(function ($, undefined) {
    var props = {
        "animation": {},
        "transition": {}
    },
        testElement = document.createElement("a"),
        vendorPrefixes = ["", "webkit-", "moz-", "o-"];

    $.each(["animation", "transition"], function (i, test) {

        // Get correct name for test
        var testName = (i === 0) ? test + "-" + "name" : test;

        $.each(vendorPrefixes, function (j, prefix) {
            if (testElement.style[$.camelCase(prefix + testName)] !== undefined) {
                props[test]["prefix"] = prefix;
                return false;
            }
        });

        // Set event and duration names for later use
        props[test]["duration"] =
            $.camelCase(props[test]["prefix"] + test + "-" + "duration");
        props[test]["event"] =
            $.camelCase(props[test]["prefix"] + test + "-" + "end");

        // All lower case if not a vendor prop
        if (props[test]["prefix"] === "") {
            props[test]["event"] = props[test]["event"].toLowerCase();
        }
    });

    // Remove the testElement
    $(testElement).remove();

    // Animation complete callback
    $.fn.animationComplete = function (callback, type, fallbackTime) {
        var timer, duration,
            that = this,
            eventBinding = function () {

                // Clear the timer so we don't call callback twice
                clearTimeout(timer);
                callback.apply(this, arguments);
            },
            animationType = (!type || type === "animation") ? "animation" : "transition";

        // If a fallback time was not passed set one
        if (fallbackTime === undefined) {

            // Make sure the was not bound to document before checking .css
            if ($(this).context !== document) {

                // Parse the durration since its in second multiple by 1000 for milliseconds
                // Multiply by 3 to make sure we give the animation plenty of time.
                duration = parseFloat(
                    $(this).css(props[animationType].duration)
                ) * 3000;
            }

            // If we could not read a duration use the default
            if (duration === 0 || duration === undefined || isNaN(duration)) {
                duration = $.fn.animationComplete.defaultDuration;
            }
        }

        // Sets up the fallback if event never comes
        timer = setTimeout(function () {
            $(that).off(props[animationType].event, eventBinding);
            callback.apply(that);
        }, duration);

        // Bind the event
        return $(this).one(props[animationType].event, eventBinding);
    };

    // Allow default callback to be configured on mobileInit
    $.fn.animationComplete.defaultDuration = 1000;
})(jQuery);

(function ($, undefined) {

	function fitSegmentInsideSegment(windowSize, segmentSize, offset, desired) {
		var returnValue = desired;

		if (windowSize < segmentSize) {
			// Center segment if it's bigger than the window
			returnValue = offset + (windowSize - segmentSize) / 2;
		} else {
			// Otherwise center it at the desired coordinate while keeping it completely inside the window
			returnValue = Math.min(Math.max(offset, desired - segmentSize / 2), offset + windowSize - segmentSize);
		}

		return returnValue;
	}

	function getWindowCoordinates(theWindow) {
		return {
			x: theWindow.scrollLeft(),
			y: theWindow.scrollTop(),
			cx: (theWindow[0].innerWidth || theWindow.width()),
			cy: (theWindow[0].innerHeight || theWindow.height())
		};
	}

    // non-UA-based IE version check by James Padolsey, modified by jdalton - from http://gist.github.com/527683
    // allows for inclusion of IE 6+, including Windows Mobile 7
	$.extend($.mobile, { browser: {} });
	$.mobile.browser.oldIE = (function () {
	    var v = 3,
            div = document.createElement("div"),
            a = div.all || [];

	    do {
	        div.innerHTML = "<!--[if gt IE " + (++v) + "]><br><![endif]-->";
	    } while (a[0]);

	    return v > 4 ? v : !v;
	})();

	$.widget("mobile.popup", {
		options: {
			wrapperClass: null,
			theme: null,
			overlayTheme: null,
			shadow: true,
			corners: true,
			transition: "none",
			positionTo: "origin",
			tolerance: null,
			closeLinkSelector: "a[data-rel='back']",
			closeLinkEvents: "click.popup",
			navigateEvents: "navigate.popup",
			closeEvents: "navigate.popup pagebeforechange.popup",
			dismissible: true,
			enhanced: false,

			// NOTE Windows Phone 7 has a scroll position caching issue that
			//      requires us to disable popup history management by default
			//      https://github.com/jquery/jquery-mobile/issues/4784
			//
			// NOTE this option is modified in _create!
			history: !$.mobile.browser.oldIE
		},

		// When the user depresses the mouse/finger on an element inside the popup while the popup is
		// open, we ignore resize events for a short while. This prevents #6961.
		_handleDocumentVmousedown: function (theEvent) {
			if (this._isOpen && $.contains(this._ui.container[0], theEvent.target)) {
				this._ignoreResizeEvents();
			}
		},

		_create: function () {
			var theElement = this.element,
				myId = theElement.attr("id"),
				currentOptions = this.options;

			// We need to adjust the history option to be false if there's no AJAX nav.
			// We can't do it in the option declarations because those are run before
			// it is determined whether there shall be AJAX nav.
			currentOptions.history = currentOptions.history && $.mobile.ajaxEnabled && $.mobile.hashListeningEnabled;

			this._on(this.document, {
				"mousedown": "_handleDocumentVmousedown"
			});

