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 <limits.h>
  17 #include <stdlib.h>
  18 #include <stdio.h>
  19 #include <webkit/webkit.h>
  20 #include <glib/gstdio.h>
  21 #include <JavaScriptCore/JavaScript.h>
  22 #include <sys/file.h>
  23 #include <libgen.h>
  24 #include <stdarg.h>
  25
  26 #include "arg.h"
  27
  28 char *argv0;
  29
  30 #define LENGTH(x)               (sizeof x / sizeof x[0])
  31 #define CLEANMASK(mask)         (mask & (MODKEY|GDK_SHIFT_MASK))
  32 #define COOKIEJAR_TYPE          (cookiejar_get_type ())
  33 #define COOKIEJAR(obj)          (G_TYPE_CHECK_INSTANCE_CAST ((obj), COOKIEJAR_TYPE, CookieJar))
  34
  35 enum { AtomFind, AtomGo, AtomUri, AtomLast };
  36
  37 typedef union Arg Arg;
  38 union Arg {
  39         gboolean b;
  40         gint i;
  41         const void *v;
  42 };
  43
  44 typedef struct Client {
  45         GtkWidget *win, *scroll, *vbox, *pane;
  46         WebKitWebView *view;
  47         WebKitWebInspector *inspector;
  48         char *title, *linkhover;
  49         const char *uri, *needle;
  50         gint progress;
  51         struct Client *next;
  52         gboolean zoomed, fullscreen, isinspecting, sslfailed;
  53 } Client;
  54
  55 typedef struct {
  56         guint mod;
  57         guint keyval;
  58         void (*func)(Client *c, const Arg *arg);
  59         const Arg arg;
  60 } Key;
  61
  62 typedef struct {
  63         SoupCookieJarText parent_instance;
  64         int lock;
  65 } CookieJar;
  66
  67 typedef struct {
  68         SoupCookieJarTextClass parent_class;
  69 } CookieJarClass;
  70
  71 G_DEFINE_TYPE(CookieJar, cookiejar, SOUP_TYPE_COOKIE_JAR_TEXT)
  72
  73 static Display *dpy;
  74 static Atom atoms[AtomLast];
  75 static Client *clients = NULL;
  76 static GdkNativeWindow embed = 0;
  77 static gboolean showxid = FALSE;
  78 static char winid[64];
  79 static gboolean usingproxy = 0;
  80 static char togglestat[6];
  81 static char pagestat[3];
  82
  83 static void beforerequest(WebKitWebView *w, WebKitWebFrame *f,
  84                 WebKitWebResource *r, WebKitNetworkRequest *req,
  85                 WebKitNetworkResponse *resp, gpointer d);
  86 static char *buildpath(const char *path);
  87 static gboolean buttonrelease(WebKitWebView *web, GdkEventButton *e,
  88                 GList *gl);
  89 static void cleanup(void);
  90 static void clipboard(Client *c, const Arg *arg);
  91
  92 static void cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
  93                 SoupCookie *new_cookie);
  94 static void cookiejar_finalize(GObject *self);
  95 static SoupCookieJar *cookiejar_new(const char *filename, gboolean read_only);
  96 static void cookiejar_set_property(GObject *self, guint prop_id,
  97                 const GValue *value, GParamSpec *pspec);
  98
  99 static char *copystr(char **str, const char *src);
 100 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f,
 101                 Client *c);
 102 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f,
 103                 WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p,
 104                 Client *c);
 105 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f,
 106                 WebKitNetworkRequest *r, WebKitWebNavigationAction *n,
 107                 WebKitWebPolicyDecision *p, Client *c);
 108 static void destroyclient(Client *c);
 109 static void destroywin(GtkWidget* w, Client *c);
 110 static void die(const char *errstr, ...);
 111 static void eval(Client *c, const Arg *arg);
 112 static void find(Client *c, const Arg *arg);
 113 static void fullscreen(Client *c, const Arg *arg);
 114 static const char *getatom(Client *c, int a);
 115 static void gettogglestat(Client *c);
 116 static void getpagestat(Client *c);
 117 static char *geturi(Client *c);
 118 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
 119
 120 static void inspector(Client *c, const Arg *arg);
 121 static WebKitWebView *inspector_new(WebKitWebInspector *i, WebKitWebView *v,
 122                 Client *c);
 123 static gboolean inspector_show(WebKitWebInspector *i, Client *c);
 124 static gboolean inspector_close(WebKitWebInspector *i, Client *c);
 125 static void inspector_finished(WebKitWebInspector *i, Client *c);
 126
 127 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
 128 static void linkhover(WebKitWebView *v, const char* t, const char* l,
 129                 Client *c);
 130 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec,
 131                 Client *c);
 132 static void loaduri(Client *c, const Arg *arg);
 133 static void navigate(Client *c, const Arg *arg);
 134 static Client *newclient(void);
 135 static void newwindow(Client *c, const Arg *arg, gboolean noembed);
 136 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 137 static void populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c);
 138 static void popupactivate(GtkMenuItem *menu, Client *);
 139 static void print(Client *c, const Arg *arg);
 140 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event,
 141                 gpointer d);
 142 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 143 static void reload(Client *c, const Arg *arg);
 144 static void scroll_h(Client *c, const Arg *arg);
 145 static void scroll_v(Client *c, const Arg *arg);
 146 static void scroll(GtkAdjustment *a, const Arg *arg);
