Refactored and lots of modification. See README.md.

src/_h5ai/js/inc/ext/qrcode.js

@@ -0,0 +1,56 @@
+
+module.define('ext/qrcode', [jQuery, 'core/settings', 'core/event'], function ($, allsettings, event) {
+
+	var defaults = {
+			enabled: false,
+			size: 150
+		},
+
+		settings = _.extend({}, defaults, allsettings.qrcode),
+
+		template = '<div id="context"><div class="qrcode" /></div>',
+
+		$context, hideTimeoutId,
+
+		update = function (entry) {
+
+			$context.find('.qrcode').empty().qrcode({
+				render: Modernizr.canvas ? 'canvas' : 'div',
+				width: settings.size,
+				height: settings.size,
+				color: '#333',
+				text: 'http://' + document.domain + entry.absHref
+			});
+		},
+
+		onMouseenter = function (entry) {
+
+			if (!entry.isFolder()) {
+				update(entry);
+				clearTimeout(hideTimeoutId);
+				$context.stop(true, true).fadeIn(400);
+			}
+		},
+
+		onMouseleave = function (entry) {
+
+			hideTimeoutId = setTimeout(function () {
+
+				$context.stop(true, true).fadeOut(400);
+			}, 200);
+		},
+
+		init = function () {
+
+			if (!settings.enabled) {
+				return;
+			}
+
+			$context = $(template).appendTo('body');
+
+			event.sub('entry.mouseenter', onMouseenter);
+			event.sub('entry.mouseleave', onMouseleave);
+		};
+
+	init();
+});