Updated jquery and worked around performance issues in powertip plugin

1 files changed, 1324 insertions, 0 deletions

diff --git a/jquery/jquery.powertip-1.3.1.mod.js b/jquery/jquery.powertip-1.3.1.mod.js
new file mode 100644
index 0000000..197599c
--- /dev/null
+++ b/jquery/jquery.powertip-1.3.1.mod.js
@@ -0,0 +1,1324 @@
+/*!
+ PowerTip v1.3.1 (2018-04-15)
+ https://stevenbenner.github.io/jquery-powertip/
+ Copyright (c) 2018 Steven Benner (http://stevenbenner.com/).
+ Released under MIT license.
+ https://raw.github.com/stevenbenner/jquery-powertip/master/LICENSE.txt
+*/
+(function(root, factory) {
+	// support loading the plugin via common patterns
+	if (typeof define === 'function' && define.amd) {
+		// load the plugin as an amd module
+		define([ 'jquery' ], factory);
+	} else if (typeof module === 'object' && module.exports) {
+		// load the plugin as a commonjs module
+		module.exports = factory(require('jquery'));
+	} else {
+		// load the plugin as a global
+		factory(root.jQuery);
+	}
+}(this, function($) {
+	// useful private variables
+	var $document = $(document),
+		$window = $(window),
+		$body = $('body');
+
+	// constants
+	var DATA_DISPLAYCONTROLLER = 'displayController',
+		DATA_HASACTIVEHOVER = 'hasActiveHover',
+		DATA_FORCEDOPEN = 'forcedOpen',
+		DATA_HASMOUSEMOVE = 'hasMouseMove',
+		DATA_MOUSEONTOTIP = 'mouseOnToPopup',
+		DATA_ORIGINALTITLE = 'originalTitle',
+		DATA_POWERTIP = 'powertip',
+		DATA_POWERTIPJQ = 'powertipjq',
+		DATA_POWERTIPTARGET = 'powertiptarget',
+		EVENT_NAMESPACE = '.powertip',
+		RAD2DEG = 180 / Math.PI,
+		MOUSE_EVENTS = [
+			'click',
+			'dblclick',
+			'mousedown',
+			'mouseup',
+			'mousemove',
+			'mouseover',
+			'mouseout',
+			'mouseenter',
+			'mouseleave',
+			'contextmenu'
+		];
+
+	/**
+	 * Session data
+	 * Private properties global to all powerTip instances
+	 */
+	var session = {
+		tooltips: null,
+		isTipOpen: false,
+		isFixedTipOpen: false,
+		isClosing: false,
+		tipOpenImminent: false,
+		activeHover: null,
+		currentX: 0,
+		currentY: 0,
+		previousX: 0,
+		previousY: 0,
+		desyncTimeout: null,
+		closeDelayTimeout: null,
+		mouseTrackingActive: false,
+		delayInProgress: false,
+		windowWidth: 0,
+		windowHeight: 0,
+		scrollTop: 0,
+		scrollLeft: 0
+	};
+
+	/**
+	 * Collision enumeration
+	 * @enum {number}
+	 */
+	var Collision = {
+		none: 0,
+		top: 1,
+		bottom: 2,
+		left: 4,
+		right: 8
+	};
+
+	/**
+	 * Display hover tooltips on the matched elements.
+	 * @param {(Object|string)=} opts The options object to use for the plugin, or
+	 *     the name of a method to invoke on the first matched element.
+	 * @param {*=} [arg] Argument for an invoked method (optional).
+	 * @return {jQuery} jQuery object for the matched selectors.
+	 */
+	$.fn.powerTip = function(opts, arg) {
+		var targetElements = this,
+			options,
+			tipController;
+
+		// don't do any work if there were no matched elements
+		if (!targetElements.length) {
+			return targetElements;
+		}
+
+		// handle api method calls on the plugin, e.g. powerTip('hide')
+		if ($.type(opts) === 'string' && $.powerTip[opts]) {
+			return $.powerTip[opts].call(targetElements, targetElements, arg);
+		}
+
+		// extend options
+		options = $.extend({}, $.fn.powerTip.defaults, opts);
+
+		// instantiate the TooltipController for this instance
+		tipController = new TooltipController(options);
+
+		// hook mouse and viewport dimension tracking
+		initTracking();
+
+		// setup the elements
+		targetElements.each(function elementSetup() {
+			var $this = $(this),
+				dataPowertip = $this.data(DATA_POWERTIP),
+				dataElem = $this.data(DATA_POWERTIPJQ),
+				dataTarget = $this.data(DATA_POWERTIPTARGET),
+				title = $this.attr('title');
+
+			// attempt to use title attribute text if there is no data-powertip,
+			// data-powertipjq or data-powertiptarget. If we do use the title
+			// attribute, delete the attribute so the browser will not show it
+			if (!dataPowertip && !dataTarget && !dataElem && title) {
+				$this.data(DATA_POWERTIP, title);
+				$this.data(DATA_ORIGINALTITLE, title);
+				$this.removeAttr('title');
+			}
+
+			// create hover controllers for each element
+			$this.data(
+				DATA_DISPLAYCONTROLLER,
+				new DisplayController($this, options, tipController)
+			);
+		});
+
+		// attach events to matched elements if the manual option is not enabled
+		if (!options.manual) {
+			// attach open events
+			$.each(options.openEvents, function(idx, evt) {
+				if ($.inArray(evt, options.closeEvents) > -1) {
+					// event is in both openEvents and closeEvents, so toggle it
+					targetElements.on(evt + EVENT_NAMESPACE, function elementToggle(event) {
+						$.powerTip.toggle(this, event);
+					});
+				} else {
+					targetElements.on(evt + EVENT_NAMESPACE, function elementOpen(event) {
+						$.powerTip.show(this, event);
+					});
+				}
+			});
+
+			// attach close events
+			$.each(options.closeEvents, function(idx, evt) {
+				if ($.inArray(evt, options.openEvents) < 0) {
+					targetElements.on(evt + EVENT_NAMESPACE, function elementClose(event) {
+						// set immediate to true for any event without mouse info
+						$.powerTip.hide(this, !isMouseEvent(event));
+					});
+				}
+			});
+
+			// attach escape key close event
+			targetElements.on('keydown' + EVENT_NAMESPACE, function elementKeyDown(event) {
+				// always close tooltip when the escape key is pressed
+				if (event.keyCode === 27) {
+					$.powerTip.hide(this, true);
+				}
+			});
+		}
+
+		return targetElements;
+	};
+
+	/**
+	 * Default options for the powerTip plugin.