 147 static void setatom(Client *c, int a, const char *v);
 148 static void setup(void);
 149 static void sigchld(int unused);
 150 static void source(Client *c, const Arg *arg);
 151 static void spawn(Client *c, const Arg *arg);
 152 static void stop(Client *c, const Arg *arg);
 153 static void titlechange(WebKitWebView *v, WebKitWebFrame *frame,
 154                 const char *title, Client *c);
 155 static void toggle(Client *c, const Arg *arg);
 156 static void togglestyle(Client *c, const Arg *arg);
 157 static void update(Client *c);
 158 static void updatewinid(Client *c);
 159 static void usage(void);
 160 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame,
 161                 JSContextRef js, JSObjectRef win, Client *c);
 162 static void zoom(Client *c, const Arg *arg);
 163
 164 /* configuration, allows nested code to access above variables */
 165 #include "config.h"
 166
 167 static void
 168 beforerequest(WebKitWebView *w, WebKitWebFrame *f, WebKitWebResource *r,
 169                 WebKitNetworkRequest *req, WebKitNetworkResponse *resp,
 170                 gpointer d) {
 171         const gchar *uri = webkit_network_request_get_uri(req);
 172         if(g_str_has_suffix(uri, "/favicon.ico"))
 173                 webkit_network_request_set_uri(req, "about:blank");
 174 }
 175
 176 static char *
 177 buildpath(const char *path) {
 178         char *apath, *p;
 179         FILE *f;
 180
 181         /* creating directory */
 182         if(path[0] == '/') {
 183                 apath = g_strdup(path);
 184         } else if(path[0] == '~') {
 185                 if(path[1] == '/') {
 186                         apath = g_strconcat(g_get_home_dir(), &path[1], NULL);
 187                 } else {
 188                         apath = g_strconcat(g_get_home_dir(), "/",
 189                                         &path[1], NULL);
 190                 }
 191         } else {
 192                 apath = g_strconcat(g_get_current_dir(), "/", path, NULL);
 193         }
 194
 195         if((p = strrchr(apath, '/'))) {
 196                 *p = '\0';
 197                 g_mkdir_with_parents(apath, 0700);
 198                 g_chmod(apath, 0700); /* in case it existed */
 199                 *p = '/';
 200         }
 201         /* creating file (gives error when apath ends with "/") */
 202         if((f = fopen(apath, "a"))) {
 203                 g_chmod(apath, 0600); /* always */
 204                 fclose(f);
 205         }
 206
 207         return apath;
 208 }
 209
 210 static gboolean
 211 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 212         WebKitHitTestResultContext context;
 213         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web,
 214                         e);
 215         Arg arg;
 216
 217         g_object_get(result, "context", &context, NULL);
 218         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 219                 if(e->button == 2) {
 220                         g_object_get(result, "link-uri", &arg.v, NULL);
 221                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 222                         return true;
 223                 }
 224         }
 225         return false;
 226 }
 227
 228 static void
 229 cleanup(void) {
 230         while(clients)
 231                 destroyclient(clients);
 232         g_free(cookiefile);
 233         g_free(scriptfile);
 234         g_free(stylefile);
 235 }
 236
 237 static void
 238 cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
 239                 SoupCookie *new_cookie) {
 240         flock(COOKIEJAR(self)->lock, LOCK_EX);
 241         if(new_cookie && !new_cookie->expires && sessiontime) {
 242                 soup_cookie_set_expires(new_cookie,
 243                                 soup_date_new_from_now(sessiontime));
 244         }
 245         SOUP_COOKIE_JAR_CLASS(cookiejar_parent_class)->changed(self,
 246                         old_cookie, new_cookie);
 247         flock(COOKIEJAR(self)->lock, LOCK_UN);
 248 }
 249
 250 static void
 251 cookiejar_class_init(CookieJarClass *klass) {
 252         SOUP_COOKIE_JAR_CLASS(klass)->changed = cookiejar_changed;
 253         G_OBJECT_CLASS(klass)->get_property =
 254                 G_OBJECT_CLASS(cookiejar_parent_class)->get_property;
 255         G_OBJECT_CLASS(klass)->set_property = cookiejar_set_property;
 256         G_OBJECT_CLASS(klass)->finalize = cookiejar_finalize;
 257         g_object_class_override_property(G_OBJECT_CLASS(klass), 1, "filename");
 258 }
 259
 260 static void
 261 cookiejar_finalize(GObject *self) {
 262         close(COOKIEJAR(self)->lock);
 263         G_OBJECT_CLASS(cookiejar_parent_class)->finalize(self);
 264 }
 265
 266 static void
 267 cookiejar_init(CookieJar *self) {
 268         self->lock = open(cookiefile, 0);
 269 }
 270
 271 static SoupCookieJar *
 272 cookiejar_new(const char *filename, gboolean read_only) {
 273         return g_object_new(COOKIEJAR_TYPE,
 274                             SOUP_COOKIE_JAR_TEXT_FILENAME, filename,
 275                             SOUP_COOKIE_JAR_READ_ONLY, read_only, NULL);
 276 }
 277
 278 static void
 279 cookiejar_set_property(GObject *self, guint prop_id, const GValue *value,
 280                 GParamSpec *pspec) {
 281         flock(COOKIEJAR(self)->lock, LOCK_SH);
 282         G_OBJECT_CLASS(cookiejar_parent_class)->set_property(self, prop_id,
