Desktop
/* $Id: keyboard.c,v 1.7 2010/12/31 00:25:19 khorben Exp $ */
/* Copyright (c) 2010 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Panel */
/* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* TODO:
* - choose a correct size for the window
* - track if xkbd's process ever dies
* - write own keyboard implementation (dlopen keyboard's binary) */
#include <unistd.h>
#include <stdlib.h>
#ifdef DEBUG
# include <stdio.h>
#endif
#include <string.h>
#include <errno.h>
#include <libintl.h>
#include <gdk/gdkx.h>
#include "Panel.h"
#define _(string) gettext(string)
/* Keyboard */
/* private */
/* types */
typedef struct _Keyboard
{
PanelAppletHelper * helper;
GPid pid;
GtkWidget * window;
/* preferences */
GtkWidget * pr_box;
GtkWidget * pr_command;
} Keyboard;
/* prototypes */
static GtkWidget * _keyboard_init(PanelApplet * applet);
static void _keyboard_destroy(PanelApplet * applet);
static GtkWidget * _keyboard_settings(PanelApplet * applet, gboolean apply,
gboolean reset);
/* callbacks */
static void _on_keyboard_toggled(GtkWidget * widget, gpointer data);
/* public */
/* variables */
PanelApplet applet =
{
NULL,
"Keyboard",
NULL,
_keyboard_init,
_keyboard_destroy,
_keyboard_settings,
PANEL_APPLET_POSITION_START,
FALSE,
TRUE,
NULL
};
/* private */
/* functions */
/* keyboard_init */
static gboolean _init_idle(gpointer data);
static GtkWidget * _keyboard_init(PanelApplet * applet)
{
GtkWidget * ret;
GtkWidget * image;
Keyboard * keyboard;
if((keyboard = malloc(sizeof(*keyboard))) == NULL)
return NULL;
applet->priv = keyboard;
keyboard->helper = applet->helper;
keyboard->pid = -1;
keyboard->window = NULL;
keyboard->pr_box = NULL;
ret = gtk_toggle_button_new();
gtk_button_set_relief(GTK_BUTTON(ret), GTK_RELIEF_NONE);
g_signal_connect(G_OBJECT(ret), "toggled", G_CALLBACK(
_on_keyboard_toggled), keyboard);
image = gtk_image_new_from_icon_name("input-keyboard",
applet->helper->icon_size);
gtk_container_add(GTK_CONTAINER(ret), image);
gtk_widget_show_all(ret);
g_idle_add(_init_idle, keyboard);
return ret;
}
static gboolean _init_idle(gpointer data)
{
Keyboard * keyboard = data;
char * argv[] = { "sh", "-c", "xkbd -xid", NULL };
char const * p;
gint out = -1;
GError * error = NULL;
char buf[32];
ssize_t size;
unsigned long xid;
GtkWidget * socket;
if(keyboard->window != NULL)
return FALSE;
if((p = keyboard->helper->config_get(keyboard->helper->panel,
"keyboard", "command")) != NULL)
argv[2] = p;
if(g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
NULL, &keyboard->pid, NULL, &out, NULL, &error)
!= TRUE)
return keyboard->helper->error(keyboard->helper->panel,
argv[0], FALSE);
if((size = read(out, buf, sizeof(buf) - 1)) <= 0) /* XXX may block */
return keyboard->helper->error(keyboard->helper->panel,
"read", FALSE); /* XXX not very explicit... */
buf[size] = '\0';
if(sscanf(buf, "%lu", &xid) != 1)
return FALSE; /* XXX warn the user */
keyboard->window = gtk_window_new(GTK_WINDOW_POPUP);
socket = gtk_socket_new();
gtk_widget_set_size_request(socket, 480, 150);
gtk_container_add(GTK_CONTAINER(keyboard->window), socket);
gtk_socket_add_id(GTK_SOCKET(socket), xid);
gtk_widget_show(socket);
return FALSE;
}
/* keyboard_destroy */
static void _keyboard_destroy(PanelApplet * applet)
{
Keyboard * keyboard = applet->priv;
if(keyboard->pid > 0)
g_spawn_close_pid(keyboard->pid); /* XXX may be dead already */
free(keyboard);
}
/* keyboard_settings */
static GtkWidget * _keyboard_settings(PanelApplet * applet, gboolean apply,
gboolean reset)
{
Keyboard * keyboard = applet->priv;
GtkWidget * hbox;
GtkWidget * widget;
char const * p;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(%p, %s, %s)\n", __func__, (void*)applet,
apply ? "TRUE" : "FALSE", reset ? "TRUE" : "FALSE");
#endif
if(keyboard->pr_box == NULL)
{
keyboard->pr_box = gtk_vbox_new(FALSE, 4);
hbox = gtk_hbox_new(FALSE, 4);
widget = gtk_label_new("Command:");
gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
keyboard->pr_command = gtk_entry_new();
gtk_box_pack_start(GTK_BOX(hbox), keyboard->pr_command, TRUE,
TRUE, 0);
gtk_box_pack_start(GTK_BOX(keyboard->pr_box), hbox, FALSE, TRUE,
0);
gtk_widget_show_all(keyboard->pr_box);
reset = TRUE;
}
if(reset == TRUE)
{
p = applet->helper->config_get(applet->helper->panel,
"keyboard", "command");
if(p != NULL)
gtk_entry_set_text(GTK_ENTRY(keyboard->pr_command), p);
}
if(apply == TRUE)
{
p = gtk_entry_get_text(GTK_ENTRY(keyboard->pr_command));
applet->helper->config_set(applet->helper->panel, "keyboard",
"command", p);
}
return keyboard->pr_box;
}
/* callbacks */
/* on_keyboard_toggled */
static void _on_keyboard_toggled(GtkWidget * widget, gpointer data)
{
Keyboard * keyboard = data;
gint x = 0;
gint y = 0;
gboolean push_in;
if(keyboard->window == NULL)
_init_idle(keyboard);
if(keyboard->window == NULL)
return;
keyboard->helper->position_menu((GtkMenu*)keyboard->window, &x, &y,
&push_in, keyboard->helper->panel);
gtk_window_move(GTK_WINDOW(keyboard->window), x, y);
if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
gtk_widget_show(keyboard->window);
else
gtk_widget_hide(keyboard->window);
}