surf.c

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