surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <signal.h>
   6 #include <X11/X.h>
   7 #include <X11/Xatom.h>
   8 #include <gtk/gtk.h>
   9 #include <gdk/gdkx.h>
  10 #include <gdk/gdk.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <unistd.h>
  16 #include <stdlib.h>
  17 #include <stdio.h>
  18 #include <webkit/webkit.h>
  19 #include <glib/gstdio.h>
  20 #include <JavaScriptCore/JavaScript.h>
  21 #include <sys/file.h>
  22
  23 #define LENGTH(x)               (sizeof x / sizeof x[0])
  24 #define CLEANMASK(mask)         (mask & ~(GDK_MOD2_MASK))
  25
  26 typedef union Arg Arg;
  27 union Arg {
  28         gboolean b;
  29         gint i;
  30         const void *v;
  31 };
  32
  33 typedef struct Client {
  34         GtkWidget *win, *scroll, *vbox, *indicator;
  35         GtkWidget **items;
  36         WebKitWebView *view;
  37         WebKitDownload *download;
  38         char *title, *linkhover;
  39         const char *uri, *needle;
  40         gint progress;
  41         struct Client *next;
  42         gboolean zoomed;
  43 } Client;
  44
  45 typedef struct {
  46         char *label;
  47         void (*func)(Client *c, const Arg *arg);
  48         const Arg arg;
  49 } Item;
  50
  51 typedef struct {
  52         guint mod;
  53         guint keyval;
  54         void (*func)(Client *c, const Arg *arg);
  55         const Arg arg;
  56 } Key;
  57
  58 static Display *dpy;
  59 static Atom uriprop, findprop;
  60 static Client *clients = NULL;
  61 static GdkNativeWindow embed = 0;
  62 static gboolean showxid = FALSE;
  63 static int ignorexprop = 0;
  64 static char winid[64];
  65 static char *progname;
  66 static gboolean loadimage = 1, plugin = 1, script = 1;
  67
  68 static char *buildpath(const char *path);
  69 static void cleanup(void);
  70 static void clipboard(Client *c, const Arg *arg);
  71 static void context(WebKitWebView *v, GtkMenu *m, Client *c);
  72 static char *copystr(char **str, const char *src);
  73 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  74 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c);
  75 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  76 static void destroyclient(Client *c);
  77 static void destroywin(GtkWidget* w, Client *c);
  78 static void die(char *str);
  79 static void download(Client *c, const Arg *arg);
  80 static void drawindicator(Client *c);
  81 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  82 static void find(Client *c, const Arg *arg);
  83 static const char *getatom(Client *c, Atom a);
  84 static const char *getcookies(SoupURI *uri);
  85 static char *geturi(Client *c);
  86 void gotheaders(SoupMessage *msg, gpointer user_data);
  87 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  88 static void itemclick(GtkMenuItem *mi, Client *c);
  89 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  90 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  91 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
  92 static void loaduri(Client *c, const Arg *arg);
  93 static void navigate(Client *c, const Arg *arg);
  94 static Client *newclient(void);
  95 static void newwindow(Client *c, const Arg *arg);
  96 static void newrequest(SoupSession *s, SoupMessage *msg, gpointer v);
  97 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
  98 static void print(Client *c, const Arg *arg);
  99 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 100 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 101 static void reload(Client *c, const Arg *arg);
 102 static void resize(GtkWidget *w, GtkAllocation *a, Client *c);
 103 static void scroll(Client *c, const Arg *arg);
 104 static void setatom(Client *c, Atom a, const char *v);
 105 static void setcookie(SoupCookie *c);
 106 static void setup(void);
 107 static void sigchld(int unused);
 108 static void source(Client *c, const Arg *arg);
 109 static void spawn(Client *c, const Arg *arg);
 110 static void stop(Client *c, const Arg *arg);
 111 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 112 static void update(Client *c);
 113 static void updatedownload(WebKitDownload *o, GParamSpec *pspec, Client *c);
 114 static void updatewinid(Client *c);
 115 static void usage(void);
 116 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 117 static void zoom(Client *c, const Arg *arg);
 118
 119 /* configuration, allows nested code to access above variables */
 120 #include "config.h"
 121
 122 char *
 123 buildpath(const char *path) {
 124         char *apath, *p;
 125         FILE *f;
 126
 127         /* creating directory */
 128         if(path[0] == '/')
 129                 apath = g_strdup(path);
 130         else
 131                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 132         if((p = strrchr(apath, '/'))) {
 133                 *p = '\0';
