Re: [Proto-Scripty] Any patch/fix available for CVE-2020-27511

[Walter Lee Davis]

There is a PR in Github since January 2021 to fix this, but it hasn't made its 
way through the process yet. The last update was 22 days ago, but I don't know 
what the timeline will be for this. 
https://github.com/prototypejs/prototype/pull/349

Walter

> On Jun 11, 2022, at 12:56 AM, Vinay Kumar  wrote:
> 
> Hi All,
> 
> Is there any fix/patch available for the vulnerability  CVE-2020-27511 in 
> Prototype 1.7.3?
> 
> Regards,
> Vinay Kumar
> 
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Re: [Proto-Scripty] End of life ?

[Walter Lee Davis]

I don't speak with any authority for either Thomas Fuchs or Andrew Dupont, but 
both of these projects are effectively out of date. If you look at the latest 
commit dates on GitHub, you'll see that very little has been added/changed over 
the past couple of years. I recognize that this is not a real metric, since a 
finished, working thing often doesn't need lots of changing. But it's a hint 
that security needs may be going unmet.

I desperately love Prototype. Full stop. I think it is the way that JavaScript 
should work. But that opinion is increasingly out of step with "modern" JS. I 
was forced by [day job] to learn jQuery, and now I've been relying on various 
"you may not need jQuery" conversion hint sites to make my work more "vanilla".

I have been having a very good time with Stimulus.js, though, and that has been 
really refreshing.

As far as animation and transition effects go, I don't know of anything that 
even approaches what Script.aculo.us does/did.

Walter

> On Sep 29, 2021, at 2:44 AM, PrototypeFanClub  wrote:
> 
> Hi,
> 
> I am new to this community. I am using an older version of script.aculo.us 
> and prototype in my work. I need an answer to following question before I 
> plan to upgrade the library to a later version.  
> 
> a) I do not see a release for script.aculo.us (last release in 2010) and 
> prototype (last release in 2015). Shall I consider these libraries End of 
> Life or are there a replacement for these libraries which are actively 
> supported by community and do not have any reported security issues.
> 
> Thanks
> 
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Re: [Proto-Scripty] Thiking to revive the prototype helpers from Rails 2.3 for Rails 5+

[Walter Lee Davis]

I have used Prototype.js in Rails up to 4.2, and it worked well there. Goodies 
like the sortable list and other Script.aculo.us bits were usable there as 
well. I didn't try very hard to use them in 5, because by that time I was also 
working to use Bootstrap, and that was harder to use without jQuery. While it 
is possible to use both at once, I refuse to do that to my visitors.

It's ironically quite a bit easier to use Prototype in Rails >= 6, because 
there is no longer a hard dependency on jQuery. And the next Bootstrap will no 
longer require jQuery either.

As far as the Rails bits, I agree, it would be nice to have some of that back. 
Perhaps we could start by writing some helpers first, and then extract them out 
to a gem.

Walter

> On Feb 28, 2020, at 7:27 PM, Mathieu Jobin  wrote:
> 
> I think the JS world as gone bad... I really like how things were with 
> prototype JS and friends.
> especially the helpers in ruby...
> 
> I wonder if there would be other people interested in using them.
> I believe the last version was in rails 2.3.18, and prototype 1.6.0 was 
> included at the time.
> 
> so I would try to make this work with rails 5 and 6, first.
> then upgrading the library to 1.7.3+
> 
> would anyone else uses them? or would like to participate?
> 
> cheers,
> 
> Mathieu
> 
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Re: [Proto-Scripty] Ajax problem

[Walter Lee Davis]

> On Jun 23, 2019, at 12:22 PM, Chris Sansom  wrote:
> 
> Hi Walter
> 
> Thanks for your long and thoughtful response… some of which I understood! (I 
> did say I was rusty, and I was never extremely advanced - never got into OOP 
> for instance unless it was laid out on a plate for me as prototype does).
> 
> Just a quick question - do you know whether there’s some limit to the length 
> of a string that can be returned via Ajax, and whether it can contain 
> carriage returns, tabs or whatever? What I’m returning here is politely 
> formatted and indented html with 76 options in the select.

Yup. That will stop a JavaScript insertion like you want to do cold. Try 
replacing all of the newlines [and carriage returns, if any] with a single 
space before you pass that value back to the Ajax request. It doesn't matter 
how long the line is, as long as it's one line. I generally substitute 
/[\n\r]+/ with ' '.

Walter

> 
>> On 23 Jun 2019, at 16:09, Walter Lee Davis  wrote:
>> 
>> One of the best ways to work this out is to build a cut-down example, in one 
>> page, that tries to do what you're after here. If you can get that to fail, 
>> post it as a Gist or similar. From your description, you're going about 
>> things the right way.
>> 
>> One other piece of advice. Rather than using a numerical index to get the 
>> first of some collection, try making your method iterate over the found 
>> results and operate conditionally. This will give you another place to put 
>> console.log statements to further refine exactly what is going on inside:
>> 
>>> var newhtml = xml.getElementsByTagName('newhtml')[0].firstChild.nodeValue;
>> 
>> When you say that the correct code to insert is there in the Ajax response, 
>> that cuts that part of the problem out, and your example page can just do 
>> something dumb like this:
>> 
>> var data_to_insert = $('some_example_element').remove().innerHTML.toString();
>> 
>> ...where you have a DOM element like > ... your element here ...>
>> 
>> I have found over the years that when you have the correct element (legally 
>> possible to insert into a given container), then Prototype (and the browser) 
>> just does what you'd expect. But if what you are getting back from the 
>> server doesn't make any sense in terms of your DOCTYPE (say you are trying 
>> to insert raw text into a , rather than trying to insert a , then 
>> the browser will just ignore you. It's not a Prototype error, in other 
>> words, just the browser being pedantic when being called in a JS update 
>> mode. 
>> 
>> Finally, see if you can get your server to return the HTML of the picker, 
>> fully rendered. Then you should be able to do this:
>> 
>> new Ajax.updater('parent_element_id', '/server/url', {
>> parameters: { foo: 'bar', ...}, // optional, pass to your server some 
>> parameters
>> insertion: 'bottom' // this lets you put the rendered element at the bottom 
>> of the existing children of the parent
>> });
>> 
>> If #parent_element_id is a , then the HTML you get from 
>> /server/url?foo=bar should be:
>> 
>> 
>> 
>>   
>> 
>> 
>> 
>> ... with all of the whitespace removed.
>> 
>> Walter
>> 
>>> On Jun 22, 2019, at 11:25 AM, Chris Sansom  wrote:
>>> 
>>> With apologies in advance for the length...
>>> 
>>> I retired a few years ago from web development, where I used Prototype 
>>> quite a bit in the later years. I'm somewhat rusty now, but I'm trying to 
>>> do some development for purely personal use. It won't be on the open web, 
>>> just on our local server. It's all been going fine (if slowly!), but now 
>>> I've hit a brick wall with Ajax.
>>> 
>>> Here's what I'm trying to do:
>>> *  I have a form with one or more s, each within its own , all 
>>> in the one .
>>> *  Each  contains the same list of items from a table in a MySQL 
>>> database.
>>> *  The last  has nothing selected and has the class "addselect".
>>> *  The idea is that if I select something from that last , an 
>>> onChange event is triggered which calls an Ajax script to add a new 
>>>  (containing the same items). This is set up on page load in a 
>>> "document.observe ('dom:loaded', function()..." at the top of the 
>>> javascript file.
>>> *  Each  has a sequential name and id, eg 'name="country[0]" 
>>> id="country_0"', the next country[1] and country_1, and so on. The newly 
>>> created  wo

Re: [Proto-Scripty] Ajax problem

[Walter Lee Davis]

Sorry, typo here:

> On Jun 23, 2019, at 11:09 AM, Walter Lee Davis  wrote:
> 
> If #parent_element_id is a , then the HTML you get from 
> /server/url?foo=bar should be:


I meant, if the parent element is a .

Walter

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Re: [Proto-Scripty] Ajax problem

[Walter Lee Davis]

One of the best ways to work this out is to build a cut-down example, in one 
page, that tries to do what you're after here. If you can get that to fail, 
post it as a Gist or similar. From your description, you're going about things 
the right way.

One other piece of advice. Rather than using a numerical index to get the first 
of some collection, try making your method iterate over the found results and 
operate conditionally. This will give you another place to put console.log 
statements to further refine exactly what is going on inside:

> var newhtml = xml.getElementsByTagName('newhtml')[0].firstChild.nodeValue;

When you say that the correct code to insert is there in the Ajax response, 
that cuts that part of the problem out, and your example page can just do 
something dumb like this:

var data_to_insert = $('some_example_element').remove().innerHTML.toString();

...where you have a DOM element like 

I have found over the years that when you have the correct element (legally 
possible to insert into a given container), then Prototype (and the browser) 
just does what you'd expect. But if what you are getting back from the server 
doesn't make any sense in terms of your DOCTYPE (say you are trying to insert 
raw text into a , rather than trying to insert a , then the browser 
will just ignore you. It's not a Prototype error, in other words, just the 
browser being pedantic when being called in a JS update mode. 

Finally, see if you can get your server to return the HTML of the picker, fully 
rendered. Then you should be able to do this:

new Ajax.updater('parent_element_id', '/server/url', {
  parameters: { foo: 'bar', ...}, // optional, pass to your server some 
parameters
  insertion: 'bottom' // this lets you put the rendered element at the bottom 
of the existing children of the parent
});

If #parent_element_id is a , then the HTML you get from /server/url?foo=bar 
should be:


  

  


... with all of the whitespace removed.

Walter

> On Jun 22, 2019, at 11:25 AM, Chris Sansom  wrote:
> 
> With apologies in advance for the length...
> 
> I retired a few years ago from web development, where I used Prototype quite 
> a bit in the later years. I'm somewhat rusty now, but I'm trying to do some 
> development for purely personal use. It won't be on the open web, just on our 
> local server. It's all been going fine (if slowly!), but now I've hit a brick 
> wall with Ajax.
> 
> Here's what I'm trying to do:
> *  I have a form with one or more s, each within its own , all in 
> the one .
> *  Each  contains the same list of items from a table in a MySQL 
> database.
> *  The last  has nothing selected and has the class "addselect".
> *  The idea is that if I select something from that last , an 
> onChange event is triggered which calls an Ajax script to add a new  
> (containing the same items). This is set up on page load in a 
> "document.observe ('dom:loaded', function()..." at the top of the javascript 
> file.
> *  Each  has a sequential name and id, eg 'name="country[0]" 
> id="country_0"', the next country[1] and country_1, and so on. The newly 
> created  would have the next name and id in sequence.
> I hope that all makes some sense.
> 
> So...
> The handler function set up in 'dom:loaded...' gets the next index number for 
> the name and id of the new , and sends this ('entryindex') and the 
> name of the table to search ('list') to the Ajax script, and off we go:
> 
>   var pars = 'list=' + list + '=' + newIndex;
>   var url = base + 'ajaxgetmenu';
>   
>   // send request to do the business
>   var myAjax = new Ajax.Request (url, {
>   method: 'post',
>   parameters: pars,
>   onSuccess: function (req) {
>   var xml = req.responseText;
>   ...
> 
> This far, everything is hunkydory. Safari's Web Inspector shows exactly the 
> correct result - a nice new  with the correct name and contents - 
> under 'XHRs' in its Resources tab. So I know the script is being called and 
> is operating correctly. But where it falls over is with what comes next:
> 
>   var newhtml = 
> xml.getElementsByTagName('newhtml')[0].firstChild.nodeValue;
> 
> This, incidentally, is taken from a script I developed back in my 
> professional days which I know worked perfectly. But something is failing 
> here, cuz it don't work! If I put an alert in ('ok') before this line, it 
> pops up, but if I put it after this line it doesn't. And yet no errors are 
> reported. And of course the next line doesn't work either:
> 
>   $('thisid').up('ul').insert (newhtml);
> 
> (And I know "$('thisid')" is right because I put that in an alert to check 
> it.)
> 
> So I simplified it. I abandoned XML and made the result plain text instead, 
> to be inserted verbatim. Again, the script produces a perfect result in 
> Safari's Web Inspector, but even when newhtml is plain text (and I skip 

Re: [Proto-Scripty] document.write() warnings from Chrome with scriptaculous

[Walter Lee Davis]

> On Mar 5, 2018, at 4:21 PM, Steevithak  wrote:
> 
> I'm doing some maintenance on an older site that was developed using 
> something called prototype.js and scriptaculous. The scriptaculous website 
> pointed me to this Google group for support. 
> 
> When pages load I see lots of warnings from Chrome about document.write() 
> being used. Like so:
> 
> [Violation] Avoid using document.write()  scriptaculous.js:31
> [Violation] Parser was blocked due to 

Re: [Proto-Scripty] Image dropping to canvas is not working properly

[Walter Lee Davis]

> On Jul 6, 2016, at 3:32 AM, Manjula Asirwatham  
> wrote:
> 
> Hi,
> 
> We have an site www.rightgifting.com which customer can create personalized 
> gifts. we use fabric JS to do the design of the products. But when the 
> customer crop the image is doesn't fall to canvas at first attempt. if we 
> refresh the browser and re do the same it is working sometimes. can you 
> suggest us a solution.

If you look in the Web Inspector in Safari (or similar developer console in any 
other browser) you will see a couple of errors, starting with the missing 
jQuery 1.8.3 min file. That cascades into a JS reference error "Can't fine 
variable: exports". I have no idea whether that's relevant to your particular 
issue (didn't want to hunt around to find the exact page where your canvas drop 
happens -- could you post a direct link or some directions to reproduce the 
error?), but in my experience, once you have a JS error in your page, you have 
a non-trivial chance of having knock-on issues with unrelated scripts in the 
same page. Try chasing that edge of the problem first, and see if the rest 
clears up. 

These sorts of "Heisenbugs" are particularly painful, but if reloading helps, 
maybe the problem is in a listener that is not being loaded properly, or maybe 
it's just HTTP gremlins swallowing your resources every once in a while. 

If you're using pjax or Turbolinks to speed up page loads, you may need to load 
your script on a different event than dom:loaded, since that will only fire 
once, when the outer page shell loads for the first time (this is one way to 
end up with a page that works on reload, but not when you navigate to that page 
through a link).

Walter


> 
> Regards,
> Manjula A.
> 
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Re: [Proto-Scripty] help me with prototype ajax .. request are slow

[Walter Lee Davis]

It's not clear what your goal is. Do you want to reduce the number of requests 
from the page to your server, as I suggested, or do you want each request to be 
faster? In you message, you mentioned that I was seeing the faster return 
because "the cache was on". I can't think of a reason why you would ever want 
that cache to be off, or what you would gain by having it off. It's hard to see 
what your problem is, other than the overall design of how the page works 
(making 1 request per second for as long as the page is loaded).

Walter

> On Jun 11, 2016, at 7:47 PM, Mahdi Farhat <mahdyfar...@gmail.com> wrote:
> 
> i have sent you an email on 
> 
> wal**@wdstudio.com
>  please reply
> 
> 
> On Saturday, June 11, 2016 at 9:28:59 PM UTC+3, Walter Lee Davis wrote:
> I'm watching it in the Network pane of Safari Web Inspector. It's running at 
> a total duration of 1.464 ms, but a latency of 159.4 ms. So your server is 
> replying nearly instantly when it gets the request, but there's a lag while 
> the message travels to and fro. Overall, this is astoundingly fast. 
> 
> What I have seen pages like this do, however, is only update to the server 
> every few minutes or more, and have the browser's JavaScript update the tick 
> tock countdown timer independently. Let the local time drift out of synch 
> with the server, then catch up each time the "heartbeat" connects back to the 
> server. I can't imagine that this will be as fast when there are hundreds of 
> visitors connecting at once, constantly pinging every second. 
> 
> Walter 
> 
> > On Jun 11, 2016, at 1:07 PM, Mahdi Farhat <mahdy...@gmail.com> wrote: 
> > 
> > please check li1510-169.members.linode.com 
> > 
> > On Saturday, June 11, 2016 at 5:52:02 PM UTC+3, Walter Lee Davis wrote: 
> > 
> > > On Jun 10, 2016, at 10:40 AM, Mahdi Farhat <mahdy...@gmail.com> wrote: 
> > > 
> > > i asked a developer to develop me a a penny auction script but the 
> > > request are slow , 300 ms on local machine and 600ms on server 
> > > can i know why?  can you help me? is the code not optimized? 
> > 
> > Where are you measuring these times? Is this how long the JavaScript takes 
> > to execute, or how long the total (request/response/calculating/updating 
> > page) cycle takes per request? There are a lot of factors that can cause 
> > Ajax to take time, not many of them come down to the programming within the 
> > page. 
> > 
> > Another question, how many requests are sent by the page? I have only 
> > glanced over the code, but it may be sending a separate request per item on 
> > the page, which could get very "chatty" and cause the server to bog down in 
> > replying to the requests. Have you watched the page in the Developer Tools 
> > part of your browser? Can you post a link to a sample page showing the 
> > script in action? 
> > 
> > Walter 
> > 
> > > 
> > > 
> > >   
> > > function auctionTimer(dt,no,id) 
> > > { 
> > > //alert(no); 
> > >  var end = new Date(dt); 
> > >  var now_date= new Date(no); 
> > >  // alert(now_date); 
> > >  // alert(end); 
> > > var _second = 1000; 
> > > var _minute = _second * 60; 
> > > var _hour = _minute * 60; 
> > > var _day = _hour * 24; 
> > >   flag_time = true; 
> > > timer = ''; 
> > > setInterval(function(){showRemaining();},1000); 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > function showRemaining() 
> > > { 
> > > var date = no; 
> > > var now = new Date(date); 
> > > var de= now.getTime(); 
> > > 
> > > if ( flag_time ) { 
> > > timer = de; 
> > > } 
> > > var d = new Date(timer); 
> > > currentYear = d.getFullYear(); 
> > > month = d.getMonth()+1; 
> > > 
> > > var currentDate = d.getDate(); 
> > > currentDate = currentDate < 10 ? '0'+currentDate : 
> > > currentDate; 
> > > 
> > > var hours = d.getHours(); 
> > > var minutes = d.getMinutes(); 
> > > var seconds = d.getSeconds(); 
> > > 
> > > // var ampm = ho

Re: [Proto-Scripty] help me with prototype ajax .. request are slow

[Walter Lee Davis]

I'm watching it in the Network pane of Safari Web Inspector. It's running at a 
total duration of 1.464 ms, but a latency of 159.4 ms. So your server is 
replying nearly instantly when it gets the request, but there's a lag while the 
message travels to and fro. Overall, this is astoundingly fast.

