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         gboolean zoomed;
  41 } Client;
  42
  43 typedef struct {
  44         char *label;
  45         void (*func)(Client *c, const Arg *arg);
  46         const Arg arg;
  47 } Item;
  48
  49 typedef enum {
  50         Browser = 0x0001,
  51         SearchBar = 0x0010,
  52         UriBar = 0x0100,
  53         Any = ~0,
  54 } KeyFocus;
  55
  56 typedef struct {
  57         guint mod;
  58         guint keyval;
  59         void (*func)(Client *c, const Arg *arg);
  60         const Arg arg;
  61         KeyFocus focus;
  62 } Key;
  63
  64 static Display *dpy;
  65 static Atom uriprop;
  66 static SoupCookieJar *cookies;
  67 static SoupSession *session;
  68 static Client *clients = NULL;
  69 static GdkNativeWindow embed = 0;
  70 static gboolean showxid = FALSE;
  71 static gboolean ignore_once = FALSE;
  72 static char winid[64];
  73 static char *progname;
  74 static gboolean lockcookie = FALSE;
  75
  76 static const char *autouri(Client *c);
  77 static char *buildpath(const char *path);
  78 static void changecookie(SoupCookieJar *jar, SoupCookie *o, SoupCookie *n, gpointer p);
  79 static void cleanup(void);
  80 static void clipboard(Client *c, const Arg *arg);
  81 static void context(WebKitWebView *v, GtkMenu *m, Client *c);
  82 static char *copystr(char **str, const char *src);
  83 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  84 static void destroyclient(Client *c);
  85 static void destroywin(GtkWidget* w, Client *c);
  86 static void die(char *str);
  87 static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
  88 static void drawindicator(Client *c);
  89 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  90 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  91 static char *geturi(Client *c);
  92 static void hidesearch(Client *c, const Arg *arg);
  93 static void hideuri(Client *c, const Arg *arg);
  94 static void itemclick(GtkMenuItem *mi, Client *c);
  95 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  96 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  97 static void loadcommit(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  98 static void loadstart(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  99 static void loaduri(Client *c, const Arg *arg);
 100 static void navigate(Client *c, const Arg *arg);
 101 static Client *newclient(void);
 102 static void newwindow(Client *c, const Arg *arg);
 103 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
 104 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 105 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 106 static void print(Client *c, const Arg *arg);
 107 static void progresschange(WebKitWebView *v, gint p, Client *c);
 108 static void reloadcookies();
 109 static void reload(Client *c, const Arg *arg);
 110 static void resize(GtkWidget *w, GtkAllocation *a, Client *c);
 111 static void sigchld(int unused);
 112 static void setup(void);
 113 static void spawn(Client *c, const Arg *arg);
 114 static void scroll(Client *c, const Arg *arg);
 115 static void searchtext(Client *c, const Arg *arg);
 116 static void source(Client *c, const Arg *arg);
 117 static void showsearch(Client *c, const Arg *arg);
 118 static void showuri(Client *c, const Arg *arg);
 119 static void stop(Client *c, const Arg *arg);
 120 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 121 static gboolean focusview(GtkWidget *w, GdkEventFocus *e, Client *c);
 122 static void usage(void);
 123 static void update(Client *c);
 124 static void updatewinid(Client *c);
 125 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 126 static void zoom(Client *c, const Arg *arg);
 127
 128 /* configuration, allows nested code to access above variables */
 129 #include "config.h"
 130
 131 const char *
 132 autouri(Client *c) {
 133         if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 134                 return gtk_entry_get_text(GTK_ENTRY(c->uribar));
 135         else if(c->linkhover)
 136                 return c->linkhover;
 137         return NULL;
 138 }
 139
 140 char *
 141 buildpath(const char *path) {
 142         char *apath, *p;
 143         FILE *f;
 144
 145         /* creating directory */
 146         if(path[0] == '/')
 147                 apath = g_strdup(path);
 148         else
