surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <sys/file.h>
   6 #include <sys/types.h>
   7 #include <sys/wait.h>
   8 #include <libgen.h>
   9 #include <limits.h>
  10 #include <pwd.h>
  11 #include <regex.h>
  12 #include <signal.h>
  13 #include <stdarg.h>
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include <unistd.h>
  18
  19 #include <gdk/gdk.h>
  20 #include <gdk/gdkkeysyms.h>
  21 #include <gdk/gdkx.h>
  22 #include <glib/gstdio.h>
  23 #include <gtk/gtk.h>
  24 #include <gtk/gtkx.h>
  25 #include <JavaScriptCore/JavaScript.h>
  26 #include <webkit2/webkit2.h>
  27 #include <X11/X.h>
  28 #include <X11/Xatom.h>
  29
  30 #include "arg.h"
  31
  32 #define LENGTH(x)               (sizeof(x) / sizeof(x[0]))
  33 #define CLEANMASK(mask)         (mask & (MODKEY|GDK_SHIFT_MASK))
  34 #define SETB(p, s)              [p] = { { .b = s }, }
  35 #define SETI(p, s)              [p] = { { .i = s }, }
  36 #define SETV(p, s)              [p] = { { .v = s }, }
  37 #define SETF(p, s)              [p] = { { .f = s }, }
  38 #define FSETB(p, s)             [p] = { { .b = s }, 1 }
  39 #define FSETI(p, s)             [p] = { { .i = s }, 1 }
  40 #define FSETV(p, s)             [p] = { { .v = s }, 1 }
  41 #define FSETF(p, s)             [p] = { { .f = s }, 1 }
  42 #define CSETB(p, s)             [p] = (Parameter){ { .b = s }, 1 }
  43 #define CSETI(p, s)             [p] = (Parameter){ { .i = s }, 1 }
  44 #define CSETV(p, s)             [p] = (Parameter){ { .v = s }, 1 }
  45 #define CSETF(p, s)             [p] = (Parameter){ { .f = s }, 1 }
  46
  47 enum { AtomFind, AtomGo, AtomUri, AtomLast };
  48
  49 enum {
  50         OnDoc   = WEBKIT_HIT_TEST_RESULT_CONTEXT_DOCUMENT,
  51         OnLink  = WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK,
  52         OnImg   = WEBKIT_HIT_TEST_RESULT_CONTEXT_IMAGE,
  53         OnMedia = WEBKIT_HIT_TEST_RESULT_CONTEXT_MEDIA,
  54         OnEdit  = WEBKIT_HIT_TEST_RESULT_CONTEXT_EDITABLE,
  55         OnBar   = WEBKIT_HIT_TEST_RESULT_CONTEXT_SCROLLBAR,
  56         OnSel   = WEBKIT_HIT_TEST_RESULT_CONTEXT_SELECTION,
  57         OnAny   = OnDoc | OnLink | OnImg | OnMedia | OnEdit | OnBar | OnSel,
  58 };
  59
  60 typedef enum {
  61         CaretBrowsing,
  62         CookiePolicies,
  63         DiskCache,
  64         DNSPrefetch,
  65         FontSize,
  66         FrameFlattening,
  67         Geolocation,
  68         HideBackground,
  69         Inspector,
  70         JavaScript,
  71         KioskMode,
  72         LoadImages,
  73         Plugins,
  74         PreferredLanguages,
  75         RunInFullscreen,
  76         ScrollBars,
  77         ShowIndicators,
  78         SpellChecking,
  79         SpellLanguages,
  80         StrictSSL,
  81         Style,
  82         ZoomLevel,
  83         ParameterLast,
  84 } ParamName;
  85
  86 typedef union {
  87         int b;
  88         int i;
  89         float f;
  90         const void *v;
  91 } Arg;
  92
  93 typedef struct {
  94         Arg val;
  95         int force;
  96 } Parameter;
  97
  98 typedef struct Client {
  99         GtkWidget *win;
 100         WebKitWebView *view;
 101         WebKitWebInspector *inspector;
 102         WebKitFindController *finder;
 103         WebKitHitTestResult *mousepos;
 104         GTlsCertificateFlags tlsflags;
 105         Window xid;
 106         int progress, fullscreen;
 107         const char *title, *overtitle, *targeturi;
 108         const char *needle;
 109         struct Client *next;
 110 } Client;
 111
 112 typedef struct {
 113         guint mod;
 114         guint keyval;
 115         void (*func)(Client *c, const Arg *a);
 116         const Arg arg;
 117 } Key;
 118
 119 typedef struct {
 120         unsigned int target;
 121         unsigned int mask;
 122         guint button;
 123         void (*func)(Client *c, const Arg *a, WebKitHitTestResult *h);
 124         const Arg arg;
 125         unsigned int stopevent;
 126 } Button;
 127
 128 typedef struct {
 129         const char *uri;
 130         Parameter config[ParameterLast];
 131         regex_t re;
 132 } UriParameters;
 133
 134 typedef struct {
 135         char *regex;
 136         char *style;
 137         regex_t re;
 138 } SiteStyle;
 139
 140 /* Surf */
 141 static void usage(void);
 142 static void die(const char *errstr, ...);
 143 static void setup(void);
 144 static void sigchld(int unused);
 145 static char *buildfile(const char *path);
 146 static char *buildpath(const char *path);
 147 static Client *newclient(Client *c);
 148 static void loaduri(Client *c, const Arg *a);
 149 static const char *geturi(Client *c);
 150 static void setatom(Client *c, int a, const char *v);
 151 static const char *getatom(Client *c, int a);
 152 static void updatetitle(Client *c);
 153 static void gettogglestats(Client *c);
 154 static void getpagestats(Client *c);
 155 static WebKitCookieAcceptPolicy cookiepolicy_get(void);
 156 static char cookiepolicy_set(const WebKitCookieAcceptPolicy p);
 157 static void seturiparameters(Client *c, const char *uri);
 158 static void setparameter(Client *c, int refresh, ParamName p, const Arg *a);
 159 static const char *getstyle(const char *uri);
 160 static void setstyle(Client *c, const char *stylefile);
 161 static void runscript(Client *c);
 162 static void evalscript(Client *c, const char *jsstr, ...);
 163 static void updatewinid(Client *c);
 164 static void handleplumb(Client *c, const char *uri);
 165 static void newwindow(Client *c, const Arg *a, int noembed);
 166 static void spawn(Client *c, const Arg *a);
 167 static void destroyclient(Client *c);
 168 static void cleanup(void);
 169
 170 /* GTK/WebKit */
 171 static GdkDevice *getkbdevice(void);
 172 static WebKitWebView *newview(Client *c, WebKitWebView *rv);
 173 static GtkWidget *createview(WebKitWebView *v, WebKitNavigationAction *a,
 174                              Client *c);
 175 static gboolean buttonreleased(GtkWidget *w, GdkEvent *e, Client *c);
 176 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event,
 177                                 gpointer d);
 178 static gboolean winevent(GtkWidget *w, GdkEvent *e, Client *c);
 179 static void showview(WebKitWebView *v, Client *c);
 180 static GtkWidget *createwindow(Client *c);
 181 static void loadchanged(WebKitWebView *v, WebKitLoadEvent e, Client *c);
 182 static void progresschanged(WebKitWebView *v, GParamSpec *ps, Client *c);
 183 static void titlechanged(WebKitWebView *view, GParamSpec *ps, Client *c);
 184 static void mousetargetchanged(WebKitWebView *v, WebKitHitTestResult *h,
 185                                guint modifiers, Client *c);
 186 static gboolean permissionrequested(WebKitWebView *v,
 187                                     WebKitPermissionRequest *r, Client *c);
 188 static gboolean decidepolicy(WebKitWebView *v, WebKitPolicyDecision *d,
 189                              WebKitPolicyDecisionType dt, Client *c);
 190 static void decidenavigation(WebKitPolicyDecision *d, Client *c);
 191 static void decidenewwindow(WebKitPolicyDecision *d, Client *c);
 192 static void decideresource(WebKitPolicyDecision *d, Client *c);
 193 static void downloadstarted(WebKitWebContext *wc, WebKitDownload *d,
 194                             Client *c);
 195 static void responsereceived(WebKitDownload *d, GParamSpec *ps, Client *c);
 196 static void download(Client *c, WebKitURIResponse *r);
 197 static void closeview(WebKitWebView *v, Client *c);
 198 static void destroywin(GtkWidget* w, Client *c);
 199
 200 /* Hotkeys */
 201 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 202 static void reload(Client *c, const Arg *a);
 203 static void print(Client *c, const Arg *a);
 204 static void clipboard(Client *c, const Arg *a);
 205 static void zoom(Client *c, const Arg *a);
 206 static void scroll(Client *c, const Arg *a);
 207 static void navigate(Client *c, const Arg *a);
 208 static void stop(Client *c, const Arg *a);
 209 static void toggle(Client *c, const Arg *a);
 210 static void togglefullscreen(Client *c, const Arg *a);
 211 static void togglecookiepolicy(Client *c, const Arg *a);
 212 static void toggleinspector(Client *c, const Arg *a);
 213 static void find(Client *c, const Arg *a);
 214
 215 /* Buttons */
 216 static void clicknavigate(Client *c, const Arg *a, WebKitHitTestResult *h);
 217 static void clicknewwindow(Client *c, const Arg *a, WebKitHitTestResult *h);
 218 static void clickexternplayer(Client *c, const Arg *a, WebKitHitTestResult *h);
 219
 220 static char winid[64];
 221 static char togglestats[10];
 222 static char pagestats[2];
 223 static Atom atoms[AtomLast];
 224 static Window embed;
 225 static int showxid;
 226 static int cookiepolicy;
 227 static Display *dpy;
 228 static Client *clients;
 229 static GdkDevice *gdkkb;
 230 static char *stylefile;
 231 static const char *useragent;
 232 static Parameter *curconfig;
 233 char *argv0;
 234
 235 /* configuration, allows nested code to access above variables */
 236 #include "config.h"
 237
 238 void
 239 usage(void)
 240 {
 241         die("usage: %s [-bBdDfFgGiIkKmMnNpPsSvx] [-a cookiepolicies ] "
 242             "[-c cookiefile] [-e xid] [-r scriptfile] [-t stylefile] "
 243             "[-u useragent] [-z zoomlevel] [uri]\n", basename(argv0));
 244 }
 245
 246 void
 247 die(const char *errstr, ...)