What I have seen pages like this do, however, is only update to the server 
every few minutes or more, and have the browser's JavaScript update the tick 
tock countdown timer independently. Let the local time drift out of synch with 
the server, then catch up each time the "heartbeat" connects back to the 
server. I can't imagine that this will be as fast when there are hundreds of 
visitors connecting at once, constantly pinging every second.

Walter

> On Jun 11, 2016, at 1:07 PM, Mahdi Farhat <mahdyfar...@gmail.com> wrote:
> 
> please check li1510-169.members.linode.com
> 
> On Saturday, June 11, 2016 at 5:52:02 PM UTC+3, Walter Lee Davis wrote:
> 
> > On Jun 10, 2016, at 10:40 AM, Mahdi Farhat <mahdy...@gmail.com> wrote: 
> > 
> > i asked a developer to develop me a a penny auction script but the request 
> > are slow , 300 ms on local machine and 600ms on server 
> > can i know why?  can you help me? is the code not optimized? 
> 
> Where are you measuring these times? Is this how long the JavaScript takes to 
> execute, or how long the total (request/response/calculating/updating page) 
> cycle takes per request? There are a lot of factors that can cause Ajax to 
> take time, not many of them come down to the programming within the page. 
> 
> Another question, how many requests are sent by the page? I have only glanced 
> over the code, but it may be sending a separate request per item on the page, 
> which could get very "chatty" and cause the server to bog down in replying to 
> the requests. Have you watched the page in the Developer Tools part of your 
> browser? Can you post a link to a sample page showing the script in action? 
> 
> Walter 
> 
> > 
> > 
> >   
> > function auctionTimer(dt,no,id) 
> > { 
> > //alert(no); 
> >  var end = new Date(dt); 
> >  var now_date= new Date(no); 
> >  // alert(now_date); 
> >  // alert(end); 
> > var _second = 1000; 
> > var _minute = _second * 60; 
> > var _hour = _minute * 60; 
> > var _day = _hour * 24; 
> >   flag_time = true; 
> > timer = ''; 
> > setInterval(function(){showRemaining();},1000); 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > function showRemaining() 
> > { 
> > var date = no; 
> > var now = new Date(date); 
> > var de= now.getTime(); 
> > 
> > if ( flag_time ) { 
> > timer = de; 
> > } 
> > var d = new Date(timer); 
> > currentYear = d.getFullYear(); 
> > month = d.getMonth()+1; 
> > 
> > var currentDate = d.getDate(); 
> > currentDate = currentDate < 10 ? '0'+currentDate : 
> > currentDate; 
> > 
> > var hours = d.getHours(); 
> > var minutes = d.getMinutes(); 
> > var seconds = d.getSeconds(); 
> > 
> > // var ampm = hours >= 12 ? 'PM' : 'AM'; 
> > // hours = hours % 12; 
> > // hours = hours ? hours : 12; // the hour ’0′ should be 
> > ’12′ 
> > minutes = minutes < 10 ? '0'+minutes : minutes; 
> > seconds = seconds < 10 ? '0'+seconds : seconds; 
> > var strTime = hours + ':' + minutes+ ':' + seconds; // + ' 
> > ' + ampm; 
> > timer = timer + 1000; 
> >var now_time = currentYear+'/' + month+'/' + currentDate + ' 
> > ' + strTime ; 
> > 
> > // document.getElementById("demo1").innerHTML= 
> > currentMonth1+' ' + currentDate+' , ' + currentYear + ' ' + strTime ; 
> > 
> > // document.getElementById("demo2").innerHTML= 
> > currentDate+':' +(month+1)+':' +currentYear + ' ' + strTime ; 
> > 
> > // document.getElementById("demo3").innerHTML= strTime ; 
> > 
> > // document.getElementById("demo4").innerHTML= current_day 
> > + ' , ' +currentMonth1+' ' + currentDate+' , ' + currentYear +

Re: [Proto-Scripty] help me with prototype ajax .. request are slow

[Walter Lee Davis]

> On Jun 10, 2016, at 10:40 AM, Mahdi Farhat  wrote:
> 
> i asked a developer to develop me a a penny auction script but the request 
> are slow , 300 ms on local machine and 600ms on server
> can i know why?  can you help me? is the code not optimized? 

Where are you measuring these times? Is this how long the JavaScript takes to 
execute, or how long the total (request/response/calculating/updating page) 
cycle takes per request? There are a lot of factors that can cause Ajax to take 
time, not many of them come down to the programming within the page.

Another question, how many requests are sent by the page? I have only glanced 
over the code, but it may be sending a separate request per item on the page, 
which could get very "chatty" and cause the server to bog down in replying to 
the requests. Have you watched the page in the Developer Tools part of your 
browser? Can you post a link to a sample page showing the script in action?

Walter

> 
> 
>   
> function auctionTimer(dt,no,id)
> {
> //alert(no);
>  var end = new Date(dt);
>  var now_date= new Date(no);
>  // alert(now_date);
>  // alert(end);
> var _second = 1000;
> var _minute = _second * 60;
> var _hour = _minute * 60;
> var _day = _hour * 24;
>   flag_time = true;
> timer = '';
> setInterval(function(){showRemaining();},1000);
> 
> 
> 
> 
> 
> 
> 
> 
> function showRemaining() 
> {
> var date = no;
> var now = new Date(date);
> var de= now.getTime();
> 
> if ( flag_time ) {
> timer = de;
> }
> var d = new Date(timer);
> currentYear = d.getFullYear();
> month = d.getMonth()+1;
>
> var currentDate = d.getDate();
> currentDate = currentDate < 10 ? '0'+currentDate : 
> currentDate;
> 
> var hours = d.getHours();
> var minutes = d.getMinutes();
> var seconds = d.getSeconds();
> 
> // var ampm = hours >= 12 ? 'PM' : 'AM';
> // hours = hours % 12;
> // hours = hours ? hours : 12; // the hour ’0′ should be ’12′
> minutes = minutes < 10 ? '0'+minutes : minutes;
> seconds = seconds < 10 ? '0'+seconds : seconds;
> var strTime = hours + ':' + minutes+ ':' + seconds; // + ' ' 
> + ampm;
> timer = timer + 1000;
>var now_time = currentYear+'/' + month+'/' + currentDate + ' ' 
> + strTime ;
> 
> // document.getElementById("demo1").innerHTML= 
> currentMonth1+' ' + currentDate+' , ' + currentYear + ' ' + strTime ;
> 
> // document.getElementById("demo2").innerHTML= 
> currentDate+':' +(month+1)+':' +currentYear + ' ' + strTime ;
> 
> // document.getElementById("demo3").innerHTML= strTime ;
> 
> // document.getElementById("demo4").innerHTML= current_day + 
> ' , ' +currentMonth1+' ' + currentDate+' , ' + currentYear + ' ' + strTime ;
> 
> 
>  
> // alert(now_time);
> 
> var now = new Date(now_time);
>  
> // alert(now);
> var distance = end - now;
>
> if (distance < 0) {
>  if (distance>-3) 
> {
> location.reload(true); 
> return;
> };
> 
> clearInterval(timer);
> document.getElementById('countdown_'+id).innerHTML = 'Sold';
> document.getElementById('bid-box').hide();
> document.getElementById('auction_watcher').hide();
> toggleDisabled(document.getElementById('bid-box'));
> toggleDisabled(document.getElementById('auction_watcher'));
> document.getElementById('watcher_url').removeAttribute('href');
> return;
> }
> var days = Math.floor(distance / _day);
> var hours = Math.floor((distance % _day) / _hour);
> var minutes = Math.floor((distance % _hour) / _minute);
> var seconds = Math.floor((distance % _minute) / _second);
> if (days <10)
> {days = '0' + days;}
> if (hours <10)
> {hours = '0' + hours;}
> if (minutes < 10)
>{ minutes = '0' + minutes;}
> if (seconds < 10)
> {seconds = '0' + seconds; }
> if(days==00)
> {
> dytext = '';   
> 
> }
> else if(days==1)
> {
> dytext = ''+ days +' Day  ';  
>  
> }
> else
> {
>  dytext = ''+ days +' Days  
> ';
> }
> if(hours==00) {
> hrtext='';
> }
> else {
> 

Re: [Proto-Scripty] Does prototype.js support any design pattern?

[Walter Lee Davis]

On Nov 9, 2015, at 2:01 AM, Amit Dwivedi  wrote:

> Hi,
> As far as i know, prototype.js is a framework based on OO(correct me if i m 
> wrong). we can write a new class in java script which can extend the behavior 
> of existing one. My question is...Is it support some sort of Design Pattern 
> (like MVC).
>  One more thing if we want to add new features by using prototype.js, is 
> it easily pluggable. 

Prototype is a foundation toolkit, which starts with the premise that 
JavaScript needs some help to become the great OO language it could be. It 
extends the language in useful ways, making it possible to write good code 
quickly, with useful shortcuts and mental models. The next great thing that it 
does is spackle over the (thankfully shrinking) mountain of differences between 
various browsers' JS implementations, giving you a single stable API to write 
to. Finally, it provides useful core tools to build applications that extend 
the DOM or communicate out of band with the server using Ajax. 

I like to think of it as "a tool that can build tools", which appeals to this 
grandson of a tool-and-die maker very much. It's much less a plug-in support 
mechanism, which I liken jQuery to, than a better way to write and reason about 
JavaScript applications in browsers. I like to say that "I could build jQuery 
in Prototype, but not the other way around".

So to answer your main question, no, there isn't any MVC framework that I know 
of that is based upon Prototype, but if you had a good reason to build one, it 
would make the process much simpler and widely runnable than if you stuck to 
vanilla JS.

Walter

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Re: [Proto-Scripty] Change $ to $p or $proto in prototype.js

[Walter Lee Davis]

The framework doesn't provide any tools to enable that, but you could fork it 
and do that I suppose. You may have a larger issue because Prototype extends 
the prototype (small p) of a lot of different parts of the JavaScript language, 
and some of these changes mean that sloppily-written code will error out rather 
than sorta work. Iterating over an object with for .. in will also iterate over 
all of the methods that Prototype adds to every object, for example. This is 
fine if you have a normal object, but an Array is also an object, and it gets a 
bunch of new methods added to it as well. This breaks assumptions that code 
written in the absence of Prototype may be relying on to work at all.

Walter

On Oct 22, 2015, at 1:58 AM, Amit Dwivedi  wrote:

> Hi, 
> Can we change $ in prototype.js to something else like $p or $proto
> 
> Thanks
> 
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Re: [Proto-Scripty] active elements

[Walter Lee Davis]

http://jsfiddle.com is free for anyone to use. One of the benefits of making a 
cut-down example is that often, in the process of making a failing example, 
you'll uncover the previously unrelated reason for the failure. 

Walter

On Sep 3, 2014, at 4:15 AM, Иван Иванов wrote:

 Unfortunately I do not have a hosting.
 
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Re: [Proto-Scripty] active elements

[Walter Lee Davis]

Can you post a link to a page or fiddle that shows the problem in situ?

Walter

On Aug 28, 2014, at 4:18 AM, Иван Иванов wrote:

 Yes, I tried. Nothing changed.
 
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Re: [Proto-Scripty] Event.observe

[Walter Lee Davis]

Assuming that you put script tags around the JavaScript, and include 
prototype in your page head, it does. One thing you may be overlooking is 
source code order. If your script tag (containing this handler) occurs in the 
page head, then the input#login will not exist yet at the time that the 
handler goes looking for it (at the moment that the script is first read). 
There are two ways around this.

1. (in the page head)
document.observe('dom:loaded', function(){
// your script here
});

2. (also in the page head)
document.on('click', '#login', function(evt, elm){
alert('t2')
});

Oh, and for completeness,
3. (somewhere after input id=login appears in the source, like at the line 
before /body)
// your script, unmodified

Walter

On Jul 14, 2014, at 2:33 AM, Иван Иванов wrote:

 Hi Team,
 
 input id=login type='submit' value='login' /
 
 Event.observe(login, click, function(){
 alert(t2);
 });
 
 Why don't work?
 
 Thanks
 
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Re: [Proto-Scripty] Math.Random Eval usage in prototype.js

[Walter Lee Davis]

On Jul 3, 2014, at 6:13 AM, Mahendran Pandian wrote:

 Hi Team,
we are using prototype.js for past 8 years in our product development, 
 Recently our organization introduced code scanner(HP Fortify) to verify any 
 code vulnerable in the product. The scanner identified as 
 prototype.jsscript.aculo.us uses eval and math.rondom, with is insecure.
 
   Can we able to remove/drop the usage of those functions in prototype.js? or 
 is there any alternative way to achieve without using those functions?
 

Prototype uses eval in a few places, notably in the Ajax callbacks to 
instantiate embedded scripts (evalScripts: true). I think that it may use it 
when building up a JSON callback, too, but I haven't toured that part of the 
code recently enough to tell you for certain. I recommend you read through the 
source from top to bottom, identify the spots where eval is used (not many, 
IIRC) and see if they intersect your usage of the library. Try commenting them 
out and see what happens to your code. That's the only way to be sure. 
Prototype is a largish library, and it stands to reason that nobody uses all of 
it all the time.

By the way, blindly grepping for `eval` is a fairly naive way to do security. 
If your program sanitizes its inputs, there's no harm in evaluating those 
inputs, in my opinion.

Walter

 
 Thanks,
 Mahendran..
 
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[Proto-Scripty] What's the difference between fire() and whatever turbo links does?

[Walter Lee Davis]

I'm trying to observe the page:load event fired by turbo links, and it's not 
working for me. When the body is replaced by turbo links in Rails 4.1, it's 
supposed to fire the page:load event at the very end. But this works:

document.addEventListener('page:load', decorate_markdown);

while this:

document.observe('page:load', decorate_markdown);

does not. I haven't found anything conclusive about this on Google or the 
GitHub issues for Turbolinks. Other people have complained about the 
integration with jQuery's ready() method, so I suspect there is something funny 
here.

Walter

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[Proto-Scripty] Is there any way to cancel an Ajax request once it's been issued?

[Walter Lee Davis]

I've looked through the API a couple of different times, and I can't see a way 
to do that. I've tried assigning a variable to it:

var foo = new Ajax.Request()

but re-assigning foo to point to a different request doesn't stop the first one 
-- it carries on like it was still there, and chews up server resources.

I've read through the source, and there's nothing there about stopping the 
request that I can see. Any ideas?

Walter

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Re: [Proto-Scripty] Is there any way to cancel an Ajax request once it's been issued?

[Walter Lee Davis]

That doesn't seem to do anything -- Rails keeps on chugging along and returning 
the stuff for the previous request. It's only an issue because these are 
massive requests, they take many seconds each to finish, and if you click on a 
link to load a really large one, then click on a link to load a smaller one, 
the smaller one would load first, then the larger one would wipe it out. I've 
already worked around that with a semaphore, but I'd really like to tell the 
server to quit trying!

Walter

On Apr 15, 2014, at 9:42 PM, Jason Westbrook wrote:

 
 You can call .abort() on the transport property of Ajax, its part of the 
 internal xmlhttprequest object 
 https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest
 
 so for
 
 var foo = new Ajax.Request()
 
 foo.transport.abort();
 
 but YMMV as the server might still continue to process the request and the 
 abort() might only kill the callbacks but not the process in the server.
 
 
 
 Jason Westbrook | T: 313-799-3770 | jwestbr...@gmail.com
 
 
 On Tue, Apr 15, 2014 at 6:13 PM, Walter Lee Davis wa...@wdstudio.com wrote:
 I've looked through the API a couple of different times, and I can't see a 
 way to do that. I've tried assigning a variable to it:
 
 var foo = new Ajax.Request()
 
 but re-assigning foo to point to a different request doesn't stop the first 
 one -- it carries on like it was still there, and chews up server resources.
 
 I've read through the source, and there's nothing there about stopping the 
 request that I can see. Any ideas?
 
 Walter
 
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Re: [Proto-Scripty] simple logging in website with Prototype

[Walter Lee Davis]

Where would these credentials be stored? That's the key to your problem. 
Setting the value is trivial with $('elementID').setValue('whatever');

Walter

On Jan 30, 2014, at 5:51 AM, Tommaso Ferrara wrote:

 Hi, I would like to use Prototype to make a logging (for example, to email 
 Yahoo https://login.yahoo.com/config/login_verify2?.intl=us.src=ym;). There 
 are examples, fill the fields username / pass automatically to login? 
 Basically I would like to replicate what browsers are automatically 
 remembering the pass. Thanks.
 
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Re: [Proto-Scripty] Autocompleter and IE11

[Walter Lee Davis]

On Jan 7, 2014, at 1:04 PM, Andy Wallace wrote:

 Thanks, Walter, we'll take a look. I was hoping to find a way to fix this one 
 - it looks like IE11 is grabbing the mouseclick event before it gets down to 
 the Autocompleter itself. SIgh. Thanks again, Microsoft.
 andy

Firefox used to do this same thing as well, it's not just IE (mind you, this 
was when FF was in single-digit version numbers -- we're talking years). Clicks 
on the chrome (the elevator track and thumb generated by the browser) are not 
registered as being on the floating element, and since the behavior of 
Scripty's AC widget is to interpret a click anywhere but on itself as a 
signal to close the overlay, that's what happens. I forget how I worked around 
that years ago when I first encountered it in FF. 

