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 #include <sys/file.h>
  22
  23 #define LENGTH(x)               (sizeof x / sizeof x[0])
  24 #define COOKIEJAR_TYPE          (cookiejar_get_type ())
  25 #define COOKIEJAR(obj)          (G_TYPE_CHECK_INSTANCE_CAST ((obj), COOKIEJAR_TYPE, CookieJar))
  26
  27 enum { AtomFind, AtomGo, AtomUri, AtomLast };
  28
  29 typedef union Arg Arg;
  30 union Arg {
  31         gboolean b;
  32         gint i;
  33         const void *v;
  34 };
  35
  36 typedef struct Client {
  37         GtkWidget *win, *scroll, *vbox, *indicator;
  38         WebKitWebView *view;
  39         char *title, *linkhover;
  40         const char *uri, *needle;
  41         gint progress;
  42         gboolean sslfailed;
  43         struct Client *next;
  44         gboolean zoomed;
  45 } Client;
  46
  47 typedef struct {
  48         char *label;
  49         void (*func)(Client *c, const Arg *arg);
  50         const Arg arg;
  51 } Item;
  52
  53 typedef struct {
  54         guint mod;
  55         guint keyval;
  56         void (*func)(Client *c, const Arg *arg);
  57         const Arg arg;
  58 } Key;
  59
  60 typedef struct {
  61         SoupCookieJarText parent_instance;
  62         int lock;
  63 } CookieJar;
  64
  65 typedef struct {
  66         SoupCookieJarTextClass parent_class;
  67 } CookieJarClass;
  68
  69 G_DEFINE_TYPE(CookieJar, cookiejar, SOUP_TYPE_COOKIE_JAR_TEXT)
  70
  71 static Display *dpy;
  72 static Atom atoms[AtomLast];
  73 static Client *clients = NULL;
  74 static GdkNativeWindow embed = 0;
  75 static gboolean showxid = FALSE;
  76 static char winid[64];
  77 static char *progname;
  78 static gboolean loadimage = 1, plugin = 1, script = 1;
  79
  80 static char *buildpath(const char *path);
  81 static gboolean buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl);
  82 static void cleanup(void);
  83 static void clipboard(Client *c, const Arg *arg);
  84 static void cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie, SoupCookie *new_cookie);
  85 static void cookiejar_finalize(GObject *self);
  86 static SoupCookieJar *cookiejar_new(const char *filename, gboolean read_only);
  87 static void cookiejar_set_property(GObject *self, guint prop_id, const GValue *value, GParamSpec *pspec);
  88 static char *copystr(char **str, const char *src);
  89 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  90 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c);
  91 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  92 static void destroyclient(Client *c);
  93 static void destroywin(GtkWidget* w, Client *c);
  94 static void die(char *str);
  95 static void drawindicator(Client *c);
  96 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  97 static void find(Client *c, const Arg *arg);
  98 static const char *getatom(Client *c, int a);
  99 static char *geturi(Client *c);
 100 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
 101 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
 102 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
 103 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 104 static void loaduri(Client *c, const Arg *arg);
 105 static void navigate(Client *c, const Arg *arg);
 106 static Client *newclient(void);
 107 static void newwindow(Client *c, const Arg *arg, gboolean noembed);
 108 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 109 static void populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c);
 110 static void popupactivate(GtkMenuItem *menu, Client *);
 111 static void print(Client *c, const Arg *arg);
 112 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 113 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 114 static void reload(Client *c, const Arg *arg);
 115 static void scroll_h(Client *c, const Arg *arg);
 116 static void scroll_v(Client *c, const Arg *arg);
 117 static void scroll(GtkAdjustment *a, const Arg *arg);
 118 static void setatom(Client *c, int a, const char *v);
 119 static void setup(void);
 120 static void sigchld(int unused);
 121 static void source(Client *c, const Arg *arg);
 122 static void spawn(Client *c, const Arg *arg);
 123 static void eval(Client *c, const Arg *arg);
 124 static void stop(Client *c, const Arg *arg);
 125 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 126 static void update(Client *c);
 127 static void updatewinid(Client *c);
 128 static void usage(void);
 129 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 130 static void zoom(Client *c, const Arg *arg);
