surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <signal.h>
   6 #include <X11/X.h>
   7 #include <X11/Xatom.h>
   8 #include <gtk/gtk.h>
   9 #include <gdk/gdkx.h>
  10 #include <gdk/gdk.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <unistd.h>
  16 #include <stdlib.h>
  17 #include <stdio.h>
  18 #include <webkit/webkit.h>
  19 #include <glib/gstdio.h>
  20 #include <JavaScriptCore/JavaScript.h>
  21
  22 #define LENGTH(x)               (sizeof x / sizeof x[0])
  23 #define CLEANMASK(mask)         (mask & ~(GDK_MOD2_MASK))
  24
  25 typedef union Arg Arg;
  26 union Arg {
  27         const gboolean b;
  28         const gint i;
  29         const void *v;
  30 };
  31
  32 typedef struct Client {
  33         GtkWidget *win, *scroll, *vbox, *uribar, *searchbar, *indicator;
  34         GtkWidget **items;
  35         WebKitWebView *view;
  36         WebKitDownload *download;
  37         char *title, *linkhover;
  38         gint progress;
  39         struct Client *next;
  40 } Client;
  41
  42 typedef struct {
  43         char *label;
  44         void (*func)(Client *c, const Arg *arg);
  45         const Arg arg;
  46 } Item;
  47
  48 typedef enum {
  49         Browser = 0x0001,
  50         SearchBar = 0x0010,
  51         UriBar = 0x0100,
  52         Any = ~0,
  53 } KeyFocus;
  54
  55 typedef struct {
  56         guint mod;
  57         guint keyval;
  58         void (*func)(Client *c, const Arg *arg);
  59         const Arg arg;
  60         KeyFocus focus;
  61 } Key;
  62
  63 static Display *dpy;
  64 static Atom uriprop;
  65 static SoupCookieJar *cookiejar;
  66 static SoupSession *session;
  67 static Client *clients = NULL;
  68 static GdkNativeWindow embed = 0;
  69 static gboolean showxid = FALSE;
  70 static gboolean ignore_once = FALSE;
  71 static char winid[64];
  72 static char *progname;
  73
  74 static const char *autouri(Client *c);
  75 static char *buildpath(const char *path);
  76 static void cleanup(void);
  77 static void clipboard(Client *c, const Arg *arg);
  78 static void context(WebKitWebView *v, GtkMenu *m, Client *c);
  79 static char *copystr(char **str, const char *src);
  80 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  81 static void destroyclient(Client *c);
  82 static void destroywin(GtkWidget* w, Client *c);
  83 static void die(char *str);
  84 static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
  85 static void drawindicator(Client *c);
  86 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  87 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  88 static char *geturi(Client *c);
  89 static void hidesearch(Client *c, const Arg *arg);
  90 static void hideuri(Client *c, const Arg *arg);
  91 static void itemclick(GtkMenuItem *mi, Client *c);
  92 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  93 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  94 static void loadcommit(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  95 static void loadstart(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  96 static void loaduri(Client *c, const Arg *arg);
  97 static void navigate(Client *c, const Arg *arg);
  98 static Client *newclient(void);
  99 static void newwindow(Client *c, const Arg *arg);
 100 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
 101 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 102 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 103 static void print(Client *c, const Arg *arg);
 104 static void progresschange(WebKitWebView *v, gint p, Client *c);
 105 static void reload(Client *c, const Arg *arg);
 106 static void sigchld(int unused);
 107 static void setup(void);
 108 static void spawn(Client *c, const Arg *arg);
 109 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 110 static void scroll(Client *c, const Arg *arg);
 111 static void searchtext(Client *c, const Arg *arg);
 112 static void source(Client *c, const Arg *arg);
