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         gboolean b;
  28         gint i;
  29         const void *v;
  30 };
  31
  32 typedef struct Client {
  33         GtkWidget *win, *scroll, *vbox, *indicator;
  34         GtkWidget **items;
  35         WebKitWebView *view;
  36         WebKitDownload *download;
  37         char *title, *linkhover;
  38         const char *uri, *needle;
  39         gint progress;
  40         struct Client *next;
  41         gboolean zoomed;
  42 } Client;
  43
  44 typedef struct {
  45         char *label;
  46         void (*func)(Client *c, const Arg *arg);
  47         const Arg arg;
  48 } Item;
  49
  50 typedef struct {
  51         guint mod;
  52         guint keyval;
  53         void (*func)(Client *c, const Arg *arg);
  54         const Arg arg;
  55 } Key;
  56
  57 static Display *dpy;
  58 static Atom uriprop, findprop;
  59 static SoupCookieJar *cookies;
  60 static SoupSession *session;
  61 static Client *clients = NULL;
  62 static GdkNativeWindow embed = 0;
  63 static gboolean showxid = FALSE;
  64 static int ignorexprop = 0;
  65 static char winid[64];
  66 static char *progname;
  67 static gboolean lockcookie = FALSE;
  68
  69 static char *buildpath(const char *path);
  70 static void changecookie(SoupCookieJar *jar, SoupCookie *o, SoupCookie *n, gpointer p);
  71 static void cleanup(void);
  72 static void clipboard(Client *c, const Arg *arg);
  73 static void context(WebKitWebView *v, GtkMenu *m, Client *c);
  74 static char *copystr(char **str, const char *src);
  75 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  76 static void destroyclient(Client *c);
  77 static void destroywin(GtkWidget* w, Client *c);
  78 static void die(char *str);
  79 static void download(Client *c, const Arg *arg);
  80 static void drawindicator(Client *c);
  81 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  82 static char *geturi(Client *c);
  83 static const char *getatom(Client *c, Atom a);
  84 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  85 static void itemclick(GtkMenuItem *mi, Client *c);
  86 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  87 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  88 static void loadcommit(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  89 static void loadstart(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  90 static void loaduri(Client *c, const Arg *arg);
  91 static void navigate(Client *c, const Arg *arg);
  92 static Client *newclient(void);
  93 static void newwindow(Client *c, const Arg *arg);
  94 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  95 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
  96 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
  97 static void print(Client *c, const Arg *arg);
  98 static void progresschange(WebKitWebView *v, gint p, Client *c);
  99 static void reloadcookies();
 100 static void reload(Client *c, const Arg *arg);
 101 static void resize(GtkWidget *w, GtkAllocation *a, Client *c);
 102 static void sigchld(int unused);
 103 static void setatom(Client *c, Atom a, const char *v);
 104 static void setup(void);
 105 static void spawn(Client *c, const Arg *arg);
 106 static void scroll(Client *c, const Arg *arg);
 107 static void find(Client *c, const Arg *arg);
 108 static void source(Client *c, const Arg *arg);
 109 static void stop(Client *c, const Arg *arg);
 110 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 111 static void usage(void);
 112 static void update(Client *c);
 113 static void updatedownload(WebKitDownload *o, GParamSpec *pspec, Client *c);
 114 static void updatewinid(Client *c);
 115 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 116 static void zoom(Client *c, const Arg *arg);
 117
 118 /* configuration, allows nested code to access above variables */
 119 #include "config.h"
 120
 121 char *
 122 buildpath(const char *path) {
 123         char *apath, *p;
 124         FILE *f;
 125
 126         /* creating directory */
 127         if(path[0] == '/')
 128                 apath = g_strdup(path);
 129         else
 130                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 131         if((p = strrchr(apath, '/'))) {
 132                 *p = '\0';
 133                 g_mkdir_with_parents(apath, 0755);
 134                 *p = '/';
 135         }
 136         /* creating file (gives error when apath ends with "/") */
 137         if((f = g_fopen(apath, "a")))
