| Current File : /home/tradevaly/www/public/assets/libs/simplebar/simplebar.min.js |
/**
* SimpleBar.js - v4.2.3
* Scrollbars, simpler.
* https://grsmto.github.io/simplebar/
*
* Made by Adrien Denat from a fork by Jonathan Nicol
* Under MIT License
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = global || self, global.SimpleBar = factory());
}(this, function () { 'use strict';
var aFunction = function (it) {
if (typeof it != 'function') {
throw TypeError(String(it) + ' is not a function');
} return it;
};
// optional / simple context binding
var bindContext = function (fn, that, length) {
aFunction(fn);
if (that === undefined) return fn;
switch (length) {
case 0: return function () {
return fn.call(that);
};
case 1: return function (a) {
return fn.call(that, a);
};
case 2: return function (a, b) {
return fn.call(that, a, b);
};
case 3: return function (a, b, c) {
return fn.call(that, a, b, c);
};
}
return function (/* ...args */) {
return fn.apply(that, arguments);
};
};
var fails = function (exec) {
try {
return !!exec();
} catch (error) {
return true;
}
};
var toString = {}.toString;
var classofRaw = function (it) {
return toString.call(it).slice(8, -1);
};
// fallback for non-array-like ES3 and non-enumerable old V8 strings
var split = ''.split;
var indexedObject = fails(function () {
// throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
// eslint-disable-next-line no-prototype-builtins
return !Object('z').propertyIsEnumerable(0);
}) ? function (it) {
return classofRaw(it) == 'String' ? split.call(it, '') : Object(it);
} : Object;
// `RequireObjectCoercible` abstract operation
// https://tc39.github.io/ecma262/#sec-requireobjectcoercible
var requireObjectCoercible = function (it) {
if (it == undefined) throw TypeError("Can't call method on " + it);
return it;
};
// `ToObject` abstract operation
// https://tc39.github.io/ecma262/#sec-toobject
var toObject = function (argument) {
return Object(requireObjectCoercible(argument));
};
var ceil = Math.ceil;
var floor = Math.floor;
// `ToInteger` abstract operation
// https://tc39.github.io/ecma262/#sec-tointeger
var toInteger = function (argument) {
return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);
};
var min = Math.min;
// `ToLength` abstract operation
// https://tc39.github.io/ecma262/#sec-tolength
var toLength = function (argument) {
return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
};
var isObject = function (it) {
return typeof it === 'object' ? it !== null : typeof it === 'function';
};
// `IsArray` abstract operation
// https://tc39.github.io/ecma262/#sec-isarray
var isArray = Array.isArray || function isArray(arg) {
return classofRaw(arg) == 'Array';
};
var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
function createCommonjsModule(fn, module) {
return module = { exports: {} }, fn(module, module.exports), module.exports;
}
// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
var global$1 = typeof window == 'object' && window && window.Math == Math ? window
: typeof self == 'object' && self && self.Math == Math ? self
// eslint-disable-next-line no-new-func
: Function('return this')();
// Thank's IE8 for his funny defineProperty
var descriptors = !fails(function () {
return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
});
var document$1 = global$1.document;
// typeof document.createElement is 'object' in old IE
var exist = isObject(document$1) && isObject(document$1.createElement);
var documentCreateElement = function (it) {
return exist ? document$1.createElement(it) : {};
};
// Thank's IE8 for his funny defineProperty
var ie8DomDefine = !descriptors && !fails(function () {
return Object.defineProperty(documentCreateElement('div'), 'a', {
get: function () { return 7; }
}).a != 7;
});
var anObject = function (it) {
if (!isObject(it)) {
throw TypeError(String(it) + ' is not an object');
} return it;
};
// 7.1.1 ToPrimitive(input [, PreferredType])
// instead of the ES6 spec version, we didn't implement @@toPrimitive case
// and the second argument - flag - preferred type is a string
var toPrimitive = function (it, S) {
if (!isObject(it)) return it;
var fn, val;
if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
throw TypeError("Can't convert object to primitive value");
};
var nativeDefineProperty = Object.defineProperty;
var f = descriptors ? nativeDefineProperty : function defineProperty(O, P, Attributes) {
anObject(O);
P = toPrimitive(P, true);
anObject(Attributes);
if (ie8DomDefine) try {
return nativeDefineProperty(O, P, Attributes);
} catch (error) { /* empty */ }
if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');
if ('value' in Attributes) O[P] = Attributes.value;
return O;
};
var objectDefineProperty = {
f: f
};
var createPropertyDescriptor = function (bitmap, value) {
return {
enumerable: !(bitmap & 1),
configurable: !(bitmap & 2),
writable: !(bitmap & 4),
value: value
};
};
var hide = descriptors ? function (object, key, value) {
return objectDefineProperty.f(object, key, createPropertyDescriptor(1, value));
} : function (object, key, value) {
object[key] = value;
return object;
};
var setGlobal = function (key, value) {
try {
hide(global$1, key, value);
} catch (error) {
global$1[key] = value;
} return value;
};
var shared = createCommonjsModule(function (module) {
var SHARED = '__core-js_shared__';
var store = global$1[SHARED] || setGlobal(SHARED, {});
(module.exports = function (key, value) {
return store[key] || (store[key] = value !== undefined ? value : {});
})('versions', []).push({
version: '3.0.1',
mode: 'global',
copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
});
});
var id = 0;
var postfix = Math.random();
var uid = function (key) {
return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + postfix).toString(36));
};
// Chrome 38 Symbol has incorrect toString conversion
var nativeSymbol = !fails(function () {
// eslint-disable-next-line no-undef
return !String(Symbol());
});
var store = shared('wks');
var Symbol$1 = global$1.Symbol;
var wellKnownSymbol = function (name) {
return store[name] || (store[name] = nativeSymbol && Symbol$1[name]
|| (nativeSymbol ? Symbol$1 : uid)('Symbol.' + name));
};
var SPECIES = wellKnownSymbol('species');
// `ArraySpeciesCreate` abstract operation
// https://tc39.github.io/ecma262/#sec-arrayspeciescreate
var arraySpeciesCreate = function (originalArray, length) {
var C;
if (isArray(originalArray)) {
C = originalArray.constructor;
// cross-realm fallback
if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;
else if (isObject(C)) {
C = C[SPECIES];
if (C === null) C = undefined;
}
} return new (C === undefined ? Array : C)(length === 0 ? 0 : length);
};
// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex }` methods implementation
// 0 -> Array#forEach
// https://tc39.github.io/ecma262/#sec-array.prototype.foreach
// 1 -> Array#map
// https://tc39.github.io/ecma262/#sec-array.prototype.map
// 2 -> Array#filter
// https://tc39.github.io/ecma262/#sec-array.prototype.filter
// 3 -> Array#some
// https://tc39.github.io/ecma262/#sec-array.prototype.some
// 4 -> Array#every
// https://tc39.github.io/ecma262/#sec-array.prototype.every
// 5 -> Array#find
// https://tc39.github.io/ecma262/#sec-array.prototype.find
// 6 -> Array#findIndex
// https://tc39.github.io/ecma262/#sec-array.prototype.findIndex
var arrayMethods = function (TYPE, specificCreate) {
var IS_MAP = TYPE == 1;
var IS_FILTER = TYPE == 2;
var IS_SOME = TYPE == 3;
var IS_EVERY = TYPE == 4;
var IS_FIND_INDEX = TYPE == 6;
var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
var create = specificCreate || arraySpeciesCreate;
return function ($this, callbackfn, that) {
var O = toObject($this);
var self = indexedObject(O);
var boundFunction = bindContext(callbackfn, that, 3);
var length = toLength(self.length);
var index = 0;
var target = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
var value, result;
for (;length > index; index++) if (NO_HOLES || index in self) {
value = self[index];
result = boundFunction(value, index, O);
if (TYPE) {
if (IS_MAP) target[index] = result; // map
else if (result) switch (TYPE) {
case 3: return true; // some
case 5: return value; // find
case 6: return index; // findIndex
case 2: target.push(value); // filter
} else if (IS_EVERY) return false; // every
}
}
return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
};
};
var SPECIES$1 = wellKnownSymbol('species');
var arrayMethodHasSpeciesSupport = function (METHOD_NAME) {
return !fails(function () {
var array = [];
var constructor = array.constructor = {};
constructor[SPECIES$1] = function () {
return { foo: 1 };
};
return array[METHOD_NAME](Boolean).foo !== 1;
});
};
var nativePropertyIsEnumerable = {}.propertyIsEnumerable;
var nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
// Nashorn ~ JDK8 bug
var NASHORN_BUG = nativeGetOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({ 1: 2 }, 1);
var f$1 = NASHORN_BUG ? function propertyIsEnumerable(V) {
var descriptor = nativeGetOwnPropertyDescriptor(this, V);
return !!descriptor && descriptor.enumerable;
} : nativePropertyIsEnumerable;
var objectPropertyIsEnumerable = {
f: f$1
};
// toObject with fallback for non-array-like ES3 strings
var toIndexedObject = function (it) {
return indexedObject(requireObjectCoercible(it));
};
var hasOwnProperty = {}.hasOwnProperty;
var has = function (it, key) {
return hasOwnProperty.call(it, key);
};
var nativeGetOwnPropertyDescriptor$1 = Object.getOwnPropertyDescriptor;
var f$2 = descriptors ? nativeGetOwnPropertyDescriptor$1 : function getOwnPropertyDescriptor(O, P) {
O = toIndexedObject(O);
P = toPrimitive(P, true);
if (ie8DomDefine) try {
return nativeGetOwnPropertyDescriptor$1(O, P);
} catch (error) { /* empty */ }
if (has(O, P)) return createPropertyDescriptor(!objectPropertyIsEnumerable.f.call(O, P), O[P]);
};
var objectGetOwnPropertyDescriptor = {
f: f$2
};
var functionToString = shared('native-function-to-string', Function.toString);
var WeakMap$1 = global$1.WeakMap;
var nativeWeakMap = typeof WeakMap$1 === 'function' && /native code/.test(functionToString.call(WeakMap$1));
var shared$1 = shared('keys');
var sharedKey = function (key) {
return shared$1[key] || (shared$1[key] = uid(key));
};
var hiddenKeys = {};
var WeakMap$2 = global$1.WeakMap;
var set, get, has$1;
var enforce = function (it) {
return has$1(it) ? get(it) : set(it, {});
};
var getterFor = function (TYPE) {
return function (it) {
var state;
if (!isObject(it) || (state = get(it)).type !== TYPE) {
throw TypeError('Incompatible receiver, ' + TYPE + ' required');
} return state;
};
};
if (nativeWeakMap) {
var store$1 = new WeakMap$2();
var wmget = store$1.get;
var wmhas = store$1.has;
var wmset = store$1.set;
set = function (it, metadata) {
wmset.call(store$1, it, metadata);
return metadata;
};
get = function (it) {
return wmget.call(store$1, it) || {};
};
has$1 = function (it) {
return wmhas.call(store$1, it);
};
} else {
var STATE = sharedKey('state');
hiddenKeys[STATE] = true;
set = function (it, metadata) {
hide(it, STATE, metadata);
return metadata;
};
get = function (it) {
return has(it, STATE) ? it[STATE] : {};
};
has$1 = function (it) {
return has(it, STATE);
};
}
var internalState = {
set: set,
get: get,
has: has$1,
enforce: enforce,
getterFor: getterFor
};
var redefine = createCommonjsModule(function (module) {
var getInternalState = internalState.get;
var enforceInternalState = internalState.enforce;
var TEMPLATE = String(functionToString).split('toString');
shared('inspectSource', function (it) {
return functionToString.call(it);
});
(module.exports = function (O, key, value, options) {
var unsafe = options ? !!options.unsafe : false;
var simple = options ? !!options.enumerable : false;
var noTargetGet = options ? !!options.noTargetGet : false;
if (typeof value == 'function') {
if (typeof key == 'string' && !has(value, 'name')) hide(value, 'name', key);
enforceInternalState(value).source = TEMPLATE.join(typeof key == 'string' ? key : '');
}
if (O === global$1) {
if (simple) O[key] = value;
else setGlobal(key, value);
return;
} else if (!unsafe) {
delete O[key];
} else if (!noTargetGet && O[key]) {
simple = true;
}
if (simple) O[key] = value;
else hide(O, key, value);
// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
})(Function.prototype, 'toString', function toString() {
return typeof this == 'function' && getInternalState(this).source || functionToString.call(this);
});
});
var max = Math.max;
var min$1 = Math.min;
// Helper for a popular repeating case of the spec:
// Let integer be ? ToInteger(index).
