Hi,
On Thu, Apr 10, 2014 at 12:36 PM, Tobias Gierke < tobias.gie...@voipfuture.com> wrote: > Hi, > > Hi, >> >> >> >> On Thu, Apr 10, 2014 at 1:13 PM, Tobias Gierke < >> tobias.gie...@voipfuture.com >> >>> wrote: >>> Hi, >>> >>> What do you exactly mean by the rendering of the page after download >>> >>>> completed? You repaint a part of the screen via AJAX? And this is the >>>> one >>>> giving problem with images? >>>> >>>> Good point. I just investigated the AJAX response returned by the >>> server >>> when clicking the 'Start download' button on the modal dialog and I >>> noticed >>> that along with the JavaScript snippet that does the "setTimeout(...)" >>> there are also a lot of AJAX component updates that are obviously >>> generated >>> by components with overridden onEvent() methods. I didn't write the code >>> so >>> I wasn't aware of this :/ >>> >>> I suspect that the issue I'm seeing is caused by the Wicket AJAX library >>> being interrupted by the "setTimeout()" call while processing the >>> component >>> updates... proving this will unfortunately take some time since the page >>> has a lot of different components that all override onEvent() ... >>> >>> JavaScript is single-threaded. There is no way to interrupt it. >> By using setTimeout/setInterval functions you just add tasks to the queue >> that this single thread processes. >> > I stand corrected ;) But how come - given that setTimeout() just adds a > task to some "queue" - the actual magnitude of the timeout has an effect ? > My queues are usually processed first-to-last ;) > Probably the time out just influence the download of images: e.g. maybe by making window.location.href='" + url + "'\", 100); You are telling the browser "stop loading images, we are processing anew document" > > Cheers, > Tobias > > >> >> Thanks, >>> Tobias >>> >>> >>> >>> >>> The page contains some dynamic images/icons that are included via >>>> >>>>> Image/DynamicImageResource (all have a 'antiCache' parameter in their >>>>> URL >>>>> as well as a "last-modified" date that equals "now()" ). Both chrome >>>>> and >>>>> firefox re-request these images after the download has completed and >>>>> looking at the network traffic/PCAP file I captured , I can see that >>>>> Wicket >>>>> is in fact delivering the PNGs to the browser. >>>>> >>>>> But: Chrome still renders these icons using the 'image is broken' >>>>> placeholder icon and Firefox/firebug shows the image downloads as >>>>> 'never >>>>> completed' / 0 bytes downloaded (see attached screenshots). Firebug >>>>> also >>>>> shows a pending GET request for a JavaScript file along with the image >>>>> download requests so the issue may be related to either caching or the >>>>> Wicket request processing in general. >>>>> >>>>> Any ideas ? >>>>> >>>>> Thanks in advance, >>>>> Tobias >>>>> >>>>> >>>>> >>>>> --------------------------------------------------------------------- >>>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >>>>> For additional commands, e-mail: users-h...@wicket.apache.org >>>>> >>>>> >>>>> >>>> -- >>> Tobias Gierke >>> Development >>> >>> VOIPFUTURE GmbH Wendenstraße 4 20097 Hamburg, Germany >>> Phone +49 40 688 900 111 Fax +49 40 688 900 199 >>> Email tobias.gie...@voipfuture.com Web http://www.voipfuture.com >>> CEO Jan Bastian >>> >>> Commercial Court AG Hamburg HRB 109896, VAT ID DE263738086 >>> >>> >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >>> For additional commands, e-mail: users-h...@wicket.apache.org >>> >>> >>> > > -- > Tobias Gierke > Development > > VOIPFUTURE GmbH Wendenstraße 4 20097 Hamburg, Germany > Phone +49 40 688 900 111 Fax +49 40 688 900 199 > Email tobias.gie...@voipfuture.com Web http://www.voipfuture.com > CEO Jan Bastian > > Commercial Court AG Hamburg HRB 109896, VAT ID DE263738086 > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > > -- Regards - Ernesto Reinaldo Barreiro
