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Posted to dev@wicket.apache.org by Maxim Solodovnik <so...@gmail.com> on 2014/12/04 22:10:35 UTC
Re: Timezone detection in Wicket
I would love to have library for such automatic detection
But the list of time zones is limited, and it currently determines my
current time zone wrong :(
I'll check it's code and will try to enhance mine, I'll try to enhance my
code
In case you prefer to use this library I would vote for that since current
wicket code is also not very good :(
I believe this library can be used and enhanced.
On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <so...@gmail.com>
wrote:
> Thanks will try to check :)
>
> On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <mg...@apache.org>
> wrote:
>
>> Hi Maxim,
>>
>> Check http://joshowens.me/dealing-with-timezones-in-javascript/. It may
>> be
>> in use for you.
>>
>> Martin Grigorov
>> Wicket Training and Consulting
>> https://twitter.com/mtgrigorov
>>
>> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <so...@gmail.com>
>> wrote:
>>
>> > OK, will try to do it after ApacheConEU
>> > Thanks for the review!
>> >
>> > On 11 November 2014 14:33, Martin Grigorov <mg...@apache.org>
>> wrote:
>> >
>> > > I find the knowledge of the client timezone generally useful!
>> > > If you improve the points in my last mail and integrate it
>> > > in wicket-browser-info.js then it has better chance of being merged
>> ;-)
>> > >
>> > > Martin Grigorov
>> > > Wicket Training and Consulting
>> > > https://twitter.com/mtgrigorov
>> > >
>> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
>> solomax666@gmail.com
>> > >
>> > > wrote:
>> > >
>> > > > you are right :(
>> > > > I can improve it if it worth so
>> > > >
>> > > > The idea was to get client timezone rulez using JS: the exact DST
>> > switch
>> > > > start/end date/time
>> > > > send this data to the server and then find Java timezone with best
>> > match
>> > > >
>> > > >
>> > > > On 11 November 2014 14:24, Martin Grigorov <mg...@apache.org>
>> > wrote:
>> > > >
>> > > > > Hi Maxim,
>> > > > >
>> > > > >
>> > > >
>> > >
>> >
>> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
>> > > > > is not very usable in its current state.
>> > > > > My issues with it:
>> > > > > - no documentation
>> > > > > - no tests
>> > > > > - uses short named variables and method names (thus hard to
>> follow)
>> > > > > - ...
>> > > > >
>> > > > > I have forked it so I can use it as inspiration if I need it
>> later.
>> > > > > Feel free to remove it.
>> > > > >
>> > > > > Thanks!
>> > > > >
>> > > > > Martin Grigorov
>> > > > > Wicket Training and Consulting
>> > > > > https://twitter.com/mtgrigorov
>> > > > >
>> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
>> > > solomax666@gmail.com>
>> > > > > wrote:
>> > > > >
>> > > > > > @Martin
>> > > > > >
>> > > > > > were you able to take a look at this code?
>> > > > > > Is it look useful? Or I can remove it?
>> > > > > >
>> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
>> solomax666@gmail.com
>> > >
>> > > > > wrote:
>> > > > > >
>> > > > > > > Finally was able to create prototype:
>> > > > > > https://github.com/solomax/tzdetect
>> > > > > > > Maybe you can find it (or parts of it) usable
>> > > > > > >
>> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
>> > solomax666@gmail.com>
>> > > > > > wrote:
>> > > > > > >
>> > > > > > >> I believe if TZ rulez will be detected on client side, and TZ
>> > > itself
>> > > > > on
>> > > > > > >> server side it might find user TZ good enough. (due to TZ
>> list
>> > > with
>> > > > > > rulez
>> > > > > > >> will be maintained by java vendor, not JS library itself)
>> > > > > > >> will try to modify the code and provide quickstart
>> > > > > > >>
>> > > > > > >>
>> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
>> > mgrigorov@apache.org>
>> > > > > > wrote:
>> > > > > > >>
>> > > > > > >>> see https://github.com/moment/moment-timezone/issues/55
>> > > > > > >>> if Moment.js cannot do it then I don't think we will do it
>> > > > > > >>>
>> > > > > > >>> Martin Grigorov
>> > > > > > >>> Wicket Training and Consulting
>> > > > > > >>> https://twitter.com/mtgrigorov
>> > > > > > >>>
>> > > > > > >>>
>> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
>> > > > > > solomax666@gmail.com>
>> > > > > > >>> wrote:
>> > > > > > >>>
>> > > > > > >>> > there seems to be timezones with more than 1 dst start per
>> > year
>> > > > :(
>> > > > > > >>> > code should be updated to reflect this :(
>> > > > > > >>> >
>> > > > > > >>> >
>> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
>> > > > solomax666@gmail.com>
>> > > > > > >>> wrote:
>> > > > > > >>> >
>> > > > > > >>> > > was tested against multiple Time zones listed here:
>> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and own TZ
>> > > > > > >>> (Asia/Novosibirsk)
>> > > > > > >>> > >
>> > > > > > >>> > >
>> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
>> > > > > solomax666@gmail.com>
>> > > > > > >>> > wrote:
>> > > > > > >>> > >
>> > > > > > >>> > >> here is the JS code
>> > > > > > >>> > https://gist.github.com/solomax/e86cc77694d67120b8f5
>> > > > > > >>> > >> to get DST start date/time (if any)
>> > > > > > >>> > >> only minute offset was not tested due to impossibili to
>> > set
>> > > TZ
>> > > > > > >>> "Chatham
>> > > > > > >>> > >> Island" on my Ubuntu)
>> > > > > > >>> > >>
>> > > > > > >>> > >> similar code can be added to get DST end date/time
>> > > > > > >>> > >>
>> > > > > > >>> > >> the code also might need to be "polished" a little
>> > > > > > >>> > >>
>> > > > > > >>> > >>
>> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
>> > > > > mgrigorov@apache.org>
>> > > > > > >>> > wrote:
>> > > > > > >>> > >>
>> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
>> > > > > > solomax666@gmail.com>
>> > > > > > >>> > >>> wrote:
>> > > > > > >>> > >>> >
>> > > > > > >>> > >>> > Actually my code can be extended to get
>> > > > > > >>> > >>> > 1) if TZ has DST or not
>> > > > > > >>> > >>> > 2) what month DST happening
>> > > > > > >>> > >>> > 3) the day of month DST happening
>> > > > > > >>> > >>> > 4) hour of day DST happening
>> > > > > > >>> > >>> >
>> > > > > > >>> > >>> > I believe after all this info is available the list
>> of
>> > > time
>> > > > > > zones
>> > > > > > >>> > with
>> > > > > > >>> > >>> > certain offset can be reduced to better match
>> current
>> > > user
>> > > > > TZ.
>> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
>> > > > > > >>> > >>>
>> > > > > > >>> > >>> This will increase the chance to include it ! ;-)
>> > > > > > >>> > >>>
>> > > > > > >>> > >>> >
>> > > > > > >>> > >>> >
>> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
>> > > > > > mgrigorov@apache.org
>> > > > > > >>> >
>> > > > > > >>> > >>> wrote:
>> > > > > > >>> > >>> >
>> > > > > > >>> > >>> > > Hi Maxim,
>> > > > > > >>> > >>> > >
>> > > > > > >>> > >>> > > Can you please provide more information how your
>> code
>> > > > > solves
>> > > > > > >>> the
>> > > > > > >>> > >>> problem ?
>> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code properly
>> > > detects
>> > > > > the
>> > > > > > >>> > >>> timezone
>> > > > > > >>> > >>> > > offset, but since there are many timezone ids for
>> a
>> > > given
>> > > > > > >>> offset it
>> > > > > > >>> > >>> is
>> > > > > > >>> > >>> not
>> > > > > > >>> > >>> > > easy to detect the correct DST from the offset.
>> > > > > > >>> > >>> > > In your code I don't see anything that should
>> provide
>> > > the
>> > > > > > >>> missing
>> > > > > > >>> > >>> timezone
>> > > > > > >>> > >>> > > id.
>> > > > > > >>> > >>> > > Or I am missing something ?
>> > > > > > >>> > >>> > >
>> > > > > > >>> > >>> > > Martin Grigorov
>> > > > > > >>> > >>> > > Wicket Training and Consulting
>> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
>> > > > > > >>> > >>> > >
>> > > > > > >>> > >>> > >
>> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim Solodovnik <
>> > > > > > >>> > >>> solomax666@gmail.com>
>> > > > > > >>> > >>> > > wrote:
>> > > > > > >>> > >>> > >
>> > > > > > >>> > >>> > > > Hello All,
>> > > > > > >>> > >>> > > >
>> > > > > > >>> > >>> > > > Some time ago we had user query [1] claiming
>> wicket
>> > > > based
>> > > > > > TZ
>> > > > > > >>> > >>> detection is
>> > > > > > >>> > >>> > > > not accurate.
>> > > > > > >>> > >>> > > > I believe the detection can be enhanced: DST
>> rules
>> > > can
>> > > > be
>> > > > > > >>> > detected
>> > > > > > >>> > >>> using
>> > > > > > >>> > >>> > > JS
>> > > > > > >>> > >>> > > > code and taken into account while TZ guessing
>> > > > > > >>> > >>> > > >
>> > > > > > >>> > >>> > > > here is the example of JS code determining
>> month TZ
>> > > > > switch
>> > > > > > is
>> > > > > > >>> > >>> happening:
>> > > > > > >>> > >>> > > > [2] line 50
>> > > > > > >>> > >>> > > >
>> > > > > > >>> > >>> > > > Maybe it worth to implement something like this
>> in
>> > > > > Wicket?
>> > > > > > >>> > >>> > > >
>> > > > > > >>> > >>> > > > [1]
>> http://markmail.org/message/v7vmfburg4zrtizk
>> > > > > > >>> > >>> > > > [2]
>> > > > > > >>> > >>> > > >
>> > > > > > >>> > >>> > > >
>> > > > > > >>> > >>> > >
>> > > > > > >>> > >>>
>> > > > > > >>> > >>>
>> > > > > > >>> >
>> > > > > > >>>
>> > > > > >
>> > > > >
>> > > >
>> > >
>> >
>> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
>> > > > > > >>> > >>> > > >
>> > > > > > >>> > >>> > > > --
>> > > > > > >>> > >>> > > > WBR
>> > > > > > >>> > >>> > > > Maxim aka solomax
>> > > > > > >>> > >>> > > >
>> > > > > > >>> > >>> > >
>> > > > > > >>> > >>> >
>> > > > > > >>> > >>> >
>> > > > > > >>> > >>> >
>> > > > > > >>> > >>> > --
>> > > > > > >>> > >>> > WBR
>> > > > > > >>> > >>> > Maxim aka solomax
>> > > > > > >>> > >>>
>> > > > > > >>> > >>
>> > > > > > >>> > >>
>> > > > > > >>> > >>
>> > > > > > >>> > >> --
>> > > > > > >>> > >> WBR
>> > > > > > >>> > >> Maxim aka solomax
>> > > > > > >>> > >>
>> > > > > > >>> > >
>> > > > > > >>> > >
>> > > > > > >>> > >
>> > > > > > >>> > > --
>> > > > > > >>> > > WBR
>> > > > > > >>> > > Maxim aka solomax
>> > > > > > >>> > >
>> > > > > > >>> >
>> > > > > > >>> >
>> > > > > > >>> >
>> > > > > > >>> > --
>> > > > > > >>> > WBR
>> > > > > > >>> > Maxim aka solomax
>> > > > > > >>> >
>> > > > > > >>>
>> > > > > > >>
>> > > > > > >>
>> > > > > > >>
>> > > > > > >> --
>> > > > > > >> WBR
>> > > > > > >> Maxim aka solomax
>> > > > > > >>
>> > > > > > >
>> > > > > > >
>> > > > > > >
>> > > > > > > --
>> > > > > > > WBR
>> > > > > > > Maxim aka solomax
>> > > > > > >
>> > > > > >
>> > > > > >
>> > > > > >
>> > > > > > --
>> > > > > > WBR
>> > > > > > Maxim aka solomax
>> > > > > >
>> > > > >
>> > > >
>> > > >
>> > > >
>> > > > --
>> > > > WBR
>> > > > Maxim aka solomax
>> > > >
>> > >
>> >
>> >
>> >
>> > --
>> > WBR
>> > Maxim aka solomax
>> >
>>
>
>
>
> --
> WBR
> Maxim aka solomax
>
--
WBR
Maxim aka solomax
Re: Timezone detection in Wicket
Posted by Ernesto Reinaldo Barreiro <re...@gmail.com>.
I was merely proposing "fix" client code with "variable info" coming from
server. It sounds to me more like your second approach ;-) To be completely
honest, I'm not fully aware of the details right now, so I do not know if
that makes any sense at all. Let me see if I can find the time to dig that
old project and see what library it was I was using and check if it has the
problems you describe.
On Fri, Dec 5, 2014 at 5:46 AM, Maxim Solodovnik <so...@gmail.com>
wrote:
> So you propose to:
> 1) create "sort of olson time zone DB" on server
> 2) pass it to client
> 3) determine TZ on client
> 4) pass the TZ to server
>
> instead of
> 1) get current TZ rules on clien
> 2) pass it to server
> 3) determine and use TZ on server
>
> I believe second approach is more straight forward
>
> On Fri, Dec 5, 2014 at 11:40 AM, Ernesto Reinaldo Barreiro <
> reiern70@gmail.com> wrote:
>
> > Pass info needed by Js library from server side? So that both sides are
> in
> > synchrony.
> > On 5 Dec 2014 05:59, "Maxim Solodovnik" <so...@gmail.com> wrote:
> >
> > > The problem I see with any JS library is: timezones are changes, OS and
> > > java knows the full history
> > > Any JS library need to maintain the full TZ list and all changes.
> > >
> > > In my code I get TZ rules (the exact date-time of each DST shift in a
> > year)
> > > and pass these data to java, then using Java's timezone definitions
> > (which
> > > are up to date and maintained by Java vendor) I'm trying to guess the
> > > current TZ.
> > >
> > > And it should work since we need to get TZ on Java side.
> > >
> > >
> > > On Fri, Dec 5, 2014 at 10:44 AM, Ernesto Reinaldo Barreiro <
> > > reiern70@gmail.com> wrote:
> > >
> > > > For an old project I was using some JS library... I will try to dig
> the
> > > > code and see what library it was: it seemed to work correctly at the
> > > time.
> > > >
> > > > On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <
> > solomax666@gmail.com>
> > > > wrote:
> > > >
> > > > > I would love to have library for such automatic detection
> > > > > But the list of time zones is limited, and it currently determines
> my
> > > > > current time zone wrong :(
> > > > > I'll check it's code and will try to enhance mine, I'll try to
> > enhance
> > > my
> > > > > code
> > > > >
> > > > > In case you prefer to use this library I would vote for that since
> > > > current
> > > > > wicket code is also not very good :(
> > > > > I believe this library can be used and enhanced.
> > > > >
> > > > > On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <
> > > solomax666@gmail.com>
> > > > > wrote:
> > > > >
> > > > > > Thanks will try to check :)
> > > > > >
> > > > > > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <
> > > mgrigorov@apache.org
> > > > >
> > > > > > wrote:
> > > > > >
> > > > > >> Hi Maxim,
> > > > > >>
> > > > > >> Check http://joshowens.me/dealing-with-timezones-in-javascript/
> .
> > It
> > > > may
> > > > > >> be
> > > > > >> in use for you.
> > > > > >>
> > > > > >> Martin Grigorov
> > > > > >> Wicket Training and Consulting
> > > > > >> https://twitter.com/mtgrigorov
> > > > > >>
> > > > > >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <
> > > > solomax666@gmail.com
> > > > > >
> > > > > >> wrote:
> > > > > >>
> > > > > >> > OK, will try to do it after ApacheConEU
> > > > > >> > Thanks for the review!
> > > > > >> >
> > > > > >> > On 11 November 2014 14:33, Martin Grigorov <
> > mgrigorov@apache.org>
> > > > > >> wrote:
> > > > > >> >
> > > > > >> > > I find the knowledge of the client timezone generally
> useful!
> > > > > >> > > If you improve the points in my last mail and integrate it
> > > > > >> > > in wicket-browser-info.js then it has better chance of being
> > > > merged
> > > > > >> ;-)
> > > > > >> > >
> > > > > >> > > Martin Grigorov
> > > > > >> > > Wicket Training and Consulting
> > > > > >> > > https://twitter.com/mtgrigorov
> > > > > >> > >
> > > > > >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> > > > > >> solomax666@gmail.com
> > > > > >> > >
> > > > > >> > > wrote:
> > > > > >> > >
> > > > > >> > > > you are right :(
> > > > > >> > > > I can improve it if it worth so
> > > > > >> > > >
> > > > > >> > > > The idea was to get client timezone rulez using JS: the
> > exact
> > > > DST
> > > > > >> > switch
> > > > > >> > > > start/end date/time
> > > > > >> > > > send this data to the server and then find Java timezone
> > with
> > > > best
> > > > > >> > match
> > > > > >> > > >
> > > > > >> > > >
> > > > > >> > > > On 11 November 2014 14:24, Martin Grigorov <
> > > > mgrigorov@apache.org>
> > > > > >> > wrote:
> > > > > >> > > >
> > > > > >> > > > > Hi Maxim,
> > > > > >> > > > >
> > > > > >> > > > >
> > > > > >> > > >
> > > > > >> > >
> > > > > >> >
> > > > > >>
> > > > >
> > > >
> > >
> >
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> > > > > >> > > > > is not very usable in its current state.
> > > > > >> > > > > My issues with it:
> > > > > >> > > > > - no documentation
> > > > > >> > > > > - no tests
> > > > > >> > > > > - uses short named variables and method names (thus hard
> > to
> > > > > >> follow)
> > > > > >> > > > > - ...
