browser.c

   1 #include <limits.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <fcntl.h>
   7 #include <string.h>
   8
   9 #include <gtk/gtk.h>
  10 #include <gtk/gtkx.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <gio/gio.h>
  13 #include <webkit2/webkit2.h>
  14 #include <JavaScriptCore/JavaScript.h>
  15
  16
  17 void client_destroy(GtkWidget *, gpointer);
  18 WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean,
  19                                                                                                         gboolean);
  20 WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  21                                                                                                                                         gpointer);
  22 void cooperation_setup(void);
  23 void changed_download_progress(GObject *, GParamSpec *, gpointer);
  24 void changed_load_progress(GObject *, GParamSpec *, gpointer);
  25 void changed_favicon(GObject *, GParamSpec *, gpointer);
  26 void changed_title(GObject *, GParamSpec *, gpointer);
  27 void changed_uri(GObject *, GParamSpec *, gpointer);
  28 gboolean crashed_web_view(WebKitWebView *, gpointer);
  29 gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  30                                                                                          WebKitPolicyDecisionType, gpointer);
  31 gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  32 void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  33 void downloadmanager_cancel(GtkToolButton *, gpointer);
  34 gboolean downloadmanager_delete(GtkWidget *, gpointer);
  35 void downloadmanager_setup(void);
  36 gchar *ensure_uri_scheme(const gchar *);
  37 void grab_environment_configuration(void);
  38 void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  39 void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  40 void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  41 void init_default_web_context(void);
  42 gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  43 gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  44 gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  45 gboolean key_tablabel(GtkWidget *, GdkEvent *, gpointer);
  46 gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  47 void mainwindow_setup(void);
  48 void mainwindow_title(gint);
  49 void notebook_switch_page(GtkNotebook *, GtkWidget *, guint, gpointer);
  50 gboolean quit_if_nothing_active(void);
  51 gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  52 void run_user_scripts(WebKitWebView *);
  53 void search(gpointer, gint);
  54 void show_web_view(WebKitWebView *, gpointer);
  55 void trust_user_certs(WebKitWebContext *);
  56
  57 struct Client
  58 {
  59         gchar *external_handler_uri;
  60         gchar *hover_uri;
  61         gchar *feed_html;
  62         GtkWidget *location;
  63         GtkWidget *tabicon;
  64         GtkWidget *tablabel;
  65         GtkWidget *vbox;
  66         GtkWidget *web_view;
  67         gboolean focus_new_tab;
  68 };
  69
  70 struct MainWindow
  71 {
  72         GtkWidget *win;
  73         GtkWidget *notebook;
  74 } mw;
  75
  76 struct DownloadManager
  77 {
  78         GtkWidget *scroll;
  79         GtkWidget *toolbar;
  80         GtkWidget *win;
  81 } dm;
  82
  83
  84 const gchar *accepted_language[2] = { NULL, NULL };
  85 gint clients = 0, downloads = 0;
  86 gboolean cooperative_alone = TRUE;
  87 gboolean cooperative_instances = TRUE;
  88 int cooperative_pipe_fp = 0;
  89 gchar *download_dir = "/var/tmp";
  90 gboolean enable_console_to_stdout = FALSE;
  91 gchar *fifo_suffix = "main";
  92 gdouble global_zoom = 1.0;
  93 gchar *history_file = NULL;
  94 gchar *home_uri = "about:blank";
  95 gchar *search_text = NULL;
  96 GtkPositionType tab_pos = GTK_POS_TOP;
  97 gint tab_width_chars = 20;
  98 gchar *user_agent = NULL;
  99
 100
 101 void
 102 client_destroy(GtkWidget *widget, gpointer data)
 103 {
 104         struct Client *c = (struct Client *)data;
 105         gint idx;
 106
 107         g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 108                                                                                                                                                          changed_load_progress, c);
 109
 110         idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
 111         if (idx == -1)
 112                 fprintf(stderr, __NAME__": Tab index was -1, bamboozled\n");
 113         else
 114                 gtk_notebook_remove_page(GTK_NOTEBOOK(mw.notebook), idx);
 115
 116         free(c);
 117         clients--;
 118
 119         quit_if_nothing_active();
 120 }
 121
 122 WebKitWebView *
 123 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show,
 124                                          gboolean focus_tab)
 125 {
 126         struct Client *c;
 127         gchar *f;
 128         GtkWidget *evbox, *tabbox;
 129
 130         if (uri != NULL && cooperative_instances && !cooperative_alone) {
 131                 f = ensure_uri_scheme(uri);
 132                 write(cooperative_pipe_fp, f, strlen(f));
 133                 write(cooperative_pipe_fp, "\n", 1);
 134                 g_free(f);
 135                 return NULL;
 136         }
 137
 138         c = calloc(1, sizeof(struct Client));
 139         if (!c) {
 140                 fprintf(stderr, __NAME__": fatal: calloc failed\n");
 141                 exit(EXIT_FAILURE);
 142         }
 143
 144         c->focus_new_tab = focus_tab;
 145
 146         if (related_wv == NULL)
 147                 c->web_view = webkit_web_view_new();
 148         else
 149                 c->web_view = webkit_web_view_new_with_related_view(related_wv);
 150
 151         webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 152         g_signal_connect(G_OBJECT(c->web_view), "notify::favicon",
 153                                                                          G_CALLBACK(changed_favicon), c);
 154         g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 155                                                                          G_CALLBACK(changed_title), c);
 156         g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 157                                                                          G_CALLBACK(changed_uri), c);
 158         g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 159                                                                          G_CALLBACK(changed_load_progress), c);
 160         g_signal_connect(G_OBJECT(c->web_view), "create",
 161                                                                          G_CALLBACK(client_new_request), NULL);
 162         g_signal_connect(G_OBJECT(c->web_view), "close",
 163                                                                          G_CALLBACK(client_destroy), c);
 164         g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 165                                                                          G_CALLBACK(decide_policy), NULL);
 166         g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 167                                                                          G_CALLBACK(key_web_view), c);
