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, gpointer d);
  42 static void die(char *str);
  43 static void download(WebKitDownload *o, GParamSpec *pspec, gpointer d);
  44 static gboolean initdownload(WebKitWebView *view, WebKitDownload *o, gpointer d);
  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, gpointer d);
  49 static void linkhover(WebKitWebView* page, const gchar* t, const gchar* l, gpointer d);
  50 static void loadcommit(WebKitWebView *view, WebKitWebFrame *f, gpointer d);
  51 static void loadstart(WebKitWebView *view, WebKitWebFrame *f, gpointer d);
  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, gpointer d);
  56 static void progresschange(WebKitWebView *view, gint p, gpointer d);
  57 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer data);
  58 static void setup(void);
  59 static void showsearch(Client *c);
  60 static void showurl(Client *c);
  61 static void stop(Client *c);
  62 static void titlechange(WebKitWebView* view, WebKitWebFrame* frame, const gchar* title, gpointer d);
  63 static void updatetitle(Client *c, const gchar *title);
  64
  65 void
  66 cleanup(void) {
  67         while(clients)
  68                 destroyclient(clients);
  69 }
  70
  71 void
  72 destroyclient(Client *c) {
  73         Client *p;
  74
  75         gtk_widget_destroy(GTK_WIDGET(webkit_web_view_new()));
  76         gtk_widget_destroy(c->scroll);
  77         gtk_widget_destroy(c->urlbar);
  78         gtk_widget_destroy(c->searchbar);
  79         gtk_widget_destroy(c->vbox);
  80         gtk_widget_destroy(c->win);
  81         for(p = clients; p && p->next != c; p = p->next);
  82         if(p)
  83                 p->next = c->next;
  84         else
  85                 clients = c->next;
  86         free(c);
  87         if(clients == NULL)
  88                 gtk_main_quit();
  89 }
  90
  91 void
  92 destroywin(GtkWidget* w, gpointer d) {
  93         Client *c = (Client *)d;
  94
  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, gpointer d) {
 106         Client *c = (Client *) d;
 107         WebKitDownloadStatus status;
 108
 109         status = webkit_download_get_status(c->download);
 110         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 111                 c->progress = (int)(webkit_download_get_progress(c->download)*100);
 112         }
 113         else {
 114                 stop(c);
 115         }
 116         updatetitle(c, NULL);
 117 }
 118
 119 gboolean
 120 initdownload(WebKitWebView *view, WebKitDownload *o, gpointer d) {
 121         Client *c = (Client *) d;
 122         const gchar *home, *filename;
 123         gchar *uri, *path;
 124         GString *html = g_string_new("");
 125
 126         stop(c);
 127         c->download = o;
 128         home = g_get_home_dir();
 129         filename = webkit_download_get_suggested_filename(o);
 130         path = g_build_filename(home, ".surf", "dl",
 131                         filename, NULL);
 132         uri = g_strconcat("file://", path, NULL);
 133         webkit_download_set_destination_uri(c->download, uri);
 134         c->progress = 0;
 135         g_free(uri);
 136         html = g_string_append(html, "Downloading <b>");
 137         html = g_string_append(html, filename);
 138         html = g_string_append(html, "</b>...");
 139         webkit_web_view_load_html_string(c->view, html->str,
 140                         webkit_download_get_uri(c->download));
 141         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 142         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 143         webkit_download_start(c->download);
 144         updatetitle(c, filename);
 145         return TRUE;
 146 }
 147
 148 gchar *
 149 geturi(Client *c) {
 150         gchar *uri;
 151
 152         if(!(uri = (gchar *)webkit_web_view_get_uri(c->view)))
 153                 uri = g_strdup("about:blank");
 154         return uri;
 155 }
 156
 157 void
 158 hidesearch(Client *c) {
 159         gtk_widget_hide(c->searchbar);
 160         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 161 }
 162
 163 void
 164 hideurl(Client *c) {
 165         gtk_widget_hide(c->urlbar);
 166         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 167 }
 168
 169 gboolean
 170 keypress(GtkWidget* w, GdkEventKey *ev, gpointer d) {
 171         Client *c = (Client *)d;
 172
 173         if(ev->type != GDK_KEY_PRESS)
 174                 return FALSE;
 175         if(GTK_WIDGET_HAS_FOCUS(c->searchbar)) {
 176                 switch(ev->keyval) {
 177                 case GDK_Escape:
