surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <signal.h>
   6 #include <X11/X.h>
   7 #include <X11/Xatom.h>
   8 #include <gtk/gtk.h>
   9 #include <gdk/gdkx.h>
  10 #include <gdk/gdk.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <unistd.h>
  16 #include <limits.h>
  17 #include <stdlib.h>
  18 #include <stdio.h>
  19 #include <webkit/webkit.h>
  20 #include <glib/gstdio.h>
  21 #include <JavaScriptCore/JavaScript.h>
  22 #include <sys/file.h>
  23 #include <libgen.h>
  24 #include <stdarg.h>
  25
  26 #include "arg.h"
  27
  28 char *argv0;
  29
  30 #define LENGTH(x)               (sizeof x / sizeof x[0])
  31 #define COOKIEJAR_TYPE          (cookiejar_get_type ())
  32 #define COOKIEJAR(obj)          (G_TYPE_CHECK_INSTANCE_CAST ((obj), COOKIEJAR_TYPE, CookieJar))
  33
  34 enum { AtomFind, AtomGo, AtomUri, AtomLast };
  35
  36 typedef union Arg Arg;
  37 union Arg {
  38         gboolean b;
  39         gint i;
  40         const void *v;
  41 };
  42
  43 typedef struct Client {
  44         GtkWidget *win, *scroll, *vbox, *indicator;
  45         WebKitWebView *view;
  46         WebKitWebInspector *inspector;
  47         char *title, *linkhover;
  48         const char *uri, *needle;
  49         gint progress;
  50         struct Client *next;
  51         gboolean zoomed, fullscreen, isinspector, sslfailed;
  52 } Client;
  53
  54 typedef struct {
  55         char *label;
  56         void (*func)(Client *c, const Arg *arg);
  57         const Arg arg;
  58 } Item;
  59
  60 typedef struct {
  61         guint mod;
  62         guint keyval;
  63         void (*func)(Client *c, const Arg *arg);
  64         const Arg arg;
  65 } Key;
  66
  67 typedef struct {
  68         SoupCookieJarText parent_instance;
  69         int lock;
  70 } CookieJar;
  71
  72 typedef struct {
  73         SoupCookieJarTextClass parent_class;
  74 } CookieJarClass;
  75
  76 G_DEFINE_TYPE(CookieJar, cookiejar, SOUP_TYPE_COOKIE_JAR_TEXT)
  77
  78 static Display *dpy;
  79 static Atom atoms[AtomLast];
  80 static Client *clients = NULL;
  81 static GdkNativeWindow embed = 0;
  82 static gboolean showxid = FALSE;
  83 static char winid[64];
  84 static gboolean usingproxy = 0;
  85 static char togglestat[5];
  86
  87 static void beforerequest(WebKitWebView *w, WebKitWebFrame *f,
  88                 WebKitWebResource *r, WebKitNetworkRequest *req,
  89                 WebKitNetworkResponse *resp, gpointer d);
  90 static char *buildpath(const char *path);
  91 static gboolean buttonrelease(WebKitWebView *web, GdkEventButton *e,
  92                 GList *gl);
  93 static void cleanup(void);
  94 static void clipboard(Client *c, const Arg *arg);
  95
  96 static void cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
  97                 SoupCookie *new_cookie);
  98 static void cookiejar_finalize(GObject *self);
  99 static SoupCookieJar *cookiejar_new(const char *filename, gboolean read_only);
 100 static void cookiejar_set_property(GObject *self, guint prop_id,
 101                 const GValue *value, GParamSpec *pspec);
 102
 103 static char *copystr(char **str, const char *src);
 104 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f,
 105                 Client *c);
 106 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f,
 107                 WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p,
 108                 Client *c);
 109 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f,
 110                 WebKitNetworkRequest *r, WebKitWebNavigationAction *n,
 111                 WebKitWebPolicyDecision *p, Client *c);
 112 static void destroyclient(Client *c);
 113 static void destroywin(GtkWidget* w, Client *c);
 114 static void die(const char *errstr, ...);
 115 static void drawindicator(Client *c);
 116 static void eval(Client *c, const Arg *arg);
 117 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
 118 static void find(Client *c, const Arg *arg);
 119 static void fullscreen(Client *c, const Arg *arg);
 120 static const char *getatom(Client *c, int a);
 121 static void gettogglestat(Client *c);
 122 static char *geturi(Client *c);
 123 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
 124
 125 static void inspector(Client *c, const Arg *arg);
 126 static WebKitWebView *inspector_new(WebKitWebInspector *i, WebKitWebView *v,
 127                 Client *c);
 128 static gboolean inspector_show(WebKitWebInspector *i, Client *c);
 129 static gboolean inspector_close(WebKitWebInspector *i, Client *c);
 130 static void inspector_finished(WebKitWebInspector *i, Client *c);
 131
 132 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
 133 static void linkhover(WebKitWebView *v, const char* t, const char* l,
 134                 Client *c);
 135 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec,
 136                 Client *c);
 137 static void loaduri(Client *c, const Arg *arg);
 138 static void navigate(Client *c, const Arg *arg);
 139 static Client *newclient(void);
 140 static void newwindow(Client *c, const Arg *arg, gboolean noembed);
 141 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 142 static void populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c);
 143 static void popupactivate(GtkMenuItem *menu, Client *);
 144 static void print(Client *c, const Arg *arg);
 145 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event,
 146                 gpointer d);
 147 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 148 static void reload(Client *c, const Arg *arg);
