yui-log.js revision 4fcbec6145d16637205990699912fb90f6a3807c
/*
* YUI console logger
* @module yui
* @submodule log
*/
YUI.add("log", function(instance) {
/**
* If the 'debug' config is true, a 'yui:log' event will be
* dispatched, which the logger widget and anything else
* can consume. If the 'useConsole' config is true, it will
* write to the browser console if available.
*
* @method log
* @for YUI
* @param {String} msg The message to log.
* @param {String} cat The log category for the message. Default
* categories are "info", "warn", "error", time".
* Custom categories can be used as well. (opt)
* @param {String} src The source of the the message (opt)
* @return {YUI} YUI instance
*/
instance.log = function(msg, cat, src) {
var Y = instance, c = Y.config, es = Y.Env._eventstack,
bail = (es && es.logging);
// suppress log message if the config is off or the event stack
// or the event call stack contains a consumer of the yui:log event
if (c.debug && !bail) {
// apply source filters
if (src) {
var exc = c.logExclude, inc = c.logInclude;
// console.log('checking src filter: ' + src + ', inc: ' + inc + ', exc: ' + exc);
if (inc && !(src in inc)) {
// console.log('bail: inc list found, but src is not in list: ' + src);
bail = true;
} else if (exc && (src in exc)) {
// console.log('bail: exc list found, and src is in it: ' + src);
bail = true;
}
}
if (c.useConsole && typeof console != 'undefined') {
if (!bail) {
var f = (cat && console[cat]) ? cat : 'log',
m = (src) ? src + ': ' + msg : msg;
console[f](m);
}
}
if (Y.fire && !bail) {
Y.fire('yui:log', msg, cat, src);
}
}
return Y;
};
}, "@VERSION@");