surf/surf.c

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/* See LICENSE file for copyright and license details.
*
* To understand surf, start reading main().
*/
#include <X11/X.h>
#include <X11/Xatom.h>
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#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <gdk/gdk.h>
#include <gdk/gdkkeysyms.h>
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#include <string.h>
#include <unistd.h>
#include <getopt.h>
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#include <stdlib.h>
#include <stdio.h>
#include <webkit/webkit.h>
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#include <glib/gstdio.h>
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#define LENGTH(x) (sizeof x / sizeof x[0])
Display *dpy;
Atom urlprop;
typedef struct Client {
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GtkWidget *win, *scroll, *vbox, *urlbar, *searchbar;
WebKitWebView *view;
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WebKitDownload *download;
gchar *title;
gint progress;
struct Client *next;
} Client;
SoupCookieJar *cookiejar;
Client *clients = NULL;
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gboolean embed = FALSE;
gboolean showxid = FALSE;
gboolean ignore_once = FALSE;
extern char *optarg;
extern int optind;
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static void cleanup(void);
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static void destroyclient(Client *c);
static void destroywin(GtkWidget* w, Client *c);
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static void die(char *str);
static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
static gboolean initdownload(WebKitWebView *view, WebKitDownload *o, Client *c);
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static gchar *geturi(Client *c);
static void hidesearch(Client *c);
static void hideurl(Client *c);
static gboolean keypress(GtkWidget* w, GdkEventKey *ev, Client *c);
static void linkhover(WebKitWebView* page, const gchar* t, const gchar* l, Client *c);
static void loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c);
static void loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c);
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static void loadfile(Client *c, const gchar *f);
static void loaduri(Client *c, const gchar *uri);
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static Client *newclient();
static WebKitWebView *newwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
static void progresschange(WebKitWebView *view, gint p, Client *c);
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static void setup(void);
static void showsearch(Client *c);
static void showurl(Client *c);
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static void stop(Client *c);
static void titlechange(WebKitWebView* view, WebKitWebFrame* frame, const gchar* title, Client *c);
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static void usage();
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static void updatetitle(Client *c, const gchar *title);
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void
cleanup(void) {
while(clients)
destroyclient(clients);
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}
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void
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destroyclient(Client *c) {
Client *p;
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gtk_widget_destroy(GTK_WIDGET(webkit_web_view_new()));
gtk_widget_destroy(c->scroll);
gtk_widget_destroy(c->urlbar);
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
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clients = c->next;
free(c);
if(clients == NULL)
gtk_main_quit();
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}
void
destroywin(GtkWidget* w, Client *c) {
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destroyclient(c);
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}
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void
die(char *str) {
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fputs(str, stderr);
exit(EXIT_FAILURE);
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}
void
download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
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WebKitDownloadStatus status;
status = webkit_download_get_status(c->download);
if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
c->progress = (int)(webkit_download_get_progress(c->download)*100);
}
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else {
stop(c);
}
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updatetitle(c, NULL);
}
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gboolean
initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
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const gchar *home, *filename;
gchar *uri, *path, *html;
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stop(c);
c->download = o;
home = g_get_home_dir();
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filename = webkit_download_get_suggested_filename(o);
path = g_build_filename(home, ".surf", "dl",
filename, NULL);
uri = g_strconcat("file://", path, NULL);
webkit_download_set_destination_uri(c->download, uri);
c->progress = 0;
g_free(uri);
html = g_strdup_printf("Download <b>%s</b>...", filename);
webkit_web_view_load_html_string(c->view, html,
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webkit_download_get_uri(c->download));
g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
webkit_download_start(c->download);
updatetitle(c, filename);
g_free(html);
return TRUE;
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}
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gchar *
geturi(Client *c) {
gchar *uri;
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if(!(uri = (gchar *)webkit_web_view_get_uri(c->view)))
uri = g_strdup("about:blank");
return uri;
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}
void
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hidesearch(Client *c) {
gtk_widget_hide(c->searchbar);
gtk_widget_grab_focus(GTK_WIDGET(c->view));
}
void
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hideurl(Client *c) {
gtk_widget_hide(c->urlbar);
gtk_widget_grab_focus(GTK_WIDGET(c->view));
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}
gboolean
keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
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if(ev->type != GDK_KEY_PRESS)
return FALSE;
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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:
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:
return FALSE;
}
}
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if(ev->state & GDK_CONTROL_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;
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case GDK_g:
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showurl(c);
return TRUE;
case GDK_slash:
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showsearch(c);
return TRUE;
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case GDK_plus:
case GDK_equal:
webkit_web_view_zoom_in(c->view);
return TRUE;
case GDK_minus:
webkit_web_view_zoom_out(c->view);
return TRUE;
case GDK_0:
webkit_web_view_set_zoom_level(c->view, 1.0);
return TRUE;
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case GDK_n:
case GDK_N:
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:
webkit_web_view_go_back(c->view);
return TRUE;
case GDK_Right:
webkit_web_view_go_forward(c->view);
return TRUE;
}
}
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else {
switch(ev->keyval) {
case GDK_Escape:
stop(c);
return TRUE;
}
}
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return FALSE;
}
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void
