface_get_height(f);
 488         pb = gdk_pixbuf_get_from_surface(f, 0, 0, w, h);
 489         if (pb != NULL) {
 490             w_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 491             h_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 492             pb_scaled = gdk_pixbuf_scale_simple(pb, w_should, h_should,
 493                                                 GDK_INTERP_BILINEAR);
 494             gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb_scaled);
 495
 496             g_object_unref(pb_scaled);
 497             g_object_unref(pb);
 498         }
 499     }
 500 }
 501
 502 void
 503 changed_title(GObject *obj, GParamSpec *pspec, gpointer data) {
 504     const gchar *t, *u;
 505     struct Client *c = (struct Client *)data;
 506
 507     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 508     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 509
 510     u = u == NULL ? __NAME__ : u;
 511     u = u[0] == 0 ? __NAME__ : u;
 512
 513     t = t == NULL ? u : t;
 514     t = t[0] == 0 ? u : t;
 515
 516     gchar *name = malloc(strlen(t) + 4);
 517     gboolean mute = webkit_web_view_get_is_muted(WEBKIT_WEB_VIEW(c->web_view));
 518     gchar *muted = (mute) ? "[m] " : "";
 519     sprintf(name, "%s%s", muted, t);
 520     gtk_label_set_text(GTK_LABEL(c->tablabel), name);
 521     g_free(name);
 522
 523     gtk_widget_set_tooltip_text(c->tablabel, t);
 524     mainwindow_title(gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)));
 525 }
 526
 527 void
 528 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data) {
 529     const gchar *t;
 530     struct Client *c = (struct Client *)data;
 531     FILE *fp;
 532
 533     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 534
 535     /* When a web process crashes, we get a "notify::uri" signal, but we
 536      * can no longer read a meaningful URI. It's just an empty string
 537      * now. Not updating the location bar in this scenario is important,
 538      * because we would override the "WEB PROCESS CRASHED" message. */
 539     if (t != NULL && strlen(t) > 0) {
 540         set_uri(t, c);
 541
 542         gchar *history_file =
 543             g_key_file_get_string(config, "browser", "history_file", NULL);
 544
 545         if (history_file != NULL && !cfg.private) {
 546             fp = fopen(history_file, "a");
 547             if (fp != NULL) {
 548                 fprintf(fp, "%s\n", t);
 549                 fclose(fp);
 550             } else {
 551                 perror(__NAME__ ": Error opening history file");
 552             }
 553         }
 554     }
 555 }
 556
 557 gboolean
 558 crashed_web_view(WebKitWebView *web_view, gpointer data) {
 559     gchar *t;
 560     struct Client *c = (struct Client *)data;
 561
 562     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 563                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 564     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 565     g_free(t);
 566
 567     return TRUE;
 568 }
 569
 570 gboolean
 571 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 572               WebKitPolicyDecisionType type, gpointer data) {
 573     WebKitResponsePolicyDecision *r;
 574
 575     switch (type) {
 576     case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 577         r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 578         if (!webkit_response_policy_decision_is_mime_type_supported(r))
 579             webkit_policy_decision_download(decision);
 580         else
 581             webkit_policy_decision_use(decision);
 582         break;
 583     default:
 584         // Use whatever default there is.