> > > > > >> > > > >
> > > > > >> > > > > I have forked it so I can use it as inspiration if I
> need
> > it
> > > > > >> later.
> > > > > >> > > > > Feel free to remove it.
> > > > > >> > > > >
> > > > > >> > > > > Thanks!
> > > > > >> > > > >
> > > > > >> > > > > Martin Grigorov
> > > > > >> > > > > Wicket Training and Consulting
> > > > > >> > > > > https://twitter.com/mtgrigorov
> > > > > >> > > > >
> > > > > >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> > > > > >> > > solomax666@gmail.com>
> > > > > >> > > > > wrote:
> > > > > >> > > > >
> > > > > >> > > > > > @Martin
> > > > > >> > > > > >
> > > > > >> > > > > > were you able to take a look at this code?
> > > > > >> > > > > > Is it look useful? Or I can remove it?
> > > > > >> > > > > >
> > > > > >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> > > > > >> solomax666@gmail.com
> > > > > >> > >
> > > > > >> > > > > wrote:
> > > > > >> > > > > >
> > > > > >> > > > > > > Finally was able to create prototype:
> > > > > >> > > > > > https://github.com/solomax/tzdetect
> > > > > >> > > > > > > Maybe you can find it (or parts of it) usable
> > > > > >> > > > > > >
> > > > > >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> > > > > >> > solomax666@gmail.com>
> > > > > >> > > > > > wrote:
> > > > > >> > > > > > >
> > > > > >> > > > > > >> I believe if TZ rulez will be detected on client
> > side,
> > > > and
> > > > > TZ
> > > > > >> > > itself
> > > > > >> > > > > on
> > > > > >> > > > > > >> server side it might find user TZ good enough. (due
> > to
> > > TZ
> > > > > >> list
> > > > > >> > > with
> > > > > >> > > > > > rulez
> > > > > >> > > > > > >> will be maintained by java vendor, not JS library
> > > itself)
> > > > > >> > > > > > >> will try to modify the code and provide quickstart
> > > > > >> > > > > > >>
> > > > > >> > > > > > >>
> > > > > >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> > > > > >> > mgrigorov@apache.org>
> > > > > >> > > > > > wrote:
> > > > > >> > > > > > >>
> > > > > >> > > > > > >>> see
> > > https://github.com/moment/moment-timezone/issues/55
> > > > > >> > > > > > >>> if Moment.js cannot do it then I don't think we
> will
> > > do
> > > > it
> > > > > >> > > > > > >>>
> > > > > >> > > > > > >>> Martin Grigorov
> > > > > >> > > > > > >>> Wicket Training and Consulting
> > > > > >> > > > > > >>> https://twitter.com/mtgrigorov
> > > > > >> > > > > > >>>
> > > > > >> > > > > > >>>
> > > > > >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik
> <
> > > > > >> > > > > > solomax666@gmail.com>
> > > > > >> > > > > > >>> wrote:
> > > > > >> > > > > > >>>
> > > > > >> > > > > > >>> > there seems to be timezones with more than 1 dst
> > > start
> > > > > per
> > > > > >> > year
> > > > > >> > > > :(
> > > > > >> > > > > > >>> > code should be updated to reflect this :(
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> > > > > >> > > > solomax666@gmail.com>
> > > > > >> > > > > > >>> wrote:
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>> > > was tested against multiple Time zones listed
> > > here:
> > > > > >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html
> and
> > > own
> > > > TZ
> > > > > >> > > > > > >>> (Asia/Novosibirsk)
> > > > > >> > > > > > >>> > >
> > > > > >> > > > > > >>> > >
> > > > > >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> > > > > >> > > > > solomax666@gmail.com>
> > > > > >> > > > > > >>> > wrote:
> > > > > >> > > > > > >>> > >
> > > > > >> > > > > > >>> > >> here is the JS code
> > > > > >> > > > > > >>> >
> > > https://gist.github.com/solomax/e86cc77694d67120b8f5
> > > > > >> > > > > > >>> > >> to get DST start date/time (if any)
> > > > > >> > > > > > >>> > >> only minute offset was not tested due to
> > > > impossibili
> > > > > to
> > > > > >> > set
> > > > > >> > > TZ
> > > > > >> > > > > > >>> "Chatham
> > > > > >> > > > > > >>> > >> Island" on my Ubuntu)
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >> similar code can be added to get DST end
> > > date/time
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >> the code also might need to be "polished" a
> > > little
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> > > > > >> > > > > mgrigorov@apache.org>
> > > > > >> > > > > > >>> > wrote:
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik"
> <
> > > > > >> > > > > > solomax666@gmail.com>
> > > > > >> > > > > > >>> > >>> wrote:
> > > > > >> > > > > > >>> > >>> >
> > > > > >> > > > > > >>> > >>> > Actually my code can be extended to get
> > > > > >> > > > > > >>> > >>> > 1) if TZ has DST or not
> > > > > >> > > > > > >>> > >>> > 2) what month DST happening
> > > > > >> > > > > > >>> > >>> > 3) the day of month DST happening
> > > > > >> > > > > > >>> > >>> > 4) hour of day DST happening
> > > > > >> > > > > > >>> > >>> >
> > > > > >> > > > > > >>> > >>> > I believe after all this info is available
> > the
> > > > > list
> > > > > >> of
> > > > > >> > > time
> > > > > >> > > > > > zones
> > > > > >> > > > > > >>> > with
> > > > > >> > > > > > >>> > >>> > certain offset can be reduced to better
> > match
> > > > > >> current
> > > > > >> > > user
> > > > > >> > > > > TZ.
> > > > > >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> > > > > >> > > > > > >>> > >>>
> > > > > >> > > > > > >>> > >>> This will increase the chance to include it
> !
> > > ;-)
> > > > > >> > > > > > >>> > >>>
> > > > > >> > > > > > >>> > >>> >
> > > > > >> > > > > > >>> > >>> >
> > > > > >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin
> Grigorov <
> > > > > >> > > > > > mgrigorov@apache.org
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>> > >>> wrote:
> > > > > >> > > > > > >>> > >>> >
> > > > > >> > > > > > >>> > >>> > > Hi Maxim,
> > > > > >> > > > > > >>> > >>> > >
> > > > > >> > > > > > >>> > >>> > > Can you please provide more information
> > how
> > > > your
> > > > > >> code
> > > > > >> > > > > solves
> > > > > >> > > > > > >>> the
> > > > > >> > > > > > >>> > >>> problem ?
> > > > > >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> > > > > properly
> > > > > >> > > detects
> > > > > >> > > > > the
> > > > > >> > > > > > >>> > >>> timezone
> > > > > >> > > > > > >>> > >>> > > offset, but since there are many
> timezone
> > > ids
> > > > > for
> > > > > >> a
> > > > > >> > > given
> > > > > >> > > > > > >>> offset it
> > > > > >> > > > > > >>> > >>> is
> > > > > >> > > > > > >>> > >>> not
> > > > > >> > > > > > >>> > >>> > > easy to detect the correct DST from the
> > > > offset.
> > > > > >> > > > > > >>> > >>> > > In your code I don't see anything that
> > > should
> > > > > >> provide
> > > > > >> > > the
> > > > > >> > > > > > >>> missing
> > > > > >> > > > > > >>> > >>> timezone
> > > > > >> > > > > > >>> > >>> > > id.
> > > > > >> > > > > > >>> > >>> > > Or I am missing something ?
> > > > > >> > > > > > >>> > >>> > >
> > > > > >> > > > > > >>> > >>> > > Martin Grigorov
> > > > > >> > > > > > >>> > >>> > > Wicket Training and Consulting
> > > > > >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> > > > > >> > > > > > >>> > >>> > >
> > > > > >> > > > > > >>> > >>> > >
> > > > > >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> > > > > Solodovnik <
> > > > > >> > > > > > >>> > >>> solomax666@gmail.com>
> > > > > >> > > > > > >>> > >>> > > wrote:
> > > > > >> > > > > > >>> > >>> > >
> > > > > >> > > > > > >>> > >>> > > > Hello All,
> > > > > >> > > > > > >>> > >>> > > >
> > > > > >> > > > > > >>> > >>> > > > Some time ago we had user query [1]
> > > claiming
> > > > > >> wicket
> > > > > >> > > > based
> > > > > >> > > > > > TZ
> > > > > >> > > > > > >>> > >>> detection is
> > > > > >> > > > > > >>> > >>> > > > not accurate.
> > > > > >> > > > > > >>> > >>> > > > I believe the detection can be
> enhanced:
> > > DST
> > > > > >> rules
> > > > > >> > > can
> > > > > >> > > > be
> > > > > >> > > > > > >>> > detected
> > > > > >> > > > > > >>> > >>> using
> > > > > >> > > > > > >>> > >>> > > JS
> > > > > >> > > > > > >>> > >>> > > > code and taken into account while TZ
> > > > guessing
> > > > > >> > > > > > >>> > >>> > > >
> > > > > >> > > > > > >>> > >>> > > > here is the example of JS code
> > determining
> > > > > >> month TZ
> > > > > >> > > > > switch
> > > > > >> > > > > > is
> > > > > >> > > > > > >>> > >>> happening:
> > > > > >> > > > > > >>> > >>> > > > [2] line 50
> > > > > >> > > > > > >>> > >>> > > >
> > > > > >> > > > > > >>> > >>> > > > Maybe it worth to implement something
> > like
> > > > > this
> > > > > >> in
> > > > > >> > > > > Wicket?
> > > > > >> > > > > > >>> > >>> > > >
> > > > > >> > > > > > >>> > >>> > > > [1]
> > > > > >> http://markmail.org/message/v7vmfburg4zrtizk
> > > > > >> > > > > > >>> > >>> > > > [2]
> > > > > >> > > > > > >>> > >>> > > >
> > > > > >> > > > > > >>> > >>> > > >
> > > > > >> > > > > > >>> > >>> > >
> > > > > >> > > > > > >>> > >>>
> > > > > >> > > > > > >>> > >>>
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>>
> > > > > >> > > > > >
> > > > > >> > > > >
> > > > > >> > > >
> > > > > >> > >
> > > > > >> >
> > > > > >>
> > > > >
> > > >
> > >
> >
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> > > > > >> > > > > > >>> > >>> > > >
> > > > > >> > > > > > >>> > >>> > > > --
> > > > > >> > > > > > >>> > >>> > > > WBR
> > > > > >> > > > > > >>> > >>> > > > Maxim aka solomax
> > > > > >> > > > > > >>> > >>> > > >
> > > > > >> > > > > > >>> > >>> > >
> > > > > >> > > > > > >>> > >>> >
> > > > > >> > > > > > >>> > >>> >
> > > > > >> > > > > > >>> > >>> >
> > > > > >> > > > > > >>> > >>> > --
> > > > > >> > > > > > >>> > >>> > WBR
> > > > > >> > > > > > >>> > >>> > Maxim aka solomax
> > > > > >> > > > > > >>> > >>>
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >> --
> > > > > >> > > > > > >>> > >> WBR
> > > > > >> > > > > > >>> > >> Maxim aka solomax
> > > > > >> > > > > > >>> > >>
> > > > > >> > > > > > >>> > >
> > > > > >> > > > > > >>> > >
> > > > > >> > > > > > >>> > >
> > > > > >> > > > > > >>> > > --
> > > > > >> > > > > > >>> > > WBR
> > > > > >> > > > > > >>> > > Maxim aka solomax
> > > > > >> > > > > > >>> > >
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>> > --
> > > > > >> > > > > > >>> > WBR
> > > > > >> > > > > > >>> > Maxim aka solomax
> > > > > >> > > > > > >>> >
> > > > > >> > > > > > >>>
> > > > > >> > > > > > >>
> > > > > >> > > > > > >>
> > > > > >> > > > > > >>
> > > > > >> > > > > > >> --
> > > > > >> > > > > > >> WBR
> > > > > >> > > > > > >> Maxim aka solomax
> > > > > >> > > > > > >>
> > > > > >> > > > > > >
> > > > > >> > > > > > >
> > > > > >> > > > > > >
> > > > > >> > > > > > > --
> > > > > >> > > > > > > WBR
> > > > > >> > > > > > > Maxim aka solomax
> > > > > >> > > > > > >
> > > > > >> > > > > >
> > > > > >> > > > > >
> > > > > >> > > > > >
> > > > > >> > > > > > --
> > > > > >> > > > > > WBR
> > > > > >> > > > > > Maxim aka solomax
> > > > > >> > > > > >
> > > > > >> > > > >
> > > > > >> > > >
> > > > > >> > > >
> > > > > >> > > >
> > > > > >> > > > --
> > > > > >> > > > WBR
> > > > > >> > > > Maxim aka solomax
> > > > > >> > > >
> > > > > >> > >
> > > > > >> >
> > > > > >> >
> > > > > >> >
> > > > > >> > --
> > > > > >> > WBR
> > > > > >> > Maxim aka solomax
> > > > > >> >
> > > > > >>
> > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > > WBR
> > > > > > Maxim aka solomax
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > WBR
> > > > > Maxim aka solomax
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Regards - Ernesto Reinaldo Barreiro
> > > >
> > >
> > >
> > >
> > > --
> > > WBR
> > > Maxim aka solomax
> > >
> >
>
>
>
> --
> WBR
> Maxim aka solomax
>
--
Regards - Ernesto Reinaldo Barreiro
Re: Timezone detection in Wicket
Posted by Maxim Solodovnik <so...@gmail.com>.
So you propose to:
1) create "sort of olson time zone DB" on server
2) pass it to client
3) determine TZ on client
4) pass the TZ to server
instead of
1) get current TZ rules on clien
2) pass it to server
3) determine and use TZ on server
I believe second approach is more straight forward
On Fri, Dec 5, 2014 at 11:40 AM, Ernesto Reinaldo Barreiro <
reiern70@gmail.com> wrote:
> Pass info needed by Js library from server side? So that both sides are in
> synchrony.
> On 5 Dec 2014 05:59, "Maxim Solodovnik" <so...@gmail.com> wrote:
>
> > The problem I see with any JS library is: timezones are changes, OS and
> > java knows the full history
> > Any JS library need to maintain the full TZ list and all changes.
> >
> > In my code I get TZ rules (the exact date-time of each DST shift in a
> year)
> > and pass these data to java, then using Java's timezone definitions
> (which
> > are up to date and maintained by Java vendor) I'm trying to guess the
> > current TZ.
> >
> > And it should work since we need to get TZ on Java side.
> >
> >
> > On Fri, Dec 5, 2014 at 10:44 AM, Ernesto Reinaldo Barreiro <
> > reiern70@gmail.com> wrote:
> >
> > > For an old project I was using some JS library... I will try to dig the
> > > code and see what library it was: it seemed to work correctly at the
> > time.
> > >
> > > On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <
> solomax666@gmail.com>
> > > wrote:
> > >
> > > > I would love to have library for such automatic detection
> > > > But the list of time zones is limited, and it currently determines my
> > > > current time zone wrong :(
> > > > I'll check it's code and will try to enhance mine, I'll try to
> enhance
> > my
> > > > code
> > > >
> > > > In case you prefer to use this library I would vote for that since
> > > current
> > > > wicket code is also not very good :(
> > > > I believe this library can be used and enhanced.
> > > >
> > > > On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <
> > solomax666@gmail.com>
> > > > wrote:
> > > >
> > > > > Thanks will try to check :)
> > > > >
> > > > > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <
> > mgrigorov@apache.org
> > > >
> > > > > wrote:
> > > > >
> > > > >> Hi Maxim,
> > > > >>
> > > > >> Check http://joshowens.me/dealing-with-timezones-in-javascript/.
> It
> > > may
> > > > >> be
> > > > >> in use for you.
> > > > >>
> > > > >> Martin Grigorov
> > > > >> Wicket Training and Consulting
> > > > >> https://twitter.com/mtgrigorov
> > > > >>
> > > > >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <
> > > solomax666@gmail.com
> > > > >
> > > > >> wrote:
> > > > >>
> > > > >> > OK, will try to do it after ApacheConEU
> > > > >> > Thanks for the review!
> > > > >> >
> > > > >> > On 11 November 2014 14:33, Martin Grigorov <
> mgrigorov@apache.org>
> > > > >> wrote:
> > > > >> >
> > > > >> > > I find the knowledge of the client timezone generally useful!
> > > > >> > > If you improve the points in my last mail and integrate it
> > > > >> > > in wicket-browser-info.js then it has better chance of being
> > > merged
> > > > >> ;-)
> > > > >> > >
> > > > >> > > Martin Grigorov
> > > > >> > > Wicket Training and Consulting
> > > > >> > > https://twitter.com/mtgrigorov
> > > > >> > >
> > > > >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> > > > >> solomax666@gmail.com
> > > > >> > >
> > > > >> > > wrote:
> > > > >> > >
> > > > >> > > > you are right :(
> > > > >> > > > I can improve it if it worth so
> > > > >> > > >
> > > > >> > > > The idea was to get client timezone rulez using JS: the
> exact
> > > DST
> > > > >> > switch
> > > > >> > > > start/end date/time
> > > > >> > > > send this data to the server and then find Java timezone
> with
> > > best
> > > > >> > match
> > > > >> > > >
> > > > >> > > >
> > > > >> > > > On 11 November 2014 14:24, Martin Grigorov <
> > > mgrigorov@apache.org>
> > > > >> > wrote:
> > > > >> > > >
> > > > >> > > > > Hi Maxim,
> > > > >> > > > >
> > > > >> > > > >
> > > > >> > > >
> > > > >> > >
> > > > >> >
> > > > >>
> > > >
> > >
> >
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> > > > >> > > > > is not very usable in its current state.