 168         g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 169                                                                          G_CALLBACK(key_web_view), c);
 170         g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 171                                                                          G_CALLBACK(key_web_view), c);
 172         g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 173                                                                          G_CALLBACK(hover_web_view), c);
 174         g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 175                                                                          G_CALLBACK(crashed_web_view), c);
 176
 177         if (user_agent != NULL)
 178                 g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 179                                                                  "user-agent", user_agent, NULL);
 180
 181         if (enable_console_to_stdout)
 182                 webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 183
 184         webkit_settings_set_enable_developer_extras(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 185
 186         c->location = gtk_entry_new();
 187         g_signal_connect(G_OBJECT(c->location), "key-press-event",
 188                                                                          G_CALLBACK(key_location), c);
 189         g_signal_connect(G_OBJECT(c->location), "icon-release",
 190                                                                          G_CALLBACK(icon_location), c);
 191         /* XXX This is a workaround. Setting this to NULL (which is done in
 192          * grab_feeds_finished() if no feed has been detected) adds a little
 193          * padding left of the text. Not sure why. The point of this call
 194          * right here is to have that padding right from the start. This
 195          * avoids a graphical artifact. */
 196         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 197                                                                                                                                                 GTK_ENTRY_ICON_PRIMARY,
 198                                                                                                                                                 NULL);
 199
 200         c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 201         gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 202         gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 203         gtk_container_set_focus_child(GTK_CONTAINER(c->vbox), c->web_view);
 204
 205         c->tabicon = gtk_image_new_from_icon_name("text-html", GTK_ICON_SIZE_SMALL_TOOLBAR);
 206
 207         c->tablabel = gtk_label_new(__NAME__);
 208         gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 209         gtk_label_set_width_chars(GTK_LABEL(c->tablabel), tab_width_chars);
 210         gtk_widget_set_has_tooltip(c->tablabel, TRUE);
 211
 212         /* XXX I don't own a HiDPI screen, so I don't know if scale_factor
 213          * does the right thing. */
 214         tabbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,
 215                                                                                          5 * gtk_widget_get_scale_factor(mw.win));
 216         gtk_box_pack_start(GTK_BOX(tabbox), c->tabicon, FALSE, FALSE, 0);
 217         gtk_box_pack_start(GTK_BOX(tabbox), c->tablabel, TRUE, TRUE, 0);
 218
 219         evbox = gtk_event_box_new();
 220         gtk_container_add(GTK_CONTAINER(evbox), tabbox);
 221         g_signal_connect(G_OBJECT(evbox), "button-release-event",
 222                                                                          G_CALLBACK(key_tablabel), c);
 223
 224         gtk_widget_add_events(evbox, GDK_SCROLL_MASK);
 225         g_signal_connect(G_OBJECT(evbox), "scroll-event",
 226                                                                          G_CALLBACK(key_tablabel), c);
 227
 228         /* For easy access, store a reference to our label. */
 229         g_object_set_data(G_OBJECT(evbox), "lariza-tab-label", c->tablabel);
 230
 231         /* This only shows the event box and the label inside, nothing else.
 232          * Needed because the evbox/label is "internal" to the notebook and
 233          * not part of the normal "widget tree" (IIUC). */
 234         gtk_widget_show_all(evbox);
 235
 236         gtk_notebook_insert_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox,
 237                                                                                                          gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)) + 1);
 238         gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 239
 240         if (show)
 241                 show_web_view(NULL, c);
 242         else
 243                 g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 244                                                                                  G_CALLBACK(show_web_view), c);
 245
 246         if (uri != NULL) {
 247                 f = ensure_uri_scheme(uri);
 248                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 249                 g_free(f);
 250         }
 251
 252         clients++;
 253
 254         return WEBKIT_WEB_VIEW(c->web_view);
 255 }
 256
 257 WebKitWebView *
 258 client_new_request(WebKitWebView *web_view,
 259                                                                          WebKitNavigationAction *navigation_action, gpointer data)
 260 {
 261         return client_new(NULL, web_view, FALSE, FALSE);
 262 }
 263
 264 void
 265 cooperation_setup(void)
 266 {
 267         GIOChannel *towatch;
 268         gchar *fifofilename, *fifopath;
 269
 270         fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 271         fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 272         g_free(fifofilename);
 273
 274         if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 275                 mkfifo(fifopath, 0600);
 276
 277         cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 278         if (!cooperative_pipe_fp) {
 279                 fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 280         } else {
 281                 if (write(cooperative_pipe_fp, "", 0) == -1) {
 282                         /* Could not do an empty write to the FIFO which means there's
 283                          * no one listening. */
 284                         close(cooperative_pipe_fp);
 285                         towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 286                         g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 287                 } else {
 288                         cooperative_alone = FALSE;
 289                 }
 290         }
 291
 292         g_free(fifopath);
 293 }
 294
 295 void
 296 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 297 {
 298         WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 299         WebKitURIResponse *resp;
 300         GtkToolItem *tb = GTK_TOOL_ITEM(data);
 301         gdouble p, size_mb;
 302         const gchar *uri;
