similar to: this pointer in Event.observe function

Hi, i''m trying to use a visual indicator for my Ajax requests. It''s based on the shopping cart demo at script.aculo.us and works great in Firefox, Konqueror and Opera, but fails in IE6. For some reason (timing problems?) onComplete is executed before onLoading, so the indicator is shown but not hidden when the request has finished. Oddly enough it works fine in the shopping

Hi, i have a problem with the the SlideDown and SlideUp effects. Since a similiar problem is also visible on the script.aculo.us homepage, i''m going to explain it this way. - Go to http://script.aculo.us/ - On the main site below "visual effects", click "Advanced options", the sub panel will scroll down. - Hit the close button, and while the panel is still

Hi all. I have some performance tips to share. I had been having problems with the overall performance of the drag/drop objects. This is due largely to the fact that my project really pushes the limits (potentially thousands of draggables and hundreds of droppables in the document at a time, although that is the extreme case). Something I discovered is that the performance of dragging goes WAY

This is obviously rough draft and not thoroughly tested, but it seems to work. If you''d like, give it a try (load it after you load prototype.js): Function.prototype.bindAsEventListener = function(object) { var __method = this; return function(event) { return __method.call(object, new SuperEvent(event || window.event)); } } var SuperEvent = Class.create();

1. Create a separate class that has your highlight/unhighlight behavior in it, and extend just the element you want to highlight with that class... like this (also allows you to easily apply this behavior elsewhere when you need it in the future): Object.extend(this.el, HighlightBehaviorClass.prototype) 2. When defining your event handlers, assign them to variables so you have a

Hi, i''ve been experimentating with dynamicCSS.js [1] to hide content only if JavaScript is enabled. It works pretty well and fires before onload to avoid the flash of visible content. Now i''m wondering if there is a Prototype way of doing this. [1] http://www.bobbyvandersluis.com/articles/dynamicCSS.php My main problem is that Prototype functions like Element.toggle() do

Hi, please consider this stripped down example: new Ajax.Request(''foo.php'', { onSuccess: function(t, json) { alert(json.myParam); } }); According to http://www.sergiopereira.com/articles/prototype.js.html, the second param is supposed to be the evaluated json object IF the X-JSON header is send in the response. I send the header in my script. However, the json var

>From looking at the Prototype code, it looks like any text in the ''X-JSON'' header will be eval''d and passed as the second parameter to your onSuccess handler. Your handler function could then be (using all the power of Prototype): var handlerFunc = function(t, json) { // Update info container Element.update(''someId'', json.foo); } But your

Dear Ogg Vorbis, I'm a senior in Information Technology, and my thesis is on Audio Watermarking. As a new starter in audio, I really need your help, and suggestions. I think in order to persue something on Audio I have to know much details about audio formats. So could you please show me where I can find the documents about the information I need ? Finally,could you please answer a confused

In the prototype.js library, what doe the $$ function do, and how do you use it --Will Merrell

Hi all. I have got situation that I made element draggable - and when element is dragged I want to start some action (e.g. shown AJAX indicator, and change one of CSS class in dragging element). What is the best way to achieve this? I search source code of the Draggable and I saw that there is 2 method: Draggable.initDrag and Draggable.endDrag so it looks like in initDrag method i should

I would like to share a modification to bindAsEventListener() that might be useful to some of you. It makes it possible to do function show(event, number) { alert(Event.element(event).id + " = " + number); } Event.observe("el1", "click", show.bindAsEventListener(this, 5); Event.observe("el2", "click", show.bindAsEventListener(this, 10); That

I have a continuous loop running in an external library that I am calling from C (R API). This loop is processing events in real time with the possibility of significant lag between events. When processing an event, I can make use of R_CheckUserInterrupt, but while the external library code is waiting on a new event, I don't have an opportunity to call this - my entry points are only on

I have a piece of code that "waits" for body onload. Every 30ms, it tests $(''body''). Seems that isn''t always good enough. I''ve hit situations where the DOM is "partially" loaded somehow. I fixed matters by setting a global flag... <body onload="bodyLoaded=true;"> which provides a better test... of course I could

I have created a JavaScript object which is initialized for some input fields, fieldsets, and divs on the page. With each object i attach a mouseover and mouseout event that highlights and un-highlights. Also on mouseout i am trying to display the id of the object to a console. The highlighting works except for cases when an object is the child of another object. In this case both are highlighted

I ran 2 tests. One using proto''s Event.observe, and another using an in-line handler of the "keydown" event in a textbox. Using .bindAsEventListener, the event.keyCode is always returning a capital letter, no matter what. The in-line event handler returns lowercase vs. uppercase correctly... What''s going on? I guess I find it hard to believe no one has tried

Hello, I have created a ticket for an enhancement of the autocompleter to show the options immediately when the field gets focus. Right now at least one character must be typed for autocomplete to kick in. http://dev.rubyonrails.org/ticket/5435 I have also made some code changes directly in the script Event.observe(this.element, "blur", this.onBlur.bindAsEventListener(this));

Currently I am not getting much traffic on my site, when I visit my site after a long interval I get the dreaded "Rails application error" in Mozilla/ "Internal server error" in IE.Once I click refresh then the site comes to life. My guess is this is due to the fact that all FCGI process have died and there are no active listeners. Has anyone else experienced this issue. How

If that doesn''t work, then you''ve done something wrong somewhere. ''Cause it works for IE for me and everyone else. The only advantage I see with the YUI toolkit is that it''ll defer attaching events to elements that do not yet exist in the DOM. Big whoop, only a sloppy programmer would try to attach an event to a non-existant element. With Prototype, you can

Hey all, I working on a project, but I am not sure I can do what I want to do. The following works beautifully: Event.observe(el, ''click'', function () { this.className += " myClass"; return false; }); I have also tried doing this: this.varname = ''test''; Event.observe(el, ''click'', function () { alert (this.varname); }.bind