			// Define instance variables
			$.extend(this, {
				_scrollTop: 0,
				_page: theElement.closest(".ui-page"),
				_ui: null,
				_fallbackTransition: "",
				_currentTransition: false,
				_prerequisites: null,
				_isOpen: false,
				_tolerance: null,
				_resizeData: null,
				_ignoreResizeTo: 0,
				_orientationchangeInProgress: false
			});

			if (this._page.length === 0) {
				this._page = $("body");
			}

			if (currentOptions.enhanced) {
				this._ui = {
					container: theElement.parent(),
					screen: theElement.parent().prev(),
					placeholder: $(this.document[0].getElementById(myId + "-placeholder"))
				};
			} else {
				this._ui = this._enhance(theElement, myId);
				this._applyTransition(currentOptions.transition);
			}
			this
				._setTolerance(currentOptions.tolerance)
				._ui.focusElement = this._ui.container;

			// Event handlers
			this._on(this._ui.screen, { "click": "_eatEventAndClose" });
			this._on(this.window, {
				orientationchange: $.proxy(this, "_handleWindowOrientationchange"),
				resize: $.proxy(this, "_handleWindowResize")
			});
			this._on(this.document, { "focusin": "_handleDocumentFocusIn" });
		},

		_delay: function (handler, delay) {
		    function handlerProxy() {
		        return (typeof handler === "string" ? instance[handler] : handler)
                    .apply(instance, arguments);
		    }
		    var instance = this;
		    return setTimeout(handlerProxy, delay || 0);
		},

		_enhance: function (theElement, myId) {
			var currentOptions = this.options,
				wrapperClass = currentOptions.wrapperClass,
				ui = {
					screen: $("<div class='ui-screen-hidden ui-popup-screen " +
					this._themeClassFromOption("ui-overlay-", currentOptions.overlayTheme) + "'></div>"),
					placeholder: $("<div style='display: none;'><!-- placeholder --></div>"),
					container: $("<div class='ui-popup-container ui-popup-hidden ui-popup-truncate" +
						(wrapperClass ? (" " + wrapperClass) : "") + "'></div>")
				},
				fragment = this.document[0].createDocumentFragment();

			fragment.appendChild(ui.screen[0]);
			fragment.appendChild(ui.container[0]);

			if (myId) {
				ui.screen.attr("id", myId + "-screen");
				ui.container.attr("id", myId + "-popup");
				ui.placeholder
					.attr("id", myId + "-placeholder")
					.html("<!-- placeholder for " + myId + " -->");
			}

			// Apply the proto
			this._page[0].appendChild(fragment);
			// Leave a placeholder where the element used to be
			ui.placeholder.insertAfter(theElement);
			theElement
				.detach()
				.addClass("ui-popup " +
					this._themeClassFromOption("ui-body-", currentOptions.theme) + " " +
					(currentOptions.shadow ? "ui-overlay-shadow " : "") +
					(currentOptions.corners ? "ui-corner-all " : ""))
				.appendTo(ui.container);

			return ui;
		},

		_eatEventAndClose: function (theEvent) {
			theEvent.preventDefault();
			theEvent.stopImmediatePropagation();
			if (this.options.dismissible) {
				this.close();
			}
			return false;
		},

		// Make sure the screen covers the entire document - CSS is sometimes not
		// enough to accomplish this.
		_resizeScreen: function () {
			var screen = this._ui.screen,
				popupHeight = this._ui.container.outerHeight(true),
				screenHeight = screen.removeAttr("style").height(),

				// Subtracting 1 here is necessary for an obscure Andrdoid 4.0 bug where
				// the browser hangs if the screen covers the entire document :/
				documentHeight = this.document.height() - 1;

			if (screenHeight < documentHeight) {
				screen.height(documentHeight);
			} else if (popupHeight > screenHeight) {
				screen.height(popupHeight);
			}
		},

		_expectResizeEvent: function () {
			var windowCoordinates = getWindowCoordinates(this.window);

			if (this._resizeData) {
				if (windowCoordinates.x === this._resizeData.windowCoordinates.x &&
					windowCoordinates.y === this._resizeData.windowCoordinates.y &&
					windowCoordinates.cx === this._resizeData.windowCoordinates.cx &&
					windowCoordinates.cy === this._resizeData.windowCoordinates.cy) {
					// timeout not refreshed
					return false;
				} else {
					// clear existing timeout - it will be refreshed below
					clearTimeout(this._resizeData.timeoutId);
				}
			}

			this._resizeData = {
				timeoutId: this._delay("_resizeTimeout", 200),
				windowCoordinates: windowCoordinates
			};

			return true;
		},

		_resizeTimeout: function () {
			if (this._isOpen) {
				if (!this._expectResizeEvent()) {
					if (this._ui.container.hasClass("ui-popup-hidden")) {
						// effectively rapid-open the popup while leaving the screen intact
						this._ui.container.removeClass("ui-popup-hidden ui-popup-truncate");
						this.reposition({ positionTo: "window" });
						this._ignoreResizeEvents();
					}

					this._resizeScreen();
					this._resizeData = null;
					this._orientationchangeInProgress = false;
				}
			} else {
				this._resizeData = null;
				this._orientationchangeInProgress = false;
			}
		},

