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
  15
  16 static void client_destroy(GtkWidget *, gpointer);
  17 static gboolean client_destroy_request(WebKitWebView *, gpointer);
  18 static WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean);
  19 static WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  20                                          gpointer);
  21 static void cooperation_setup(void);
  22 static void changed_download_progress(GObject *, GParamSpec *, gpointer);
  23 static void changed_load_progress(GObject *, GParamSpec *, gpointer);
  24 static void changed_title(GObject *, GParamSpec *, gpointer);
  25 static void changed_uri(GObject *, GParamSpec *, gpointer);
  26 static gboolean crashed_web_view(WebKitWebView *, gpointer);
  27 static gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  28                               WebKitPolicyDecisionType, gpointer);
  29 static gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  30 static void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  31 static void downloadmanager_cancel(GtkToolButton *, gpointer data);
  32 static gboolean downloadmanager_delete(GtkWidget *, gpointer);
  33 static void downloadmanager_setup(void);
  34 static gchar *ensure_uri_scheme(const gchar *);
  35 static void external_handler_run(gpointer);
  36 static void grab_environment_configuration(void);
  37 static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  38 static gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  39 static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  40 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  41 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  42 static void keywords_load(void);
  43 static gboolean keywords_try_search(WebKitWebView *, const gchar *);
  44 static gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  45                               WebKitHitTestResult *, gpointer);
  46 static gboolean quit_if_nothing_active(void);
  47 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  48 static void search(gpointer, gint);
  49 static void show_web_view(WebKitWebView *, gpointer);
  50 static Window tabbed_launch(void);
  51 static void trust_user_certs(WebKitWebContext *);
  52
  53
  54 struct Client
  55 {
  56     gchar *external_handler_uri;
  57     gchar *hover_uri;
  58     GtkWidget *location;
  59     GtkWidget *vbox;
  60     GtkWidget *web_view;
  61     GtkWidget *win;
  62 };
  63
  64 struct DownloadManager
  65 {
  66     GtkWidget *scroll;
  67     GtkWidget *toolbar;
  68     GtkWidget *win;
  69 } dm;
  70
  71
  72 static const gchar *accepted_language[2] = { NULL, NULL };
  73 static gint clients = 0, downloads = 0;
  74 static gboolean cooperative_alone = TRUE;
  75 static gboolean cooperative_instances = TRUE;
  76 static int cooperative_pipe_fp = 0;
  77 static gchar *download_dir = "/var/tmp";
  78 static gboolean enable_webgl = FALSE;
  79 static gboolean enable_console_to_stdout = FALSE;
  80 static Window embed = 0;
  81 static gchar *fifo_suffix = "main";
  82 static gdouble global_zoom = 1.0;
  83 static gchar *history_file = NULL;
  84 static gchar *home_uri = "about:blank";
  85 static gboolean initial_wc_setup_done = FALSE;
  86 static GHashTable *keywords = NULL;
  87 static gchar *search_text = NULL;
  88 static gboolean tabbed_automagic = TRUE;
  89 static gchar *user_agent = NULL;
  90
  91
  92 void
  93 client_destroy(GtkWidget *widget, gpointer data)
  94 {
  95     struct Client *c = (struct Client *)data;
  96
  97     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
  98                                          changed_load_progress, c);
  99
 100     free(c);
 101     clients--;
 102
 103     quit_if_nothing_active();
 104 }
 105
 106 gboolean
 107 client_destroy_request(WebKitWebView *web_view, gpointer data)
 108 {
 109     struct Client *c = (struct Client *)data;
 110
 111     gtk_widget_destroy(c->win);
 112
 113     return TRUE;
 114 }
 115
 116 WebKitWebView *
 117 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 118 {
 119     struct Client *c;
 120     WebKitWebContext *wc;
 121     gchar *f;
 122
 123     if (uri != NULL && cooperative_instances && !cooperative_alone)
 124     {
 125         f = ensure_uri_scheme(uri);
 126         write(cooperative_pipe_fp, f, strlen(f));
 127         write(cooperative_pipe_fp, "\n", 1);
 128         g_free(f);
 129         return NULL;
 130     }
 131
 132     c = calloc(1, sizeof(struct Client));
 133     if (!c)
 134     {
 135         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 136         exit(EXIT_FAILURE);
 137     }
 138
 139     if (embed != 0)
 140     {
 141         c->win = gtk_plug_new(embed);
 142         if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 143         {
 144             fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 145             gtk_widget_destroy(c->win);