Walter

 
 
 
 On Monday, January 6, 2014 7:51:48 PM UTC-8, Walter Lee Davis wrote:
 Here's a replacement I wrote a while back. It's mostly a drop-in replacement 
 for the one in Scriptaculous, although it probably lacks some of the fit and 
 polish of the original. It doesn't suffer from the scrolling issue because it 
 doesn't provide a scrollbar. You may want to experiment with that approach. I 
 find that it's also a good idea to make the server limit the number of 
 suggestions, so you don't so much need to scroll at all. 
 
 https://gist.github.com/walterdavis/8294372 
 
 Walter 
 
 On Jan 6, 2014, at 8:12 PM, Andy Wallace wrote: 
 
  I'm having an issue with IE11 and the autocompleter. It only shows up with 
  IE11, all other browsers (including other versions of IE) are working 
  fine... The problem is that, once the drop-down of selections appears, if 
  you click on the scrollbar in any way, it disappears. You can see it on 
  this test site: 
  
  http://cis-test--of-enom.com 
  
  In the lower part of the photograph, you'll see City:. Type in the letter 
  a, or click on the down arrow, and the list appears. If you then click on 
  the scrollbar, the list disappears. Selecting from the list works, and if 
  you click on the scroll bar to scroll the list down, and then click on the 
  down arrow, the list reappears in the correct position.  There is a 
  function defined in the code hide:, which I have discovered is getting 
  called. 
  
  Version info: 
  
  
  script.aculo.us controls.js v1.9.0 
  
  prototype 1.7 
  
  It's non-trivial to update my versions, so if there is an alternative, I'd 
  rather use that in the short run. 
  
  
  
  Thanks, 
  Andy 
  
  awal...@cisdata.net 
  
  
  
  
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Re: [Proto-Scripty] Autocompleter and IE11

[Walter Lee Davis]

Here's a replacement I wrote a while back. It's mostly a drop-in replacement 
for the one in Scriptaculous, although it probably lacks some of the fit and 
polish of the original. It doesn't suffer from the scrolling issue because it 
doesn't provide a scrollbar. You may want to experiment with that approach. I 
find that it's also a good idea to make the server limit the number of 
suggestions, so you don't so much need to scroll at all.

https://gist.github.com/walterdavis/8294372

Walter

On Jan 6, 2014, at 8:12 PM, Andy Wallace wrote:

 I'm having an issue with IE11 and the autocompleter. It only shows up with 
 IE11, all other browsers (including other versions of IE) are working fine... 
 The problem is that, once the drop-down of selections appears, if you click 
 on the scrollbar in any way, it disappears. You can see it on this test site:
 
 http://cis-test--of-enom.com
 
 In the lower part of the photograph, you'll see City:. Type in the letter 
 a, or click on the down arrow, and the list appears. If you then click on 
 the scrollbar, the list disappears. Selecting from the list works, and if you 
 click on the scroll bar to scroll the list down, and then click on the down 
 arrow, the list reappears in the correct position.  There is a function 
 defined in the code hide:, which I have discovered is getting called.
 
 Version info:
 
 
 script.aculo.us controls.js v1.9.0
 
 prototype 1.7
 
 It's non-trivial to update my versions, so if there is an alternative, I'd 
 rather use that in the short run.
 
 
 
 Thanks,
 Andy
 
 awall...@cisdata.net
 
 
 
 
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[Proto-Scripty] Show of hands

[Walter Lee Davis]

It's been mighty quiet here, and I'm wondering if everyone just knows how to 
use Prototype, and doesn't have any questions, or if you've all defected to the 
Dark Side.

Happy New Year,

Walter

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Re: [Proto-Scripty] documentation server down???

[Walter Lee Davis]

Apparently. 

Walter

On Nov 6, 2013, at 12:09 PM, Worth Lutz wrote:

 I cannot get to :  http://api.prototypejs.org/
  
 Is the server down?
  
 Worth Luz
 
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Re: [Proto-Scripty] documentation server down???

[Walter Lee Davis]

I reached out to Sam Stephenson via Twitter, he has opened a ticket with 
Rackspace to fix this.

Walter

On Nov 6, 2013, at 12:25 PM, Walter Lee Davis wrote:

 Apparently. 
 
 Walter
 
 On Nov 6, 2013, at 12:09 PM, Worth Lutz wrote:
 
 I cannot get to :  http://api.prototypejs.org/
 
 Is the server down?
 
 Worth Luz
 
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Re: [Proto-Scripty] documentation server down???

[Walter Lee Davis]

Documentation is back!

Walter

On Nov 6, 2013, at 2:41 PM, Walter Lee Davis wrote:

 I reached out to Sam Stephenson via Twitter, he has opened a ticket with 
 Rackspace to fix this.
 
 Walter
 
 On Nov 6, 2013, at 12:25 PM, Walter Lee Davis wrote:
 
 Apparently. 
 
 Walter
 
 On Nov 6, 2013, at 12:09 PM, Worth Lutz wrote:
 
 I cannot get to :  http://api.prototypejs.org/
 
 Is the server down?
 
 Worth Luz
 
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Re: [Proto-Scripty] Scroll not working on mobile devices

[Walter Lee Davis]

Oh, I see. Yes, the Scriptaculous Control.Scrollbar does not respond to touch 
events. 

You have a couple of options. First, you could extend that control to map 
touchStart and touchEnd at different coordinates to be same as mouseDown and 
mouseUp at different coordinates. This is going to be fussy, because you also 
need to track whether the touch start/end resulted in the viewport moving or 
not. 

You could also use feature detection to turn off your custom scroll area and 
use CSS to turn on the one that the platform gives you natively. Of the two, 
that would be my personal choice.

Walter

On Aug 23, 2013, at 4:40 AM, Peter Gavrilov wrote:

 Sure thing,
 
 i have prepared the example:
 
 http://www.peteforpresident.cc/scroll
 
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Re: [Proto-Scripty] Error: Support for eval(code, scopeObject) has been removed. Use |with (scopeObject) eval(code);| instead.

[Walter Lee Davis]

Can you show an example where this fails? I just used this feature with 1.7.1, 
and you had me scared, so I just double-checked on the latest Firefox. I don't 
see any errors coming from evalScripts() there. Perhaps the issue is the type 
of function you are evaluating? Perhaps there is another level of indirection 
added outside the evalScripts method, and you don't need to provide it yourself 
as you have done.

Walter

On Aug 23, 2013, at 9:01 AM, javi68yt2 wrote:

 Hello all
 
 Please, excuseme my very bad English.
 
 I'm using a legacy version of prototype.js (1.4.0) and I cannot upgrade yet.
 
 Since I've upgraded FF to the last version (23.0 beta), my scripts fail with 
 above message when I issue:
 
 new Ajax.Updater(destiny, URL, {evalScripts: 'yes' });
 
 After googling a lot, I've fixed :
 
   evalScripts: function() {
 return this.extractScripts().map(eval);
   },
 
 like this:
 
   evalScripts: function() {
 return this.extractScripts().map(function(script) { with(this){ return 
 eval(script);} }); // function(script) came from v1.5.0, the rest is 
 suggested by FF
   },
 
 
 PS:
 Sorry for this naive solution or if it is fixed in some other place but in 
 last version of prototype.js (1.7.1) still remains:
 
   function evalScripts() {
 return this.extractScripts().map(function(script) { return eval(script); 
 });
   }
 
 Does this help someone else?
 Cheerio!


 
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Re: [Proto-Scripty] ajax call

[Walter Lee Davis]

If you are creating the form in the page after it loads, the observer has to be 
created after the form, in order to bind to that DOM object. The way around 
this is to use the on() function to register a deferred listener. I am on my 
phone, so I can't test this, but try this:

document.on('submit', '#myform', function(evt, elm){
  //your code here
});

Walter

On Jul 22, 2013, at 10:54 AM, Agnese Camellini agnese.camell...@gmail.com 
wrote:

 Hello, i'm writing a form which i have to process in javascript (ajax). The 
 problem is i probably read too many manuals online and offline so i have a 
 bit of confusion in mind i should sort out some way. The thing is that my 
 form is generated by a json file (i'm using Tornado, so i'm reading the json 
 file in python and passing it to the web page when rendered to build the 
 form).
 
 Now the form has to be processed by an ajax function and this is where it 
 gets tricky for me. i'm pasting the code written for now, there are two type 
 of ajax call written and i haven't tried to see if it work cause i'm not 
 undestanding what to do, so i've only tried to fill the variables written in 
 the examples online tring to undestand how it works.
 
 The code is here below:
 
 html
 head
 meta http-equiv=Content-Type content=text/html; charset=utf-8/
 link rel='stylesheet' type='text/css' href='/static/style.css'/
 script
 var lin={% raw line %}
 function str_to_obj(o){ 
 document.write('bodydiv id=up-bar/divdiv id=logoimg 
 class=logo src=/static/logo-admantx.png alt=logo/divform 
 id=myform action=/myform/ method=post')
 document.write('div id=myFormContainer')
 for(item in o.Form) {
 document.write(o.Form[item].Description + ' 
 brhrbr');
 for(i in o.Form[item].Response){
 document.write('label for=' + 
 o.Form[item].Response[i].Name + '');
 document.write('input type=radio 
 name=message' + item +' value=' + o.Form[item].Response[i].Name + '' + 
 o.Form[item].Response[i].Name + '/labelbr');
 };
 };
 document.write('input type=submit 
 value=Submit/div/form')
 };
 str_to_obj(lin);
 /script
 script type=text/javascript src=/static/prototype.js/script
 script
 _
   # First example
 Event.observe('myform', 'submit', function(event) {
 $('myform').request({
 onFailure: function() {  },#what should i write here?
 onSuccess: function(t) {
 $('myAdmantContainer').update(t.responseText);#where should i 
 set responseText?
 }
 });
 Event.stop(event); // stop the form from submitting
 });
 
 #second example
 function chiam-ajax() {
 var url = '/myform/';
 var pars = document.forms[0].message0.value + '' + 
 document.forms[0].message1.value ;
 var target = 'myAdmantContainer';
 var myAjax = new Ajax.Updater(target, url, {method: 'post', parameters: 
 pars});
 };
 
 /headdiv id=myAdmantContainer/div/body/html
 
 Does anyone have a vague idea of what to do?
 Agnese
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Re: [Proto-Scripty] addClassName and removeClassName don´t work

[Walter Lee Davis]

I
On Jul 17, 2013, at 3:37 PM, Joseph Lust wrote:

 Ran into this issue on Prototype 1.5.1 and IE8.

Is there a specific reason you are using such an old (years!) version of 
Prototype? 1.7.1 is current, and even it is getting a little long in the tooth.

 
 The error is in the array without() function in IE8. without() should return 
 an empty array if the array sans element is empty, or the array with that 
 element removed.
 
 In IE8, if there are no elements left in the array after the target element 
 is removed, undefined is returned, breaking anything chained after that.
 
   remove: function(classNameToRemove) {
 if (!this.include(classNameToRemove)) return;
 this.set($A(this).without(classNameToRemove).join(' '));
   },

Are you trying to get an array of classnames from an element, or are you trying 
to remove a class from an element? Because there's the Element#removeClassName 
if the latter. It does pretty much what you do here, except it returns an 
extended element, not an array of strings. You could get the former with this:


$(this).removeClassName(classNameToRemove).className.toString().split(/\s+/);

Walter

 
 The actual source was that without() internally uses each() to iterate across 
 the elements, but the DOMAssistant library have overwritten Element.each(). 
 The new version could not catch the breaks that are thrown by Prototype to 
 escape from deep nested iterators, and hence the error. Thus, the two libs 
 should not be used in conjunction. It seems that other browsers don't 
 overwrite the Element.each() method when loading the two libs like IE does.
 
 
 
 Sincerely,
 Joseph
 
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Re: [Proto-Scripty] addClassName and removeClassName don´t work

[Walter Lee Davis]

Wow. I wonder why it just this minute came up for moderation? That's Google 
Groups for you...

Walter

On Jul 17, 2013, at 4:12 PM, Jansen Nunes wrote:

 Hi
 
 My post is older(2010) and my project is finished now.
 Tks for all.
 
 Regards
 
 
 2013/7/17 Walter Lee Davis wa...@wdstudio.com:
 I
 On Jul 17, 2013, at 3:37 PM, Joseph Lust wrote:
 
 Ran into this issue on Prototype 1.5.1 and IE8.
 
 Is there a specific reason you are using such an old (years!) version of 
 Prototype? 1.7.1 is current, and even it is getting a little long in the 
 tooth.
 
 
 The error is in the array without() function in IE8. without() should 
 return an empty array if the array sans element is empty, or the array with 
 that element removed.
 
 In IE8, if there are no elements left in the array after the target element 
 is removed, undefined is returned, breaking anything chained after that.
 
  remove: function(classNameToRemove) {
if (!this.include(classNameToRemove)) return;
this.set($A(this).without(classNameToRemove).join(' '));
  },
 
 Are you trying to get an array of classnames from an element, or are you 
 trying to remove a class from an element? Because there's the 
 Element#removeClassName if the latter. It does pretty much what you do here, 
 except it returns an extended element, not an array of strings. You could 
 get the former with this:
 

 $(this).removeClassName(classNameToRemove).className.toString().split(/\s+/);
 
 Walter
 
 
 The actual source was that without() internally uses each() to iterate 
 across the elements, but the DOMAssistant library have overwritten 
 Element.each(). The new version could not catch the breaks that are thrown 
 by Prototype to escape from deep nested iterators, and hence the error. 
 Thus, the two libs should not be used in conjunction. It seems that other 
 browsers don't overwrite the Element.each() method when loading the two 
 libs like IE does.
 
 
 
 Sincerely,
 Joseph
 
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Re: [Proto-Scripty] Prototype Slider not sliding in IE8, 9 and 10

[Walter Lee Davis]

Looking at your code, I can think of a much simpler way to construct this form 
than using the slider control:

http://scripty.walterdavisstudio.com/color-picker.html

The same script could be extended to include your fading tooltips and pretty 
much all the rest of the UX I see here. It would have the further benefit that 
it would fall back and work without scripting -- all you'd need to do is hide 
the input[type=radio] elements with JavaScript rather than CSS.

Walter

On Jun 20, 2013, at 7:39 AM, kako...@gmail.com wrote:

 Hi i a using an example from 
 http://preview.moveable.com/jm/jameslab/superslider/ but where I have made 
 some changes to the layout and look, 
 http://webdev.brownsmart.co.uk/mwh/evaluate-yourself but it does not slide in 
 IE (all versions)
 
 I tried updating the versions of the Prototype.js and Scriptaculous.js which 
 allow customised version to show, (only changes have been in HTML CSS and 
 range values in the javascript) but it will not slide to the values, in IE 
 (all versions) 
 
 Has anyone come across this problem in previous use of Prototype.js and 
 Scriptaculous.js ?? 
 
 I think it has something to do with the use of multiple sliders, (going to 
 test my theory on this now) but any other suggestions would be helpful.
 
 Thanks.
 
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Re: [Proto-Scripty] Date and Time Picker Prototype JavaScript framework, version 1.6.0.2 (c) 2005-2008 Sam Stephenson

[Walter Lee Davis]

This list is for the Prototype JavaScript framework, not the Date Time picker 
itself. Can you post a link to the picker code? Someone here may be able to 
help you with your specific query.

Walter

On Jun 17, 2013, at 6:16 AM, Carmela Ward wrote:

 I want to stop future time selection when a user picks the time
 eg today is 17/6/13 and time is 6.00am I need to stop the selection of 
 17/6/13 6.01am or any time after that.
 Note I am only using the time picker in my form
  
 Would appreciate any help you can give me
 Kind Regards
 
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Re: [Proto-Scripty] Uhh... is this a bug?

[Walter Lee Davis]

On Jun 9, 2013, at 12:59 PM, Phil Petree wrote:

 This just seems really, really odd... THATS where they decide to draw the 
 line? LOL

I believe this architectural decision was made at a time in history when 
introspecting the CSS cascade to discover if an element was actually visible at 
the moment was really slow in JavaScript, or really complex from a 
cross-browser perspective. 

There is also the legacy of Rails' RJS system to consider here. (I've been on 
this list long enough to remember when it was called rubyonrails-spinoffs or 
something like that.) A lot of the core assumptions of this library have their 
basis in how Rails 1.x decided Web2.0 should look and behave. 

I don't know the exact source of this decision, but I have had it cited as 
gospel to me in the past. Just kicking that can down the road...

Walter

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Re: [Proto-Scripty] Function.bind() performance vs native

[Walter Lee Davis]

I believe that the plan all along w/r/t these new JS-core features has been to 
prefer the native implementation where available and compatible, and leave the 
Prototype method as a polyfill for older browsers. I don't believe that 
Prototype currently behaves this way, but the last time I heard anything 
official on this list about the future of Prototype, that was one of the 
things mentioned. 

BTW, what browser were you using when you tested this? In Safari.latest Mac OS 
X, I see Prototype winning, and native 17% slower.

Walter

On Jun 3, 2013, at 5:44 PM, Jason wrote:

 
 ECMA 5 introduced Function.prototype.bind() which is similar to the 
 PrototypeJS version that binds the context to the function. In a class scope 
 you can bind the this variable in the function scope to the this of the 
 class.
 
 Here is a performance test between those 2
 
 http://jsperf.com/native-function-bind-versus-prototype-js
 
 Higher numbers are better as that is the number of operations per second and 
 the native bind() method is higher?
 
 Anyone have any insight?
 
 Thanks all!
 