		_stopIgnoringResizeEvents: function () {
			this._ignoreResizeTo = 0;
		},

		_ignoreResizeEvents: function () {
			if (this._ignoreResizeTo) {
				clearTimeout(this._ignoreResizeTo);
			}
			this._ignoreResizeTo = this._delay("_stopIgnoringResizeEvents", 1000);
		},

		_handleWindowResize: function (/* theEvent */) {
			if (this._isOpen && this._ignoreResizeTo === 0) {
				if ((this._expectResizeEvent() || this._orientationchangeInProgress) &&
					!this._ui.container.hasClass("ui-popup-hidden")) {
					// effectively rapid-close the popup while leaving the screen intact
					this._ui.container
						.addClass("ui-popup-hidden ui-popup-truncate")
						.removeAttr("style");
				}
			}
		},

		_handleWindowOrientationchange: function (/* theEvent */) {
			if (!this._orientationchangeInProgress && this._isOpen && this._ignoreResizeTo === 0) {
				this._expectResizeEvent();
				this._orientationchangeInProgress = true;
			}
		},

		// When the popup is open, attempting to focus on an element that is not a
		// child of the popup will redirect focus to the popup
		_handleDocumentFocusIn: function (theEvent) {
			var target,
				targetElement = theEvent.target,
				ui = this._ui;

			if (!this._isOpen) {
				return;
			}

			if (targetElement !== ui.container[0]) {
				target = $(targetElement);
				if (!$.contains(ui.container[0], targetElement)) {
					$(this.document[0].activeElement).one("focus", $.proxy(function () {
						this._safelyBlur(targetElement);
					}, this));
					ui.focusElement.focus();
					theEvent.preventDefault();
					theEvent.stopImmediatePropagation();
					return false;
				} else if (ui.focusElement[0] === ui.container[0]) {
					ui.focusElement = target;
				}
			}

			this._ignoreResizeEvents();
		},

		_themeClassFromOption: function (prefix, value) {
			return (value ? (value === "none" ? "" : (prefix + value)) : (prefix + "inherit"));
		},

		_applyTransition: function (value) {
			if (value) {
				this._ui.container.removeClass(this._fallbackTransition);
				if (value !== "none") {
					this._fallbackTransition = $.mobile._maybeDegradeTransition(value);
					if (this._fallbackTransition === "none") {
						this._fallbackTransition = "";
					}
					this._ui.container.addClass(this._fallbackTransition);
				}
			}

			return this;
		},

		_setOptions: function (newOptions) {
			var currentOptions = this.options,
				theElement = this.element,
				screen = this._ui.screen;

			if (newOptions.wrapperClass !== undefined) {
				this._ui.container
					.removeClass(currentOptions.wrapperClass)
					.addClass(newOptions.wrapperClass);
			}

			if (newOptions.theme !== undefined) {
				theElement
					.removeClass(this._themeClassFromOption("ui-body-", currentOptions.theme))
					.addClass(this._themeClassFromOption("ui-body-", newOptions.theme));
			}

			if (newOptions.overlayTheme !== undefined) {
				screen
					.removeClass(this._themeClassFromOption("ui-overlay-", currentOptions.overlayTheme))
					.addClass(this._themeClassFromOption("ui-overlay-", newOptions.overlayTheme));

				if (this._isOpen) {
					screen.addClass("in");
				}
			}

			if (newOptions.shadow !== undefined) {
				theElement.toggleClass("ui-overlay-shadow", newOptions.shadow);
			}

			if (newOptions.corners !== undefined) {
				theElement.toggleClass("ui-corner-all", newOptions.corners);
			}

			if (newOptions.transition !== undefined) {
				if (!this._currentTransition) {
					this._applyTransition(newOptions.transition);
				}
			}

			if (newOptions.tolerance !== undefined) {
				this._setTolerance(newOptions.tolerance);
			}

			if (newOptions.disabled !== undefined) {
				if (newOptions.disabled) {
					this.close();
				}
			}

			return this._super(newOptions);
		},

		_setTolerance: function (value) {
			var tol = { t: 30, r: 15, b: 30, l: 15 },
				ar;

			if (value !== undefined) {
				ar = String(value).split(",");

				$.each(ar, function (idx, val) { ar[idx] = parseInt(val, 10); });

				switch (ar.length) {
					// All values are to be the same
					case 1:
						if (!isNaN(ar[0])) {
							tol.t = tol.r = tol.b = tol.l = ar[0];
						}
						break;

						// The first value denotes top/bottom tolerance, and the second value denotes left/right tolerance
					case 2:
						if (!isNaN(ar[0])) {
							tol.t = tol.b = ar[0];
						}
						if (!isNaN(ar[1])) {
							tol.l = tol.r = ar[1];
						}
						break;

