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