 283                         value, pspec);
 284         flock(COOKIEJAR(self)->lock, LOCK_UN);
 285 }
 286
 287 static void
 288 evalscript(JSContextRef js, char *script, char* scriptname) {
 289         JSStringRef jsscript, jsscriptname;
 290         JSValueRef exception = NULL;
 291
 292         jsscript = JSStringCreateWithUTF8CString(script);
 293         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 294         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), jsscriptname, 0, &exception);
 295         JSStringRelease(jsscript);
 296         JSStringRelease(jsscriptname);
 297 }
 298
 299 static void
 300 runscript(WebKitWebFrame *frame) {
 301         char *script;
 302         GError *error;
 303
 304         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 305                 evalscript(webkit_web_frame_get_global_context(frame), script, scriptfile);
 306         }
 307 }
 308
 309 static void
 310 clipboard(Client *c, const Arg *arg) {
 311         gboolean paste = *(gboolean *)arg;
 312
 313         if(paste)
 314                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 315         else
 316                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 317 }
 318
 319 static char *
 320 copystr(char **str, const char *src) {
 321         char *tmp;
 322         tmp = g_strdup(src);
 323
 324         if(str && *str) {
 325                 g_free(*str);
 326                 *str = tmp;
 327         }
 328         return tmp;
 329 }
 330
 331 static WebKitWebView *
 332 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 333         Client *n = newclient();
 334         return n->view;
 335 }
 336
 337 static gboolean
 338 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r,
 339                 gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 340         if(!webkit_web_view_can_show_mime_type(v, m)) {
 341                 webkit_web_policy_decision_download(p);
 342                 return TRUE;
 343         }
 344         return FALSE;
 345 }
 346
 347 static gboolean
 348 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r,
 349                 WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p,
 350                 Client *c) {
 351         Arg arg;
 352
 353         if(webkit_web_navigation_action_get_reason(n) ==
 354                         WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 355                 webkit_web_policy_decision_ignore(p);
 356                 arg.v = (void *)webkit_network_request_get_uri(r);
 357                 newwindow(NULL, &arg, 0);
 358                 return TRUE;
 359         }
 360         return FALSE;
 361 }
 362
 363 static void
 364 destroyclient(Client *c) {
 365         Client *p;
 366
 367         webkit_web_view_stop_loading(c->view);
 368         gtk_widget_destroy(GTK_WIDGET(c->view));
 369         gtk_widget_destroy(c->scroll);
 370         gtk_widget_destroy(c->vbox);
 371         gtk_widget_destroy(c->win);
 372
 373         for(p = clients; p && p->next != c; p = p->next);
 374         if(p) {
 375                 p->next = c->next;
 376         } else {
 377                 clients = c->next;
 378         }
 379         free(c);
 380         if(clients == NULL)
 381                 gtk_main_quit();
 382 }
 383
 384 static void
 385 destroywin(GtkWidget* w, Client *c) {
 386         destroyclient(c);
 387 }
 388
 389 static void
 390 die(const char *errstr, ...) {
 391         va_list ap;
 392
 393         va_start(ap, errstr);
 394         vfprintf(stderr, errstr, ap);
 395         va_end(ap);
 396         exit(EXIT_FAILURE);
 397 }
 398
 399 static void
 400 find(Client *c, const Arg *arg) {
 401         const char *s;
 402
 403         s = getatom(c, AtomFind);
 404         gboolean forward = *(gboolean *)arg;
 405         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 406 }
 407
 408 static void
 409 fullscreen(Client *c, const Arg *arg) {
 410         if(c->fullscreen) {
 411                 gtk_window_unfullscreen(GTK_WINDOW(c->win));
 412         } else {
 413                 gtk_window_fullscreen(GTK_WINDOW(c->win));
 414         }
 415         c->fullscreen = !c->fullscreen;
 416 }
 417
 418 static const char *
 419 getatom(Client *c, int a) {
 420         static char buf[BUFSIZ];
 421         Atom adummy;
 422         int idummy;
 423         unsigned long ldummy;
 424         unsigned char *p = NULL;
 425
 426         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 427                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 428                         &adummy, &idummy, &ldummy, &ldummy, &p);
 429         if(p)
 430                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 431         else
 432                 buf[0] = '\0';
 433         XFree(p);
 434         return buf;
 435 }
 436
 437 static char *
 438 geturi(Client *c) {
 439         char *uri;
 440
 441         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 442                 uri = "about:blank";
 443         return uri;
 444 }
 445
 446 static gboolean
 447 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 448         Arg arg;
 449
 450         updatewinid(c);
 451         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o), geturi(c));
 452         spawn(c, &arg);
 453         return FALSE;
 454 }
 455
 456 static void
 457 inspector(Client *c, const Arg *arg) {
