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 togglescrollbars(Client *c, const Arg *arg);
 157 static void togglestyle(Client *c, const Arg *arg);
 158 static void update(Client *c);
 159 static void updatewinid(Client *c);
 160 static void usage(void);
 161 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame,
 162                 JSContextRef js, JSObjectRef win, Client *c);
 163 static void zoom(Client *c, const Arg *arg);
 164
 165 /* configuration, allows nested code to access above variables */
 166 #include "config.h"
 167
 168 static void
 169 beforerequest(WebKitWebView *w, WebKitWebFrame *f, WebKitWebResource *r,
 170                 WebKitNetworkRequest *req, WebKitNetworkResponse *resp,
 171                 gpointer d) {
 172         const gchar *uri = webkit_network_request_get_uri(req);
 173
 174         if(g_str_has_suffix(uri, "/favicon.ico"))
 175                 webkit_network_request_set_uri(req, "about:blank");
 176 }
 177
 178 static char *
 179 buildpath(const char *path) {
 180         char *apath, *p;
 181         FILE *f;
 182
 183         /* creating directory */
 184         if(path[0] == '/') {
 185                 apath = g_strdup(path);
 186         } else if(path[0] == '~') {
 187                 if(path[1] == '/') {
 188                         apath = g_strconcat(g_get_home_dir(), &path[1], NULL);
 189                 } else {
 190                         apath = g_strconcat(g_get_home_dir(), "/",
 191                                         &path[1], NULL);
 192                 }
 193         } else {
 194                 apath = g_strconcat(g_get_current_dir(), "/", path, NULL);
 195         }
 196
 197         if((p = strrchr(apath, '/'))) {
 198                 *p = '\0';
 199                 g_mkdir_with_parents(apath, 0700);
 200                 g_chmod(apath, 0700); /* in case it existed */
 201                 *p = '/';
 202         }
 203         /* creating file (gives error when apath ends with "/") */
 204         if((f = fopen(apath, "a"))) {
 205                 g_chmod(apath, 0600); /* always */
 206                 fclose(f);
 207         }
 208
 209         return apath;
 210 }
 211
 212 static gboolean
 213 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 214         WebKitHitTestResultContext context;
 215         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web,
 216                         e);
 217         Arg arg;
 218
 219         g_object_get(result, "context", &context, NULL);
 220         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 221                 if(e->button == 2) {
 222                         g_object_get(result, "link-uri", &arg.v, NULL);
 223                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 224                         return true;
 225                 }
 226         }
 227         return false;
 228 }
 229
 230 static void
 231 cleanup(void) {
 232         while(clients)
 233                 destroyclient(clients);
 234         g_free(cookiefile);
 235         g_free(scriptfile);
 236         g_free(stylefile);
 237 }
 238
 239 static void
 240 cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
 241                 SoupCookie *new_cookie) {
 242         flock(COOKIEJAR(self)->lock, LOCK_EX);
 243         if(new_cookie && !new_cookie->expires && sessiontime) {
 244                 soup_cookie_set_expires(new_cookie,
 245                                 soup_date_new_from_now(sessiontime));
 246         }
 247         SOUP_COOKIE_JAR_CLASS(cookiejar_parent_class)->changed(self,
 248                         old_cookie, new_cookie);
 249         flock(COOKIEJAR(self)->lock, LOCK_UN);
 250 }
 251
 252 static void
 253 cookiejar_class_init(CookieJarClass *klass) {
 254         SOUP_COOKIE_JAR_CLASS(klass)->changed = cookiejar_changed;
 255         G_OBJECT_CLASS(klass)->get_property =
 256                 G_OBJECT_CLASS(cookiejar_parent_class)->get_property;
 257         G_OBJECT_CLASS(klass)->set_property = cookiejar_set_property;
 258         G_OBJECT_CLASS(klass)->finalize = cookiejar_finalize;
 259         g_object_class_override_property(G_OBJECT_CLASS(klass), 1, "filename");
 260 }
 261
 262 static void
 263 cookiejar_finalize(GObject *self) {
 264         close(COOKIEJAR(self)->lock);
 265         G_OBJECT_CLASS(cookiejar_parent_class)->finalize(self);
 266 }
 267
 268 static void
 269 cookiejar_init(CookieJar *self) {
 270         self->lock = open(cookiefile, 0);
 271 }
 272
 273 static SoupCookieJar *
 274 cookiejar_new(const char *filename, gboolean read_only) {
 275         return g_object_new(COOKIEJAR_TYPE,
 276                             SOUP_COOKIE_JAR_TEXT_FILENAME, filename,
 277                             SOUP_COOKIE_JAR_READ_ONLY, read_only, NULL);
 278 }
 279
 280 static void
 281 cookiejar_set_property(GObject *self, guint prop_id, const GValue *value,
 282                 GParamSpec *pspec) {
 283         flock(COOKIEJAR(self)->lock, LOCK_SH);
 284         G_OBJECT_CLASS(cookiejar_parent_class)->set_property(self, prop_id,
 285                         value, pspec);
 286         flock(COOKIEJAR(self)->lock, LOCK_UN);
 287 }
 288
 289 static void
 290 evalscript(JSContextRef js, char *script, char* scriptname) {
 291         JSStringRef jsscript, jsscriptname;
 292         JSValueRef exception = NULL;
 293
 294         jsscript = JSStringCreateWithUTF8CString(script);
