surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <X11/X.h>
   6 #include <X11/Xatom.h>
   7 #include <gtk/gtk.h>
   8 #include <gdk/gdkx.h>
   9 #include <gdk/gdk.h>
  10 #include <gdk/gdkkeysyms.h>
  11 #include <string.h>
  12 #include <unistd.h>
  13 #include <getopt.h>
  14 #include <stdlib.h>
  15 #include <stdio.h>
  16 #include <webkit/webkit.h>
  17 #include <glib/gstdio.h>
  18
  19 #define LENGTH(x) (sizeof x / sizeof x[0])
  20
  21 Display *dpy;
  22 Atom urlprop;
  23 typedef struct Client {
  24         GtkWidget *win, *scroll, *vbox, *urlbar, *searchbar;
  25         WebKitWebView *view;
  26         WebKitDownload *download;
  27         gchar *title;
  28         gint progress;
  29         struct Client *next;
  30 } Client;
  31 SoupCookieJar *cookiejar;
  32 Client *clients = NULL;
  33 gboolean embed = FALSE;
  34 gboolean showxid = FALSE;
  35 gboolean ignore_once = FALSE;
  36 extern char *optarg;
  37 extern int optind;
  38
  39 static void cleanup(void);
  40 static void destroyclient(Client *c);
  41 static void destroywin(GtkWidget* w, Client *c);
  42 static void die(char *str);
  43 static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
  44 static gboolean initdownload(WebKitWebView *view, WebKitDownload *o, Client *c);
  45 static gchar *geturi(Client *c);
  46 static void hidesearch(Client *c);
  47 static void hideurl(Client *c);
  48 static gboolean keypress(GtkWidget* w, GdkEventKey *ev, Client *c);
  49 static void linkhover(WebKitWebView* page, const gchar* t, const gchar* l, Client *c);
  50 static void loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c);
  51 static void loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c);
  52 static void loadfile(Client *c, const gchar *f);
  53 static void loaduri(Client *c, const gchar *uri);
  54 static Client *newclient();
  55 static WebKitWebView *newwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c);
  56 static void pasteurl(GtkClipboard *clipboard, const gchar *text, gpointer d);
  57 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
  58 static void progresschange(WebKitWebView *view, gint p, Client *c);
  59 static void setup(void);
  60 static void showsearch(Client *c);
  61 static void showurl(Client *c);
  62 static void stop(Client *c);
  63 static void titlechange(WebKitWebView* view, WebKitWebFrame* frame, const gchar* title, Client *c);
  64 static void usage();
  65 static void updatetitle(Client *c, const gchar *title);
  66
  67 void
  68 cleanup(void) {
  69         while(clients)
  70                 destroyclient(clients);
  71 }
  72
  73 void
  74 destroyclient(Client *c) {
  75         Client *p;
  76
  77         gtk_widget_destroy(GTK_WIDGET(webkit_web_view_new()));
  78         gtk_widget_destroy(c->scroll);
  79         gtk_widget_destroy(c->urlbar);
  80         gtk_widget_destroy(c->searchbar);
  81         gtk_widget_destroy(c->vbox);
  82         gtk_widget_destroy(c->win);
  83         for(p = clients; p && p->next != c; p = p->next);
  84         if(p)
  85                 p->next = c->next;
  86         else
  87                 clients = c->next;
  88         free(c);
  89         if(clients == NULL)
  90                 gtk_main_quit();
  91 }
  92
  93 void
  94 destroywin(GtkWidget* w, Client *c) {
  95         destroyclient(c);
  96 }
  97
  98 void
  99 die(char *str) {
 100         fputs(str, stderr);
 101         exit(EXIT_FAILURE);
 102 }
 103
 104 void
 105 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 106         WebKitDownloadStatus status;
 107
 108         status = webkit_download_get_status(c->download);
 109         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 110                 c->progress = (int)(webkit_download_get_progress(c->download)*100);
 111         }
 112         else {
 113                 stop(c);
 114         }
 115         updatetitle(c, NULL);
 116 }
 117
 118 gboolean
 119 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 120         const gchar *home, *filename;
 121         gchar *uri, *path, *html;
 122
 123         stop(c);
 124         c->download = o;
 125         home = g_get_home_dir();
 126         filename = webkit_download_get_suggested_filename(o);
 127         path = g_build_filename(home, ".surf", "dl",
 128                         filename, NULL);
 129         uri = g_strconcat("file://", path, NULL);
 130         webkit_download_set_destination_uri(c->download, uri);
 131         c->progress = 0;
 132         g_free(uri);
 133         html = g_strdup_printf("Download <b>%s</b>...", filename);
 134         webkit_web_view_load_html_string(c->view, html,
 135                         webkit_download_get_uri(c->download));
 136         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 137         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 138         webkit_download_start(c->download);
 139         updatetitle(c, filename);
 140         g_free(html);
 141         return TRUE;
 142 }
 143
 144 gchar *
 145 geturi(Client *c) {
 146         gchar *uri;
 147
 148         if(!(uri = (gchar *)webkit_web_view_get_uri(c->view)))
