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