 134                 g_mkdir_with_parents(apath, 0755);
 135                 *p = '/';
 136         }
 137         /* creating file (gives error when apath ends with "/") */
 138         if((f = g_fopen(apath, "a")))
 139                 fclose(f);
 140         return apath;
 141 }
 142
 143 void
 144 cleanup(void) {
 145         while(clients)
 146                 destroyclient(clients);
 147         g_free(cookiefile);
 148         g_free(dldir);
 149         g_free(scriptfile);
 150         g_free(stylefile);
 151 }
 152
 153 void
 154 runscript(WebKitWebFrame *frame, JSContextRef js) {
 155         JSStringRef jsscript;
 156         char *script;
 157         JSValueRef exception = NULL;
 158         GError *error;
 159
 160         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 161                 jsscript = JSStringCreateWithUTF8CString(script);
 162                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 163         }
 164 }
 165
 166 void
 167 clipboard(Client *c, const Arg *arg) {
 168         gboolean paste = *(gboolean *)arg;
 169
 170         if(paste)
 171                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 172         else
 173                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 174 }
 175
 176 void
 177 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 178         int i;
 179         GtkContainer *parent;
 180
 181         gtk_widget_hide_all(GTK_WIDGET(m));
 182         gtk_widget_show(GTK_WIDGET(m));
 183         for(i = 0; i < LENGTH(items); i++) {
 184                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 185                 if(parent)
 186                         gtk_container_remove(parent, c->items[i]);
 187                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 188                 gtk_widget_show(c->items[i]);
 189         }
 190 }
 191
 192 char *
 193 copystr(char **str, const char *src) {
 194         char *tmp;
 195         tmp = g_strdup(src);
 196
 197         if(str && *str) {
 198                 g_free(*str);
 199                 *str = tmp;
 200         }
 201         return tmp;
 202 }
 203
 204 WebKitWebView *
 205 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 206         Client *n = newclient();
 207         return n->view;
 208 }
 209
 210 gboolean
 211 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 212         if(!webkit_web_view_can_show_mime_type(v, m)) {
 213                 webkit_web_policy_decision_download(p);
 214                 return TRUE;
 215         }
 216         return FALSE;
 217 }
 218
 219 gboolean
 220 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 221         Arg arg;
 222
 223         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 224                 webkit_web_policy_decision_ignore(p);
 225                 arg.v = (void *)webkit_network_request_get_uri(r);
 226                 newwindow(NULL, &arg);
 227                 return TRUE;
 228         }
 229         return FALSE;
 230 }
 231
 232 void
 233 destroyclient(Client *c) {
 234         int i;
 235         Client *p;
 236
 237         gtk_widget_destroy(c->indicator);
 238         gtk_widget_destroy(GTK_WIDGET(c->view));
 239         gtk_widget_destroy(c->scroll);
 240         gtk_widget_destroy(c->vbox);
 241         gtk_widget_destroy(c->win);
 242         for(i = 0; i < LENGTH(items); i++)
 243                 gtk_widget_destroy(c->items[i]);
 244         free(c->items);
 245
 246         for(p = clients; p && p->next != c; p = p->next);
 247         if(p)
 248                 p->next = c->next;
 249         else
 250                 clients = c->next;
 251         free(c);
 252         if(clients == NULL)
 253                 gtk_main_quit();
 254 }
 255
 256 void
 257 destroywin(GtkWidget* w, Client *c) {
 258         destroyclient(c);
 259 }
 260
 261 void
 262 die(char *str) {
 263         fputs(str, stderr);
 264         exit(EXIT_FAILURE);
 265 }
 266
 267 void
 268 download(Client *c, const Arg *arg) {
 269         char *uri;
 270         WebKitNetworkRequest *r;
 271         WebKitDownload *dl;
 272
 273         if(arg->v)
 274                 uri = (char *)arg->v;
 275         else
 276                 uri = c->linkhover ? c->linkhover : geturi(c);
 277         r = webkit_network_request_new(uri);
 278         dl = webkit_download_new(r);
 279         initdownload(c->view, dl, c);
 280         webkit_download_start(c->download);
 281 }
 282
 283 void
 284 drawindicator(Client *c) {
 285         gint width;
 286         const char *uri;
 287         GtkWidget *w;
 288         GdkGC *gc;
 289         GdkColor fg;
 290
 291         uri = getatom(c, uriprop);
 292         w = c->indicator;
 293         width = c->progress * w->allocation.width / 100;
 294         gc = gdk_gc_new(w->window);
 295         gdk_color_parse(strstr(uri, "https://") == uri ?
