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 *cookies;
  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 static gboolean lockcookie = FALSE;
  74
  75 static const char *autouri(Client *c);
  76 static char *buildpath(const char *path);
  77 static void changecookie(SoupCookieJar *jar, SoupCookie *o, SoupCookie *n, gpointer p);
  78 static void cleanup(void);
  79 static void clipboard(Client *c, const Arg *arg);
  80 static void context(WebKitWebView *v, GtkMenu *m, Client *c);
  81 static char *copystr(char **str, const char *src);
  82 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  83 static void destroyclient(Client *c);
  84 static void destroywin(GtkWidget* w, Client *c);
  85 static void die(char *str);
  86 static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
  87 static void drawindicator(Client *c);
  88 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  89 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  90 static char *geturi(Client *c);
  91 static void hidesearch(Client *c, const Arg *arg);
  92 static void hideuri(Client *c, const Arg *arg);
  93 static void itemclick(GtkMenuItem *mi, Client *c);
  94 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  95 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  96 static void loadcommit(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 reloadcookies();
 108 static void reload(Client *c, const Arg *arg);
 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 *j, SoupCookie *oc, SoupCookie *c, gpointer p) {
 161         SoupDate *e;
 162         SoupCookieJar *jar;
 163
 164         if(lockcookie)
 165                 return;
 166         if(c && c->expires == NULL) {
 167                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 168                 c = soup_cookie_copy(c);
 169                 soup_cookie_set_expires(c, e);
 170         }
 171
 172         jar = soup_cookie_jar_text_new(cookiefile, FALSE);
 173         if(c)
 174                 soup_cookie_jar_add_cookie(jar, soup_cookie_copy(c));
 175         else
 176                 soup_cookie_jar_delete_cookie(jar, oc);
 177         g_object_unref(jar);
 178 }
 179
 180 void
 181 cleanup(void) {
 182         while(clients)
 183                 destroyclient(clients);
 184         g_free(cookiefile);
 185         g_free(dldir);
 186         g_free(scriptfile);
 187         g_free(stylefile);
 188 }
 189
 190 void
 191 clipboard(Client *c, const Arg *arg) {
 192         gboolean paste = *(gboolean *)arg;
 193
 194         if(paste)
 195                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 196         else
 197                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
 198 }
 199
 200 void
 201 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 202         int i;
 203         GtkContainer *parent;
 204
 205         gtk_widget_hide_all(GTK_WIDGET(m));
 206         gtk_widget_show(GTK_WIDGET(m));
 207         for(i = 0; i < LENGTH(items); i++) {
 208                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 209                 if(parent)
 210                         gtk_container_remove(parent, c->items[i]);
 211                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 212                 gtk_widget_show(c->items[i]);
 213         }
 214 }
 215
 216 char *
 217 copystr(char **str, const char *src) {
 218         char *tmp;
 219         tmp = g_strdup(src);
 220
 221         if(str && *str) {
 222                 g_free(*str);
 223                 *str = tmp;
 224         }
 225         return tmp;
 226 }
 227
 228 void
 229 destroyclient(Client *c) {
 230         int i;
 231         Client *p;
 232
 233         gtk_widget_destroy(GTK_WIDGET(c->view));
 234         gtk_widget_destroy(c->scroll);
 235         gtk_widget_destroy(c->uribar);
 236         gtk_widget_destroy(c->searchbar);
 237         gtk_widget_destroy(c->vbox);
 238         gtk_widget_destroy(c->win);
 239         for(i = 0; i < LENGTH(items); i++)
 240                 gtk_widget_destroy(c->items[i]);
 241         free(c->items);
 242
 243         for(p = clients; p && p->next != c; p = p->next);
 244         if(p)
 245                 p->next = c->next;
 246         else
 247                 clients = c->next;
 248         free(c);
 249         if(clients == NULL)
 250                 gtk_main_quit();
 251 }
 252
 253 gboolean
 254 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 255         Arg arg;
 256         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 257                 webkit_web_policy_decision_ignore(p);
 258                 arg.v = (void *)webkit_network_request_get_uri(r);
 259                 newwindow(NULL, &arg);
 260                 return TRUE;
 261         }
 262         return FALSE;
 263 }
 264
 265 void
 266 destroywin(GtkWidget* w, Client *c) {
 267         destroyclient(c);
 268 }
 269
 270 void
 271 die(char *str) {
 272         fputs(str, stderr);
 273         exit(EXIT_FAILURE);
 274 }
 275
 276 void
 277 drawindicator(Client *c) {
 278         gint width;
 279         char *uri;
 280         GtkWidget *w;
 281         GdkGC *gc;
 282         GdkColor fg;
 283
 284         uri = geturi(c);
 285         w = c->indicator;
 286         width = c->progress * w->allocation.width / 100;
 287         gc = gdk_gc_new(w->window);
 288         gdk_color_parse(strstr(uri, "https://") == uri ?
