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#include <X11/X.h>
#include <X11/Xatom.h>
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <gdk/gdk.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <webkit/webkit.h>
#define LENGTH(x) (sizeof x / sizeof x[0])
/* Plan9-style Argument parsing */
/* Vars: _c -> count; _b -> break; _a -> argument */
#define ARG int _c, _b; char *_a; \
for(_c = 1; _c < argc && argv[_c][0] == '-' && argv[_c][1] && \
(strcmp(argv[_c], "--") != 0); _c++) \
for(_a = &argv[_c][1], _b = 0; !_b && *_a; _a++ ) \
switch(*_a)
#define ARGVAL() (!_b && _a[1] && (_b = 1) ? &_a[1] : _c + 1 == argc ? \
0 : argv[++_c])
#define ARGCHR() (*_a)
#define ARGC() _c
Display *dpy;
Atom urlprop;
GtkWidget *win;
GtkWidget *browser;
WebKitWebView *view;
gchar *title;
gint progress = 100;
gboolean embed = FALSE;
gboolean showxid = FALSE;
gboolean ignore_once = FALSE;
static void setup(void);
static void cleanup(void);
static void updatetitle(void);
static void windestroy(GtkWidget* w, gpointer d);
static gboolean keypress(GtkWidget* w, GdkEventKey *ev);
static void titlechange(WebKitWebView* view, WebKitWebFrame* frame, const gchar* title, gpointer d);
static void progresschange(WebKitWebView *view, gint p, gpointer d);
static void loadcommit(WebKitWebView *view, WebKitWebFrame *f, gpointer d);
static void loadstart(WebKitWebView *view, WebKitWebFrame *f, gpointer d);
static void loadfinish(WebKitWebView *view, WebKitWebFrame *f, gpointer d);
static void linkhover(WebKitWebView* page, const gchar* t, const gchar* l, gpointer d);
static gboolean newwindow(WebKitWebView *view, WebKitWebFrame *f,
WebKitNetworkRequest *r, WebKitWebNavigationAction *n,
WebKitWebPolicyDecision *p, gpointer d);
static gboolean download(WebKitWebView *view, GObject *o, gpointer d);
static void loaduri(gchar *uri);
static void loadfile(gchar *f);
static void setupx();
GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer data);
GdkFilterReturn
processx(GdkXEvent *e, GdkEvent *event, gpointer data) {
XPropertyEvent *ev;
Atom adummy;
int idummy;
unsigned long ldummy;
unsigned char *buf = NULL;
if(((XEvent *)e)->type == PropertyNotify) {
ev = &((XEvent *)e)->xproperty;
if(ignore_once == FALSE && ev->atom == urlprop && ev->state == PropertyNewValue) {
XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
&adummy, &idummy, &ldummy, &ldummy, &buf);
loaduri((gchar *)buf);
XFree(buf);
return GDK_FILTER_REMOVE;
}
ignore_once = FALSE;
}
return GDK_FILTER_CONTINUE;
}
void
setupx() {
dpy = GDK_WINDOW_XDISPLAY(GTK_WIDGET(win)->window);
urlprop = XInternAtom(dpy, "_SURF_URL", False);
gdk_window_add_filter(GTK_WIDGET(win)->window, processx, NULL);
gdk_window_set_events(GTK_WIDGET(win)->window, GDK_ALL_EVENTS_MASK);
}
void
loadfile(gchar *f) {
GIOChannel *c = NULL;
GError *e = NULL;
GString *code = g_string_new("");
GString *uri = g_string_new(f);
gchar *line;
/* cannot use fileno in c99 - workaround*/
if(strcmp(f, "-") == 0) {
c = g_io_channel_unix_new(STDIN_FILENO);
if (c) {
while(g_io_channel_read_line(c, &line, NULL, NULL, &e) == G_IO_STATUS_NORMAL) {
g_string_append(code, line);
g_free(line);
}
webkit_web_view_load_html_string(view, code->str, NULL);
g_io_channel_shutdown(c, FALSE, NULL);
}
}
else {
g_string_prepend(uri, "file://");
loaduri(uri->str);
}
}
static void loaduri(gchar *uri) {
GString* u = g_string_new(uri);
if(g_strrstr(u->str, "://") == NULL)
g_string_prepend(u, "http://");
