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conditional loading of external JS ressources [message #140118]

Mon, 13 July 2009 09:14

Lars Martin

Messages: 24
Registered: July 2009

Junior Member

A custom RAP widget on top of OpenLayers (www.openlayers.org) map
control makes heavy use of external JavaScript ressources.

Is there any way to load the external JavaScript files under the
condition it is really needed? Currently all ressources are defined in
plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.2"?>
<plugin>
<extension id="de.itemis.eclipse.rap.map"
point="org.eclipse.rap.ui.resources">
<resource class="x.y.z.YahooResource" />
...
</extension>
</plugin>

All JavaScript ressources will be loaded at runtime and included in the
RAP application even if you don't need that JavaScipt because you don't
do Yahoo specific things.

Any hints?

Kindest regards, Lars

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Re: conditional loading of external JS ressources [message #140447 is a reply to message #140118]

Wed, 15 July 2009 10:18

Rüdiger Herrmann

Messages: 581
Registered: July 2009

Senior Member

Lars,

when using the RAP resource extension it is currently not possible
to load resources on demand.
However you can try to load the external Javascript without using
the resource extension. E.g. send an Ajax request that loads the
external Javascript code before the dependant code is executed.

HTH
Rüdiger

Lars Martin wrote:
>
> A custom RAP widget on top of OpenLayers (www.openlayers.org) map
> control makes heavy use of external JavaScript ressources.
>
> Is there any way to load the external JavaScript files under the
> condition it is really needed? Currently all ressources are defined in
> plugin.xml
>
> <?xml version="1.0" encoding="UTF-8"?>
> <?eclipse version="3.2"?>
> <plugin>
> <extension id="de.itemis.eclipse.rap.map"
> point="org.eclipse.rap.ui.resources">
> <resource class="x.y.z.YahooResource" />
> ...
> </extension>
> </plugin>
>
> All JavaScript ressources will be loaded at runtime and included in the
> RAP application even if you don't need that JavaScipt because you don't
> do Yahoo specific things.
>
> Any hints?
>
> Kindest regards, Lars

Report message to a moderator

Re: conditional loading of external JS ressources [message #140456 is a reply to message #140447]

Thu, 16 July 2009 10:20

Lars Martin

Messages: 24
Registered: July 2009

Junior Member

Rüdiger, dynamic script loading could be a solution. Thanks for the
hint. Lars

Rüdiger Herrmann wrote:
> Lars,
>
> when using the RAP resource extension it is currently not possible to
> load resources on demand.
> However you can try to load the external Javascript without using the
> resource extension. E.g. send an Ajax request that loads the external
> Javascript code before the dependant code is executed.
>
> HTH
> Rüdiger
>
> Lars Martin wrote:
>>
>> A custom RAP widget on top of OpenLayers (www.openlayers.org) map
>> control makes heavy use of external JavaScript ressources.
>>
>> Is there any way to load the external JavaScript files under the
>> condition it is really needed? Currently all ressources are defined in
>> plugin.xml
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <?eclipse version="3.2"?>
>> <plugin>
>> <extension id="de.itemis.eclipse.rap.map"
>> point="org.eclipse.rap.ui.resources">
>> <resource class="x.y.z.YahooResource" />
>> ...
>> </extension>
>> </plugin>
>>
>> All JavaScript ressources will be loaded at runtime and included in
>> the RAP application even if you don't need that JavaScipt because you
>> don't do Yahoo specific things.
>>
>> Any hints?
>>
>> Kindest regards, Lars

Report message to a moderator

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