// If integer < 0, let result be max((length + integer), 0); else let result be min(length, length).
var toAbsoluteIndex = function (index, length) {
var integer = toInteger(index);
return integer < 0 ? max(integer + length, 0) : min$1(integer, length);
};
// `Array.prototype.{ indexOf, includes }` methods implementation
// false -> Array#indexOf
// https://tc39.github.io/ecma262/#sec-array.prototype.indexof
// true -> Array#includes
// https://tc39.github.io/ecma262/#sec-array.prototype.includes
var arrayIncludes = function (IS_INCLUDES) {
return function ($this, el, fromIndex) {
var O = toIndexedObject($this);
var length = toLength(O.length);
var index = toAbsoluteIndex(fromIndex, length);
var value;
// Array#includes uses SameValueZero equality algorithm
// eslint-disable-next-line no-self-compare
if (IS_INCLUDES && el != el) while (length > index) {
value = O[index++];
// eslint-disable-next-line no-self-compare
if (value != value) return true;
// Array#indexOf ignores holes, Array#includes - not
} else for (;length > index; index++) if (IS_INCLUDES || index in O) {
if (O[index] === el) return IS_INCLUDES || index || 0;
} return !IS_INCLUDES && -1;
};
};
var arrayIndexOf = arrayIncludes(false);
var objectKeysInternal = function (object, names) {
var O = toIndexedObject(object);
var i = 0;
var result = [];
var key;
for (key in O) !has(hiddenKeys, key) && has(O, key) && result.push(key);
// Don't enum bug & hidden keys
while (names.length > i) if (has(O, key = names[i++])) {
~arrayIndexOf(result, key) || result.push(key);
}
return result;
};
// IE8- don't enum bug keys
var enumBugKeys = [
'constructor',
'hasOwnProperty',
'isPrototypeOf',
'propertyIsEnumerable',
'toLocaleString',
'toString',
'valueOf'
];
// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
var hiddenKeys$1 = enumBugKeys.concat('length', 'prototype');
var f$3 = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
return objectKeysInternal(O, hiddenKeys$1);
};
var objectGetOwnPropertyNames = {
f: f$3
};
var f$4 = Object.getOwnPropertySymbols;
var objectGetOwnPropertySymbols = {
f: f$4
};
var Reflect = global$1.Reflect;
// all object keys, includes non-enumerable and symbols
var ownKeys = Reflect && Reflect.ownKeys || function ownKeys(it) {
var keys = objectGetOwnPropertyNames.f(anObject(it));
var getOwnPropertySymbols = objectGetOwnPropertySymbols.f;
return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;
};
var copyConstructorProperties = function (target, source) {
var keys = ownKeys(source);
var defineProperty = objectDefineProperty.f;
var getOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
if (!has(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));
}
};
var replacement = /#|\.prototype\./;
var isForced = function (feature, detection) {
var value = data[normalize(feature)];
return value == POLYFILL ? true
: value == NATIVE ? false
: typeof detection == 'function' ? fails(detection)
: !!detection;
};
var normalize = isForced.normalize = function (string) {
return String(string).replace(replacement, '.').toLowerCase();
};
var data = isForced.data = {};
var NATIVE = isForced.NATIVE = 'N';
var POLYFILL = isForced.POLYFILL = 'P';
var isForced_1 = isForced;
var getOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
/*
options.target - name of the target object
options.global - target is the global object
options.stat - export as static methods of target
options.proto - export as prototype methods of target
options.real - real prototype method for the `pure` version
options.forced - export even if the native feature is available
options.bind - bind methods to the target, required for the `pure` version
options.wrap - wrap constructors to preventing global pollution, required for the `pure` version
options.unsafe - use the simple assignment of property instead of delete + defineProperty
options.sham - add a flag to not completely full polyfills
options.enumerable - export as enumerable property
options.noTargetGet - prevent calling a getter on target
*/
var _export = function (options, source) {
var TARGET = options.target;
var GLOBAL = options.global;
var STATIC = options.stat;
var FORCED, target, key, targetProperty, sourceProperty, descriptor;
if (GLOBAL) {
target = global$1;
} else if (STATIC) {
target = global$1[TARGET] || setGlobal(TARGET, {});
} else {
target = (global$1[TARGET] || {}).prototype;
}
if (target) for (key in source) {
sourceProperty = source[key];
if (options.noTargetGet) {
descriptor = getOwnPropertyDescriptor(target, key);
targetProperty = descriptor && descriptor.value;
} else targetProperty = target[key];
FORCED = isForced_1(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
// contained in target
if (!FORCED && targetProperty !== undefined) {
if (typeof sourceProperty === typeof targetProperty) continue;
copyConstructorProperties(sourceProperty, targetProperty);
}
// add a flag to not completely full polyfills
if (options.sham || (targetProperty && targetProperty.sham)) {
hide(sourceProperty, 'sham', true);
}
// extend global
redefine(target, key, sourceProperty, options);
}
};
var internalFilter = arrayMethods(2);
var SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter');
// `Array.prototype.filter` method
// https://tc39.github.io/ecma262/#sec-array.prototype.filter
// with adding support of @@species
_export({ target: 'Array', proto: true, forced: !SPECIES_SUPPORT }, {
filter: function filter(callbackfn /* , thisArg */) {
return internalFilter(this, callbackfn, arguments[1]);
}
});
var sloppyArrayMethod = function (METHOD_NAME, argument) {
var method = [][METHOD_NAME];
return !method || !fails(function () {
// eslint-disable-next-line no-useless-call,no-throw-literal
method.call(null, argument || function () { throw 1; }, 1);
});
};
var nativeForEach = [].forEach;
var internalForEach = arrayMethods(0);
var SLOPPY_METHOD = sloppyArrayMethod('forEach');
// `Array.prototype.forEach` method implementation
// https://tc39.github.io/ecma262/#sec-array.prototype.foreach
var arrayForEach = SLOPPY_METHOD ? function forEach(callbackfn /* , thisArg */) {
return internalForEach(this, callbackfn, arguments[1]);
} : nativeForEach;
// `Array.prototype.forEach` method
// https://tc39.github.io/ecma262/#sec-array.prototype.foreach
_export({ target: 'Array', proto: true, forced: [].forEach != arrayForEach }, { forEach: arrayForEach });
// `Array.prototype.{ reduce, reduceRight }` methods implementation
// https://tc39.github.io/ecma262/#sec-array.prototype.reduce
// https://tc39.github.io/ecma262/#sec-array.prototype.reduceright
var arrayReduce = function (that, callbackfn, argumentsLength, memo, isRight) {
aFunction(callbackfn);
var O = toObject(that);
var self = indexedObject(O);
var length = toLength(O.length);
var index = isRight ? length - 1 : 0;
var i = isRight ? -1 : 1;
if (argumentsLength < 2) while (true) {
if (index in self) {
memo = self[index];
index += i;
break;
}
index += i;
if (isRight ? index < 0 : length <= index) {
throw TypeError('Reduce of empty array with no initial value');
}
}
for (;isRight ? index >= 0 : length > index; index += i) if (index in self) {
memo = callbackfn(memo, self[index], index, O);
}
return memo;
};
var SLOPPY_METHOD$1 = sloppyArrayMethod('reduce');
// `Array.prototype.reduce` method
// https://tc39.github.io/ecma262/#sec-array.prototype.reduce
_export({ target: 'Array', proto: true, forced: SLOPPY_METHOD$1 }, {
reduce: function reduce(callbackfn /* , initialValue */) {
return arrayReduce(this, callbackfn, arguments.length, arguments[1], false);
}
});
var defineProperty = objectDefineProperty.f;
var FunctionPrototype = Function.prototype;
var FunctionPrototypeToString = FunctionPrototype.toString;
var nameRE = /^\s*function ([^ (]*)/;
var NAME = 'name';
// Function instances `.name` property
// https://tc39.github.io/ecma262/#sec-function-instances-name
if (descriptors && !(NAME in FunctionPrototype)) {
defineProperty(FunctionPrototype, NAME, {
configurable: true,
get: function () {
try {
return FunctionPrototypeToString.call(this).match(nameRE)[1];
} catch (error) {
return '';
}
}
});
}
// 19.1.2.14 / 15.2.3.14 Object.keys(O)
var objectKeys = Object.keys || function keys(O) {
return objectKeysInternal(O, enumBugKeys);
};
// 19.1.2.1 Object.assign(target, source, ...)
var nativeAssign = Object.assign;
// should work with symbols and should have deterministic property order (V8 bug)
var objectAssign = !nativeAssign || fails(function () {
var A = {};
var B = {};
// eslint-disable-next-line no-undef
var symbol = Symbol();
var alphabet = 'abcdefghijklmnopqrst';
A[symbol] = 7;
alphabet.split('').forEach(function (chr) { B[chr] = chr; });
return nativeAssign({}, A)[symbol] != 7 || objectKeys(nativeAssign({}, B)).join('') != alphabet;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
var T = toObject(target);
var argumentsLength = arguments.length;
var index = 1;
var getOwnPropertySymbols = objectGetOwnPropertySymbols.f;
var propertyIsEnumerable = objectPropertyIsEnumerable.f;
while (argumentsLength > index) {
var S = indexedObject(arguments[index++]);
var keys = getOwnPropertySymbols ? objectKeys(S).concat(getOwnPropertySymbols(S)) : objectKeys(S);
var length = keys.length;
var j = 0;
var key;
while (length > j) if (propertyIsEnumerable.call(S, key = keys[j++])) T[key] = S[key];
} return T;
} : nativeAssign;
// `Object.assign` method
// https://tc39.github.io/ecma262/#sec-object.assign
_export({ target: 'Object', stat: true, forced: Object.assign !== objectAssign }, { assign: objectAssign });
// a string of all valid unicode whitespaces
// eslint-disable-next-line max-len
var whitespaces = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
var whitespace = '[' + whitespaces + ']';
var ltrim = RegExp('^' + whitespace + whitespace + '*');
var rtrim = RegExp(whitespace + whitespace + '*$');
// 1 -> String#trimStart
// 2 -> String#trimEnd
// 3 -> String#trim
var stringTrim = function (string, TYPE) {
string = String(requireObjectCoercible(string));
if (TYPE & 1) string = string.replace(ltrim, '');
if (TYPE & 2) string = string.replace(rtrim, '');
return string;
};
var nativeParseInt = global$1.parseInt;
var hex = /^[-+]?0[xX]/;
var FORCED = nativeParseInt(whitespaces + '08') !== 8 || nativeParseInt(whitespaces + '0x16') !== 22;
var _parseInt = FORCED ? function parseInt(str, radix) {
var string = stringTrim(String(str), 3);
return nativeParseInt(string, (radix >>> 0) || (hex.test(string) ? 16 : 10));
} : nativeParseInt;
// `parseInt` method
// https://tc39.github.io/ecma262/#sec-parseint-string-radix
_export({ global: true, forced: parseInt != _parseInt }, {
parseInt: _parseInt
});
// `RegExp.prototype.flags` getter implementation
// https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags
var regexpFlags = function () {
var that = anObject(this);
var result = '';
if (that.global) result += 'g';
if (that.ignoreCase) result += 'i';
if (that.multiline) result += 'm';
if (that.unicode) result += 'u';
if (that.sticky) result += 'y';
return result;
};
var nativeExec = RegExp.prototype.exec;
// This always refers to the native implementation, because the
// String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
// which loads this file before patching the method.
var nativeReplace = String.prototype.replace;
var patchedExec = nativeExec;
var UPDATES_LAST_INDEX_WRONG = (function () {
var re1 = /a/;
var re2 = /b*/g;
nativeExec.call(re1, 'a');
nativeExec.call(re2, 'a');
return re1.lastIndex !== 0 || re2.lastIndex !== 0;
})();
// nonparticipating capturing group, copied from es5-shim's String#split patch.
var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;
var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED;
if (PATCH) {
patchedExec = function exec(str) {
var re = this;
var lastIndex, reCopy, match, i;
if (NPCG_INCLUDED) {
reCopy = new RegExp('^' + re.source + '$(?!\\s)', regexpFlags.call(re));
}
if (UPDATES_LAST_INDEX_WRONG) lastIndex = re.lastIndex;
match = nativeExec.call(re, str);
if (UPDATES_LAST_INDEX_WRONG && match) {
re.lastIndex = re.global ? match.index + match[0].length : lastIndex;
}
if (NPCG_INCLUDED && match && match.length > 1) {
// Fix browsers whose `exec` methods don't consistently return `undefined`
// for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
nativeReplace.call(match[0], reCopy, function () {
for (i = 1; i < arguments.length - 2; i++) {
if (arguments[i] === undefined) match[i] = undefined;
}
});
}
return match;
};
}
var regexpExec = patchedExec;
_export({ target: 'RegExp', proto: true, forced: /./.exec !== regexpExec }, {
exec: regexpExec
});
// CONVERT_TO_STRING: true -> String#at
// CONVERT_TO_STRING: false -> String#codePointAt
var stringAt = function (that, pos, CONVERT_TO_STRING) {
var S = String(requireObjectCoercible(that));
var position = toInteger(pos);
var size = S.length;
var first, second;
if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;
first = S.charCodeAt(position);
return first < 0xD800 || first > 0xDBFF || position + 1 === size
|| (second = S.charCodeAt(position + 1)) < 0xDC00 || second > 0xDFFF
? CONVERT_TO_STRING ? S.charAt(position) : first
: CONVERT_TO_STRING ? S.slice(position, position + 2) : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;
};
// `AdvanceStringIndex` abstract operation
// https://tc39.github.io/ecma262/#sec-advancestringindex
var advanceStringIndex = function (S, index, unicode) {
return index + (unicode ? stringAt(S, index, true).length : 1);
};
// `RegExpExec` abstract operation
// https://tc39.github.io/ecma262/#sec-regexpexec
var regexpExecAbstract = function (R, S) {
var exec = R.exec;
if (typeof exec === 'function') {
var result = exec.call(R, S);
if (typeof result !== 'object') {
throw TypeError('RegExp exec method returned something other than an Object or null');
}
return result;
}
if (classofRaw(R) !== 'RegExp') {
throw TypeError('RegExp#exec called on incompatible receiver');
}
return regexpExec.call(R, S);
};
var SPECIES$2 = wellKnownSymbol('species');
var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
// #replace needs built-in support for named groups.
