Hi,
Here is the order:
- Wicket generates the HTML at the server side (onConfigure(),
onBeforeRender(), onRender(), onAfterRender())
- Wicket writes the HTML to the HTTP response
- the HTML is rendered by the browser (i.e. the timings happen at that
phase!)
To get the values at the server you need to add AjaxEventBehavior("load")
to your page, so that it fires when the browser has fully rendered/loaded
the HTML. This behavior should collect the data you need and send it to the
server.
https://github.com/apache/wicket/blob/e79fcb8787187108e8a16b2ae9ababecfcc76cf2/wicket-core/src/main/java/org/apache/wicket/ajax/AjaxNewWindowNotifyingBehavior.java
is doing something similar. It reads 'window.name' and sends it to the
server to notify the application when the same page instance is loaded in
more than one tabs in the browser. You can use it as inspiration.
Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov
On Tue, Jul 26, 2016 at 9:38 PM, Damianos Metallidis <metalidi...@gmail.com>
wrote:
> Hello to all,
> I have used the library of timing.js(
> https://github.com/addyosmani/timing.js/) and it's very handy. I want to
> ask you although one question.
>
> I am running the above client library the client side of a localhost
> webapp. The thing is that i want to get the these javascript values on my
> server-side code. I am using wicket in the front-end.
> Is it possible to retrieve them? For example to get the
> /window.performance.timing.connectEnd
>
> /My problem here is that the page should be rendered to have the values of
> timing available.
> Perhaps any suggestion?
> I have used the onAfterRender() method but it returns me null:
>
> @Override
> protected void onAfterRenderChildren()
> {
> super.onAfterRenderChildren();
> // StringValue ce =
> RequestCycle.get().getRequest().getRequestParameters().getParameterValue("window.performance.timing.connectEnd");
>
> System.out.println(ce .toString()); // it's null...
> }
>
> My best regards,
> Damian
>
