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Joomla! Community Forum • View topic - Component and modules tutorials
FancyUpload: Swiff meets Ajax
Harald Kirschner has created a new version of FancyUpload "a file-input replacement which features an unobtrusive, multiple-file selection menu and queued upload with an animated progress bar."
A good example is the Queued Photo Uploader which is coded by:
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var swiffy = new FancyUpload2($('demo-status'), $('demo-list'), {
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'url': $('form-demo').action,
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'fieldName': 'photoupload',
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'path': '../../source/Swiff.Uploader.swf',
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'onLoad': function() {
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$('demo-status').removeClass('hide');
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$('demo-fallback').destroy();
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}
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});
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/**
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* Various interactions
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*/
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$('demo-browse-all').addEvent('click', function() {
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swiffy.browse();
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return false;
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});
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$('demo-browse-images').addEvent('click', function() {
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swiffy.browse({'Images (*.jpg, *.jpeg, *.gif, *.png)': '*.jpg; *.jpeg; *.gif; *.png'});
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return false;
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});
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$('demo-clear').addEvent('click', function() {
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swiffy.removeFile();
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return false;
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});
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$('demo-upload').addEvent('click', function() {
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swiffy.upload();
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return false;
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});
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Timeframe: Prototype date range component
Stephen Celis got tired of wiring together two date pickers for the common use case of grabbing a date range, so he created timeframe, which is "Click-draggable. Range-makeable. A better calendar."
Based on Prototype, you can whip up some code such as:
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new Timeframe('calendars', {
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startfield: 'start',
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endfield: 'end',
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previousbutton: 'previous',
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todaybutton: 'today',
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nextbutton: 'next',
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resetbutton: 'reset' });
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And then you get:
Check out the live example to really see it at work.
Making application modules communicate with each other using Decoupling
I've been talking about event driven application design in JavaScript in January last year and inspired Caridy Patiño to write his Bubbling Library based on these ideas.
Caridy now upped the ante a bit by talking about decoupling using the bubbling library over on the YUI blog.
In essence, his solution allows you to have custom events on application modules and listen to them independent of execution order or availability. Simply using custom events can get you in a pickle if you make yourself dependent on their order. With the decoupling solution proposed by Caridy this becomes one less issue to worry about.
Joomla
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Once Joomla! is installed and running, it is simple for even non-technical users to add or edit content, update images, and to manage data.
For many people, the true power of Joomla! lies in the application framework that makes it possible for thousands of developers around the world to create powerful add-ons and extensions many free and open source but also there are many others commercially available.
Joomla has over 2700 extensions developed and available.
A demo is available (registration required.)
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Tutorials from a site operated by one of Joomla’s developers.
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License:GPL