// #match works fine because it just return the exec results, even if it has
// a "grops" property.
var re = /./;
re.exec = function () {
var result = [];
result.groups = { a: '7' };
return result;
};
return ''.replace(re, '$<a>') !== '7';
});
// Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
// Weex JS has frozen built-in prototypes, so use try / catch wrapper
var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = !fails(function () {
var re = /(?:)/;
var originalExec = re.exec;
re.exec = function () { return originalExec.apply(this, arguments); };
var result = 'ab'.split(re);
return result.length !== 2 || result[0] !== 'a' || result[1] !== 'b';
});
var fixRegexpWellKnownSymbolLogic = function (KEY, length, exec, sham) {
var SYMBOL = wellKnownSymbol(KEY);
var DELEGATES_TO_SYMBOL = !fails(function () {
// String methods call symbol-named RegEp methods
var O = {};
O[SYMBOL] = function () { return 7; };
return ''[KEY](O) != 7;
});
var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL && !fails(function () {
// Symbol-named RegExp methods call .exec
var execCalled = false;
var re = /a/;
re.exec = function () { execCalled = true; return null; };
if (KEY === 'split') {
// RegExp[@@split] doesn't call the regex's exec method, but first creates
// a new one. We need to return the patched regex when creating the new one.
re.constructor = {};
re.constructor[SPECIES$2] = function () { return re; };
}
re[SYMBOL]('');
return !execCalled;
});
if (
!DELEGATES_TO_SYMBOL ||
!DELEGATES_TO_EXEC ||
(KEY === 'replace' && !REPLACE_SUPPORTS_NAMED_GROUPS) ||
(KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)
) {
var nativeRegExpMethod = /./[SYMBOL];
var methods = exec(SYMBOL, ''[KEY], function (nativeMethod, regexp, str, arg2, forceStringMethod) {
if (regexp.exec === regexpExec) {
if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
// The native String method already delegates to @@method (this
// polyfilled function), leasing to infinite recursion.
// We avoid it by directly calling the native @@method method.
return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
}
return { done: true, value: nativeMethod.call(str, regexp, arg2) };
}
return { done: false };
});
var stringMethod = methods[0];
var regexMethod = methods[1];
redefine(String.prototype, KEY, stringMethod);
redefine(RegExp.prototype, SYMBOL, length == 2
// 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
// 21.2.5.11 RegExp.prototype[@@split](string, limit)
? function (string, arg) { return regexMethod.call(string, this, arg); }
// 21.2.5.6 RegExp.prototype[@@match](string)
// 21.2.5.9 RegExp.prototype[@@search](string)
: function (string) { return regexMethod.call(string, this); }
);
if (sham) hide(RegExp.prototype[SYMBOL], 'sham', true);
}
};
// @@match logic
fixRegexpWellKnownSymbolLogic(
'match',
1,
function (MATCH, nativeMatch, maybeCallNative) {
return [
// `String.prototype.match` method
// https://tc39.github.io/ecma262/#sec-string.prototype.match
function match(regexp) {
var O = requireObjectCoercible(this);
var matcher = regexp == undefined ? undefined : regexp[MATCH];
return matcher !== undefined ? matcher.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
},
// `RegExp.prototype[@@match]` method
// https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match
function (regexp) {
var res = maybeCallNative(nativeMatch, regexp, this);
if (res.done) return res.value;
var rx = anObject(regexp);
var S = String(this);
if (!rx.global) return regexpExecAbstract(rx, S);
var fullUnicode = rx.unicode;
rx.lastIndex = 0;
var A = [];
var n = 0;
var result;
while ((result = regexpExecAbstract(rx, S)) !== null) {
var matchStr = String(result[0]);
A[n] = matchStr;
if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
n++;
}
return n === 0 ? null : A;
}
];
}
);
var max$1 = Math.max;
var min$2 = Math.min;
var floor$1 = Math.floor;
var SUBSTITUTION_SYMBOLS = /\$([$&`']|\d\d?|<[^>]*>)/g;
var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&`']|\d\d?)/g;
var maybeToString = function (it) {
return it === undefined ? it : String(it);
};
// @@replace logic
fixRegexpWellKnownSymbolLogic(
'replace',
2,
function (REPLACE, nativeReplace, maybeCallNative) {
return [
// `String.prototype.replace` method
// https://tc39.github.io/ecma262/#sec-string.prototype.replace
function replace(searchValue, replaceValue) {
var O = requireObjectCoercible(this);
var replacer = searchValue == undefined ? undefined : searchValue[REPLACE];
return replacer !== undefined
? replacer.call(searchValue, O, replaceValue)
: nativeReplace.call(String(O), searchValue, replaceValue);
},
// `RegExp.prototype[@@replace]` method
// https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace
function (regexp, replaceValue) {
var res = maybeCallNative(nativeReplace, regexp, this, replaceValue);
if (res.done) return res.value;
var rx = anObject(regexp);
var S = String(this);
var functionalReplace = typeof replaceValue === 'function';
if (!functionalReplace) replaceValue = String(replaceValue);
var global = rx.global;
if (global) {
var fullUnicode = rx.unicode;
rx.lastIndex = 0;
}
var results = [];
while (true) {
var result = regexpExecAbstract(rx, S);
if (result === null) break;
results.push(result);
if (!global) break;
var matchStr = String(result[0]);
if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
}
var accumulatedResult = '';
var nextSourcePosition = 0;
for (var i = 0; i < results.length; i++) {
result = results[i];
var matched = String(result[0]);
var position = max$1(min$2(toInteger(result.index), S.length), 0);
var captures = [];
// NOTE: This is equivalent to
// captures = result.slice(1).map(maybeToString)
// but for some reason `nativeSlice.call(result, 1, result.length)` (called in
// the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
// causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
var namedCaptures = result.groups;
if (functionalReplace) {
var replacerArgs = [matched].concat(captures, position, S);
if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
var replacement = String(replaceValue.apply(undefined, replacerArgs));
} else {
replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
}
if (position >= nextSourcePosition) {
accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
nextSourcePosition = position + matched.length;
}
}
return accumulatedResult + S.slice(nextSourcePosition);
}
];
// https://tc39.github.io/ecma262/#sec-getsubstitution
function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {
var tailPos = position + matched.length;
var m = captures.length;
var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
if (namedCaptures !== undefined) {
namedCaptures = toObject(namedCaptures);
symbols = SUBSTITUTION_SYMBOLS;
}
return nativeReplace.call(replacement, symbols, function (match, ch) {
var capture;
switch (ch.charAt(0)) {
case '$': return '$';
case '&': return matched;
case '`': return str.slice(0, position);
case "'": return str.slice(tailPos);
case '<':
capture = namedCaptures[ch.slice(1, -1)];
break;
default: // \d\d?
var n = +ch;
if (n === 0) return match;
if (n > m) {
var f = floor$1(n / 10);
if (f === 0) return match;
if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
return match;
}
capture = captures[n - 1];
}
return capture === undefined ? '' : capture;
});
}
}
);
// iterable DOM collections
// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
var domIterables = {
CSSRuleList: 0,
CSSStyleDeclaration: 0,
CSSValueList: 0,
ClientRectList: 0,
DOMRectList: 0,
DOMStringList: 0,
DOMTokenList: 1,
DataTransferItemList: 0,
FileList: 0,
HTMLAllCollection: 0,
HTMLCollection: 0,
HTMLFormElement: 0,
HTMLSelectElement: 0,
MediaList: 0,
MimeTypeArray: 0,
NamedNodeMap: 0,
NodeList: 1,
PaintRequestList: 0,
Plugin: 0,
PluginArray: 0,
SVGLengthList: 0,
SVGNumberList: 0,
SVGPathSegList: 0,
SVGPointList: 0,
SVGStringList: 0,
SVGTransformList: 0,
SourceBufferList: 0,
StyleSheetList: 0,
TextTrackCueList: 0,
TextTrackList: 0,
TouchList: 0
};
for (var COLLECTION_NAME in domIterables) {
var Collection = global$1[COLLECTION_NAME];
var CollectionPrototype = Collection && Collection.prototype;
// some Chrome versions have non-configurable methods on DOMTokenList
if (CollectionPrototype && CollectionPrototype.forEach !== arrayForEach) try {
hide(CollectionPrototype, 'forEach', arrayForEach);
} catch (error) {
CollectionPrototype.forEach = arrayForEach;
}
}
/**
* lodash (Custom Build) <https://lodash.com/>
* Build: `lodash modularize exports="npm" -o ./`
* Copyright jQuery Foundation and other contributors <https://jquery.org/>
* Released under MIT license <https://lodash.com/license>
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
*/
/** Used as the `TypeError` message for "Functions" methods. */
var FUNC_ERROR_TEXT = 'Expected a function';
/** Used as references for various `Number` constants. */
var NAN = 0 / 0;
/** `Object#toString` result references. */
var symbolTag = '[object Symbol]';
/** Used to match leading and trailing whitespace. */
var reTrim = /^\s+|\s+$/g;
/** Used to detect bad signed hexadecimal string values. */
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
/** Used to detect binary string values. */
var reIsBinary = /^0b[01]+$/i;
/** Used to detect octal string values. */
var reIsOctal = /^0o[0-7]+$/i;
/** Built-in method references without a dependency on `root`. */
var freeParseInt = parseInt;
/** Detect free variable `global` from Node.js. */
var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal;
/** Detect free variable `self`. */
var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
/** Used as a reference to the global object. */
var root = freeGlobal || freeSelf || Function('return this')();
/** Used for built-in method references. */
var objectProto = Object.prototype;
/**
* Used to resolve the
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
* of values.
*/
var objectToString = objectProto.toString;
/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMax = Math.max,
nativeMin = Math.min;
/**
* Gets the timestamp of the number of milliseconds that have elapsed since
* the Unix epoch (1 January 1970 00:00:00 UTC).
*
* @static
* @memberOf _
* @since 2.4.0
* @category Date
* @returns {number} Returns the timestamp.
* @example
*
* _.defer(function(stamp) {
* console.log(_.now() - stamp);
* }, _.now());
* // => Logs the number of milliseconds it took for the deferred invocation.
*/
var now = function() {
return root.Date.now();
};
/**
* Creates a debounced function that delays invoking `func` until after `wait`
* milliseconds have elapsed since the last time the debounced function was
* invoked. The debounced function comes with a `cancel` method to cancel
* delayed `func` invocations and a `flush` method to immediately invoke them.
* Provide `options` to indicate whether `func` should be invoked on the
* leading and/or trailing edge of the `wait` timeout. The `func` is invoked
* with the last arguments provided to the debounced function. Subsequent
* calls to the debounced function return the result of the last `func`
* invocation.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is
* invoked on the trailing edge of the timeout only if the debounced function
* is invoked more than once during the `wait` timeout.
*
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
* until to the next tick, similar to `setTimeout` with a timeout of `0`.
*
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
* for details over the differences between `_.debounce` and `_.throttle`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to debounce.
* @param {number} [wait=0] The number of milliseconds to delay.
* @param {Object} [options={}] The options object.
* @param {boolean} [options.leading=false]
* Specify invoking on the leading edge of the timeout.
* @param {number} [options.maxWait]
* The maximum time `func` is allowed to be delayed before it's invoked.
* @param {boolean} [options.trailing=true]
* Specify invoking on the trailing edge of the timeout.
* @returns {Function} Returns the new debounced function.
* @example
*
* // Avoid costly calculations while the window size is in flux.
* jQuery(window).on('resize', _.debounce(calculateLayout, 150));
*
* // Invoke `sendMail` when clicked, debouncing subsequent calls.
* jQuery(element).on('click', _.debounce(sendMail, 300, {
* 'leading': true,
* 'trailing': false
* }));
*
* // Ensure `batchLog` is invoked once after 1 second of debounced calls.
* var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
* var source = new EventSource('/stream');
* jQuery(source).on('message', debounced);
*
* // Cancel the trailing debounced invocation.
* jQuery(window).on('popstate', debounced.cancel);
*/
function debounce(func, wait, options) {
var lastArgs,
lastThis,
maxWait,
result,
timerId,
lastCallTime,
lastInvokeTime = 0,
leading = false,
maxing = false,
trailing = true;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
wait = toNumber(wait) || 0;
if (isObject$1(options)) {
leading = !!options.leading;
maxing = 'maxWait' in options;
maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}
function invokeFunc(time) {
var args = lastArgs,
thisArg = lastThis;
lastArgs = lastThis = undefined;
lastInvokeTime = time;
result = func.apply(thisArg, args);
return result;
}
function leadingEdge(time) {
// Reset any `maxWait` timer.
lastInvokeTime = time;
// Start the timer for the trailing edge.
timerId = setTimeout(timerExpired, wait);
// Invoke the leading edge.
return leading ? invokeFunc(time) : result;
}
function remainingWait(time) {
var timeSinceLastCall = time - lastCallTime,
timeSinceLastInvoke = time - lastInvokeTime,
result = wait - timeSinceLastCall;
return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
}
function shouldInvoke(time) {
var timeSinceLastCall = time - lastCallTime,
timeSinceLastInvoke = time - lastInvokeTime;
// Either this is the first call, activity has stopped and we're at the
// trailing edge, the system time has gone backwards and we're treating
// it as the trailing edge, or we've hit the `maxWait` limit.
return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
(timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
}
function timerExpired() {
var time = now();
if (shouldInvoke(time)) {
return trailingEdge(time);
}
// Restart the timer.
timerId = setTimeout(timerExpired, remainingWait(time));
}
function trailingEdge(time) {
timerId = undefined;
// Only invoke if we have `lastArgs` which means `func` has been
// debounced at least once.
if (trailing && lastArgs) {
return invokeFunc(time);
}
lastArgs = lastThis = undefined;
return result;
}
function cancel() {
if (timerId !== undefined) {
clearTimeout(timerId);
}
lastInvokeTime = 0;
lastArgs = lastCallTime = lastThis = timerId = undefined;
}
function flush() {
return timerId === undefined ? result : trailingEdge(now());
}
function debounced() {
var time = now(),
isInvoking = shouldInvoke(time);
lastArgs = arguments;
lastThis = this;
lastCallTime = time;
if (isInvoking) {
if (timerId === undefined) {
return leadingEdge(lastCallTime);
}
if (maxing) {
// Handle invocations in a tight loop.
timerId = setTimeout(timerExpired, wait);
return invokeFunc(lastCallTime);
}
}
if (timerId === undefined) {
timerId = setTimeout(timerExpired, wait);
}
return result;
}
debounced.cancel = cancel;
debounced.flush = flush;
return debounced;
}
/**
* Creates a throttled function that only invokes `func` at most once per
* every `wait` milliseconds. The throttled function comes with a `cancel`
* method to cancel delayed `func` invocations and a `flush` method to
* immediately invoke them. Provide `options` to indicate whether `func`
* should be invoked on the leading and/or trailing edge of the `wait`
* timeout. The `func` is invoked with the last arguments provided to the
* throttled function. Subsequent calls to the throttled function return the
* result of the last `func` invocation.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is
* invoked on the trailing edge of the timeout only if the throttled function
* is invoked more than once during the `wait` timeout.
