You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.1 KiB
72 lines
2.1 KiB
2 years ago
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<html>
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<head>
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<script language="JavaScript" type="text/javascript">
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// Dojo configuration
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djConfig = {
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parseWidgets: false,
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isDebug: true
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};
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</script>
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<script language="JavaScript" type="text/javascript"
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src="../../dojo.js"></script>
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<script language="JavaScript" type="text/javascript">
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dojo.require("dojo.event.topic");
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sub1 = null;
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sub2 = null;
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function Subscriber(displayNode, subId, doUnsubscribe){
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this.subId = subId;
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this.doUnsubscribe = doUnsubscribe;
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this.displayNode = displayNode;
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this.update = function(message) {
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this.displayNode.innerHTML = this.subId + ": " + message;
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if(this.doUnsubscribe){
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dojo.event.topic.unsubscribe("testTopic1", this, "update");
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this.displayNode.innerHTML += "<br>" + this.subId + " has unsubscribed";
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}
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};
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}
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var clickCount = 0;
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function sendMessage1() {
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dojo.event.topic.publish("testTopic1", "Message " + (++clickCount));
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}
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dojo.addOnLoad(function(){
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sub1 = new Subscriber(document.getElementById("subscriber1"), "subscriber1", true);
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sub2 = new Subscriber(document.getElementById("subscriber2"), "subscriber2", false);
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dojo.event.topic.subscribe("testTopic1", sub1, "update");
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dojo.event.topic.subscribe("testTopic1", sub2, "update");
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});
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</script>
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</head>
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<body>
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<h1>Unsubscribe during a topic message notification</h2>
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<p>This test sees if it is possible for a subscriber to unsubscribe from a topic during notification
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of a topic message. Unsubscribing should not affect other subscribers from receiving the topic
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message.</p>
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<p>After pressing the button, the output should be:<br>
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<i>subscriber1: Message 1<br>
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subscriber1 has unsubscribed<br>
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subscriber2: Message 1<br></i>
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</p>
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<div style="font-weight: bold">Test</div>
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<div id="subscriber1" style="border: 1px solid black">
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subscriber1:
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</div>
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<div id="subscriber2" style="border: 1px solid black">
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subscriber2:
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</div>
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<button id="publisher" onclick="sendMessage1();">
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Publish a message on Topic1
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</button>
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</body>
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</html>
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