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         const gboolean b;
  28         const gint i;
  29         const void *v;
  30 };
  31
  32 typedef struct Client {
  33         GtkWidget *win, *scroll, *vbox, *uribar, *searchbar, *indicator;
  34         GtkWidget **items;
  35         WebKitWebView *view;
  36         WebKitDownload *download;
  37         char *title, *linkhover;
  38         gint progress;
  39         struct Client *next;
  40 } Client;
  41
  42 typedef struct {
  43         char *label;
  44         void (*func)(Client *c, const Arg *arg);
  45         const Arg arg;
  46 } Item;
  47
  48 typedef enum {
  49         Browser = 0x0001,
  50         SearchBar = 0x0010,
  51         UriBar = 0x0100,
  52         Any = ~0,
  53 } KeyFocus;
  54
  55 typedef struct {
  56         guint mod;
  57         guint keyval;
  58         void (*func)(Client *c, const Arg *arg);
  59         const Arg arg;
  60         KeyFocus focus;
  61 } Key;
  62
  63 static Display *dpy;
  64 static Atom uriprop;
  65 static SoupCookieJar *cookiejar;
  66 static SoupSession *session;
  67 static Client *clients = NULL;
  68 static GdkNativeWindow embed = 0;
  69 static gboolean showxid = FALSE;
  70 static gboolean ignore_once = FALSE;
  71 static char winid[64];
  72 static char *progname;
  73
  74 static const char *autouri(Client *c);
  75 static char *buildpath(const char *path);
  76 static void changecookie(SoupCookieJar *jar, SoupCookie *o, SoupCookie *n, gpointer p);
  77 static void cleanup(void);
  78 static void clipboard(Client *c, const Arg *arg);
  79 static void context(WebKitWebView *v, GtkMenu *m, Client *c);
  80 static char *copystr(char **str, const char *src);
  81 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  82 static void destroyclient(Client *c);
  83 static void destroywin(GtkWidget* w, Client *c);
  84 static void die(char *str);
  85 static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
  86 static void drawindicator(Client *c);
  87 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  88 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  89 static char *geturi(Client *c);
  90 static void hidesearch(Client *c, const Arg *arg);
  91 static void hideuri(Client *c, const Arg *arg);
  92 static void itemclick(GtkMenuItem *mi, Client *c);
  93 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  94 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  95 static void loadcommit(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  96 static void loadfinished(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  97 static void loadstart(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  98 static void loaduri(Client *c, const Arg *arg);
  99 static void navigate(Client *c, const Arg *arg);
 100 static Client *newclient(void);
 101 static void newwindow(Client *c, const Arg *arg);
 102 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
 103 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 104 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 105 static void print(Client *c, const Arg *arg);
 106 static void progresschange(WebKitWebView *v, gint p, Client *c);
 107 static void reload(Client *c, const Arg *arg);
 108 static void reloadcookie();
 109 static void sigchld(int unused);
 110 static void setup(void);
 111 static void spawn(Client *c, const Arg *arg);
 112 static void scroll(Client *c, const Arg *arg);
 113 static void searchtext(Client *c, const Arg *arg);
 114 static void source(Client *c, const Arg *arg);
 115 static void showsearch(Client *c, const Arg *arg);
 116 static void showuri(Client *c, const Arg *arg);
 117 static void stop(Client *c, const Arg *arg);
 118 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 119 static gboolean focusview(GtkWidget *w, GdkEventFocus *e, Client *c);
 120 static void usage(void);
 121 static void update(Client *c);
 122 static void updatewinid(Client *c);
 123 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 124 static void zoom(Client *c, const Arg *arg);
 125
 126 /* configuration, allows nested code to access above variables */
 127 #include "config.h"
 128
 129 const char *
 130 autouri(Client *c) {
 131         if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 132                 return gtk_entry_get_text(GTK_ENTRY(c->uribar));
 133         else if(c->linkhover)