 295         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 296         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js),
 297                         jsscriptname, 0, &exception);
 298         JSStringRelease(jsscript);
 299         JSStringRelease(jsscriptname);
 300 }
 301
 302 static void
 303 runscript(WebKitWebFrame *frame) {
 304         char *script;
 305         GError *error;
 306
 307         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 308                 evalscript(webkit_web_frame_get_global_context(frame),
 309                                 script, scriptfile);
 310         }
 311 }
 312
 313 static void
 314 clipboard(Client *c, const Arg *arg) {
 315         gboolean paste = *(gboolean *)arg;
 316
 317         if(paste) {
 318                 gtk_clipboard_request_text(
 319                                 gtk_clipboard_get(GDK_SELECTION_PRIMARY),
 320                                 pasteuri, c);
 321         } else {
 322                 gtk_clipboard_set_text(
 323                                 gtk_clipboard_get(GDK_SELECTION_PRIMARY),
 324                                 c->linkhover ? c->linkhover : geturi(c), -1);
 325         }
 326 }
 327
 328 static char *
 329 copystr(char **str, const char *src) {
 330         char *tmp;
 331         tmp = g_strdup(src);
 332
 333         if(str && *str) {
 334                 g_free(*str);
 335                 *str = tmp;
 336         }
 337         return tmp;
 338 }
 339
 340 static WebKitWebView *
 341 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 342         Client *n = newclient();
 343         return n->view;
 344 }
 345
 346 static gboolean
 347 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r,
 348                 gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 349         if(!webkit_web_view_can_show_mime_type(v, m)) {
 350                 webkit_web_policy_decision_download(p);
 351                 return TRUE;
 352         }
 353         return FALSE;
 354 }
 355
 356 static gboolean
 357 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r,
 358                 WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p,
 359                 Client *c) {
 360         Arg arg;
 361
 362         if(webkit_web_navigation_action_get_reason(n) ==
 363                         WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 364                 webkit_web_policy_decision_ignore(p);
 365                 arg.v = (void *)webkit_network_request_get_uri(r);
 366                 newwindow(NULL, &arg, 0);
 367                 return TRUE;
 368         }
 369         return FALSE;
 370 }
 371
 372 static void
 373 destroyclient(Client *c) {
 374         Client *p;
 375
 376         webkit_web_view_stop_loading(c->view);
 377         gtk_widget_destroy(GTK_WIDGET(c->view));
 378         gtk_widget_destroy(c->scroll);
 379         gtk_widget_destroy(c->vbox);
 380         gtk_widget_destroy(c->win);
 381
 382         for(p = clients; p && p->next != c; p = p->next);
 383         if(p) {
 384                 p->next = c->next;
 385         } else {
 386                 clients = c->next;
 387         }
 388         free(c);
 389         if(clients == NULL)
 390                 gtk_main_quit();
 391 }
 392
 393 static void
 394 destroywin(GtkWidget* w, Client *c) {
 395         destroyclient(c);
 396 }
 397
 398 static void
 399 die(const char *errstr, ...) {
 400         va_list ap;
 401
 402         va_start(ap, errstr);
 403         vfprintf(stderr, errstr, ap);
 404         va_end(ap);
 405         exit(EXIT_FAILURE);
 406 }
 407
 408 static void
 409 find(Client *c, const Arg *arg) {
 410         const char *s;
 411
 412         s = getatom(c, AtomFind);
 413         gboolean forward = *(gboolean *)arg;
 414         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 415 }
 416
 417 static void
 418 fullscreen(Client *c, const Arg *arg) {
 419         if(c->fullscreen) {
 420                 gtk_window_unfullscreen(GTK_WINDOW(c->win));
 421         } else {
 422                 gtk_window_fullscreen(GTK_WINDOW(c->win));
 423         }
 424         c->fullscreen = !c->fullscreen;
 425 }
 426
 427 static const char *
 428 getatom(Client *c, int a) {
 429         static char buf[BUFSIZ];
 430         Atom adummy;
 431         int idummy;
 432         unsigned long ldummy;
 433         unsigned char *p = NULL;
 434
 435         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 436                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 437                         &adummy, &idummy, &ldummy, &ldummy, &p);
 438         if(p) {
 439                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 440         } else {
 441                 buf[0] = '\0';
 442         }
 443         XFree(p);
 444
 445         return buf;
 446 }
 447
 448 static char *
 449 geturi(Client *c) {
 450         char *uri;
 451
 452         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 453                 uri = "about:blank";
 454         return uri;
 455 }
 456
 457 static gboolean
 458 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 459         Arg arg;
 460
 461         updatewinid(c);
 462         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o), geturi(c));
 463         spawn(c, &arg);
 464         return FALSE;
 465 }
 466
 467 static void
 468 inspector(Client *c, const Arg *arg) {
