Screencast #13 - PubSub
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| <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<style>
#container { width: 500px; margin: 0 auto; text-align: center; }
#crapcatcher { border: 2px solid black; min-height: 300px; border-radius: 10px; padding: 10px; }
</style>
</head>
<body>
<div id="container">
<h2>Crap Goes Here</h2>
<div id="crapcatcher"></div>
<button onclick="$('#crapcatcher').empty()">Clear the Catcher</button>
</div>
</body>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script>
/* jQuery Tiny Pub/Sub - v0.7 - 10/27/2011
* http://benalman.com/
* Copyright (c) 2011 "Cowboy" Ben Alman; Licensed MIT, GPL */
(function($) {
var o = $({});
$.subscribe = function() {
o.on.apply(o, arguments);
};
$.unsubscribe = function() {
o.off.apply(o, arguments);
};
$.publish = function() {
o.trigger.apply(o, arguments);
};
}(jQuery));
// Examples
// $.subscribe("/some/topic", handler1);
// $.publish("/some/topic", [ "a", "b", "c" ]);
// $.unsubscribe("/some/topic", handler1);
function handler1(e) {
$("#crapcatcher").append("Hello from Hander 1<br />");
}
function handler2(e, a) {
$("#crapcatcher").append("Hello from Hander 2 - " + a + "<br />");
}
function handler3(e, a, b) {
$("#crapcatcher").append("Hello from Hander 3 - " + a + ":" + b + "<br />");
}
</script>
</html>
|
Resources
Cowboy Ben Alman’s jQuery PubSub