linkhover(WebKitWebView* page, const gchar* t, const gchar* l, Client *c) {
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if(l)
gtk_window_set_title(GTK_WINDOW(c->win), l);
else
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updatetitle(c, NULL);
}
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void
loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
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gchar *uri;
ignore_once = TRUE;
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uri = geturi(c);
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XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), urlprop,
XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
strlen(uri) + 1);
}
void
loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
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if(c->download)
stop(c);
c->progress = 0;
updatetitle(c, NULL);
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}
void
loadfile(Client *c, const gchar *f) {
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GIOChannel *chan = NULL;
GError *e = NULL;
GString *code;
gchar *line, *uri;
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if(strcmp(f, "-") == 0) {
chan = g_io_channel_unix_new(STDIN_FILENO);
if (chan) {
code = g_string_new("");
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while(g_io_channel_read_line(chan, &line, NULL, NULL,
&e) == G_IO_STATUS_NORMAL) {
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g_string_append(code, line);
g_free(line);
}
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webkit_web_view_load_html_string(c->view, code->str,
"file://.");
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g_io_channel_shutdown(chan, FALSE, NULL);
g_string_free(code, TRUE);
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}
uri = g_strdup("stdin");
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}
else {
uri = g_strdup_printf("file://%s", f);
loaduri(c, uri);
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}
updatetitle(c, uri);
g_free(uri);
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}
void
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loaduri(Client *c, const gchar *uri) {
gchar *u;
u = g_strrstr(uri, ":") ? g_strdup(uri)
: g_strdup_printf("http://%s", uri);
webkit_web_view_load_uri(c->view, u);
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c->progress = 0;
updatetitle(c, u);
g_free(u);
}
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);
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/* 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),
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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);
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g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
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g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(newwindow), c);
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g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
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/* 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);
/* downloadbar */
/* Arranging */
gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
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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);
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webkit_web_view_set_full_content_zoom(c->view, TRUE);
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c->download = NULL;
c->title = NULL;
c->next = clients;
clients = c;
if(showxid)
printf("%u\n", (unsigned int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
return c;
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}
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WebKitWebView *
newwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c) {
Client *n = newclient();
return n->view;
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}
GdkFilterReturn
processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
Client *c = (Client *)d;
XPropertyEvent *ev;
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Atom adummy;
int idummy;
unsigned long ldummy;
unsigned char *buf = NULL;
if(((XEvent *)e)->type == PropertyNotify) {
ev = &((XEvent *)e)->xproperty;
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if(ev->atom == urlprop && ev->state == PropertyNewValue) {
if(ignore_once)
ignore_once = FALSE;
else {
XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
&adummy, &idummy, &ldummy, &ldummy, &buf);
loaduri(c, (gchar *)buf);
XFree(buf);
}
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return GDK_FILTER_REMOVE;
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}
}
return GDK_FILTER_CONTINUE;
}
void
progresschange(WebKitWebView* view, gint p, Client *c) {
c->progress = p;
updatetitle(c, NULL);
}
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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);
}
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void
stop(Client *c) {
if(c->download)
webkit_download_cancel(c->download);
else
webkit_web_view_stop_loading(c->view);
c->download = NULL;
}
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void
titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, Client *c) {
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updatetitle(c, t);
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}
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void
usage() {
fputs("surf - simple browser\n", stderr);
die("usage: surf [-e] [-x] [-u uri] [-f file]\n");
}
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void
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updatetitle(Client *c, const char *title) {
gchar *t;
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if(title) {
if(c->title)
g_free(c->title);
c->title = g_strdup(title);
}
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if(c->progress == 100)
t = g_strdup(c->title);
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else
t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
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gtk_window_set_title(GTK_WINDOW(c->win), t);
g_free(t);
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}
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int main(int argc, char *argv[]) {
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SoupSession *s;
Client *c;
int o;
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const gchar *home, *filename;
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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':
c = newclient();
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loaduri(c, optarg);
break;
case 'f':
c = newclient();
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loadfile(c, optarg);
break;
case 'v':
die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
break;
default:
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usage();
}
if(optind != argc)
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usage();
if(!clients)
newclient();
/* make dirs */
home = g_get_home_dir();
filename = g_build_filename(home, ".surf", NULL);
g_mkdir_with_parents(filename, 0711);
filename = g_build_filename(home, ".surf", "dl", NULL);
g_mkdir_with_parents(filename, 0755);
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/* cookie persistance */
s = webkit_get_default_session();
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filename = g_build_filename(home, ".surf", "cookies", NULL);
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cookiejar = soup_cookie_jar_text_new(filename, FALSE);
soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
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gtk_main();
cleanup();
return EXIT_SUCCESS;
}