 469         if(c->isinspecting) {
 470                 webkit_web_inspector_close(c->inspector);
 471         } else {
 472                 webkit_web_inspector_show(c->inspector);
 473         }
 474 }
 475
 476 static WebKitWebView *
 477 inspector_new(WebKitWebInspector *i, WebKitWebView *v, Client *c) {
 478         return WEBKIT_WEB_VIEW(webkit_web_view_new());
 479 }
 480
 481 static gboolean
 482 inspector_show(WebKitWebInspector *i, Client *c) {
 483         WebKitWebView *w;
 484
 485         if(c->isinspecting)
 486                 return false;
 487
 488         w = webkit_web_inspector_get_web_view(i);
 489         gtk_paned_pack2(GTK_PANED(c->pane), GTK_WIDGET(w), TRUE, TRUE);
 490         gtk_widget_show(GTK_WIDGET(w));
 491         c->isinspecting = true;
 492
 493         return true;
 494 }
 495
 496 static gboolean
 497 inspector_close(WebKitWebInspector *i, Client *c) {
 498         GtkWidget *w;
 499
 500         if(!c->isinspecting)
 501                 return false;
 502
 503         w = GTK_WIDGET(webkit_web_inspector_get_web_view(i));
 504         gtk_widget_hide(w);
 505         gtk_widget_destroy(w);
 506         c->isinspecting = false;
 507
 508         return true;
 509 }
 510
 511 static void
 512 inspector_finished(WebKitWebInspector *i, Client *c) {
 513         g_free(c->inspector);
 514 }
 515
 516 static gboolean
 517 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 518         guint i;
 519         gboolean processed = FALSE;
 520
 521         updatewinid(c);
 522         for(i = 0; i < LENGTH(keys); i++) {
 523                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 524                                 && CLEANMASK(ev->state) == keys[i].mod
 525                                 && keys[i].func) {
 526                         keys[i].func(c, &(keys[i].arg));
 527                         processed = TRUE;
 528                 }
 529         }
 530
 531         return processed;
 532 }
 533
 534 static void
 535 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 536         if(l) {
 537                 c->linkhover = copystr(&c->linkhover, l);
 538         } else if(c->linkhover) {
 539                 free(c->linkhover);
 540                 c->linkhover = NULL;
 541         }
 542         update(c);
 543 }
 544
 545 static void
 546 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 547         WebKitWebFrame *frame;
 548         WebKitWebDataSource *src;
 549         WebKitNetworkRequest *request;
 550         SoupMessage *msg;
 551         char *uri;
 552
 553         switch(webkit_web_view_get_load_status (c->view)) {
 554         case WEBKIT_LOAD_COMMITTED:
 555                 uri = geturi(c);
 556                 if(strstr(uri, "https://") == uri) {
 557                         frame = webkit_web_view_get_main_frame(c->view);
 558                         src = webkit_web_frame_get_data_source(frame);
 559                         request = webkit_web_data_source_get_request(src);
 560                         msg = webkit_network_request_get_message(request);
 561                         c->sslfailed = soup_message_get_flags(msg)
 562                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 563                 }
 564                 setatom(c, AtomUri, uri);
 565                 break;
 566         case WEBKIT_LOAD_FINISHED:
 567                 c->progress = 100;
 568                 update(c);
 569                 break;
 570         default:
 571                 break;
 572         }
 573 }
 574
 575 static void
 576 loaduri(Client *c, const Arg *arg) {
 577         char *u, *rp;
 578         const char *uri = (char *)arg->v;
 579         Arg a = { .b = FALSE };
 580
 581         if(strcmp(uri, "") == 0)
 582                 return;
 583
 584         /* In case it's a file path. */
 585         if(uri[0] == '/') {
 586                 rp = realpath(uri, NULL);
 587                 u = g_strdup_printf("file://%s", rp);
 588                 free(rp);
 589         } else {
 590                 u = g_strrstr(uri, "://") ? g_strdup(uri)
 591                         : g_strdup_printf("http://%s", uri);
 592         }
 593
 594         /* prevents endless loop */
 595         if(c->uri && strcmp(u, c->uri) == 0) {
 596                 reload(c, &a);
 597         } else {
 598                 webkit_web_view_load_uri(c->view, u);
 599                 c->progress = 0;
 600                 c->title = copystr(&c->title, u);
 601                 g_free(u);
 602                 update(c);
 603         }
 604 }
 605
 606 static void
 607 navigate(Client *c, const Arg *arg) {
 608         int steps = *(int *)arg;
 609         webkit_web_view_go_back_or_forward(c->view, steps);
 610 }
 611
 612 static Client *
 613 newclient(void) {
 614         Client *c;
 615         WebKitWebSettings *settings;
 616         WebKitWebFrame *frame;
 617         GdkGeometry hints = { 1, 1 };
 618         char *uri, *ua;
 619
 620         if(!(c = calloc(1, sizeof(Client))))
 621                 die("Cannot malloc!\n");
 622
 623         /* Window */
 624         if(embed) {
 625                 c->win = gtk_plug_new(embed);
 626         } else {
 627                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 628
 629                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 630                  * is always correct, so we should still call this function.
