Creating Direction-Aware Hover Effect
Here’s another good CSS3 and jQuery tutorial from awesome web developer Mary Lou. Her creation is a direction-aware hover effect using these two elements.
Reminder: This only works on browsers that support CSS transactions.
Unordered list for thumbnails and descriptions overlays:
<ul id="da-thumbs" class="da-thumbs">
<li>
<a href="http://dribbble.com/shots/502538-Natalie-Justin-Cleaning">
<img src="images/7.jpg" />
<div><span>Natalie & Justin Cleaning by Justin Younger</span></div>
</a>
</li>
<li>
<!-- ... -->
</li>
<!-- ... -->
</ul>
Making description overlay absolute:
.da-thumbs li {
float: left;
margin: 5px;
background: #fff;
padding: 8px;
position: relative;
box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.da-thumbs li a,
.da-thumbs li a img {
display: block;
position: relative;
}
.da-thumbs li a {
overflow: hidden;
}
.da-thumbs li a div {
position: absolute;
background: rgba(75,75,75,0.7);
width: 100%;
height: 100%;
}
Defining some classes with Javascript. Animation class, some classes for initial positioning of description overlay and two classes for final position. The styles are separated for easier adjustments.
.da-thumbs li a div.da-animate {
-webkit-transition: all 0.3s ease;
-moz-transition: all 0.3s ease-in-out;
-o-transition: all 0.3s ease-in-out;
-ms-transition: all 0.3s ease-in-out;
transition: all 0.3s ease-in-out;
}
/* Initial state classes: */
.da-slideFromTop {
left: 0px;
top: -100%;
}
.da-slideFromBottom {
left: 0px;
top: 100%;
}
.da-slideFromLeft {
top: 0px;
left: -100%;
}
.da-slideFromRight {
top: 0px;
left: 100%;
}
/* Final state classes: */
.da-slideTop {
top: 0px;
}
.da-slideLeft {
left: 0px;
}
Below is the heart of the plugin.
this.$el.on( 'mouseenter.hoverdir, mouseleave.hoverdir', function( event ) {
var $el = $(this),
evType = event.type,
$hoverElem = $el.find( 'div' ),
direction = _self._getDir( $el, { x : event.pageX, y : event.pageY } ),
hoverClasses= _self._getClasses( direction );
$hoverElem.removeClass();
if( evType === 'mouseenter' ) {
$hoverElem.hide().addClass( hoverClasses.from );
clearTimeout( _self.tmhover );
_self.tmhover = setTimeout( function() {
$hoverElem.show( 0, function() {
$(this).addClass( 'da-animate' ).addClass( hoverClasses.to );
} );
}, _self.options.hoverDelay );
}
else {
$hoverElem.addClass( 'da-animate' );
clearTimeout( _self.tmhover );
$hoverElem.addClass( hoverClasses.from );
}
} );
You can view the DEMO and get the DOWNLOAD.
Check out the full tutorial by clicking on the image.
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