 585         return FALSE;
 586     }
 587     return TRUE;
 588 }
 589
 590 gchar *
 591 ensure_uri_scheme(const gchar *t) {
 592     gchar *f, *fabs;
 593
 594     f = g_ascii_strdown(t, -1);
 595     if (!g_str_has_prefix(f, "http:") && !g_str_has_prefix(f, "https:") &&
 596         !g_str_has_prefix(f, "file:") && !g_str_has_prefix(f, "about:") &&
 597         !g_str_has_prefix(f, "data:") && !g_str_has_prefix(f, "webkit:")) {
 598         g_free(f);
 599         fabs = realpath(t, NULL);
 600         if (fabs != NULL) {
 601             f = g_strdup_printf("file://%s", fabs);
 602             free(fabs);
 603         } else {
 604             f = g_strdup_printf("http://%s", t);
 605         }
 606         return f;
 607     } else
 608         return g_strdup(t);
 609 }
 610
 611 void
 612 get_config(void) {
 613     cfg.cooperative_alone = TRUE;
 614     cfg.cooperative_instances = TRUE;
 615
 616     config = get_ini();
 617
 618     cfg.home_uri = g_key_file_get_string(config, "browser", "homepage", NULL);
 619     cfg.home_uri = (cfg.home_uri) ? cfg.home_uri : "about:blank";
 620
 621     cfg.javascript_enabled =
 622         g_key_file_get_boolean(config, "browser", "javascript_enabled", NULL);
 623     cfg.javascript_enabled =
 624         (cfg.javascript_enabled) ? cfg.javascript_enabled : TRUE;
 625
 626     cfg.images_enabled =
 627         g_key_file_get_boolean(config, "browser", "images_enabled", NULL);
 628     cfg.images_enabled = (cfg.images_enabled) ? cfg.images_enabled : TRUE;
 629
 630     char *input_cookie_policy =
 631         g_key_file_get_string(config, "browser", "cookie_policy", NULL);
 632     cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY;
 633     if (input_cookie_policy) {
 634         if (strcmp(input_cookie_policy, "all") == 0) {
 635             cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS;
 636         } else if (strcmp(input_cookie_policy, "none") == 0) {
 637             cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_NEVER;
 638         }
 639     }
 640
 641     cfg.default_uri = g_key_file_get_string(config, "ui", "default_uri", NULL);
 642     cfg.default_uri = (cfg.default_uri) ? cfg.default_uri : "https://";
 643
 644     cfg.tab_width_chars =
 645         g_key_file_get_integer(config, "ui", "tab_width", NULL);
 646     cfg.tab_width_chars = (cfg.tab_width_chars) ? cfg.tab_width_chars : 20;
 647
 648     cfg.search_engine =
 649         g_key_file_get_string(config, "ui", "search_engine", NULL);
 650     cfg.search_engine =
 651         (cfg.search_engine) ? cfg.search_engine : "https://duckduckgo.com?q=";
 652
 653     cfg.spellcheck_enabled =
 654         g_key_file_get_boolean(config, "ui", "spellcheck_enabled", NULL);
 655     cfg.spellcheck_enabled =
 656         (cfg.spellcheck_enabled) ? cfg.spellcheck_enabled : FALSE;
 657
 658     cfg.spellcheck_language =
 659         g_key_file_get_string(config, "ui", "spellcheck_language", NULL);
 660     cfg.spellcheck_language =
 661         (cfg.spellcheck_language) ? cfg.spellcheck_language : "en_US";
 662
 663     cfg.scroll_lines =
 664         g_key_file_get_integer(config, "ui", "scroll_lines", NULL);
 665     cfg.scroll_lines = (cfg.scroll_lines) ? cfg.scroll_lines : 3;
 666 }
 667
 668 void
 669 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data) {
 670     struct Client *c = (struct Client *)data;
 671     WebKitJavascriptResult *js_result;
 672     JSCValue *value;
 673     JSCException *exception;
 674     GError *err = NULL;
 675     gchar *str_value;
 676
 677     g_free(c->feed_html);
 678     c->feed_html = NULL;
 679
 680     /* This was taken almost verbatim from the example in WebKit's
 681      * documentation:
 682      *
 683      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html
 684      */
 685
 686     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 687                                                       result, &err);
 688     if (!js_result) {
 689         fprintf(stderr, __NAME__ ": Error running javascript: %s\n",
 690                 err->message);
 691         g_error_free(err);
 692         return;
 693     }
 694
 695     value = webkit_javascript_result_get_js_value(js_result);
 696     if (jsc_value_is_string(value)) {
 697         str_value = jsc_value_to_string(value);
 698         exception = jsc_context_get_exception(jsc_value_get_context(value));
 699         if (exception != NULL) {
 700             fprintf(stderr, __NAME__ ": Error running javascript: %s\n",
