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Posted to user@openmeetings.apache.org by Maxim Solodovnik <so...@gmail.com> on 2019/02/21 04:31:43 UTC
[DISCUSSION] download whiteboard as png
Hello All,
Recently Daniel Asher find out download whiteboard as png is not
working for huge white board
(10MB is huge :)) [1]
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
--
WBR
Maxim aka solomax
Re: [DISCUSSION] download whiteboard as png
Posted by Alvaro <zu...@gmail.com>.
Ok with you
...................
El jue, 21-02-2019 a las 11:31 +0700, Maxim Solodovnik escribió:
> Hello All,
>
> Recently Daniel Asher find out download whiteboard as png is not
> working for huge white board
> (10MB is huge :)) [1]
>
> 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
>
Re: auto recording -audio only!
Posted by Maxim Solodovnik <so...@gmail.com>.
Hello Stefan,
auto-recording the room, and then automatic creation of audio file is
definitely possible :)
On Thu, 28 Feb 2019 at 15:54, Stefan Kühl <st...@quatrekuehl.eu> wrote:
>
> Good Morning @all!
>
> I kept in mind that we discuss this topic some weeks ago, but I didn't find a reliable answer for my point of view. So please never mind if this was answered before and just give me a hint ;-)
>
> It is possible to to start auto recording with audio only if the first person is entering the conference-room? Maybe directly from the server?
>
> Greetz
>
> Stefan
--
WBR
Maxim aka solomax
auto recording -audio only!
Posted by Stefan Kühl <st...@quatrekuehl.eu>.
Good Morning @all!
I kept in mind that we discuss this topic some weeks ago, but I didn't
find a reliable answer for my point of view. So please never mind if
this was answered before and just give me a hint ;-)
It is possible to to start auto recording with audio only if the first
person is entering the conference-room? Maybe directly from the server?
Greetz
Stefan
Re: [DISCUSSION] download whiteboard as png
Posted by Maxim Solodovnik <so...@gmail.com>.
On Wed, 27 Feb 2019 at 21:11, Peter Dähn <da...@vcrp.de> wrote:
> Hi Maxim,
>
> works well. Also for long wb-pages.
>
> Text will be editable over language tool?
>
sure, as always :)))
>
> Greetings Peter
>
> Am 27.02.19 um 14:09 schrieb Maxim Solodovnik:
>
> Thanks Daniel,
> Will update the text :)
>
> On Wed, 27 Feb 2019 at 19:54, Daniel Ascher <ap...@aplustutoring.com>
> wrote:
>
>> Works well! Thanks. I think this is a good solution. However in English,
>> it should read:
>>
>> Please right click the image and choose "Save image as"
>>
>> Thanks! Dan
>>
>> On Tue, Feb 26, 2019 at 10:16 AM Maxim Solodovnik <so...@gmail.com>
>> wrote:
>>
>>> https://om.alteametasoft.com:8443/next
>>> is updated
>>> You can check my proposal :)
>>>
>>>
>>> On Tue, 26 Feb 2019 at 21:27, Daniel Ascher <
>>> aplusadmin@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 <so...@gmail.com>
>>>> wrote:
>>>>
>>>>> @All,
>>>>>
>>>>> we need to agree on proper solution for this issue :)
>>>>>
>>>>> On Mon, 25 Feb 2019 at 21:05, Maxim Solodovnik <so...@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 <
>>>>>> aplusadmin@aplustutoring.com> wrote:
>>>>>>
>>>>>>> Okay. Thanks for letting me know. Dan
>>>>>>>
>>>>>>> On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <
>>>>>>> solomax666@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 <
>>>>>>>> aplusadmin@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 <
>>>>>>>>> solomax666@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
>>>
>>
>>
>> --
>> 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
Re: [DISCUSSION] download whiteboard as png
Posted by Peter Dähn <da...@vcrp.de>.
Hi Maxim,
works well. Also for long wb-pages.
Text will be editable over language tool?
