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, *urlbar, *searchbar, *indicator;
  34         WebKitWebView *view;
  35         WebKitDownload *download;
  36         gchar *title;
  37         gint progress;
  38         struct Client *next;
  39 } Client;
  40
  41 typedef struct {
  42         char *label;
  43         void (*func)(Client *c, const Arg *arg);
  44         const Arg arg;
  45 } Context;
  46
  47 typedef struct Cookie {
  48         gchar *name;
  49         gchar *value;
  50         gchar *domain;
  51         gchar *path;
  52         struct Cookie *next;
  53 } Cookie;
  54
  55 typedef enum {
  56         Browser = 0x0001,
  57         SearchBar = 0x0010,
  58         UrlBar = 0x0100,
  59         Any = ~0,
  60 } KeyFocus;
  61
  62 typedef struct {
  63         guint mod;
  64         guint keyval;
  65         void (*func)(Client *c, const Arg *arg);
  66         const Arg arg;
  67         KeyFocus focus;
  68 } Key;
  69
  70 static Display *dpy;
  71 static Atom urlprop;
  72 static SoupCookieJar *cookiejar;
  73 static SoupSession *session;
  74 static Client *clients = NULL;
  75 /*static Cookie *cookies = NULL;*/
  76 static GdkNativeWindow embed = 0;
  77 static gboolean showxid = FALSE;
  78 static gboolean ignore_once = FALSE;
  79 static gchar winid[64];
  80 static gchar *progname;
  81
  82 static gchar *buildpath(const gchar *path);
  83 static void cleanup(void);
  84 static void clipboard(Client *c, const Arg *arg);
  85 static gchar *copystr(gchar **str, const gchar *src);
  86 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  87 static void destroyclient(Client *c);
  88 static void destroywin(GtkWidget* w, Client *c);
  89 static void die(gchar *str);
  90 static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
  91 static void drawindicator(Client *c);
  92 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  93 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  94 static gchar *geturi(Client *c);
  95 static void hidesearch(Client *c, const Arg *arg);
  96 static void hideurl(Client *c, const Arg *arg);
  97 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  98 static void linkhover(WebKitWebView *v, const gchar* t, const gchar* l, Client *c);
  99 static void loadcommit(WebKitWebView *v, WebKitWebFrame *f, Client *c);
 100 static void loadstart(WebKitWebView *v, WebKitWebFrame *f, Client *c);
 101 static void loaduri(Client *c, const Arg *arg);
 102 static void navigate(Client *c, const Arg *arg);
 103 static Client *newclient(void);
 104 static void newproc(const gchar *url);
 105 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
 106 static void pasteurl(GtkClipboard *clipboard, const gchar *text, gpointer d);
 107 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 108 static void print(Client *c, const Arg *arg);
 109 static void proccookies(SoupMessage *m, Client *c);
 110 static void progresschange(WebKitWebView *v, gint p, Client *c);
 111 static void request(SoupSession *s, SoupMessage *m, Client *c);
 112 static void reload(Client *c, const Arg *arg);
 113 static void rereadcookies(void);
 114 static void sigchld(int unused);
 115 static void setcookie(gchar *name, gchar *val, gchar *dom, gchar *path, long exp);
 116 static void setup(void);
 117 static void spawn(Client *c, const Arg *arg);
 118 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const gchar* title, Client *c);
 119 static void scroll(Client *c, const Arg *arg);
 120 static void searchtext(Client *c, const Arg *arg);
 121 static void source(Client *c, const Arg *arg);
 122 static void showsearch(Client *c, const Arg *arg);