 458         if(c->isinspecting) {
 459                 webkit_web_inspector_close(c->inspector);
 460         } else {
 461                 webkit_web_inspector_show(c->inspector);
 462         }
 463 }
 464
 465 static WebKitWebView *
 466 inspector_new(WebKitWebInspector *i, WebKitWebView *v, Client *c) {
 467         return WEBKIT_WEB_VIEW(webkit_web_view_new());
 468 }
 469
 470 static gboolean
 471 inspector_show(WebKitWebInspector *i, Client *c) {
 472         WebKitWebView *w;
 473
 474         if(c->isinspecting)
 475                 return false;
 476
 477         w = webkit_web_inspector_get_web_view(i);
 478         gtk_paned_pack2(GTK_PANED(c->pane), GTK_WIDGET(w), TRUE, TRUE);
 479         gtk_widget_show(GTK_WIDGET(w));
 480         c->isinspecting = true;
 481
 482         return true;
 483 }
 484
 485 static gboolean
 486 inspector_close(WebKitWebInspector *i, Client *c) {
 487         GtkWidget *w;
 488
 489         if(!c->isinspecting)
 490                 return false;
 491
 492         w = GTK_WIDGET(webkit_web_inspector_get_web_view(i));
 493         gtk_widget_hide(w);
 494         gtk_widget_destroy(w);
 495         c->isinspecting = false;
 496
 497         return true;
 498 }
 499
 500 static void
 501 inspector_finished(WebKitWebInspector *i, Client *c) {
 502         g_free(c->inspector);
 503 }
 504
 505 static gboolean
 506 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 507         guint i;
 508         gboolean processed = FALSE;
 509
 510         updatewinid(c);
 511         for(i = 0; i < LENGTH(keys); i++) {
 512                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 513                                 && CLEANMASK(ev->state) == keys[i].mod
 514                                 && keys[i].func) {
 515                         keys[i].func(c, &(keys[i].arg));
 516                         processed = TRUE;
 517                 }
 518         }
 519
 520         return processed;
 521 }
 522
 523 static void
 524 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 525         if(l) {
 526                 c->linkhover = copystr(&c->linkhover, l);
 527         } else if(c->linkhover) {
 528                 free(c->linkhover);
 529                 c->linkhover = NULL;
 530         }
 531         update(c);
 532 }
 533
 534 static void
 535 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 536         WebKitWebFrame *frame;
 537         WebKitWebDataSource *src;
 538         WebKitNetworkRequest *request;
 539         SoupMessage *msg;
 540         char *uri;
 541
 542         switch(webkit_web_view_get_load_status (c->view)) {
 543         case WEBKIT_LOAD_COMMITTED:
 544                 uri = geturi(c);
 545                 if(strstr(uri, "https://") == uri) {
 546                         frame = webkit_web_view_get_main_frame(c->view);
 547                         src = webkit_web_frame_get_data_source(frame);
 548                         request = webkit_web_data_source_get_request(src);
 549                         msg = webkit_network_request_get_message(request);
 550                         c->sslfailed = soup_message_get_flags(msg)
 551                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 552                 }
 553                 setatom(c, AtomUri, uri);
 554                 break;
 555         case WEBKIT_LOAD_FINISHED:
 556                 c->progress = 100;
 557                 update(c);
 558                 break;
 559         default:
 560                 break;
 561         }
 562 }
 563
 564 static void
 565 loaduri(Client *c, const Arg *arg) {
 566         char *u, *rp;
 567         const char *uri = (char *)arg->v;
 568         Arg a = { .b = FALSE };
 569
 570         if(strcmp(uri, "") == 0)
 571                 return;
 572
 573         /* In case it's a file path. */
 574         if(uri[0] == '/') {
 575                 rp = realpath(uri, NULL);
 576                 u = g_strdup_printf("file://%s", rp);
 577                 free(rp);
 578         } else {
 579                 u = g_strrstr(uri, "://") ? g_strdup(uri)
 580                         : g_strdup_printf("http://%s", uri);
 581         }
 582
 583         /* prevents endless loop */
 584         if(c->uri && strcmp(u, c->uri) == 0) {
 585                 reload(c, &a);
 586         } else {
 587                 webkit_web_view_load_uri(c->view, u);
 588                 c->progress = 0;
 589                 c->title = copystr(&c->title, u);
 590                 g_free(u);
 591                 update(c);
 592         }
 593 }
 594
 595 static void
 596 navigate(Client *c, const Arg *arg) {
 597         int steps = *(int *)arg;
 598         webkit_web_view_go_back_or_forward(c->view, steps);
 599 }
 600
 601 static Client *
 602 newclient(void) {
 603         Client *c;
 604         WebKitWebSettings *settings;
 605         WebKitWebFrame *frame;
 606         GdkGeometry hints = { 1, 1 };
 607         char *uri, *ua;
 608
 609         if(!(c = calloc(1, sizeof(Client))))
 610                 die("Cannot malloc!\n");
 611
 612         /* Window */
 613         if(embed) {
 614                 c->win = gtk_plug_new(embed);
 615         } else {
 616                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 617
 618                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 619                  * is always correct, so we should still call this function.
