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ng-zorro-antd

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An enterprise-class UI components based on Ant Design and Angular

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(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/cdk/coercion'), require('ng-zorro-antd/core/logger'), require('rxjs'), require('rxjs/operators')) :
    typeof define === 'function' && define.amd ? define('ng-zorro-antd/core/util', ['exports', '@angular/core', '@angular/cdk/coercion', 'ng-zorro-antd/core/logger', 'rxjs', 'rxjs/operators'], factory) :
    (global = global || self, factory((global['ng-zorro-antd'] = global['ng-zorro-antd'] || {}, global['ng-zorro-antd'].core = global['ng-zorro-antd'].core || {}, global['ng-zorro-antd'].core.util = {}), global.ng.core, global.ng.cdk.coercion, global['ng-zorro-antd'].core.logger, global.rxjs, global.rxjs.operators));
}(this, (function (exports, core, coercion, logger, rxjs, operators) { 'use strict';

    /*! *****************************************************************************
    Copyright (c) Microsoft Corporation. All rights reserved.
    Licensed under the Apache License, Version 2.0 (the "License"); you may not use
    this file except in compliance with the License. You may obtain a copy of the
    License at http://www.apache.org/licenses/LICENSE-2.0

    THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
    WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
    MERCHANTABLITY OR NON-INFRINGEMENT.

    See the Apache Version 2.0 License for specific language governing permissions
    and limitations under the License.
    ***************************************************************************** */
    /* global Reflect, Promise */

    var extendStatics = function(d, b) {
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        return extendStatics(d, b);
    };

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    function __exportStar(m, exports) {
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    function __values(o) {
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        var m = typeof Symbol === "function" && o[Symbol.iterator];
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            while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
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        catch (error) { e = { error: error }; }
        finally {
            try {
                if (r && !r.done && (m = i["return"])) m.call(i);
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            finally { if (e) throw e.error; }
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        return ar;
    }

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    function __spreadArrays() {
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    };

    function __await(v) {
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    function __asyncGenerator(thisArg, _arguments, generator) {
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        var g = generator.apply(thisArg, _arguments || []), i, q = [];
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        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); }); }; }
        function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }
        function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }
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        function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }
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    }

    function __asyncValues(o) {
        if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
        var m = o[Symbol.asyncIterator], i;
        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);
        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); }); }; }
        function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
    }

    function __makeTemplateObject(cooked, raw) {
        if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
        return cooked;
    };

    function __importStar(mod) {
        if (mod && mod.__esModule) return mod;
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        if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
        result.default = mod;
        return result;
    }

    function __importDefault(mod) {
        return (mod && mod.__esModule) ? mod : { default: mod };
    }

    function __classPrivateFieldGet(receiver, privateMap) {
        if (!privateMap.has(receiver)) {
            throw new TypeError("attempted to get private field on non-instance");
        }
        return privateMap.get(receiver);
    }