 123 static void showurl(Client *c, const Arg *arg);
 124 static void stop(Client *c, const Arg *arg);
 125 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const gchar* title, Client *c);
 126 static gboolean focusview(GtkWidget *w, GdkEventFocus *e, Client *c);
 127 static void usage(void);
 128 static void update(Client *c);
 129 static void updatewinid(Client *c);
 130 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 131 static void zoom(Client *c, const Arg *arg);
 132
 133 /* configuration, allows nested code to access above variables */
 134 #include "config.h"
 135
 136 gchar *
 137 buildpath(const gchar *path) {
 138         gchar *apath, *p;
 139         FILE *f;
 140
 141         /* creating directory */
 142         if(path[0] == '/')
 143                 apath = g_strdup(path);
 144         else
 145                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 146         if((p = strrchr(apath, '/'))) {
 147                 *p = '\0';
 148                 g_mkdir_with_parents(apath, 0755);
 149                 *p = '/';
 150         }
 151         /* creating file (gives error when apath ends with "/") */
 152         if((f = g_fopen(apath, "a")))
 153                 fclose(f);
 154         return apath;
 155 }
 156
 157 void
 158 cleanup(void) {
 159         while(clients)
 160                 destroyclient(clients);
 161         g_free(cookiefile);
 162         g_free(dldir);
 163         g_free(scriptfile);
 164         g_free(stylefile);
 165 }
 166
 167 void
 168 clipboard(Client *c, const Arg *arg) {
 169         gboolean paste = *(gboolean *)arg;
 170
 171         if(paste)
 172                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteurl, c);
 173         else
 174                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
 175 }
 176
 177 gchar *
 178 copystr(gchar **str, const gchar *src) {
 179         gchar *tmp;
 180         tmp = g_strdup(src);
 181
 182         if(str && *str) {
 183                 g_free(*str);
 184                 *str = tmp;
 185         }
 186         return tmp;
 187 }
 188
 189 void
 190 destroyclient(Client *c) {
 191         Client *p;
 192
 193         gtk_widget_destroy(GTK_WIDGET(c->view));
 194         gtk_widget_destroy(c->scroll);
 195         gtk_widget_destroy(c->urlbar);
 196         gtk_widget_destroy(c->searchbar);
 197         gtk_widget_destroy(c->vbox);
 198         gtk_widget_destroy(c->win);
 199         for(p = clients; p && p->next != c; p = p->next);
 200         if(p)
 201                 p->next = c->next;
 202         else
 203                 clients = c->next;
 204         free(c);
 205         if(clients == NULL)
 206                 gtk_main_quit();
 207 }
 208
 209 gboolean
 210 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 211         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 212                 webkit_web_policy_decision_ignore(p);
 213                 newproc(webkit_network_request_get_uri(r));
 214                 return TRUE;
 215         }
 216         return FALSE;
 217 }
 218
 219 void
 220 destroywin(GtkWidget* w, Client *c) {
 221         destroyclient(c);
 222 }
 223
 224 void
 225 die(gchar *str) {
 226         fputs(str, stderr);
 227         exit(EXIT_FAILURE);
 228 }
 229
 230 void
 231 drawindicator(Client *c) {
 232         gint width;
 233         gchar *uri;
 234         GtkWidget *w;
 235         GdkGC *gc;
 236         GdkColor fg;
 237
 238         uri = geturi(c);
 239         w = c->indicator;
 240         width = c->progress * w->allocation.width / 100;
 241         gc = gdk_gc_new(w->window);
 242         gdk_color_parse(strstr(uri, "https://") == uri ?