> > > > >> > > > > My issues with it:
> > > > >> > > > > - no documentation
> > > > >> > > > > - no tests
> > > > >> > > > > - uses short named variables and method names (thus hard
> to
> > > > >> follow)
> > > > >> > > > > - ...
> > > > >> > > > >
> > > > >> > > > > I have forked it so I can use it as inspiration if I need
> it
> > > > >> later.
> > > > >> > > > > Feel free to remove it.
> > > > >> > > > >
> > > > >> > > > > Thanks!
> > > > >> > > > >
> > > > >> > > > > Martin Grigorov
> > > > >> > > > > Wicket Training and Consulting
> > > > >> > > > > https://twitter.com/mtgrigorov
> > > > >> > > > >
> > > > >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> > > > >> > > solomax666@gmail.com>
> > > > >> > > > > wrote:
> > > > >> > > > >
> > > > >> > > > > > @Martin
> > > > >> > > > > >
> > > > >> > > > > > were you able to take a look at this code?
> > > > >> > > > > > Is it look useful? Or I can remove it?
> > > > >> > > > > >
> > > > >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> > > > >> solomax666@gmail.com
> > > > >> > >
> > > > >> > > > > wrote:
> > > > >> > > > > >
> > > > >> > > > > > > Finally was able to create prototype:
> > > > >> > > > > > https://github.com/solomax/tzdetect
> > > > >> > > > > > > Maybe you can find it (or parts of it) usable
> > > > >> > > > > > >
> > > > >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> > > > >> > solomax666@gmail.com>
> > > > >> > > > > > wrote:
> > > > >> > > > > > >
> > > > >> > > > > > >> I believe if TZ rulez will be detected on client
> side,
> > > and
> > > > TZ
> > > > >> > > itself
> > > > >> > > > > on
> > > > >> > > > > > >> server side it might find user TZ good enough. (due
> to
> > TZ
> > > > >> list
> > > > >> > > with
> > > > >> > > > > > rulez
> > > > >> > > > > > >> will be maintained by java vendor, not JS library
> > itself)
> > > > >> > > > > > >> will try to modify the code and provide quickstart
> > > > >> > > > > > >>
> > > > >> > > > > > >>
> > > > >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> > > > >> > mgrigorov@apache.org>
> > > > >> > > > > > wrote:
> > > > >> > > > > > >>
> > > > >> > > > > > >>> see
> > https://github.com/moment/moment-timezone/issues/55
> > > > >> > > > > > >>> if Moment.js cannot do it then I don't think we will
> > do
> > > it
> > > > >> > > > > > >>>
> > > > >> > > > > > >>> Martin Grigorov
> > > > >> > > > > > >>> Wicket Training and Consulting
> > > > >> > > > > > >>> https://twitter.com/mtgrigorov
> > > > >> > > > > > >>>
> > > > >> > > > > > >>>
> > > > >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
> > > > >> > > > > > solomax666@gmail.com>
> > > > >> > > > > > >>> wrote:
> > > > >> > > > > > >>>
> > > > >> > > > > > >>> > there seems to be timezones with more than 1 dst
> > start
> > > > per
> > > > >> > year
> > > > >> > > > :(
> > > > >> > > > > > >>> > code should be updated to reflect this :(
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> > > > >> > > > solomax666@gmail.com>
> > > > >> > > > > > >>> wrote:
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> > > was tested against multiple Time zones listed
> > here:
> > > > >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and
> > own
> > > TZ
> > > > >> > > > > > >>> (Asia/Novosibirsk)
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> > > > >> > > > > solomax666@gmail.com>
> > > > >> > > > > > >>> > wrote:
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > >> here is the JS code
> > > > >> > > > > > >>> >
> > https://gist.github.com/solomax/e86cc77694d67120b8f5
> > > > >> > > > > > >>> > >> to get DST start date/time (if any)
> > > > >> > > > > > >>> > >> only minute offset was not tested due to
> > > impossibili
> > > > to
> > > > >> > set
> > > > >> > > TZ
> > > > >> > > > > > >>> "Chatham
> > > > >> > > > > > >>> > >> Island" on my Ubuntu)
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >> similar code can be added to get DST end
> > date/time
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >> the code also might need to be "polished" a
> > little
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> > > > >> > > > > mgrigorov@apache.org>
> > > > >> > > > > > >>> > wrote:
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
> > > > >> > > > > > solomax666@gmail.com>
> > > > >> > > > > > >>> > >>> wrote:
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > Actually my code can be extended to get
> > > > >> > > > > > >>> > >>> > 1) if TZ has DST or not
> > > > >> > > > > > >>> > >>> > 2) what month DST happening
> > > > >> > > > > > >>> > >>> > 3) the day of month DST happening
> > > > >> > > > > > >>> > >>> > 4) hour of day DST happening
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > I believe after all this info is available
> the
> > > > list
> > > > >> of
> > > > >> > > time
> > > > >> > > > > > zones
> > > > >> > > > > > >>> > with
> > > > >> > > > > > >>> > >>> > certain offset can be reduced to better
> match
> > > > >> current
> > > > >> > > user
> > > > >> > > > > TZ.
> > > > >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> > >>> This will increase the chance to include it !
> > ;-)
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
> > > > >> > > > > > mgrigorov@apache.org
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> > >>> wrote:
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > > Hi Maxim,
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > > Can you please provide more information
> how
> > > your
> > > > >> code
> > > > >> > > > > solves
> > > > >> > > > > > >>> the
> > > > >> > > > > > >>> > >>> problem ?
> > > > >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> > > > properly
> > > > >> > > detects
> > > > >> > > > > the
> > > > >> > > > > > >>> > >>> timezone
> > > > >> > > > > > >>> > >>> > > offset, but since there are many timezone
> > ids
> > > > for
> > > > >> a
> > > > >> > > given
> > > > >> > > > > > >>> offset it
> > > > >> > > > > > >>> > >>> is
> > > > >> > > > > > >>> > >>> not
> > > > >> > > > > > >>> > >>> > > easy to detect the correct DST from the
> > > offset.
> > > > >> > > > > > >>> > >>> > > In your code I don't see anything that
> > should
> > > > >> provide
> > > > >> > > the
> > > > >> > > > > > >>> missing
> > > > >> > > > > > >>> > >>> timezone
> > > > >> > > > > > >>> > >>> > > id.
> > > > >> > > > > > >>> > >>> > > Or I am missing something ?
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > > Martin Grigorov
> > > > >> > > > > > >>> > >>> > > Wicket Training and Consulting
> > > > >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> > > > Solodovnik <
> > > > >> > > > > > >>> > >>> solomax666@gmail.com>
> > > > >> > > > > > >>> > >>> > > wrote:
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > > > Hello All,
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > Some time ago we had user query [1]
> > claiming
> > > > >> wicket
> > > > >> > > > based
> > > > >> > > > > > TZ
> > > > >> > > > > > >>> > >>> detection is
> > > > >> > > > > > >>> > >>> > > > not accurate.
> > > > >> > > > > > >>> > >>> > > > I believe the detection can be enhanced:
> > DST
> > > > >> rules
> > > > >> > > can
> > > > >> > > > be
> > > > >> > > > > > >>> > detected
> > > > >> > > > > > >>> > >>> using
> > > > >> > > > > > >>> > >>> > > JS
> > > > >> > > > > > >>> > >>> > > > code and taken into account while TZ
> > > guessing
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > here is the example of JS code
> determining
> > > > >> month TZ
> > > > >> > > > > switch
> > > > >> > > > > > is
> > > > >> > > > > > >>> > >>> happening:
> > > > >> > > > > > >>> > >>> > > > [2] line 50
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > Maybe it worth to implement something
> like
> > > > this
> > > > >> in
> > > > >> > > > > Wicket?
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > [1]
> > > > >> http://markmail.org/message/v7vmfburg4zrtizk
> > > > >> > > > > > >>> > >>> > > > [2]
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>>
> > > > >> > > > > >
> > > > >> > > > >
> > > > >> > > >
> > > > >> > >
> > > > >> >
> > > > >>
> > > >
> > >
> >
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > --
> > > > >> > > > > > >>> > >>> > > > WBR
> > > > >> > > > > > >>> > >>> > > > Maxim aka solomax
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > --
> > > > >> > > > > > >>> > >>> > WBR
> > > > >> > > > > > >>> > >>> > Maxim aka solomax
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >> --
> > > > >> > > > > > >>> > >> WBR
> > > > >> > > > > > >>> > >> Maxim aka solomax
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > > --
> > > > >> > > > > > >>> > > WBR
> > > > >> > > > > > >>> > > Maxim aka solomax
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> > --
> > > > >> > > > > > >>> > WBR
> > > > >> > > > > > >>> > Maxim aka solomax
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>>
> > > > >> > > > > > >>
> > > > >> > > > > > >>
> > > > >> > > > > > >>
> > > > >> > > > > > >> --
> > > > >> > > > > > >> WBR
> > > > >> > > > > > >> Maxim aka solomax
> > > > >> > > > > > >>
> > > > >> > > > > > >
> > > > >> > > > > > >
> > > > >> > > > > > >
> > > > >> > > > > > > --
> > > > >> > > > > > > WBR
> > > > >> > > > > > > Maxim aka solomax
> > > > >> > > > > > >
> > > > >> > > > > >
> > > > >> > > > > >
> > > > >> > > > > >
> > > > >> > > > > > --
> > > > >> > > > > > WBR
> > > > >> > > > > > Maxim aka solomax
> > > > >> > > > > >
> > > > >> > > > >
> > > > >> > > >
> > > > >> > > >
> > > > >> > > >
> > > > >> > > > --
> > > > >> > > > WBR
> > > > >> > > > Maxim aka solomax
> > > > >> > > >
> > > > >> > >
> > > > >> >
> > > > >> >
> > > > >> >
> > > > >> > --
> > > > >> > WBR
> > > > >> > Maxim aka solomax
> > > > >> >
> > > > >>
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > WBR
> > > > > Maxim aka solomax
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > WBR
> > > > Maxim aka solomax
> > > >
> > >
> > >
> > >
> > > --
> > > Regards - Ernesto Reinaldo Barreiro
> > >
> >
> >
> >
> > --
> > WBR
> > Maxim aka solomax
> >
>
--
WBR
Maxim aka solomax
Re: Timezone detection in Wicket
Posted by Ernesto Reinaldo Barreiro <re...@gmail.com>.
Pass info needed by Js library from server side? So that both sides are in
synchrony.
On 5 Dec 2014 05:59, "Maxim Solodovnik" <so...@gmail.com> wrote:
> The problem I see with any JS library is: timezones are changes, OS and
> java knows the full history
> Any JS library need to maintain the full TZ list and all changes.
>
> In my code I get TZ rules (the exact date-time of each DST shift in a year)
> and pass these data to java, then using Java's timezone definitions (which
> are up to date and maintained by Java vendor) I'm trying to guess the
> current TZ.
>
> And it should work since we need to get TZ on Java side.
>
>
> On Fri, Dec 5, 2014 at 10:44 AM, Ernesto Reinaldo Barreiro <
> reiern70@gmail.com> wrote:
>
> > For an old project I was using some JS library... I will try to dig the
> > code and see what library it was: it seemed to work correctly at the
> time.
> >
> > On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <so...@gmail.com>
> > wrote:
> >
> > > I would love to have library for such automatic detection
> > > But the list of time zones is limited, and it currently determines my
> > > current time zone wrong :(
> > > I'll check it's code and will try to enhance mine, I'll try to enhance
> my
> > > code
> > >
> > > In case you prefer to use this library I would vote for that since
> > current
> > > wicket code is also not very good :(
> > > I believe this library can be used and enhanced.
> > >
> > > On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <
> solomax666@gmail.com>
> > > wrote:
> > >
> > > > Thanks will try to check :)
> > > >
> > > > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <
> mgrigorov@apache.org
> > >
> > > > wrote:
> > > >
> > > >> Hi Maxim,
> > > >>
> > > >> Check http://joshowens.me/dealing-with-timezones-in-javascript/. It
> > may
> > > >> be
> > > >> in use for you.
> > > >>
> > > >> Martin Grigorov
> > > >> Wicket Training and Consulting
> > > >> https://twitter.com/mtgrigorov
> > > >>
> > > >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <
> > solomax666@gmail.com
> > > >
> > > >> wrote:
> > > >>
> > > >> > OK, will try to do it after ApacheConEU
> > > >> > Thanks for the review!
> > > >> >
> > > >> > On 11 November 2014 14:33, Martin Grigorov <mg...@apache.org>
> > > >> wrote:
> > > >> >
> > > >> > > I find the knowledge of the client timezone generally useful!
> > > >> > > If you improve the points in my last mail and integrate it
> > > >> > > in wicket-browser-info.js then it has better chance of being
> > merged
> > > >> ;-)
> > > >> > >
> > > >> > > Martin Grigorov
> > > >> > > Wicket Training and Consulting
> > > >> > > https://twitter.com/mtgrigorov
> > > >> > >
> > > >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> > > >> solomax666@gmail.com
> > > >> > >
> > > >> > > wrote:
> > > >> > >
> > > >> > > > you are right :(
> > > >> > > > I can improve it if it worth so
> > > >> > > >
> > > >> > > > The idea was to get client timezone rulez using JS: the exact
> > DST
> > > >> > switch
> > > >> > > > start/end date/time
> > > >> > > > send this data to the server and then find Java timezone with
> > best
> > > >> > match
> > > >> > > >
> > > >> > > >
> > > >> > > > On 11 November 2014 14:24, Martin Grigorov <
> > mgrigorov@apache.org>
> > > >> > wrote:
> > > >> > > >
> > > >> > > > > Hi Maxim,
> > > >> > > > >
> > > >> > > > >
> > > >> > > >
> > > >> > >
> > > >> >
> > > >>
> > >
> >
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> > > >> > > > > is not very usable in its current state.
> > > >> > > > > My issues with it:
> > > >> > > > > - no documentation
> > > >> > > > > - no tests
> > > >> > > > > - uses short named variables and method names (thus hard to
> > > >> follow)
> > > >> > > > > - ...
> > > >> > > > >
> > > >> > > > > I have forked it so I can use it as inspiration if I need it
> > > >> later.
> > > >> > > > > Feel free to remove it.
> > > >> > > > >
> > > >> > > > > Thanks!
> > > >> > > > >
> > > >> > > > > Martin Grigorov
> > > >> > > > > Wicket Training and Consulting
> > > >> > > > > https://twitter.com/mtgrigorov
> > > >> > > > >
> > > >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> > > >> > > solomax666@gmail.com>
> > > >> > > > > wrote:
> > > >> > > > >
> > > >> > > > > > @Martin
> > > >> > > > > >
> > > >> > > > > > were you able to take a look at this code?
> > > >> > > > > > Is it look useful? Or I can remove it?
> > > >> > > > > >
> > > >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> > > >> solomax666@gmail.com
> > > >> > >
> > > >> > > > > wrote:
> > > >> > > > > >
> > > >> > > > > > > Finally was able to create prototype:
> > > >> > > > > > https://github.com/solomax/tzdetect
> > > >> > > > > > > Maybe you can find it (or parts of it) usable
> > > >> > > > > > >
> > > >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> > > >> > solomax666@gmail.com>
> > > >> > > > > > wrote:
> > > >> > > > > > >
> > > >> > > > > > >> I believe if TZ rulez will be detected on client side,
> > and
> > > TZ
> > > >> > > itself
> > > >> > > > > on
> > > >> > > > > > >> server side it might find user TZ good enough. (due to
> TZ
> > > >> list
> > > >> > > with
> > > >> > > > > > rulez
> > > >> > > > > > >> will be maintained by java vendor, not JS library
> itself)
> > > >> > > > > > >> will try to modify the code and provide quickstart
> > > >> > > > > > >>
> > > >> > > > > > >>
> > > >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> > > >> > mgrigorov@apache.org>
> > > >> > > > > > wrote:
> > > >> > > > > > >>
> > > >> > > > > > >>> see
> https://github.com/moment/moment-timezone/issues/55
> > > >> > > > > > >>> if Moment.js cannot do it then I don't think we will
> do
> > it
> > > >> > > > > > >>>
> > > >> > > > > > >>> Martin Grigorov
> > > >> > > > > > >>> Wicket Training and Consulting
> > > >> > > > > > >>> https://twitter.com/mtgrigorov
> > > >> > > > > > >>>
> > > >> > > > > > >>>
> > > >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
> > > >> > > > > > solomax666@gmail.com>
> > > >> > > > > > >>> wrote:
> > > >> > > > > > >>>
> > > >> > > > > > >>> > there seems to be timezones with more than 1 dst
> start
> > > per
> > > >> > year
> > > >> > > > :(
> > > >> > > > > > >>> > code should be updated to reflect this :(
> > > >> > > > > > >>> >
> > > >> > > > > > >>> >
> > > >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> > > >> > > > solomax666@gmail.com>
> > > >> > > > > > >>> wrote:
> > > >> > > > > > >>> >
> > > >> > > > > > >>> > > was tested against multiple Time zones listed
> here:
> > > >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and
> own
> > TZ
> > > >> > > > > > >>> (Asia/Novosibirsk)
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> > > >> > > > > solomax666@gmail.com>
> > > >> > > > > > >>> > wrote:
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > >> here is the JS code
> > > >> > > > > > >>> >
> https://gist.github.com/solomax/e86cc77694d67120b8f5
> > > >> > > > > > >>> > >> to get DST start date/time (if any)
> > > >> > > > > > >>> > >> only minute offset was not tested due to
> > impossibili
> > > to
> > > >> > set
> > > >> > > TZ
> > > >> > > > > > >>> "Chatham
> > > >> > > > > > >>> > >> Island" on my Ubuntu)
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >> similar code can be added to get DST end
> date/time
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >> the code also might need to be "polished" a
> little
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> > > >> > > > > mgrigorov@apache.org>
> > > >> > > > > > >>> > wrote:
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
> > > >> > > > > > solomax666@gmail.com>
> > > >> > > > > > >>> > >>> wrote:
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > Actually my code can be extended to get
> > > >> > > > > > >>> > >>> > 1) if TZ has DST or not
> > > >> > > > > > >>> > >>> > 2) what month DST happening
> > > >> > > > > > >>> > >>> > 3) the day of month DST happening
> > > >> > > > > > >>> > >>> > 4) hour of day DST happening
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > I believe after all this info is available the
> > > list
> > > >> of
> > > >> > > time
> > > >> > > > > > zones
> > > >> > > > > > >>> > with
> > > >> > > > > > >>> > >>> > certain offset can be reduced to better match
> > > >> current
> > > >> > > user
> > > >> > > > > TZ.