    function __classPrivateFieldSet(receiver, privateMap, value) {
        if (!privateMap.has(receiver)) {
            throw new TypeError("attempted to set private field on non-instance");
        }
        privateMap.set(receiver, value);
        return value;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: array.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    /**
     * @template T
     * @param {?} value
     * @return {?}
     */
    function toArray(value) {
        /** @type {?} */
        var ret;
        if (value == null) {
            ret = [];
        }
        else if (!Array.isArray(value)) {
            ret = [value];
        }
        else {
            ret = value;
        }
        return ret;
    }
    /**
     * @template T
     * @param {?} array1
     * @param {?} array2
     * @return {?}
     */
    function arraysEqual(array1, array2) {
        if (!array1 || !array2 || array1.length !== array2.length) {
            return false;
        }
        /** @type {?} */
        var len = array1.length;
        for (var i = 0; i < len; i++) {
            if (array1[i] !== array2[i]) {
                return false;
            }
        }
        return true;
    }
    /**
     * @template T
     * @param {?} source
     * @return {?}
     */
    function shallowCopyArray(source) {
        return source.slice();
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: check.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @template T
     * @param {?} value
     * @return {?}
     */
    function isNotNil(value) {
        return typeof value !== 'undefined' && value !== null;
    }
    /**
     * @param {?} value
     * @return {?}
     */
    function isNil(value) {
        return typeof value === 'undefined' || value === null;
    }
    /**
     * Examine if two objects are shallowly equaled.
     * @param {?=} objA
     * @param {?=} objB
     * @return {?}
     */
    function shallowEqual(objA, objB) {
        if (objA === objB) {
            return true;
        }
        if (typeof objA !== 'object' || !objA || typeof objB !== 'object' || !objB) {
            return false;
        }
        /** @type {?} */
        var keysA = Object.keys(objA);
        /** @type {?} */
        var keysB = Object.keys(objB);
        if (keysA.length !== keysB.length) {
            return false;
        }
        /** @type {?} */
        var bHasOwnProperty = Object.prototype.hasOwnProperty.bind(objB);
        // tslint:disable-next-line:prefer-for-of
        for (var idx = 0; idx < keysA.length; idx++) {
            /** @type {?} */
            var key = keysA[idx];
            if (!bHasOwnProperty(key)) {
                return false;
            }
            if (objA[key] !== objB[key]) {
                return false;
            }
        }
        return true;
    }
    /**
     * @param {?} value
     * @return {?}
     */
    function isInteger(value) {
        return typeof value === 'number' && isFinite(value) && Math.floor(value) === value;
    }
    /**
     * @param {?} element
     * @return {?}
     */
    function isEmpty(element) {
        /** @type {?} */
        var nodes = element.childNodes;
        for (var i = 0; i < nodes.length; i++) {
            if (filterNotEmptyNode(nodes.item(i))) {
                return false;
            }
        }
        return true;
    }
    /**
     * @param {?} node
     * @return {?}
     */
    function filterNotEmptyNode(node) {
        if (node) {
            if (node.nodeType === 1 && ((/** @type {?} */ (node))).outerHTML.toString().trim().length !== 0) {
                // ELEMENT_NODE
                return node;
            }
            else if (node.nodeType === 3 && (/** @type {?} */ (node.textContent)).toString().trim().length !== 0) {
                // TEXT_NODE
                return node;
            }
            return null;
        }
        return null;
    }
    /**
     * @param {?} value
     * @return {?}
     */
    function isNonEmptyString(value) {
        return typeof value === 'string' && value !== '';
    }
    /**
     * @param {?} value
     * @return {?}
     */
    function isTemplateRef(value) {
        return value instanceof core.TemplateRef;
    }
    /**
     * @param {?} value
     * @return {?}
     */
    function isComponent(value) {
        return value instanceof core.Type;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: convert.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @param {?} value
     * @return {?}
     */
    function toBoolean(value) {
        return coercion.coerceBooleanProperty(value);
    }
    /**
     * @param {?} value
     * @param {?=} fallbackValue
     * @return {?}
     */
    function toNumber(value, fallbackValue) {
        if (fallbackValue === void 0) { fallbackValue = 0; }
        return coercion._isNumberValue(value) ? Number(value) : fallbackValue;
    }
    /**
     * @param {?} value
     * @return {?}
     */
    function toCssPixel(value) {
        return coercion.coerceCssPixelValue(value);
    }
    // tslint:disable no-invalid-this
    /**
     * Get the function-property type's value
     * @template T
     * @param {?} prop
     * @param {...?} args
     * @return {?}
     */
    function valueFunctionProp(prop) {
        var args = [];
        for (var _i = 1; _i < arguments.length; _i++) {
            args[_i - 1] = arguments[_i];
        }
        return typeof prop === 'function' ? prop.apply(void 0, __spread(args)) : prop;
    }
    /**
     * @template T, D
     * @param {?} name
     * @param {?} fallback
     * @return {?}
     */
    function propDecoratorFactory(name, fallback) {
        /**
         * @param {?} target
         * @param {?} propName
         * @param {?=} originalDescriptor
         * @return {?}
         */
        function propDecorator(target, propName, originalDescriptor) {
            /** @type {?} */
            var privatePropName = "$$__" + propName;
            if (Object.prototype.hasOwnProperty.call(target, privatePropName)) {
                logger.warn("The prop \"" + privatePropName + "\" is already exist, it will be overrided by " + name + " decorator.");