 289                         progress_trust : progress, &fg);
 290         gdk_gc_set_rgb_fg_color(gc, &fg);
 291         gdk_draw_rectangle(w->window,
 292                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 293                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 294         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 295                         w->allocation.height);
 296         g_object_unref(gc);
 297 }
 298
 299 gboolean
 300 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 301         drawindicator(c);
 302         return TRUE;
 303 }
 304
 305 void
 306 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 307         WebKitDownloadStatus status;
 308
 309         status = webkit_download_get_status(c->download);
 310         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 311                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 312         }
 313         update(c);
 314 }
 315
 316 gboolean
 317 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 318         const char *filename;
 319         char *uri, *html;
 320
 321         stop(c, NULL);
 322         c->download = o;
 323         filename = webkit_download_get_suggested_filename(o);
 324         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 325         webkit_download_set_destination_uri(c->download, uri);
 326         c->progress = 0;
 327         g_free(uri);
 328         html = g_strdup_printf("Download <b>%s</b>...", filename);
 329         webkit_web_view_load_html_string(c->view, html,
 330                         webkit_download_get_uri(c->download));
 331         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 332         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 333         webkit_download_start(c->download);
 334
 335         c->title = copystr(&c->title, filename);
 336         update(c);
 337         g_free(html);
 338         return TRUE;
 339 }
 340
 341 char *
 342 geturi(Client *c) {
 343         char *uri;
 344
 345         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 346                 uri = copystr(NULL, "about:blank");
 347         return uri;
 348 }
 349
 350 void
 351 hidesearch(Client *c, const Arg *arg) {
 352         gtk_widget_hide(c->searchbar);
 353         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 354 }
 355
 356 void
 357 hideuri(Client *c, const Arg *arg) {
 358         gtk_widget_hide(c->uribar);
 359         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 360 }
 361
 362 void
 363 itemclick(GtkMenuItem *mi, Client *c) {
 364         int i;
 365         const char *label;
 366
 367         label = gtk_menu_item_get_label(mi);
 368         for(i = 0; i < LENGTH(items); i++)
 369                 if(!strcmp(items[i].label, label))
 370                         items[i].func(c, &(items[i].arg));
 371 }
 372
 373 gboolean
 374 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 375         guint i, focus;
 376         gboolean processed = FALSE;
 377
 378         if(ev->type != GDK_KEY_PRESS)
 379                 return FALSE;
 380         if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
 381                 focus = SearchBar;
 382         else if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 383                 focus = UriBar;
 384         else
 385                 focus = Browser;
 386         updatewinid(c);
 387         for(i = 0; i < LENGTH(keys); i++) {
 388                 if(focus & keys[i].focus
 389                                 && gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 390                                 && CLEANMASK(ev->state) == keys[i].mod
 391                                 && keys[i].func) {
 392                         keys[i].func(c, &(keys[i].arg));
 393                         processed = TRUE;
 394                 }
 395         }
 396         return processed;
 397 }
 398
 399 void
 400 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 401         if(l)
 402                 c->linkhover = copystr(&c->linkhover, l);
 403         else if(c->linkhover) {
 404                 free(c->linkhover);
 405                 c->linkhover = NULL;
 406         }
 407         update(c);
 408 }
 409
 410 void
 411 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 412         char *uri;
 413
 414         ignore_once = TRUE;
 415         uri = geturi(c);
 416         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), uriprop,
 417                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 418                         strlen(uri) + 1);
 419
 420         reloadcookies();
 421 }
 422
 423 void
 424 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 425         c->progress = 0;
 426         update(c);
 427 }
 428
 429 void
 430 loaduri(Client *c, const Arg *arg) {
 431         char *u;
 432         const char *uri = (char *)arg->v;
 433
 434         if(!uri)
 435                 uri = autouri(c);
 436         if(!uri)
 437                 return;