 149 static void scroll_h(Client *c, const Arg *arg);
 150 static void scroll_v(Client *c, const Arg *arg);
 151 static void scroll(GtkAdjustment *a, const Arg *arg);
 152 static void setatom(Client *c, int a, const char *v);
 153 static void setup(void);
 154 static void sigchld(int unused);
 155 static void source(Client *c, const Arg *arg);
 156 static void spawn(Client *c, const Arg *arg);
 157 static void stop(Client *c, const Arg *arg);
 158 static void titlechange(WebKitWebView *v, WebKitWebFrame *frame,
 159                 const char *title, Client *c);
 160 static void toggle(Client *c, const Arg *arg);
 161 static void update(Client *c);
 162 static void updatewinid(Client *c);
 163 static void usage(void);
 164 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame,
 165                 JSContextRef js, JSObjectRef win, Client *c);
 166 static void zoom(Client *c, const Arg *arg);
 167
 168 /* configuration, allows nested code to access above variables */
 169 #include "config.h"
 170
 171 static void
 172 beforerequest(WebKitWebView *w, WebKitWebFrame *f, WebKitWebResource *r,
 173                 WebKitNetworkRequest *req, WebKitNetworkResponse *resp,
 174                 gpointer d) {
 175         const gchar *uri = webkit_network_request_get_uri(req);
 176         if(g_str_has_suffix(uri, "/favicon.ico"))
 177                 webkit_network_request_set_uri(req, "about:blank");
 178 }
 179
 180 static char *
 181 buildpath(const char *path) {
 182         char *apath, *p;
 183         FILE *f;
 184
 185         /* creating directory */
 186         if(path[0] == '/') {
 187                 apath = g_strdup(path);
 188         } else if(path[0] == '~') {
 189                 if(path[1] == '/') {
 190                         apath = g_strconcat(g_get_home_dir(), &path[1], NULL);
 191                 } else {
 192                         apath = g_strconcat(g_get_home_dir(), "/",
 193                                         &path[1], NULL);
 194                 }
 195         } else {
 196                 apath = g_strconcat(g_get_current_dir(), "/", path, NULL);
 197         }
 198
 199         if((p = strrchr(apath, '/'))) {
 200                 *p = '\0';
 201                 g_mkdir_with_parents(apath, 0700);
 202                 g_chmod(apath, 0700); /* in case it existed */
 203                 *p = '/';
 204         }
 205         /* creating file (gives error when apath ends with "/") */
 206         if((f = fopen(apath, "a"))) {
 207                 g_chmod(apath, 0600); /* always */
 208                 fclose(f);
 209         }
 210
 211         return apath;
 212 }
 213
 214 static gboolean
 215 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 216         WebKitHitTestResultContext context;
 217         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web,
 218                         e);
 219         Arg arg;
 220
 221         g_object_get(result, "context", &context, NULL);
 222         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 223                 if(e->button == 2) {
 224                         g_object_get(result, "link-uri", &arg.v, NULL);
 225                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 226                         return true;
 227                 }
 228         }
 229         return false;
 230 }
 231
 232 static void
 233 cleanup(void) {
 234         while(clients)
 235                 destroyclient(clients);
 236         g_free(cookiefile);
 237         g_free(scriptfile);
 238         g_free(stylefile);
 239 }
 240
 241 static void
 242 cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
 243                 SoupCookie *new_cookie) {
 244         flock(COOKIEJAR(self)->lock, LOCK_EX);
 245         if(new_cookie && !new_cookie->expires && sessiontime) {
 246                 soup_cookie_set_expires(new_cookie,
 247                                 soup_date_new_from_now(sessiontime));
 248         }
 249         SOUP_COOKIE_JAR_CLASS(cookiejar_parent_class)->changed(self,
 250                         old_cookie, new_cookie);
 251         flock(COOKIEJAR(self)->lock, LOCK_UN);
 252 }
 253
 254 static void
 255 cookiejar_class_init(CookieJarClass *klass) {
 256         SOUP_COOKIE_JAR_CLASS(klass)->changed = cookiejar_changed;
 257         G_OBJECT_CLASS(klass)->get_property =
 258                 G_OBJECT_CLASS(cookiejar_parent_class)->get_property;
 259         G_OBJECT_CLASS(klass)->set_property = cookiejar_set_property;
 260         G_OBJECT_CLASS(klass)->finalize = cookiejar_finalize;
 261         g_object_class_override_property(G_OBJECT_CLASS(klass), 1, "filename");
 262 }
 263
 264 static void
 265 cookiejar_finalize(GObject *self) {
 266         close(COOKIEJAR(self)->lock);
 267         G_OBJECT_CLASS(cookiejar_parent_class)->finalize(self);
 268 }
 269
 270 static void
 271 cookiejar_init(CookieJar *self) {
 272         self->lock = open(cookiefile, 0);
 273 }
 274
 275 static SoupCookieJar *
 276 cookiejar_new(const char *filename, gboolean read_only) {
 277         return g_object_new(COOKIEJAR_TYPE,
 278                             SOUP_COOKIE_JAR_TEXT_FILENAME, filename,
 279                             SOUP_COOKIE_JAR_READ_ONLY, read_only, NULL);
 280 }
 281
 282 static void
 283 cookiejar_set_property(GObject *self, guint prop_id, const GValue *value,
 284                 GParamSpec *pspec) {
 285         flock(COOKIEJAR(self)->lock, LOCK_SH);
 286         G_OBJECT_CLASS(cookiejar_parent_class)->set_property(self, prop_id,
