Checkbox Filtering Using MooTools ElementFilter

Written by David Walsh on February 4, 2010 · 9 Comments

When I first wrote MooTools ElementFilter, I didn't think much of it. Fast forward eight months later and I've realized I've used the plugin a billion times. Hell, even one of the "big 3" search engines is using it for their maps application. There's one more place I'd like to use it. My employer uses a basic SPAM filtering system which allows me to see emails that were incorrectly (or correctly) caught in SPAM, click a checkbox, and click a "Deliver" button. The problem is that it will catch a bunch of valid emails with very similar subject lines, so I have to hunt down all of the emails, check the email's checkbox, and keep searching. Inefficient to say the least. That's why I've used ElementFilter to find LABEL elements with the given search text and automatically check their checkboxes.

The Sample HTML

<ul id="my-list">
<li><input type="checkbox" id="chkADDRESS" /> <label for="chkADDRESS">ADDRESS</label></li>
<li><input type="checkbox" id="chkAPPLET" /> <label for="chkAPPLET">APPLET</label></li>
<li><input type="checkbox" id="chkAREA" /> <label for="chkAREA">AREA</label></li>
<li><input type="checkbox" id="chkA" /> <label for="chkA">A</label></li>
<li><input type="checkbox" id="chkBASE" /> <label for="chkBASE">BASE</label></li>
<li><input type="checkbox" id="chkBASEFONT" /> <label for="chkBASEFONT">BASEFONT</label></li>
<li><input type="checkbox" id="chkBIG" /> <label for="chkBIG">BIG</label></li>
<!-- ... more ... -->
</ul>

I've used a simple list of HTML elements for my example. Having 100 "VIAGRA!!!" labels really wouldn't be helpful.

The MooTools JavaScript

/* usage */
window.addEvent('domready',function() {
	var myFilter = new ElementFilter('search-term', '#my-list label', {
		trigger: 'keyup',
		cache: true,
		onShow: function(element) {
			$(element.get('for')).checked = true;
		},
		onHide: function(element) {
			$(element.get('for')).checked = false;
		}
	});
});

If you aren't familiar with ElementFilter, be sure to read the original post. The only code specific to my purpose is in the onShow and onHide methods. Awesome!

Give it a shot. I'll be bribing my IT team to put something like this in place. It will make managing SPAM much easier!

Comments

  1. Nice! Can this be extended with regular expressions?

  2. David – this is a usability masterpiece. I salute you!

  3. @Chris the Developer: As well you should. ;)

  4. David, simply amazing! You keep on rocking with every Mootools solution.

  5. First time in your blog! Seems quite interesting and of course informative!

  6. rakesh juyal February 17, 2010

    Nice one. How about enhancing the code to support multiple search term.

    like if the search term is ap;c then it should select all checkboxes whose label starts with ap [ applet ] or c [ caption, center, cite, code ]

  7. rakesh juyal February 17, 2010

    Nice one. How about enhancing the code to support multiple search term.

    like if the search term is ap;c then it should select all checkboxes whose label starts with ap [ applet ] or c [ caption, center, cite, code ]

  8. Mangesh vyas July 22, 2010

    Hello sir

    Its really good as always………
    Thanks

  9. Can this be done with jquery

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