 178                         hidesearch(c);
 179                         return TRUE;
 180                 case GDK_Return:
 181                         webkit_web_view_search_text(c->view,
 182                                         gtk_entry_get_text(GTK_ENTRY(c->searchbar)),
 183                                         FALSE,
 184                                         !(ev->state & GDK_SHIFT_MASK),
 185                                         TRUE);
 186                         return TRUE;
 187                 case GDK_Left:
 188                 case GDK_Right:
 189                         return FALSE;
 190                 }
 191         }
 192         else if(GTK_WIDGET_HAS_FOCUS(c->urlbar)) {
 193                 switch(ev->keyval) {
 194                 case GDK_Escape:
 195                         hideurl(c);
 196                         return TRUE;
 197                 case GDK_Return:
 198                         loaduri(c, gtk_entry_get_text(GTK_ENTRY(c->urlbar)));
 199                         hideurl(c);
 200                         return TRUE;
 201                 case GDK_Left:
 202                 case GDK_Right:
 203                         return FALSE;
 204                 }
 205         }
 206         if(ev->state == GDK_CONTROL_MASK || ev->state == (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) {
 207                 switch(ev->keyval) {
 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, gpointer d) {
 261         Client *c = (Client *)d;
 262
 263         if(l)
 264                 gtk_window_set_title(GTK_WINDOW(c->win), l);
 265         else
 266                 updatetitle(c, NULL);
 267 }
 268
 269 void
 270 loadcommit(WebKitWebView *view, WebKitWebFrame *f, gpointer d) {
 271         Client *c = (Client *)d;
 272         gchar *uri;
 273
 274         uri = geturi(c);
 275         ignore_once = TRUE;
 276         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), urlprop,
 277                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 278                         strlen(uri) + 1);
 279 }
 280
 281 void
 282 loadstart(WebKitWebView *view, WebKitWebFrame *f, gpointer d) {
 283         Client *c = (Client *)d;
 284
 285         if(c->download)
 286                 stop(c);
 287 }
 288
 289 void
 290 loadfile(Client *c, const gchar *f) {
 291         GIOChannel *chan = NULL;
 292         GError *e = NULL;
 293         GString *code = g_string_new("");
 294         GString *uri = g_string_new(f);
 295         gchar *line;
 296
 297         if(strcmp(f, "-") == 0) {
 298                 chan = g_io_channel_unix_new(STDIN_FILENO);
 299                 if (chan) {
 300                         while(g_io_channel_read_line(chan, &line, NULL, NULL,
 301                                                 &e) == G_IO_STATUS_NORMAL) {
 302                                 g_string_append(code, line);
 303                                 g_free(line);
 304                         }
 305                         webkit_web_view_load_html_string(c->view, code->str,
 306                                         "file://.");
 307                         g_io_channel_shutdown(chan, FALSE, NULL);
 308                 }
 309         }
 310         else {
 311                 g_string_prepend(uri, "file://");
 312                 loaduri(c, uri->str);
 313         }
 314         updatetitle(c, uri->str);
 315 }
 316
 317 void
 318 loaduri(Client *c, const gchar *uri) {
 319         GString* u = g_string_new(uri);
 320         if(g_strrstr(u->str, ":") == NULL)
 321                 g_string_prepend(u, "http://");
 322         webkit_web_view_load_uri(c->view, u->str);
 323         c->progress = 0;
 324         updatetitle(c, u->str);
 325         g_string_free(u, TRUE);
 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         c->download = NULL;
 394         c->title = NULL;
 395         c->next = clients;
 396         clients = c;
 397         if(showxid)
 398                 printf("%u\n", (unsigned int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 399         return c;
 400 }
 401
 402 WebKitWebView *
 403 newwindow(WebKitWebView  *v, WebKitWebFrame *f, gpointer d) {
 404         Client *c = newclient();
 405         return c->view;
 406 }
 407
 408 void
 409 progresschange(WebKitWebView* view, gint p, gpointer d) {
 410         Client *c = (Client *)d;
 411
 412         c->progress = p;
 413         updatetitle(c, NULL);
 414 }
 415
 416 GdkFilterReturn
 417 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 418         XPropertyEvent *ev;
