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 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(WebKitDownload *o, GParamSpec *pspec, Client *c);
  80 static void drawindicator(Client *c);
  81 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  82 static const char *getatom(Client *c, Atom a);
  83 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  84 static void itemclick(GtkMenuItem *mi, Client *c);
  85 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  86 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  87 static void loadcommit(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  88 static void loadstart(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  89 static void loaduri(Client *c, const Arg *arg);
  90 static void navigate(Client *c, const Arg *arg);
  91 static Client *newclient(void);
  92 static void newwindow(Client *c, const Arg *arg);
  93 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  94 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
  95 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
  96 static void print(Client *c, const Arg *arg);
  97 static void progresschange(WebKitWebView *v, gint p, Client *c);
  98 static void reloadcookies();
  99 static void reload(Client *c, const Arg *arg);
 100 static void resize(GtkWidget *w, GtkAllocation *a, Client *c);
 101 static void sigchld(int unused);
 102 static void setatom(Client *c, Atom a, const char *v);
 103 static void setup(void);
 104 static void spawn(Client *c, const Arg *arg);
 105 static void scroll(Client *c, const Arg *arg);
 106 static void find(Client *c, const Arg *arg);
 107 static void source(Client *c, const Arg *arg);
 108 static void stop(Client *c, const Arg *arg);
 109 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 110 static void usage(void);
 111 static void update(Client *c);
 112 static void updatewinid(Client *c);
 113 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 114 static void zoom(Client *c, const Arg *arg);
 115
 116 /* configuration, allows nested code to access above variables */
 117 #include "config.h"
 118
 119 char *
 120 buildpath(const char *path) {
 121         char *apath, *p;
 122         FILE *f;
 123
 124         /* creating directory */
 125         if(path[0] == '/')
 126                 apath = g_strdup(path);
 127         else
 128                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 129         if((p = strrchr(apath, '/'))) {
 130                 *p = '\0';
 131                 g_mkdir_with_parents(apath, 0755);
 132                 *p = '/';
 133         }
 134         /* creating file (gives error when apath ends with "/") */
 135         if((f = g_fopen(apath, "a")))
 136                 fclose(f);
 137         return apath;
 138 }
 139
 140 void
 141 changecookie(SoupCookieJar *j, SoupCookie *oc, SoupCookie *c, gpointer p) {
 142         SoupDate *e;
 143         SoupCookieJar *jar;
 144
 145         if(lockcookie)
 146                 return;
 147         if(c && c->expires == NULL) {
 148                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 149                 c = soup_cookie_copy(c);
 150                 soup_cookie_set_expires(c, e);
 151         }
 152
 153         jar = soup_cookie_jar_text_new(cookiefile, FALSE);
 154         if(c)
 155                 soup_cookie_jar_add_cookie(jar, soup_cookie_copy(c));
 156         else
 157                 soup_cookie_jar_delete_cookie(jar, oc);
 158         g_object_unref(jar);
 159 }
 160
 161 void
 162 cleanup(void) {
 163         while(clients)
 164                 destroyclient(clients);
 165         g_free(cookiefile);
 166         g_free(dldir);
 167         g_free(scriptfile);
 168         g_free(stylefile);
 169 }
 170
 171 void
 172 clipboard(Client *c, const Arg *arg) {
 173         gboolean paste = *(gboolean *)arg;
 174
 175         if(paste)
 176                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 177         else
 178                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
 179 }
 180
 181 void
 182 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 183         int i;
 184         GtkContainer *parent;
 185
 186         gtk_widget_hide_all(GTK_WIDGET(m));
 187         gtk_widget_show(GTK_WIDGET(m));
 188         for(i = 0; i < LENGTH(items); i++) {
 189                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 190                 if(parent)
 191                         gtk_container_remove(parent, c->items[i]);
 192                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 193                 gtk_widget_show(c->items[i]);
 194         }
 195 }
 196
 197 char *
 198 copystr(char **str, const char *src) {
 199         char *tmp;
 200         tmp = g_strdup(src);
 201
 202         if(str && *str) {
 203                 g_free(*str);
 204                 *str = tmp;
 205         }
 206         return tmp;
 207 }
 208
 209 void
 210 destroyclient(Client *c) {
 211         int i;
 212         Client *p;
 213
 214         gtk_widget_destroy(GTK_WIDGET(c->view));
 215         gtk_widget_destroy(c->scroll);
 216         gtk_widget_destroy(c->vbox);
 217         gtk_widget_destroy(c->indicator);
