Folks -
Last fall we made the decision to refactor the graphics kernel,
rewrite our serialization scheme, and make things better for end-users
as well. In the process, we took our communications pretty much
off line so, to look at the mail list, one might assume we just
stopped working. Nothing could be farther from the truth, as you
will see from this summary of features in the upcoming release of
Lively Kernel 2.0...
New Rendering Architecture
We have refactored the rendering architecture so that it can
equally easily support not only SVG and Canvas, but also standard HTML
and CSS. There were several reasons: improved graphic
performance, easier incorporation of existing web content, and the
flexibility to interoperate with other widget sets, visualization
software and the like. By separating the rendering state from
the morphic state, it also allowed us to serialize objects in a
rendering-independent manner. The importance of this will emerge
when we talk about Parts Bins. Here is an examples enabled by
the new architecture
Native Widgets
One advantage of the new system is access to native widgets in
the browser, most notably text frames that can edit multi-megabyte
string. We also look forward to such native support in mobile
devices where there are high expectations of both appearance and
performance.
New Serialization
We have rewritten the entire serialization module in LK2 removing
its dependence on the browser DOM. Serialization now uses JSON
exclusively, and it now handles all morphic structure, including
non-rooted morphs and arbitrary JavaScript objects.
Parts Bins
We have made a step in ease-of-use for many simple creations.
Beginning with the Lively Fabrik project, we had gained experience
with a simple drag-and-drop palette of components. It became
obvious that this is a generally more convenient and more concrete
access to a lively library than menu commands, plus it offers the
potential of storing as well, and is thus a true user repository.
Around the same time, we were experimenting with Node.JS, and this,
together with a general desire to slim down our kernel, suggested that
our parts bin should be cloud-resident (and thus sharable),
replicable, and generally scalable as well.
We soon discovered that storing objects in this manner was more
convenient than saving code and files. Originally used only for
simple shapes, we now store all sorts of active content from widgets
to full-blown applications, styles such as fancy borders, behaviors
such as throbbing, spinning, etc, and services such as map views and
language translation.
Iconic Connect
In addition to drag-and-drop access from the parts bins, it is
necessary to be able to connect objects together in a live way.
For this we have developed a dataflow connection similar to the bind
operation found in many GUI frameworks. Connections can be made
simply by drawing out a line from one component to another and
selecting from a menu which property of the source should be connected
to which property of the target.
Script Browser
With the move to a less class-oriented style of development, we
have developed a simplified browser that also offers control scripts
and connect functions. The script browser itself is built in
this manner, and is something much more accessible to casual
understanding than our more heavyweight programming tools.
Live Web
The change to direct scripting of objects and iconic storage in
the cloud is a true paradigm shift for the Lively Kernel. The
experience is one of living in a vast and shared cloud of active
content that is easy to grab and play with, and equally easy to
publish back to.
Lively Archives
A wonderful side-effect of the new serialization is the ability
to create a full-system archive of any Lively Kernel world. A
lively archive is a web page that includes the entire code base, and
that can thus be run without access to the Internet. It can be
stored as a clickable app on one's desktop and, being self-contained,
it should remain a stable artifact for years to come.
Personal Lively
Using the lively archive technology it is now possible to store
Lively Kernel worlds to your Dropbox account, thus letting you keep
them and share them as long as you want. We plan to extend this
facility to parts bins as well, so that you can build and share your
own personal gallery of weird and wonderful lively content.
The punch list for Lively Kernel 2.0
We are now operating at maximum warp to assemble a stable release
so that people can play with it and we can take this environment to
the next level of creative productivity. We are intentionally
refraining from perfection in favor of early release, knowing that we
will want to change it the minute we are done.
Here are the major stepping stones remaining to get us to
2.0:
Stability
In addition to our normal practice of making the up-to-the-minute
alphas accessible, with 2.0 we plan to begin a practice of providing
links to a reasonably documented stable release as well as the
up-to-the-minute development version.
Check out the alpha pages
To get a sneak peak at Lively 2.0 visit
A FAQ has been started at
Please note:
You can help to make the 2.0 release a success by testing these
pages, and any other features you discover. Please send us your
comments and suggestions.
Also note:
At this writing, LK2 runs best on recent releases of Safari,
Webkit and Chrome. It is our intention also to support IE (9+),
Firefox and Opera. Help us to test these and send us your
comments.
Lively up your web!
