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