ede/ede-keyboard-conf/ede-keyboard-conf.cpp

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/*
* $Id$
*
* ede-keyboard-conf, a tool to configure keyboard
* Part of Equinox Desktop Environment (EDE).
* Copyright (c) 2009 EDE Authors.
*
* This program is licensed under terms of the
* GNU General Public License version 2 or newer.
* See COPYING for details.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <edelib/MessageBox.h>
#include <edelib/Ede.h>
EDELIB_NS_USING(alert)
#ifdef HAVE_XKBRULES
#include <stdio.h>
#include <string.h>
#include <FL/Fl.H>
#include <FL/x.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Tabs.H>
#include <FL/Fl_Group.H>
#include <FL/Fl_Hold_Browser.H>
#include <FL/Fl_Check_Button.H>
#include <FL/Fl_Box.H>
#include <X11/XKBlib.h>
#include <X11/extensions/XKBrules.h>
#include <edelib/Window.h>
#include <edelib/WindowUtils.h>
#include <edelib/Debug.h>
#include <edelib/String.h>
#include <edelib/Resource.h>
#include <edelib/File.h>
#include <edelib/Run.h>
#include <edelib/MessageBox.h>
#include <edelib/ForeignCallback.h>
#define CONFIG_NAME "ede-keyboard"
#define PANEL_APPLET_ID "ede-keyboard"
#define DEFAULT_X_LAYOUT "us"
EDELIB_NS_USING_AS(Window, AppWindow)
EDELIB_NS_USING(String)
EDELIB_NS_USING(Resource)
EDELIB_NS_USING(file_path)
EDELIB_NS_USING(run_sync)
EDELIB_NS_USING(foreign_callback_call)
EDELIB_NS_USING(window_center_on_screen)
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static AppWindow *win;
static Fl_Hold_Browser *layout_browser;
static Fl_Check_Button *repeat_press;
static Fl_Check_Button *show_flag;
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static bool dialog_canceled;
static bool show_flag_value;
static bool repeat_press_value;
static const char *x11_dirs[] = {
"/etc/X11/",
"/usr/share/X11/",
"/usr/local/share/X11/",
"/usr/X11R6/lib/X11/",
"/usr/X11R6/lib64/X11/",
"/usr/local/X11R6/lib/X11/",
"/usr/local/X11R6/lib64/X11/",
"/usr/lib/X11/",
"/usr/lib64/X11/",
"/usr/local/lib/X11/",
"/usr/local/lib64/X11/",
"/usr/pkg/share/X11/",
"/usr/pkg/xorg/lib/X11/",
0
};
static const char *x11_rules[] = {
"xkb/rules/xorg",
"xkb/rules/xfree86",
0
};
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static void cancel_cb(Fl_Widget*, void*) {
win->hide();
dialog_canceled = true;
}
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static void ok_cb(Fl_Widget*, void*) {
win->hide();
dialog_canceled = false;
}
static void show_flag_cb(Fl_Widget*, void*) {
show_flag_value = (bool)show_flag->value();
}
static void repeat_press_cb(Fl_Widget*, void*) {
repeat_press_value = (bool)repeat_press->value();
}
static void fetch_current_layout(String &current) {
char *rules_file;
XkbRF_VarDefsRec vd;
/* get the layout straight from X since the layout can be changed during X session */
if(!XkbRF_GetNamesProp(fl_display, &rules_file, &vd)) {
/* use some values */
current = DEFAULT_X_LAYOUT;
} else {
current = vd.layout;
}
/* free everything */
XFree(rules_file);
XFree(vd.layout);
XFree(vd.model);
XFree(vd.options);
XFree(vd.variant);
}
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static int sort_cmp(const void *a, const void *b) {
XkbRF_VarDescPtr first = (XkbRF_VarDescPtr)a;
XkbRF_VarDescPtr second = (XkbRF_VarDescPtr)b;
return strcmp(first->desc, second->desc);
}
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static XkbRF_RulesPtr fetch_all_layouts(const String &current) {
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char buf[256];
XkbRF_RulesPtr xkb_rules = NULL;
XkbRF_DescribeVarsPtr layouts = NULL;
/* try to locate rules file */
for(int i = 0; x11_dirs[i]; i++) {
for(int j = 0; x11_rules[j]; j++) {
snprintf(buf, sizeof(buf), "%s%s", x11_dirs[i], x11_rules[j]);
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xkb_rules = XkbRF_Load(buf, (char*)"", True, True);
if(xkb_rules)
goto done;
}
}
if(!xkb_rules) {
E_WARNING(E_STRLOC ": Unable to load keyboard rules file\n");
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return NULL;
}
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done:
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layouts = &xkb_rules->layouts;
/* sort them */
qsort(layouts->desc, layouts->num_desc, sizeof(XkbRF_VarDescRec), sort_cmp);
for(int i = 0; i < layouts->num_desc; i++) {
snprintf(buf, sizeof(buf), "%s\t%s", layouts->desc[i].name, layouts->desc[i].desc);
layout_browser->add(buf);
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if(current == layouts->desc[i].name) {
/* Fl_Browser counts items from 1 */
layout_browser->select(i + 1);
}
}
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return xkb_rules;
}
static void read_config(String *ret_layout) {
Resource r;
if(!r.load(CONFIG_NAME)) {
/* setup some default values */
show_flag_value = repeat_press_value = true;
if(ret_layout)
*ret_layout = DEFAULT_X_LAYOUT;
return;
}
/*
* NOTE: keyboard layout is not read from config file to set applet flag/name;
* this is done using X call. Keyboard layout is only read when '--apply' was given
* to this program, so it can be set when EDE is started
*/
r.get("Keyboard", "show_country_flag", show_flag_value, true);
r.get("Keyboard", "repeat_key_press", repeat_press_value, true);
if(ret_layout) {
char buf[32];
if(r.get("Keyboard", "layout", buf, sizeof(buf)))
*ret_layout = buf;
else
*ret_layout = DEFAULT_X_LAYOUT;
}
}
static void save_config(const String &layout) {
Resource r;
r.set("Keyboard", "show_country_flag", show_flag_value);
r.set("Keyboard", "repeat_key_press", repeat_press_value);
r.set("Keyboard", "layout", layout.c_str());
r.save(CONFIG_NAME);
}
static void apply_changes_on_x(const char *current, const String *previous) {
if(repeat_press_value)
XAutoRepeatOn(fl_display);
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else
XAutoRepeatOff(fl_display);
/* do not do anything if selected layout is the same as previous */
if(!previous || *previous != current) {
/*
* believe me, it is easier to call this command than to reimplmement a mess for
* uploading keyboard layout on X server!
