J Query Loader

Homepage: http://foswiki.org/Extensions/JQueryPlugin
Author(s): Michael Daum
Version: 3.01

This plugin allows to delay rendering parts of a page that are loaded later on asynchronously and patched into the page.

On this page:

Usage

Add the %JQREQUIRE{"loader"}% macro to the page that you want to use this module on. Then add the jqLoader css class to the div (or verbatim) element which will serve as a container for the content to be loaded. Any jqLoader container requires either an url or a section parameter to specify the location from where to load the content.

Parameter are specified using HTML5 data, as in

<div class="jqLoader" data-key1="value1" data-key2="value2" ...></div>

Parameter Description Default
url the full url from where the content, e.g. url:'https://the-data-mine.com/MyWeb/MyTopic %SCRIPTURLPATH{"view"}/<web>/<topic>
web the web from where to load content current web
topic the topic from where to load content current topic
section the section within the topic (see Var STARTSECTION)  
select jQuery selector to extract a specific node from the retrieved data  
params url parameter that are sent to the server {"skin":"text"}
mode specify whether the content is either loaded automatically or by clicking on the container; possible values: auto, manual auto
placeholder the image to be displayed as long as the content hasn't been loaded
show-effect the effect used when showing the loaded content; possible values are listed in J Query Animate fadeIn
hide-effect the effect when hiding the loaded content; possible values are listed in J Query Animate fadeOut
delay additional time in miliseconds to delay fetching the content from the content; specifying 0 means load the content immediately; any other value will wait that time until issuing the request 0
onload a JavaScript function called when the content has been loaded  
beforeload a JavaScript function called before the content is requested  
finished a JavaScript function called when the content has been loaded and displayed on the page  

The jqLoader element is able to receive JavaScript events and process them accordingly. Similarly these events can be used to hook your own callbacks to be processed when they are fired.

EventSorted ascending Description
beforeload.jqLoader is triggered before requesting the content from the backend (see beforeload parameter above)
finished.jqLoader is triggered when content has been loaded and finally been displayed on the page (see finished parameter above)
onload.jqLoader is triggered when the content has been successfully been loaded (see onload parameter above)
refresh.jqLoader when triggered will reload the content from the backend

Examples

%JQREQUIRE{"loader"}%
<div class="jqLoader" data-section="recentchanges" id="myLoader">
<verbatim>
%STARTSECTION{"recentchanges"}%<!-- -->
%SEARCH{
    "'1'" 
    web="%BASEWEB%" 
    type="query" 
    nonoise="on" 
    order="modified" 
    reverse="on"
    limit="10"
    format="<p class='foswikiSearchResult'>[[$web.$topic]] $date - $rev - $wikiusername</p>"
}%
<!-- -->%ENDSECTION{"recentchanges"}%
</verbatim>
</div>

... if installed:

Effect:  
Refresh
Topic revision: r1 - 10 Jan 2019, ProjectContributor
 

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