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 char *geturi(Client *c);
  83 static const char *getatom(Client *c, Atom a);
  84 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  85 static void itemclick(GtkMenuItem *mi, Client *c);
  86 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  87 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  88 static void loadcommit(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  89 static void loadstart(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  90 static void loaduri(Client *c, const Arg *arg);
  91 static void navigate(Client *c, const Arg *arg);
  92 static Client *newclient(void);
  93 static void newwindow(Client *c, const Arg *arg);
  94 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  95 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
  96 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
  97 static void print(Client *c, const Arg *arg);
  98 static void progresschange(WebKitWebView *v, gint p, Client *c);
  99 static void reloadcookies();
 100 static void reload(Client *c, const Arg *arg);
 101 static void resize(GtkWidget *w, GtkAllocation *a, Client *c);
 102 static void sigchld(int unused);
 103 static void setatom(Client *c, Atom a, const char *v);
 104 static void setup(void);
 105 static void spawn(Client *c, const Arg *arg);
 106 static void scroll(Client *c, const Arg *arg);
 107 static void find(Client *c, const Arg *arg);
 108 static void source(Client *c, const Arg *arg);
 109 static void stop(Client *c, const Arg *arg);
 110 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 111 static void usage(void);
 112 static void update(Client *c);
 113 static void updatewinid(Client *c);
 114 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 115 static void zoom(Client *c, const Arg *arg);
 116
 117 /* configuration, allows nested code to access above variables */
 118 #include "config.h"
 119
 120 char *
 121 buildpath(const char *path) {
 122         char *apath, *p;
 123         FILE *f;
 124
 125         /* creating directory */
 126         if(path[0] == '/')
 127                 apath = g_strdup(path);
 128         else
 129                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 130         if((p = strrchr(apath, '/'))) {
 131                 *p = '\0';
 132                 g_mkdir_with_parents(apath, 0755);
 133                 *p = '/';
 134         }
 135         /* creating file (gives error when apath ends with "/") */
 136         if((f = g_fopen(apath, "a")))
 137                 fclose(f);
 138         return apath;
 139 }
 140
 141 void
 142 changecookie(SoupCookieJar *j, SoupCookie *oc, SoupCookie *c, gpointer p) {
 143         SoupDate *e;
 144         SoupCookieJar *jar;
 145
 146         if(lockcookie)
 147                 return;
 148         if(c && c->expires == NULL) {
 149                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 150                 c = soup_cookie_copy(c);
 151                 soup_cookie_set_expires(c, e);
 152         }
 153
 154         jar = soup_cookie_jar_text_new(cookiefile, FALSE);
 155         if(c)
 156                 soup_cookie_jar_add_cookie(jar, soup_cookie_copy(c));
 157         else
 158                 soup_cookie_jar_delete_cookie(jar, oc);
 159         g_object_unref(jar);
 160 }
 161
 162 void
 163 cleanup(void) {
 164         while(clients)
 165                 destroyclient(clients);
 166         g_free(cookiefile);
 167         g_free(dldir);
 168         g_free(scriptfile);
 169         g_free(stylefile);
 170 }
 171
 172 void
 173 clipboard(Client *c, const Arg *arg) {
 174         gboolean paste = *(gboolean *)arg;
 175
 176         if(paste)
 177                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 178         else
 179                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), geturi(c), -1);
 180 }
 181
 182 void
 183 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 184         int i;
 185         GtkContainer *parent;
 186
 187         gtk_widget_hide_all(GTK_WIDGET(m));
 188         gtk_widget_show(GTK_WIDGET(m));
 189         for(i = 0; i < LENGTH(items); i++) {
 190                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 191                 if(parent)
 192                         gtk_container_remove(parent, c->items[i]);
 193                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 194                 gtk_widget_show(c->items[i]);
 195         }
 196 }
 197
 198 char *
 199 copystr(char **str, const char *src) {
 200         char *tmp;
 201         tmp = g_strdup(src);
 202
 203         if(str && *str) {
 204                 g_free(*str);
 205                 *str = tmp;
 206         }
 207         return tmp;
 208 }
 209
 210 void
 211 destroyclient(Client *c) {
 212         int i;
 213         Client *p;
 214
 215         gtk_widget_destroy(GTK_WIDGET(c->view));
 216         gtk_widget_destroy(c->scroll);
 217         gtk_widget_destroy(c->vbox);
 218         gtk_widget_destroy(c->indicator);
 219         gtk_widget_destroy(c->win);
 220         for(i = 0; i < LENGTH(items); i++)
 221                 gtk_widget_destroy(c->items[i]);