 131
 132 /* configuration, allows nested code to access above variables */
 133 #include "config.h"
 134
 135 char *
 136 buildpath(const char *path) {
 137         char *apath, *p;
 138         FILE *f;
 139
 140         /* creating directory */
 141         if(path[0] == '/')
 142                 apath = g_strdup(path);
 143         else
 144                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 145         if((p = strrchr(apath, '/'))) {
 146                 *p = '\0';
 147                 g_mkdir_with_parents(apath, 0700);
 148                 g_chmod(apath, 0700); /* in case it existed */
 149                 *p = '/';
 150         }
 151         /* creating file (gives error when apath ends with "/") */
 152         if((f = fopen(apath, "a"))) {
 153                 g_chmod(apath, 0600); /* always */
 154                 fclose(f);
 155         }
 156         return apath;
 157 }
 158
 159 static gboolean
 160 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 161         WebKitHitTestResultContext context;
 162         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web, e);
 163         Arg arg;
 164
 165         g_object_get(result, "context", &context, NULL);
 166         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 167                 if(e->button == 2) {
 168                         g_object_get(result, "link-uri", &arg.v, NULL);
 169                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 170                         return true;
 171                 }
 172         }
 173         return false;
 174 }
 175
 176 void
 177 cleanup(void) {
 178         while(clients)
 179                 destroyclient(clients);
 180         g_free(cookiefile);
 181         g_free(scriptfile);
 182         g_free(stylefile);
 183 }
 184
 185 static void
 186 cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie, SoupCookie *new_cookie) {
 187         flock(COOKIEJAR(self)->lock, LOCK_EX);
 188         if(new_cookie && !new_cookie->expires && sessiontime)
 189                 soup_cookie_set_expires(new_cookie, soup_date_new_from_now(sessiontime));
 190         SOUP_COOKIE_JAR_CLASS(cookiejar_parent_class)->changed(self, old_cookie, new_cookie);
 191         flock(COOKIEJAR(self)->lock, LOCK_UN);
 192 }
 193
 194 static void
 195 cookiejar_class_init(CookieJarClass *klass) {
 196         SOUP_COOKIE_JAR_CLASS(klass)->changed = cookiejar_changed;
 197         G_OBJECT_CLASS(klass)->get_property = G_OBJECT_CLASS(cookiejar_parent_class)->get_property;
 198         G_OBJECT_CLASS(klass)->set_property = cookiejar_set_property;
 199         G_OBJECT_CLASS(klass)->finalize = cookiejar_finalize;
 200         g_object_class_override_property(G_OBJECT_CLASS(klass), 1, "filename");
 201 }
 202
 203 static void
 204 cookiejar_finalize(GObject *self) {
 205         close(COOKIEJAR(self)->lock);
 206         G_OBJECT_CLASS(cookiejar_parent_class)->finalize(self);
 207 }
 208
 209 static void
 210 cookiejar_init(CookieJar *self) {
 211         self->lock = open(cookiefile, 0);
 212 }
 213
 214 static SoupCookieJar *
 215 cookiejar_new(const char *filename, gboolean read_only) {
 216         return g_object_new(COOKIEJAR_TYPE,
 217                             SOUP_COOKIE_JAR_TEXT_FILENAME, filename,
 218                             SOUP_COOKIE_JAR_READ_ONLY, read_only, NULL);
 219 }
 220
 221 static void
 222 cookiejar_set_property(GObject *self, guint prop_id, const GValue *value, GParamSpec *pspec) {
 223         flock(COOKIEJAR(self)->lock, LOCK_SH);
 224         G_OBJECT_CLASS(cookiejar_parent_class)->set_property(self, prop_id, value, pspec);
 225         flock(COOKIEJAR(self)->lock, LOCK_UN);
 226 }
 227
 228 void
 229 evalscript(JSContextRef js, char *script, char* scriptname) {
 230         JSStringRef jsscript, jsscriptname;
 231         JSValueRef exception = NULL;
 232
 233         jsscript = JSStringCreateWithUTF8CString(script);
 234         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 235         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), jsscriptname, 0, &exception);
 236         JSStringRelease(jsscript);
 237         JSStringRelease(jsscriptname);
 238 }
 239
 240 void
 241 runscript(WebKitWebFrame *frame) {
 242         char *script;
 243         GError *error;
 244
 245         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 246                 evalscript(webkit_web_frame_get_global_context(frame), script, scriptfile);
 247         }
 248 }
 249
 250 void
 251 clipboard(Client *c, const Arg *arg) {
