[jbpm-dev] Fwd: Re: [jbpm-users] local history for the jbpm web editor

Thu Oct 25 16:03:41 EDT 2012

On 10/25/12 3:20 PM, Gábor Farkas wrote:
> Hi,
> Thanks for the ping, yes, I'd still like to contribute, it's just that 
> the company had some other priorities these weeks, but i'll find some 
> time to clean things up a bit.
> There are some questions still:
>
>   * /accessing/: I didn't yet scan the source to check how to put an
>     icon in the toolbar to display the local history panel. I guess
>     the best approach will be to make this localhistory thing a
>     plugin, so I can start by taking the servicerepo plugin as an
>     example. For the prototype, I modified the editor.html and added a
>     transparent div, and the panel shows up by clicking on that.
>
Adding a new plugin that registers an icon in the toolbar is very easy. 
I can help you with that.

>   * /when to create an entry/: currently I check the json source of
>     the model every 10 seconds, and if it's changed, I create an
>     entry. Maybe this should be extended by somehow grouping these
>     entries. For example, if the user keeps editing actively for two
>     minutes, I keep only one entry, updating that entry every 10
>     seconds. But if the editing period is longer than two minutes for
>     example, I keep one entry for each two minutes block. If the user
>     edits for 30 seconds, then waits two minutes, then edits again,
>     two entries will be created again. Something like this might be
>     useful to keep the history reasonably small, but still quite
>     useful and real-time.
>
We could make this configurable, yes.

>   * /when entries expire/: entries don't yet expire, so the local
>     storage can get full after some time. You can delete all entries
>     at once. I think we should add the possibility to delete entries
>     individually, and to configure that after a specific time, entries
>     are autmatically deleted. Or maybe, for entries older than one
>     hour, we keep entries only in 5 minutes granularity, after two
>     hours, every 1 hours, and one entry for each day older than 24
>     hours. Or maybe this is unnecessary for our scope ...
>
Configuration probably best again with some reasonable default settings.
>
> What do you think the best way would be to share the prototype with 
> you? Well, maybe just emailing the files will be enough for now.
That would be fine. Maybe you have a diff with just changes too?
> I'll try to clean up the source tonight and send you an initial 
> version, so that you can take a look and try.
Thanks! Looking forward to it :)
>
> Thanks
> Gabor
>
> On Thu, Oct 25, 2012 at 3:01 PM, Tihomir Surdilovic 
> <tsurdilo at redhat.com <mailto:tsurdilo at redhat.com>> wrote:
>
>     Hi Gabor, are you still wanting to contribute your work? Just
>     checking in case you are waiting on anything from me in order to
>     start.
>
>     Thanks.
>
>     On 10/3/12 11:32 AM, Tihomir Surdilovic wrote:
>>     Forwarding to jbpm-dev list as users list is not being monitored.
>>
>>
>>     -------- Original Message --------
>>     Subject: 	Re: [jbpm-users] local history for the jbpm web editor
>>     Date: 	Wed, 03 Oct 2012 11:23:34 -0400
>>     From: 	Tihomir Surdilovic <tsurdilo at redhat.com>
>>     <mailto:tsurdilo at redhat.com>
>>     To: 	Gábor Farkas <gabor.farkas at doctusoft.com>
>>     <mailto:gabor.farkas at doctusoft.com>
>>     CC: 	jbpm-users at lists.jboss.org <mailto:jbpm-users at lists.jboss.org>
>>
>>
>>
>>     Hi Gabor - that looks impressive and useful for the community.
>>     I'd be happy to work with you to incorporate this functionality
>>     into the Designer codebase and promote you as community
>>     contributor for jBPM. Let's chat on IRC (#jbpm or #jbpmdev on
>>     irc.freenode.net <http://irc.freenode.net>).
>>
>>     Tihomir
>>
>>     On 10/3/12 10:42 AM, Gábor Farkas wrote:
>>>     Hello,
>>>     We've created a prototype for a local history functionality for
>>>     the jbpm-designer, we needed it for multiple reasons. It stores
>>>     data in the browser localStorage, so it also serves a bit like
>>>     'undo after save'. It checks the json representation of the
>>>     process every minute and if it differs, it creates a new local
>>>     history entry, including a thumbnailed screenshot. It's
>>>     available after browser restart too, so if you accidentally
>>>     close the browser, you can still restore your work.
>>>     Here's a small screenshot.
>>>     https://docs.google.com/open?id=0Bxw7L2kmpno8RkJUY3Zjd0I4Mlk
>>>
>>>     Needs quite much elaboration, but it's already functional and
>>>     useful for our needs.
>>>     If you find it interesting, we'd be happy to share it with the
>>>     community.
>>>
>>>     regards,
>>>     Gabor Farkas
>>>
>>>
>>>     _______________________________________________
>>>     jbpm-users mailing list
>>>     jbpm-users at lists.jboss.org  <mailto:jbpm-users at lists.jboss.org>
>>>     https://lists.jboss.org/mailman/listinfo/jbpm-users
>>
>>
>>
>>
>
>

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