 113 static void showsearch(Client *c, const Arg *arg);
 114 static void showuri(Client *c, const Arg *arg);
 115 static void stop(Client *c, const Arg *arg);
 116 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 117 static gboolean focusview(GtkWidget *w, GdkEventFocus *e, Client *c);
 118 static void usage(void);
 119 static void update(Client *c);
 120 static void updatewinid(Client *c);
 121 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 122 static void zoom(Client *c, const Arg *arg);
 123
 124 /* configuration, allows nested code to access above variables */
 125 #include "config.h"
 126
 127 const char *
 128 autouri(Client *c) {
 129         if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 130                 return gtk_entry_get_text(GTK_ENTRY(c->uribar));
 131         else if(c->linkhover)
 132                 return c->linkhover;
 133         return NULL;
 134 }
 135
 136 char *
 137 buildpath(const char *path) {
 138         char *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), pasteuri, 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 void
 178 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 179         int i;
 180         GtkContainer *parent;
 181
 182         gtk_widget_hide_all(GTK_WIDGET(m));
 183         gtk_widget_show(GTK_WIDGET(m));
 184         for(i = 0; i < LENGTH(items); i++) {
 185                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 186                 if(parent)
 187                         gtk_container_remove(parent, c->items[i]);
 188                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 189                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 190                                 G_CALLBACK(itemclick), c);
 191                 gtk_widget_show(c->items[i]);
 192         }
 193 }
 194
 195 char *
 196 copystr(char **str, const char *src) {
 197         char *tmp;
 198         tmp = g_strdup(src);
 199
 200         if(str && *str) {
 201                 g_free(*str);
 202                 *str = tmp;
 203         }
 204         return tmp;
 205 }
 206
 207 void
 208 destroyclient(Client *c) {
 209         int i;
 210         Client *p;
 211
 212         gtk_widget_destroy(GTK_WIDGET(c->view));
 213         gtk_widget_destroy(c->scroll);
 214         gtk_widget_destroy(c->uribar);
 215         gtk_widget_destroy(c->searchbar);
 216         gtk_widget_destroy(c->vbox);
 217         gtk_widget_destroy(c->win);
 218         for(i = 0; i < LENGTH(items); i++)
 219                 gtk_widget_destroy(c->items[i]);
 220         free(c->items);
 221
 222         for(p = clients; p && p->next != c; p = p->next);
 223         if(p)
 224                 p->next = c->next;
 225         else
 226                 clients = c->next;
 227         free(c);
 228         if(clients == NULL)
 229                 gtk_main_quit();
 230 }
 231
 232 gboolean
 233 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 234         Arg arg;
 235         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 236                 webkit_web_policy_decision_ignore(p);
 237                 arg.v = (void *)webkit_network_request_get_uri(r);
 238                 newwindow(NULL, &arg);
 239                 return TRUE;
 240         }
 241         return FALSE;
 242 }
 243
 244 void
 245 destroywin(GtkWidget* w, Client *c) {
 246         destroyclient(c);
 247 }
 248
 249 void
 250 die(char *str) {
 251         fputs(str, stderr);
 252         exit(EXIT_FAILURE);
 253 }
 254
 255 void
 256 drawindicator(Client *c) {
 257         gint width;
 258         char *uri;
 259         GtkWidget *w;
 260         GdkGC *gc;
 261         GdkColor fg;
 262
 263         uri = geturi(c);
 264         w = c->indicator;
 265         width = c->progress * w->allocation.width / 100;
 266         gc = gdk_gc_new(w->window);
 267         gdk_color_parse(strstr(uri, "https://") == uri ?