 218         gtk_widget_destroy(c->win);
 219         for(i = 0; i < LENGTH(items); i++)
 220                 gtk_widget_destroy(c->items[i]);
 221         free(c->items);
 222
 223         for(p = clients; p && p->next != c; p = p->next);
 224         if(p)
 225                 p->next = c->next;
 226         else
 227                 clients = c->next;
 228         free(c);
 229         if(clients == NULL)
 230                 gtk_main_quit();
 231 }
 232
 233 gboolean
 234 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 235         Arg arg;
 236
 237         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 238                 webkit_web_policy_decision_ignore(p);
 239                 arg.v = (void *)webkit_network_request_get_uri(r);
 240                 newwindow(NULL, &arg);
 241                 return TRUE;
 242         }
 243         return FALSE;
 244 }
 245
 246 void
 247 destroywin(GtkWidget* w, Client *c) {
 248         destroyclient(c);
 249 }
 250
 251 void
 252 die(char *str) {
 253         fputs(str, stderr);
 254         exit(EXIT_FAILURE);
 255 }
 256
 257 void
 258 drawindicator(Client *c) {
 259         gint width;
 260         const char *uri;
 261         GtkWidget *w;
 262         GdkGC *gc;
 263         GdkColor fg;
 264
 265         uri = getatom(c, uriprop);
 266         w = c->indicator;
 267         width = c->progress * w->allocation.width / 100;
 268         gc = gdk_gc_new(w->window);
 269         gdk_color_parse(strstr(uri, "https://") == uri ?
 270                         progress_trust : progress, &fg);
 271         gdk_gc_set_rgb_fg_color(gc, &fg);
 272         gdk_draw_rectangle(w->window,
 273                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 274                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 275         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 276                         w->allocation.height);
 277         g_object_unref(gc);
 278 }
 279
 280 gboolean
 281 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 282         drawindicator(c);
 283         return TRUE;
 284 }
 285
 286 void
 287 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 288         WebKitDownloadStatus status;
 289
 290         status = webkit_download_get_status(c->download);
 291         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 292                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 293         }
 294         update(c);
 295 }
 296
 297 const char *
 298 getatom(Client *c, Atom a) {
 299         static char buf[BUFSIZ];
 300         Atom adummy;
 301         int idummy;
 302         unsigned long ldummy;
 303         unsigned char *p = NULL;
 304
 305         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 306                         a, 0L, BUFSIZ, False, XA_STRING,
 307                         &adummy, &idummy, &ldummy, &ldummy, &p);
 308         if(p)
 309                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 310         else
 311                 buf[0] = '\0';
 312         XFree(p);
 313         return buf;
 314 }
 315
 316 gboolean
 317 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 318         const char *filename;
 319         char *uri, *html;
 320
 321         stop(c, NULL);
 322         c->download = o;
 323         filename = webkit_download_get_suggested_filename(o);
 324         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 325         webkit_download_set_destination_uri(c->download, uri);
 326         c->progress = 0;
 327         g_free(uri);
 328         html = g_strdup_printf("Download <b>%s</b>...", filename);
 329         webkit_web_view_load_html_string(c->view, html,
 330                         webkit_download_get_uri(c->download));
 331         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 332         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 333         webkit_download_start(c->download);
 334
 335         c->title = copystr(&c->title, filename);
 336         update(c);
 337         g_free(html);
 338         return TRUE;
 339 }
 340
 341 char *
 342 geturi(Client *c) {
 343         char *uri;
 344
 345         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 346                 uri = "about:blank";
 347         return uri;
 348 }
 349
 350 void
 351 itemclick(GtkMenuItem *mi, Client *c) {
 352         int i;
 353         const char *label;
 354
 355         label = gtk_menu_item_get_label(mi);
 356         for(i = 0; i < LENGTH(items); i++)
 357                 if(!strcmp(items[i].label, label))
 358                         items[i].func(c, &(items[i].arg));
 359 }
 360
 361 gboolean
 362 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 363         guint i;
 364         gboolean processed = FALSE;
 365
 366         updatewinid(c);
 367         for(i = 0; i < LENGTH(keys); i++) {
 368                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 369                                 && CLEANMASK(ev->state) == keys[i].mod
 370                                 && keys[i].func) {
 371                         keys[i].func(c, &(keys[i].arg));
 372                         processed = TRUE;
