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From Josh Canfield <joshcanfi...@gmail.com>
Subject Re: waitForPage / onDOMLoaded hybrid
Date Sun, 06 Mar 2011 23:44:43 GMT
> seems to work, but I can see the need to make the callbacks parameterised in
> the future (which currently isn't supported by Tapestry.onDOMLoaded)

Callbacks are closures, why do you need parameters?

> If something like this doesn't exist in tapestry already, I think it should.
I don't think we need to replicate functionality provided by
javascript libraries.

Josh

On Sun, Mar 6, 2011 at 3:12 PM, Paul Stanton <paul@mapshed.com.au> wrote:
> In lieu of a better (tapestry provided) solution, this is what i'm using. It
> seems to work, but I can see the need to make the callbacks parameterised in
> the future (which currently isn't supported by Tapestry.onDOMLoaded)
>
> function callWhenPageLoaded(callback)
> {
>    if (typeof(Tapestry) == "undefined")
>        throw("callWhenPageLoaded called too early");
>
>    if (Tapestry.pageLoaded)
>        callback.call(this);
>    else
>        Tapestry.onDOMLoaded(callback);
> }
>
> If something like this doesn't exist in tapestry already, I think it should.
>
> p.
>
> On 7/03/2011 9:44 AM, Paul Stanton wrote:
>>
>> Hi all,
>>
>> i'm using tapestry 5.1.0.5 on this particular project.
>>
>> I'm not 100% sure this isn't already available, but before duplicating
>> logic i thought I'd check...
>>
>> I need to be able to call a function at any point in the page state (ie
>> before it's loaded, during loading, after load) but have it wait until
>> tapestry.init has been called.
>>
>> Kind of how Tapestry.waitForPage works, except that if the page has not
>> loaded, instead of showing a dialog, it would register it for invoking once
>> the page is loaded.
>>
>> so in psuedo:
>>
>> function(callback)
>> {
>>    if(Tapestry.pageLoaded)
>>        invoke(callback);
>>    else
>>        Tapestry.onDOMLoaded(callback);
>> }
>>
>> 2 questions:
>> a) is this functionality already available? where?
>> b) would the above approach be fool-proof? ie would there be a case where
>> Tapestry.pageLoaded == false and Tapestry.onDOMLoaded would still not invoke
>> the callback?
>>
>> thanks, p.
>>
>>
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>
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