 243                         progress_trust : progress, &fg);
 244         gdk_gc_set_rgb_fg_color(gc, &fg);
 245         gdk_draw_rectangle(w->window,
 246                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 247                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 248         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 249                         w->allocation.height);
 250         g_object_unref(gc);
 251 }
 252
 253 gboolean
 254 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 255         drawindicator(c);
 256         return TRUE;
 257 }
 258
 259 void
 260 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 261         WebKitDownloadStatus status;
 262
 263         status = webkit_download_get_status(c->download);
 264         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 265                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 266         }
 267         update(c);
 268 }
 269
 270 gboolean
 271 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 272         const gchar *filename;
 273         gchar *uri, *html;
 274
 275         stop(c, NULL);
 276         c->download = o;
 277         filename = webkit_download_get_suggested_filename(o);
 278         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 279         webkit_download_set_destination_uri(c->download, uri);
 280         c->progress = 0;
 281         g_free(uri);
 282         html = g_strdup_printf("Download <b>%s</b>...", filename);
 283         webkit_web_view_load_html_string(c->view, html,
 284                         webkit_download_get_uri(c->download));
 285         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 286         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 287         webkit_download_start(c->download);
 288
 289         c->title = copystr(&c->title, filename);
 290         update(c);
 291         g_free(html);
 292         return TRUE;
 293 }
 294
 295 gchar *
 296 geturi(Client *c) {
 297         gchar *uri;
 298
 299         if(!(uri = (gchar *)webkit_web_view_get_uri(c->view)))
 300                 uri = copystr(NULL, "about:blank");
 301         return uri;
 302 }
 303
 304 void
 305 hidesearch(Client *c, const Arg *arg) {
 306         gtk_widget_hide(c->searchbar);
 307         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 308 }
 309
 310 void
 311 hideurl(Client *c, const Arg *arg) {
 312         gtk_widget_hide(c->urlbar);
 313         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 314 }
 315
 316 gboolean
 317 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 318         guint i, focus;
 319         gboolean processed = FALSE;
 320
 321         if(ev->type != GDK_KEY_PRESS)
 322                 return FALSE;
 323         if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
 324                 focus = SearchBar;
 325         else if(GTK_WIDGET_HAS_FOCUS(c->urlbar))
 326                 focus = UrlBar;
 327         else
 328                 focus = Browser;
 329         updatewinid(c);
 330         for(i = 0; i < LENGTH(keys); i++) {
 331                 if(focus & keys[i].focus
 332                                 && gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 333                                 && CLEANMASK(ev->state) == keys[i].mod
 334                                 && keys[i].func) {
 335                         keys[i].func(c, &(keys[i].arg));
 336                         processed = TRUE;
 337                 }
 338         }
 339         return processed;
 340 }
 341
 342 void
 343 linkhover(WebKitWebView *v, const gchar* t, const gchar* l, Client *c) {
 344         if(l)
 345                 gtk_window_set_title(GTK_WINDOW(c->win), l);
 346         else
 347                 update(c);
 348 }
 349
 350 void
 351 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 352         gchar *uri;
 353
 354         ignore_once = TRUE;
 355         uri = geturi(c);
 356         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), urlprop,
 357                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 358                         strlen(uri) + 1);
 359 }
 360
 361 void
 362 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 363         c->progress = 0;
 364         update(c);
 365 }
 366
 367 void
 368 loaduri(Client *c, const Arg *arg) {
 369         gchar *u;
 370         const gchar *uri = (gchar *)arg->v;
 371         if(!uri)
 372                 uri = gtk_entry_get_text(GTK_ENTRY(c->urlbar));
 373         u = g_strrstr(uri, "://") ? g_strdup(uri)
 374                 : g_strdup_printf("http://%s", uri);
 375         webkit_web_view_load_uri(c->view, u);
 376         c->progress = 0;
 377         c->title = copystr(&c->title, u);
 378         g_free(u);
 379         update(c);
 380 }
 381
 382 void
 383 navigate(Client *c, const Arg *arg) {
 384         gint steps = *(gint *)arg;
