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 Client *clients = NULL;
  66 static GdkNativeWindow embed = 0;
  67 static gboolean showxid = FALSE;
  68 static gboolean ignore_once = FALSE;
  69 static char winid[64];
  70 static char *progname;
  71
  72 static const char *autouri(Client *c);
  73 static char *buildpath(const char *path);
  74 static void cleanup(void);
  75 static void clipboard(Client *c, const Arg *arg);
  76 static void context(WebKitWebView *v, GtkMenu *m, Client *c);
  77 static char *copystr(char **str, const char *src);
  78 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  79 static void destroyclient(Client *c);
  80 static void destroywin(GtkWidget* w, Client *c);
  81 static void die(char *str);
  82 static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
  83 static void drawindicator(Client *c);
  84 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  85 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  86 static char *geturi(Client *c);
  87 static void hidesearch(Client *c, const Arg *arg);
  88 static void hideuri(Client *c, const Arg *arg);
  89 static void itemclick(GtkMenuItem *mi, Client *c);
  90 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  91 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  92 static void loadcommit(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  93 static void loadstart(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  94 static void loaduri(Client *c, const Arg *arg);
  95 static void navigate(Client *c, const Arg *arg);
  96 static Client *newclient(void);
  97 static void newwindow(Client *c, const Arg *arg);
  98 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  99 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 100 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 101 static void print(Client *c, const Arg *arg);
 102 static void progresschange(WebKitWebView *v, gint p, Client *c);
 103 static void reload(Client *c, const Arg *arg);
 104 static void request(SoupSession *s, SoupMessage *m, gpointer p);
 105 static void sigchld(int unused);
 106 static void setcookie(SoupMessage *m, gpointer p);
 107 static void setup(void);
 108 static void spawn(Client *c, const Arg *arg);
 109 static void scroll(Client *c, const Arg *arg);
 110 static void searchtext(Client *c, const Arg *arg);
 111 static void source(Client *c, const Arg *arg);
 112 static void showsearch(Client *c, const Arg *arg);
 113 static void showuri(Client *c, const Arg *arg);
 114 static void stop(Client *c, const Arg *arg);
 115 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 116 static gboolean focusview(GtkWidget *w, GdkEventFocus *e, Client *c);
 117 static void usage(void);
 118 static void update(Client *c);
 119 static void updatewinid(Client *c);
 120 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 121 static void zoom(Client *c, const Arg *arg);
 122
 123 /* configuration, allows nested code to access above variables */
 124 #include "config.h"
 125
 126 const char *
 127 autouri(Client *c) {
 128         if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 129                 return gtk_entry_get_text(GTK_ENTRY(c->uribar));
 130         else if(c->linkhover)
 131                 return c->linkhover;
 132         return NULL;
 133 }
 134
 135 char *
 136 buildpath(const char *path) {
 137         char *apath, *p;
 138         FILE *f;
 139
 140         /* creating directory */
 141         if(path[0] == '/')
 142                 apath = g_strdup(path);
 143         else
 144                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 145         if((p = strrchr(apath, '/'))) {
 146                 *p = '\0';
 147                 g_mkdir_with_parents(apath, 0755);
 148                 *p = '/';
 149         }
 150         /* creating file (gives error when apath ends with "/") */
 151         if((f = g_fopen(apath, "a")))
 152                 fclose(f);
 153         return apath;
 154 }
 155
 156 void
 157 cleanup(void) {
 158         while(clients)
 159                 destroyclient(clients);
 160         g_free(cookiefile);
 161         g_free(dldir);
 162         g_free(scriptfile);
 163         g_free(stylefile);
 164 }
 165
 166 void
 167 clipboard(Client *c, const Arg *arg) {
 168         gboolean paste = *(gboolean *)arg;
 169         const char *uri;
 170
 171         if(paste)
 172                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 173         else {
 174                 if(!(uri = autouri(c)))
 175                         uri = geturi(c);
 176                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri, -1);
 177         }
 178 }
 179
 180 void