            }
            Object.defineProperty(target, privatePropName, {
                configurable: true,
                writable: true
            });
            return {
                get: /**
                 * @return {?}
                 */
                function () {
                    return originalDescriptor && originalDescriptor.get ? originalDescriptor.get.bind(this)() : this[privatePropName];
                },
                set: /**
                 * @param {?} value
                 * @return {?}
                 */
                function (value) {
                    if (originalDescriptor && originalDescriptor.set) {
                        originalDescriptor.set.bind(this)(fallback(value));
                    }
                    this[privatePropName] = fallback(value);
                }
            };
        }
        return propDecorator;
    }
    /**
     * Input decorator that handle a prop to do get/set automatically with toBoolean
     *
     * Why not using \@InputBoolean alone without \@Input? AOT needs \@Input to be visible
     *
     * \@howToUse
     * ```
     * \@Input() \@InputBoolean() visible: boolean = false;
     *
     * // Act as below:
     * // \@Input()
     * // get visible() { return this.__visible; }
     * // set visible(value) { this.__visible = value; }
     * // __visible = false;
     * ```
     * @return {?}
     */
    function InputBoolean() {
        return propDecoratorFactory('InputBoolean', toBoolean);
    }
    /**
     * @return {?}
     */
    function InputCssPixel() {
        return propDecoratorFactory('InputCssPixel', toCssPixel);
    }
    /**
     * @return {?}
     */
    function InputNumber() {
        return propDecoratorFactory('InputNumber', toNumber);
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: dom.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    /**
     * This module provides utility functions to query DOM information or
     * set properties.
     */
    /**
     * Silent an event by stopping and preventing it.
     * @param {?} e
     * @return {?}
     */
    function silentEvent(e) {
        e.stopPropagation();
        e.preventDefault();
    }
    /**
     * @param {?} elem
     * @return {?}
     */
    function getElementOffset(elem) {
        if (!elem.getClientRects().length) {
            return { top: 0, left: 0 };
        }
        /** @type {?} */
        var rect = elem.getBoundingClientRect();
        /** @type {?} */
        var win = (/** @type {?} */ (elem.ownerDocument)).defaultView;
        return {
            top: rect.top + (/** @type {?} */ (win)).pageYOffset,
            left: rect.left + (/** @type {?} */ (win)).pageXOffset
        };
    }
    /**
     * Investigate if an event is a `TouchEvent`.
     * @param {?} event
     * @return {?}
     */
    function isTouchEvent(event) {
        return event.type.startsWith('touch');
    }
    /**
     * @param {?} event
     * @return {?}
     */
    function getEventPosition(event) {
        return isTouchEvent(event) ? event.touches[0] || event.changedTouches[0] : event;
    }
    /**
     * @record
     */
    function MouseTouchObserverConfig() { }
    if (false) {
        /** @type {?} */
        MouseTouchObserverConfig.prototype.end;
        /** @type {?} */
        MouseTouchObserverConfig.prototype.move;
        /** @type {?} */
        MouseTouchObserverConfig.prototype.pluckKey;
        /** @type {?} */
        MouseTouchObserverConfig.prototype.start;
        /** @type {?|undefined} */
        MouseTouchObserverConfig.prototype.end$;
        /** @type {?|undefined} */
        MouseTouchObserverConfig.prototype.moveResolved$;
        /** @type {?|undefined} */
        MouseTouchObserverConfig.prototype.startPlucked$;
        /**
         * @param {?} e
         * @return {?}
         */
        MouseTouchObserverConfig.prototype.filter = function (e) { };
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: getMentions.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    /**
     * @param {?} prefix
     * @return {?}
     */
    function getRegExp(prefix) {
        /** @type {?} */
        var prefixArray = Array.isArray(prefix) ? prefix : [prefix];
        /** @type {?} */
        var prefixToken = prefixArray.join('').replace(/(\$|\^)/g, '\\$1');
        if (prefixArray.length > 1) {
            prefixToken = "[" + prefixToken + "]";
        }
        return new RegExp("(\\s|^)(" + prefixToken + ")[^\\s]*", 'g');
    }
    /**
     * @param {?} value
     * @param {?=} prefix
     * @return {?}
     */
    function getMentions(value, prefix) {
        if (prefix === void 0) { prefix = '@'; }
        if (typeof value !== 'string') {
            return [];
        }
        /** @type {?} */
        var regex = getRegExp(prefix);
        /** @type {?} */
        var mentions = value.match(regex);
        return mentions !== null ? mentions.map((/**
         * @param {?} e
         * @return {?}
         */
        function (e) { return e.trim(); })) : [];
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: string.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    /**
     * Much like lodash.
     * @param {?} toPad
     * @param {?} length
     * @param {?} element
     * @return {?}
     */
    function padStart(toPad, length, element) {
        if (toPad.length > length) {
            return toPad;
        }
        /** @type {?} */
        var joined = "" + getRepeatedElement(length, element) + toPad;
        return joined.slice(joined.length - length, joined.length);
    }
    /**
     * @param {?} toPad
     * @param {?} length
     * @param {?} element
     * @return {?}
     */
    function padEnd(toPad, length, element) {
        /** @type {?} */
        var joined = "" + toPad + getRepeatedElement(length, element);
        return joined.slice(0, length);
    }
    /**
     * @param {?} length
     * @param {?} element
     * @return {?}
     */
    function getRepeatedElement(length, element) {
        return Array(length)