 134                 return c->linkhover;
 135         return NULL;
 136 }
 137
 138 char *
 139 buildpath(const char *path) {
 140         char *apath, *p;
 141         FILE *f;
 142
 143         /* creating directory */
 144         if(path[0] == '/')
 145                 apath = g_strdup(path);
 146         else
 147                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 148         if((p = strrchr(apath, '/'))) {
 149                 *p = '\0';
 150                 g_mkdir_with_parents(apath, 0755);
 151                 *p = '/';
 152         }
 153         /* creating file (gives error when apath ends with "/") */
 154         if((f = g_fopen(apath, "a")))
 155                 fclose(f);
 156         return apath;
 157 }
 158
 159 void
 160 changecookie(SoupCookieJar *jar, SoupCookie *oc, SoupCookie *c, gpointer p) {
 161         SoupDate *e;
 162
 163         if(c && c->expires == NULL) {
 164                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 165                 c = soup_cookie_copy(c);
 166                 soup_cookie_set_expires(c, e);
 167                 soup_cookie_jar_add_cookie(cookiejar, c);
 168         }
 169 }
 170
 171 void
 172 cleanup(void) {
 173         while(clients)
 174                 destroyclient(clients);
 175         g_free(cookiefile);
 176         g_free(dldir);
 177         g_free(scriptfile);
 178         g_free(stylefile);
 179 }
 180
 181 void
 182 clipboard(Client *c, const Arg *arg) {
 183         gboolean paste = *(gboolean *)arg;
 184
 185         if(paste)
 186                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 187         else
 188                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
 189 }
 190
 191 void
 192 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 193         int i;
 194         GtkContainer *parent;
 195
 196         gtk_widget_hide_all(GTK_WIDGET(m));
 197         gtk_widget_show(GTK_WIDGET(m));
 198         for(i = 0; i < LENGTH(items); i++) {
 199                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 200                 if(parent)
 201                         gtk_container_remove(parent, c->items[i]);
 202                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 203                 gtk_widget_show(c->items[i]);
 204         }
 205 }
 206
 207 char *
 208 copystr(char **str, const char *src) {
 209         char *tmp;
 210         tmp = g_strdup(src);
 211
 212         if(str && *str) {
 213                 g_free(*str);
 214                 *str = tmp;
 215         }
 216         return tmp;
 217 }
 218
 219 void
 220 destroyclient(Client *c) {
 221         int i;
 222         Client *p;
 223
 224         gtk_widget_destroy(GTK_WIDGET(c->view));
 225         gtk_widget_destroy(c->scroll);
 226         gtk_widget_destroy(c->uribar);
 227         gtk_widget_destroy(c->searchbar);
 228         gtk_widget_destroy(c->vbox);
 229         gtk_widget_destroy(c->win);
 230         for(i = 0; i < LENGTH(items); i++)
 231                 gtk_widget_destroy(c->items[i]);
 232         free(c->items);
 233
 234         for(p = clients; p && p->next != c; p = p->next);
 235         if(p)
 236                 p->next = c->next;
 237         else
 238                 clients = c->next;
 239         free(c);
 240         if(clients == NULL)
 241                 gtk_main_quit();
 242 }
 243
 244 gboolean
 245 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 246         Arg arg;
 247         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 248                 webkit_web_policy_decision_ignore(p);
 249                 arg.v = (void *)webkit_network_request_get_uri(r);
 250                 newwindow(NULL, &arg);
 251                 return TRUE;
 252         }
 253         return FALSE;
 254 }
 255
 256 void
 257 destroywin(GtkWidget* w, Client *c) {
 258         destroyclient(c);
 259 }
 260
 261 void
 262 die(char *str) {
 263         fputs(str, stderr);
 264         exit(EXIT_FAILURE);
 265 }
 266
 267 void
 268 drawindicator(Client *c) {
 269         gint width;
 270         char *uri;
 271         GtkWidget *w;
 272         GdkGC *gc;
 273         GdkColor fg;
 274
 275         uri = geturi(c);
 276         w = c->indicator;
 277         width = c->progress * w->allocation.width / 100;
 278         gc = gdk_gc_new(w->window);
 279         gdk_color_parse(strstr(uri, "https://") == uri ?