 268                         progress_trust : progress, &fg);
 269         gdk_gc_set_rgb_fg_color(gc, &fg);
 270         gdk_draw_rectangle(w->window,
 271                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 272                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 273         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 274                         w->allocation.height);
 275         g_object_unref(gc);
 276 }
 277
 278 gboolean
 279 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 280         drawindicator(c);
 281         return TRUE;
 282 }
 283
 284 void
 285 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 286         WebKitDownloadStatus status;
 287
 288         status = webkit_download_get_status(c->download);
 289         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 290                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 291         }
 292         update(c);
 293 }
 294
 295 gboolean
 296 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 297         const char *filename;
 298         char *uri, *html;
 299
 300         stop(c, NULL);
 301         c->download = o;
 302         filename = webkit_download_get_suggested_filename(o);
 303         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 304         webkit_download_set_destination_uri(c->download, uri);
 305         c->progress = 0;
 306         g_free(uri);
 307         html = g_strdup_printf("Download <b>%s</b>...", filename);
 308         webkit_web_view_load_html_string(c->view, html,
 309                         webkit_download_get_uri(c->download));
 310         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 311         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 312         webkit_download_start(c->download);
 313
 314         c->title = copystr(&c->title, filename);
 315         update(c);
 316         g_free(html);
 317         return TRUE;
 318 }
 319
 320 char *
 321 geturi(Client *c) {
 322         char *uri;
 323
 324         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 325                 uri = copystr(NULL, "about:blank");
 326         return uri;
 327 }
 328
 329 void
 330 hidesearch(Client *c, const Arg *arg) {
 331         gtk_widget_hide(c->searchbar);
 332         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 333 }
 334
 335 void
 336 hideuri(Client *c, const Arg *arg) {
 337         gtk_widget_hide(c->uribar);
 338         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 339 }
 340
 341 void
 342 itemclick(GtkMenuItem *mi, Client *c) {
 343         int i;
 344         const char *label;
 345
 346         label = gtk_menu_item_get_label(mi);
 347         for(i = 0; i < LENGTH(items); i++)
 348                 if(!strcmp(items[i].label, label))
 349                         items[i].func(c, &(items[i].arg));
 350 }
 351
 352 gboolean
 353 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 354         guint i, focus;
 355         gboolean processed = FALSE;
 356
 357         if(ev->type != GDK_KEY_PRESS)
 358                 return FALSE;
 359         if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
 360                 focus = SearchBar;
 361         else if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 362                 focus = UriBar;
 363         else
 364                 focus = Browser;
 365         updatewinid(c);
 366         for(i = 0; i < LENGTH(keys); i++) {
 367                 if(focus & keys[i].focus
 368                                 && gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 369                                 && CLEANMASK(ev->state) == keys[i].mod
 370                                 && keys[i].func) {
 371                         keys[i].func(c, &(keys[i].arg));
 372                         processed = TRUE;
 373                 }
 374         }
 375         return processed;
 376 }
 377
 378 void
 379 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 380         if(l)
 381                 c->linkhover = copystr(&c->linkhover, l);
 382         else if(c->linkhover) {
 383                 free(c->linkhover);
 384                 c->linkhover = NULL;
 385         }
 386         update(c);
 387 }
 388
 389 void
 390 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 391         char *uri;
 392
 393         ignore_once = TRUE;
 394         uri = geturi(c);
 395         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), uriprop,
 396                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 397                         strlen(uri) + 1);
 398 }
 399
 400 void
 401 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 402         c->progress = 0;
 403         update(c);
 404 }
 405
 406 void
 407 loaduri(Client *c, const Arg *arg) {
 408         char *u;
 409         const char *uri = (char *)arg->v;
 410
 411         if(!uri)
