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