 385         webkit_web_view_go_back_or_forward(c->view, steps);
 386 }
 387
 388 Client *
 389 newclient(void) {
 390         Client *c;
 391         WebKitWebSettings *settings;
 392         gchar *uri;
 393
 394         if(!(c = calloc(1, sizeof(Client))))
 395                 die("Cannot malloc!\n");
 396         /* Window */
 397         if(embed) {
 398                 c->win = gtk_plug_new(embed);
 399         }
 400         else {
 401                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 402                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 403         }
 404         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 405         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 406         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 407
 408         /* VBox */
 409         c->vbox = gtk_vbox_new(FALSE, 0);
 410
 411         /* scrolled window */
 412         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 413         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 414                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 415
 416         /* webview */
 417         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 418         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 419         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 420         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 421         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 422         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 423         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 424         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 425         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 426         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 427         g_signal_connect_after(session, "request-started", G_CALLBACK(request), c);
 428         g_signal_connect(G_OBJECT(c->view), "focus-in-event", G_CALLBACK(focusview), c);
 429
 430         /* urlbar */
 431         c->urlbar = gtk_entry_new();
 432         gtk_entry_set_has_frame(GTK_ENTRY(c->urlbar), FALSE);
 433
 434         /* searchbar */
 435         c->searchbar = gtk_entry_new();
 436         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 437
 438         /* indicator */
 439         c->indicator = gtk_drawing_area_new();
 440         gtk_widget_set_size_request(c->indicator, 0, 2);
 441         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 442                         G_CALLBACK (exposeindicator), c);
 443
 444         /* Arranging */
 445         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 446         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 447         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 448         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 449         gtk_container_add(GTK_CONTAINER(c->vbox), c->urlbar);
 450         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 451
 452         /* Setup */
 453         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->urlbar, FALSE, FALSE, 0, GTK_PACK_START);
 454         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 455         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 456         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 457         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 458         gtk_widget_hide_all(c->searchbar);
 459         gtk_widget_hide_all(c->urlbar);
 460         gtk_widget_show(c->vbox);
 461         gtk_widget_show(c->indicator);
 462         gtk_widget_show(c->scroll);
 463         gtk_widget_show(GTK_WIDGET(c->view));
 464         gtk_widget_show(c->win);
 465         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 466         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 467         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 468         settings = webkit_web_view_get_settings(c->view);
 469         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 470         uri = g_strconcat("file://", stylefile, NULL);
 471         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 472         g_free(uri);
 473
 474         c->download = NULL;
 475         c->title = NULL;
 476         c->next = clients;
 477         clients = c;
 478         if(showxid) {
 479                 gdk_display_sync(gtk_widget_get_display(c->win));
 480                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 481                 fflush(NULL);
 482         }
 483         return c;
 484 }
 485
 486 void
 487 newproc(const gchar *url) {
 488         guint i = 0, urlindex;
 489         const gchar *cmd[7];
 490         const Arg arg = { .v = (void *)cmd };
 491         gchar tmp[64];
 492
 493         cmd[i++] = progname;
 494         if(embed) {
 495                 cmd[i++] = "-e";
