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/*
* Copyright (c) 2011-2012 Research In Motion Limited.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <bps/bps.h>
#include <bps/dialog.h>
#include <bps/locale.h>
#include <bps/navigator.h>
#include <stdio.h>
#include <stdlib.h>
#include "dialogutil.h"
/*
* buffer to store messages that we will display in the dialog
*/
#define MSG_SIZE 1024
static char msg[MSG_SIZE];
/**
* Print the Locale data.
*
* @param language the locale language value.
* @param country the locale country value
*/
void
display_locale(const char *language, const char *country)
{
/*
* Print the locale values
*/
if(language == NULL) {
language = "None";
}
if(country == NULL) {
country = "None";
}
snprintf(msg, MSG_SIZE, "Language: %s\n Country: %s\n", language, country);
show_dialog_message(msg);
}
/**
* A sample application that demonstrates the BlackBerry(R) 10 Native SDK APIs
* for managing locale. The sample queries for the current locale and then
* listens for locale update events.
*/
int
main(int argc, char *argv[])
{
/*
* Before we can listen for events from the BlackBerry(R) 10 OS platform
* services, we need to initialize the BPS infrastructure
*/
bps_initialize();
if (setup_screen() != EXIT_SUCCESS) {
printf("Unable to set up the screen. Exiting.");
return 0;
}
/*
* Once the BPS infrastructure has been initialized we can register for
* events from the various BlackBerry(R) 10 OS platform services. The
* Navigator service manages and delivers application life cycle and
* visibility events.
* For this sample, we request Navigator events so that we can track when
* the system is terminating the application (NAVIGATOR_EXIT event) as well
* as Locale events so we can be notified when the locale is updated
*/
navigator_request_events(0);
locale_request_events(0);
dialog_request_events(0);
/*
* Create and display the dialog.
*/
create_dialog();
/*
* Retrieve and display the current Locale using the locale_get(...) API
*/
char* country = NULL;
char* language = NULL;
locale_get(&language, &country);
display_locale(language, country);
bps_free((char*)language);
bps_free((char*)country);
/*
* Process Locale and Navigator events until we receive a NAVIGATOR_EXIT event.
*/
int exit_application = 0;
while (!exit_application) {
/*
* Using a negative timeout (-1) in the call to bps_get_event(...)
* ensures that we don't busy wait by blocking until an event is
* available.
*/
bps_event_t *event = NULL;
bps_get_event(&event, -1);
if (event) {
if (bps_event_get_domain(event) == locale_get_domain()) {
/*
* If it is a LOCALE_INFO event then display the updated locale
* information
*/
if (LOCALE_INFO == bps_event_get_code(event)) {
/*
* The locale_event_get_language and locale_event_get_country
* calls return pointers to data within the event. When
* the event is destroyed below via the call to
* bps_event_destroy(event), the returned pointers would
* reference deallocated memory.
*
* To avoid potentially having pointers to dereferenced
* memory, we'll use local variables to store the pointers
* into the event data. This way, the pointers will go
* out of scope and thus cannot be used after the event
* is freed.
*/
const char* language = locale_event_get_language(event);
const char* country = locale_event_get_country(event);
display_locale(language, country);
}
}
/*
* If it is a NAVIGATOR_EXIT event then set the exit_application
* flag so the application will stop processing events, clean up
* and exit
*/
if (bps_event_get_domain(event) == navigator_get_domain()) {
if (NAVIGATOR_EXIT == bps_event_get_code(event)) {
exit_application = 1;
}
}
}
}
/*
* Destroy the dialog, if it exists and cleanup screen resources.
*/
destroy_dialog();
cleanup_screen();
/*
* Clean up the BPS infrastructure and exit
*/
bps_shutdown();
return 0;
}
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