[jira] [Commented] (WICKET-4216) Enhance AjaxServerAndClientTimeFilter to use HTML5's Navigation Timing API

["Martin Grigorov (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/WICKET-4216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13151109#comment-13151109 ] 

Martin Grigorov commented on WICKET-4216:
-----------------------------------------

I think this ticket should be "Trivial" :-)
NavigationTiming is not widely supported. It has been added in Firefox in ver. 7. I'm not sure what is the state in IE but I'd bet IE7/8 don't have it.
Maybe we should move that logic to wicket-ajax-debug.js (the code for the Ajax Debug Window) because status bar is also not that common these days and window.defaultStatus is not immediately visible anymore. There we can add check for support of 'performance' and fallback to the old code.
                
> Enhance AjaxServerAndClientTimeFilter to use HTML5's Navigation Timing API
> --------------------------------------------------------------------------
>
>                 Key: WICKET-4216
>                 URL: https://issues.apache.org/jira/browse/WICKET-4216
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket
>    Affects Versions: 1.6.0
>         Environment: All
>            Reporter: Robert McGuinness
>            Priority: Trivial
>
> in AjaxServerAndClientTimeFilter.java, instead of: 
> map.put("clienttime", "' + (new Date().getTime() - clientTimeVariable)/1000 +  's");
> Wicket could use:
> map.put("clienttime", "' + (new Date().getTime() - performance.timing.navigationStart)/1000 +  's");
> which could output something like:
> Server parsetime: .01s, User-perceived page loading time: .02s
> https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.html

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