 222         free(c->items);
 223
 224         for(p = clients; p && p->next != c; p = p->next);
 225         if(p)
 226                 p->next = c->next;
 227         else
 228                 clients = c->next;
 229         free(c);
 230         if(clients == NULL)
 231                 gtk_main_quit();
 232 }
 233
 234 gboolean
 235 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 236         Arg arg;
 237
 238         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 239                 webkit_web_policy_decision_ignore(p);
 240                 arg.v = (void *)webkit_network_request_get_uri(r);
 241                 newwindow(NULL, &arg);
 242                 return TRUE;
 243         }
 244         return FALSE;
 245 }
 246
 247 void
 248 destroywin(GtkWidget* w, Client *c) {
 249         destroyclient(c);
 250 }
 251
 252 void
 253 die(char *str) {
 254         fputs(str, stderr);
 255         exit(EXIT_FAILURE);
 256 }
 257
 258 void
 259 drawindicator(Client *c) {
 260         gint width;
 261         const char *uri;
 262         GtkWidget *w;
 263         GdkGC *gc;
 264         GdkColor fg;
 265
 266         uri = getatom(c, uriprop);
 267         w = c->indicator;
 268         width = c->progress * w->allocation.width / 100;
 269         gc = gdk_gc_new(w->window);
 270         gdk_color_parse(strstr(uri, "https://") == uri ?
 271                         progress_trust : progress, &fg);
 272         gdk_gc_set_rgb_fg_color(gc, &fg);
 273         gdk_draw_rectangle(w->window,
 274                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 275                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 276         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 277                         w->allocation.height);
 278         g_object_unref(gc);
 279 }
 280
 281 gboolean
 282 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 283         drawindicator(c);
 284         return TRUE;
 285 }
 286
 287 void
 288 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 289         WebKitDownloadStatus status;
 290
 291         status = webkit_download_get_status(c->download);
 292         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 293                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 294         }
 295         update(c);
 296 }
 297
 298 const char *
 299 getatom(Client *c, Atom a) {
 300         static char buf[BUFSIZ];
 301         Atom adummy;
 302         int idummy;
 303         unsigned long ldummy;
 304         unsigned char *p = NULL;
 305
 306         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 307                         a, 0L, BUFSIZ, False, XA_STRING,
 308                         &adummy, &idummy, &ldummy, &ldummy, &p);
 309         if(p)
 310                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 311         else
 312                 buf[0] = '\0';
 313         XFree(p);
 314         return buf;
 315 }
 316
 317 gboolean
 318 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 319         const char *filename;
 320         char *uri, *html;
 321
 322         stop(c, NULL);
 323         c->download = o;
 324         filename = webkit_download_get_suggested_filename(o);
 325         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 326         webkit_download_set_destination_uri(c->download, uri);
 327         c->progress = 0;
 328         g_free(uri);
 329         html = g_strdup_printf("Download <b>%s</b>...", filename);
 330         webkit_web_view_load_html_string(c->view, html,
 331                         webkit_download_get_uri(c->download));
 332         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 333         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 334         webkit_download_start(c->download);
 335
 336         c->title = copystr(&c->title, filename);
 337         update(c);
 338         g_free(html);
 339         return TRUE;
 340 }
 341
 342 char *
 343 geturi(Client *c) {
 344         char *uri;
 345
 346         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 347                 uri = "about:blank";
 348         return uri;
 349 }
 350
 351 void
 352 itemclick(GtkMenuItem *mi, Client *c) {
 353         int i;
 354         const char *label;
 355
 356         label = gtk_menu_item_get_label(mi);
 357         for(i = 0; i < LENGTH(items); i++)
 358                 if(!strcmp(items[i].label, label))
 359                         items[i].func(c, &(items[i].arg));
 360 }
 361
 362 gboolean
 363 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 364         guint i;
 365         gboolean processed = FALSE;
 366
 367         updatewinid(c);
 368         for(i = 0; i < LENGTH(keys); i++) {
 369                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 370                                 && CLEANMASK(ev->state) == keys[i].mod
 371                                 && keys[i].func) {
 372                         keys[i].func(c, &(keys[i].arg));
 373                         processed = TRUE;
 374                 }
 375         }
 376         return processed;
 377 }
 378
 379 void
 380 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 381         if(l)
