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