            .fill(element)
            .join('');
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: is-promise.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @template T
     * @param {?} obj
     * @return {?}
     */
    function isPromise(obj) {
        return !!obj && typeof obj.then === 'function' && typeof obj.catch === 'function';
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: number.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    /**
     * @param {?} min
     * @param {?} max
     * @param {?} value
     * @return {?}
     */
    function getPercent(min, max, value) {
        return ((value - min) / (max - min)) * 100;
    }
    /**
     * @param {?} num
     * @return {?}
     */
    function getPrecision(num) {
        /** @type {?} */
        var numStr = num.toString();
        /** @type {?} */
        var dotIndex = numStr.indexOf('.');
        return dotIndex >= 0 ? numStr.length - dotIndex - 1 : 0;
    }
    /**
     * @param {?} num
     * @param {?} min
     * @param {?} max
     * @return {?}
     */
    function ensureNumberInRange(num, min, max) {
        if (isNaN(num) || num < min) {
            return min;
        }
        else if (num > max) {
            return max;
        }
        else {
            return num;
        }
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: scroll-into-view-if-needed.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @param {?} node
     * @return {?}
     */
    function scrollIntoView(node) {
        /** @type {?} */
        var nodeAsAny = (/** @type {?} */ (node));
        if (nodeAsAny.scrollIntoViewIfNeeded) {
            /* tslint:disable-next-line:no-string-literal */
            nodeAsAny.scrollIntoViewIfNeeded(false);
            return;
        }
        if (node.scrollIntoView) {
            node.scrollIntoView(false);
            return;
        }
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: textarea-caret-position.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    // from https://github.com/component/textarea-caret-position
    // We'll copy the properties below into the mirror div.
    // Note that some browsers, such as Firefox, do not concatenate properties
    // into their shorthand (e.g. padding-top, padding-bottom etc. -> padding),
    // so we have to list every single property explicitly.
    /** @type {?} */
    var properties = [
        'direction',
        'boxSizing',
        'width',
        'height',
        'overflowX',
        'overflowY',
        'borderTopWidth',
        'borderRightWidth',
        'borderBottomWidth',
        'borderLeftWidth',
        'borderStyle',
        'paddingTop',
        'paddingRight',
        'paddingBottom',
        'paddingLeft',
        // https://developer.mozilla.org/en-US/docs/Web/CSS/font
        'fontStyle',
        'fontVariant',
        'fontWeight',
        'fontStretch',
        'fontSize',
        'fontSizeAdjust',
        'lineHeight',
        'fontFamily',
        'textAlign',
        'textTransform',
        'textIndent',
        'textDecoration',
        'letterSpacing',
        'wordSpacing',
        'tabSize',
        'MozTabSize'
    ];
    /** @type {?} */
    var isBrowser = typeof window !== 'undefined';
    /** @type {?} */
    var isFirefox = isBrowser && ((/** @type {?} */ (window))).mozInnerScreenX != null;
    /** @type {?} */
    var _parseInt = (/**
     * @param {?} str
     * @return {?}
     */
    function (str) { return parseInt(str, 10); });
    var ɵ0 = _parseInt;
    /**
     * @record
     */
    function Coordinates() { }
    if (false) {
        /** @type {?} */
        Coordinates.prototype.top;
        /** @type {?} */
        Coordinates.prototype.left;
        /** @type {?} */
        Coordinates.prototype.height;
    }
    /**
     * @param {?} element
     * @param {?} position
     * @param {?=} options
     * @return {?}
     */
    function getCaretCoordinates(element, position, options) {
        if (!isBrowser) {
            throw new Error('textarea-caret-position#getCaretCoordinates should only be called in a browser');
        }
        /** @type {?} */
        var debug = (options && options.debug) || false;
        if (debug) {
            /** @type {?} */
            var el = document.querySelector('#input-textarea-caret-position-mirror-div');
            if (el) {
                (/** @type {?} */ (el.parentNode)).removeChild(el);
            }
        }
        // The mirror div will replicate the textarea's style
        /** @type {?} */
        var div = document.createElement('div');
        div.id = 'input-textarea-caret-position-mirror-div';
        document.body.appendChild(div);
        /** @type {?} */
        var style = div.style;
        /** @type {?} */
        var computed = window.getComputedStyle ? window.getComputedStyle(element) : ((/** @type {?} */ (element))).currentStyle;
        // currentStyle for IE < 9
        /** @type {?} */
        var isInput = element.nodeName === 'INPUT';
        // Default textarea styles
        style.whiteSpace = 'pre-wrap';
        if (!isInput) {
            style.wordWrap = 'break-word'; // only for textarea-s
        }
        // Position off-screen
        style.position = 'absolute'; // required to return coordinates properly
        if (!debug) {
            style.visibility = 'hidden';
        } // not 'display: none' because we want rendering
        // Transfer the element's properties to the div
        properties.forEach((/**
         * @param {?} prop
         * @return {?}
         */
        function (prop) {
            if (isInput && prop === 'lineHeight') {
                // Special case for <input>s because text is rendered centered and line height may be != height
                style.lineHeight = computed.height;
            }
            else {
                // @ts-ignore
                style[prop] = computed[prop];
            }
        }));
        if (isFirefox) {
            // Firefox lies about the overflow property for textareas: https://bugzilla.mozilla.org/show_bug.cgi?id=984275
