core-resource-app-test
Version:
App that contains assets and scripts for the core apps
134 lines (120 loc) • 4.75 kB
JavaScript
;
/*
* Copyright (c) 2004-2014, University of Oslo
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* Neither the name of the HISP project nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
dhis2.util.namespace('dhis2.availability');
dhis2.availability._isAvailable = -1;
dhis2.availability._isLoggedIn = -1;
dhis2.availability._availableTimeoutHandler = -1;
/**
* Start availability check, will trigger dhis2.online / dhis2.offline events
* when availability changes.
*
* @param onlineInterval How often to check for availability when online,
* default is 10000.
* @param offlineInterval How often to check for availability when offline,
* default is 1000.
*/
dhis2.availability.startAvailabilityCheck = function( onlineInterval, offlineInterval ) {
onlineInterval = onlineInterval ? onlineInterval : 15000;
offlineInterval = offlineInterval ? offlineInterval : 1000;
var baseUrl = dhis2.util.BASEURL;
function _checkAvailability() {
$.ajax({
url: baseUrl + "/dhis-web-commons-stream/ping.action",
cache: false,
timeout: 30000,
dataType: "text",
success: function( data, textStatus, jqXHR ) {
try {
data = JSON.parse(data);
} catch( e ) {
}
dhis2.availability._isAvailable = true;
var loggedIn = data.loggedIn ? true : false;
if( loggedIn != dhis2.availability._isLoggedIn ) {
dhis2.availability._isLoggedIn = loggedIn;
$(document).trigger("dhis2.online", [ loggedIn ]);
}
},
error: function( jqXHR, textStatus, errorThrown ) {
if( dhis2.availability._isAvailable ) {
dhis2.availability._isAvailable = false;
dhis2.availability._isLoggedIn = -1;
$(document).trigger("dhis2.offline");
}
},
complete: function() {
if( dhis2.availability._isAvailable ) {
dhis2.availability._availableTimeoutHandler = setTimeout(_checkAvailability, onlineInterval);
}
else {
dhis2.availability._availableTimeoutHandler = setTimeout(_checkAvailability, offlineInterval);
}
}
});
}
// use 500ms for initial check
setTimeout(_checkAvailability, 500);
};
/**
* Stop checking for availability.
*/
dhis2.availability.stopAvailabilityCheck = function() {
clearTimeout(dhis2.availability._availableTimeoutHandler);
};
/**
* Synchronized one-off check of availability.
*/
dhis2.availability.syncCheckAvailability = function() {
var isLoggedIn = false;
var baseUrl = dhis2.util.BASEURL;
$.ajax({
url: baseUrl + "/dhis-web-commons-stream/ping.action",
async: false,
cache: false,
timeout: 30000,
dataType: "json",
success: function( data, textStatus, jqXHR ) {
dhis2.availability._isAvailable = true;
var loggedIn = data.loggedIn ? true : false;
if( loggedIn != dhis2.availability._isLoggedIn ) {
dhis2.availability._isLoggedIn = loggedIn;
$(document).trigger("dhis2.online", [ loggedIn ]);
}
isLoggedIn = loggedIn;
},
error: function( jqXHR, textStatus, errorThrown ) {
if( dhis2.availability._isAvailable ) {
dhis2.availability._isAvailable = false;
dhis2.availability._isLoggedIn = -1;
$(document).trigger("dhis2.offline");
}
}
});
return isLoggedIn;
};