 149                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 150         if((p = strrchr(apath, '/'))) {
 151                 *p = '\0';
 152                 g_mkdir_with_parents(apath, 0755);
 153                 *p = '/';
 154         }
 155         /* creating file (gives error when apath ends with "/") */
 156         if((f = g_fopen(apath, "a")))
 157                 fclose(f);
 158         return apath;
 159 }
 160
 161 void
 162 changecookie(SoupCookieJar *j, SoupCookie *oc, SoupCookie *c, gpointer p) {
 163         SoupDate *e;
 164         SoupCookieJar *jar;
 165
 166         if(lockcookie)
 167                 return;
 168         if(c && c->expires == NULL) {
 169                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 170                 c = soup_cookie_copy(c);
 171                 soup_cookie_set_expires(c, e);
 172         }
 173
 174         jar = soup_cookie_jar_text_new(cookiefile, FALSE);
 175         if(c)
 176                 soup_cookie_jar_add_cookie(jar, soup_cookie_copy(c));
 177         else
 178                 soup_cookie_jar_delete_cookie(jar, oc);
 179         g_object_unref(jar);
 180 }
 181
 182 void
 183 cleanup(void) {
 184         while(clients)
 185                 destroyclient(clients);
 186         g_free(cookiefile);
 187         g_free(dldir);
 188         g_free(scriptfile);
 189         g_free(stylefile);
 190 }
 191
 192 void
 193 clipboard(Client *c, const Arg *arg) {
 194         gboolean paste = *(gboolean *)arg;
 195
 196         if(paste)
 197                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 198         else
 199                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
 200 }
 201
 202 void
 203 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 204         int i;
 205         GtkContainer *parent;
 206
 207         gtk_widget_hide_all(GTK_WIDGET(m));
 208         gtk_widget_show(GTK_WIDGET(m));
 209         for(i = 0; i < LENGTH(items); i++) {
 210                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 211                 if(parent)
 212                         gtk_container_remove(parent, c->items[i]);
 213                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 214                 gtk_widget_show(c->items[i]);
 215         }
 216 }
 217
 218 char *
 219 copystr(char **str, const char *src) {
 220         char *tmp;
 221         tmp = g_strdup(src);
 222
 223         if(str && *str) {
 224                 g_free(*str);
 225                 *str = tmp;
 226         }
 227         return tmp;
 228 }
 229
 230 void
 231 destroyclient(Client *c) {
 232         int i;
 233         Client *p;
 234
 235         gtk_widget_destroy(GTK_WIDGET(c->view));
 236         gtk_widget_destroy(c->scroll);
 237         gtk_widget_destroy(c->uribar);
 238         gtk_widget_destroy(c->searchbar);
 239         gtk_widget_destroy(c->vbox);
 240         gtk_widget_destroy(c->win);
 241         for(i = 0; i < LENGTH(items); i++)
 242                 gtk_widget_destroy(c->items[i]);
 243         free(c->items);
 244
 245         for(p = clients; p && p->next != c; p = p->next);
 246         if(p)
 247                 p->next = c->next;
 248         else
 249                 clients = c->next;
 250         free(c);
 251         if(clients == NULL)
 252                 gtk_main_quit();
 253 }
 254
 255 gboolean
 256 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 257         Arg arg;
 258         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 259                 webkit_web_policy_decision_ignore(p);
 260                 arg.v = (void *)webkit_network_request_get_uri(r);
 261                 newwindow(NULL, &arg);
 262                 return TRUE;
 263         }
 264         return FALSE;
 265 }
 266
 267 void
 268 destroywin(GtkWidget* w, Client *c) {
 269         destroyclient(c);
 270 }
 271
 272 void
 273 die(char *str) {
 274         fputs(str, stderr);
 275         exit(EXIT_FAILURE);
 276 }
 277
 278 void
 279 drawindicator(Client *c) {
 280         gint width;
 281         char *uri;
 282         GtkWidget *w;
 283         GdkGC *gc;
 284         GdkColor fg;
 285
 286         uri = geturi(c);
 287         w = c->indicator;
 288         width = c->progress * w->allocation.width / 100;
 289         gc = gdk_gc_new(w->window);
 290         gdk_color_parse(strstr(uri, "https://") == uri ?