+	 */
+	$.fn.powerTip.defaults = {
+		fadeInTime: 200,
+		fadeOutTime: 100,
+		followMouse: false,
+		popupId: 'powerTip',
+		popupClass: null,
+		intentSensitivity: 7,
+		intentPollInterval: 100,
+		closeDelay: 100,
+		placement: 'n',
+		smartPlacement: false,
+		offset: 10,
+		mouseOnToPopup: false,
+		manual: false,
+		openEvents: [ 'mouseenter', 'focus' ],
+		closeEvents: [ 'mouseleave', 'blur' ]
+	};
+
+	/**
+	 * Default smart placement priority lists.
+	 * The first item in the array is the highest priority, the last is the lowest.
+	 * The last item is also the default, which will be used if all previous options
+	 * do not fit.
+	 */
+	$.fn.powerTip.smartPlacementLists = {
+		n: [ 'n', 'ne', 'nw', 's' ],
+		e: [ 'e', 'ne', 'se', 'w', 'nw', 'sw', 'n', 's', 'e' ],
+		s: [ 's', 'se', 'sw', 'n' ],
+		w: [ 'w', 'nw', 'sw', 'e', 'ne', 'se', 'n', 's', 'w' ],
+		nw: [ 'nw', 'w', 'sw', 'n', 's', 'se', 'nw' ],
+		ne: [ 'ne', 'e', 'se', 'n', 's', 'sw', 'ne' ],
+		sw: [ 'sw', 'w', 'nw', 's', 'n', 'ne', 'sw' ],
+		se: [ 'se', 'e', 'ne', 's', 'n', 'nw', 'se' ],
+		'nw-alt': [ 'nw-alt', 'n', 'ne-alt', 'sw-alt', 's', 'se-alt', 'w', 'e' ],
+		'ne-alt': [ 'ne-alt', 'n', 'nw-alt', 'se-alt', 's', 'sw-alt', 'e', 'w' ],
+		'sw-alt': [ 'sw-alt', 's', 'se-alt', 'nw-alt', 'n', 'ne-alt', 'w', 'e' ],
+		'se-alt': [ 'se-alt', 's', 'sw-alt', 'ne-alt', 'n', 'nw-alt', 'e', 'w' ]
+	};
+
+	/**
+	 * Public API
+	 */
+	$.powerTip = {
+		/**
+		 * Attempts to show the tooltip for the specified element.
+		 * @param {jQuery|Element} element The element to open the tooltip for.
+		 * @param {jQuery.Event=} event jQuery event for hover intent and mouse
+		 *     tracking (optional).
+		 * @return {jQuery|Element} The original jQuery object or DOM Element.
+		 */
+		show: function apiShowTip(element, event) {
+			// if we were given a mouse event then run the hover intent testing,
+			// otherwise, simply show the tooltip asap
+			if (isMouseEvent(event)) {
+				trackMouse(event);
+				session.previousX = event.pageX;
+				session.previousY = event.pageY;
+				$(element).data(DATA_DISPLAYCONTROLLER).show();
+			} else {
+				$(element).first().data(DATA_DISPLAYCONTROLLER).show(true, true);
+			}
+			return element;
+		},
+
+		/**
+		 * Repositions the tooltip on the element.
+		 * @param {jQuery|Element} element The element the tooltip is shown for.
+		 * @return {jQuery|Element} The original jQuery object or DOM Element.
+		 */
+		reposition: function apiResetPosition(element) {
+			$(element).first().data(DATA_DISPLAYCONTROLLER).resetPosition();
+			return element;
+		},
+
+		/**
+		 * Attempts to close any open tooltips.
+		 * @param {(jQuery|Element)=} element The element with the tooltip that
+		 *     should be closed (optional).
+		 * @param {boolean=} immediate Disable close delay (optional).
+		 * @return {jQuery|Element|undefined} The original jQuery object or DOM
+		 *     Element, if one was specified.
+		 */
+		hide: function apiCloseTip(element, immediate) {
+			var displayController;
+
+			// set immediate to true when no element is specified
+			immediate = element ? immediate : true;
+
+			// find the relevant display controller
+			if (element) {
+				displayController = $(element).first().data(DATA_DISPLAYCONTROLLER);
+			} else if (session.activeHover) {
+				displayController = session.activeHover.data(DATA_DISPLAYCONTROLLER);
+			}
+
+			// if found, hide the tip
+			if (displayController) {
+				displayController.hide(immediate);
+			}
+
+			return element;
+		},
+
+		/**
+		 * Toggles the tooltip for the specified element. This will open a closed
+		 * tooltip, or close an open tooltip.
+		 * @param {jQuery|Element} element The element with the tooltip that
+		 *     should be toggled.
+		 * @param {jQuery.Event=} event jQuery event for hover intent and mouse
+		 *     tracking (optional).
+		 * @return {jQuery|Element} The original jQuery object or DOM Element.