 701                     jsc_exception_get_message(exception));
 702         } else {
 703             c->feed_html = str_value;
 704         }
 705
 706         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 707                                           GTK_ENTRY_ICON_SECONDARY,
 708                                           "application-rss+xml-symbolic");
 709         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 710                                        GTK_ENTRY_ICON_PRIMARY, TRUE);
 711     } else {
 712         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 713                                           GTK_ENTRY_ICON_SECONDARY, NULL);
 714     }
 715
 716     webkit_javascript_result_unref(js_result);
 717 }
 718
 719 void
 720 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht,
 721                guint modifiers, gpointer data) {
 722     struct Client *c = (struct Client *)data;
 723     const char *to_show;
 724
 725     g_free(c->hover_uri);
 726
 727     if (webkit_hit_test_result_context_is_link(ht)) {
 728         to_show = webkit_hit_test_result_get_link_uri(ht);
 729         c->hover_uri = g_strdup(to_show);
 730     } else {
 731         to_show = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 732         c->hover_uri = NULL;
 733     }
 734
 735     if (!gtk_widget_is_focus(c->location))
 736         set_uri(to_show, c);
 737 }
 738
 739 void
 740 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 741               gpointer data) {
 742     struct Client *c = (struct Client *)data;
 743     gchar *d;
 744     gchar *data_template = "data:text/html,"
 745                            "<!DOCTYPE html>"
 746                            "<html>"
 747                            "    <head>"
 748                            "        <meta charset=\"UTF-8\">"
 749                            "        <title>Feeds</title>"
 750                            "    </head>"
 751                            "    <body>"
 752                            "        <p>Feeds found on this page:</p>"
 753                            "        <ul>"
 754                            "        %s"
 755                            "        </ul>"
 756                            "    </body>"
 757                            "</html>";
 758
 759     if (c->feed_html != NULL) {
 760         /* What we're actually trying to do is show a simple HTML page
 761          * that lists all the feeds on the current page. The function
 762          * webkit_web_view_load_html() looks like the proper way to do
 763          * that. Sad thing is, it doesn't create a history entry, but
 764          * instead simply replaces the content of the current page. This
 765          * is not what we want.
 766          *
 767          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 768          * mechanism to show my custom HTML snippet *and* create a
 769          * history entry.
 770          *
 771          * [0]: https://tools.ietf.org/html/rfc2397
 772          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 773         d = g_strdup_printf(data_template, c->feed_html);
 774         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 775         g_free(d);
 776     }
 777 }
 778
 779 void
 780 init_default_web_context(void) {
 781     gchar *p;
 782     WebKitWebContext *wc;
 783     WebKitCookieManager *cm;
 784
 785     wc = (cfg.private) ? webkit_web_context_new_ephemeral()
 786                        : webkit_web_context_get_default();
 787
 788     p = g_build_filename(g_get_user_config_dir(), __NAME__, "adblock", NULL);
 789     webkit_web_context_set_sandbox_enabled(wc, TRUE);
 790     webkit_web_context_add_path_to_sandbox(wc, p, TRUE);
 791     g_free(p);
 792
 793     WebKitProcessModel model =
 794         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES;
 795     webkit_web_context_set_process_model(wc, model);
 796
 797     p = g_build_filename(g_get_user_data_dir(), __NAME__, "web_extensions",
 798                          NULL);
 799     webkit_web_context_set_web_extensions_directory(wc, p);
 800     g_free(p);
 801
 802     char *xdg_down = getenv("XDG_DOWNLOAD_DIR");
 803     g_signal_connect(G_OBJECT(wc), "download-started",
 804                      G_CALLBACK(download_start),
 805                      (xdg_down) ? xdg_down : "/var/tmp");
 806
 807     trust_user_certs(wc);
 808
 809     cm = webkit_web_context_get_cookie_manager(wc);