 296                         progress_trust : progress, &fg);
 297         gdk_gc_set_rgb_fg_color(gc, &fg);
 298         gdk_draw_rectangle(w->window,
 299                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 300                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 301         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 302                         w->allocation.height);
 303         g_object_unref(gc);
 304 }
 305
 306 gboolean
 307 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 308         drawindicator(c);
 309         return TRUE;
 310 }
 311
 312 void
 313 find(Client *c, const Arg *arg) {
 314         const char *s;
 315
 316         s = getatom(c, findprop);
 317         gboolean forward = *(gboolean *)arg;
 318         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 319 }
 320
 321 const char *
 322 getcookies(SoupURI *uri) {
 323         const char *c;
 324         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, TRUE);
 325         c = soup_cookie_jar_get_cookies(j, uri, TRUE);
 326         g_object_unref(j);
 327         return c;
 328 }
 329
 330 const char *
 331 getatom(Client *c, Atom a) {
 332         static char buf[BUFSIZ];
 333         Atom adummy;
 334         int idummy;
 335         unsigned long ldummy;
 336         unsigned char *p = NULL;
 337
 338         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 339                         a, 0L, BUFSIZ, False, XA_STRING,
 340                         &adummy, &idummy, &ldummy, &ldummy, &p);
 341         if(p)
 342                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 343         else
 344                 buf[0] = '\0';
 345         XFree(p);
 346         return buf;
 347 }
 348
 349 char *
 350 geturi(Client *c) {
 351         char *uri;
 352
 353         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 354                 uri = "about:blank";
 355         return uri;
 356 }
 357
 358 void
 359 gotheaders(SoupMessage *msg, gpointer v) {
 360         SoupURI *uri;
 361         GSList *l, *p;
 362
 363         uri = soup_message_get_uri(msg);
 364         for(p = l = soup_cookies_from_response(msg); p;
 365                 p = g_slist_next(p))  {
 366                 setcookie((SoupCookie *)p->data);
 367         }
 368         soup_cookies_free(l);
 369 }
 370
 371 gboolean
 372 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 373         const char *filename;
 374         char *uri;
 375         WebKitWebBackForwardList *h;
 376         WebKitWebHistoryItem *i;
 377
 378         c->download = o;
 379         filename = webkit_download_get_suggested_filename(o);
 380         if(!strcmp("", filename))
 381                 filename = "index.html";
 382         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 383         webkit_download_set_destination_uri(c->download, uri);
 384         c->progress = 0;
 385         h = webkit_web_view_get_back_forward_list(c->view);
 386         i = webkit_web_history_item_new_with_data(webkit_download_get_uri(c->download), filename);
 387         webkit_web_back_forward_list_add_item(h, i);
 388         g_signal_connect(c->download, "notify::progress", G_CALLBACK(updatedownload), c);
 389         g_signal_connect(c->download, "notify::status", G_CALLBACK(updatedownload), c);
 390
 391         c->title = copystr(&c->title, filename);
 392         update(c);
 393         return TRUE;
 394 }
 395
 396 void
 397 itemclick(GtkMenuItem *mi, Client *c) {
 398         int i;
 399         const char *label;
 400
 401         label = gtk_menu_item_get_label(mi);
 402         for(i = 0; i < LENGTH(items); i++)
 403                 if(!strcmp(items[i].label, label))