 382                 c->linkhover = copystr(&c->linkhover, l);
 383         else if(c->linkhover) {
 384                 free(c->linkhover);
 385                 c->linkhover = NULL;
 386         }
 387         update(c);
 388 }
 389
 390 void
 391 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 392         setatom(c, uriprop, geturi(c));
 393         reloadcookies();
 394 }
 395
 396 void
 397 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 398         c->progress = 0;
 399         update(c);
 400 }
 401
 402 void
 403 loaduri(Client *c, const Arg *arg) {
 404         char *u;
 405         const char *uri = (char *)arg->v;
 406
 407         u = g_strrstr(uri, "://") ? g_strdup(uri)
 408                 : g_strdup_printf("http://%s", uri);
 409         webkit_web_view_load_uri(c->view, u);
 410         c->progress = 0;
 411         c->title = copystr(&c->title, u);
 412         g_free(u);
 413         update(c);
 414 }
 415
 416 void
 417 navigate(Client *c, const Arg *arg) {
 418         gint steps = *(gint *)arg;
 419         webkit_web_view_go_back_or_forward(c->view, steps);
 420 }
 421
 422 Client *
 423 newclient(void) {
 424         int i;
 425         Client *c;
 426         WebKitWebSettings *settings;
 427         GdkGeometry hints = { 1, 1 };
 428         char *uri;
 429
 430         if(!(c = calloc(1, sizeof(Client))))
 431                 die("Cannot malloc!\n");
 432         /* Window */
 433         if(embed) {
 434                 c->win = gtk_plug_new(embed);
 435         }
 436         else {
 437                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 438                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 439         }
 440         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 441         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 442         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 443         g_signal_connect(G_OBJECT(c->win), "size-allocate", G_CALLBACK(resize), c);
 444
 445         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 446                 die("Cannot malloc!\n");
 447
 448         /* contextmenu */
 449         for(i = 0; i < LENGTH(items); i++) {
 450                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 451                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 452                                 G_CALLBACK(itemclick), c);
 453         }
 454
 455         /* VBox */
 456         c->vbox = gtk_vbox_new(FALSE, 0);
 457
 458         /* scrolled window */
 459         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 460         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 461                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 462
 463         /* webview */
 464         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 465         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 466         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 467         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 468         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 469         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 470         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 471         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 472         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 473         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 474         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 475
 476         /* indicator */
 477         c->indicator = gtk_drawing_area_new();
 478         gtk_widget_set_size_request(c->indicator, 0, 2);
 479         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 480                         G_CALLBACK (exposeindicator), c);
 481
 482         /* Arranging */
 483         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 484         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 485         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 486         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 487
 488         /* Setup */
 489         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 490         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 491         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 492         gtk_widget_show(c->vbox);
 493         gtk_widget_show(c->indicator);
 494         gtk_widget_show(c->scroll);
 495         gtk_widget_show(GTK_WIDGET(c->view));
 496         gtk_widget_show(c->win);
 497         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 498         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 499         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 500         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 501         settings = webkit_web_view_get_settings(c->view);
 502         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 503         uri = g_strconcat("file://", stylefile, NULL);
 504         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 505         g_free(uri);
 506         setatom(c, findprop, "");
 507
 508         c->download = NULL;
 509         c->title = NULL;