            if (element.scrollHeight > _parseInt(computed.height)) {
                style.overflowY = 'scroll';
            }
        }
        else {
            style.overflow = 'hidden'; // for Chrome to not render a scrollbar; IE keeps overflowY = 'scroll'
        }
        div.textContent = element.value.substring(0, position);
        // The second special handling for input type="text" vs textarea:
        // spaces need to be replaced with non-breaking spaces - http://stackoverflow.com/a/13402035/1269037
        if (isInput) {
            div.textContent = div.textContent.replace(/\s/g, '\u00a0');
        }
        /** @type {?} */
        var span = document.createElement('span');
        // Wrapping must be replicated *exactly*, including when a long word gets
        // onto the next line, with whitespace at the end of the line before (#7).
        // The  *only* reliable way to do that is to copy the *entire* rest of the
        // textarea's content into the <span> created at the caret position.
        // For inputs, just '.' would be enough, but no need to bother.
        span.textContent = element.value.substring(position) || '.'; // || because a completely empty faux span doesn't render at all
        div.appendChild(span);
        /** @type {?} */
        var coordinates = {
            top: span.offsetTop + _parseInt(computed.borderTopWidth),
            left: span.offsetLeft + _parseInt(computed.borderLeftWidth),
            height: _parseInt(computed.lineHeight)
        };
        if (debug) {
            span.style.backgroundColor = '#eee';
            createDebugEle(element, coordinates);
        }
        else {
            document.body.removeChild(div);
        }
        return coordinates;
    }
    /**
     * @param {?} element
     * @param {?} coordinates
     * @return {?}
     */
    function createDebugEle(element, coordinates) {
        /** @type {?} */
        var fontSize = getComputedStyle(element).getPropertyValue('font-size');
        /** @type {?} */
        var rect = ((/** @type {?} */ (document.querySelector('#DEBUG')))) || document.createElement('div');
        document.body.appendChild(rect);
        rect.id = 'DEBUG';
        rect.style.position = 'absolute';
        rect.style.backgroundColor = 'red';
        rect.style.height = fontSize;
        rect.style.width = '1px';
        rect.style.top = element.getBoundingClientRect().top - element.scrollTop + window.pageYOffset + coordinates.top + "px";
        rect.style.left = element.getBoundingClientRect().left - element.scrollLeft + window.pageXOffset + coordinates.left + "px";
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: style.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    /**
     * @param {?} styleName
     * @return {?}
     */
    function isStyleSupport(styleName) {
        if (typeof window !== 'undefined' && window.document && window.document.documentElement) {
            /** @type {?} */
            var styleNameList = Array.isArray(styleName) ? styleName : [styleName];
            var documentElement_1 = window.document.documentElement;
            return styleNameList.some((/**
             * @param {?} name
             * @return {?}
             */
            function (name) { return name in documentElement_1.style; }));
        }
        return false;
    }
    /**
     * @param {?=} styles
     * @return {?}
     */
    function getStyleAsText(styles) {
        if (!styles) {
            return '';
        }
        return Object.keys(styles)
            .map((/**
         * @param {?} key
         * @return {?}
         */
        function (key) {
            /** @type {?} */
            var val = styles[key];
            return key + ":" + (typeof val === 'string' ? val : val + 'px');
        }))
            .join(';');
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: text-measure.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @record
     */
    function MeasureResult() { }
    if (false) {
        /** @type {?} */
        MeasureResult.prototype.finished;
        /** @type {?} */
        MeasureResult.prototype.node;
    }
    // We only handle element & text node.
    /** @type {?} */
    var ELEMENT_NODE = 1;
    /** @type {?} */
    var TEXT_NODE = 3;
    /** @type {?} */
    var COMMENT_NODE = 8;
    /** @type {?} */
    var ellipsisContainer;
    /** @type {?} */
    var wrapperStyle = {
        padding: '0',
        margin: '0',
        display: 'inline',
        lineHeight: 'inherit'
    };
    /**
     * @param {?} value
     * @return {?}
     */
    function pxToNumber(value) {
        if (!value) {
            return 0;
        }
        /** @type {?} */
        var match = value.match(/^\d*(\.\d*)?/);
        return match ? Number(match[0]) : 0;
    }
    /**
     * @param {?} style
     * @return {?}
     */
    function styleToString(style) {
        // There are some different behavior between Firefox & Chrome.
        // We have to handle this ourself.
        /** @type {?} */
        var styleNames = Array.prototype.slice.apply(style);
        return styleNames.map((/**
         * @param {?} name
         * @return {?}
         */
        function (name) { return name + ": " + style.getPropertyValue(name) + ";"; })).join('');
    }
    /**
     * @param {?} children
     * @return {?}
     */
    function mergeChildren(children) {
        /** @type {?} */
        var childList = [];
        children.forEach((/**
         * @param {?} child
         * @return {?}
         */
        function (child) {
            /** @type {?} */
            var prevChild = childList[childList.length - 1];
            if (prevChild && child.nodeType === TEXT_NODE && prevChild.nodeType === TEXT_NODE) {
                ((/** @type {?} */ (prevChild))).data += ((/** @type {?} */ (child))).data;
            }
            else {
                childList.push(child);
            }
        }));
        return childList;
    }
    /**
     * @param {?} originEle
     * @param {?} rows
     * @param {?} contentNodes
     * @param {?} fixedContent
     * @param {?} ellipsisStr
     * @param {?=} suffixStr