 248 {
 249         va_list ap;
 250
 251         va_start(ap, errstr);
 252         vfprintf(stderr, errstr, ap);
 253         va_end(ap);
 254         exit(1);
 255 }
 256
 257 void
 258 setup(void)
 259 {
 260         int i, j;
 261
 262         /* clean up any zombies immediately */
 263         sigchld(0);
 264         gtk_init(NULL, NULL);
 265
 266         dpy = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
 267
 268         curconfig = defconfig;
 269
 270         /* atoms */
 271         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 272         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 273         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 274
 275         /* dirs and files */
 276         cookiefile = buildfile(cookiefile);
 277         scriptfile = buildfile(scriptfile);
 278         cachedir   = buildpath(cachedir);
 279
 280         gdkkb = getkbdevice();
 281
 282         if (!stylefile) {
 283                 styledir = buildpath(styledir);
 284                 for (i = 0; i < LENGTH(styles); ++i) {
 285                         if (regcomp(&(styles[i].re), styles[i].regex,
 286                             REG_EXTENDED)) {
 287                                 fprintf(stderr,
 288                                         "Could not compile regex: %s\n",
 289                                         styles[i].regex);
 290                                 styles[i].regex = NULL;
 291                         }
 292                         styles[i].style = g_strconcat(styledir, "/",
 293                                                       styles[i].style, NULL);
 294                 }
 295                 g_free(styledir);
 296         } else {
 297                 stylefile = buildfile(stylefile);
 298         }
 299
 300         for (i = 0; i < LENGTH(uriparams); ++i) {
 301                 if (!regcomp(&(uriparams[i].re), uriparams[i].uri,
 302                     REG_EXTENDED)) {
 303                         /* copy default parameters if they are not already set
 304                          * or if they are forced */
 305                         for (j = 0; j < ParameterLast; ++j) {
 306                                 if (!uriparams[i].config[j].force ||
 307                                     defconfig[j].force)
 308                                         uriparams[i].config[j] = defconfig[j];
 309                         }
 310                 } else {
 311                         fprintf(stderr,
 312                                 "Could not compile regex: %s\n",
 313                                 uriparams[i].uri);
 314                         uriparams[i].uri = NULL;
 315                 }
 316         }
 317 }
 318
 319 void
 320 sigchld(int unused)
 321 {
 322         if (signal(SIGCHLD, sigchld) == SIG_ERR)
 323                 die("Can't install SIGCHLD handler");
 324         while (waitpid(-1, NULL, WNOHANG) > 0)
 325                 ;
 326 }
 327
 328 char *
 329 buildfile(const char *path)
 330 {
 331         char *dname, *bname, *bpath, *fpath;
 332         FILE *f;
 333
 334         dname = g_path_get_dirname(path);
 335         bname = g_path_get_basename(path);
 336
 337         bpath = buildpath(dname);
 338         g_free(dname);
 339
 340         fpath = g_build_filename(bpath, bname, NULL);
 341         g_free(bpath);
 342         g_free(bname);
 343
 344         if (!(f = fopen(fpath, "a")))
 345                 die("Could not open file: %s\n", fpath);
 346
 347         g_chmod(fpath, 0600); /* always */
 348         fclose(f);
 349
 350         return fpath;
 351 }
 352
 353 static const char*
 354 get_user_homedir(const char *user) {
 355         struct passwd *pw = getpwnam(user);
 356         if (!pw) {
 357                 die("Can't get user `%s' home directory.\n", user);
 358         }
 359         return pw->pw_dir;
 360 }
 361
 362 static const char*
 363 get_current_user_homedir() {
 364         const char *homedir;
 365         const char *user;
 366         struct passwd *pw;
 367
 368         homedir = getenv("HOME");
 369         if (homedir) {
 370                 return homedir;
 371         }
 372
 373         user = getenv("USER");
 374         if (user) {
 375                 return get_user_homedir(user);
 376         }
 377
 378         pw = getpwuid(getuid());
 379         if (!pw) {
 380                 die("Can't get current user home directory\n");
 381         }
 382         return pw->pw_dir;
 383 }
 384
 385 char *
 386 buildpath(const char *path)
 387 {
 388         char *apath, *name, *p, *fpath;
 389
 390         if (path[0] == '~') {
 391                 const char *homedir;
 392                 if (path[1] == '/' || path[1] == '\0') {
 393                         p = (char *)&path[1];
 394                         homedir = get_current_user_homedir();
 395                 } else {
 396                         if ((p = strchr(path, '/')))
 397                                 name = g_strndup(&path[1], --p - path);
 398                         else
 399                                 name = g_strdup(&path[1]);
 400
 401                         homedir = get_user_homedir(name);
 402                         g_free(name);
 403                 }
 404                 apath = g_build_filename(homedir, p, NULL);
 405         } else {
 406                 apath = g_strdup(path);
 407         }
 408
 409         /* creating directory */
 410         if (g_mkdir_with_parents(apath, 0700) < 0)
 411                 die("Could not access directory: %s\n", apath);
 412
 413         fpath = realpath(apath, NULL);
 414         g_free(apath);
 415
 416         return fpath;
 417 }
 418
 419 Client *
 420 newclient(Client *rc)
 421 {
 422         Client *c;
 423
 424         if (!(c = calloc(1, sizeof(Client))))
 425                 die("Cannot malloc!\n");
 426
 427         c->next = clients;
 428         clients = c;
 429
 430         c->progress = 100;
 431         c->tlsflags = G_TLS_CERTIFICATE_VALIDATE_ALL + 1;
 432         c->view = newview(c, rc ? rc->view : NULL);
 433
 434         return c;
 435 }
 436
 437 void
 438 loaduri(Client *c, const Arg *a)
 439 {
 440         struct stat st;
 441         char *url, *path;
 442         const char *uri = a->v;
 443
 444         if (g_strcmp0(uri, "") == 0)
 445                 return;
 446
 447         if (g_str_has_prefix(uri, "http://")  ||
 448             g_str_has_prefix(uri, "https://") ||
 449             g_str_has_prefix(uri, "file://")  ||
 450             g_str_has_prefix(uri, "about:")) {
 451                 url = g_strdup(uri);
 452         } else if (!stat(uri, &st) && (path = realpath(uri, NULL))) {
 453                 url = g_strdup_printf("file://%s", path);
 454                 free(path);
 455         } else {
 456                 url = g_strdup_printf("http://%s", uri);
 457         }
 458
 459         setatom(c, AtomUri, url);
 460
 461         if (strcmp(url, geturi(c)) == 0) {
 462                 reload(c, a);
 463         } else {
 464                 webkit_web_view_load_uri(c->view, url);
 465                 updatetitle(c);
 466         }
 467
 468         g_free(url);
 469 }
 470
 471 const char *
