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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Hamster.js</title>
<meta name="description" content="A standalone javascript library for cross-browser mouse wheel support.">
<meta name="viewport" content="width=device-width">
<link rel="icon" href="http://monospaced.com/favicon.ico" type="image/x-icon">
<style>
body {
margin: 0 auto;
max-width: 93.75%;
width: 880px;
background: #E7F3FF;
color: #1C000E;
text-shadow: 0 1px 0 #FFF;
font: 13px/1.230769231 sans-serif;
}
a {
color: #0074E7;
text-decoration: none;
}
a:focus,
a:hover,
a:active {
color: #0067CE;
}
h1 {
margin: 16px 0 0 24px;
font-weight: normal;
font-size: 39px;
}
small {
display: block;
margin: 0 0 11px 24px;
font-size: 11px;
line-height: 1.181818182;
}
h2 {
margin: 16px 0 8px 24px;
font-weight: normal;
}
ol {
margin: 0 0 16px 0;
padding: 0 0 0 24px;
}
li {
padding: 4px 24px 4px 0;
}
p {
margin: 0 0 16px 24px;
}
pre {
margin: 0 0 0 24px;
font-size: 12px;
}
#info {
float: left;
margin-right: 16px;
width: 50%;
}
#tests {
position: relative;
overflow: hidden;
height: 480px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
text-align: right;
}
#tests p {
margin: 16px 16px 16px 0;
color: #fff;
text-shadow: 0 -1px 0 #030001;
}
#test1 {
float: left;
width: 12.5%;
height: 25%;
background-color: #4F0027;
}
#test2 {
float: left;
width: 12.5%;
height: 25%;
background-color: #690034;
}
#test3 {
float: left;
width: 12.5%;
height: 25%;
background-color: #820041;
}
#test4 {
float: left;
width: 12.5%;
height: 25%;
background-color: #4F0027;
}
#test5 {
float: left;
width: 50%;
height: 100%;
background-color: #690034;
}
#test6 {
float: left;
margin: 25%;
width: 50%;
height: 50%;
background-color: #820041;
}
#test7 {
float: left;
margin: 25%;
width: 50%;
height: 50%;
background-color: #4F0027;
}
#logger {
position: absolute;
top: 25%;
left: 0;
padding: 0;
list-style: none;
margin: 0;
overflow: hidden;
overflow-y: scroll;
width: 50%;
height: 75%;
background-color: #FFE8F3;
}
#logger li {
padding: 4px 16px;
background-color: #FFF;
}
#logger li:nth-child(even) {
background-color: #FFE8F3;
}
#userAgent {
float: right;
margin: 16px 0 16px 24px;
max-width: 440px;
text-align: right;
}
#forceScroll {
clear: both;
height: 1000px;
}
@media all and (max-width: 650px) {
#info {
float: none;
width: auto;
}
#logger p {
text-align: left;
}
}
</style>
</head>
<body>
<h1>Hamster.js</h1>
<p><a href="http://github.com/monospaced/hamster.js">github.com/monospaced/hamster.js</a></p>
<div id="info">
<p>A standalone javascript library for cross-browser mouse wheel support.</p>
<p>In addition to normalising the wheel event, the event callback receives 3 extra arguments which are the normalized “deltas” of the mouse wheel.</p>
<pre>Hamster(el).wheel(function(event, delta, deltaX, deltaY){
console.log(delta, deltaX, deltaY);
});
</pre>
<p>No jQuery or other libraries required, but an <a href="https://github.com/monospaced/angular-mousewheel">adapter for AngularJS</a> is available. Tested in these <a href="http://monospaced.github.io/obs/">core browsers</a>.
<h2>Tests</h2>
<ol>
<li>Plain wheel() with a function passed in, does not prevent default. (Also logs the value of pageX and pageY event properties.)</li>
<li>Should prevent the default action.</li>
<li>Should not log an event. Testing unwheel().</li>
<li>Has two handlers.</li>
<li>Is like <i>2.</i> but has children. The children should not scroll until mousing over them.</li>
<li>Is like <i>5.</i> but should not scroll children or parents.</li>
<li>Is like <i>6.</i> but has no children. It will propagate the event and scroll <i>6.</i> as well.</li>
</ol>
<p><a href="http://monospaced.github.io">Monospaced Labs</a></p>
</div>
<div id="tests">
<div id="test1"><p>1.</p></div>
<div id="test2"><p>2.</p></div>
<div id="test3"><p>3.</p></div>
<div id="test4"><p>4.</p></div>
<div id="test5">
<p>5.</p>
<div id="test6">
<p>6.</p>
<div id="test7"><p>7.</p></div>
</div>
</div>
<ul id="logger"></ul>
</div>
<p id="userAgent"></p>
<div id="forceScroll"></div>
<script src="hamster.js"></script>
<script>
(function() {
document.getElementById('userAgent').innerHTML = navigator.userAgent;
var logger = document.getElementById('logger'),
node = document.createElement('li');