 510         c->next = clients;
 511         clients = c;
 512         if(showxid) {
 513                 gdk_display_sync(gtk_widget_get_display(c->win));
 514                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 515                 fflush(NULL);
 516         }
 517         return c;
 518 }
 519
 520 void
 521 newwindow(Client *c, const Arg *arg) {
 522         guint i = 0;
 523         const char *cmd[7], *uri;
 524         const Arg a = { .v = (void *)cmd };
 525         char tmp[64];
 526
 527         cmd[i++] = progname;
 528         if(embed) {
 529                 cmd[i++] = "-e";
 530                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 531                 cmd[i++] = tmp;
 532         }
 533         if(showxid) {
 534                 cmd[i++] = "-x";
 535         }
 536         cmd[i++] = "--";
 537         uri = arg->v ? (char *)arg->v : c->linkhover;
 538         if(uri)
 539                 cmd[i++] = uri;
 540         cmd[i++] = NULL;
 541         spawn(NULL, &a);
 542 }
 543
 544 WebKitWebView *
 545 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 546         Client *n = newclient();
 547         return n->view;
 548 }
 549
 550 void
 551 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 552         Arg arg = {.v = text };
 553         if(text != NULL)
 554                 loaduri((Client *) d, &arg);
 555 }
 556
 557 GdkFilterReturn
 558 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 559         Client *c = (Client *)d;
 560         XPropertyEvent *ev;
 561         Arg arg;
 562
 563         if(((XEvent *)e)->type == PropertyNotify) {
 564                 ev = &((XEvent *)e)->xproperty;
 565                 if(ignorexprop)
 566                         ignorexprop--;
 567                 else if(ev->state == PropertyNewValue) {
 568                         if(ev->atom == uriprop) {
 569                                 arg.v = getatom(c, uriprop);
 570                                 loaduri(c, &arg);
 571                         }
 572                         else if(ev->atom == findprop) {
 573                                 arg.b = TRUE;
 574                                 find(c, &arg);
 575                         }
 576                         return GDK_FILTER_REMOVE;
 577                 }
 578         }
 579         return GDK_FILTER_CONTINUE;
 580 }
 581
 582 void
 583 print(Client *c, const Arg *arg) {
 584         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 585 }
 586
 587 void
 588 progresschange(WebKitWebView *v, gint p, Client *c) {
 589         c->progress = p;
 590         update(c);
 591 }
 592
 593 void
 594 reload(Client *c, const Arg *arg) {
 595         gboolean nocache = *(gboolean *)arg;
 596         if(nocache)
 597                  webkit_web_view_reload_bypass_cache(c->view);
 598         else
 599                  webkit_web_view_reload(c->view);
 600 }
 601
 602 void
 603 reloadcookies() {
 604         SoupCookieJar *jar;
 605         GSList *l, *e;
 606
 607         lockcookie = TRUE;
 608         for(l = e = soup_cookie_jar_all_cookies(cookies); e; e = e->next)
 609                 soup_cookie_jar_delete_cookie(cookies, (SoupCookie *)e->data);
 610         soup_cookies_free(l);
 611         jar = soup_cookie_jar_text_new(cookiefile, TRUE);
 612         for(l = e = soup_cookie_jar_all_cookies(jar); e; e = e->next)
 613                 soup_cookie_jar_add_cookie(cookies, (SoupCookie *)e->data);
 614         g_slist_free(l);
 615         lockcookie = FALSE;
 616         g_object_unref(jar);
 617 }
 618
 619 void
 620 scroll(Client *c, const Arg *arg) {
 621         gdouble v;
 622         GtkAdjustment *a;
 623
 624         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 625         v = gtk_adjustment_get_value(a);
 626         v += gtk_adjustment_get_step_increment(a) * arg->i;
 627         v = MAX(v, 0.0);
 628         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 629         gtk_adjustment_set_value(a, v);
 630 }
 631
 632 void
 633 resize(GtkWidget *w, GtkAllocation *a, Client *c) {
 634         double zoom;
 635
 636         if(c->zoomed)
 637                 return;
 638         zoom = webkit_web_view_get_zoom_level(c->view);
 639         if(a->width * a->height < 300 * 400 && zoom != 0.2)
 640                 webkit_web_view_set_zoom_level(c->view, 0.2);
 641         else if(zoom != 1.0)
 642                 webkit_web_view_set_zoom_level(c->view, 1.0);
 643 }
 644
 645 void
 646 sigchld(int unused) {
 647         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 648                 die("Can't install SIGCHLD handler");
 649         while(0 < waitpid(-1, NULL, WNOHANG));
 650 }
 651
 652 void
 653 setatom(Client *c, Atom a, const char *v) {
 654         XSync(dpy, False);
 655         ignorexprop++;
 656         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), a,
 657                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 658                         strlen(v) + 1);
 659 }
 660
 661 void
 662 setup(void) {
 663         SoupSession *s;
 664
 665         /* clean up any zombies immediately */
 666         sigchld(0);
