| Order of resources / external JS libraries [message #131945] |
Fri, 08 May 2009 00:47  |
Eclipse User |
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Originally posted by: AM-81.web.de
Hi,
I need to load some external JS libraries in a special order in my RAP
application, because there are some dependencies between them.
Is der a possibility to do this? In an HTML file I declare them
at the head and it works fine all the time.
Now I try to do the same with resources in the
org.eclipse.rap.ui.resources extension, but it doesn't work.
Without any changes it sometimes works and sometimes I get some JS
errors, that a class is not defined or unknown.
Is there a reason why the resources are not always called in the same order?
Thanks for hints
André
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| Re: Order of resources / external JS libraries [message #132657 is a reply to message #132027] |
Wed, 13 May 2009 11:57  |
| Eclipse User |
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Originally posted by: AM-81.web.de
Hi Rüdiger,
I do what you said. I register now only one resource and dynamically
register my libraries with js in the head.
Thanks for your help. :)
Maybe someone has the same problem, here is my code in the registered
js-file:
var scriptElement1 = document.createElement('script');
scriptElement1.type = 'text/javascript';
scriptElement1.src = '<jsLibrary1>.js';
var scriptElement2 = document.createElement('script');
scriptElement2.type = 'text/javascript';
scriptElement2.src = '<jsLibrary2>.js';
....
var head = document.getElementsByTagName('head')[0];
if( head ){
head.appendChild( scriptElement1 );
head.appendChild( scriptElement2 );
...
}
alert('short break');
the only not so nice thing is, the alert at the end. but it is needed,
otherway it could be that the tags would not correctly registered.
Rüdiger Herrmann schrieb:
> Andre,
>
> the internal storage of the extension registry seems not to care about
> the order in which extensions were declared.
>
> However I think this should be solved within RAP. An attribute to
> specify the order or something like a composite resource extension in
> which the application developer can return th resources in a specific
> order is needed. Feel free to file an enhancement request.
>
> In the meanwhile you could circumvent the issue if concatenate the JS
> files in the right oder and register them as one resource.
>
> HTH
> Rüdiger
>
> André Müller wrote:
>> Hi,
>> I need to load some external JS libraries in a special order in my RAP
>> application, because there are some dependencies between them.
>> Is der a possibility to do this? In an HTML file I declare them
>> at the head and it works fine all the time.
>> Now I try to do the same with resources in the
>> org.eclipse.rap.ui.resources extension, but it doesn't work.
>> Without any changes it sometimes works and sometimes I get some JS
>> errors, that a class is not defined or unknown.
>> Is there a reason why the resources are not always called in the same
>> order?
>>
>> Thanks for hints
>>
>> André
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| Re: Order of resources / external JS libraries [message #132696 is a reply to message #132657] |
Wed, 13 May 2009 12:51 |
 Rüdiger Herrmann
Messages: 581
Registered: July 2009 |
Senior Member |
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André,
just for the record, my suggestion was to *concatenate* the files.
I.e. copy the contents of fileA and fileB into a fileAB and register
this file instead.
That would save you the alter for the price of having a lengthy,
maybe harder to edit file.
Cheers,
Rüdiger
André Müller wrote:
> Hi Rüdiger,
>
> I do what you said. I register now only one resource and dynamically
> register my libraries with js in the head.
>
>
> Thanks for your help. :)
>
>
> Maybe someone has the same problem, here is my code in the registered
> js-file:
>
> var scriptElement1 = document.createElement('script');
> scriptElement1.type = 'text/javascript';
> scriptElement1.src = '<jsLibrary1>.js';
>
> var scriptElement2 = document.createElement('script');
> scriptElement2.type = 'text/javascript';
> scriptElement2.src = '<jsLibrary2>.js';
> ....
>
> var head = document.getElementsByTagName('head')[0];
> if( head ){
> head.appendChild( scriptElement1 );
> head.appendChild( scriptElement2 );
> ...
> }
>
> alert('short break');
>
>
> the only not so nice thing is, the alert at the end. but it is needed,
> otherway it could be that the tags would not correctly registered.
>
>
>
>
>
> Rüdiger Herrmann schrieb:
>> Andre,
>>
>> the internal storage of the extension registry seems not to care about
>> the order in which extensions were declared.
>>
>> However I think this should be solved within RAP. An attribute to
>> specify the order or something like a composite resource extension in
>> which the application developer can return th resources in a specific
>> order is needed. Feel free to file an enhancement request.
>>
>> In the meanwhile you could circumvent the issue if concatenate the JS
>> files in the right oder and register them as one resource.
>>
>> HTH
>> Rüdiger
>>
>> André Müller wrote:
>>> Hi,
>>> I need to load some external JS libraries in a special order in my
>>> RAP application, because there are some dependencies between them.
>>> Is der a possibility to do this? In an HTML file I declare them
>>> at the head and it works fine all the time.
>>> Now I try to do the same with resources in the
>>> org.eclipse.rap.ui.resources extension, but it doesn't work.
>>> Without any changes it sometimes works and sometimes I get some JS
>>> errors, that a class is not defined or unknown.
>>> Is there a reason why the resources are not always called in the same
>>> order?
>>>
>>> Thanks for hints
>>>
>>> André
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