 287                         value, pspec);
 288         flock(COOKIEJAR(self)->lock, LOCK_UN);
 289 }
 290
 291 static void
 292 evalscript(JSContextRef js, char *script, char* scriptname) {
 293         JSStringRef jsscript, jsscriptname;
 294         JSValueRef exception = NULL;
 295
 296         jsscript = JSStringCreateWithUTF8CString(script);
 297         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 298         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), jsscriptname, 0, &exception);
 299         JSStringRelease(jsscript);
 300         JSStringRelease(jsscriptname);
 301 }
 302
 303 static void
 304 runscript(WebKitWebFrame *frame) {
 305         char *script;
 306         GError *error;
 307
 308         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 309                 evalscript(webkit_web_frame_get_global_context(frame), script, scriptfile);
 310         }
 311 }
 312
 313 static void
 314 clipboard(Client *c, const Arg *arg) {
 315         gboolean paste = *(gboolean *)arg;
 316
 317         if(paste)
 318                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 319         else
 320                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 321 }
 322
 323 static char *
 324 copystr(char **str, const char *src) {
 325         char *tmp;
 326         tmp = g_strdup(src);
 327
 328         if(str && *str) {
 329                 g_free(*str);
 330                 *str = tmp;
 331         }
 332         return tmp;
 333 }
 334
 335 static WebKitWebView *
 336 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 337         Client *n = newclient();
 338         return n->view;
 339 }
 340
 341 static gboolean
 342 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r,
 343                 gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 344         if(!webkit_web_view_can_show_mime_type(v, m)) {
 345                 webkit_web_policy_decision_download(p);
 346                 return TRUE;
 347         }
 348         return FALSE;
 349 }
 350
 351 static gboolean
 352 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r,
 353                 WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p,
 354                 Client *c) {
 355         Arg arg;
 356
 357         if(webkit_web_navigation_action_get_reason(n) ==
 358                         WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 359                 webkit_web_policy_decision_ignore(p);
 360                 arg.v = (void *)webkit_network_request_get_uri(r);
 361                 newwindow(NULL, &arg, 0);
 362                 return TRUE;
 363         }
 364         return FALSE;
 365 }
 366
 367 static void
 368 destroyclient(Client *c) {
 369         Client *p;
 370
 371         webkit_web_view_stop_loading(c->view);
 372         gtk_widget_destroy(c->indicator);
 373         gtk_widget_destroy(GTK_WIDGET(c->view));
 374         gtk_widget_destroy(c->scroll);
 375         gtk_widget_destroy(c->vbox);
 376         gtk_widget_destroy(c->win);
 377
 378         for(p = clients; p && p->next != c; p = p->next);
 379         if(p) {
 380                 p->next = c->next;
 381         } else {
 382                 clients = c->next;
 383         }
 384         free(c);
 385         if(clients == NULL)
 386                 gtk_main_quit();
 387 }
 388
 389 static void
 390 destroywin(GtkWidget* w, Client *c) {
 391         destroyclient(c);
 392 }
 393
 394 static void
 395 die(const char *errstr, ...) {
 396         va_list ap;
 397
 398         va_start(ap, errstr);
 399         vfprintf(stderr, errstr, ap);
 400         va_end(ap);
 401         exit(EXIT_FAILURE);
 402 }
 403
 404 static void
 405 drawindicator(Client *c) {
 406         gint width;
 407         const char *uri;
 408         char *colorname;
 409         GtkWidget *w;
 410         GdkGC *gc;
 411         GdkColor fg;
 412
 413         uri = geturi(c);
 414         w = c->indicator;
 415         width = c->progress * w->allocation.width / 100;
 416         gc = gdk_gc_new(w->window);
 417         if(strstr(uri, "https://") == uri) {
 418                 if(usingproxy) {
 419                         colorname = c->sslfailed? progress_proxy_untrust :
 420                                 progress_proxy_trust;
 421                 } else {
 422                         colorname = c->sslfailed? progress_untrust :
 423                                 progress_trust;
 424                 }
 425         } else {
 426                 if(usingproxy) {
 427                         colorname = progress_proxy;
 428                 } else {
 429                         colorname = progress;
 430                 }
 431         }
 432
 433         gdk_color_parse(colorname, &fg);
 434         gdk_gc_set_rgb_fg_color(gc, &fg);
 435         gdk_draw_rectangle(w->window,
 436                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 437                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 438         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 439                         w->allocation.height);
 440         g_object_unref(gc);
 441 }
 442
 443 static gboolean
 444 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 445         drawindicator(c);
 446         return TRUE;
 447 }
 448
 449 static void
 450 find(Client *c, const Arg *arg) {
 451         const char *s;
 452
 453         s = getatom(c, AtomFind);
 454         gboolean forward = *(gboolean *)arg;