 620                  * But when doing so, we *must* differentiate between a
 621                  * WM_CLASS and a resource on the window.  By convention, the
 622                  * window class (WM_CLASS) is capped, while the resource is in
 623                  * lowercase.   Both these values come as a pair.
 624                  */
 625                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 626
 627                 /* TA:  20091214:  And set the role here as well -- so that
 628                  * sessions can pick this up.
 629                  */
 630                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 631         }
 632         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 633         g_signal_connect(G_OBJECT(c->win),
 634                         "destroy",
 635                         G_CALLBACK(destroywin), c);
 636         g_signal_connect(G_OBJECT(c->win),
 637                         "key-press-event",
 638                         G_CALLBACK(keypress), c);
 639
 640         /* Pane */
 641         c->pane = gtk_vpaned_new();
 642
 643         /* VBox */
 644         c->vbox = gtk_vbox_new(FALSE, 0);
 645         gtk_paned_pack1(GTK_PANED(c->pane), c->vbox, TRUE, TRUE);
 646
 647         /* Scrolled Window */
 648         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 649         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 650                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 651
 652         /* Webview */
 653         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 654         g_signal_connect(G_OBJECT(c->view),
 655                         "title-changed",
 656                         G_CALLBACK(titlechange), c);
 657         g_signal_connect(G_OBJECT(c->view),
 658                         "hovering-over-link",
 659                         G_CALLBACK(linkhover), c);
 660         g_signal_connect(G_OBJECT(c->view),
 661                         "create-web-view",
 662                         G_CALLBACK(createwindow), c);
 663         g_signal_connect(G_OBJECT(c->view),
 664                         "new-window-policy-decision-requested",
 665                         G_CALLBACK(decidewindow), c);
 666         g_signal_connect(G_OBJECT(c->view),
 667                         "mime-type-policy-decision-requested",
 668                         G_CALLBACK(decidedownload), c);
 669         g_signal_connect(G_OBJECT(c->view),
 670                         "window-object-cleared",
 671                         G_CALLBACK(windowobjectcleared), c);
 672         g_signal_connect(G_OBJECT(c->view),
 673                         "notify::load-status",
 674                         G_CALLBACK(loadstatuschange), c);
 675         g_signal_connect(G_OBJECT(c->view),
 676                         "notify::progress",
 677                         G_CALLBACK(progresschange), c);
 678         g_signal_connect(G_OBJECT(c->view),
 679                         "download-requested",
 680                         G_CALLBACK(initdownload), c);
 681         g_signal_connect(G_OBJECT(c->view),
 682                         "button-release-event",
 683                         G_CALLBACK(buttonrelease), c);
 684         g_signal_connect(G_OBJECT(c->view),
 685                         "populate-popup",
 686                         G_CALLBACK(populatepopup), c);
 687         g_signal_connect(G_OBJECT(c->view),
 688                         "resource-request-starting",
 689                         G_CALLBACK(beforerequest), c);
 690
 691         /* Arranging */
 692         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 693         gtk_container_add(GTK_CONTAINER(c->win), c->pane);
 694         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 695
 696         /* Setup */
 697         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE,
 698                         TRUE, 0, GTK_PACK_START);
 699         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 700         gtk_widget_show(c->pane);
 701         gtk_widget_show(c->vbox);
 702         gtk_widget_show(c->scroll);
 703         gtk_widget_show(GTK_WIDGET(c->view));
 704         gtk_widget_show(c->win);
 705         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints,
 706                         GDK_HINT_MIN_SIZE);
 707         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 708         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 709         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 710
 711         frame = webkit_web_view_get_main_frame(c->view);
 712         runscript(frame);
 713         settings = webkit_web_view_get_settings(c->view);
 714         if(!(ua = getenv("SURF_USERAGENT")))
 715                 ua = useragent;
 716         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 717         uri = g_strconcat("file://", stylefile, NULL);
 718         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 719         g_object_set(G_OBJECT(settings), "auto-load-images", loadimages,
 720                         NULL);
 721         g_object_set(G_OBJECT(settings), "enable-plugins", enableplugins,
 722                         NULL);
 723         g_object_set(G_OBJECT(settings), "enable-scripts", enablescripts,
 724                         NULL);
 725         g_object_set(G_OBJECT(settings), "enable-spatial-navigation",
 726                         enablespatialbrowsing, NULL);
