I implemented my own autocompleter a long time ago. I couldn't release it
because my company technically owns it now.
This is the way I did it:
Set Up a Timer that start when the textField takes input (onFocus)
Save the timer object and destroy it when the user leaves the field
(onBlur)
The timer should call a function that checks the user's text.
If the text is longer than the last known stored value OR
it is different than the last stored value attempt to suggest
-Andrew Martinez
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark McCray
Sent: Tuesday, May 23, 2006 2:55 PM
To: [email protected]
Subject: Re: [Rails-spinoffs] throttling...
Actually,
here's what i'm trying to do:
I want the user to be able to type in some text in an input field and
i only want the ajax request to happen after the user has stopped
typing for 1 or two seconds. Kind of like how google suggest or
autocompleter works. I can't use the ajax autocompleter because we
have a specific requirement that makes the autocompleter not work for
us.
Thanks,
mark
On May 23, 2006, at 2:37 PM, Martinez, Andrew wrote:
> HTML was stripped: go here: http://www.sergiopereira.com/articles/
> prototype.js.html#Ajax.options
>
> -Andrew Martinez
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:rails-
> [EMAIL PROTECTED] On Behalf Of Martinez, Andrew
> Sent: Tuesday, May 23, 2006 2:32 PM
> To: [email protected]
> Subject: RE: [Rails-spinoffs] throttling...
>
> In the options argument you have the following options (http://
> www.sergiopereira.com/articles/prototype.js.html ) and you will
> want to use Ajax.PeriodicalUpdater w/ the last options:
>
> The options argument object
> An important part of the AJAX operations is the options argument.
> There's no options class per se. Any object can be passed, as long
> as it has the expected properties. It is common to create anonymous
> objects just for the AJAX calls.
> Property Type Default Description
> method String 'post' Method of the HTTP request
> parameters String '' The url-formatted list of values passed to the
> request
> asynchronous Boolean true Indicates if the AJAX call will be made
> asynchronously
> postBody String undefined Content passed to in the request's body
>
> in case of a HTTP POST
> requestHeaders Array undefined List of HTTP headers to be
> passed
> with the request. This list must have an even number of items, any
> odd item is the name of a custom header, and the following even
> item is the string value of that header. Example:['my-header1',
> 'this is the value', 'my-other-header', 'another value']
> onXXXXXXXX Function(XMLHttpRequest, Object) undefined Custom
> function to be called when the respective event/status is reached
> during the AJAX call. Example var myOpts = {onComplete:
> showResponse, onLoaded: registerLoaded};. The function used will
> receive one argument, containing the XMLHttpRequest object that is
> carrying the AJAX operation and another argument containing the
> evaluated X-JSON response HTTP header.
> onSuccess Function(XMLHttpRequest, Object) undefined Custom
> function to be called when the AJAX call completes successfully.
> The function used will receive one argument, containing the
> XMLHttpRequest object that is carrying the AJAX operation and
> another argument containing the evaluated X-JSON response HTTP header.
> onFailure Function(XMLHttpRequest, Object) undefined Custom
> function to be called when the AJAX call completes with error. The
> function used will receive one argument, containing the
> XMLHttpRequest object that is carrying the AJAX operation and
> another argument containing the evaluated X-JSON response HTTP header.
> onException Function(Ajax.Request, exception) undefined Custom
> function to be called when an exceptional condition happens on the
> client side of the AJAX call, like an invalid response or invalid
> arguments. The function used will receive two arguments, containing
> the Ajax.Request object that wraps the AJAX operation and the
> exception object.
> insertion an Insertion class undefined A class that will
> determine
> how the new content will be inserted. It can be Insertion.Before,
> Insertion.Top, Insertion.Bottom, or Insertion.After. Applies only
> to Ajax.Updater objects.
> evalScripts Boolean undefined, false Determines if script blocks
> will be evaluated when the response arrives. Applies only to
> Ajax.Updater objects.
> decay Number undefined, 1 Determines the progressive slowdown in a
> Ajax.PeriodicalUpdater object refresh rate when the received
> response is the same as the last one. For example, if you use 2,
> after one of the refreshes produces the same result as the previous
> one, the object will wait twice as much time for the next refresh.
> If it repeats again, the object will wait four times as much, and
> so on. Leave it undefined or use 1 to avoid the slowdown.
> frequency Number undefined, 2 Interval (not frequency) between
> refreshes, in seconds. Applies only to Ajax.PeriodicalUpdater objects.
>
>
> var myUpdater = new Ajax.PeriodicalUpdater( $('itemId'), url,
> {frequency:1} );
>
> -Andrew Martinez
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:rails-
> [EMAIL PROTECTED] On Behalf Of Mark McCray
> Sent: Tuesday, May 23, 2006 2:20 PM
> To: [email protected]
> Subject: [Rails-spinoffs] throttling...
>
> Is there a way to throttle the firing of updater requests easily with
> Prototype?
> Thanks,
> mark
>
>
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