     * @return {?}
     */
    function measure(originEle, rows, contentNodes, fixedContent, ellipsisStr, suffixStr) {
        if (suffixStr === void 0) { suffixStr = ''; }
        if (!ellipsisContainer) {
            ellipsisContainer = document.createElement('div');
            ellipsisContainer.setAttribute('aria-hidden', 'true');
            document.body.appendChild(ellipsisContainer);
        }
        // Get origin style
        /** @type {?} */
        var originStyle = window.getComputedStyle(originEle);
        /** @type {?} */
        var originCSS = styleToString(originStyle);
        /** @type {?} */
        var lineHeight = pxToNumber(originStyle.lineHeight);
        /** @type {?} */
        var maxHeight = lineHeight * (rows + 1) + pxToNumber(originStyle.paddingTop) + pxToNumber(originStyle.paddingBottom);
        // Set shadow
        ellipsisContainer.setAttribute('style', originCSS);
        ellipsisContainer.style.position = 'fixed';
        ellipsisContainer.style.left = '0';
        ellipsisContainer.style.height = 'auto';
        ellipsisContainer.style.minHeight = 'auto';
        ellipsisContainer.style.maxHeight = 'auto';
        ellipsisContainer.style.top = '-999999px';
        ellipsisContainer.style.zIndex = '-1000';
        // clean up css overflow
        ellipsisContainer.style.textOverflow = 'clip';
        ellipsisContainer.style.whiteSpace = 'normal';
        ((/** @type {?} */ (ellipsisContainer.style))).webkitLineClamp = 'none';
        /** @type {?} */
        var contentList = mergeChildren(contentNodes);
        /** @type {?} */
        var container = document.createElement('div');
        /** @type {?} */
        var contentContainer = document.createElement('span');
        /** @type {?} */
        var suffixContainer = document.createTextNode(suffixStr);
        /** @type {?} */
        var fixedContainer = document.createElement('span');
        // Add styles in container
        Object.assign(container.style, wrapperStyle);
        Object.assign(contentContainer.style, wrapperStyle);
        Object.assign(fixedContainer.style, wrapperStyle);
        contentList.forEach((/**
         * @param {?} n
         * @return {?}
         */
        function (n) {
            contentContainer.appendChild(n);
        }));
        contentContainer.appendChild(suffixContainer);
        fixedContent.forEach((/**
         * @param {?} node
         * @return {?}
         */
        function (node) {
            fixedContainer.appendChild(node.cloneNode(true));
        }));
        container.appendChild(contentContainer);
        container.appendChild(fixedContainer);
        // Render in the fake container
        ellipsisContainer.appendChild(container);
        // Check if ellipsis in measure div is height enough for content
        /**
         * @return {?}
         */
        function inRange() {
            return ellipsisContainer.offsetHeight < maxHeight;
        }
        if (inRange()) {
            /** @type {?} */
            var text = ellipsisContainer.innerHTML;
            ellipsisContainer.removeChild(container);
            return { contentNodes: contentNodes, text: text, ellipsis: false };
        }
        // We should clone the childNode since they're controlled by React and we can't reuse it without warning
        /** @type {?} */
        var childNodes = Array.prototype.slice
            .apply(ellipsisContainer.childNodes[0].childNodes[0].cloneNode(true).childNodes)
            .filter((/**
         * @param {?} __0
         * @return {?}
         */
        function (_a) {
            var nodeType = _a.nodeType;
            return nodeType !== COMMENT_NODE;
        }));
        /** @type {?} */
        var fixedNodes = Array.prototype.slice.apply(ellipsisContainer.childNodes[0].childNodes[1].cloneNode(true).childNodes);
        ellipsisContainer.removeChild(container);
        // ========================= Find match ellipsis content =========================
        ellipsisContainer.innerHTML = '';
        // Create origin content holder
        /** @type {?} */
        var ellipsisContentHolder = document.createElement('span');
        ellipsisContainer.appendChild(ellipsisContentHolder);
        /** @type {?} */
        var ellipsisTextNode = document.createTextNode(ellipsisStr + suffixStr);
        ellipsisContentHolder.appendChild(ellipsisTextNode);
        fixedNodes.forEach((/**
         * @param {?} childNode
         * @return {?}
         */
        function (childNode) {
            ellipsisContainer.appendChild(childNode);
        }));
        // Append before fixed nodes
        /**
         * @param {?} node
         * @return {?}
         */
        function appendChildNode(node) {
            ellipsisContentHolder.insertBefore(node, ellipsisTextNode);
        }
        // Get maximum text
        /**
         * @param {?} textNode
         * @param {?} fullText
         * @param {?=} startLoc
         * @param {?=} endLoc
         * @param {?=} lastSuccessLoc
         * @return {?}
         */
        function measureText(textNode, fullText, startLoc, endLoc, lastSuccessLoc) {
            if (startLoc === void 0) { startLoc = 0; }
            if (endLoc === void 0) { endLoc = fullText.length; }
            if (lastSuccessLoc === void 0) { lastSuccessLoc = 0; }
            /** @type {?} */
            var midLoc = Math.floor((startLoc + endLoc) / 2);
            textNode.textContent = fullText.slice(0, midLoc);
            if (startLoc >= endLoc - 1) {
                // Loop when step is small
                for (var step = endLoc; step >= startLoc; step -= 1) {
                    /** @type {?} */
                    var currentStepText = fullText.slice(0, step);
                    textNode.textContent = currentStepText;
                    if (inRange() || !currentStepText) {
                        return step === fullText.length
                            ? {
                                finished: false,
                                node: document.createTextNode(fullText)
                            }
                            : {