 181 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 182         int i;
 183         GtkContainer *parent;
 184
 185         gtk_widget_hide_all(GTK_WIDGET(m));
 186         gtk_widget_show(GTK_WIDGET(m));
 187         for(i = 0; i < LENGTH(items); i++) {
 188                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 189                 if(parent)
 190                         gtk_container_remove(parent, c->items[i]);
 191                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 192                 gtk_widget_show(c->items[i]);
 193         }
 194 }
 195
 196 char *
 197 copystr(char **str, const char *src) {
 198         char *tmp;
 199         tmp = g_strdup(src);
 200
 201         if(str && *str) {
 202                 g_free(*str);
 203                 *str = tmp;
 204         }
 205         return tmp;
 206 }
 207
 208 void
 209 destroyclient(Client *c) {
 210         int i;
 211         Client *p;
 212
 213         gtk_widget_destroy(GTK_WIDGET(c->view));
 214         gtk_widget_destroy(c->scroll);
 215         gtk_widget_destroy(c->uribar);
 216         gtk_widget_destroy(c->searchbar);
 217         gtk_widget_destroy(c->vbox);
 218         gtk_widget_destroy(c->win);
 219         for(i = 0; i < LENGTH(items); i++)
 220                 gtk_widget_destroy(c->items[i]);
 221         free(c->items);
 222
 223         for(p = clients; p && p->next != c; p = p->next);
 224         if(p)
 225                 p->next = c->next;
 226         else
 227                 clients = c->next;
 228         free(c);
 229         if(clients == NULL)
 230                 gtk_main_quit();
 231 }
 232
 233 gboolean
 234 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 235         Arg arg;
 236         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 237                 webkit_web_policy_decision_ignore(p);
 238                 arg.v = (void *)webkit_network_request_get_uri(r);
 239                 newwindow(NULL, &arg);
 240                 return TRUE;
 241         }
 242         return FALSE;
 243 }
 244
 245 void
 246 destroywin(GtkWidget* w, Client *c) {
 247         destroyclient(c);
 248 }
 249
 250 void
 251 die(char *str) {
 252         fputs(str, stderr);
 253         exit(EXIT_FAILURE);
 254 }
 255
 256 void
 257 drawindicator(Client *c) {
 258         gint width;
 259         char *uri;
 260         GtkWidget *w;
 261         GdkGC *gc;
 262         GdkColor fg;
 263
 264         uri = geturi(c);
 265         w = c->indicator;
 266         width = c->progress * w->allocation.width / 100;
 267         gc = gdk_gc_new(w->window);
 268         gdk_color_parse(strstr(uri, "https://") == uri ?
 269                         progress_trust : progress, &fg);
 270         gdk_gc_set_rgb_fg_color(gc, &fg);
 271         gdk_draw_rectangle(w->window,
 272                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 273                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 274         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 275                         w->allocation.height);
 276         g_object_unref(gc);
 277 }
 278
 279 gboolean
 280 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 281         drawindicator(c);
 282         return TRUE;
 283 }
 284
 285 void
 286 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 287         WebKitDownloadStatus status;
 288
 289         status = webkit_download_get_status(c->download);
 290         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 291                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 292         }
 293         update(c);
 294 }
 295
 296 gboolean
 297 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 298         const char *filename;
 299         char *uri, *html;
 300
 301         stop(c, NULL);
 302         c->download = o;
 303         filename = webkit_download_get_suggested_filename(o);
 304         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 305         webkit_download_set_destination_uri(c->download, uri);
 306         c->progress = 0;
 307         g_free(uri);
 308         html = g_strdup_printf("Download <b>%s</b>...", filename);
 309         webkit_web_view_load_html_string(c->view, html,
 310                         webkit_download_get_uri(c->download));
 311         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 312         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 313         webkit_download_start(c->download);
 314
 315         c->title = copystr(&c->title, filename);
 316         update(c);
 317         g_free(html);
 318         return TRUE;
 319 }
 320
 321 char *
 322 geturi(Client *c) {
 323         char *uri;
 324
 325         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 326                 uri = copystr(NULL, "about:blank");
