/* See LICENSE file for copyright and license details.

*

* To understand surf, start reading main().

*/

#include <X11/X.h>

#include <X11/Xatom.h>

#include <gtk/gtk.h>

#include <gdk/gdkx.h>

#include <gdk/gdk.h>

#include <gdk/gdkkeysyms.h>

#include <string.h>

#include <unistd.h>

#include <getopt.h>

#include <stdlib.h>

#include <stdio.h>

#include <webkit/webkit.h>

#define LENGTH(x) (sizeof x / sizeof x[0])

Display *dpy;

Atom urlprop;

typedef struct Client {

} Client;

SoupCookieJar *cookiejar;

Client *clients = NULL;

gboolean embed = FALSE;

gboolean showxid = FALSE;

gboolean ignore_once = FALSE;

extern char *optarg;

extern int optind;

static void cleanup(void);

static gboolean decidewindow(WebKitWebView *view, WebKitWebFrame *f,

WebKitNetworkRequest *r, WebKitWebNavigationAction *n,

WebKitWebPolicyDecision *p, gpointer d);

static void destroyclient(Client *c);

static void destroywin(GtkWidget* w, gpointer d);

static void die(char *str);

static gboolean download(WebKitWebView *view, WebKitDownload *o, gpointer d);

static gchar *geturi(Client *c);

static void hidesearch(Client *c);

static void hideurl(Client *c);

static gboolean keypress(GtkWidget* w, GdkEventKey *ev, gpointer d);

static void linkhover(WebKitWebView* page, const gchar* t, const gchar* l, gpointer d);

static void loadcommit(WebKitWebView *view, WebKitWebFrame *f, gpointer d);

static void loadfile(const Client *c, const gchar *f);

static void loaduri(const Client *c, const gchar *uri);

static Client *newclient();

static WebKitWebView *newwindow(WebKitWebView *v, WebKitWebFrame *f, gpointer d);

static void progresschange(WebKitWebView *view, gint p, gpointer d);

static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer data);

static void setup(void);

static void showsearch(Client *c);

static void showurl(Client *c);

static void titlechange(WebKitWebView* view, WebKitWebFrame* frame, const gchar* title, gpointer d);

static void updatetitle(Client *c);

void

cleanup(void) {

while(clients)

destroyclient(clients);

}

gboolean

decidewindow(WebKitWebView *view, WebKitWebFrame *f,

WebKitNetworkRequest *r, WebKitWebNavigationAction *n,

WebKitWebPolicyDecision *p, gpointer d) {

/* TODO */

return TRUE;

}

void

destroyclient(Client *c) {

Client *p;

gtk_widget_destroy(GTK_WIDGET(webkit_web_view_new()));

gtk_widget_destroy(c->scroll);

gtk_widget_destroy(c->urlbar);

gtk_widget_destroy(c->urllist);

gtk_widget_destroy(c->searchbar);

gtk_widget_destroy(c->vbox);

gtk_widget_destroy(c->win);

for(p = clients; p && p->next != c; p = p->next);

if(p)

p->next = c->next;

else

clients = c->next;

free(c);

if(clients == NULL)

gtk_main_quit();

}

void

destroywin(GtkWidget* w, gpointer d) {

Client *c = (Client *)d;

destroyclient(c);

}

void die(char *str) {

fputs(str, stderr);

exit(EXIT_FAILURE);

}

gboolean

download(WebKitWebView *view, WebKitDownload *o, gpointer d) {

/* TODO */

const gchar *home;

gchar *uri, *filename;

home = g_get_home_dir();

filename = g_build_filename(home, "Desktop",

webkit_download_get_suggested_filename(o), NULL);

uri = g_strconcat("file://", filename, NULL);

webkit_download_set_destination_uri(o, uri);

g_free(filename);

g_free(uri);

webkit_download_start(o);

return TRUE;

}

gchar *

geturi(Client *c) {

gchar *uri;

if(!(uri = (gchar *)webkit_web_view_get_uri(c->view)))

uri = g_strdup("about:blank");

return uri;

}

void

hidesearch(Client *c) {

gtk_widget_hide(c->searchbar);

gtk_widget_grab_focus(GTK_WIDGET(c->view));

}

void

hideurl(Client *c) {

gtk_widget_hide(c->urlbar);

gtk_widget_grab_focus(GTK_WIDGET(c->view));

