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 {
GtkWidget *win, *scroll, *vbox, *pbar, *urlbar, *searchbar;
WebKitWebView *view;
gchar *title;
gint progress;
struct Client *next;
} Client;
SoupCookieJar *cookiejar;
Client *clients = NULL;
GSList *downloads = 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, gpointer d);
static void die(char *str);
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static void download(WebKitDownload *o, GParamSpec *pspec, gpointer d);
static gboolean initdownload(WebKitWebView *view, WebKitDownload *o, gpointer d);
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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, 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);
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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);
g_slist_free(downloads);
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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->pbar);
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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
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destroywin(GtkWidget* w, gpointer d) {
Client *c = (Client *)d;
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destroyclient(c);
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}
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void die(char *str) {
fputs(str, stderr);
exit(EXIT_FAILURE);
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}
void
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download(WebKitDownload *o, GParamSpec *pspec, gpointer d) {
Client *c = (Client *) d;
GSList *i;
WebKitDownload *dl;
GString *text;
text = g_string_new("");
for (i = downloads; i != NULL; i = i->next) {
dl = i->data;
if (webkit_download_get_status(dl) == WEBKIT_DOWNLOAD_STATUS_STARTED
|| webkit_download_get_status(dl) == WEBKIT_DOWNLOAD_STATUS_CREATED) {
g_string_append_printf(text, "%s[%.0f%%] ",
webkit_download_get_suggested_filename(dl),
webkit_download_get_progress(dl)*100);
} else {
downloads = g_slist_remove(downloads, dl);
}
}
if (downloads == NULL) {
gtk_label_set_text((GtkLabel *) c->pbar, "");
gtk_widget_hide(c->pbar);
} else {
gtk_label_set_text((GtkLabel *) c->pbar, text->str);
}
g_string_free(text, TRUE);
}
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gboolean
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initdownload(WebKitWebView *view, WebKitDownload *o, gpointer d) {
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/* TODO */
Client *c = (Client *) d;
const gchar *home;
gchar *uri, *filename;
home = g_get_home_dir();
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filename = g_build_filename(home, ".surf", "dl",
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);
downloads = g_slist_append(downloads, o);
gtk_widget_show(c->pbar);
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g_signal_connect(o, "notify::progress", G_CALLBACK(download), d);
g_signal_connect(o, "notify::status", G_CALLBACK(download), d);
webkit_download_start(o);
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, gpointer d) {
Client *c = (Client *)d;
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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:
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;
}
}
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;
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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;
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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return FALSE;
}
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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);
}
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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) {
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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);
}
}
else {
g_string_prepend(uri, "file://");
loaduri(c, uri->str);
}
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}
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);
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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);
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 */
c->pbar = gtk_label_new("");
/* 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);
gtk_container_add(GTK_CONTAINER(c->vbox), c->pbar);
/* 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->pbar, 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_hide_all(c->pbar);
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;
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}
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WebKitWebView *
newwindow(WebKitWebView *v, WebKitWebFrame *f, gpointer d) {
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) {
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XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
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&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);
}
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int main(int argc, char *argv[]) {
gchar *uri = NULL, *file = NULL;
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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':
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)
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goto argerr;
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;
}