 146             c->win = NULL;
 147             embed = 0;
 148         }
 149     }
 150
 151     if (c->win == NULL)
 152         c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 153
 154     gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 155
 156     g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 157     gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 158
 159     if (related_wv == NULL)
 160         c->web_view = webkit_web_view_new();
 161     else
 162         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 163     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 164
 165     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 166     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 167                      G_CALLBACK(changed_title), c);
 168     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 169                      G_CALLBACK(changed_uri), c);
 170     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 171                      G_CALLBACK(changed_load_progress), c);
 172     g_signal_connect(G_OBJECT(c->web_view), "create",
 173                      G_CALLBACK(client_new_request), NULL);
 174     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 175                      G_CALLBACK(menu_web_view), c);
 176     g_signal_connect(G_OBJECT(c->web_view), "close",
 177                      G_CALLBACK(client_destroy_request), c);
 178     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 179                      G_CALLBACK(decide_policy), NULL);
 180     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 181                      G_CALLBACK(key_web_view), c);
 182     g_signal_connect(G_OBJECT(c->web_view), "button-press-event",
 183                      G_CALLBACK(key_web_view), c);
 184     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 185                      G_CALLBACK(key_web_view), c);
 186     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 187                      G_CALLBACK(hover_web_view), c);
 188     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 189                      G_CALLBACK(crashed_web_view), c);
 190
 191     if (!initial_wc_setup_done)
 192     {
 193         if (accepted_language[0] != NULL)
 194             webkit_web_context_set_preferred_languages(wc, accepted_language);
 195
 196         g_signal_connect(G_OBJECT(wc), "download-started",
 197                          G_CALLBACK(download_handle_start), NULL);
 198
 199         trust_user_certs(wc);
 200
 201         initial_wc_setup_done = TRUE;
 202     }
 203
 204     if (user_agent != NULL)
 205         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 206                      "user-agent", user_agent, NULL);
 207
 208     if (enable_console_to_stdout)
 209         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 210
 211     if (enable_webgl)
 212         webkit_settings_set_enable_webgl(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 213
 214     c->location = gtk_entry_new();
 215     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 216                      G_CALLBACK(key_location), c);
 217
 218     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 219     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 220     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 221
 222     gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 223
 224     if (show)
 225         show_web_view(NULL, c);
 226     else
 227         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 228                          G_CALLBACK(show_web_view), c);
 229
 230     if (uri != NULL)
 231     {
 232         f = ensure_uri_scheme(uri);
 233         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 234         g_free(f);
 235     }
 236
 237     clients++;
 238
 239     return WEBKIT_WEB_VIEW(c->web_view);
 240 }
 241
 242 WebKitWebView *
 243 client_new_request(WebKitWebView *web_view,
 244                    WebKitNavigationAction *navigation_action, gpointer data)
 245 {
 246     return client_new(NULL, web_view, FALSE);
 247 }
 248
 249 void
 250 cooperation_setup(void)
 251 {
 252     GIOChannel *towatch;
 253     gchar *fifofilename, *fifopath;
 254
 255     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 256     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 257     g_free(fifofilename);
 258
 259     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 260         mkfifo(fifopath, 0600);
 261
 262     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 263     if (!cooperative_pipe_fp)
 264     {
 265         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 266     }
 267     else
 268     {
 269         if (write(cooperative_pipe_fp, "", 0) == -1)
 270         {
 271             /* Could not do an empty write to the FIFO which means there's