 373                 }
 374         }
 375         return processed;
 376 }
 377
 378 void
 379 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 380         if(l)
 381                 c->linkhover = copystr(&c->linkhover, l);
 382         else if(c->linkhover) {
 383                 free(c->linkhover);
 384                 c->linkhover = NULL;
 385         }
 386         update(c);
 387 }
 388
 389 void
 390 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 391         setatom(c, uriprop, webkit_web_view_get_uri(c->view));
 392         reloadcookies();
 393 }
 394
 395 void
 396 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 397         c->progress = 0;
 398         update(c);
 399 }
 400
 401 void
 402 loaduri(Client *c, const Arg *arg) {
 403         char *u;
 404         const char *uri = (char *)arg->v;
 405
 406         u = g_strrstr(uri, "://") ? g_strdup(uri)
 407                 : g_strdup_printf("http://%s", uri);
 408         webkit_web_view_load_uri(c->view, u);
 409         c->progress = 0;
 410         c->title = copystr(&c->title, u);
 411         g_free(u);
 412         update(c);
 413 }
 414
 415 void
 416 navigate(Client *c, const Arg *arg) {
 417         gint steps = *(gint *)arg;
 418         webkit_web_view_go_back_or_forward(c->view, steps);
 419 }
 420
 421 Client *
 422 newclient(void) {
 423         int i;
 424         Client *c;
 425         WebKitWebSettings *settings;
 426         char *uri;
 427
 428         if(!(c = calloc(1, sizeof(Client))))
 429                 die("Cannot malloc!\n");
 430         /* Window */
 431         if(embed) {
 432                 c->win = gtk_plug_new(embed);
 433         }
 434         else {
 435                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 436                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 437         }
 438         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 439         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 440         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 441         g_signal_connect(G_OBJECT(c->win), "size-allocate", G_CALLBACK(resize), c);
 442
 443         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 444                 die("Cannot malloc!\n");
 445
 446         /* contextmenu */
 447         for(i = 0; i < LENGTH(items); i++) {
 448                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 449                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 450                                 G_CALLBACK(itemclick), c);
 451         }
 452
 453         /* VBox */
 454         c->vbox = gtk_vbox_new(FALSE, 0);
 455
 456         /* scrolled window */
 457         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 458         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 459                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 460
 461         /* webview */
 462         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 463         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 464         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 465         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 466         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 467         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 468         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 469         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 470         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 471         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 472         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 473
 474         /* indicator */
 475         c->indicator = gtk_drawing_area_new();
 476         gtk_widget_set_size_request(c->indicator, 0, 2);
 477         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 478                         G_CALLBACK (exposeindicator), c);
 479
 480         /* Arranging */
 481         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 482         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 483         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 484         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 485
 486         /* Setup */
 487         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 488         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 489         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 490         gtk_widget_show(c->vbox);
 491         gtk_widget_show(c->indicator);
 492         gtk_widget_show(c->scroll);
 493         gtk_widget_show(GTK_WIDGET(c->view));
 494         gtk_widget_show(c->win);
 495         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 496         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 497         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 498         settings = webkit_web_view_get_settings(c->view);
 499         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 500         uri = g_strconcat("file://", stylefile, NULL);
 501         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 502         g_free(uri);
 503         setatom(c, findprop, "");
 504
 505         c->download = NULL;
