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[Web] Everything web development related

DanielSz
9-Nov-2007
[1401x2]
REBOL [
>         Title:          "RSS Generator for Carl's Blog"
>         Date:           31-Dec-2004
>         File:           %carl-rss.r
>         Home:           http://www.livejournal.com/~premshree
>         Author:         ["Premshree Pillai" "Gregg Irwin"]
>         Version:        0.0.3

>         Purpose: {Generate valid RSS 2.0 feeds for Carl's blogs}
>     Comment: {

>         0.0.2 Massive code changes for instructional purposes. 
--Gregg

>         0.0.3 More changes, knowing Carl actually wants to use 
it. :) --Gregg
>     }
> ]
But new-blog.r (Carl's blog srirpt ) requires emit-rss.r, relegating 
the previous one to oblivion. Talking about "archebology "...
Chris
19-Nov-2007
[1403x2]
Author should be ["author" email] -- this is due to the email requirement 
in the RSS specs (you can nix it easily in emit-rss code).
Hmm, I thought that the author format was supposed to be "Author 
<email>" but appears to be "email (Author)" -- did this change at 
some point?  (have to say, prefer Atom myself...)
Anton
10-Jan-2008
[1405x6]
Any DOM experts here ?

I have a frameset with two frames, and in the first frame there is 
a menu implemented with <ul>.

I am wondering if I can move the <ul> menu out of the frame into 
the top level document. (The frame exists only for the menu, so I 
should be able to size it to zero so that it does not obscure the 
top-level doc.)

This would mean I could keep the website frameset-oriented without 
doing the work of converting it to single pages. And frames allow 
pure HTML to include code efficiently.

I found document.body.removeChild(elem), but I get lost when I try 
to identify the new location and createElement.
Can anybody help with that ?
By the way, I didn't play much with the DOM until recently.
I found that appendChild(elem) should do the move.

But still difficulty navigating the DOM tree to get to the right 
place where it can be inserted.
eg.  top.frame2.appendChild(elem)  is not working.
Frustration: The DOM inspector says the frame has a property "contentDocument" 
but I can't seem to get at it.
omg - I am starting to think it can't actually be done.
http://www.thescripts.com/forum/thread91710.html
what a heap of crap
Oldes
10-Jan-2008
[1411]
use DIVs instead of frames
Anton
10-Jan-2008
[1412]
Yes, I know it's better to avoid frames, but the site is already 
using frames, I am just modifying the navigation (or so I think).
Will
11-Jan-2008
[1413]
load the jquery library into your site and make your life much easier, 
it makes manipulating DOM a kid game 8) http://jquery.commaybe look 
also for the accordion or tree plugin for your menu
Anton
13-Jan-2008
[1414]
Thanks, WIll. A very nice suggestion. I will wait until my optimism/web-technology 
faith returns :)
Anton
3-Mar-2008
[1415x5]
Here's another question that I wish I didn't have to ask.

This doesn't work. I can't find how to reference navList even though 
it's in the same page.
What is the way to reference navList correctly ?

<html>
<body>

<ul id="navList" >
	<li>Hello</li>
</ul>


<a href="javascript:alert('width: ' + navList.name);">navList width</a>

</body>
</html>
Hooray! found the answer

<a href="javascript:alert('width: ' + document.getElementById('navList').offsetWidth);">navList 
width</a>
Seems simple, in retrospect.
Not so simple... it doesn't work in a frame for some reason.
Aha !  Tracked it down. In my frame I had a BASE tag. This caused 
the javascript error:

Error: document.getElementById("navList") has no properties

Source File: javascript:alert('width: ' + document.getElementById('navList').offsetWidth);

<html>
<head>

	<base target="_top" /> 

</head>
<body>

<ul id="navList" >
	<li>Hello</li>
</ul>


<a href="javascript:alert('width: ' + document.getElementById('navList').offsetWidth);">navList 
width</a>

</body>
</html>
Anton
4-Mar-2008
[1420]
(But hmm... maybe I wanted the base tag for something... I'll have 
to check.)
PeterWood
10-Mar-2008
[1421]
Is anybody successfully running Rebol CGI scripts with Apache on 
an Intel Mac?
Will
13-Apr-2008
[1422x2]
Hello, about JSON.r, the one on rebol.org is old, here is the latest 
http://www.json.org/json.r


but working with the flickr api I found hopefully a bug, here is 
the patch:

--- http://www.json.org/json.r
+++ (clipboard)
@@ -188,7 +188,7 @@
     ]
     ex-chars: charset {\"}
     chars: complement ex-chars
-    escaped: charset {"\>bfnrt}