 291                         progress_trust : progress, &fg);
 292         gdk_gc_set_rgb_fg_color(gc, &fg);
 293         gdk_draw_rectangle(w->window,
 294                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 295                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 296         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 297                         w->allocation.height);
 298         g_object_unref(gc);
 299 }
 300
 301 gboolean
 302 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 303         drawindicator(c);
 304         return TRUE;
 305 }
 306
 307 void
 308 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 309         WebKitDownloadStatus status;
 310
 311         status = webkit_download_get_status(c->download);
 312         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 313                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 314         }
 315         update(c);
 316 }
 317
 318 gboolean
 319 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 320         const char *filename;
 321         char *uri, *html;
 322
 323         stop(c, NULL);
 324         c->download = o;
 325         filename = webkit_download_get_suggested_filename(o);
 326         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 327         webkit_download_set_destination_uri(c->download, uri);
 328         c->progress = 0;
 329         g_free(uri);
 330         html = g_strdup_printf("Download <b>%s</b>...", filename);
 331         webkit_web_view_load_html_string(c->view, html,
 332                         webkit_download_get_uri(c->download));
 333         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 334         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 335         webkit_download_start(c->download);
 336
 337         c->title = copystr(&c->title, filename);
 338         update(c);
 339         g_free(html);
 340         return TRUE;
 341 }
 342
 343 char *
 344 geturi(Client *c) {
 345         char *uri;
 346
 347         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 348                 uri = "about:blank";
 349         return uri;
 350 }
 351
 352 void
 353 hidesearch(Client *c, const Arg *arg) {
 354         gtk_widget_hide(c->searchbar);
 355         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 356 }
 357
 358 void
 359 hideuri(Client *c, const Arg *arg) {
 360         gtk_widget_hide(c->uribar);
 361         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 362 }
 363
 364 void
 365 itemclick(GtkMenuItem *mi, Client *c) {
 366         int i;
 367         const char *label;
 368
 369         label = gtk_menu_item_get_label(mi);
 370         for(i = 0; i < LENGTH(items); i++)
 371                 if(!strcmp(items[i].label, label))
 372                         items[i].func(c, &(items[i].arg));
 373 }
 374
 375 gboolean
 376 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 377         guint i, focus;
 378         gboolean processed = FALSE;
 379
 380         if(ev->type != GDK_KEY_PRESS)
 381                 return FALSE;
 382         if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
 383                 focus = SearchBar;
 384         else if(GTK_WIDGET_HAS_FOCUS(c->uribar))
 385                 focus = UriBar;
 386         else
 387                 focus = Browser;
 388         updatewinid(c);
 389         for(i = 0; i < LENGTH(keys); i++) {
 390                 if(focus & keys[i].focus
 391                                 && gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 392                                 && CLEANMASK(ev->state) == keys[i].mod
 393                                 && keys[i].func) {
 394                         keys[i].func(c, &(keys[i].arg));
 395                         processed = TRUE;
 396                 }
 397         }
 398         return processed;
 399 }
 400
 401 void
 402 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 403         if(l)
 404                 c->linkhover = copystr(&c->linkhover, l);
 405         else if(c->linkhover) {
 406                 free(c->linkhover);
 407                 c->linkhover = NULL;
 408         }
 409         update(c);
 410 }
 411
 412 void
 413 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 414         char *uri;
 415
 416         ignore_once = TRUE;
 417         uri = geturi(c);
 418         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), uriprop,
 419                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 420                         strlen(uri) + 1);
 421
 422         reloadcookies();
 423 }
 424
 425 void
 426 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 427         c->progress = 0;
 428         update(c);
 429 }
 430
 431 void
 432 loaduri(Client *c, const Arg *arg) {
 433         char *u;
 434         const char *uri = (char *)arg->v;
 435
 436         if(!uri)
 437                 uri = autouri(c);
 438         if(!uri)
 439                 return;
 440         u = g_strrstr(uri, "://") ? g_strdup(uri)
 441                 : g_strdup_printf("http://%s", uri);
 442         webkit_web_view_load_uri(c->view, u);
 443         c->progress = 0;
 444         c->title = copystr(&c->title, u);
 445         g_free(u);
 446         update(c);