 303         gchar *t, *filename, *base;
 304
 305         p = webkit_download_get_estimated_progress(download);
 306         p = p > 1 ? 1 : p;
 307         p = p < 0 ? 0 : p;
 308         p *= 100;
 309         resp = webkit_download_get_response(download);
 310         size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 311
 312         uri = webkit_download_get_destination(download);
 313         filename = g_filename_from_uri(uri, NULL, NULL);
 314         if (filename == NULL) {
 315                 /* This really should not happen because WebKit uses that URI to
 316                  * write to a file... */
 317                 fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 318                 t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 319                                                                                                 webkit_uri_response_get_uri(resp), p, size_mb);
 320         } else {
 321                 base = g_path_get_basename(filename);
 322                 t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 323                 g_free(filename);
 324                 g_free(base);
 325         }
 326         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 327         g_free(t);
 328 }
 329
 330 void
 331 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 332 {
 333         struct Client *c = (struct Client *)data;
 334         gdouble p;
 335         gchar *grab_feeds =
 336                 "a = document.querySelectorAll('"
 337                 "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 338                 "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 339                 "');"
 340                 "if (a.length == 0)"
 341                 "    null;"
 342                 "else"
 343                 "{"
 344                 "    out = '';"
 345                 "    for (i = 0; i < a.length; i++)"
 346                 "    {"
 347                 "        url = encodeURIComponent(a[i].href);"
 348                 "        if ('title' in a[i] && a[i].title != '')"
 349                 "            title = encodeURIComponent(a[i].title);"
 350                 "        else"
 351                 "            title = url;"
 352                 "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 353                 "    }"
 354                 "    out;"
 355                 "}";
 356
 357
 358         p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 359         if (p == 1) {
 360                 p = 0;
 361
 362                 /* The page has loaded fully. We now run the short JavaScript
 363                  * snippet above that operates on the DOM. It tries to grab all
 364                  * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 365                  * references. */
 366                 webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 367                                                                                                                                          grab_feeds, NULL,
 368                                                                                                                                          grab_feeds_finished, c);
 369
 370                 run_user_scripts(WEBKIT_WEB_VIEW(c->web_view));
 371         }
 372         gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 373 }
 374
 375 void
 376 changed_favicon(GObject *obj, GParamSpec *pspec, gpointer data)
 377 {
 378         struct Client *c = (struct Client *)data;
 379         cairo_surface_t *f;
 380         int w, h, w_should, h_should;
 381         GdkPixbuf *pb, *pb_scaled;
 382
 383         f = webkit_web_view_get_favicon(WEBKIT_WEB_VIEW(c->web_view));
 384         if (f == NULL) {
 385                 gtk_image_set_from_icon_name(GTK_IMAGE(c->tabicon), "text-html",
 386                                                                                                                                  GTK_ICON_SIZE_SMALL_TOOLBAR);
 387         } else {
 388                 w = cairo_image_surface_get_width(f);
 389                 h = cairo_image_surface_get_height(f);
 390                 pb = gdk_pixbuf_get_from_surface(f, 0, 0, w, h);
 391                 if (pb != NULL) {
 392                         w_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 393                         h_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 394                         pb_scaled = gdk_pixbuf_scale_simple(pb, w_should, h_should,
 395                                                                                                                                                                         GDK_INTERP_BILINEAR);
 396                         gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb_scaled);
 397
 398                         g_object_unref(pb_scaled);
 399                         g_object_unref(pb);
 400                 }
 401         }
 402 }
 403
 404 void
 405 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 406 {
 407         const gchar *t, *u;
 408         struct Client *c = (struct Client *)data;
 409
 410         u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 411         t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 412
 413         u = u == NULL ? __NAME__ : u;
 414         u = u[0] == 0 ? __NAME__ : u;
 415
 416         t = t == NULL ? u : t;
 417         t = t[0] == 0 ? u : t;
 418
 419         gtk_label_set_text(GTK_LABEL(c->tablabel), t);
 420         gtk_widget_set_tooltip_text(c->tablabel, t);
 421         mainwindow_title(gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)));
 422 }
 423
 424 void
 425 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 426 {
 427         const gchar *t;
 428         struct Client *c = (struct Client *)data;
 429         FILE *fp;
 430
 431         t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 432
 433         /* When a web process crashes, we get a "notify::uri" signal, but we
 434          * can no longer read a meaningful URI. It's just an empty string
 435          * now. Not updating the location bar in this scenario is important,
 436          * because we would override the "WEB PROCESS CRASHED" message. */
 437         if (t != NULL && strlen(t) > 0) {
 438                 gtk_entry_set_text(GTK_ENTRY(c->location), t);
 439
 440                 if (history_file != NULL) {
 441                         fp = fopen(history_file, "a");
 442                         if (fp != NULL) {
 443                                 fprintf(fp, "%s\n", t);
 444                                 fclose(fp);
 445                         } else {
 446                                 perror(__NAME__": Error opening history file");
 447                         }
 448                 }
 449         }
 450 }
 451
 452 gboolean
 453 crashed_web_view(WebKitWebView *web_view, gpointer data)
 454 {
 455         gchar *t;
 456         struct Client *c = (struct Client *)data;
 457
 458         t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 459                                                                                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 460         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 461         g_free(t);