> > > >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> > >>> This will increase the chance to include it !
> ;-)
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
> > > >> > > > > > mgrigorov@apache.org
> > > >> > > > > > >>> >
> > > >> > > > > > >>> > >>> wrote:
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > > Hi Maxim,
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > > Can you please provide more information how
> > your
> > > >> code
> > > >> > > > > solves
> > > >> > > > > > >>> the
> > > >> > > > > > >>> > >>> problem ?
> > > >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> > > properly
> > > >> > > detects
> > > >> > > > > the
> > > >> > > > > > >>> > >>> timezone
> > > >> > > > > > >>> > >>> > > offset, but since there are many timezone
> ids
> > > for
> > > >> a
> > > >> > > given
> > > >> > > > > > >>> offset it
> > > >> > > > > > >>> > >>> is
> > > >> > > > > > >>> > >>> not
> > > >> > > > > > >>> > >>> > > easy to detect the correct DST from the
> > offset.
> > > >> > > > > > >>> > >>> > > In your code I don't see anything that
> should
> > > >> provide
> > > >> > > the
> > > >> > > > > > >>> missing
> > > >> > > > > > >>> > >>> timezone
> > > >> > > > > > >>> > >>> > > id.
> > > >> > > > > > >>> > >>> > > Or I am missing something ?
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > > Martin Grigorov
> > > >> > > > > > >>> > >>> > > Wicket Training and Consulting
> > > >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> > > Solodovnik <
> > > >> > > > > > >>> > >>> solomax666@gmail.com>
> > > >> > > > > > >>> > >>> > > wrote:
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > > > Hello All,
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > Some time ago we had user query [1]
> claiming
> > > >> wicket
> > > >> > > > based
> > > >> > > > > > TZ
> > > >> > > > > > >>> > >>> detection is
> > > >> > > > > > >>> > >>> > > > not accurate.
> > > >> > > > > > >>> > >>> > > > I believe the detection can be enhanced:
> DST
> > > >> rules
> > > >> > > can
> > > >> > > > be
> > > >> > > > > > >>> > detected
> > > >> > > > > > >>> > >>> using
> > > >> > > > > > >>> > >>> > > JS
> > > >> > > > > > >>> > >>> > > > code and taken into account while TZ
> > guessing
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > here is the example of JS code determining
> > > >> month TZ
> > > >> > > > > switch
> > > >> > > > > > is
> > > >> > > > > > >>> > >>> happening:
> > > >> > > > > > >>> > >>> > > > [2] line 50
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > Maybe it worth to implement something like
> > > this
> > > >> in
> > > >> > > > > Wicket?
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > [1]
> > > >> http://markmail.org/message/v7vmfburg4zrtizk
> > > >> > > > > > >>> > >>> > > > [2]
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> >
> > > >> > > > > > >>>
> > > >> > > > > >
> > > >> > > > >
> > > >> > > >
> > > >> > >
> > > >> >
> > > >>
> > >
> >
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > --
> > > >> > > > > > >>> > >>> > > > WBR
> > > >> > > > > > >>> > >>> > > > Maxim aka solomax
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > --
> > > >> > > > > > >>> > >>> > WBR
> > > >> > > > > > >>> > >>> > Maxim aka solomax
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >> --
> > > >> > > > > > >>> > >> WBR
> > > >> > > > > > >>> > >> Maxim aka solomax
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > > --
> > > >> > > > > > >>> > > WBR
> > > >> > > > > > >>> > > Maxim aka solomax
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> >
> > > >> > > > > > >>> >
> > > >> > > > > > >>> >
> > > >> > > > > > >>> > --
> > > >> > > > > > >>> > WBR
> > > >> > > > > > >>> > Maxim aka solomax
> > > >> > > > > > >>> >
> > > >> > > > > > >>>
> > > >> > > > > > >>
> > > >> > > > > > >>
> > > >> > > > > > >>
> > > >> > > > > > >> --
> > > >> > > > > > >> WBR
> > > >> > > > > > >> Maxim aka solomax
> > > >> > > > > > >>
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > > --
> > > >> > > > > > > WBR
> > > >> > > > > > > Maxim aka solomax
> > > >> > > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > > --
> > > >> > > > > > WBR
> > > >> > > > > > Maxim aka solomax
> > > >> > > > > >
> > > >> > > > >
> > > >> > > >
> > > >> > > >
> > > >> > > >
> > > >> > > > --
> > > >> > > > WBR
> > > >> > > > Maxim aka solomax
> > > >> > > >
> > > >> > >
> > > >> >
> > > >> >
> > > >> >
> > > >> > --
> > > >> > WBR
> > > >> > Maxim aka solomax
> > > >> >
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > > WBR
> > > > Maxim aka solomax
> > > >
> > >
> > >
> > >
> > > --
> > > WBR
> > > Maxim aka solomax
> > >
> >
> >
> >
> > --
> > Regards - Ernesto Reinaldo Barreiro
> >
>
>
>
> --
> WBR
> Maxim aka solomax
>
Re: Timezone detection in Wicket
Posted by Maxim Solodovnik <so...@gmail.com>.
The problem I see with any JS library is: timezones are changes, OS and
java knows the full history
Any JS library need to maintain the full TZ list and all changes.
In my code I get TZ rules (the exact date-time of each DST shift in a year)
and pass these data to java, then using Java's timezone definitions (which
are up to date and maintained by Java vendor) I'm trying to guess the
current TZ.
And it should work since we need to get TZ on Java side.
On Fri, Dec 5, 2014 at 10:44 AM, Ernesto Reinaldo Barreiro <
reiern70@gmail.com> wrote:
> For an old project I was using some JS library... I will try to dig the
> code and see what library it was: it seemed to work correctly at the time.
>
> On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <so...@gmail.com>
> wrote:
>
> > I would love to have library for such automatic detection
> > But the list of time zones is limited, and it currently determines my
> > current time zone wrong :(
> > I'll check it's code and will try to enhance mine, I'll try to enhance my
> > code
> >
> > In case you prefer to use this library I would vote for that since
> current
> > wicket code is also not very good :(
> > I believe this library can be used and enhanced.
> >
> > On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <so...@gmail.com>
> > wrote:
> >
> > > Thanks will try to check :)
> > >
> > > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <mgrigorov@apache.org
> >
> > > wrote:
> > >
> > >> Hi Maxim,
> > >>
> > >> Check http://joshowens.me/dealing-with-timezones-in-javascript/. It
> may
> > >> be
> > >> in use for you.
> > >>
> > >> Martin Grigorov
> > >> Wicket Training and Consulting
> > >> https://twitter.com/mtgrigorov
> > >>
> > >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <
> solomax666@gmail.com
> > >
> > >> wrote:
> > >>
> > >> > OK, will try to do it after ApacheConEU
> > >> > Thanks for the review!
> > >> >
> > >> > On 11 November 2014 14:33, Martin Grigorov <mg...@apache.org>
> > >> wrote:
> > >> >
> > >> > > I find the knowledge of the client timezone generally useful!
> > >> > > If you improve the points in my last mail and integrate it
> > >> > > in wicket-browser-info.js then it has better chance of being
> merged
> > >> ;-)
> > >> > >
> > >> > > Martin Grigorov
> > >> > > Wicket Training and Consulting
> > >> > > https://twitter.com/mtgrigorov
> > >> > >
> > >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> > >> solomax666@gmail.com
> > >> > >
> > >> > > wrote:
> > >> > >
> > >> > > > you are right :(
> > >> > > > I can improve it if it worth so
> > >> > > >
> > >> > > > The idea was to get client timezone rulez using JS: the exact
> DST
> > >> > switch
> > >> > > > start/end date/time
> > >> > > > send this data to the server and then find Java timezone with
> best
> > >> > match
> > >> > > >
> > >> > > >
> > >> > > > On 11 November 2014 14:24, Martin Grigorov <
> mgrigorov@apache.org>
> > >> > wrote:
> > >> > > >
> > >> > > > > Hi Maxim,
> > >> > > > >
> > >> > > > >
> > >> > > >
> > >> > >
> > >> >
> > >>
> >
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> > >> > > > > is not very usable in its current state.
> > >> > > > > My issues with it:
> > >> > > > > - no documentation
> > >> > > > > - no tests
> > >> > > > > - uses short named variables and method names (thus hard to
> > >> follow)
> > >> > > > > - ...
> > >> > > > >
> > >> > > > > I have forked it so I can use it as inspiration if I need it
> > >> later.
> > >> > > > > Feel free to remove it.
> > >> > > > >
> > >> > > > > Thanks!
> > >> > > > >
> > >> > > > > Martin Grigorov
> > >> > > > > Wicket Training and Consulting
> > >> > > > > https://twitter.com/mtgrigorov
> > >> > > > >
> > >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> > >> > > solomax666@gmail.com>
> > >> > > > > wrote:
> > >> > > > >
> > >> > > > > > @Martin
> > >> > > > > >
> > >> > > > > > were you able to take a look at this code?
> > >> > > > > > Is it look useful? Or I can remove it?
> > >> > > > > >
> > >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> > >> solomax666@gmail.com
> > >> > >
> > >> > > > > wrote:
> > >> > > > > >
> > >> > > > > > > Finally was able to create prototype:
> > >> > > > > > https://github.com/solomax/tzdetect
> > >> > > > > > > Maybe you can find it (or parts of it) usable
> > >> > > > > > >
> > >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> > >> > solomax666@gmail.com>
> > >> > > > > > wrote:
> > >> > > > > > >
> > >> > > > > > >> I believe if TZ rulez will be detected on client side,
> and
> > TZ
> > >> > > itself
> > >> > > > > on
> > >> > > > > > >> server side it might find user TZ good enough. (due to TZ
> > >> list
> > >> > > with
> > >> > > > > > rulez
> > >> > > > > > >> will be maintained by java vendor, not JS library itself)
> > >> > > > > > >> will try to modify the code and provide quickstart
> > >> > > > > > >>
> > >> > > > > > >>
> > >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> > >> > mgrigorov@apache.org>
> > >> > > > > > wrote:
> > >> > > > > > >>
> > >> > > > > > >>> see https://github.com/moment/moment-timezone/issues/55
> > >> > > > > > >>> if Moment.js cannot do it then I don't think we will do
> it
> > >> > > > > > >>>
> > >> > > > > > >>> Martin Grigorov
> > >> > > > > > >>> Wicket Training and Consulting
> > >> > > > > > >>> https://twitter.com/mtgrigorov
> > >> > > > > > >>>
> > >> > > > > > >>>
> > >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
> > >> > > > > > solomax666@gmail.com>
> > >> > > > > > >>> wrote:
> > >> > > > > > >>>
> > >> > > > > > >>> > there seems to be timezones with more than 1 dst start
> > per
> > >> > year
> > >> > > > :(
> > >> > > > > > >>> > code should be updated to reflect this :(
> > >> > > > > > >>> >
> > >> > > > > > >>> >
> > >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> > >> > > > solomax666@gmail.com>
> > >> > > > > > >>> wrote:
> > >> > > > > > >>> >
> > >> > > > > > >>> > > was tested against multiple Time zones listed here:
> > >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and own
> TZ
> > >> > > > > > >>> (Asia/Novosibirsk)
> > >> > > > > > >>> > >
> > >> > > > > > >>> > >
> > >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> > >> > > > > solomax666@gmail.com>
> > >> > > > > > >>> > wrote:
> > >> > > > > > >>> > >
> > >> > > > > > >>> > >> here is the JS code
> > >> > > > > > >>> > https://gist.github.com/solomax/e86cc77694d67120b8f5
> > >> > > > > > >>> > >> to get DST start date/time (if any)
> > >> > > > > > >>> > >> only minute offset was not tested due to
> impossibili
> > to
> > >> > set
> > >> > > TZ
> > >> > > > > > >>> "Chatham
> > >> > > > > > >>> > >> Island" on my Ubuntu)
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >> similar code can be added to get DST end date/time
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >> the code also might need to be "polished" a little
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> > >> > > > > mgrigorov@apache.org>
> > >> > > > > > >>> > wrote:
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
> > >> > > > > > solomax666@gmail.com>
> > >> > > > > > >>> > >>> wrote:
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > Actually my code can be extended to get
> > >> > > > > > >>> > >>> > 1) if TZ has DST or not
> > >> > > > > > >>> > >>> > 2) what month DST happening
> > >> > > > > > >>> > >>> > 3) the day of month DST happening
> > >> > > > > > >>> > >>> > 4) hour of day DST happening
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > I believe after all this info is available the
> > list
> > >> of
> > >> > > time
> > >> > > > > > zones
> > >> > > > > > >>> > with
> > >> > > > > > >>> > >>> > certain offset can be reduced to better match
> > >> current
> > >> > > user
> > >> > > > > TZ.
> > >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> > >>> This will increase the chance to include it ! ;-)
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
> > >> > > > > > mgrigorov@apache.org
> > >> > > > > > >>> >
> > >> > > > > > >>> > >>> wrote:
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > > Hi Maxim,
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > > Can you please provide more information how
> your
> > >> code
> > >> > > > > solves
> > >> > > > > > >>> the
> > >> > > > > > >>> > >>> problem ?
> > >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> > properly
> > >> > > detects
> > >> > > > > the
> > >> > > > > > >>> > >>> timezone
> > >> > > > > > >>> > >>> > > offset, but since there are many timezone ids
> > for
> > >> a
> > >> > > given
> > >> > > > > > >>> offset it
> > >> > > > > > >>> > >>> is
> > >> > > > > > >>> > >>> not
> > >> > > > > > >>> > >>> > > easy to detect the correct DST from the
> offset.
> > >> > > > > > >>> > >>> > > In your code I don't see anything that should
> > >> provide
> > >> > > the
> > >> > > > > > >>> missing
> > >> > > > > > >>> > >>> timezone
> > >> > > > > > >>> > >>> > > id.
> > >> > > > > > >>> > >>> > > Or I am missing something ?
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > > Martin Grigorov
> > >> > > > > > >>> > >>> > > Wicket Training and Consulting
> > >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> > Solodovnik <
> > >> > > > > > >>> > >>> solomax666@gmail.com>
> > >> > > > > > >>> > >>> > > wrote:
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > > > Hello All,
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > Some time ago we had user query [1] claiming
> > >> wicket
> > >> > > > based
> > >> > > > > > TZ
> > >> > > > > > >>> > >>> detection is
> > >> > > > > > >>> > >>> > > > not accurate.
> > >> > > > > > >>> > >>> > > > I believe the detection can be enhanced: DST
> > >> rules
> > >> > > can
> > >> > > > be
> > >> > > > > > >>> > detected
> > >> > > > > > >>> > >>> using
> > >> > > > > > >>> > >>> > > JS
> > >> > > > > > >>> > >>> > > > code and taken into account while TZ
> guessing
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > here is the example of JS code determining
> > >> month TZ
> > >> > > > > switch
> > >> > > > > > is
> > >> > > > > > >>> > >>> happening:
> > >> > > > > > >>> > >>> > > > [2] line 50
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > Maybe it worth to implement something like
> > this
> > >> in
> > >> > > > > Wicket?
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > [1]
> > >> http://markmail.org/message/v7vmfburg4zrtizk
> > >> > > > > > >>> > >>> > > > [2]
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> >
> > >> > > > > > >>>
> > >> > > > > >
> > >> > > > >
> > >> > > >
> > >> > >
> > >> >
> > >>
> >
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > --
> > >> > > > > > >>> > >>> > > > WBR
> > >> > > > > > >>> > >>> > > > Maxim aka solomax
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > --
> > >> > > > > > >>> > >>> > WBR
> > >> > > > > > >>> > >>> > Maxim aka solomax
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >> --
> > >> > > > > > >>> > >> WBR
> > >> > > > > > >>> > >> Maxim aka solomax
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >
> > >> > > > > > >>> > >
> > >> > > > > > >>> > >
> > >> > > > > > >>> > > --
> > >> > > > > > >>> > > WBR
> > >> > > > > > >>> > > Maxim aka solomax
> > >> > > > > > >>> > >
> > >> > > > > > >>> >
> > >> > > > > > >>> >
> > >> > > > > > >>> >
> > >> > > > > > >>> > --
> > >> > > > > > >>> > WBR
> > >> > > > > > >>> > Maxim aka solomax
> > >> > > > > > >>> >
> > >> > > > > > >>>
> > >> > > > > > >>
> > >> > > > > > >>
> > >> > > > > > >>
> > >> > > > > > >> --
> > >> > > > > > >> WBR
> > >> > > > > > >> Maxim aka solomax
> > >> > > > > > >>
> > >> > > > > > >
> > >> > > > > > >
> > >> > > > > > >
> > >> > > > > > > --
> > >> > > > > > > WBR
> > >> > > > > > > Maxim aka solomax
> > >> > > > > > >
> > >> > > > > >
> > >> > > > > >
> > >> > > > > >
> > >> > > > > > --
> > >> > > > > > WBR
> > >> > > > > > Maxim aka solomax
> > >> > > > > >
> > >> > > > >
> > >> > > >
> > >> > > >
> > >> > > >
> > >> > > > --
> > >> > > > WBR
> > >> > > > Maxim aka solomax
> > >> > > >
> > >> > >
> > >> >
> > >> >
> > >> >
> > >> > --
> > >> > WBR
> > >> > Maxim aka solomax
> > >> >
> > >>
> > >
> > >
> > >
> > > --
> > > WBR
> > > Maxim aka solomax
> > >
> >
> >
> >
> > --
> > WBR
> > Maxim aka solomax
> >
>
>
>
> --
> Regards - Ernesto Reinaldo Barreiro
>
--
WBR
Maxim aka solomax
Re: Timezone detection in Wicket
Posted by Ernesto Reinaldo Barreiro <re...@gmail.com>.
