https://om.alteametasoft.com:8443/next
is updated
You can check my proposal :)


On Tue, 26 Feb 2019 at 21:27, Daniel Ascher <aplusad...@aplustutoring.com>
wrote:

> Please let us know when the demo-next version is available so we try it
> out as you suggested. Thanks Maxim!
>
> Dan
>
> On Tue, Feb 26, 2019 at 7:44 AM Maxim Solodovnik <solomax...@gmail.com>
> wrote:
>
>> @All,
>>
>> we need to agree on proper solution for this issue :)
>>
>> On Mon, 25 Feb 2019 at 21:05, Maxim Solodovnik <solomax...@gmail.com>
>> wrote:
>>
>>> Hello All,
>>>
>>> Here are some details
>>>
>>> by default Tomcat has limitation of 2Mb for post data [1] (maxPostSize)
>>> You can change this in OM 4.0.x by changing conf/jee-container.xml
>>> You need to add
>>>              <property name="connectorProperties">
>>>                           <map>
>>>                                        <entry key="maxPostSize"
>>> value="40000000"/>
>>>                           </map>
>>>              </property>
>>> to '<bean name="httpConnector" .........>'
>>>
>>> This should fix Huge PDF download
>>>
>>>
>>> According to PNG download: it can be done "by click" BUT
>>> It will only 100% work if it will be dobe "via server" i.e.
>>> 1) image will be prepared in client's browser
>>> 2) uploaded to server
>>> 3) then immediately downloaded
>>> This "server round trip" might be very expensive
>>>
>>> You can see how proposed pop-up dialog will look like [2]
>>> I can update demo-next with working prototype so you can try it :)
>>>
>>>
>>> [1] https://tomcat.apache.org/tomcat-9.0-doc/config/http.html
>>> [2] https://www.dropbox.com/s/r3pbftfvbp1fdj7/DownloadAsPng.png?dl=0
>>>
>>>
>>> On Fri, 22 Feb 2019 at 01:46, Daniel Ascher <
>>> aplusad...@aplustutoring.com> wrote:
>>>
>>>> Okay. Thanks for letting me know. Dan
>>>>
>>>> On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <solomax...@gmail.com>
>>>> wrote:
>>>>
>>>>> The quality will not suffer
>>>>> The image might be huge, but will be displayed as preview to consume
>>>>> reasonable area on the screen
>>>>>
>>>>> The reason to display this dialog is: somehow "just save" is silently
>>>>> fail in browser .....
>>>>>
>>>>> On Thu, Feb 21, 2019, 22:58 Daniel Ascher <
>>>>> aplusad...@aplustutoring.com> wrote:
>>>>>
>>>>>> I think this means that the PNG will be a relatively lower quality
>>>>>> image than the PDF version. Is that correct?
>>>>>>
>>>>>> Also, is it possible to have a "Save" or "Download" button on the
>>>>>> preview box, rather than telling the user to right-click?
>>>>>>
>>>>>> Thanks. Dan
>>>>>>
>>>>>> On Thu, Feb 21, 2019 at 9:07 AM Maxim Solodovnik <
>>>>>> solomax...@gmail.com> wrote:
>>>>>>
>>>>>>> Thanks :))
>>>>>>>
>>>>>>> Prepared image will have constant size something like 320x240, sort
>>>>>>> of preview :)
>>>>>>>
>>>>>>> On Thu, Feb 21, 2019, 20:00 Peter Dähn <da...@vcrp.de> wrote:
>>>>>>>
>>>>>>>> ok.. now I got it... sorry for that...
>>>>>>>>
>>>>>>>> The prepared scaled image has the dimension of the current client
>>>>>>>> view or the wb area?
>>>>>>>>
>>>>>>>> PS: much fun on your trip...