 472 geturi(Client *c)
 473 {
 474         const char *uri;
 475
 476         if (!(uri = webkit_web_view_get_uri(c->view)))
 477                 uri = "about:blank";
 478         return uri;
 479 }
 480
 481 void
 482 setatom(Client *c, int a, const char *v)
 483 {
 484         XSync(dpy, False);
 485         XChangeProperty(dpy, c->xid,
 486                         atoms[a], XA_STRING, 8, PropModeReplace,
 487                         (unsigned char *)v, strlen(v) + 1);
 488 }
 489
 490 const char *
 491 getatom(Client *c, int a)
 492 {
 493         static char buf[BUFSIZ];
 494         Atom adummy;
 495         int idummy;
 496         unsigned long ldummy;
 497         unsigned char *p = NULL;
 498
 499         XGetWindowProperty(dpy, c->xid, atoms[a], 0L, BUFSIZ, False, XA_STRING,
 500                            &adummy, &idummy, &ldummy, &ldummy, &p);
 501         if (p)
 502                 strncpy(buf, (char *)p, LENGTH(buf) - 1);
 503         else
 504                 buf[0] = '\0';
 505         XFree(p);
 506
 507         return buf;
 508 }
 509
 510 void
 511 updatetitle(Client *c)
 512 {
 513         char *title;
 514         const char *name = c->overtitle ? c->overtitle :
 515                            c->title ? c->title : "";
 516
 517         if (curconfig[ShowIndicators].val.b) {
 518                 gettogglestats(c);
 519                 getpagestats(c);
 520
 521                 if (c->progress != 100)
 522                         title = g_strdup_printf("[%i%%] %s:%s | %s",
 523                                 c->progress, togglestats, pagestats, name);
 524                 else
 525                         title = g_strdup_printf("%s:%s | %s",
 526                                 togglestats, pagestats, name);
 527
 528                 gtk_window_set_title(GTK_WINDOW(c->win), title);
 529                 g_free(title);
 530         } else {
 531                 gtk_window_set_title(GTK_WINDOW(c->win), name);
 532         }
 533 }
 534
 535 void
 536 gettogglestats(Client *c)
 537 {
 538         togglestats[0] = cookiepolicy_set(cookiepolicy_get());
 539         togglestats[1] = curconfig[CaretBrowsing].val.b ?   'C' : 'c';
 540         togglestats[2] = curconfig[Geolocation].val.b ?     'G' : 'g';
 541         togglestats[3] = curconfig[DiskCache].val.b ?       'D' : 'd';
 542         togglestats[4] = curconfig[LoadImages].val.b ?      'I' : 'i';
 543         togglestats[5] = curconfig[JavaScript].val.b ?      'S' : 's';
 544         togglestats[6] = curconfig[Plugins].val.b ?         'V' : 'v';
 545         togglestats[7] = curconfig[Style].val.b ?           'M' : 'm';
 546         togglestats[8] = curconfig[FrameFlattening].val.b ? 'F' : 'f';
 547         togglestats[9] = '\0';
 548 }
 549
 550 void
 551 getpagestats(Client *c)
 552 {
 553         pagestats[0] = c->tlsflags > G_TLS_CERTIFICATE_VALIDATE_ALL ? '-' :
 554                        c->tlsflags > 0 ? 'U' : 'T';
 555         pagestats[1] = '\0';
 556 }
 557
 558 WebKitCookieAcceptPolicy
 559 cookiepolicy_get(void)
 560 {
 561         switch (((char *)curconfig[CookiePolicies].val.v)[cookiepolicy]) {
 562         case 'a':
 563                 return WEBKIT_COOKIE_POLICY_ACCEPT_NEVER;
 564         case '@':
 565                 return WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY;
 566         default: /* fallthrough */
 567         case 'A':
 568                 return WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS;
 569         }
 570 }
 571
 572 char
 573 cookiepolicy_set(const WebKitCookieAcceptPolicy p)
 574 {
 575         switch (p) {
 576         case WEBKIT_COOKIE_POLICY_ACCEPT_NEVER:
 577                 return 'a';
 578         case WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY:
 579                 return '@';
 580         default: /* fallthrough */
 581         case WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS:
 582                 return 'A';
 583         }
 584 }
 585
 586 void
 587 seturiparameters(Client *c, const char *uri)
 588 {
 589         int i;
 590
 591         for (i = 0; i < LENGTH(uriparams); ++i) {
 592                 if (uriparams[i].uri &&
 593                     !regexec(&(uriparams[i].re), uri, 0, NULL, 0)) {
 594                         curconfig = uriparams[i].config;
 595                         break;
 596                 }
 597         }
 598
 599         for (i = 0; i < ParameterLast; ++i)
 600                 setparameter(c, 0, i, &curconfig[i].val);
 601 }
 602
 603 void
 604 setparameter(Client *c, int refresh, ParamName p, const Arg *a)
 605 {
 606         GdkRGBA bgcolor = { 0 };
 607         WebKitSettings *s = webkit_web_view_get_settings(c->view);
 608
 609         switch (p) {
 610         case CaretBrowsing:
 611                 webkit_settings_set_enable_caret_browsing(s, a->b);
 612                 refresh = 0;
 613                 break;
 614         case CookiePolicies:
 615                 webkit_cookie_manager_set_accept_policy(
 616                     webkit_web_context_get_cookie_manager(
 617                     webkit_web_view_get_context(c->view)),
 618                     cookiepolicy_get());
 619                 refresh = 0;
 620                 break;
 621         case DiskCache:
 622                 webkit_web_context_set_cache_model(
 623                     webkit_web_view_get_context(c->view), a->b ?
 624                     WEBKIT_CACHE_MODEL_WEB_BROWSER :
 625                     WEBKIT_CACHE_MODEL_DOCUMENT_VIEWER);
 626                 return; /* do not update */
 627         case DNSPrefetch:
 628                 webkit_settings_set_enable_dns_prefetching(s, a->b);
 629                 return; /* do not update */
 630         case FontSize:
 631                 webkit_settings_set_default_font_size(s, a->i);
 632                 return; /* do not update */
 633         case FrameFlattening:
 634                 webkit_settings_set_enable_frame_flattening(s, a->b);
 635                 break;
 636         case Geolocation:
 637                 refresh = 0;
 638                 break;
 639         case HideBackground:
 640                 if (a->b)
 641                         webkit_web_view_set_background_color(c->view, &bgcolor);
 642                 return; /* do not update */
 643         case Inspector:
 644                 webkit_settings_set_enable_developer_extras(s, a->b);
 645                 return; /* do not update */
 646         case JavaScript:
 647                 webkit_settings_set_enable_javascript(s, a->b);
 648                 break;
 649         case KioskMode:
 650                 return; /* do nothing */
 651         case LoadImages:
 652                 webkit_settings_set_auto_load_images(s, a->b);
 653                 break;
 654         case Plugins:
 655                 webkit_settings_set_enable_plugins(s, a->b);
 656                 break;
 657         case PreferredLanguages:
 658                 return; /* do nothing */
 659         case RunInFullscreen:
 660                 return; /* do nothing */
 661         case ScrollBars:
 662                 /* Disabled until we write some WebKitWebExtension for
 663                  * manipulating the DOM directly.
