Add mousewheel plugin to jquery library

phpgwapi/js/jquery/mousewheel/mousewheel.js

@@ -0,0 +1,93 @@
+//
+// jQuery mousewheel extension
+//
+
+/*! Copyright (c) 2011 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: 3.0.6
+ *
+ * Requires: 1.2.2+
+ */
+
+/**
+ * 
+ * @param {type} $
+ * @returns {undefined}
+ */
+(function($) {
+
+var types = ['DOMMouseScroll', 'mousewheel'];
+
+if ($.event.fixHooks) {
+	for ( var i=types.length; i; ) {
+		$.event.fixHooks[ types[--i] ] = $.event.mouseHooks;
+	}
+}
+
+$.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 = $.event.fix(orgEvent);
+	event.type = "mousewheel";
+
+	// Old school scrollwheel delta
+	if ( orgEvent.wheelDelta ) { delta = orgEvent.wheelDelta/120; }
+	if ( orgEvent.detail     ) { delta = -orgEvent.detail/3; }
+
+	// New school multidimensional scroll (touchpads) deltas
+	deltaY = delta;
+
+	// Gecko
+	if ( orgEvent.axis !== undefined && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
+		deltaY = 0;
+		deltaX = -1*delta;
+	}
+
+	// Webkit
+	if ( orgEvent.wheelDeltaY !== undefined ) { deltaY = orgEvent.wheelDeltaY/120; }
+	if ( orgEvent.wheelDeltaX !== undefined ) { deltaX = -1*orgEvent.wheelDeltaX/120; }
+
+	// Add event and delta to the front of the arguments
+	args.unshift(event, delta, deltaX, deltaY);
+
+	return ($.event.dispatch || $.event.handle).apply(this, args);
+}
+
+})(jQuery);