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 * dl;
  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 gboolean decidewindow(WebKitWebView *view, WebKitWebFrame *f,
  41                 WebKitNetworkRequest *r, WebKitWebNavigationAction *n,
  42                 WebKitWebPolicyDecision *p, gpointer d);
  43 static void destroyclient(Client *c);
  44 static void destroywin(GtkWidget* w, gpointer d);
  45 static void die(char *str);
  46 static gboolean download(WebKitWebView *view, WebKitDownload *o, gpointer d);
  47 static gchar *geturi(Client *c);
  48 static void hidesearch(Client *c);
  49 static void hideurl(Client *c);
  50 static gboolean keypress(GtkWidget* w, GdkEventKey *ev, gpointer d);
  51 static void linkhover(WebKitWebView* page, const gchar* t, const gchar* l, gpointer d);
  52 static void loadcommit(WebKitWebView *view, WebKitWebFrame *f, gpointer d);
  53 static void loadfile(const Client *c, const gchar *f);
  54 static void loaduri(const Client *c, const gchar *uri);
  55 static Client *newclient();
  56 static WebKitWebView *newwindow(WebKitWebView  *v, WebKitWebFrame *f, gpointer d);
  57 static void progresschange(WebKitWebView *view, gint p, gpointer d);
  58 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer data);
  59 static void setup(void);
  60 static void showsearch(Client *c);
  61 static void showurl(Client *c);
  62 static void titlechange(WebKitWebView* view, WebKitWebFrame* frame, const gchar* title, gpointer d);
  63 static void updatetitle(Client *c);
  64
  65 void
  66 cleanup(void) {
  67         while(clients)
  68                 destroyclient(clients);
  69 }
  70
  71 gboolean
  72 decidewindow(WebKitWebView *view, WebKitWebFrame *f,
  73                 WebKitNetworkRequest *r, WebKitWebNavigationAction *n,
  74                 WebKitWebPolicyDecision *p, gpointer d) {
  75         /* TODO */
  76         return TRUE;
  77 }
  78
  79 void
  80 destroyclient(Client *c) {
  81         Client *p;
  82
  83         gtk_widget_destroy(GTK_WIDGET(webkit_web_view_new()));
  84         gtk_widget_destroy(c->scroll);
  85         gtk_widget_destroy(c->urlbar);
  86         gtk_widget_destroy(c->searchbar);
  87         gtk_widget_destroy(c->vbox);
  88         gtk_widget_destroy(c->win);
  89         for(p = clients; p && p->next != c; p = p->next);
  90         if(p)
  91                 p->next = c->next;
  92         else
  93                 clients = c->next;
  94         free(c);
  95         if(clients == NULL)
  96                 gtk_main_quit();
  97 }
  98
  99 void
 100 destroywin(GtkWidget* w, gpointer d) {
 101         Client *c = (Client *)d;
 102
 103         destroyclient(c);
 104 }
 105
 106 void die(char *str) {
 107         fputs(str, stderr);
 108         exit(EXIT_FAILURE);
 109 }
 110
 111 gboolean
 112 download(WebKitWebView *view, WebKitDownload *o, gpointer d) {
 113         /* TODO */
 114         const gchar *home;
 115         gchar *uri, *filename;
 116
 117         home = g_get_home_dir();
 118         filename = g_build_filename(home, ".surf", "dl",
 119                         webkit_download_get_suggested_filename(o), NULL);
 120         g_mkdir(g_path_get_dirname(filename), 0755);
 121         uri = g_strconcat("file://", filename, NULL);
 122         webkit_download_set_destination_uri(o, uri);
 123         g_free(filename);
 124         g_free(uri);
 125         webkit_download_start(o);
 126         return TRUE;
 127 }
 128
 129 gchar *
 130 geturi(Client *c) {
 131         gchar *uri;
 132
 133         if(!(uri = (gchar *)webkit_web_view_get_uri(c->view)))
 134                 uri = g_strdup("about:blank");
 135         return uri;
 136 }
 137
 138 void
 139 hidesearch(Client *c) {
 140         gtk_widget_hide(c->searchbar);
 141         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 142 }
 143
 144 void
 145 hideurl(Client *c) {
 146         gtk_widget_hide(c->urlbar);
 147         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 148 }
 149
 150 gboolean
 151 keypress(GtkWidget* w, GdkEventKey *ev, gpointer d) {
 152         Client *c = (Client *)d;
 153
 154         if(ev->type != GDK_KEY_PRESS)
 155                 return FALSE;
 156         if(GTK_WIDGET_HAS_FOCUS(c->searchbar)) {
 157                 switch(ev->keyval) {
