Flapjax Google Group

compiler install failure

pivi...@gmail.com (ivan) — Tue, 15 Dec 2009 10:23:56 UT

Hi,

I'm trying to install the compiler, so I downloaded the source, cd compiler,
cabal install, but am stuck with:

Configuring Flapjax-2.0.1...
Preprocessing executables for Flapjax-2.0.1...
Building Flapjax-2.0.1...

src/Flapjax/Compiler.hs:22:17:
Could not find module `BrownPLT.Html.Syntax':

Strawman of DSL support for JS

mikesam...@gmail.com (Mike Samuel) — Mon, 14 Dec 2009 22:50:27 UT

There's a strawman proposal for DSL support in EcmaScript at
[link]

I'd love to get thoughts from Flapjaxers since I'm sure many of you
have thought a lot about DSLs in Javascript and how to generate and

switchB?

fja...@gmail.com (Fred Janon) — Fri, 13 Nov 2009 09:08:28 UT

I don't understand what switchB does:

---------------------------
switchB [top] <[link]>

switchB(sourceBB) -> Behavior a

sourceBB :: Behavior (Behavior a)

*When the value of a time varying value is time varying itself, which is
common when dealing DOM objects.*

Demos not showing on website

ravik...@gmail.com (ravi mittal) — Wed, 04 Nov 2009 10:51:28 UT

Hi,
The demos aren't showing on your website, would you be able to check out
whats wrong?
Cheers
Ravi

Can the library be smaller?

fja...@gmail.com (Fred Janon) — Wed, 04 Nov 2009 04:40:53 UT

Hi,
I know we can minimize the library, but I saw some mention that part of the
library is for the compiler. Would it be possible to remove that part?
Thanks
Fred

Flapjax REPL

arjun.g...@gmail.com (Arjun Guha) — Mon, 02 Nov 2009 18:12:26 UT

Last week at OOPSLA, we live-coded a timer in Flapjax, using a custom
REPL. I've added this REPL to the demos on the Flapjax website:

[link]

See the popup in the bottom-right corner for the timer's code. Other
than the built-in timer UI and the showTime function, it is a generic

Tutorial question: mouse1.html

fja...@gmail.com (Fred Janon) — Mon, 02 Nov 2009 12:18:59 UT

I am trying [link] . I was wondering
what needs to be added to the code to make the "themouse" DIV initial
position under the current mouse position. In the example, one has to move
the mouse for the div to be under the cursor. I tried a few things with no
success.

Tutorial broken link

fja...@gmail.com (Fred Janon) — Sat, 31 Oct 2009 07:56:05 UT

Hi,
Page doesn't exist:
[link]
in
moving the box to follow the mouse. See the mouse
move<[link]>
.
Fred

How to use Flapjax without the compiler?

fja...@gmail.com (Fred Janon) — Fri, 30 Oct 2009 11:02:56 UT

Hi,

The examples use the compiler, I guess. The paper refers to using the
library without the compiler. so what do I need to use to an HTML page
to use the library only and not anything that deals with the compiler?
I am guessing just include the js library in the HTML head? Do I still
need to use "text/flapjax" around my code or just "text/javascript"

abod0505@googlegroups.com‬

ww5...@gmail.com (عبوود) — Sun, 25 Oct 2009 15:34:56 UT

abod0505@googlegroups.com‬

Order of Evaluation

jfreema...@gmail.com (jfreeman) — Mon, 12 Oct 2009 01:19:23 UT

Howdy,

First, I want to say thank you for this great library. Bringing FRP
to JavaScript was a great idea, and you executed it swimmingly.

Second, I have read your 2009 OOPSLA paper, and have been developing a
web application using Flapjax for the past couple of weeks. I have
some questions surrounding guarantees on the order of evaluation. In

Starting with FlapJax

apdma...@gmail.com (André Matos) — Fri, 18 Sep 2009 12:39:55 UT

Hi everyone,

I am starting with flapjax, and for a first contact I am using the paper in
your web site. That has some interesting concepts, but I think for the first
time it is very hard to understand.

I have tried the first example on the paper:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html;

Orc vs flapjax

tittoass...@gmail.com (titto) — Thu, 17 Sep 2009 21:04:30 UT

Hi,

I have recently discovered Orc ([link]), it seems
to be rather similar to flapjax in spirit.

From a quick reading of the tutorial it seems to be based on just
three coordination primitives (roughly speaking an OR, and AND and an
ONCE).