 272              * no one listening. */
 273             close(cooperative_pipe_fp);
 274             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 275             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 276         }
 277         else
 278             cooperative_alone = FALSE;
 279     }
 280
 281     g_free(fifopath);
 282 }
 283
 284 void
 285 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 286 {
 287     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 288     WebKitURIResponse *resp;
 289     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 290     gdouble p, size_mb;
 291     const gchar *uri;
 292     gchar *t, *filename, *base;
 293
 294     p = webkit_download_get_estimated_progress(download);
 295     p = p > 1 ? 1 : p;
 296     p = p < 0 ? 0 : p;
 297     p *= 100;
 298     resp = webkit_download_get_response(download);
 299     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 300
 301     uri = webkit_download_get_destination(download);
 302     filename = g_filename_from_uri(uri, NULL, NULL);
 303     if (filename == NULL)
 304     {
 305         /* This really should not happen because WebKit uses that URI to
 306          * write to a file... */
 307         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 308         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 309                             webkit_uri_response_get_uri(resp), p, size_mb);
 310     }
 311     else
 312     {
 313         base = g_path_get_basename(filename);
 314         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 315         g_free(filename);
 316         g_free(base);
 317     }
 318     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 319     g_free(t);
 320 }
 321
 322 void
 323 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 324 {
 325     struct Client *c = (struct Client *)data;
 326     gdouble p;
 327
 328     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 329     if (p == 1)
 330         p = 0;
 331     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 332 }
 333
 334 void
 335 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 336 {
 337     const gchar *t, *u;
 338     struct Client *c = (struct Client *)data;
 339
 340     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 341     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 342
 343     u = u == NULL ? __NAME__ : u;
 344     u = u[0] == 0 ? __NAME__ : u;
 345
 346     t = t == NULL ? u : t;
 347     t = t[0] == 0 ? u : t;
 348
 349     gtk_window_set_title(GTK_WINDOW(c->win), t);
 350 }
 351
 352 void
 353 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 354 {
 355     const gchar *t;
 356     struct Client *c = (struct Client *)data;
 357     FILE *fp;
 358
 359     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 360
 361     /* When a web process crashes, we get a "notify::uri" signal, but we
 362      * can no longer read a meaningful URI. It's just an empty string
 363      * now. Not updating the location bar in this scenario is important,
 364      * because we would override the "WEB PROCESS CRASHED" message. */
 365     if (t != NULL && strlen(t) > 0)
 366     {
 367         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 368
 369         if (history_file != NULL)
 370         {
 371             fp = fopen(history_file, "a");
 372             if (fp != NULL)
 373             {
 374                 fprintf(fp, "%s\n", t);
 375                 fclose(fp);
 376             }
 377             else
 378                 perror(__NAME__": Error opening history file");
 379         }
 380     }
 381 }
 382
 383 gboolean
 384 crashed_web_view(WebKitWebView *web_view, gpointer data)
 385 {
 386     gchar *t;
 387     struct Client *c = (struct Client *)data;
 388
 389     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 390                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 391     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 392     g_free(t);
 393
 394     return TRUE;
 395 }
 396
 397 gboolean
 398 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 399               WebKitPolicyDecisionType type, gpointer data)
 400 {
 401     WebKitResponsePolicyDecision *r;
 402
 403     switch (type)
 404     {
 405         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 406             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 407             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 408                 webkit_policy_decision_download(decision);
 409             else
 410                 webkit_policy_decision_use(decision);
 411             break;
 412         default:
 413             /* Use whatever default there is. */
 414             return FALSE;
 415     }
 416     return TRUE;
 417 }
 418
 419 void
 420 download_handle_finished(WebKitDownload *download, gpointer data)
 421 {
 422     downloads--;