 280                         progress_trust : progress, &fg);
 281         gdk_gc_set_rgb_fg_color(gc, &fg);
 282         gdk_draw_rectangle(w->window,
 283                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 284                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 285         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 286                         w->allocation.height);
 287         g_object_unref(gc);
 288 }
 289
 290 gboolean
 291 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 292         drawindicator(c);
 293         return TRUE;
 294 }
 295
 296 void
 297 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 298         WebKitDownloadStatus status;
 299
 300         status = webkit_download_get_status(c->download);
 301         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 302                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 303         }
 304         update(c);
 305 }
 306
 307 gboolean
 308 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 309         const char *filename;
 310         char *uri, *html;
 311
 312         stop(c, NULL);
 313         c->download = o;
 314         filename = webkit_download_get_suggested_filename(o);
 315         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 316         webkit_download_set_destination_uri(c->download, uri);
 317         c->progress = 0;
 318         g_free(uri);
 319         html = g_strdup_printf("Download <b>%s</b>...", filename);
 320         webkit_web_view_load_html_string(c->view, html,
 321                         webkit_download_get_uri(c->download));
 322         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 323         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 324         webkit_download_start(c->download);
 325
 326         c->title = copystr(&c->title, filename);
 327         update(c);
 328         g_free(html);
 329         return TRUE;
 330 }
 331
 332 char *
 333 geturi(Client *c) {
 334         char *uri;
 335
 336         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 337                 uri = copystr(NULL, "about:blank");
 338         return uri;
 339 }
 340
 341 void
 342 hidesearch(Client *c, const Arg *arg) {
 343         gtk_widget_hide(c->searchbar);
 344         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 345 }
 346
 347 void
 348 hideuri(Client *c, const Arg *arg) {
 349         gtk_widget_hide(c->uribar);
 350         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 351 }
 352
 353 void
 354 itemclick(GtkMenuItem *mi, Client *c) {
 355         int i;
 356         const char *label;
 357
 358         label = gtk_menu_item_get_label(mi);
 359         for(i = 0; i < LENGTH(items); i++)
 360                 if(!strcmp(items[i].label, label))
 361                         items[i].func(c, &(items[i].arg));
 362 }
 363
 364 gboolean
 365 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 366         guint i, focus;
 367         gboolean processed = FALSE;
 368
 369         if(ev->type != GDK_KEY_PRESS)
 370                 return FALSE;
 371         if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
 372                 focus = SearchBar;
 373         else if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 374                 focus = UriBar;
 375         else
 376                 focus = Browser;
 377         updatewinid(c);
 378         for(i = 0; i < LENGTH(keys); i++) {
 379                 if(focus & keys[i].focus
 380                                 && gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 381                                 && CLEANMASK(ev->state) == keys[i].mod
 382                                 && keys[i].func) {
 383                         keys[i].func(c, &(keys[i].arg));
 384                         processed = TRUE;
 385                 }
 386         }
 387         return processed;
 388 }
 389
 390 void
 391 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 392         if(l)
 393                 c->linkhover = copystr(&c->linkhover, l);
 394         else if(c->linkhover) {
 395                 free(c->linkhover);
 396                 c->linkhover = NULL;
 397         }
 398         update(c);
 399 }
 400
 401 void
 402 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 403         char *uri;
 404
 405         ignore_once = TRUE;
 406         uri = geturi(c);
 407         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), uriprop,
 408                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 409                         strlen(uri) + 1);
 410 }
 411
 412 void
 413 loadfinished(WebKitWebView *v, WebKitWebFrame *f, Client *c) {
 414         reloadcookie();
 415 }
 416
 417 void
 418 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 419         reloadcookie();
 420         c->progress = 0;
 421         update(c);
 422 }
 423
 424 void
 425 loaduri(Client *c, const Arg *arg) {
 426         char *u;
