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*\t Angular Smooth Scroll (ngSmoothScroll)\r\n *\t Animates scrolling to elements, by David Oliveros.\r\n *\r\n *   Callback hooks contributed by Ben Armston https://github.com/benarmston\r\n *\t Easing support contributed by Willem Liu. https://github.com/willemliu\r\n *\t Easing functions forked from Gaëtan Renaudeau. https://gist.github.com/gre/1650294\r\n *\t Infinite loop bugs in iOS and Chrome (when zoomed) by Alex Guzman. https://github.com/alexguzman\r\n *\t Support for scrolling in custom containers by Joseph Matthias Goh. https://github.com/zephinzer\r\n *\t Influenced by Chris Ferdinandi\r\n *\t https://github.com/cferdinandi\r\n *\r\n *\t Version: 2.0.0\r\n * \t License: MIT\r\n */\r\n\r\n(function () {\r\n    'use strict';\r\n\r\n    var module = angular.module('smoothScroll', []);\r\n\r\n\r\n    /**\r\n\t * Smooth scrolls the window/div to the provided element.\r\n\t *\r\n\t * 20150713 EDIT - zephinzer\r\n\t * \tAdded new option - containerId to account for scrolling within a DIV\r\n\t */\r\n    var smoothScroll = function (element, options) {\r\n        options = options || {};\r\n\r\n        // Options\r\n        var duration = options.duration || 800,\r\n\t\t\toffset = options.offset || 0,\r\n\t\t\teasing = options.easing || 'easeInOutQuart',\r\n\t\t\tcallbackBefore = options.callbackBefore || function () { },\r\n\t\t\tcallbackAfter = options.callbackAfter || function () { },\r\n\t\t\tcontainer = document.getElementById(options.containerId) || null,\r\n\t\t\tcontainerPresent = (container != undefined && container != null);\r\n\r\n        /**\r\n\t\t * Retrieve current location\r\n\t\t */\r\n        var getScrollLocation = function () {\r\n            if (containerPresent) {\r\n                return container.scrollTop;\r\n            } else {\r\n                if (window.pageYOffset) {\r\n                    return window.pageYOffset;\r\n                } else {\r\n                    return document.documentElement.scrollTop;\r\n                }\r\n            }\r\n        };\r\n\r\n        /**\r\n\t\t * Calculate easing pattern.\r\n\t\t *\r\n\t\t * 20150713 edit - zephinzer\r\n\t\t * - changed if-else to switch\r\n\t\t * @see http://archive.oreilly.com/pub/a/server-administration/excerpts/even-faster-websites/writing-efficient-javascript.html\r\n\t\t */\r\n        var getEasingPattern = function (type, time) {\r\n            switch (type) {\r\n                case 'easeInQuad': return time * time; // accelerating from zero velocity\r\n                case 'easeOutQuad': return time * (2 - time); // decelerating to zero velocity\r\n                case 'easeInOutQuad': return time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration\r\n                case 'easeInCubic': return time * time * time; // accelerating from zero velocity\r\n                case 'easeOutCubic': return (--time) * time * time + 1; // decelerating to zero velocity\r\n                case 'easeInOutCubic': return time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration\r\n                case 'easeInQuart': return time * time * time * time; // accelerating from zero velocity\r\n                case 'easeOutQuart': return 1 - (--time) * time * time * time; // decelerating to zero velocity\r\n                case 'easeInOutQuart': return time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration\r\n                case 'easeInQuint': return time * time * time * time * time; // accelerating from zero velocity\r\n                case 'easeOutQuint': return 1 + (--time) * time * time * time * time; // decelerating to zero velocity\r\n                case 'easeInOutQuint': return time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration\r\n                default: return time;\r\n            }\r\n        };\r\n\r\n        /**\r\n\t\t * Calculate how far to scroll\r\n\t\t */\r\n        var getEndLocation = function (element) {\r\n            var location = 0;\r\n            if (element.offsetParent) {\r\n                do {\r\n                    location += element.offsetTop;\r\n                    element = element.offsetParent;\r\n                } while (element);\r\n            }\r\n            location = Math.max(location - offset, 0);\r\n            return location;\r\n        };\r\n\r\n        // Initialize the whole thing\r\n        setTimeout(function () {\r\n            var currentLocation = null,\r\n\t\t\t\tstartLocation = getScrollLocation(),\r\n\t\t\t\tendLocation = getEndLocation(element),\r\n\t\t\t\ttimeLapsed = 0,\r\n\t\t\t\tdistance = endLocation - startLocation,\r\n\t\t\t\tpercentage,\r\n\t\t\t\tposition,\r\n\t\t\t\tscrollHeight,\r\n\t\t\t\tinternalHeight;\r\n\r\n            /**\r\n\t\t\t * Stop the scrolling animation when the anchor is reached (or at the top/bottom of the page)\r\n\t\t\t */\r\n            var stopAnimation = function () {\r\n                currentLocation = getScrollLocation();\r\n                if (containerPresent) {\r\n                    scrollHeight = container.scrollHeight;\r\n                    internalHeight = container.clientHeight + currentLocation;\r\n                } else {\r\n                    scrollHeight = document.body.scrollheight;\r\n                    internalHeight = window.innerHeight + currentLocation;\r\n                }\r\n\r\n                if (\r\n\t\t\t\t\t( // condition 1\r\n\t\t\t\t\t\tposition == endLocation\r\n\t\t\t\t\t) ||\r\n\t\t\t\t\t( // condition 2\r\n\t\t\t\t\t\tcurrentLocation == endLocation\r\n\t\t\t\t\t) ||\r\n\t\t\t\t\t( // condition 3\r\n\t\t\t\t\t\tinternalHeight >= scrollHeight\r\n\t\t\t\t\t)\r\n\t\t\t\t) { // stop\r\n                    clearInterval(runAnimation);\r\n                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return smoothScroll;\r\n    });\r\n\r\n\r\n    /**\r\n\t * Scrolls the window to this element, optionally validating an expression\r\n\t *\r\n\t * 20150713 EDIT - zephinzer\r\n\t * \tAdded containerId to attributes for smooth scrolling within a DIV\r\n\t */\r\n    module.directive('smoothScroll', ['smoothScroll', function (smoothScroll) {\r\n        return {\r\n            restrict: 'A',\r\n            scope: {\r\n                callbackBefore: '&',\r\n                callbackAfter: '&',\r\n            },\r\n            link: function ($scope, $elem, $attrs) {\r\n                if (typeof $attrs.scrollIf === 'undefined' || $attrs.scrollIf === 'true') {\r\n                    setTimeout(function () {\r\n\r\n                        var callbackBefore = function (element) {\r\n                            if ($attrs.callbackBefore) {\r\n                                var exprHandler = $scope.callbackBefore({ element: element });\r\n                                if (typeof exprHandler === 'function') {\r\n                                    exprHandler(element);\r\n                                }\r\n                            }\r\n                        };\r\n\r\n                        var callbackAfter = function (element) {\r\n                            if ($attrs.callbackAfter) {\r\n                                var exprHandler = $scope.callbackAfter({ element: element });\r\n                                if (typeof exprHandler === 'function') {\r\n                                    exprHandler(element);\r\n                                }\r\n                            }\r\n                        };\r\n\r\n                        smoothScroll($elem[0], {\r\n                            duration: $attrs.duration,\r\n                            offset: $attrs.offset,\r\n                            easing: $attrs.easing,\r\n                            callbackBefore: callbackBefore,\r\n                            callbackAfter: callbackAfter,\r\n                            containerId: $attrs.containerId\r\n                        });\r\n                    }, 0);\r\n                }\r\n            }\r\n        };\r\n    }]);\r\n\r\n\r\n    /**\r\n\t * Scrolls to a specified element ID when this element is clicked\r\n\t *\r\n\t * 20150713 EDIT - zephinzer\r\n\t * \tAdded containerId to attributes for smooth scrolling within a DIV\r\n\t */\r\n    module.directive('scrollTo', ['smoothScroll', function (smoothScroll) {\r\n        return {\r\n            restrict: 'A',\r\n            scope: {\r\n                callbackBefore: '&',\r\n                callbackAfter: '&',\r\n            },\r\n            link: function ($scope, $elem, $attrs) {\r\n                var targetElement;\r\n\r\n                $elem.on('click', function (e) {\r\n                    e.preventDefault();\r\n\r\n                    targetElement = document.getElementById($attrs.scrollTo);\r\n                    if (!targetElement) return;\r\n\r\n                    var callbackBefore = function (element) {\r\n                        if ($attrs.callbackBefore) {\r\n                            var exprHandler = $scope.callbackBefore({ element: element });\r\n                            if (typeof exprHandler === 'function') {\r\n                                exprHandler(element);\r\n                            }\r\n                        }\r\n                    };\r\n\r\n                    var callbackAfter = function (element) {\r\n                        if ($attrs.callbackAfter) {\r\n                            var exprHandler = $scope.callbackAfter({ element: element });\r\n                            if (typeof exprHandler === 'function') {\r\n                                exprHandler(element);\r\n                            }\r\n                        }\r\n                    };\r\n\r\n                    smoothScroll(targetElement, {\r\n                        duration: $attrs.duration,\r\n                        offset: $attrs.offset,\r\n                        easing: $attrs.easing,\r\n                        callbackBefore: callbackBefore,\r\n                        callbackAfter: callbackAfter,\r\n                        containerId: $attrs.containerId\r\n                    });\r\n\r\n                    return false;\r\n                });\r\n            }\r\n        };\r\n    }]);\r\n\r\n}());"],"file":"../../../libs/ngSmoothScroll/angular-smooth-scroll.js"}