 664                 enablescrollbars = !enablescrollbars;
 665                 evalscript(c, "document.documentElement.style.overflow = '%s'",
 666                     enablescrollbars ? "auto" : "hidden");
 667                 */
 668                 return; /* do not update */
 669         case ShowIndicators:
 670                 break;
 671         case SpellChecking:
 672                 webkit_web_context_set_spell_checking_enabled(
 673                     webkit_web_view_get_context(c->view), a->b);
 674                 return; /* do not update */
 675         case SpellLanguages:
 676                 return; /* do nothing */
 677         case StrictSSL:
 678                 webkit_web_context_set_tls_errors_policy(
 679                     webkit_web_view_get_context(c->view), a->b ?
 680                     WEBKIT_TLS_ERRORS_POLICY_FAIL :
 681                     WEBKIT_TLS_ERRORS_POLICY_IGNORE);
 682                 return; /* do not update */
 683         case Style:
 684                 if (a->b)
 685                         setstyle(c, getstyle(geturi(c)));
 686                 else
 687                         webkit_user_content_manager_remove_all_style_sheets(
 688                             webkit_web_view_get_user_content_manager(c->view));
 689                 refresh = 0;
 690                 break;
 691         case ZoomLevel:
 692                 webkit_web_view_set_zoom_level(c->view, a->f);
 693                 return; /* do not update */
 694         default:
 695                 return; /* do nothing */
 696         }
 697
 698         updatetitle(c);
 699         if (refresh)
 700                 reload(c, a);
 701 }
 702
 703 const char *
 704 getstyle(const char *uri)
 705 {
 706         int i;
 707
 708         if (stylefile)
 709                 return stylefile;
 710
 711         for (i = 0; i < LENGTH(styles); ++i) {
 712                 if (styles[i].regex &&
 713                     !regexec(&(styles[i].re), uri, 0, NULL, 0))
 714                         return styles[i].style;
 715         }
 716
 717         return "";
 718 }
 719
 720 void
 721 setstyle(Client *c, const char *stylefile)
 722 {
 723         gchar *style;
 724
 725         if (!g_file_get_contents(stylefile, &style, NULL, NULL)) {
 726                 fprintf(stderr, "Could not read style file: %s\n", stylefile);
 727                 return;
 728         }
 729
 730         webkit_user_content_manager_add_style_sheet(
 731             webkit_web_view_get_user_content_manager(c->view),
 732             webkit_user_style_sheet_new(style,
 733             WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES,
 734             WEBKIT_USER_STYLE_LEVEL_USER,
 735             NULL, NULL));
 736
 737         g_free(style);
 738 }
 739
 740 void
 741 runscript(Client *c)
 742 {
 743         gchar *script;
 744         gsize l;
 745
 746         if (g_file_get_contents(scriptfile, &script, &l, NULL) && l)
 747                 evalscript(c, script);
 748         g_free(script);
 749 }
 750
 751 void
 752 evalscript(Client *c, const char *jsstr, ...)
 753 {
 754         va_list ap;
 755         gchar *script;
 756
 757         va_start(ap, jsstr);
 758         script = g_strdup_vprintf(jsstr, ap);
 759         va_end(ap);
 760
 761         webkit_web_view_run_javascript(c->view, script, NULL, NULL, NULL);
 762         g_free(script);
 763 }
 764
 765 void
 766 updatewinid(Client *c)
 767 {
 768         snprintf(winid, LENGTH(winid), "%lu", c->xid);
 769 }
 770
 771 void
 772 handleplumb(Client *c, const char *uri)
 773 {
 774         Arg a = (Arg)PLUMB(uri);
 775         spawn(c, &a);
 776 }
 777
 778 void
 779 newwindow(Client *c, const Arg *a, int noembed)
 780 {
 781         int i = 0;
 782         char tmp[64];
 783         const char *cmd[26], *uri;
 784         const Arg arg = { .v = cmd };
 785
 786         cmd[i++] = argv0;
 787         cmd[i++] = "-a";
 788         cmd[i++] = curconfig[CookiePolicies].val.v;
 789         cmd[i++] = curconfig[ScrollBars].val.b ? "-B" : "-b";
 790         if (cookiefile && g_strcmp0(cookiefile, "")) {
 791                 cmd[i++] = "-c";
 792                 cmd[i++] = cookiefile;
 793         }
 794         cmd[i++] = curconfig[DiskCache].val.b ? "-D" : "-d";
 795         if (embed && !noembed) {
 796                 cmd[i++] = "-e";
 797                 snprintf(tmp, LENGTH(tmp), "%lu", embed);
 798                 cmd[i++] = tmp;
 799         }
 800         cmd[i++] = curconfig[RunInFullscreen].val.b ? "-F" : "-f" ;
 801         cmd[i++] = curconfig[Geolocation].val.b ?     "-G" : "-g" ;
 802         cmd[i++] = curconfig[LoadImages].val.b ?      "-I" : "-i" ;
 803         cmd[i++] = curconfig[KioskMode].val.b ?       "-K" : "-k" ;
 804         cmd[i++] = curconfig[Style].val.b ?           "-M" : "-m" ;
 805         cmd[i++] = curconfig[Inspector].val.b ?       "-N" : "-n" ;
 806         cmd[i++] = curconfig[Plugins].val.b ?         "-P" : "-p" ;
 807         if (scriptfile && g_strcmp0(scriptfile, "")) {
 808                 cmd[i++] = "-r";
 809                 cmd[i++] = scriptfile;
 810         }
 811         cmd[i++] = curconfig[JavaScript].val.b ? "-S" : "-s";
 812         if (stylefile && g_strcmp0(stylefile, "")) {
 813                 cmd[i++] = "-t";
 814                 cmd[i++] = stylefile;
 815         }
 816         if (fulluseragent && g_strcmp0(fulluseragent, "")) {
 817                 cmd[i++] = "-u";
 818                 cmd[i++] = fulluseragent;
 819         }
 820         if (showxid)
 821                 cmd[i++] = "-x";
 822         /* do not keep zoom level */
 823         cmd[i++] = "--";
 824         if ((uri = a->v))
 825                 cmd[i++] = uri;
 826         cmd[i] = NULL;
 827
 828         spawn(c, &arg);
 829 }
 830
 831 void
 832 spawn(Client *c, const Arg *a)
 833 {
 834         if (fork() == 0) {
 835                 if (dpy)
 836                         close(ConnectionNumber(dpy));
 837                 setsid();
 838                 execvp(((char **)a->v)[0], (char **)a->v);
 839                 fprintf(stderr, "%s: execvp %s", argv0, ((char **)a->v)[0]);
 840                 perror(" failed");
 841                 exit(1);
 842         }
 843 }
 844
 845 void
 846 destroyclient(Client *c)
 847 {
 848         Client *p;
 849
 850         webkit_web_view_stop_loading(c->view);
 851         /* Not needed, has already been called
 852         gtk_widget_destroy(c->win);
 853          */
 854
 855         for (p = clients; p && p->next != c; p = p->next)
 856                 ;
 857         if (p)
 858                 p->next = c->next;
 859         else
 860                 clients = c->next;
 861         free(c);
 862 }
 863
 864 void
 865 cleanup(void)
 866 {
 867         while (clients)
 868                 destroyclient(clients);
 869         g_free(cookiefile);
 870         g_free(scriptfile);
 871         g_free(stylefile);
 872         g_free(cachedir);
 873 }
 874
 875 static GdkDevice *
 876 getkbdevice(void)
 877 {
 878         GList *l, *gdl = gdk_device_manager_list_devices(
 879                    gdk_display_get_device_manager(gdk_display_get_default()),
 880                    GDK_DEVICE_TYPE_MASTER);
 881         GdkDevice *gd = NULL;