 252         gboolean paste = *(gboolean *)arg;
 253
 254         if(paste)
 255                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 256         else
 257                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 258 }
 259
 260 char *
 261 copystr(char **str, const char *src) {
 262         char *tmp;
 263         tmp = g_strdup(src);
 264
 265         if(str && *str) {
 266                 g_free(*str);
 267                 *str = tmp;
 268         }
 269         return tmp;
 270 }
 271
 272 WebKitWebView *
 273 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 274         Client *n = newclient();
 275         return n->view;
 276 }
 277
 278 gboolean
 279 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 280         if(!webkit_web_view_can_show_mime_type(v, m)) {
 281                 webkit_web_policy_decision_download(p);
 282                 return TRUE;
 283         }
 284         return FALSE;
 285 }
 286
 287 gboolean
 288 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 289         Arg arg;
 290
 291         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 292                 webkit_web_policy_decision_ignore(p);
 293                 arg.v = (void *)webkit_network_request_get_uri(r);
 294                 newwindow(NULL, &arg, 0);
 295                 return TRUE;
 296         }
 297         return FALSE;
 298 }
 299
 300 void
 301 destroyclient(Client *c) {
 302         Client *p;
 303
 304         webkit_web_view_stop_loading(c->view);
 305         gtk_widget_destroy(c->indicator);
 306         gtk_widget_destroy(GTK_WIDGET(c->view));
 307         gtk_widget_destroy(c->scroll);
 308         gtk_widget_destroy(c->vbox);
 309         gtk_widget_destroy(c->win);
 310
 311         for(p = clients; p && p->next != c; p = p->next);
 312         if(p)
 313                 p->next = c->next;
 314         else
 315                 clients = c->next;
 316         free(c);
 317         if(clients == NULL)
 318                 gtk_main_quit();
 319 }
 320
 321 void
 322 destroywin(GtkWidget* w, Client *c) {
 323         destroyclient(c);
 324 }
 325
 326 void
 327 die(char *str) {
 328         fputs(str, stderr);
 329         exit(EXIT_FAILURE);
 330 }
 331
 332 void
 333 drawindicator(Client *c) {
 334         gint width;
 335         const char *uri;
 336         GtkWidget *w;
 337         GdkGC *gc;
 338         GdkColor fg;
 339
 340         uri = geturi(c);
 341         w = c->indicator;
 342         width = c->progress * w->allocation.width / 100;
 343         gc = gdk_gc_new(w->window);
 344         if(strstr(uri, "https://") == uri)
 345                 gdk_color_parse(c->sslfailed ?
 346                                 progress_untrust : progress_trust, &fg);
 347         else
 348                 gdk_color_parse(progress, &fg);
 349         gdk_gc_set_rgb_fg_color(gc, &fg);
 350         gdk_draw_rectangle(w->window,
 351                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 352                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 353         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 354                         w->allocation.height);
 355         g_object_unref(gc);
 356 }
 357
 358 gboolean
 359 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 360         drawindicator(c);
 361         return TRUE;
 362 }
 363
 364 void
 365 find(Client *c, const Arg *arg) {
 366         const char *s;
 367
 368         s = getatom(c, AtomFind);
 369         gboolean forward = *(gboolean *)arg;
 370         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 371 }
 372
 373 const char *
 374 getatom(Client *c, int a) {
 375         static char buf[BUFSIZ];
 376         Atom adummy;
 377         int idummy;
 378         unsigned long ldummy;
 379         unsigned char *p = NULL;
 380
 381         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 382                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 383                         &adummy, &idummy, &ldummy, &ldummy, &p);
 384         if(p)
 385                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 386         else
 387                 buf[0] = '\0';
 388         XFree(p);
 389         return buf;
 390 }
 391
 392 char *
 393 geturi(Client *c) {
 394         char *uri;
 395
 396         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 397                 uri = "about:blank";
 398         return uri;
 399 }
 400
 401 gboolean