 138                 fclose(f);
 139         return apath;
 140 }
 141
 142 void
 143 changecookie(SoupCookieJar *j, SoupCookie *oc, SoupCookie *c, gpointer p) {
 144         SoupDate *e;
 145         SoupCookieJar *jar;
 146
 147         if(lockcookie)
 148                 return;
 149         if(c && c->expires == NULL) {
 150                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 151                 c = soup_cookie_copy(c);
 152                 soup_cookie_set_expires(c, e);
 153         }
 154
 155         jar = soup_cookie_jar_text_new(cookiefile, FALSE);
 156         if(c)
 157                 soup_cookie_jar_add_cookie(jar, soup_cookie_copy(c));
 158         else
 159                 soup_cookie_jar_delete_cookie(jar, oc);
 160         g_object_unref(jar);
 161 }
 162
 163 void
 164 cleanup(void) {
 165         while(clients)
 166                 destroyclient(clients);
 167         g_free(cookiefile);
 168         g_free(dldir);
 169         g_free(scriptfile);
 170         g_free(stylefile);
 171 }
 172
 173 void
 174 clipboard(Client *c, const Arg *arg) {
 175         gboolean paste = *(gboolean *)arg;
 176
 177         if(paste)
 178                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 179         else
 180                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 181 }
 182
 183 void
 184 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 185         int i;
 186         GtkContainer *parent;
 187
 188         gtk_widget_hide_all(GTK_WIDGET(m));
 189         gtk_widget_show(GTK_WIDGET(m));
 190         for(i = 0; i < LENGTH(items); i++) {
 191                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 192                 if(parent)
 193                         gtk_container_remove(parent, c->items[i]);
 194                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 195                 gtk_widget_show(c->items[i]);
 196         }
 197 }
 198
 199 char *
 200 copystr(char **str, const char *src) {
 201         char *tmp;
 202         tmp = g_strdup(src);
 203
 204         if(str && *str) {
 205                 g_free(*str);
 206                 *str = tmp;
 207         }
 208         return tmp;
 209 }
 210
 211 void
 212 destroyclient(Client *c) {
 213         int i;
 214         Client *p;
 215
 216         gtk_widget_destroy(GTK_WIDGET(c->view));
 217         gtk_widget_destroy(c->scroll);
 218         gtk_widget_destroy(c->vbox);
 219         gtk_widget_destroy(c->indicator);
 220         gtk_widget_destroy(c->win);
 221         for(i = 0; i < LENGTH(items); i++)
 222                 gtk_widget_destroy(c->items[i]);
 223         free(c->items);
 224
 225         for(p = clients; p && p->next != c; p = p->next);
 226         if(p)
 227                 p->next = c->next;
 228         else
 229                 clients = c->next;
 230         free(c);
 231         if(clients == NULL)
 232                 gtk_main_quit();
 233 }
 234
 235 gboolean
 236 mime_policy_cb(WebKitWebView *web_view, WebKitWebFrame *frame, WebKitNetworkRequest *request, gchar *mime_type,  WebKitWebPolicyDecision *policy_decision, gpointer user_data) {
 237         if(webkit_web_view_can_show_mime_type(web_view, mime_type))
 238                 webkit_web_policy_decision_use(policy_decision);
 239         else
 240                 webkit_web_policy_decision_download(policy_decision);
 241         return TRUE;
 242 }
 243
 244 gboolean
 245 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 246         Arg arg;
 247
 248         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 249                 webkit_web_policy_decision_ignore(p);
 250                 arg.v = (void *)webkit_network_request_get_uri(r);
 251                 newwindow(NULL, &arg);
 252                 return TRUE;
 253         }
 254         return FALSE;
 255 }
 256
 257 void
 258 destroywin(GtkWidget* w, Client *c) {
 259         destroyclient(c);
 260 }
 261
 262 void
 263 die(char *str) {
 264         fputs(str, stderr);
 265         exit(EXIT_FAILURE);
 266 }
 267
 268 void
 269 drawindicator(Client *c) {
 270         gint width;
 271         const char *uri;
 272         GtkWidget *w;
 273         GdkGC *gc;
 274         GdkColor fg;
 275
 276         uri = getatom(c, uriprop);
 277         w = c->indicator;
 278         width = c->progress * w->allocation.width / 100;
 279         gc = gdk_gc_new(w->window);
 280         gdk_color_parse(strstr(uri, "https://") == uri ?