 423 }
 424
 425 void
 426 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 427                       gpointer data)
 428 {
 429     g_signal_connect(G_OBJECT(download), "decide-destination",
 430                      G_CALLBACK(download_handle), data);
 431 }
 432
 433 gboolean
 434 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 435 {
 436     gchar *sug_clean, *path, *path2 = NULL, *uri;
 437     GtkToolItem *tb;
 438     int suffix = 1;
 439     size_t i;
 440
 441     sug_clean = g_strdup(suggested_filename);
 442     for (i = 0; i < strlen(sug_clean); i++)
 443         if (sug_clean[i] == G_DIR_SEPARATOR)
 444             sug_clean[i] = '_';
 445
 446     path = g_build_filename(download_dir, sug_clean, NULL);
 447     path2 = g_strdup(path);
 448     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 449     {
 450         g_free(path2);
 451
 452         path2 = g_strdup_printf("%s.%d", path, suffix);
 453         suffix++;
 454     }
 455
 456     if (suffix == 1000)
 457     {
 458         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 459         webkit_download_cancel(download);
 460     }
 461     else
 462     {
 463         uri = g_filename_to_uri(path2, NULL, NULL);
 464         webkit_download_set_destination(download, uri);
 465         g_free(uri);
 466
 467         tb = gtk_tool_button_new(NULL, NULL);
 468         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 469         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 470         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 471         gtk_widget_show_all(dm.win);
 472
 473         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 474                          G_CALLBACK(changed_download_progress), tb);
 475
 476         downloads++;
 477         g_signal_connect(G_OBJECT(download), "finished",
 478                          G_CALLBACK(download_handle_finished), NULL);
 479
 480         g_object_ref(download);
 481         g_signal_connect(G_OBJECT(tb), "clicked",
 482                          G_CALLBACK(downloadmanager_cancel), download);
 483     }
 484
 485     g_free(sug_clean);
 486     g_free(path);
 487     g_free(path2);
 488
 489     /* Propagate -- to whom it may concern. */
 490     return FALSE;
 491 }
 492
 493 void
 494 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 495 {
 496     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 497
 498     webkit_download_cancel(download);
 499     g_object_unref(download);
 500
 501     gtk_widget_destroy(GTK_WIDGET(tb));
 502 }
 503
 504 gboolean
 505 downloadmanager_delete(GtkWidget *obj, gpointer data)
 506 {
 507     if (!quit_if_nothing_active())
 508         gtk_widget_hide(dm.win);
 509
 510     return TRUE;
 511 }
 512
 513 void
 514 downloadmanager_setup(void)
 515 {
 516     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 517     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 518     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 519     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 520     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 521                      G_CALLBACK(downloadmanager_delete), NULL);
 522     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 523                      G_CALLBACK(key_downloadmanager), NULL);
 524
 525     dm.toolbar = gtk_toolbar_new();
 526     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 527                                    GTK_ORIENTATION_VERTICAL);
 528     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 529     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 530
 531     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 532     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 533                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 534     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 535
 536     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 537 }
 538
 539 gchar *
 540 ensure_uri_scheme(const gchar *t)
 541 {
 542     gchar *f, *fabs;
 543
 544     f = g_ascii_strdown(t, -1);
 545     if (!g_str_has_prefix(f, "http:") &&
 546         !g_str_has_prefix(f, "https:") &&
 547         !g_str_has_prefix(f, "file:") &&
 548         !g_str_has_prefix(f, "about:"))
 549     {
 550         g_free(f);
 551         fabs = realpath(t, NULL);
 552         if (fabs != NULL)
 553         {
 554             f = g_strdup_printf("file://%s", fabs);
 555             free(fabs);
 556         }
 557         else
 558             f = g_strdup_printf("http://%s", t);
 559         return f;
 560     }
 561     else
 562         return g_strdup(t);
 563 }
 564
 565 void
 566 external_handler_run(gpointer data)
 567 {
 568     struct Client *c = (struct Client *)data;
 569     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 570     GPid pid;
 571     GError *err = NULL;
 572