 447 }
 448
 449 void
 450 navigate(Client *c, const Arg *arg) {
 451         gint steps = *(gint *)arg;
 452         webkit_web_view_go_back_or_forward(c->view, steps);
 453 }
 454
 455 Client *
 456 newclient(void) {
 457         int i;
 458         Client *c;
 459         WebKitWebSettings *settings;
 460         char *uri;
 461
 462         if(!(c = calloc(1, sizeof(Client))))
 463                 die("Cannot malloc!\n");
 464         /* Window */
 465         if(embed) {
 466                 c->win = gtk_plug_new(embed);
 467         }
 468         else {
 469                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 470                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 471         }
 472         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 473         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 474         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 475         g_signal_connect(G_OBJECT(c->win), "size-allocate", G_CALLBACK(resize), c);
 476
 477         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 478                 die("Cannot malloc!\n");
 479
 480         /* contextmenu */
 481         for(i = 0; i < LENGTH(items); i++) {
 482                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 483                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 484                                 G_CALLBACK(itemclick), c);
 485         }
 486
 487         /* VBox */
 488         c->vbox = gtk_vbox_new(FALSE, 0);
 489
 490         /* scrolled window */
 491         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 492         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 493                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 494
 495         /* webview */
 496         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 497         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 498         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 499         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 500         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 501         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 502         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 503         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 504         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 505         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 506         g_signal_connect(G_OBJECT(c->view), "focus-in-event", G_CALLBACK(focusview), c);
 507         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 508
 509         /* uribar */
 510         c->uribar = gtk_entry_new();
 511         gtk_entry_set_has_frame(GTK_ENTRY(c->uribar), FALSE);
 512
 513         /* searchbar */
 514         c->searchbar = gtk_entry_new();
 515         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 516
 517         /* indicator */
 518         c->indicator = gtk_drawing_area_new();
 519         gtk_widget_set_size_request(c->indicator, 0, 2);
 520         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 521                         G_CALLBACK (exposeindicator), c);
 522
 523         /* Arranging */
 524         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 525         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 526         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 527         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 528         gtk_container_add(GTK_CONTAINER(c->vbox), c->uribar);
 529         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 530
 531         /* Setup */
 532         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->uribar, FALSE, FALSE, 0, GTK_PACK_START);
 533         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 534         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 535         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 536         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 537         gtk_widget_hide_all(c->searchbar);
 538         gtk_widget_hide_all(c->uribar);
 539         gtk_widget_show(c->vbox);
 540         gtk_widget_show(c->indicator);
 541         gtk_widget_show(c->scroll);
 542         gtk_widget_show(GTK_WIDGET(c->view));
 543         gtk_widget_show(c->win);
 544         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 545         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 546         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 547         settings = webkit_web_view_get_settings(c->view);
 548         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 549         uri = g_strconcat("file://", stylefile, NULL);
 550         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 551         g_free(uri);
 552
 553         c->download = NULL;
 554         c->title = NULL;
 555         c->next = clients;
 556         clients = c;
 557         if(showxid) {
 558                 gdk_display_sync(gtk_widget_get_display(c->win));
 559                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 560                 fflush(NULL);
 561         }
 562         return c;
 563 }
 564
 565 void
 566 newwindow(Client *c, const Arg *arg) {
 567         guint i = 0;