 402 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 403         Arg arg;
 404
 405         updatewinid(c);
 406         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o));
 407         spawn(c, &arg);
 408         return FALSE;
 409 }
 410
 411 gboolean
 412 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 413         guint i;
 414         gboolean processed = FALSE;
 415
 416         updatewinid(c);
 417         for(i = 0; i < LENGTH(keys); i++) {
 418                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 419                                 && (ev->state & keys[i].mod) == keys[i].mod
 420                                 && keys[i].func) {
 421                         keys[i].func(c, &(keys[i].arg));
 422                         processed = TRUE;
 423                 }
 424         }
 425         return processed;
 426 }
 427
 428 void
 429 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 430         if(l) {
 431                 c->linkhover = copystr(&c->linkhover, l);
 432         }
 433         else if(c->linkhover) {
 434                 free(c->linkhover);
 435                 c->linkhover = NULL;
 436         }
 437         update(c);
 438 }
 439
 440 void
 441 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 442         WebKitWebFrame *frame;
 443         WebKitWebDataSource *src;
 444         WebKitNetworkRequest *request;
 445         SoupMessage *msg;
 446         char *uri;
 447
 448         switch(webkit_web_view_get_load_status (c->view)) {
 449         case WEBKIT_LOAD_COMMITTED:
 450                 uri = geturi(c);
 451                 if(strstr(uri, "https://") == uri) {
 452                         frame = webkit_web_view_get_main_frame(c->view);
 453                         src = webkit_web_frame_get_data_source(frame);
 454                         request = webkit_web_data_source_get_request(src);
 455                         msg = webkit_network_request_get_message(request);
 456                         c->sslfailed = soup_message_get_flags(msg)
 457                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 458                 }
 459                 setatom(c, AtomUri, uri);
 460                 break;
 461         case WEBKIT_LOAD_FINISHED:
 462                 c->progress = 100;
 463                 update(c);
 464                 break;
 465         default:
 466                 break;
 467         }
 468 }
 469
 470 void
 471 loaduri(Client *c, const Arg *arg) {
 472         char *u;
 473         const char *uri = (char *)arg->v;
 474         Arg a = { .b = FALSE };
 475
 476         if(strcmp(uri, "") == 0)
 477                 return;
 478         u = g_strrstr(uri, "://") ? g_strdup(uri)
 479                 : g_strdup_printf("http://%s", uri);
 480         /* prevents endless loop */
 481         if(c->uri && strcmp(u, c->uri) == 0) {
 482                 reload(c, &a);
 483         }
 484         else {
 485                 webkit_web_view_load_uri(c->view, u);
 486                 c->progress = 0;
 487                 c->title = copystr(&c->title, u);
 488                 g_free(u);
 489                 update(c);
 490         }
 491 }
 492
 493 void
 494 navigate(Client *c, const Arg *arg) {
 495         int steps = *(int *)arg;
 496         webkit_web_view_go_back_or_forward(c->view, steps);
 497 }
 498
 499 Client *
 500 newclient(void) {
 501         Client *c;
 502         WebKitWebSettings *settings;
 503         WebKitWebFrame *frame;
 504         GdkGeometry hints = { 1, 1 };
 505         char *uri, *ua;
 506
 507         if(!(c = calloc(1, sizeof(Client))))
 508                 die("Cannot malloc!\n");
 509         /* Window */
 510         if(embed) {
 511                 c->win = gtk_plug_new(embed);
 512         }
 513         else {
 514                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 515                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 516                  * is always correct, so we should still call this function.
 517                  * But when doing so, we *must* differentiate between a
 518                  * WM_CLASS and a resource on the window.  By convention, the
 519                  * window class (WM_CLASS) is capped, while the resource is in
 520                  * lowercase.   Both these values come as a pair.
 521                  */
 522                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 523
 524                 /* TA:  20091214:  And set the role here as well -- so that
 525                  * sessions can pick this up.