 573     argv[2] = c->external_handler_uri;
 574     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 575                        &pid, &err))
 576     {
 577         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 578                 err->message);
 579         g_error_free(err);
 580     }
 581     else
 582         g_spawn_close_pid(pid);
 583 }
 584
 585 void
 586 grab_environment_configuration(void)
 587 {
 588     const gchar *e;
 589
 590     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 591     if (e != NULL)
 592         accepted_language[0] = g_strdup(e);
 593
 594     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 595     if (e != NULL)
 596         download_dir = g_strdup(e);
 597
 598     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 599     if (e != NULL)
 600         enable_console_to_stdout = TRUE;
 601
 602     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_EXPERIMENTAL_WEBGL");
 603     if (e != NULL)
 604         enable_webgl = TRUE;
 605
 606     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 607     if (e != NULL)
 608         fifo_suffix = g_strdup(e);
 609
 610     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 611     if (e != NULL)
 612         history_file = g_strdup(e);
 613
 614     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 615     if (e != NULL)
 616         home_uri = g_strdup(e);
 617
 618     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 619     if (e != NULL)
 620         user_agent = g_strdup(e);
 621
 622     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 623     if (e != NULL)
 624         global_zoom = atof(e);
 625 }
 626
 627 void
 628 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 629                gpointer data)
 630 {
 631     struct Client *c = (struct Client *)data;
 632
 633     if (!gtk_widget_is_focus(c->location))
 634     {
 635         if (webkit_hit_test_result_context_is_link(ht))
 636         {
 637             gtk_entry_set_text(GTK_ENTRY(c->location),
 638                                webkit_hit_test_result_get_link_uri(ht));
 639
 640             if (c->hover_uri != NULL)
 641                 g_free(c->hover_uri);
 642             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 643         }
 644         else
 645         {
 646             gtk_entry_set_text(GTK_ENTRY(c->location),
 647                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 648
 649             if (c->hover_uri != NULL)
 650                 g_free(c->hover_uri);
 651             c->hover_uri = NULL;
 652         }
 653     }
 654 }
 655
 656 gboolean
 657 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 658 {
 659     struct Client *c = (struct Client *)data;
 660     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 661     gchar *f;
 662
 663     if (event->type == GDK_KEY_PRESS)
 664     {
 665         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 666         {
 667             switch (((GdkEventKey *)event)->keyval)
 668             {
 669                 case GDK_KEY_q:  /* close window (left hand) */
 670                     gtk_widget_destroy(c->win);
 671                     return TRUE;
 672                 case GDK_KEY_w:  /* home (left hand) */
 673                     f = ensure_uri_scheme(home_uri);
 674                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 675                     g_free(f);
 676                     return TRUE;
 677                 case GDK_KEY_e:  /* new tab (left hand) */
 678                     f = ensure_uri_scheme(home_uri);
 679                     client_new(f, NULL, TRUE);
 680                     g_free(f);
 681                     return TRUE;
 682                 case GDK_KEY_r:  /* reload (left hand) */
 683                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 684                                                         c->web_view));
 685                     return TRUE;
 686                 case GDK_KEY_d:  /* download manager (left hand) */
 687                     gtk_widget_show_all(dm.win);
 688                     return TRUE;
 689                 case GDK_KEY_2:  /* search forward (left hand) */
 690                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 691                     search(c, 1);
 692                     return TRUE;
 693                 case GDK_KEY_3:  /* search backward (left hand) */
 694                     search(c, -1);
 695                     return TRUE;
 696                 case GDK_KEY_l:  /* location (BOTH hands) */
 697                     gtk_widget_grab_focus(c->location);
 698                     return TRUE;
 699                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 700                     gtk_widget_grab_focus(c->location);
 701                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 702                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 703                     return TRUE;