 455         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 456 }
 457
 458 static void
 459 fullscreen(Client *c, const Arg *arg) {
 460         if(c->fullscreen) {
 461                 gtk_window_unfullscreen(GTK_WINDOW(c->win));
 462         } else {
 463                 gtk_window_fullscreen(GTK_WINDOW(c->win));
 464         }
 465         c->fullscreen = !c->fullscreen;
 466 }
 467
 468 static const char *
 469 getatom(Client *c, int a) {
 470         static char buf[BUFSIZ];
 471         Atom adummy;
 472         int idummy;
 473         unsigned long ldummy;
 474         unsigned char *p = NULL;
 475
 476         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 477                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 478                         &adummy, &idummy, &ldummy, &ldummy, &p);
 479         if(p)
 480                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 481         else
 482                 buf[0] = '\0';
 483         XFree(p);
 484         return buf;
 485 }
 486
 487 static char *
 488 geturi(Client *c) {
 489         char *uri;
 490
 491         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 492                 uri = "about:blank";
 493         return uri;
 494 }
 495
 496 static gboolean
 497 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 498         Arg arg;
 499
 500         updatewinid(c);
 501         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o), geturi(c));
 502         spawn(c, &arg);
 503         return FALSE;
 504 }
 505
 506 static void
 507 inspector(Client *c, const Arg *arg) {
 508         if(c->isinspector)
 509                 return;
 510         webkit_web_inspector_show(c->inspector);
 511 }
 512
 513 static WebKitWebView *
 514 inspector_new(WebKitWebInspector *i, WebKitWebView *v, Client *c) {
 515         Client *n = newclient();
 516         n->isinspector = true;
 517
 518         return n->view;
 519 }
 520
 521 static gboolean
 522 inspector_show(WebKitWebInspector *i, Client *c) {
 523         gtk_widget_show(GTK_WIDGET(webkit_web_inspector_get_web_view(i)));
 524         return true;
 525 }
 526
 527 static gboolean
 528 inspector_close(WebKitWebInspector *i, Client *c) {
 529         gtk_widget_hide(GTK_WIDGET(webkit_web_inspector_get_web_view(i)));
 530         return true;
 531 }
 532
 533 static void
 534 inspector_finished(WebKitWebInspector *i, Client *c) {
 535         g_free(c->inspector);
 536 }
 537
 538 static gboolean
 539 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 540         guint i;
 541         gboolean processed = FALSE;
 542
 543         updatewinid(c);
 544         for(i = 0; i < LENGTH(keys); i++) {
 545                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 546                                 && (ev->state & keys[i].mod) == keys[i].mod
 547                                 && keys[i].func) {
 548                         keys[i].func(c, &(keys[i].arg));
 549                         processed = TRUE;
 550                 }
 551         }
 552
 553         return processed;
 554 }
 555
 556 static void
 557 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 558         if(l) {
 559                 c->linkhover = copystr(&c->linkhover, l);
 560         } else if(c->linkhover) {
 561                 free(c->linkhover);
 562                 c->linkhover = NULL;
 563         }
 564         update(c);
 565 }
 566
 567 static void
 568 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 569         WebKitWebFrame *frame;
 570         WebKitWebDataSource *src;
 571         WebKitNetworkRequest *request;
 572         SoupMessage *msg;
 573         char *uri;
 574
 575         switch(webkit_web_view_get_load_status (c->view)) {
 576         case WEBKIT_LOAD_COMMITTED:
 577                 uri = geturi(c);
 578                 if(strstr(uri, "https://") == uri) {
 579                         frame = webkit_web_view_get_main_frame(c->view);
 580                         src = webkit_web_frame_get_data_source(frame);
 581                         request = webkit_web_data_source_get_request(src);
 582                         msg = webkit_network_request_get_message(request);
 583                         c->sslfailed = soup_message_get_flags(msg)
 584                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 585                 }
 586                 setatom(c, AtomUri, uri);
 587                 break;
 588         case WEBKIT_LOAD_FINISHED:
 589                 c->progress = 100;
 590                 update(c);
 591                 break;
 592         default:
 593                 break;
 594         }
 595 }
 596
 597 static void
 598 loaduri(Client *c, const Arg *arg) {
 599         char *u, *rp;
 600         const char *uri = (char *)arg->v;
 601         Arg a = { .b = FALSE };
 602
 603         if(strcmp(uri, "") == 0)
 604                 return;
 605
 606         /* In case it's a file path. */
 607         if(uri[0] == '/') {
 608                 rp = realpath(uri, NULL);
 609                 u = g_strdup_printf("file://%s", rp);
 610                 free(rp);
 611         } else {
 612                 u = g_strrstr(uri, "://") ? g_strdup(uri)
 613                         : g_strdup_printf("http://%s", uri);
 614         }
 615
 616         /* prevents endless loop */
 617         if(c->uri && strcmp(u, c->uri) == 0) {
 618                 reload(c, &a);
 619         } else {
 620                 webkit_web_view_load_uri(c->view, u);
 621                 c->progress = 0;