 158                 case GDK_Escape:
 159                         hidesearch(c);
 160                         return TRUE;
 161                 case GDK_Return:
 162                         webkit_web_view_search_text(c->view,
 163                                         gtk_entry_get_text(GTK_ENTRY(c->searchbar)),
 164                                         FALSE,
 165                                         !(ev->state & GDK_SHIFT_MASK),
 166                                         TRUE);
 167                         return TRUE;
 168                 case GDK_Left:
 169                 case GDK_Right:
 170                 case GDK_r:
 171                         return FALSE;
 172                 }
 173         }
 174         else if(GTK_WIDGET_HAS_FOCUS(c->urlbar)) {
 175                 switch(ev->keyval) {
 176                 case GDK_Escape:
 177                         hideurl(c);
 178                         return TRUE;
 179                 case GDK_Return:
 180                         loaduri(c, gtk_entry_get_text(GTK_ENTRY(c->urlbar)));
 181                         hideurl(c);
 182                         return TRUE;
 183                 case GDK_Left:
 184                 case GDK_Right:
 185                 case GDK_r:
 186                         return FALSE;
 187                 }
 188         }
 189         else if(ev->state == GDK_CONTROL_MASK || ev->state == (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) {
 190                 switch(ev->keyval) {
 191                 case GDK_r:
 192                 case GDK_R:
 193                         if((ev->state & GDK_SHIFT_MASK))
 194                                  webkit_web_view_reload_bypass_cache(c->view);
 195                         else
 196                                  webkit_web_view_reload(c->view);
 197                         return TRUE;
 198                 case GDK_b:
 199                         return TRUE;
 200                 case GDK_g:
 201                         showurl(c);
 202                         return TRUE;
 203                 case GDK_slash:
 204                         showsearch(c);
 205                         return TRUE;
 206                 case GDK_Left:
 207                         webkit_web_view_go_back(c->view);
 208                         return TRUE;
 209                 case GDK_Right:
 210                         webkit_web_view_go_forward(c->view);
 211                         return TRUE;
 212                 }
 213         }
 214         else {
 215                 switch(ev->keyval) {
 216                 case GDK_k:
 217                         webkit_web_view_move_cursor(c->view, GTK_MOVEMENT_DISPLAY_LINES, -1);
 218                         return TRUE;
 219                 case GDK_j:
 220                         webkit_web_view_move_cursor(c->view, GTK_MOVEMENT_DISPLAY_LINES, 1);
 221                         return TRUE;
 222                 }
 223         }
 224         return FALSE;
 225 }
 226
 227 void
 228 linkhover(WebKitWebView* page, const gchar* t, const gchar* l, gpointer d) {
 229         Client *c = (Client *)d;
 230
 231         if(l)
 232                 gtk_window_set_title(GTK_WINDOW(c->win), l);
 233         else
 234                 updatetitle(c);
 235 }
 236
 237 void
 238 loadcommit(WebKitWebView *view, WebKitWebFrame *f, gpointer d) {
 239         Client *c = (Client *)d;
 240         gchar *uri;
 241
 242         uri = geturi(c);
 243         ignore_once = TRUE;
 244         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), urlprop,
 245                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 246                         strlen(uri) + 1);
 247 }
 248
 249 void
 250 loadfile(const Client *c, const gchar *f) {
 251         GIOChannel *chan = NULL;
 252         GError *e = NULL;
 253         GString *code = g_string_new("");
 254         GString *uri = g_string_new(f);
 255         gchar *line;
 256
 257         if(strcmp(f, "-") == 0) {
 258                 chan = g_io_channel_unix_new(STDIN_FILENO);
 259                 if (chan) {
 260                         while(g_io_channel_read_line(chan, &line, NULL, NULL,
 261                                                 &e) == G_IO_STATUS_NORMAL) {
 262                                 g_string_append(code, line);
 263                                 g_free(line);
