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 resize(GtkWidget *w, GtkAllocation *a, Client *c);
 110 static void sigchld(int unused);
 111 static void setup(void);
 112 static void spawn(Client *c, const Arg *arg);
 113 static void scroll(Client *c, const Arg *arg);
 114 static void searchtext(Client *c, const Arg *arg);
 115 static void source(Client *c, const Arg *arg);
 116 static void showsearch(Client *c, const Arg *arg);
 117 static void showuri(Client *c, const Arg *arg);
 118 static void stop(Client *c, const Arg *arg);
 119 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 120 static gboolean focusview(GtkWidget *w, GdkEventFocus *e, Client *c);
 121 static void usage(void);
 122 static void update(Client *c);
 123 static void updatewinid(Client *c);
 124 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 125 static void zoom(Client *c, const Arg *arg);
 126
 127 /* configuration, allows nested code to access above variables */
 128 #include "config.h"
 129
 130 const char *
 131 autouri(Client *c) {
 132         if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 133                 return gtk_entry_get_text(GTK_ENTRY(c->uribar));
 134         else if(c->linkhover)
 135                 return c->linkhover;
 136         return NULL;
 137 }
 138
 139 char *
 140 buildpath(const char *path) {
 141         char *apath, *p;
 142         FILE *f;
 143
 144         /* creating directory */
 145         if(path[0] == '/')
 146                 apath = g_strdup(path);
 147         else
 148                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 149         if((p = strrchr(apath, '/'))) {
 150                 *p = '\0';
 151                 g_mkdir_with_parents(apath, 0755);
 152                 *p = '/';
 153         }
 154         /* creating file (gives error when apath ends with "/") */
 155         if((f = g_fopen(apath, "a")))
 156                 fclose(f);
 157         return apath;
 158 }
 159
 160 void
 161 changecookie(SoupCookieJar *j, SoupCookie *oc, SoupCookie *c, gpointer p) {
 162         SoupDate *e;
 163         SoupCookieJar *jar;
 164
 165         if(lockcookie)
 166                 return;
 167         if(c && c->expires == NULL) {
 168                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 169                 c = soup_cookie_copy(c);
 170                 soup_cookie_set_expires(c, e);
 171         }
 172
 173         jar = soup_cookie_jar_text_new(cookiefile, FALSE);
 174         if(c)
 175                 soup_cookie_jar_add_cookie(jar, soup_cookie_copy(c));
 176         else
 177                 soup_cookie_jar_delete_cookie(jar, oc);
 178         g_object_unref(jar);
 179 }
 180
 181 void
 182 cleanup(void) {
 183         while(clients)
 184                 destroyclient(clients);
 185         g_free(cookiefile);
 186         g_free(dldir);
 187         g_free(scriptfile);
 188         g_free(stylefile);
 189 }
 190
 191 void
 192 clipboard(Client *c, const Arg *arg) {
 193         gboolean paste = *(gboolean *)arg;
 194
 195         if(paste)
 196                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 197         else
 198                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
 199 }
 200
 201 void
 202 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 203         int i;
 204         GtkContainer *parent;
 205
 206         gtk_widget_hide_all(GTK_WIDGET(m));
 207         gtk_widget_show(GTK_WIDGET(m));
 208         for(i = 0; i < LENGTH(items); i++) {
 209                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 210                 if(parent)
 211                         gtk_container_remove(parent, c->items[i]);
 212                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 213                 gtk_widget_show(c->items[i]);
 214         }
 215 }
 216
 217 char *
 218 copystr(char **str, const char *src) {
 219         char *tmp;
 220         tmp = g_strdup(src);
 221
 222         if(str && *str) {
 223                 g_free(*str);
 224                 *str = tmp;
 225         }
 226         return tmp;
 227 }
 228
 229 void
 230 destroyclient(Client *c) {
 231         int i;
 232         Client *p;
 233
 234         gtk_widget_destroy(GTK_WIDGET(c->view));
 235         gtk_widget_destroy(c->scroll);
 236         gtk_widget_destroy(c->uribar);
 237         gtk_widget_destroy(c->searchbar);
 238         gtk_widget_destroy(c->vbox);
 239         gtk_widget_destroy(c->win);
 240         for(i = 0; i < LENGTH(items); i++)
 241                 gtk_widget_destroy(c->items[i]);
 242         free(c->items);
 243
 244         for(p = clients; p && p->next != c; p = p->next);
 245         if(p)
 246                 p->next = c->next;
 247         else
 248                 clients = c->next;
 249         free(c);
 250         if(clients == NULL)
 251                 gtk_main_quit();
 252 }
 253
 254 gboolean
 255 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 256         Arg arg;
 257         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 258                 webkit_web_policy_decision_ignore(p);
 259                 arg.v = (void *)webkit_network_request_get_uri(r);
 260                 newwindow(NULL, &arg);
 261                 return TRUE;
 262         }
 263         return FALSE;
 264 }
 265
 266 void
 267 destroywin(GtkWidget* w, Client *c) {
 268         destroyclient(c);
 269 }
 270
 271 void
 272 die(char *str) {
 273         fputs(str, stderr);
 274         exit(EXIT_FAILURE);
 275 }
 276
 277 void
 278 drawindicator(Client *c) {
 279         gint width;
 280         char *uri;
 281         GtkWidget *w;
 282         GdkGC *gc;
 283         GdkColor fg;
 284
 285         uri = geturi(c);
 286         w = c->indicator;
 287         width = c->progress * w->allocation.width / 100;
 288         gc = gdk_gc_new(w->window);
 289         gdk_color_parse(strstr(uri, "https://") == uri ?
