Import legacy nurinda.co.id website

wp-content/plugins/Ultimate_VC_Addons/assets/js/jquery-appear.js

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+/** jQuery.bsf_appear
+ * https://github.com/bas2k/jquery.bsf_appear/
+ * http://code.google.com/p/jquery-bsf_appear/
+ *
+ * Copyright (c) 2009 Michael Hixson
+ * Copyright (c) 2012 Alexander Brovikov
+ * Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php)
+ */
+(function($) {
+	$.fn.bsf_appear = function(fn, options) {
+		var settings = $.extend({
+			//arbitrary data to pass to fn
+			data: undefined,
+			//call fn only on the first bsf_appear?
+			one: true,
+			// X & Y accuracy
+			accX: 0,
+			accY: 0
+		}, options);
+		return this.each(function() {
+			var t = $(this);
+			//whether the element is currently visible
+			t.bsf_appeared = false;
+			if (!fn) {
+				//trigger the custom event
+				t.trigger('bsf_appear', settings.data);
+				return;
+			}
+			var w = $(window);
+			//fires the bsf_appear event when appropriate
+			var check = function() {
+				//is the element hidden?
+				if (!t.is(':visible')) {
+					//it became hidden
+					t.bsf_appeared = false;
+					return;
+				}
+				//is the element inside the visible window?
+				var a = w.scrollLeft();
+				var b = w.scrollTop();
+				var o = t.offset();
+				var x = o.left;
+				var y = o.top;
+				var ax = settings.accX;
+				var ay = settings.accY;
+				var th = t.height();
+				var wh = w.height();
+				var tw = t.width();
+				var ww = w.width();
+				if (y + th + ay >= b &&
+					y <= b + wh + ay &&
+					x + tw + ax >= a &&
+					x <= a + ww + ax) {
+					//trigger the custom event
+					if (!t.bsf_appeared) t.trigger('bsf_appear', settings.data);
+				} else {
+					//it scrolled out of view
+					t.bsf_appeared = false;
+				}
+			};
+			//create a modified fn with some additional logic
+			var modifiedFn = function() {
+				//mark the element as visible
+				t.bsf_appeared = true;
+				//is this supposed to happen only once?
+				if (settings.one) {
+					//remove the check
+					w.unbind('scroll', check);
+					var i = $.inArray(check, $.fn.bsf_appear.checks);
+					if (i >= 0) $.fn.bsf_appear.checks.splice(i, 1);
+				}
+				//trigger the original fn
+				fn.apply(this, arguments);
+			};
+			//bind the modified fn to the element
+			if (settings.one) t.one('bsf_appear', settings.data, modifiedFn);
+			else t.bind('bsf_appear', settings.data, modifiedFn);
+			//check whenever the window scrolls
+			w.scroll(check);
+			//check whenever the dom changes
+			$.fn.bsf_appear.checks.push(check);
+			//check now
+			(check)();
+		});
+	};
+	//keep a queue of bsf_appearance checks
+	$.extend($.fn.bsf_appear, {
+		checks: [],
+		timeout: null,
+		//process the queue
+		checkAll: function() {
+			var length = $.fn.bsf_appear.checks.length;
+			
+			if (length > 0){
+				while (length--) {
+					($.fn.bsf_appear.checks[length])();
+				}
+			}
+		},
+		//check the queue asynchronously
+		run: function() {
+			if ($.fn.bsf_appear.timeout) {
+				clearTimeout($.fn.bsf_appear.timeout);
+				$.fn.bsf_appear.timeout = setTimeout($.fn.bsf_appear.checkAll, 20);
+			} else {
+				$.fn.bsf_appear.timeout = setTimeout($.fn.bsf_appear.checkAll, 20);
+			}
+		}
+	});
+	//run checks when these methods are called
+	$.each(['append', 'prepend', 'after', 'before', 'attr',
+		'removeAttr', 'addClass', 'removeClass', 'toggleClass',
+		'remove', 'css', 'show', 'hide'], function(i, n) {
+		var old = $.fn[n];
+		if (old) {
+			$.fn[n] = function() {
+				var r = old.apply(this, arguments);
+				$.fn.bsf_appear.run();
+				return r;
+			}
+		}
+	});
+})(jQuery);