 412                 uri = autouri(c);
 413         if(!uri)
 414                 return;
 415         u = g_strrstr(uri, "://") ? g_strdup(uri)
 416                 : g_strdup_printf("http://%s", uri);
 417         webkit_web_view_load_uri(c->view, u);
 418         c->progress = 0;
 419         c->title = copystr(&c->title, u);
 420         g_free(u);
 421         update(c);
 422 }
 423
 424 void
 425 navigate(Client *c, const Arg *arg) {
 426         gint steps = *(gint *)arg;
 427         webkit_web_view_go_back_or_forward(c->view, steps);
 428 }
 429
 430 Client *
 431 newclient(void) {
 432         int i;
 433         Client *c;
 434         WebKitWebSettings *settings;
 435         char *uri;
 436
 437         if(!(c = calloc(1, sizeof(Client))))
 438                 die("Cannot malloc!\n");
 439         /* Window */
 440         if(embed) {
 441                 c->win = gtk_plug_new(embed);
 442         }
 443         else {
 444                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 445                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 446         }
 447         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 448         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 449         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 450
 451         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 452                 die("Cannot malloc!\n");
 453
 454         /* contextmenu */
 455         for(i = 0; i < LENGTH(items); i++)
 456                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 457
 458
 459         /* VBox */
 460         c->vbox = gtk_vbox_new(FALSE, 0);
 461
 462         /* scrolled window */
 463         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 464         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 465                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 466
 467         /* webview */
 468         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 469         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 470         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 471         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 472         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 473         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 474         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 475         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 476         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 477         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 478         g_signal_connect(G_OBJECT(c->view), "focus-in-event", G_CALLBACK(focusview), c);
 479         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 480
 481         /* uribar */
 482         c->uribar = gtk_entry_new();
 483         gtk_entry_set_has_frame(GTK_ENTRY(c->uribar), FALSE);
 484
 485         /* searchbar */
 486         c->searchbar = gtk_entry_new();
 487         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 488
 489         /* indicator */
 490         c->indicator = gtk_drawing_area_new();
 491         gtk_widget_set_size_request(c->indicator, 0, 2);
 492         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 493                         G_CALLBACK (exposeindicator), c);
 494
 495         /* Arranging */
 496         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 497         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 498         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 499         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 500         gtk_container_add(GTK_CONTAINER(c->vbox), c->uribar);
 501         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 502
 503         /* Setup */
 504         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->uribar, FALSE, FALSE, 0, GTK_PACK_START);
 505         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 506         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 507         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 508         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 509         gtk_widget_hide_all(c->searchbar);
 510         gtk_widget_hide_all(c->uribar);
 511         gtk_widget_show(c->vbox);
 512         gtk_widget_show(c->indicator);
 513         gtk_widget_show(c->scroll);
 514         gtk_widget_show(GTK_WIDGET(c->view));
 515         gtk_widget_show(c->win);
 516         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 517         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 518         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 519         settings = webkit_web_view_get_settings(c->view);
 520         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 521         uri = g_strconcat("file://", stylefile, NULL);
