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Man Pages


Manual Reference Pages  -  HTML::PROTOTYPE::JS (3)

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NAME

HTML::Prototype::Js - prototype library, embedded in perl

CONTENTS

SYNOPSIS



    our $prototype = do { package HTML::Prototype::Js; local $/; <DATA> };



DESCRIPTION

This is the actual Prototype library embedded in a perl __DATA__ section, for easy inclusion in HTML::Prototype.

NEW SYNTAX

The prototype library provides some functions and classes which effectively change the basic syntax of the JavaScript you write.
$(element) This function takes an element / element list and gets all string elements using document.getElementbyId. This is probably one of the most common functions when using javascript for web development, so it will save you a lot of typing.
Class This uses fucntion references to allow namespace-like Class structures in javascript.
Object.extend Simple inheritance for javacsript. Will set all properties of the child in the parent.
Function.bind Allow function refs to be full object method references, through the use of extend and apply
Try.these Simple try/catch for a list of functions, will return the return value of the first that doesn’t throw an exception.
Array.push implement push for arrays. returns number of elements in result.
Function.apply Call a function on a given object, using eval.

JS OBJECTS

The Prototype library provides a number of classes you can use to improve interaction with the end user.
Ajax Provides one useful function, getTransport. This function will return a XMLHttpRequest object suitable for your browser.
Ajax.Base An abstract base class for the Ajax objects described below. Sets some common options for Ajax objects;
<B>method:B> http method, defaults to post.
<B>asynchronous:B> process in the background, true/false, defaults to true.
<B>parameters:B> extra parameters, defaults to blank.
Ajax.Updater a subclass of Ajax.Base, this class uses Ajax.Request to populate a container in your web page. Takes container, url and Ajax.Base options as paramters.
Ajax.Request This object represents a plain ajax request. It extends base to add a constructor, as well as some events to handle events. The constructor takes an url, as well as the options described in Ajax.Base. Currently handles the following events:
’Uninitialized’, ’Loading’, ’Loaded’, ’Interactive’, ’Complete’
Effect.Appear Takes an element, and makes that element appear through a fade.
Effect.ContentZoom Takes an element, and zooms the content of that element.
Effect.Fade Takes an element, and makes that element fade out and disappear.
Effect.Highlight Takes an element, and does a highlight of that element.
Effect.Puff Takes an element, and makes that element blow up and disappear. (As in disappear in a puff of smoke).
Effect.Scale Takes an element, and a size, in percent, and scales that element to the given size. If it’s a div, the initial size will have to be given in EM. No such restrictions for pictures.
Effect.Squish Takes an element, and shrinks that element until it disappears.
Element A collection of functions related to basic elements. takes one or more elements.
<B>toggle:B> Toggles the element display style.
<B>hide:B> Turns off the element’s display style.
<B>show:B> Turns on the element’s display style.
<B>remove:B> Delete this element from the DOM.
<B>getHeight:B> Get the element height.

Also provides a convenience object, Toggle, with one method display which aliases to toggle, so you can call it as
Toggle.display(element)

Field Adds some useful functions to HTML Fields with several elements:
<B>clear:B> remove all content.
<B>focus:B> Give the element focus.
<B>present:B> returns true if all arguments are filled in, false otherwise.
<B>select(element):B> Select the given element in a form.
<B>activate(element):B> give the selected element focus, and select it.
Form Some useful utilies for HTML Forms. all of these take a form element as sole argument.
<B>serialize:B> returns a URL serialized version of a given form.
<B>getElements:B> returns all elements in the form.
<B>disable:B> blurs and disables every element in the form.
<B>focusFirstElement:B> Give first element in the form focus.
<B>reset:B> reset all form elements.
Form.Element Some useful objects for Form Field Elements. These take an element as the sole argument.
<B>serialize:B> url encode the element for use in a URI string.
<B>getValue:B> returns the value of the given element.
Form.Element.Observer
Form.Element.Serializers Serializers for various element types. Takes the input element as argument.
<B>input:B> determines the element type, and chooses the right serializer.
<B>inputSelector:B> serialize checkbox/radio.
Form.Element.Observer
Insertion This can be used in place of a innerHTML, to insert the content into the dom.
Insertion.Before Puts content before a given dom node.
Insertion.Top Puts content at the top of a given dom node.
Insertion.Bottom Puts content at the bottom of a given dom node.
Insertion.After Puts content after a given dom node.
PeriodicalExecuter This object takes two parameters, a reference to a callback function, and a frequency in seconds. It will execute the callback every <frequency> second.

SEE ALSO

HTML::Prototype, Catalyst::Plugin::Prototype <http://prototype.conio.net/>

AUTHOR

Sebastian Riedel, sri@oook.de Marcus Ramberg, mramberg@cpan.org

Built around Prototype by Sam Stephenson. Much code is ported from Ruby on Rails javascript helpers.

LICENSE

This library is free software. You can redistribute it and/or modify it under the same terms as perl itself.
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perl v5.20.3 HTML::PROTOTYPE::JS (3) 2016-04-03

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