For an old project I was using some JS library... I will try to dig the
code and see what library it was: it seemed to work correctly at the time.
On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <so...@gmail.com>
wrote:
> I would love to have library for such automatic detection
> But the list of time zones is limited, and it currently determines my
> current time zone wrong :(
> I'll check it's code and will try to enhance mine, I'll try to enhance my
> code
>
> In case you prefer to use this library I would vote for that since current
> wicket code is also not very good :(
> I believe this library can be used and enhanced.
>
> On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <so...@gmail.com>
> wrote:
>
> > Thanks will try to check :)
> >
> > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <mg...@apache.org>
> > wrote:
> >
> >> Hi Maxim,
> >>
> >> Check http://joshowens.me/dealing-with-timezones-in-javascript/. It may
> >> be
> >> in use for you.
> >>
> >> Martin Grigorov
> >> Wicket Training and Consulting
> >> https://twitter.com/mtgrigorov
> >>
> >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <solomax666@gmail.com
> >
> >> wrote:
> >>
> >> > OK, will try to do it after ApacheConEU
> >> > Thanks for the review!
> >> >
> >> > On 11 November 2014 14:33, Martin Grigorov <mg...@apache.org>
> >> wrote:
> >> >
> >> > > I find the knowledge of the client timezone generally useful!
> >> > > If you improve the points in my last mail and integrate it
> >> > > in wicket-browser-info.js then it has better chance of being merged
> >> ;-)
> >> > >
> >> > > Martin Grigorov
> >> > > Wicket Training and Consulting
> >> > > https://twitter.com/mtgrigorov
> >> > >
> >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> >> solomax666@gmail.com
> >> > >
> >> > > wrote:
> >> > >
> >> > > > you are right :(
> >> > > > I can improve it if it worth so
> >> > > >
> >> > > > The idea was to get client timezone rulez using JS: the exact DST
> >> > switch
> >> > > > start/end date/time
> >> > > > send this data to the server and then find Java timezone with best
> >> > match
> >> > > >
> >> > > >
> >> > > > On 11 November 2014 14:24, Martin Grigorov <mg...@apache.org>
> >> > wrote:
> >> > > >
> >> > > > > Hi Maxim,
> >> > > > >
> >> > > > >
> >> > > >
> >> > >
> >> >
> >>
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> >> > > > > is not very usable in its current state.
> >> > > > > My issues with it:
> >> > > > > - no documentation
> >> > > > > - no tests
> >> > > > > - uses short named variables and method names (thus hard to
> >> follow)
> >> > > > > - ...
> >> > > > >
> >> > > > > I have forked it so I can use it as inspiration if I need it
> >> later.
> >> > > > > Feel free to remove it.
> >> > > > >
> >> > > > > Thanks!
> >> > > > >
> >> > > > > Martin Grigorov
> >> > > > > Wicket Training and Consulting
> >> > > > > https://twitter.com/mtgrigorov
> >> > > > >
> >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> >> > > solomax666@gmail.com>
> >> > > > > wrote:
> >> > > > >
> >> > > > > > @Martin
> >> > > > > >
> >> > > > > > were you able to take a look at this code?
> >> > > > > > Is it look useful? Or I can remove it?
> >> > > > > >
> >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> >> solomax666@gmail.com
> >> > >
> >> > > > > wrote:
> >> > > > > >
> >> > > > > > > Finally was able to create prototype:
> >> > > > > > https://github.com/solomax/tzdetect
> >> > > > > > > Maybe you can find it (or parts of it) usable
> >> > > > > > >
> >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> >> > solomax666@gmail.com>
> >> > > > > > wrote:
> >> > > > > > >
> >> > > > > > >> I believe if TZ rulez will be detected on client side, and
> TZ
> >> > > itself
> >> > > > > on
> >> > > > > > >> server side it might find user TZ good enough. (due to TZ
> >> list
> >> > > with
> >> > > > > > rulez
> >> > > > > > >> will be maintained by java vendor, not JS library itself)
> >> > > > > > >> will try to modify the code and provide quickstart
> >> > > > > > >>
> >> > > > > > >>
> >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> >> > mgrigorov@apache.org>
> >> > > > > > wrote:
> >> > > > > > >>
> >> > > > > > >>> see https://github.com/moment/moment-timezone/issues/55
> >> > > > > > >>> if Moment.js cannot do it then I don't think we will do it
> >> > > > > > >>>
> >> > > > > > >>> Martin Grigorov
> >> > > > > > >>> Wicket Training and Consulting
> >> > > > > > >>> https://twitter.com/mtgrigorov
> >> > > > > > >>>
> >> > > > > > >>>
> >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
> >> > > > > > solomax666@gmail.com>
> >> > > > > > >>> wrote:
> >> > > > > > >>>
> >> > > > > > >>> > there seems to be timezones with more than 1 dst start
> per
> >> > year
> >> > > > :(
> >> > > > > > >>> > code should be updated to reflect this :(
> >> > > > > > >>> >
> >> > > > > > >>> >
> >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> >> > > > solomax666@gmail.com>
> >> > > > > > >>> wrote:
> >> > > > > > >>> >
> >> > > > > > >>> > > was tested against multiple Time zones listed here:
> >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and own TZ
> >> > > > > > >>> (Asia/Novosibirsk)
> >> > > > > > >>> > >
> >> > > > > > >>> > >
> >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> >> > > > > solomax666@gmail.com>
> >> > > > > > >>> > wrote:
> >> > > > > > >>> > >
> >> > > > > > >>> > >> here is the JS code
> >> > > > > > >>> > https://gist.github.com/solomax/e86cc77694d67120b8f5
> >> > > > > > >>> > >> to get DST start date/time (if any)
> >> > > > > > >>> > >> only minute offset was not tested due to impossibili
> to
> >> > set
> >> > > TZ
> >> > > > > > >>> "Chatham
> >> > > > > > >>> > >> Island" on my Ubuntu)
> >> > > > > > >>> > >>
> >> > > > > > >>> > >> similar code can be added to get DST end date/time
> >> > > > > > >>> > >>
> >> > > > > > >>> > >> the code also might need to be "polished" a little
> >> > > > > > >>> > >>
> >> > > > > > >>> > >>
> >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> >> > > > > mgrigorov@apache.org>
> >> > > > > > >>> > wrote:
> >> > > > > > >>> > >>
> >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
> >> > > > > > solomax666@gmail.com>
> >> > > > > > >>> > >>> wrote:
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > Actually my code can be extended to get
> >> > > > > > >>> > >>> > 1) if TZ has DST or not
> >> > > > > > >>> > >>> > 2) what month DST happening
> >> > > > > > >>> > >>> > 3) the day of month DST happening
> >> > > > > > >>> > >>> > 4) hour of day DST happening
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > I believe after all this info is available the
> list
> >> of
> >> > > time
> >> > > > > > zones
> >> > > > > > >>> > with
> >> > > > > > >>> > >>> > certain offset can be reduced to better match
> >> current
> >> > > user
> >> > > > > TZ.
> >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> >> > > > > > >>> > >>>
> >> > > > > > >>> > >>> This will increase the chance to include it ! ;-)
> >> > > > > > >>> > >>>
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
> >> > > > > > mgrigorov@apache.org
> >> > > > > > >>> >
> >> > > > > > >>> > >>> wrote:
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > > Hi Maxim,
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > > Can you please provide more information how your
> >> code
> >> > > > > solves
> >> > > > > > >>> the
> >> > > > > > >>> > >>> problem ?
> >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> properly
> >> > > detects
> >> > > > > the
> >> > > > > > >>> > >>> timezone
> >> > > > > > >>> > >>> > > offset, but since there are many timezone ids
> for
> >> a
> >> > > given
> >> > > > > > >>> offset it
> >> > > > > > >>> > >>> is
> >> > > > > > >>> > >>> not
> >> > > > > > >>> > >>> > > easy to detect the correct DST from the offset.
> >> > > > > > >>> > >>> > > In your code I don't see anything that should
> >> provide
> >> > > the
> >> > > > > > >>> missing
> >> > > > > > >>> > >>> timezone
> >> > > > > > >>> > >>> > > id.
> >> > > > > > >>> > >>> > > Or I am missing something ?
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > > Martin Grigorov
> >> > > > > > >>> > >>> > > Wicket Training and Consulting
> >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> Solodovnik <
> >> > > > > > >>> > >>> solomax666@gmail.com>
> >> > > > > > >>> > >>> > > wrote:
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > > > Hello All,
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > Some time ago we had user query [1] claiming
> >> wicket
> >> > > > based
> >> > > > > > TZ
> >> > > > > > >>> > >>> detection is
> >> > > > > > >>> > >>> > > > not accurate.
> >> > > > > > >>> > >>> > > > I believe the detection can be enhanced: DST
> >> rules
> >> > > can
> >> > > > be
> >> > > > > > >>> > detected
> >> > > > > > >>> > >>> using
> >> > > > > > >>> > >>> > > JS
> >> > > > > > >>> > >>> > > > code and taken into account while TZ guessing
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > here is the example of JS code determining
> >> month TZ
> >> > > > > switch
> >> > > > > > is
> >> > > > > > >>> > >>> happening:
> >> > > > > > >>> > >>> > > > [2] line 50
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > Maybe it worth to implement something like
> this
> >> in
> >> > > > > Wicket?
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > [1]
> >> http://markmail.org/message/v7vmfburg4zrtizk
> >> > > > > > >>> > >>> > > > [2]
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>>
> >> > > > > > >>> > >>>
> >> > > > > > >>> >
> >> > > > > > >>>
> >> > > > > >
> >> > > > >
> >> > > >
> >> > >
> >> >
> >>
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > --
> >> > > > > > >>> > >>> > > > WBR
> >> > > > > > >>> > >>> > > > Maxim aka solomax
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > --
> >> > > > > > >>> > >>> > WBR
> >> > > > > > >>> > >>> > Maxim aka solomax
> >> > > > > > >>> > >>>
> >> > > > > > >>> > >>
> >> > > > > > >>> > >>
> >> > > > > > >>> > >>
> >> > > > > > >>> > >> --
> >> > > > > > >>> > >> WBR
> >> > > > > > >>> > >> Maxim aka solomax
> >> > > > > > >>> > >>
> >> > > > > > >>> > >
> >> > > > > > >>> > >
> >> > > > > > >>> > >
> >> > > > > > >>> > > --
> >> > > > > > >>> > > WBR
> >> > > > > > >>> > > Maxim aka solomax
> >> > > > > > >>> > >
> >> > > > > > >>> >
> >> > > > > > >>> >
> >> > > > > > >>> >
> >> > > > > > >>> > --
> >> > > > > > >>> > WBR
> >> > > > > > >>> > Maxim aka solomax
> >> > > > > > >>> >
> >> > > > > > >>>
> >> > > > > > >>
> >> > > > > > >>
> >> > > > > > >>
> >> > > > > > >> --
> >> > > > > > >> WBR
> >> > > > > > >> Maxim aka solomax
> >> > > > > > >>
> >> > > > > > >
> >> > > > > > >
> >> > > > > > >
> >> > > > > > > --
> >> > > > > > > WBR
> >> > > > > > > Maxim aka solomax
> >> > > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > > --
> >> > > > > > WBR
> >> > > > > > Maxim aka solomax
> >> > > > > >
> >> > > > >
> >> > > >
> >> > > >
> >> > > >
> >> > > > --
> >> > > > WBR
> >> > > > Maxim aka solomax
> >> > > >
> >> > >
> >> >
> >> >
> >> >
> >> > --
> >> > WBR
> >> > Maxim aka solomax
> >> >
> >>
> >
> >
> >
> > --
> > WBR
> > Maxim aka solomax
> >
>
>
>
> --
> WBR
> Maxim aka solomax
>
--
Regards - Ernesto Reinaldo Barreiro
Re: Timezone detection in Wicket
Posted by Maxim Solodovnik <so...@gmail.com>.
I finally have switched to LocalDate/DateTime, everything seems to work as
expected
Thanks for the help!
On Fri, Dec 5, 2014 at 6:57 PM, Nick Pratt <nb...@gmail.com> wrote:
> Cant you just put a banner on the site, saying "Based on your x,y,z, we
> think your timezone is: whatever/wherever. If this is incorrect, please
> click here" and then let the user set the value - surely this would be far
> quicker to implement?
>
> I personally dont mind being asked this on a website - its a one off
> operation, and then its set. And if I ever need to change it, Ill go look
> in my user settings/preferences.
>
> N
>
> On Fri, Dec 5, 2014 at 4:44 AM, Maxim Solodovnik <so...@gmail.com>
> wrote:
>
> > Actually I would like to get better TZ guessing.
> > This [1] thread starts this topic for me
> >
> > Actual logic used in Wicket is:
> > 1) get TZ offset this year Jan, 1
> > 2) get TZ offset this year Jul, 1
> > guess according this to offsets
> >
> > Currently in Russia we have absolutely "un-guessable" situation: we were
> in
> > GMT+7 (without DST) and since October we are in GMT+6 (without DST)
> >
> > AjaxHelloBrowser gave me:
> > Chrome: GMT+6
> > FF: GMT+7
> >
> > Situation described in original thread [1] is somehow similar: the rules
> > are close, but there is period of time when it doesn't match
> > I would like to implement ~98% accurate tz guesser to avoid such
> situations
> >
> > [1] http://markmail.org/thread/v7vmfburg4zrtizk
> >
> > On Fri, Dec 5, 2014 at 3:29 PM, Martin Grigorov <mg...@apache.org>
> > wrote:
> >
> > > Hi Maxim,
> > >
> > > I'm not saying that we should use this JS library.
> > > I just saw it and decided to share it with you so that you can see
> > whether
> > > it will help you anyhow.
> > >
> > > Also I've noticed that Wicket already has code for detecting the time
> > zone.
> > > See org.apache.wicket.protocol.http.ClientProperties#getTimeZone
> > > http://www.wicket-library.com/wicket-examples-6.0.x/ajaxhellobrowser/
> > for
> > > me shows:
> > > Based on your settings, your time is: 1:16:44 AM PST (and your time
> > zone
> > > is Central European Time)
> > > The time is not what I'd expect, it should be 10:16:44 AM CET instead.
> > > The timezone (CET) is correct though.
> > > But I guess you want to see something like Europe/Moskow ? I.e. the
> time
> > > zone identifier. For this you will need the locale too.
> > >
> > > P.S. Running wicket-examples locally gives correct results. So it could
> > be
> > > that wicket-library.com runs with wrong clock ?!
> > >
> > >
> > > Martin Grigorov
> > > Wicket Training and Consulting
> > > https://twitter.com/mtgrigorov
> > >
> > > On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <
> solomax666@gmail.com>
> > > wrote:
> > >
> > > > I would love to have library for such automatic detection
> > > > But the list of time zones is limited, and it currently determines my
> > > > current time zone wrong :(
> > > > I'll check it's code and will try to enhance mine, I'll try to
> enhance
> > my
> > > > code
> > > >
> > > > In case you prefer to use this library I would vote for that since
> > > current
> > > > wicket code is also not very good :(
> > > > I believe this library can be used and enhanced.
> > > >
> > > > On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <
> > solomax666@gmail.com>
> > > > wrote:
> > > >
> > > > > Thanks will try to check :)
> > > > >
> > > > > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <
> > mgrigorov@apache.org
> > > >
> > > > > wrote:
> > > > >
> > > > >> Hi Maxim,
> > > > >>
> > > > >> Check http://joshowens.me/dealing-with-timezones-in-javascript/.
> It
> > > may
> > > > >> be
> > > > >> in use for you.
> > > > >>
> > > > >> Martin Grigorov
> > > > >> Wicket Training and Consulting
> > > > >> https://twitter.com/mtgrigorov
> > > > >>
> > > > >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <
> > > solomax666@gmail.com
> > > > >
> > > > >> wrote:
> > > > >>
> > > > >> > OK, will try to do it after ApacheConEU
> > > > >> > Thanks for the review!
> > > > >> >
> > > > >> > On 11 November 2014 14:33, Martin Grigorov <
> mgrigorov@apache.org>
> > > > >> wrote:
> > > > >> >
> > > > >> > > I find the knowledge of the client timezone generally useful!
> > > > >> > > If you improve the points in my last mail and integrate it
> > > > >> > > in wicket-browser-info.js then it has better chance of being
> > > merged
> > > > >> ;-)
> > > > >> > >
> > > > >> > > Martin Grigorov
> > > > >> > > Wicket Training and Consulting
> > > > >> > > https://twitter.com/mtgrigorov
> > > > >> > >
> > > > >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> > > > >> solomax666@gmail.com
> > > > >> > >
> > > > >> > > wrote:
> > > > >> > >
> > > > >> > > > you are right :(
> > > > >> > > > I can improve it if it worth so
> > > > >> > > >
> > > > >> > > > The idea was to get client timezone rulez using JS: the
> exact
> > > DST
> > > > >> > switch
> > > > >> > > > start/end date/time
> > > > >> > > > send this data to the server and then find Java timezone
> with
> > > best
> > > > >> > match
> > > > >> > > >
> > > > >> > > >
> > > > >> > > > On 11 November 2014 14:24, Martin Grigorov <
> > > mgrigorov@apache.org>
> > > > >> > wrote:
> > > > >> > > >
> > > > >> > > > > Hi Maxim,
> > > > >> > > > >
> > > > >> > > > >
> > > > >> > > >
> > > > >> > >
> > > > >> >
> > > > >>
> > > >
> > >
> >
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> > > > >> > > > > is not very usable in its current state.