 622                 c->title = copystr(&c->title, u);
 623                 g_free(u);
 624                 update(c);
 625         }
 626 }
 627
 628 static void
 629 navigate(Client *c, const Arg *arg) {
 630         int steps = *(int *)arg;
 631         webkit_web_view_go_back_or_forward(c->view, steps);
 632 }
 633
 634 static Client *
 635 newclient(void) {
 636         Client *c;
 637         WebKitWebSettings *settings;
 638         WebKitWebFrame *frame;
 639         GdkGeometry hints = { 1, 1 };
 640         char *uri, *ua;
 641
 642         if(!(c = calloc(1, sizeof(Client))))
 643                 die("Cannot malloc!\n");
 644
 645         /* Window */
 646         if(embed) {
 647                 c->win = gtk_plug_new(embed);
 648         } else {
 649                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 650
 651                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 652                  * is always correct, so we should still call this function.
 653                  * But when doing so, we *must* differentiate between a
 654                  * WM_CLASS and a resource on the window.  By convention, the
 655                  * window class (WM_CLASS) is capped, while the resource is in
 656                  * lowercase.   Both these values come as a pair.
 657                  */
 658                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 659
 660                 /* TA:  20091214:  And set the role here as well -- so that
 661                  * sessions can pick this up.
 662                  */
 663                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 664         }
 665         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 666         g_signal_connect(G_OBJECT(c->win),
 667                         "destroy",
 668                         G_CALLBACK(destroywin), c);
 669         g_signal_connect(G_OBJECT(c->win),
 670                         "key-press-event",
 671                         G_CALLBACK(keypress), c);
 672
 673         /* VBox */
 674         c->vbox = gtk_vbox_new(FALSE, 0);
 675
 676         /* Scrolled Window */
 677         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 678         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 679                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 680
 681         /* Webview */
 682         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 683         g_signal_connect(G_OBJECT(c->view),
 684                         "title-changed",
 685                         G_CALLBACK(titlechange), c);
 686         g_signal_connect(G_OBJECT(c->view),
 687                         "hovering-over-link",
 688                         G_CALLBACK(linkhover), c);
 689         g_signal_connect(G_OBJECT(c->view),
 690                         "create-web-view",
 691                         G_CALLBACK(createwindow), c);
 692         g_signal_connect(G_OBJECT(c->view),
 693                         "new-window-policy-decision-requested",
 694                         G_CALLBACK(decidewindow), c);
 695         g_signal_connect(G_OBJECT(c->view),
 696                         "mime-type-policy-decision-requested",
 697                         G_CALLBACK(decidedownload), c);
 698         g_signal_connect(G_OBJECT(c->view),
 699                         "window-object-cleared",
 700                         G_CALLBACK(windowobjectcleared), c);
 701         g_signal_connect(G_OBJECT(c->view),
 702                         "notify::load-status",
 703                         G_CALLBACK(loadstatuschange), c);
 704         g_signal_connect(G_OBJECT(c->view),
 705                         "notify::progress",
 706                         G_CALLBACK(progresschange), c);
 707         g_signal_connect(G_OBJECT(c->view),
 708                         "download-requested",
 709                         G_CALLBACK(initdownload), c);
 710         g_signal_connect(G_OBJECT(c->view),
 711                         "button-release-event",
 712                         G_CALLBACK(buttonrelease), c);
 713         g_signal_connect(G_OBJECT(c->view),
 714                         "populate-popup",
 715                         G_CALLBACK(populatepopup), c);
 716         g_signal_connect(G_OBJECT(c->view),
 717                         "resource-request-starting",
 718                         G_CALLBACK(beforerequest), c);
 719
 720         /* Indicator */
 721         c->indicator = gtk_drawing_area_new();
 722         gtk_widget_set_size_request(c->indicator, 0, indicator_thickness);
 723         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 724                         G_CALLBACK (exposeindicator), c);
 725
 726         /* Arranging */
 727         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 728         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 729         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 730         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 731
 732         /* Setup */
 733         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE,
 734                         FALSE, 0, GTK_PACK_START);
 735         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE,
 736                         TRUE, 0, GTK_PACK_START);
 737         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 738         gtk_widget_show(c->vbox);
 739         gtk_widget_show(c->scroll);
 740         gtk_widget_show(GTK_WIDGET(c->view));
 741         gtk_widget_show(c->win);
