Browser based Canvas UI?

CTO debatem1 at
Sat May 30 10:52:30 CEST 2009

On May 30, 4:12 am, Ken Seehart <k... at> wrote:
> A couple years ago I stumbled upon an interesting technology but I can't
> seem to find it, and I can remember what it is called.  Unfortunately
> this makes it difficult to search for.  I am am aware of several partial
> matches (items that meet a subset of the requirement listed below).  
> Does anyone know what does /all/ of the following?
> 1. Works on at least FF and IE on XP and Linux out of the box, probably
> others
> 2. Does not require /any/ plugin download at all of any kind to view
> (this disqualifies flash, svg, silverlight, java, and others)
> 3. If you go to the web page for the first time on a freshly installed
> operating system, without admin privileges, you will see the
> functionality listed below immediately, and with no downloaded plugins
> and installers.  (I apologize for the redundancy, but I want to
> preemptively avoid a flood of non-applicable responses).
> 4. Graphics, including sprite animation
> 5. Dynamic response to mouse motion: dragging sprites for example
> 6. Programmable in Python, of course
> Hints from what I can recall:
> - Built from javascript as it's raw material under the hood (after all,
> it can't very well be anything else given requirements 1,2,3)
> - Seems quite magical since I didn't know the necessary graphical raw
> materials existed in javascript
> - I think it's based on Ajax, but I can't seem to find a relevant python
> demo of it due to too much clutter in my google searches
> Ken

Probably thinking of Pyjamas- <URL:>.
It lets you interact with canvas- <URL:>-
without writing any javascript.

Geremy Condra

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