*
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
* until to the next tick, similar to `setTimeout` with a timeout of `0`.
*
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
* for details over the differences between `_.throttle` and `_.debounce`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to throttle.
* @param {number} [wait=0] The number of milliseconds to throttle invocations to.
* @param {Object} [options={}] The options object.
* @param {boolean} [options.leading=true]
* Specify invoking on the leading edge of the timeout.
* @param {boolean} [options.trailing=true]
* Specify invoking on the trailing edge of the timeout.
* @returns {Function} Returns the new throttled function.
* @example
*
* // Avoid excessively updating the position while scrolling.
* jQuery(window).on('scroll', _.throttle(updatePosition, 100));
*
* // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
* var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
* jQuery(element).on('click', throttled);
*
* // Cancel the trailing throttled invocation.
* jQuery(window).on('popstate', throttled.cancel);
*/
function throttle(func, wait, options) {
var leading = true,
trailing = true;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
if (isObject$1(options)) {
leading = 'leading' in options ? !!options.leading : leading;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}
return debounce(func, wait, {
'leading': leading,
'maxWait': wait,
'trailing': trailing
});
}
/**
* Checks if `value` is the
* [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(_.noop);
* // => true
*
* _.isObject(null);
* // => false
*/
function isObject$1(value) {
var type = typeof value;
return !!value && (type == 'object' || type == 'function');
}
/**
* Checks if `value` is object-like. A value is object-like if it's not `null`
* and has a `typeof` result of "object".
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
* @example
*
* _.isObjectLike({});
* // => true
*
* _.isObjectLike([1, 2, 3]);
* // => true
*
* _.isObjectLike(_.noop);
* // => false
*
* _.isObjectLike(null);
* // => false
*/
function isObjectLike(value) {
return !!value && typeof value == 'object';
}
/**
* Checks if `value` is classified as a `Symbol` primitive or object.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
* @example
*
* _.isSymbol(Symbol.iterator);
* // => true
*
* _.isSymbol('abc');
* // => false
*/
function isSymbol(value) {
return typeof value == 'symbol' ||
(isObjectLike(value) && objectToString.call(value) == symbolTag);
}
/**
* Converts `value` to a number.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to process.
* @returns {number} Returns the number.
* @example
*
* _.toNumber(3.2);
* // => 3.2
*
* _.toNumber(Number.MIN_VALUE);
* // => 5e-324
*
* _.toNumber(Infinity);
* // => Infinity
*
* _.toNumber('3.2');
* // => 3.2
*/
function toNumber(value) {
if (typeof value == 'number') {
return value;
}
if (isSymbol(value)) {
return NAN;
}
if (isObject$1(value)) {
var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
value = isObject$1(other) ? (other + '') : other;
}
if (typeof value != 'string') {
return value === 0 ? value : +value;
}
value = value.replace(reTrim, '');
var isBinary = reIsBinary.test(value);
return (isBinary || reIsOctal.test(value))
? freeParseInt(value.slice(2), isBinary ? 2 : 8)
: (reIsBadHex.test(value) ? NAN : +value);
}
var lodash_throttle = throttle;
/**
* lodash (Custom Build) <https://lodash.com/>
* Build: `lodash modularize exports="npm" -o ./`
* Copyright jQuery Foundation and other contributors <https://jquery.org/>
* Released under MIT license <https://lodash.com/license>
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
*/
/** Used as the `TypeError` message for "Functions" methods. */
var FUNC_ERROR_TEXT$1 = 'Expected a function';
/** Used as references for various `Number` constants. */
var NAN$1 = 0 / 0;
/** `Object#toString` result references. */
var symbolTag$1 = '[object Symbol]';
/** Used to match leading and trailing whitespace. */
var reTrim$1 = /^\s+|\s+$/g;
/** Used to detect bad signed hexadecimal string values. */
var reIsBadHex$1 = /^[-+]0x[0-9a-f]+$/i;
/** Used to detect binary string values. */
var reIsBinary$1 = /^0b[01]+$/i;
/** Used to detect octal string values. */
var reIsOctal$1 = /^0o[0-7]+$/i;
/** Built-in method references without a dependency on `root`. */
var freeParseInt$1 = parseInt;
/** Detect free variable `global` from Node.js. */
var freeGlobal$1 = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal;
/** Detect free variable `self`. */
var freeSelf$1 = typeof self == 'object' && self && self.Object === Object && self;
/** Used as a reference to the global object. */
var root$1 = freeGlobal$1 || freeSelf$1 || Function('return this')();
/** Used for built-in method references. */
var objectProto$1 = Object.prototype;
/**
* Used to resolve the
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
* of values.
*/
var objectToString$1 = objectProto$1.toString;
/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMax$1 = Math.max,
nativeMin$1 = Math.min;
/**
* Gets the timestamp of the number of milliseconds that have elapsed since
* the Unix epoch (1 January 1970 00:00:00 UTC).
*
* @static
* @memberOf _
* @since 2.4.0
* @category Date
* @returns {number} Returns the timestamp.
* @example
*
* _.defer(function(stamp) {
* console.log(_.now() - stamp);
* }, _.now());
* // => Logs the number of milliseconds it took for the deferred invocation.
*/
var now$1 = function() {
return root$1.Date.now();
};
/**
* Creates a debounced function that delays invoking `func` until after `wait`
* milliseconds have elapsed since the last time the debounced function was
* invoked. The debounced function comes with a `cancel` method to cancel
* delayed `func` invocations and a `flush` method to immediately invoke them.
* Provide `options` to indicate whether `func` should be invoked on the
* leading and/or trailing edge of the `wait` timeout. The `func` is invoked
* with the last arguments provided to the debounced function. Subsequent
* calls to the debounced function return the result of the last `func`
* invocation.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is
* invoked on the trailing edge of the timeout only if the debounced function
* is invoked more than once during the `wait` timeout.
*
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
* until to the next tick, similar to `setTimeout` with a timeout of `0`.
*
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
* for details over the differences between `_.debounce` and `_.throttle`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to debounce.
* @param {number} [wait=0] The number of milliseconds to delay.
* @param {Object} [options={}] The options object.
* @param {boolean} [options.leading=false]
* Specify invoking on the leading edge of the timeout.
* @param {number} [options.maxWait]
* The maximum time `func` is allowed to be delayed before it's invoked.
* @param {boolean} [options.trailing=true]
* Specify invoking on the trailing edge of the timeout.
* @returns {Function} Returns the new debounced function.
* @example
*
* // Avoid costly calculations while the window size is in flux.
* jQuery(window).on('resize', _.debounce(calculateLayout, 150));
*
* // Invoke `sendMail` when clicked, debouncing subsequent calls.
* jQuery(element).on('click', _.debounce(sendMail, 300, {
* 'leading': true,
* 'trailing': false
* }));
*
* // Ensure `batchLog` is invoked once after 1 second of debounced calls.
* var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
* var source = new EventSource('/stream');
* jQuery(source).on('message', debounced);
*
* // Cancel the trailing debounced invocation.
* jQuery(window).on('popstate', debounced.cancel);
*/
function debounce$1(func, wait, options) {
var lastArgs,
lastThis,
maxWait,
result,
timerId,
lastCallTime,
lastInvokeTime = 0,
leading = false,
maxing = false,
trailing = true;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT$1);
}
wait = toNumber$1(wait) || 0;
if (isObject$2(options)) {
leading = !!options.leading;
maxing = 'maxWait' in options;
maxWait = maxing ? nativeMax$1(toNumber$1(options.maxWait) || 0, wait) : maxWait;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}
function invokeFunc(time) {
var args = lastArgs,
thisArg = lastThis;
lastArgs = lastThis = undefined;
lastInvokeTime = time;
result = func.apply(thisArg, args);
return result;
}
function leadingEdge(time) {
// Reset any `maxWait` timer.
lastInvokeTime = time;
// Start the timer for the trailing edge.
timerId = setTimeout(timerExpired, wait);
// Invoke the leading edge.
return leading ? invokeFunc(time) : result;
}
function remainingWait(time) {
var timeSinceLastCall = time - lastCallTime,
timeSinceLastInvoke = time - lastInvokeTime,
result = wait - timeSinceLastCall;
return maxing ? nativeMin$1(result, maxWait - timeSinceLastInvoke) : result;
}
function shouldInvoke(time) {
var timeSinceLastCall = time - lastCallTime,
timeSinceLastInvoke = time - lastInvokeTime;
// Either this is the first call, activity has stopped and we're at the
// trailing edge, the system time has gone backwards and we're treating
// it as the trailing edge, or we've hit the `maxWait` limit.
return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
(timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
}
function timerExpired() {
var time = now$1();
if (shouldInvoke(time)) {
return trailingEdge(time);
}
// Restart the timer.
timerId = setTimeout(timerExpired, remainingWait(time));
}
function trailingEdge(time) {
timerId = undefined;
// Only invoke if we have `lastArgs` which means `func` has been
// debounced at least once.
if (trailing && lastArgs) {
return invokeFunc(time);
}
lastArgs = lastThis = undefined;
return result;
}
function cancel() {
if (timerId !== undefined) {
clearTimeout(timerId);
}
lastInvokeTime = 0;
lastArgs = lastCallTime = lastThis = timerId = undefined;
}
function flush() {
return timerId === undefined ? result : trailingEdge(now$1());
}
function debounced() {
var time = now$1(),
isInvoking = shouldInvoke(time);
lastArgs = arguments;
lastThis = this;
lastCallTime = time;
if (isInvoking) {
if (timerId === undefined) {
return leadingEdge(lastCallTime);
}
if (maxing) {
// Handle invocations in a tight loop.
timerId = setTimeout(timerExpired, wait);
return invokeFunc(lastCallTime);
}
}
if (timerId === undefined) {
timerId = setTimeout(timerExpired, wait);
}
return result;
}
debounced.cancel = cancel;
debounced.flush = flush;
return debounced;
}
/**
* Checks if `value` is the
* [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(_.noop);
* // => true
*
* _.isObject(null);
* // => false
*/
function isObject$2(value) {
var type = typeof value;
return !!value && (type == 'object' || type == 'function');
}
/**
* Checks if `value` is object-like. A value is object-like if it's not `null`
* and has a `typeof` result of "object".
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
* @example
*
* _.isObjectLike({});
* // => true
*
* _.isObjectLike([1, 2, 3]);
* // => true
*
* _.isObjectLike(_.noop);
* // => false
*
* _.isObjectLike(null);
* // => false
*/
function isObjectLike$1(value) {
return !!value && typeof value == 'object';
}
/**
* Checks if `value` is classified as a `Symbol` primitive or object.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
* @example
*
* _.isSymbol(Symbol.iterator);
* // => true
*
* _.isSymbol('abc');
* // => false
*/
function isSymbol$1(value) {
return typeof value == 'symbol' ||
(isObjectLike$1(value) && objectToString$1.call(value) == symbolTag$1);
}
/**
* Converts `value` to a number.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to process.
* @returns {number} Returns the number.
* @example
*
* _.toNumber(3.2);
* // => 3.2
*
* _.toNumber(Number.MIN_VALUE);
* // => 5e-324
*
* _.toNumber(Infinity);
* // => Infinity
*
* _.toNumber('3.2');
* // => 3.2
*/
function toNumber$1(value) {
if (typeof value == 'number') {
return value;
}
if (isSymbol$1(value)) {
return NAN$1;
}
if (isObject$2(value)) {
var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
value = isObject$2(other) ? (other + '') : other;
}
if (typeof value != 'string') {
return value === 0 ? value : +value;
}
value = value.replace(reTrim$1, '');
var isBinary = reIsBinary$1.test(value);
return (isBinary || reIsOctal$1.test(value))
? freeParseInt$1(value.slice(2), isBinary ? 2 : 8)
: (reIsBadHex$1.test(value) ? NAN$1 : +value);
}
var lodash_debounce = debounce$1;
/**
* lodash (Custom Build) <https://lodash.com/>
* Build: `lodash modularize exports="npm" -o ./`
* Copyright jQuery Foundation and other contributors <https://jquery.org/>
* Released under MIT license <https://lodash.com/license>
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
*/
/** Used as the `TypeError` message for "Functions" methods. */
var FUNC_ERROR_TEXT$2 = 'Expected a function';
/** Used to stand-in for `undefined` hash values. */
var HASH_UNDEFINED = '__lodash_hash_undefined__';
/** `Object#toString` result references. */
var funcTag = '[object Function]',
genTag = '[object GeneratorFunction]';
/**
* Used to match `RegExp`
* [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
*/
var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
/** Used to detect host constructors (Safari). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;
/** Detect free variable `global` from Node.js. */
var freeGlobal$2 = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal;
/** Detect free variable `self`. */
var freeSelf$2 = typeof self == 'object' && self && self.Object === Object && self;
/** Used as a reference to the global object. */
var root$2 = freeGlobal$2 || freeSelf$2 || Function('return this')();
/**
* Gets the value at `key` of `object`.