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Re: [Proto-Scripty] Help system

[Walter Lee Davis]

This would be pretty easy to do. Prototype gives you lots of tools to make this 
possible, the bulk of this effort would probably go into the CSS to style your 
tooltips.

On May 30, 2013, at 11:30 AM, Phil Petree wrote:

 Has anyone developed an inline help system?  Am I barking up the wrong tree 
 or is there an easier way to do this?
  
 Ideally we could just drop the div in anywhere we wanted, the help icon would 
 always float to the right of the label/input and when the user clicked the 
 help icon we'd get a context sensitive help solution.
  
 I was thinking of something that could be built off a div like this:
  
 prototype:
 document.observe(dom:loaded, function() {
 $$('div.help').each(function(item) {
 item.observe('onclick', function() {

This would be item.observe('click' ... you never use the 'on' part in 
Element/Event.observe.

// get items id

item.id or item.readAttribute('id')

// use ajax call to get help info from server
// populate div
// apply pop-up class

new Ajax.Updater('theDivId', '/url/to/help/system', {
parameters: {id: theIdYouGotAbove},
onSuccess: function(){
item.addClassName('tooltip');
}
});

// set handler to process dismiss click () {
// delete context help
// restore help class
};

document.on('click', 'div.tooltip', function(evt, elm){
elm.update().removeClassName('tooltip');
});


The on handler is really helpful, it can manage elements that weren't in 
place when the page loaded. One handler to rule them all, not a separate 
handler per tooltip.

});
 });
 });
  
 html:
 div class='help' id='topic'/div
  
 css:
 .help {?}
 .popup-help {?}
 .icon-help {background: #fff url(images/icons/help_32x32.png) top left 
 no-repeat;}

Hope this helps,

Walter

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Re: [Proto-Scripty] Help system

[Walter Lee Davis]

I think you could make the whole thing pretty simply. Rather than creating a 
separate handler (with each()) for each .help element, you could wrap the 
entire thing in one on handler, which you would not need to customize per 
page or worry about dom:loaded or anything:

document.on('click', '.help', function(evt, elm){
  var tip = elm.down('div');
  new Ajax.Updater(tip, 'path/to/help', {
parameters: {id: elm.id},
onCreate: function(){
  tip.addClassName('loading');
},
onSuccess: function(){
  tip.removeClassName('loading');
  tip.addClassName('tooltip');
}
  });
});

document.on('click', '.tooltip', function(evt, elm){
  evt.stop();
  elm.update().removeClassName('tooltip');
});

That's expecting a structure like this:

div class=help id=widget_1div/div/div

You could use some other construction if you like, but that would do the trick. 
The rest will be creating the CSS for the tooltip, and the Web service to fill 
it in.

If you didn't want to get the Ajax thing going, you could also just put the 
tooltip in the help element itself, maybe in a data-attribute. That depends on 
how much content there would be. It would be completely instantaneous.

Walter

On May 30, 2013, at 2:24 PM, Phil Petree wrote:

 I'll play around with it on Sunday and see what I can cobble together... of 
 course it looks like you did most of the work in 5 minutes and I'll spend 
 most of the day playing around with it! LOL

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Re: [Proto-Scripty] finding all tr's within a div

[Walter Lee Davis]

On May 17, 2013, at 12:19 PM, Phil Petree wrote:

 I'm expanding the table row highlighting ya'll helped me with before.  Now I 
 have two tables on a page and each table has rows that I want to highlight on 
 mouseover.
  
 Can't give the tables the same id so what I was doing was creating a div with 
 a class:
  
 table class='blah' id='blah' ...
 trthCol 1/thth col 2/th/tr
 div class='row_highlight'
 trtdData 1/tdtdData 2/td/tr
 trtdData 1/tdtdData 2/td/tr
 trtdData 1/tdtdData 2/td/tr
 /div
 /table
  
 In prototype I'm trying:
   $$('div.row_highlight tr').each(function(item) {
   item.observe('mouseover', function() {
   item.addClassName('over');
   });
   item.observe('mouseout', function() {
   item.removeClassName('over');
   });
   });
 $$ is returning null... not even getting to the item.observe
  
 Obviously, I'm doing something wrong here... googled around and most people 
 seem to be doing it the way I am...  what am I missing?

You can't nest a div inside a table like this. JavaScript (not just Prototype) 
has no tolerance for malformed HTML. Browsers handle it perfectly (for certain 
definitions of perfectly) but scripts rely on you getting the HTML right before 
you start horsing around with the DOM.

The simplest way to do what you're describing here is to make your HTML valid, 
and add a new set of valid tags that you're not currently using: thead and 
tbody.

table class=row_highlight
  thead
tr
  thHead one/ththHead two/th
/tr
  /thead
tbody
tr
  tdCol one/tdtdCol two/td
/tr
... many more rows here ...
/tbody
/table

Now, all you need to get the table rows to highlight is this:

$$('.row_highlight tbody tr').each(function(item){
  ... your code here ...
});

See how that works?

Walter

  
 
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Re: [Proto-Scripty] Draggables inside div with overflow:scroll

[Walter Lee Davis]

On May 7, 2013, at 7:30 AM, ayson...@gmail.com wrote:

 I have created two divs. One is for draggable objects. Another for the area 
 where they should be dropped.
 The both divs should have the same height and if there are large number of 
 draggables to have scrollbar.
 
 When I add overflow: scroll to the div with draggable objects, then 
 drag-and-drop functionality is screwed up.
 Please see an example here http://jsfiddle.net/nB8PC/1/
 To reproduce my issue just enable overflow:scroll in CSS window (upper right, 
 it is commented out) and run the script again.
 
 Is there any solution for it?

I have fixed this in the past by making the overflow property on a parent 
element (letting the draggable element itself be scrolled in its entirety 
within that parent).

Walter

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Re: [Proto-Scripty] Newbie using Ajax.Request to perl script - script works but continues to return 500 status

[Walter Lee Davis]

On Apr 30, 2013, at 3:02 PM, joz...@sonic.net wrote:

 Hello to all,
 
 This is my code and the call does complete and the back end perl script 
 updates the database but I continue to get a onFailure - not sure how to 
 troubleshoot this.  I have changed method to post and it works for a bit then 
 begins to fail again.  At present it is failing with 500 every time but the 
 actual code being called is working perfectly.
 
 Thanks any and everyone who can give me a bit of guidance 
 
 function get_update_odometer(vehicle_key,odometer_value){
 var url = 
 [%Catalyst.uri_for('/invoice/dispatch_util/get_update_odometer')%];
 new Ajax.Request(url, {
 method: 'get',
 parameters: {
key: vehicle_key,
ovalue: odometer_value
},
 asynchronous:false,
 onSuccess: successFunc,
 onFailure:  failureFunc
});
 var return_v  =  $('rcontainer').innerHTML;
 document.getElementById('odometer').value = return_v;
 return true;
 }
 
 
 
 function successFunc(response){
 if (200 == response.status){
   var container = $('rcontainer');
   var content = response.responseText;
   container.update(content);
 }
 }
 
 function failureFunc(response){
 alert(Call has failed  + response.status );
 }
 

I'm not familiar with Catalyst, but is it setting a 200 header or similar with 
your return? You may want to emit a couple of spaces or similar, just to force 
the issue. 

Walter

 
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Re: [Proto-Scripty] Prototype in no conflict mode

[Walter Lee Davis]

On Apr 29, 2013, at 8:54 AM, Alastair Young alastair.yo...@gmail.com wrote:

 I need to move my code (Prototype 1.7.1) into someone else's much larger 
 project using jQuery v1.5.1.
 
 Can I load Prototype in no-conflict mode ? I can't change any of the jQuery 
 stuff.

Not as far as I know. The issue as I understand it is that Prototype extends 
the (lower-case) prototype of a number of JS primitives, and these extensions 
are an issue for jquery, over and above the simple name collision between $ in 
both libraries. Can you modify the HTML? You may be able to inject the jquery 
noConflict() function call in between the link to jquery and the subsequent 
links to various scripts and plugins that rely on it. That still won't fix 
things if those scripts are written in a style that doesn't expect to be in the 
presence of noConflict, though.

Walter

 
 Thanks
 
 -alastair
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Re: [Proto-Scripty] Prototype in no conflict mode

[Walter Lee Davis]

On Apr 29, 2013, at 9:22 AM, Alastair Young alastair.yo...@gmail.com wrote:

 I can't modify the HTML - I fear my only solution is port all my code to 
 jQuery 
 

Before you do that, try this. Download a copy of the prototype source cod 
locally, and use find-and-replace to substitute another character, like the 
underscore, for $. Do the same in a fork of your code. See if that does 
anything useful. It may. 

Walter 


 
 On 29 April 2013 17:05, Walter Lee Davis wa...@wdstudio.com wrote:
 
 
 On Apr 29, 2013, at 8:54 AM, Alastair Young alastair.yo...@gmail.com wrote:
 
 I need to move my code (Prototype 1.7.1) into someone else's much larger 
 project using jQuery v1.5.1.
 
 Can I load Prototype in no-conflict mode ? I can't change any of the jQuery 
 stuff.
 
 Not as far as I know. The issue as I understand it is that Prototype extends 
 the (lower-case) prototype of a number of JS primitives, and these 
 extensions are an issue for jquery, over and above the simple name collision 
 between $ in both libraries. Can you modify the HTML? You may be able to 
 inject the jquery noConflict() function call in between the link to jquery 
 and the subsequent links to various scripts and plugins that rely on it. 
 That still won't fix things if those scripts are written in a style that 
 doesn't expect to be in the presence of noConflict, though.
 
 Walter
 
 
 Thanks
 
 -alastair
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Re: [Proto-Scripty] Prototype in no conflict mode

[Walter Lee Davis]

On Apr 29, 2013, at 9:34 AM, Alastair Young alastair.yo...@gmail.com wrote:

 What if I ran my stuff in a frame - would jquery still conflict if it's 
 loaded in the topmost frame?

I was going to suggest that as an option, but I didn't know if you shared my 
disdain for I frames or not. 

Walter

 
 
 On 29 April 2013 17:28, Walter Lee Davis wa...@wdstudio.com wrote:
 
 
 On Apr 29, 2013, at 9:22 AM, Alastair Young alastair.yo...@gmail.com wrote:
 
 I can't modify the HTML - I fear my only solution is port all my code to 
 jQuery 
 
 Before you do that, try this. Download a copy of the prototype source cod 
 locally, and use find-and-replace to substitute another character, like the 
 underscore, for $. Do the same in a fork of your code. See if that does 
 anything useful. It may. 
 
 Walter 
 
 
 
 On 29 April 2013 17:05, Walter Lee Davis wa...@wdstudio.com wrote:
 
 
 On Apr 29, 2013, at 8:54 AM, Alastair Young alastair.yo...@gmail.com 
 wrote:
 
 I need to move my code (Prototype 1.7.1) into someone else's much larger 
 project using jQuery v1.5.1.
 
 Can I load Prototype in no-conflict mode ? I can't change any of the 
 jQuery stuff.
 
 Not as far as I know. The issue as I understand it is that Prototype 
 extends the (lower-case) prototype of a number of JS primitives, and these 
 extensions are an issue for jquery, over and above the simple name 
 collision between $ in both libraries. Can you modify the HTML? You may be 
 able to inject the jquery noConflict() function call in between the link 
 to jquery and the subsequent links to various scripts and plugins that 
 rely on it. That still won't fix things if those scripts are written in a 
 style that doesn't expect to be in the presence of noConflict, though.
 
 Walter
 
 
 Thanks
 
 -alastair
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Re: [Proto-Scripty] Unterminated string constant whens tring contains a trailing dot

[Walter Lee Davis]

On Apr 22, 2013, at 3:04 AM, Cardinal wrote:

 Unfortunately i can't provide a live demo as i am talking about a plugin for 
 Novell / NetIQs iManager.
 
 Attached please find the SelectEntity.jsp file and some of its includes.
 


Try this: get into the browser where you see the problem on a live server, and 
view source (actual source, not the DOM). Copy that entire source view. Paste 
it into the validator at http://validator.w3.org and see if there are any 
errors. Remember, browsers are endlessly forgiving by design. JavaScript is 
easily confused. Sometimes the entire problem can be fixed by making the HTML 
valid.

Next, paste that source into a new text file.html. View that in a new browser 
window, make sure it is working up to the point of failing (so no missing 
resources or any bad paths). Satisfy all missing paths with local copies. Cut 
the page down to only show the problem, and post it somewhere public so we can 
look at it in our browsers. If the error requires an Ajax call to demonstrate, 
then stub that out with a static endpoint and dummy test data. Be sure to 
duplicate the same reply that is borking your page if that is the moment that 
it fails.

I don't have a JSP container running here, haven't used one since the '90s. 
Without a live example, all we can do is wave our moist fingers in the air and 
try to guess which way the wind is blowing. The other benefit of this exercise 
is that very often (high 80% of the time) you will find the problem in the 
process of duplicating it in a static file.

Walter

  
 
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 SelectEntity.jspmandator.jsOS_inc.jspOSFooter_inc.jspcvFooter.inc.jsp

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Re: [Proto-Scripty] Unterminated string constant whens tring contains a trailing dot

[Walter Lee Davis]

On Apr 20, 2013, at 6:19 AM, Cardinal wrote:

 Hi all,
 when i'm including prototype into a JSP, IE throws the error Unterminated 
 string constant when i open a popup window which contains strings with a 
 trailing dot.
 
 Basically, it's a list of usernames in the format
 
 user1.data
 user2.data
 
 As soon as this list contains a value like
 
 users2.data.system.
 
 I will get the unterminated string contant error. This error only appears 
 when im including prototype (1.6.1 or 1.7.1), even if i don't need it for 
 this particular popu-window (but for other elemts of the site).
 That means the popup is working without errors when im not using prototype. 
 
 I assume that there is some type of escape functiality or so which collidates 
 with my popup.

Could you please show some code around this error, or a live example? It's hard 
to imagine what the issue might be without something to trace through.

Walter

 
 Any help would be appreciated.
 Unfortunately i cant give you a link to reproduce that as im running the web 
 server on a local virtual machine.
 
 Thank you and sorry for my bad english :-)
 
 
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Re: [Proto-Scripty] Unterminated string constant whens tring contains a trailing dot

[Walter Lee Davis]

Just read this part. Please try to make a cut-down example in a static page 
that duplicates the error. Often this exercise will either bring 
dependencies/alternate causes to light, or it will force you to think through 
the problem in a new way.

Walter

On Apr 20, 2013, at 6:19 AM, Cardinal wrote:

 Unfortunately i cant give you a link to reproduce that as im running the web 
 server on a local virtual machine.

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Re: [Proto-Scripty] Prototype.Selector is undefined

[Walter Lee Davis]

On Apr 8, 2013, at 8:22 AM, m...@travelmarket.com wrote:

 Hi guys
 
 I am getting this error on a project I've inherited from a colleague now on 
 maternity leave.
 
 Prototype.Selector is undefined
 
 I have absolutely no clue as to what is causing this and how I go about 
 debugging it - anyone have any helpful hints or tips?
 
 Thanks a bunch


What version of Prototype are you using? Can you post a link or a cut-down 
example that duplicates this message? Is this coming from within Prototype, or 
from a script that depends on it?

Walter


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Re: [Proto-Scripty] color swatch selector

[Walter Lee Davis]

With as few choices as you have, I would be tempted to add them as a field of 
radio buttons, and use CSS to replace the buttons with color swatches directly. 
No need for any JavaScript at all.

label class=swatchimg src=red.png alt=red /input type=radio 
name=color value=red //label
...

label.swatch { display: inline-block; height: 20px; width: 20px; }
label.swatch input { display: none; }

Where you might need to break out the Prototype is to decorate the chosen 
element, can't think of how to do that in CSS off the top of my head.

$$('input[name=color]').each(function(elm){ 
if(elm.checked){
elm.previous('img').addClassName('selected');
}else{
elm.previous('img').removeClassName('selected');
}
});

Walter

On Mar 21, 2013, at 6:32 AM, Phil Petree wrote:

 Morning Walter...
  
 That was the approach I took last night... it works but its just not as 
 attractive as I'd like... still seems like their should be a more stylish way.
  
 I may just opt for something like the color selector used on a number of 
 clothing sites... like this one: 
 http://www.brooksbrothers.com/mens/polos-knits/0298,default,sc.html?lid=leftnav-menu
  
 Basically they just put color swatch/squares in a row and allow you to 
 mouseover to see the effects and a click selects that color.
 On Thu, Mar 21, 2013 at 12:05 AM, Walter Lee Davis wa...@wdstudio.com wrote:
 I think you're going to need to update a swatch next to the picker, maybe. 
 The select is remarkably styling-resistant in Safari, probably Chrome as 
 well. I would absolutely position a little dot off to the left of the select, 
 and update its background color on the change event of the select.
 
 Walter
 
 On Mar 20, 2013, at 3:12 PM, Phil Petree wrote:
 
  I want users to be able to pick from one of 6 colors for a folder (like a 
  file folder).
 
  At first I thought about doing this as a selectoption value='color_blue' 
  style='background-image: url(blue.png);'/option
 
  But I'm discovering this will really only render well in firefox...
 
  Has anyone discovered how to do this using proto/scripty?
 
  Thanks
 
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Re: [Proto-Scripty] color swatch selector

[Walter Lee Davis]

Really? Can you show an example? I don't think the label.swatch itself gets a 
:checked pseudo-class, it's the input inside it that gets checked. While you 
can find the :checked checkbox, you can't style upward like that to access the 
parent label (really wish you could).