 882
 883         for (l = gdl; l != NULL; l = l->next)
 884                 if (gdk_device_get_source(l->data) == GDK_SOURCE_KEYBOARD)
 885                         gd = l->data;
 886
 887         g_list_free(gdl);
 888         return gd;
 889 }
 890
 891 WebKitWebView *
 892 newview(Client *c, WebKitWebView *rv)
 893 {
 894         WebKitWebView *v;
 895         WebKitSettings *settings;
 896         WebKitUserContentManager *contentmanager;
 897         WebKitWebContext *context;
 898
 899         /* Webview */
 900         if (rv) {
 901                 v = WEBKIT_WEB_VIEW(
 902                     webkit_web_view_new_with_related_view(rv));
 903         } else {
 904                 settings = webkit_settings_new_with_settings(
 905                    "auto-load-images", curconfig[LoadImages].val.b,
 906                    "default-font-size", curconfig[FontSize].val.f,
 907                    "enable-caret-browsing", curconfig[CaretBrowsing].val.b,
 908                    "enable-developer-extras", curconfig[Inspector].val.b,
 909                    "enable-dns-prefetching", curconfig[DNSPrefetch].val.b,
 910                    "enable-frame-flattening", curconfig[FrameFlattening].val.b,
 911                    "enable-html5-database", curconfig[DiskCache].val.b,
 912                    "enable-html5-local-storage", curconfig[DiskCache].val.b,
 913                    "enable-javascript", curconfig[JavaScript].val.b,
 914                    "enable-plugins", curconfig[Plugins].val.b,
 915                    NULL);
 916 /* For mor interesting settings, have a look at
 917  * http://webkitgtk.org/reference/webkit2gtk/stable/WebKitSettings.html */
 918
 919                 if (strcmp(fulluseragent, "")) {
 920                         webkit_settings_set_user_agent(settings, fulluseragent);
 921                 } else if (surfuseragent) {
 922                         webkit_settings_set_user_agent_with_application_details(
 923                             settings, "Surf", VERSION);
 924                 }
 925                 useragent = webkit_settings_get_user_agent(settings);
 926
 927                 contentmanager = webkit_user_content_manager_new();
 928
 929                 context = webkit_web_context_new_with_website_data_manager(
 930                           webkit_website_data_manager_new(
 931                           "base-cache-directory", cachedir,
 932                           "base-data-directory", cachedir,
 933                           NULL));
 934
 935                 /* rendering process model, can be a shared unique one
 936                  * or one for each view */
 937                 webkit_web_context_set_process_model(context,
 938                     WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
 939                 /* ssl */
 940                 webkit_web_context_set_tls_errors_policy(context,
 941                     curconfig[StrictSSL].val.b ? WEBKIT_TLS_ERRORS_POLICY_FAIL :
 942                     WEBKIT_TLS_ERRORS_POLICY_IGNORE);
 943                 /* disk cache */
 944                 webkit_web_context_set_cache_model(context,
 945                     curconfig[DiskCache].val.b ? WEBKIT_CACHE_MODEL_WEB_BROWSER :
 946                     WEBKIT_CACHE_MODEL_DOCUMENT_VIEWER);
 947
 948                 /* Currently only works with text file to be compatible with curl */
 949                 webkit_cookie_manager_set_persistent_storage(
 950                     webkit_web_context_get_cookie_manager(context), cookiefile,
 951                     WEBKIT_COOKIE_PERSISTENT_STORAGE_TEXT);
 952                 /* cookie policy */
 953                 webkit_cookie_manager_set_accept_policy(
 954                     webkit_web_context_get_cookie_manager(context),
 955                     cookiepolicy_get());
 956                 /* languages */
 957                 webkit_web_context_set_preferred_languages(context,
 958                     curconfig[PreferredLanguages].val.v);
 959                 webkit_web_context_set_spell_checking_languages(context,
 960                     curconfig[SpellLanguages].val.v);
 961                 webkit_web_context_set_spell_checking_enabled(context,
 962                     curconfig[SpellChecking].val.b);
 963
 964                 g_signal_connect(G_OBJECT(context), "download-started",
 965                                  G_CALLBACK(downloadstarted), c);
 966
 967                 v = g_object_new(WEBKIT_TYPE_WEB_VIEW,
 968                     "settings", settings,
 969                     "user-content-manager", contentmanager,
 970                     "web-context", context,
 971                     NULL);
 972         }
 973
 974         g_signal_connect(G_OBJECT(v), "notify::estimated-load-progress",
 975                          G_CALLBACK(progresschanged), c);
 976         g_signal_connect(G_OBJECT(v), "notify::title",
 977                          G_CALLBACK(titlechanged), c);
 978         g_signal_connect(G_OBJECT(v), "button-release-event",
 979                          G_CALLBACK(buttonreleased), c);
 980         g_signal_connect(G_OBJECT(v), "close",
 981                         G_CALLBACK(closeview), c);
 982         g_signal_connect(G_OBJECT(v), "create",
 983                          G_CALLBACK(createview), c);
 984         g_signal_connect(G_OBJECT(v), "decide-policy",
 985                          G_CALLBACK(decidepolicy), c);
 986         g_signal_connect(G_OBJECT(v), "load-changed",
 987                          G_CALLBACK(loadchanged), c);
 988         g_signal_connect(G_OBJECT(v), "mouse-target-changed",
 989                          G_CALLBACK(mousetargetchanged), c);
 990         g_signal_connect(G_OBJECT(v), "permission-request",
 991                          G_CALLBACK(permissionrequested), c);
 992         g_signal_connect(G_OBJECT(v), "ready-to-show",
 993                          G_CALLBACK(showview), c);
 994
 995         return v;
 996 }
 997
 998 GtkWidget *
 999 createview(WebKitWebView *v, WebKitNavigationAction *a, Client *c)
1000 {
1001         Client *n;
1002
1003         switch (webkit_navigation_action_get_navigation_type(a)) {
1004         case WEBKIT_NAVIGATION_TYPE_OTHER: /* fallthrough */
1005                 /*
1006                  * popup windows of type “other” are almost always triggered
1007                  * by user gesture, so inverse the logic here
1008                  */
1009 /* instead of this, compare destination uri to mouse-over uri for validating window */
1010                 if (webkit_navigation_action_is_user_gesture(a))
1011                         return NULL;
1012         case WEBKIT_NAVIGATION_TYPE_LINK_CLICKED: /* fallthrough */
1013         case WEBKIT_NAVIGATION_TYPE_FORM_SUBMITTED: /* fallthrough */
1014         case WEBKIT_NAVIGATION_TYPE_BACK_FORWARD: /* fallthrough */
1015         case WEBKIT_NAVIGATION_TYPE_RELOAD: /* fallthrough */
1016         case WEBKIT_NAVIGATION_TYPE_FORM_RESUBMITTED:
1017                 n = newclient(c);
1018                 break;
1019         default:
1020                 return NULL;
1021         }
1022
1023         return GTK_WIDGET(n->view);
1024 }
1025
1026 gboolean
1027 buttonreleased(GtkWidget *w, GdkEvent *e, Client *c)
1028 {