 290                         progress_trust : progress, &fg);
 291         gdk_gc_set_rgb_fg_color(gc, &fg);
 292         gdk_draw_rectangle(w->window,
 293                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 294                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 295         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 296                         w->allocation.height);
 297         g_object_unref(gc);
 298 }
 299
 300 gboolean
 301 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 302         drawindicator(c);
 303         return TRUE;
 304 }
 305
 306 void
 307 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 308         WebKitDownloadStatus status;
 309
 310         status = webkit_download_get_status(c->download);
 311         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 312                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 313         }
 314         update(c);
 315 }
 316
 317 gboolean
 318 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 319         const char *filename;
 320         char *uri, *html;
 321
 322         stop(c, NULL);
 323         c->download = o;
 324         filename = webkit_download_get_suggested_filename(o);
 325         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 326         webkit_download_set_destination_uri(c->download, uri);
 327         c->progress = 0;
 328         g_free(uri);
 329         html = g_strdup_printf("Download <b>%s</b>...", filename);
 330         webkit_web_view_load_html_string(c->view, html,
 331                         webkit_download_get_uri(c->download));
 332         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 333         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 334         webkit_download_start(c->download);
 335
 336         c->title = copystr(&c->title, filename);
 337         update(c);
 338         g_free(html);
 339         return TRUE;
 340 }
 341
 342 char *
 343 geturi(Client *c) {
 344         char *uri;
 345
 346         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 347                 uri = copystr(NULL, "about:blank");
 348         return uri;
 349 }
 350
 351 void
 352 hidesearch(Client *c, const Arg *arg) {
 353         gtk_widget_hide(c->searchbar);
 354         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 355 }
 356
 357 void
 358 hideuri(Client *c, const Arg *arg) {
 359         gtk_widget_hide(c->uribar);
 360         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 361 }
 362
 363 void
 364 itemclick(GtkMenuItem *mi, Client *c) {
 365         int i;
 366         const char *label;
 367
 368         label = gtk_menu_item_get_label(mi);
 369         for(i = 0; i < LENGTH(items); i++)
 370                 if(!strcmp(items[i].label, label))
 371                         items[i].func(c, &(items[i].arg));
 372 }
 373
 374 gboolean
 375 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 376         guint i, focus;
 377         gboolean processed = FALSE;
 378
 379         if(ev->type != GDK_KEY_PRESS)
 380                 return FALSE;
 381         if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
 382                 focus = SearchBar;
 383         else if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 384                 focus = UriBar;
 385         else
 386                 focus = Browser;
 387         updatewinid(c);
 388         for(i = 0; i < LENGTH(keys); i++) {
 389                 if(focus & keys[i].focus
 390                                 && gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 391                                 && CLEANMASK(ev->state) == keys[i].mod
 392                                 && keys[i].func) {
 393                         keys[i].func(c, &(keys[i].arg));
 394                         processed = TRUE;
 395                 }
 396         }
 397         return processed;
 398 }
 399
 400 void
 401 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 402         if(l)
 403                 c->linkhover = copystr(&c->linkhover, l);
 404         else if(c->linkhover) {
 405                 free(c->linkhover);
 406                 c->linkhover = NULL;
 407         }
 408         update(c);
 409 }
 410
 411 void
 412 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 413         char *uri;
 414
 415         ignore_once = TRUE;
 416         uri = geturi(c);
 417         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), uriprop,
 418                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 419                         strlen(uri) + 1);
 420
 421         reloadcookies();
 422 }
 423
 424 void
 425 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 426         c->progress = 0;
 427         update(c);
 428 }
 429
 430 void
 431 loaduri(Client *c, const Arg *arg) {
 432         char *u;
 433         const char *uri = (char *)arg->v;
 434
 435         if(!uri)
 436                 uri = autouri(c);
 437         if(!uri)
 438                 return;
 439         u = g_strrstr(uri, "://") ? g_strdup(uri)
 440                 : g_strdup_printf("http://%s", uri);
 441         webkit_web_view_load_uri(c->view, u);
 442         c->progress = 0;
 443         c->title = copystr(&c->title, u);