						// The array contains values in the order top, right, bottom, left
					case 4:
						if (!isNaN(ar[0])) {
							tol.t = ar[0];
						}
						if (!isNaN(ar[1])) {
							tol.r = ar[1];
						}
						if (!isNaN(ar[2])) {
							tol.b = ar[2];
						}
						if (!isNaN(ar[3])) {
							tol.l = ar[3];
						}
						break;

					default:
						break;
				}
			}

			this._tolerance = tol;
			return this;
		},

		_clampPopupWidth: function (infoOnly) {
			var menuSize,
				windowCoordinates = getWindowCoordinates(this.window),
				// rectangle within which the popup must fit
				rectangle = {
					x: this._tolerance.l,
					y: windowCoordinates.y + this._tolerance.t,
					cx: windowCoordinates.cx - this._tolerance.l - this._tolerance.r,
					cy: windowCoordinates.cy - this._tolerance.t - this._tolerance.b
				};

			if (!infoOnly) {
				// Clamp the width of the menu before grabbing its size
				this._ui.container.css("max-width", rectangle.cx);
			}

			menuSize = {
				cx: this._ui.container.outerWidth(true),
				cy: this._ui.container.outerHeight(true)
			};

			return { rc: rectangle, menuSize: menuSize };
		},

		_calculateFinalLocation: function (desired, clampInfo) {
			var returnValue,
				rectangle = clampInfo.rc,
				menuSize = clampInfo.menuSize;

			// Center the menu over the desired coordinates, while not going outside
			// the window tolerances. This will center wrt. the window if the popup is
			// too large.
			returnValue = {
				left: fitSegmentInsideSegment(rectangle.cx, menuSize.cx, rectangle.x, desired.x),
				top: fitSegmentInsideSegment(rectangle.cy, menuSize.cy, rectangle.y, desired.y)
			};

			// Make sure the top of the menu is visible
			returnValue.top = Math.max(0, returnValue.top);

			// If the height of the menu is smaller than the height of the document
			// align the bottom with the bottom of the document

			returnValue.top -= Math.min(returnValue.top,
				Math.max(0, returnValue.top + menuSize.cy - this.document.height()));

			return returnValue;
		},

		// Try and center the overlay over the given coordinates
		_placementCoords: function (desired) {
			return this._calculateFinalLocation(desired, this._clampPopupWidth());
		},

		_createPrerequisites: function (screenPrerequisite, containerPrerequisite, whenDone) {
			var prerequisites,
				self = this;

			// It is important to maintain both the local variable prerequisites and
			// self._prerequisites. The local variable remains in the closure of the
			// functions which call the callbacks passed in. The comparison between the
			// local variable and self._prerequisites is necessary, because once a
			// function has been passed to .animationComplete() it will be called next
			// time an animation completes, even if that's not the animation whose end
			// the function was supposed to catch (for example, if an abort happens
			// during the opening animation, the .animationComplete handler is not
			// called for that animation anymore, but the handler remains attached, so
			// it is called the next time the popup is opened - making it stale.
			// Comparing the local variable prerequisites to the widget-level variable
			// self._prerequisites ensures that callbacks triggered by a stale
			// .animationComplete will be ignored.

			prerequisites = {
				screen: $.Deferred(),
				container: $.Deferred()
			};

			prerequisites.screen.then(function () {
				if (prerequisites === self._prerequisites) {
					screenPrerequisite();
				}
			});

			prerequisites.container.then(function () {
				if (prerequisites === self._prerequisites) {
					containerPrerequisite();
				}
			});

			Promise.all([prerequisites.screen, prerequisites.container]).then(function () {
				if (prerequisites === self._prerequisites) {
					self._prerequisites = null;
					whenDone();
				}
			});

			self._prerequisites = prerequisites;
		},

		_animate: function (args) {
			// NOTE before removing the default animation of the screen
			//      this had an animate callback that would resolve the deferred
			//      now the deferred is resolved immediately
			// TODO remove the dependency on the screen deferred
			this._ui.screen
				.removeClass(args.classToRemove)
				.addClass(args.screenClassToAdd);

			args.prerequisites.screen.resolve();

			if (args.transition && args.transition !== "none") {
				if (args.applyTransition) {
					this._applyTransition(args.transition);
				}
				if (this._fallbackTransition) {
					this._ui.container
						.addClass(args.containerClassToAdd)
						.removeClass(args.classToRemove)
						.animationComplete($.proxy(args.prerequisites.container, "resolve"));
					return;
				}
			}
			this._ui.container.removeClass(args.classToRemove);
			args.prerequisites.container.resolve();
		},

		// The desired coordinates passed in will be returned untouched if no reference element can be identified via
		// desiredPosition.positionTo. Nevertheless, this function ensures that its return value always contains valid
		// x and y coordinates by specifying the center middle of the window if the coordinates are absent.
		// options: { x: coordinate, y: coordinate, positionTo: string: "origin", "window", or jQuery selector
		_desiredCoords: function (openOptions) {
			var offset,
				dst = null,
				windowCoordinates = getWindowCoordinates(this.window),
				x = openOptions.x,
				y = openOptions.y,
				pTo = openOptions.positionTo;

			// Establish which element will serve as the reference
			if (pTo && pTo !== "origin") {
				if (pTo === "window") {
					x = windowCoordinates.cx / 2 + windowCoordinates.x;
					y = windowCoordinates.cy / 2 + windowCoordinates.y;
				} else {
					try {
						dst = $(pTo);
					} catch (err) {
						dst = null;
					}
					if (dst) {
						dst.filter(":visible");
						if (dst.length === 0) {
							dst = null;
						}
					}
				}
			}