Walter

On Mar 21, 2013, at 1:57 PM, Jason Westbrook wrote:

 For the CSS for the radio buttons use the pseudo class  label.swatch:checked
 

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Re: [Proto-Scripty] color swatch selector

[Walter Lee Davis]

Here's what I was thinking of:

http://scripty.walterdavisstudio.com/color-picker.html

Walter

On Mar 21, 2013, at 2:40 PM, Walter Lee Davis wrote:

 Really? Can you show an example? I don't think the label.swatch itself gets a 
 :checked pseudo-class, it's the input inside it that gets checked. While you 
 can find the :checked checkbox, you can't style upward like that to access 
 the parent label (really wish you could).
 
 Walter
 
 On Mar 21, 2013, at 1:57 PM, Jason Westbrook wrote:
 
 For the CSS for the radio buttons use the pseudo class  label.swatch:checked
 
 
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Re: [Proto-Scripty] color swatch selector

[Walter Lee Davis]

I think you're going to need to update a swatch next to the picker, maybe. The 
select is remarkably styling-resistant in Safari, probably Chrome as well. I 
would absolutely position a little dot off to the left of the select, and 
update its background color on the change event of the select.

Walter

On Mar 20, 2013, at 3:12 PM, Phil Petree wrote:

 I want users to be able to pick from one of 6 colors for a folder (like a 
 file folder).
  
 At first I thought about doing this as a selectoption value='color_blue' 
 style='background-image: url(blue.png);'/option
  
 But I'm discovering this will really only render well in firefox...
  
 Has anyone discovered how to do this using proto/scripty?
  
 Thanks
 
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Re: [Proto-Scripty] Error help needed : Prototype is not defined

[Walter Lee Davis]

What does your page head look like? Can we see a link? Prototype needs to be 
linked before scriptaculous in the head of your page, that's what this error 
puts me in mind of.

Walter

On Mar 19, 2013, at 2:57 PM, Andy wrote:

 Hi all,
 
 I am having an error with the script.
 
 ReferenceError: Prototype is not defined
 ./js/effects.js
 Line 73
 
 The line is 
 
 linear: Prototype.K, 
 
 Any assistance would be greatly appreciated. 
 
 Thank you 
 
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Re: [Proto-Scripty] AutoComplete

[Walter Lee Davis]

Please file an issue on Scriptaculous, then. Scripty 1 should stay in step with 
Prototype!

Walter

On Mar 14, 2013, at 11:34 AM, Miguel Beltran R. wrote:

 I fixed it :D
 
 #Walter 
 
 The problem were here
 var pos = Position.cumulativeOffset(this.input);
 pos.push(pos[0] + this.input.offsetWidth);  -- HERE STOP
 In 1.7, the cumulativeOffset function return a Object {top:x, left:y} when in 
 1.6 returned an array, howerver the object has the toArray function , so I 
 changed it to
 var pos = Position.cumulativeOffset(this.input).toArray();
 
 
 #Jason
 I have checked Script2 but no Script1, the version 2 of autocomplete don't 
 like me.
 
 
 2013/3/13 Walter Lee Davis wa...@wdstudio.com
 What do you see in Firebug or Web Inspector's console? Can you please post an 
 example showing your work so far? We will be happy to help, but without 
 setting up a demo locally, it's going to be difficult for us to divine 
 exactly where the problem is.
 
 Walter
 
 On Mar 13, 2013, at 3:18 PM, Miguel Beltran R. wrote:
 
  Hello List!!!
 
  I have tried to use AutoComplete 1.2 (1) but it is not working with 
  prototype 1.7.
 
  someone know another working library?or tell how fix it
 
  The problem that I have is with the position, using Firebug for debug
  _reposition: function()
  {
  if(!this.drawn) return;
  var pos = Position.cumulativeOffset(this.input);
  pos.push(pos[0] + this.input.offsetWidth);  -- HERE STOP
  pos.push(pos[1] + this.input.offsetHeight);
  Element.setStyle(this.selector,{
  left: pos[0] + 'px',
  top: pos[3] + 'px'
  });
  },
 
 
  (1) http://www.beauscott.com/examples/autocomplete/doc/ns_examples.html
 
  --
  
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  es saber que nos queda un dia menos de vida
 
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Re: [Proto-Scripty] .morph has stopped working - it now says Object [object Object] has no method 'morph'

[Walter Lee Davis]

On Mar 14, 2013, at 7:58 AM, Gretsch wrote:

 My code used to work, but now the .morph no longer works - in the chrome 
 console it says:
 Uncaught TypeError: Object [object Object] has no method 'morph' 
  
 The code includes the following:
 link 
 href=https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/scriptaculous.js;
  /
 script type=text/javascript 
 src=http://script.aculo.us/prototype.js;/script
 script type=text/javascript 
 src=http://script.aculo.us/scriptaculous.js;/script
 But when I look at the code using Chrome 'Elements' pane it shows:
 link 
 href=https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/scriptaculous.js;
 script 
 src=https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en.iRGda-ATQBk.O/m=plusone/am=QQ/rt=j/d=1/rs=AItRSTMWXweuF4qvyKvRjzAhTggmGqAPyA/cb=gapi.loaded_0;
  async=/script
 script type=text/javascript async= 
 src=https://apis.google.com/js/plusone.js; gapi_processed=true/script
 script id=twitter-wjs src=//platform.twitter.com/widgets.js/script
 script type=text/javascript 
 src=http://script.aculo.us/prototype.js;/script
 script type=text/javascript 
 src=http://script.aculo.us/scriptaculous.js;/script
 script type=text/javascript 
 src=http://script.aculo.us/builder.js;/script
 ...
 script type=text/javascript src=http://script.aculo.us/sound.js;/script
  
 Can someone tell me where the extra lines come from  e.g.:
 script 
 src=https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en.iRGda-ATQBk.O/m=plusone/am=QQ/rt=j/d=1/rs=AItRSTMWXweuF4qvyKvRjzAhTggmGqAPyA/cb=gapi.loaded_0;
  async=/script
 and if this/something else is causing the problem.
  
 The working code can be seen at:
 http://www.alanarnoldguitars.co.uk/guitar_woods.htm   (but the code is 
 compressed)
 and the version where the 'minimise' button doesnt work is currently at:
 http://www.alanarnoldguitars.co.uk/guitar_woods_UNCOMPRESSED.htm

You have a couple of errors right away on page load, before we even get into 
the rest of this:

guitar_woods_UNCOMPRESSED.htm:20
SyntaxError: Unexpected token ''
prototype.js:5733
TypeError: 'undefined' is not a function (evaluating 
'element.dispatchEvent(event)')

See if you can get the first one fixed, because the second one is Prototype 
reacting badly to what it is given, and is highly unlikely to be an actual 
error in the Prototype code itself. 

JavaScript errors tend to trickle down, and one can hide another. Also try 
multiple debuggers -- this is from Safari Web Inspector, but do try Firebug too.

Walter

  
 Thanks
  
  
  
 
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Re: [Proto-Scripty] AutoComplete

[Walter Lee Davis]

What do you see in Firebug or Web Inspector's console? Can you please post an 
example showing your work so far? We will be happy to help, but without setting 
up a demo locally, it's going to be difficult for us to divine exactly where 
the problem is.

Walter

On Mar 13, 2013, at 3:18 PM, Miguel Beltran R. wrote:

 Hello List!!!
 
 I have tried to use AutoComplete 1.2 (1) but it is not working with prototype 
 1.7.
 
 someone know another working library?or tell how fix it
 
 The problem that I have is with the position, using Firebug for debug
 _reposition: function()
 {
 if(!this.drawn) return;
 var pos = Position.cumulativeOffset(this.input);
 pos.push(pos[0] + this.input.offsetWidth);  -- HERE STOP
 pos.push(pos[1] + this.input.offsetHeight);
 Element.setStyle(this.selector,{
 left: pos[0] + 'px',
 top: pos[3] + 'px'
 });
 },
 
 
 (1) http://www.beauscott.com/examples/autocomplete/doc/ns_examples.html
 
 -- 
 
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 es saber que nos queda un dia menos de vida
 
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[Proto-Scripty] Element.setValue() doesn't work with the output tag

[Walter Lee Davis]

Have a fiddle: http://jsfiddle.net/ZYDjc/

Any thoughts? Should I raise a ticket?

Thanks,

Walter

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Re: [Proto-Scripty] Copying border styles: a tale of two browsers

[Walter Lee Davis]

On Mar 1, 2013, at 8:09 PM, Jason Westbrook wrote:

 
 I'm using OSX Chrome and it does it correctly as does Safari

Really? What version? It didn't work for me in 17.0.963.83. I see that there's 
an update available from there, but I get an error when I try to update -- 
Update server not available. Strange, given that it's Google's server...

 
 .getStyle() either uses the inline style via the .style property of the DOM 
 object

The issue seems to be that you can't use the fully composed shortcut to set the 
DOM (and according to the W3C, that's the spec). You can only manipulate the 
decomposed attributes. Doesn't explain why Safari lets you do it. It seems to 
coalesce all styles to their more fully composed form internally -- if you try 
my example again and watch the element in the Web Inspector, you will see that 
whether you set two.setStyle('border) with the Copy Border Style link, or loop 
through all of the decomposed parts of that style attribute with Copy Border 
Style With Crazy Long-ass Work-around, the DOM reads border: 10px solid 
rgb(102, 102, 102); 

 
 if that is not set then it tries to use
 
 document.defaultView.getComputedStyle(element, null) which is returning 
 nothing for the border property
 
 have you tried to use 
 http://api.prototypejs.org/dom/Element/prototype/getLayout/  ?

Thanks, this would get me the width of the border, but I'm actually trying to 
capture the entire border style. Here's what I ended up with for now:

$('copy2').observe('click', function(evt){
  var one = $('one'), two = $('two');
  $w('top right bottom left').each(function(side){
$w('color width style').each(function(mode){
  var key = 'border-' + side + '-' + mode
  var val = one.getStyle(key);
  two.setStyle(key + ':' + val);
});
  });
});

I discovered in the process that setting these attributes with their 
camel-cased key names didn't seem to work, while using the hyphenated forms 
worked fine. I could set a single camel-case variable at a time, long-hand, but 
inside my nested loop, I was only able to use the hyphenated form. I still 
haven't figured out why that happened. It appears as though setStyle({key: 
val}) is not equivalent to setStyle('key: val') in some cases.

Thanks for looking at this,

Walter

 
 Jason Westbrook | T: 313-799-3770 | jwestbr...@gmail.com
 
 
 On Fri, Mar 1, 2013 at 4:42 PM, Walter Lee Davis wa...@wdstudio.com wrote:
 Try this example in Safari, Chrome, and Firefox, latest versions. Please let 
 me know what you see.
 
 http://scripty.walterdavisstudio.com/copy-style-fail.html
 
 Safari gets it right, Firefox and Chrome do not, and I'm baffled.
 
 Digging into the issue in Firebug, it appears as though 
 defaultView.getComputedStyle is only populating the fully-decomposed border 
 properties: border-left-color, border-left-width, etc. None of the 
 intermediate shortcut attributes have any value assigned to them at all.
 
 Any suggestions?
 
 Thanks,
 
 Walter
 
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[Proto-Scripty] Copying border styles: a tale of two browsers

[Walter Lee Davis]

Try this example in Safari, Chrome, and Firefox, latest versions. Please let me 
know what you see.

http://scripty.walterdavisstudio.com/copy-style-fail.html

Safari gets it right, Firefox and Chrome do not, and I'm baffled.

Digging into the issue in Firebug, it appears as though 
defaultView.getComputedStyle is only populating the fully-decomposed border 
properties: border-left-color, border-left-width, etc. None of the intermediate 
shortcut attributes have any value assigned to them at all.

Any suggestions?

Thanks,

Walter

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Re: [Proto-Scripty] scripty inplace editor

[Walter Lee Davis]

On Jan 27, 2013, at 4:10 PM, Phil Petree wrote:

 Hi All!
  
 I'm implementing the scriptaculous inplace editor and I have it working 
 except for one small detail:
  
 If I activate the editor, click cancel, activate the editor again I get two 
 inplace editors.  cancel those and activate again and I get three.  cancel 
 those and activate again and I get four... and on and on and on...
  
 What's the trick to this?  Here's my code:
  
 html:
 trtd onclick='editName(this, id)'Homer Simpson/td/tr
  
 javascript:
 function editName(element, id)
 {
   new Ajax.InPlaceEditor(element, 'name_inpl_ajax.php', { 
   okText:  Save ,
   cancelControl: button,
   callback: function(form, value) {
   return 'id=' +id + 'name='+encodeURIComponent(value)
   }
   });
 }
 

This editor isn't behaving as documented lately, I had an occasion to upgrade a 
working editor to the latest versions of Prototype and Scriptaculous, and found 
that clicking to edit the second time would cause the editor to load the 
editing form itself for editing. Not a good time for my client!

You might want to look at this option:

 Removing the behavior
 To disable the InPlaceEditor behavior later on, store it in a variable like:
 
 var editor = new Ajax.InPlaceEditor('product_1'
 ,...);
  (... 
 do
  stuff ..)
  editor.dispose();
 
 This way, you can enable and disable  In Place Editing 
 :http://madrobby.github.com/scriptaculous/in-place-editing at will.
 

See if that can work around the issue for you.

Walter

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Re: [Proto-Scripty] Toggle opacity

[Walter Lee Davis]

On Jan 23, 2013, at 7:48 AM, Köd wrote:

 Hi guys
 
 To get a full view of my problem, please read: 
 http://stackoverflow.com/questions/14478903/script-aculo-us-toggle-appear-on-multiple-divs
 _
 
 I have a simple question to ask you:
 Is it possible to use effect.opacity as a toggle effect?
 
 The reason why I'm asking this is because when using effect.opacity the 
 assigned function can be spammed, hence making the div appear/fade over and 
 over. I was thinking that it might would be possible to do so by changing 
 something in the scriptaculous.js or effects.js file.
 
 
 If this is not possible, I would like to ask how you can use Effect.Toggle 
 (appear) on multiple div's within an a href containing an onclick. An 
 example:
 
 lia href=# onclick=Effect.toggle('DIV1, DIV2, DIV3', 'appear'); return 
 false;/a

It's going to be really hard to do this inline (I suppose it's possible, but 
not very readable) but if you create an observer function, then there should be 
a way to do this:

var toggleMyItems = function(items){
$w(items).each(function(elm){
var elm = $(elm);
if(elm  ! elm.animating){
elm['animating'] = true;
Effect.toggle(
elm, 
'appear', {
afterFinish: function(){
elm.animating = false;
}
}
);
}
});
});

Then you could call that from inline:
a href=# rel=DIV1 DIV2 DIV3 onclick=toggleMyItems(this.rel); return 
false;Howdy/a

Or better, observe the click and do it elsewhere (separation of concerns):

document.on('click', 'a.multi', function(evt, elm){
evt.stop();
toggleMyItems(elm.rel);
});

a href=# class=multi rel=DIV1 DIV2 DIV3Howdy/a

Walter

 
 Thanks.
 
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Re: [Proto-Scripty] Toggle opacity

[Walter Lee Davis]

Could you please post your solution? I thought Effect.multiple was for applying 
different functions to the same element, not the other way round...

Walter

On Jan 23, 2013, at 11:28 AM, Köd wrote:

 Guys!
 
 It works! I don't know what was wrong with my code before - but I made the 
 Effect.Multiple work, thanks for your guidance! Weee, now I can continue 
 being happy :D
 
 Den onsdag den 23. januar 2013 13.48.43 UTC+1 skrev Köd:
 Hi guys
 
 To get a full view of my problem, please read: 
 http://stackoverflow.com/questions/14478903/script-aculo-us-toggle-appear-on-multiple-divs
 _
 
 I have a simple question to ask you:
 Is it possible to use effect.opacity as a toggle effect?
 
 The reason why I'm asking this is because when using effect.opacity the 
 assigned function can be spammed, hence making the div appear/fade over and 
 over. I was thinking that it might would be possible to do so by changing 
 something in the scriptaculous.js or effects.js file.
 
 
 If this is not possible, I would like to ask how you can use Effect.Toggle 
 (appear) on multiple div's within an a href containing an onclick. An 
 example:
 
 lia href=# onclick=Effect.toggle('DIV1, DIV2, DIV3', 'appear'); return 
 false;/a
 
 Thanks.
 
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Re: [Proto-Scripty] Set Opacity with no effect

[Walter Lee Davis]

$('myElementId').setOpacity(1);

On Jan 21, 2013, at 12:43 PM, kstubs wrote:

 Whats the most straightforward means of setting opacity on a layer without 
 any effects?  I just need the layer to be opaque.
 
 Thanks,
 Karl..
 
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Re: [Proto-Scripty] Ajax CORS error message

[Walter Lee Davis]

Maybe you also have to fiddle with the accept header? I've been having the same 
error for weeks in Safari, and on a straight get request to a CORS-enabled S3 
endpoint, returning plain old HTML.

Walter

On Jan 16, 2013, at 9:20 PM, Dave Lazar wrote:

 Indeed I did... to no great effect with the results... still spits out that 
 it does not want to process an unsafe 'X-JSON' header... 
 
 
 On Wednesday, January 16, 2013 8:46:32 PM UTC-5, Jason wrote:
 
 did you also set the headers in the Ajax.Request object to null
 
 ie
 
 new Ajax.Request('/your/url',{ 'requestHeaders' : { 'X-Requested-With' : 
 null, 'X-Prototype-Version' : null}});
 
 Jason Westbrook | T: 313-799-3770 | jwest...@gmail.com
 
 
 On Wed, Jan 16, 2013 at 5:42 PM, Dave Lazar hunk...@gmail.com wrote:
 I built that version of Prototype, with that pull request... and it did not 
 fix that issue... sigh... since the actual CORS call works.. I will just 
 ignore the browser errors Prototype is throwing... messes things up in the 
 console.. but that is minor...
 