 438         u = g_strrstr(uri, "://") ? g_strdup(uri)
 439                 : g_strdup_printf("http://%s", uri);
 440         webkit_web_view_load_uri(c->view, u);
 441         c->progress = 0;
 442         c->title = copystr(&c->title, u);
 443         g_free(u);
 444         update(c);
 445 }
 446
 447 void
 448 navigate(Client *c, const Arg *arg) {
 449         gint steps = *(gint *)arg;
 450         webkit_web_view_go_back_or_forward(c->view, steps);
 451 }
 452
 453 Client *
 454 newclient(void) {
 455         int i;
 456         Client *c;
 457         WebKitWebSettings *settings;
 458         char *uri;
 459
 460         if(!(c = calloc(1, sizeof(Client))))
 461                 die("Cannot malloc!\n");
 462         /* Window */
 463         if(embed) {
 464                 c->win = gtk_plug_new(embed);
 465         }
 466         else {
 467                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 468                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 469         }
 470         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 471         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 472         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 473
 474         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 475                 die("Cannot malloc!\n");
 476
 477         /* contextmenu */
 478         for(i = 0; i < LENGTH(items); i++) {
 479                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 480                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 481                                 G_CALLBACK(itemclick), c);
 482         }
 483
 484         /* VBox */
 485         c->vbox = gtk_vbox_new(FALSE, 0);
 486
 487         /* scrolled window */
 488         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 489         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 490                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 491
 492         /* webview */
 493         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 494         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 495         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 496         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 497         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), 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), "download-requested", G_CALLBACK(initdownload), c);
 502         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 503         g_signal_connect(G_OBJECT(c->view), "focus-in-event", G_CALLBACK(focusview), c);
 504         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 505
 506         /* uribar */
 507         c->uribar = gtk_entry_new();
 508         gtk_entry_set_has_frame(GTK_ENTRY(c->uribar), FALSE);
 509
 510         /* searchbar */
 511         c->searchbar = gtk_entry_new();
 512         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 513
 514         /* indicator */
 515         c->indicator = gtk_drawing_area_new();
 516         gtk_widget_set_size_request(c->indicator, 0, 2);
 517         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 518                         G_CALLBACK (exposeindicator), c);
 519
 520         /* Arranging */
 521         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 522         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 523         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 524         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 525         gtk_container_add(GTK_CONTAINER(c->vbox), c->uribar);
 526         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 527
 528         /* Setup */
 529         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->uribar, FALSE, FALSE, 0, GTK_PACK_START);
 530         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 531         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 532         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 533         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 534         gtk_widget_hide_all(c->searchbar);
 535         gtk_widget_hide_all(c->uribar);
 536         gtk_widget_show(c->vbox);
 537         gtk_widget_show(c->indicator);
 538         gtk_widget_show(c->scroll);
 539         gtk_widget_show(GTK_WIDGET(c->view));
 540         gtk_widget_show(c->win);
 541         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 542         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 543         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 544         settings = webkit_web_view_get_settings(c->view);
 545         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 546         uri = g_strconcat("file://", stylefile, NULL);
 547         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 548         g_free(uri);
 549
 550         c->download = NULL;
 551         c->title = NULL;
 552         c->next = clients;
 553         clients = c;
 554         if(showxid) {
 555                 gdk_display_sync(gtk_widget_get_display(c->win));