I didn't see Orc mentioned in the OOPSLA paper so I wondered if the

Joyent Smart Platform

bradjone...@gmail.com (Brad) — Thu, 17 Sep 2009 17:58:40 UT

From a bird's eye perspective can anyone comment on the possible
synergy (or lack thereof) between Flapjax and the Joyent Smart
Platform: [link]

simple spreadsheet demo

tittoass...@gmail.com (Pasqualino Assini) — Thu, 10 Sep 2009 16:27:43 UT

Hi,
to learn a bit more about flapjax, I have written a little "spreadsheet" demo.
You can find it at: [link]
However, it doesn't always work, sometimes a dependent cell is not
updated when the cells it depends upon are modified.
Also I am not sure that I used the right method to connect/disconnect

real-world apps in flapjax: browser compatibility and namespace pollution

tittoass...@gmail.com (titto) — Mon, 07 Sep 2009 14:38:47 UT

Hi,

reading the docs I see that flapjax has been used to build a few real-
world apps.

I would like to also use flapjax in production but I need to
understand how compatible flapjax really is with the major browsers.

Has any systematic tests been done? Is there a compatibility matrix
somewhere? I could not find it.

isDetached

tittoass...@gmail.com (titto) — Mon, 07 Sep 2009 14:22:16 UT

Hi,

in the oopsla paper there is a reference to the existence of an
isDetached method for streams but I cannot see in the git code.

Also, is the isDetached property the correct approach to allow for
release of stream resources?

If we have a streams that get detached and then no more events are

flapjax on hackage

tittoass...@gmail.com (titto) — Wed, 02 Sep 2009 15:00:38 UT

Hi,

I wondered why the flapjax compiler and related haskell packages
(WebBits, etc.) were not on hackage.

It's a pity, that would spread the word about flapjax in the rather
large Haskell community and make it much more likely to get other
people involved in the development.

Regards,

titto

Querying DOM object properties (or "Sticky footer with Flapjax")

artyom.shalkha...@gmail.com (Artyom Shalkhakov) — Sat, 29 Aug 2009 11:42:37 UT

Hello,
Is it possible to get DOM object properites like top/left/width/height?
Something along the lines of extractValueB, but for styling properties
for example?
Here's an example where it would ease development. Say we have a
webpage, comprised of a heading, a variable-height body and a footer.
We would like to stick footer to either

flapjax.js file size

th3ra...@googlemail.com (therac25) — Wed, 26 Aug 2009 10:10:02 UT

Hello

flapjax.js seems to contains compiler related code.
I wonder, can this be removed by someone that only uses Flapjax as a
library in order to reduce the download size (around 55KB at the
moment) ?
If so, what lines exactly could be left out ?

Thanks

t25

Bug in extractValueB and manually setting values

danny....@gmail.com (Danny Yoo) — Tue, 18 Aug 2009 17:40:05 UT

The following program shows that when I press the clear button, the
value behavior doesn't follow along. I'm not quite sure how to fix
this yet. Suggestions?

<html>
<head>
<title>Flapjax Demo: Where is the Mouse?</title>
<link rel="stylesheet" href="/demo.css"/>

Expression problem

artyom.shalkha...@gmail.com (Artyom Shalkhakov) — Tue, 11 Aug 2009 10:30:04 UT

Hello,
I'm trying to create a resizeable box with Flapjax. Four draggable boxes
are created, one for each edge -- top, left, right, bottom (we'll call them
"handles"). The handles define dimensions of the box.
The problem is this: every handle depends on the dimensions of the box
being resized, which, in turn, depend on the positions of other handles.

carousel with Flapjax

th3ra...@googlemail.com (therac25) — Mon, 13 Jul 2009 17:32:13 UT

Hi list,

Carrying on with my idea to discover Flapjax through useful 'real-
world' widgets, I've put together a carousel example:

[link]

Any comment welcome

T25

(should work at least in FF3)

Tabs with Flapjax

th3ra...@googlemail.com (therac25) — Mon, 06 Jul 2009 11:36:25 UT

Hello Flapjax team and thanks for your work !

I find myself constantly re-implementing tabs widgets at work, so I
made a generic one with jQuery. Then I thought I'd try with Flapjax
(something similar to [link]).

At first I didn't know how to get started, until I realized that the

Generalized tagRec?

artyom.shalkha...@gmail.com (Artyom Shalkhakov) — Thu, 04 Jun 2009 11:05:16 UT

Hello,
I was writing a small file browser in Flapjax and have encountered
a problem with tagRec: there seems to be no way to make one
dynamically created tag to depend on another dynamically created
tag's events.
What I would like to achieve is a tree with branches that
can be shown or hidden.
The tree (or rather, a forest) for testing is the parse tree of an expression

Using flapjax with window.onload

jcra...@gmail.com (jcrazer@gmail.com) — Sat, 30 May 2009 21:53:45 UT

Hi
I tried the demos in website with "window.onload" method , however i
couldnt run them.
Should we always declare flapjax scripts as attributes of html tags? I
mean, should we always use onload="start();" etc , or is it possible
to use window.onload=start; ?
I couldnt manage the second way