			// If an element was found, center over it
			if (dst) {
				offset = dst.offset();
				x = offset.left + dst.outerWidth() / 2;
				y = offset.top + dst.outerHeight() / 2;
			}

			// Make sure x and y are valid numbers - center over the window
			if ($.type(x) !== "number" || isNaN(x)) {
				x = windowCoordinates.cx / 2 + windowCoordinates.x;
			}
			if ($.type(y) !== "number" || isNaN(y)) {
				y = windowCoordinates.cy / 2 + windowCoordinates.y;
			}

			return { x: x, y: y };
		},

		_reposition: function (openOptions) {
			// We only care about position-related parameters for repositioning
			openOptions = {
				x: openOptions.x,
				y: openOptions.y,
				positionTo: openOptions.positionTo
			};
			this._trigger("beforeposition", undefined, openOptions);
			this._ui.container.offset(this._placementCoords(this._desiredCoords(openOptions)));
		},

		reposition: function (openOptions) {
			if (this._isOpen) {
				this._reposition(openOptions);
			}
		},

		_safelyBlur: function (currentElement) {
			if (currentElement !== this.window[0] &&
				currentElement.nodeName.toLowerCase() !== "body") {
				$(currentElement).blur();
			}
		},

		_openPrerequisitesComplete: function () {
			var id = this.element.attr("id");

			this._ui.container.addClass("ui-popup-active");
			this._isOpen = true;
			this._resizeScreen();

			// Check to see if currElement is not a child of the container.  If it's not, blur
			if (!$.contains(this._ui.container[0], this.document[0].activeElement)) {
				this._safelyBlur(this.document[0].activeElement);
			}
			this._ignoreResizeEvents();
			if (id) {
				this.document.find("[aria-haspopup='true'][aria-owns='" + id + "']").attr("aria-expanded", true);
			}
			this._trigger("afteropen");
		},

		_open: function (options) {
			var openOptions = $.extend({}, this.options, options),
				// TODO move blacklist to private method
				androidBlacklist = (function () {
					var ua = navigator.userAgent,
						// Rendering engine is Webkit, and capture major version
						wkmatch = ua.match(/AppleWebKit\/([0-9\.]+)/),
						wkversion = !!wkmatch && wkmatch[1],
						androidmatch = ua.match(/Android (\d+(?:\.\d+))/),
						andversion = !!androidmatch && androidmatch[1],
						chromematch = ua.indexOf("Chrome") > -1;

					// Platform is Android, WebKit version is greater than 534.13 ( Android 3.2.1 ) and not Chrome.
					if (androidmatch !== null && andversion === "4.0" && wkversion && wkversion > 534.13 && !chromematch) {
						return true;
					}
					return false;
				}());

			// Count down to triggering "popupafteropen" - we have two prerequisites:
			// 1. The popup window animation completes (container())
			// 2. The screen opacity animation completes (screen())
			this._createPrerequisites(
				$.noop,
				$.noop,
				$.proxy(this, "_openPrerequisitesComplete"));

			this._currentTransition = openOptions.transition;
			this._applyTransition(openOptions.transition);

			this._ui.screen.removeClass("ui-screen-hidden");
			this._ui.container.removeClass("ui-popup-truncate");

			// Give applications a chance to modify the contents of the container before it appears
			this._reposition(openOptions);

			this._ui.container.removeClass("ui-popup-hidden");

			if (this.options.overlayTheme && androidBlacklist) {
				/* TODO: The native browser on Android 4.0.X ("Ice Cream Sandwich") suffers from an issue where the popup overlay appears to be z-indexed above the popup itself when certain other styles exist on the same page -- namely, any element set to `position: fixed` and certain types of input. These issues are reminiscent of previously uncovered bugs in older versions of Android's native browser: https://github.com/scottjehl/Device-Bugs/issues/3
				This fix closes the following bugs ( I use "closes" with reluctance, and stress that this issue should be revisited as soon as possible ):
				https://github.com/jquery/jquery-mobile/issues/4816
				https://github.com/jquery/jquery-mobile/issues/4844
				https://github.com/jquery/jquery-mobile/issues/4874
				*/

				// TODO sort out why this._page isn't working
				this.element.closest(".ui-page").addClass("ui-popup-open");
			}
			this._animate({
				additionalCondition: true,
				transition: openOptions.transition,
				classToRemove: "",
				screenClassToAdd: "in",
				containerClassToAdd: "in",
				applyTransition: false,
				prerequisites: this._prerequisites
			});
		},

		_closePrerequisiteScreen: function () {
			this._ui.screen
				.removeClass("out")
				.addClass("ui-screen-hidden");
		},

		_closePrerequisiteContainer: function () {
			this._ui.container
				.removeClass("reverse out")
				.addClass("ui-popup-hidden ui-popup-truncate")
				.removeAttr("style");
		},

		_closePrerequisitesDone: function () {
			var container = this._ui.container,
				id = this.element.attr("id");

			// remove the global mutex for popups
			$.mobile.popup.active = undefined;

