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spinner: added mousewheel plugin to trunk/external.

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Ca-Phun Ung
Ca-Phun Ung committed May 11, 2009
1 parent f6b219f commit 2291be6a65f8b0a23ec1cf44546cda0bc7147423
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# Mouse Wheel ChangeLog


# 3.0.2

* Fixed delta being opposite value in latest Opera
* No longer fix pageX, pageY for older mozilla browsers
* Removed browser detection
* Cleaned up the code


# 3.0.1

* Bad release... creating a new release due to plugins.jquery.com issue :(


# 3.0

* Uses new special events API in jQuery 1.2.2+
* You can now treat "mousewheel" as a normal event and use .bind, .unbind and .trigger
* Using jQuery.data API for expandos


# 2.2

* Fixed pageX, pageY, clientX and clientY event properties for Mozilla based browsers


# 2.1.1

* Updated to work with jQuery 1.1.3
* Used one instead of bind to do unload event for clean up.


# 2.1

* Fixed an issue with the unload handler


# 2.0

* Major reduction in code size and complexity (internals have change a whole lot)


# 1.0

* Fixed Opera issue
* Fixed an issue with children elements that also have a mousewheel handler
* Added ability to handle multiple handlers
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# jQuery Mouse Wheel Plugin

A jQuery plugin that adds cross-browser mouse wheel support.

The latest stable release can be downloaded from the [project page](http://plugins.jquery.com/project/mousewheel)

## License

The mousewheel plugin is dual licensed *(just like jQuery)* under the [MIT](http://www.opensource.org/licenses/mit-license.php) and [GPL](http://www.opensource.org/licenses/gpl-license.php) licenses.

Copyright (c) 2009 [Brandon Aaron](http://brandonaaron.net)
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/*! Copyright (c) 2009 Brandon Aaron (http://brandonaaron.net)
* Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
* and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
* Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
* Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
*
* Version: 3.0.2
*
* Requires: 1.2.2+
*/

(function($) {

var types = ['DOMMouseScroll', 'mousewheel'];

$.event.special.mousewheel = {
setup: function() {
if ( this.addEventListener )
for ( var i=types.length; i; )
this.addEventListener( types[--i], handler, false );
else
this.onmousewheel = handler;
},

teardown: function() {
if ( this.removeEventListener )
for ( var i=types.length; i; )
this.removeEventListener( types[--i], handler, false );
else
this.onmousewheel = null;
}
};

$.fn.extend({
mousewheel: function(fn) {
return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
},

unmousewheel: function(fn) {
return this.unbind("mousewheel", fn);
}
});


function handler(event) {
var args = [].slice.call( arguments, 1 ), delta = 0, returnValue = true;

event = $.event.fix(event || window.event);
event.type = "mousewheel";

if ( event.wheelDelta ) delta = event.wheelDelta/120;
if ( event.detail ) delta = -event.detail/3;

// Add events and delta to the front of the arguments
args.unshift(event, delta);

return $.event.handle.apply(this, args);
}

})(jQuery);
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/* Copyright (c) 2009 Brandon Aaron (http://brandonaaron.net)
* Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
* and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
* Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
* Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
*
* Version: 3.0.2
*
* Requires: 1.2.2+
*/
(function(c){var a=["DOMMouseScroll","mousewheel"];c.event.special.mousewheel={setup:function(){if(this.addEventListener){for(var d=a.length;d;){this.addEventListener(a[--d],b,false)}}else{this.onmousewheel=b}},teardown:function(){if(this.removeEventListener){for(var d=a.length;d;){this.removeEventListener(a[--d],b,false)}}else{this.onmousewheel=null}}};c.fn.extend({mousewheel:function(d){return d?this.bind("mousewheel",d):this.trigger("mousewheel")},unmousewheel:function(d){return this.unbind("mousewheel",d)}});function b(f){var d=[].slice.call(arguments,1),g=0,e=true;f=c.event.fix(f||window.event);f.type="mousewheel";if(f.wheelDelta){g=f.wheelDelta/120}if(f.detail){g=-f.detail/3}d.unshift(f,g);return c.event.handle.apply(this,d)}})(jQuery);
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<!doctype html>
<html>
<head>
<title>Testing mousewheel plugin</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js"></script>
<script type="text/javascript" src="../jquery.mousewheel.js"></script>

<style>
#test1 {
background-color: #000;
width: 100px;
height: 100px;
color: #fff;
float: left;
}

