Thanks for your suggestions. Yes, we are doing incremental loading. I will 
try out your suggestions.

On Saturday, 18 October 2014 03:23:29 UTC+5:30, Steve C wrote:
>
>
> I'm guessing that you're doing incremental loading - that as soon as the 
> user reaches the bottom of the current content, you get more?
>
> You could remove the scroll handler when you start to load the HTML, and 
> then restore it when the HTML has been received. Or have the loading 
> mechanism set a flag and unset it when done, and the scroll handler checks 
> that flag before doing anything (maybe better to use an integer count, 
> increment when starting load, decrement when complete, and scrolll handler 
> only works when it's zero).
>
> But, if there are images in the received content, they will be loading 
> asynchronously after that, which will affect the size of the content.  The 
> best* way I can think of to handle that is to scan the received HTML 
> looking for img tags, and then add a native JS load/error handler to each 
> one, and keep a running count.  The load handler would decrement the count, 
> and, when it reaches 0, all images will be loaded.  You might still need a 
> deferred command, since just because the image has loaded doesn't mean that 
> the DOM has reflowed.
>
> *Maybe the second best way.  If you used an iframe as your loader instead 
> of GWT's Ajax mechanism, you could set a readystatechange handler.  
> readyState 4 is supposed to mean that everything has been received, 
> including images.  But, I don't know how well supported that is across 
> browsers.
>
>>

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