Nifty Piano Demo

brosm...@gmail.com (Dan Bjorge) — Mon, 18 May 2009 19:30:48 UT

I just threw together a small flapjax demo on a whim - it
demonstrates, among some basic event/behavior examplings, that flapjax
works fine with other libraries (in this case, SoundManager2). It is
hosted at [link]

While I was making it, I came across a problem that I was hoping

Question about timerE (event streams in flapjax)

chen...@gmail.com (pointer) — Mon, 18 May 2009 16:29:04 UT

Hi there,

I know timerE returns an event stream that fires an event at specific
intervals. But I am a bit lost in how to make my desired function to
work. for example, I want to build a sample that reduces from 100 to
0:

// i have a timer now that triggers event every second
var timer = timerE(1000);

ocamljs + froc

jake.don...@gmail.com (Jake Donham) — Wed, 13 May 2009 16:57:08 UT

Hi list,
I thought you might be interested in a couple of projects I have been
working on: ocamljs, an OCaml to Javascript compiler, and froc, a
library for functional reactive programming in OCaml:
[link]
[link]
Here are some blog posts working through an example:

Failed to run the flapjax compiler on my machine

wei....@gmail.com (Wei Hu) — Tue, 12 May 2009 07:28:46 UT

I tried to run fxc on the Catch Up demo, and got this error:

fxc: src/Flapjax/HtmlEmbedding.hs:2 5:9-22: No instance nor default
method for class operation BrownPLT.Html.Syntax.prettyPri ntScript

What's going wrong here? Thanks.

A newbie question about curly-bang and compiler

chen...@gmail.com (pointer) — Fri, 08 May 2009 13:52:23 UT

Hi i'm newcomer to flapjax. it's very interesting for me, but i
encounter a problem when getting my hands into it.

i have been following flapjax tutorial page and tried to make a sample
page with some curly-bang syntax like {! timerB(100) !}. but it doesnt
work in my browsers even though there's <script type="text/javascript"

Flan: Animations in Flapjax

noelwe...@gmail.com (noelwelsh@gmail.com) — Fri, 17 Apr 2009 15:38:17 UT

I've just uploaded my (very small, very incomplete) animation library
Flan:

[link]

Happy hacking.
N.

Flapjax "demos" page doesn't load

joshpurin...@gmail.com (Josh Purinton) — Wed, 15 Apr 2009 19:04:11 UT

The page [link] says "Flapjax Demos
Loading...", but that text never goes away. No demos appear, even
after several minutes. I tried with Firefox 3, IE 7, Opera 9, and
Chrome.

hacking Flapjax

ar...@cs.brown.edu (Arjun Guha) — Tue, 14 Apr 2009 14:59:00 UT

Flapjax is open source software. I'd like to give you a quick
introduction to the Flapjax source:
[link]
We use git for version control. If you don't want to use git, you can
click the Download button across the top to get a tarball/zip with the
current sources.
To build the Flapjax library and compiler, you will need to use our

a tech report about Flapjax

s...@cs.brown.edu (Shriram Krishnamurthi) — Tue, 14 Apr 2009 06:24:45 UT

It's finally happened -- we've attempted to present Flapjax in a more
scholarly fashion! For those wondering about this, doing so was an
explicit un-goal, because papers take months to write, and that would
be time not spent writing code. But as Flapjax turns 2.5 years, we
feel the system is mature enough to warrant a first write-up. The

A question about insertValueB/insertValueE type signature

artyom.shalkha...@gmail.com (artyom.shalkhakov) — Fri, 10 Apr 2009 04:25:04 UT

Hello,

insertValueB has "type" of Behavior a * (Dom . Array id) -> void

Is it intensional that insertValueB/insertValueE return "void"? In
FRAN, for example, functions are of type

(auxilliary parameters here) * Element -> Element

which allows nesting and is very convenient in my opionion.

Can't insertValueB class attribute.

watt.poosanguan...@gmail.com (Watt) — Thu, 09 Apr 2009 17:39:42 UT

Hi,

I am using Flapjax 2.0. I am having difficulty in trying to insert
value into class attribute of an input element

insertValueB(ifB(readyForSubmi ssionB, 'enabled', 'disabled'),
'input1', 'class');

There must be something that I am missing here because when I change
the class attribute to value, things seem to work fine. I see enabled

Missing foldR (and a patch)

artyom.shalkha...@gmail.com (artyom.shalkhakov) — Wed, 08 Apr 2009 08:57:37 UT

Hello,

Strangely enough, but foldR is missing (seems like it's just been
forgotten about).

Here's a fix:

3731a3732,3739
3989a3998

(I suppose it's okay.)