 427         const char *uri = (char *)arg->v;
 428
 429         if(!uri)
 430                 uri = autouri(c);
 431         if(!uri)
 432                 return;
 433         u = g_strrstr(uri, "://") ? g_strdup(uri)
 434                 : g_strdup_printf("http://%s", uri);
 435         webkit_web_view_load_uri(c->view, u);
 436         c->progress = 0;
 437         c->title = copystr(&c->title, u);
 438         g_free(u);
 439         update(c);
 440 }
 441
 442 void
 443 navigate(Client *c, const Arg *arg) {
 444         gint steps = *(gint *)arg;
 445         webkit_web_view_go_back_or_forward(c->view, steps);
 446 }
 447
 448 Client *
 449 newclient(void) {
 450         int i;
 451         Client *c;
 452         WebKitWebSettings *settings;
 453         char *uri;
 454
 455         if(!(c = calloc(1, sizeof(Client))))
 456                 die("Cannot malloc!\n");
 457         /* Window */
 458         if(embed) {
 459                 c->win = gtk_plug_new(embed);
 460         }
 461         else {
 462                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 463                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 464         }
 465         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 466         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 467         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 468
 469         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 470                 die("Cannot malloc!\n");
 471
 472         /* contextmenu */
 473         for(i = 0; i < LENGTH(items); i++) {
 474                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 475                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 476                                 G_CALLBACK(itemclick), c);
 477         }
 478
 479         /* VBox */
 480         c->vbox = gtk_vbox_new(FALSE, 0);
 481
 482         /* scrolled window */
 483         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 484         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 485                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 486
 487         /* webview */
 488         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 489         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 490         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 491         g_signal_connect(G_OBJECT(c->view), "load-finished", G_CALLBACK(loadfinished), c);
 492         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 493         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 494         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 495         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 496         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 497         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 498         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 499         g_signal_connect(G_OBJECT(c->view), "focus-in-event", G_CALLBACK(focusview), c);
 500         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 501
 502         /* uribar */
 503         c->uribar = gtk_entry_new();
 504         gtk_entry_set_has_frame(GTK_ENTRY(c->uribar), FALSE);
 505
 506         /* searchbar */
 507         c->searchbar = gtk_entry_new();
 508         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 509
 510         /* indicator */
 511         c->indicator = gtk_drawing_area_new();
 512         gtk_widget_set_size_request(c->indicator, 0, 2);
 513         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 514                         G_CALLBACK (exposeindicator), c);
 515
 516         /* Arranging */
 517         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 518         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 519         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 520         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 521         gtk_container_add(GTK_CONTAINER(c->vbox), c->uribar);
 522         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 523
 524         /* Setup */
 525         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->uribar, FALSE, FALSE, 0, GTK_PACK_START);
 526         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 527         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 528         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 529         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 530         gtk_widget_hide_all(c->searchbar);
 531         gtk_widget_hide_all(c->uribar);
 532         gtk_widget_show(c->vbox);
 533         gtk_widget_show(c->indicator);
 534         gtk_widget_show(c->scroll);
 535         gtk_widget_show(GTK_WIDGET(c->view));
 536         gtk_widget_show(c->win);
 537         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 538         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 539         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 540         settings = webkit_web_view_get_settings(c->view);
