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/***************************************************************************
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* Copyright (C) 2007 by Ken Werner *
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* ken.werner@web.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "batterysrc.h"
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#include <klocale.h>
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#include <kdebug.h>
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#define DBUS_DEBUG_MESSAGE(func, _dbus_err_) \
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kdDebug() << "error in " << func << ": " << _dbus_err_.name << ", " << _dbus_err_.message << endl
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#define FREE_DBUS_ERROR(func, _dbus_err_) \
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do { \
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if(dbus_error_is_set(&_dbus_err_)) { \
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DBUS_DEBUG_MESSAGE(func, _dbus_err_); \
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dbus_error_free(&_dbus_err_); \
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} \
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} while(0)
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BatterySrc::BatterySrc(TQWidget* inParent, TQString inUDI):
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LabelSource(inParent),
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mTrigger(this, 5000),
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mUDI(inUDI),
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mLibHalContext(NULL){
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mID = mUDI.section('/', -1);
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mName = mID;
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mDescription = i18n("This source displays the current state of charge of your battery.");
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dbus_error_init(&mDBusError);
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if((mLibHalContext = libhal_ctx_new()) == NULL){
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kdDebug() << "error: libmLibHalContext_new" << endl;
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return;
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}
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if(!libhal_ctx_set_dbus_connection(mLibHalContext, dbus_bus_get (DBUS_BUS_SYSTEM, &mDBusError))){
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FREE_DBUS_ERROR("libhal_ctx_set_dbus_connection", mDBusError);
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libhal_ctx_free(mLibHalContext);
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mLibHalContext = NULL;
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return;
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}
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if(!libhal_ctx_init(mLibHalContext, &mDBusError)){
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FREE_DBUS_ERROR("libhal_ctx_init", mDBusError);
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libhal_ctx_free(mLibHalContext);
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mLibHalContext = NULL;
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return;
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}
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}
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BatterySrc::~BatterySrc(){
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if(mLibHalContext != NULL){
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if(!libhal_ctx_shutdown(mLibHalContext, &mDBusError)){
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FREE_DBUS_ERROR("libhal_ctx_shutdown", mDBusError);
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}
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libhal_ctx_free(mLibHalContext);
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}
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}
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std::list<Source*>BatterySrc::createInstances(TQWidget* inParent){
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std::list<Source*> list;
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LibHalContext* libHalContext;
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DBusError dBusError;
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dbus_error_init(&dBusError);
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if((libHalContext = libhal_ctx_new()) == NULL){
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kdDebug() << "error: libmLibHalContext_new" << endl;
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return list;
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}
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if(!libhal_ctx_set_dbus_connection(libHalContext, dbus_bus_get (DBUS_BUS_SYSTEM, &dBusError))){
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FREE_DBUS_ERROR("libhal_ctx_set_dbus_connection", dBusError);
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libhal_ctx_free(libHalContext);
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return list;
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}
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if(!libhal_ctx_init(libHalContext, &dBusError)){
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FREE_DBUS_ERROR("libhal_ctx_init", dBusError);
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libhal_ctx_free(libHalContext);
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return list;
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}
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int num = 0;
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char** udis = libhal_manager_find_device_string_match(libHalContext, "info.category", "battery", &num, &dBusError);
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if(!dbus_error_is_set(&dBusError)){
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for(int i = 0; i < num; ++i){
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if(libhal_device_get_property_type(libHalContext, udis[i], "battery.charge_level.last_full", &dBusError) == LIBHAL_PROPERTY_TYPE_INT32 && libhal_device_get_property_type(libHalContext, udis[i], "battery.charge_level.current", &dBusError) == LIBHAL_PROPERTY_TYPE_INT32){
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if(!dbus_error_is_set(&dBusError)) // todo: check whether this check is redundant
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list.push_back(new BatterySrc(inParent, udis[i]));
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}
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if(dbus_error_is_set(&dBusError)) {
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DBUS_DEBUG_MESSAGE("libhal_device_get_property_type", dBusError);
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dbus_error_free(&dBusError);
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}
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}
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} else {
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DBUS_DEBUG_MESSAGE("libhal_manager_find_device_string_match", dBusError);
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dbus_error_free(&dBusError);
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}
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if(!libhal_ctx_shutdown(libHalContext, &dBusError)){
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FREE_DBUS_ERROR("libhal_ctx_shutdown", dBusError);
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}
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// clean up
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libhal_ctx_free(libHalContext);
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libhal_free_string_array(udis);
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return list;
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}
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TQString BatterySrc::fetchValue() {
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TQString s = "n/a";
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if(mLibHalContext != NULL){
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int last_full = 0;
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int current = 0;
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last_full = libhal_device_get_property_int(mLibHalContext, mUDI.ascii(), "battery.charge_level.last_full", &mDBusError);
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if(dbus_error_is_set(&mDBusError)){
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DBUS_DEBUG_MESSAGE("libhal_device_get_property_int", mDBusError);
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dbus_error_free(&mDBusError);
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return s;
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}
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current = libhal_device_get_property_int(mLibHalContext, mUDI.ascii(), "battery.charge_level.current", &mDBusError);
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if(dbus_error_is_set(&mDBusError)){
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DBUS_DEBUG_MESSAGE("libhal_device_get_property_int", mDBusError);
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dbus_error_free(&mDBusError);
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return s;
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}
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s = TQString::number(tqRound((current * 100.0) / last_full)) + " %";
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}
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return s;
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}
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