+		 */
+		toggle: function apiToggle(element, event) {
+			if (session.activeHover && session.activeHover.is(element)) {
+				// tooltip for element is active, so close it
+				$.powerTip.hide(element, !isMouseEvent(event));
+			} else {
+				// tooltip for element is not active, so open it
+				$.powerTip.show(element, event);
+			}
+			return element;
+		},
+
+	};
+
+	// API aliasing
+	$.powerTip.showTip = $.powerTip.show;
+	$.powerTip.closeTip = $.powerTip.hide;
+
+	/**
+	 * Creates a new CSSCoordinates object.
+	 * @private
+	 * @constructor
+	 */
+	function CSSCoordinates() {
+		var me = this;
+
+		// initialize object properties
+		me.top = 'auto';
+		me.left = 'auto';
+		me.right = 'auto';
+		me.bottom = 'auto';
+
+		/**
+		 * Set a property to a value.
+		 * @private
+		 * @param {string} property The name of the property.
+		 * @param {number} value The value of the property.
+		 */
+		me.set = function(property, value) {
+			if ($.isNumeric(value)) {
+				me[property] = Math.round(value);
+			}
+		};
+	}
+
+	/**
+	 * Creates a new tooltip display controller.
+	 * @private
+	 * @constructor
+	 * @param {jQuery} element The element that this controller will handle.
+	 * @param {Object} options Options object containing settings.
+	 * @param {TooltipController} tipController The TooltipController object for
+	 *     this instance.
+	 */
+	function DisplayController(element, options, tipController) {
+		var hoverTimer = null,
+			myCloseDelay = null;
+
+		/**
+		 * Begins the process of showing a tooltip.
+		 * @private
+		 * @param {boolean=} immediate Skip intent testing (optional).
+		 * @param {boolean=} forceOpen Ignore cursor position and force tooltip to
+		 *     open (optional).
+		 */
+		function openTooltip(immediate, forceOpen) {
+			cancelTimer();
+			if (!element.data(DATA_HASACTIVEHOVER)) {
+				if (!immediate) {
+					session.tipOpenImminent = true;
+					hoverTimer = setTimeout(
+						function intentDelay() {
+							hoverTimer = null;
+							checkForIntent();
+						},
+						options.intentPollInterval
+					);
+				} else {
+					if (forceOpen) {
+						element.data(DATA_FORCEDOPEN, true);
+					}
+					closeAnyDelayed();
+					tipController.showTip(element);
+				}
+			} else {
+				// cursor left and returned to this element, cancel close
+				cancelClose();
+			}
+		}
+
+		/**
+		 * Begins the process of closing a tooltip.
+		 * @private
+		 * @param {boolean=} disableDelay Disable close delay (optional).
+		 */
+		function closeTooltip(disableDelay) {
+			// if this instance already has a close delay in progress then halt it
+			if (myCloseDelay) {
+				myCloseDelay = session.closeDelayTimeout = clearTimeout(myCloseDelay);
+				session.delayInProgress = false;
+			}
+			cancelTimer();
+			session.tipOpenImminent = false;
+			if (element.data(DATA_HASACTIVEHOVER)) {
+				element.data(DATA_FORCEDOPEN, false);
+				if (!disableDelay) {
+					session.delayInProgress = true;
+					session.closeDelayTimeout = setTimeout(
+						function closeDelay() {
+							session.closeDelayTimeout = null;
+							tipController.hideTip(element);
+							session.delayInProgress = false;
+							myCloseDelay = null;
+						},
+						options.closeDelay
+					);
+					// save internal reference close delay id so we can check if the
+					// active close delay belongs to this instance
+					myCloseDelay = session.closeDelayTimeout;
+				} else {
+					tipController.hideTip(element);
+				}
+			}
+		}
+
+		/**
+		 * Checks mouse position to make sure that the user intended to hover on the
+		 * specified element before showing the tooltip.
+		 * @private
+		 */
+		function checkForIntent() {
+			// calculate mouse position difference
+			var xDifference = Math.abs(session.previousX - session.currentX),
+				yDifference = Math.abs(session.previousY - session.currentY),
+				totalDifference = xDifference + yDifference;
+
+			// check if difference has passed the sensitivity threshold
+			if (totalDifference < options.intentSensitivity) {
+				cancelClose();
+				closeAnyDelayed();
+				tipController.showTip(element);
+			} else {
+				// try again
+				session.previousX = session.currentX;
+				session.previousY = session.currentY;
+				openTooltip();
+			}
+		}
+
+		/**
+		 * Cancels active hover timer.
+		 * @private
+		 * @param {boolean=} stopClose Cancel any active close delay timer.
+		 */
+		function cancelTimer(stopClose) {
+			hoverTimer = clearTimeout(hoverTimer);
+			// cancel the current close delay if the active close delay is for this
+			// element or the stopClose argument is true
+			if (session.closeDelayTimeout && myCloseDelay === session.closeDelayTimeout || stopClose) {
+				cancelClose();
+			}
+		}
+
+		/**
+		 * Cancels any active close delay timer.
+		 * @private
+		 */
+		function cancelClose() {
+			session.closeDelayTimeout = clearTimeout(session.closeDelayTimeout);
+			session.delayInProgress = false;
+		}
+
+		/**
+		 * Asks any tooltips waiting on their close delay to close now.
+		 * @private
+		 */
+		function closeAnyDelayed() {
+			// if another element is waiting for its close delay then we should ask
+			// it to close immediately so we can proceed without unexpected timeout
+			// code being run during this tooltip's lifecycle
+			if (session.delayInProgress && session.activeHover && !session.activeHover.is(element)) {
+				session.activeHover.data(DATA_DISPLAYCONTROLLER).hide(true);
+			}
+		}
+
+		/**
+		 * Repositions the tooltip on this element.
