Add scroll wheel support.

This commit is contained in:
Jason A. Donenfeld 2011-05-16 02:51:33 -04:00
parent d869d0684d
commit 3c7fc8cfdd
2 changed files with 90 additions and 0 deletions

78
web/js/002-mousewheel.js Normal file
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@ -0,0 +1,78 @@
/*! Copyright (c) 2010 Brandon Aaron (http://brandonaaron.net)
* Licensed under the MIT License (LICENSE.txt).
*
* 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.
* Thanks to: Seamus Leahy for adding deltaX and deltaY
*
* Version: 3.0.4
*
* 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 orgEvent = event || window.event, args = [].slice.call( arguments, 1 ), delta = 0, returnValue = true, deltaX = 0, deltaY = 0;
event = $.event.fix(orgEvent);
event.type = "mousewheel";
// Old school scrollwheel delta
if ( event.wheelDelta ) { delta = event.wheelDelta/120; }
if ( event.detail ) { delta = -event.detail/3; }
// New school multidimensional scroll (touchpads) deltas
deltaY = delta;
// Gecko
if ( orgEvent.axis !== undefined && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
deltaY = 0;
deltaX = -1*delta;
}
// Webkit
if ( orgEvent.wheelDeltaY !== undefined ) { deltaY = orgEvent.wheelDeltaY/120; }
if ( orgEvent.wheelDeltaX !== undefined ) { deltaX = -1*orgEvent.wheelDeltaX/120; }
// Add event and delta to the front of the arguments
args.unshift(event, delta, deltaX, deltaY);
return $.event.handle.apply(this, args);
}
})(jQuery);

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@ -348,6 +348,18 @@ $(document).ready(function() {
}
return true;
});
$(document).mousewheel(function(event, delta) {
if (current_photo_cache == null)
return true;
if (delta < 0) {
window.location.href = $("#next").attr("href");
return false;
} else if (delta > 0) {
window.location.href = $("#back").attr("href");
return false;
}
return true;
});
$("#photo-box").mouseenter(function() {
$("#photo-links").stop().fadeTo("slow", 0.50).css("display", "inline");
});