 264                         }
 265                         webkit_web_view_load_html_string(c->view, code->str,
 266                                         "file://.");
 267                         g_io_channel_shutdown(chan, FALSE, NULL);
 268                 }
 269         }
 270         else {
 271                 g_string_prepend(uri, "file://");
 272                 loaduri(c, uri->str);
 273         }
 274
 275 }
 276
 277 void
 278 loaduri(const Client *c, const gchar *uri) {
 279         GString* u = g_string_new(uri);
 280         if(g_strrstr(u->str, ":") == NULL)
 281                 g_string_prepend(u, "http://");
 282         webkit_web_view_load_uri(c->view, u->str);
 283         g_string_free(u, TRUE);
 284 }
 285
 286 Client *
 287 newclient(void) {
 288         Client *c;
 289         if(!(c = calloc(1, sizeof(Client))))
 290                 die("Cannot malloc!\n");
 291         /* Window */
 292         if(embed) {
 293                 c->win = gtk_plug_new(0);
 294         }
 295         else {
 296                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 297                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 298         }
 299         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 300         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 301         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 302
 303         /* VBox */
 304         c->vbox = gtk_vbox_new(FALSE, 0);
 305
 306         /* scrolled window */
 307         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 308         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 309                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 310
 311         /* webview */
 312         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 313         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 314         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 315         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 316         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 317         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(newwindow), c);
 318         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 319         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(download), c);
 320
 321         /* urlbar */
 322         c->urlbar = gtk_entry_new();
 323         gtk_entry_set_has_frame(GTK_ENTRY(c->urlbar), FALSE);
 324
 325         /* searchbar */
 326         c->searchbar = gtk_entry_new();
 327         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 328
 329         /* Arranging */
 330         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 331         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 332         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 333         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 334         gtk_container_add(GTK_CONTAINER(c->vbox), c->urlbar);
 335
 336         /* Setup */
 337         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->urlbar, FALSE, FALSE, 0, GTK_PACK_START);
 338         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 339         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 340         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 341         gtk_widget_hide_all(c->searchbar);
 342         gtk_widget_hide_all(c->urlbar);
 343         gtk_widget_show(c->vbox);
 344         gtk_widget_show(c->scroll);
 345         gtk_widget_show(GTK_WIDGET(c->view));
 346         gtk_widget_show(c->win);
 347         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 348         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 349         c->next = clients;
 350         clients = c;
 351         if(showxid)
 352                 printf("%u\n", (unsigned int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 353         return c;
 354 }
 355
 356 WebKitWebView *
 357 newwindow(WebKitWebView  *v, WebKitWebFrame *f, gpointer d) {
 358         Client *c = newclient();
 359         return c->view;
 360 }
 361
 362 void
 363 progresschange(WebKitWebView* view, gint p, gpointer d) {
 364         Client *c = (Client *)d;
 365
 366         c->progress = p;
 367         updatetitle(c);
 368 }
 369
 370 GdkFilterReturn