+		 * @private
+		 */
+		function repositionTooltip() {
+			tipController.resetPosition(element);
+		}
+
+		// expose the methods
+		this.show = openTooltip;
+		this.hide = closeTooltip;
+		this.cancel = cancelTimer;
+		this.resetPosition = repositionTooltip;
+	}
+
+	/**
+	 * Creates a new Placement Calculator.
+	 * @private
+	 * @constructor
+	 */
+	function PlacementCalculator() {
+		/**
+		 * Compute the CSS position to display a tooltip at the specified placement
+		 * relative to the specified element.
+		 * @private
+		 * @param {jQuery} element The element that the tooltip should target.
+		 * @param {string} placement The placement for the tooltip.
+		 * @param {number} tipWidth Width of the tooltip element in pixels.
+		 * @param {number} tipHeight Height of the tooltip element in pixels.
+		 * @param {number} offset Distance to offset tooltips in pixels.
+		 * @return {CSSCoordinates} A CSSCoordinates object with the position.
+		 */
+		function computePlacementCoords(element, placement, tipWidth, tipHeight, offset) {
+			var placementBase = placement.split('-')[0], // ignore 'alt' for corners
+				coords = new CSSCoordinates(),
+				position;
+
+			if (isSvgElement(element)) {
+				position = getSvgPlacement(element, placementBase);
+			} else {
+				position = getHtmlPlacement(element, placementBase);
+			}
+
+			// calculate the appropriate x and y position in the document
+			switch (placement) {
+				case 'n':
+					coords.set('left', position.left - (tipWidth / 2));
+					coords.set('bottom', session.windowHeight - position.top + offset);
+					break;
+				case 'e':
+					coords.set('left', position.left + offset);
+					coords.set('top', position.top - (tipHeight / 2));
+					break;
+				case 's':
+					coords.set('left', position.left - (tipWidth / 2));
+					coords.set('top', position.top + offset);
+					break;
+				case 'w':
+					coords.set('top', position.top - (tipHeight / 2));
+					coords.set('right', session.windowWidth - position.left + offset);
+					break;
+				case 'nw':
+					coords.set('bottom', session.windowHeight - position.top + offset);
+					coords.set('right', session.windowWidth - position.left - 20);
+					break;
+				case 'nw-alt':
+					coords.set('left', position.left);
+					coords.set('bottom', session.windowHeight - position.top + offset);
+					break;
+				case 'ne':
+					coords.set('left', position.left - 20);
+					coords.set('bottom', session.windowHeight - position.top + offset);
+					break;
+				case 'ne-alt':
+					coords.set('bottom', session.windowHeight - position.top + offset);
+					coords.set('right', session.windowWidth - position.left);
+					break;
+				case 'sw':
+					coords.set('top', position.top + offset);
+					coords.set('right', session.windowWidth - position.left - 20);
+					break;
+				case 'sw-alt':
+					coords.set('left', position.left);
+					coords.set('top', position.top + offset);
+					break;
+				case 'se':
+					coords.set('left', position.left - 20);
+					coords.set('top', position.top + offset);
+					break;
+				case 'se-alt':
+					coords.set('top', position.top + offset);
+					coords.set('right', session.windowWidth - position.left);
+					break;
+			}
+
+			return coords;
+		}
+
+		/**
+		 * Finds the tooltip attachment point in the document for a HTML DOM element
+		 * for the specified placement.
+		 * @private
+		 * @param {jQuery} element The element that the tooltip should target.
+		 * @param {string} placement The placement for the tooltip.
+		 * @return {Object} An object with the top,left position values.
+		 */
+		function getHtmlPlacement(element, placement) {
+			var objectOffset = element.offset(),
+				objectWidth = element.outerWidth(),
+				objectHeight = element.outerHeight(),
+				left,
+				top;
+
+			// calculate the appropriate x and y position in the document
+			switch (placement) {
+				case 'n':
+					left = objectOffset.left + objectWidth / 2;
+					top = objectOffset.top;
+					break;
+				case 'e':
+					left = objectOffset.left + objectWidth;
+					top = objectOffset.top + objectHeight / 2;
+					break;
+				case 's':
+					left = objectOffset.left + objectWidth / 2;
+					top = objectOffset.top + objectHeight;
+					break;
+				case 'w':
+					left = objectOffset.left;
+					top = objectOffset.top + objectHeight / 2;
+					break;
+				case 'nw':
+					left = objectOffset.left;
+					top = objectOffset.top;
+					break;
+				case 'ne':
+					left = objectOffset.left + objectWidth;
+					top = objectOffset.top;
+					break;
+				case 'sw':
+					left = objectOffset.left;
+					top = objectOffset.top + objectHeight;
+					break;
+				case 'se':
+					left = objectOffset.left + objectWidth;
+					top = objectOffset.top + objectHeight;
+					break;
+			}
+
+			return {
+				top: top,
+				left: left
+			};
+		}
+
+		/**
+		 * Finds the tooltip attachment point in the document for a SVG element for
+		 * the specified placement.
+		 * @private
+		 * @param {jQuery} element The element that the tooltip should target.
+		 * @param {string} placement The placement for the tooltip.
+		 * @return {Object} An object with the top,left position values.
+		 */
+		function getSvgPlacement(element, placement) {
+			var svgElement = element.closest('svg')[0],
+				domElement = element[0],
+				point = svgElement.createSVGPoint(),
+				boundingBox = domElement.getBBox(),
+				matrix = domElement.getScreenCTM(),
+				halfWidth = boundingBox.width / 2,
+				halfHeight = boundingBox.height / 2,
+				placements = [],
+				placementKeys = [ 'nw', 'n', 'ne', 'e', 'se', 's', 'sw', 'w' ],
+				coords,
+				rotation,
+				steps,
+				x;
+
+			/**
+			 * Transform and append the current points to the placements list.