 810     webkit_cookie_manager_set_accept_policy(cm, cfg.cookie_policy);
 811
 812     if (!cfg.private) {
 813         webkit_web_context_set_favicon_database_directory(wc, NULL);
 814
 815         gchar *fname = g_build_filename("/", g_get_user_data_dir(), __NAME__,
 816                                         "cookies.db", NULL);
 817         WebKitCookiePersistentStorage type =
 818             WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE;
 819         webkit_cookie_manager_set_persistent_storage(cm, fname, type);
 820         g_free(fname);
 821     }
 822
 823     const gchar *const languages[2] = {(const gchar *)cfg.spellcheck_language,
 824                                        NULL};
 825     webkit_web_context_set_spell_checking_languages(wc, languages);
 826     webkit_web_context_set_spell_checking_enabled(wc, cfg.spellcheck_enabled);
 827 }
 828
 829 void
 830 search(gpointer data, gint direction) {
 831     struct Client *c = (struct Client *)data;
 832     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 833     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 834
 835     if (search_text == NULL)
 836         return;
 837
 838     switch (direction) {
 839     case 0:
 840         webkit_find_controller_search(fc, search_text,
 841                                       WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 842                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
 843                                       G_MAXUINT);
 844         break;
 845     case 1:
 846         webkit_find_controller_search_next(fc);
 847         break;
 848     case -1:
 849         webkit_find_controller_search_previous(fc);
 850         break;
 851     case 2:
 852         webkit_find_controller_search_finish(fc);
 853         break;
 854     }
 855 }
 856
 857 void
 858 search_init(struct Client *c, int direction) {
 859     gtk_widget_grab_focus(c->location);
 860     const gchar *contents = gtk_entry_get_text(GTK_ENTRY(c->location));
 861     if (strcspn(contents, "s/")) {
 862         gtk_entry_set_text(GTK_ENTRY(c->location), "s/");
 863     }
 864     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 865     search(c, 0);
 866     search(c, -1);
 867     search(c, direction);
 868 }
 869
 870 int
 871 def_key(char *key, unsigned int def) {
 872     char *conf = g_key_file_get_string(config, "keybindings", key, NULL);
 873     return (conf) ? gdk_keyval_from_name((conf) ? conf : NULL) : def;
 874 }
 875
 876 gboolean
 877 key_common(GtkWidget *widget, GdkEvent *event, gpointer data) {
 878     struct Client *c = (struct Client *)data;
 879     gdouble now;
 880     gchar *f;
 881
 882     if (event->type == GDK_KEY_PRESS) {
 883         if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK) {
 884             const char *uri =
 885                 webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 886             int key = ((GdkEventKey *)event)->keyval;
 887             if (def_key("download_manager", GDK_KEY_y) == key) {
 888                 downloadmanager_show();
 889                 return TRUE;
 890             } else if (def_key("history_back", GDK_KEY_h) == key) {
 891                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 892                 return TRUE;
 893             } else if (def_key("history_forwards", GDK_KEY_l) == key) {
 894                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 895                 return TRUE;
 896             } else if (def_key("location", GDK_KEY_t) == key) {
 897                 gtk_widget_grab_focus(c->location);
 898                 const char *goal = (strcmp(cfg.home_uri, uri) == 0 || !uri)
 899                                        ? cfg.default_uri
 900                                        : uri;
 901                 gtk_entry_set_text(GTK_ENTRY(c->location), goal);
 902                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 903                 return TRUE;
 904             } else if (def_key("print", GDK_KEY_Print) == key) {
 905                 WebKitPrintOperation *operation =
 906                     webkit_print_operation_new(WEBKIT_WEB_VIEW(c->web_view));
 907                 GtkWidget *toplevel = gtk_widget_get_toplevel(mw.win);
 908                 webkit_print_operation_run_dialog(operation,
 909                                                   GTK_WINDOW(toplevel));
 910                 return TRUE;
 911             } else if (def_key("quit", GDK_KEY_g) == key) {