 631                  * But when doing so, we *must* differentiate between a
 632                  * WM_CLASS and a resource on the window.  By convention, the
 633                  * window class (WM_CLASS) is capped, while the resource is in
 634                  * lowercase.   Both these values come as a pair.
 635                  */
 636                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 637
 638                 /* TA:  20091214:  And set the role here as well -- so that
 639                  * sessions can pick this up.
 640                  */
 641                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 642         }
 643         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 644         g_signal_connect(G_OBJECT(c->win),
 645                         "destroy",
 646                         G_CALLBACK(destroywin), c);
 647         if(!kioskmode) {
 648                 g_signal_connect(G_OBJECT(c->win),
 649                                 "key-press-event",
 650                                 G_CALLBACK(keypress), c);
 651         }
 652
 653         /* Pane */
 654         c->pane = gtk_vpaned_new();
 655
 656         /* VBox */
 657         c->vbox = gtk_vbox_new(FALSE, 0);
 658         gtk_paned_pack1(GTK_PANED(c->pane), c->vbox, TRUE, TRUE);
 659
 660         /* Webview */
 661         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 662
 663         g_signal_connect(G_OBJECT(c->view),
 664                         "title-changed",
 665                         G_CALLBACK(titlechange), c);
 666         g_signal_connect(G_OBJECT(c->view),
 667                         "hovering-over-link",
 668                         G_CALLBACK(linkhover), c);
 669         g_signal_connect(G_OBJECT(c->view),
 670                         "create-web-view",
 671                         G_CALLBACK(createwindow), c);
 672         g_signal_connect(G_OBJECT(c->view),
 673                         "new-window-policy-decision-requested",
 674                         G_CALLBACK(decidewindow), c);
 675         g_signal_connect(G_OBJECT(c->view),
 676                         "mime-type-policy-decision-requested",
 677                         G_CALLBACK(decidedownload), c);
 678         g_signal_connect(G_OBJECT(c->view),
 679                         "window-object-cleared",
 680                         G_CALLBACK(windowobjectcleared), c);
 681         g_signal_connect(G_OBJECT(c->view),
 682                         "notify::load-status",
 683                         G_CALLBACK(loadstatuschange), c);
 684         g_signal_connect(G_OBJECT(c->view),
 685                         "notify::progress",
 686                         G_CALLBACK(progresschange), c);
 687         g_signal_connect(G_OBJECT(c->view),
 688                         "download-requested",
 689                         G_CALLBACK(initdownload), c);
 690         g_signal_connect(G_OBJECT(c->view),
 691                         "button-release-event",
 692                         G_CALLBACK(buttonrelease), c);
 693         g_signal_connect(G_OBJECT(c->view),
 694                         "populate-popup",
 695                         G_CALLBACK(populatepopup), c);
 696         g_signal_connect(G_OBJECT(c->view),
 697                         "resource-request-starting",
 698                         G_CALLBACK(beforerequest), c);
 699
 700         /* Scrolled Window */
 701         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 702
 703         frame = webkit_web_view_get_main_frame(WEBKIT_WEB_VIEW(c->view));
 704         g_signal_connect(G_OBJECT(frame), "scrollbars-policy-changed",
 705                         G_CALLBACK(gtk_true), NULL);
 706
 707         if(!enablescrollbars) {
 708                 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 709                                 GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 710         } else {
 711                 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 712                                 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 713         }
 714
 715         /* Arranging */
 716         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 717         gtk_container_add(GTK_CONTAINER(c->win), c->pane);
 718         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 719
 720         /* Setup */
 721         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE,
 722                         TRUE, 0, GTK_PACK_START);
 723         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 724         gtk_widget_show(c->pane);
 725         gtk_widget_show(c->vbox);
 726         gtk_widget_show(c->scroll);
 727         gtk_widget_show(GTK_WIDGET(c->view));
 728         gtk_widget_show(c->win);
 729         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints,
