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/*
* (C) 2006 OpenedHand Ltd.
*
* Author: Jorn Baayen <jorn@openedhand.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <gtk/gtkimage.h>
#include <gtk/gtkbutton.h>
#include <gdk/gdkx.h>
#include <string.h>
#include <unistd.h>
#include <matchbox-panel/mb-panel.h>
#ifdef USE_LIBSN
#define SN_API_NOT_YET_FROZEN 1
#include <libsn/sn.h>
#endif
typedef struct {
gboolean use_sn;
char *name;
char **argv;
} LauncherData;
static void
launcher_data_free (LauncherData *data)
{
g_free (data->name);
g_strfreev (data->argv);
g_slice_free (LauncherData, data);
}
#define MAX_ARGS 255
/* Convert command line to argv array, stripping % conversions on the way */
static char **
exec_to_argv (const char *exec)
{
const char *p;
char *buf, *bufp, **argv;
int nargs;
gboolean escape, single_quote, double_quote;
argv = g_new (char *, MAX_ARGS + 1);
buf = g_alloca (strlen (exec) + 1);
bufp = buf;
nargs = 0;
escape = single_quote = double_quote = FALSE;
for (p = exec; *p; p++) {
if (escape) {
*bufp++ = *p;
escape = FALSE;
} else {
switch (*p) {
case '\\':
escape = TRUE;
break;
case '%':
/* Strip '%' conversions */
if (p[1] && p[1] == '%')
*bufp++ = *p;
p++;
break;
case '\'':
if (double_quote)
*bufp++ = *p;
else
single_quote = !single_quote;
break;
case '\"':
if (single_quote)
*bufp++ = *p;
else
double_quote = !double_quote;
break;
case ' ':
if (single_quote || double_quote)
*bufp++ = *p;
else {
*bufp = 0;
if (nargs < MAX_ARGS)
argv[nargs++] = g_strdup (buf);
bufp = buf;
}
break;
default:
*bufp++ = *p;
break;
}
}
}
if (bufp != buf) {
*bufp = 0;
if (nargs < MAX_ARGS)
argv[nargs++] = g_strdup (buf);
}
argv[nargs] = NULL;
return argv;
}
/* Button clicked */
static void
clicked_cb (GtkButton *button,
LauncherData *data)
{
pid_t child_pid = 0;
#ifdef USE_LIBSN
SnLauncherContext *context;
context = NULL;
if (data->use_sn) {
SnDisplay *sn_dpy;
Display *display;
int screen;
display = gdk_x11_display_get_xdisplay
(gtk_widget_get_display (GTK_WIDGET (button)));
sn_dpy = sn_display_new (display, NULL, NULL);
screen = gdk_screen_get_number
(gtk_widget_get_screen (GTK_WIDGET (button)));
context = sn_launcher_context_new (sn_dpy, screen);
sn_display_unref (sn_dpy);
sn_launcher_context_set_name (context, data->name);
sn_launcher_context_set_binary_name (context,
data->argv[0]);
sn_launcher_context_initiate (context,
"matchbox-panel",
data->argv[0],
CurrentTime);
}
#endif
switch ((child_pid = fork ())) {
case -1:
g_warning ("Fork failed");
break;
case 0:
#ifdef USE_LIBSN
if (data->use_sn)
sn_launcher_context_setup_child_process (context);
#endif
execvp (data->argv[0], data->argv);
g_warning ("Failed to execvp() %s", data->argv[0]);
_exit (1);
break;
}
#ifdef USE_LIBSN
if (data->use_sn)
sn_launcher_context_unref (context);
#endif
}
G_MODULE_EXPORT GtkWidget *
mb_panel_applet_create (const char *id,
int panel_width,
int panel_height)
{
char *filename;
GKeyFile *key_file;
GtkWidget *button, *image;
GError *error;
char *icon, *exec, *name;
gboolean use_sn;
int shortest_side;
LauncherData *data;
/* Try to find a .desktop file for @id */
key_file = g_key_file_new ();
filename = g_strdup_printf ("applications/%s.desktop", id);
error = NULL;
if (!g_key_file_load_from_data_dirs (key_file,
filename,
NULL,
G_KEY_FILE_NONE,
&error)) {
/* An error occured */
g_warning ("%s", error->message);
g_error_free (error);
g_free (filename);
g_key_file_free (key_file);
return NULL;
}
g_free (filename);
/* Found and opened keyfile. Read the values we want. */
/* Icon */
error = NULL;
icon = g_key_file_get_string (key_file,
"Desktop Entry",
"Icon",
&error);
if (!icon) {
/* An error occured */
g_warning ("%s", error->message);
g_error_free (error);
g_key_file_free (key_file);
return NULL;
}
icon = g_strstrip (icon);
/* Exec */
error = NULL;
exec = g_key_file_get_string (key_file,
"Desktop Entry",
"Exec",
&error);
if (!exec) {
/* An error occured */
g_warning ("%s", error->message);
g_error_free (error);
g_free (icon);
g_key_file_free (key_file);
return NULL;
}
exec = g_strstrip (exec);
/* Name */
name = g_key_file_get_string (key_file,
"Desktop Entry",
"Name",
NULL);
/* StartupNotify */
use_sn = g_key_file_get_boolean (key_file,
"Desktop Entry",
"StartupNotify",
NULL);
/* Close key file */
g_key_file_free (key_file);
/* Create image widget */
image = gtk_image_new ();
/* Load icon */
shortest_side = MIN (panel_width, panel_height);
if (icon[0] == '/') {
/* Absolute path specified: load icon directly */
GdkPixbuf *pixbuf;
error = NULL;
pixbuf = gdk_pixbuf_new_from_file_at_scale (icon,
shortest_side,
shortest_side,
TRUE,
&error);
if (!pixbuf) {
/* An error occured */
g_warning ("%s", error->message);
g_error_free (error);
g_free (icon);
g_free (exec);
g_free (name);
gtk_widget_destroy (image);
return NULL;
}
gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
g_object_unref (pixbuf);
} else {
/* No absolute path given. Load icon from icon theme */
char *p;
/* Strip extension, so that we can feed the filename to
* GTK+'s icon name handling. */
p = strrchr (icon, '.');
if (p)
*p = 0;
gtk_image_set_pixel_size (GTK_IMAGE (image), shortest_side);
gtk_image_set_from_icon_name (GTK_IMAGE (image),
icon,
0);
}
g_free (icon);
/* Create button */
button = gtk_button_new ();
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
GTK_WIDGET_UNSET_FLAGS (button, GTK_CAN_FOCUS);
/* Strip %-conversions from exec */
/* Connect to "clicked" signal */
data = g_slice_new (LauncherData);
data->use_sn = use_sn;
data->name = name;
data->argv = exec_to_argv (exec);
g_free (exec);
g_signal_connect_data (button,
"clicked",
G_CALLBACK (clicked_cb),
data,
(GClosureNotify) launcher_data_free,
0);
/* Add image to button */
gtk_container_add (GTK_CONTAINER (button), image);
/* Show! */
gtk_widget_show_all (button);
return button;
};
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