1029         WebKitHitTestResultContext element;
1030         int i;
1031
1032         element = webkit_hit_test_result_get_context(c->mousepos);
1033
1034         for (i = 0; i < LENGTH(buttons); ++i) {
1035                 if (element & buttons[i].target &&
1036                     e->button.button == buttons[i].button &&
1037                     CLEANMASK(e->button.state) == CLEANMASK(buttons[i].mask) &&
1038                     buttons[i].func) {
1039                         buttons[i].func(c, &buttons[i].arg, c->mousepos);
1040                         return buttons[i].stopevent;
1041                 }
1042         }
1043
1044         return FALSE;
1045 }
1046
1047 GdkFilterReturn
1048 processx(GdkXEvent *e, GdkEvent *event, gpointer d)
1049 {
1050         Client *c = (Client *)d;
1051         XPropertyEvent *ev;
1052         Arg a;
1053
1054         if (((XEvent *)e)->type == PropertyNotify) {
1055                 ev = &((XEvent *)e)->xproperty;
1056                 if (ev->state == PropertyNewValue) {
1057                         if (ev->atom == atoms[AtomFind]) {
1058                                 find(c, NULL);
1059
1060                                 return GDK_FILTER_REMOVE;
1061                         } else if (ev->atom == atoms[AtomGo]) {
1062                                 a.v = getatom(c, AtomGo);
1063                                 loaduri(c, &a);
1064
1065                                 return GDK_FILTER_REMOVE;
1066                         }
1067                 }
1068         }
1069         return GDK_FILTER_CONTINUE;
1070 }
1071
1072 gboolean
1073 winevent(GtkWidget *w, GdkEvent *e, Client *c)
1074 {
1075         int i;
1076
1077         switch (e->type) {
1078         case GDK_ENTER_NOTIFY:
1079                 c->overtitle = c->targeturi;
1080                 updatetitle(c);
1081                 break;
1082         case GDK_KEY_PRESS:
1083                 if (!curconfig[KioskMode].val.b) {
1084                         for (i = 0; i < LENGTH(keys); ++i) {
1085                                 if (gdk_keyval_to_lower(e->key.keyval) ==
1086                                     keys[i].keyval &&
1087                                     CLEANMASK(e->key.state) == keys[i].mod &&
1088                                     keys[i].func) {
1089                                         updatewinid(c);
1090                                         keys[i].func(c, &(keys[i].arg));
1091                                         return TRUE;
1092                                 }
1093                         }
1094                 }
1095         case GDK_LEAVE_NOTIFY:
1096                 c->overtitle = NULL;
1097                 updatetitle(c);
1098                 break;
1099         case GDK_WINDOW_STATE:
1100                 if (e->window_state.changed_mask ==
1101                     GDK_WINDOW_STATE_FULLSCREEN)
1102                         c->fullscreen = e->window_state.new_window_state &
1103                                         GDK_WINDOW_STATE_FULLSCREEN;
1104                 break;
1105         default:
1106                 break;
1107         }
1108
1109         return FALSE;
1110 }
1111
1112 void
1113 showview(WebKitWebView *v, Client *c)
1114 {
1115         GdkRGBA bgcolor = { 0 };
1116         GdkWindow *gwin;
1117
1118         c->finder = webkit_web_view_get_find_controller(c->view);
1119         c->inspector = webkit_web_view_get_inspector(c->view);
1120
1121         c->win = createwindow(c);
1122
1123         gtk_container_add(GTK_CONTAINER(c->win), GTK_WIDGET(c->view));
1124         gtk_widget_show_all(c->win);
1125         gtk_widget_grab_focus(GTK_WIDGET(c->view));
1126
1127         gwin = gtk_widget_get_window(GTK_WIDGET(c->win));
1128         c->xid = gdk_x11_window_get_xid(gwin);
1129         updatewinid(c);
1130         if (showxid) {
1131                 gdk_display_sync(gtk_widget_get_display(c->win));
1132                 puts(winid);
1133         }
1134
1135         if (curconfig[HideBackground].val.b)
1136                 webkit_web_view_set_background_color(c->view, &bgcolor);
1137
1138         if (!curconfig[KioskMode].val.b) {
1139                 gdk_window_set_events(gwin, GDK_ALL_EVENTS_MASK);
1140                 gdk_window_add_filter(gwin, processx, c);
1141         }
1142
1143         if (curconfig[RunInFullscreen].val.b)
1144                 togglefullscreen(c, NULL);
1145
1146         if (curconfig[ZoomLevel].val.f != 1.0)
1147                 webkit_web_view_set_zoom_level(c->view,
1148                                                curconfig[ZoomLevel].val.f);
1149
1150         setatom(c, AtomFind, "");
1151         setatom(c, AtomUri, "about:blank");
1152 }
1153
1154 GtkWidget *
1155 createwindow(Client *c)
1156 {
1157         char *wmstr;
1158         GtkWidget *w;
1159
1160         if (embed) {
1161                 w = gtk_plug_new(embed);
1162         } else {
1163                 w = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1164
1165                 wmstr = g_path_get_basename(argv0);
1166                 gtk_window_set_wmclass(GTK_WINDOW(w), wmstr, "Surf");
1167                 g_free(wmstr);
1168
1169                 wmstr = g_strdup_printf("%s[%lu]", "Surf",
1170                         webkit_web_view_get_page_id(c->view));
1171                 gtk_window_set_role(GTK_WINDOW(w), wmstr);
1172                 g_free(wmstr);
1173
1174                 gtk_window_set_default_size(GTK_WINDOW(w), 800, 600);
1175         }
1176
1177         g_signal_connect(G_OBJECT(w), "destroy",
1178                          G_CALLBACK(destroywin), c);
1179         g_signal_connect(G_OBJECT(w), "enter-notify-event",
1180                          G_CALLBACK(winevent), c);
1181         g_signal_connect(G_OBJECT(w), "key-press-event",
1182                          G_CALLBACK(winevent), c);
1183         g_signal_connect(G_OBJECT(w), "leave-notify-event",
1184                          G_CALLBACK(winevent), c);
1185         g_signal_connect(G_OBJECT(w), "window-state-event",
1186                          G_CALLBACK(winevent), c);
1187
1188         return w;
1189 }
1190
1191 void
1192 loadchanged(WebKitWebView *v, WebKitLoadEvent e, Client *c)
1193 {
1194         const char *title = geturi(c);
1195
1196         switch (e) {
1197         case WEBKIT_LOAD_STARTED:
1198                 curconfig = defconfig;
1199                 setatom(c, AtomUri, title);
1200                 c->title = title;
1201                 c->tlsflags = G_TLS_CERTIFICATE_VALIDATE_ALL + 1;
1202                 seturiparameters(c, geturi(c));
1203                 break;
1204         case WEBKIT_LOAD_REDIRECTED:
1205                 setatom(c, AtomUri, title);
1206                 c->title = title;
1207                 seturiparameters(c, geturi(c));
1208                 break;
1209         case WEBKIT_LOAD_COMMITTED:
1210                 if (!webkit_web_view_get_tls_info(c->view, NULL,
1211                     &(c->tlsflags)))
1212                         c->tlsflags = G_TLS_CERTIFICATE_VALIDATE_ALL + 1;
1213
1214                 break;
1215         case WEBKIT_LOAD_FINISHED:
1216                 /* Disabled until we write some WebKitWebExtension for
1217                  * manipulating the DOM directly.