> > > > >> > > > > My issues with it:
> > > > >> > > > > - no documentation
> > > > >> > > > > - no tests
> > > > >> > > > > - uses short named variables and method names (thus hard
> to
> > > > >> follow)
> > > > >> > > > > - ...
> > > > >> > > > >
> > > > >> > > > > I have forked it so I can use it as inspiration if I need
> it
> > > > >> later.
> > > > >> > > > > Feel free to remove it.
> > > > >> > > > >
> > > > >> > > > > Thanks!
> > > > >> > > > >
> > > > >> > > > > Martin Grigorov
> > > > >> > > > > Wicket Training and Consulting
> > > > >> > > > > https://twitter.com/mtgrigorov
> > > > >> > > > >
> > > > >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> > > > >> > > solomax666@gmail.com>
> > > > >> > > > > wrote:
> > > > >> > > > >
> > > > >> > > > > > @Martin
> > > > >> > > > > >
> > > > >> > > > > > were you able to take a look at this code?
> > > > >> > > > > > Is it look useful? Or I can remove it?
> > > > >> > > > > >
> > > > >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> > > > >> solomax666@gmail.com
> > > > >> > >
> > > > >> > > > > wrote:
> > > > >> > > > > >
> > > > >> > > > > > > Finally was able to create prototype:
> > > > >> > > > > > https://github.com/solomax/tzdetect
> > > > >> > > > > > > Maybe you can find it (or parts of it) usable
> > > > >> > > > > > >
> > > > >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> > > > >> > solomax666@gmail.com>
> > > > >> > > > > > wrote:
> > > > >> > > > > > >
> > > > >> > > > > > >> I believe if TZ rulez will be detected on client
> side,
> > > and
> > > > TZ
> > > > >> > > itself
> > > > >> > > > > on
> > > > >> > > > > > >> server side it might find user TZ good enough. (due
> to
> > TZ
> > > > >> list
> > > > >> > > with
> > > > >> > > > > > rulez
> > > > >> > > > > > >> will be maintained by java vendor, not JS library
> > itself)
> > > > >> > > > > > >> will try to modify the code and provide quickstart
> > > > >> > > > > > >>
> > > > >> > > > > > >>
> > > > >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> > > > >> > mgrigorov@apache.org>
> > > > >> > > > > > wrote:
> > > > >> > > > > > >>
> > > > >> > > > > > >>> see
> > https://github.com/moment/moment-timezone/issues/55
> > > > >> > > > > > >>> if Moment.js cannot do it then I don't think we will
> > do
> > > it
> > > > >> > > > > > >>>
> > > > >> > > > > > >>> Martin Grigorov
> > > > >> > > > > > >>> Wicket Training and Consulting
> > > > >> > > > > > >>> https://twitter.com/mtgrigorov
> > > > >> > > > > > >>>
> > > > >> > > > > > >>>
> > > > >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
> > > > >> > > > > > solomax666@gmail.com>
> > > > >> > > > > > >>> wrote:
> > > > >> > > > > > >>>
> > > > >> > > > > > >>> > there seems to be timezones with more than 1 dst
> > start
> > > > per
> > > > >> > year
> > > > >> > > > :(
> > > > >> > > > > > >>> > code should be updated to reflect this :(
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> > > > >> > > > solomax666@gmail.com>
> > > > >> > > > > > >>> wrote:
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> > > was tested against multiple Time zones listed
> > here:
> > > > >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and
> > own
> > > TZ
> > > > >> > > > > > >>> (Asia/Novosibirsk)
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> > > > >> > > > > solomax666@gmail.com>
> > > > >> > > > > > >>> > wrote:
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > >> here is the JS code
> > > > >> > > > > > >>> >
> > https://gist.github.com/solomax/e86cc77694d67120b8f5
> > > > >> > > > > > >>> > >> to get DST start date/time (if any)
> > > > >> > > > > > >>> > >> only minute offset was not tested due to
> > > impossibili
> > > > to
> > > > >> > set
> > > > >> > > TZ
> > > > >> > > > > > >>> "Chatham
> > > > >> > > > > > >>> > >> Island" on my Ubuntu)
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >> similar code can be added to get DST end
> > date/time
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >> the code also might need to be "polished" a
> > little
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> > > > >> > > > > mgrigorov@apache.org>
> > > > >> > > > > > >>> > wrote:
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
> > > > >> > > > > > solomax666@gmail.com>
> > > > >> > > > > > >>> > >>> wrote:
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > Actually my code can be extended to get
> > > > >> > > > > > >>> > >>> > 1) if TZ has DST or not
> > > > >> > > > > > >>> > >>> > 2) what month DST happening
> > > > >> > > > > > >>> > >>> > 3) the day of month DST happening
> > > > >> > > > > > >>> > >>> > 4) hour of day DST happening
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > I believe after all this info is available
> the
> > > > list
> > > > >> of
> > > > >> > > time
> > > > >> > > > > > zones
> > > > >> > > > > > >>> > with
> > > > >> > > > > > >>> > >>> > certain offset can be reduced to better
> match
> > > > >> current
> > > > >> > > user
> > > > >> > > > > TZ.
> > > > >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> > >>> This will increase the chance to include it !
> > ;-)
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
> > > > >> > > > > > mgrigorov@apache.org
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> > >>> wrote:
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > > Hi Maxim,
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > > Can you please provide more information
> how
> > > your
> > > > >> code
> > > > >> > > > > solves
> > > > >> > > > > > >>> the
> > > > >> > > > > > >>> > >>> problem ?
> > > > >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> > > > properly
> > > > >> > > detects
> > > > >> > > > > the
> > > > >> > > > > > >>> > >>> timezone
> > > > >> > > > > > >>> > >>> > > offset, but since there are many timezone
> > ids
> > > > for
> > > > >> a
> > > > >> > > given
> > > > >> > > > > > >>> offset it
> > > > >> > > > > > >>> > >>> is
> > > > >> > > > > > >>> > >>> not
> > > > >> > > > > > >>> > >>> > > easy to detect the correct DST from the
> > > offset.
> > > > >> > > > > > >>> > >>> > > In your code I don't see anything that
> > should
> > > > >> provide
> > > > >> > > the
> > > > >> > > > > > >>> missing
> > > > >> > > > > > >>> > >>> timezone
> > > > >> > > > > > >>> > >>> > > id.
> > > > >> > > > > > >>> > >>> > > Or I am missing something ?
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > > Martin Grigorov
> > > > >> > > > > > >>> > >>> > > Wicket Training and Consulting
> > > > >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> > > > Solodovnik <
> > > > >> > > > > > >>> > >>> solomax666@gmail.com>
> > > > >> > > > > > >>> > >>> > > wrote:
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> > > > Hello All,
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > Some time ago we had user query [1]
> > claiming
> > > > >> wicket
> > > > >> > > > based
> > > > >> > > > > > TZ
> > > > >> > > > > > >>> > >>> detection is
> > > > >> > > > > > >>> > >>> > > > not accurate.
> > > > >> > > > > > >>> > >>> > > > I believe the detection can be enhanced:
> > DST
> > > > >> rules
> > > > >> > > can
> > > > >> > > > be
> > > > >> > > > > > >>> > detected
> > > > >> > > > > > >>> > >>> using
> > > > >> > > > > > >>> > >>> > > JS
> > > > >> > > > > > >>> > >>> > > > code and taken into account while TZ
> > > guessing
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > here is the example of JS code
> determining
> > > > >> month TZ
> > > > >> > > > > switch
> > > > >> > > > > > is
> > > > >> > > > > > >>> > >>> happening:
> > > > >> > > > > > >>> > >>> > > > [2] line 50
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > Maybe it worth to implement something
> like
> > > > this
> > > > >> in
> > > > >> > > > > Wicket?
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > [1]
> > > > >> http://markmail.org/message/v7vmfburg4zrtizk
> > > > >> > > > > > >>> > >>> > > > [2]
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>>
> > > > >> > > > > >
> > > > >> > > > >
> > > > >> > > >
> > > > >> > >
> > > > >> >
> > > > >>
> > > >
> > >
> >
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > > > --
> > > > >> > > > > > >>> > >>> > > > WBR
> > > > >> > > > > > >>> > >>> > > > Maxim aka solomax
> > > > >> > > > > > >>> > >>> > > >
> > > > >> > > > > > >>> > >>> > >
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> >
> > > > >> > > > > > >>> > >>> > --
> > > > >> > > > > > >>> > >>> > WBR
> > > > >> > > > > > >>> > >>> > Maxim aka solomax
> > > > >> > > > > > >>> > >>>
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >> --
> > > > >> > > > > > >>> > >> WBR
> > > > >> > > > > > >>> > >> Maxim aka solomax
> > > > >> > > > > > >>> > >>
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> > > --
> > > > >> > > > > > >>> > > WBR
> > > > >> > > > > > >>> > > Maxim aka solomax
> > > > >> > > > > > >>> > >
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>> > --
> > > > >> > > > > > >>> > WBR
> > > > >> > > > > > >>> > Maxim aka solomax
> > > > >> > > > > > >>> >
> > > > >> > > > > > >>>
> > > > >> > > > > > >>
> > > > >> > > > > > >>
> > > > >> > > > > > >>
> > > > >> > > > > > >> --
> > > > >> > > > > > >> WBR
> > > > >> > > > > > >> Maxim aka solomax
> > > > >> > > > > > >>
> > > > >> > > > > > >
> > > > >> > > > > > >
> > > > >> > > > > > >
> > > > >> > > > > > > --
> > > > >> > > > > > > WBR
> > > > >> > > > > > > Maxim aka solomax
> > > > >> > > > > > >
> > > > >> > > > > >
> > > > >> > > > > >
> > > > >> > > > > >
> > > > >> > > > > > --
> > > > >> > > > > > WBR
> > > > >> > > > > > Maxim aka solomax
> > > > >> > > > > >
> > > > >> > > > >
> > > > >> > > >
> > > > >> > > >
> > > > >> > > >
> > > > >> > > > --
> > > > >> > > > WBR
> > > > >> > > > Maxim aka solomax
> > > > >> > > >
> > > > >> > >
> > > > >> >
> > > > >> >
> > > > >> >
> > > > >> > --
> > > > >> > WBR
> > > > >> > Maxim aka solomax
> > > > >> >
> > > > >>
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > WBR
> > > > > Maxim aka solomax
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > WBR
> > > > Maxim aka solomax
> > > >
> > >
> >
> >
> >
> > --
> > WBR
> > Maxim aka solomax
> >
>
--
WBR
Maxim aka solomax
Re: Timezone detection in Wicket
Posted by Nick Pratt <nb...@gmail.com>.
Cant you just put a banner on the site, saying "Based on your x,y,z, we
think your timezone is: whatever/wherever. If this is incorrect, please
click here" and then let the user set the value - surely this would be far
quicker to implement?
I personally dont mind being asked this on a website - its a one off
operation, and then its set. And if I ever need to change it, Ill go look
in my user settings/preferences.
N
On Fri, Dec 5, 2014 at 4:44 AM, Maxim Solodovnik <so...@gmail.com>
wrote:
> Actually I would like to get better TZ guessing.
> This [1] thread starts this topic for me
>
> Actual logic used in Wicket is:
> 1) get TZ offset this year Jan, 1
> 2) get TZ offset this year Jul, 1
> guess according this to offsets
>
> Currently in Russia we have absolutely "un-guessable" situation: we were in
> GMT+7 (without DST) and since October we are in GMT+6 (without DST)
>
> AjaxHelloBrowser gave me:
> Chrome: GMT+6
> FF: GMT+7
>
> Situation described in original thread [1] is somehow similar: the rules
> are close, but there is period of time when it doesn't match
> I would like to implement ~98% accurate tz guesser to avoid such situations
>
> [1] http://markmail.org/thread/v7vmfburg4zrtizk
>
> On Fri, Dec 5, 2014 at 3:29 PM, Martin Grigorov <mg...@apache.org>
> wrote:
>
> > Hi Maxim,
> >
> > I'm not saying that we should use this JS library.
> > I just saw it and decided to share it with you so that you can see
> whether
> > it will help you anyhow.
> >
> > Also I've noticed that Wicket already has code for detecting the time
> zone.
> > See org.apache.wicket.protocol.http.ClientProperties#getTimeZone
> > http://www.wicket-library.com/wicket-examples-6.0.x/ajaxhellobrowser/
> for
> > me shows:
> > Based on your settings, your time is: 1:16:44 AM PST (and your time
> zone
> > is Central European Time)
> > The time is not what I'd expect, it should be 10:16:44 AM CET instead.
> > The timezone (CET) is correct though.
> > But I guess you want to see something like Europe/Moskow ? I.e. the time
> > zone identifier. For this you will need the locale too.
> >
> > P.S. Running wicket-examples locally gives correct results. So it could
> be
> > that wicket-library.com runs with wrong clock ?!
> >
> >
> > Martin Grigorov
> > Wicket Training and Consulting
> > https://twitter.com/mtgrigorov
> >
> > On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <so...@gmail.com>
> > wrote:
> >
> > > I would love to have library for such automatic detection
> > > But the list of time zones is limited, and it currently determines my
> > > current time zone wrong :(
> > > I'll check it's code and will try to enhance mine, I'll try to enhance
> my
> > > code
> > >
> > > In case you prefer to use this library I would vote for that since
> > current
> > > wicket code is also not very good :(
> > > I believe this library can be used and enhanced.
> > >
> > > On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <
> solomax666@gmail.com>
> > > wrote:
> > >
> > > > Thanks will try to check :)
> > > >
> > > > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <
> mgrigorov@apache.org
> > >
> > > > wrote:
> > > >
> > > >> Hi Maxim,
> > > >>
> > > >> Check http://joshowens.me/dealing-with-timezones-in-javascript/. It
> > may
> > > >> be
> > > >> in use for you.
> > > >>
> > > >> Martin Grigorov
> > > >> Wicket Training and Consulting
> > > >> https://twitter.com/mtgrigorov
> > > >>
> > > >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <
> > solomax666@gmail.com
> > > >
> > > >> wrote:
> > > >>
> > > >> > OK, will try to do it after ApacheConEU
> > > >> > Thanks for the review!
> > > >> >
> > > >> > On 11 November 2014 14:33, Martin Grigorov <mg...@apache.org>
> > > >> wrote:
> > > >> >
> > > >> > > I find the knowledge of the client timezone generally useful!
> > > >> > > If you improve the points in my last mail and integrate it
> > > >> > > in wicket-browser-info.js then it has better chance of being
> > merged
> > > >> ;-)
> > > >> > >
> > > >> > > Martin Grigorov
> > > >> > > Wicket Training and Consulting
> > > >> > > https://twitter.com/mtgrigorov
> > > >> > >
> > > >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> > > >> solomax666@gmail.com
> > > >> > >
> > > >> > > wrote:
> > > >> > >
> > > >> > > > you are right :(
> > > >> > > > I can improve it if it worth so
> > > >> > > >
> > > >> > > > The idea was to get client timezone rulez using JS: the exact
> > DST
> > > >> > switch
> > > >> > > > start/end date/time
> > > >> > > > send this data to the server and then find Java timezone with
> > best
> > > >> > match
> > > >> > > >
> > > >> > > >
> > > >> > > > On 11 November 2014 14:24, Martin Grigorov <
> > mgrigorov@apache.org>
> > > >> > wrote:
> > > >> > > >
> > > >> > > > > Hi Maxim,
> > > >> > > > >
> > > >> > > > >
> > > >> > > >
> > > >> > >
> > > >> >
> > > >>
> > >
> >
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> > > >> > > > > is not very usable in its current state.
> > > >> > > > > My issues with it:
> > > >> > > > > - no documentation
> > > >> > > > > - no tests
> > > >> > > > > - uses short named variables and method names (thus hard to
> > > >> follow)
> > > >> > > > > - ...
> > > >> > > > >
> > > >> > > > > I have forked it so I can use it as inspiration if I need it
> > > >> later.
> > > >> > > > > Feel free to remove it.
> > > >> > > > >
> > > >> > > > > Thanks!
> > > >> > > > >
> > > >> > > > > Martin Grigorov
> > > >> > > > > Wicket Training and Consulting
> > > >> > > > > https://twitter.com/mtgrigorov
> > > >> > > > >
> > > >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> > > >> > > solomax666@gmail.com>
> > > >> > > > > wrote:
> > > >> > > > >
> > > >> > > > > > @Martin
> > > >> > > > > >
> > > >> > > > > > were you able to take a look at this code?
> > > >> > > > > > Is it look useful? Or I can remove it?