			// Blur elements inside the container, including the container
			$(":focus", container[0]).add(container[0]).blur();

			if (id) {
				this.document.find("[aria-haspopup='true'][aria-owns='" + id + "']").attr("aria-expanded", false);
			}

			// alert users that the popup is closed
			this._trigger("afterclose");
		},

		_close: function (immediate) {
			this._ui.container.removeClass("ui-popup-active");
			this._page.removeClass("ui-popup-open");

			this._isOpen = false;

			// Count down to triggering "popupafterclose" - we have two prerequisites:
			// 1. The popup window reverse animation completes (container())
			// 2. The screen opacity animation completes (screen())
			this._createPrerequisites(
				$.proxy(this, "_closePrerequisiteScreen"),
				$.proxy(this, "_closePrerequisiteContainer"),
				$.proxy(this, "_closePrerequisitesDone"));

			this._animate({
				additionalCondition: this._ui.screen.hasClass("in"),
				transition: (immediate ? "none" : (this._currentTransition)),
				classToRemove: "in",
				screenClassToAdd: "out",
				containerClassToAdd: "reverse out",
				applyTransition: true,
				prerequisites: this._prerequisites
			});
		},

		_unenhance: function () {
			if (this.options.enhanced) {
				return;
			}

			// Put the element back to where the placeholder was and remove the "ui-popup" class
			this._setOptions({ theme: $.mobile.popup.prototype.options.theme });
			this.element
				// Cannot directly insertAfter() - we need to detach() first, because
				// insertAfter() will do nothing if the payload div was not attached
				// to the DOM at the time the widget was created, and so the payload
				// will remain inside the container even after we call insertAfter().
				// If that happens and we remove the container a few lines below, we
				// will cause an infinite recursion - #5244
				.detach()
				.insertAfter(this._ui.placeholder)
				.removeClass("ui-popup ui-overlay-shadow ui-corner-all ui-body-inherit");
			this._ui.screen.remove();
			this._ui.container.remove();
			this._ui.placeholder.remove();
		},

		_destroy: function () {
			if ($.mobile.popup.active === this) {
				this.element.one("popupafterclose", $.proxy(this, "_unenhance"));
				this.close();
			} else {
				this._unenhance();
			}

			return this;
		},

		_closePopup: function (theEvent, data) {
			var parsedDst, toUrl,
				currentOptions = this.options,
				immediate = false;

			if ((theEvent && theEvent.isDefaultPrevented()) || $.mobile.popup.active !== this) {
				return;
			}

			// restore location on screen
			window.scrollTo(0, this._scrollTop);

			if (theEvent && theEvent.type === "pagebeforechange" && data) {
				// Determine whether we need to rapid-close the popup, or whether we can
				// take the time to run the closing transition
				if (typeof data.toPage === "string") {
					parsedDst = data.toPage;
				} else {
					parsedDst = data.toPage.data("url");
				}
				parsedDst = $.mobile.path.parseUrl(parsedDst);
				toUrl = parsedDst.pathname + parsedDst.search + parsedDst.hash;

				if (this._myUrl !== $.mobile.path.makeUrlAbsolute(toUrl)) {
					// Going to a different page - close immediately
					immediate = true;
				} else {
					theEvent.preventDefault();
				}
			}

			// remove nav bindings
			this.window.off(currentOptions.closeEvents);
			// unbind click handlers added when history is disabled
			this.element.undelegate(currentOptions.closeLinkSelector, currentOptions.closeLinkEvents);

			this._close(immediate);
		},

		// any navigation event after a popup is opened should close the popup
		// NOTE the pagebeforechange is bound to catch navigation events that don't
		//      alter the url (eg, dialogs from popups)
		_bindContainerClose: function () {
			this.window
				.on(this.options.closeEvents, $.proxy(this, "_closePopup"));
		},

		widget: function () {
			return this._ui.container;
		},

		// TODO no clear deliniation of what should be here and
		// what should be in _open. Seems to be "visual" vs "history" for now
		open: function (options) {
			var url, hashkey, activePage, currentIsDialog, hasHash, urlHistory,
				self = this,
				currentOptions = this.options;

			// make sure open is idempotent
			if ($.mobile.popup.active || currentOptions.disabled) {
				return this;
			}

			// set the global popup mutex
			$.mobile.popup.active = this;
			this._scrollTop = this.window.scrollTop();

			// if history alteration is disabled close on navigate events
			// and leave the url as is
			if (!(currentOptions.history)) {
				self._open(options);
				self._bindContainerClose();

				// When histoy is disabled we have to grab the data-rel
				// back link clicks so we can close the popup instead of
				// relying on history to do it for us
				self.element
					.delegate(currentOptions.closeLinkSelector, currentOptions.closeLinkEvents, function (theEvent) {
						self.close();
						theEvent.preventDefault();
					});

				return this;
			}

			// cache some values for min/readability
			urlHistory = $.mobile.navigate.history;
			hashkey = $.mobile.dialogHashKey;
			activePage = $.mobile.activePage;
			currentIsDialog = (activePage ? activePage.hasClass("ui-dialog") : false);
			this._myUrl = url = urlHistory.getActive().url;
			hasHash = (url.indexOf(hashkey) > -1) && !currentIsDialog && (urlHistory.activeIndex > 0);

			if (hasHash) {
				self._open(options);
				self._bindContainerClose();
				return this;
			}