 742         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints,
 743                         GDK_HINT_MIN_SIZE);
 744         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 745         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 746         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 747
 748         frame = webkit_web_view_get_main_frame(c->view);
 749         runscript(frame);
 750         settings = webkit_web_view_get_settings(c->view);
 751         if(!(ua = getenv("SURF_USERAGENT")))
 752                 ua = useragent;
 753         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 754         uri = g_strconcat("file://", stylefile, NULL);
 755         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 756         g_object_set(G_OBJECT(settings), "auto-load-images", loadimages,
 757                         NULL);
 758         g_object_set(G_OBJECT(settings), "enable-plugins", enableplugins,
 759                         NULL);
 760         g_object_set(G_OBJECT(settings), "enable-scripts", enablescripts,
 761                         NULL);
 762         g_object_set(G_OBJECT(settings), "enable-spatial-navigation",
 763                         enablespatialbrowsing, NULL);
 764         g_object_set(G_OBJECT(settings), "enable-developer-extras",
 765                         enableinspector, NULL);
 766
 767         if(enableinspector) {
 768                 c->inspector = WEBKIT_WEB_INSPECTOR(
 769                                 webkit_web_view_get_inspector(c->view));
 770                 g_signal_connect(G_OBJECT(c->inspector), "inspect-web-view",
 771                                 G_CALLBACK(inspector_new), c);
 772                 g_signal_connect(G_OBJECT(c->inspector), "show-window",
 773                                 G_CALLBACK(inspector_show), c);
 774                 g_signal_connect(G_OBJECT(c->inspector), "close-window",
 775                                 G_CALLBACK(inspector_close), c);
 776                 g_signal_connect(G_OBJECT(c->inspector), "finished",
 777                                 G_CALLBACK(inspector_finished), c);
 778                 c->isinspector = false;
 779         }
 780
 781         g_free(uri);
 782
 783         setatom(c, AtomFind, "");
 784         setatom(c, AtomUri, "about:blank");
 785         if(hidebackground)
 786                 webkit_web_view_set_transparent(c->view, TRUE);
 787
 788         c->title = NULL;
 789         c->next = clients;
 790         clients = c;
 791         if(showxid) {
 792                 gdk_display_sync(gtk_widget_get_display(c->win));
 793                 printf("%u\n",
 794                         (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 795                 fflush(NULL);
 796                 if (fclose(stdout) != 0) {
 797                         die("Error closing stdout");
 798                 }
 799         }
 800         return c;
 801 }
 802
 803 static void
 804 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 805         guint i = 0;
 806         const char *cmd[10], *uri;
 807         const Arg a = { .v = (void *)cmd };
 808         char tmp[64];
 809
 810         cmd[i++] = argv0;
 811         if(embed && !noembed) {
 812                 cmd[i++] = "-e";
 813                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 814                 cmd[i++] = tmp;
 815         }
 816         if(!enablescripts)
 817                 cmd[i++] = "-s";
 818         if(!enableplugins)
 819                 cmd[i++] = "-p";
 820         if(!loadimages)
 821                 cmd[i++] = "-i";
 822         if(showxid)
 823                 cmd[i++] = "-x";
 824         cmd[i++] = "--";
 825         uri = arg->v ? (char *)arg->v : c->linkhover;
 826         if(uri)
 827                 cmd[i++] = uri;
 828         cmd[i++] = NULL;
 829         spawn(NULL, &a);
 830 }
 831
 832 static void
 833 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c) {
 834         GList *items = gtk_container_get_children(GTK_CONTAINER(menu));
 835
 836         for(GList *l = items; l; l = l->next) {
 837                 g_signal_connect(l->data, "activate", G_CALLBACK(popupactivate), c);
 838         }
 839
 840         g_list_free(items);
 841 }
 842
 843 static void
 844 popupactivate(GtkMenuItem *menu, Client *c) {
 845         /*
 846          * context-menu-action-2000     open link
 847          * context-menu-action-1        open link in window
 848          * context-menu-action-2        download linked file
 849          * context-menu-action-3        copy link location
 850          * context-menu-action-13       reload
 851          * context-menu-action-10       back
 852          * context-menu-action-11       forward
 853          * context-menu-action-12       stop
 854          */
 855
 856         GtkAction *a = NULL;
 857         const char *name;
 858         GtkClipboard *prisel;
 859
 860         a = gtk_activatable_get_related_action(GTK_ACTIVATABLE(menu));
 861         if(a == NULL)
 862                 return;
 863
 864         name = gtk_action_get_name(a);
 865         if(!g_strcmp0(name, "context-menu-action-3")) {
 866                 prisel = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 867                 gtk_clipboard_set_text(prisel, c->linkhover, -1);
 868         }
 869 }
 870
 871 static void
 872 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 873         Arg arg = {.v = text };
 874         if(text != NULL)
 875                 loaduri((Client *) d, &arg);
 876 }
