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Dojo and the script tags
Alex has written about some new script tag support added in Dojo 0.9:
For a long time systems like Flex and Laszlo have had a corner on naturally mixing behavior with markup. HTML’s native <script> tag doesn’t provide any context, and worse, can’t provide a way to be triggered by a particular event or action (outside of proprietary extensions). Several use-cases are important:
- Scoped execution
- Event-driven execution
- Attachment vs. replacement
In Dojo 0.9 we took a hard look at them and devised
<script type="dojo/method">and<script type="dojo/connect">. Lets take a quick tour and show how it makes writing event handlers natural, building new widgets a snap, and over-riding built-in behavior trivial.
So, you can take code like this:
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<script type=“text/javascript”>
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dojo.addOnLoad(function(){
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var cp = dojo.widget.byId("cp");
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dojo.event.connect(cp, "onDownloadStart",
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function(){
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dojo.debug("started downloading:", cp.href);
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// advanced behavior here
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}
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);
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// more configuration…
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});
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</script>
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<div dojoType=“dojo:ContentPane” widgetId=“cp”>
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…
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</div>
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and replace it with the script tag way of attaching an event:
This definitely looks a little different on the eyes.
Read more on the source site
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