 281                         progress_trust : progress, &fg);
 282         gdk_gc_set_rgb_fg_color(gc, &fg);
 283         gdk_draw_rectangle(w->window,
 284                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 285                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 286         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 287                         w->allocation.height);
 288         g_object_unref(gc);
 289 }
 290
 291 gboolean
 292 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 293         drawindicator(c);
 294         return TRUE;
 295 }
 296
 297 void
 298 download(Client *c, const Arg *arg) {
 299         char *uri;
 300         WebKitNetworkRequest *r;
 301         WebKitDownload       *dl;
 302
 303         if(arg->v)
 304                 uri = (char *)arg->v;
 305         else
 306                 uri = c->linkhover ? c->linkhover : geturi(c);
 307         r = webkit_network_request_new(uri);
 308         dl = webkit_download_new(r);
 309         initdownload(c->view, dl, c);
 310 }
 311
 312 const char *
 313 getatom(Client *c, Atom a) {
 314         static char buf[BUFSIZ];
 315         Atom adummy;
 316         int idummy;
 317         unsigned long ldummy;
 318         unsigned char *p = NULL;
 319
 320         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 321                         a, 0L, BUFSIZ, False, XA_STRING,
 322                         &adummy, &idummy, &ldummy, &ldummy, &p);
 323         if(p)
 324                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 325         else
 326                 buf[0] = '\0';
 327         XFree(p);
 328         return buf;
 329 }
 330
 331 gboolean
 332 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 333         const char *filename;
 334         char *uri, *html;
 335
 336         stop(c, NULL);
 337         c->download = o;
 338         filename = webkit_download_get_suggested_filename(o);
 339         if(!strcmp("", filename))
 340                 filename = "index.html";
 341         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 342         webkit_download_set_destination_uri(c->download, uri);
 343         c->progress = 0;
 344         g_free(uri);
 345         html = g_strdup_printf("Download <b>%s</b>...", filename);
 346         webkit_web_view_load_html_string(c->view, html,
 347                         webkit_download_get_uri(c->download));
 348         g_signal_connect(c->download, "notify::progress", G_CALLBACK(updatedownload), c);
 349         g_signal_connect(c->download, "notify::status", G_CALLBACK(updatedownload), c);
 350         webkit_download_start(c->download);
 351
 352         c->title = copystr(&c->title, filename);
 353         update(c);
 354         g_free(html);
 355         return TRUE;
 356 }
 357
 358 char *
 359 geturi(Client *c) {
 360         char *uri;
 361
 362         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 363                 uri = "about:blank";
 364         return uri;
 365 }
 366
 367 void
 368 itemclick(GtkMenuItem *mi, Client *c) {
 369         int i;
 370         const char *label;
 371
 372         label = gtk_menu_item_get_label(mi);
 373         for(i = 0; i < LENGTH(items); i++)
 374                 if(!strcmp(items[i].label, label))
 375                         items[i].func(c, &(items[i].arg));
 376 }
 377
 378 gboolean
 379 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 380         guint i;
 381         gboolean processed = FALSE;
 382
 383         updatewinid(c);
 384         for(i = 0; i < LENGTH(keys); i++) {
 385                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 386                                 && CLEANMASK(ev->state) == keys[i].mod
 387                                 && keys[i].func) {
 388                         keys[i].func(c, &(keys[i].arg));
 389                         processed = TRUE;
 390                 }
 391         }
 392         return processed;
 393 }
 394
 395 void
 396 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 397         if(l)
 398                 c->linkhover = copystr(&c->linkhover, l);
 399         else if(c->linkhover) {
 400                 free(c->linkhover);
 401                 c->linkhover = NULL;
 402         }
 403         update(c);
 404 }
 405
 406 void
 407 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 408         setatom(c, uriprop, geturi(c));
 409 }
 410
 411 void
 412 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 413         c->progress = 0;
 414         update(c);
 415         reloadcookies();
 416 }
 417
 418 void
 419 loaduri(Client *c, const Arg *arg) {
 420         char *u;
 421         const char *uri = (char *)arg->v;
 422
 423         u = g_strrstr(uri, "://") ? g_strdup(uri)
 424                 : g_strdup_printf("http://%s", uri);
 425         webkit_web_view_load_uri(c->view, u);
 426         c->progress = 0;
 427         c->title = copystr(&c->title, u);
 428         g_free(u);
 429         update(c);