 496                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 497                 cmd[i++] = tmp;
 498         }
 499         if(showxid) {
 500                 cmd[i++] = "-x";
 501         }
 502         cmd[i++] = "--";
 503         urlindex = i;
 504         if(url)
 505                 cmd[i++] = url;
 506         cmd[i++] = NULL;
 507         spawn(NULL, &arg);
 508 }
 509
 510 WebKitWebView *
 511 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 512         Client *n = newclient();
 513         return n->view;
 514 }
 515
 516 void
 517 pasteurl(GtkClipboard *clipboard, const gchar *text, gpointer d) {
 518         Arg arg = {.v = text };
 519         if(text != NULL)
 520                 loaduri((Client *) d, &arg);
 521 }
 522
 523 GdkFilterReturn
 524 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 525         Client *c = (Client *)d;
 526         XPropertyEvent *ev;
 527         Atom adummy;
 528         gint idummy;
 529         unsigned long ldummy;
 530         unsigned char *buf = NULL;
 531         Arg arg;
 532
 533         if(((XEvent *)e)->type == PropertyNotify) {
 534                 ev = &((XEvent *)e)->xproperty;
 535                 if(ev->atom == urlprop && ev->state == PropertyNewValue) {
 536                         if(ignore_once)
 537                                ignore_once = FALSE;
 538                         else {
 539                                 XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
 540                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 541                                 arg.v = buf;
 542                                 loaduri(c, &arg);
 543                                 XFree(buf);
 544                         }
 545                         return GDK_FILTER_REMOVE;
 546                 }
 547         }
 548         return GDK_FILTER_CONTINUE;
 549 }
 550
 551 void
 552 print(Client *c, const Arg *arg) {
 553         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 554 }
 555
 556 void
 557 proccookies(SoupMessage *m, Client *c) {
 558         GSList *l;
 559         SoupCookie *co;
 560         long t;
 561
 562         rereadcookies();
 563         for (l = soup_cookies_from_response(m); l; l = l->next){
 564                 co = (SoupCookie *)l->data;
 565                 t = co->expires ?  soup_date_to_time_t(co->expires) : 0;
 566                 setcookie(co->name, co->value, co->domain, co->value, t);
 567         }
 568         g_slist_free(l);
 569 }
 570
 571 void
 572 progresschange(WebKitWebView *v, gint p, Client *c) {
 573         c->progress = p;
 574         update(c);
 575 }
 576
 577 void
 578 request(SoupSession *s, SoupMessage *m, Client *c) {
 579         soup_message_add_header_handler(m, "got-headers", "Set-Cookie",
 580                         G_CALLBACK(proccookies), c);
 581 }
 582
 583 void
 584 reload(Client *c, const Arg *arg) {
 585         gboolean nocache = *(gboolean *)arg;
 586         if(nocache)
 587                  webkit_web_view_reload_bypass_cache(c->view);
 588         else
 589                  webkit_web_view_reload(c->view);
 590 }
 591
 592 void
 593 rereadcookies(void) {
 594
 595 }
 596
 597 void
 598 scroll(Client *c, const Arg *arg) {
 599         gdouble v;
 600         GtkAdjustment *a;
 601
 602         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 603         v = gtk_adjustment_get_value(a);
 604         v += gtk_adjustment_get_step_increment(a) * arg->i;
 605         v = MAX(v, 0.0);
 606         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 607         gtk_adjustment_set_value(a, v);
 608 }
 609
 610 void
 611 sigchld(int unused) {
 612         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 613                 die("Can't install SIGCHLD handler");
 614         while(0 < waitpid(-1, NULL, WNOHANG));
 615 }
 616
 617 void
 618 setcookie(gchar *name, gchar *val, gchar *dom, gchar *path, long exp) {
 619
 620 }
 621
 622 void
 623 setup(void) {
 624         SoupSession *s;
 625
 626         /* clean up any zombies immediately */
 627         sigchld(0);
 628         gtk_init(NULL, NULL);
 629         if (!g_thread_supported())
 630                 g_thread_init(NULL);
 631
 632         dpy = GDK_DISPLAY();
 633         session = webkit_get_default_session();
 634         urlprop = XInternAtom(dpy, "_SURF_URL", False);
 635
 636         /* create dirs and files */
 637         cookiefile = buildpath(cookiefile);
 638         dldir = buildpath(dldir);
 639         scriptfile = buildpath(scriptfile);
 640         stylefile = buildpath(stylefile);
 641
 642         /* cookie persistance */
 643         s = webkit_get_default_session();
 644         cookiejar = soup_cookie_jar_text_new(cookiefile, FALSE);
 645         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 646 }
 647
 648 void
 649 showsearch(Client *c, const Arg *arg) {
