Rails spinoffs - Nov 2006 - Disable autocomplete (Ajax.Autocompleter) on the fly.

I''m sure there is an easy way to do this, but it is one of those things
that is incredibly difficult to search for.

How can I disable an ''Ajax.Autocompleter'' element from working
''on the
fly''? I have a page where I''m using two (I know it''s
crazy)
Ajax.Autocompleter elements and once one of them has got a result I
want the other field to just behave as a normal text input.

There may even be a defined method to do this but I don''t know what it
is.

Any help?

Thanks in advance,

--mobrien118


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Oh, I forgot, I would like to be able to re-enable it without a page
load as well.

Thanks!


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Without actually trying anything myself, but just taking a guess here.
 Could you just stop observing the text field using the stopObserving
method and then when you want to use the text field as an autocomplete
again, just re-observe the original events with the observe method?

On 11/30/06, mobrien118
<mobrien118-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Oh, I forgot, I would like to be able to re-enable it without a page
> load as well.
>
> Thanks!
>
>
> >
>
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I found that method called in the code like
''Event.stopObserving(this.element, ''click'',
this.onclickListener);''.
Unfortunately, I am not advanced enough to know how to do this myself.
My Ajax.Autocompleter is called ''DESCRIPTIVE_NAME'' and is
created as
such:

new Ajax.Autocompleter("DESCRIPTIVE_NAME", "autosuggest2",
"DCO_Manage_Project.cfc",
{parameters:''method=getHTMLByDesc'',
afterUpdateElement:getInfo,
indicator:''JSMX_loading'',frequency:0.2});

Can you help me any more? I will keep researching in the mean time.
Thanks for the help so far in pointing me in the right direction.

--mobrien118


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Again, I''m not actually trying any of this out, but something like
this...

var ac = new Ajax.Autocompleter("DESCRIPTIVE_NAME",
"autosuggest2", ...

// stop observing
Event.stopObserving(ac.element, ''keypress'', ac.onKeyPress)

// start observing again
Event.observe(ac.element, ''keypress'',
ac.onKeyPress.bindAsEventListener(ac))

Again, no idea if this works at all, or if it''s even in a step in the
right direction.  Play with it and see what you get. :)

Andrew

On 11/30/06, mobrien118
<mobrien118-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> I found that method called in the code like
> ''Event.stopObserving(this.element, ''click'',
this.onclickListener);''.
> Unfortunately, I am not advanced enough to know how to do this myself.
> My Ajax.Autocompleter is called ''DESCRIPTIVE_NAME'' and is
created as
> such:
>
> new Ajax.Autocompleter("DESCRIPTIVE_NAME",
"autosuggest2",
> "DCO_Manage_Project.cfc",
{parameters:''method=getHTMLByDesc'',
> afterUpdateElement:getInfo,
indicator:''JSMX_loading'',frequency:0.2});
>
> Can you help me any more? I will keep researching in the mean time.
> Thanks for the help so far in pointing me in the right direction.
>
> --mobrien118
>
>
> >
>
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OK, I tried adding these commands, and they are running but not doing
anything that I can tell:

Event.stopObserving(document.getElementById(''DESCRIPTIVE_NAME'').element,
''click'',
document.getElementById(''DESCRIPTIVE_NAME'').onclickListener);

Event.stopObserving(document.getElementById(''DESCRIPTIVE_NAME'').element,
''mouseover'',
document.getElementById(''DESCRIPTIVE_NAME'').mouseoverListener);

Event.stopObserving(document.getElementById(''DESCRIPTIVE_NAME'').element,
''mouseout'',
document.getElementById(''DESCRIPTIVE_NAME'').mouseoutListener);

There has to be a way to do this!

Any help?

--mobrien118


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Oh wait! I am actually getting an error "element has no properties" on
line 2005 of Prototype.js ("if (element.removeEventListener) {") when
I
make these calls.

Am I calling them correctly? (correct parameters?)

Thanks again,

--mobrien118


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Please, anyone?

