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
  22 #define LENGTH(x)               (sizeof x / sizeof x[0])
  23 #define CLEANMASK(mask)         (mask & ~(GDK_MOD2_MASK))
  24
  25 typedef union Arg Arg;
  26 union Arg {
  27         gboolean b;
  28         gint i;
  29         const void *v;
  30 };
  31
  32 typedef struct Client {
  33         GtkWidget *win, *scroll, *vbox, *indicator;
  34         GtkWidget **items;
  35         WebKitWebView *view;
  36         WebKitDownload *download;
  37         char *title, *linkhover;
  38         const char *uri, *needle;
  39         gint progress;
  40         struct Client *next;
  41         gboolean zoomed;
  42 } Client;
  43
  44 typedef struct {
  45         char *label;
  46         void (*func)(Client *c, const Arg *arg);
  47         const Arg arg;
  48 } Item;
  49
  50 typedef struct {
  51         guint mod;
  52         guint keyval;
  53         void (*func)(Client *c, const Arg *arg);
  54         const Arg arg;
  55 } Key;
  56
  57 static Display *dpy;
  58 static Atom uriprop, findprop;
  59 static Client *clients = NULL;
  60 static GdkNativeWindow embed = 0;
  61 static gboolean showxid = FALSE;
  62 static int ignorexprop = 0;
  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 void context(WebKitWebView *v, GtkMenu *m, Client *c);
  71 static char *copystr(char **str, const char *src);
  72 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  73 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c);
  74 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  75 static void destroyclient(Client *c);
  76 static void destroywin(GtkWidget* w, Client *c);
  77 static void die(char *str);
  78 static void download(Client *c, const Arg *arg);
  79 static void drawindicator(Client *c);
  80 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  81 static void find(Client *c, const Arg *arg);
  82 static const char *getatom(Client *c, Atom a);
  83 static const char *getcookies(SoupURI *uri);
  84 static char *geturi(Client *c);
  85 void gotheaders(SoupMessage *msg, gpointer user_data);
  86 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  87 static void itemclick(GtkMenuItem *mi, Client *c);
  88 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  89 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  90 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
  91 static void loaduri(Client *c, const Arg *arg);
  92 static void navigate(Client *c, const Arg *arg);
  93 static Client *newclient(void);
  94 static void newwindow(Client *c, const Arg *arg);
  95 static void newrequest(SoupSession *s, SoupMessage *msg, gpointer v);
  96 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
  97 static void print(Client *c, const Arg *arg);
  98 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
  99 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 100 static void reload(Client *c, const Arg *arg);
 101 static void resize(GtkWidget *w, GtkAllocation *a, Client *c);
 102 static void scroll(Client *c, const Arg *arg);
 103 static void setatom(Client *c, Atom a, const char *v);
 104 static void setcookie(SoupCookie *c);
 105 static void setup(void);
 106 static void sigchld(int unused);
 107 static void source(Client *c, const Arg *arg);
 108 static void spawn(Client *c, const Arg *arg);
 109 static void stop(Client *c, const Arg *arg);
 110 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 111 static void update(Client *c);
 112 static void updatedownload(WebKitDownload *o, GParamSpec *pspec, Client *c);
 113 static void updatewinid(Client *c);
 114 static void usage(void);
 115 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 116 static void zoom(Client *c, const Arg *arg);
 117
 118 /* configuration, allows nested code to access above variables */
 119 #include "config.h"
 120
 121 char *
 122 buildpath(const char *path) {
 123         char *apath, *p;
 124         FILE *f;
 125
 126         /* creating directory */
 127         if(path[0] == '/')
 128                 apath = g_strdup(path);
 129         else
 130                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 131         if((p = strrchr(apath, '/'))) {
 132                 *p = '\0';
 133                 g_mkdir_with_parents(apath, 0755);
 134                 *p = '/';