 912                 search(c, 2);
 913                 gtk_widget_grab_focus(c->web_view);
 914                 gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 915                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 916                 webkit_web_view_run_javascript(
 917                     WEBKIT_WEB_VIEW(c->web_view),
 918                     "window.getSelection().removeAllRanges();"
 919                     "document.activeElement.blur();",
 920                     NULL, NULL, c);
 921                 return TRUE;
 922             } else if (def_key("reload", GDK_KEY_e) == key) {
 923                 webkit_web_view_reload_bypass_cache(
 924                     WEBKIT_WEB_VIEW(c->web_view));
 925                 return TRUE;
 926             } else if (def_key("scroll_line_down", GDK_KEY_j) == key) {
 927                 for (int i = 0; i <= cfg.scroll_lines - 1; i++) {
 928                     event->key.keyval = GDK_KEY_Down;
 929                     gdk_event_put(event);
 930                 }
 931                 return TRUE;
 932             } else if (def_key("scroll_line_up", GDK_KEY_k) == key) {
 933                 for (int i = 0; i <= cfg.scroll_lines - 1; i++) {
 934                     event->key.keyval = GDK_KEY_Up;
 935                     gdk_event_put(event);
 936                 }
 937                 return TRUE;
 938             } else if (def_key("scroll_page_down", GDK_KEY_f) == key) {
 939                 event->key.keyval = GDK_KEY_Page_Down;
 940                 gdk_event_put(event);
 941                 return TRUE;
 942             } else if (def_key("scroll_page_up", GDK_KEY_b) == key) {
 943                 event->key.keyval = GDK_KEY_Page_Up;
 944                 gdk_event_put(event);
 945                 return TRUE;
 946             } else if (def_key("search_forwards", GDK_KEY_s) == key) {
 947                 search_init(c, 1);
 948                 return TRUE;
 949             } else if (def_key("search_backwards", GDK_KEY_r) == key) {
 950                 search_init(c, -1);
 951                 return TRUE;
 952             } else if (def_key("tab_close", GDK_KEY_q) == key) {
 953                 client_destroy(NULL, c);
 954                 return TRUE;
 955             } else if (def_key("tab_switch_1", GDK_KEY_1) == key) {
 956                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 0);
 957                 return TRUE;
 958             } else if (def_key("tab_switch_2", GDK_KEY_2) == key) {
 959                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 1);
 960                 return TRUE;
 961             } else if (def_key("tab_switch_3", GDK_KEY_3) == key) {
 962                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 2);
 963                 return TRUE;
 964             } else if (def_key("tab_switch_4", GDK_KEY_4) == key) {
 965                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 3);
 966                 return TRUE;
 967             } else if (def_key("tab_switch_5", GDK_KEY_5) == key) {
 968                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 4);
 969                 return TRUE;
 970             } else if (def_key("tab_switch_6", GDK_KEY_6) == key) {
 971                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 5);
 972                 return TRUE;
 973             } else if (def_key("tab_switch_7", GDK_KEY_7) == key) {
 974                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 6);
 975                 return TRUE;
 976             } else if (def_key("tab_switch_8", GDK_KEY_8) == key) {
 977                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 7);
 978                 return TRUE;
 979             } else if (def_key("tab_switch_9", GDK_KEY_9) == key) {
 980                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 8);
 981                 return TRUE;
 982             } else if (def_key("tab_previous", GDK_KEY_u) == key) {
 983                 gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 984                 return TRUE;
 985             } else if (def_key("tab_mute", GDK_KEY_m) == key) {
 986                 gboolean muted =
 987                     webkit_web_view_get_is_muted(WEBKIT_WEB_VIEW(c->web_view));
 988                 webkit_web_view_set_is_muted(WEBKIT_WEB_VIEW(c->web_view),
 989                                              !muted);
 990                 changed_title(G_OBJECT(c->web_view), NULL, c);