 730                         GDK_HINT_MIN_SIZE);
 731         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 732         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 733         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 734
 735         runscript(frame);
 736
 737         settings = webkit_web_view_get_settings(c->view);
 738         if(!(ua = getenv("SURF_USERAGENT")))
 739                 ua = useragent;
 740         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 741         uri = g_strconcat("file://", stylefile, NULL);
 742         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 743         g_object_set(G_OBJECT(settings), "auto-load-images", loadimages,
 744                         NULL);
 745         g_object_set(G_OBJECT(settings), "enable-plugins", enableplugins,
 746                         NULL);
 747         g_object_set(G_OBJECT(settings), "enable-scripts", enablescripts,
 748                         NULL);
 749         g_object_set(G_OBJECT(settings), "enable-spatial-navigation",
 750                         enablespatialbrowsing, NULL);
 751         g_object_set(G_OBJECT(settings), "enable-developer-extras",
 752                         enableinspector, NULL);
 753         g_object_set(G_OBJECT(settings), "enable-default-context-menu",
 754                         kioskmode ^ 1, NULL);
 755         g_object_set(G_OBJECT(settings), "default-font-size",
 756                         defaultfontsize, NULL);
 757
 758         if(enableinspector) {
 759                 c->inspector = WEBKIT_WEB_INSPECTOR(
 760                                 webkit_web_view_get_inspector(c->view));
 761                 g_signal_connect(G_OBJECT(c->inspector), "inspect-web-view",
 762                                 G_CALLBACK(inspector_new), c);
 763                 g_signal_connect(G_OBJECT(c->inspector), "show-window",
 764                                 G_CALLBACK(inspector_show), c);
 765                 g_signal_connect(G_OBJECT(c->inspector), "close-window",
 766                                 G_CALLBACK(inspector_close), c);
 767                 g_signal_connect(G_OBJECT(c->inspector), "finished",
 768                                 G_CALLBACK(inspector_finished), c);
 769                 c->isinspecting = false;
 770         }
 771
 772         g_free(uri);
 773
 774         setatom(c, AtomFind, "");
 775         setatom(c, AtomUri, "about:blank");
 776         if(hidebackground)
 777                 webkit_web_view_set_transparent(c->view, TRUE);
 778
 779         c->title = NULL;
 780         c->next = clients;
 781         clients = c;
 782
 783         if(showxid) {
 784                 gdk_display_sync(gtk_widget_get_display(c->win));
 785                 printf("%u\n",
 786                         (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 787                 fflush(NULL);
 788                 if (fclose(stdout) != 0) {
 789                         die("Error closing stdout");
 790                 }
 791         }
 792
 793         return c;
 794 }
 795
 796 static void
 797 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 798         guint i = 0;
 799         const char *cmd[12], *uri;
 800         const Arg a = { .v = (void *)cmd };
 801         char tmp[64];
 802
 803         cmd[i++] = argv0;
 804         if(!enablescrollbars)
 805                 cmd[i++] = "-b";
 806         if(embed && !noembed) {
 807                 cmd[i++] = "-e";
 808                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 809                 cmd[i++] = tmp;
 810         }
 811         if(!loadimages)
 812                 cmd[i++] = "-i";
 813         if(kioskmode)
 814                 cmd[i++] = "-k";
 815         if(!enableplugins)
 816                 cmd[i++] = "-p";
 817         if(!enablescripts)
 818                 cmd[i++] = "-s";
 819         if(showxid)
 820                 cmd[i++] = "-x";
 821         cmd[i++] = "--";
 822         uri = arg->v ? (char *)arg->v : c->linkhover;
 823         if(uri)
 824                 cmd[i++] = uri;
 825         cmd[i++] = NULL;
 826         spawn(NULL, &a);
 827 }
 828
 829 static void
 830 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c) {
 831         GList *items = gtk_container_get_children(GTK_CONTAINER(menu));
 832
 833         for(GList *l = items; l; l = l->next) {
 834                 g_signal_connect(l->data, "activate", G_CALLBACK(popupactivate), c);
 835         }
 836
 837         g_list_free(items);
 838 }
 839
 840 static void
 841 popupactivate(GtkMenuItem *menu, Client *c) {
 842         /*
 843          * context-menu-action-2000     open link
 844          * context-menu-action-1        open link in window
 845          * context-menu-action-2        download linked file