*
* @private
* @param {Object} [object] The object to query.
* @param {string} key The key of the property to get.
* @returns {*} Returns the property value.
*/
function getValue(object, key) {
return object == null ? undefined : object[key];
}
/**
* Checks if `value` is a host object in IE < 9.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a host object, else `false`.
*/
function isHostObject(value) {
// Many host objects are `Object` objects that can coerce to strings
// despite having improperly defined `toString` methods.
var result = false;
if (value != null && typeof value.toString != 'function') {
try {
result = !!(value + '');
} catch (e) {}
}
return result;
}
/** Used for built-in method references. */
var arrayProto = Array.prototype,
funcProto = Function.prototype,
objectProto$2 = Object.prototype;
/** Used to detect overreaching core-js shims. */
var coreJsData = root$2['__core-js_shared__'];
/** Used to detect methods masquerading as native. */
var maskSrcKey = (function() {
var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
return uid ? ('Symbol(src)_1.' + uid) : '';
}());
/** Used to resolve the decompiled source of functions. */
var funcToString = funcProto.toString;
/** Used to check objects for own properties. */
var hasOwnProperty$1 = objectProto$2.hasOwnProperty;
/**
* Used to resolve the
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
* of values.
*/
var objectToString$2 = objectProto$2.toString;
/** Used to detect if a method is native. */
var reIsNative = RegExp('^' +
funcToString.call(hasOwnProperty$1).replace(reRegExpChar, '\\$&')
.replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);
/** Built-in value references. */
var splice = arrayProto.splice;
/* Built-in method references that are verified to be native. */
var Map$1 = getNative(root$2, 'Map'),
nativeCreate = getNative(Object, 'create');
/**
* Creates a hash object.
*
* @private
* @constructor
* @param {Array} [entries] The key-value pairs to cache.
*/
function Hash(entries) {
var index = -1,
length = entries ? entries.length : 0;
this.clear();
while (++index < length) {
var entry = entries[index];
this.set(entry[0], entry[1]);
}
}
/**
* Removes all key-value entries from the hash.
*
* @private
* @name clear
* @memberOf Hash
*/
function hashClear() {
this.__data__ = nativeCreate ? nativeCreate(null) : {};
}
/**
* Removes `key` and its value from the hash.
*
* @private
* @name delete
* @memberOf Hash
* @param {Object} hash The hash to modify.
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
*/
function hashDelete(key) {
return this.has(key) && delete this.__data__[key];
}
/**
* Gets the hash value for `key`.
*
* @private
* @name get
* @memberOf Hash
* @param {string} key The key of the value to get.
* @returns {*} Returns the entry value.
*/
function hashGet(key) {
var data = this.__data__;
if (nativeCreate) {
var result = data[key];
return result === HASH_UNDEFINED ? undefined : result;
}
return hasOwnProperty$1.call(data, key) ? data[key] : undefined;
}
/**
* Checks if a hash value for `key` exists.
*
* @private
* @name has
* @memberOf Hash
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function hashHas(key) {
var data = this.__data__;
return nativeCreate ? data[key] !== undefined : hasOwnProperty$1.call(data, key);
}
/**
* Sets the hash `key` to `value`.
*
* @private
* @name set
* @memberOf Hash
* @param {string} key The key of the value to set.
* @param {*} value The value to set.
* @returns {Object} Returns the hash instance.
*/
function hashSet(key, value) {
var data = this.__data__;
data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
return this;
}
// Add methods to `Hash`.
Hash.prototype.clear = hashClear;
Hash.prototype['delete'] = hashDelete;
Hash.prototype.get = hashGet;
Hash.prototype.has = hashHas;
Hash.prototype.set = hashSet;
/**
* Creates an list cache object.
*
* @private
* @constructor
* @param {Array} [entries] The key-value pairs to cache.
*/
function ListCache(entries) {
var index = -1,
length = entries ? entries.length : 0;
this.clear();
while (++index < length) {
var entry = entries[index];
this.set(entry[0], entry[1]);
}
}
/**
* Removes all key-value entries from the list cache.
*
* @private
* @name clear
* @memberOf ListCache
*/
function listCacheClear() {
this.__data__ = [];
}
/**
* Removes `key` and its value from the list cache.
*
* @private
* @name delete
* @memberOf ListCache
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
*/
function listCacheDelete(key) {
var data = this.__data__,
index = assocIndexOf(data, key);
if (index < 0) {
return false;
}
var lastIndex = data.length - 1;
if (index == lastIndex) {
data.pop();
} else {
splice.call(data, index, 1);
}
return true;
}
/**
* Gets the list cache value for `key`.
*
* @private
* @name get
* @memberOf ListCache
* @param {string} key The key of the value to get.
* @returns {*} Returns the entry value.
*/
function listCacheGet(key) {
var data = this.__data__,
index = assocIndexOf(data, key);
return index < 0 ? undefined : data[index][1];
}
/**
* Checks if a list cache value for `key` exists.
*
* @private
* @name has
* @memberOf ListCache
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function listCacheHas(key) {
return assocIndexOf(this.__data__, key) > -1;
}
/**
* Sets the list cache `key` to `value`.
*
* @private
* @name set
* @memberOf ListCache
* @param {string} key The key of the value to set.
* @param {*} value The value to set.
* @returns {Object} Returns the list cache instance.
*/
function listCacheSet(key, value) {
var data = this.__data__,
index = assocIndexOf(data, key);
if (index < 0) {
data.push([key, value]);
} else {
data[index][1] = value;
}
return this;
}
// Add methods to `ListCache`.
ListCache.prototype.clear = listCacheClear;
ListCache.prototype['delete'] = listCacheDelete;
ListCache.prototype.get = listCacheGet;
ListCache.prototype.has = listCacheHas;
ListCache.prototype.set = listCacheSet;
/**
* Creates a map cache object to store key-value pairs.
*
* @private
* @constructor
* @param {Array} [entries] The key-value pairs to cache.
*/
function MapCache(entries) {
var index = -1,
length = entries ? entries.length : 0;
this.clear();
while (++index < length) {
var entry = entries[index];
this.set(entry[0], entry[1]);
}
}
/**
* Removes all key-value entries from the map.
*
* @private
* @name clear
* @memberOf MapCache
*/
function mapCacheClear() {
this.__data__ = {
'hash': new Hash,
'map': new (Map$1 || ListCache),
'string': new Hash
};
}
/**
* Removes `key` and its value from the map.
*
* @private
* @name delete
* @memberOf MapCache
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
*/
function mapCacheDelete(key) {
return getMapData(this, key)['delete'](key);
}
/**
* Gets the map value for `key`.
*
* @private
* @name get
* @memberOf MapCache
* @param {string} key The key of the value to get.
* @returns {*} Returns the entry value.
*/
function mapCacheGet(key) {
return getMapData(this, key).get(key);
}
/**
* Checks if a map value for `key` exists.
*
* @private
* @name has
* @memberOf MapCache
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function mapCacheHas(key) {
return getMapData(this, key).has(key);
}
/**
* Sets the map `key` to `value`.
*
* @private
* @name set
* @memberOf MapCache
* @param {string} key The key of the value to set.
* @param {*} value The value to set.
* @returns {Object} Returns the map cache instance.
*/
function mapCacheSet(key, value) {
getMapData(this, key).set(key, value);
return this;
}
// Add methods to `MapCache`.
MapCache.prototype.clear = mapCacheClear;
MapCache.prototype['delete'] = mapCacheDelete;
MapCache.prototype.get = mapCacheGet;
MapCache.prototype.has = mapCacheHas;
MapCache.prototype.set = mapCacheSet;
/**
* Gets the index at which the `key` is found in `array` of key-value pairs.
*
* @private
* @param {Array} array The array to inspect.
* @param {*} key The key to search for.
* @returns {number} Returns the index of the matched value, else `-1`.
*/
function assocIndexOf(array, key) {
var length = array.length;
while (length--) {
if (eq(array[length][0], key)) {
return length;
}
}
return -1;
}
/**
* The base implementation of `_.isNative` without bad shim checks.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a native function,
* else `false`.
*/
function baseIsNative(value) {
if (!isObject$3(value) || isMasked(value)) {
return false;
}
var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
return pattern.test(toSource(value));
}
/**
* Gets the data for `map`.
*
* @private
* @param {Object} map The map to query.
* @param {string} key The reference key.
* @returns {*} Returns the map data.
*/
function getMapData(map, key) {
var data = map.__data__;
return isKeyable(key)
? data[typeof key == 'string' ? 'string' : 'hash']
: data.map;
}
/**
* Gets the native function at `key` of `object`.
*
* @private
* @param {Object} object The object to query.
* @param {string} key The key of the method to get.
* @returns {*} Returns the function if it's native, else `undefined`.
*/
function getNative(object, key) {
var value = getValue(object, key);
return baseIsNative(value) ? value : undefined;
}
/**
* Checks if `value` is suitable for use as unique object key.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is suitable, else `false`.
*/
function isKeyable(value) {
var type = typeof value;
return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
? (value !== '__proto__')
: (value === null);
}
/**
* Checks if `func` has its source masked.
*
* @private
* @param {Function} func The function to check.
* @returns {boolean} Returns `true` if `func` is masked, else `false`.
*/
function isMasked(func) {
return !!maskSrcKey && (maskSrcKey in func);
}
/**
* Converts `func` to its source code.
*
* @private
* @param {Function} func The function to process.
* @returns {string} Returns the source code.
*/
function toSource(func) {
if (func != null) {
try {
return funcToString.call(func);
} catch (e) {}
try {
return (func + '');
} catch (e) {}
}
return '';
}
/**
* Creates a function that memoizes the result of `func`. If `resolver` is
* provided, it determines the cache key for storing the result based on the
* arguments provided to the memoized function. By default, the first argument
* provided to the memoized function is used as the map cache key. The `func`
* is invoked with the `this` binding of the memoized function.
*
* **Note:** The cache is exposed as the `cache` property on the memoized
* function. Its creation may be customized by replacing the `_.memoize.Cache`
* constructor with one whose instances implement the
* [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
* method interface of `delete`, `get`, `has`, and `set`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to have its output memoized.
* @param {Function} [resolver] The function to resolve the cache key.
* @returns {Function} Returns the new memoized function.
* @example
*
* var object = { 'a': 1, 'b': 2 };
* var other = { 'c': 3, 'd': 4 };
*
* var values = _.memoize(_.values);
* values(object);
* // => [1, 2]
*
* values(other);
* // => [3, 4]
*
* object.a = 2;
* values(object);
* // => [1, 2]
*
* // Modify the result cache.
* values.cache.set(object, ['a', 'b']);
* values(object);
* // => ['a', 'b']
*
* // Replace `_.memoize.Cache`.
* _.memoize.Cache = WeakMap;
*/
function memoize(func, resolver) {
if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {
throw new TypeError(FUNC_ERROR_TEXT$2);
}
var memoized = function() {
var args = arguments,
key = resolver ? resolver.apply(this, args) : args[0],
cache = memoized.cache;
if (cache.has(key)) {
return cache.get(key);
}
var result = func.apply(this, args);
memoized.cache = cache.set(key, result);
return result;
};
memoized.cache = new (memoize.Cache || MapCache);
return memoized;
}
// Assign cache to `_.memoize`.
memoize.Cache = MapCache;
/**
* Performs a
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
* comparison between two values to determine if they are equivalent.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
* @example
*
* var object = { 'a': 1 };
* var other = { 'a': 1 };
*
* _.eq(object, object);
* // => true
*
* _.eq(object, other);
* // => false
*
* _.eq('a', 'a');
* // => true
*
* _.eq('a', Object('a'));
* // => false
*
* _.eq(NaN, NaN);
* // => true
*/
function eq(value, other) {
return value === other || (value !== value && other !== other);
}
/**
* Checks if `value` is classified as a `Function` object.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a function, else `false`.
* @example
*
* _.isFunction(_);
* // => true
*
* _.isFunction(/abc/);
* // => false
*/
function isFunction(value) {
// The use of `Object#toString` avoids issues with the `typeof` operator
// in Safari 8-9 which returns 'object' for typed array and other constructors.
var tag = isObject$3(value) ? objectToString$2.call(value) : '';
return tag == funcTag || tag == genTag;
}
/**
* Checks if `value` is the
* [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(_.noop);
* // => true
*
* _.isObject(null);
* // => false
*/
function isObject$3(value) {
var type = typeof value;
return !!value && (type == 'object' || type == 'function');
}
var lodash_memoize = memoize;
/**
* A collection of shims that provide minimal functionality of the ES6 collections.
*
* These implementations are not meant to be used outside of the ResizeObserver
* modules as they cover only a limited range of use cases.
*/
/* eslint-disable require-jsdoc, valid-jsdoc */
var MapShim = (function () {
if (typeof Map !== 'undefined') {
return Map;
}
/**
* Returns index in provided array that matches the specified key.