 991                 return TRUE;
 992             } else if (def_key("tab_new", GDK_KEY_w) == key) {
 993                 f = ensure_uri_scheme(cfg.home_uri);
 994                 client_new(f, NULL, TRUE, TRUE);
 995                 g_free(f);
 996                 return TRUE;
 997             } else if (def_key("tab_next", GDK_KEY_i) == key) {
 998                 gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 999                 return TRUE;
1000             } else if (def_key("toggle_js", GDK_KEY_o) == key) {
1001                 gboolean on =
1002                     webkit_settings_get_enable_javascript(c->settings);
1003                 webkit_settings_set_enable_javascript(c->settings, !on);
1004                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view),
1005                                              c->settings);
1006                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->jsbutton),
1007                                              !on);
1008             } else if (def_key("toggle_img", -1) == key) {
1009                 gboolean on = webkit_settings_get_auto_load_images(c->settings);
1010                 webkit_settings_set_auto_load_images(c->settings, !on);
1011                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view),
1012                                              c->settings);
1013                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->imgbutton),
1014                                              !on);
1015             } else if (def_key("web_search", GDK_KEY_d) == key) {
1016                 gtk_widget_grab_focus(c->location);
1017                 gtk_entry_set_text(GTK_ENTRY(c->location), "w/");
1018                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
1019                 return TRUE;
1020             } else if (def_key("zoom_in", GDK_KEY_equal) == key) {
1021                 now = webkit_web_view_get_zoom_level(
1022                     WEBKIT_WEB_VIEW(c->web_view));
1023                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
1024                                                now + 0.1);
1025                 return TRUE;
1026             } else if (def_key("zoom_out", GDK_KEY_minus) == key) {
1027                 now = webkit_web_view_get_zoom_level(
1028                     WEBKIT_WEB_VIEW(c->web_view));
1029                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
1030                                                now - 0.1);
1031                 return TRUE;
1032             } else if (def_key("zoom_reset", GDK_KEY_0) == key) {
1033                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
1034                                                cfg.zoom_level);
1035                 return TRUE;
1036             }
1037         }
1038     }
1039     return FALSE;
1040 }
1041
1042 gboolean
1043 key_location(GtkWidget *widget, GdkEvent *event, gpointer data) {
1044     struct Client *c = (struct Client *)data;
1045     const gchar *t;
1046     gchar *f;
1047
1048     if (key_common(widget, event, data))
1049         return TRUE;
1050
1051     if (event->type == GDK_KEY_PRESS) {
1052         int key = ((GdkEventKey *)event)->keyval;
1053         if ((GDK_KEY_KP_Enter == key) || (GDK_KEY_Return == key)) {
1054             gtk_widget_grab_focus(c->web_view);
1055             t = gtk_entry_get_text(GTK_ENTRY(c->location));
1056             if (t != NULL && t[0] == 's' && t[1] == '/') {
1057                 if (search_text != NULL)
1058                     g_free(search_text);
1059                 search_text = g_strdup(t + 2);
1060                 search(c, 0);
1061             } else if (t != NULL && t[0] == 'w' && t[1] == '/') {
1062                 int len = strlen(cfg.search_engine) + strlen(t) - 2;
1063                 gchar *f = malloc(len + 1);
1064                 snprintf(f, len + 1, "%s%s", cfg.search_engine, t + 2);
1065                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
1066                 g_free(f);
1067             } else {
1068                 f = ensure_uri_scheme(t);
1069                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
1070                 g_free(f);
1071             }
1072             return TRUE;
1073         } else if (GDK_KEY_Escape == key) {
1074             t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
1075             gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL) ? "" : t);
1076             return TRUE;