 327         return uri;
 328 }
 329
 330 void
 331 hidesearch(Client *c, const Arg *arg) {
 332         gtk_widget_hide(c->searchbar);
 333         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 334 }
 335
 336 void
 337 hideuri(Client *c, const Arg *arg) {
 338         gtk_widget_hide(c->uribar);
 339         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 340 }
 341
 342 void
 343 itemclick(GtkMenuItem *mi, Client *c) {
 344         int i;
 345         const char *label;
 346
 347         label = gtk_menu_item_get_label(mi);
 348         for(i = 0; i < LENGTH(items); i++)
 349                 if(!strcmp(items[i].label, label))
 350                         items[i].func(c, &(items[i].arg));
 351 }
 352
 353 gboolean
 354 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 355         guint i, focus;
 356         gboolean processed = FALSE;
 357
 358         if(ev->type != GDK_KEY_PRESS)
 359                 return FALSE;
 360         if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
 361                 focus = SearchBar;
 362         else if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 363                 focus = UriBar;
 364         else
 365                 focus = Browser;
 366         updatewinid(c);
 367         for(i = 0; i < LENGTH(keys); i++) {
 368                 if(focus & keys[i].focus
 369                                 && gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 370                                 && CLEANMASK(ev->state) == keys[i].mod
 371                                 && keys[i].func) {
 372                         keys[i].func(c, &(keys[i].arg));
 373                         processed = TRUE;
 374                 }
 375         }
 376         return processed;
 377 }
 378
 379 void
 380 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 381         if(l)
 382                 c->linkhover = copystr(&c->linkhover, l);
 383         else if(c->linkhover) {
 384                 free(c->linkhover);
 385                 c->linkhover = NULL;
 386         }
 387         update(c);
 388 }
 389
 390 void
 391 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 392         char *uri;
 393
 394         ignore_once = TRUE;
 395         uri = geturi(c);
 396         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), uriprop,
 397                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 398                         strlen(uri) + 1);
 399 }
 400
 401 void
 402 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 403         c->progress = 0;
 404         update(c);
 405 }
 406
 407 void
 408 loaduri(Client *c, const Arg *arg) {
 409         char *u;
 410         const char *uri = (char *)arg->v;
 411
 412         if(!uri)
 413                 uri = autouri(c);
 414         if(!uri)
 415                 return;
 416         u = g_strrstr(uri, "://") ? g_strdup(uri)
 417                 : g_strdup_printf("http://%s", uri);
 418         webkit_web_view_load_uri(c->view, u);
 419         c->progress = 0;
 420         c->title = copystr(&c->title, u);
 421         g_free(u);
 422         update(c);
 423 }
 424
 425 void
 426 navigate(Client *c, const Arg *arg) {
 427         gint steps = *(gint *)arg;
 428         webkit_web_view_go_back_or_forward(c->view, steps);
 429 }
 430
 431 Client *
 432 newclient(void) {
 433         int i;
 434         Client *c;
 435         WebKitWebSettings *settings;
 436         char *uri;
 437
 438         if(!(c = calloc(1, sizeof(Client))))
 439                 die("Cannot malloc!\n");
 440         /* Window */
 441         if(embed) {
 442                 c->win = gtk_plug_new(embed);
 443         }
 444         else {
 445                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 446                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 447         }
 448         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 449         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 450         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 451
 452         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 453                 die("Cannot malloc!\n");
 454
 455         /* contextmenu */
 456         for(i = 0; i < LENGTH(items); i++) {
 457                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 458                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 459                                 G_CALLBACK(itemclick), c);
 460         }
 461
 462         /* VBox */
 463         c->vbox = gtk_vbox_new(FALSE, 0);
 464
 465         /* scrolled window */