+			 * @private
+			 */
+			function pushPlacement() {
+				placements.push(point.matrixTransform(matrix));
+			}
+
+			// get bounding box corners and midpoints
+			point.x = boundingBox.x;
+			point.y = boundingBox.y;
+			pushPlacement();
+			point.x += halfWidth;
+			pushPlacement();
+			point.x += halfWidth;
+			pushPlacement();
+			point.y += halfHeight;
+			pushPlacement();
+			point.y += halfHeight;
+			pushPlacement();
+			point.x -= halfWidth;
+			pushPlacement();
+			point.x -= halfWidth;
+			pushPlacement();
+			point.y -= halfHeight;
+			pushPlacement();
+
+			// determine rotation
+			if (placements[0].y !== placements[1].y || placements[0].x !== placements[7].x) {
+				rotation = Math.atan2(matrix.b, matrix.a) * RAD2DEG;
+				steps = Math.ceil(((rotation % 360) - 22.5) / 45);
+				if (steps < 1) {
+					steps += 8;
+				}
+				while (steps--) {
+					placementKeys.push(placementKeys.shift());
+				}
+			}
+
+			// find placement
+			for (x = 0; x < placements.length; x++) {
+				if (placementKeys[x] === placement) {
+					coords = placements[x];
+					break;
+				}
+			}
+
+			return {
+				top: coords.y + session.scrollTop,
+				left: coords.x + session.scrollLeft
+			};
+		}
+
+		// expose methods
+		this.compute = computePlacementCoords;
+	}
+
+	/**
+	 * Creates a new tooltip controller.
+	 * @private
+	 * @constructor
+	 * @param {Object} options Options object containing settings.
+	 */
+	function TooltipController(options) {
+		var placementCalculator = new PlacementCalculator(),
+			tipElement = $('#' + options.popupId);
+
+		// build and append tooltip div if it does not already exist
+		if (tipElement.length === 0) {
+			tipElement = $('<div/>', { id: options.popupId });
+			// grab body element if it was not populated when the script loaded
+			// note: this hack exists solely for jsfiddle support
+			if ($body.length === 0) {
+				$body = $('body');
+			}
+			$body.append(tipElement);
+			// remember the tooltip elements that the plugin has created
+			session.tooltips = session.tooltips ? session.tooltips.add(tipElement) : tipElement;
+		}
+
+		// hook mousemove for cursor follow tooltips
+		if (options.followMouse) {
+			// only one positionTipOnCursor hook per tooltip element, please
+			if (!tipElement.data(DATA_HASMOUSEMOVE)) {
+				$document.on('mousemove' + EVENT_NAMESPACE, positionTipOnCursor);
+				$window.on('scroll' + EVENT_NAMESPACE, positionTipOnCursor);
+				tipElement.data(DATA_HASMOUSEMOVE, true);
+			}
+		}
+
+		/**
+		 * Gives the specified element the active-hover state and queues up the
+		 * showTip function.
+		 * @private
+		 * @param {jQuery} element The element that the tooltip should target.
+		 */
+		function beginShowTip(element) {
+			element.data(DATA_HASACTIVEHOVER, true);
+			// show tooltip, asap
+			tipElement.queue(function queueTipInit(next) {
+				showTip(element);
+				next();
+			});
+		}
+
+		/**
+		 * Shows the tooltip, as soon as possible.
+		 * @private
+		 * @param {jQuery} element The element that the tooltip should target.
+		 */
+		function showTip(element) {
+			var tipContent;
+
+			// it is possible, especially with keyboard navigation, to move on to
+			// another element with a tooltip during the queue to get to this point
+			// in the code. if that happens then we need to not proceed or we may
+			// have the fadeout callback for the last tooltip execute immediately
+			// after this code runs, causing bugs.
+			if (!element.data(DATA_HASACTIVEHOVER)) {
+				return;
+			}
+
+			// if the tooltip is open and we got asked to open another one then the
+			// old one is still in its fadeOut cycle, so wait and try again
+			if (session.isTipOpen) {
+				if (!session.isClosing) {
+					hideTip(session.activeHover);
+				}
+				tipElement.delay(100).queue(function queueTipAgain(next) {
+					showTip(element);
+					next();
+				});
+				return;
+			}
+
+			// trigger powerTipPreRender event
+			element.trigger('powerTipPreRender');
+
+			// set tooltip content
+			tipContent = getTooltipContent(element);
+			if (tipContent) {
+				tipElement.empty().append(tipContent);
+			} else {
+				// we have no content to display, give up
+				return;
+			}
+
+			// trigger powerTipRender event
+			element.trigger('powerTipRender');
+
+			session.activeHover = element;
+			session.isTipOpen = true;
+
+			tipElement.data(DATA_MOUSEONTOTIP, options.mouseOnToPopup);
+
+			// add custom class to tooltip element
+			tipElement.addClass(options.popupClass);
+
+			// set tooltip position
+			// revert to static placement when the "force open" flag was set because
+			// that flag means that we do not have accurate mouse position info
+			if (!options.followMouse || element.data(DATA_FORCEDOPEN)) {
+				positionTipOnElement(element);
+				session.isFixedTipOpen = true;
+			} else {
+				positionTipOnCursor();
+			}
+
+			// close tooltip when clicking anywhere on the page, with the exception
+			// of the tooltip's trigger element and any elements that are within a
+			// tooltip that has 'mouseOnToPopup' option enabled
+			// always enable this feature when the "force open" flag is set on a
+			// followMouse tooltip because we reverted to static placement above
+			if (!element.data(DATA_FORCEDOPEN) && !options.followMouse) {
+				$document.on('click' + EVENT_NAMESPACE, function documentClick(event) {
+					var target = event.target;
+					if (target !== element[0]) {
+						if (options.mouseOnToPopup) {
+							if (target !== tipElement[0] && !$.contains(tipElement[0], target)) {
+								$.powerTip.hide();
+							}
+						} else {
+							$.powerTip.hide();