 650         hideurl(c, NULL);
 651         gtk_widget_show(c->searchbar);
 652         gtk_widget_grab_focus(c->searchbar);
 653 }
 654
 655 void
 656 source(Client *c, const Arg *arg) {
 657         Arg a = { .b = FALSE };
 658         gboolean s;
 659
 660         s = webkit_web_view_get_view_source_mode(c->view);
 661         webkit_web_view_set_view_source_mode(c->view, !s);
 662         reload(c, &a);
 663 }
 664
 665 void
 666 searchtext(Client *c, const Arg *arg) {
 667         const gchar *text;
 668         gboolean forward = *(gboolean *)arg;
 669         text = gtk_entry_get_text(GTK_ENTRY(c->searchbar));
 670         webkit_web_view_search_text(c->view, text, FALSE, forward, TRUE);
 671         webkit_web_view_mark_text_matches(c->view, text, FALSE, 0);
 672 }
 673
 674 void
 675 showurl(Client *c, const Arg *arg) {
 676         gchar *uri;
 677
 678         hidesearch(c, NULL);
 679         uri = geturi(c);
 680         gtk_entry_set_text(GTK_ENTRY(c->urlbar), uri);
 681         gtk_widget_show(c->urlbar);
 682         gtk_widget_grab_focus(c->urlbar);
 683 }
 684
 685 void
 686 stop(Client *c, const Arg *arg) {
 687         if(c->download)
 688                 webkit_download_cancel(c->download);
 689         else
 690                 webkit_web_view_stop_loading(c->view);
 691         c->download = NULL;
 692 }
 693
 694 void
 695 spawn(Client *c, const Arg *arg) {
 696         if(fork() == 0) {
 697                 if(dpy)
 698                         close(ConnectionNumber(dpy));
 699                 setsid();
 700                 execvp(((gchar **)arg->v)[0], (gchar **)arg->v);
 701                 fprintf(stderr, "tabbed: execvp %s", ((gchar **)arg->v)[0]);
 702                 perror(" failed");
 703                 exit(0);
 704         }
 705 }
 706
 707 void
 708 titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, Client *c) {
 709         c->title = copystr(&c->title, t);
 710         update(c);
 711 }
 712
 713 gboolean
 714 focusview(GtkWidget *w, GdkEventFocus *e, Client *c) {
 715         hidesearch(c, NULL);
 716         hideurl(c, NULL);
 717         return FALSE;
 718 }
 719
 720 void
 721 usage(void) {
 722         fputs("surf - simple browser\n", stderr);
 723         die("usage: surf [-e Window] [-x] [uri]\n");
 724 }
 725
 726 void
 727 update(Client *c) {
 728         gchar *t;
 729
 730         if(c->progress == 100)
 731                 t = g_strdup(c->title);
 732         else
 733                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 734         drawindicator(c);
 735         gtk_window_set_title(GTK_WINDOW(c->win), t);
 736         g_free(t);
 737
 738 }
 739
 740 void
 741 updatewinid(Client *c) {
 742         snprintf(winid, LENGTH(winid), "%u",
 743                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 744 }
 745
 746 void
 747 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 748         JSStringRef jsscript;
 749         gchar *script;
 750         JSValueRef exception = NULL;
 751         GError *error;
 752
 753         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 754                 jsscript = JSStringCreateWithUTF8CString(script);
 755                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 756         }
 757 }
 758
 759 void
 760 zoom(Client *c, const Arg *arg) {
 761         if(arg->i < 0)          /* zoom out */
 762                 webkit_web_view_zoom_out(c->view);
 763         else if(arg->i > 0)     /* zoom in */
 764                 webkit_web_view_zoom_in(c->view);
 765         else                    /* reset */
 766                 webkit_web_view_set_zoom_level(c->view, 1.0);
 767 }
 768
 769 int main(int argc, char *argv[]) {
 770         int i;
 771         Arg arg;
 772
 773         progname = argv[0];
 774         /* command line args */
 775         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 776                 if(!strcmp(argv[i], "-x"))
 777                         showxid = TRUE;
 778                 else if(!strcmp(argv[i], "-e")) {
 779                         if(++i < argc)
 780                                 embed = atoi(argv[i]);
 781                         else
 782                                 usage();
 783                 }
 784                 else if(!strcmp(argv[i], "--")) {
 785                         i++;
 786                         break;
 787                 }
 788                 else if(!strcmp(argv[i], "-v"))
 789                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 790                 else
 791                         usage();
 792         }
 793         if(i < argc)
 794                 arg.v = argv[i];
 795         setup();
 796         newclient();
 797         if(arg.v) {
 798                 loaduri(clients, &arg);
 799         }
 800         gtk_main();
 801         cleanup();
 802         return EXIT_SUCCESS;
 803 }