 135         }
 136         /* creating file (gives error when apath ends with "/") */
 137         if((f = g_fopen(apath, "a")))
 138                 fclose(f);
 139         return apath;
 140 }
 141
 142 void
 143 cleanup(void) {
 144         while(clients)
 145                 destroyclient(clients);
 146         g_free(cookiefile);
 147         g_free(dldir);
 148         g_free(scriptfile);
 149         g_free(stylefile);
 150 }
 151
 152 void
 153 clipboard(Client *c, const Arg *arg) {
 154         gboolean paste = *(gboolean *)arg;
 155
 156         if(paste)
 157                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 158         else
 159                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 160 }
 161
 162 void
 163 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 164         int i;
 165         GtkContainer *parent;
 166
 167         gtk_widget_hide_all(GTK_WIDGET(m));
 168         gtk_widget_show(GTK_WIDGET(m));
 169         for(i = 0; i < LENGTH(items); i++) {
 170                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 171                 if(parent)
 172                         gtk_container_remove(parent, c->items[i]);
 173                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 174                 gtk_widget_show(c->items[i]);
 175         }
 176 }
 177
 178 char *
 179 copystr(char **str, const char *src) {
 180         char *tmp;
 181         tmp = g_strdup(src);
 182
 183         if(str && *str) {
 184                 g_free(*str);
 185                 *str = tmp;
 186         }
 187         return tmp;
 188 }
 189
 190 WebKitWebView *
 191 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 192         Client *n = newclient();
 193         return n->view;
 194 }
 195
 196 gboolean
 197 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 198         if(!webkit_web_view_can_show_mime_type(v, m)) {
 199                 webkit_web_policy_decision_download(p);
 200                 return TRUE;
 201         }
 202         return FALSE;
 203 }
 204
 205 gboolean
 206 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 207         Arg arg;
 208
 209         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 210                 webkit_web_policy_decision_ignore(p);
 211                 arg.v = (void *)webkit_network_request_get_uri(r);
 212                 newwindow(NULL, &arg);
 213                 return TRUE;
 214         }
 215         return FALSE;
 216 }
 217
 218 void
 219 destroyclient(Client *c) {
 220         int i;
 221         Client *p;
 222
 223         gtk_widget_destroy(c->indicator);
 224         gtk_widget_destroy(GTK_WIDGET(c->view));
 225         gtk_widget_destroy(c->scroll);
 226         gtk_widget_destroy(c->vbox);
 227         gtk_widget_destroy(c->win);
 228         for(i = 0; i < LENGTH(items); i++)
 229                 gtk_widget_destroy(c->items[i]);
 230         free(c->items);
 231
 232         for(p = clients; p && p->next != c; p = p->next);
 233         if(p)
 234                 p->next = c->next;
 235         else
 236                 clients = c->next;
 237         free(c);
 238         if(clients == NULL)
 239                 gtk_main_quit();
 240 }
 241
 242 void
 243 destroywin(GtkWidget* w, Client *c) {
 244         destroyclient(c);
 245 }
 246
 247 void
 248 die(char *str) {
 249         fputs(str, stderr);
 250         exit(EXIT_FAILURE);
 251 }
 252
 253 void
 254 download(Client *c, const Arg *arg) {
 255         char *uri;
 256         WebKitNetworkRequest *r;
 257         WebKitDownload       *dl;
 258
 259         if(arg->v)
 260                 uri = (char *)arg->v;
 261         else
 262                 uri = c->linkhover ? c->linkhover : geturi(c);
 263         r = webkit_network_request_new(uri);
 264         dl = webkit_download_new(r);
 265         initdownload(c->view, dl, c);
 266 }
 267
 268 void
 269 drawindicator(Client *c) {
 270         gint width;
 271         const char *uri;
 272         GtkWidget *w;
 273         GdkGC *gc;
 274         GdkColor fg;
 275
 276         uri = getatom(c, uriprop);
 277         w = c->indicator;
 278         width = c->progress * w->allocation.width / 100;
 279         gc = gdk_gc_new(w->window);
 280         gdk_color_parse(strstr(uri, "https://") == uri ?