 526                  */
 527                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 528         }
 529         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 530         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 531         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 532
 533         /* VBox */
 534         c->vbox = gtk_vbox_new(FALSE, 0);
 535
 536         /* Scrolled Window */
 537         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 538         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 539                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 540
 541         /* Webview */
 542         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 543         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 544         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 545         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 546         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 547         g_signal_connect(G_OBJECT(c->view), "mime-type-policy-decision-requested", G_CALLBACK(decidedownload), c);
 548         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 549         g_signal_connect(G_OBJECT(c->view), "notify::load-status", G_CALLBACK(loadstatuschange), c);
 550         g_signal_connect(G_OBJECT(c->view), "notify::progress", G_CALLBACK(progresschange), c);
 551         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 552         g_signal_connect(G_OBJECT(c->view), "button-release-event", G_CALLBACK(buttonrelease), c);
 553         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(populatepopup), c);
 554
 555         /* Indicator */
 556         c->indicator = gtk_drawing_area_new();
 557         gtk_widget_set_size_request(c->indicator, 0, 2);
 558         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 559                         G_CALLBACK (exposeindicator), c);
 560
 561         /* Arranging */
 562         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 563         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 564         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 565         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 566
 567         /* Setup */
 568         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 569         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 570         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 571         gtk_widget_show(c->vbox);
 572         gtk_widget_show(c->indicator);
 573         gtk_widget_show(c->scroll);
 574         gtk_widget_show(GTK_WIDGET(c->view));
 575         gtk_widget_show(c->win);
 576         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 577         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 578         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 579         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 580         frame = webkit_web_view_get_main_frame(c->view);
 581         runscript(frame);
 582         settings = webkit_web_view_get_settings(c->view);
 583         if(!(ua = getenv("SURF_USERAGENT")))
 584                 ua = useragent;
 585         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 586         uri = g_strconcat("file://", stylefile, NULL);
 587         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 588         g_object_set(G_OBJECT(settings), "auto-load-images", loadimage, NULL);
 589         g_object_set(G_OBJECT(settings), "enable-plugins", plugin, NULL);
 590         g_object_set(G_OBJECT(settings), "enable-scripts", script, NULL);
 591         g_object_set(G_OBJECT(settings), "enable-spatial-navigation", SPATIAL_BROWSING, NULL);
 592
 593         g_free(uri);
 594
 595         setatom(c, AtomFind, "");
 596         setatom(c, AtomUri, "about:blank");
 597         if(HIDE_BACKGROUND)
 598                 webkit_web_view_set_transparent(c->view, TRUE);
 599
 600         c->title = NULL;
 601         c->next = clients;
 602         clients = c;
 603         if(showxid) {
 604                 gdk_display_sync(gtk_widget_get_display(c->win));
 605                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 606                 fflush(NULL);
 607                 if (fclose(stdout) != 0) {
 608                         die("Error closing stdout");
 609                 }
 610         }
 611         return c;
 612 }
 613
 614 void
 615 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 616         guint i = 0;
 617         const char *cmd[10], *uri;
 618         const Arg a = { .v = (void *)cmd };
 619         char tmp[64];
 620
 621         cmd[i++] = progname;
 622         if(embed && !noembed) {
 623                 cmd[i++] = "-e";
 624                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 625                 cmd[i++] = tmp;
 626         }
 627         if(!script)
 628                 cmd[i++] = "-s";
 629         if(!plugin)
 630                 cmd[i++] = "-p";
 631         if(!loadimage)
 632                 cmd[i++] = "-i";
 633         if(showxid)
 634                 cmd[i++] = "-x";
 635         cmd[i++] = "--";
 636         uri = arg->v ? (char *)arg->v : c->linkhover;
 637         if(uri)
 638                 cmd[i++] = uri;
 639         cmd[i++] = NULL;
 640         spawn(NULL, &a);
 641 }
 642
 643 static void
 644 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c) {