 506         c->title = NULL;
 507         c->next = clients;
 508         clients = c;
 509         if(showxid) {
 510                 gdk_display_sync(gtk_widget_get_display(c->win));
 511                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 512                 fflush(NULL);
 513         }
 514         return c;
 515 }
 516
 517 void
 518 newwindow(Client *c, const Arg *arg) {
 519         guint i = 0;
 520         const char *cmd[7], *uri;
 521         const Arg a = { .v = (void *)cmd };
 522         char tmp[64];
 523
 524         cmd[i++] = progname;
 525         if(embed) {
 526                 cmd[i++] = "-e";
 527                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 528                 cmd[i++] = tmp;
 529         }
 530         if(showxid) {
 531                 cmd[i++] = "-x";
 532         }
 533         cmd[i++] = "--";
 534         uri = arg->v ? (char *)arg->v : c->linkhover;
 535         if(uri)
 536                 cmd[i++] = uri;
 537         cmd[i++] = NULL;
 538         spawn(NULL, &a);
 539 }
 540
 541 WebKitWebView *
 542 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 543         Client *n = newclient();
 544         return n->view;
 545 }
 546
 547 void
 548 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 549         Arg arg = {.v = text };
 550         if(text != NULL)
 551                 loaduri((Client *) d, &arg);
 552 }
 553
 554 GdkFilterReturn
 555 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 556         Client *c = (Client *)d;
 557         XPropertyEvent *ev;
 558         Arg arg;
 559
 560         if(((XEvent *)e)->type == PropertyNotify) {
 561                 ev = &((XEvent *)e)->xproperty;
 562                 if(ignorexprop)
 563                         ignorexprop--;
 564                 else if(ev->state == PropertyNewValue) {
 565                         if(ev->atom == uriprop) {
 566                                 arg.v = getatom(c, uriprop);
 567                                 loaduri(c, &arg);
 568                         }
 569                         else if(ev->atom == findprop) {
 570                                 arg.b = TRUE;
 571                                 find(c, &arg);
 572                         }
 573                         return GDK_FILTER_REMOVE;
 574                 }
 575         }
 576         return GDK_FILTER_CONTINUE;
 577 }
 578
 579 void
 580 print(Client *c, const Arg *arg) {
 581         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 582 }
 583
 584 void
 585 progresschange(WebKitWebView *v, gint p, Client *c) {
 586         c->progress = p;
 587         update(c);
 588 }
 589
 590 void
 591 reload(Client *c, const Arg *arg) {
 592         gboolean nocache = *(gboolean *)arg;
 593         if(nocache)
 594                  webkit_web_view_reload_bypass_cache(c->view);
 595         else
 596                  webkit_web_view_reload(c->view);
 597 }
 598
 599 void
 600 reloadcookies() {
 601         SoupCookieJar *jar;
 602         GSList *l, *e;
 603
 604         lockcookie = TRUE;
 605         for(l = e = soup_cookie_jar_all_cookies(cookies); e; e = e->next)
 606                 soup_cookie_jar_delete_cookie(cookies, (SoupCookie *)e->data);
 607         soup_cookies_free(l);
 608         jar = soup_cookie_jar_text_new(cookiefile, TRUE);
 609         for(l = e = soup_cookie_jar_all_cookies(jar); e; e = e->next)
 610                 soup_cookie_jar_add_cookie(cookies, (SoupCookie *)e->data);
 611         g_slist_free(l);
 612         lockcookie = FALSE;
 613         g_object_unref(jar);
 614 }
 615
 616 void
 617 scroll(Client *c, const Arg *arg) {
 618         gdouble v;
 619         GtkAdjustment *a;
 620
 621         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 622         v = gtk_adjustment_get_value(a);
 623         v += gtk_adjustment_get_step_increment(a) * arg->i;
 624         v = MAX(v, 0.0);
 625         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 626         gtk_adjustment_set_value(a, v);
 627 }
 628
 629 void
 630 resize(GtkWidget *w, GtkAllocation *a, Client *c) {
 631         double zoom;
 632
 633         if(c->zoomed)
 634                 return;
 635         zoom = webkit_web_view_get_zoom_level(c->view);
 636         if(a->width * a->height < 300 * 400 && zoom != 0.2)
 637                 webkit_web_view_set_zoom_level(c->view, 0.2);
 638         else if(zoom != 1.0)
 639                 webkit_web_view_set_zoom_level(c->view, 1.0);
 640 }
 641
 642 void
 643 sigchld(int unused) {
 644         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 645                 die("Can't install SIGCHLD handler");
 646         while(0 < waitpid(-1, NULL, WNOHANG));
 647 }
 648
 649 void
 650 setatom(Client *c, Atom a, const char *v) {
 651         XSync(dpy, False);
 652         ignorexprop++;
 653         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), a,
 654                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 655                         strlen(v) + 1);
 656 }
 657
 658 void
 659 setup(void) {
 660         SoupSession *s;
 661
 662         /* clean up any zombies immediately */
 663         sigchld(0);