function log(msg){
var logNode = node.cloneNode();
logNode.innerHTML = msg;
logger.appendChild(logNode);
logger.scrollTop = 999999;
};
// test 1
var test1 = document.getElementById('test1');
var hammer1 = Hamster(test1);
hammer1.wheel(function(event, delta, deltaX, deltaY){
var o = '';
if (delta > 0) {
o = '#test1: up ('+delta+')';
} else if (delta < 0) {
o = '#test1: down ('+delta+')';
}
if (deltaX > 0) {
o = o + ', east ('+deltaX+')';
} else if (deltaX < 0) {
o = o + ', west ('+deltaX+')';
}
if (deltaY > 0) {
o = o + ', north ('+deltaY+')';
} else if (deltaY < 0) {
o = o + ', south ('+deltaY+')';
}
if (o != '') {
log(o);
}
var pageX = event.pageX || event.originalEvent.pageX || event.originalEvent.clientX,
pageY = event.pageY || event.originalEvent.pageY || event.originalEvent.clientX;
log('pageX: ' + pageX + ', pageY: ' + pageY);
});
// test 2
var test2 = document.getElementById('test2');
Hamster(test2).wheel(function(event, delta, deltaX, deltaY){
var o = '';
if (delta > 0) {
o = '#test2: up ('+delta+')';
} else if (delta < 0) {
o = '#test2: down ('+delta+')';
}
if (deltaX > 0) {
o = o + ', east ('+deltaX+')';
} else if (deltaX < 0) {
o = o + ', west ('+deltaX+')';
}
if (deltaY > 0) {
o = o + ', north ('+deltaY+')';
} else if (deltaY < 0) {
o = o + ', south ('+deltaY+')';
}
if(o != '') {
log(o);
}
event.preventDefault();
});
// test 3
var test3 = document.getElementById('test3');
var hamsterTest3 = Hamster(test3);
hamsterTest3.wheel(function(event, delta, deltaX, deltaY){
log('#test3: I should not have been logged');
});
hamsterTest3.unwheel();
// test 4
var test4 = document.getElementById('test4');
function testRemoval2() {
log('#test4: I should not have been logged');
};
Hamster(test4).wheel(function(event, delta, deltaX, deltaY){
var o = '';
if (delta > 0) {
o = '#test4: up ('+delta+')';
} else if (delta < 0) {
o = '#test4: down ('+delta+')';
}
if (deltaX > 0) {
o = o + ', east ('+deltaX+')';
} else if (deltaX < 0) {
o = o + ', west ('+deltaX+')';
}
if (deltaY > 0) {
o = o + ', north ('+deltaY+')';
} else if (deltaY < 0) {
o = o + ', south ('+deltaY+')';
}
if(o != '') {
log(o);
}
event.preventDefault();
}).wheel(testRemoval2).wheel(function(event, delta, deltaX, deltaY){
var o = '';
if (delta > 0) {
o = '#test4: up ('+delta+')';
} else if (delta < 0) {
o = '#test4: down ('+delta+')';
}
if (deltaX > 0) {
o = o + ', east ('+deltaX+')';
} else if (deltaX < 0) {
o = o + ', west ('+deltaX+')';
}
if (deltaY > 0) {
o = o + ', north ('+deltaY+')';
} else if (deltaY < 0) {
o = o + ', south ('+deltaY+')';
}
if(o != '') {
log(o + ' - 2nd handler');
}
event.preventDefault();
}).unwheel(testRemoval2);
// test 5
var test5 = document.getElementById('test5');
Hamster(test5).wheel(function(event, delta, deltaX, deltaY){
var o = '';
if (delta > 0) {
o = '#test5: up ('+delta+')';
} else if (delta < 0) {
o = '#test5: down ('+delta+')';
}
if (deltaX > 0) {
o = o + ', east ('+deltaX+')';
} else if (deltaX < 0) {
o = o + ', west ('+deltaX+')';
}
if (deltaY > 0) {
o = o + ', north ('+deltaY+')';
} else if (deltaY < 0) {
o = o + ', south ('+deltaY+')';
}
if(o != '') {
log(o);
}
event.stopPropagation();
event.preventDefault();
});
// test 6
var test6 = document.getElementById('test6');
Hamster(test6).wheel(function(event, delta, deltaX, deltaY){
var o = '';
if (delta > 0) {
o = '#test6: up ('+delta+')';
} else if (delta < 0) {
o = '#test6: down ('+delta+')';
}
if (deltaX > 0) {
o = o + ', east ('+deltaX+')';
}
else if (deltaX < 0) {
o = o + ', west ('+deltaX+')';
}
if (deltaY > 0) {
o = o + ', north ('+deltaY+')';
}
else if (deltaY < 0) {
o = o + ', south ('+deltaY+')';
}
if(o != '') {
log(o);
}
event.stopPropagation();
event.preventDefault();
});
// test 7
var test7 = document.getElementById('test7');
Hamster(test7).wheel(function(event, delta, deltaX, deltaY){
var o = '';
if (delta > 0) {
o = '#test7: up ('+delta+')';
} else if (delta < 0) {
o = '#test7: down ('+delta+')';
}
if (deltaX > 0) {
o = o + ', east ('+deltaX+')';
} else if (deltaX < 0) {
o = o + ', west ('+deltaX+')';
}
if (deltaY > 0) {
o = o + ', north ('+deltaY+')';
} else if (deltaY < 0) {
o = o + ', south ('+deltaY+')';
}
if(o != '') {
log(o);
}
event.preventDefault();
});
})();
</script>
</body>
</html>