 645         GList *items = gtk_container_get_children(GTK_CONTAINER(menu));
 646
 647         for(GList *l = items; l; l = l->next) {
 648                 g_signal_connect(l->data, "activate", G_CALLBACK(popupactivate), c);
 649         }
 650
 651         g_list_free(items);
 652 }
 653
 654 static void
 655 popupactivate(GtkMenuItem *menu, Client *c) {
 656         /*
 657          * context-menu-action-2000     open link
 658          * context-menu-action-1        open link in window
 659          * context-menu-action-2        download linked file
 660          * context-menu-action-3        copy link location
 661          * context-menu-action-13       reload
 662          * context-menu-action-10       back
 663          * context-menu-action-11       forward
 664          * context-menu-action-12       stop
 665          */
 666
 667         GtkAction *a = NULL;
 668         const char *name;
 669         GtkClipboard *prisel;
 670
 671         a = gtk_activatable_get_related_action(GTK_ACTIVATABLE(menu));
 672         if(a == NULL)
 673                 return;
 674
 675         name = gtk_action_get_name(a);
 676         if(!g_strcmp0(name, "context-menu-action-3")) {
 677                 prisel = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 678                 gtk_clipboard_set_text(prisel, c->linkhover, -1);
 679         }
 680 }
 681
 682 void
 683 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 684         Arg arg = {.v = text };
 685         if(text != NULL)
 686                 loaduri((Client *) d, &arg);
 687 }
 688
 689 void
 690 print(Client *c, const Arg *arg) {
 691         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 692 }
 693
 694 GdkFilterReturn
 695 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 696         Client *c = (Client *)d;
 697         XPropertyEvent *ev;
 698         Arg arg;
 699
 700         if(((XEvent *)e)->type == PropertyNotify) {
 701                 ev = &((XEvent *)e)->xproperty;
 702                 if(ev->state == PropertyNewValue) {
 703                         if(ev->atom == atoms[AtomFind]) {
 704                                 arg.b = TRUE;
 705                                 find(c, &arg);
 706                                 return GDK_FILTER_REMOVE;
 707                         }
 708                         else if(ev->atom == atoms[AtomGo]) {
 709                                 arg.v = getatom(c, AtomGo);
 710                                 loaduri(c, &arg);
 711                                 return GDK_FILTER_REMOVE;
 712                         }
 713                 }
 714         }
 715         return GDK_FILTER_CONTINUE;
 716 }
 717
 718 void
 719 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 720         c->progress = webkit_web_view_get_progress(c->view) * 100;
 721         update(c);
 722 }
 723
 724 void
 725 reload(Client *c, const Arg *arg) {
 726         gboolean nocache = *(gboolean *)arg;
 727         if(nocache)
 728                  webkit_web_view_reload_bypass_cache(c->view);
 729         else
 730                  webkit_web_view_reload(c->view);
 731 }
 732
 733 void
 734 scroll_h(Client *c, const Arg *arg) {
 735         scroll(gtk_scrolled_window_get_hadjustment(
 736                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 737 }
 738
 739 void
 740 scroll_v(Client *c, const Arg *arg) {
 741         scroll(gtk_scrolled_window_get_vadjustment(
 742                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 743 }
 744
 745 void
 746 scroll(GtkAdjustment *a, const Arg *arg) {
 747         gdouble v;
 748
 749         v = gtk_adjustment_get_value(a);
 750         switch (arg->i){
 751         case +10000:
 752         case -10000:
 753                 v += gtk_adjustment_get_page_increment(a) *
 754                         (arg->i / 10000);
 755                 break;
 756         case +20000:
 757         case -20000:
 758         default:
 759                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 760         }
 761
 762         v = MAX(v, 0.0);
 763         v = MIN(v, gtk_adjustment_get_upper(a) -
 764                         gtk_adjustment_get_page_size(a));
 765         gtk_adjustment_set_value(a, v);
 766 }
 767
 768 void
 769 setatom(Client *c, int a, const char *v) {
 770         XSync(dpy, False);
 771         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), atoms[a],
 772                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 773                         strlen(v) + 1);
 774 }
 775
 776 void
 777 setup(void) {
 778         char *proxy;
 779         char *new_proxy;
 780         SoupURI *puri;
 781         SoupSession *s;
 782
 783         /* clean up any zombies immediately */
 784         sigchld(0);
 785         gtk_init(NULL, NULL);
 786         if (!g_thread_supported())
 787                 g_thread_init(NULL);
 788
 789         dpy = GDK_DISPLAY();
 790
 791         /* atoms */
 792         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 793         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 794         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 795
 796         /* dirs and files */
 797         cookiefile = buildpath(cookiefile);
 798         scriptfile = buildpath(scriptfile);
 799         stylefile = buildpath(stylefile);
 800
 801         /* request handler */
 802         s = webkit_get_default_session();
 803
 804         /* cookie jar */