 704                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 705                     trust_user_certs(wc);
 706                     return TRUE;
 707                 case GDK_KEY_x:  /* launch external handler (left hand) */
 708                     if (c->external_handler_uri != NULL)
 709                         g_free(c->external_handler_uri);
 710                     c->external_handler_uri = g_strdup(
 711                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 712                     external_handler_run(c);
 713                     return TRUE;
 714             }
 715         }
 716         /* navigate backward (left hand) */
 717         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 718         {
 719             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 720             return TRUE;
 721         }
 722         /* navigate forward (left hand) */
 723         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 724         {
 725             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 726             return TRUE;
 727         }
 728     }
 729
 730     return FALSE;
 731 }
 732
 733 gboolean
 734 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 735 {
 736     if (event->type == GDK_KEY_PRESS)
 737     {
 738         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 739         {
 740             switch (((GdkEventKey *)event)->keyval)
 741             {
 742                 case GDK_KEY_d:  /* close window (left hand) */
 743                 case GDK_KEY_q:
 744                     downloadmanager_delete(dm.win, NULL);
 745                     return TRUE;
 746             }
 747         }
 748     }
 749
 750     return FALSE;
 751 }
 752
 753 gboolean
 754 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 755 {
 756     struct Client *c = (struct Client *)data;
 757     const gchar *t;
 758     gchar *f;
 759
 760     if (key_common(widget, event, data))
 761         return TRUE;
 762
 763     if (event->type == GDK_KEY_PRESS)
 764     {
 765         switch (((GdkEventKey *)event)->keyval)
 766         {
 767             case GDK_KEY_KP_Enter:
 768             case GDK_KEY_Return:
 769                 gtk_widget_grab_focus(c->web_view);
 770                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 771                 if (t != NULL && t[0] == ':' && t[1] == '/')
 772                 {
 773                     if (search_text != NULL)
 774                         g_free(search_text);
 775                     search_text = g_strdup(t + 2);  /* XXX whacky */
 776                     search(c, 0);
 777                 }
 778                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 779                 {
 780                     f = ensure_uri_scheme(t);
 781                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 782                     g_free(f);
 783                 }
 784                 return TRUE;
 785             case GDK_KEY_Escape:
 786                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 787                 gtk_entry_set_text(GTK_ENTRY(c->location),
 788                                    (t == NULL ? __NAME__ : t));
 789                 return TRUE;
 790         }
 791     }
 792
 793     return FALSE;
 794 }
 795
 796 gboolean
 797 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 798 {
 799     struct Client *c = (struct Client *)data;
 800     gdouble dx, dy;
 801     gfloat z;
 802
 803     if (key_common(widget, event, data))
 804         return TRUE;
 805
 806     if (event->type == GDK_KEY_PRESS)
 807     {
 808         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 809         {
 810             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 811             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 812         }
 813     }
 814     else if (event->type == GDK_BUTTON_PRESS)
 815     {
 816         switch (((GdkEventButton *)event)->button)
 817         {
 818             case 2:
 819                 if (c->hover_uri != NULL)
 820                 {
 821                     client_new(c->hover_uri, NULL, TRUE);
 822                     return TRUE;
 823                 }
 824                 break;
 825             case 8:
 826                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 827                 return TRUE;
 828             case 9:
 829                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 830                 return TRUE;
 831         }
 832     }
 833     else if (event->type == GDK_SCROLL)
 834     {
 835         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
 836             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
 837         {
 838             gdk_event_get_scroll_deltas(event, &dx, &dy);