 466         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 467         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 468                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 469
 470         /* webview */
 471         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 472         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 473         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 474         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 475         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 476         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 477         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 478         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 479         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 480         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 481         g_signal_connect(G_OBJECT(c->view), "focus-in-event", G_CALLBACK(focusview), c);
 482         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 483
 484         /* uribar */
 485         c->uribar = gtk_entry_new();
 486         gtk_entry_set_has_frame(GTK_ENTRY(c->uribar), FALSE);
 487
 488         /* searchbar */
 489         c->searchbar = gtk_entry_new();
 490         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 491
 492         /* indicator */
 493         c->indicator = gtk_drawing_area_new();
 494         gtk_widget_set_size_request(c->indicator, 0, 2);
 495         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 496                         G_CALLBACK (exposeindicator), c);
 497
 498         /* Arranging */
 499         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 500         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 501         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 502         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 503         gtk_container_add(GTK_CONTAINER(c->vbox), c->uribar);
 504         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 505
 506         /* Setup */
 507         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->uribar, FALSE, FALSE, 0, GTK_PACK_START);
 508         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 509         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 510         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 511         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 512         gtk_widget_hide_all(c->searchbar);
 513         gtk_widget_hide_all(c->uribar);
 514         gtk_widget_show(c->vbox);
 515         gtk_widget_show(c->indicator);
 516         gtk_widget_show(c->scroll);
 517         gtk_widget_show(GTK_WIDGET(c->view));
 518         gtk_widget_show(c->win);
 519         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 520         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 521         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 522         settings = webkit_web_view_get_settings(c->view);
 523         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 524         uri = g_strconcat("file://", stylefile, NULL);
 525         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 526         g_free(uri);
 527
 528         c->download = NULL;
 529         c->title = NULL;
 530         c->next = clients;
 531         clients = c;
 532         if(showxid) {
 533                 gdk_display_sync(gtk_widget_get_display(c->win));
 534                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 535                 fflush(NULL);
 536         }
 537         return c;
 538 }
 539
 540 void
 541 newwindow(Client *c, const Arg *arg) {
 542         guint i = 0;
 543         const char *cmd[7], *uri;
 544         const Arg a = { .v = (void *)cmd };
 545         char tmp[64];
 546
 547         cmd[i++] = progname;
 548         if(embed) {
 549                 cmd[i++] = "-e";
 550                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 551                 cmd[i++] = tmp;
 552         }
 553         if(showxid) {
 554                 cmd[i++] = "-x";
 555         }
 556         cmd[i++] = "--";
 557         uri = arg->v ? (char *)arg->v : autouri(c);
 558         if(uri)
 559                 cmd[i++] = uri;
 560         cmd[i++] = NULL;
 561         spawn(NULL, &a);
 562 }
 563
 564 WebKitWebView *
 565 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 566         Client *n = newclient();
 567         return n->view;
 568 }
 569
 570 void
 571 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 572         Arg arg = { .v = text };
 573         if(text != NULL)
 574                 loaduri((Client *) d, &arg);
 575 }
 576
 577 GdkFilterReturn
 578 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 579         Client *c = (Client *)d;