1077         }
1078     }
1079     return FALSE;
1080 }
1081
1082 gboolean
1083 key_tablabel(GtkWidget *widget, GdkEvent *event, gpointer data) {
1084     GdkScrollDirection direction;
1085
1086     if (event->type == GDK_BUTTON_RELEASE) {
1087         switch (((GdkEventButton *)event)->button) {
1088         case 2:
1089             client_destroy(NULL, data);
1090             return TRUE;
1091         }
1092     } else if (event->type == GDK_SCROLL) {
1093         gdk_event_get_scroll_direction(event, &direction);
1094         switch (direction) {
1095         case GDK_SCROLL_UP:
1096             gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
1097             break;
1098         case GDK_SCROLL_DOWN:
1099             gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
1100             break;
1101         default:
1102             break;
1103         }
1104         return TRUE;
1105     }
1106     return FALSE;
1107 }
1108
1109 gboolean
1110 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data) {
1111     struct Client *c = (struct Client *)data;
1112     gdouble dx, dy;
1113     gfloat z;
1114
1115     if (key_common(widget, event, data))
1116         return TRUE;
1117
1118     if (event->type == GDK_KEY_PRESS) {
1119         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape) {
1120             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
1121             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
1122         }
1123     } else if (event->type == GDK_BUTTON_RELEASE) {
1124         GdkModifierType modifiers = gtk_accelerator_get_default_mod_mask();
1125         switch (((GdkEventButton *)event)->button) {
1126         case 1:
1127             if ((((GdkEventButton *)event)->state & modifiers) ==
1128                     GDK_CONTROL_MASK &&
1129                 c->hover_uri != NULL) {
1130                 client_new(c->hover_uri, NULL, TRUE, FALSE);
1131                 return TRUE;
1132             }
1133             break;
1134         case 8:
1135             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
1136             return TRUE;
1137         case 9:
1138             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
1139             return TRUE;
1140         }
1141     } else if (event->type == GDK_SCROLL) {
1142         event->scroll.delta_y *= cfg.scroll_lines;
1143         if (((GdkEventScroll *)event)->state & GDK_CONTROL_MASK) {
1144             gdk_event_get_scroll_deltas(event, &dx, &dy);
1145             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1146             z += -dy * 0.1;
1147             z = dx != 0 ? cfg.zoom_level : z;
1148             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1149             return TRUE;
1150         }
1151     }
1152
1153     return FALSE;
1154 }
1155
1156 void
1157 mainwindow_setup(void) {
1158     mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1159     gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1160     g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1161
1162     gchar *priv = (cfg.private) ? "-private" : "";
1163     gchar *title = malloc(strlen(priv) + strlen(__NAME__) + 1);
1164     sprintf(title, "%s%s", __NAME__, priv);
1165     gtk_window_set_title(GTK_WINDOW(mw.win), title);
1166     g_free(title);
1167
1168     mw.notebook = gtk_notebook_new();
1169     gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1170     gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1171     g_signal_connect(G_OBJECT(mw.notebook), "switch-page",
1172                      G_CALLBACK(notebook_switch_page), NULL);
1173 }
1174
1175 void
1176 mainwindow_title(gint idx) {
1177     GtkWidget *child, *widg, *tablabel;
1178     const gchar *text;
1179
1180     child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(mw.notebook), idx);
1181     if (child == NULL)
1182         return;
1183
1184     widg = gtk_notebook_get_tab_label(GTK_NOTEBOOK(mw.notebook), child);
1185     tablabel =
1186         (GtkWidget *)g_object_get_data(G_OBJECT(widg), "chorizo-tab-label");
1187     text = gtk_label_get_text(GTK_LABEL(tablabel));
1188     gtk_window_set_title(GTK_WINDOW(mw.win), text);
1189 }
1190
1191 void
1192 notebook_switch_page(GtkNotebook *nb, GtkWidget *p, guint idx, gpointer data) {
1193     mainwindow_title(idx);
1194 }
1195
1196 gboolean
1197 quit_if_nothing_active(void) {
1198     if (clients == 0) {
1199         if (downloads == 0) {
1200             gtk_main_quit();