 Thanks
 
 
 On Wednesday, January 16, 2013 7:13:50 PM UTC-5, Jason wrote:
 
 In the latest DEV version hosted on github you can remove the X-* HTTP 
 headers that PrototypeJS puts into the AJAX requests that make the CORS 
 pre-flight requests fail.
 
 
 Check out this pull request
 
 https://github.com/sstephenson/prototype/pull/88
 
 
 Jason Westbrook | T: 313-799-3770 | jwest...@gmail.com
 
 
 On Wed, Jan 16, 2013 at 2:43 PM, Dave Lazar hunk...@gmail.com wrote:
 Chrome, Firefox and Safari all show a console error. They also all show the 
 response. Puzzling...  
 
 
 
 On Wednesday, January 16, 2013 5:22:36 PM UTC-5, Shane McCarron wrote:
 are you using Chrome by any chance?  I noticed that it complains about some 
 other headers I try to set in the same way.
 
 On Wed, Jan 16, 2013 at 4:21 PM, Dave Lazar hunk...@gmail.com wrote:
 As I mentioned... this a CORS setup, so obviously it is cross-site. That part 
 of the stack works perfect, and the response is indeed dished out to the 
 browser as expected. The only problem I have  is Prototype not liking the 
 header... I am looking for the tip that will silence that... 
 
 Thanks
 
 
 On Wednesday, January 16, 2013 5:12:43 PM UTC-5, DaveK wrote:
 is the page served from http://test.heroku.com ? 
 
 If not, it's a cross-site scripting security issue. 
 
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Re: [Proto-Scripty] I'm missing something , link management with javascript

[Walter Lee Davis]

On Jan 13, 2013, at 12:03 PM, tab1ta wrote:

 Hello, i'm trying to interface two different scripts, one from this mailing 
 list and one from here.
 
 The result is a django template:Here
 
 http://pastebin.com/LWJbUZ9v
 
 The problem is that the link:
 
 a href=#/a
 
 should show a pop up windows, when clicked
 
 $('content').on('click', 'a', function openDialog() {
 
 but it simply searches for # and it doesn't show anything.
 
 Is something wrong in the code i posted?

Yup. There's two ways to fix it. First, if you're going to use openDialog 
elsewhere in the same script scope, then define it first and then call it 
directly:

var openDialog = function(){
alert('Howdy!');
};

$('content').on('click','a', openDialog());

If however it is a throw-away, one time thing, you can define an anonymous 
function inside your on() handler and use it directly there. You cannot just 
throw the function keyword in there and get anything but an error, though.

$('content').on('click', 'a', function(){ alert('Howdy!'); });

Walter
 If the problem is somewhere else i can inspect, but i'm not sure of the line 
 of code i posted, 
 Any suggestion?
 
 Thanks Agnese
 
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Re: [Proto-Scripty] event on leaving page

[Walter Lee Davis]

If onbeforeunload returns true-ish, the browser will put up a dialog with the 
results of that true-ish value being cast to a string interpolated inside the 
standard dialog. There is no need to have confirm in there as well. Try either 
returning false if all is well, or a string with your message if not.

Many modern browsers have this behavior anyway -- if you try to leave a page 
after filling out form elements, you get this dialog for free. 

Walter

On Jan 11, 2013, at 1:41 AM, sreekal...@tech4travel.co.in wrote:

 I tried this code before window close.But again i get a pop up like  This 
 page is asking you to confirm that you want to leave - data you have entered 
 may not be saved.Two pop-ups are not needed.
 window.onbeforeunload = function() {
 var r=confirm(Are you sure you want to navigate away?);
 if (r==false)
   {
  return false;
   }
  
  }
 
 
 
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Re: [Proto-Scripty] multipart/form-data upload via ajax

[Walter Lee Davis]

On Jan 9, 2013, at 3:45 PM, Jason Westbrook wrote:

 It is possible but you have to realize it will only work on browsers that 
 have the FileAPI available - Chrome/Firefox/Safari
 
 
 new 
 Ajax.Request(fileupload.php?filename=myfile,{postBody:$(inputfield).files[0]});
 
 will post the contents of the file to fileupload.php
 
 then you can use 
 
 file_get_contents(php://input);

Note that this style of upload will not have the same security treatment by PHP 
as the $_FILES superglobal variable, and move_uploaded_file() and friends will 
not be active for it either. This can become an awful security hole if you 
aren't careful.

 
 to get the contents of the file
 
 and the filename will be $_GET['filename']
 
 

If you want to use the normal upload mechanism, you can use a keyhole iframe 
as the target in your form action to post your file contents normally, and a 
callback function in the window scope of the containing page to signal back 
your updates. It looks like Ajax, but it's really just a multipart form post.

Walter

 
 
 Jason Westbrook | T: 313-799-3770 | jwestbr...@gmail.com
 
 
 On Wed, Jan 9, 2013 at 12:27 PM, fntzr fantaz...@gmail.com wrote:
 It not possible, use Flash Uploader for it, for example 
 http://demo.swfupload.org/v220/simpledemo/index.php.
 
 But with HTML5\xhr2 it will be possible.
 http://dev.w3.org/2006/webapi/FileAPI/#FileReader-interface .
 
 
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Re: [Proto-Scripty] highlighting a tablerow

[Walter Lee Davis]

On Jan 3, 2013, at 8:59 AM, Phil Petree wrote:

 $('mail').on('mouseover', 'tr', function(elm, evt){

My error, the variables are swapped. Make that line this:

$('mail').on('mouseover', 'tr', function(evt, elm){

Walter

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Re: [Proto-Scripty] highlighting a tablerow

[Walter Lee Davis]

On Jan 3, 2013, at 1:41 PM, Phil Petree wrote:

 Thanks Walter!  I tried quite a few things... borrowed 1/2 dozen snippets 
 from various places and nothing was working till yours.
  
 I still have one question, how do you undo (stopObserving) these events?  
 When I load new tables into the other tabs via ajax they are not being 
 monitored which means I need to do a stopEvent and restart with the new rows.

No, you just have to observe from higher up. If you use 
document.on('mouseover'... it will work no matter when or where you insert the 
elements:

http://scripty.walterdavisstudio.com/table-hover.html

I'm not using an Ajax call here to create my new tables, but I am generating a 
completely new object after the page load, and that object has no observers 
defined on it. There's just a single observer at the document level, and it 
listens to all mouseover and mouseout events but only acts when they happen 
over a tr.

Walter

  
 BTW, I had to add a mouseout because when I take the mouse off the table it 
 left a row still highlighted.
  
 It now looks like this:
   var rows = $$('#mail tr');
   $('mail').on('mouseover', 'tr', function(evt, elm){
  rows.invoke('removeClassName', 'over');
  elm.addClassName('over');
   });
   $('mail').on('mouseout', 'tr', function(evt, elm){
  rows.invoke('removeClassName', 'over');
   });
 
 
 On Thu, Jan 3, 2013 at 11:25 AM, Walter Lee Davis wa...@wdstudio.com wrote:
 
 On Jan 3, 2013, at 8:59 AM, Phil Petree wrote:
 
  $('mail').on('mouseover', 'tr', function(elm, evt){
 
 My error, the variables are swapped. Make that line this:
 
 $('mail').on('mouseover', 'tr', function(evt, elm){
 
 Walter
 
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Re: [Proto-Scripty] highlighting a tablerow

[Walter Lee Davis]

I usually have to add the color attribute to the td rather than the tr. You can 
make this change at the CSS level. Rather than using setStyle(), toggle the 
classname of the row, and then set your CSS to apply to td children of that 
class of row. For example:

var rows = $$('#mytable tr');
$('mytable').on('mouseover', 'tr', function(elm, evt){
  rows.invoke('removeClassName', 'over');
  elm.addClassName('over');
}

CSS:
#mytable tr.over td {
  background-color: #fefefe;
}

Walter

On Jan 1, 2013, at 11:55 PM, Dave Kibble wrote:

 I think there's also something weird about CSS applied to table rows,
 (I think) cells don't inherit all properties from the row they
 'belong' to. Make sure your HTML/CSS works in a stand-alone document
 first to check.
 
 Dave
 
 On 1 January 2013 22:53, Phil Petree phil.pet...@gmail.com wrote:
 I have an empty div that gets an ajax result that contains a table which
 looks like this:
 
 HTML:
 table class='form' id='mail' width='100%' border='1'
  tr
thSubject:/th
thFrom:/th
thSent:/th
thAction/th
  /tr
  tr class='mailrow' onclick='viewMsg( .$id .,\ .$subject .\);' 
td$subject/td
td$username/td
td$sentdate/td
td valign='middle' align='center'
  img src='/images/icons/delete.png' width='16' height='16'
 onclick='deleteMsg(this, $id);'
  img src='/images/icons/reply.png' width='16' height='16'
 onclick='replyMsg(this, $id, \{$subject}\ );'
  img src='/images/icons/forward.png' width='16' height='16'
 onclick='forwardMsg(this, $id, \{$subject}\ );'
/td
  /tr
 /table
 
 In the onComplete: I am calling this code to try and cause the rows to
 highlight during the mouseover... I'm getting nothing.  My first thought is
 that the table hasn't been rendered when onComplete is called but then,
 onComplete should be called after all other work is done.  What's the
 solution to this?
 
 Prototype:
 $$('tr.mailrow').each(function(item) {
item.observe('mouseover', function() {
item.setStyle({ backgroundColor: '#303030' });
});
item.observe('mouseout', function() {
item.setStyle({backgroundColor: '#fff' });
});
 });
 
 CSS:
 .mailrow tr:hover { color: #303030; }
 
 
 
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Re: [Proto-Scripty] Anyone know of a good image scroller?

[Walter Lee Davis]

Which ones? I just tried them here without issue.

Walter

On Dec 25, 2012, at 6:41 AM, Phil Petree wrote:

 and Walter, if you're still haning out here, two of those demos are broken).

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Re: [Proto-Scripty] Anyone know of a good image scroller?

[Walter Lee Davis]

I had some older versions of Prototype/Scriptaculous in there, that'd explain 
it, since I was looking on Mac OS, and there was no patch needed for those 
browsers. I've just updated to the latest.

Walter

On Dec 25, 2012, at 5:55 PM, Phil Petree wrote:

 On ie9.
 

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Re: [Proto-Scripty] mouseout event doesn't work

[Walter Lee Davis]

On Dec 21, 2012, at 9:46 AM, tab1ta wrote:

 I added an Event listener to the page, to catch every event but it doesn't 
 work still. The code is more compact:
 
 ?php
 require_once(tabs.php);
 ?
 !DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN 
 http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
 html xmlns=http://www.w3.org/1999/xhtml; xml:lang=en lang=en
 head
 style type=text/css
 @import url(styles.css);
   /style
   script type=text/javascript 
 src=http://ajax.googleapis.com/ajax/libs/prototype/1.7/prototype.js;/script
   script type=text/javascript
document.observe('dom:loaded', function(){
 $('thing_1').on('mouseover', 'img', function(evt, elm){
 evt.stop();
 $('thing_1').replace('div id=thing_1 
 class=gallerylinkpa href=http://tinyurl.com/cwtt2yq;See 
 Photo/a/p/div');
 });

[snip]

 $('thing_1').on('mouseout', 'a', function(evt, elm){
 evt.stop();
 $('thing_1').replace('img id=thing_1 class=galleryitem 
 src=images/gallery1.jpg.jpg onmouseover=showResult1(); 
 style=position:relative; top:0px; left: 0px;/');
 });
[snip]

 });
 /script

[snip]

 Can anyone help?
 Thanks Agnese
 

Sure. Have a careful look at what's happening here. In your mouseover, you are 
completely replacing the content of #thing_1 with new content. The mouseout 
handlers that you defined do not have anything to apply to, so they are a 
no-op. Even if the content to which they would apply is added to the page 
later, they still won't do anything, because the handler has to be added to the 
element it applies to before it can act.

There's a second problem with this page, related to code (and memory) bloat. 
You're defining the same function over and over, once per element on the page, 
even though they all do exactly the same thing. If you look back to my example, 
you'll see that I wrote one function, applied it to the parent container (the 
UL) rather than one function per LI inside that list. You need to do the same 
thing here. Once you do, you'll gain the true value of the on() function: 
deferred observers. 

The third problem is that you are replacing content with content stored in the 
JavaScript -- you're mixing metaphors -- and it's not serving anyone here very 
well. The few people who approach your page with JavaScript disabled will have 
a fundamentally broken experience, and you are suffering from having to edit 
HTML in the midst of your JS, with all the escaping and quote-wrangling that 
implies.

This whole thing could be rewritten as follows:

ul id=myList
  li
img class=galleryitem src=images/gallery1.jpg.jpg 
style=position:relative; top:0px; left: 0px;/
div class=gallerylinkpa href=http://tinyurl.com/cwtt2yq;See 
Photo/a/p/div
  /li
  ...
/ul

Then, in your script:

  var divs = $$('#myList div');
  var imgs = $$('#myList img');
  function setup(){
divs.invoke('hide');
imgs.invoke('show');
  };
  setup();
  $('myList').on('mouseover', 'li', function(evt, elm){
setup();
elm.down('img').hide();
elm.down('div').show();
  });
  $('myList').observe('mouseleave', setup);

That's it, one handler on mouseover for the whole list (mouseover bubbles up 
from the element that triggered it, the on() function dramatically simplifies 
figuring out which element actually triggered it), and one more handler on the 
entire list to clean up after you mouse out of the entire list element. There's 
no replace() going on, so your handlers persist from one event to the next. 
Dramatically less memory used (not critical in this tiny example, but 
significant on a larger page or a longer-running single-page application).

Note that I am observing the mouseover that bubbles up from the LI (parent of 
both the img and the div) and I have removed the illegal duplicate IDs from 
both img and div elements. All of the content will be visible when JavaScript 
is disabled. 
  
Walter

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Re: [Proto-Scripty] TypeError: $(...) is null

[Walter Lee Davis]

You can fix this two different ways: either move your script block to the 
bottom of the page (just before /body, as in my example) or add an unobtrusive 
listener block around your main function. The issue here is that because your 
script appears before the HTML it applies to, none of the elements are present 
in the DOM yet when the closure tries to wrap around them. 

Here's how to wrap them (if you want to put the script at the top of the page:

script type=text/javascript
document.observe('dom:loaded', function(){
var toggles = $$('.toggle'). [etc...]
});
/script

Walter

On Dec 19, 2012, at 8:13 AM, tab1ta wrote:

 Taking from an example that works:
 
 !DOCTYPE html
 html
 head
 meta charset=utf-8 /
 titleShow-Hide Divs/title
 script type=text/javascript 
 src=http://ajax.googleapis.com/ajax/libs/prototype/1.7/prototype.js;/script
 [snip]

   toggles = $$('.toggle').invoke('hide');
 })
   /script
 /body
 /html
 
 I tried to apply this script to a complete webpage but i trows me an error 
 TypeError the $('') function considers the id i pass to it as a null. My web 
 page is longer.
 
 !DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN 
 http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
 html xmlns=http://www.w3.org/1999/xhtml; xml:lang=en lang=en
 head
 style type=text/css
 @import url(styles.css);
 
   /style
   script type=text/javascript 
 src=http://ajax.googleapis.com/ajax/libs/prototype/1.7/prototype.js;/script
   script type=text/javascript
   var toggles = 
 $$('.toggle').invoke('hide');

[snip]

   div id=thing_6 
 class=toggle
   pcopy; by 
 flicr.combr/a href=http://tinyurl.com/cwtt2yq;See Photo/a/p
   /div/div/div/div
 
 /body
 /html
 
 
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Re: [Proto-Scripty] Prototype dom

[Walter Lee Davis]

On Dec 17, 2012, at 5:13 AM, Agnese Camellini wrote:

 
 
 2012/12/17 Walter Lee Davis wa...@wdstudio.com
 
 ?php print 'This is DYNAMIC thing ' . preg_replace('/[^\d]+/', '', 
 $_POST['id']); ?
 
 Call that script page.php and modify the JavaScript as follows:
 
   script type=text/javascript
 var toggles = $$('.toggle').invoke('hide');
  
 is this a way to substitute a CSS property, alternative to setStyle({display: 
 'none'})? 

hide() and show() are simplified syntax to hide and show an element. The hide 
adds display:none, but show doesn't just add display:block -- it removes 
display:none, letting the native element display property (as modified by any 
existing CSS) to shine back through.

 
 $('menu').on('click', 'a', function(evt, elm){
   evt.stop();
   toggles.invoke('hide');
   var target = elm.href.split('#').last();
 
 What do the evt and elm arguments represent?

The on() function takes three arguments: the event that it observes, an 
(optional) CSS selector to refine the targeting on that event, and the function 
body to be wrapped around the event and its triggering element. If you call it 
with only two arguments, then the first is the name of the event, and the 
second is the function body. See: http://api.prototypejs.org/dom/Element/on/ 
and more here: http://api.prototypejs.org/dom/Event/on/

If you were to write that line of my example out in pseudocode, here's what it 
says:

When #menu receives a click event (which may have bubbled up from one of its 
children),
If that click was on an 'a'
Fire this anonymous function, passing it the click event itself and the 'a' 
that was clicked.

This code encapsulates a lot of lines of branching code in your example into 
that one expression, and spackles over the differences between browsers as it 
does so.

  
   new Ajax.Updater(target,
 'page.php', {
   parameters: {
 id: target
   },
   onSuccess: function(){
 $(target).show();
   }
 });
   /script
 
 
 Souldn't the element target be one of the elements toggle hided before? I 
 could use the for loop in my script to identify a list of id in sequence. 

The target is gathered a few lines before, by splitting the href of the elm 
(the link that was clicked). This could be gathered earlier and just once if 
you wanted to optimize things further. There is no need to loop over anything, 
because elm is already a JavaScript reference to the link that was clicked, so 
we have full two-way access to it. Yes, it was hidden before, along with all of 
its peers. Inside this anonymous function, the external variable 'toggles' is a 
reference to the entire collection of elements you are showing and hiding.