 281                         progress_trust : progress, &fg);
 282         gdk_gc_set_rgb_fg_color(gc, &fg);
 283         gdk_draw_rectangle(w->window,
 284                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 285                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 286         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 287                         w->allocation.height);
 288         g_object_unref(gc);
 289 }
 290
 291 gboolean
 292 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 293         drawindicator(c);
 294         return TRUE;
 295 }
 296
 297 void
 298 find(Client *c, const Arg *arg) {
 299         const char *s;
 300
 301         s = getatom(c, findprop);
 302         gboolean forward = *(gboolean *)arg;
 303         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 304 }
 305
 306 const char *
 307 getcookies(SoupURI *uri) {
 308         return NULL;
 309 }
 310
 311 const char *
 312 getatom(Client *c, Atom a) {
 313         static char buf[BUFSIZ];
 314         Atom adummy;
 315         int idummy;
 316         unsigned long ldummy;
 317         unsigned char *p = NULL;
 318
 319         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 320                         a, 0L, BUFSIZ, False, XA_STRING,
 321                         &adummy, &idummy, &ldummy, &ldummy, &p);
 322         if(p)
 323                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 324         else
 325                 buf[0] = '\0';
 326         XFree(p);
 327         return buf;
 328 }
 329
 330 char *
 331 geturi(Client *c) {
 332         char *uri;
 333
 334         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 335                 uri = "about:blank";
 336         return uri;
 337 }
 338
 339 void
 340 gotheaders(SoupMessage *msg, gpointer v) {
 341         SoupURI *uri;
 342         GSList *l, *p;
 343
 344         uri = soup_message_get_uri(msg);
 345         for(p = l = soup_cookies_from_response(msg); p;
 346                 p = g_slist_next(p))  {
 347                 setcookie((SoupCookie *)p->data);
 348         }
 349         soup_cookies_free(l);
 350 }
 351
 352 gboolean
 353 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 354         const char *filename;
 355         char *uri, *html;
 356
 357         stop(c, NULL);
 358         c->download = o;
 359         filename = webkit_download_get_suggested_filename(o);
 360         if(!strcmp("", filename))
 361                 filename = "index.html";
 362         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 363         webkit_download_set_destination_uri(c->download, uri);
 364         c->progress = 0;
 365         g_free(uri);
 366         html = g_strdup_printf("Download <b>%s</b>...", filename);
 367         webkit_web_view_load_html_string(c->view, html,
 368                         webkit_download_get_uri(c->download));
 369         g_signal_connect(c->download, "notify::progress", G_CALLBACK(updatedownload), c);
 370         g_signal_connect(c->download, "notify::status", G_CALLBACK(updatedownload), c);
 371         webkit_download_start(c->download);
 372
 373         c->title = copystr(&c->title, filename);
 374         update(c);
 375         g_free(html);
 376         return TRUE;
 377 }
 378
 379 void
 380 itemclick(GtkMenuItem *mi, Client *c) {
 381         int i;
 382         const char *label;
 383
 384         label = gtk_menu_item_get_label(mi);
 385         for(i = 0; i < LENGTH(items); i++)
 386                 if(!strcmp(items[i].label, label))
 387                         items[i].func(c, &(items[i].arg));
 388 }
 389
 390 gboolean
 391 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 392         guint i;
 393         gboolean processed = FALSE;
 394
 395         updatewinid(c);
 396         for(i = 0; i < LENGTH(keys); i++) {
 397                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 398                                 && CLEANMASK(ev->state) == keys[i].mod
 399                                 && keys[i].func) {
 400                         keys[i].func(c, &(keys[i].arg));
 401                         processed = TRUE;
 402                 }
 403         }
 404         return processed;
 405 }
 406
 407 void
 408 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 409         if(l)
 410                 c->linkhover = copystr(&c->linkhover, l);
 411         else if(c->linkhover) {
 412                 free(c->linkhover);
 413                 c->linkhover = NULL;
 414         }
 415         update(c);