 727         g_object_set(G_OBJECT(settings), "enable-developer-extras",
 728                         enableinspector, NULL);
 729
 730         if(enableinspector) {
 731                 c->inspector = WEBKIT_WEB_INSPECTOR(
 732                                 webkit_web_view_get_inspector(c->view));
 733                 g_signal_connect(G_OBJECT(c->inspector), "inspect-web-view",
 734                                 G_CALLBACK(inspector_new), c);
 735                 g_signal_connect(G_OBJECT(c->inspector), "show-window",
 736                                 G_CALLBACK(inspector_show), c);
 737                 g_signal_connect(G_OBJECT(c->inspector), "close-window",
 738                                 G_CALLBACK(inspector_close), c);
 739                 g_signal_connect(G_OBJECT(c->inspector), "finished",
 740                                 G_CALLBACK(inspector_finished), c);
 741                 c->isinspecting = false;
 742         }
 743
 744         g_free(uri);
 745
 746         setatom(c, AtomFind, "");
 747         setatom(c, AtomUri, "about:blank");
 748         if(hidebackground)
 749                 webkit_web_view_set_transparent(c->view, TRUE);
 750
 751         c->title = NULL;
 752         c->next = clients;
 753         clients = c;
 754
 755         if(showxid) {
 756                 gdk_display_sync(gtk_widget_get_display(c->win));
 757                 printf("%u\n",
 758                         (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 759                 fflush(NULL);
 760                 if (fclose(stdout) != 0) {
 761                         die("Error closing stdout");
 762                 }
 763         }
 764
 765         return c;
 766 }
 767
 768 static void
 769 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 770         guint i = 0;
 771         const char *cmd[10], *uri;
 772         const Arg a = { .v = (void *)cmd };
 773         char tmp[64];
 774
 775         cmd[i++] = argv0;
 776         if(embed && !noembed) {
 777                 cmd[i++] = "-e";
 778                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 779                 cmd[i++] = tmp;
 780         }
 781         if(!enablescripts)
 782                 cmd[i++] = "-s";
 783         if(!enableplugins)
 784                 cmd[i++] = "-p";
 785         if(!loadimages)
 786                 cmd[i++] = "-i";
 787         if(showxid)
 788                 cmd[i++] = "-x";
 789         cmd[i++] = "--";
 790         uri = arg->v ? (char *)arg->v : c->linkhover;
 791         if(uri)
 792                 cmd[i++] = uri;
 793         cmd[i++] = NULL;
 794         spawn(NULL, &a);
 795 }
 796
 797 static void
 798 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c) {
 799         GList *items = gtk_container_get_children(GTK_CONTAINER(menu));
 800
 801         for(GList *l = items; l; l = l->next) {
 802                 g_signal_connect(l->data, "activate", G_CALLBACK(popupactivate), c);
 803         }
 804
 805         g_list_free(items);
 806 }
 807
 808 static void
 809 popupactivate(GtkMenuItem *menu, Client *c) {
 810         /*
 811          * context-menu-action-2000     open link
 812          * context-menu-action-1        open link in window
 813          * context-menu-action-2        download linked file
 814          * context-menu-action-3        copy link location
 815          * context-menu-action-13       reload
 816          * context-menu-action-10       back
 817          * context-menu-action-11       forward
 818          * context-menu-action-12       stop
 819          */
 820
 821         GtkAction *a = NULL;
 822         const char *name;
 823         GtkClipboard *prisel;
 824
 825         a = gtk_activatable_get_related_action(GTK_ACTIVATABLE(menu));
 826         if(a == NULL)
 827                 return;
 828
 829         name = gtk_action_get_name(a);
 830         if(!g_strcmp0(name, "context-menu-action-3")) {
 831                 prisel = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 832                 gtk_clipboard_set_text(prisel, c->linkhover, -1);
 833         }
 834 }
 835
 836 static void
 837 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 838         Arg arg = {.v = text };
 839         if(text != NULL)
 840                 loaduri((Client *) d, &arg);
 841 }
 842
 843 static void
 844 print(Client *c, const Arg *arg) {
 845         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 846 }
 847
 848 static GdkFilterReturn
 849 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 850         Client *c = (Client *)d;
 851         XPropertyEvent *ev;
 852         Arg arg;
 853
 854         if(((XEvent *)e)->type == PropertyNotify) {
 855                 ev = &((XEvent *)e)->xproperty;
 856                 if(ev->state == PropertyNewValue) {
 857                         if(ev->atom == atoms[AtomFind]) {
 858                                 arg.b = TRUE;
 859                                 find(c, &arg);
 860                                 return GDK_FILTER_REMOVE;
 861                         }
 862                         else if(ev->atom == atoms[AtomGo]) {
 863                                 arg.v = getatom(c, AtomGo);
 864                                 loaduri(c, &arg);
 865                                 return GDK_FILTER_REMOVE;
 866                         }
 867                 }
 868         }