}

gboolean

keypress(GtkWidget* w, GdkEventKey *ev, gpointer d) {

Client *c = (Client *)d;

if(ev->type != GDK_KEY_PRESS)

return FALSE;

if(GTK_WIDGET_HAS_FOCUS(c->searchbar)) {

switch(ev->keyval) {

case GDK_Escape:

hidesearch(c);

return TRUE;

case GDK_Return:

webkit_web_view_search_text(c->view,

gtk_entry_get_text(GTK_ENTRY(c->searchbar)),

FALSE,

!(ev->state & GDK_SHIFT_MASK),

TRUE);

return TRUE;

case GDK_Left:

case GDK_Right:

case GDK_r:

return FALSE;

}

}

else if(GTK_WIDGET_HAS_FOCUS(c->urlbar)) {

switch(ev->keyval) {

case GDK_Escape:

hideurl(c);

return TRUE;

case GDK_Return:

loaduri(c, gtk_entry_get_text(GTK_ENTRY(c->urlbar)));

hideurl(c);

return TRUE;

case GDK_Left:

case GDK_Right:

case GDK_r:

return FALSE;

}

}

else if(ev->state == GDK_CONTROL_MASK || ev->state == (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) {

switch(ev->keyval) {

case GDK_r:

case GDK_R:

if((ev->state & GDK_SHIFT_MASK))

webkit_web_view_reload_bypass_cache(c->view);

else

webkit_web_view_reload(c->view);

return TRUE;

case GDK_b:

return TRUE;

case GDK_g:

showurl(c);

return TRUE;

case GDK_slash:

showsearch(c);

return TRUE;

case GDK_Left:

webkit_web_view_go_back(c->view);

return TRUE;

case GDK_Right:

webkit_web_view_go_forward(c->view);

return TRUE;

}

}

else {

switch(ev->keyval) {

case GDK_k:

webkit_web_view_move_cursor(c->view, GTK_MOVEMENT_DISPLAY_LINES, -1);

return TRUE;

case GDK_j:

webkit_web_view_move_cursor(c->view, GTK_MOVEMENT_DISPLAY_LINES, 1);

return TRUE;

}

}

return FALSE;

}

void

linkhover(WebKitWebView* page, const gchar* t, const gchar* l, gpointer d) {

Client *c = (Client *)d;

if(l)

gtk_window_set_title(GTK_WINDOW(c->win), l);

else

updatetitle(c);

}

void

loadcommit(WebKitWebView *view, WebKitWebFrame *f, gpointer d) {

Client *c = (Client *)d;

gchar *uri;

uri = geturi(c);

ignore_once = TRUE;

XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), urlprop,

XA_STRING, 8, PropModeReplace, (unsigned char *)uri,

strlen(uri) + 1);

}

void

loadfile(const Client *c, const gchar *f) {

GIOChannel *chan = NULL;

GError *e = NULL;

GString *code = g_string_new("");

GString *uri = g_string_new(f);

gchar *line;

if(strcmp(f, "-") == 0) {

chan = g_io_channel_unix_new(STDIN_FILENO);

if (chan) {

while(g_io_channel_read_line(chan, &line, NULL, NULL, &e) == G_IO_STATUS_NORMAL) {

g_string_append(code, line);

g_free(line);

}

webkit_web_view_load_html_string(c->view, code->str, NULL);

g_io_channel_shutdown(chan, FALSE, NULL);

}

}

else {

g_string_prepend(uri, "file://");

loaduri(c, uri->str);

}

}

void

loaduri(const Client *c, const gchar *uri) {

GString* u = g_string_new(uri);

if(g_strrstr(u->str, ":") == NULL)

g_string_prepend(u, "http://");

webkit_web_view_load_uri(c->view, u->str);

g_string_free(u, TRUE);

}

Client *

newclient(void) {

Client *c;

if(!(c = calloc(1, sizeof(Client))))

die("Cannot malloc!\n");

/* Window */

if(embed) {

c->win = gtk_plug_new(0);

}

else {

c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);

gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");

}

gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);

g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);

g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);

/* VBox */

c->vbox = gtk_vbox_new(FALSE, 0);

/* scrolled window */

c->scroll = gtk_scrolled_window_new(NULL, NULL);

gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),

GTK_POLICY_NEVER, GTK_POLICY_NEVER);