                                finished: true,
                                node: document.createTextNode(currentStepText)
                            };
                    }
                }
            }
            if (inRange()) {
                return measureText(textNode, fullText, midLoc, endLoc, midLoc);
            }
            else {
                return measureText(textNode, fullText, startLoc, midLoc, lastSuccessLoc);
            }
        }
        /**
         * @param {?} childNode
         * @param {?} index
         * @return {?}
         */
        function measureNode(childNode, index) {
            /** @type {?} */
            var type = childNode.nodeType;
            if (type === ELEMENT_NODE) {
                // We don't split element, it will keep if whole element can be displayed.
                // appendChildNode(childNode);
                if (inRange()) {
                    return {
                        finished: false,
                        node: contentList[index]
                    };
                }
                // Clean up if can not pull in
                ellipsisContentHolder.removeChild(childNode);
                return {
                    finished: true,
                    node: null
                };
            }
            else if (type === TEXT_NODE) {
                /** @type {?} */
                var fullText = childNode.textContent || '';
                /** @type {?} */
                var textNode = document.createTextNode(fullText);
                appendChildNode(textNode);
                return measureText(textNode, fullText);
            }
            // Not handle other type of content
            // PS: This code should not be attached after react 16
            return {
                finished: false,
                node: null
            };
        }
        /** @type {?} */
        var ellipsisNodes = [];
        childNodes.some((/**
         * @param {?} childNode
         * @param {?} index
         * @return {?}
         */
        function (childNode, index) {
            var _a = measureNode(childNode, index), finished = _a.finished, node = _a.node;
            if (node) {
                ellipsisNodes.push(node);
            }
            return finished;
        }));
        /** @type {?} */
        var result = {
            contentNodes: ellipsisNodes,
            text: ellipsisContainer.innerHTML,
            ellipsis: true
        };
        while (ellipsisContainer.firstChild) {
            ellipsisContainer.removeChild(ellipsisContainer.firstChild);
        }
        return result;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: measure-scrollbar.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     * @type {?}
     */
    var scrollbarVerticalSize;
    /** @type {?} */
    var scrollbarHorizontalSize;
    // Measure scrollbar width for padding body during modal show/hide
    /** @type {?} */
    var scrollbarMeasure = {
        position: 'absolute',
        top: '-9999px',
        width: '50px',
        height: '50px'
    };
    /**
     * @param {?=} direction
     * @param {?=} prefix
     * @return {?}
     */
    function measureScrollbar(direction, prefix) {
        if (direction === void 0) { direction = 'vertical'; }
        if (prefix === void 0) { prefix = 'ant'; }
        if (typeof document === 'undefined' || typeof window === 'undefined') {
            return 0;
        }
        /** @type {?} */
        var isVertical = direction === 'vertical';
        if (isVertical && scrollbarVerticalSize) {
            return scrollbarVerticalSize;
        }
        else if (!isVertical && scrollbarHorizontalSize) {
            return scrollbarHorizontalSize;
        }
        /** @type {?} */
        var scrollDiv = document.createElement('div');
        Object.keys(scrollbarMeasure).forEach((/**
         * @param {?} scrollProp
         * @return {?}
         */
        function (scrollProp) {
            // @ts-ignore
            scrollDiv.style[scrollProp] = scrollbarMeasure[scrollProp];
        }));
        // apply hide scrollbar className ahead
        scrollDiv.className = prefix + "-hide-scrollbar scroll-div-append-to-body";
        // Append related overflow style
        if (isVertical) {
            scrollDiv.style.overflowY = 'scroll';
        }
        else {
            scrollDiv.style.overflowX = 'scroll';
        }
        document.body.appendChild(scrollDiv);
        /** @type {?} */
        var size = 0;
        if (isVertical) {
            size = scrollDiv.offsetWidth - scrollDiv.clientWidth;
            scrollbarVerticalSize = size;
        }
        else {
            size = scrollDiv.offsetHeight - scrollDiv.clientHeight;
            scrollbarHorizontalSize = size;
        }
        document.body.removeChild(scrollDiv);
        return size;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: ensure-in-bounds.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    /**
     * @param {?} value
     * @param {?} boundValue
     * @return {?}
     */
    function ensureInBounds(value, boundValue) {
        return value ? (value < boundValue ? value : boundValue) : boundValue;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: tick.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @return {?}
     */
    function inNextTick() {
        /** @type {?} */
        var timer = new rxjs.Subject();
        Promise.resolve().then((/**
         * @return {?}
         */
        function () { return timer.next(); }));
        return timer.pipe(operators.take(1));
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: observable.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /**
     * @template T
     * @param {?} value
     * @return {?}
     */
    function wrapIntoObservable(value) {
        if (rxjs.isObservable(value)) {
            return value;
        }
        if (isPromise(value)) {
            // Use `Promise.resolve()` to wrap promise-like instances.
            return rxjs.from(Promise.resolve(value));
        }
        return rxjs.of(value);
    }