 462
 463         return TRUE;
 464 }
 465
 466 gboolean
 467 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 468                                                         WebKitPolicyDecisionType type, gpointer data)
 469 {
 470         WebKitResponsePolicyDecision *r;
 471
 472         switch (type) {
 473         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 474                 r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 475                 if (!webkit_response_policy_decision_is_mime_type_supported(r))
 476                         webkit_policy_decision_download(decision);
 477                 else
 478                         webkit_policy_decision_use(decision);
 479                 break;
 480         default:
 481                 /* Use whatever default there is. */
 482                 return FALSE;
 483         }
 484         return TRUE;
 485 }
 486
 487 void
 488 download_handle_finished(WebKitDownload *download, gpointer data)
 489 {
 490         downloads--;
 491 }
 492
 493 void
 494 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 495                                                                                         gpointer data)
 496 {
 497         g_signal_connect(G_OBJECT(download), "decide-destination",
 498                                                                          G_CALLBACK(download_handle), data);
 499 }
 500
 501 gboolean
 502 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 503 {
 504         gchar *sug_clean, *path, *path2 = NULL, *uri;
 505         GtkToolItem *tb;
 506         int suffix = 1;
 507         size_t i;
 508
 509         sug_clean = g_strdup(suggested_filename);
 510         for (i = 0; i < strlen(sug_clean); i++)
 511                 if (sug_clean[i] == G_DIR_SEPARATOR)
 512                         sug_clean[i] = '_';
 513
 514         path = g_build_filename(download_dir, sug_clean, NULL);
 515         path2 = g_strdup(path);
 516         while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000) {
 517                 g_free(path2);
 518
 519                 path2 = g_strdup_printf("%s.%d", path, suffix);
 520                 suffix++;
 521         }
 522
 523         if (suffix == 1000) {
 524                 fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 525                 webkit_download_cancel(download);
 526         } else {
 527                 uri = g_filename_to_uri(path2, NULL, NULL);
 528                 webkit_download_set_destination(download, uri);
 529                 g_free(uri);
 530
 531                 tb = gtk_tool_button_new(NULL, NULL);
 532                 gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 533                 gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 534                 gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 535                 gtk_widget_show_all(dm.win);
 536
 537                 g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 538                                                                                  G_CALLBACK(changed_download_progress), tb);
 539
 540                 downloads++;
 541                 g_signal_connect(G_OBJECT(download), "finished",
 542                                                                                  G_CALLBACK(download_handle_finished), NULL);
 543
 544                 g_object_ref(download);
 545                 g_signal_connect(G_OBJECT(tb), "clicked",
 546                                                                                  G_CALLBACK(downloadmanager_cancel), download);
 547         }
 548
 549         g_free(sug_clean);
 550         g_free(path);
 551         g_free(path2);
 552
 553         /* Propagate -- to whom it may concern. */
 554         return FALSE;
 555 }
 556
 557 void
 558 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 559 {
 560         WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 561
 562         webkit_download_cancel(download);
 563         g_object_unref(download);
 564
 565         gtk_widget_destroy(GTK_WIDGET(tb));
 566 }
 567
 568 gboolean
 569 downloadmanager_delete(GtkWidget *obj, gpointer data)
 570 {
 571         if (!quit_if_nothing_active())
 572                 gtk_widget_hide(dm.win);
 573
 574         return TRUE;
 575 }
 576
 577 void
 578 downloadmanager_setup(void)
 579 {
 580         dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 581         gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 582         gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 583         gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 584         g_signal_connect(G_OBJECT(dm.win), "delete-event",
 585                                                                          G_CALLBACK(downloadmanager_delete), NULL);
 586         g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 587                                                                          G_CALLBACK(key_downloadmanager), NULL);
 588
 589         dm.toolbar = gtk_toolbar_new();
 590         gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 591                                                                                                                                  GTK_ORIENTATION_VERTICAL);
 592         gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 593         gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 594
 595         dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 596         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 597                                                                                                                                  GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 598         gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 599
 600         gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 601 }
 602
 603 gchar *
 604 ensure_uri_scheme(const gchar *t)
 605 {
 606         gchar *f, *fabs;
 607
 608         f = g_ascii_strdown(t, -1);
 609         if (!g_str_has_prefix(f, "http:") &&
 610                         !g_str_has_prefix(f, "https:") &&
 611                         !g_str_has_prefix(f, "file:") &&
 612                         !g_str_has_prefix(f, "about:") &&
 613                         !g_str_has_prefix(f, "data:") &&
 614                         !g_str_has_prefix(f, "webkit:")) {
 615                 g_free(f);
 616                 fabs = realpath(t, NULL);
 617                 if (fabs != NULL) {
 618                         f = g_strdup_printf("file://%s", fabs);
 619                         free(fabs);
 620                 } else {
 621                         f = g_strdup_printf("http://%s", t);
 622                 }
 623                 return f;
 624         } else
 625                 return g_strdup(t);
 626 }
 627
 628 void
 629 grab_environment_configuration(void)
 630 {
 631         const gchar *e;
 632
 633         e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 634         if (e != NULL)
 635                 accepted_language[0] = g_strdup(e);
 636