webkit_web_view_load_uri(view, u->str);
g_string_free(u, TRUE);
}
gboolean
download(WebKitWebView *view, GObject *o, gpointer d) {
/* TODO */
return FALSE;
}
gboolean
newwindow(WebKitWebView *view, WebKitWebFrame *f,
WebKitNetworkRequest *r, WebKitWebNavigationAction *n,
WebKitWebPolicyDecision *p, gpointer d) {
/* TODO */
return FALSE;
}
void
linkhover(WebKitWebView* page, const gchar* t, const gchar* l, gpointer d) {
/* TODO */
}
void
loadcommit(WebKitWebView *view, WebKitWebFrame *f, gpointer d) {
gchar *uri;
if(!(uri = (gchar *)webkit_web_view_get_uri(view)))
uri = "(null)";
ignore_once = TRUE;
XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(win)->window), urlprop,
XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
strlen(uri) + 1);
}
void
progresschange(WebKitWebView* view, gint p, gpointer d) {
progress = p;
updatetitle();
}
void
updatetitle() {
char t[512];
if(progress == 100)
snprintf(t, LENGTH(t), "%s", title);
else
snprintf(t, LENGTH(t), "%s [%i%%]", title, progress);
gtk_window_set_title(GTK_WINDOW(win), t);
}
void
titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, gpointer d) {
if(title)
g_free(title);
title = g_strdup(t);
updatetitle();
}
void
windestroy(GtkWidget* w, gpointer d) {
gtk_main_quit();
}
gboolean
keypress(GtkWidget* w, GdkEventKey *ev) {
/* TODO */
return FALSE;
}
void setup(void) {
if(embed) {
win = gtk_plug_new(0);
}
else {
win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_wmclass(GTK_WINDOW(win), "surf", "surf");
}
gtk_window_set_default_size(GTK_WINDOW(win), 800, 600);
browser = gtk_scrolled_window_new(NULL, NULL);
g_signal_connect (G_OBJECT(win), "destroy", G_CALLBACK(windestroy), NULL);
g_signal_connect (G_OBJECT(win), "key-press-event", G_CALLBACK(keypress), NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(browser),
GTK_POLICY_NEVER, GTK_POLICY_NEVER);
view = WEBKIT_WEB_VIEW(webkit_web_view_new());
gtk_container_add(GTK_CONTAINER(browser), GTK_WIDGET(view));
g_signal_connect(G_OBJECT(view), "title-changed", G_CALLBACK(titlechange), view);
g_signal_connect(G_OBJECT(view), "load-progress-changed", G_CALLBACK(progresschange), view);
g_signal_connect(G_OBJECT(view), "load-committed", G_CALLBACK(loadcommit), view);
g_signal_connect(G_OBJECT(view), "hovering-over-link", G_CALLBACK(linkhover), view);
g_signal_connect(G_OBJECT(view), "new-window-policy-decision-requested", G_CALLBACK(newwindow), view);
g_signal_connect(G_OBJECT(view), "download-requested", G_CALLBACK(download), view);
/* g_signal_connect(G_OBJECT(view), "create-web-view", G_CALLBACK(createwebview), view); */
gtk_container_add(GTK_CONTAINER(win), browser);
gtk_widget_grab_focus(GTK_WIDGET(view));
gtk_widget_show_all(win);
if(showxid)
printf("%u\n", (unsigned int)GDK_WINDOW_XID(GTK_WIDGET(win)->window));
}
void cleanup() {
}
int main(int argc, char *argv[]) {
gchar *uri = NULL, *file = NULL;
ARG {
case 'x':
showxid = TRUE;
break;
case 'e':
showxid = TRUE;
embed = TRUE;
break;
case 'u':
if(!(uri = ARGVAL()))
goto argerr;
break;
case 'f':
if(!(file = ARGVAL()))
goto argerr;
break;
argerr:
default:
puts("surf - simple browser");
printf("usage: %s [-e] [-u uri] [-f file]", argv[0]);
return EXIT_FAILURE;
}
if(argc != ARGC())
goto argerr;
gtk_init(NULL, NULL);
if (!g_thread_supported())
g_thread_init(NULL);
setup();
setupx();
if(uri)
loaduri(uri);
else if(file)
loadfile(file);
updatetitle();
gtk_main();
cleanup();
return EXIT_SUCCESS;
}
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