*
* @param {Array<Array>} arr
* @param {*} key
* @returns {number}
*/
function getIndex(arr, key) {
var result = -1;
arr.some(function (entry, index) {
if (entry[0] === key) {
result = index;
return true;
}
return false;
});
return result;
}
return /** @class */ (function () {
function class_1() {
this.__entries__ = [];
}
Object.defineProperty(class_1.prototype, "size", {
/**
* @returns {boolean}
*/
get: function () {
return this.__entries__.length;
},
enumerable: true,
configurable: true
});
/**
* @param {*} key
* @returns {*}
*/
class_1.prototype.get = function (key) {
var index = getIndex(this.__entries__, key);
var entry = this.__entries__[index];
return entry && entry[1];
};
/**
* @param {*} key
* @param {*} value
* @returns {void}
*/
class_1.prototype.set = function (key, value) {
var index = getIndex(this.__entries__, key);
if (~index) {
this.__entries__[index][1] = value;
}
else {
this.__entries__.push([key, value]);
}
};
/**
* @param {*} key
* @returns {void}
*/
class_1.prototype.delete = function (key) {
var entries = this.__entries__;
var index = getIndex(entries, key);
if (~index) {
entries.splice(index, 1);
}
};
/**
* @param {*} key
* @returns {void}
*/
class_1.prototype.has = function (key) {
return !!~getIndex(this.__entries__, key);
};
/**
* @returns {void}
*/
class_1.prototype.clear = function () {
this.__entries__.splice(0);
};
/**
* @param {Function} callback
* @param {*} [ctx=null]
* @returns {void}
*/
class_1.prototype.forEach = function (callback, ctx) {
if (ctx === void 0) { ctx = null; }
for (var _i = 0, _a = this.__entries__; _i < _a.length; _i++) {
var entry = _a[_i];
callback.call(ctx, entry[1], entry[0]);
}
};
return class_1;
}());
})();
/**
* Detects whether window and document objects are available in current environment.
*/
var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && window.document === document;
// Returns global object of a current environment.
var global$1$1 = (function () {
if (typeof global !== 'undefined' && global.Math === Math) {
return global;
}
if (typeof self !== 'undefined' && self.Math === Math) {
return self;
}
if (typeof window !== 'undefined' && window.Math === Math) {
return window;
}
// eslint-disable-next-line no-new-func
return Function('return this')();
})();
/**
* A shim for the requestAnimationFrame which falls back to the setTimeout if
* first one is not supported.
*
* @returns {number} Requests' identifier.
*/
var requestAnimationFrame$1 = (function () {
if (typeof requestAnimationFrame === 'function') {
// It's required to use a bounded function because IE sometimes throws
// an "Invalid calling object" error if rAF is invoked without the global
// object on the left hand side.
return requestAnimationFrame.bind(global$1$1);
}
return function (callback) { return setTimeout(function () { return callback(Date.now()); }, 1000 / 60); };
})();
// Defines minimum timeout before adding a trailing call.
var trailingTimeout = 2;
/**
* Creates a wrapper function which ensures that provided callback will be
* invoked only once during the specified delay period.
*
* @param {Function} callback - Function to be invoked after the delay period.
* @param {number} delay - Delay after which to invoke callback.
* @returns {Function}
*/
function throttle$1 (callback, delay) {
var leadingCall = false, trailingCall = false, lastCallTime = 0;
/**
* Invokes the original callback function and schedules new invocation if
* the "proxy" was called during current request.
*
* @returns {void}
*/
function resolvePending() {
if (leadingCall) {
leadingCall = false;
callback();
}
if (trailingCall) {
proxy();
}
}
/**
* Callback invoked after the specified delay. It will further postpone
* invocation of the original function delegating it to the
* requestAnimationFrame.
*
* @returns {void}
*/
function timeoutCallback() {
requestAnimationFrame$1(resolvePending);
}
/**
* Schedules invocation of the original function.
*
* @returns {void}
*/
function proxy() {
var timeStamp = Date.now();
if (leadingCall) {
// Reject immediately following calls.
if (timeStamp - lastCallTime < trailingTimeout) {
return;
}
// Schedule new call to be in invoked when the pending one is resolved.
// This is important for "transitions" which never actually start
// immediately so there is a chance that we might miss one if change
// happens amids the pending invocation.
trailingCall = true;
}
else {
leadingCall = true;
trailingCall = false;
setTimeout(timeoutCallback, delay);
}
lastCallTime = timeStamp;
}
return proxy;
}
// Minimum delay before invoking the update of observers.
var REFRESH_DELAY = 20;
// A list of substrings of CSS properties used to find transition events that
// might affect dimensions of observed elements.
var transitionKeys = ['top', 'right', 'bottom', 'left', 'width', 'height', 'size', 'weight'];
// Check if MutationObserver is available.
var mutationObserverSupported = typeof MutationObserver !== 'undefined';
/**
* Singleton controller class which handles updates of ResizeObserver instances.
*/
var ResizeObserverController = /** @class */ (function () {
/**
* Creates a new instance of ResizeObserverController.
*
* @private
*/
function ResizeObserverController() {
/**
* Indicates whether DOM listeners have been added.
*
* @private {boolean}
*/
this.connected_ = false;
/**
* Tells that controller has subscribed for Mutation Events.
*
* @private {boolean}
*/
this.mutationEventsAdded_ = false;
/**
* Keeps reference to the instance of MutationObserver.
*
* @private {MutationObserver}
*/
this.mutationsObserver_ = null;
/**
* A list of connected observers.
*
* @private {Array<ResizeObserverSPI>}
*/
this.observers_ = [];
this.onTransitionEnd_ = this.onTransitionEnd_.bind(this);
this.refresh = throttle$1(this.refresh.bind(this), REFRESH_DELAY);
}
/**
* Adds observer to observers list.
*
* @param {ResizeObserverSPI} observer - Observer to be added.
* @returns {void}
*/
ResizeObserverController.prototype.addObserver = function (observer) {
if (!~this.observers_.indexOf(observer)) {
this.observers_.push(observer);
}
// Add listeners if they haven't been added yet.
if (!this.connected_) {
this.connect_();
}
};
/**
* Removes observer from observers list.
*
* @param {ResizeObserverSPI} observer - Observer to be removed.
* @returns {void}
*/
ResizeObserverController.prototype.removeObserver = function (observer) {
var observers = this.observers_;
var index = observers.indexOf(observer);
// Remove observer if it's present in registry.
if (~index) {
observers.splice(index, 1);
}
// Remove listeners if controller has no connected observers.
if (!observers.length && this.connected_) {
this.disconnect_();
}
};
/**
* Invokes the update of observers. It will continue running updates insofar
* it detects changes.
*
* @returns {void}
*/
ResizeObserverController.prototype.refresh = function () {
var changesDetected = this.updateObservers_();
// Continue running updates if changes have been detected as there might
// be future ones caused by CSS transitions.
if (changesDetected) {
this.refresh();
}
};
/**
* Updates every observer from observers list and notifies them of queued
* entries.
*
* @private
* @returns {boolean} Returns "true" if any observer has detected changes in
* dimensions of it's elements.
*/
ResizeObserverController.prototype.updateObservers_ = function () {
// Collect observers that have active observations.
var activeObservers = this.observers_.filter(function (observer) {
return observer.gatherActive(), observer.hasActive();
});
// Deliver notifications in a separate cycle in order to avoid any
// collisions between observers, e.g. when multiple instances of
// ResizeObserver are tracking the same element and the callback of one
// of them changes content dimensions of the observed target. Sometimes
// this may result in notifications being blocked for the rest of observers.
activeObservers.forEach(function (observer) { return observer.broadcastActive(); });
return activeObservers.length > 0;
};
/**
* Initializes DOM listeners.
*
* @private
* @returns {void}
*/
ResizeObserverController.prototype.connect_ = function () {
// Do nothing if running in a non-browser environment or if listeners
// have been already added.
if (!isBrowser || this.connected_) {
return;
}
// Subscription to the "Transitionend" event is used as a workaround for
// delayed transitions. This way it's possible to capture at least the
// final state of an element.
document.addEventListener('transitionend', this.onTransitionEnd_);
window.addEventListener('resize', this.refresh);
if (mutationObserverSupported) {
this.mutationsObserver_ = new MutationObserver(this.refresh);
this.mutationsObserver_.observe(document, {
attributes: true,
childList: true,
characterData: true,
subtree: true
});
}
else {
document.addEventListener('DOMSubtreeModified', this.refresh);
this.mutationEventsAdded_ = true;
}
this.connected_ = true;
};
/**
* Removes DOM listeners.
*
* @private
* @returns {void}
*/
ResizeObserverController.prototype.disconnect_ = function () {
// Do nothing if running in a non-browser environment or if listeners
// have been already removed.
if (!isBrowser || !this.connected_) {
return;
}
document.removeEventListener('transitionend', this.onTransitionEnd_);
window.removeEventListener('resize', this.refresh);
if (this.mutationsObserver_) {
this.mutationsObserver_.disconnect();
}
if (this.mutationEventsAdded_) {
document.removeEventListener('DOMSubtreeModified', this.refresh);
}
this.mutationsObserver_ = null;
this.mutationEventsAdded_ = false;
this.connected_ = false;
};
/**
* "Transitionend" event handler.
*
* @private
* @param {TransitionEvent} event
* @returns {void}
*/
ResizeObserverController.prototype.onTransitionEnd_ = function (_a) {
var _b = _a.propertyName, propertyName = _b === void 0 ? '' : _b;
// Detect whether transition may affect dimensions of an element.
var isReflowProperty = transitionKeys.some(function (key) {
return !!~propertyName.indexOf(key);
});
if (isReflowProperty) {
this.refresh();
}
};
/**
* Returns instance of the ResizeObserverController.
*
* @returns {ResizeObserverController}
*/
ResizeObserverController.getInstance = function () {
if (!this.instance_) {
this.instance_ = new ResizeObserverController();
}
return this.instance_;
};
/**
* Holds reference to the controller's instance.
*
* @private {ResizeObserverController}
*/
ResizeObserverController.instance_ = null;
return ResizeObserverController;
}());
/**
* Defines non-writable/enumerable properties of the provided target object.
*
* @param {Object} target - Object for which to define properties.
* @param {Object} props - Properties to be defined.
* @returns {Object} Target object.
*/
var defineConfigurable = (function (target, props) {
for (var _i = 0, _a = Object.keys(props); _i < _a.length; _i++) {
var key = _a[_i];
Object.defineProperty(target, key, {
value: props[key],
enumerable: false,
writable: false,
configurable: true
});
}
return target;
});
/**
* Returns the global object associated with provided element.
*
* @param {Object} target
* @returns {Object}
*/
var getWindowOf = (function (target) {
// Assume that the element is an instance of Node, which means that it
// has the "ownerDocument" property from which we can retrieve a
// corresponding global object.
var ownerGlobal = target && target.ownerDocument && target.ownerDocument.defaultView;
// Return the local global object if it's not possible extract one from
// provided element.
return ownerGlobal || global$1$1;
});
// Placeholder of an empty content rectangle.
var emptyRect = createRectInit(0, 0, 0, 0);
/**
* Converts provided string to a number.
*
* @param {number|string} value
* @returns {number}
*/
function toFloat(value) {
return parseFloat(value) || 0;
}
/**
* Extracts borders size from provided styles.
*
* @param {CSSStyleDeclaration} styles
* @param {...string} positions - Borders positions (top, right, ...)
* @returns {number}
*/
function getBordersSize(styles) {
var positions = [];
for (var _i = 1; _i < arguments.length; _i++) {
positions[_i - 1] = arguments[_i];
}
return positions.reduce(function (size, position) {
var value = styles['border-' + position + '-width'];
return size + toFloat(value);
}, 0);
}
/**
* Extracts paddings sizes from provided styles.
*
* @param {CSSStyleDeclaration} styles
* @returns {Object} Paddings box.
*/
function getPaddings(styles) {
var positions = ['top', 'right', 'bottom', 'left'];
var paddings = {};
for (var _i = 0, positions_1 = positions; _i < positions_1.length; _i++) {
var position = positions_1[_i];
var value = styles['padding-' + position];
paddings[position] = toFloat(value);
}
return paddings;
}
/**
* Calculates content rectangle of provided SVG element.
*
* @param {SVGGraphicsElement} target - Element content rectangle of which needs
* to be calculated.
* @returns {DOMRectInit}
*/
function getSVGContentRect(target) {
var bbox = target.getBBox();
return createRectInit(0, 0, bbox.width, bbox.height);
}
/**
* Calculates content rectangle of provided HTMLElement.
*
* @param {HTMLElement} target - Element for which to calculate the content rectangle.
* @returns {DOMRectInit}
*/
function getHTMLElementContentRect(target) {
// Client width & height properties can't be
// used exclusively as they provide rounded values.
var clientWidth = target.clientWidth, clientHeight = target.clientHeight;
// By this condition we can catch all non-replaced inline, hidden and
// detached elements. Though elements with width & height properties less
// than 0.5 will be discarded as well.
//
// Without it we would need to implement separate methods for each of
// those cases and it's not possible to perform a precise and performance
// effective test for hidden elements. E.g. even jQuery's ':visible' filter
// gives wrong results for elements with width & height less than 0.5.
if (!clientWidth && !clientHeight) {
return emptyRect;
}
var styles = getWindowOf(target).getComputedStyle(target);
var paddings = getPaddings(styles);
var horizPad = paddings.left + paddings.right;
var vertPad = paddings.top + paddings.bottom;
// Computed styles of width & height are being used because they are the
// only dimensions available to JS that contain non-rounded values. It could
// be possible to utilize the getBoundingClientRect if only it's data wasn't
// affected by CSS transformations let alone paddings, borders and scroll bars.
var width = toFloat(styles.width), height = toFloat(styles.height);
// Width & height include paddings and borders when the 'border-box' box
// model is applied (except for IE).
if (styles.boxSizing === 'border-box') {
// Following conditions are required to handle Internet Explorer which
// doesn't include paddings and borders to computed CSS dimensions.