 637         e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 638         if (e != NULL)
 639                 download_dir = g_strdup(e);
 640
 641         e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 642         if (e != NULL)
 643                 enable_console_to_stdout = TRUE;
 644
 645         e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 646         if (e != NULL)
 647                 fifo_suffix = g_strdup(e);
 648
 649         e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 650         if (e != NULL)
 651                 history_file = g_strdup(e);
 652
 653         e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 654         if (e != NULL)
 655                 home_uri = g_strdup(e);
 656
 657         e = g_getenv(__NAME_UPPERCASE__"_TAB_POS");
 658         if (e != NULL) {
 659                 if (strcmp(e, "top") == 0)
 660                         tab_pos = GTK_POS_TOP;
 661                 if (strcmp(e, "right") == 0)
 662                         tab_pos = GTK_POS_RIGHT;
 663                 if (strcmp(e, "bottom") == 0)
 664                         tab_pos = GTK_POS_BOTTOM;
 665                 if (strcmp(e, "left") == 0)
 666                         tab_pos = GTK_POS_LEFT;
 667         }
 668
 669         e = g_getenv(__NAME_UPPERCASE__"_TAB_WIDTH_CHARS");
 670         if (e != NULL)
 671                 tab_width_chars = atoi(e);
 672
 673         e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 674         if (e != NULL)
 675                 user_agent = g_strdup(e);
 676
 677         e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 678         if (e != NULL)
 679                 global_zoom = atof(e);
 680 }
 681
 682 void
 683 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 684 {
 685         struct Client *c = (struct Client *)data;
 686         WebKitJavascriptResult *js_result;
 687         JSCValue *value;
 688         JSCException *exception;
 689         GError *err = NULL;
 690         gchar *str_value;
 691
 692         g_free(c->feed_html);
 693         c->feed_html = NULL;
 694
 695         /* This was taken almost verbatim from the example in WebKit's
 696          * documentation:
 697          *
 698          * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html#webkit-web-view-run-javascript-finish */
 699
 700         js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 701                                                                                                                                                                                                                 result, &err);
 702         if (!js_result) {
 703                 fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 704                 g_error_free(err);
 705                 return;
 706         }
 707
 708         value = webkit_javascript_result_get_js_value(js_result);
 709         if (jsc_value_is_string(value)) {
 710                 str_value = jsc_value_to_string(value);
 711                 exception = jsc_context_get_exception(jsc_value_get_context(value));
 712                 if (exception != NULL) {
 713                         fprintf(stderr, __NAME__": Error running javascript: %s\n",
 714                                                         jsc_exception_get_message(exception));
 715                 } else {
 716                         c->feed_html = str_value;
 717                 }
 718
 719                 gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 720                                                                                                                                                         GTK_ENTRY_ICON_PRIMARY,
 721                                                                                                                                                         "application-rss+xml-symbolic");
 722                 gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 723                                                                                                                                          GTK_ENTRY_ICON_PRIMARY,
 724                                                                                                                                          TRUE);
 725         } else {
 726                 gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 727                                                                                                                                                         GTK_ENTRY_ICON_PRIMARY,
 728                                                                                                                                                         NULL);
 729         }
 730
 731         webkit_javascript_result_unref(js_result);
 732 }
 733
 734 void
 735 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 736                                                          gpointer data)
 737 {
 738         struct Client *c = (struct Client *)data;
 739         const char *to_show;
 740
 741         g_free(c->hover_uri);
 742
 743         if (webkit_hit_test_result_context_is_link(ht)) {
 744                 to_show = webkit_hit_test_result_get_link_uri(ht);
 745                 c->hover_uri = g_strdup(to_show);
 746         } else {
 747                 to_show = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 748                 c->hover_uri = NULL;
 749         }
 750
 751         if (!gtk_widget_is_focus(c->location))
 752                 gtk_entry_set_text(GTK_ENTRY(c->location), to_show);
 753 }
 754
 755 void
 756 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 757                                                         gpointer data)
 758 {
 759         struct Client *c = (struct Client *)data;
 760         gchar *d;
 761         gchar *data_template =
 762                 "data:text/html,"
 763                 "<!DOCTYPE html>"
 764                 "<html>"
 765                 "    <head>"
 766                 "        <meta charset=\"UTF-8\">"
 767                 "        <title>Feeds</title>"
 768                 "    </head>"
 769                 "    <body>"
 770                 "        <p>Feeds found on this page:</p>"
 771                 "        <ul>"
 772                 "        %s"
 773                 "        </ul>"
 774                 "    </body>"
 775                 "</html>";
 776
 777         if (c->feed_html != NULL)
 778                 {
 779                         /* What we're actually trying to do is show a simple HTML page
 780                          * that lists all the feeds on the current page. The function
 781                          * webkit_web_view_load_html() looks like the proper way to do
 782                          * that. Sad thing is, it doesn't create a history entry, but
 783                          * instead simply replaces the content of the current page. This
 784                          * is not what we want.
 785                          *
 786                          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 787                          * mechanism to show my custom HTML snippet *and* create a
 788                          * history entry.