 430 }
 431
 432 void
 433 navigate(Client *c, const Arg *arg) {
 434         gint steps = *(gint *)arg;
 435         webkit_web_view_go_back_or_forward(c->view, steps);
 436 }
 437
 438 Client *
 439 newclient(void) {
 440         int i;
 441         Client *c;
 442         WebKitWebSettings *settings;
 443         GdkGeometry hints = { 1, 1 };
 444         char *uri;
 445
 446         if(!(c = calloc(1, sizeof(Client))))
 447                 die("Cannot malloc!\n");
 448         /* Window */
 449         if(embed) {
 450                 c->win = gtk_plug_new(embed);
 451         }
 452         else {
 453                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 454                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 455         }
 456         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 457         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 458         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 459         g_signal_connect(G_OBJECT(c->win), "size-allocate", G_CALLBACK(resize), c);
 460
 461         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 462                 die("Cannot malloc!\n");
 463
 464         /* contextmenu */
 465         for(i = 0; i < LENGTH(items); i++) {
 466                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 467                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 468                                 G_CALLBACK(itemclick), c);
 469         }
 470
 471         /* VBox */
 472         c->vbox = gtk_vbox_new(FALSE, 0);
 473
 474         /* scrolled window */
 475         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 476         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 477                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 478
 479         /* webview */
 480         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 481         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 482         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 483         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 484         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 485         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 486         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 487         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 488         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 489         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 490         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 491
 492         /* indicator */
 493         c->indicator = gtk_drawing_area_new();
 494         gtk_widget_set_size_request(c->indicator, 0, 2);
 495         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 496                         G_CALLBACK (exposeindicator), c);
 497
 498         /* Arranging */
 499         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 500         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 501         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 502         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 503
 504         /* Setup */
 505         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 506         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 507         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 508         gtk_widget_show(c->vbox);
 509         gtk_widget_show(c->indicator);
 510         gtk_widget_show(c->scroll);
 511         gtk_widget_show(GTK_WIDGET(c->view));
 512         gtk_widget_show(c->win);
 513         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 514         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 515         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 516         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 517         settings = webkit_web_view_get_settings(c->view);
 518         g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
 519         uri = g_strconcat("file://", stylefile, NULL);
 520         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 521         g_free(uri);
 522         setatom(c, findprop, "");
 523
 524         c->download = NULL;
 525         c->title = NULL;
 526         c->next = clients;
 527         clients = c;
 528         if(showxid) {
 529                 gdk_display_sync(gtk_widget_get_display(c->win));
 530                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 531                 fflush(NULL);
 532         }
 533         return c;
 534 }
 535
 536 void
 537 newwindow(Client *c, const Arg *arg) {
 538         guint i = 0;
 539         const char *cmd[7], *uri;
 540         const Arg a = { .v = (void *)cmd };
 541         char tmp[64];
 542
 543         cmd[i++] = progname;
 544         if(embed) {
 545                 cmd[i++] = "-e";
 546                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 547                 cmd[i++] = tmp;
 548         }
 549         if(showxid) {