 839             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 840             z += -dy * 0.1;
 841             z = dx != 0 ? global_zoom : z;
 842             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
 843             return TRUE;
 844         }
 845     }
 846
 847     return FALSE;
 848 }
 849
 850 void
 851 keywords_load(void)
 852 {
 853     GError *err = NULL;
 854     GIOChannel *channel = NULL;
 855     gchar *path = NULL, *buf = NULL;
 856     gchar **tokens = NULL;
 857
 858     keywords = g_hash_table_new(g_str_hash, g_str_equal);
 859
 860     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
 861                             NULL);
 862     channel = g_io_channel_new_file(path, "r", &err);
 863     if (channel != NULL)
 864     {
 865         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
 866                == G_IO_STATUS_NORMAL)
 867         {
 868             g_strstrip(buf);
 869             if (buf[0] != '#')
 870             {
 871                 tokens = g_strsplit(buf, " ", 2);
 872                 if (tokens[0] != NULL && tokens[1] != NULL)
 873                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
 874                                         g_strdup(tokens[1]));
 875                 g_strfreev(tokens);
 876             }
 877             g_free(buf);
 878         }
 879         g_io_channel_shutdown(channel, FALSE, NULL);
 880     }
 881     g_free(path);
 882 }
 883
 884 gboolean
 885 keywords_try_search(WebKitWebView *web_view, const gchar *t)
 886 {
 887     gboolean ret = FALSE;
 888     gchar **tokens = NULL;
 889     gchar *val = NULL, *escaped = NULL, *uri = NULL;
 890
 891     tokens = g_strsplit(t, " ", 2);
 892     if (tokens[0] != NULL && tokens[1] != NULL)
 893     {
 894         val = g_hash_table_lookup(keywords, tokens[0]);
 895         if (val != NULL)
 896         {
 897             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
 898             uri = g_strdup_printf((gchar *)val, escaped);
 899             webkit_web_view_load_uri(web_view, uri);
 900             g_free(uri);
 901             g_free(escaped);
 902             ret = TRUE;
 903         }
 904     }
 905     g_strfreev(tokens);
 906
 907     return ret;
 908 }
 909
 910 gboolean
 911 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
 912               WebKitHitTestResult *ht, gpointer data)
 913 {
 914     struct Client *c = (struct Client *)data;
 915     GSimpleAction *action = NULL;
 916     WebKitContextMenuItem *mi = NULL;
 917     const gchar *uri = NULL;
 918
 919     (void)ev;
 920
 921     if (webkit_hit_test_result_context_is_link(ht))
 922         uri = webkit_hit_test_result_get_link_uri(ht);
 923     else if (webkit_hit_test_result_context_is_image(ht))
 924         uri = webkit_hit_test_result_get_image_uri(ht);
 925     else if (webkit_hit_test_result_context_is_media(ht))
 926         uri = webkit_hit_test_result_get_media_uri(ht);
 927
 928     if (uri != NULL)
 929     {
 930         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
 931
 932         if (c->external_handler_uri != NULL)
 933             g_free(c->external_handler_uri);
 934         c->external_handler_uri = g_strdup(uri);
 935         action = g_simple_action_new("external_handler", NULL);
 936         g_signal_connect_swapped(G_OBJECT(action), "activate",
 937                                  G_CALLBACK(external_handler_run), data);
 938         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
 939                                                        "Open with external handler",
 940                                                        NULL);
 941         webkit_context_menu_append(menu, mi);
 942         g_object_unref(action);
 943     }
 944
 945     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
 946     return FALSE;
 947 }
 948
 949 gboolean
 950 quit_if_nothing_active(void)
 951 {
 952     if (clients == 0)
 953     {
 954         if (downloads == 0)
 955         {
 956             gtk_main_quit();
 957             return TRUE;
 958         }
 959         else
 960             gtk_widget_show_all(dm.win);
 961     }
 962
 963     return FALSE;
 964 }
 965
 966 gboolean
 967 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
 968 {
 969     gchar *uri = NULL;
 970
 971     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
 972     if (uri)
 973     {
 974         g_strstrip(uri);
 975         client_new(uri, NULL, TRUE);
 976         g_free(uri);
 977     }
 978     return TRUE;
 979 }
 980
 981 void
 982 search(gpointer data, gint direction)
 983 {
 984     struct Client *c = (struct Client *)data;
 985     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 986     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 987
 988     if (search_text == NULL)
 989         return;
 990
 991     switch (direction)
 992     {
 993         case 0:
 994             webkit_find_controller_search(fc, search_text,
 995                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 996                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
 997                                           G_MAXUINT);
 998             break;
 999         case 1:
1000             webkit_find_controller_search_next(fc);
1001             break;
1002         case -1:
1003             webkit_find_controller_search_previous(fc);
1004             break;
1005     }
1006 }
1007
1008 void
1009 show_web_view(WebKitWebView *web_view, gpointer data)
1010 {
1011     struct Client *c = (struct Client *)data;
1012
1013     (void)web_view;
1014
1015     gtk_widget_grab_focus(c->web_view);
1016     gtk_widget_show_all(c->win);
1017 }
1018
1019 Window
1020 tabbed_launch(void)
1021 {
1022     gint tabbed_stdout;
1023     GIOChannel *tabbed_stdout_channel;
1024     GError *err = NULL;
1025     gchar *output = NULL;
1026     char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
1027     Window plug_into;
1028
1029     if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
1030                                   NULL, NULL, NULL, &tabbed_stdout, NULL,
1031                                   &err))
1032     {
1033         fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
1034         g_error_free(err);
1035         return 0;
1036     }
1037
1038     tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
1039     if (tabbed_stdout_channel == NULL)
1040     {
1041         fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
1042         return 0;
1043     }
1044     g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
1045     g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
1046     if (output == NULL)
1047     {
1048         fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
1049         return 0;
1050     }
1051     g_strstrip(output);
1052     plug_into = strtol(output, NULL, 16);
1053     g_free(output);
1054     if (plug_into == 0)
1055         fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
1056     return plug_into;
1057 }
1058
1059 void
1060 trust_user_certs(WebKitWebContext *wc)
1061 {
1062     GTlsCertificate *cert;
1063     const gchar *basedir, *file, *absfile;
1064     GDir *dir;
1065
1066     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1067     dir = g_dir_open(basedir, 0, NULL);
1068     if (dir != NULL)
1069     {
1070         file = g_dir_read_name(dir);
1071         while (file != NULL)
1072         {
1073             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1074                                        file, NULL);
1075             cert = g_tls_certificate_new_from_file(absfile, NULL);
1076             if (cert == NULL)
1077                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1078             else
1079                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1080             file = g_dir_read_name(dir);
1081         }
1082         g_dir_close(dir);
1083     }
1084 }
1085
1086
1087 int
1088 main(int argc, char **argv)
1089 {
1090     gchar *c;
1091     int opt, i;
1092
1093     gtk_init(&argc, &argv);
1094     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1095         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1096
1097     grab_environment_configuration();
1098
1099     while ((opt = getopt(argc, argv, "e:CT")) != -1)
1100     {
1101         switch (opt)
1102         {
1103             case 'e':
1104                 embed = atol(optarg);
1105                 tabbed_automagic = FALSE;
1106                 break;
1107             case 'C':
1108                 cooperative_instances = FALSE;
1109                 break;
1110             case 'T':
1111                 tabbed_automagic = FALSE;
1112                 break;
1113             default:
1114                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1115                 exit(EXIT_FAILURE);
1116         }
1117     }
1118
1119     keywords_load();
1120     if (cooperative_instances)
1121         cooperation_setup();
1122     downloadmanager_setup();
1123
1124     if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
1125         embed = tabbed_launch();
1126
1127     if (!cooperative_instances || cooperative_alone)
1128     {
1129         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1130                              NULL);
1131         webkit_web_context_set_web_extensions_directory(
1132             webkit_web_context_get_default(), c
1133         );
1134     }
1135
1136     if (optind >= argc)
1137         client_new(home_uri, NULL, TRUE);
1138     else
1139     {
1140         for (i = optind; i < argc; i++)
1141             client_new(argv[i], NULL, TRUE);
1142     }
1143
1144     if (!cooperative_instances || cooperative_alone)
1145         gtk_main();
1146     exit(EXIT_SUCCESS);
1147 }