 556                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 557                 fflush(NULL);
 558         }
 559         return c;
 560 }
 561
 562 void
 563 newwindow(Client *c, const Arg *arg) {
 564         guint i = 0;
 565         const char *cmd[7], *uri;
 566         const Arg a = { .v = (void *)cmd };
 567         char tmp[64];
 568
 569         cmd[i++] = progname;
 570         if(embed) {
 571                 cmd[i++] = "-e";
 572                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 573                 cmd[i++] = tmp;
 574         }
 575         if(showxid) {
 576                 cmd[i++] = "-x";
 577         }
 578         cmd[i++] = "--";
 579         uri = arg->v ? (char *)arg->v : autouri(c);
 580         if(uri)
 581                 cmd[i++] = uri;
 582         cmd[i++] = NULL;
 583         spawn(NULL, &a);
 584 }
 585
 586 WebKitWebView *
 587 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 588         Client *n = newclient();
 589         return n->view;
 590 }
 591
 592 void
 593 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 594         Arg arg = {.v = text };
 595         if(text != NULL)
 596                 loaduri((Client *) d, &arg);
 597 }
 598
 599 GdkFilterReturn
 600 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 601         Client *c = (Client *)d;
 602         XPropertyEvent *ev;
 603         Atom adummy;
 604         gint idummy;
 605         unsigned long ldummy;
 606         unsigned char *buf = NULL;
 607         Arg arg;
 608
 609         if(((XEvent *)e)->type == PropertyNotify) {
 610                 ev = &((XEvent *)e)->xproperty;
 611                 if(ev->atom == uriprop && ev->state == PropertyNewValue) {
 612                         if(ignore_once)
 613                                ignore_once = FALSE;
 614                         else {
 615                                 XGetWindowProperty(dpy, ev->window, uriprop, 0L, BUFSIZ, False, XA_STRING,
 616                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 617                                 arg.v = buf;
 618                                 loaduri(c, &arg);
 619                                 XFree(buf);
 620                         }
 621                         return GDK_FILTER_REMOVE;
 622                 }
 623         }
 624         return GDK_FILTER_CONTINUE;
 625 }
 626
 627 void
 628 print(Client *c, const Arg *arg) {
 629         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 630 }
 631
 632 void
 633 progresschange(WebKitWebView *v, gint p, Client *c) {
 634         c->progress = p;
 635         update(c);
 636 }
 637
 638 void
 639 reload(Client *c, const Arg *arg) {
 640         gboolean nocache = *(gboolean *)arg;
 641         if(nocache)
 642                  webkit_web_view_reload_bypass_cache(c->view);
 643         else
 644                  webkit_web_view_reload(c->view);
 645 }
 646
 647 void
 648 reloadcookies() {
 649         SoupCookieJar *jar;
 650         GSList *l, *e;
 651
 652         lockcookie = TRUE;
 653         for(l = e = soup_cookie_jar_all_cookies(cookies); e; e = e->next)
 654                 soup_cookie_jar_delete_cookie(cookies, (SoupCookie *)e->data);
 655         soup_cookies_free(l);
 656         jar = soup_cookie_jar_text_new(cookiefile, TRUE);
 657         for(l = e = soup_cookie_jar_all_cookies(jar); e; e = e->next)
 658                 soup_cookie_jar_add_cookie(cookies, (SoupCookie *)e->data);
 659         g_slist_free(l);
 660         lockcookie = FALSE;
 661         g_object_unref(jar);
 662 }
 663
 664 void
 665 scroll(Client *c, const Arg *arg) {
 666         gdouble v;
 667         GtkAdjustment *a;
 668
 669         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 670         v = gtk_adjustment_get_value(a);
 671         v += gtk_adjustment_get_step_increment(a) * arg->i;
 672         v = MAX(v, 0.0);
 673         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 674         gtk_adjustment_set_value(a, v);
 675 }
 676
 677 void
 678 sigchld(int unused) {
 679         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 680                 die("Can't install SIGCHLD handler");
 681         while(0 < waitpid(-1, NULL, WNOHANG));
 682 }
 683
 684 void
 685 setup(void) {
 686         SoupSession *s;
 687
 688         /* clean up any zombies immediately */
 689         sigchld(0);
 690         gtk_init(NULL, NULL);
 691         if (!g_thread_supported())
 692                 g_thread_init(NULL);
 693
 694         dpy = GDK_DISPLAY();
 695         session = webkit_get_default_session();
 696         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 697
 698         /* create dirs and files */
 699         cookiefile = buildpath(cookiefile);
 700         dldir = buildpath(dldir);
 701         scriptfile = buildpath(scriptfile);
 702         stylefile = buildpath(stylefile);
 703
 704         /* cookie persistance */
 705         s = webkit_get_default_session();