1218                 evalscript(c, "document.documentElement.style.overflow = '%s'",
1219                     enablescrollbars ? "auto" : "hidden");
1220                 */
1221                 runscript(c);
1222                 break;
1223         }
1224         updatetitle(c);
1225 }
1226
1227 void
1228 progresschanged(WebKitWebView *v, GParamSpec *ps, Client *c)
1229 {
1230         c->progress = webkit_web_view_get_estimated_load_progress(c->view) *
1231                       100;
1232         updatetitle(c);
1233 }
1234
1235 void
1236 titlechanged(WebKitWebView *view, GParamSpec *ps, Client *c)
1237 {
1238         c->title = webkit_web_view_get_title(c->view);
1239         updatetitle(c);
1240 }
1241
1242 void
1243 mousetargetchanged(WebKitWebView *v, WebKitHitTestResult *h, guint modifiers,
1244     Client *c)
1245 {
1246         WebKitHitTestResultContext hc = webkit_hit_test_result_get_context(h);
1247
1248         /* Keep the hit test to know where is the pointer on the next click */
1249         c->mousepos = h;
1250
1251         if (hc & OnLink)
1252                 c->targeturi = webkit_hit_test_result_get_link_uri(h);
1253         else if (hc & OnImg)
1254                 c->targeturi = webkit_hit_test_result_get_image_uri(h);
1255         else if (hc & OnMedia)
1256                 c->targeturi = webkit_hit_test_result_get_media_uri(h);
1257         else
1258                 c->targeturi = NULL;
1259
1260         c->overtitle = c->targeturi;
1261         updatetitle(c);
1262 }
1263
1264 gboolean
1265 permissionrequested(WebKitWebView *v, WebKitPermissionRequest *r, Client *c)
1266 {
1267         if (WEBKIT_IS_GEOLOCATION_PERMISSION_REQUEST(r)) {
1268                 if (curconfig[Geolocation].val.b)
1269                         webkit_permission_request_allow(r);
1270                 else
1271                         webkit_permission_request_deny(r);
1272                 return TRUE;
1273         }
1274
1275         return FALSE;
1276 }
1277
1278 gboolean
1279 decidepolicy(WebKitWebView *v, WebKitPolicyDecision *d,
1280     WebKitPolicyDecisionType dt, Client *c)
1281 {
1282         switch (dt) {
1283         case WEBKIT_POLICY_DECISION_TYPE_NAVIGATION_ACTION:
1284                 decidenavigation(d, c);
1285                 break;
1286         case WEBKIT_POLICY_DECISION_TYPE_NEW_WINDOW_ACTION:
1287                 decidenewwindow(d, c);
1288                 break;
1289         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
1290                 decideresource(d, c);
1291                 break;
1292         default:
1293                 webkit_policy_decision_ignore(d);
1294                 break;
1295         }
1296         return TRUE;
1297 }
1298
1299 void
1300 decidenavigation(WebKitPolicyDecision *d, Client *c)
1301 {
1302         WebKitNavigationAction *a =
1303             webkit_navigation_policy_decision_get_navigation_action(
1304             WEBKIT_NAVIGATION_POLICY_DECISION(d));
1305
1306         switch (webkit_navigation_action_get_navigation_type(a)) {
1307         case WEBKIT_NAVIGATION_TYPE_LINK_CLICKED: /* fallthrough */
1308         case WEBKIT_NAVIGATION_TYPE_FORM_SUBMITTED: /* fallthrough */
1309         case WEBKIT_NAVIGATION_TYPE_BACK_FORWARD: /* fallthrough */
1310         case WEBKIT_NAVIGATION_TYPE_RELOAD: /* fallthrough */
1311         case WEBKIT_NAVIGATION_TYPE_FORM_RESUBMITTED: /* fallthrough */
1312         case WEBKIT_NAVIGATION_TYPE_OTHER: /* fallthrough */
1313         default:
1314                 /* Do not navigate to links with a "_blank" target (popup) */
1315                 if (webkit_navigation_policy_decision_get_frame_name(
1316                     WEBKIT_NAVIGATION_POLICY_DECISION(d))) {
1317                         webkit_policy_decision_ignore(d);
1318                 } else {
1319                         /* Filter out navigation to different domain ? */
1320                         /* get action→urirequest, copy and load in new window+view
1321                          * on Ctrl+Click ? */
1322                         webkit_policy_decision_use(d);
1323                 }
1324                 break;
1325         }
1326 }
1327
1328 void
1329 decidenewwindow(WebKitPolicyDecision *d, Client *c)
1330 {
1331         Arg arg;
1332         WebKitNavigationAction *a =
1333             webkit_navigation_policy_decision_get_navigation_action(
1334             WEBKIT_NAVIGATION_POLICY_DECISION(d));
1335
1336
1337         switch (webkit_navigation_action_get_navigation_type(a)) {
1338         case WEBKIT_NAVIGATION_TYPE_LINK_CLICKED: /* fallthrough */
1339         case WEBKIT_NAVIGATION_TYPE_FORM_SUBMITTED: /* fallthrough */
1340         case WEBKIT_NAVIGATION_TYPE_BACK_FORWARD: /* fallthrough */
1341         case WEBKIT_NAVIGATION_TYPE_RELOAD: /* fallthrough */
1342         case WEBKIT_NAVIGATION_TYPE_FORM_RESUBMITTED:
1343                 /* Filter domains here */
1344 /* If the value of “mouse-button” is not 0, then the navigation was triggered by a mouse event.
1345  * test for link clicked but no button ? */
1346                 arg.v = webkit_uri_request_get_uri(
1347                         webkit_navigation_action_get_request(a));
1348                 newwindow(c, &arg, 0);
1349                 break;
1350         case WEBKIT_NAVIGATION_TYPE_OTHER: /* fallthrough */
1351         default:
1352                 break;
1353         }
1354
1355         webkit_policy_decision_ignore(d);
1356 }
1357
1358 void
1359 decideresource(WebKitPolicyDecision *d, Client *c)
1360 {
1361         int i, isascii = 1;
1362         WebKitResponsePolicyDecision *r = WEBKIT_RESPONSE_POLICY_DECISION(d);
1363         WebKitURIResponse *res =
1364             webkit_response_policy_decision_get_response(r);
1365         const gchar *uri = webkit_uri_response_get_uri(res);
1366
1367         if (g_str_has_suffix(uri, "/favicon.ico")) {
1368                 webkit_policy_decision_ignore(d);
1369                 return;
1370         }
1371
1372         if (!g_str_has_prefix(uri, "http://")
1373             && !g_str_has_prefix(uri, "https://")
1374             && !g_str_has_prefix(uri, "about:")
1375             && !g_str_has_prefix(uri, "file://")
1376             && !g_str_has_prefix(uri, "data:")
1377             && !g_str_has_prefix(uri, "blob:")
1378             && strlen(uri) > 0) {
1379                 for (i = 0; i < strlen(uri); i++) {
1380                         if (!g_ascii_isprint(uri[i])) {
1381                                 isascii = 0;
1382                                 break;
1383                         }
1384                 }
1385                 if (isascii) {
1386                         handleplumb(c, uri);
1387                         webkit_policy_decision_ignore(d);
1388                         return;
1389                 }
1390         }
1391
1392         if (webkit_response_policy_decision_is_mime_type_supported(r)) {
1393                 webkit_policy_decision_use(d);
1394         } else {
1395                 webkit_policy_decision_ignore(d);
1396                 download(c, res);
1397         }
1398 }
1399
1400 void
1401 downloadstarted(WebKitWebContext *wc, WebKitDownload *d, Client *c)
1402 {
1403         g_signal_connect(G_OBJECT(d), "notify::response",
1404                          G_CALLBACK(responsereceived), c);
1405 }
1406
1407 void
1408 responsereceived(WebKitDownload *d, GParamSpec *ps, Client *c)
1409 {
1410         download(c, webkit_download_get_response(d));
1411         webkit_download_cancel(d);
1412 }
1413
1414 void
1415 download(Client *c, WebKitURIResponse *r)
1416 {
1417         Arg a = (Arg)DOWNLOAD(webkit_uri_response_get_uri(r), geturi(c));
1418         spawn(c, &a);
1419 }
1420
1421 void
1422 closeview(WebKitWebView *v, Client *c)
1423 {
1424         gtk_widget_destroy(c->win);
1425 }
1426
1427 void
1428 destroywin(GtkWidget* w, Client *c)
1429 {
1430         destroyclient(c);
1431         if (!clients)
1432                 gtk_main_quit();
1433 }
1434
1435 void
1436 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d)
1437 {
1438         Arg a = {.v = text };
1439         if (text)
1440                 loaduri((Client *) d, &a);
1441 }
1442
1443 void
1444 reload(Client *c, const Arg *a)
1445 {
1446         if (a->b)
1447                 webkit_web_view_reload_bypass_cache(c->view);
1448         else
1449                 webkit_web_view_reload(c->view);
1450 }
1451
1452 void
1453 print(Client *c, const Arg *a)
1454 {
1455         webkit_print_operation_run_dialog(webkit_print_operation_new(c->view),
1456                                           GTK_WINDOW(c->win));
1457 }
1458
1459 void
1460 clipboard(Client *c, const Arg *a)
1461 {
1462         if (a->b) { /* load clipboard uri */
1463                 gtk_clipboard_request_text(gtk_clipboard_get(