 404                         items[i].func(c, &(items[i].arg));
 405 }
 406
 407 gboolean
 408 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 409         guint i;
 410         gboolean processed = FALSE;
 411
 412         updatewinid(c);
 413         for(i = 0; i < LENGTH(keys); i++) {
 414                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 415                                 && CLEANMASK(ev->state) == keys[i].mod
 416                                 && keys[i].func) {
 417                         keys[i].func(c, &(keys[i].arg));
 418                         processed = TRUE;
 419                 }
 420         }
 421         return processed;
 422 }
 423
 424 void
 425 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 426         if(l)
 427                 c->linkhover = copystr(&c->linkhover, l);
 428         else if(c->linkhover) {
 429                 free(c->linkhover);
 430                 c->linkhover = NULL;
 431         }
 432         update(c);
 433 }
 434
 435 void
 436 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 437         switch(webkit_web_view_get_load_status (c->view)) {
 438         case WEBKIT_LOAD_COMMITTED:
 439         if(c->download)
 440                 stop(c, NULL);
 441         setatom(c, uriprop, geturi(c));
 442                 break;
 443         case WEBKIT_LOAD_FINISHED:
 444                 c->progress = 0;
 445                 update(c);
 446                 break;
 447         default:
 448                 break;
 449         }
 450 }
 451
 452 void
 453 loaduri(Client *c, const Arg *arg) {
 454         char *u;
 455         const char *uri = (char *)arg->v;
 456         Arg a = { .b = FALSE };
 457
 458         if(strcmp(uri, "") == 0)
 459                 return;
 460         u = g_strrstr(uri, "://") ? g_strdup(uri)
 461                 : g_strdup_printf("http://%s", uri);
 462         /* prevents endless loop */
 463         if(c->uri && strcmp(u, c->uri) == 0) {
 464                 reload(c, &a);
 465         }
 466         else {
 467                 webkit_web_view_load_uri(c->view, u);
 468                 c->progress = 0;
 469                 c->title = copystr(&c->title, u);
 470                 g_free(u);
 471                 update(c);
 472         }
 473 }
 474
 475 void
 476 navigate(Client *c, const Arg *arg) {
 477         int steps = *(int *)arg;
 478         webkit_web_view_go_back_or_forward(c->view, steps);
 479 }
 480
 481 Client *
 482 newclient(void) {
 483         int i;
 484         Client *c;
 485         WebKitWebSettings *settings;
 486         WebKitWebFrame *frame;
 487         GdkGeometry hints = { 1, 1 };
 488         char *uri, *ua;
 489
 490         if(!(c = calloc(1, sizeof(Client))))
 491                 die("Cannot malloc!\n");
 492         /* Window */
 493         if(embed) {
 494                 c->win = gtk_plug_new(embed);
 495         }
 496         else {
 497                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 498                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 499                  * is always correct, so we should still call this function.
 500                  * But when doing so, we *must* differentiate between a
 501                  * WM_CLASS and a resource on the window.  By convention, the
 502                  * window class (WM_CLASS) is capped, while the resource is in
 503                  * lowercase.   Both these values come as a pair.
 504                  */
 505                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 506
 507                 /* TA:  20091214:  And set the role here as well -- so that
 508                  * sessions can pick this up.