Maybe I can reassign the onkeypress and onclick to some other action
(like an empty function) but then how do I ''turn it on'' again?

I''m really strugglin'' here.

Thanks,

--mobrien118


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Okay, a little off of the topic I''m haing another strange problem with
this same page. Here''s what I''m trying to do:

I have 2 autocomplete fields, both drawing from the same data. The
first contains the primary key for the database, the second contains a
description field. When the first field is filled by a valid key (by
clicking ''enter'' or moueclick on an element from the
autocomplete
dropdown) it is disabled using JavaScript (setting readOnly=true). This
keeps it from being edited etc. The second field also uses an
autocomplete, but searches by the description. Since it is not a unique
key, when someone selects an item from this autocomplete dropdown it
gets the primary key, then moves the value to the primary field and
gets the info (thus doing the same thing as if the user put the primary
key in the primary key field and filling in the rest of the info).

The new problem I''m having is that pressing ''enter''
on the SECOND
autocomplete field closes the autocomplete dropdown (as if I had
selected a value) but doesn''t actually insert the value. If I click on
a selection with the mouse it works, though. Why would the mouse-click
work but not the keypress?

This is, of course, on top of my original problem of not being able to
disable the second field without making it readOnly, which I can''t do
because it must be editable.

This is tough, and I''m starting to believe impossible. :-(

--mobrien118


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I am desperate to find the solution to this problem!

So, I will paypal whoever can figure this out $1 and post my working
solution here AND I will never post about this problem again.

Anyone?

--mobrien118


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If all else fails, cheat.

A kuldgey workaround: make two elements, one with the auto-complete,  
the other without.  Switch between them in such a way that the user  
can''t tell.

It''s not a good answer, but maybe it''ll lead you to a better
one.



TAG

On Dec 19, 2006, at 2:57 PM, mobrien118 wrote:
>
> I am desperate to find the solution to this problem!
>
> So, I will paypal whoever can figure this out $1 and post my working
> solution here AND I will never post about this problem again.
>
> Anyone?
>
> --mobrien118
>
>
> >

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If you are just using one Autocompleter on the page, you can disable it 
by using something like this:

<input type="radio" onclick="Event.unloadCache();" />

I know its not the best answer, but it does disable the autocompleter.


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My sugestion
<input type="text" class="autoComplete"
id="text1" value=""/>
<div id="choice1" class="autocomplete"></div>
<input type="text" class="autoComplete"
id="text2" value=""/>
<div id="choice2" class="autocomplete"></div>
<input type="text" class="autoComplete"
id="text3" value=""/>
<div id="choice3" class="autocomplete"></div>

And Javascript Part

var AutoCompleters = new Array();
AutoCompleters[AutoCompleters.length]=new Ajax.Autocompleter("text1",
"choice1", "/url/on/server", {});
AutoCompleters[AutoCompleters.length]=new Ajax.Autocompleter("text2",
"choice2", "/url/on/server", {});
...
and after that you can create function
function disable()
{
  AutoCompleter.each(function(item)
  {
      Event.stopObserving(item.element, "keypress",
item.onKeyPress.bindAsEventListener(this));
  });
}

function enable()
{
  AutoCompleter.each(function(item)
  {
      Event.stopObserving(item.element, "keypress",
item.onKeyPress.bindAsEventListener(item));
  });
}

Something like that i think. I write from my head, so i don't know if it
works.


2006/11/30, mobrien118 <mobrien118@gmail.com>:
>
> I'm sure there is an easy way to do this, but it is one of those things
> that is incredibly difficult to search for.
>
> How can I disable an 'Ajax.Autocompleter' element from working
'on the
> fly'? I have a page where I'm using two (I know it's crazy)
> Ajax.Autocompleter elements and once one of them has got a result I
> want the other field to just behave as a normal text input.
>
> There may even be a defined method to do this but I don't know what it
> is.
>
> Any help?
>
> Thanks in advance,
>
> --mobrien118
>
>
> >
>

-- 
Pozdrawiam
Arkadiusz M ynarczyk

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