 706         cookies = soup_cookie_jar_new();
 707         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookies));
 708         g_signal_connect(cookies, "changed", G_CALLBACK(changecookie), NULL);
 709         reloadcookies();
 710 }
 711
 712 void
 713 showsearch(Client *c, const Arg *arg) {
 714         hideuri(c, NULL);
 715         gtk_widget_show(c->searchbar);
 716         gtk_widget_grab_focus(c->searchbar);
 717 }
 718
 719 void
 720 source(Client *c, const Arg *arg) {
 721         Arg a = { .b = FALSE };
 722         gboolean s;
 723
 724         s = webkit_web_view_get_view_source_mode(c->view);
 725         webkit_web_view_set_view_source_mode(c->view, !s);
 726         reload(c, &a);
 727 }
 728
 729 void
 730 searchtext(Client *c, const Arg *arg) {
 731         const char *text;
 732         gboolean forward = *(gboolean *)arg;
 733         text = gtk_entry_get_text(GTK_ENTRY(c->searchbar));
 734         webkit_web_view_search_text(c->view, text, FALSE, forward, TRUE);
 735         webkit_web_view_mark_text_matches(c->view, text, FALSE, 0);
 736 }
 737
 738 void
 739 showuri(Client *c, const Arg *arg) {
 740         char *uri;
 741
 742         hidesearch(c, NULL);
 743         uri = geturi(c);
 744         gtk_entry_set_text(GTK_ENTRY(c->uribar), uri);
 745         gtk_widget_show(c->uribar);
 746         gtk_widget_grab_focus(c->uribar);
 747 }
 748
 749 void
 750 stop(Client *c, const Arg *arg) {
 751         if(c->download)
 752                 webkit_download_cancel(c->download);
 753         else
 754                 webkit_web_view_stop_loading(c->view);
 755         c->download = NULL;
 756 }
 757
 758 void
 759 spawn(Client *c, const Arg *arg) {
 760         if(fork() == 0) {
 761                 if(dpy)
 762                         close(ConnectionNumber(dpy));
 763                 setsid();
 764                 execvp(((char **)arg->v)[0], (char **)arg->v);
 765                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 766                 perror(" failed");
 767                 exit(0);
 768         }
 769 }
 770
 771 void
 772 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 773         c->title = copystr(&c->title, t);
 774         update(c);
 775 }
 776
 777 gboolean
 778 focusview(GtkWidget *w, GdkEventFocus *e, Client *c) {
 779         hidesearch(c, NULL);
 780         hideuri(c, NULL);
 781         return FALSE;
 782 }
 783
 784 void
 785 usage(void) {
 786         fputs("surf - simple browser\n", stderr);
 787         die("usage: surf [-e Window] [-x] [uri]\n");
 788 }
 789
 790 void
 791 update(Client *c) {
 792         char *t;
 793
 794         if(c->progress != 100)
 795                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 796         else if(c->linkhover)
 797                 t = g_strdup(c->linkhover);
 798         else
 799                 t = g_strdup(c->title);
 800         drawindicator(c);
 801         gtk_window_set_title(GTK_WINDOW(c->win), t);
 802         g_free(t);
 803
 804 }
 805
 806 void
 807 updatewinid(Client *c) {
 808         snprintf(winid, LENGTH(winid), "%u",
 809                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 810 }
 811
 812 void
 813 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 814         JSStringRef jsscript;
 815         char *script;
 816         JSValueRef exception = NULL;
 817         GError *error;
 818
 819         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 820                 jsscript = JSStringCreateWithUTF8CString(script);
 821                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 822         }
 823 }
 824
 825 void
 826 zoom(Client *c, const Arg *arg) {
 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                 webkit_web_view_set_zoom_level(c->view, 1.0);
 833 }
 834
 835 int main(int argc, char *argv[]) {
 836         int i;
 837         Arg arg;
 838
 839         progname = argv[0];
 840         /* command line args */
 841         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 842                 if(!strcmp(argv[i], "-x"))
 843                         showxid = TRUE;
 844                 else if(!strcmp(argv[i], "-e")) {
 845                         if(++i < argc)
 846                                 embed = atoi(argv[i]);
 847                         else
 848                                 usage();
 849                 }
 850                 else if(!strcmp(argv[i], "--")) {
 851                         i++;
 852                         break;
 853                 }
 854                 else if(!strcmp(argv[i], "-v"))
 855                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 856                 else
 857                         usage();
 858         }
 859         if(i < argc)
 860                 arg.v = argv[i];
 861         setup();
 862         newclient();
 863         if(arg.v) {
 864                 loaduri(clients, &arg);
 865         }
 866         gtk_main();
 867         cleanup();
 868         return EXIT_SUCCESS;
 869 }