 789                          *
 790                          * [0]: https://tools.ietf.org/html/rfc2397
 791                          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 792                         d = g_strdup_printf(data_template, c->feed_html);
 793                         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 794                         g_free(d);
 795                 }
 796 }
 797
 798 void
 799 init_default_web_context(void)
 800 {
 801         gchar *p;
 802         WebKitWebContext *wc;
 803         WebKitCookieManager *cm;
 804
 805         wc = webkit_web_context_get_default();
 806
 807         p = g_build_filename(g_get_user_config_dir(), __NAME__, "adblock", NULL);
 808         webkit_web_context_set_sandbox_enabled(wc, TRUE);
 809         webkit_web_context_add_path_to_sandbox(wc, p, TRUE);
 810         g_free(p);
 811
 812         webkit_web_context_set_process_model(wc,
 813                                                                                                                                                          WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
 814
 815         p = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
 816                                                                                          NULL);
 817         webkit_web_context_set_web_extensions_directory(wc, p);
 818         g_free(p);
 819
 820         if (accepted_language[0] != NULL)
 821                 webkit_web_context_set_preferred_languages(wc, accepted_language);
 822
 823         g_signal_connect(G_OBJECT(wc), "download-started",
 824                                                                          G_CALLBACK(download_handle_start), NULL);
 825
 826         trust_user_certs(wc);
 827
 828         cm = webkit_web_context_get_cookie_manager(wc);
 829         webkit_cookie_manager_set_accept_policy(cm, WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY);
 830
 831         webkit_web_context_set_favicon_database_directory(wc, NULL);
 832         webkit_cookie_manager_set_persistent_storage(cm,
 833                                                                                                                                                                                          g_build_filename("/",
 834                                                                                                                                                                                                                                                                 g_get_user_cache_dir(),
 835                                                                                                                                                                                                                                                                 __NAME__,
 836                                                                                                                                                                                                                                                                 "cookies.db",
 837                                                                                                                                                                                                                                                                 NULL),
 838                                                                                                                                                                                          WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE);
 839 }
 840
 841 void
 842 search(gpointer data, gint direction)
 843 {
 844         struct Client *c = (struct Client *)data;
 845         WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 846         WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 847
 848         if (search_text == NULL)
 849                 return;
 850
 851         switch (direction) {
 852         case 0:
 853                 webkit_find_controller_search(fc, search_text,
 854                                                                                                                                         WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 855                                                                                                                                         WEBKIT_FIND_OPTIONS_WRAP_AROUND,
 856                                                                                                                                         G_MAXUINT);
 857                 break;
 858         case 1:
 859                 webkit_find_controller_search_next(fc);
 860                 break;
 861         case -1:
 862                 webkit_find_controller_search_previous(fc);
 863                 break;
 864         case 2:
 865                 webkit_find_controller_search_finish(fc);
 866                 break;
 867         }
 868 }
 869
 870 void
 871 search_init(struct Client *c, int direction)
 872 {
 873         gtk_widget_grab_focus(c->location);
 874         const gchar *contents = gtk_entry_get_text(GTK_ENTRY(c->location));
 875         if (strcspn(contents, "s/")) {
 876                 gtk_entry_set_text(GTK_ENTRY(c->location), "s/");
 877         }
 878         gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 879         search(c, 0);
 880         search(c, -1);
 881         search(c, direction);
 882 }
 883
 884 gboolean
 885 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 886 {
 887         struct Client *c = (struct Client *)data;
 888         gdouble now;
 889         gchar *f;
 890
 891         if (event->type == GDK_KEY_PRESS) {
 892                 if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK) {
 893                         switch (((GdkEventKey *)event)->keyval) {
 894                         case GDK_KEY_q:  // close window
 895                                 client_destroy(NULL, c);
 896                                 return TRUE;
 897                         case GDK_KEY_w:  // new tab
 898                                 f = ensure_uri_scheme(home_uri);
 899                                 client_new(f, NULL, TRUE, TRUE);
 900                                 g_free(f);
 901                                 return TRUE;
 902                         case GDK_KEY_e:  // reload
 903                                 webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(c->web_view));
 904                                 return TRUE;
 905                         case GDK_KEY_y:  // download manager
 906                                 gtk_widget_show_all(dm.win);
 907                                 return TRUE;
 908                         case GDK_KEY_d:  // initiate web search
 909                                 gtk_widget_grab_focus(c->location);
 910                                 gtk_entry_set_text(GTK_ENTRY(c->location), "w/");
 911                                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 912                                 return TRUE;
 913                         case GDK_KEY_s:  // i-search forwards
 914                                 search_init(c, 1);
 915                                 return TRUE;
 916                         case GDK_KEY_r:  // i-search backwards
 917                                 search_init(c, -1);
 918                                 return TRUE;
 919                         case GDK_KEY_t:  // location
 920                                 gtk_widget_grab_focus(c->location);
 921                                 gtk_entry_set_text(GTK_ENTRY(c->location),
 922                                                                                                          webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 923                                 return TRUE;
 924                         case GDK_KEY_u:  // previous tab
 925                                 gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 926                                 return TRUE;
 927                         case GDK_KEY_i:  // next tab
 928                                 gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 929                                 return TRUE;
 930                         case GDK_KEY_h:  // back in history