 416 }
 417
 418 void
 419 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 420         switch(webkit_web_view_get_load_status (c->view)) {
 421         case WEBKIT_LOAD_COMMITTED:
 422                 setatom(c, uriprop, geturi(c));
 423                 break;
 424         case WEBKIT_LOAD_FINISHED:
 425                 c->progress = 0;
 426                 update(c);
 427                 break;
 428         case WEBKIT_LOAD_PROVISIONAL:
 429         case WEBKIT_LOAD_FIRST_VISUALLY_NON_EMPTY_LAYOUT:
 430                 break;
 431         }
 432 }
 433
 434 void
 435 loaduri(Client *c, const Arg *arg) {
 436         char *u;
 437         const char *uri = (char *)arg->v;
 438         Arg a = { .b = FALSE };
 439
 440         if(strcmp(uri, "") == 0)
 441                 return;
 442         u = g_strrstr(uri, "://") ? g_strdup(uri)
 443                 : g_strdup_printf("http://%s", uri);
 444         /* prevents endless loop */
 445         if(c->uri && strcmp(u, c->uri) == 0) {
 446                 reload(c, &a);
 447         }
 448         else {
 449                 webkit_web_view_load_uri(c->view, u);
 450                 c->progress = 0;
 451                 c->title = copystr(&c->title, u);
 452                 g_free(u);
 453                 update(c);
 454         }
 455 }
 456
 457 void
 458 navigate(Client *c, const Arg *arg) {
 459         int steps = *(int *)arg;
 460         webkit_web_view_go_back_or_forward(c->view, steps);
 461 }
 462
 463 Client *
 464 newclient(void) {
 465         int i;
 466         Client *c;
 467         WebKitWebSettings *settings;
 468         GdkGeometry hints = { 1, 1 };
 469         char *uri, *ua;
 470
 471         if(!(c = calloc(1, sizeof(Client))))
 472                 die("Cannot malloc!\n");
 473         /* Window */
 474         if(embed) {
 475                 c->win = gtk_plug_new(embed);
 476         }
 477         else {
 478                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 479                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 480                  * is always correct, so we should still call this function.
 481                  * But when doing so, we *must* differentiate between a
 482                  * WM_CLASS and a resource on the window.  By convention, the
 483                  * window class (WM_CLASS) is capped, while the resource is in
 484                  * lowercase.   Both these values come as a pair.
 485                  */
 486                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 487
 488                 /* TA:  20091214:  And set the role here as well -- so that
 489                  * sessions can pick this up.
 490                  */
 491                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 492         }
 493         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 494         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 495         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 496         g_signal_connect(G_OBJECT(c->win), "size-allocate", G_CALLBACK(resize), c);
 497
 498         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 499                 die("Cannot malloc!\n");
 500
 501         /* contextmenu */
 502         for(i = 0; i < LENGTH(items); i++) {
 503                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 504                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 505                                 G_CALLBACK(itemclick), c);
 506         }
 507
 508         /* VBox */
 509         c->vbox = gtk_vbox_new(FALSE, 0);
 510
 511         /* Scrolled Window */
 512         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 513         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 514                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 515
 516         /* Webview */
 517         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 518         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 519         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 520         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 521         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 522         g_signal_connect(G_OBJECT(c->view), "mime-type-policy-decision-requested", G_CALLBACK(decidedownload), c);
 523         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 524         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 525         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 526         g_signal_connect(G_OBJECT(c->view), "notify::load-status", G_CALLBACK(loadstatuschange), c);