#test2 {
background-color: #333;
width: 100px;
height: 100px;
color: #fff;
float: left;
}

#test3 {
background-color: #666;
width: 100px;
height: 100px;
color: #fff;
float: left;
}

#test4 {
background-color: #000;
width: 100px;
height: 100px;
color: #fff;
float: left;
}

#test5 {
background-color: #333;
padding: 5px;
width: 400px;
height: 400px;
color: #fff;
float: left;
}

#test6 {
background-color: #666;
padding: 5px;
width: 250px;
height: 250px;
color: #fff;
float: left;
}

#test7 {
background-color: #000;
padding: 5px;
width: 100px;
height: 100px;
color: #fff;
float: left;
}

#forceScroll {
clear: both;
height: 1000px;
}

#logger {
position: absolute;
top: 395px;
left: 12px;
width: 380px;
height: 290px;
overflow: auto;
}
</style>
<script type="text/javascript">
$(function() {
$('#userAgent').html(navigator.userAgent);


$('#test1')
.mousewheel(function(event, delta) {
if (delta > 0)
log('#test1: up ('+delta+')');
else if (delta < 0)
log('#test1: down ('+delta+')');

log('pageX: ' + event.pageX + ' pageY: ' + event.pageY );
});

$('#test2')
.mousewheel(function(event, delta) {
if (delta > 0)
log('#test2: up ('+delta+')');
else if (delta < 0)
log('#test2: down ('+delta+')');
return false; // prevent default
});

$('#test3')
.hover(function() { log('#test3: mouseover'); }, function() { log('#test3: mouseout'); })
.mousewheel(function(event, delta) {
log('#test3: I should not have been logged');
})
.unmousewheel();

var testRemoval = function(event, delta) {
log('#test4: I should not have been logged');
};

$('#test4')
.mousewheel(function(event, delta) {
if (delta > 0)
log('#test4: up ('+delta+')');
else if (delta < 0)
log('#test4: down ('+delta+')');
return false;
})
.mousewheel(testRemoval)
.mousewheel(function(event, delta) {
if (delta > 0)
log('#test4: up ('+delta+') from 2nd handler');
else if (delta < 0)
log('#test4: down ('+delta+') from 2nd handler');
return false;
})
.unmousewheel(testRemoval);

$('#test5')
.mousewheel(function(event, delta) {
if (delta > 0)
log('#test5: up ('+delta+')');
else if (delta < 0)
log('#test5: down ('+delta+')');

event.stopPropagation();
event.preventDefault();
});

$('#test6')
.mousewheel(function(event, delta) {
if (delta > 0)
log('#test6: up ('+delta+')');
else if (delta < 0)
log('#test6: down ('+delta+')');

event.stopPropagation();
event.preventDefault();
});

$('#test7')
.mousewheel(function(event, delta) {
if (delta > 0)
log('#test7: up ('+delta+')');
else if (delta < 0)
log('#test7 down ('+delta+')');

event.preventDefault();
});

function log(msg) {
$('#logger').append(msg+'<br>').scrollTop(999999);
};
});
</script>
</head>
<body>
<h1 id="banner">jQuery mousewheel.js - Test</h1>
<h2 id="userAgent"></h2>

<ul>
<li><strong>Test1</strong> is just using the plain on mousewheel() with a function passed in and does not prevent default. (Also logs the value of pageX and pageY event properties.)</li>
<li><strong>Test2</strong> should prevent the default action.</li>
<li><strong>Test3</strong> should only log a mouseover and mouseout event. Testing unmousewheel().</li>
<li><strong>Test4</strong> has two handlers.</li>
<li><strong>Test5</strong> is like Test2 but has children. The children should not scroll until mousing over them.</li>
<li><strong>Test6</strong> is like Test5 but should not scroll children or parents.</li>
<li><strong>Test7</strong> is like Test6 but has no children. It will propagate the event and scroll test 6 as well.</li>
</ul>


<div id="test1"><p>Test1</p></div>
<div id="test2"><p>Test2</p></div>
<div id="test3"><p>Test3</p></div>
<div id="test4"><p>Test4</p></div>
<div id="test5">
<p>Test5</p>
<div id="test6">
<p>Test6</p>
<div id="test7"><p>Test7</p></div>
</div>
</div>

<div id="logger"></div>

<div id="forceScroll"></div>
</body>
</html>

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