//
// We can say that if CSS dimensions + paddings are equal to the "client"
// properties then it's either IE, and thus we don't need to subtract
// anything, or an element merely doesn't have paddings/borders styles.
if (Math.round(width + horizPad) !== clientWidth) {
width -= getBordersSize(styles, 'left', 'right') + horizPad;
}
if (Math.round(height + vertPad) !== clientHeight) {
height -= getBordersSize(styles, 'top', 'bottom') + vertPad;
}
}
// Following steps can't be applied to the document's root element as its
// client[Width/Height] properties represent viewport area of the window.
// Besides, it's as well not necessary as the <html> itself neither has
// rendered scroll bars nor it can be clipped.
if (!isDocumentElement(target)) {
// In some browsers (only in Firefox, actually) CSS width & height
// include scroll bars size which can be removed at this step as scroll
// bars are the only difference between rounded dimensions + paddings
// and "client" properties, though that is not always true in Chrome.
var vertScrollbar = Math.round(width + horizPad) - clientWidth;
var horizScrollbar = Math.round(height + vertPad) - clientHeight;
// Chrome has a rather weird rounding of "client" properties.
// E.g. for an element with content width of 314.2px it sometimes gives
// the client width of 315px and for the width of 314.7px it may give
// 314px. And it doesn't happen all the time. So just ignore this delta
// as a non-relevant.
if (Math.abs(vertScrollbar) !== 1) {
width -= vertScrollbar;
}
if (Math.abs(horizScrollbar) !== 1) {
height -= horizScrollbar;
}
}
return createRectInit(paddings.left, paddings.top, width, height);
}
/**
* Checks whether provided element is an instance of the SVGGraphicsElement.
*
* @param {Element} target - Element to be checked.
* @returns {boolean}
*/
var isSVGGraphicsElement = (function () {
// Some browsers, namely IE and Edge, don't have the SVGGraphicsElement
// interface.
if (typeof SVGGraphicsElement !== 'undefined') {
return function (target) { return target instanceof getWindowOf(target).SVGGraphicsElement; };
}
// If it's so, then check that element is at least an instance of the
// SVGElement and that it has the "getBBox" method.
// eslint-disable-next-line no-extra-parens
return function (target) { return (target instanceof getWindowOf(target).SVGElement &&
typeof target.getBBox === 'function'); };
})();
/**
* Checks whether provided element is a document element (<html>).
*
* @param {Element} target - Element to be checked.
* @returns {boolean}
*/
function isDocumentElement(target) {
return target === getWindowOf(target).document.documentElement;
}
/**
* Calculates an appropriate content rectangle for provided html or svg element.
*
* @param {Element} target - Element content rectangle of which needs to be calculated.
* @returns {DOMRectInit}
*/
function getContentRect(target) {
if (!isBrowser) {
return emptyRect;
}
if (isSVGGraphicsElement(target)) {
return getSVGContentRect(target);
}
return getHTMLElementContentRect(target);
}
/**
* Creates rectangle with an interface of the DOMRectReadOnly.
* Spec: https://drafts.fxtf.org/geometry/#domrectreadonly
*
* @param {DOMRectInit} rectInit - Object with rectangle's x/y coordinates and dimensions.
* @returns {DOMRectReadOnly}
*/
function createReadOnlyRect(_a) {
var x = _a.x, y = _a.y, width = _a.width, height = _a.height;
// If DOMRectReadOnly is available use it as a prototype for the rectangle.
var Constr = typeof DOMRectReadOnly !== 'undefined' ? DOMRectReadOnly : Object;
var rect = Object.create(Constr.prototype);
// Rectangle's properties are not writable and non-enumerable.
defineConfigurable(rect, {
x: x, y: y, width: width, height: height,
top: y,
right: x + width,
bottom: height + y,
left: x
});
return rect;
}
/**
* Creates DOMRectInit object based on the provided dimensions and the x/y coordinates.
* Spec: https://drafts.fxtf.org/geometry/#dictdef-domrectinit
*
* @param {number} x - X coordinate.
* @param {number} y - Y coordinate.
* @param {number} width - Rectangle's width.
* @param {number} height - Rectangle's height.
* @returns {DOMRectInit}
*/
function createRectInit(x, y, width, height) {
return { x: x, y: y, width: width, height: height };
}
/**
* Class that is responsible for computations of the content rectangle of
* provided DOM element and for keeping track of it's changes.
*/
var ResizeObservation = /** @class */ (function () {
/**
* Creates an instance of ResizeObservation.
*
* @param {Element} target - Element to be observed.
*/
function ResizeObservation(target) {
/**
* Broadcasted width of content rectangle.
*
* @type {number}
*/
this.broadcastWidth = 0;
/**
* Broadcasted height of content rectangle.
*
* @type {number}
*/
this.broadcastHeight = 0;
/**
* Reference to the last observed content rectangle.
*
* @private {DOMRectInit}
*/
this.contentRect_ = createRectInit(0, 0, 0, 0);
this.target = target;
}
/**
* Updates content rectangle and tells whether it's width or height properties
* have changed since the last broadcast.
*
* @returns {boolean}
*/
ResizeObservation.prototype.isActive = function () {
var rect = getContentRect(this.target);
this.contentRect_ = rect;
return (rect.width !== this.broadcastWidth ||
rect.height !== this.broadcastHeight);
};
/**
* Updates 'broadcastWidth' and 'broadcastHeight' properties with a data
* from the corresponding properties of the last observed content rectangle.
*
* @returns {DOMRectInit} Last observed content rectangle.
*/
ResizeObservation.prototype.broadcastRect = function () {
var rect = this.contentRect_;
this.broadcastWidth = rect.width;
this.broadcastHeight = rect.height;
return rect;
};
return ResizeObservation;
}());
var ResizeObserverEntry = /** @class */ (function () {
/**
* Creates an instance of ResizeObserverEntry.
*
* @param {Element} target - Element that is being observed.
* @param {DOMRectInit} rectInit - Data of the element's content rectangle.
*/
function ResizeObserverEntry(target, rectInit) {
var contentRect = createReadOnlyRect(rectInit);
// According to the specification following properties are not writable
// and are also not enumerable in the native implementation.
//
// Property accessors are not being used as they'd require to define a
// private WeakMap storage which may cause memory leaks in browsers that
// don't support this type of collections.
defineConfigurable(this, { target: target, contentRect: contentRect });
}
return ResizeObserverEntry;
}());
var ResizeObserverSPI = /** @class */ (function () {
/**
* Creates a new instance of ResizeObserver.
*
* @param {ResizeObserverCallback} callback - Callback function that is invoked
* when one of the observed elements changes it's content dimensions.
* @param {ResizeObserverController} controller - Controller instance which
* is responsible for the updates of observer.
* @param {ResizeObserver} callbackCtx - Reference to the public
* ResizeObserver instance which will be passed to callback function.
*/
function ResizeObserverSPI(callback, controller, callbackCtx) {
/**
* Collection of resize observations that have detected changes in dimensions
* of elements.
*
* @private {Array<ResizeObservation>}
*/
this.activeObservations_ = [];
/**
* Registry of the ResizeObservation instances.
*
* @private {Map<Element, ResizeObservation>}
*/
this.observations_ = new MapShim();
if (typeof callback !== 'function') {
throw new TypeError('The callback provided as parameter 1 is not a function.');
}
this.callback_ = callback;
this.controller_ = controller;
this.callbackCtx_ = callbackCtx;
}
/**
* Starts observing provided element.
*
* @param {Element} target - Element to be observed.
* @returns {void}
*/
ResizeObserverSPI.prototype.observe = function (target) {
if (!arguments.length) {
throw new TypeError('1 argument required, but only 0 present.');
}
// Do nothing if current environment doesn't have the Element interface.
if (typeof Element === 'undefined' || !(Element instanceof Object)) {
return;
}
if (!(target instanceof getWindowOf(target).Element)) {
throw new TypeError('parameter 1 is not of type "Element".');
}
var observations = this.observations_;
// Do nothing if element is already being observed.
if (observations.has(target)) {
return;
}
observations.set(target, new ResizeObservation(target));
this.controller_.addObserver(this);
// Force the update of observations.
this.controller_.refresh();
};
/**
* Stops observing provided element.
*
* @param {Element} target - Element to stop observing.
* @returns {void}
*/
ResizeObserverSPI.prototype.unobserve = function (target) {
if (!arguments.length) {
throw new TypeError('1 argument required, but only 0 present.');
}
// Do nothing if current environment doesn't have the Element interface.
if (typeof Element === 'undefined' || !(Element instanceof Object)) {
return;
}
if (!(target instanceof getWindowOf(target).Element)) {
throw new TypeError('parameter 1 is not of type "Element".');
}
var observations = this.observations_;
// Do nothing if element is not being observed.
if (!observations.has(target)) {
return;
}
observations.delete(target);
if (!observations.size) {
this.controller_.removeObserver(this);
}
};
/**
* Stops observing all elements.
*
* @returns {void}
*/
ResizeObserverSPI.prototype.disconnect = function () {
this.clearActive();
this.observations_.clear();
this.controller_.removeObserver(this);
};
/**
* Collects observation instances the associated element of which has changed
* it's content rectangle.
*
* @returns {void}
*/
ResizeObserverSPI.prototype.gatherActive = function () {
var _this = this;
this.clearActive();
this.observations_.forEach(function (observation) {
if (observation.isActive()) {
_this.activeObservations_.push(observation);
}
});
};
/**
* Invokes initial callback function with a list of ResizeObserverEntry
* instances collected from active resize observations.
*
* @returns {void}
*/
ResizeObserverSPI.prototype.broadcastActive = function () {
// Do nothing if observer doesn't have active observations.
if (!this.hasActive()) {
return;
}
var ctx = this.callbackCtx_;
// Create ResizeObserverEntry instance for every active observation.
var entries = this.activeObservations_.map(function (observation) {
return new ResizeObserverEntry(observation.target, observation.broadcastRect());
});
this.callback_.call(ctx, entries, ctx);
this.clearActive();
};
/**
* Clears the collection of active observations.
*
* @returns {void}
*/
ResizeObserverSPI.prototype.clearActive = function () {
this.activeObservations_.splice(0);
};
/**
* Tells whether observer has active observations.
*
* @returns {boolean}
*/
ResizeObserverSPI.prototype.hasActive = function () {
return this.activeObservations_.length > 0;
};
return ResizeObserverSPI;
}());
// Registry of internal observers. If WeakMap is not available use current shim
// for the Map collection as it has all required methods and because WeakMap
// can't be fully polyfilled anyway.
var observers = typeof WeakMap !== 'undefined' ? new WeakMap() : new MapShim();
/**
* ResizeObserver API. Encapsulates the ResizeObserver SPI implementation
* exposing only those methods and properties that are defined in the spec.
*/
var ResizeObserver = /** @class */ (function () {
/**
* Creates a new instance of ResizeObserver.
*
* @param {ResizeObserverCallback} callback - Callback that is invoked when
* dimensions of the observed elements change.
*/
function ResizeObserver(callback) {
if (!(this instanceof ResizeObserver)) {
throw new TypeError('Cannot call a class as a function.');
}
if (!arguments.length) {
throw new TypeError('1 argument required, but only 0 present.');
}
var controller = ResizeObserverController.getInstance();
var observer = new ResizeObserverSPI(callback, controller, this);
observers.set(this, observer);
}
return ResizeObserver;
}());
// Expose public methods of ResizeObserver.
[
'observe',
'unobserve',
'disconnect'
].forEach(function (method) {
ResizeObserver.prototype[method] = function () {
var _a;
return (_a = observers.get(this))[method].apply(_a, arguments);
};
});
var index = (function () {
// Export existing implementation if available.
