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*****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n    return new (P || (P = Promise))(function (resolve, reject) {\r\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n    });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n    return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n    function verb(n) { return function (v) { return step([n, v]); }; }\r\n    function step(op) {\r\n        if (f) throw new TypeError(\"Generator is already executing.\");\r\n        while (_) try {\r\n            if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n            if (y = 0, t) op = [op[0] & 2, t.value];\r\n            switch (op[0]) {\r\n                case 0: case 1: t = op; break;\r\n                case 4: _.label++; return { value: op[1], done: false };\r\n                case 5: _.label++; y = op[1]; op = [0]; continue;\r\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n                default:\r\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n                    if (t[2]) _.ops.pop();\r\n                    _.trys.pop(); continue;\r\n            }\r\n            op = body.call(thisArg, _);\r\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n    }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n    for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n    var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n    if (m) return m.call(o);\r\n    if (o && typeof o.length === \"number\") return {\r\n        next: function () {\r\n            if (o && i >= o.length) o = void 0;\r\n            return { value: o && o[i++], done: !o };\r\n        }\r\n    };\r\n    throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n    if (!m) return o;\r\n    var i = m.call(o), r, ar = [], e;\r\n    try {\r\n        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n    }\r\n    catch (error) { e = { error: error }; }\r\n    finally {\r\n        try {\r\n            if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n        }\r\n        finally { if (e) throw e.error; }\r\n    }\r\n    return ar;\r\n}\r\n\r\nexport function __spread() {\r\n    for (var ar = [], i = 0; i < arguments.length; i++)\r\n        ar = ar.concat(__read(arguments[i]));\r\n    return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n            r[k] = a[j];\r\n    return r;\r\n};\r\n\r\nexport function __await(v) {\r\n    return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to get private field on non-instance\");\r\n    }\r\n    return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to set private field on non-instance\");\r\n    }\r\n    privateMap.set(receiver, value);\r\n    return value;\r\n}\r\n","/**\n * @dynamic is for runtime initializing DomHandler.browser\n *\n * If delete below comment, we can see this error message:\n *  Metadata collected contains an error that will be reported at runtime:\n *  Only initialized variables and constants can be referenced\n *  because the value of this variable is needed by the template compiler.\n */\n// @dynamic\nexport class DomHandler {\n\n    public static zindex: number = 1000;\n\n    private static calculatedScrollbarWidth: number = null;\n\n    private static calculatedScrollbarHeight: number = null;\n\n    private static browser: any;\n\n    public static addClass(element: any, className: string): void {\n        if (element.classList)\n            element.classList.add(className);\n        else\n            element.className += ' ' + className;\n    }\n\n    public static addMultipleClasses(element: any, className: string): void {\n        if (element.classList) {\n            let styles: string[] = className.trim().split(' ');\n            for (let i = 0; i < styles.length; i++) {\n                element.classList.add(styles[i]);\n            }\n\n        }\n        else {\n            let styles: string[] = className.split(' ');\n            for (let i = 0; i < styles.length; i++) {\n                element.className += ' ' + styles[i];\n            }\n        }\n    }\n\n    public static removeClass(element: any, className: string): void {\n        if (element.classList)\n            element.classList.remove(className);\n        else\n            element.className = element.className.replace(new RegExp('(^|\\\\b)' + className.split(' ').join('|') + '(\\\\b|$)', 'gi'), ' ');\n    }\n\n    public static hasClass(element: any, className: string): boolean {\n        if (element.classList)\n            return element.classList.contains(className);\n        else\n            return new RegExp('(^| )' + className + '( |$)', 'gi').test(element.className);\n    }\n\n    public static siblings(element: any): any {\n        return Array.prototype.filter.call(element.parentNode.children, function (child) {\n            return child !