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