> > > >> > > > > >
> > > >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> > > >> solomax666@gmail.com
> > > >> > >
> > > >> > > > > wrote:
> > > >> > > > > >
> > > >> > > > > > > Finally was able to create prototype:
> > > >> > > > > > https://github.com/solomax/tzdetect
> > > >> > > > > > > Maybe you can find it (or parts of it) usable
> > > >> > > > > > >
> > > >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> > > >> > solomax666@gmail.com>
> > > >> > > > > > wrote:
> > > >> > > > > > >
> > > >> > > > > > >> I believe if TZ rulez will be detected on client side,
> > and
> > > TZ
> > > >> > > itself
> > > >> > > > > on
> > > >> > > > > > >> server side it might find user TZ good enough. (due to
> TZ
> > > >> list
> > > >> > > with
> > > >> > > > > > rulez
> > > >> > > > > > >> will be maintained by java vendor, not JS library
> itself)
> > > >> > > > > > >> will try to modify the code and provide quickstart
> > > >> > > > > > >>
> > > >> > > > > > >>
> > > >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> > > >> > mgrigorov@apache.org>
> > > >> > > > > > wrote:
> > > >> > > > > > >>
> > > >> > > > > > >>> see
> https://github.com/moment/moment-timezone/issues/55
> > > >> > > > > > >>> if Moment.js cannot do it then I don't think we will
> do
> > it
> > > >> > > > > > >>>
> > > >> > > > > > >>> Martin Grigorov
> > > >> > > > > > >>> Wicket Training and Consulting
> > > >> > > > > > >>> https://twitter.com/mtgrigorov
> > > >> > > > > > >>>
> > > >> > > > > > >>>
> > > >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
> > > >> > > > > > solomax666@gmail.com>
> > > >> > > > > > >>> wrote:
> > > >> > > > > > >>>
> > > >> > > > > > >>> > there seems to be timezones with more than 1 dst
> start
> > > per
> > > >> > year
> > > >> > > > :(
> > > >> > > > > > >>> > code should be updated to reflect this :(
> > > >> > > > > > >>> >
> > > >> > > > > > >>> >
> > > >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> > > >> > > > solomax666@gmail.com>
> > > >> > > > > > >>> wrote:
> > > >> > > > > > >>> >
> > > >> > > > > > >>> > > was tested against multiple Time zones listed
> here:
> > > >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and
> own
> > TZ
> > > >> > > > > > >>> (Asia/Novosibirsk)
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> > > >> > > > > solomax666@gmail.com>
> > > >> > > > > > >>> > wrote:
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > >> here is the JS code
> > > >> > > > > > >>> >
> https://gist.github.com/solomax/e86cc77694d67120b8f5
> > > >> > > > > > >>> > >> to get DST start date/time (if any)
> > > >> > > > > > >>> > >> only minute offset was not tested due to
> > impossibili
> > > to
> > > >> > set
> > > >> > > TZ
> > > >> > > > > > >>> "Chatham
> > > >> > > > > > >>> > >> Island" on my Ubuntu)
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >> similar code can be added to get DST end
> date/time
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >> the code also might need to be "polished" a
> little
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> > > >> > > > > mgrigorov@apache.org>
> > > >> > > > > > >>> > wrote:
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
> > > >> > > > > > solomax666@gmail.com>
> > > >> > > > > > >>> > >>> wrote:
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > Actually my code can be extended to get
> > > >> > > > > > >>> > >>> > 1) if TZ has DST or not
> > > >> > > > > > >>> > >>> > 2) what month DST happening
> > > >> > > > > > >>> > >>> > 3) the day of month DST happening
> > > >> > > > > > >>> > >>> > 4) hour of day DST happening
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > I believe after all this info is available the
> > > list
> > > >> of
> > > >> > > time
> > > >> > > > > > zones
> > > >> > > > > > >>> > with
> > > >> > > > > > >>> > >>> > certain offset can be reduced to better match
> > > >> current
> > > >> > > user
> > > >> > > > > TZ.
> > > >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> > >>> This will increase the chance to include it !
> ;-)
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
> > > >> > > > > > mgrigorov@apache.org
> > > >> > > > > > >>> >
> > > >> > > > > > >>> > >>> wrote:
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > > Hi Maxim,
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > > Can you please provide more information how
> > your
> > > >> code
> > > >> > > > > solves
> > > >> > > > > > >>> the
> > > >> > > > > > >>> > >>> problem ?
> > > >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> > > properly
> > > >> > > detects
> > > >> > > > > the
> > > >> > > > > > >>> > >>> timezone
> > > >> > > > > > >>> > >>> > > offset, but since there are many timezone
> ids
> > > for
> > > >> a
> > > >> > > given
> > > >> > > > > > >>> offset it
> > > >> > > > > > >>> > >>> is
> > > >> > > > > > >>> > >>> not
> > > >> > > > > > >>> > >>> > > easy to detect the correct DST from the
> > offset.
> > > >> > > > > > >>> > >>> > > In your code I don't see anything that
> should
> > > >> provide
> > > >> > > the
> > > >> > > > > > >>> missing
> > > >> > > > > > >>> > >>> timezone
> > > >> > > > > > >>> > >>> > > id.
> > > >> > > > > > >>> > >>> > > Or I am missing something ?
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > > Martin Grigorov
> > > >> > > > > > >>> > >>> > > Wicket Training and Consulting
> > > >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> > > Solodovnik <
> > > >> > > > > > >>> > >>> solomax666@gmail.com>
> > > >> > > > > > >>> > >>> > > wrote:
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> > > > Hello All,
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > Some time ago we had user query [1]
> claiming
> > > >> wicket
> > > >> > > > based
> > > >> > > > > > TZ
> > > >> > > > > > >>> > >>> detection is
> > > >> > > > > > >>> > >>> > > > not accurate.
> > > >> > > > > > >>> > >>> > > > I believe the detection can be enhanced:
> DST
> > > >> rules
> > > >> > > can
> > > >> > > > be
> > > >> > > > > > >>> > detected
> > > >> > > > > > >>> > >>> using
> > > >> > > > > > >>> > >>> > > JS
> > > >> > > > > > >>> > >>> > > > code and taken into account while TZ
> > guessing
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > here is the example of JS code determining
> > > >> month TZ
> > > >> > > > > switch
> > > >> > > > > > is
> > > >> > > > > > >>> > >>> happening:
> > > >> > > > > > >>> > >>> > > > [2] line 50
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > Maybe it worth to implement something like
> > > this
> > > >> in
> > > >> > > > > Wicket?
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > [1]
> > > >> http://markmail.org/message/v7vmfburg4zrtizk
> > > >> > > > > > >>> > >>> > > > [2]
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> >
> > > >> > > > > > >>>
> > > >> > > > > >
> > > >> > > > >
> > > >> > > >
> > > >> > >
> > > >> >
> > > >>
> > >
> >
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > > > --
> > > >> > > > > > >>> > >>> > > > WBR
> > > >> > > > > > >>> > >>> > > > Maxim aka solomax
> > > >> > > > > > >>> > >>> > > >
> > > >> > > > > > >>> > >>> > >
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> >
> > > >> > > > > > >>> > >>> > --
> > > >> > > > > > >>> > >>> > WBR
> > > >> > > > > > >>> > >>> > Maxim aka solomax
> > > >> > > > > > >>> > >>>
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >> --
> > > >> > > > > > >>> > >> WBR
> > > >> > > > > > >>> > >> Maxim aka solomax
> > > >> > > > > > >>> > >>
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> > > --
> > > >> > > > > > >>> > > WBR
> > > >> > > > > > >>> > > Maxim aka solomax
> > > >> > > > > > >>> > >
> > > >> > > > > > >>> >
> > > >> > > > > > >>> >
> > > >> > > > > > >>> >
> > > >> > > > > > >>> > --
> > > >> > > > > > >>> > WBR
> > > >> > > > > > >>> > Maxim aka solomax
> > > >> > > > > > >>> >
> > > >> > > > > > >>>
> > > >> > > > > > >>
> > > >> > > > > > >>
> > > >> > > > > > >>
> > > >> > > > > > >> --
> > > >> > > > > > >> WBR
> > > >> > > > > > >> Maxim aka solomax
> > > >> > > > > > >>
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > > --
> > > >> > > > > > > WBR
> > > >> > > > > > > Maxim aka solomax
> > > >> > > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > > --
> > > >> > > > > > WBR
> > > >> > > > > > Maxim aka solomax
> > > >> > > > > >
> > > >> > > > >
> > > >> > > >
> > > >> > > >
> > > >> > > >
> > > >> > > > --
> > > >> > > > WBR
> > > >> > > > Maxim aka solomax
> > > >> > > >
> > > >> > >
> > > >> >
> > > >> >
> > > >> >
> > > >> > --
> > > >> > WBR
> > > >> > Maxim aka solomax
> > > >> >
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > > WBR
> > > > Maxim aka solomax
> > > >
> > >
> > >
> > >
> > > --
> > > WBR
> > > Maxim aka solomax
> > >
> >
>
>
>
> --
> WBR
> Maxim aka solomax
>
Re: Timezone detection in Wicket
Posted by Maxim Solodovnik <so...@gmail.com>.
Actually I would like to get better TZ guessing.
This [1] thread starts this topic for me
Actual logic used in Wicket is:
1) get TZ offset this year Jan, 1
2) get TZ offset this year Jul, 1
guess according this to offsets
Currently in Russia we have absolutely "un-guessable" situation: we were in
GMT+7 (without DST) and since October we are in GMT+6 (without DST)
AjaxHelloBrowser gave me:
Chrome: GMT+6
FF: GMT+7
Situation described in original thread [1] is somehow similar: the rules
are close, but there is period of time when it doesn't match
I would like to implement ~98% accurate tz guesser to avoid such situations
[1] http://markmail.org/thread/v7vmfburg4zrtizk
On Fri, Dec 5, 2014 at 3:29 PM, Martin Grigorov <mg...@apache.org>
wrote:
> Hi Maxim,
>
> I'm not saying that we should use this JS library.
> I just saw it and decided to share it with you so that you can see whether
> it will help you anyhow.
>
> Also I've noticed that Wicket already has code for detecting the time zone.
> See org.apache.wicket.protocol.http.ClientProperties#getTimeZone
> http://www.wicket-library.com/wicket-examples-6.0.x/ajaxhellobrowser/ for
> me shows:
> Based on your settings, your time is: 1:16:44 AM PST (and your time zone
> is Central European Time)
> The time is not what I'd expect, it should be 10:16:44 AM CET instead.
> The timezone (CET) is correct though.
> But I guess you want to see something like Europe/Moskow ? I.e. the time
> zone identifier. For this you will need the locale too.
>
> P.S. Running wicket-examples locally gives correct results. So it could be
> that wicket-library.com runs with wrong clock ?!
>
>
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
>
> On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <so...@gmail.com>
> wrote:
>
> > I would love to have library for such automatic detection
> > But the list of time zones is limited, and it currently determines my
> > current time zone wrong :(
> > I'll check it's code and will try to enhance mine, I'll try to enhance my
> > code
> >
> > In case you prefer to use this library I would vote for that since
> current
> > wicket code is also not very good :(
> > I believe this library can be used and enhanced.
> >
> > On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <so...@gmail.com>
> > wrote:
> >
> > > Thanks will try to check :)
> > >
> > > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <mgrigorov@apache.org
> >
> > > wrote:
> > >
> > >> Hi Maxim,
> > >>
> > >> Check http://joshowens.me/dealing-with-timezones-in-javascript/. It
> may
> > >> be
> > >> in use for you.
> > >>
> > >> Martin Grigorov
> > >> Wicket Training and Consulting
> > >> https://twitter.com/mtgrigorov
> > >>
> > >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <
> solomax666@gmail.com
> > >
> > >> wrote:
> > >>
> > >> > OK, will try to do it after ApacheConEU
> > >> > Thanks for the review!
> > >> >
> > >> > On 11 November 2014 14:33, Martin Grigorov <mg...@apache.org>
> > >> wrote:
> > >> >
> > >> > > I find the knowledge of the client timezone generally useful!
> > >> > > If you improve the points in my last mail and integrate it
> > >> > > in wicket-browser-info.js then it has better chance of being
> merged
> > >> ;-)
> > >> > >
> > >> > > Martin Grigorov
> > >> > > Wicket Training and Consulting
> > >> > > https://twitter.com/mtgrigorov
> > >> > >
> > >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> > >> solomax666@gmail.com
> > >> > >
> > >> > > wrote:
> > >> > >
> > >> > > > you are right :(
> > >> > > > I can improve it if it worth so
> > >> > > >
> > >> > > > The idea was to get client timezone rulez using JS: the exact
> DST
> > >> > switch
> > >> > > > start/end date/time
> > >> > > > send this data to the server and then find Java timezone with
> best
> > >> > match
> > >> > > >
> > >> > > >
> > >> > > > On 11 November 2014 14:24, Martin Grigorov <
> mgrigorov@apache.org>
> > >> > wrote:
> > >> > > >
> > >> > > > > Hi Maxim,
> > >> > > > >
> > >> > > > >
> > >> > > >
> > >> > >
> > >> >
> > >>
> >
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> > >> > > > > is not very usable in its current state.
> > >> > > > > My issues with it:
> > >> > > > > - no documentation
> > >> > > > > - no tests
> > >> > > > > - uses short named variables and method names (thus hard to
> > >> follow)
> > >> > > > > - ...
> > >> > > > >
> > >> > > > > I have forked it so I can use it as inspiration if I need it
> > >> later.
> > >> > > > > Feel free to remove it.
> > >> > > > >
> > >> > > > > Thanks!
> > >> > > > >
> > >> > > > > Martin Grigorov
> > >> > > > > Wicket Training and Consulting
> > >> > > > > https://twitter.com/mtgrigorov
> > >> > > > >
> > >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> > >> > > solomax666@gmail.com>
> > >> > > > > wrote:
> > >> > > > >
> > >> > > > > > @Martin
> > >> > > > > >
> > >> > > > > > were you able to take a look at this code?
> > >> > > > > > Is it look useful? Or I can remove it?
> > >> > > > > >
> > >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> > >> solomax666@gmail.com
> > >> > >
> > >> > > > > wrote:
> > >> > > > > >
> > >> > > > > > > Finally was able to create prototype:
> > >> > > > > > https://github.com/solomax/tzdetect
> > >> > > > > > > Maybe you can find it (or parts of it) usable
> > >> > > > > > >
> > >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> > >> > solomax666@gmail.com>
> > >> > > > > > wrote:
> > >> > > > > > >
> > >> > > > > > >> I believe if TZ rulez will be detected on client side,
> and
> > TZ
> > >> > > itself
> > >> > > > > on
> > >> > > > > > >> server side it might find user TZ good enough. (due to TZ
> > >> list
> > >> > > with
> > >> > > > > > rulez
> > >> > > > > > >> will be maintained by java vendor, not JS library itself)
> > >> > > > > > >> will try to modify the code and provide quickstart
> > >> > > > > > >>
> > >> > > > > > >>
> > >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> > >> > mgrigorov@apache.org>
> > >> > > > > > wrote:
> > >> > > > > > >>
> > >> > > > > > >>> see https://github.com/moment/moment-timezone/issues/55
> > >> > > > > > >>> if Moment.js cannot do it then I don't think we will do
> it
> > >> > > > > > >>>
> > >> > > > > > >>> Martin Grigorov
> > >> > > > > > >>> Wicket Training and Consulting
> > >> > > > > > >>> https://twitter.com/mtgrigorov
> > >> > > > > > >>>
> > >> > > > > > >>>
> > >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
> > >> > > > > > solomax666@gmail.com>
> > >> > > > > > >>> wrote:
> > >> > > > > > >>>
> > >> > > > > > >>> > there seems to be timezones with more than 1 dst start
> > per
> > >> > year
> > >> > > > :(
> > >> > > > > > >>> > code should be updated to reflect this :(
> > >> > > > > > >>> >
> > >> > > > > > >>> >
> > >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> > >> > > > solomax666@gmail.com>
> > >> > > > > > >>> wrote:
> > >> > > > > > >>> >
> > >> > > > > > >>> > > was tested against multiple Time zones listed here:
> > >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and own
> TZ
> > >> > > > > > >>> (Asia/Novosibirsk)
> > >> > > > > > >>> > >
> > >> > > > > > >>> > >
> > >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> > >> > > > > solomax666@gmail.com>
> > >> > > > > > >>> > wrote:
> > >> > > > > > >>> > >
> > >> > > > > > >>> > >> here is the JS code
> > >> > > > > > >>> > https://gist.github.com/solomax/e86cc77694d67120b8f5
> > >> > > > > > >>> > >> to get DST start date/time (if any)
> > >> > > > > > >>> > >> only minute offset was not tested due to
> impossibili
> > to
> > >> > set
> > >> > > TZ
> > >> > > > > > >>> "Chatham
> > >> > > > > > >>> > >> Island" on my Ubuntu)
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >> similar code can be added to get DST end date/time
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >> the code also might need to be "polished" a little
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> > >> > > > > mgrigorov@apache.org>
> > >> > > > > > >>> > wrote:
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
> > >> > > > > > solomax666@gmail.com>
> > >> > > > > > >>> > >>> wrote:
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > Actually my code can be extended to get
> > >> > > > > > >>> > >>> > 1) if TZ has DST or not
> > >> > > > > > >>> > >>> > 2) what month DST happening
> > >> > > > > > >>> > >>> > 3) the day of month DST happening
> > >> > > > > > >>> > >>> > 4) hour of day DST happening
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > I believe after all this info is available the
> > list
> > >> of
> > >> > > time
> > >> > > > > > zones
> > >> > > > > > >>> > with
> > >> > > > > > >>> > >>> > certain offset can be reduced to better match
> > >> current
> > >> > > user
> > >> > > > > TZ.
> > >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> > >>> This will increase the chance to include it ! ;-)
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
> > >> > > > > > mgrigorov@apache.org
> > >> > > > > > >>> >
> > >> > > > > > >>> > >>> wrote:
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > > Hi Maxim,
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > > Can you please provide more information how
> your
> > >> code
> > >> > > > > solves
> > >> > > > > > >>> the
> > >> > > > > > >>> > >>> problem ?
> > >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> > properly
> > >> > > detects
> > >> > > > > the
> > >> > > > > > >>> > >>> timezone
> > >> > > > > > >>> > >>> > > offset, but since there are many timezone ids
> > for
> > >> a
> > >> > > given
> > >> > > > > > >>> offset it
> > >> > > > > > >>> > >>> is
> > >> > > > > > >>> > >>> not
> > >> > > > > > >>> > >>> > > easy to detect the correct DST from the
> offset.