 149                 uri = g_strdup("about:blank");
 150         return uri;
 151 }
 152
 153 void
 154 hidesearch(Client *c) {
 155         gtk_widget_hide(c->searchbar);
 156         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 157 }
 158
 159 void
 160 hideurl(Client *c) {
 161         gtk_widget_hide(c->urlbar);
 162         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 163 }
 164
 165 gboolean
 166 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 167         if(ev->type != GDK_KEY_PRESS)
 168                 return FALSE;
 169         if(GTK_WIDGET_HAS_FOCUS(c->searchbar)) {
 170                 switch(ev->keyval) {
 171                 case GDK_Escape:
 172                         hidesearch(c);
 173                         return TRUE;
 174                 case GDK_Return:
 175                         webkit_web_view_search_text(c->view,
 176                                         gtk_entry_get_text(GTK_ENTRY(c->searchbar)),
 177                                         FALSE,
 178                                         !(ev->state & GDK_SHIFT_MASK),
 179                                         TRUE);
 180                         return TRUE;
 181                 case GDK_Left:
 182                 case GDK_Right:
 183                         return FALSE;
 184                 }
 185         }
 186         else if(GTK_WIDGET_HAS_FOCUS(c->urlbar)) {
 187                 switch(ev->keyval) {
 188                 case GDK_Escape:
 189                         hideurl(c);
 190                         return TRUE;
 191                 case GDK_Return:
 192                         loaduri(c, gtk_entry_get_text(GTK_ENTRY(c->urlbar)));
 193                         hideurl(c);
 194                         return TRUE;
 195                 case GDK_Left:
 196                 case GDK_Right:
 197                         return FALSE;
 198                 }
 199         }
 200         if(ev->state & GDK_CONTROL_MASK) {
 201                 switch(ev->keyval) {
 202                 case GDK_p:
 203                         gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteurl, c);
 204                         return TRUE;
 205                 case GDK_y:
 206                         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
 207                         return TRUE;
 208                 case GDK_r:
 209                 case GDK_R:
 210                         if((ev->state & GDK_SHIFT_MASK))
 211                                  webkit_web_view_reload_bypass_cache(c->view);
 212                         else
 213                                  webkit_web_view_reload(c->view);
 214                         return TRUE;
 215                 case GDK_b:
 216                         return TRUE;
 217                 case GDK_g:
 218                         showurl(c);
 219                         return TRUE;
 220                 case GDK_slash:
 221                         showsearch(c);
 222                         return TRUE;
 223                 case GDK_plus:
 224                 case GDK_equal:
 225                         webkit_web_view_zoom_in(c->view);
 226                         return TRUE;
 227                 case GDK_minus:
 228                         webkit_web_view_zoom_out(c->view);
 229                         return TRUE;
 230                 case GDK_0:
 231                         webkit_web_view_set_zoom_level(c->view, 1.0);
 232                         return TRUE;
 233                 case GDK_n:
 234                 case GDK_N:
 235                         webkit_web_view_search_text(c->view,
 236                                         gtk_entry_get_text(GTK_ENTRY(c->searchbar)),
 237                                         FALSE,
 238                                         !(ev->state & GDK_SHIFT_MASK),
 239                                         TRUE);
 240                         return TRUE;
 241                 case GDK_Left:
 242                         webkit_web_view_go_back(c->view);
 243                         return TRUE;
 244                 case GDK_Right:
 245                         webkit_web_view_go_forward(c->view);
 246                         return TRUE;
 247                 }
 248         }
 249         else {
 250                 switch(ev->keyval) {
 251                 case GDK_Escape:
 252                         stop(c);
 253                         return TRUE;
 254                 }
 255         }
 256         return FALSE;
 257 }
 258
 259 void
 260 linkhover(WebKitWebView* page, const gchar* t, const gchar* l, Client *c) {
 261         if(l)
 262                 gtk_window_set_title(GTK_WINDOW(c->win), l);
 263         else
 264                 updatetitle(c, NULL);
 265 }
 266
 267 void
 268 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 269         gchar *uri;
 270
 271         ignore_once = TRUE;
 272         uri = geturi(c);
 273         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), urlprop,
 274                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 275                         strlen(uri) + 1);
 276 }
 277
 278 void