1464                                            GDK_SELECTION_PRIMARY),
1465                                            pasteuri, c);
1466         } else { /* copy uri */
1467                 gtk_clipboard_set_text(gtk_clipboard_get(
1468                                        GDK_SELECTION_PRIMARY), c->targeturi
1469                                        ? c->targeturi : geturi(c), -1);
1470         }
1471 }
1472
1473 void
1474 zoom(Client *c, const Arg *a)
1475 {
1476         if (a->i > 0)
1477                 webkit_web_view_set_zoom_level(c->view,
1478                                                curconfig[ZoomLevel].val.f + 0.1);
1479         else if (a->i < 0)
1480                 webkit_web_view_set_zoom_level(c->view,
1481                                                curconfig[ZoomLevel].val.f - 0.1);
1482         else
1483                 webkit_web_view_set_zoom_level(c->view, 1.0);
1484
1485         curconfig[ZoomLevel].val.f = webkit_web_view_get_zoom_level(c->view);
1486 }
1487
1488 void
1489 scroll(Client *c, const Arg *a)
1490 {
1491         GdkEvent *ev = gdk_event_new(GDK_KEY_PRESS);
1492
1493         gdk_event_set_device(ev, gdkkb);
1494         ev->key.window = gtk_widget_get_window(GTK_WIDGET(c->win));
1495         ev->key.state = GDK_CONTROL_MASK;
1496         ev->key.time = GDK_CURRENT_TIME;
1497
1498         switch (a->i) {
1499         case 'd':
1500                 ev->key.keyval = GDK_KEY_Down;
1501                 break;
1502         case 'D':
1503                 ev->key.keyval = GDK_KEY_Page_Down;
1504                 break;
1505         case 'l':
1506                 ev->key.keyval = GDK_KEY_Left;
1507                 break;
1508         case 'r':
1509                 ev->key.keyval = GDK_KEY_Right;
1510                 break;
1511         case 'U':
1512                 ev->key.keyval = GDK_KEY_Page_Up;
1513                 break;
1514         case 'u':
1515                 ev->key.keyval = GDK_KEY_Up;
1516                 break;
1517         }
1518
1519         gdk_event_put(ev);
1520 }
1521
1522 void
1523 navigate(Client *c, const Arg *a)
1524 {
1525         if (a->i < 0)
1526                 webkit_web_view_go_back(c->view);
1527         else if (a->i > 0)
1528                 webkit_web_view_go_forward(c->view);
1529 }
1530
1531 void
1532 stop(Client *c, const Arg *a)
1533 {
1534         webkit_web_view_stop_loading(c->view);
1535 }
1536
1537 void
1538 toggle(Client *c, const Arg *a)
1539 {
1540         curconfig[a->i].val.b ^= 1;
1541         setparameter(c, 1, (ParamName)a->i, &curconfig[a->i].val);
1542 }
1543
1544 void
1545 togglefullscreen(Client *c, const Arg *a)
1546 {
1547         /* toggling value is handled in winevent() */
1548         if (c->fullscreen)
1549                 gtk_window_unfullscreen(GTK_WINDOW(c->win));
1550         else
1551                 gtk_window_fullscreen(GTK_WINDOW(c->win));
1552 }
1553
1554 void
1555 togglecookiepolicy(Client *c, const Arg *a)
1556 {
1557         ++cookiepolicy;
1558         cookiepolicy %= strlen(curconfig[CookiePolicies].val.v);
1559
1560         setparameter(c, 0, CookiePolicies, NULL);
1561 }
1562
1563 void
1564 toggleinspector(Client *c, const Arg *a)
1565 {
1566         if (webkit_web_inspector_is_attached(c->inspector))
1567                 webkit_web_inspector_close(c->inspector);
1568         else if (curconfig[Inspector].val.b)
1569                 webkit_web_inspector_show(c->inspector);
1570 }
1571
1572 void
1573 find(Client *c, const Arg *a)
1574 {
1575         const char *s, *f;
1576
1577         if (a && a->i) {
1578                 if (a->i > 0)
1579                         webkit_find_controller_search_next(c->finder);
1580                 else
1581                         webkit_find_controller_search_previous(c->finder);
1582         } else {
1583                 s = getatom(c, AtomFind);
1584                 f = webkit_find_controller_get_search_text(c->finder);
1585
1586                 if (g_strcmp0(f, s) == 0) /* reset search */
1587                         webkit_find_controller_search(c->finder, "", findopts,
1588                                                       G_MAXUINT);
1589
1590                 webkit_find_controller_search(c->finder, s, findopts,
1591                                               G_MAXUINT);
1592
1593                 if (strcmp(s, "") == 0)
1594                         webkit_find_controller_search_finish(c->finder);
1595         }
1596 }
1597
1598 void
1599 clicknavigate(Client *c, const Arg *a, WebKitHitTestResult *h)
1600 {
1601         navigate(c, a);
1602 }
1603
1604 void
1605 clicknewwindow(Client *c, const Arg *a, WebKitHitTestResult *h)
1606 {
1607         Arg arg;
1608
1609         arg.v = webkit_hit_test_result_get_link_uri(h);
1610         newwindow(c, &arg, a->b);
1611 }
1612
1613 void
1614 clickexternplayer(Client *c, const Arg *a, WebKitHitTestResult *h)
1615 {
1616         Arg arg;
1617
1618         arg = (Arg)VIDEOPLAY(webkit_hit_test_result_get_media_uri(h));
1619         spawn(c, &arg);
1620 }
1621
1622 int
1623 main(int argc, char *argv[])
1624 {
1625         Arg arg;
1626         Client *c;
1627
1628         memset(&arg, 0, sizeof(arg));
1629
1630         /* command line args */
1631         ARGBEGIN {
1632         case 'a':
1633                 defconfig CSETV(CookiePolicies, EARGF(usage()));
1634                 break;
1635         case 'b':
1636                 defconfig CSETB(ScrollBars, 0);
1637                 break;
1638         case 'B':
1639                 defconfig CSETB(ScrollBars, 1);
1640                 break;
1641         case 'c':
1642                 cookiefile = EARGF(usage());
1643                 break;
1644         case 'd':
1645                 defconfig CSETB(DiskCache, 0);
1646                 break;
1647         case 'D':
1648                 defconfig CSETB(DiskCache, 1);
1649                 break;
1650         case 'e':
1651                 embed = strtol(EARGF(usage()), NULL, 0);
1652                 break;
1653         case 'f':
1654                 defconfig CSETB(RunInFullscreen, 0);
1655                 break;
1656         case 'F':
1657                 defconfig CSETB(RunInFullscreen, 1);
1658                 break;
1659         case 'g':
1660                 defconfig CSETB(Geolocation, 0);
1661                 break;
1662         case 'G':
1663                 defconfig CSETB(Geolocation, 1);
1664                 break;
1665         case 'i':
1666                 defconfig CSETB(LoadImages, 0);
1667                 break;
1668         case 'I':
1669                 defconfig CSETB(LoadImages, 1);
1670                 break;
1671         case 'k':
1672                 defconfig CSETB(KioskMode, 0);
1673                 break;
1674         case 'K':
1675                 defconfig CSETB(KioskMode, 1);
1676                 break;
1677         case 'm':
1678                 defconfig CSETB(Style, 0);
1679                 break;
1680         case 'M':
1681                 defconfig CSETB(Style, 1);
1682                 break;
1683         case 'n':
1684                 defconfig CSETB(Inspector, 0);
1685                 break;
1686         case 'N':
1687                 defconfig CSETB(Inspector, 1);
1688                 break;
1689         case 'p':
1690                 defconfig CSETB(Plugins, 0);
1691                 break;
1692         case 'P':
1693                 defconfig CSETB(Plugins, 1);
1694                 break;
1695         case 'r':
1696                 scriptfile = EARGF(usage());
1697                 break;
1698         case 's':
1699                 defconfig CSETB(JavaScript, 0);
1700                 break;
1701         case 'S':
1702                 defconfig CSETB(JavaScript, 1);
1703                 break;
1704         case 't':
1705                 stylefile = EARGF(usage());
1706                 break;
1707         case 'u':
1708                 fulluseragent = EARGF(usage());
1709                 break;
1710         case 'v':
1711                 die("surf-"VERSION", ©2009-2015 surf engineers, "
1712                     "see LICENSE for details\n");
1713         case 'x':
1714                 showxid = 1;
1715                 break;
1716         case 'z':
1717                 defconfig CSETF(ZoomLevel, strtof(EARGF(usage()), NULL));
1718                 break;
1719         default:
1720                 usage();
1721         } ARGEND;
1722         if (argc > 0)
1723                 arg.v = argv[0];
1724         else
1725                 arg.v = "about:blank";
1726
1727         setup();
1728         c = newclient(NULL);
1729         showview(NULL, c);
1730
1731         loaduri(c, &arg);
1732         updatetitle(c);
1733
1734         gtk_main();
1735         cleanup();
1736
1737         return 0;
1738 }