+						}
+					}
+				});
+			}
+
+			// if we want to be able to mouse on to the tooltip then we need to
+			// attach hover events to the tooltip that will cancel a close request
+			// on mouseenter and start a new close request on mouseleave
+			// only hook these listeners if we're not in manual mode
+			if (options.mouseOnToPopup && !options.manual) {
+				tipElement.on('mouseenter' + EVENT_NAMESPACE, function tipMouseEnter() {
+					// check activeHover in case the mouse cursor entered the
+					// tooltip during the fadeOut and close cycle
+					if (session.activeHover) {
+						session.activeHover.data(DATA_DISPLAYCONTROLLER).cancel();
+					}
+				});
+				tipElement.on('mouseleave' + EVENT_NAMESPACE, function tipMouseLeave() {
+					// check activeHover in case the mouse cursor left the tooltip
+					// during the fadeOut and close cycle
+					if (session.activeHover) {
+						session.activeHover.data(DATA_DISPLAYCONTROLLER).hide();
+					}
+				});
+			}
+
+			// fadein
+			tipElement.fadeIn(options.fadeInTime, function fadeInCallback() {
+				// start desync polling
+				if (!session.desyncTimeout) {
+					session.desyncTimeout = setInterval(closeDesyncedTip, 500);
+				}
+
+				// trigger powerTipOpen event
+				element.trigger('powerTipOpen');
+			});
+		}
+
+		/**
+		 * Hides the tooltip.
+		 * @private
+		 * @param {jQuery} element The element that the tooltip should target.
+		 */
+		function hideTip(element) {
+			// reset session
+			session.isClosing = true;
+			session.isTipOpen = false;
+
+			// stop desync polling
+			session.desyncTimeout = clearInterval(session.desyncTimeout);
+
+			// reset element state
+			element.data(DATA_HASACTIVEHOVER, false);
+			element.data(DATA_FORCEDOPEN, false);
+
+			// remove document click handler
+			$document.off('click' + EVENT_NAMESPACE);
+
+			// unbind the mouseOnToPopup events if they were set
+			tipElement.off(EVENT_NAMESPACE);
+
+			// fade out
+			tipElement.fadeOut(options.fadeOutTime, function fadeOutCallback() {
+				var coords = new CSSCoordinates();
+
+				// reset session and tooltip element
+				session.activeHover = null;
+				session.isClosing = false;
+				session.isFixedTipOpen = false;
+				tipElement.removeClass();
+
+				// support mouse-follow and fixed position tips at the same time by
+				// moving the tooltip to the last cursor location after it is hidden
+				coords.set('top', session.currentY + options.offset);
+				coords.set('left', session.currentX + options.offset);
+				tipElement.css(coords);
+
+				// trigger powerTipClose event
+				element.trigger('powerTipClose');
+			});
+		}
+
+		/**
+		 * Moves the tooltip to the users mouse cursor.
+		 * @private
+		 */
+		function positionTipOnCursor() {
+			var tipWidth,
+				tipHeight,
+				coords,
+				collisions,
+				collisionCount;
+
+			// to support having fixed tooltips on the same page as cursor tooltips,
+			// where both instances are referencing the same tooltip element, we
+			// need to keep track of the mouse position constantly, but we should
+			// only set the tip location if a fixed tip is not currently open, a tip
+			// open is imminent or active, and the tooltip element in question does
+			// have a mouse-follow using it.
+			if (!session.isFixedTipOpen && (session.isTipOpen || (session.tipOpenImminent && tipElement.data(DATA_HASMOUSEMOVE)))) {
+				// grab measurements
+				tipWidth = tipElement.outerWidth();
+				tipHeight = tipElement.outerHeight();
+				coords = new CSSCoordinates();
+
+				// grab collisions
+				coords.set('top', session.currentY + options.offset);
+				coords.set('left', session.currentX + options.offset);
+				collisions = getViewportCollisions(
+					coords,
+					tipWidth,
+					tipHeight
+				);
+
+				// handle tooltip view port collisions
+				if (collisions !== Collision.none) {
+					collisionCount = countFlags(collisions);
+					if (collisionCount === 1) {
+						// if there is only one collision (bottom or right) then
+						// simply constrain the tooltip to the view port
+						if (collisions === Collision.right) {
+							coords.set('left', session.scrollLeft + session.windowWidth - tipWidth);
+						} else if (collisions === Collision.bottom) {
+							coords.set('top', session.scrollTop + session.windowHeight - tipHeight);
+						}
+					} else {
+						// if the tooltip has more than one collision then it is
+						// trapped in the corner and should be flipped to get it out
+						// of the users way
+						coords.set('left', session.currentX - tipWidth - options.offset);
+						coords.set('top', session.currentY - tipHeight - options.offset);
+					}
+				}
+
+				// position the tooltip
+				tipElement.css(coords);
+			}
+		}
+
+		/**
+		 * Sets the tooltip to the correct position relative to the specified target
+		 * element. Based on options settings.
+		 * @private
+		 * @param {jQuery} element The element that the tooltip should target.
+		 */
+		function positionTipOnElement(element) {
+			var priorityList,
+				finalPlacement;
+
+			// when the followMouse option is enabled and the "force open" flag is
+			// set we revert to static positioning. since the developer may not have
+			// considered this scenario we should use smart placement
+			if (options.smartPlacement || (options.followMouse && element.data(DATA_FORCEDOPEN))) {
+				priorityList = $.fn.powerTip.smartPlacementLists[options.placement];
+
+				// iterate over the priority list and use the first placement option
+				// that does not collide with the view port. if they all collide
+				// then the last placement in the list will be used.