 444         g_free(u);
 445         update(c);
 446 }
 447
 448 void
 449 navigate(Client *c, const Arg *arg) {
 450         gint steps = *(gint *)arg;
 451         webkit_web_view_go_back_or_forward(c->view, steps);
 452 }
 453
 454 Client *
 455 newclient(void) {
 456         int i;
 457         Client *c;
 458         WebKitWebSettings *settings;
 459         char *uri;
 460
 461         if(!(c = calloc(1, sizeof(Client))))
 462                 die("Cannot malloc!\n");
 463         /* Window */
 464         if(embed) {
 465                 c->win = gtk_plug_new(embed);
 466         }
 467         else {
 468                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 469                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 470         }
 471         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 472         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 473         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 474         g_signal_connect(G_OBJECT(c->win), "size-allocate", G_CALLBACK(resize), c);
 475
 476         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 477                 die("Cannot malloc!\n");
 478
 479         /* contextmenu */
 480         for(i = 0; i < LENGTH(items); i++) {
 481                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 482                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 483                                 G_CALLBACK(itemclick), c);
 484         }
 485
 486         /* VBox */
 487         c->vbox = gtk_vbox_new(FALSE, 0);
 488
 489         /* scrolled window */
 490         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 491         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 492                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 493
 494         /* webview */
 495         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 496         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 497         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 498         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 499         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 500         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 501         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 502         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 503         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 504         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 505         g_signal_connect(G_OBJECT(c->view), "focus-in-event", G_CALLBACK(focusview), c);
 506         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 507
 508         /* uribar */
 509         c->uribar = gtk_entry_new();
 510         gtk_entry_set_has_frame(GTK_ENTRY(c->uribar), FALSE);
 511
 512         /* searchbar */
 513         c->searchbar = gtk_entry_new();
 514         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 515
 516         /* indicator */
 517         c->indicator = gtk_drawing_area_new();
 518         gtk_widget_set_size_request(c->indicator, 0, 2);
 519         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 520                         G_CALLBACK (exposeindicator), c);
 521
 522         /* Arranging */
 523         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 524         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 525         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 526         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 527         gtk_container_add(GTK_CONTAINER(c->vbox), c->uribar);
 528         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 529
 530         /* Setup */
 531         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->uribar, FALSE, FALSE, 0, GTK_PACK_START);
 532         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 533         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 534         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 535         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 536         gtk_widget_hide_all(c->searchbar);
 537         gtk_widget_hide_all(c->uribar);
 538         gtk_widget_show(c->vbox);
 539         gtk_widget_show(c->indicator);
 540         gtk_widget_show(c->scroll);
 541         gtk_widget_show(GTK_WIDGET(c->view));
 542         gtk_widget_show(c->win);
 543         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 544         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 545         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 546         settings = webkit_web_view_get_settings(c->view);
 547         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 548         uri = g_strconcat("file://", stylefile, NULL);
 549         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 550         g_free(uri);
 551
 552         c->download = NULL;
 553         c->title = NULL;
 554         c->next = clients;
 555         clients = c;
 556         if(showxid) {
 557                 gdk_display_sync(gtk_widget_get_display(c->win));
 558                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 559                 fflush(NULL);
 560         }
 561         return c;
 562 }
 563