 580         XPropertyEvent *ev;
 581         Atom adummy;
 582         gint idummy;
 583         unsigned long ldummy;
 584         unsigned char *buf = NULL;
 585         Arg arg;
 586
 587         if(((XEvent *)e)->type == PropertyNotify) {
 588                 ev = &((XEvent *)e)->xproperty;
 589                 if(ev->atom == uriprop && ev->state == PropertyNewValue) {
 590                         if(ignore_once)
 591                                ignore_once = FALSE;
 592                         else {
 593                                 XGetWindowProperty(dpy, ev->window, uriprop, 0L, BUFSIZ, False, XA_STRING,
 594                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 595                                 arg.v = buf;
 596                                 loaduri(c, &arg);
 597                                 XFree(buf);
 598                         }
 599                         return GDK_FILTER_REMOVE;
 600                 }
 601         }
 602         return GDK_FILTER_CONTINUE;
 603 }
 604
 605 void
 606 print(Client *c, const Arg *arg) {
 607         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 608 }
 609
 610 void
 611 progresschange(WebKitWebView *v, gint p, Client *c) {
 612         c->progress = p;
 613         update(c);
 614 }
 615
 616 void
 617 reload(Client *c, const Arg *arg) {
 618         gboolean nocache = *(gboolean *)arg;
 619         if(nocache)
 620                  webkit_web_view_reload_bypass_cache(c->view);
 621         else
 622                  webkit_web_view_reload(c->view);
 623 }
 624
 625 void
 626 scroll(Client *c, const Arg *arg) {
 627         gdouble v;
 628         GtkAdjustment *a;
 629
 630         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 631         v = gtk_adjustment_get_value(a);
 632         v += gtk_adjustment_get_step_increment(a) * arg->i;
 633         v = MAX(v, 0.0);
 634         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 635         gtk_adjustment_set_value(a, v);
 636 }
 637
 638 void
 639 request(SoupSession *s, SoupMessage *m, gpointer p) {
 640         SoupCookieJar *cookies;
 641         SoupMessageHeaders *h;
 642         char *cookiestr;
 643
 644         soup_message_add_header_handler(m, "got-headers", "Set-Cookie",
 645                         G_CALLBACK(setcookie), NULL);
 646         h = m->request_headers;
 647         cookies = soup_cookie_jar_text_new(cookiefile, TRUE);
 648         cookiestr = soup_cookie_jar_get_cookies(cookies, soup_message_get_uri(m), FALSE);
 649         if(cookiestr)
 650                 soup_message_headers_append(h, "Cookie", cookiestr);
 651         g_object_unref(cookies);
 652 }
 653
 654 void
 655 setcookie(SoupMessage *m, gpointer p) {
 656         SoupCookieJar *cookies;
 657         SoupCookie *c;
 658         SoupDate *e;
 659         GSList *l;
 660
 661         cookies = soup_cookie_jar_text_new(cookiefile, FALSE);
 662         for (l = soup_cookies_from_response(m); l; l = l->next){
 663                 c = (SoupCookie *)l->data;
 664                 if(c && c->expires == NULL) {
 665                         e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 666                         c = soup_cookie_copy(c);
 667                         soup_cookie_set_expires(c, e);
 668                 }
 669                 soup_cookie_jar_add_cookie(cookies, c);
 670         }
 671         g_slist_free(l);
 672         g_object_unref(cookies);
 673 }
 674 void
 675 sigchld(int unused) {
 676         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 677                 die("Can't install SIGCHLD handler");
 678         while(0 < waitpid(-1, NULL, WNOHANG));
 679 }
 680
 681 void
 682 setup(void) {
 683         SoupSession *s;
 684
 685         /* clean up any zombies immediately */
 686         sigchld(0);
 687         gtk_init(NULL, NULL);
 688         if (!g_thread_supported())
 689                 g_thread_init(NULL);
 690
 691         dpy = GDK_DISPLAY();
 692         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 693
 694         /* create dirs and files */
 695         cookiefile = buildpath(cookiefile);
 696         dldir = buildpath(dldir);
 697         scriptfile = buildpath(scriptfile);
 698         stylefile = buildpath(stylefile);
 699
 700         /* cookie persistance */
 701         s = webkit_get_default_session();
 702         g_signal_connect_after(s, "request-queued", G_CALLBACK(request), NULL);
 703 }
 704
 705 void
 706 showsearch(Client *c, const Arg *arg) {
 707         hideuri(c, NULL);
 708         gtk_widget_show(c->searchbar);
 709         gtk_widget_grab_focus(c->searchbar);
 710 }
 711
 712 void
 713 source(Client *c, const Arg *arg) {
 714         Arg a = { .b = FALSE };