+				$.each(priorityList, function(idx, pos) {
+					// place tooltip and find collisions
+					var collisions = getViewportCollisions(
+						placeTooltip(element, pos),
+						tipElement.outerWidth(),
+						tipElement.outerHeight()
+					);
+
+					// update the final placement variable
+					finalPlacement = pos;
+
+					// break if there were no collisions
+					return collisions !== Collision.none;
+				});
+			} else {
+				// if we're not going to use the smart placement feature then just
+				// compute the coordinates and do it
+				placeTooltip(element, options.placement);
+				finalPlacement = options.placement;
+			}
+
+			// add placement as class for CSS arrows
+			tipElement.removeClass('w nw sw e ne se n s w se-alt sw-alt ne-alt nw-alt');
+			tipElement.addClass(finalPlacement);
+		}
+
+		/**
+		 * Sets the tooltip position to the appropriate values to show the tip at
+		 * the specified placement. This function will iterate and test the tooltip
+		 * to support elastic tooltips.
+		 * @private
+		 * @param {jQuery} element The element that the tooltip should target.
+		 * @param {string} placement The placement for the tooltip.
+		 * @return {CSSCoordinates} A CSSCoordinates object with the top, left, and
+		 *     right position values.
+		 */
+		function placeTooltip(element, placement) {
+			var iterationCount = 0,
+				tipWidth,
+				tipHeight,
+				coords = new CSSCoordinates();
+
+			// set the tip to 0,0 to get the full expanded width
+			coords.set('top', 0);
+			coords.set('left', 0);
+			tipElement.css(coords);
+
+			// to support elastic tooltips we need to check for a change in the
+			// rendered dimensions after the tooltip has been positioned
+			do {
+				// grab the current tip dimensions
+				tipWidth = tipElement.outerWidth();
+				tipHeight = tipElement.outerHeight();
+
+				// get placement coordinates
+				coords = placementCalculator.compute(
+					element,
+					placement,
+					tipWidth,
+					tipHeight,
+					options.offset
+				);
+
+				// place the tooltip
+				tipElement.css(coords);
+			} while (
+				// sanity check: limit to 5 iterations, and...
+				++iterationCount <= 5 &&
+				// try again if the dimensions changed after placement
+				(tipWidth !== tipElement.outerWidth() || tipHeight !== tipElement.outerHeight())
+			);
+
+			return coords;
+		}
+
+		/**
+		 * Checks for a tooltip desync and closes the tooltip if one occurs.
+		 * @private
+		 */
+		function closeDesyncedTip() {
+			var isDesynced = false,
+				hasDesyncableCloseEvent = $.grep(
+					[ 'mouseleave', 'mouseout', 'blur', 'focusout' ],
+					function(eventType) {
+						return $.inArray(eventType, options.closeEvents) !== -1;
+					}
+				).length > 0;
+
+			// It is possible for the mouse cursor to leave an element without
+			// firing the mouseleave or blur event. This most commonly happens when
+			// the element is disabled under mouse cursor. If this happens it will
+			// result in a desynced tooltip because the tooltip was never asked to
+			// close. So we should periodically check for a desync situation and
+			// close the tip if such a situation arises.
+			if (session.isTipOpen && !session.isClosing && !session.delayInProgress && hasDesyncableCloseEvent) {
+				if (session.activeHover.data(DATA_HASACTIVEHOVER) === false || session.activeHover.is(':disabled')) {
+					// user moused onto another tip or active hover is disabled
+					isDesynced = true;
+				} else if (!isMouseOver(session.activeHover) && !session.activeHover.is(':focus') && !session.activeHover.data(DATA_FORCEDOPEN)) {
+					// hanging tip - have to test if mouse position is not over the
+					// active hover and not over a tooltip set to let the user
+					// interact with it.
+					// for keyboard navigation: this only counts if the element does
+					// not have focus.
+					// for tooltips opened via the api: we need to check if it has
+					// the forcedOpen flag.
+					if (tipElement.data(DATA_MOUSEONTOTIP)) {
+						if (!isMouseOver(tipElement)) {
+							isDesynced = true;
+						}
+					} else {
+						isDesynced = true;
+					}
+				}
+
+				if (isDesynced) {
+					// close the desynced tip
+					hideTip(session.activeHover);
+				}
+			}
+		}
+
+		// expose methods
+		this.showTip = beginShowTip;
+		this.hideTip = hideTip;
+		this.resetPosition = positionTipOnElement;
+	}
+
+	/**
+	 * Determine whether a jQuery object is an SVG element
+	 * @private
+	 * @param {jQuery} element The element to check
+	 * @return {boolean} Whether this is an SVG element
+	 */
+	function isSvgElement(element) {
+		return Boolean(window.SVGElement && element[0] instanceof SVGElement);
+	}
+
+	/**
+	 * Determines if the specified jQuery.Event object has mouse data.
+	 * @private
+	 * @param {jQuery.Event=} event The jQuery.Event object to test.
+	 * @return {boolean} True if there is mouse data, otherwise false.
+	 */
+	function isMouseEvent(event) {
+		return Boolean(event && $.inArray(event.type, MOUSE_EVENTS) > -1 &&
+			typeof event.pageX === 'number');
+	}
+
+	/**
+	 * Initializes the viewport dimension cache and hooks up the mouse position
+	 * tracking and viewport dimension tracking events.
+	 * Prevents attaching the events more than once.