 
 Why don't you call the innerHTML function or others? i mean, why Ajax.Updater?

Read the API. Yes, under the covers that method is being used, but again, a 
whole lot of branching conditional logic is encapsulated away from your main 
application, so you don't have to worry about different browsers' 
implementation details. Ajax.Updater is a combination of the Ajax.Request and 
Element.update methods -- a short-cut for those cases where you want to make an 
Ajax request and immediately update an on-screen element with the results of 
that request. Element.update() does use innerHTML in the browsers that support 
it, and something heavier-handed for those that do not implement the spec as 
written.

Hope that helps.

Walter

 
  
 Now when you click this link, the ID will be passed to the script. In this 
 trivial example, the non-numeric parts will be stripped out, and the result 
 will be concatenated with a string and returned through Ajax to populate the 
 box on the screen, which will show as soon as that reply is received. In your 
 more complex example, you could look up the latest news from Yahoo (using 
 PHP, since that doesn't suffer from cross-domain restrictions like JavaScript 
 does) and put that in there instead.
 
 Walter
 
 Thanks
 Agnese
 
 
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Re: [Proto-Scripty] javascrpt newbie, and studying in an old book, can't make this code work..

[Walter Lee Davis]

On Dec 14, 2012, at 5:21 AM, tab1ta wrote:

 Hello. i'm just approaching Javascript through an old book.
 do you see anything wrong in the funcions listed below?
 
 html
 headtitleLink Test/title /head
 body
 a id=mylink href=http://joy.indivia.net;Click me/abr 
 /
 script type=text/javascript
 onError = errorHandler
 url = mylink.href
 document.write('The URL is ' + url)
 
 function errorHandler(message, url, line)
 {
 out = Sorry, an error was encountered.\n\n;
 out += Error:  + message + \n;
 out += URL:  +url + \n;
 out += Line:  +n line + \n\n;
 out += Click OK to continue.\n\n;
 alert(out);
 return true;
 } 
 /script
 noscript
 Your browser doesn't support or has disabled 
 Javascript
 /noscript
 /body
 /html
 
 And in those other functions?
 
 htmlheadtitleAjax XML Example/title/headbodycenter /
 h1Loading a web page into a div/h1
 div id='info'This sentence will be replaced/div
 script
  //   params = url=oreilly.com
 nocache = nocache= + Math.random() * 100
 url = rss.mews.yahoo.com/rss/topstories

TYPO?? mews == news?

 request = new ajaxRequest()
 request.open(GET, xmlget.php?url= + url + nocache, true)
 //request.setRequestHeader(Content-type, 
 application/x-www-form-urlencoded)
 //request.setRequestHeader(Content-length, params.length)
 //request.setRequestHeader(Connection, close)
 out =;
 
 request.onreadystatechange = function()
 {
 if(this.readyState == 4)
 {
 if (this.status == 200)
 {
 if (this.responseText != null)
 {
 titles = this.responseXML.getElementsByTagName('title')
 for (j = 0 ; j  titles.length ; ++j)
 {
 out += titles[j].childNodes[0].nodeValue + 'br/'
 }
 document.getElementById('info').innerHTML = out
 }
 else alert(Ajax error: No data received)
 }
 else alert(Ajax error:  this.statusText)
 }
 }
 
 request.send(null)
 
 function ajaxRequest()
 {
 try:
 {
 var request = new XMLHttpRequest()
 }
 catch(e1)
 {
 try
 {
 request = new ActiveXObject(Msxml2.XMLHTTP)
 }
 catch(e2)
 {
 try
 {
 request = new ActiveXObject(Microsoft.XMLHTTP)
 }
 catch(e3)
 {
 request = false
 }
 }
 }
 return request
 }
 /script/body/html
 
 Firebug and the crome debugger doesn't say anything about any error, but it 
 simply doesn't accomplish the tasck.
 Is there something wrong?

There doesn't seem to be any Prototype in this code snippet. For example, 
Prototype would have $('theId') in place of document.getElementById('theId') 
everywhere. This whole thing could be written in very few lines using the 
Prototype Ajax methods. Have a look at the documentation at 
http://api.prototypejs.org for a crash course.

Are you sure you aren't getting any errors with this code, though? It looks 
like you're requesting data from another domain (unless you work at Yahoo) from 
your own. You should be getting a security error because you're trying to load 
content from outside of your page's domain.

Walter

 tab1ta 
 
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Re: [Proto-Scripty] Prototype dom

[Walter Lee Davis]

On Dec 16, 2012, at 8:59 AM, tab1ta wrote:

 Hello.
 I'm studying, there is a piece of code i cannot get to work, so i was asking 
 myself if you can help, given that all the pastebin doesn't accept the 
 prototype link.

Which ones have you tried? JSFiddle has Prototype as one of its many libraries, 
ready to use. This has the added benefit that the code is rendered and runs in 
your browser while you are working on your example. Others can fork your 
fiddle and fix it there, too.

 I'm not exaclty sure of what it does, i assume it goes through the document 
 dom to place every div page in the right order to be viewed. Its a php file, 
 and i can't really understand why php is needed to solve this task, however 
 is a pice of code found in a book, it could be wrong.
 
 !DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.1//EN 
 http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd;
 html xmlns=http://www.w3.org/1999/xhtml; xml:lang=en
 head
 script type=text/javascript src=prototype.js/script
 script type=text/javascript 
 function importNode(p_element, p_allChildren) {
 switch (p_element.nodeType) {
 case 1:
 var newNode = 
 document.createElement(p_element.nodeName);
 if (p_element.attributes  
 p_element.attributes.length 0)
 for (var i = 0, il=p_element.attributes.length; i 
  il;)
 
 newNode.setAttribute(p_element.attributes[i].nodeName,
 p_element.getAttribute(
 p_element.attributes[i++].nodeName));
 if(p_allChildren  p_element.childNotes  
 p_element.childNodes.length  0)
 for (var i = 0, il = p_element.childNodes.length; 
 i  il;)
 
 newNode.appendChild(importNode(p_element.childNodes[i++], p_allChildren));
 return NewNode;
 break;
 case 2:
 case 3:
 return document.createTextNode(p_element.nodeValue);
 break;
 }
 };

No Prototype here, could be written much more clearly and concisely with 
Prototype idioms.

 
 function turnPage(p_number) {
 var pages = $('article').getElemenetsByTagName('div');

TYPO??? Elemenets !== Elements

(also could be written as $('article').select('div') for added points)

 for (var i = 0, il = pages.length; i il; i++) {
 $(pages[i]).setStyle({display: 'none'});
 $('l' + (i+1)).innerHTML = 'a href=article.php?page=' + 
 (i+1)+ 'onClick=return turnPage('+ (i+1)+')' +(i+1)+'/a';
 }
 if ($('page' + p_number).innerHTML == '') {
 new Ajax.Request('article.php', {
 method: 'post', 
 parameters: {page:p_number }, 
 onSuccess: function(xhrResponse) {
 var response = xhrResponse.responseXML;
 var newNode;
 if (!window.ActiveXObject) {
 newNode =
 
 document.importNode(response.getElementsByTagName('page')[0].childNodes[1], 
 true);
 $('page' + p_number).appendChild(newNode);
 } else {
 newNode = 
 
 importNode(response.getElementsByTagName('page')[0].childNodes[0], true);
 $('page' + p_number).appendChild(newNode);
 }
 $('l' + p_number).innerHTML = p_number;
 $('page' + p_number).setStyle({display: 
 'block' });
 },
 onFailure: function(xhrResponse) {
 $('page').innerHTML = xhrResponse.statusText;
 }
 });
 } else {
 $('l' + p_number).innerHTML = p_number;
 $('page'+ p_number).setStyle({display: 'block' });
 }
 return (false); 
 }/script

The rest of this is a salad of Prototype and non-Prototype coding styles. 
There's nothing wrong with a for loop, until you try to loop over a collection 
of Prototype-extended elements. That's when you meet the salt as opposed to 
the syntactic sugar of Prototype's each() method.

If you can write out, in English as opposed to JavaScript, what it is you're 
trying to accomplish here with this code, I might be able to point 

Re: [Proto-Scripty] Google+ Group Created

[Walter Lee Davis]

On Dec 14, 2012, at 12:16 PM, kstubs wrote:

 Any Google+ users on this forum?  I've started a community there called 
 PrototypeJS.  
 https://plus.google.com/u/0/communities/117299565971807136426
 
 Come join!

Serious question: what would the benefit be versus mail? How would you receive 
notification of new messages? Would you have to keep reloading the page? 

Walter

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Re: [Proto-Scripty] Google+ Group Created

[Walter Lee Davis]

On Dec 14, 2012, at 12:55 PM, Joseph Spandrusyszyn wrote:

 You can turn notifications on for Google+ communities if you want 
 notifications. Those who don't want notifications, but want to look 
 occasionally could join and not turn on notifications.
 
 Although having the community set so that you need to ask to join will limit 
 participation.
 
 - Joe
 
 

It's been my experience (since i got this address in 1994) that things that 
come to me, like mailing lists, get and maintain my attention; while things 
like forums (and their direct descendants -- Facebook and G+ and so forth) that 
require me to go look at them to find if anything is new fade away. I have lost 
count of the number of fora I have joined over the years, often to get 
community support for a particular problem, that I have never returned to again 
after my question was answered. Contrast that with my interaction with this 
mailing list, which has survived three platforms and two name changes, and by 
my count has resulted in me writing 791 posts since 2006. My initial messages 
were questions, and I stood on the shoulders of giants here. Lately the 
majority of my posts are answers to other people's questions. It's that part of 
the equation that I fear gets lost in a non-push environment, to the detriment 
of all.

Walter

 
 On Fri, Dec 14, 2012 at 12:45 PM, Walter Lee Davis wa...@wdstudio.com wrote:
 
 On Dec 14, 2012, at 12:16 PM, kstubs wrote:
 
  Any Google+ users on this forum?  I've started a community there called 
  PrototypeJS.
  https://plus.google.com/u/0/communities/117299565971807136426
 
  Come join!
 
 Serious question: what would the benefit be versus mail? How would you 
 receive notification of new messages? Would you have to keep reloading the 
 page?
 
 Walter
 
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Re: [Proto-Scripty] Future of Prototyp.js

[Walter Lee Davis]

That's an excellent idea. You should see if Kangax wants to pitch in, since he 
created Scripteka, and he's still involved a bit in Prototype.

Walter

On Dec 2, 2012, at 12:32 PM, Jason Westbrook wrote:

 
 
 I'm actually planning on taking whatever is still available on scripteka and 
 rehosting it on github so that others can find it, see examples of it 
 working, post issues and comment on the scripts
 
 Jason Westbrook | T: 313-799-3770 | jwestbr...@gmail.com
 
 
 
 On Sat, Dec 1, 2012 at 7:21 AM, kstubs kst...@gmail.com wrote:
 ..and related to all of this is a site like this:
 http://scripteka.com
 
 Where a ton of the script that use to be available, well the underlying/host 
 site for the code have dropped off the WWW universe.
 Very sad :(  A lot of broken links.
 
 Karl..
 
 
 On Saturday, December 1, 2012 6:54:42 AM UTC-7, isurge wrote:
 We let our IE 6 clients go. 
 
 On 12/1/12 1:48 AM, petrob wrote: 
  I understood why a lot of companies still insist on using IE6 when at 
  a large hypermarket chain the accounting staff pointed out that their 
  very expensive accounting software can only be run on IE6 or on IE9+. 
  The cost efficient solution for them is to go on running their legal 
  copies of XP on some hundreds of computers with IE6 and ban any 
  acive-x objects and script (java, javascript, flash etc) on the 
  company server. So, it is the operating system that is behind the 
  longevity of IE in the corporate field and , unfortunately, it will 
  remain the same for a long time. 
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Re: [Proto-Scripty] string variable transform in code

[Walter Lee Davis]

Leave the quotes off of the variable when you are setting the value, and you 
should have it working (assuming that field is the ID of an input on your 
page. It's also safer to use $('field').getValue() or the shortcut $F('field') 
because that works around some edge cases in older browsers.

Walter

On Dec 2, 2012, at 3:55 PM, Laurent Barre wrote:

 Hi, 
 
 I don't know,it's possible ?
 
 I have this :
 
 param : { field_value : $('field').value }
 
 
 and in function I try to :
 
 alert(param.field_value);
 
 but the reponse is the string $('field').value.
 
 I'd like have the value of the field.
 
 
 Regards
 
 
 
 
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[Proto-Scripty] Element.wrap instance method appears to fail in Safari 6

[Walter Lee Davis]

There's a warning on the API site about IE:

Using Element.wrap as an instance method (e.g., $('foo').wrap('p')) causes 
errors in Internet Explorer when used on textarea elements. The wrap property 
is reserved ontextarea's as a proprietary extension to HTML. As a workaround, 
use the generic version instead (Element.wrap('foo', 'p')).

This appears to be an issue on Safari 6.latest, too. Can anyone confirm?

Walter

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[Proto-Scripty] unsafe header error in Safari

[Walter Lee Davis]

I am using Amazon S3, with a cross-domain request allowed there, and am able to 
load HTML from a static file hosted there into a shell page hosted on my own 
server using Prototype Ajax.Updater. Recently, I started getting an error in 
Safari (latest version) of Refused to get unsafe header 'X-JSON'. This error 
repeats hundreds of times before the content loads. It doesn't stop the load, 
but it annoys me. Has anyone else seen this, and how did you stop it if so?

Thanks,

Walter

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Re: [Proto-Scripty] unsafe header error in Safari

[Walter Lee Davis]

Here's my CORS config:

?xml version=1.0 encoding=UTF-8?
CORSConfiguration xmlns=http://s3.amazonaws.com/doc/2006-03-01/;
CORSRule
AllowedOrigin*/AllowedOrigin
AllowedMethodGET/AllowedMethod
AllowedHeader*/AllowedHeader
/CORSRule
/CORSConfiguration

Walter

On Nov 19, 2012, at 11:35 AM, Walter Lee Davis wrote:

 I am using Amazon S3, with a cross-domain request allowed there, and am able 
 to load HTML from a static file hosted there into a shell page hosted on my 
 own server using Prototype Ajax.Updater. Recently, I started getting an error 
 in Safari (latest version) of Refused to get unsafe header 'X-JSON'. This 
 error repeats hundreds of times before the content loads. It doesn't stop the 
 load, but it annoys me. Has anyone else seen this, and how did you stop it if 
 so?
 
 Thanks,
 
 Walter
 
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Re: [Proto-Scripty] Event On click behavior with selector

[Walter Lee Davis]

On Nov 3, 2012, at 1:51 PM, kstubs wrote:

 If I define an on click event for a given css selector did I disable or trap 
 the default click event?  Reason I'm asking is I have a form and I have wired 
 up a click event for a given input type like this:
 
 this.form.on('click', 'input[type=checkbox]' ,functionChkClicked);
 
 Now my radio clicks aren't working.  I can click one item in a radio group 
 but when I try to click a different item in the same group it doesn't work.  
 

Can you show the definition of your method functionChkClicked? Also, what do 
your see in your browser console? You should see an error there if that's why 
your function isn't returning. And no, an observer like this will only stop the 
default behavior if that's what you tell it to do. Otherwise, the event bubbles 
right on through.

Walter

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Re: [Proto-Scripty] Attach Ajax.Updater to link

[Walter Lee Davis]

On Oct 28, 2012, at 4:15 AM, donnek wrote:

 I'm new to Prototype, and I'm trying to use AJAX to update divs inthe 
 background, pulling data from a database.  I've got Ajax.Updater to work with 
 the output of a form, but I'm having difficulty with adpting it for use with 
 a link.  Basically, I have a list of words produced by the db, each of them a 
 clickable link, and when I click on the word I want the context of the word 
 (likewise drawn from the db) to come up in a div below the list.
 
 What I have at the minute:
 
 calling page:
 diva href=javascript:void(0); class='textword' id='myword1' 
 onclick=get_word()myword1/a/div
 diva href=javascript:void(0); class='textword' id='myword2' 
 onclick=get_word()myword2/a
 div id=output[Results appear here.]/div
 script
 function get_word()
 {
 new Ajax.Updater
 ( 
 'output', 
 'mylist.php',
 {
 method: 'get',
 parameters: { word: $(this).attr(id) }

I'm pretty sure your problem is right here. There's no attr() method in 
Prototype. Try readAttribute() instead, and you appear to have everything right 
besides.

Walter

 }
 );
 }
 /script
 
 mylist.php:
 [db connection stuff]
 $word=trim($_GET['word']);
 $sql=query(select * from mytable where word~'$word';);
 while ($row=pg_fetch_object($sql))
 {
 echo $context.br /;
 }
 
 Run by itself, mylist.php gives the results I want, so I think I haven't got 
 the right invocation for the link, but after several hours searching and 
 experimenting, I have to ask!
 
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Re: [Proto-Scripty] Attach Ajax.Updater to link

[Walter Lee Davis]

On Oct 28, 2012, at 12:05 PM, donnek wrote:

 On Sunday, 28 October 2012 15:53:37 UTC, Walter Lee Davis wrote:
 I'm pretty sure your problem is right here. There's no attr() method in 
 Prototype. Try readAttribute() instead, and you appear to have everything 
 right besides. 
 
 Thanks, Walter, but unfortunately changing that line to:
 parameters: { word: $(this).readAttribute(id) }
 doesn't help.
 

What does Firebug say your request looks like? What does your server respond 
with?

Walter

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Re: [Proto-Scripty] Attach Ajax.Updater to link

[Walter Lee Davis]

Okay, that means that 'this' inside the Ajax.Updater is not set to what you 
think it is. Try this:

function get_word(elm)
{
new Ajax.Updater
( 
'output', 
'mylist.php',
{
method: 'get',
parameters: { word: $(elm).readAttribute(id) }
}
);
}

call it with get_word(this) in your inline handler example. 