*/
String setxkbmap = file_path("setxkbmap");
if(setxkbmap.empty()) {
alert(_("Unable to find 'setxkbmap' tool.\n\nThis tool is used as helper tool for "
"easier keyboard setup and is standard tool shipped with every X package. "
"Please install it first and run this program again."));
} else {
int ret = run_sync("%s %s", setxkbmap.c_str(), current);
/* do not show dialog since we can fail if config has bad entry when called from apply_chages_from_config() */
if(ret != 0)
E_WARNING(E_STRLOC ": 'setxkbmap %s' failed with %i\n", current, ret);
}
}
/* force panel applet to re-read config file to see if flag should be displayed or not */
foreign_callback_call(PANEL_APPLET_ID);
}
#endif /* HAVE_XKBRULES */
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int main(int argc, char **argv) {
#ifdef HAVE_XKBRULES
/* must be opened first */
fl_open_display();
/* only apply what was written in config */
if(argc > 1 && strcmp(argv[1], "--apply") == 0) {
String layout;
read_config(&layout);
apply_changes_on_x(layout.c_str(), NULL);
return 0;
} else {
read_config(NULL);
}
EDE_APPLICATION("ede-keyboard-conf");
String cl;
dialog_canceled = false;
/* get layout X holds */
fetch_current_layout(cl);
/* construct GUI */
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win = new AppWindow(340, 320, _("Keyboard configuration tool"));
win->begin();
Fl_Tabs *tabs = new Fl_Tabs(10, 10, 320, 265);
tabs->begin();
Fl_Group *layout_group = new Fl_Group(15, 30, 310, 240, _("Layout"));
layout_group->begin();
layout_browser = new Fl_Hold_Browser(20, 40, 300, 190);
/* so things can be nicely aligned per column */
int cwidths [] = {100, 0};
layout_browser->column_widths(cwidths);
layout_browser->column_char('\t');
layout_group->resizable(layout_browser);
show_flag = new Fl_Check_Button(20, 240, 300, 25, _("Show country flag"));
show_flag->tooltip(_("Display country flag in panel keyboard applet"));
show_flag->down_box(FL_DOWN_BOX);
show_flag->value(show_flag_value);
show_flag->callback(show_flag_cb);
layout_group->end();
Fl_Group::current()->resizable(layout_group);
Fl_Group *details_group = new Fl_Group(15, 30, 310, 240, _("Details"));
details_group->hide();
details_group->begin();
repeat_press = new Fl_Check_Button(20, 45, 300, 25, _("Repeat pressed key"));
repeat_press->tooltip(_("Allow pressed key to be repeated"));
repeat_press->down_box(FL_DOWN_BOX);
repeat_press->value(repeat_press_value);
repeat_press->callback(repeat_press_cb);
details_group->end();
tabs->end();
/* resizable box */
Fl_Box *rbox = new Fl_Box(30, 163, 65, 52);
Fl_Group::current()->resizable(rbox);
Fl_Button *ok_button = new Fl_Button(145, 285, 90, 25, _("&OK"));
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ok_button->callback(ok_cb);
Fl_Button *cancel_button = new Fl_Button(240, 285, 90, 25, _("&Cancel"));
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cancel_button->callback(cancel_cb);
win->end();
/* read all XKB layouts */
XkbRF_RulesPtr xkb_rules = fetch_all_layouts(cl);
window_center_on_screen(win);
win->show(argc, argv);
Fl::run();
/* do not save configuration if was canceled */
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if(!dialog_canceled && xkb_rules && layout_browser->value()) {
int i = layout_browser->value();
/* get the layout that matches browser row */
char *n = xkb_rules->layouts.desc[i - 1].name;
save_config(n);
apply_changes_on_x(n, &cl);
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}
if(xkb_rules)
XkbRF_Free(xkb_rules, True);
#else
alert(_("ede-keyboard-conf was compiled without XKB extension. Please recompile it again"));
#endif /* HAVE_XKBRULES */
return 0;
}