 664         gtk_init(NULL, NULL);
 665         if (!g_thread_supported())
 666                 g_thread_init(NULL);
 667
 668         dpy = GDK_DISPLAY();
 669         session = webkit_get_default_session();
 670         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 671         findprop = XInternAtom(dpy, "_SURF_FIND", False);
 672
 673         /* create dirs and files */
 674         cookiefile = buildpath(cookiefile);
 675         dldir = buildpath(dldir);
 676         scriptfile = buildpath(scriptfile);
 677         stylefile = buildpath(stylefile);
 678
 679         /* cookie persistance */
 680         s = webkit_get_default_session();
 681         cookies = soup_cookie_jar_new();
 682         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookies));
 683         g_signal_connect(cookies, "changed", G_CALLBACK(changecookie), NULL);
 684         reloadcookies();
 685 }
 686
 687 void
 688 source(Client *c, const Arg *arg) {
 689         Arg a = { .b = FALSE };
 690         gboolean s;
 691
 692         s = webkit_web_view_get_view_source_mode(c->view);
 693         webkit_web_view_set_view_source_mode(c->view, !s);
 694         reload(c, &a);
 695 }
 696
 697 void
 698 find(Client *c, const Arg *arg) {
 699         const char *s;
 700
 701         s = getatom(c, findprop);
 702         gboolean forward = *(gboolean *)arg;
 703         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 704 }
 705
 706 void
 707 stop(Client *c, const Arg *arg) {
 708         if(c->download)
 709                 webkit_download_cancel(c->download);
 710         else
 711                 webkit_web_view_stop_loading(c->view);
 712         c->download = NULL;
 713 }
 714
 715 void
 716 spawn(Client *c, const Arg *arg) {
 717         if(fork() == 0) {
 718                 if(dpy)
 719                         close(ConnectionNumber(dpy));
 720                 setsid();
 721                 execvp(((char **)arg->v)[0], (char **)arg->v);
 722                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 723                 perror(" failed");
 724                 exit(0);
 725         }
 726 }
 727
 728 void
 729 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 730         c->title = copystr(&c->title, t);
 731         update(c);
 732 }
 733
 734 void
 735 usage(void) {
 736         fputs("surf - simple browser\n", stderr);
 737         die("usage: surf [-e Window] [-x] [uri]\n");
 738 }
 739
 740 void
 741 update(Client *c) {
 742         char *t;
 743
 744         if(c->progress != 100)
 745                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 746         else if(c->linkhover)
 747                 t = g_strdup(c->linkhover);
 748         else
 749                 t = g_strdup(c->title);
 750         drawindicator(c);
 751         gtk_window_set_title(GTK_WINDOW(c->win), t);
 752         g_free(t);
 753
 754 }
 755
 756 void
 757 updatewinid(Client *c) {
 758         snprintf(winid, LENGTH(winid), "%u",
 759                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 760 }
 761
 762 void
 763 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 764         JSStringRef jsscript;
 765         char *script;
 766         JSValueRef exception = NULL;
 767         GError *error;
 768
 769         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 770                 jsscript = JSStringCreateWithUTF8CString(script);
 771                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 772         }
 773 }
 774
 775 void
 776 zoom(Client *c, const Arg *arg) {
 777         c->zoomed = TRUE;
 778         if(arg->i < 0)          /* zoom out */
 779                 webkit_web_view_zoom_out(c->view);
 780         else if(arg->i > 0)     /* zoom in */
 781                 webkit_web_view_zoom_in(c->view);
 782         else {                  /* reset */
 783                 c->zoomed = FALSE;
 784                 webkit_web_view_set_zoom_level(c->view, 1.0);
 785         }
 786 }
 787
 788 int main(int argc, char *argv[]) {
 789         int i;
 790         Arg arg;
 791
 792         progname = argv[0];
 793         /* command line args */
 794         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 795                 if(!strcmp(argv[i], "-x"))
 796                         showxid = TRUE;
 797                 else if(!strcmp(argv[i], "-e")) {
 798                         if(++i < argc)
 799                                 embed = atoi(argv[i]);
 800                         else
 801                                 usage();
 802                 }
 803                 else if(!strcmp(argv[i], "--")) {
 804                         i++;
 805                         break;
 806                 }
 807                 else if(!strcmp(argv[i], "-v"))
 808                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 809                 else
 810                         usage();
 811         }
 812         if(i < argc)
 813                 arg.v = argv[i];
 814         setup();
 815         newclient();
 816         if(arg.v) {
 817                 loaduri(clients, &arg);
 818         }
 819         gtk_main();
 820         cleanup();
 821         return EXIT_SUCCESS;
 822 }