			// if the current url has no dialog hash key proceed as normal
			// otherwise, if the page is a dialog simply tack on the hash key
			if (url.indexOf(hashkey) === -1 && !currentIsDialog) {
				url = url + (url.indexOf("#") > -1 ? hashkey : "#" + hashkey);
			} else {
				url = $.mobile.path.parseLocation().hash + hashkey;
			}

			// swallow the the initial navigation event, and bind for the next
			this.window.one("beforenavigate", function (theEvent) {
				theEvent.preventDefault();
				self._open(options);
				self._bindContainerClose();
			});

			this.urlAltered = true;
			$.mobile.navigate(url, { role: "dialog" });

			return this;
		},

		close: function () {
			// make sure close is idempotent
			if ($.mobile.popup.active !== this) {
				return this;
			}

			this._scrollTop = this.window.scrollTop();

			if (this.options.history && this.urlAltered) {
			    $.mobile.pageContainer.pagecontainer("back");
				this.urlAltered = false;
			} else {
				// simulate the nav bindings having fired
				this._closePopup();
			}

			return this;
		}
	});

	// TODO this can be moved inside the widget
	$.mobile.popup.handleLink = function ($link) {
		var offset,
			path = $.mobile.path,

			// NOTE make sure to get only the hash from the href because ie7 (wp7)
			//      returns the absolute href in this case ruining the element selection
			popup = $(path.hashToSelector(path.parseUrl($link.attr("href")).hash)).first();

		if (popup.length > 0 && popup.data("mobile-popup")) {
			offset = $link.offset();
			popup.popup("open", {
				x: offset.left + $link.outerWidth() / 2,
				y: offset.top + $link.outerHeight() / 2,
				transition: $link.data("transition"),
				positionTo: $link.data("position-to")
			});
		}

		//remove after delay
		setTimeout(function () {
			$link.removeClass($.mobile.activeBtnClass);
		}, 300);
	};

	// TODO move inside _create
	$(document).on("pagebeforechange", function (theEvent, data) {
		if (data.options.role === "popup") {
			$.mobile.popup.handleLink(data.options.link);
			theEvent.preventDefault();
		}
	});

})(jQuery);


(function ($, undefined) {

	var ieHack = ($.mobile.browser.oldIE && $.mobile.browser.oldIE <= 8),
		uiTemplate = $(
			"<div class='ui-popup-arrow-guide'></div>" +
			"<div class='ui-popup-arrow-container" + (ieHack ? " ie" : "") + "'>" +
				"<div class='ui-popup-arrow'></div>" +
			"</div>"
		);

	function getArrow() {
		var clone = uiTemplate.clone(),
			gd = clone.eq(0),
			ct = clone.eq(1),
			ar = ct.children();

		return { arEls: ct.add(gd), gd: gd, ct: ct, ar: ar };
	}

	$.widget("mobile.popup", $.mobile.popup, {
		options: {

			arrow: ""
		},

		_create: function () {
			var ar,
				ret = this._super();

			if (this.options.arrow) {
				this._ui.arrow = ar = this._addArrow();
			}

			return ret;
		},

		_addArrow: function () {
			var theme,
				opts = this.options,
				ar = getArrow();

			theme = this._themeClassFromOption("ui-body-", opts.theme);
			ar.ar.addClass(theme + (opts.shadow ? " ui-overlay-shadow" : ""));
			ar.arEls.hide().appendTo(this.element);

			return ar;
		},

		_unenhance: function () {
			var ar = this._ui.arrow;

			if (ar) {
				ar.arEls.remove();
			}

			return this._super();
		},

		// Pretend to show an arrow described by @p and @dir and calculate the
		// distance from the desired point. If a best-distance is passed in, return
		// the minimum of the one passed in and the one calculated.
		_tryAnArrow: function (p, dir, desired, s, best) {
			var result, r, diff, desiredForArrow = {}, tip = {};

			// If the arrow has no wiggle room along the edge of the popup, it cannot
			// be displayed along the requested edge without it sticking out.
			if (s.arFull[p.dimKey] > s.guideDims[p.dimKey]) {
				return best;
			}

			desiredForArrow[p.fst] = desired[p.fst] +
				(s.arHalf[p.oDimKey] + s.menuHalf[p.oDimKey]) * p.offsetFactor -
				s.contentBox[p.fst] + (s.clampInfo.menuSize[p.oDimKey] - s.contentBox[p.oDimKey]) * p.arrowOffsetFactor;
			desiredForArrow[p.snd] = desired[p.snd];

			result = s.result || this._calculateFinalLocation(desiredForArrow, s.clampInfo);
			r = { x: result.left, y: result.top };

			tip[p.fst] = r[p.fst] + s.contentBox[p.fst] + p.tipOffset;
			tip[p.snd] = Math.max(result[p.prop] + s.guideOffset[p.prop] + s.arHalf[p.dimKey],
				Math.min(result[p.prop] + s.guideOffset[p.prop] + s.guideDims[p.dimKey] - s.arHalf[p.dimKey],
					desired[p.snd]));