 550                 cmd[i++] = "-x";
 551         }
 552         cmd[i++] = "--";
 553         uri = arg->v ? (char *)arg->v : c->linkhover;
 554         if(uri)
 555                 cmd[i++] = uri;
 556         cmd[i++] = NULL;
 557         spawn(NULL, &a);
 558 }
 559
 560 WebKitWebView *
 561 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 562         Client *n = newclient();
 563         return n->view;
 564 }
 565
 566 void
 567 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 568         Arg arg = {.v = text };
 569         if(text != NULL)
 570                 loaduri((Client *) d, &arg);
 571 }
 572
 573 GdkFilterReturn
 574 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 575         Client *c = (Client *)d;
 576         XPropertyEvent *ev;
 577         Arg arg;
 578
 579         if(((XEvent *)e)->type == PropertyNotify) {
 580                 ev = &((XEvent *)e)->xproperty;
 581                 if(ignorexprop)
 582                         ignorexprop--;
 583                 else if(ev->state == PropertyNewValue) {
 584                         if(ev->atom == uriprop) {
 585                                 arg.v = getatom(c, uriprop);
 586                                 loaduri(c, &arg);
 587                         }
 588                         else if(ev->atom == findprop) {
 589                                 arg.b = TRUE;
 590                                 find(c, &arg);
 591                         }
 592                         return GDK_FILTER_REMOVE;
 593                 }
 594         }
 595         return GDK_FILTER_CONTINUE;
 596 }
 597
 598 void
 599 print(Client *c, const Arg *arg) {
 600         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 601 }
 602
 603 void
 604 progresschange(WebKitWebView *v, gint p, Client *c) {
 605         c->progress = p;
 606         update(c);
 607 }
 608
 609 void
 610 reload(Client *c, const Arg *arg) {
 611         gboolean nocache = *(gboolean *)arg;
 612         if(nocache)
 613                  webkit_web_view_reload_bypass_cache(c->view);
 614         else
 615                  webkit_web_view_reload(c->view);
 616 }
 617
 618 void
 619 reloadcookies() {
 620         SoupCookieJar *jar;
 621         GSList *l, *e;
 622
 623         lockcookie = TRUE;
 624         for(l = e = soup_cookie_jar_all_cookies(cookies); e; e = e->next)
 625                 soup_cookie_jar_delete_cookie(cookies, (SoupCookie *)e->data);
 626         soup_cookies_free(l);
 627         jar = soup_cookie_jar_text_new(cookiefile, TRUE);
 628         for(l = e = soup_cookie_jar_all_cookies(jar); e; e = e->next)
 629                 soup_cookie_jar_add_cookie(cookies, (SoupCookie *)e->data);
 630         g_slist_free(l);
 631         lockcookie = FALSE;
 632         g_object_unref(jar);
 633 }
 634
 635 void
 636 scroll(Client *c, const Arg *arg) {
 637         gdouble v;
 638         GtkAdjustment *a;
 639
 640         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 641         v = gtk_adjustment_get_value(a);
 642         v += gtk_adjustment_get_step_increment(a) * arg->i;
 643         v = MAX(v, 0.0);
 644         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 645         gtk_adjustment_set_value(a, v);
 646 }
 647
 648 void
 649 resize(GtkWidget *w, GtkAllocation *a, Client *c) {
 650         double zoom;
 651
 652         if(c->zoomed)
 653                 return;
 654         zoom = webkit_web_view_get_zoom_level(c->view);
 655         if(a->width * a->height < 300 * 400 && zoom != 0.2)
 656                 webkit_web_view_set_zoom_level(c->view, 0.2);
 657         else if(zoom != 1.0)
 658                 webkit_web_view_set_zoom_level(c->view, 1.0);
 659 }
 660
 661 void
 662 sigchld(int unused) {
 663         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 664                 die("Can't install SIGCHLD handler");
 665         while(0 < waitpid(-1, NULL, WNOHANG));
 666 }
 667
 668 void
 669 setatom(Client *c, Atom a, const char *v) {
 670         XSync(dpy, False);
 671         ignorexprop++;
 672         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), a,
 673                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 674                         strlen(v) + 1);
 675 }
 676
 677 void
 678 setup(void) {
 679         SoupSession *s;
 680
 681         /* clean up any zombies immediately */
 682         sigchld(0);
 683         gtk_init(NULL, NULL);
 684         if (!g_thread_supported())
 685                 g_thread_init(NULL);
 686
 687         dpy = GDK_DISPLAY();
 688         session = webkit_get_default_session();
 689         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 690         findprop = XInternAtom(dpy, "_SURF_FIND", False);
 691
 692         /* create dirs and files */
 693         cookiefile = buildpath(cookiefile);
 694         dldir = buildpath(dldir);
 695         scriptfile = buildpath(scriptfile);
 696         stylefile = buildpath(stylefile);
 697
 698         /* cookie persistance */