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I do not have an idea how to overcome the problem. Regards B. Blochl Am 11.07.2011 21:44, schrieb Dan Ingalls:
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In reply to this post by Dan Ingalls-4
With
http://lively-kernel.org/repository/webwerkstatt/demos/visualizations/FPSProtovis.xhtml
I get an error with Firefox 3.6.18. The relevant lines following
http://lively-kernel.org/repository/webwerkstatt/apps/ProtoVisInterface.js loaded in 73 ms are: trying to reclaimRemovedChunks of a text chunk with no prev chunk trying to reclaimRemovedChunks of a text chunk with no prev chunk trying to reclaimRemovedChunks of a text chunk with no prev chunk trying to reclaimRemovedChunks of a text chunk with no prev chunk Error while loading undefined: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIDOMSVGLocatable.getBBox]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: http://lively-kernel.org/repository/webwerkstatt/generated/combinedModules.js?9101515766470f7151d6167064f5309f :: anonymous :: line 18391" data: no] dependencies: Global.anonymous_module_5 Am 11.07.2011 21:44, schrieb Dan Ingalls:
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Thanks, I will look into it.
Best, Robert On Jul 14, 2011, at 1:53 PM, bb wrote:
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In reply to this post by Dan Ingalls-4
This is great!
Is there a revamped installation document as well? The installation doc at http://lively-kernel.org/repository/webwerkstatt/documentation/LivelyInstallation.xhtml
doesn't seam to "kick off" on my browser (engine keeps spinning). I remember when I first did the local installation that was a bit of a pain point... Cheers,
Davide
On Mon, Jul 11, 2011 at 8:44 PM, Dan Ingalls <[hidden email]> wrote:
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On 7/19/11 7:44 AM, Davide Della Casa wrote:
> This is great! > > Is there a revamped installation document as well? > > The installation doc at > http://lively-kernel.org/repository/webwerkstatt/documentation/LivelyInstallation.xhtml > doesn't seam to "kick off" on my browser (engine keeps spinning). > On Mac OS X Snow Leopard, Safari 5.1 and FIreFox 5.0.1 show errors. Chrome just keeps spinning the engine. What can peons like myself do to help make this thing acceptable to more people? I have a jillion possible uses cases for it, from Seaside-served pages using Morphic widgits as the templates, to google map widgets to game widgets but until I can use it myself, reliably, it is hard to imagine convincing anyone else to try it, letalone use it.... L. _______________________________________________ lively-kernel mailing list [hidden email] http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel |
Note: none of the pages found at:
http://lively-kernel.org/repository/webwerkstatt/ work with the plain vanilla WebKit lib found in the latest Second Life client. L. On 7/31/11 4:53 PM, Lawson English wrote: > On 7/19/11 7:44 AM, Davide Della Casa wrote: >> This is great! >> >> Is there a revamped installation document as well? >> >> The installation doc at >> http://lively-kernel.org/repository/webwerkstatt/documentation/LivelyInstallation.xhtml >> doesn't seam to "kick off" on my browser (engine keeps spinning). >> > On Mac OS X Snow Leopard, Safari 5.1 and FIreFox 5.0.1 show errors. > Chrome just keeps spinning the engine. > > What can peons like myself do to help make this thing acceptable to more > people? I have a jillion possible uses cases for it, from Seaside-served > pages using Morphic widgits as the templates, to google map widgets to > game widgets but until I can use it myself, reliably, it is hard to > imagine convincing anyone else to try it, letalone use it.... > > > > L. > _______________________________________________ > lively-kernel mailing list > [hidden email] > http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel > _______________________________________________ lively-kernel mailing list [hidden email] http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel |
In reply to this post by LawsonEnglish
Hi,
we just wrote something that might be the beginning of an installation guide: http://www.lively-kernel.org/repository/webwerkstatt/documentation/Lively2Installation.xhtml Please feel free to ask and comment. We know that it's not terribly detailed but we're working on that. It might give you a rough idea. Any questions or comments might also be helpful for our installer project. Regards, Fabian On 8/1/11 1:53 AM, Lawson English wrote: > On 7/19/11 7:44 AM, Davide Della Casa wrote: >> This is great! >> >> Is there a revamped installation document as well? >> >> The installation doc at >> http://lively-kernel.org/repository/webwerkstatt/documentation/LivelyInstallation.xhtml >> doesn't seam to "kick off" on my browser (engine keeps spinning). >> > On Mac OS X Snow Leopard, Safari 5.1 and FIreFox 5.0.1 show errors. > Chrome just keeps spinning the engine. > > What can peons like myself do to help make this thing acceptable to more > people? I have a jillion possible uses cases for it, from Seaside-served > pages using Morphic widgits as the templates, to google map widgets to > game widgets but until I can use it myself, reliably, it is hard to > imagine convincing anyone else to try it, letalone use it.... > > > > L. > _______________________________________________ > lively-kernel mailing list > [hidden email] > http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel _______________________________________________ lively-kernel mailing list [hidden email] http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel |
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