 846          * context-menu-action-3        copy link location
 847          * context-menu-action-13       reload
 848          * context-menu-action-10       back
 849          * context-menu-action-11       forward
 850          * context-menu-action-12       stop
 851          */
 852
 853         GtkAction *a = NULL;
 854         const char *name;
 855         GtkClipboard *prisel;
 856
 857         a = gtk_activatable_get_related_action(GTK_ACTIVATABLE(menu));
 858         if(a == NULL)
 859                 return;
 860
 861         name = gtk_action_get_name(a);
 862         if(!g_strcmp0(name, "context-menu-action-3")) {
 863                 prisel = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 864                 gtk_clipboard_set_text(prisel, c->linkhover, -1);
 865         }
 866 }
 867
 868 static void
 869 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 870         Arg arg = {.v = text };
 871         if(text != NULL)
 872                 loaduri((Client *) d, &arg);
 873 }
 874
 875 static void
 876 print(Client *c, const Arg *arg) {
 877         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 878 }
 879
 880 static GdkFilterReturn
 881 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 882         Client *c = (Client *)d;
 883         XPropertyEvent *ev;
 884         Arg arg;
 885
 886         if(((XEvent *)e)->type == PropertyNotify) {
 887                 ev = &((XEvent *)e)->xproperty;
 888                 if(ev->state == PropertyNewValue) {
 889                         if(ev->atom == atoms[AtomFind]) {
 890                                 arg.b = TRUE;
 891                                 find(c, &arg);
 892                                 return GDK_FILTER_REMOVE;
 893                         }
 894                         else if(ev->atom == atoms[AtomGo]) {
 895                                 arg.v = getatom(c, AtomGo);
 896                                 loaduri(c, &arg);
 897                                 return GDK_FILTER_REMOVE;
 898                         }
 899                 }
 900         }
 901         return GDK_FILTER_CONTINUE;
 902 }
 903
 904 static void
 905 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 906         c->progress = webkit_web_view_get_progress(c->view) * 100;
 907         update(c);
 908 }
 909
 910 static void
 911 reload(Client *c, const Arg *arg) {
 912         gboolean nocache = *(gboolean *)arg;
 913         if(nocache) {
 914                  webkit_web_view_reload_bypass_cache(c->view);
 915         } else {
 916                  webkit_web_view_reload(c->view);
 917         }
 918 }
 919
 920 static void
 921 scroll_h(Client *c, const Arg *arg) {
 922         scroll(gtk_scrolled_window_get_hadjustment(
 923                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 924 }
 925
 926 static void
 927 scroll_v(Client *c, const Arg *arg) {
 928         scroll(gtk_scrolled_window_get_vadjustment(
 929                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 930 }
 931
 932 static void
 933 scroll(GtkAdjustment *a, const Arg *arg) {
 934         gdouble v;
 935
 936         v = gtk_adjustment_get_value(a);
 937         switch (arg->i){
 938         case +10000:
 939         case -10000:
 940                 v += gtk_adjustment_get_page_increment(a) *
 941                         (arg->i / 10000);
 942                 break;
 943         case +20000:
 944         case -20000:
 945         default:
 946                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 947         }
 948
 949         v = MAX(v, 0.0);
 950         v = MIN(v, gtk_adjustment_get_upper(a) -
 951                         gtk_adjustment_get_page_size(a));
 952         gtk_adjustment_set_value(a, v);
 953 }
 954
 955 static void
 956 setatom(Client *c, int a, const char *v) {
 957         XSync(dpy, False);
 958         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 959                         atoms[a], XA_STRING, 8, PropModeReplace,
 960                         (unsigned char *)v, strlen(v) + 1);
 961 }
 962
 963 static void
 964 setup(void) {
 965         char *proxy;
 966         char *new_proxy;
 967         SoupURI *puri;
 968         SoupSession *s;
 969
 970         /* clean up any zombies immediately */
 971         sigchld(0);
 972         gtk_init(NULL, NULL);
 973
 974         dpy = GDK_DISPLAY();
 975
 976         /* atoms */
 977         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 978         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 979         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 980
 981         /* dirs and files */
 982         cookiefile = buildpath(cookiefile);
 983         scriptfile = buildpath(scriptfile);
 984         stylefile = buildpath(stylefile);
 985