 564 void
 565 newwindow(Client *c, const Arg *arg) {
 566         guint i = 0;
 567         const char *cmd[7], *uri;
 568         const Arg a = { .v = (void *)cmd };
 569         char tmp[64];
 570
 571         cmd[i++] = progname;
 572         if(embed) {
 573                 cmd[i++] = "-e";
 574                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 575                 cmd[i++] = tmp;
 576         }
 577         if(showxid) {
 578                 cmd[i++] = "-x";
 579         }
 580         cmd[i++] = "--";
 581         uri = arg->v ? (char *)arg->v : autouri(c);
 582         if(uri)
 583                 cmd[i++] = uri;
 584         cmd[i++] = NULL;
 585         spawn(NULL, &a);
 586 }
 587
 588 WebKitWebView *
 589 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 590         Client *n = newclient();
 591         return n->view;
 592 }
 593
 594 void
 595 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 596         Arg arg = {.v = text };
 597         if(text != NULL)
 598                 loaduri((Client *) d, &arg);
 599 }
 600
 601 GdkFilterReturn
 602 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 603         Client *c = (Client *)d;
 604         XPropertyEvent *ev;
 605         Atom adummy;
 606         gint idummy;
 607         unsigned long ldummy;
 608         unsigned char *buf = NULL;
 609         Arg arg;
 610
 611         if(((XEvent *)e)->type == PropertyNotify) {
 612                 ev = &((XEvent *)e)->xproperty;
 613                 if(ev->atom == uriprop && ev->state == PropertyNewValue) {
 614                         if(ignore_once)
 615                                ignore_once = FALSE;
 616                         else {
 617                                 XGetWindowProperty(dpy, ev->window, uriprop, 0L, BUFSIZ, False, XA_STRING,
 618                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 619                                 arg.v = buf;
 620                                 loaduri(c, &arg);
 621                                 XFree(buf);
 622                         }
 623                         return GDK_FILTER_REMOVE;
 624                 }
 625         }
 626         return GDK_FILTER_CONTINUE;
 627 }
 628
 629 void
 630 print(Client *c, const Arg *arg) {
 631         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 632 }
 633
 634 void
 635 progresschange(WebKitWebView *v, gint p, Client *c) {
 636         c->progress = p;
 637         update(c);
 638 }
 639
 640 void
 641 reload(Client *c, const Arg *arg) {
 642         gboolean nocache = *(gboolean *)arg;
 643         if(nocache)
 644                  webkit_web_view_reload_bypass_cache(c->view);
 645         else
 646                  webkit_web_view_reload(c->view);
 647 }
 648
 649 void
 650 reloadcookies() {
 651         SoupCookieJar *jar;
 652         GSList *l, *e;
 653
 654         lockcookie = TRUE;
 655         for(l = e = soup_cookie_jar_all_cookies(cookies); e; e = e->next)
 656                 soup_cookie_jar_delete_cookie(cookies, (SoupCookie *)e->data);
 657         soup_cookies_free(l);
 658         jar = soup_cookie_jar_text_new(cookiefile, TRUE);
 659         for(l = e = soup_cookie_jar_all_cookies(jar); e; e = e->next)
 660                 soup_cookie_jar_add_cookie(cookies, (SoupCookie *)e->data);
 661         g_slist_free(l);
 662         lockcookie = FALSE;
 663         g_object_unref(jar);
 664 }
 665
 666 void
 667 scroll(Client *c, const Arg *arg) {
 668         gdouble v;
 669         GtkAdjustment *a;
 670
 671         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 672         v = gtk_adjustment_get_value(a);
 673         v += gtk_adjustment_get_step_increment(a) * arg->i;
 674         v = MAX(v, 0.0);
 675         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 676         gtk_adjustment_set_value(a, v);
 677 }
 678
 679 void
 680 resize(GtkWidget *w, GtkAllocation *a, Client *c) {
 681         double zoom;
 682
 683         zoom = webkit_web_view_get_zoom_level(c->view);
 684         if(a->width * a->height < 300 * 300 && zoom != 0.2)
 685                 webkit_web_view_set_zoom_level(c->view, 0.2);
 686         else if(zoom != 1.0)
 687                 webkit_web_view_set_zoom_level(c->view, 1.0);
 688 }
 689
 690
 691
 692 void
 693 sigchld(int unused) {
 694         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 695                 die("Can't install SIGCHLD handler");
 696         while(0 < waitpid(-1, NULL, WNOHANG));
 697 }
 698
 699 void
 700 setup(void) {
 701         SoupSession *s;
 702
 703         /* clean up any zombies immediately */
 704         sigchld(0);
 705         gtk_init(NULL, NULL);
 706         if (!g_thread_supported())
 707                 g_thread_init(NULL);
 708
 709         dpy = GDK_DISPLAY();
 710         session = webkit_get_default_session();
 711         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 712
 713         /* create dirs and files */
 714         cookiefile = buildpath(cookiefile);
 715         dldir = buildpath(dldir);
 716         scriptfile = buildpath(scriptfile);
 717         stylefile = buildpath(stylefile);
 718
 719         /* cookie persistance */
 720         s = webkit_get_default_session();