 931                                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 932                                 return TRUE;
 933                         case GDK_KEY_l:  // forward in history
 934                                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 935                                 return TRUE;
 936                         case GDK_KEY_j:  // scroll down
 937                                 for (int i = 0; i < 2; i++) {
 938                                         event->key.keyval = GDK_KEY_Down;
 939                                         gdk_event_put(event);
 940                                 }
 941                                 return TRUE;
 942                         case GDK_KEY_k:  // scroll up
 943                                 for (int i = 0; i < 2; i++) {
 944                                         event->key.keyval = GDK_KEY_Up;
 945                                         gdk_event_put(event);
 946                                 }
 947                                 return TRUE;
 948                         case GDK_KEY_f:  // page down
 949                                 event->key.keyval = GDK_KEY_Page_Down;
 950                                 gdk_event_put(event);
 951                                 return TRUE;
 952                         case GDK_KEY_b:  // page up
 953                                 event->key.keyval = GDK_KEY_Page_Up;
 954                                 gdk_event_put(event);
 955                                 return TRUE;
 956                         case GDK_KEY_o:  // toggle JS
 957                                 WebKitSettings *settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view));
 958                                 gboolean current = webkit_settings_get_enable_javascript(settings);
 959                                 webkit_settings_set_enable_javascript(settings,
 960                                                                                                                                                                                         (current) ? FALSE : TRUE);
 961                                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), settings);
 962                                 return TRUE;
 963                         case GDK_KEY_g:  // go to bottom
 964                                 search(c, 2);
 965                                 gtk_widget_grab_focus(c->web_view);
 966                                 gtk_entry_set_text(GTK_ENTRY(c->location),
 967                                                                                                          webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 968                                 webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 969                                                                                                                                                          "window.getSelection().removeAllRanges();"
 970                                                                                                                                                          "document.activeElement.blur();",
 971                                                                                                                                                          NULL, NULL, c);
 972                                 return TRUE;
 973                         case GDK_KEY_equal:  // zoom in
 974                                 now = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 975                                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), now + 0.1);
 976                                 return TRUE;
 977                         case GDK_KEY_minus:  // zoom out
 978                                 now = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 979                                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), now - 0.1);
 980                                 return TRUE;
 981                         case GDK_KEY_0:  // reset zoom
 982                                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), 1);
 983                                 return TRUE;
 984                         }
 985                 }
 986         }
 987         return FALSE;
 988 }
 989
 990 gboolean
 991 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 992 {
 993         if (event->type == GDK_KEY_PRESS) {
 994                 if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK) {
 995                         switch (((GdkEventKey *)event)->keyval) {
 996                         case GDK_KEY_y:  /* close window (left hand) */
 997                         case GDK_KEY_q:
 998                                 downloadmanager_delete(dm.win, NULL);
 999                                 return TRUE;
1000                         }
1001                 }
1002         }
1003
1004         return FALSE;
1005 }
1006
1007 gboolean
1008 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
1009 {
1010         struct Client *c = (struct Client *)data;
1011         const gchar *t;
1012         gchar *f;
1013
1014         if (key_common(widget, event, data))
1015                 return TRUE;
1016
1017         if (event->type == GDK_KEY_PRESS) {
1018                 switch (((GdkEventKey *)event)->keyval) {
1019                 case GDK_KEY_KP_Enter:
1020                 case GDK_KEY_Return:
1021                         gtk_widget_grab_focus(c->web_view);
1022                         t = gtk_entry_get_text(GTK_ENTRY(c->location));
1023                         if (t != NULL && t[0] == 's' && t[1] == '/') {
1024                                 if (search_text != NULL)
1025                                         g_free(search_text);
1026                                 search_text = g_strdup(t + 2);
1027                                 search(c, 0);
1028                         } else if (t != NULL && t[0] == 'w' && t[1] == '/') {
1029                                 const char *engine = "https://duckduckgo.com?q=";
1030                                 int len = strlen(engine) + strlen(t) - 2;
1031                                 char *f = (char *) malloc(len);
1032                                 snprintf(f, len + 1, "%s%s", engine, t + 2);
1033                                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
1034                                 free(f);
1035                         } else {
1036                                 f = ensure_uri_scheme(t);
1037                                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
1038                                 g_free(f);
1039                         }
1040                         return TRUE;
1041                 case GDK_KEY_Escape:
1042                         t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
1043                         gtk_entry_set_text(GTK_ENTRY(c->location),
1044                                                                                                  (t == NULL ? __NAME__ : t));
1045                         return TRUE;
1046                 }
1047         }
1048
1049         return FALSE;
1050 }
1051
1052 gboolean
1053 key_tablabel(GtkWidget *widget, GdkEvent *event, gpointer data)
1054 {
1055         GdkScrollDirection direction;
1056
1057         if (event->type == GDK_BUTTON_RELEASE) {
1058                 switch (((GdkEventButton *)event)->button) {
1059                 case 2:
1060                         client_destroy(NULL, data);
1061                         return TRUE;
1062                 }
1063         } else if (event->type == GDK_SCROLL) {
1064                 gdk_event_get_scroll_direction(event, &direction);
1065                 switch (direction) {
1066                 case GDK_SCROLL_UP:
1067                         gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
1068                         break;
1069                 case GDK_SCROLL_DOWN:
1070                         gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
1071                         break;
1072                 default:
1073                         break;
1074                 }
1075                 return TRUE;
1076         }
1077         return FALSE;
1078 }
1079
1080 gboolean
1081 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
1082 {
1083         struct Client *c = (struct Client *)data;