 986         /* request handler */
 987         s = webkit_get_default_session();
 988
 989         /* cookie jar */
 990         soup_session_add_feature(s,
 991                         SOUP_SESSION_FEATURE(cookiejar_new(cookiefile,
 992                                         FALSE)));
 993
 994         /* ssl */
 995         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
 996         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
 997
 998         /* proxy */
 999         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
1000                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
1001                         g_strdup_printf("http://%s", proxy);
1002                 puri = soup_uri_new(new_proxy);
1003                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
1004                 soup_uri_free(puri);
1005                 g_free(new_proxy);
1006                 usingproxy = 1;
1007         }
1008 }
1009
1010 static void
1011 sigchld(int unused) {
1012         if(signal(SIGCHLD, sigchld) == SIG_ERR)
1013                 die("Can't install SIGCHLD handler");
1014         while(0 < waitpid(-1, NULL, WNOHANG));
1015 }
1016
1017 static void
1018 source(Client *c, const Arg *arg) {
1019         Arg a = { .b = FALSE };
1020         gboolean s;
1021
1022         s = webkit_web_view_get_view_source_mode(c->view);
1023         webkit_web_view_set_view_source_mode(c->view, !s);
1024         reload(c, &a);
1025 }
1026
1027 static void
1028 spawn(Client *c, const Arg *arg) {
1029         if(fork() == 0) {
1030                 if(dpy)
1031                         close(ConnectionNumber(dpy));
1032                 setsid();
1033                 execvp(((char **)arg->v)[0], (char **)arg->v);
1034                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
1035                 perror(" failed");
1036                 exit(0);
1037         }
1038 }
1039
1040 static void
1041 eval(Client *c, const Arg *arg) {
1042         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
1043         evalscript(webkit_web_frame_get_global_context(frame),
1044                         ((char **)arg->v)[0], "");
1045 }
1046
1047 static void
1048 stop(Client *c, const Arg *arg) {
1049         webkit_web_view_stop_loading(c->view);
1050 }
1051
1052 static void
1053 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
1054         c->title = copystr(&c->title, t);
1055         update(c);
1056 }
1057
1058 static void
1059 toggle(Client *c, const Arg *arg) {
1060         WebKitWebSettings *settings;
1061         char *name = (char *)arg->v;
1062         gboolean value;
1063         Arg a = { .b = FALSE };
1064
1065         settings = webkit_web_view_get_settings(c->view);
1066         g_object_get(G_OBJECT(settings), name, &value, NULL);
1067         g_object_set(G_OBJECT(settings), name, !value, NULL);
1068
1069         reload(c,&a);
1070 }
1071
1072 static void
1073 twitch(Client *c, const Arg *arg) {
1074         GtkAdjustment *a;
1075         gdouble v;
1076
1077         a = gtk_scrolled_window_get_vadjustment(
1078                         GTK_SCROLLED_WINDOW(c->scroll));
1079
1080         v = gtk_adjustment_get_value(a);
1081
1082         v += arg->i;
1083
1084         v = MAX(v, 0.0);
1085         v = MIN(v, gtk_adjustment_get_upper(a) -
1086                         gtk_adjustment_get_page_size(a));
1087         gtk_adjustment_set_value(a, v);
1088 }
1089
1090 static void
1091 togglescrollbars(Client *c, const Arg *arg) {
1092         GtkPolicyType vspolicy;
1093         Arg a;
1094
1095         gtk_scrolled_window_get_policy(GTK_SCROLLED_WINDOW(c->scroll), NULL, &vspolicy);
1096
1097         if(vspolicy == GTK_POLICY_AUTOMATIC) {
1098                 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
1099                                 GTK_POLICY_NEVER, GTK_POLICY_NEVER);
1100         } else {
1101                 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
1102                                 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
1103                 a.i = +1;
1104                 twitch(c, &a);
1105                 a.i = -1;
1106                 twitch(c, &a);
1107         }
1108 }
1109
1110 static void
1111 togglestyle(Client *c, const Arg *arg) {
1112         WebKitWebSettings *settings;
1113         char *uri;
1114
1115         settings = webkit_web_view_get_settings(c->view);
1116         g_object_get(G_OBJECT(settings), "user-stylesheet-uri", &uri, NULL);
1117         uri = uri[0] ? g_strdup("") : g_strconcat("file://", stylefile, NULL);
1118         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
1119
1120         update(c);
1121 }
1122
1123 static void
1124 gettogglestat(Client *c){
1125         gboolean value;
1126         char *uri;