>>>>>>>>
>>>>>>>> Am 21.02.19 um 13:12 schrieb Maxim Solodovnik:
>>>>>>>>
>>>>>>>> Hello All,
>>>>>>>>
>>>>>>>> Am currently ooo (doing mountain skiing :)
>>>>>>>> Will try to answer in one email
>>>>>>>>
>>>>>>>> 1 save as pdf works, but for huge pdfs it requires jee*.xml tuning
>>>>>>>>
>>>>>>>> 2 right-click "save as" will not work on white-board.
>>>>>>>> As i wrote in initial email:
>>>>>>>>
>>>>>>>> when "Download as PNG" is clicked
>>>>>>>> 1) image is being prepared on the client
>>>>>>>> 2) small dialog with scaled image and text 'Please right click the
>>>>>>>> image and choose "Save as"' is displayed to the user
>>>>>>>>
>>>>>>>>
>>>>>>>> This is not yet implemented :)
>>>>>>>>
>>>>>>>> On Thu, Feb 21, 2019, 18:48 Peter Dähn <da...@vcrp.de> wrote:
>>>>>>>>
>>>>>>>>> "Save as" of smaller pics on wb also ends up with those empty
>>>>>>>>> pics. But right after draw on it, wb with pic will be saved (doesn't 
>>>>>>>>> help
>>>>>>>>> with large pics).
>>>>>>>>>
>>>>>>>>> The download in the Files-tab works so far.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> But both JPG and original saves a .jpg-file!?
>>>>>>>>>
>>>>>>>>> Greetings Peter
>>>>>>>>>
>>>>>>>>> Am 21.02.19 um 09:19 schrieb Peter Dähn:
>>>>>>>>>
>>>>>>>>> and save as ends up in an empty png... this doesn't work as fix...
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Am 21.02.19 um 08:35 schrieb Peter Dähn:
>>>>>>>>>
>>>>>>>>> Hi there,
>>>>>>>>>
>>>>>>>>> Download as pdf doesn't work either...
>>>>>>>>>
>>>>>>>>> This one causes an error...
>>>>>>>>>
>>>>>>>>> ERROR 02-21 08:28:08.199 o.a.o.w.r.w.AbstractWbPanel:70
>>>>>>>>> [0.0-5443-exec-8] - Unexpected error while processing wbAction
>>>>>>>>> java.lang.NullPointerException: Name is null
>>>>>>>>>     at java.base/java.lang.Enum.valueOf(Enum.java:238)
>>>>>>>>>     at
>>>>>>>>> org.apache.openmeetings.web.room.wb.WbAction.valueOf(WbAction.java:21)
>>>>>>>>>     at
>>>>>>>>> org.apache.openmeetings.web.room.wb.AbstractWbPanel$1.respond(AbstractWbPanel.java:65)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:598)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.core.request.handler.ListenerRequestHandler.internalInvoke(ListenerRequestHandler.java:306)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.core.request.handler.ListenerRequestHandler.invoke(ListenerRequestHandler.java:280)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.core.request.handler.ListenerRequestHandler.invokeListener(ListenerRequestHandler.java:222)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.core.request.handler.ListenerRequestHandler.respond(ListenerRequestHandler.java:208)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:914)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:65)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:282)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:253)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:221)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.protocol.ws.AbstractUpgradeFilter.processRequestCycle(AbstractUpgradeFilter.java:70)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:206)
>>>>>>>>>     at
>>>>>>>>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:299)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>>>>>>>>>     at
>>>>>>>>> org.red5.logging.LoggerContextFilter.doFilter(LoggerContextFilter.java:84)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:607)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
>>>>>>>>>     at
>>>>>>>>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
>>>>>>>>>     at
>>>>>>>>> org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
>>>>>>>>>     at
>>>>>>>>> org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
>>>>>>>>>     at
>>>>>>>>> org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)
>>>>>>>>>     at
>>>>>>>>> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
>>>>>>>>>     at
>>>>>>>>> org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
>>>>>>>>>     at
>>>>>>>>> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
>>>>>>>>>     at
>>>>>>>>> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
>>>>>>>>>     at
>>>>>>>>> org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
>>>>>>>>>     at java.base/java.lang.Thread.run(Thread.java:834)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> In general I think simply point to the "Save as" dialog isn't very
>>>>>>>>> handy.