Greetings Peter
Am 27.02.19 um 14:09 schrieb Maxim Solodovnik:
> Thanks Daniel,
> Will update the text :)
>
> On Wed, 27 Feb 2019 at 19:54, Daniel Ascher
> <aplusadmin@aplustutoring.com <ma...@aplustutoring.com>>
> wrote:
>
> Works well! Thanks. I think this is a good solution. However in
> English, it should read:
>
> Please right click the image and choose "Save imageas"
>
> Thanks! Dan
>
> On Tue, Feb 26, 2019 at 10:16 AM Maxim Solodovnik
> <solomax666@gmail.com <ma...@gmail.com>> wrote:
>
> https://om.alteametasoft.com:8443/next
> is updated
> You can check my proposal :)
>
>
> On Tue, 26 Feb 2019 at 21:27, Daniel Ascher
> <aplusadmin@aplustutoring.com
> <ma...@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
> <solomax666@gmail.com <ma...@gmail.com>> wrote:
>
> @All,
>
> we need to agree on proper solution for this issue :)
>
> On Mon, 25 Feb 2019 at 21:05, Maxim Solodovnik
> <solomax666@gmail.com <ma...@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
> <aplusadmin@aplustutoring.com
> <ma...@aplustutoring.com>> wrote:
>
> Okay. Thanks for letting me know. Dan
>
> On Thu, Feb 21, 2019 at 11:12 AM Maxim
> Solodovnik <solomax666@gmail.com
> <ma...@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
> <aplusadmin@aplustutoring.com
> <ma...@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 <solomax666@gmail.com
> <ma...@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 <daehn@vcrp.de
> <ma...@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 <daehn@vcrp.de
>> <ma...@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
>
>
>
> --
> 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
Re: [DISCUSSION] download whiteboard as png
Posted by Maxim Solodovnik <so...@gmail.com>.
Thanks Daniel,
Will update the text :)
On Wed, 27 Feb 2019 at 19:54, Daniel Ascher <ap...@aplustutoring.com>
wrote:
> Works well! Thanks. I think this is a good solution. However in English,
> it should read:
>
> Please right click the image and choose "Save image as"
>
> Thanks! Dan
>
> On Tue, Feb 26, 2019 at 10:16 AM Maxim Solodovnik <so...@gmail.com>
> wrote:
>
>> https://om.alteametasoft.com:8443/next
>> is updated
>> You can check my proposal :)
>>
>>
>> On Tue, 26 Feb 2019 at 21:27, Daniel Ascher <ap...@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 <so...@gmail.com>
>>> wrote:
>>>
>>>> @All,
>>>>
>>>> we need to agree on proper solution for this issue :)
>>>>
>>>> On Mon, 25 Feb 2019 at 21:05, Maxim Solodovnik <so...@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 <
>>>>> aplusadmin@aplustutoring.com> wrote:
>>>>>
>>>>>> Okay. Thanks for letting me know. Dan
>>>>>>
>>>>>> On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <
>>>>>> solomax666@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 <
>>>>>>> aplusadmin@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 <
>>>>>>>> solomax666@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
>>
>
>
> --
> 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
Re: [DISCUSSION] download whiteboard as png
Posted by Daniel Ascher <ap...@aplustutoring.com>.
Works well! Thanks. I think this is a good solution. However in English, it
should read:
Please right click the image and choose "Save image as"
Thanks! Dan
On Tue, Feb 26, 2019 at 10:16 AM Maxim Solodovnik <so...@gmail.com>
wrote:
> https://om.alteametasoft.com:8443/next
> is updated
> You can check my proposal :)
>
>
> On Tue, 26 Feb 2019 at 21:27, Daniel Ascher <ap...@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 <so...@gmail.com>
>> wrote:
>>
>>> @All,
>>>
>>> we need to agree on proper solution for this issue :)
>>>
>>> On Mon, 25 Feb 2019 at 21:05, Maxim Solodovnik <so...@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 <
>>>> aplusadmin@aplustutoring.com> wrote:
>>>>
>>>>> Okay. Thanks for letting me know. Dan
>>>>>
>>>>> On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <
>>>>> solomax666@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 <
>>>>>> aplusadmin@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 <
>>>>>>> solomax666@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
>
--
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>
Re: [DISCUSSION] download whiteboard as png
Posted by Maxim Solodovnik <so...@gmail.com>.