 509                  */
 510                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 511         }
 512         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 513         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 514         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 515         g_signal_connect(G_OBJECT(c->win), "size-allocate", G_CALLBACK(resize), c);
 516
 517         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 518                 die("Cannot malloc!\n");
 519
 520         /* contextmenu */
 521         for(i = 0; i < LENGTH(items); i++) {
 522                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 523                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 524                                 G_CALLBACK(itemclick), c);
 525         }
 526
 527         /* VBox */
 528         c->vbox = gtk_vbox_new(FALSE, 0);
 529
 530         /* Scrolled Window */
 531         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 532         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 533                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 534
 535         /* Webview */
 536         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 537         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 538         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 539         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 540         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 541         g_signal_connect(G_OBJECT(c->view), "mime-type-policy-decision-requested", G_CALLBACK(decidedownload), c);
 542         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 543         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 544         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 545         g_signal_connect(G_OBJECT(c->view), "notify::load-status", G_CALLBACK(loadstatuschange), c);
 546         g_signal_connect(G_OBJECT(c->view), "notify::progress", G_CALLBACK(progresschange), c);
 547
 548         /* Indicator */
 549         c->indicator = gtk_drawing_area_new();
 550         gtk_widget_set_size_request(c->indicator, 0, 2);
 551         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 552                         G_CALLBACK (exposeindicator), c);
 553
 554         /* Arranging */
 555         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 556         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 557         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 558         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 559
 560         /* Setup */
 561         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 562         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 563         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 564         gtk_widget_show(c->vbox);
 565         gtk_widget_show(c->indicator);
 566         gtk_widget_show(c->scroll);
 567         gtk_widget_show(GTK_WIDGET(c->view));
 568         gtk_widget_show(c->win);
 569         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 570         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 571         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 572         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 573         frame = webkit_web_view_get_main_frame(c->view);
 574         runscript(frame, webkit_web_frame_get_global_context(frame));
 575         settings = webkit_web_view_get_settings(c->view);
 576         if(!(ua = getenv("SURF_USERAGENT")))
 577                 ua = useragent;
 578         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 579         uri = g_strconcat("file://", stylefile, NULL);
 580         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 581         g_object_set(G_OBJECT(settings), "auto-load-images", loadimage, NULL);
 582         g_object_set(G_OBJECT(settings), "enable-plugins", plugin, NULL);
 583         g_object_set(G_OBJECT(settings), "enable-scripts", script, NULL);
 584         g_free(uri);
 585         setatom(c, findprop, "");
 586         setatom(c, uriprop, "");
 587         if(NOBACKGROUND)
 588                 webkit_web_view_set_transparent(c->view, TRUE);
 589
 590         c->download = NULL;
 591         c->title = NULL;
 592         c->next = clients;
 593         clients = c;
 594         if(showxid) {
 595                 gdk_display_sync(gtk_widget_get_display(c->win));
 596                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 597                 fflush(NULL);
 598         }
 599         return c;
 600 }
 601
 602 void
 603 newrequest(SoupSession *s, SoupMessage *msg, gpointer v) {
 604         SoupMessageHeaders *h = msg->request_headers;
 605         SoupURI *uri;
 606         const char *c;
 607
 608         soup_message_headers_remove(h, "Cookie");
 609         uri = soup_message_get_uri(msg);
 610         if((c = getcookies(uri)))
 611                 soup_message_headers_append(h, "Cookie", c);
 612         g_signal_connect_after(G_OBJECT(msg), "got-headers", G_CALLBACK(gotheaders), NULL);
 613 }
 614
 615 void
 616 newwindow(Client *c, const Arg *arg) {
 617         guint i = 0;
 618         const char *cmd[10], *uri;
 619         const Arg a = { .v = (void *)cmd };
 620         char tmp[64];
 621
 622         cmd[i++] = progname;