 279 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 280         if(c->download)
 281                 stop(c);
 282         c->progress = 0;
 283         updatetitle(c, NULL);
 284 }
 285
 286 void
 287 loadfile(Client *c, const gchar *f) {
 288         GIOChannel *chan = NULL;
 289         GError *e = NULL;
 290         GString *code;
 291         gchar *line, *uri;
 292
 293         if(strcmp(f, "-") == 0) {
 294                 chan = g_io_channel_unix_new(STDIN_FILENO);
 295                 if (chan) {
 296                         code = g_string_new("");
 297                         while(g_io_channel_read_line(chan, &line, NULL, NULL,
 298                                                 &e) == G_IO_STATUS_NORMAL) {
 299                                 g_string_append(code, line);
 300                                 g_free(line);
 301                         }
 302                         webkit_web_view_load_html_string(c->view, code->str,
 303                                         "file://.");
 304                         g_io_channel_shutdown(chan, FALSE, NULL);
 305                         g_string_free(code, TRUE);
 306                 }
 307                 uri = g_strdup("stdin");
 308         }
 309         else {
 310                 uri = g_strdup_printf("file://%s", f);
 311                 loaduri(c, uri);
 312         }
 313         updatetitle(c, uri);
 314         g_free(uri);
 315 }
 316
 317 void
 318 loaduri(Client *c, const gchar *uri) {
 319         gchar *u;
 320         u = g_strrstr(uri, ":") ? g_strdup(uri)
 321                 : g_strdup_printf("http://%s", uri);
 322         webkit_web_view_load_uri(c->view, u);
 323         c->progress = 0;
 324         updatetitle(c, u);
 325         g_free(u);
 326 }
 327
 328 Client *
 329 newclient(void) {
 330         Client *c;
 331         if(!(c = calloc(1, sizeof(Client))))
 332                 die("Cannot malloc!\n");
 333         /* Window */
 334         if(embed) {
 335                 c->win = gtk_plug_new(0);
 336         }
 337         else {
 338                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 339                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 340         }
 341         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 342         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 343         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 344
 345         /* VBox */
 346         c->vbox = gtk_vbox_new(FALSE, 0);
 347
 348         /* scrolled window */
 349         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 350         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 351                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 352
 353         /* webview */
 354         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 355         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 356         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 357         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 358         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 359         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 360         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(newwindow), c);
 361         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 362
 363         /* urlbar */
 364         c->urlbar = gtk_entry_new();
 365         gtk_entry_set_has_frame(GTK_ENTRY(c->urlbar), FALSE);
 366
 367         /* searchbar */
 368         c->searchbar = gtk_entry_new();
 369         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 370
 371         /* downloadbar */
 372
 373         /* Arranging */
 374         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 375         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 376         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 377         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 378         gtk_container_add(GTK_CONTAINER(c->vbox), c->urlbar);
 379
 380         /* Setup */
 381         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->urlbar, FALSE, FALSE, 0, GTK_PACK_START);
 382         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 383         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 384         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 385         gtk_widget_hide_all(c->searchbar);
 386         gtk_widget_hide_all(c->urlbar);
 387         gtk_widget_show(c->vbox);
 388         gtk_widget_show(c->scroll);
 389         gtk_widget_show(GTK_WIDGET(c->view));
 390         gtk_widget_show(c->win);
 391         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 392         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 393         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 394         c->download = NULL;
 395         c->title = NULL;
 396         c->next = clients;
 397         clients = c;
 398         if(showxid)
 399                 printf("%u\n", (unsigned int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 400         return c;
 401 }
 402
 403 WebKitWebView *
 404 newwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 405         Client *n = newclient();
