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/* $Id: keyboard.c,v 1.16 2011/09/09 08:35:17 khorben Exp $ */

/* 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

* - move and resize when the root window changes

* - track if child 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);

/* constants */

#define PANEL_KEYBOARD_COMMAND_DEFAULT "keyboard -x"

/* public */

/* variables */

PanelApplet applet =

{

NULL,

"Keyboard",

"input-keyboard",

_keyboard_init,

_keyboard_destroy,

_keyboard_settings,

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();

#if GTK_CHECK_VERSION(2, 12, 0)

gtk_widget_set_tooltip_text(ret, _("Show keyboard"));

#endif

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", PANEL_KEYBOARD_COMMAND_DEFAULT, NULL };

char const * p;

char * q = NULL;

gboolean res;

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

&& (q = strdup(p)) != NULL)

argv[2] = q;

res = g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH,

NULL, NULL, &keyboard->pid, NULL, &out, NULL, &error);

free(q);

if(res != 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_TOPLEVEL);

gtk_window_set_accept_focus(GTK_WINDOW(keyboard->window), FALSE);

#if GTK_CHECK_VERSION(2, 6, 0)

gtk_window_set_focus_on_map(GTK_WINDOW(keyboard->window), FALSE);

#endif

gtk_window_set_type_hint(GTK_WINDOW(keyboard->window),

GDK_WINDOW_TYPE_HINT_DOCK);

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)

{

if((p = applet->helper->config_get(applet->helper->panel,

"keyboard", "command")) == NULL)

p = PANEL_KEYBOARD_COMMAND_DEFAULT;

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(keyboard->helper->panel,

(GtkMenu*)keyboard->window, &x, &y, &push_in);

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);

}