 371 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 372         XPropertyEvent *ev;
 373         Client *c = (Client *)d;
 374         Atom adummy;
 375         int idummy;
 376         unsigned long ldummy;
 377         unsigned char *buf = NULL;
 378         if(((XEvent *)e)->type == PropertyNotify) {
 379                 ev = &((XEvent *)e)->xproperty;
 380                 if(ignore_once == FALSE && ev->atom == urlprop && ev->state == PropertyNewValue) {
 381                         XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
 382                                 &adummy, &idummy, &ldummy, &ldummy, &buf);
 383                         loaduri(c, (gchar *)buf);
 384                         XFree(buf);
 385                         return GDK_FILTER_REMOVE;
 386                 }
 387         }
 388         return GDK_FILTER_CONTINUE;
 389 }
 390
 391 void setup(void) {
 392         dpy = GDK_DISPLAY();
 393         urlprop = XInternAtom(dpy, "_SURF_URL", False);
 394 }
 395
 396 void
 397 showsearch(Client *c) {
 398         hideurl(c);
 399         gtk_widget_show(c->searchbar);
 400         gtk_widget_grab_focus(c->searchbar);
 401 }
 402
 403 void
 404 showurl(Client *c) {
 405         gchar *uri;
 406
 407         hidesearch(c);
 408         uri = geturi(c);
 409         gtk_entry_set_text(GTK_ENTRY(c->urlbar), uri);
 410         gtk_widget_show(c->urlbar);
 411         gtk_widget_grab_focus(c->urlbar);
 412 }
 413
 414 void
 415 titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, gpointer d) {
 416         Client *c = (Client *)d;
 417
 418         if(c->title)
 419                 g_free(c->title);
 420         c->title = g_strdup(t);
 421         updatetitle(c);
 422 }
 423
 424 void
 425 updatetitle(Client *c) {
 426         char t[512];
 427         if(c->progress == 100)
 428                 snprintf(t, LENGTH(t), "%s", c->title);
 429         else
 430                 snprintf(t, LENGTH(t), "%s [%i%%]", c->title, c->progress);
 431         gtk_window_set_title(GTK_WINDOW(c->win), t);
 432 }
 433
 434 int main(int argc, char *argv[]) {
 435         gchar *uri = NULL, *file = NULL;
 436         SoupSession *s;
 437         Client *c;
 438         int o;
 439         const gchar *home, *filename;
 440
 441         gtk_init(NULL, NULL);
 442         if (!g_thread_supported())
 443                 g_thread_init(NULL);
 444         setup();
 445         while((o = getopt(argc, argv, "vhxeu:f:")) != -1)
 446                 switch(o) {
 447                 case 'x':
 448                         showxid = TRUE;
 449                         break;
 450                 case 'e':
 451                         showxid = TRUE;
 452                         embed = TRUE;
 453                         break;
 454                 case 'u':
 455                         if(!(uri = optarg))
 456                                 goto argerr;
 457                         c = newclient();
 458                         loaduri(c, uri);
 459                         updatetitle(c);
 460                         break;
 461                 case 'f':
 462                         if(!(file = optarg))
 463                                 goto argerr;
 464                         c = newclient();
 465                         loadfile(c, file);
 466                         updatetitle(c);
 467                         break;
 468                 case 'v':
 469                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 470                         break;
 471                 argerr:
 472                 default:
 473                         puts("surf - simple browser");
 474                         die("usage: surf [-e] [-x] [-u uri] [-f file]\n");
 475                         return EXIT_FAILURE;
 476                 }
 477         if(optind != argc)
 478                 goto argerr;
 479         if(!clients)
 480                 newclient();
 481
 482         /* cookie persistance */
 483         s = webkit_get_default_session();
 484         home = g_get_home_dir();
 485         filename = g_build_filename(home, ".surf-cookies", NULL);
 486         cookiejar = soup_cookie_jar_text_new(filename, FALSE);
 487         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 488
 489         gtk_main();
 490         cleanup();
 491         return EXIT_SUCCESS;
 492 }