 623         if(embed) {
 624                 cmd[i++] = "-e";
 625                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 626                 cmd[i++] = tmp;
 627         }
 628         if(!script)
 629                 cmd[i++] = "-s";
 630         if(!plugin)
 631                 cmd[i++] = "-p";
 632         if(!loadimage)
 633                 cmd[i++] = "-i";
 634         if(showxid)
 635                 cmd[i++] = "-x";
 636         cmd[i++] = "--";
 637         uri = arg->v ? (char *)arg->v : c->linkhover;
 638         if(uri)
 639                 cmd[i++] = uri;
 640         cmd[i++] = NULL;
 641         spawn(NULL, &a);
 642 }
 643
 644 void
 645 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 646         Arg arg = {.v = text };
 647         if(text != NULL)
 648                 loaduri((Client *) d, &arg);
 649 }
 650
 651 void
 652 print(Client *c, const Arg *arg) {
 653         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 654 }
 655
 656 GdkFilterReturn
 657 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 658         Client *c = (Client *)d;
 659         XPropertyEvent *ev;
 660         Arg arg;
 661
 662         if(((XEvent *)e)->type == PropertyNotify) {
 663                 ev = &((XEvent *)e)->xproperty;
 664                 if(ignorexprop)
 665                         ignorexprop--;
 666                 else if(ev->state == PropertyNewValue) {
 667                         if(ev->atom == uriprop) {
 668                                 arg.v = getatom(c, uriprop);
 669                                 loaduri(c, &arg);
 670                         }
 671                         else if(ev->atom == findprop) {
 672                                 arg.b = TRUE;
 673                                 find(c, &arg);
 674                         }
 675                         return GDK_FILTER_REMOVE;
 676                 }
 677         }
 678         return GDK_FILTER_CONTINUE;
 679 }
 680
 681 void
 682 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 683         c->progress = webkit_web_view_get_progress(c->view) * 100;
 684         update(c);
 685 }
 686
 687 void
 688 reload(Client *c, const Arg *arg) {
 689         gboolean nocache = *(gboolean *)arg;
 690         if(nocache)
 691                  webkit_web_view_reload_bypass_cache(c->view);
 692         else
 693                  webkit_web_view_reload(c->view);
 694 }
 695
 696 void
 697 resize(GtkWidget *w, GtkAllocation *a, Client *c) {
 698         double zoom;
 699
 700         if(c->zoomed)
 701                 return;
 702         zoom = webkit_web_view_get_zoom_level(c->view);
 703         if(a->width * a->height < 300 * 400 && zoom != 0.2)
 704                 webkit_web_view_set_zoom_level(c->view, 0.2);
 705         else if(zoom != 1.0)
 706                 webkit_web_view_set_zoom_level(c->view, 1.0);
 707 }
 708
 709 void
 710 scroll(Client *c, const Arg *arg) {
 711         gdouble v;
 712         GtkAdjustment *a;
 713
 714         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 715         v = gtk_adjustment_get_value(a);
 716         v += gtk_adjustment_get_step_increment(a) * arg->i;
 717         v = MAX(v, 0.0);
 718         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 719         gtk_adjustment_set_value(a, v);
 720 }
 721
 722 void
 723 setcookie(SoupCookie *c) {
 724         int lock;
 725
 726         lock = open(cookiefile, 0);
 727         flock(lock, LOCK_EX);
 728         SoupDate *e;
 729         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, FALSE);
 730         c = soup_cookie_copy(c);
 731         if(c->expires == NULL && sessiontime) {
 732                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 733                 soup_cookie_set_expires(c, e);
 734         }
 735         soup_cookie_jar_add_cookie(j, c);
 736         g_object_unref(j);
 737         flock(lock, LOCK_UN);
 738         close(lock);
 739 }
 740
 741 void
 742 setatom(Client *c, Atom a, const char *v) {
 743         XSync(dpy, False);
 744         ignorexprop++;
 745         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), a,
 746                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 747                         strlen(v) + 1);
 748 }
 749
 750 void
 751 setup(void) {
 752         char *proxy;
 753         char *new_proxy;
 754         SoupURI *puri;
 755         SoupSession *s;
 756
 757         /* clean up any zombies immediately */
 758         sigchld(0);
 759         gtk_init(NULL, NULL);
 760         if (!g_thread_supported())
 761                 g_thread_init(NULL);
 762
 763         dpy = GDK_DISPLAY();
 764         s = webkit_get_default_session();
 765         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 766         findprop = XInternAtom(dpy, "_SURF_FIND", False);
 767
 768         /* dirs and files */
 769         cookiefile = buildpath(cookiefile);
 770         dldir = buildpath(dldir);
 771         scriptfile = buildpath(scriptfile);
 772         stylefile = buildpath(stylefile);
 773
 774         /* request handler */
 775         s = webkit_get_default_session();
 776         soup_session_remove_feature_by_type(s, soup_cookie_get_type());
 777         soup_session_remove_feature_by_type(s, soup_cookie_jar_get_type());
 778         g_signal_connect_after(G_OBJECT(s), "request-started", G_CALLBACK(newrequest), NULL);