 406         return n->view;
 407 }
 408
 409
 410 void
 411 pasteurl(GtkClipboard *clipboard, const gchar *text, gpointer d) {
 412         if(text!=NULL)
 413                 loaduri((Client *)d, text);
 414 }
 415
 416 GdkFilterReturn
 417 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 418         Client *c = (Client *)d;
 419         XPropertyEvent *ev;
 420         Atom adummy;
 421         int idummy;
 422         unsigned long ldummy;
 423         unsigned char *buf = NULL;
 424         if(((XEvent *)e)->type == PropertyNotify) {
 425                 ev = &((XEvent *)e)->xproperty;
 426                 if(ev->atom == urlprop && ev->state == PropertyNewValue) {
 427                         if(ignore_once)
 428                                ignore_once = FALSE;
 429                         else {
 430                                 XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
 431                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 432                                 loaduri(c, (gchar *)buf);
 433                                 XFree(buf);
 434                         }
 435                         return GDK_FILTER_REMOVE;
 436                 }
 437         }
 438         return GDK_FILTER_CONTINUE;
 439 }
 440
 441 void
 442 progresschange(WebKitWebView* view, gint p, Client *c) {
 443         c->progress = p;
 444         updatetitle(c, NULL);
 445 }
 446
 447 void setup(void) {
 448         dpy = GDK_DISPLAY();
 449         urlprop = XInternAtom(dpy, "_SURF_URL", False);
 450 }
 451
 452 void
 453 showsearch(Client *c) {
 454         hideurl(c);
 455         gtk_widget_show(c->searchbar);
 456         gtk_widget_grab_focus(c->searchbar);
 457 }
 458
 459 void
 460 showurl(Client *c) {
 461         gchar *uri;
 462
 463         hidesearch(c);
 464         uri = geturi(c);
 465         gtk_entry_set_text(GTK_ENTRY(c->urlbar), uri);
 466         gtk_widget_show(c->urlbar);
 467         gtk_widget_grab_focus(c->urlbar);
 468 }
 469
 470 void
 471 stop(Client *c) {
 472         if(c->download)
 473                 webkit_download_cancel(c->download);
 474         else
 475                 webkit_web_view_stop_loading(c->view);
 476         c->download = NULL;
 477 }
 478
 479 void
 480 titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, Client *c) {
 481         updatetitle(c, t);
 482 }
 483
 484 void
 485 usage() {
 486         fputs("surf - simple browser\n", stderr);
 487         die("usage: surf [-e] [-x] [-u uri] [-f file]\n");
 488 }
 489
 490 void
 491 updatetitle(Client *c, const char *title) {
 492         gchar *t;
 493
 494         if(title) {
 495                 if(c->title)
 496                         g_free(c->title);
 497                 c->title = g_strdup(title);
 498         }
 499         if(c->progress == 100)
 500                 t = g_strdup(c->title);
 501         else
 502                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 503         gtk_window_set_title(GTK_WINDOW(c->win), t);
 504         g_free(t);
 505
 506 }
 507
 508 int main(int argc, char *argv[]) {
 509         SoupSession *s;
 510         Client *c;
 511         int o;
 512         const gchar *home, *filename;
 513
 514         gtk_init(NULL, NULL);
 515         if (!g_thread_supported())
 516                 g_thread_init(NULL);
 517         setup();
 518         while((o = getopt(argc, argv, "vhxeu:f:")) != -1)
 519                 switch(o) {
 520                 case 'x':
 521                         showxid = TRUE;
 522                         break;
 523                 case 'e':
 524                         showxid = TRUE;
 525                         embed = TRUE;
 526                         break;
 527                 case 'u':
 528                         c = newclient();
 529                         loaduri(c, optarg);
 530                         break;
 531                 case 'f':
 532                         c = newclient();
 533                         loadfile(c, optarg);
 534                         break;
 535                 case 'v':
 536                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 537                         break;
 538                 default:
 539                         usage();
 540                 }
 541         if(optind != argc)
 542                 usage();
 543         if(!clients)
 544                 newclient();
 545
 546         /* make dirs */
 547         home = g_get_home_dir();
 548         filename = g_build_filename(home, ".surf", NULL);
 549         g_mkdir_with_parents(filename, 0711);
 550         filename = g_build_filename(home, ".surf", "dl", NULL);
 551         g_mkdir_with_parents(filename, 0755);
 552
 553         /* cookie persistance */
 554         s = webkit_get_default_session();
 555         filename = g_build_filename(home, ".surf", "cookies", NULL);
 556         cookiejar = soup_cookie_jar_text_new(filename, FALSE);
 557         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 558
 559         gtk_main();
 560         cleanup();
 561         return EXIT_SUCCESS;
 562 }