			diff = Math.abs(desired.x - tip.x) + Math.abs(desired.y - tip.y);
			if (!best || diff < best.diff) {
				// Convert tip offset to coordinates inside the popup
				tip[p.snd] -= s.arHalf[p.dimKey] + result[p.prop] + s.contentBox[p.snd];
				best = { dir: dir, diff: diff, result: result, posProp: p.prop, posVal: tip[p.snd] };
			}

			return best;
		},

		_getPlacementState: function (clamp) {
			var offset, gdOffset,
				ar = this._ui.arrow,
				state = {
					clampInfo: this._clampPopupWidth(!clamp),
					arFull: { cx: ar.ct.width(), cy: ar.ct.height() },
					guideDims: { cx: ar.gd.width(), cy: ar.gd.height() },
					guideOffset: ar.gd.offset()
				};

			offset = this.element.offset();

			ar.gd.css({ left: 0, top: 0, right: 0, bottom: 0 });
			gdOffset = ar.gd.offset();
			state.contentBox = {
				x: gdOffset.left - offset.left,
				y: gdOffset.top - offset.top,
				cx: ar.gd.width(),
				cy: ar.gd.height()
			};
			ar.gd.removeAttr("style");

			// The arrow box moves between guideOffset and guideOffset + guideDims - arFull
			state.guideOffset = { left: state.guideOffset.left - offset.left, top: state.guideOffset.top - offset.top };
			state.arHalf = { cx: state.arFull.cx / 2, cy: state.arFull.cy / 2 };
			state.menuHalf = { cx: state.clampInfo.menuSize.cx / 2, cy: state.clampInfo.menuSize.cy / 2 };

			return state;
		},

		_placementCoords: function (desired) {
			var state, best, params, elOffset, bgRef,
				optionValue = this.options.arrow,
				ar = this._ui.arrow;

			if (!ar) {
				return this._super(desired);
			}

			ar.arEls.show();

			bgRef = {};
			state = this._getPlacementState(true);
			params = {
				"l": { fst: "x", snd: "y", prop: "top", dimKey: "cy", oDimKey: "cx", offsetFactor: 1, tipOffset: -state.arHalf.cx, arrowOffsetFactor: 0 },
				"r": { fst: "x", snd: "y", prop: "top", dimKey: "cy", oDimKey: "cx", offsetFactor: -1, tipOffset: state.arHalf.cx + state.contentBox.cx, arrowOffsetFactor: 1 },
				"b": { fst: "y", snd: "x", prop: "left", dimKey: "cx", oDimKey: "cy", offsetFactor: -1, tipOffset: state.arHalf.cy + state.contentBox.cy, arrowOffsetFactor: 1 },
				"t": { fst: "y", snd: "x", prop: "left", dimKey: "cx", oDimKey: "cy", offsetFactor: 1, tipOffset: -state.arHalf.cy, arrowOffsetFactor: 0 }
			};

			// Try each side specified in the options to see on which one the arrow
			// should be placed such that the distance between the tip of the arrow and
			// the desired coordinates is the shortest.
			$.each((optionValue === true ? "l,t,r,b" : optionValue).split(","),
				$.proxy(function (key, value) {
					best = this._tryAnArrow(params[value], value, desired, state, best);
				}, this));

			// Could not place the arrow along any of the edges - behave as if showing
			// the arrow was turned off.
			if (!best) {
				ar.arEls.hide();
				return this._super(desired);
			}

			// Move the arrow into place
			ar.ct
				.removeClass("ui-popup-arrow-l ui-popup-arrow-t ui-popup-arrow-r ui-popup-arrow-b")
				.addClass("ui-popup-arrow-" + best.dir)
				.removeAttr("style").css(best.posProp, best.posVal)
				.show();

			// Do not move/size the background div on IE, because we use the arrow div for background as well.
			if (!ieHack) {
				elOffset = this.element.offset();
				bgRef[params[best.dir].fst] = ar.ct.offset();
				bgRef[params[best.dir].snd] = {
					left: elOffset.left + state.contentBox.x,
					top: elOffset.top + state.contentBox.y
				};
			}

			return best.result;
		},

		_setOptions: function (opts) {
			var newTheme,
				oldTheme = this.options.theme,
				ar = this._ui.arrow,
				ret = this._super(opts);

			if (opts.arrow !== undefined) {
				if (!ar && opts.arrow) {
					this._ui.arrow = this._addArrow();

					// Important to return here so we don't set the same options all over
					// again below.
					return;
				} else if (ar && !opts.arrow) {
					ar.arEls.remove();
					this._ui.arrow = null;
				}
			}

			// Reassign with potentially new arrow
			ar = this._ui.arrow;

			if (ar) {
				if (opts.theme !== undefined) {
					oldTheme = this._themeClassFromOption("ui-body-", oldTheme);
					newTheme = this._themeClassFromOption("ui-body-", opts.theme);
					ar.ar.removeClass(oldTheme).addClass(newTheme);
				}

				if (opts.shadow !== undefined) {
					ar.ar.toggleClass("ui-overlay-shadow", opts.shadow);
				}
			}

			return ret;
		},

		_destroy: function () {
			var ar = this._ui.arrow;

			if (ar) {
				ar.arEls.remove();
			}

			return this._super();
		}
	});

})(jQuery);