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Posted to users@wicket.apache.org by Jordi Deu-Pons <jo...@jordeu.net> on 2012/04/26 15:46:01 UTC

Wicket 6-beta1 - How to call a javascript function after component render?

Hi,

 I'm developing a component that needs to call a javascript function
after it's rendered (throw and AJAX update or a normal request).

 I get it running like this:

    @Override
    protected void onBeforeRender() {
        super.onBeforeRender();
        AjaxRequestTarget target =
RequestCycle.get().find(AjaxRequestTarget.class);
        if (target != null) {
             target.appendJavaScript( getInitJavaScript() );
        }
    }

    @Override
    public void renderHead(IHeaderResponse response) {
        response.render(JavaScriptHeaderItem.forScript(
                "Wicket.Event.add(window, \"load\", function(event) {
" + getInitJavaScript() + " });",
                "load-codemirror-js")
        );
    }

But, Is there a better way?

Thanks!

-- 
a10! i fins aviat.
J:-Deu

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Re: Wicket 6-beta1 - How to call a javascript function after component render?

Posted by Jordi Deu-Pons <jo...@jordeu.net>.
Perfect, it works.

Thanks!

On Thu, Apr 26, 2012 at 3:52 PM, Martin Grigorov <mg...@apache.org> wrote:
> Hi,
>
> All you need is #renderHead() that does:
>   response.render(OnDomReadyHeaderItem.forScript(getInitJavaScript())
>
> initJS will be delivered to the page after each re-render of the
> component - both Ajax and non-Ajax.
>
> On Thu, Apr 26, 2012 at 4:46 PM, Jordi Deu-Pons <jo...@jordeu.net> wrote:
>> Hi,
>>
>>  I'm developing a component that needs to call a javascript function
>> after it's rendered (throw and AJAX update or a normal request).
>>
>>  I get it running like this:
>>
>>    @Override
>>    protected void onBeforeRender() {
>>        super.onBeforeRender();
>>        AjaxRequestTarget target =
>> RequestCycle.get().find(AjaxRequestTarget.class);
>>        if (target != null) {
>>             target.appendJavaScript( getInitJavaScript() );
>>        }
>>    }
>>
>>    @Override
>>    public void renderHead(IHeaderResponse response) {
>>        response.render(JavaScriptHeaderItem.forScript(
>>                "Wicket.Event.add(window, \"load\", function(event) {
>> " + getInitJavaScript() + " });",
>>                "load-codemirror-js")
>>        );
>>    }
>>
>> But, Is there a better way?
>>
>> Thanks!
>>
>> --
>> a10! i fins aviat.
>> J:-Deu
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>
>
>
> --
> Martin Grigorov
> jWeekend
> Training, Consulting, Development
> http://jWeekend.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>



-- 
a10! i fins aviat.
J:-Deu

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Re: Wicket 6-beta1 - How to call a javascript function after component render?

Posted by Martin Grigorov <mg...@apache.org>.
Hi,

All you need is #renderHead() that does:
  response.render(OnDomReadyHeaderItem.forScript(getInitJavaScript())

initJS will be delivered to the page after each re-render of the
component - both Ajax and non-Ajax.

On Thu, Apr 26, 2012 at 4:46 PM, Jordi Deu-Pons <jo...@jordeu.net> wrote:
> Hi,
>
>  I'm developing a component that needs to call a javascript function
> after it's rendered (throw and AJAX update or a normal request).
>
>  I get it running like this:
>
>    @Override
>    protected void onBeforeRender() {
>        super.onBeforeRender();
>        AjaxRequestTarget target =
> RequestCycle.get().find(AjaxRequestTarget.class);
>        if (target != null) {
>             target.appendJavaScript( getInitJavaScript() );
>        }
>    }
>
>    @Override
>    public void renderHead(IHeaderResponse response) {
>        response.render(JavaScriptHeaderItem.forScript(
>                "Wicket.Event.add(window, \"load\", function(event) {
> " + getInitJavaScript() + " });",
>                "load-codemirror-js")
>        );
>    }
>
> But, Is there a better way?
>
> Thanks!
>
> --
> a10! i fins aviat.
> J:-Deu
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>



-- 
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com

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