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