 869         return GDK_FILTER_CONTINUE;
 870 }
 871
 872 static void
 873 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 874         c->progress = webkit_web_view_get_progress(c->view) * 100;
 875         update(c);
 876 }
 877
 878 static void
 879 reload(Client *c, const Arg *arg) {
 880         gboolean nocache = *(gboolean *)arg;
 881         if(nocache)
 882                  webkit_web_view_reload_bypass_cache(c->view);
 883         else
 884                  webkit_web_view_reload(c->view);
 885 }
 886
 887 static void
 888 scroll_h(Client *c, const Arg *arg) {
 889         scroll(gtk_scrolled_window_get_hadjustment(
 890                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 891 }
 892
 893 static void
 894 scroll_v(Client *c, const Arg *arg) {
 895         scroll(gtk_scrolled_window_get_vadjustment(
 896                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 897 }
 898
 899 static void
 900 scroll(GtkAdjustment *a, const Arg *arg) {
 901         gdouble v;
 902
 903         v = gtk_adjustment_get_value(a);
 904         switch (arg->i){
 905         case +10000:
 906         case -10000:
 907                 v += gtk_adjustment_get_page_increment(a) *
 908                         (arg->i / 10000);
 909                 break;
 910         case +20000:
 911         case -20000:
 912         default:
 913                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 914         }
 915
 916         v = MAX(v, 0.0);
 917         v = MIN(v, gtk_adjustment_get_upper(a) -
 918                         gtk_adjustment_get_page_size(a));
 919         gtk_adjustment_set_value(a, v);
 920 }
 921
 922 static void
 923 setatom(Client *c, int a, const char *v) {
 924         XSync(dpy, False);
 925         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 926                         atoms[a], XA_STRING, 8, PropModeReplace,
 927                         (unsigned char *)v, strlen(v) + 1);
 928 }
 929
 930 static void
 931 setup(void) {
 932         char *proxy;
 933         char *new_proxy;
 934         SoupURI *puri;
 935         SoupSession *s;
 936
 937         /* clean up any zombies immediately */
 938         sigchld(0);
 939         gtk_init(NULL, NULL);
 940
 941         dpy = GDK_DISPLAY();
 942
 943         /* atoms */
 944         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 945         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 946         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 947
 948         /* dirs and files */
 949         cookiefile = buildpath(cookiefile);
 950         scriptfile = buildpath(scriptfile);
 951         stylefile = buildpath(stylefile);
 952
 953         /* request handler */
 954         s = webkit_get_default_session();
 955
 956         /* cookie jar */
 957         soup_session_add_feature(s,
 958                         SOUP_SESSION_FEATURE(cookiejar_new(cookiefile,
 959                                         FALSE)));
 960
 961         /* ssl */
 962         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
 963         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
 964
 965         /* proxy */
 966         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 967                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 968                         g_strdup_printf("http://%s", proxy);
 969                 puri = soup_uri_new(new_proxy);
 970                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 971                 soup_uri_free(puri);
 972                 g_free(new_proxy);
 973                 usingproxy = 1;
 974         }
 975 }
 976
 977 static void
 978 sigchld(int unused) {
 979         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 980                 die("Can't install SIGCHLD handler");
 981         while(0 < waitpid(-1, NULL, WNOHANG));
 982 }
 983
 984 static void
 985 source(Client *c, const Arg *arg) {
 986         Arg a = { .b = FALSE };
 987         gboolean s;
 988
 989         s = webkit_web_view_get_view_source_mode(c->view);
 990         webkit_web_view_set_view_source_mode(c->view, !s);
 991         reload(c, &a);
 992 }
 993
 994 static void
 995 spawn(Client *c, const Arg *arg) {
 996         if(fork() == 0) {
 997                 if(dpy)
 998                         close(ConnectionNumber(dpy));
 999                 setsid();
1000                 execvp(((char **)arg->v)[0], (char **)arg->v);
1001                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
1002                 perror(" failed");
1003                 exit(0);
1004         }
1005 }
1006
1007 static void
1008 eval(Client *c, const Arg *arg) {
1009         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
1010         evalscript(webkit_web_frame_get_global_context(frame),
1011                         ((char **)arg->v)[0], "");
1012 }
1013
1014 static void
1015 stop(Client *c, const Arg *arg) {
1016         webkit_web_view_stop_loading(c->view);
1017 }
1018
1019 static void
1020 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
1021         c->title = copystr(&c->title, t);
1022         update(c);
1023 }
1024
1025 static void
1026 toggle(Client *c, const Arg *arg) {
1027         WebKitWebSettings *settings;
1028         char *name = (char *)arg->v;
1029         gboolean value;
1030         Arg a = { .b = FALSE };
1031
1032         settings = webkit_web_view_get_settings(c->view);
