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Where is the source code of onBlur() or onreadystatechange() eventshandlers , are they in Browser?

Himanshu Bhatnagar
Greenhorn

Joined: Sep 27, 2011
Posts: 9
Where can i find the source code of onBlur() or onchange event handlers? are the defination of these written in Browser? how is browser able to understand events? can i change the browser code to make my custom event handlers?

Eric Pascarello
author
Rancher

Joined: Nov 08, 2001
Posts: 15376
    
    6
Source code? Decompile the browser and you can see it.

What are you trying to do exactly?


Eric
Aniruddh Joshi
Ranch Hand

Joined: Jul 29, 2008
Posts: 275

Maybe you can download the code of an open source browser and see the code.

My rough idea of it would be.. browser would have some listener/observer design pattern implemented.
Where an object watches the state of the DOM object.
There would be a boolean like isControlOnMe which is reset to false when a user moves out of the field.
Now the listener calls every function written against the onBlur attribute once state of isControlOnMe switches from true to false.

Anrd
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subject: Where is the source code of onBlur() or onreadystatechange() eventshandlers , are they in Browser?
 
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