/* webview */

c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());

g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);

g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);

g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);

g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);

g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(newwindow), c);

g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);

g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(download), c);

/* urlbar */

c->urlbar = gtk_entry_new();

gtk_entry_set_has_frame(GTK_ENTRY(c->urlbar), FALSE);

/* searchbar */

c->searchbar = gtk_entry_new();

gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);

/* Arranging */

gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));

gtk_container_add(GTK_CONTAINER(c->win), c->vbox);

gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);

gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);

gtk_container_add(GTK_CONTAINER(c->vbox), c->urlbar);

/* Setup */

gtk_box_set_child_packing(GTK_BOX(c->vbox), c->urlbar, FALSE, FALSE, 0, GTK_PACK_START);

gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);

gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);

gtk_widget_grab_focus(GTK_WIDGET(c->view));

gtk_widget_hide_all(c->searchbar);

gtk_widget_hide_all(c->urlbar);

gtk_widget_show(c->vbox);

gtk_widget_show(c->scroll);

gtk_widget_show(GTK_WIDGET(c->view));

gtk_widget_show(c->win);

gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);

gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);

c->next = clients;

clients = c;

if(showxid)

printf("%u\n", (unsigned int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));

return c;

}

WebKitWebView *

newwindow(WebKitWebView *v, WebKitWebFrame *f, gpointer d) {

/* TODO */

Client *c = newclient();

return c->view;

}

void

progresschange(WebKitWebView* view, gint p, gpointer d) {

Client *c = (Client *)d;

c->progress = p;

updatetitle(c);

}

GdkFilterReturn

processx(GdkXEvent *e, GdkEvent *event, gpointer d) {

XPropertyEvent *ev;

Client *c = (Client *)d;

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(c, (gchar *)buf);

XFree(buf);

return GDK_FILTER_REMOVE;

}

}

return GDK_FILTER_CONTINUE;

}

void setup(void) {

dpy = GDK_DISPLAY();

urlprop = XInternAtom(dpy, "_SURF_URL", False);

}

void

showsearch(Client *c) {

hideurl(c);

gtk_widget_show(c->searchbar);

gtk_widget_grab_focus(c->searchbar);

}

void

showurl(Client *c) {

gchar *uri;

hidesearch(c);

uri = geturi(c);

gtk_entry_set_text(GTK_ENTRY(c->urlbar), uri);

gtk_widget_show(c->urlbar);

gtk_widget_grab_focus(c->urlbar);

}

void

titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, gpointer d) {

Client *c = (Client *)d;

if(c->title)

g_free(c->title);

c->title = g_strdup(t);

updatetitle(c);

}

void

updatetitle(Client *c) {

char t[512];

if(c->progress == 100)

snprintf(t, LENGTH(t), "%s", c->title);

else

snprintf(t, LENGTH(t), "%s [%i%%]", c->title, c->progress);

gtk_window_set_title(GTK_WINDOW(c->win), t);

}

int main(int argc, char *argv[]) {

gchar *uri = NULL, *file = NULL;

SoupSession *s;

Client *c;

int o;

const gchar *home, *filename;

gtk_init(NULL, NULL);

if (!g_thread_supported())

g_thread_init(NULL);

setup();

while((o = getopt(argc, argv, "vhxeu:f:")) != -1)

switch(o) {

case 'x':

showxid = TRUE;

break;

case 'e':

showxid = TRUE;

embed = TRUE;

break;

case 'u':

if(!(uri = optarg))

goto argerr;

c = newclient();

loaduri(c, uri);

updatetitle(c);

break;

case 'f':

if(!(file = optarg))

goto argerr;

c = newclient();

loadfile(c, file);

updatetitle(c);

break;

case 'v':

die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");

break;

argerr:

default:

puts("surf - simple browser");

die("usage: surf [-e] [-x] [-u uri] [-f file]\n");

return EXIT_FAILURE;

}

if(optind != argc)

goto argerr;

if(!clients)

newclient();

/* cookie persistance */

s = webkit_get_default_session();

home = g_get_home_dir();

filename = g_build_filename(home, ".surf-cookies", NULL);

cookiejar = soup_cookie_jar_text_new(filename, FALSE);

soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));

gtk_main();

cleanup();

return EXIT_SUCCESS;

}