1084         gdouble dx, dy;
1085         gfloat z;
1086
1087         if (key_common(widget, event, data))
1088                 return TRUE;
1089
1090         if (event->type == GDK_KEY_PRESS) {
1091                 if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape) {
1092                         webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
1093                         gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
1094                 }
1095         } else if (event->type == GDK_BUTTON_RELEASE) {
1096                 switch (((GdkEventButton *)event)->button) {
1097                 case 2:
1098                         if (c->hover_uri != NULL) {
1099                                 client_new(c->hover_uri, NULL, TRUE, FALSE);
1100                                 return TRUE;
1101                         }
1102                         break;
1103                 case 8:
1104                         webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
1105                         return TRUE;
1106                 case 9:
1107                         webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
1108                         return TRUE;
1109                 }
1110         } else if (event->type == GDK_SCROLL) {
1111                 if (((GdkEventScroll *)event)->state & GDK_CONTROL_MASK ||
1112                                 ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK) {
1113                         gdk_event_get_scroll_deltas(event, &dx, &dy);
1114                         z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1115                         z += -dy * 0.1;
1116                         z = dx != 0 ? global_zoom : z;
1117                         webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1118                         return TRUE;
1119                 }
1120         }
1121
1122         return FALSE;
1123 }
1124
1125 void
1126 mainwindow_setup(void)
1127 {
1128         mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1129         gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1130         g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1131         gtk_window_set_title(GTK_WINDOW(mw.win), __NAME__);
1132
1133         mw.notebook = gtk_notebook_new();
1134         gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1135         gtk_notebook_set_tab_pos(GTK_NOTEBOOK(mw.notebook), tab_pos);
1136         gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1137         g_signal_connect(G_OBJECT(mw.notebook), "switch-page",
1138                                                                          G_CALLBACK(notebook_switch_page), NULL);
1139 }
1140
1141 void
1142 mainwindow_title(gint idx)
1143 {
1144         GtkWidget *child, *widg, *tablabel;
1145         const gchar *text;
1146
1147         child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(mw.notebook), idx);
1148         if (child == NULL)
1149                 return;
1150
1151         widg = gtk_notebook_get_tab_label(GTK_NOTEBOOK(mw.notebook), child);
1152         tablabel = (GtkWidget *)g_object_get_data(G_OBJECT(widg), "lariza-tab-label");
1153         text = gtk_label_get_text(GTK_LABEL(tablabel));
1154         gtk_window_set_title(GTK_WINDOW(mw.win), text);
1155 }
1156
1157 void
1158 notebook_switch_page(GtkNotebook *nb, GtkWidget *p, guint idx, gpointer data)
1159 {
1160         mainwindow_title(idx);
1161 }
1162
1163 gboolean
1164 quit_if_nothing_active(void)
1165 {
1166         if (clients == 0) {
1167                 if (downloads == 0) {
1168                         gtk_main_quit();
1169                         return TRUE;
1170                 } else {
1171                         gtk_widget_show_all(dm.win);
1172                 }
1173         }
1174
1175         return FALSE;
1176 }
1177
1178 gboolean
1179 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1180 {
1181         gchar *uri = NULL;
1182
1183         g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1184         if (uri) {
1185                 g_strstrip(uri);
1186                 client_new(uri, NULL, TRUE, TRUE);
1187                 g_free(uri);
1188         }
1189         return TRUE;
1190 }
1191
1192 void
1193 run_user_scripts(WebKitWebView *web_view)
1194 {
1195         gchar *base = NULL, *path = NULL, *contents = NULL;
1196         const gchar *entry = NULL;
1197         GDir *scriptdir = NULL;
1198
1199         base = g_build_filename(g_get_user_config_dir(), __NAME__, "user-scripts",
1200                                                                                                         NULL);
1201         scriptdir = g_dir_open(base, 0, NULL);
1202         if (scriptdir != NULL) {
1203                 while ((entry = g_dir_read_name(scriptdir)) != NULL) {
1204                         path = g_build_filename(base, entry, NULL);
1205                         if (g_str_has_suffix(path, ".js")) {
1206                                 if (g_file_get_contents(path, &contents, NULL, NULL)) {
1207                                         webkit_web_view_run_javascript(web_view, contents, NULL, NULL, NULL);
1208                                         g_free(contents);
1209                                 }
1210                         }
1211                         g_free(path);
1212                 }
1213                 g_dir_close(scriptdir);
1214         }
1215
1216         g_free(base);
1217 }
1218
1219 void
1220 show_web_view(WebKitWebView *web_view, gpointer data)
1221 {
1222         struct Client *c = (struct Client *)data;
1223         gint idx;
1224
1225         (void)web_view;
1226
1227         gtk_widget_show_all(mw.win);
1228
1229         if (c->focus_new_tab) {
1230                 idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1231                 if (idx != -1)
1232                         gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1233
1234                 gtk_widget_grab_focus(c->web_view);
1235         }
1236 }
1237
1238 void
1239 trust_user_certs(WebKitWebContext *wc)
1240 {
1241         GTlsCertificate *cert;
1242         const gchar *basedir, *file, *absfile;
1243         GDir *dir;
1244
1245         basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1246         dir = g_dir_open(basedir, 0, NULL);
1247         if (dir != NULL) {
1248                 file = g_dir_read_name(dir);
1249                 while (file != NULL) {
1250                         absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1251
1252                                                                                                                                  file, NULL);
1253                         cert = g_tls_certificate_new_from_file(absfile, NULL);
1254                         if (cert == NULL)
1255                                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1256                         else
1257                                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1258                         file = g_dir_read_name(dir);
1259                 }
1260                 g_dir_close(dir);
1261         }
1262 }
1263
1264 int
1265 main(int argc, char **argv)
1266 {
1267         int opt, i;
1268
1269         gtk_init(&argc, &argv);
1270         grab_environment_configuration();
1271
1272         while ((opt = getopt(argc, argv, "C")) != -1) {
1273                 switch (opt) {
1274                 case 'C':
1275                         cooperative_instances = FALSE;
1276                         break;
1277                 default:
1278                         fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1279                         exit(EXIT_FAILURE);
1280                 }
1281         }
1282
1283         if (cooperative_instances)
1284                 cooperation_setup();
1285
1286         if (!cooperative_instances || cooperative_alone)
1287                 init_default_web_context();
1288
1289         downloadmanager_setup();
1290         mainwindow_setup();
1291
1292         if (optind >= argc) {
1293                 client_new(home_uri, NULL, TRUE, TRUE);
1294         } else {
1295                 for (i = optind; i < argc; i++)
1296                         client_new(argv[i], NULL, TRUE, TRUE);
1297         }
1298
1299         if (!cooperative_instances || cooperative_alone)
1300                 gtk_main();
1301
1302         exit(EXIT_SUCCESS);
1303 }