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