 877
 878 static void
 879 print(Client *c, const Arg *arg) {
 880         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 881 }
 882
 883 static GdkFilterReturn
 884 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 885         Client *c = (Client *)d;
 886         XPropertyEvent *ev;
 887         Arg arg;
 888
 889         if(((XEvent *)e)->type == PropertyNotify) {
 890                 ev = &((XEvent *)e)->xproperty;
 891                 if(ev->state == PropertyNewValue) {
 892                         if(ev->atom == atoms[AtomFind]) {
 893                                 arg.b = TRUE;
 894                                 find(c, &arg);
 895                                 return GDK_FILTER_REMOVE;
 896                         }
 897                         else if(ev->atom == atoms[AtomGo]) {
 898                                 arg.v = getatom(c, AtomGo);
 899                                 loaduri(c, &arg);
 900                                 return GDK_FILTER_REMOVE;
 901                         }
 902                 }
 903         }
 904         return GDK_FILTER_CONTINUE;
 905 }
 906
 907 static void
 908 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 909         c->progress = webkit_web_view_get_progress(c->view) * 100;
 910         update(c);
 911 }
 912
 913 static void
 914 reload(Client *c, const Arg *arg) {
 915         gboolean nocache = *(gboolean *)arg;
 916         if(nocache)
 917                  webkit_web_view_reload_bypass_cache(c->view);
 918         else
 919                  webkit_web_view_reload(c->view);
 920 }
 921
 922 static void
 923 scroll_h(Client *c, const Arg *arg) {
 924         scroll(gtk_scrolled_window_get_hadjustment(
 925                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 926 }
 927
 928 static void
 929 scroll_v(Client *c, const Arg *arg) {
 930         scroll(gtk_scrolled_window_get_vadjustment(
 931                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 932 }
 933
 934 static void
 935 scroll(GtkAdjustment *a, const Arg *arg) {
 936         gdouble v;
 937
 938         v = gtk_adjustment_get_value(a);
 939         switch (arg->i){
 940         case +10000:
 941         case -10000:
 942                 v += gtk_adjustment_get_page_increment(a) *
 943                         (arg->i / 10000);
 944                 break;
 945         case +20000:
 946         case -20000:
 947         default:
 948                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 949         }
 950
 951         v = MAX(v, 0.0);
 952         v = MIN(v, gtk_adjustment_get_upper(a) -
 953                         gtk_adjustment_get_page_size(a));
 954         gtk_adjustment_set_value(a, v);
 955 }
 956
 957 static void
 958 setatom(Client *c, int a, const char *v) {
 959         XSync(dpy, False);
 960         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 961                         atoms[a], XA_STRING, 8, PropModeReplace,
 962                         (unsigned char *)v, strlen(v) + 1);
 963 }
 964
 965 static void
 966 setup(void) {
 967         char *proxy;
 968         char *new_proxy;
 969         SoupURI *puri;
 970         SoupSession *s;
 971
 972         /* clean up any zombies immediately */
 973         sigchld(0);
 974         gtk_init(NULL, NULL);
 975         if (!g_thread_supported())
 976                 g_thread_init(NULL);
 977
 978         dpy = GDK_DISPLAY();
 979
 980         /* atoms */
 981         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 982         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 983         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 984
 985         /* dirs and files */
 986         cookiefile = buildpath(cookiefile);
 987         scriptfile = buildpath(scriptfile);
 988         stylefile = buildpath(stylefile);
 989
 990         /* request handler */
 991         s = webkit_get_default_session();
 992
 993         /* cookie jar */
 994         soup_session_add_feature(s,
 995                         SOUP_SESSION_FEATURE(cookiejar_new(cookiefile,
 996                                         FALSE)));
 997
 998         /* ssl */
 999         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
1000         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
1001
1002         /* proxy */
1003         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
1004                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
1005                         g_strdup_printf("http://%s", proxy);
1006                 puri = soup_uri_new(new_proxy);
1007                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
1008                 soup_uri_free(puri);
1009                 g_free(new_proxy);
1010                 usingproxy = 1;
1011         }
1012 }
1013
1014 static void
1015 sigchld(int unused) {
1016         if(signal(SIGCHLD, sigchld) == SIG_ERR)
1017                 die("Can't install SIGCHLD handler");
1018         while(0 < waitpid(-1, NULL, WNOHANG));
1019 }
1020
1021 static void
1022 source(Client *c, const Arg *arg) {
1023         Arg a = { .b = FALSE };
1024         gboolean s;
1025
1026         s = webkit_web_view_get_view_source_mode(c->view);
1027         webkit_web_view_set_view_source_mode(c->view, !s);
1028         reload(c, &a);
1029 }
1030
1031 static void
1032 spawn(Client *c, const Arg *arg) {
1033         if(fork() == 0) {
1034                 if(dpy)
1035                         close(ConnectionNumber(dpy));
1036                 setsid();