 667         gtk_init(NULL, NULL);
 668         if (!g_thread_supported())
 669                 g_thread_init(NULL);
 670
 671         dpy = GDK_DISPLAY();
 672         session = webkit_get_default_session();
 673         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 674         findprop = XInternAtom(dpy, "_SURF_FIND", False);
 675
 676         /* create dirs and files */
 677         cookiefile = buildpath(cookiefile);
 678         dldir = buildpath(dldir);
 679         scriptfile = buildpath(scriptfile);
 680         stylefile = buildpath(stylefile);
 681
 682         /* cookie persistance */
 683         s = webkit_get_default_session();
 684         cookies = soup_cookie_jar_new();
 685         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookies));
 686         g_signal_connect(cookies, "changed", G_CALLBACK(changecookie), NULL);
 687         reloadcookies();
 688 }
 689
 690 void
 691 source(Client *c, const Arg *arg) {
 692         Arg a = { .b = FALSE };
 693         gboolean s;
 694
 695         s = webkit_web_view_get_view_source_mode(c->view);
 696         webkit_web_view_set_view_source_mode(c->view, !s);
 697         reload(c, &a);
 698 }
 699
 700 void
 701 find(Client *c, const Arg *arg) {
 702         const char *s;
 703
 704         s = getatom(c, findprop);
 705         gboolean forward = *(gboolean *)arg;
 706         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 707 }
 708
 709 void
 710 stop(Client *c, const Arg *arg) {
 711         if(c->download)
 712                 webkit_download_cancel(c->download);
 713         else
 714                 webkit_web_view_stop_loading(c->view);
 715         c->download = NULL;
 716 }
 717
 718 void
 719 spawn(Client *c, const Arg *arg) {
 720         if(fork() == 0) {
 721                 if(dpy)
 722                         close(ConnectionNumber(dpy));
 723                 setsid();
 724                 execvp(((char **)arg->v)[0], (char **)arg->v);
 725                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 726                 perror(" failed");
 727                 exit(0);
 728         }
 729 }
 730
 731 void
 732 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 733         c->title = copystr(&c->title, t);
 734         update(c);
 735 }
 736
 737 void
 738 usage(void) {
 739         fputs("surf - simple browser\n", stderr);
 740         die("usage: surf [-e Window] [-x] [uri]\n");
 741 }
 742
 743 void
 744 update(Client *c) {
 745         char *t;
 746
 747         if(c->progress != 100)
 748                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 749         else if(c->linkhover)
 750                 t = g_strdup(c->linkhover);
 751         else
 752                 t = g_strdup(c->title);
 753         drawindicator(c);
 754         gtk_window_set_title(GTK_WINDOW(c->win), t);
 755         g_free(t);
 756
 757 }
 758
 759 void
 760 updatewinid(Client *c) {
 761         snprintf(winid, LENGTH(winid), "%u",
 762                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 763 }
 764
 765 void
 766 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 767         JSStringRef jsscript;
 768         char *script;
 769         JSValueRef exception = NULL;
 770         GError *error;
 771
 772         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 773                 jsscript = JSStringCreateWithUTF8CString(script);
 774                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 775         }
 776 }
 777
 778 void
 779 zoom(Client *c, const Arg *arg) {
 780         c->zoomed = TRUE;
 781         if(arg->i < 0)          /* zoom out */
 782                 webkit_web_view_zoom_out(c->view);
 783         else if(arg->i > 0)     /* zoom in */
 784                 webkit_web_view_zoom_in(c->view);
 785         else {                  /* reset */
 786                 c->zoomed = FALSE;
 787                 webkit_web_view_set_zoom_level(c->view, 1.0);
 788         }
 789 }
 790
 791 int main(int argc, char *argv[]) {
 792         int i;
 793         Arg arg;
 794
 795         progname = argv[0];
 796         /* command line args */
 797         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 798                 if(!strcmp(argv[i], "-x"))
 799                         showxid = TRUE;
 800                 else if(!strcmp(argv[i], "-e")) {
 801                         if(++i < argc)
 802                                 embed = atoi(argv[i]);
 803                         else
 804                                 usage();
 805                 }
 806                 else if(!strcmp(argv[i], "--")) {
 807                         i++;
 808                         break;
 809                 }
 810                 else if(!strcmp(argv[i], "-v"))
 811                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 812                 else
 813                         usage();
 814         }
 815         if(i < argc)
 816                 arg.v = argv[i];
 817         setup();
 818         newclient();
 819         if(arg.v) {
 820                 loaduri(clients, &arg);
 821         }
 822         gtk_main();
 823         cleanup();
 824         return EXIT_SUCCESS;
 825 }