== element;\n        });\n    }\n\n    public static find(element: any, selector: string): any[] {\n        return Array.from(element.querySelectorAll(selector));\n    }\n\n    public static findSingle(element: any, selector: string): any {\n        if (element) {\n            return element.querySelector(selector);\n        }\n        return null;\n    }\n\n    public static index(element: any): number {\n        let children = element.parentNode.childNodes;\n        let num = 0;\n        for (var i = 0; i < children.length; i++) {\n            if (children[i] == element) return num;\n            if (children[i].nodeType == 1) num++;\n        }\n        return -1;\n    }\n\n    public static indexWithinGroup(element: any, attributeName: string): number {\n        let children = element.parentNode ? element.parentNode.childNodes : [];\n        let num = 0;\n        for (var i = 0; i < children.length; i++) {\n            if (children[i] == element) return num;\n            if (children[i].attributes && children[i].attributes[attributeName] && children[i].nodeType == 1) num++;\n        }\n        return -1;\n    }\n\n    public static relativePosition(element: any, target: any): void {\n        let elementDimensions = element.offsetParent ? { width: element.offsetWidth, height: element.offsetHeight } : this.getHiddenElementDimensions(element);\n        const targetHeight = target.offsetHeight;\n        const targetOffset = target.getBoundingClientRect();\n        const viewport = this.getViewport();\n        let top: number, left: number;\n\n        if ((targetOffset.top + targetHeight + elementDimensions.height) > viewport.height) {\n            top = -1 * (elementDimensions.height);\n            element.style.transformOrigin = 'bottom';\n            if (targetOffset.top + top < 0) {\n                top = -1 * targetOffset.top;\n            }\n        }\n        else {\n            top = targetHeight;\n            element.style.transformOrigin = 'top';\n        }\n\n        if (elementDimensions.width > viewport.width) {\n            // element wider then viewport and cannot fit on screen (align at left side of viewport)\n            left = targetOffset.left * -1;\n        }\n        else if ((targetOffset.left + elementDimensions.width) > viewport.width) {\n            // element wider then viewport but can be fit on screen (align at right side of viewport)\n            left = (targetOffset.left + elementDimensions.width - viewport.width) * -1;\n        }\n        else {\n            // element fits on screen (align with target)\n            left = 0;\n        }\n\n        element.style.top = top + 'px';\n        element.style.left = left + 'px';\n    }\n\n    public static absolutePosition(element: any, target: any): void {\n        let elementDimensions = element.offsetParent ? { width: element.offsetWidth, height: element.offsetHeight } : this.getHiddenElementDimensions(element);\n        let elementOuterHeight = elementDimensions.height;\n        let elementOuterWidth = elementDimensions.width;\n        let targetOuterHeight = target.offsetHeight;\n        let targetOuterWidth = target.offsetWidth;\n        let targetOffset = target.getBoundingClientRect();\n        let windowScrollTop = this.getWindowScrollTop();\n        let windowScrollLeft = this.getWindowScrollLeft();\n        let viewport = this.getViewport();\n        let top, left;\n\n        if (targetOffset.top + targetOuterHeight + elementOuterHeight > viewport.height) {\n            top = targetOffset.top + windowScrollTop - elementOuterHeight;\n            element.style.transformOrigin = 'bottom';\n\n            if (top < 0) {\n                top = windowScrollTop;\n            }\n        }\n        else {\n            top = targetOuterHeight + targetOffset.top + windowScrollTop;\n            element.style.transformOrigin = 'top';\n        }\n\n        if (targetOffset.left + elementOuterWidth > viewport.width)\n            left = Math.max(0, targetOffset.left + windowScrollLeft + targetOuterWidth - elementOuterWidth);\n        else\n            left = targetOffset.left + windowScrollLeft;\n\n        element.style.top = top + 'px';\n        element.style.left = left + 'px';\n    }\n\n    static getParents(element: any, parents:any = []): any {\n        return element['parentNode'] === null ? parents : this.getParents(element.parentNode, parents.concat([element.parentNode]));\n    }\n\n    static getScrollableParents(element: any) {\n        let scrollableParents = [];\n\n        if (element) {\n            let parents = this.getParents(element);\n            const overflowRegex = /(auto|scroll)/;\n            const overflowCheck = (node: any) => {\n                let styleDeclaration = window['getComputedStyle'](node, null);\n                return overflowRegex.test(styleDeclaration.getPropertyValue('overflow')) || overflowRegex.test(styleDeclaration.getPropertyValue('overflowX')) || overflowRegex.test(styleDeclaration.getPropertyValue('overflowY'));\n            };\n\n            for (let parent of parents) {\n                let scrollSelectors = parent.nodeType === 1 && parent.dataset['scrollselectors'];\n                if (scrollSelectors) {\n                    let selectors = scrollSelectors.split(',');\n                    for (let selector of selectors) {\n                        let el = this.findSingle(parent, selector);\n                        if (el && overflowCheck(el)) {\n                            scrollableParents.push(el);\n                        }\n                    }\n                }\n            }\n        }\n\n        return scrollableParents;\n    }\n\n    public static getHiddenElementOuterHeight(element: any): number {\n        element.style.visibility = 'hidden';\n        element.style.display = 'block';\n        let elementHeight = element.offsetHeight;\n        element.style.display = 'none';\n        element.style.visibility = 'visible';\n\n        return elementHeight;\n    }\n\n    public static getHiddenElementOuterWidth(element: any): number {\n        element.style.visibility = 'hidden';\n        element.style.display = 'block';\n        let elementWidth = element.offsetWidth;\n        element.style.display = 'none';\n        element.style.visibility = 'visible';\n\n        return elementWidth;\n    }\n\n    public static getHiddenElementDimensions(element: any): any {\n        let dimensions: any = {};\n        element.style.visibility = 'hidden';\n        element.style.display = 'block';\n        dimensions.width = element.offsetWidth;\n        dimensions.height = element.offsetHeight;\n        element.style.display = 'none';\n        element.style.visibility = 'visible';\n\n        return dimensions;\n    }\n\n    public static scrollInView(container, item) {\n        let borderTopValue: string = getComputedStyle(container).getPropertyValue('borderTopWidth');\n        let borderTop: number = borderTopValue ? parseFloat(borderTopValue) : 0;\n        let paddingTopValue: string = getComputedStyle(container).getPropertyValue('paddingTop');\n        let paddingTop: number = paddingTopValue ? parseFloat(paddingTopValue) : 0;\n        let containerRect = container.getBoundingClientRect();\n        let itemRect = item.getBoundingClientRect();\n        let offset = (itemRect.top + document.body.scrollTop) - (containerRect.top + document.body.scrollTop) - borderTop - paddingTop;\n        let scroll = container.scrollTop;\n        let elementHeight = container.clientHeight;\n        let itemHeight = this.getOuterHeight(item);\n\n        if (offset < 0) {\n            container.scrollTop = scroll + offset;\n        }\n        else if ((offset + itemHeight) > elementHeight) {\n            container.scrollTop = scroll + offset - elementHeight + itemHeight;\n        }\n    }\n\n    public static fadeIn(element, duration: number): void {\n        element.style.opacity = 0;\n\n        let last = +new Date();\n        let opacity = 0;\n        let tick = function () {\n            opacity = +element.style.opacity.replace(\",\", \".