 541         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 542         uri = g_strconcat("file://", stylefile, NULL);
 543         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 544         g_free(uri);
 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 void
 559 newwindow(Client *c, const Arg *arg) {
 560         guint i = 0;
 561         const char *cmd[7], *uri;
 562         const Arg a = { .v = (void *)cmd };
 563         char tmp[64];
 564
 565         cmd[i++] = progname;
 566         if(embed) {
 567                 cmd[i++] = "-e";
 568                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 569                 cmd[i++] = tmp;
 570         }
 571         if(showxid) {
 572                 cmd[i++] = "-x";
 573         }
 574         cmd[i++] = "--";
 575         uri = arg->v ? (char *)arg->v : autouri(c);
 576         if(uri)
 577                 cmd[i++] = uri;
 578         cmd[i++] = NULL;
 579         spawn(NULL, &a);
 580 }
 581
 582 WebKitWebView *
 583 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 584         Client *n = newclient();
 585         return n->view;
 586 }
 587
 588 void
 589 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 590         Arg arg = {.v = text };
 591         if(text != NULL)
 592                 loaduri((Client *) d, &arg);
 593 }
 594
 595 GdkFilterReturn
 596 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 597         Client *c = (Client *)d;
 598         XPropertyEvent *ev;
 599         Atom adummy;
 600         gint idummy;
 601         unsigned long ldummy;
 602         unsigned char *buf = NULL;
 603         Arg arg;
 604
 605         if(((XEvent *)e)->type == PropertyNotify) {
 606                 ev = &((XEvent *)e)->xproperty;
 607                 if(ev->atom == uriprop && ev->state == PropertyNewValue) {
 608                         if(ignore_once)
 609                                ignore_once = FALSE;
 610                         else {
 611                                 XGetWindowProperty(dpy, ev->window, uriprop, 0L, BUFSIZ, False, XA_STRING,
 612                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 613                                 arg.v = buf;
 614                                 loaduri(c, &arg);
 615                                 XFree(buf);
 616                         }
 617                         return GDK_FILTER_REMOVE;
 618                 }
 619         }
 620         return GDK_FILTER_CONTINUE;
 621 }
 622
 623 void
 624 print(Client *c, const Arg *arg) {
 625         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 626 }
 627
 628 void
 629 progresschange(WebKitWebView *v, gint p, Client *c) {
 630         c->progress = p;
 631         update(c);
 632 }
 633
 634 void
 635 reload(Client *c, const Arg *arg) {
 636         gboolean nocache = *(gboolean *)arg;
 637         if(nocache)
 638                  webkit_web_view_reload_bypass_cache(c->view);
 639         else
 640                  webkit_web_view_reload(c->view);
 641 }
 642
 643 void
 644 reloadcookie(void) {
 645         SoupSession *s;
 646
 647         /* This forces the cookie to be written to hdd */
 648         s = webkit_get_default_session();
 649         soup_session_remove_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 650         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 651 }
 652
 653 void
 654 scroll(Client *c, const Arg *arg) {
 655         gdouble v;
 656         GtkAdjustment *a;
 657
 658         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 659         v = gtk_adjustment_get_value(a);
 660         v += gtk_adjustment_get_step_increment(a) * arg->i;
 661         v = MAX(v, 0.0);
 662         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 663         gtk_adjustment_set_value(a, v);
 664 }
 665
 666 void
 667 sigchld(int unused) {
 668         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 669                 die("Can't install SIGCHLD handler");
 670         while(0 < waitpid(-1, NULL, WNOHANG));
 671 }
 672
 673 void
 674 setup(void) {
 675         SoupSession *s;
 676
 677         /* clean up any zombies immediately */
 678         sigchld(0);
 679         gtk_init(NULL, NULL);
 680         if (!g_thread_supported())
 681                 g_thread_init(NULL);
 682
 683         dpy = GDK_DISPLAY();
 684         session = webkit_get_default_session();
 685         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 686
 687         /* create dirs and files */
 688         cookiefile = buildpath(cookiefile);
 689         dldir = buildpath(dldir);
 690         scriptfile = buildpath(scriptfile);
 691         stylefile = buildpath(stylefile);
 692
 693         /* cookie persistance */
 694         s = webkit_get_default_session();
 695         cookiejar = soup_cookie_jar_text_new(cookiefile, FALSE);
