JQTwistyContrib

Lightweight twisty plugin

JQTwistyContrib is a lightweight twisty plugin implementing a subset of the features provided by TwistyPlugin, but using javascript only. This comes in handy when a twisty is needed but without having to render it using the Foswiki backend server.

A "twisty" is a collabsable area to hide/show certain areas of a webpage.

Usage

A twisty consists of two elements: a trigger and a container. When the trigger is clicked by the user, the container will be collapsed or expanded. The behavior of the twisty is configured using html5 data attributes part of the trigger element. Use the jqTwisty css class to install the twisty on a trigger element. The toggle container is then specified using a target argument, defaulting to the next adjacent html node in the tree,

%BUTTON{"Click me" class="jqTwisty"}%
<div>
Here comes the container.
</div>

Parameter

Name	Description	Default
openText	text of the trigger button when the container is hidden	html text of the trigger element
closeText	text to be displayed when the container is shown	same as openText
openImg	url of an image displayed when the container is hidden
closeImg	url of an image displayed when the container is shown
initialState	initial state of the container: can be 'open' or 'close'	close
remember	remember the state of the twisty using localStore	false
target	jquer selector of container(s) to toggle their visibility	next html node following the twisty trigger

Events

State change events

JQTwistyContrib will fire an event according to the state changes of the twisty. That way you'll be able to bind additional behaviors on its base, for instance when the twisty is fully open.

Event	Description
inited.twisty	the twisty has been initialized
beforeOpen.twisty	the twisty is about to be opened
afterOpen.twisty	the twisty has been opened
beforeClosed.twisty	the twisty is about to be closed
afterClose.twisty	the twisty has been closed

Access events

You might also fire an event on the twisty itself to change the state from within javascript. See the accordion example below coordinating multiple twisties.

Event	Description
open.twisty	opens the twist
close.twisty	closes the twist

Examples

Add a twisty to a <verbatim> section

Show Code

#include <iostream>
using namespace std;

int main() 
{
    cout << "Hello, World!";
    return 0;
}

Simple

open

Multiple containers

open

State changes

open

Accordion

Installation Instructions

You do not need to install anything in the browser to use this extension. The following instructions are for the administrator who installs the extension on the server.

Open configure, and open the "Extensions" section. "Extensions Operation and Maintenance" Tab → "Install, Update or Remove extensions" Tab. Click the "Search for Extensions" button. Enter part of the extension name or description and press search. Select the desired extension(s) and click install. If an extension is already installed, it will not show up in the search results.

You can also install from the shell by running the extension installer as the web server user: (Be sure to run as the webserver user, not as root!)

cd /path/to/foswiki
perl tools/extension_installer <NameOfExtension> install

If you have any problems, or if the extension isn't available in configure, then you can still install manually from the command-line. See https://foswiki.org/Support/ManuallyInstallingExtensions for more help.

Dependencies

Name	Version	Description
Foswiki::Plugins::JQueryPlugin	>=4.00	Required.

Change History

26 Oct 2020:	compatibility with jquery-3; added remember feature
16 Aug 2018:	maintenance and docu
17 Jul 2015:	added css classes to indicate twisty state
15 Mar 2014:	fixed syntax error in contrib stub
13 Dec 2013:	support html elements to be used as twisty toggles
12 Jun 2012:	initial release