1033         g_object_get(G_OBJECT(settings), name, &value, NULL);
1034         g_object_set(G_OBJECT(settings), name, !value, NULL);
1035
1036         reload(c,&a);
1037 }
1038
1039 static void
1040 gettogglestat(Client *c){
1041         gboolean value;
1042         char *uri;
1043         WebKitWebSettings *settings = webkit_web_view_get_settings(c->view);
1044
1045         g_object_get(G_OBJECT(settings), "enable-caret-browsing",
1046                         &value, NULL);
1047         togglestat[0] = value? 'C': 'c';
1048
1049         g_object_get(G_OBJECT(settings), "auto-load-images", &value, NULL);
1050         togglestat[1] = value? 'I': 'i';
1051
1052         g_object_get(G_OBJECT(settings), "enable-scripts", &value, NULL);
1053         togglestat[2] = value? 'S': 's';
1054
1055         g_object_get(G_OBJECT(settings), "enable-plugins", &value, NULL);
1056         togglestat[3] = value? 'V': 'v';
1057
1058         g_object_get(G_OBJECT(settings), "user-stylesheet-uri", &uri, NULL);
1059         togglestat[4] = uri[0] ? 'M': 'm';
1060
1061         togglestat[5] = '\0';
1062 }
1063
1064 static void
1065 getpagestat(Client *c) {
1066         const char *uri = geturi(c);
1067
1068         if(strstr(uri, "https://") == uri) {
1069                 pagestat[0] = c->sslfailed ? 'U' : 'T';
1070         } else {
1071                 pagestat[0] = '-';
1072         }
1073
1074         pagestat[1] = usingproxy ? 'P' : '-';
1075         pagestat[2] = '\0';
1076
1077 }
1078
1079 static void
1080 update(Client *c) {
1081         char *t;
1082
1083         gettogglestat(c);
1084         getpagestat(c);
1085
1086         if(c->linkhover) {
1087                 t = g_strdup_printf("%s:%s | %s", togglestat, pagestat, c->linkhover);
1088         } else if(c->progress != 100) {
1089                 t = g_strdup_printf("[%i%%] %s:%s | %s", c->progress, togglestat,
1090                         pagestat, c->title);
1091         } else {
1092                 t = g_strdup_printf("%s:%s | %s", togglestat, pagestat, c->title);
1093         }
1094
1095         gtk_window_set_title(GTK_WINDOW(c->win), t);
1096         g_free(t);
1097 }
1098
1099 static void
1100 updatewinid(Client *c) {
1101         snprintf(winid, LENGTH(winid), "%u",
1102                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
1103 }
1104
1105 static void
1106 usage(void) {
1107         die("usage: %s [-inpsvx] [-c cookiefile] [-e xid] [-r scriptfile]"
1108                 " [-t stylefile] [-u useragent] [uri]\n", basename(argv0));
1109 }
1110
1111 static void
1112 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js,
1113                 JSObjectRef win, Client *c) {
1114         runscript(frame);
1115 }
1116
1117 static void
1118 zoom(Client *c, const Arg *arg) {
1119         c->zoomed = TRUE;
1120         if(arg->i < 0) {
1121                 /* zoom out */
1122                 webkit_web_view_zoom_out(c->view);
1123         } else if(arg->i > 0) {
1124                 /* zoom in */
1125                 webkit_web_view_zoom_in(c->view);
1126         } else {
1127                 /* reset */
1128                 c->zoomed = FALSE;
1129                 webkit_web_view_set_zoom_level(c->view, 1.0);
1130         }
1131 }
1132
1133 int
1134 main(int argc, char *argv[]) {
1135         Arg arg;
1136
1137         memset(&arg, 0, sizeof(arg));
1138
1139         /* command line args */
1140         ARGBEGIN {
1141         case 'c':
1142                 cookiefile = EARGF(usage());
1143                 break;
1144         case 'e':
1145                 embed = strtol(EARGF(usage()), NULL, 0);
1146                 break;
1147         case 'i':
1148                 loadimages = 0;
1149                 break;
1150         case 'n':
1151                 enableinspector = 0;
1152                 break;
1153         case 'p':
1154                 enableplugins = 0;
1155                 break;
1156         case 'r':
1157                 scriptfile = EARGF(usage());
1158                 break;
1159         case 's':
1160                 enablescripts = 0;
1161                 break;
1162         case 't':
1163                 stylefile = EARGF(usage());
1164                 break;
1165         case 'u':
1166                 useragent = EARGF(usage());
1167                 break;
1168         case 'v':
1169                 die("surf-"VERSION", ©2009-2012 surf engineers, "
1170                                 "see LICENSE for details\n");
1171         case 'x':
1172                 showxid = TRUE;
1173                 break;
1174         default:
1175                 usage();
1176         } ARGEND;
1177         if(argc > 0)
1178                 arg.v = argv[0];
1179
1180         setup();
1181         newclient();
1182         if(arg.v)
1183                 loaduri(clients, &arg);
1184
1185         gtk_main();
1186         cleanup();
1187
1188         return EXIT_SUCCESS;
1189 }
1190
1191 static void
1192 togglestyle(Client *c, const Arg *arg) {
1193         WebKitWebSettings *settings;
1194         char *uri;
1195
1196         settings = webkit_web_view_get_settings(c->view);
1197         g_object_get(G_OBJECT(settings), "user-stylesheet-uri", &uri, NULL);
1198         uri = uri[0] ? g_strdup("") : g_strconcat("file://", stylefile, NULL);
1199         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
1200
1201         update(c);
1202 }