 527         g_signal_connect(G_OBJECT(c->view), "notify::progress", G_CALLBACK(progresschange), c);
 528
 529         /* Indicator */
 530         c->indicator = gtk_drawing_area_new();
 531         gtk_widget_set_size_request(c->indicator, 0, 2);
 532         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 533                         G_CALLBACK (exposeindicator), c);
 534
 535         /* Arranging */
 536         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 537         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 538         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 539         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 540
 541         /* Setup */
 542         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 543         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 544         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 545         gtk_widget_show(c->vbox);
 546         gtk_widget_show(c->indicator);
 547         gtk_widget_show(c->scroll);
 548         gtk_widget_show(GTK_WIDGET(c->view));
 549         gtk_widget_show(c->win);
 550         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 551         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 552         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 553         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 554         settings = webkit_web_view_get_settings(c->view);
 555         if(!(ua = getenv("SURF_USERAGENT")))
 556                 ua = useragent;
 557         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 558         uri = g_strconcat("file://", stylefile, NULL);
 559         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 560         g_object_set(G_OBJECT(settings), "auto-load-images", loadimage, NULL);
 561         g_object_set(G_OBJECT(settings), "enable-plugins", plugin, NULL);
 562         g_object_set(G_OBJECT(settings), "enable-scripts", script, NULL);
 563         g_free(uri);
 564         setatom(c, findprop, "");
 565         setatom(c, uriprop, "");
 566
 567         c->download = NULL;
 568         c->title = NULL;
 569         c->next = clients;
 570         clients = c;
 571         if(showxid) {
 572                 gdk_display_sync(gtk_widget_get_display(c->win));
 573                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 574                 fflush(NULL);
 575         }
 576         return c;
 577 }
 578
 579 void
 580 newrequest(SoupSession *s, SoupMessage *msg, gpointer v) {
 581         SoupMessageHeaders *h = msg->request_headers;
 582         SoupURI *uri;
 583         const char *c;
 584
 585         soup_message_headers_remove(h, "Cookie");
 586         uri = soup_message_get_uri(msg);
 587         if((c = getcookies(uri))) {
 588                 soup_message_headers_append(h, "Cookie", c);
 589         }
 590 }
 591
 592 void
 593 newwindow(Client *c, const Arg *arg) {
 594         guint i = 0;
 595         const char *cmd[10], *uri;
 596         const Arg a = { .v = (void *)cmd };
 597         char tmp[64];
 598
 599         cmd[i++] = progname;
 600         if(embed) {
 601                 cmd[i++] = "-e";
 602                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 603                 cmd[i++] = tmp;
 604         }
 605         if(!script)
 606                 cmd[i++] = "-s";
 607         if(!plugin)
 608                 cmd[i++] = "-p";
 609         if(!loadimage)
 610                 cmd[i++] = "-l";
 611         if(showxid)
 612                 cmd[i++] = "-x";
 613         cmd[i++] = "--";
 614         uri = arg->v ? (char *)arg->v : c->linkhover;
 615         if(uri)
 616                 cmd[i++] = uri;
 617         cmd[i++] = NULL;
 618         spawn(NULL, &a);
 619 }
 620
 621 void
 622 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 623         Arg arg = {.v = text };
 624         if(text != NULL)
 625                 loaduri((Client *) d, &arg);
 626 }
 627
 628 void
 629 print(Client *c, const Arg *arg) {
 630         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 631 }
 632
 633 GdkFilterReturn
 634 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 635         Client *c = (Client *)d;
 636         XPropertyEvent *ev;
 637         Arg arg;
 638
 639         if(((XEvent *)e)->type == PropertyNotify) {
 640                 ev = &((XEvent *)e)->xproperty;
 641                 if(ignorexprop)
 642                         ignorexprop--;