https://om.alteametasoft.com:8443/next
is updated
You can check my proposal :)
On Tue, 26 Feb 2019 at 21:27, Daniel Ascher <ap...@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 <so...@gmail.com>
> wrote:
>
>> @All,
>>
>> we need to agree on proper solution for this issue :)
>>
>> On Mon, 25 Feb 2019 at 21:05, Maxim Solodovnik <so...@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 <
>>> aplusadmin@aplustutoring.com> wrote:
>>>
>>>> Okay. Thanks for letting me know. Dan
>>>>
>>>> On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <so...@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 <
>>>>> aplusadmin@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 <
>>>>>> solomax666@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
Re: [DISCUSSION] download whiteboard as png
Posted by Daniel Ascher <ap...@aplustutoring.com>.
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 <so...@gmail.com>
wrote:
> @All,
>
> we need to agree on proper solution for this issue :)
>
> On Mon, 25 Feb 2019 at 21:05, Maxim Solodovnik <so...@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 <ap...@aplustutoring.com>
>> wrote:
>>
>>> Okay. Thanks for letting me know. Dan
>>>
>>> On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <so...@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 <ap...@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 <so...@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>
Re: [DISCUSSION] download whiteboard as png
Posted by Maxim Solodovnik <so...@gmail.com>.
@All,
we need to agree on proper solution for this issue :)
On Mon, 25 Feb 2019 at 21:05, Maxim Solodovnik <so...@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 <ap...@aplustutoring.com>
> wrote:
>
>> Okay. Thanks for letting me know. Dan
>>
>> On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <so...@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 <ap...@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 <so...@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
Re: [DISCUSSION] download whiteboard as png
Posted by Maxim Solodovnik <so...@gmail.com>.
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 <ap...@aplustutoring.com>
wrote:
> Okay. Thanks for letting me know. Dan
>
> On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <so...@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 <ap...@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 <so...@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
Re: [DISCUSSION] download whiteboard as png
Posted by Daniel Ascher <ap...@aplustutoring.com>.
Okay. Thanks for letting me know. Dan
On Thu, Feb 21, 2019 at 11:12 AM Maxim Solodovnik <so...@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 <ap...@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 <so...@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>
Re: [DISCUSSION] download whiteboard as png
Posted by Maxim Solodovnik <so...@gmail.com>.
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 <ap...@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 <so...@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>
>
Re: [DISCUSSION] download whiteboard as png
Posted by Daniel Ascher <ap...@aplustutoring.com>.
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 <so...@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
>>>
>>>
>>>
>>>
>>>
>>
--
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Jenkintown, PA 19046
Office: 215.886.9188
Direct: 267.242.9640
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Re: [DISCUSSION] download whiteboard as png
Posted by Maxim Solodovnik <so...@gmail.com>.
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
>>
>>
>>
>>
>>
>
Re: [DISCUSSION] download whiteboard as png
Posted by Peter Dähn <da...@vcrp.de>.
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 <daehn@vcrp.de
> <ma...@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
>>>
>>
>
Re: [DISCUSSION] download whiteboard as png
Posted by Maxim Solodovnik <so...@gmail.com>.
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
>
>
>
>
>
Re: [DISCUSSION] download whiteboard as png
Posted by Peter Dähn <da...@vcrp.de>.
"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
>>
>
Re: [DISCUSSION] download whiteboard as png
Posted by Peter Dähn <da...@vcrp.de>.
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
>
Re: [DISCUSSION] download whiteboard as png
Posted by Peter Dähn <da...@vcrp.de>.
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
Re: [DISCUSSION] download whiteboard as png
Posted by Stefan Kühl <st...@quatrekuehl.eu>.
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 [1]]
>
> 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 [1]
Links:
------
[1] https://issues.apache.org/jira/browse/OPENMEETINGS-2018