 779
 780         /* proxy */
 781         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 782                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 783                         g_strdup_printf("http://%s", proxy);
 784
 785                 puri = soup_uri_new(new_proxy);
 786                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 787                 soup_uri_free(puri);
 788                 g_free(new_proxy);
 789         }
 790 }
 791
 792 void
 793 sigchld(int unused) {
 794         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 795                 die("Can't install SIGCHLD handler");
 796         while(0 < waitpid(-1, NULL, WNOHANG));
 797 }
 798
 799 void
 800 source(Client *c, const Arg *arg) {
 801         Arg a = { .b = FALSE };
 802         gboolean s;
 803
 804         s = webkit_web_view_get_view_source_mode(c->view);
 805         webkit_web_view_set_view_source_mode(c->view, !s);
 806         reload(c, &a);
 807 }
 808
 809 void
 810 spawn(Client *c, const Arg *arg) {
 811         if(fork() == 0) {
 812                 if(dpy)
 813                         close(ConnectionNumber(dpy));
 814                 setsid();
 815                 execvp(((char **)arg->v)[0], (char **)arg->v);
 816                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 817                 perror(" failed");
 818                 exit(0);
 819         }
 820 }
 821
 822 void
 823 stop(Client *c, const Arg *arg) {
 824         if(c->download)
 825                 webkit_download_cancel(c->download);
 826         else
 827                 webkit_web_view_stop_loading(c->view);
 828         c->download = NULL;
 829 }
 830
 831 void
 832 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 833         c->title = copystr(&c->title, t);
 834         update(c);
 835 }
 836
 837 void
 838 update(Client *c) {
 839         char *t;
 840
 841         if(c->progress != 100)
 842                 t = g_strdup_printf("[%i%%] %s", c->progress, c->title);
 843         else if(c->linkhover)
 844                 t = g_strdup(c->linkhover);
 845         else
 846                 t = g_strdup(c->title);
 847         drawindicator(c);
 848         gtk_window_set_title(GTK_WINDOW(c->win), t);
 849         g_free(t);
 850 }
 851
 852 void
 853 updatedownload(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 854         WebKitDownloadStatus status;
 855
 856         status = webkit_download_get_status(c->download);
 857         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 858                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 859         }
 860         else
 861                 stop(c, NULL);
 862         update(c);
 863 }
 864
 865 void
 866 updatewinid(Client *c) {
 867         snprintf(winid, LENGTH(winid), "%u",
 868                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 869 }
 870
 871 void
 872 usage(void) {
 873         fputs("surf - simple browser\n", stderr);
 874         die("usage: surf [-e xid] [-i] [-p] [-s] [-v] [-x] [uri]\n");
 875 }
 876
 877 void
 878 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 879         runscript(frame, js);
 880 }
 881
 882 void
 883 zoom(Client *c, const Arg *arg) {
 884         c->zoomed = TRUE;
 885         if(arg->i < 0)          /* zoom out */
 886                 webkit_web_view_zoom_out(c->view);
 887         else if(arg->i > 0)     /* zoom in */
 888                 webkit_web_view_zoom_in(c->view);
 889         else {                  /* reset */
 890                 c->zoomed = FALSE;
 891                 webkit_web_view_set_zoom_level(c->view, 1.0);
 892         }
 893 }
 894
 895 int
 896 main(int argc, char *argv[]) {
 897         int i;
 898         Arg arg;
 899
 900         progname = argv[0];
 901         /* command line args */
 902         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-' &&
 903                         argv[i][1] != '\0' && argv[i][2] == '\0'; i++) {
 904                 if(!strcmp(argv[i], "--")) {
 905                         i++;
 906                         break;
 907                 }
 908                 switch(argv[i][1]) {
 909                 case 'e':
 910                         if(++i < argc)
 911                                 embed = atoi(argv[i]);
 912                         else
 913                                 usage();
 914                         break;
 915                 case 'i':
 916                         loadimage = 0;
 917                         break;
 918                 case 'p':
 919                         plugin = 0;
 920                         break;
 921                 case 's':
 922                         script = 0;
 923                         break;
 924                 case 'x':
 925                         showxid = TRUE;
 926                         break;
 927                 case 'v':
 928                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 929                 default:
 930                         usage();
 931                 }
 932         }
 933         if(i < argc)
 934                 arg.v = argv[i];
 935         setup();
 936         newclient();
 937         if(arg.v)
 938                 loaduri(clients, &arg);
 939         gtk_main();
 940         cleanup();
 941         return EXIT_SUCCESS;
 942 }