 522         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 523         g_free(uri);
 524
 525         c->download = NULL;
 526         c->title = NULL;
 527         c->next = clients;
 528         clients = c;
 529         if(showxid) {
 530                 gdk_display_sync(gtk_widget_get_display(c->win));
 531                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 532                 fflush(NULL);
 533         }
 534         return c;
 535 }
 536
 537 void
 538 newwindow(Client *c, const Arg *arg) {
 539         guint i = 0;
 540         const char *cmd[7], *uri;
 541         const Arg a = { .v = (void *)cmd };
 542         char tmp[64];
 543
 544         cmd[i++] = progname;
 545         if(embed) {
 546                 cmd[i++] = "-e";
 547                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 548                 cmd[i++] = tmp;
 549         }
 550         if(showxid) {
 551                 cmd[i++] = "-x";
 552         }
 553         cmd[i++] = "--";
 554         uri = arg->v ? (char *)arg->v : autouri(c);
 555         if(uri)
 556                 cmd[i++] = uri;
 557         cmd[i++] = NULL;
 558         spawn(NULL, &a);
 559 }
 560
 561 WebKitWebView *
 562 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 563         Client *n = newclient();
 564         return n->view;
 565 }
 566
 567 void
 568 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 569         Arg arg = {.v = text };
 570         if(text != NULL)
 571                 loaduri((Client *) d, &arg);
 572 }
 573
 574 GdkFilterReturn
 575 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 576         Client *c = (Client *)d;
 577         XPropertyEvent *ev;
 578         Atom adummy;
 579         gint idummy;
 580         unsigned long ldummy;
 581         unsigned char *buf = NULL;
 582         Arg arg;
 583
 584         if(((XEvent *)e)->type == PropertyNotify) {
 585                 ev = &((XEvent *)e)->xproperty;
 586                 if(ev->atom == uriprop && ev->state == PropertyNewValue) {
 587                         if(ignore_once)
 588                                ignore_once = FALSE;
 589                         else {
 590                                 XGetWindowProperty(dpy, ev->window, uriprop, 0L, BUFSIZ, False, XA_STRING,
 591                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 592                                 arg.v = buf;
 593                                 loaduri(c, &arg);
 594                                 XFree(buf);
 595                         }
 596                         return GDK_FILTER_REMOVE;
 597                 }
 598         }
 599         return GDK_FILTER_CONTINUE;
 600 }
 601
 602 void
 603 print(Client *c, const Arg *arg) {
 604         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 605 }
 606
 607 void
 608 progresschange(WebKitWebView *v, gint p, Client *c) {
 609         c->progress = p;
 610         update(c);
 611 }
 612
 613 void
 614 reload(Client *c, const Arg *arg) {
 615         gboolean nocache = *(gboolean *)arg;
 616         if(nocache)
 617                  webkit_web_view_reload_bypass_cache(c->view);
 618         else
 619                  webkit_web_view_reload(c->view);
 620 }
 621
 622 void
 623 scroll(Client *c, const Arg *arg) {
 624         gdouble v;
 625         GtkAdjustment *a;
 626
 627         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 628         v = gtk_adjustment_get_value(a);
 629         v += gtk_adjustment_get_step_increment(a) * arg->i;
 630         v = MAX(v, 0.0);
 631         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 632         gtk_adjustment_set_value(a, v);
 633 }
 634
 635 void
 636 sigchld(int unused) {
 637         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 638                 die("Can't install SIGCHLD handler");
 639         while(0 < waitpid(-1, NULL, WNOHANG));
 640 }
 641
 642 void
 643 setup(void) {
 644         SoupSession *s;
 645
 646         /* clean up any zombies immediately */
 647         sigchld(0);
 648         gtk_init(NULL, NULL);
 649         if (!g_thread_supported())
 650                 g_thread_init(NULL);
 651
 652         dpy = GDK_DISPLAY();
 653         session = webkit_get_default_session();
 654         uriprop = XInternAtom(dpy, "_SURF_uri", False);
 655
 656         /* create dirs and files */
 657         cookiefile = buildpath(cookiefile);
 658         dldir = buildpath(dldir);
 659         scriptfile = buildpath(scriptfile);
 660         stylefile = buildpath(stylefile);
 661
 662         /* cookie persistance */
 663         s = webkit_get_default_session();
 664         cookiejar = soup_cookie_jar_text_new(cookiefile, FALSE);
 665         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 666 }
 667
 668 void
 669 showsearch(Client *c, const Arg *arg) {
 670         hideuri(c, NULL);
 671         gtk_widget_show(c->searchbar);