 805         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar_new(cookiefile, FALSE)));
 806
 807         /* ssl */
 808         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
 809         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
 810
 811         /* proxy */
 812         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 813                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 814                         g_strdup_printf("http://%s", proxy);
 815                 puri = soup_uri_new(new_proxy);
 816                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 817                 soup_uri_free(puri);
 818                 g_free(new_proxy);
 819         }
 820 }
 821
 822 void
 823 sigchld(int unused) {
 824         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 825                 die("Can't install SIGCHLD handler");
 826         while(0 < waitpid(-1, NULL, WNOHANG));
 827 }
 828
 829 void
 830 source(Client *c, const Arg *arg) {
 831         Arg a = { .b = FALSE };
 832         gboolean s;
 833
 834         s = webkit_web_view_get_view_source_mode(c->view);
 835         webkit_web_view_set_view_source_mode(c->view, !s);
 836         reload(c, &a);
 837 }
 838
 839 void
 840 spawn(Client *c, const Arg *arg) {
 841         if(fork() == 0) {
 842                 if(dpy)
 843                         close(ConnectionNumber(dpy));
 844                 setsid();
 845                 execvp(((char **)arg->v)[0], (char **)arg->v);
 846                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 847                 perror(" failed");
 848                 exit(0);
 849         }
 850 }
 851
 852 void
 853 eval(Client *c, const Arg *arg) {
 854         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
 855         evalscript(webkit_web_frame_get_global_context(frame),
 856                         ((char **)arg->v)[0], "");
 857 }
 858
 859 void
 860 stop(Client *c, const Arg *arg) {
 861         webkit_web_view_stop_loading(c->view);
 862 }
 863
 864 void
 865 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 866         c->title = copystr(&c->title, t);
 867         update(c);
 868 }
 869
 870 void
 871 update(Client *c) {
 872         char *t;
 873
 874         if(c->linkhover) {
 875                 t = g_strdup(c->linkhover);
 876         } else if(c->progress != 100) {
 877                 drawindicator(c);
 878                 gtk_widget_show(c->indicator);
 879                 t = g_strdup_printf("[%i%%] %s", c->progress, c->title);
 880         } else {
 881                 gtk_widget_hide_all(c->indicator);
 882                 t = g_strdup(c->title);
 883         }
 884         gtk_window_set_title(GTK_WINDOW(c->win), t);
 885         g_free(t);
 886 }
 887
 888 void
 889 updatewinid(Client *c) {
 890         snprintf(winid, LENGTH(winid), "%u",
 891                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 892 }
 893
 894 void
 895 usage(void) {
 896         fputs("surf - simple browser\n", stderr);
 897         die("usage: surf [-e xid] [-i] [-p] [-s] [-v] [-x] [uri]\n");
 898 }
 899
 900 void
 901 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 902         runscript(frame);
 903 }
 904
 905 void
 906 zoom(Client *c, const Arg *arg) {
 907         c->zoomed = TRUE;
 908         if(arg->i < 0)          /* zoom out */
 909                 webkit_web_view_zoom_out(c->view);
 910         else if(arg->i > 0)     /* zoom in */
 911                 webkit_web_view_zoom_in(c->view);
 912         else {                  /* reset */
 913                 c->zoomed = FALSE;
 914                 webkit_web_view_set_zoom_level(c->view, 1.0);
 915         }
 916 }
 917
 918 int
 919 main(int argc, char *argv[]) {
 920         int i;
 921         Arg arg;
 922
 923         progname = argv[0];
 924         /* command line args */
 925         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-' &&
 926                         argv[i][1] != '\0' && argv[i][2] == '\0'; i++) {
 927                 if(!strcmp(argv[i], "--")) {
 928                         i++;
 929                         break;
 930                 }
 931                 switch(argv[i][1]) {
 932                 case 'e':
 933                         if(++i < argc)
 934                                 embed = strtol(argv[i], NULL, 0);
 935                         else
 936                                 usage();
 937                         break;
 938                 case 'i':
 939                         loadimage = 0;
 940                         break;
 941                 case 'p':
 942                         plugin = 0;
 943                         break;
 944                 case 's':
 945                         script = 0;
 946                         break;
 947                 case 'x':
 948                         showxid = TRUE;
 949                         break;
 950                 case 'v':
 951                         die("surf-"VERSION", ©2009-2012 surf engineers, see LICENSE for details\n");
 952                 default:
 953                         usage();
 954                 }
 955         }
 956         if(i < argc)
 957                 arg.v = argv[i];
 958         setup();
 959         newclient();
 960         if(arg.v)
 961                 loaduri(clients, &arg);
 962         gtk_main();
 963         cleanup();
 964         return EXIT_SUCCESS;
 965 }