 419         Client *c = (Client *)d;
 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(ignore_once == FALSE && ev->atom == urlprop && ev->state == PropertyNewValue) {
 427                         XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
 428                                 &adummy, &idummy, &ldummy, &ldummy, &buf);
 429                         loaduri(c, (gchar *)buf);
 430                         XFree(buf);
 431                         return GDK_FILTER_REMOVE;
 432                 }
 433         }
 434         return GDK_FILTER_CONTINUE;
 435 }
 436
 437 void setup(void) {
 438         dpy = GDK_DISPLAY();
 439         urlprop = XInternAtom(dpy, "_SURF_URL", False);
 440 }
 441
 442 void
 443 showsearch(Client *c) {
 444         hideurl(c);
 445         gtk_widget_show(c->searchbar);
 446         gtk_widget_grab_focus(c->searchbar);
 447 }
 448
 449 void
 450 showurl(Client *c) {
 451         gchar *uri;
 452
 453         hidesearch(c);
 454         uri = geturi(c);
 455         gtk_entry_set_text(GTK_ENTRY(c->urlbar), uri);
 456         gtk_widget_show(c->urlbar);
 457         gtk_widget_grab_focus(c->urlbar);
 458 }
 459
 460 void
 461 stop(Client *c) {
 462         if(c->download)
 463                 webkit_download_cancel(c->download);
 464         else
 465                 webkit_web_view_stop_loading(c->view);
 466         c->download = NULL;
 467 }
 468
 469 void
 470 titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, gpointer d) {
 471         Client *c = (Client *)d;
 472
 473         updatetitle(c, t);
 474 }
 475
 476 void
 477 updatetitle(Client *c, const char *title) {
 478         char t[512];
 479
 480         if(title) {
 481                 if(c->title)
 482                         g_free(c->title);
 483                 c->title = g_strdup(title);
 484         }
 485         if(c->progress == 100)
 486                 snprintf(t, LENGTH(t), "%s", c->title);
 487         else
 488                 snprintf(t, LENGTH(t), "%s [%i%%]", c->title, c->progress);
 489         gtk_window_set_title(GTK_WINDOW(c->win), t);
 490 }
 491
 492 int main(int argc, char *argv[]) {
 493         gchar *uri = NULL, *file = NULL;
 494         SoupSession *s;
 495         Client *c;
 496         int o;
 497         const gchar *home, *filename;
 498
 499         gtk_init(NULL, NULL);
 500         if (!g_thread_supported())
 501                 g_thread_init(NULL);
 502         setup();
 503         while((o = getopt(argc, argv, "vhxeu:f:")) != -1)
 504                 switch(o) {
 505                 case 'x':
 506                         showxid = TRUE;
 507                         break;
 508                 case 'e':
 509                         showxid = TRUE;
 510                         embed = TRUE;
 511                         break;
 512                 case 'u':
 513                         if(!(uri = optarg))
 514                                 goto argerr;
 515                         c = newclient();
 516                         loaduri(c, uri);
 517                         break;
 518                 case 'f':
 519                         if(!(file = optarg))
 520                                 goto argerr;
 521                         c = newclient();
 522                         loadfile(c, file);
 523                         break;
 524                 case 'v':
 525                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 526                         break;
 527                 argerr:
 528                 default:
 529                         puts("surf - simple browser");
 530                         die("usage: surf [-e] [-x] [-u uri] [-f file]\n");
 531                         return EXIT_FAILURE;
 532                 }
 533         if(optind != argc)
 534                 goto argerr;
 535         if(!clients)
 536                 newclient();
 537
 538         /* make dirs */
 539         home = g_get_home_dir();
 540         filename = g_build_filename(home, ".surf", NULL);
 541         g_mkdir_with_parents(filename, 0711);
 542         filename = g_build_filename(home, ".surf", "dl", NULL);
 543         g_mkdir_with_parents(filename, 0755);
 544
 545         /* cookie persistance */
 546         s = webkit_get_default_session();
 547         filename = g_build_filename(home, ".surf", "cookies", NULL);
 548         cookiejar = soup_cookie_jar_text_new(filename, FALSE);
 549         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 550
 551         gtk_main();
 552         cleanup();
 553         return EXIT_SUCCESS;
 554 }