\") + (new Date().getTime() - last) / duration;\n            element.style.opacity = opacity;\n            last = +new Date();\n\n            if (+opacity < 1) {\n                (window.requestAnimationFrame && requestAnimationFrame(tick)) || setTimeout(tick, 16);\n            }\n        };\n\n        tick();\n    }\n\n    public static fadeOut(element, ms) {\n        var opacity = 1,\n            interval = 50,\n            duration = ms,\n            gap = interval / duration;\n\n        let fading = setInterval(() => {\n            opacity = opacity - gap;\n\n            if (opacity <= 0) {\n                opacity = 0;\n                clearInterval(fading);\n            }\n\n            element.style.opacity = opacity;\n        }, interval);\n    }\n\n    public static getWindowScrollTop(): number {\n        let doc = document.documentElement;\n        return (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0);\n    }\n\n    public static getWindowScrollLeft(): number {\n        let doc = document.documentElement;\n        return (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0);\n    }\n\n    public static matches(element, selector: string): boolean {\n        var p = Element.prototype;\n        var f = p['matches'] || p.webkitMatchesSelector || p['mozMatchesSelector'] || p['msMatchesSelector'] || function (s) {\n            return [].indexOf.call(document.querySelectorAll(s), this) !== -1;\n        };\n        return f.call(element, selector);\n    }\n\n    public static getOuterWidth(el, margin?) {\n        let width = el.offsetWidth;\n\n        if (margin) {\n            let style = getComputedStyle(el);\n            width += parseFloat(style.marginLeft) + parseFloat(style.marginRight);\n        }\n\n        return width;\n    }\n\n    public static getHorizontalPadding(el) {\n        let style = getComputedStyle(el);\n        return parseFloat(style.paddingLeft) + parseFloat(style.paddingRight);\n    }\n\n    public static getHorizontalMargin(el) {\n        let style = getComputedStyle(el);\n        return parseFloat(style.marginLeft) + parseFloat(style.marginRight);\n    }\n\n    public static innerWidth(el) {\n        let width = el.offsetWidth;\n        let style = getComputedStyle(el);\n\n        width += parseFloat(style.paddingLeft) + parseFloat(style.paddingRight);\n        return width;\n    }\n\n    public static width(el) {\n        let width = el.offsetWidth;\n        let style = getComputedStyle(el);\n\n        width -= parseFloat(style.paddingLeft) + parseFloat(style.paddingRight);\n        return width;\n    }\n\n    public static getInnerHeight(el) {\n        let height = el.offsetHeight;\n        let style = getComputedStyle(el);\n\n        height += parseFloat(style.paddingTop) + parseFloat(style.paddingBottom);\n        return height;\n    }\n\n    public static getOuterHeight(el, margin?) {\n        let height = el.offsetHeight;\n\n        if (margin) {\n            let style = getComputedStyle(el);\n            height += parseFloat(style.marginTop) + parseFloat(style.marginBottom);\n        }\n\n        return height;\n    }\n\n    public static getHeight(el): number {\n        let height = el.offsetHeight;\n        let style = getComputedStyle(el);\n\n        height -= parseFloat(style.paddingTop) + parseFloat(style.paddingBottom) + parseFloat(style.borderTopWidth) + parseFloat(style.borderBottomWidth);\n\n        return height;\n    }\n\n    public static getWidth(el): number {\n        let width = el.offsetWidth;\n        let style = getComputedStyle(el);\n\n        width -= parseFloat(style.paddingLeft) + parseFloat(style.paddingRight) + parseFloat(style.borderLeftWidth) + parseFloat(style.borderRightWidth);\n\n        return width;\n    }\n\n    public static getViewport(): any {\n        let win = window,\n            d = document,\n            e = d.documentElement,\n            g = d.getElementsByTagName('body')[0],\n            w = win.innerWidth || e.clientWidth || g.clientWidth,\n            h = win.innerHeight || e.clientHeight || g.clientHeight;\n\n        return { width: w, height: h };\n    }\n\n    public static getOffset(el) {\n        var rect = el.getBoundingClientRect();\n\n        return {\n            top: rect.top + (window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0),\n            left: rect.left + (window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0),\n        };\n    }\n\n    public static replaceElementWith(element: any, replacementElement: any): any {\n        let parentNode = element.parentNode;\n        if (!parentNode)\n            throw `Can't replace element`;\n        return parentNode.replaceChild(replacementElement, element);\n    }\n\n    public static getUserAgent(): string {\n        return navigator.userAgent;\n    }\n\n    public static  isIE() {\n        var ua = window.navigator.userAgent;\n\n        var msie = ua.indexOf('MSIE ');\n        if (msie > 0) {\n            // IE 10 or older => return version number\n            return true;\n        }\n\n        var trident = ua.indexOf('Trident/');\n        if (trident > 0) {\n            // IE 11 => return version number\n            var rv = ua.indexOf('rv:');\n            return true;\n        }\n\n        var edge = ua.indexOf('Edge/');\n        if (edge > 0) {\n           // Edge (IE 12+) => return version number\n           return true;\n        }\n\n        // other browser\n        return false;\n    }\n\n    public static isIOS() {\n        return /iPad|iPhone|iPod/.test(navigator.userAgent) && !window['MSStream'];\n    }\n\n    public static isAndroid() {\n        return /(android)/i.test(navigator.userAgent);\n    }\n\n    public static appendChild(element: any, target: any) {\n        if (this.isElement(target))\n            target.appendChild(element);\n        else if (target.el && target.el.nativeElement)\n            target.el.nativeElement.appendChild(element);\n        else\n            throw 'Cannot append ' + target + ' to ' + element;\n    }\n\n    public static removeChild(element: any, target: any) {\n        if (this.isElement(target))\n            target.removeChild(element);\n        else if (target.el && target.el.nativeElement)\n            target.el.nativeElement.removeChild(element);\n        else\n            throw 'Cannot remove ' + element + ' from ' + target;\n    }\n\n    public static removeElement(element: Element) {\n        if (!('remove' in Element.prototype))\n            element.parentNode.removeChild(element);\n        else\n            element.remove();\n    }\n\n    public static isElement(obj: any) {\n        return (typeof HTMLElement === \"object\" ? obj instanceof HTMLElement :\n            obj && typeof obj === \"object\" && obj !== null && obj.nodeType === 1 && typeof obj.nodeName === \"string\"\n        );\n    }\n\n    public static calculateScrollbarWidth(el?: HTMLElement): number {\n        if (el) {\n            let style = getComputedStyle(el);\n            return (el.offsetWidth - el.clientWidth - parseFloat(style.borderLeftWidth) - parseFloat(style.borderRightWidth));\n        }\n        else {\n            if (this.calculatedScrollbarWidth !== null)\n                return this.calculatedScrollbarWidth;\n\n            let scrollDiv = document.createElement(\"div\");\n            scrollDiv.className = \"p-scrollbar-measure\";\n            document.body.appendChild(scrollDiv);\n\n            let scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth;\n            document.body.removeChild(scrollDiv);\n\n            this.calculatedScrollbarWidth = scrollbarWidth;\n\n            return scrollbarWidth;\n        }\n    }\n\n    public static calculateScrollbarHeight(): number {\n        if (this.calculatedScrollbarHeight !== null)\n            return this.calculatedScrollbarHeight;\n\n        let scrollDiv = document.createElement(\"div\");\n        scrollDiv.className = \"p-scrollbar-measure\";\n        document.body.appendChild(scrollDiv);\n\n        let scrollbarHeight = scrollDiv.offsetHeight - scrollDiv.clientHeight;\n        document.body.removeChild(scrollDiv);\n\n        this.calculatedScrollbarWidth = scrollbarHeight;\n\n        return scrollbarHeight;\n    }\n\n    public static invokeElementMethod(element: any, methodName: string, args?: any[]): void {\n        (element as any)[methodName].apply(element, args);\n    }\n\n    public static clearSelection(): void {\n        if (window.getSelection) {\n            if (window.getSelection().empty) {\n                window.getSelection().empty();\n            } else if (window.getSelection().removeAllRanges && window.getSelection().rangeCount > 0 && window.getSelection().getRangeAt(0).getClientRects().length > 0) {\n                window.getSelection().removeAllRanges();\n            }\n        }\n        else if (document['selection'] && document['selection'].empty) {\n            try {\n                document['selection'].empty();\n            } catch(error) {\n                //ignore IE bug\n            }\n        }\n    }\n\n    public static getBrowser() {\n        if (!this.browser) {\n            let matched = this.resolveUserAgent();\n            this.browser = {};\n\n            if (matched.browser) {\n                this.browser[matched.browser] = true;\n                this.browser['version'] = matched.version;\n            }\n\n            if (this.browser['chrome']) {\n                this.browser['webkit'] = true;\n            } else if (this.browser['webkit']) {\n                this.browser['safari'] = true;\n            }\n        }\n\n        return this.browser;\n    }\n\n    public static resolveUserAgent() {\n        let ua = navigator.userAgent.toLowerCase();\n        let match = /(chrome)[ \\/]([\\w.]+)/.exec(ua) ||\n            /(webkit)[ \\/]([\\w.]+)/.exec(ua) ||\n            /(opera)(?:.*version|)[ \\/]([\\w.]+)/.exec(ua) ||\n            /(msie) ([\\w.]+)/.exec(ua) ||\n            ua.indexOf(\"compatible\") < 0 && /(mozilla)(?:.*? rv:([\\w.]+)|)/.exec(ua) ||\n            [];\n\n        return {\n            browser: match[1] || \"\",\n            version: match[2] || \"0\"\n        };\n    }\n\n    public static isInteger(value): boolean {\n        if (Number.isInteger) {\n            return Number.isInteger(value);\n        }\n        else {\n            return typeof value === \"number\" && isFinite(value) &&  Math.floor(value) === value;\n        }\n    }\n\n    public static isHidden(element: HTMLElement): boolean {\n        return element.offsetParent === null;\n    }\n\n    public static getFocusableElements(element:HTMLElement) {\n        let focusableElements = DomHandler.find(element,`button:not([tabindex = \"-1\"]):not([disabled]):not([style*=\"display:none\"]):not([hidden]),\n                [href][clientHeight][clientWidth]:not([tabindex = \"-1\"]):not([disabled]):not([style*=\"display:none\"]):not([hidden]),\n                input:not([tabindex = \"-1\"]):not([disabled]):not([style*=\"display:none\"]):not([hidden]), select:not([tabindex = \"-1\"]):not([disabled]):not([style*=\"display:none\"]):not([hidden]),\n                textarea:not([tabindex = \"-1\"]):not([disabled]):not([style*=\"display:none\"]):not([hidden]), [tabIndex]:not([tabIndex = \"-1\"]):not([disabled]):not([style*=\"display:none\"]):not([hidden]),\n                [contenteditable]:not([tabIndex = \"-1\"]):not([disabled]):not([style*=\"display:none\"]):not([hidden])`\n            );\n\n            let visibleFocusableElements = [];\n            for(let focusableElement of focusableElements) {\n                if (getComputedStyle(focusableElement).display != \"none\" && getComputedStyle(focusableElement).visibility != \"hidden\")\n                    visibleFocusableElements.push(focusableElement);\n            }\n        return visibleFocusableElements;\n    }\n\n    static generateZIndex() {\n        this.zindex = this.zindex||999;\n        return ++this.zindex;\n    }\n}\n","import {DomHandler} from './domhandler';\n\nexport class ConnectedOverlayScrollHandler {\n\n    element: any;\n\n    listener: any;\n\n    scrollableParents: any;\n\n    constructor(element: any, listener: any = () => {}) {\n        this.element = element;\n        this.listener = listener;\n    }\n\n    bindScrollListener() {\n        this.scrollableParents = DomHandler.getScrollableParents(this.element);\n        for (let i = 0; i < this.scrollableParents.length; i++) {\n            this.scrollableParents[i].addEventListener('scroll', this.listener);\n        }\n    }\n\n    unbindScrollListener() {\n        if (this.scrollableParents) {\n            for (let i = 0; i < this.scrollableParents.length; i++) {\n                this.scrollableParents[i].removeEventListener('scroll', this.listener);\n            }\n        }\n    }\n\n    destroy() {\n        this.unbindScrollListener();\n        this.element = null;\n        this.listener = null;\n        this.scrollableParents = null;\n    }\n}\n"]}