 568         const char *cmd[7], *uri;
 569         const Arg a = { .v = (void *)cmd };
 570         char tmp[64];
 571
 572         cmd[i++] = progname;
 573         if(embed) {
 574                 cmd[i++] = "-e";
 575                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 576                 cmd[i++] = tmp;
 577         }
 578         if(showxid) {
 579                 cmd[i++] = "-x";
 580         }
 581         cmd[i++] = "--";
 582         uri = arg->v ? (char *)arg->v : autouri(c);
 583         if(uri)
 584                 cmd[i++] = uri;
 585         cmd[i++] = NULL;
 586         spawn(NULL, &a);
 587 }
 588
 589 WebKitWebView *
 590 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 591         Client *n = newclient();
 592         return n->view;
 593 }
 594
 595 void
 596 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 597         Arg arg = {.v = text };
 598         if(text != NULL)
 599                 loaduri((Client *) d, &arg);
 600 }
 601
 602 GdkFilterReturn
 603 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 604         Client *c = (Client *)d;
 605         XPropertyEvent *ev;
 606         Atom adummy;
 607         gint idummy;
 608         unsigned long ldummy;
 609         unsigned char *buf = NULL;
 610         Arg arg;
 611
 612         if(((XEvent *)e)->type == PropertyNotify) {
 613                 ev = &((XEvent *)e)->xproperty;
 614                 if(ev->atom == uriprop && ev->state == PropertyNewValue) {
 615                         if(ignore_once)
 616                                ignore_once = FALSE;
 617                         else {
 618                                 XGetWindowProperty(dpy, ev->window, uriprop, 0L, BUFSIZ, False, XA_STRING,
 619                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 620                                 arg.v = buf;
 621                                 loaduri(c, &arg);
 622                                 XFree(buf);
 623                         }
 624                         return GDK_FILTER_REMOVE;
 625                 }
 626         }
 627         return GDK_FILTER_CONTINUE;
 628 }
 629
 630 void
 631 print(Client *c, const Arg *arg) {
 632         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 633 }
 634
 635 void
 636 progresschange(WebKitWebView *v, gint p, Client *c) {
 637         c->progress = p;
 638         update(c);
 639 }
 640
 641 void
 642 reload(Client *c, const Arg *arg) {
 643         gboolean nocache = *(gboolean *)arg;
 644         if(nocache)
 645                  webkit_web_view_reload_bypass_cache(c->view);
 646         else
 647                  webkit_web_view_reload(c->view);
 648 }
 649
 650 void
 651 reloadcookies() {
 652         SoupCookieJar *jar;
 653         GSList *l, *e;
 654
 655         lockcookie = TRUE;
 656         for(l = e = soup_cookie_jar_all_cookies(cookies); e; e = e->next)
 657                 soup_cookie_jar_delete_cookie(cookies, (SoupCookie *)e->data);
 658         soup_cookies_free(l);
 659         jar = soup_cookie_jar_text_new(cookiefile, TRUE);
 660         for(l = e = soup_cookie_jar_all_cookies(jar); e; e = e->next)
 661                 soup_cookie_jar_add_cookie(cookies, (SoupCookie *)e->data);
 662         g_slist_free(l);
 663         lockcookie = FALSE;
 664         g_object_unref(jar);
 665 }
 666
 667 void
 668 scroll(Client *c, const Arg *arg) {
 669         gdouble v;
 670         GtkAdjustment *a;
 671
 672         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 673         v = gtk_adjustment_get_value(a);
 674         v += gtk_adjustment_get_step_increment(a) * arg->i;
 675         v = MAX(v, 0.0);
 676         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 677         gtk_adjustment_set_value(a, v);
 678 }
 679
 680 void
 681 resize(GtkWidget *w, GtkAllocation *a, Client *c) {
 682         double zoom;
 683
 684         if(c->zoomed)
 685                 return;
 686         zoom = webkit_web_view_get_zoom_level(c->view);
 687         if(a->width * a->height < 300 * 400 && zoom != 0.2)
 688                 webkit_web_view_set_zoom_level(c->view, 0.2);
 689         else if(zoom != 1.0)
 690                 webkit_web_view_set_zoom_level(c->view, 1.0);
 691 }
 692
 693 void
 694 sigchld(int unused) {
 695         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 696                 die("Can't install SIGCHLD handler");
 697         while(0 < waitpid(-1, NULL, WNOHANG));
 698 }
 699
 700 void
 701 setup(void) {
 702         SoupSession *s;
 703
 704         /* clean up any zombies immediately */
 705         sigchld(0);
 706         gtk_init(NULL, NULL);
 707         if (!g_thread_supported())
 708                 g_thread_init(NULL);
 709
 710         dpy = GDK_DISPLAY();
 711         session = webkit_get_default_session();
 712         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 713
 714         /* create dirs and files */
 715         cookiefile = buildpath(cookiefile);
 716         dldir = buildpath(dldir);
 717         scriptfile = buildpath(scriptfile);
 718         stylefile = buildpath(stylefile);
 719
 720         /* cookie persistance */
 721         s = webkit_get_default_session();
 722         cookies = soup_cookie_jar_new();