 643                 else if(ev->state == PropertyNewValue) {
 644                         if(ev->atom == uriprop) {
 645                                 arg.v = getatom(c, uriprop);
 646                                 loaduri(c, &arg);
 647                         }
 648                         else if(ev->atom == findprop) {
 649                                 arg.b = TRUE;
 650                                 find(c, &arg);
 651                         }
 652                         return GDK_FILTER_REMOVE;
 653                 }
 654         }
 655         return GDK_FILTER_CONTINUE;
 656 }
 657
 658 void
 659 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 660         c->progress = webkit_web_view_get_progress(c->view) * 100;
 661         update(c);
 662 }
 663
 664 void
 665 reload(Client *c, const Arg *arg) {
 666         gboolean nocache = *(gboolean *)arg;
 667         if(nocache)
 668                  webkit_web_view_reload_bypass_cache(c->view);
 669         else
 670                  webkit_web_view_reload(c->view);
 671 }
 672
 673 void
 674 resize(GtkWidget *w, GtkAllocation *a, Client *c) {
 675         double zoom;
 676
 677         if(c->zoomed)
 678                 return;
 679         zoom = webkit_web_view_get_zoom_level(c->view);
 680         if(a->width * a->height < 300 * 400 && zoom != 0.2)
 681                 webkit_web_view_set_zoom_level(c->view, 0.2);
 682         else if(zoom != 1.0)
 683                 webkit_web_view_set_zoom_level(c->view, 1.0);
 684 }
 685
 686 void
 687 scroll(Client *c, const Arg *arg) {
 688         gdouble v;
 689         GtkAdjustment *a;
 690
 691         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 692         v = gtk_adjustment_get_value(a);
 693         v += gtk_adjustment_get_step_increment(a) * arg->i;
 694         v = MAX(v, 0.0);
 695         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 696         gtk_adjustment_set_value(a, v);
 697 }
 698
 699 void
 700 setcookie(SoupCookie *c) {
 701
 702 }
 703
 704 void
 705 setatom(Client *c, Atom a, const char *v) {
 706         XSync(dpy, False);
 707         ignorexprop++;
 708         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), a,
 709                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 710                         strlen(v) + 1);
 711 }
 712
 713 void
 714 setup(void) {
 715         char *proxy;
 716         char *new_proxy;
 717         SoupURI *puri;
 718         SoupSession *s;
 719
 720         /* clean up any zombies immediately */
 721         sigchld(0);
 722         gtk_init(NULL, NULL);
 723         if (!g_thread_supported())
 724                 g_thread_init(NULL);
 725
 726         dpy = GDK_DISPLAY();
 727         s = webkit_get_default_session();
 728         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 729         findprop = XInternAtom(dpy, "_SURF_FIND", False);
 730
 731         /* dirs and files */
 732         cookiefile = buildpath(cookiefile);
 733         dldir = buildpath(dldir);
 734         scriptfile = buildpath(scriptfile);
 735         stylefile = buildpath(stylefile);
 736
 737         /* request handler */
 738         s = webkit_get_default_session();
 739         soup_session_remove_feature_by_type(s, soup_cookie_get_type());
 740         soup_session_remove_feature_by_type(s, soup_cookie_jar_get_type());
 741         g_signal_connect_after(G_OBJECT(s), "request-started", G_CALLBACK(newrequest), NULL);
 742         g_signal_connect_after(G_OBJECT(s), "got-headers", G_CALLBACK(gotheaders), NULL);
 743
 744
 745         /* proxy */
 746         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 747                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 748                         g_strdup_printf("http://%s", proxy);
 749
 750                 puri = soup_uri_new(new_proxy);
 751                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 752                 soup_uri_free(puri);
 753                 g_free(new_proxy);
 754         }
 755 }
 756
 757 void
 758 sigchld(int unused) {
 759         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 760                 die("Can't install SIGCHLD handler");
 761         while(0 < waitpid(-1, NULL, WNOHANG));
 762 }
 763
 764 void
 765 source(Client *c, const Arg *arg) {
 766         Arg a = { .b = FALSE };
 767         gboolean s;
 768
 769         s = webkit_web_view_get_view_source_mode(c->view);
 770         webkit_web_view_set_view_source_mode(c->view, !s);
 771         reload(c, &a);