 696         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 697         g_signal_connect(cookiejar, "changed", G_CALLBACK(changecookie), NULL);
 698 }
 699
 700 void
 701 showsearch(Client *c, const Arg *arg) {
 702         hideuri(c, NULL);
 703         gtk_widget_show(c->searchbar);
 704         gtk_widget_grab_focus(c->searchbar);
 705 }
 706
 707 void
 708 source(Client *c, const Arg *arg) {
 709         Arg a = { .b = FALSE };
 710         gboolean s;
 711
 712         s = webkit_web_view_get_view_source_mode(c->view);
 713         webkit_web_view_set_view_source_mode(c->view, !s);
 714         reload(c, &a);
 715 }
 716
 717 void
 718 searchtext(Client *c, const Arg *arg) {
 719         const char *text;
 720         gboolean forward = *(gboolean *)arg;
 721         text = gtk_entry_get_text(GTK_ENTRY(c->searchbar));
 722         webkit_web_view_search_text(c->view, text, FALSE, forward, TRUE);
 723         webkit_web_view_mark_text_matches(c->view, text, FALSE, 0);
 724 }
 725
 726 void
 727 showuri(Client *c, const Arg *arg) {
 728         char *uri;
 729
 730         hidesearch(c, NULL);
 731         uri = geturi(c);
 732         gtk_entry_set_text(GTK_ENTRY(c->uribar), uri);
 733         gtk_widget_show(c->uribar);
 734         gtk_widget_grab_focus(c->uribar);
 735 }
 736
 737 void
 738 stop(Client *c, const Arg *arg) {
 739         if(c->download)
 740                 webkit_download_cancel(c->download);
 741         else
 742                 webkit_web_view_stop_loading(c->view);
 743         c->download = NULL;
 744 }
 745
 746 void
 747 spawn(Client *c, const Arg *arg) {
 748         if(fork() == 0) {
 749                 if(dpy)
 750                         close(ConnectionNumber(dpy));
 751                 setsid();
 752                 execvp(((char **)arg->v)[0], (char **)arg->v);
 753                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 754                 perror(" failed");
 755                 exit(0);
 756         }
 757 }
 758
 759 void
 760 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 761         c->title = copystr(&c->title, t);
 762         update(c);
 763 }
 764
 765 gboolean
 766 focusview(GtkWidget *w, GdkEventFocus *e, Client *c) {
 767         hidesearch(c, NULL);
 768         hideuri(c, NULL);
 769         return FALSE;
 770 }
 771
 772 void
 773 usage(void) {
 774         fputs("surf - simple browser\n", stderr);
 775         die("usage: surf [-e Window] [-x] [uri]\n");
 776 }
 777
 778 void
 779 update(Client *c) {
 780         char *t;
 781
 782         if(c->progress != 100)
 783                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 784         else if(c->linkhover)
 785                 t = g_strdup(c->linkhover);
 786         else
 787                 t = g_strdup(c->title);
 788         drawindicator(c);
 789         gtk_window_set_title(GTK_WINDOW(c->win), t);
 790         g_free(t);
 791
 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 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 802         JSStringRef jsscript;
 803         char *script;
 804         JSValueRef exception = NULL;
 805         GError *error;
 806
 807         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 808                 jsscript = JSStringCreateWithUTF8CString(script);
 809                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 810         }
 811 }
 812
 813 void
 814 zoom(Client *c, const Arg *arg) {
 815         if(arg->i < 0)          /* zoom out */
 816                 webkit_web_view_zoom_out(c->view);
 817         else if(arg->i > 0)     /* zoom in */
 818                 webkit_web_view_zoom_in(c->view);
 819         else                    /* reset */
 820                 webkit_web_view_set_zoom_level(c->view, 1.0);
 821 }
 822
 823 int main(int argc, char *argv[]) {
 824         int i;
 825         Arg arg;
 826
 827         progname = argv[0];
 828         /* command line args */
 829         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 830                 if(!strcmp(argv[i], "-x"))
 831                         showxid = TRUE;
 832                 else if(!strcmp(argv[i], "-e")) {
 833                         if(++i < argc)
 834                                 embed = atoi(argv[i]);
 835                         else
 836                                 usage();
 837                 }
 838                 else if(!strcmp(argv[i], "--")) {
 839                         i++;
 840                         break;
 841                 }
 842                 else if(!strcmp(argv[i], "-v"))
 843                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 844                 else
 845                         usage();
 846         }
 847         if(i < argc)
 848                 arg.v = argv[i];
 849         setup();
 850         newclient();
 851         if(arg.v) {
 852                 loaduri(clients, &arg);
 853         }
 854         gtk_main();
 855         cleanup();
 856         return EXIT_SUCCESS;
 857 }