 721         cookies = soup_cookie_jar_new();
 722         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookies));
 723         g_signal_connect(cookies, "changed", G_CALLBACK(changecookie), NULL);
 724         reloadcookies();
 725 }
 726
 727 void
 728 showsearch(Client *c, const Arg *arg) {
 729         hideuri(c, NULL);
 730         gtk_widget_show(c->searchbar);
 731         gtk_widget_grab_focus(c->searchbar);
 732 }
 733
 734 void
 735 source(Client *c, const Arg *arg) {
 736         Arg a = { .b = FALSE };
 737         gboolean s;
 738
 739         s = webkit_web_view_get_view_source_mode(c->view);
 740         webkit_web_view_set_view_source_mode(c->view, !s);
 741         reload(c, &a);
 742 }
 743
 744 void
 745 searchtext(Client *c, const Arg *arg) {
 746         const char *text;
 747         gboolean forward = *(gboolean *)arg;
 748         text = gtk_entry_get_text(GTK_ENTRY(c->searchbar));
 749         webkit_web_view_search_text(c->view, text, FALSE, forward, TRUE);
 750         webkit_web_view_mark_text_matches(c->view, text, FALSE, 0);
 751 }
 752
 753 void
 754 showuri(Client *c, const Arg *arg) {
 755         char *uri;
 756
 757         hidesearch(c, NULL);
 758         uri = geturi(c);
 759         gtk_entry_set_text(GTK_ENTRY(c->uribar), uri);
 760         gtk_widget_show(c->uribar);
 761         gtk_widget_grab_focus(c->uribar);
 762 }
 763
 764 void
 765 stop(Client *c, const Arg *arg) {
 766         if(c->download)
 767                 webkit_download_cancel(c->download);
 768         else
 769                 webkit_web_view_stop_loading(c->view);
 770         c->download = NULL;
 771 }
 772
 773 void
 774 spawn(Client *c, const Arg *arg) {
 775         if(fork() == 0) {
 776                 if(dpy)
 777                         close(ConnectionNumber(dpy));
 778                 setsid();
 779                 execvp(((char **)arg->v)[0], (char **)arg->v);
 780                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 781                 perror(" failed");
 782                 exit(0);
 783         }
 784 }
 785
 786 void
 787 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 788         c->title = copystr(&c->title, t);
 789         update(c);
 790 }
 791
 792 gboolean
 793 focusview(GtkWidget *w, GdkEventFocus *e, Client *c) {
 794         hidesearch(c, NULL);
 795         hideuri(c, NULL);
 796         return FALSE;
 797 }
 798
 799 void
 800 usage(void) {
 801         fputs("surf - simple browser\n", stderr);
 802         die("usage: surf [-e Window] [-x] [uri]\n");
 803 }
 804
 805 void
 806 update(Client *c) {
 807         char *t;
 808
 809         if(c->progress != 100)
 810                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 811         else if(c->linkhover)
 812                 t = g_strdup(c->linkhover);
 813         else
 814                 t = g_strdup(c->title);
 815         drawindicator(c);
 816         gtk_window_set_title(GTK_WINDOW(c->win), t);
 817         g_free(t);
 818
 819 }
 820
 821 void
 822 updatewinid(Client *c) {
 823         snprintf(winid, LENGTH(winid), "%u",
 824                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 825 }
 826
 827 void
 828 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 829         JSStringRef jsscript;
 830         char *script;
 831         JSValueRef exception = NULL;
 832         GError *error;
 833
 834         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 835                 jsscript = JSStringCreateWithUTF8CString(script);
 836                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 837         }
 838 }
 839
 840 void
 841 zoom(Client *c, const Arg *arg) {
 842         if(arg->i < 0)          /* zoom out */
 843                 webkit_web_view_zoom_out(c->view);
 844         else if(arg->i > 0)     /* zoom in */
 845                 webkit_web_view_zoom_in(c->view);
 846         else                    /* reset */
 847                 webkit_web_view_set_zoom_level(c->view, 1.0);
 848 }
 849
 850 int main(int argc, char *argv[]) {
 851         int i;
 852         Arg arg;
 853
 854         progname = argv[0];
 855         /* command line args */
 856         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 857                 if(!strcmp(argv[i], "-x"))
 858                         showxid = TRUE;
 859                 else if(!strcmp(argv[i], "-e")) {
 860                         if(++i < argc)
 861                                 embed = atoi(argv[i]);
 862                         else
 863                                 usage();
 864                 }
 865                 else if(!strcmp(argv[i], "--")) {
 866                         i++;
 867                         break;
 868                 }
 869                 else if(!strcmp(argv[i], "-v"))
 870                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 871                 else
 872                         usage();
 873         }
 874         if(i < argc)
 875                 arg.v = argv[i];
 876         setup();
 877         newclient();
 878         if(arg.v) {
 879                 loaduri(clients, &arg);
 880         }
 881         gtk_main();
 882         cleanup();
 883         return EXIT_SUCCESS;
 884 }