 723         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookies));
 724         g_signal_connect(cookies, "changed", G_CALLBACK(changecookie), NULL);
 725         reloadcookies();
 726 }
 727
 728 void
 729 showsearch(Client *c, const Arg *arg) {
 730         hideuri(c, NULL);
 731         gtk_widget_show(c->searchbar);
 732         gtk_widget_grab_focus(c->searchbar);
 733 }
 734
 735 void
 736 source(Client *c, const Arg *arg) {
 737         Arg a = { .b = FALSE };
 738         gboolean s;
 739
 740         s = webkit_web_view_get_view_source_mode(c->view);
 741         webkit_web_view_set_view_source_mode(c->view, !s);
 742         reload(c, &a);
 743 }
 744
 745 void
 746 searchtext(Client *c, const Arg *arg) {
 747         const char *text;
 748         gboolean forward = *(gboolean *)arg;
 749         text = gtk_entry_get_text(GTK_ENTRY(c->searchbar));
 750         webkit_web_view_search_text(c->view, text, FALSE, forward, TRUE);
 751         webkit_web_view_mark_text_matches(c->view, text, FALSE, 0);
 752 }
 753
 754 void
 755 showuri(Client *c, const Arg *arg) {
 756         char *uri;
 757
 758         hidesearch(c, NULL);
 759         uri = geturi(c);
 760         gtk_entry_set_text(GTK_ENTRY(c->uribar), uri);
 761         gtk_widget_show(c->uribar);
 762         gtk_widget_grab_focus(c->uribar);
 763 }
 764
 765 void
 766 stop(Client *c, const Arg *arg) {
 767         if(c->download)
 768                 webkit_download_cancel(c->download);
 769         else
 770                 webkit_web_view_stop_loading(c->view);
 771         c->download = NULL;
 772 }
 773
 774 void
 775 spawn(Client *c, const Arg *arg) {
 776         if(fork() == 0) {
 777                 if(dpy)
 778                         close(ConnectionNumber(dpy));
 779                 setsid();
 780                 execvp(((char **)arg->v)[0], (char **)arg->v);
 781                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 782                 perror(" failed");
 783                 exit(0);
 784         }
 785 }
 786
 787 void
 788 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 789         c->title = copystr(&c->title, t);
 790         update(c);
 791 }
 792
 793 gboolean
 794 focusview(GtkWidget *w, GdkEventFocus *e, Client *c) {
 795         hidesearch(c, NULL);
 796         hideuri(c, NULL);
 797         return FALSE;
 798 }
 799
 800 void
 801 usage(void) {
 802         fputs("surf - simple browser\n", stderr);
 803         die("usage: surf [-e Window] [-x] [uri]\n");
 804 }
 805
 806 void
 807 update(Client *c) {
 808         char *t;
 809
 810         if(c->progress != 100)
 811                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 812         else if(c->linkhover)
 813                 t = g_strdup(c->linkhover);
 814         else
 815                 t = g_strdup(c->title);
 816         drawindicator(c);
 817         gtk_window_set_title(GTK_WINDOW(c->win), t);
 818         g_free(t);
 819
 820 }
 821
 822 void
 823 updatewinid(Client *c) {
 824         snprintf(winid, LENGTH(winid), "%u",
 825                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 826 }
 827
 828 void
 829 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 830         JSStringRef jsscript;
 831         char *script;
 832         JSValueRef exception = NULL;
 833         GError *error;
 834
 835         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 836                 jsscript = JSStringCreateWithUTF8CString(script);
 837                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 838         }
 839 }
 840
 841 void
 842 zoom(Client *c, const Arg *arg) {
 843         c->zoomed = TRUE;
 844         if(arg->i < 0)          /* zoom out */
 845                 webkit_web_view_zoom_out(c->view);
 846         else if(arg->i > 0)     /* zoom in */
 847                 webkit_web_view_zoom_in(c->view);
 848         else {                  /* reset */
 849                 c->zoomed = FALSE;
 850                 webkit_web_view_set_zoom_level(c->view, 1.0);
 851         }
 852 }
 853
 854 int main(int argc, char *argv[]) {
 855         int i;
 856         Arg arg;
 857
 858         progname = argv[0];
 859         /* command line args */
 860         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 861                 if(!strcmp(argv[i], "-x"))
 862                         showxid = TRUE;
 863                 else if(!strcmp(argv[i], "-e")) {
 864                         if(++i < argc)
 865                                 embed = atoi(argv[i]);
 866                         else
 867                                 usage();
 868                 }
 869                 else if(!strcmp(argv[i], "--")) {
 870                         i++;
 871                         break;
 872                 }
 873                 else if(!strcmp(argv[i], "-v"))
 874                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 875                 else
 876                         usage();
 877         }
 878         if(i < argc)
 879                 arg.v = argv[i];
 880         setup();
 881         newclient();
 882         if(arg.v) {
 883                 loaduri(clients, &arg);
 884         }
 885         gtk_main();
 886         cleanup();
 887         return EXIT_SUCCESS;
 888 }