 672         gtk_widget_grab_focus(c->searchbar);
 673 }
 674
 675 void
 676 source(Client *c, const Arg *arg) {
 677         Arg a = { .b = FALSE };
 678         gboolean s;
 679
 680         s = webkit_web_view_get_view_source_mode(c->view);
 681         webkit_web_view_set_view_source_mode(c->view, !s);
 682         reload(c, &a);
 683 }
 684
 685 void
 686 searchtext(Client *c, const Arg *arg) {
 687         const char *text;
 688         gboolean forward = *(gboolean *)arg;
 689         text = gtk_entry_get_text(GTK_ENTRY(c->searchbar));
 690         webkit_web_view_search_text(c->view, text, FALSE, forward, TRUE);
 691         webkit_web_view_mark_text_matches(c->view, text, FALSE, 0);
 692 }
 693
 694 void
 695 showuri(Client *c, const Arg *arg) {
 696         char *uri;
 697
 698         hidesearch(c, NULL);
 699         uri = geturi(c);
 700         gtk_entry_set_text(GTK_ENTRY(c->uribar), uri);
 701         gtk_widget_show(c->uribar);
 702         gtk_widget_grab_focus(c->uribar);
 703 }
 704
 705 void
 706 stop(Client *c, const Arg *arg) {
 707         if(c->download)
 708                 webkit_download_cancel(c->download);
 709         else
 710                 webkit_web_view_stop_loading(c->view);
 711         c->download = NULL;
 712 }
 713
 714 void
 715 spawn(Client *c, const Arg *arg) {
 716         if(fork() == 0) {
 717                 if(dpy)
 718                         close(ConnectionNumber(dpy));
 719                 setsid();
 720                 execvp(((char **)arg->v)[0], (char **)arg->v);
 721                 fprintf(stderr, "tabbed: execvp %s", ((char **)arg->v)[0]);
 722                 perror(" failed");
 723                 exit(0);
 724         }
 725 }
 726
 727 void
 728 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 729         c->title = copystr(&c->title, t);
 730         update(c);
 731 }
 732
 733 gboolean
 734 focusview(GtkWidget *w, GdkEventFocus *e, Client *c) {
 735         hidesearch(c, NULL);
 736         hideuri(c, NULL);
 737         return FALSE;
 738 }
 739
 740 void
 741 usage(void) {
 742         fputs("surf - simple browser\n", stderr);
 743         die("usage: surf [-e Window] [-x] [uri]\n");
 744 }
 745
 746 void
 747 update(Client *c) {
 748         char *t;
 749
 750         if(c->progress != 100)
 751                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 752         else if(c->linkhover)
 753                 t = g_strdup(c->linkhover);
 754         else
 755                 t = g_strdup(c->title);
 756         drawindicator(c);
 757         gtk_window_set_title(GTK_WINDOW(c->win), t);
 758         g_free(t);
 759
 760 }
 761
 762 void
 763 updatewinid(Client *c) {
 764         snprintf(winid, LENGTH(winid), "%u",
 765                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 766 }
 767
 768 void
 769 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 770         JSStringRef jsscript;
 771         char *script;
 772         JSValueRef exception = NULL;
 773         GError *error;
 774
 775         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 776                 jsscript = JSStringCreateWithUTF8CString(script);
 777                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 778         }
 779 }
 780
 781 void
 782 zoom(Client *c, const Arg *arg) {
 783         if(arg->i < 0)          /* zoom out */
 784                 webkit_web_view_zoom_out(c->view);
 785         else if(arg->i > 0)     /* zoom in */
 786                 webkit_web_view_zoom_in(c->view);
 787         else                    /* reset */
 788                 webkit_web_view_set_zoom_level(c->view, 1.0);
 789 }
 790
 791 int main(int argc, char *argv[]) {
 792         int i;
 793         Arg arg;
 794
 795         progname = argv[0];
 796         /* command line args */
 797         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 798                 if(!strcmp(argv[i], "-x"))
 799                         showxid = TRUE;
 800                 else if(!strcmp(argv[i], "-e")) {
 801                         if(++i < argc)
 802                                 embed = atoi(argv[i]);
 803                         else
 804                                 usage();
 805                 }
 806                 else if(!strcmp(argv[i], "--")) {
 807                         i++;
 808                         break;
 809                 }
 810                 else if(!strcmp(argv[i], "-v"))
 811                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 812                 else
 813                         usage();
 814         }
 815         if(i < argc)
 816                 arg.v = argv[i];
 817         setup();
 818         newclient();
 819         if(arg.v) {
 820                 loaduri(clients, &arg);
 821         }
 822         gtk_main();
 823         cleanup();
 824         return EXIT_SUCCESS;
 825 }