    exports.InputBoolean = InputBoolean;
    exports.InputCssPixel = InputCssPixel;
    exports.InputNumber = InputNumber;
    exports.arraysEqual = arraysEqual;
    exports.createDebugEle = createDebugEle;
    exports.ensureInBounds = ensureInBounds;
    exports.ensureNumberInRange = ensureNumberInRange;
    exports.filterNotEmptyNode = filterNotEmptyNode;
    exports.getCaretCoordinates = getCaretCoordinates;
    exports.getElementOffset = getElementOffset;
    exports.getEventPosition = getEventPosition;
    exports.getMentions = getMentions;
    exports.getPercent = getPercent;
    exports.getPrecision = getPrecision;
    exports.getRegExp = getRegExp;
    exports.getRepeatedElement = getRepeatedElement;
    exports.getStyleAsText = getStyleAsText;
    exports.inNextTick = inNextTick;
    exports.isComponent = isComponent;
    exports.isEmpty = isEmpty;
    exports.isInteger = isInteger;
    exports.isNil = isNil;
    exports.isNonEmptyString = isNonEmptyString;
    exports.isNotNil = isNotNil;
    exports.isPromise = isPromise;
    exports.isStyleSupport = isStyleSupport;
    exports.isTemplateRef = isTemplateRef;
    exports.isTouchEvent = isTouchEvent;
    exports.measure = measure;
    exports.measureScrollbar = measureScrollbar;
    exports.padEnd = padEnd;
    exports.padStart = padStart;
    exports.properties = properties;
    exports.pxToNumber = pxToNumber;
    exports.scrollIntoView = scrollIntoView;
    exports.shallowCopyArray = shallowCopyArray;
    exports.shallowEqual = shallowEqual;
    exports.silentEvent = silentEvent;
    exports.toArray = toArray;
    exports.toBoolean = toBoolean;
    exports.toCssPixel = toCssPixel;
    exports.toNumber = toNumber;
    exports.valueFunctionProp = valueFunctionProp;
    exports.wrapIntoObservable = wrapIntoObservable;

    Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=ng-zorro-antd-core-util.umd.js.map