> > >> > > > > > >>> > >>> > > In your code I don't see anything that should
> > >> provide
> > >> > > the
> > >> > > > > > >>> missing
> > >> > > > > > >>> > >>> timezone
> > >> > > > > > >>> > >>> > > id.
> > >> > > > > > >>> > >>> > > Or I am missing something ?
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > > Martin Grigorov
> > >> > > > > > >>> > >>> > > Wicket Training and Consulting
> > >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> > Solodovnik <
> > >> > > > > > >>> > >>> solomax666@gmail.com>
> > >> > > > > > >>> > >>> > > wrote:
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> > > > Hello All,
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > Some time ago we had user query [1] claiming
> > >> wicket
> > >> > > > based
> > >> > > > > > TZ
> > >> > > > > > >>> > >>> detection is
> > >> > > > > > >>> > >>> > > > not accurate.
> > >> > > > > > >>> > >>> > > > I believe the detection can be enhanced: DST
> > >> rules
> > >> > > can
> > >> > > > be
> > >> > > > > > >>> > detected
> > >> > > > > > >>> > >>> using
> > >> > > > > > >>> > >>> > > JS
> > >> > > > > > >>> > >>> > > > code and taken into account while TZ
> guessing
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > here is the example of JS code determining
> > >> month TZ
> > >> > > > > switch
> > >> > > > > > is
> > >> > > > > > >>> > >>> happening:
> > >> > > > > > >>> > >>> > > > [2] line 50
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > Maybe it worth to implement something like
> > this
> > >> in
> > >> > > > > Wicket?
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > [1]
> > >> http://markmail.org/message/v7vmfburg4zrtizk
> > >> > > > > > >>> > >>> > > > [2]
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> >
> > >> > > > > > >>>
> > >> > > > > >
> > >> > > > >
> > >> > > >
> > >> > >
> > >> >
> > >>
> >
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > > > --
> > >> > > > > > >>> > >>> > > > WBR
> > >> > > > > > >>> > >>> > > > Maxim aka solomax
> > >> > > > > > >>> > >>> > > >
> > >> > > > > > >>> > >>> > >
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> >
> > >> > > > > > >>> > >>> > --
> > >> > > > > > >>> > >>> > WBR
> > >> > > > > > >>> > >>> > Maxim aka solomax
> > >> > > > > > >>> > >>>
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >> --
> > >> > > > > > >>> > >> WBR
> > >> > > > > > >>> > >> Maxim aka solomax
> > >> > > > > > >>> > >>
> > >> > > > > > >>> > >
> > >> > > > > > >>> > >
> > >> > > > > > >>> > >
> > >> > > > > > >>> > > --
> > >> > > > > > >>> > > WBR
> > >> > > > > > >>> > > Maxim aka solomax
> > >> > > > > > >>> > >
> > >> > > > > > >>> >
> > >> > > > > > >>> >
> > >> > > > > > >>> >
> > >> > > > > > >>> > --
> > >> > > > > > >>> > WBR
> > >> > > > > > >>> > Maxim aka solomax
> > >> > > > > > >>> >
> > >> > > > > > >>>
> > >> > > > > > >>
> > >> > > > > > >>
> > >> > > > > > >>
> > >> > > > > > >> --
> > >> > > > > > >> WBR
> > >> > > > > > >> Maxim aka solomax
> > >> > > > > > >>
> > >> > > > > > >
> > >> > > > > > >
> > >> > > > > > >
> > >> > > > > > > --
> > >> > > > > > > WBR
> > >> > > > > > > Maxim aka solomax
> > >> > > > > > >
> > >> > > > > >
> > >> > > > > >
> > >> > > > > >
> > >> > > > > > --
> > >> > > > > > WBR
> > >> > > > > > Maxim aka solomax
> > >> > > > > >
> > >> > > > >
> > >> > > >
> > >> > > >
> > >> > > >
> > >> > > > --
> > >> > > > WBR
> > >> > > > Maxim aka solomax
> > >> > > >
> > >> > >
> > >> >
> > >> >
> > >> >
> > >> > --
> > >> > WBR
> > >> > Maxim aka solomax
> > >> >
> > >>
> > >
> > >
> > >
> > > --
> > > WBR
> > > Maxim aka solomax
> > >
> >
> >
> >
> > --
> > WBR
> > Maxim aka solomax
> >
>
--
WBR
Maxim aka solomax
Re: Timezone detection in Wicket
Posted by Martin Grigorov <mg...@apache.org>.
Hi Maxim,
I'm not saying that we should use this JS library.
I just saw it and decided to share it with you so that you can see whether
it will help you anyhow.
Also I've noticed that Wicket already has code for detecting the time zone.
See org.apache.wicket.protocol.http.ClientProperties#getTimeZone
http://www.wicket-library.com/wicket-examples-6.0.x/ajaxhellobrowser/ for
me shows:
Based on your settings, your time is: 1:16:44 AM PST (and your time zone
is Central European Time)
The time is not what I'd expect, it should be 10:16:44 AM CET instead.
The timezone (CET) is correct though.
But I guess you want to see something like Europe/Moskow ? I.e. the time
zone identifier. For this you will need the locale too.
P.S. Running wicket-examples locally gives correct results. So it could be
that wicket-library.com runs with wrong clock ?!
Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov
On Thu, Dec 4, 2014 at 10:10 PM, Maxim Solodovnik <so...@gmail.com>
wrote:
> I would love to have library for such automatic detection
> But the list of time zones is limited, and it currently determines my
> current time zone wrong :(
> I'll check it's code and will try to enhance mine, I'll try to enhance my
> code
>
> In case you prefer to use this library I would vote for that since current
> wicket code is also not very good :(
> I believe this library can be used and enhanced.
>
> On Sat, Nov 29, 2014 at 1:43 AM, Maxim Solodovnik <so...@gmail.com>
> wrote:
>
> > Thanks will try to check :)
> >
> > On Sat, Nov 29, 2014 at 1:33 AM, Martin Grigorov <mg...@apache.org>
> > wrote:
> >
> >> Hi Maxim,
> >>
> >> Check http://joshowens.me/dealing-with-timezones-in-javascript/. It may
> >> be
> >> in use for you.
> >>
> >> Martin Grigorov
> >> Wicket Training and Consulting
> >> https://twitter.com/mtgrigorov
> >>
> >> On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <solomax666@gmail.com
> >
> >> wrote:
> >>
> >> > OK, will try to do it after ApacheConEU
> >> > Thanks for the review!
> >> >
> >> > On 11 November 2014 14:33, Martin Grigorov <mg...@apache.org>
> >> wrote:
> >> >
> >> > > I find the knowledge of the client timezone generally useful!
> >> > > If you improve the points in my last mail and integrate it
> >> > > in wicket-browser-info.js then it has better chance of being merged
> >> ;-)
> >> > >
> >> > > Martin Grigorov
> >> > > Wicket Training and Consulting
> >> > > https://twitter.com/mtgrigorov
> >> > >
> >> > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <
> >> solomax666@gmail.com
> >> > >
> >> > > wrote:
> >> > >
> >> > > > you are right :(
> >> > > > I can improve it if it worth so
> >> > > >
> >> > > > The idea was to get client timezone rulez using JS: the exact DST
> >> > switch
> >> > > > start/end date/time
> >> > > > send this data to the server and then find Java timezone with best
> >> > match
> >> > > >
> >> > > >
> >> > > > On 11 November 2014 14:24, Martin Grigorov <mg...@apache.org>
> >> > wrote:
> >> > > >
> >> > > > > Hi Maxim,
> >> > > > >
> >> > > > >
> >> > > >
> >> > >
> >> >
> >>
> https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js
> >> > > > > is not very usable in its current state.
> >> > > > > My issues with it:
> >> > > > > - no documentation
> >> > > > > - no tests
> >> > > > > - uses short named variables and method names (thus hard to
> >> follow)
> >> > > > > - ...
> >> > > > >
> >> > > > > I have forked it so I can use it as inspiration if I need it
> >> later.
> >> > > > > Feel free to remove it.
> >> > > > >
> >> > > > > Thanks!
> >> > > > >
> >> > > > > Martin Grigorov
> >> > > > > Wicket Training and Consulting
> >> > > > > https://twitter.com/mtgrigorov
> >> > > > >
> >> > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik <
> >> > > solomax666@gmail.com>
> >> > > > > wrote:
> >> > > > >
> >> > > > > > @Martin
> >> > > > > >
> >> > > > > > were you able to take a look at this code?
> >> > > > > > Is it look useful? Or I can remove it?
> >> > > > > >
> >> > > > > > On 23 September 2014 00:54, Maxim Solodovnik <
> >> solomax666@gmail.com
> >> > >
> >> > > > > wrote:
> >> > > > > >
> >> > > > > > > Finally was able to create prototype:
> >> > > > > > https://github.com/solomax/tzdetect
> >> > > > > > > Maybe you can find it (or parts of it) usable
> >> > > > > > >
> >> > > > > > > On 3 September 2014 12:25, Maxim Solodovnik <
> >> > solomax666@gmail.com>
> >> > > > > > wrote:
> >> > > > > > >
> >> > > > > > >> I believe if TZ rulez will be detected on client side, and
> TZ
> >> > > itself
> >> > > > > on
> >> > > > > > >> server side it might find user TZ good enough. (due to TZ
> >> list
> >> > > with
> >> > > > > > rulez
> >> > > > > > >> will be maintained by java vendor, not JS library itself)
> >> > > > > > >> will try to modify the code and provide quickstart
> >> > > > > > >>
> >> > > > > > >>
> >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov <
> >> > mgrigorov@apache.org>
> >> > > > > > wrote:
> >> > > > > > >>
> >> > > > > > >>> see https://github.com/moment/moment-timezone/issues/55
> >> > > > > > >>> if Moment.js cannot do it then I don't think we will do it
> >> > > > > > >>>
> >> > > > > > >>> Martin Grigorov
> >> > > > > > >>> Wicket Training and Consulting
> >> > > > > > >>> https://twitter.com/mtgrigorov
> >> > > > > > >>>
> >> > > > > > >>>
> >> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik <
> >> > > > > > solomax666@gmail.com>
> >> > > > > > >>> wrote:
> >> > > > > > >>>
> >> > > > > > >>> > there seems to be timezones with more than 1 dst start
> per
> >> > year
> >> > > > :(
> >> > > > > > >>> > code should be updated to reflect this :(
> >> > > > > > >>> >
> >> > > > > > >>> >
> >> > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik <
> >> > > > solomax666@gmail.com>
> >> > > > > > >>> wrote:
> >> > > > > > >>> >
> >> > > > > > >>> > > was tested against multiple Time zones listed here:
> >> > > > > > >>> > > http://www.worldtimezone.com/daylight.html and own TZ
> >> > > > > > >>> (Asia/Novosibirsk)
> >> > > > > > >>> > >
> >> > > > > > >>> > >
> >> > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik <
> >> > > > > solomax666@gmail.com>
> >> > > > > > >>> > wrote:
> >> > > > > > >>> > >
> >> > > > > > >>> > >> here is the JS code
> >> > > > > > >>> > https://gist.github.com/solomax/e86cc77694d67120b8f5
> >> > > > > > >>> > >> to get DST start date/time (if any)
> >> > > > > > >>> > >> only minute offset was not tested due to impossibili
> to
> >> > set
> >> > > TZ
> >> > > > > > >>> "Chatham
> >> > > > > > >>> > >> Island" on my Ubuntu)
> >> > > > > > >>> > >>
> >> > > > > > >>> > >> similar code can be added to get DST end date/time
> >> > > > > > >>> > >>
> >> > > > > > >>> > >> the code also might need to be "polished" a little
> >> > > > > > >>> > >>
> >> > > > > > >>> > >>
> >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov <
> >> > > > > mgrigorov@apache.org>
> >> > > > > > >>> > wrote:
> >> > > > > > >>> > >>
> >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" <
> >> > > > > > solomax666@gmail.com>
> >> > > > > > >>> > >>> wrote:
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > Actually my code can be extended to get
> >> > > > > > >>> > >>> > 1) if TZ has DST or not
> >> > > > > > >>> > >>> > 2) what month DST happening
> >> > > > > > >>> > >>> > 3) the day of month DST happening
> >> > > > > > >>> > >>> > 4) hour of day DST happening
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > I believe after all this info is available the
> list
> >> of
> >> > > time
> >> > > > > > zones
> >> > > > > > >>> > with
> >> > > > > > >>> > >>> > certain offset can be reduced to better match
> >> current
> >> > > user
> >> > > > > TZ.
> >> > > > > > >>> > >>> > I can provide sample JS code for 1-4 above
> >> > > > > > >>> > >>>
> >> > > > > > >>> > >>> This will increase the chance to include it ! ;-)
> >> > > > > > >>> > >>>
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov <
> >> > > > > > mgrigorov@apache.org
> >> > > > > > >>> >
> >> > > > > > >>> > >>> wrote:
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > > Hi Maxim,
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > > Can you please provide more information how your
> >> code
> >> > > > > solves
> >> > > > > > >>> the
> >> > > > > > >>> > >>> problem ?
> >> > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code
> properly
> >> > > detects
> >> > > > > the
> >> > > > > > >>> > >>> timezone
> >> > > > > > >>> > >>> > > offset, but since there are many timezone ids
> for
> >> a
> >> > > given
> >> > > > > > >>> offset it
> >> > > > > > >>> > >>> is
> >> > > > > > >>> > >>> not
> >> > > > > > >>> > >>> > > easy to detect the correct DST from the offset.
> >> > > > > > >>> > >>> > > In your code I don't see anything that should
> >> provide
> >> > > the
> >> > > > > > >>> missing
> >> > > > > > >>> > >>> timezone
> >> > > > > > >>> > >>> > > id.
> >> > > > > > >>> > >>> > > Or I am missing something ?
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > > Martin Grigorov
> >> > > > > > >>> > >>> > > Wicket Training and Consulting
> >> > > > > > >>> > >>> > > https://twitter.com/mtgrigorov
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim
> Solodovnik <
> >> > > > > > >>> > >>> solomax666@gmail.com>
> >> > > > > > >>> > >>> > > wrote:
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> > > > Hello All,
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > Some time ago we had user query [1] claiming
> >> wicket
> >> > > > based
> >> > > > > > TZ
> >> > > > > > >>> > >>> detection is
> >> > > > > > >>> > >>> > > > not accurate.
> >> > > > > > >>> > >>> > > > I believe the detection can be enhanced: DST
> >> rules
> >> > > can
> >> > > > be
> >> > > > > > >>> > detected
> >> > > > > > >>> > >>> using
> >> > > > > > >>> > >>> > > JS
> >> > > > > > >>> > >>> > > > code and taken into account while TZ guessing
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > here is the example of JS code determining
> >> month TZ
> >> > > > > switch
> >> > > > > > is
> >> > > > > > >>> > >>> happening:
> >> > > > > > >>> > >>> > > > [2] line 50
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > Maybe it worth to implement something like
> this
> >> in
> >> > > > > Wicket?
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > [1]
> >> http://markmail.org/message/v7vmfburg4zrtizk
> >> > > > > > >>> > >>> > > > [2]
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>>
> >> > > > > > >>> > >>>
> >> > > > > > >>> >
> >> > > > > > >>>
> >> > > > > >
> >> > > > >
> >> > > >
> >> > >
> >> >
> >>
> https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > > > --
> >> > > > > > >>> > >>> > > > WBR
> >> > > > > > >>> > >>> > > > Maxim aka solomax
> >> > > > > > >>> > >>> > > >
> >> > > > > > >>> > >>> > >
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> >
> >> > > > > > >>> > >>> > --
> >> > > > > > >>> > >>> > WBR
> >> > > > > > >>> > >>> > Maxim aka solomax
> >> > > > > > >>> > >>>
> >> > > > > > >>> > >>
> >> > > > > > >>> > >>
> >> > > > > > >>> > >>
> >> > > > > > >>> > >> --
> >> > > > > > >>> > >> WBR
> >> > > > > > >>> > >> Maxim aka solomax
> >> > > > > > >>> > >>
> >> > > > > > >>> > >
> >> > > > > > >>> > >
> >> > > > > > >>> > >
> >> > > > > > >>> > > --
> >> > > > > > >>> > > WBR
> >> > > > > > >>> > > Maxim aka solomax
> >> > > > > > >>> > >
> >> > > > > > >>> >
> >> > > > > > >>> >
> >> > > > > > >>> >
> >> > > > > > >>> > --
> >> > > > > > >>> > WBR
> >> > > > > > >>> > Maxim aka solomax
> >> > > > > > >>> >
> >> > > > > > >>>
> >> > > > > > >>
> >> > > > > > >>
> >> > > > > > >>
> >> > > > > > >> --
> >> > > > > > >> WBR
> >> > > > > > >> Maxim aka solomax
> >> > > > > > >>
> >> > > > > > >
> >> > > > > > >
> >> > > > > > >
> >> > > > > > > --
> >> > > > > > > WBR
> >> > > > > > > Maxim aka solomax
> >> > > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > > --
> >> > > > > > WBR
> >> > > > > > Maxim aka solomax
> >> > > > > >
> >> > > > >
> >> > > >
> >> > > >
> >> > > >
> >> > > > --
> >> > > > WBR
> >> > > > Maxim aka solomax
> >> > > >
> >> > >
> >> >
> >> >
> >> >
> >> > --
> >> > WBR
> >> > Maxim aka solomax
> >> >
> >>
> >
> >
> >
> > --
> > WBR
> > Maxim aka solomax
> >
>
>
>
> --
> WBR
> Maxim aka solomax
>