A much neater way to handle this is with an unobtrusive handler. For this HTML 
(note the differences):

divp class='textword' id='myword1'myword1/p
p class='textword' id='myword2'myword2/p/div
div id=output[Results appear here.]/div

could be handled with this JavaScript:

script type=text/javascript
  document.observe('dom:loaded', function(){
document.on('click','.textword', function(evt, elm){
  new Ajax.Updater(
'output', 
'mylist.php', {
  method: 'get', 
  parameters: {
word: elm.readAttribute('id')
  }
}
  );
});
  });
/script

Much cleaner and fewer global variables are massacred.

Walter

On Oct 28, 2012, at 3:23 PM, donnek wrote:

 
 
 On Sunday, 28 October 2012 15:53:37 UTC, Walter Lee Davis wrote: 
 What does Firebug say your request looks like? What does your server respond 
 with? 
 
 TypeError: $(this).readAttribute is not a function
   
 parameters: { word: $(this).readAttribute(id) }
 
 There's no change to the calling page - it shows nothing in the output div.
 
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Re: [Proto-Scripty] Attach Ajax.Updater to link

[Walter Lee Davis]

I use elm to stand for element, and evt to stand for event. It's just a habit I 
have, to keep clear in my head what I am dealing with when I use an observer or 
an iterator.

If I am iterating over a collection of elements with each, I will usually write 
this:

$$('.foo').each(function(elm){
/* do something to elm here */
});

Using elm here reminds me that I am dealing with an element, rather than an 
event, and that I will have direct access to the element.

Using the same collection and observing the click on it, I would write this:

$$('.foo').invoke('observe', 'click', function(evt){
// inside here, evt is the click event
evt.stop();
// and 'this' is the element that received the click: one of the .foo 
elements
this.highlight();
});

I prefer unobtrusive observers for several reasons. 

First, they remove the masses of repeating inline code from the HTML, where all 
it does is bloat the page without adding any value. Any time you find yourself 
writing the same thing more than once, that's an opportunity for improvement. 

Second, if your observer is all in one place, you can make sweeping changes 
without having to go back and rewrite every invocation of the method. Imagine 
if you changed your function definition to need two variables passed to it 
rather than one. With your method, that means touching every row of your 
interface, while with mine, you just rewrite it in one place.

Walter

On Oct 28, 2012, at 5:51 PM, donnek wrote:

 On Sunday, 28 October 2012 20:32:34 UTC, Walter Lee Davis wrote:
 Okay, that means that 'this' inside the Ajax.Updater is not set to what you 
 think it is. Try this: 
 snip
 Much cleaner and fewer global variables are massacred. 
 
 Hey, thanks!  Both of those work. But I don't understand what elm (not the 
 tree, I assume!) and evt are/do.  And why is the second cleaner (because I 
 find the first easier to understand).  Thanks again for taking the time on 
 this.
 
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Re: [Proto-Scripty] Transparency e Opacity don´t work in IE 8

[Walter Lee Davis]

On Oct 24, 2012, at 3:40 PM, JB wrote:

 Hi
 
 I'm using Prototype 1.2

Wow, that's quite old! 1.7.1 is current, and given the pace of development, it 
too is getting long in the tooth.

 And the transparency and opacity not work in ie8

That's your problem right there. You're not using Prototype to make the element 
less than opaque, you're trying to use rgba color to do that, and IE doesn't 
support that natively. There are filter styles you can use to make a 
semi-opaque color in IE, but there's nothing magical about Prototype that 
suddenly makes IE capable of handling rgba.

What you might be confusing here is that Prototype does shim the opacity 
attribute for IE. But that doesn't behave the same way as rgba -- when you set 
an element to opacity: 0.4, that makes everything -- type, images, background 
color, border -- 40% opaque. Rgba backgrounds merely make the background 
semi-opaque, and leave the contents of the box opaque.

Walter

 
 My code:
 
 $('av-img').addEvent('mouseover', function(event){
 
 
 $('avatar_upload').setStyle('background', 'rgba(0, 0, 0, 0.6)');
 $('select-0').setStyle('color', '#fff');
   
 });

 $('av-img').addEvent('mouseout', function(event){
 $('avatar_upload').setStyle('background', 'transparent');
 $('select-0').setStyle('color', 'transparent');
 });
 
 $('avatar_upload').addEvent('mouseover', function(event){
 $('avatar_upload').setStyle('background', 'rgba(0, 0, 0, 0.6)');
 $('select-0').setStyle('color', '#fff');
 });
 
 $('avatar_upload').addEvent('mouseout', function(event){  
 $('avatar_upload').setStyle('background', 'rgba(0, 0, 0, 0.6)');
 $('select-0').setStyle('color', '#fff');
 });
 
 How fix this bug?
 
 Tks
 
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Re: [Proto-Scripty] Prototype, addClassName on future elements

[Walter Lee Davis]

Can you describe what you mean by future elements on the page? Do you mean 
elements that are later in the source order than the script? If so, that's 
pretty simple:

document.observe('dom:loaded', function(){
$$('div.foo').invoke('addClassName', 'bar');
});

Walter

On Oct 24, 2012, at 7:52 AM, Henrik Aagaard Sørensen wrote:

 I'm trying to append a class via addClassName on future elements on a page 
 with Prototype, however I do seem to struggle a bit with it. I know of 
 jQuery's .live feature, but I cannot find a similar feature in Prototype.
 
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Re: [Proto-Scripty] Prototype, addClassName on future elements

[Walter Lee Davis]

You can add this transformation in the onSuccess callback of your Ajax call:

new Ajax.Updater('foo', '/get/more/foo', {onSuccess: function(){
$$('.foo').invoke('addClassName', 'bar');
});

As long as you don't have a ton of DOM changes happening, this should just 
work. Otherwise, you may want to wrap it in a Defer to ensure that the DOM is 
stable before you run it.

Walter

On Oct 24, 2012, at 8:00 AM, Henrik Aagaard Sørensen wrote:

 No, unfortunately it's not that.
 
 It's elements being loaded into the dom later. I'm already using dom:loaded 
 and I've placed the JS jus before /body as the last element.
 However, there are several Ajax-calls which later (in the future, after 
 everything is loaded) creates new elements (which I have no control over), so 
 I need to have Prototype adding specific class-names in elements which 
 fullfill CSS selector at all time.
 
 On Wed, Oct 24, 2012 at 1:57 PM, Walter Lee Davis wa...@wdstudio.com wrote:
 Can you describe what you mean by future elements on the page? Do you mean 
 elements that are later in the source order than the script? If so, that's 
 pretty simple:
 
 document.observe('dom:loaded', function(){
 $$('div.foo').invoke('addClassName', 'bar');
 });
 
 Walter
 
 On Oct 24, 2012, at 7:52 AM, Henrik Aagaard Sørensen wrote:
 
  I'm trying to append a class via addClassName on future elements on a page 
  with Prototype, however I do seem to struggle a bit with it. I know of 
  jQuery's .live feature, but I cannot find a similar feature in Prototype.
 
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Re: [Proto-Scripty] Prototype, addClassName on future elements

[Walter Lee Davis]

Okay, then try this (wasteful but should do the job):

new PeriodicalExecuter(function(){ $$('.foo').invoke('addClassName', 'bar'); }, 
0.3);

There's also an event (not uniformly covered by the browsers) that is fired 
when a DOM element is changed. Try observing DomSubtreeModified and hooking off 
of that to fire your class modification.

Walter

On Oct 24, 2012, at 8:34 AM, Henrik Aagaard Sørensen wrote:

 Hi Walter.
 
 Thank you for your answer, however, I do not have the ability to change the 
 Ajax-calls. It's external scripts which is being loaded.
 
 On Wed, Oct 24, 2012 at 2:32 PM, Walter Lee Davis wa...@wdstudio.com wrote:
 You can add this transformation in the onSuccess callback of your Ajax call:
 
 new Ajax.Updater('foo', '/get/more/foo', {onSuccess: function(){
 $$('.foo').invoke('addClassName', 'bar');
 });
 
 As long as you don't have a ton of DOM changes happening, this should just 
 work. Otherwise, you may want to wrap it in a Defer to ensure that the DOM is 
 stable before you run it.
 
 Walter
 
 On Oct 24, 2012, at 8:00 AM, Henrik Aagaard Sørensen wrote:
 
  No, unfortunately it's not that.
 
  It's elements being loaded into the dom later. I'm already using dom:loaded 
  and I've placed the JS jus before /body as the last element.
  However, there are several Ajax-calls which later (in the future, after 
  everything is loaded) creates new elements (which I have no control over), 
  so I need to have Prototype adding specific class-names in elements which 
  fullfill CSS selector at all time.
 
  On Wed, Oct 24, 2012 at 1:57 PM, Walter Lee Davis wa...@wdstudio.com 
  wrote:
  Can you describe what you mean by future elements on the page? Do you mean 
  elements that are later in the source order than the script? If so, that's 
  pretty simple:
 
  document.observe('dom:loaded', function(){
  $$('div.foo').invoke('addClassName', 'bar');
  });
 
  Walter
 
  On Oct 24, 2012, at 7:52 AM, Henrik Aagaard Sørensen wrote:
 
   I'm trying to append a class via addClassName on future elements on a 
   page with Prototype, however I do seem to struggle a bit with it. I know 
   of jQuery's .live feature, but I cannot find a similar feature in 
   Prototype.
  
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Re: [Proto-Scripty] Prototype, addClassName on future elements

[Walter Lee Davis]

DOM should be all caps. I just tried this in Safari 6, and while I couldn't get 
SubtreeModified to work, DOMNodeInserted worked great. You might want to try 
that. It works no matter what sort of content you insert -- even a bare string 
is a new DOM node.

Walter

On Oct 24, 2012, at 8:52 AM, Henrik Aagaard Sørensen wrote:

 PeriodicalExecuter does the job, thank you.
 
 However, I would like to try DomSubtreeModified. But this doesn't work in 
 Chrome:
 
 document.observe('DomSubtreeModified ', function () {
   //Do stuff
 });
 
 Am I doing something wrong?
 
 On Wed, Oct 24, 2012 at 2:47 PM, Walter Lee Davis wa...@wdstudio.com wrote:
 Okay, then try this (wasteful but should do the job):
 
 new PeriodicalExecuter(function(){ $$('.foo').invoke('addClassName', 'bar'); 
 }, 0.3);
 
 There's also an event (not uniformly covered by the browsers) that is fired 
 when a DOM element is changed. Try observing DomSubtreeModified and hooking 
 off of that to fire your class modification.
 
 Walter
 
 On Oct 24, 2012, at 8:34 AM, Henrik Aagaard Sørensen wrote:
 
  Hi Walter.
 
  Thank you for your answer, however, I do not have the ability to change the 
  Ajax-calls. It's external scripts which is being loaded.
 
  On Wed, Oct 24, 2012 at 2:32 PM, Walter Lee Davis wa...@wdstudio.com 
  wrote:
  You can add this transformation in the onSuccess callback of your Ajax call:
 
  new Ajax.Updater('foo', '/get/more/foo', {onSuccess: function(){
  $$('.foo').invoke('addClassName', 'bar');
  });
 
  As long as you don't have a ton of DOM changes happening, this should just 
  work. Otherwise, you may want to wrap it in a Defer to ensure that the DOM 
  is stable before you run it.
 
  Walter
 
  On Oct 24, 2012, at 8:00 AM, Henrik Aagaard Sørensen wrote:
 
   No, unfortunately it's not that.
  
   It's elements being loaded into the dom later. I'm already using 
   dom:loaded and I've placed the JS jus before /body as the last element.
   However, there are several Ajax-calls which later (in the future, after 
   everything is loaded) creates new elements (which I have no control 
   over), so I need to have Prototype adding specific class-names in 
   elements which fullfill CSS selector at all time.
  
   On Wed, Oct 24, 2012 at 1:57 PM, Walter Lee Davis wa...@wdstudio.com 
   wrote:
   Can you describe what you mean by future elements on the page? Do you 
   mean elements that are later in the source order than the script? If so, 
   that's pretty simple:
  
   document.observe('dom:loaded', function(){
   $$('div.foo').invoke('addClassName', 'bar');
   });
  
   Walter
  
   On Oct 24, 2012, at 7:52 AM, Henrik Aagaard Sørensen wrote:
  
I'm trying to append a class via addClassName on future elements on a 
page with Prototype, however I do seem to struggle a bit with it. I 
know of jQuery's .live feature, but I cannot find a similar feature in 
Prototype.
   
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Re: [Proto-Scripty] Old 1.6.1 library

[Walter Lee Davis]

On Oct 16, 2012, at 5:32 PM, Trik wrote:

 Hi there,
 
 I'm a littlebit confused, i'm not a prototype expert and i would like to 
 solve a problem.
 I have an old library based on 1.6.1 version.
 
 There is a method that make an error when i try to upgrade to 1.7.1 : 
 
 function onMousedown(event) {
 var draggable = event.findElement('[ui:draggable=true]');
 
 if (draggable) {
   event.stop();
   currentDraggable = draggable;
   initPointer = event.pointer();
 
   document.observe(mousemove, onMousemove)
   .observe(mouseup,   onMouseup);
 }
   };
 
 Seems the new selector Sizzle don't like the '[ui:draggable=true]' 
 expression.
 
 -- Syntax error, unrecognized expression: [ui:draggable=true]
 
 Do you have an idea what could be a good syntax ?

Sizzle (or even other selector engines) base their behavior on CSS selectors. 
If ui:draggable is an attribute that can be applied in HTML to an element, then 
they can select it, usually. Can you show the HTML that this is supposed to 
match? Is that HTML valid according to W3C's validator? That's another very 
important place to start. While browsers put up with almost any sort of crap 
HTML, JavaScript DOM is a more unforgiving taskmaster.

Walter

 
 Hope this will be enought as informations to help me.
 
 Thanks in advance guys :)
 
 
 
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Re: [Proto-Scripty] Zoom

[Walter Lee Davis]

Are you asking if you can write one, or if one exists you could use?

Walter

On Oct 8, 2012, at 8:11 AM, Erika Will wrote:

 Hello can I include a zoom function?
 
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Re: [Proto-Scripty] Form submit bubble

[Walter Lee Davis]

On Sep 26, 2012, at 5:00 AM, kstubs wrote:

 Does a form submit bubble up to the containing element?
 I'd like to capture form submit on a container div for a form submit.  Reason 
 being:  I create the form on the fly based on whichever child element the 
 user has selected (if any).  I'd like to add a form submit handler to the 
 container, much like I do for click events, to handle and setup the form 
 submission one time.

I'm not sure if it does in every browser. You may be able to simulate this with 
synthetic events, using fire() on the form to send out the broadcast, and 
observe() on the DIV to receive.

Walter

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Re: [Proto-Scripty] Prototype's selector as well as eq in Jquery

[Walter Lee Davis]

Sure. if you start at the tr that holds the tds, you can use down() to do this. 
If you want the second td to have a certain width, you could do this:

$$('tr').each(function(elm){
elm.down('td', 2).setStyle('width:122px');
});

Walter

On Sep 23, 2012, at 12:59 PM, Евгений Шморгун wrote:

 I have to assign the different sizes to the td, and the width of them depends 
 on the number's position of the tag in table.
 
 In Jquery I can write
 
 $$('td .yui-dt-liner 
 div[id^=yui-gen]').eq(2).invoke(setStyle,{'width':'122px'});
 changing the argument in eq. is there analogue expression in prototype.js ?
 
 Thanks!
 
 
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Re: [Proto-Scripty] Remove horizontal gaps in puzzle demo

[Walter Lee Davis]

Whenever you place an image (or text) inside a div without wrapping it in a P 
tag, the browser will add an implicit P tag around the image, and treat it to 
the default line-height and padding for a P on your page. I am pretty sure 
that's what's going on here, and you should be able to get rid of it by adding 
a style like this to the page:

#puzzle {
font-size: 0.1px;
line-height: 1;
}

Walter

On Aug 15, 2012, at 1:28 AM, pmolsen wrote:

 Anyone know how to remove the blank horizontal gaps between the rows
 in the puzzle example here please:
 http://madrobby.github.com/scriptaculous/puzzle-demo/
 
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Re: [Proto-Scripty] Any reason why this might not work?

[Walter Lee Davis]

On Aug 9, 2012, at 5:28 AM, Victor wrote:

 It may fail because this code may overwrite element's properties (and in some 
 browsers like IE and Opera some attributes, mapped as element properties).

That's an excellent point.

 E.g. $(someInput).store(name, foo).store(type, bar); Better will be 
 some separate container to store values inside, but this leads to 
 back-porting element storage back to Prototype 1.6:
 
 // storage container nested in each element
 if(typeof Element.store == 'undefined'){
   Element.addMethods({
 store: function(e, k, v){
   e._prototypeStorage = e._prototypeStorage || {};
   e._prototypeStorage[k] = v;
 },
 retrieve: function(e, k){
   e._prototypeStorage = e._prototypeStorage || {};
   return (e._prototypeStorage[k]);
 }
   });
 }

Would this construction:

e._prototypeStorage = e._prototypeStorage || {}

fall afoul of the issue that Jason pointed out? Would IE bork the assignment 
because the key wasn't in hash form and quoted?

Walter

 
 // storage container in closure
 (function(){
 if(typeof Element.store == 'undefined'){
   var storage = {};
   function uid(e) {
 // TODO return some uid for element like in Prototype 1.7
   }
   Element.addMethods({
 store: function(e, k, v){
   var id = uid(e);
   storage[id] = storage[id] || {};
   storage[id][k] = v;
 },
 retrieve: function(e, k){
   var id = uid(e);
   storage[id] = storage[id] || {};
   return (storage[id][k]);
 }
   });
 }
 })();
 
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