+	 * @private
+	 */
+	function initTracking() {
+		if (!session.mouseTrackingActive) {
+			session.mouseTrackingActive = true;
+
+			// grab the current viewport dimensions on load
+			getViewportDimensions();
+			$(getViewportDimensions);
+
+			// hook mouse move tracking
+			$document.on('mousemove' + EVENT_NAMESPACE, trackMouse);
+
+			// hook viewport dimensions tracking
+			$window.on('resize' + EVENT_NAMESPACE, trackResize);
+			$window.on('scroll' + EVENT_NAMESPACE, trackScroll);
+		}
+	}
+
+	/**
+	 * Updates the viewport dimensions cache.
+	 * @private
+	 */
+	function getViewportDimensions() {
+		session.scrollLeft = $window.scrollLeft();
+		session.scrollTop = $window.scrollTop();
+		session.windowWidth = $window.width();
+		session.windowHeight = $window.height();
+	}
+
+	/**
+	 * Updates the window size info in the viewport dimensions cache.
+	 * @private
+	 */
+	function trackResize() {
+		session.windowWidth = $window.width();
+		session.windowHeight = $window.height();
+	}
+
+	/**
+	 * Updates the scroll offset info in the viewport dimensions cache.
+	 * @private
+	 */
+	function trackScroll() {
+		var x = $window.scrollLeft(),
+			y = $window.scrollTop();
+		if (x !== session.scrollLeft) {
+			session.currentX += x - session.scrollLeft;
+			session.scrollLeft = x;
+		}
+		if (y !== session.scrollTop) {
+			session.currentY += y - session.scrollTop;
+			session.scrollTop = y;
+		}
+	}
+
+	/**
+	 * Saves the current mouse coordinates to the session object.
+	 * @private
+	 * @param {jQuery.Event} event The mousemove event for the document.
+	 */
+	function trackMouse(event) {
+		session.currentX = event.pageX;
+		session.currentY = event.pageY;
+	}
+
+	/**
+	 * Tests if the mouse is currently over the specified element.
+	 * @private
+	 * @param {jQuery} element The element to check for hover.
+	 * @return {boolean} True if the mouse is over the element, otherwise false.
+	 */
+	function isMouseOver(element) {
+		// use getBoundingClientRect() because jQuery's width() and height()
+		// methods do not work with SVG elements
+		// compute width/height because those properties do not exist on the object
+		// returned by getBoundingClientRect() in older versions of IE
+		var elementPosition = element.offset(),
+			elementBox = element[0].getBoundingClientRect(),
+			elementWidth = elementBox.right - elementBox.left,
+			elementHeight = elementBox.bottom - elementBox.top;
+
+		return session.currentX >= elementPosition.left &&
+			session.currentX <= elementPosition.left + elementWidth &&
+			session.currentY >= elementPosition.top &&
+			session.currentY <= elementPosition.top + elementHeight;
+	}
+
+	/**
+	 * Fetches the tooltip content from the specified element's data attributes.
+	 * @private
+	 * @param {jQuery} element The element to get the tooltip content for.
+	 * @return {(string|jQuery|undefined)} The text/HTML string, jQuery object, or
+	 *     undefined if there was no tooltip content for the element.
+	 */
+	function getTooltipContent(element) {
+		var tipText = element.data(DATA_POWERTIP),
+			tipObject = element.data(DATA_POWERTIPJQ),
+			tipTarget = element.data(DATA_POWERTIPTARGET),
+			targetElement,
+			content;
+
+		if (tipText) {
+			if ($.isFunction(tipText)) {
+				tipText = tipText.call(element[0]);
+			}
+			content = tipText;
+		} else if (tipObject) {
+			if ($.isFunction(tipObject)) {
+				tipObject = tipObject.call(element[0]);
+			}
+			if (tipObject.length > 0) {
+				content = tipObject.clone(true, true);
+			}
+		} else if (tipTarget) {
+			targetElement = $('#' + tipTarget);
+			if (targetElement.length > 0) {
+				content = targetElement.html();
+			}
+		}
+
+		return content;
+	}
+
+	/**
+	 * Finds any viewport collisions that an element (the tooltip) would have if it
+	 * were absolutely positioned at the specified coordinates.
+	 * @private
+	 * @param {CSSCoordinates} coords Coordinates for the element.
+	 * @param {number} elementWidth Width of the element in pixels.
+	 * @param {number} elementHeight Height of the element in pixels.
+	 * @return {number} Value with the collision flags.
+	 */
+	function getViewportCollisions(coords, elementWidth, elementHeight) {
+		var viewportTop = session.scrollTop,
+			viewportLeft = session.scrollLeft,
+			viewportBottom = viewportTop + session.windowHeight,
+			viewportRight = viewportLeft + session.windowWidth,
+			collisions = Collision.none;
+
+		if (coords.top < viewportTop || Math.abs(coords.bottom - session.windowHeight) - elementHeight < viewportTop) {
+			collisions |= Collision.top;
+		}
+		if (coords.top + elementHeight > viewportBottom || Math.abs(coords.bottom - session.windowHeight) > viewportBottom) {
+			collisions |= Collision.bottom;
+		}
+		if (coords.left < viewportLeft || coords.right + elementWidth > viewportRight) {
+			collisions |= Collision.left;
+		}
+		if (coords.left + elementWidth > viewportRight || coords.right < viewportLeft) {
+			collisions |= Collision.right;
+		}
+
+		return collisions;
+	}
+
+	/**
+	 * Counts the number of bits set on a flags value.
+	 * @param {number} value The flags value.
+	 * @return {number} The number of bits that have been set.
+	 */
+	function countFlags(value) {
+		var count = 0;
+		while (value) {
+			value &= value - 1;
+			count++;
+		}
+		return count;
+	}
+
+	// return api for commonjs and amd environments
+	return $.powerTip;
+}));