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glue.js
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glue.js
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/**
* js/glue.js
* Auxiliary hotglue frontend code
*
* Copyright Gottfried Haider, Danja Vasiliev 2010.
* This source code is licensed under the GNU General Public License.
* See the file COPYING for more details.
*/
// create dummy console functions
if (!window.console) {
console = {};
}
console.log = console.log || function(){};
console.error = console.error || function(){};
console.warn = console.warn || function(){};
console.info = console.info || function(){};
$.glue = {};
// communication with the backend
$.glue.backend = function()
{
$(document).ready(function() {
$(this).ajaxError(function(e, xhr, options, err) {
if (xhr.readyState == 0 || xhr.status == 0) {
// not really an error
// these happen when navigating away while a ajax request is in flight
// see http://stackoverflow.com/questions/866771/jquery-ambiguous-ajax-error
} else {
$.glue.error('There was a problem communicating with the server (ready state '+xhr.readyState+', status '+ xhr.status+')');
}
});
});
return function(param, func, print_errors) {
// ten seconds timeout
$.ajaxSetup({ timeout: 10000 });
// make sure parameters are json encoded
// otherwise we would get complaints from the php parser for empty
// strings, arrays and thelike
for (p in param) {
param[p] = JSON.stringify(param[p]);
}
$.post($.glue.base_url+'json.php', param, function(data) {
if (print_errors === undefined) {
print_errors = true;
}
if (data === null) {
if (print_errors) {
$.glue.error('There was a problem communicating with the server');
} else if (typeof func == 'function') {
func({ '#error': true, '#data':'There was a problem communicating with the server' });
}
} else if (print_errors) {
if (data['#error']) {
$.glue.error(data['#data']);
} else if (typeof func == 'function') {
func(data['#data']);
}
} else if (typeof func == 'function') {
func(data);
}
}, 'json');
};
}();
$.glue.error = function()
{
return function(s) {
if ($.glue.conf.show_frontend_errors) {
alert('The glue gun manufacturer says: '+s);
}
};
}();

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