>>>>>>>>>
>>>>>>>>> Greetings Peter
>>>>>>>>>
>>>>>>>>> Am 21.02.19 um 06:24 schrieb Stefan Kühl:
>>>>>>>>>
>>>>>>>>> Morning ;-)
>>>>>>>>>
>>>>>>>>> Great, that should work fine.
>>>>>>>>>
>>>>>>>>> Greetz
>>>>>>>>>
>>>>>>>>> Stefan
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Am 21.02.2019 05:31, schrieb Maxim Solodovnik:
>>>>>>>>>
>>>>>>>>> Hello All,
>>>>>>>>>
>>>>>>>>> Recently Daniel Asher find out download whiteboard as png is not
>>>>>>>>> working for huge white board
>>>>>>>>> (10MB is huge :)) [1 
>>>>>>>>> <https://issues.apache.org/jira/browse/OPENMEETINGS-2018>]
>>>>>>>>>
>>>>>>>>> This seems to be sort of browser limitation, there is no error or
>>>>>>>>> whatever, download just silently fail for big white boards
>>>>>>>>>
>>>>>>>>> What I propose is to change the behavior of 'Download as PNG' as 
>>>>>>>>> follows:
>>>>>>>>> when "Download as PNG" is clicked
>>>>>>>>> 1) image is being prepared on the client
>>>>>>>>> 2) small dialog with scaled image and text 'Please right click the
>>>>>>>>> image and choose "Save as"' is displayed to the user
>>>>>>>>>
>>>>>>>>> WDYT?
>>>>>>>>>
>>>>>>>>> [1] https://issues.apache.org/jira/browse/OPENMEETINGS-2018
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>> --
>>>>>> Daniel Ascher, M.Ed.
>>>>>> President
>>>>>> A+ Test Prep and Tutoring
>>>>>> "Creating Bright Futures"
>>>>>>
>>>>>> 505 York Road, Suite 6
>>>>>> Jenkintown, PA 19046
>>>>>> Office: 215.886.9188
>>>>>> Direct: 267.242.9640
>>>>>> Click here to schedule a phone call with me.
>>>>>> <https://www.aplustutoring.com/meetings/aplusadmin/phone-call>
>>>>>> Sign Up for A+ News and Test Prep Tips!
>>>>>> <https://www.aplustutoring.com/educational-blog-articles-subscription>
>>>>>> <http://aplustutoring.com>
>>>>>>
>>>>>
>>>>
>>>> --
>>>> Daniel Ascher, M.Ed.
>>>> President
>>>> A+ Test Prep and Tutoring
>>>> "Creating Bright Futures"
>>>>
>>>> 505 York Road, Suite 6
>>>> Jenkintown, PA 19046
>>>> Office: 215.886.9188
>>>> Direct: 267.242.9640
>>>> Click here to schedule a phone call with me.
>>>> <https://www.aplustutoring.com/meetings/aplusadmin/phone-call>
>>>> Sign Up for A+ News and Test Prep Tips!
>>>> <https://www.aplustutoring.com/educational-blog-articles-subscription>
>>>> <http://aplustutoring.com>
>>>>
>>>
>>>
>>> --
>>> WBR
>>> Maxim aka solomax
>>>
>>
>>
>> --
>> WBR
>> Maxim aka solomax
>>
>
>
> --
> Daniel Ascher, M.Ed.
> President
> A+ Test Prep and Tutoring
> "Creating Bright Futures"
>
> 505 York Road, Suite 6
> Jenkintown, PA 19046
> Office: 215.886.9188
> Direct: 267.242.9640
> Click here to schedule a phone call with me.
> <https://www.aplustutoring.com/meetings/aplusadmin/phone-call>
> Sign Up for A+ News and Test Prep Tips!
> <https://www.aplustutoring.com/educational-blog-articles-subscription>
> <http://aplustutoring.com>
>


-- 
WBR
Maxim aka solomax

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