 715         gboolean s;
 716
 717         s = webkit_web_view_get_view_source_mode(c->view);
 718         webkit_web_view_set_view_source_mode(c->view, !s);
 719         reload(c, &a);
 720 }
 721
 722 void
 723 searchtext(Client *c, const Arg *arg) {
 724         const char *text;
 725         gboolean forward = *(gboolean *)arg;
 726         text = gtk_entry_get_text(GTK_ENTRY(c->searchbar));
 727         webkit_web_view_search_text(c->view, text, FALSE, forward, TRUE);
 728         webkit_web_view_mark_text_matches(c->view, text, FALSE, 0);
 729 }
 730
 731 void
 732 showuri(Client *c, const Arg *arg) {
 733         char *uri;
 734
 735         hidesearch(c, NULL);
 736         uri = geturi(c);
 737         gtk_entry_set_text(GTK_ENTRY(c->uribar), uri);
 738         gtk_widget_show(c->uribar);
 739         gtk_widget_grab_focus(c->uribar);
 740 }
 741
 742 void
 743 stop(Client *c, const Arg *arg) {
 744         if(c->download)
 745                 webkit_download_cancel(c->download);
 746         else
 747                 webkit_web_view_stop_loading(c->view);
 748         c->download = NULL;
 749 }
 750
 751 void
 752 spawn(Client *c, const Arg *arg) {
 753         if(fork() == 0) {
 754                 if(dpy)
 755                         close(ConnectionNumber(dpy));
 756                 setsid();
 757                 execvp(((char **)arg->v)[0], (char **)arg->v);
 758                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 759                 perror(" failed");
 760                 exit(0);
 761         }
 762 }
 763
 764 void
 765 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 766         c->title = copystr(&c->title, t);
 767         update(c);
 768 }
 769
 770 gboolean
 771 focusview(GtkWidget *w, GdkEventFocus *e, Client *c) {
 772         hidesearch(c, NULL);
 773         hideuri(c, NULL);
 774         return FALSE;
 775 }
 776
 777 void
 778 usage(void) {
 779         fputs("surf - simple browser\n", stderr);
 780         die("usage: surf [-e Window] [-x] [uri]\n");
 781 }
 782
 783 void
 784 update(Client *c) {
 785         char *t;
 786
 787         if(c->progress != 100)
 788                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 789         else if(c->linkhover)
 790                 t = g_strdup(c->linkhover);
 791         else
 792                 t = g_strdup(c->title);
 793         drawindicator(c);
 794         gtk_window_set_title(GTK_WINDOW(c->win), t);
 795         g_free(t);
 796
 797 }
 798
 799 void
 800 updatewinid(Client *c) {
 801         snprintf(winid, LENGTH(winid), "%u",
 802                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 803 }
 804
 805 void
 806 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 807         JSStringRef jsscript;
 808         char *script;
 809         JSValueRef exception = NULL;
 810         GError *error;
 811
 812         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 813                 jsscript = JSStringCreateWithUTF8CString(script);
 814                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 815         }
 816 }
 817
 818 void
 819 zoom(Client *c, const Arg *arg) {
 820         if(arg->i < 0)          /* zoom out */
 821                 webkit_web_view_zoom_out(c->view);
 822         else if(arg->i > 0)     /* zoom in */
 823                 webkit_web_view_zoom_in(c->view);
 824         else                    /* reset */
 825                 webkit_web_view_set_zoom_level(c->view, 1.0);
 826 }
 827
 828 int main(int argc, char *argv[]) {
 829         int i;
 830         Arg arg;
 831
 832         progname = argv[0];
 833         /* command line args */
 834         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 835                 if(!strcmp(argv[i], "-x"))
 836                         showxid = TRUE;
 837                 else if(!strcmp(argv[i], "-e")) {
 838                         if(++i < argc)
 839                                 embed = atoi(argv[i]);
 840                         else
 841                                 usage();
 842                 }
 843                 else if(!strcmp(argv[i], "--")) {
 844                         i++;
 845                         break;
 846                 }
 847                 else if(!strcmp(argv[i], "-v"))
 848                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 849                 else
 850                         usage();
 851         }
 852         if(i < argc)
 853                 arg.v = argv[i];
 854         setup();
 855         newclient();
 856         if(arg.v) {
 857                 loaduri(clients, &arg);
 858         }
 859         gtk_main();
 860         cleanup();
 861         return EXIT_SUCCESS;
 862 }