1127         WebKitWebSettings *settings = webkit_web_view_get_settings(c->view);
1128
1129         g_object_get(G_OBJECT(settings), "enable-caret-browsing",
1130                         &value, NULL);
1131         togglestat[0] = value? 'C': 'c';
1132
1133         g_object_get(G_OBJECT(settings), "auto-load-images", &value, NULL);
1134         togglestat[1] = value? 'I': 'i';
1135
1136         g_object_get(G_OBJECT(settings), "enable-scripts", &value, NULL);
1137         togglestat[2] = value? 'S': 's';
1138
1139         g_object_get(G_OBJECT(settings), "enable-plugins", &value, NULL);
1140         togglestat[3] = value? 'V': 'v';
1141
1142         g_object_get(G_OBJECT(settings), "user-stylesheet-uri", &uri, NULL);
1143         togglestat[4] = uri[0] ? 'M': 'm';
1144
1145         togglestat[5] = '\0';
1146 }
1147
1148 static void
1149 getpagestat(Client *c) {
1150         const char *uri = geturi(c);
1151
1152         if(strstr(uri, "https://") == uri) {
1153                 pagestat[0] = c->sslfailed ? 'U' : 'T';
1154         } else {
1155                 pagestat[0] = '-';
1156         }
1157
1158         pagestat[1] = usingproxy ? 'P' : '-';
1159         pagestat[2] = '\0';
1160
1161 }
1162
1163 static void
1164 update(Client *c) {
1165         char *t;
1166
1167         gettogglestat(c);
1168         getpagestat(c);
1169
1170         if(c->linkhover) {
1171                 t = g_strdup_printf("%s:%s | %s", togglestat, pagestat, c->linkhover);
1172         } else if(c->progress != 100) {
1173                 t = g_strdup_printf("[%i%%] %s:%s | %s", c->progress, togglestat,
1174                         pagestat, c->title);
1175         } else {
1176                 t = g_strdup_printf("%s:%s | %s", togglestat, pagestat, c->title);
1177         }
1178
1179         gtk_window_set_title(GTK_WINDOW(c->win), t);
1180         g_free(t);
1181 }
1182
1183 static void
1184 updatewinid(Client *c) {
1185         snprintf(winid, LENGTH(winid), "%u",
1186                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
1187 }
1188
1189 static void
1190 usage(void) {
1191         die("usage: %s [-biknpsvx] [-c cookiefile] [-e xid] [-r scriptfile]"
1192                 " [-t stylefile] [-u useragent] [uri]\n", basename(argv0));
1193 }
1194
1195 static void
1196 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js,
1197                 JSObjectRef win, Client *c) {
1198         runscript(frame);
1199 }
1200
1201 static void
1202 zoom(Client *c, const Arg *arg) {
1203         c->zoomed = TRUE;
1204         if(arg->i < 0) {
1205                 /* zoom out */
1206                 webkit_web_view_zoom_out(c->view);
1207         } else if(arg->i > 0) {
1208                 /* zoom in */
1209                 webkit_web_view_zoom_in(c->view);
1210         } else {
1211                 /* reset */
1212                 c->zoomed = FALSE;
1213                 webkit_web_view_set_zoom_level(c->view, 1.0);
1214         }
1215 }
1216
1217 int
1218 main(int argc, char *argv[]) {
1219         Arg arg;
1220
1221         memset(&arg, 0, sizeof(arg));
1222
1223         /* command line args */
1224         ARGBEGIN {
1225         case 'b':
1226                 enablescrollbars = 0;
1227                 break;
1228         case 'c':
1229                 cookiefile = EARGF(usage());
1230                 break;
1231         case 'e':
1232                 embed = strtol(EARGF(usage()), NULL, 0);
1233                 break;
1234         case 'i':
1235                 loadimages = 0;
1236                 break;
1237         case 'k':
1238                 kioskmode = 1;
1239                 break;
1240         case 'n':
1241                 enableinspector = 0;
1242                 break;
1243         case 'p':
1244                 enableplugins = 0;
1245                 break;
1246         case 'r':
1247                 scriptfile = EARGF(usage());
1248                 break;
1249         case 's':
1250                 enablescripts = 0;
1251                 break;
1252         case 't':
1253                 stylefile = EARGF(usage());
1254                 break;
1255         case 'u':
1256                 useragent = EARGF(usage());
1257                 break;
1258         case 'v':
1259                 die("surf-"VERSION", ©2009-2012 surf engineers, "
1260                                 "see LICENSE for details\n");
1261         case 'x':
1262                 showxid = TRUE;
1263                 break;
1264         default:
1265                 usage();
1266         } ARGEND;
1267         if(argc > 0)
1268                 arg.v = argv[0];
1269
1270         setup();
1271         newclient();
1272         if(arg.v)
1273                 loaduri(clients, &arg);
1274
1275         gtk_main();
1276         cleanup();
1277
1278         return EXIT_SUCCESS;
1279 }
1280