+    escaped: charset {"\>bfnrt/}	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!added 
"/" otherwise this returned from flikr! give error {{"name":"Taiwan 
Panorama \/ \u53f0\u7063\u5bec\u8996\u91ce"}} 
     escape-table: [
         {\"} "^""
         {\\} "\"
@@ -198,6 +198,7 @@
         {\r} "^M"
         {\n} "^/"
         {\t} "^-"

+        {\/} "/"	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!see 
above
     ]
     digits: charset "0123456789"
     hex-c: union digits charset "ABCDEFabcdef"
would be nice if the maintainer could update the rebol.org version 
8)
Dockimbel
13-Apr-2008
[1424x3]
There's an approach that I'd like to experiment regarding web UI 
generation. The idea would be to consider the web page as a View 
target and build a View-like rendering engine able to process face 
objets and renders them as HTML. So it would be possible to generate 
HTML UI with VID directly. The DIV tag would be a good candidate 
to emulate a View face.
The events system would be splitted in two parts :


1) A small part in JS on client-side catching keyboards and mouse-events 
and sending them asynchronously to the server.


2) A server-side part emulating the View event propagation engine 
through the face objects hierarchy.
Did anyone already tried such approach ?
BrianH
13-Apr-2008
[1427]
Qtask has, I think.
Pekr
13-Apr-2008
[1428]
Doc - maybe you could communicate it with Gabriele. IIRc VID3 is 
flexible to generate various outputs. Look model is separated, but 
it would be better to ask Gabriele.
BrianH
13-Apr-2008
[1429]
Wait, no. That approach would fall over when you run into network 
latency issues. It would work great on a LAN, but not over the internet.
Pekr
13-Apr-2008
[1430]
as for JS, I am not sure it is fast enough. I saw Sun's JS based 
desktop, and it was joke compared to even VID 1 alpha speed probably 
:-)
BrianH
13-Apr-2008
[1431x3]
Keyboard and mouse events happen too quickly, and people expect them 
to be handled quickly.
It's not JS that would be the slowdown - it's the network connection 
to the server.
On the other hand, you could build a View-like rendering engine in 
JavaScript itself.
Pekr
13-Apr-2008
[1434x3]
yes, with Cairo crap instead of AGG, right? :-)
but it is the possibility. Brian - I am not sure Sun's desktop was 
slow because of communication with server - dragging of stuff around 
the screen was slow. So I just wonder, if JS generated UI can be 
as fast as View (which is still not optimised)
but I think that view-like engine could be built
BrianH
13-Apr-2008
[1437]
With the DOM for regular UI elements, and Canvas for Draw once it 
is implemented more widely. The browser is a little weak right now, 
but that is improving, finally.
Pekr
13-Apr-2008
[1438]
IIRC, when Cyphre did some game for Java enabled cell phone, he created 
small engine emulating faces
BrianH
13-Apr-2008
[1439]
JavaScript doesn't have access to Cairo directly in any browser. 
JavaScript is not anywhere near as fast as Java yet.
Dockimbel
13-Apr-2008
[1440x3]
Brian: true, network latency might be a show-stopper for such kind 
of apps over the internet.
View-like engine in JS : that looks very doable, but I'm afraid the 
result might be too slow. I've worked some time with a rendering 
engine built in JS, and it was just a little slower than native UI, 
but not very scalable (performances dropping rapidly with a growing 
number of "faces"). It was BackBase : http://www.backbase.com.
So maybe the solution would be to handle those events that need fast 
response like typing text in a field, or mouse-over gfx effects, 
on the client-side and send others to the server.
Pekr
13-Apr-2008
[1443]
but what is the idea? to have one rebol view app with VID or browser 
UI?
Dockimbel
13-Apr-2008
[1444x2]
The goal would be to use VID/REBOL to build web applications without 
typing any HTML or JS.
So yes, to make the browser another potential "target" for View apps.
Pekr
13-Apr-2008
[1446]
then Gabriele is good target to consider, he might have some ideas, 
as he knows best what VID3 is going to be about. Imo we should skip 
VID2 ...
Dockimbel
13-Apr-2008
[1447]
Doing the VID2( or 3) interfacing is the easiest part ;-)
Will
13-Apr-2008
[1448x2]
If we are going to use a JS framework, I insist in using jQuery, 
the core is really mature,fast and stable, it has the syntax that 
more resemble the way we think in rebol. http://docs.jquery.com/Main_Page
livequery, how cool 8)
http://www.learningjquery.com/2008/03/working-with-events-part-1
Gabriele
14-Apr-2008
[1450]
Brian, no, Qtask hasn't, and that's what i've always been fighitng 
with Reichart about :)