 772 }
 773
 774 void
 775 spawn(Client *c, const Arg *arg) {
 776         if(fork() == 0) {
 777                 if(dpy)
 778                         close(ConnectionNumber(dpy));
 779                 setsid();
 780                 execvp(((char **)arg->v)[0], (char **)arg->v);
 781                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 782                 perror(" failed");
 783                 exit(0);
 784         }
 785 }
 786
 787 void
 788 stop(Client *c, const Arg *arg) {
 789         if(c->download)
 790                 webkit_download_cancel(c->download);
 791         else
 792                 webkit_web_view_stop_loading(c->view);
 793         c->download = NULL;
 794 }
 795
 796 void
 797 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 798         c->title = copystr(&c->title, t);
 799         update(c);
 800 }
 801
 802 void
 803 update(Client *c) {
 804         char *t;
 805
 806         if(c->progress != 100)
 807                 t = g_strdup_printf("[%i%%] %s", c->progress, c->title);
 808         else if(c->linkhover)
 809                 t = g_strdup(c->linkhover);
 810         else
 811                 t = g_strdup(c->title);
 812         drawindicator(c);
 813         gtk_window_set_title(GTK_WINDOW(c->win), t);
 814         g_free(t);
 815 }
 816
 817 void
 818 updatedownload(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 819         WebKitDownloadStatus status;
 820
 821         status = webkit_download_get_status(c->download);
 822         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 823                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 824         }
 825         update(c);
 826 }
 827
 828 void
 829 updatewinid(Client *c) {
 830         snprintf(winid, LENGTH(winid), "%u",
 831                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 832 }
 833
 834 void
 835 usage(void) {
 836         fputs("surf - simple browser\n", stderr);
 837         die("usage: surf [-e Window] [-x] [-i] [-p] [-s] [uri]\n");
 838 }
 839
 840 void
 841 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 842         JSStringRef jsscript;
 843         char *script;
 844         JSValueRef exception = NULL;
 845         GError *error;
 846
 847         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 848                 jsscript = JSStringCreateWithUTF8CString(script);
 849                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 850         }
 851 }
 852
 853 void
 854 zoom(Client *c, const Arg *arg) {
 855         c->zoomed = TRUE;
 856         if(arg->i < 0)          /* zoom out */
 857                 webkit_web_view_zoom_out(c->view);
 858         else if(arg->i > 0)     /* zoom in */
 859                 webkit_web_view_zoom_in(c->view);
 860         else {                  /* reset */
 861                 c->zoomed = FALSE;
 862                 webkit_web_view_set_zoom_level(c->view, 1.0);
 863         }
 864 }
 865
 866 int
 867 main(int argc, char *argv[]) {
 868         int i;
 869         Arg arg;
 870
 871         progname = argv[0];
 872         /* command line args */
 873         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-' &&
 874                         argv[i][1] != '\0' && argv[i][2] == '\0'; i++) {
 875                 if(!strcmp(argv[i], "--")) {
 876                         i++;
 877                         break;
 878                 }
 879                 switch(argv[i][1]) {
 880                 case 'x':
 881                         showxid = TRUE;
 882                         break;
 883                 case 'e':
 884                         if(++i < argc)
 885                                 embed = atoi(argv[i]);
 886                         else
 887                                 usage();
 888                         break;
 889                 case 'i':
 890                         loadimage = 0;
 891                         break;
 892                 case 'p':
 893                         plugin = 0;
 894                         break;
 895                 case 's':
 896                         script = 0;
 897                         break;
 898                 case 'v':
 899                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 900                 }
 901         }
 902         if(i < argc)
 903                 arg.v = argv[i];
 904         setup();
 905         newclient();
 906         if(arg.v)
 907                 loaduri(clients, &arg);
 908         gtk_main();
 909         cleanup();
 910         return EXIT_SUCCESS;
 911 }