Cheers,
Artyom Shalkhakov.

removeListener gone?

komi...@gmail.com (Jay Kominek) — Tue, 07 Apr 2009 16:29:56 UT

It looks like removeListener is gone in 2.0. Is there some replacement
for it that I just haven't been able to spot?

My application regularly creates event streams which it doesn't need
(and would like the GC to eat) after awhile. But when they listen to
another, more permanent event stream, it holds a reference, and

Bug (and fix) in constantE

noelwe...@gmail.com (Noel Welsh) — Wed, 01 Apr 2009 15:49:05 UT

var constantE = function(e) { return e.constantE(); };
should be
var constantE = function(e, v) { return e.constantE(v); };
N.

Bug in documentation

noelwe...@gmail.com (Noel Welsh) — Wed, 01 Apr 2009 15:36:24 UT

The documentation for constantE has the following example:
The following code displays an alert box whenever the button is clicked:
var clicks = extractValueE('form-button','c lick');
clicks.constantE(function() { alert('Do not press this button.'); });
This doesn't work -- it needs a mapE after the constantE -- and it

Re: flapjax - 1 new message in 1 topic - digest

noelwe...@gmail.com (Noel Welsh) — Tue, 31 Mar 2009 09:19:04 UT

This is great news -- I thought Flapjax had basically died. Out of
interest, why is there no public code repository for Flapjax?
N.

Flapjax 2.0

arjun.g...@gmail.com (Arjun Guha) — Mon, 30 Mar 2009 12:50:15 UT

We are pleased to announce a new release of Flapjax. Flapjax features
a faster and more space-efficient implementation and a revised API.
In addition, we have a new Flapjax compiler that better supports
transparent-reactivity--contra ry to earlier threats to abandon the
compiler.

For this release, we have overhauled the Flapjax website:

OMeta as translation layer

rossjud...@gmail.com (rossjudson) — Wed, 27 Aug 2008 16:06:16 UT

I wonder if OMeta/JS might be appropriate as a translator from flapjax
syntax to pure javascript. While not optimal in terms of performance,
it would allow interactive development within the browser, and then
the translated output could be captured cached for repeat use.

OMeta already has a reasonably complete Javascript compiler and

Flapjax in Brazil/Brasil

s...@cs.brown.edu (Shriram Krishnamurthi) — Fri, 01 Aug 2008 23:25:13 UT

Flapjax will be the focus of my invited keynote talk at this year's
SBLP, the annual Brazilian programming languages symposium. The event
is in Fortaleza, August 27-29, and I'll speaking on the afternoon of
the 28th. I will also be speaking at the Universidade de Pernambuco
in Recife on August 25 (Monday). If any of you are at either place,

XMPP and events

s...@cs.brown.edu (Shriram Krishnamurthi) — Fri, 01 Aug 2008 23:23:25 UT

An excerpt from this article:
[link]
The excerpted prose:
Evan "Rabble" Henshaw-Plath (independent) and Kellan Elliott-McCrea
(Flickr) have essentially hijacked XMPP in order to solve the polling
problem many services run into with REST. The idea of having a
protocol for "event streams" makes a lot of sense for our site, since

Animation using Flapjax (problems)

artyom.shalkha...@gmail.com (artyom.shalkhakov) — Tue, 01 Jul 2008 13:34:25 UT

Hello,

I was trying to do animation using Flapjax, and found I couldn't model
a specific behaviour. The idea is to have an element that reacts to an
'activation event', which triggers the animation cycle (starting a
timer changing it's value every 50ms or so, for duration of, say,
1500ms).

New Flapjax release coming; plans to drop compiler

s...@cs.brown.edu (Shriram Krishnamurthi) — Tue, 10 Jun 2008 00:59:39 UT

In early July, we intend to release a new version of the Flapjax
library. This release will be backward-compatible with the current
release. We will fix bugs, improve performance, and provide better
documentation.
The principal change is that we wish to no longer support the Flapjax
compiler. More on that below.

domObj.getAttribute() is not a function (flapjax.js, line 3303)

artyom.shalkha...@gmail.com (artyom.shalkhakov) — Sat, 07 Jun 2008 18:23:15 UT

Hello,

I've downloaded the latest release of Flapjax for Linux
(flapjax-20070514), and encountered the error mentioned above when
trying to open hello.html in FireFox3 beta 5.

The strange thing is that online demos work fine.

What might be the reason? (I guess it's related to FireFox3, because

status update

s...@cs.brown.edu (Shriram Krishnamurthi) — Fri, 06 Jun 2008 01:45:48 UT

Dear all,
We haven't provided much by way of status updates for a while, so I
thought now would be a good time to do so. Here's what we have been
up to.
-----
The most useful thing that has happened in the past year is that we
got going on building real applications. We've had people outside the
group build real things, but that doesn't teach us enough. So we