1037                 execvp(((char **)arg->v)[0], (char **)arg->v);
1038                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
1039                 perror(" failed");
1040                 exit(0);
1041         }
1042 }
1043
1044 static void
1045 eval(Client *c, const Arg *arg) {
1046         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
1047         evalscript(webkit_web_frame_get_global_context(frame),
1048                         ((char **)arg->v)[0], "");
1049 }
1050
1051 static void
1052 stop(Client *c, const Arg *arg) {
1053         webkit_web_view_stop_loading(c->view);
1054 }
1055
1056 static void
1057 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
1058         c->title = copystr(&c->title, t);
1059         update(c);
1060 }
1061
1062 static void
1063 toggle(Client *c, const Arg *arg) {
1064         WebKitWebSettings *settings;
1065         char *name = (char *)arg->v;
1066         gboolean value;
1067         Arg a = { .b = FALSE };
1068
1069         settings = webkit_web_view_get_settings(c->view);
1070         g_object_get(G_OBJECT(settings), name, &value, NULL);
1071         g_object_set(G_OBJECT(settings), name, !value, NULL);
1072
1073         reload(c,&a);
1074 }
1075
1076 static void
1077 gettogglestat(Client *c){
1078         gboolean value;
1079         WebKitWebSettings *settings = webkit_web_view_get_settings(c->view);
1080
1081         g_object_get(G_OBJECT(settings), "enable-caret-browsing",
1082                         &value, NULL);
1083         togglestat[0] = value? 'C': 'c';
1084
1085         g_object_get(G_OBJECT(settings), "auto-load-images", &value, NULL);
1086         togglestat[1] = value? 'I': 'i';
1087
1088         g_object_get(G_OBJECT(settings), "enable-scripts", &value, NULL);
1089         togglestat[2] = value? 'S': 's';
1090
1091         g_object_get(G_OBJECT(settings), "enable-plugins", &value, NULL);
1092         togglestat[3] = value? 'V': 'v';
1093
1094         togglestat[4] = '\0';
1095 }
1096
1097
1098 static void
1099 update(Client *c) {
1100         char *t;
1101
1102         gettogglestat(c);
1103
1104         if(c->linkhover) {
1105                 t = g_strdup_printf("%s| %s", togglestat, c->linkhover);
1106         } else if(c->progress != 100) {
1107                 drawindicator(c);
1108                 gtk_widget_show(c->indicator);
1109                 t = g_strdup_printf("[%i%%] %s| %s", c->progress, togglestat,
1110                                 c->title);
1111         } else {
1112                 gtk_widget_hide_all(c->indicator);
1113                 t = g_strdup_printf("%s| %s", togglestat, c->title);
1114         }
1115
1116         gtk_window_set_title(GTK_WINDOW(c->win), t);
1117         g_free(t);
1118 }
1119
1120 static void
1121 updatewinid(Client *c) {
1122         snprintf(winid, LENGTH(winid), "%u",
1123                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
1124 }
1125
1126 static void
1127 usage(void) {
1128         die("usage: %s [-inpsvx] [-c cookiefile] [-e xid] [-r scriptfile]"
1129                 " [-t stylefile] [-u useragent] [uri]\n", basename(argv0));
1130 }
1131
1132 static void
1133 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js,
1134                 JSObjectRef win, Client *c) {
1135         runscript(frame);
1136 }
1137
1138 static void
1139 zoom(Client *c, const Arg *arg) {
1140         c->zoomed = TRUE;
1141         if(arg->i < 0) {
1142                 /* zoom out */
1143                 webkit_web_view_zoom_out(c->view);
1144         } else if(arg->i > 0) {
1145                 /* zoom in */
1146                 webkit_web_view_zoom_in(c->view);
1147         } else {
1148                 /* reset */
1149                 c->zoomed = FALSE;
1150                 webkit_web_view_set_zoom_level(c->view, 1.0);
1151         }
1152 }
1153
1154 int
1155 main(int argc, char *argv[]) {
1156         Arg arg;
1157
1158         memset(&arg, 0, sizeof(arg));
1159
1160         /* command line args */
1161         ARGBEGIN {
1162         case 'c':
1163                 cookiefile = EARGF(usage());
1164                 break;
1165         case 'e':
1166                 embed = strtol(EARGF(usage()), NULL, 0);
1167                 break;
1168         case 'i':
1169                 loadimages = 0;
1170                 break;
1171         case 'n':
1172                 enableinspector = 0;
1173                 break;
1174         case 'p':
1175                 enableplugins = 0;
1176                 break;
1177         case 'r':
1178                 scriptfile = EARGF(usage());
1179                 break;
1180         case 's':
1181                 enablescripts = 0;
1182                 break;
1183         case 't':
1184                 stylefile = EARGF(usage());
1185                 break;
1186         case 'u':
1187                 useragent = EARGF(usage());
1188                 break;
1189         case 'v':
1190                 die("surf-"VERSION", ©2009-2012 surf engineers, "
1191                                 "see LICENSE for details\n");
1192         case 'x':
1193                 showxid = TRUE;
1194                 break;
1195         default:
1196                 usage();
1197         } ARGEND;
1198         if(argc > 0)
1199                 arg.v = argv[0];
1200
1201         setup();
1202         newclient();
1203         if(arg.v)
1204                 loaduri(clients, &arg);
1205
1206         gtk_main();
1207         cleanup();
1208
1209         return EXIT_SUCCESS;
1210 }
1211