 699         s = webkit_get_default_session();
 700         cookies = soup_cookie_jar_new();
 701         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookies));
 702         g_signal_connect(cookies, "changed", G_CALLBACK(changecookie), NULL);
 703         reloadcookies();
 704 }
 705
 706 void
 707 source(Client *c, const Arg *arg) {
 708         Arg a = { .b = FALSE };
 709         gboolean s;
 710
 711         s = webkit_web_view_get_view_source_mode(c->view);
 712         webkit_web_view_set_view_source_mode(c->view, !s);
 713         reload(c, &a);
 714 }
 715
 716 void
 717 find(Client *c, const Arg *arg) {
 718         const char *s;
 719
 720         s = getatom(c, findprop);
 721         gboolean forward = *(gboolean *)arg;
 722         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 723 }
 724
 725 void
 726 stop(Client *c, const Arg *arg) {
 727         if(c->download)
 728                 webkit_download_cancel(c->download);
 729         else
 730                 webkit_web_view_stop_loading(c->view);
 731         c->download = NULL;
 732 }
 733
 734 void
 735 spawn(Client *c, const Arg *arg) {
 736         if(fork() == 0) {
 737                 if(dpy)
 738                         close(ConnectionNumber(dpy));
 739                 setsid();
 740                 execvp(((char **)arg->v)[0], (char **)arg->v);
 741                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 742                 perror(" failed");
 743                 exit(0);
 744         }
 745 }
 746
 747 void
 748 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 749         c->title = copystr(&c->title, t);
 750         update(c);
 751 }
 752
 753 void
 754 usage(void) {
 755         fputs("surf - simple browser\n", stderr);
 756         die("usage: surf [-e Window] [-x] [uri]\n");
 757 }
 758
 759 void
 760 update(Client *c) {
 761         char *t;
 762
 763         if(c->progress != 100)
 764                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 765         else if(c->linkhover)
 766                 t = g_strdup(c->linkhover);
 767         else
 768                 t = g_strdup(c->title);
 769         drawindicator(c);
 770         gtk_window_set_title(GTK_WINDOW(c->win), t);
 771         g_free(t);
 772 }
 773
 774 void
 775 updatedownload(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 776         WebKitDownloadStatus status;
 777
 778         status = webkit_download_get_status(c->download);
 779         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 780                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 781         }
 782         update(c);
 783 }
 784
 785 void
 786 updatewinid(Client *c) {
 787         snprintf(winid, LENGTH(winid), "%u",
 788                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 789 }
 790
 791 void
 792 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 793         JSStringRef jsscript;
 794         char *script;
 795         JSValueRef exception = NULL;
 796         GError *error;
 797
 798         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 799                 jsscript = JSStringCreateWithUTF8CString(script);
 800                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 801         }
 802 }
 803
 804 void
 805 zoom(Client *c, const Arg *arg) {
 806         c->zoomed = TRUE;
 807         if(arg->i < 0)          /* zoom out */
 808                 webkit_web_view_zoom_out(c->view);
 809         else if(arg->i > 0)     /* zoom in */
 810                 webkit_web_view_zoom_in(c->view);
 811         else {                  /* reset */
 812                 c->zoomed = FALSE;
 813                 webkit_web_view_set_zoom_level(c->view, 1.0);
 814         }
 815 }
 816
 817 int main(int argc, char *argv[]) {
 818         int i;
 819         Arg arg;
 820
 821         progname = argv[0];
 822         /* command line args */
 823         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-'; i++) {
 824                 if(!strcmp(argv[i], "-x"))
 825                         showxid = TRUE;
 826                 else if(!strcmp(argv[i], "-e")) {
 827                         if(++i < argc)
 828                                 embed = atoi(argv[i]);
 829                         else
 830                                 usage();
 831                 }
 832                 else if(!strcmp(argv[i], "--")) {
 833                         i++;
 834                         break;
 835                 }
 836                 else if(!strcmp(argv[i], "-v"))
 837                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 838                 else
 839                         usage();
 840         }
 841         if(i < argc)
 842                 arg.v = argv[i];
 843         setup();
 844         newclient();
 845         if(arg.v) {
 846                 loaduri(clients, &arg);
 847         }
 848         gtk_main();
 849         cleanup();
 850         return EXIT_SUCCESS;
 851 }