1201             return TRUE;
1202         } else {
1203             downloadmanager_show();
1204         }
1205     }
1206
1207     return FALSE;
1208 }
1209
1210 gboolean
1211 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data) {
1212     gchar *uri = NULL;
1213
1214     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1215     if (uri) {
1216         g_strstrip(uri);
1217         client_new(uri, NULL, TRUE, TRUE);
1218         g_free(uri);
1219     }
1220     return TRUE;
1221 }
1222
1223 void
1224 show_web_view(WebKitWebView *web_view, gpointer data) {
1225     struct Client *c = (struct Client *)data;
1226     gint idx;
1227
1228     (void)web_view;
1229
1230     gtk_widget_show_all(mw.win);
1231
1232     if (c->focus_new_tab) {
1233         idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1234         if (idx != -1)
1235             gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1236
1237         gtk_widget_grab_focus(c->web_view);
1238     }
1239 }
1240
1241 void
1242 trust_user_certs(WebKitWebContext *wc) {
1243     GTlsCertificate *cert;
1244     gchar *basedir, *absfile;
1245     const gchar *file;
1246     GDir *dir = NULL;
1247
1248     basedir = g_build_filename(g_get_user_data_dir(), __NAME__, "certs", NULL);
1249     dir = g_dir_open(basedir, 0, NULL);
1250     g_free(basedir);
1251     if (dir != NULL) {
1252         file = g_dir_read_name(dir);
1253         while (file != NULL) {
1254             absfile = g_build_filename(g_get_user_data_dir(), __NAME__, "certs",
1255                                        file, NULL);
1256             cert = g_tls_certificate_new_from_file(absfile, NULL);
1257             g_free(absfile);
1258             if (cert == NULL)
1259                 fprintf(stderr, __NAME__ ": Could not load trusted cert '%s'\n",
1260                         file);
1261             else
1262                 webkit_web_context_allow_tls_certificate_for_host(wc, cert,
1263                                                                   file);
1264             file = g_dir_read_name(dir);
1265         }
1266         g_dir_close(dir);
1267     }
1268 }
1269
1270 GKeyFile *
1271 get_ini(void) {
1272     GKeyFileFlags flags = G_KEY_FILE_NONE;
1273     config = g_key_file_new();
1274
1275     // Load user config
1276     gchar *fname = g_build_filename(g_get_user_config_dir(), __NAME__,
1277                                     "chorizo.ini", NULL);
1278     if (!g_key_file_load_from_file(config, fname, flags, NULL)) {
1279         // Load global config
1280         if (!g_key_file_load_from_file(config, "/etc/chorizo.ini", flags,
1281                                        NULL)) {
1282             fprintf(stderr, "Could not load chorizo.ini");
1283         }
1284     }
1285     g_free(fname);
1286     return config;
1287 }
1288
1289 int
1290 main(int argc, char **argv) {
1291     int opt, i;
1292
1293     while ((opt = getopt(argc, argv, "Cpv")) != -1) {
1294         switch (opt) {
1295         case 'C':
1296             cfg.cooperative_instances = FALSE;
1297             break;
1298         case 'p':
1299             cfg.private = true;
1300             break;
1301         case 'v':
1302             printf("%s %s\n", __NAME__, VERSION);
1303             exit(0);
1304         default:
1305             fprintf(stderr, "Usage: " __NAME__ " [OPTION]... [URI]...\n");
1306             exit(EXIT_FAILURE);
1307         }
1308     }
1309
1310     gtk_init(&argc, &argv);
1311
1312     // Keep clipboard contents after program closes
1313     gtk_clipboard_store(gtk_clipboard_get_for_display(gdk_display_get_default(),
1314                                                       GDK_SELECTION_CLIPBOARD));
1315
1316     get_config();
1317
1318     if (cfg.cooperative_instances)
1319         cooperation_setup();
1320
1321     if (!cfg.cooperative_instances || cfg.cooperative_alone)
1322         init_default_web_context();
1323
1324     downloadmanager_setup();
1325     mainwindow_setup();
1326
1327     client_arr = malloc(sizeof(struct Client *));
1328     if (optind >= argc) {
1329         client_new(cfg.home_uri, NULL, TRUE, TRUE);
1330     } else {
1331         for (i = optind; i < argc; i++)
1332             client_new(argv[i], NULL, TRUE, TRUE);
1333     }
1334
1335     if (!cfg.cooperative_instances || cfg.cooperative_alone)
1336         gtk_main();
1337
1338     for (int i = 0; i < clients; i++) {
1339         free(&(client_arr[i]));
1340     }
1341
1342     exit(EXIT_SUCCESS);
1343 }