if (typeof global$1$1.ResizeObserver !== 'undefined') {
return global$1$1.ResizeObserver;
}
return ResizeObserver;
})();
var canUseDOM = !!(
typeof window !== 'undefined' &&
window.document &&
window.document.createElement
);
var canUseDom = canUseDOM;
function scrollbarWidth() {
if (typeof document === 'undefined') {
return 0;
}
var body = document.body;
var box = document.createElement('div');
var boxStyle = box.style;
boxStyle.position = 'fixed';
boxStyle.left = 0;
boxStyle.visibility = 'hidden';
boxStyle.overflowY = 'scroll';
body.appendChild(box);
var width = box.getBoundingClientRect().right;
body.removeChild(box);
return width;
}
var SimpleBar =
/*#__PURE__*/
function () {
function SimpleBar(element, options) {
var _this = this;
this.onScroll = function () {
if (!_this.scrollXTicking) {
window.requestAnimationFrame(_this.scrollX);
_this.scrollXTicking = true;
}
if (!_this.scrollYTicking) {
window.requestAnimationFrame(_this.scrollY);
_this.scrollYTicking = true;
}
};
this.scrollX = function () {
if (_this.axis.x.isOverflowing) {
_this.showScrollbar('x');
_this.positionScrollbar('x');
}
_this.scrollXTicking = false;
};
this.scrollY = function () {
if (_this.axis.y.isOverflowing) {
_this.showScrollbar('y');
_this.positionScrollbar('y');
}
_this.scrollYTicking = false;
};
this.onMouseEnter = function () {
_this.showScrollbar('x');
_this.showScrollbar('y');
};
this.onMouseMove = function (e) {
_this.mouseX = e.clientX;
_this.mouseY = e.clientY;
if (_this.axis.x.isOverflowing || _this.axis.x.forceVisible) {
_this.onMouseMoveForAxis('x');
}
if (_this.axis.y.isOverflowing || _this.axis.y.forceVisible) {
_this.onMouseMoveForAxis('y');
}
};
this.onMouseLeave = function () {
_this.onMouseMove.cancel();
if (_this.axis.x.isOverflowing || _this.axis.x.forceVisible) {
_this.onMouseLeaveForAxis('x');
}
if (_this.axis.y.isOverflowing || _this.axis.y.forceVisible) {
_this.onMouseLeaveForAxis('y');
}
_this.mouseX = -1;
_this.mouseY = -1;
};
this.onWindowResize = function () {
// Recalculate scrollbarWidth in case it's a zoom
_this.scrollbarWidth = scrollbarWidth();
_this.hideNativeScrollbar();
};
this.hideScrollbars = function () {
_this.axis.x.track.rect = _this.axis.x.track.el.getBoundingClientRect();
_this.axis.y.track.rect = _this.axis.y.track.el.getBoundingClientRect();
if (!_this.isWithinBounds(_this.axis.y.track.rect)) {
_this.axis.y.scrollbar.el.classList.remove(_this.classNames.visible);
_this.axis.y.isVisible = false;
}
if (!_this.isWithinBounds(_this.axis.x.track.rect)) {
_this.axis.x.scrollbar.el.classList.remove(_this.classNames.visible);
_this.axis.x.isVisible = false;
}
};
this.onPointerEvent = function (e) {
var isWithinBoundsY, isWithinBoundsX;
_this.axis.x.scrollbar.rect = _this.axis.x.scrollbar.el.getBoundingClientRect();
_this.axis.y.scrollbar.rect = _this.axis.y.scrollbar.el.getBoundingClientRect();
if (_this.axis.x.isOverflowing || _this.axis.x.forceVisible) {
isWithinBoundsX = _this.isWithinBounds(_this.axis.x.scrollbar.rect);
}
if (_this.axis.y.isOverflowing || _this.axis.y.forceVisible) {
isWithinBoundsY = _this.isWithinBounds(_this.axis.y.scrollbar.rect);
} // If any pointer event is called on the scrollbar
if (isWithinBoundsY || isWithinBoundsX) {
// Preventing the event's default action stops text being
// selectable during the drag.
e.preventDefault(); // Prevent event leaking
e.stopPropagation();
if (e.type === 'mousedown') {
if (isWithinBoundsY) {
_this.onDragStart(e, 'y');
}
if (isWithinBoundsX) {
_this.onDragStart(e, 'x');
}
}
}
};
this.drag = function (e) {
var eventOffset;
var track = _this.axis[_this.draggedAxis].track;
var trackSize = track.rect[_this.axis[_this.draggedAxis].sizeAttr];
var scrollbar = _this.axis[_this.draggedAxis].scrollbar;
var contentSize = _this.contentWrapperEl[_this.axis[_this.draggedAxis].scrollSizeAttr];
var hostSize = parseInt(_this.elStyles[_this.axis[_this.draggedAxis].sizeAttr], 10);
e.preventDefault();
e.stopPropagation();
if (_this.draggedAxis === 'y') {
eventOffset = e.pageY;
} else {
eventOffset = e.pageX;
} // Calculate how far the user's mouse is from the top/left of the scrollbar (minus the dragOffset).
var dragPos = eventOffset - track.rect[_this.axis[_this.draggedAxis].offsetAttr] - _this.axis[_this.draggedAxis].dragOffset; // Convert the mouse position into a percentage of the scrollbar height/width.
var dragPerc = dragPos / (trackSize - scrollbar.size); // Scroll the content by the same percentage.
var scrollPos = dragPerc * (contentSize - hostSize); // Fix browsers inconsistency on RTL
if (_this.draggedAxis === 'x') {
scrollPos = _this.isRtl && SimpleBar.getRtlHelpers().isRtlScrollbarInverted ? scrollPos - (trackSize + scrollbar.size) : scrollPos;
scrollPos = _this.isRtl && SimpleBar.getRtlHelpers().isRtlScrollingInverted ? -scrollPos : scrollPos;
}
_this.contentWrapperEl[_this.axis[_this.draggedAxis].scrollOffsetAttr] = scrollPos;
};
this.onEndDrag = function (e) {
e.preventDefault();
e.stopPropagation();
_this.el.classList.remove(_this.classNames.dragging);
document.removeEventListener('mousemove', _this.drag, true);
document.removeEventListener('mouseup', _this.onEndDrag, true);
_this.removePreventClickId = window.setTimeout(function () {
// Remove these asynchronously so we still suppress click events
// generated simultaneously with mouseup.
document.removeEventListener('click', _this.preventClick, true);
document.removeEventListener('dblclick', _this.preventClick, true);
_this.removePreventClickId = null;
});
};
this.preventClick = function (e) {
e.preventDefault();
e.stopPropagation();
};
this.el = element;
this.flashTimeout;
this.contentEl;
this.contentWrapperEl;
this.offsetEl;
this.maskEl;
this.globalObserver;
this.mutationObserver;
this.resizeObserver;
this.scrollbarWidth;
this.minScrollbarWidth = 20;
this.options = Object.assign({}, SimpleBar.defaultOptions, options);
this.classNames = Object.assign({}, SimpleBar.defaultOptions.classNames, this.options.classNames);
this.isRtl;
this.axis = {
x: {
scrollOffsetAttr: 'scrollLeft',
sizeAttr: 'width',
scrollSizeAttr: 'scrollWidth',
offsetAttr: 'left',
overflowAttr: 'overflowX',
dragOffset: 0,
isOverflowing: true,
isVisible: false,
forceVisible: false,
track: {},
scrollbar: {}
},
y: {
scrollOffsetAttr: 'scrollTop',
sizeAttr: 'height',
scrollSizeAttr: 'scrollHeight',
offsetAttr: 'top',
overflowAttr: 'overflowY',
dragOffset: 0,
isOverflowing: true,
isVisible: false,
forceVisible: false,
track: {},
scrollbar: {}
}
};
this.removePreventClickId = null; // Don't re-instantiate over an existing one
if (this.el.SimpleBar) {
return;
}
this.recalculate = lodash_throttle(this.recalculate.bind(this), 64);
this.onMouseMove = lodash_throttle(this.onMouseMove.bind(this), 64);
this.hideScrollbars = lodash_debounce(this.hideScrollbars.bind(this), this.options.timeout);
this.onWindowResize = lodash_debounce(this.onWindowResize.bind(this), 64, {
leading: true
});
SimpleBar.getRtlHelpers = lodash_memoize(SimpleBar.getRtlHelpers);
this.init();
}
/**
* Static properties
*/
/**
* Helper to fix browsers inconsistency on RTL:
* - Firefox inverts the scrollbar initial position
* - IE11 inverts both scrollbar position and scrolling offset
* Directly inspired by @KingSora's OverlayScrollbars https://github.com/KingSora/OverlayScrollbars/blob/master/js/OverlayScrollbars.js#L1634
*/
SimpleBar.getRtlHelpers = function getRtlHelpers() {
var dummyDiv = document.createElement('div');
dummyDiv.innerHTML = '<div class="hs-dummy-scrollbar-size"><div style="height: 200%; width: 200%; margin: 10px 0;"></div></div>';
var scrollbarDummyEl = dummyDiv.firstElementChild;
document.body.appendChild(scrollbarDummyEl);
var dummyContainerChild = scrollbarDummyEl.firstElementChild;
scrollbarDummyEl.scrollLeft = 0;
var dummyContainerOffset = SimpleBar.getOffset(scrollbarDummyEl);
var dummyContainerChildOffset = SimpleBar.getOffset(dummyContainerChild);
scrollbarDummyEl.scrollLeft = 999;
var dummyContainerScrollOffsetAfterScroll = SimpleBar.getOffset(dummyContainerChild);
return {
// determines if the scrolling is responding with negative values
isRtlScrollingInverted: dummyContainerOffset.left !== dummyContainerChildOffset.left && dummyContainerChildOffset.left - dummyContainerScrollOffsetAfterScroll.left !== 0,
// determines if the origin scrollbar position is inverted or not (positioned on left or right)
isRtlScrollbarInverted: dummyContainerOffset.left !== dummyContainerChildOffset.left
};
};
SimpleBar.initHtmlApi = function initHtmlApi() {
this.initDOMLoadedElements = this.initDOMLoadedElements.bind(this); // MutationObserver is IE11+
if (typeof MutationObserver !== 'undefined') {
// Mutation observer to observe dynamically added elements
this.globalObserver = new MutationObserver(function (mutations) {
mutations.forEach(function (mutation) {
Array.prototype.forEach.call(mutation.addedNodes, function (addedNode) {
if (addedNode.nodeType === 1) {
if (addedNode.hasAttribute('data-simplebar')) {
!addedNode.SimpleBar && new SimpleBar(addedNode, SimpleBar.getElOptions(addedNode));
} else {
Array.prototype.forEach.call(addedNode.querySelectorAll('[data-simplebar]'), function (el) {
!el.SimpleBar && new SimpleBar(el, SimpleBar.getElOptions(el));
});
}
}
});
Array.prototype.forEach.call(mutation.removedNodes, function (removedNode) {
if (removedNode.nodeType === 1) {
if (removedNode.hasAttribute('data-simplebar')) {
removedNode.SimpleBar && removedNode.SimpleBar.unMount();
} else {
Array.prototype.forEach.call(removedNode.querySelectorAll('[data-simplebar]'), function (el) {
el.SimpleBar && el.SimpleBar.unMount();
});
}
}
});
});
});
this.globalObserver.observe(document, {
childList: true,
subtree: true
});
} // Taken from jQuery `ready` function
// Instantiate elements already present on the page
if (document.readyState === 'complete' || document.readyState !== 'loading' && !document.documentElement.doScroll) {
// Handle it asynchronously to allow scripts the opportunity to delay init
window.setTimeout(this.initDOMLoadedElements);
} else {
document.addEventListener('DOMContentLoaded', this.initDOMLoadedElements);
window.addEventListener('load', this.initDOMLoadedElements);
}
} // Helper function to retrieve options from element attributes
;
SimpleBar.getElOptions = function getElOptions(el) {
var options = Array.prototype.reduce.call(el.attributes, function (acc, attribute) {
var option = attribute.name.match(/data-simplebar-(.+)/);
if (option) {
var key = option[1].replace(/\W+(.)/g, function (x, chr) {
return chr.toUpperCase();
});
switch (attribute.value) {
case 'true':
acc[key] = true;
break;
case 'false':
acc[key] = false;
break;
case undefined:
acc[key] = true;
break;
default:
acc[key] = attribute.value;
}
}
return acc;
}, {});
return options;
};
SimpleBar.removeObserver = function removeObserver() {
this.globalObserver.disconnect();
};
SimpleBar.initDOMLoadedElements = function initDOMLoadedElements() {
document.removeEventListener('DOMContentLoaded', this.initDOMLoadedElements);
window.removeEventListener('load', this.initDOMLoadedElements);
Array.prototype.forEach.call(document.querySelectorAll('[data-simplebar]'), function (el) {
if (!el.SimpleBar) new SimpleBar(el, SimpleBar.getElOptions(el));
});
};
SimpleBar.getOffset = function getOffset(el) {
var rect = el.getBoundingClientRect();
return {
top: rect.top + (window.pageYOffset || document.documentElement.scrollTop),
left: rect.left + (window.pageXOffset || document.documentElement.scrollLeft)
};
};
var _proto = SimpleBar.prototype;
_proto.init = function init() {
// Save a reference to the instance, so we know this DOM node has already been instancied
this.el.SimpleBar = this; // We stop here on server-side
if (canUseDom) {
this.initDOM();
this.scrollbarWidth = scrollbarWidth();
this.recalculate();
this.initListeners();
}
};
_proto.initDOM = function initDOM() {
var _this2 = this;
// make sure this element doesn't have the elements yet
if (Array.prototype.filter.call(this.el.children, function (child) {
return child.classList.contains(_this2.classNames.wrapper);
}).length) {
// assume that element has his DOM already initiated
this.wrapperEl = this.el.querySelector("." + this.classNames.wrapper);
this.contentWrapperEl = this.el.querySelector("." + this.classNames.contentWrapper);
this.offsetEl = this.el.querySelector("." + this.classNames.offset);
this.maskEl = this.el.querySelector("." + this.classNames.mask);
this.contentEl = this.el.querySelector("." + this.classNames.contentEl);
this.placeholderEl = this.el.querySelector("." + this.classNames.placeholder);
this.heightAutoObserverWrapperEl = this.el.querySelector("." + this.classNames.heightAutoObserverWrapperEl);
this.heightAutoObserverEl = this.el.querySelector("." + this.classNames.heightAutoObserverEl);
this.axis.x.track.el = this.findChild(this.el, "." + this.classNames.track + "." + this.classNames.horizontal);
this.axis.y.track.el = this.findChild(this.el, "." + this.classNames.track + "." + this.classNames.vertical);
} else {
// Prepare DOM
this.wrapperEl = document.createElement('div');
this.contentWrapperEl = document.createElement('div');
this.offsetEl = document.createElement('div');
this.maskEl = document.createElement('div');
this.contentEl = document.createElement('div');
this.placeholderEl = document.createElement('div');
this.heightAutoObserverWrapperEl = document.createElement('div');
this.heightAutoObserverEl = document.createElement('div');
this.wrapperEl.classList.add(this.classNames.wrapper);
this.contentWrapperEl.classList.add(this.classNames.contentWrapper);
this.offsetEl.classList.add(this.classNames.offset);
this.maskEl.classList.add(this.classNames.mask);
this.contentEl.classList.add(this.classNames.contentEl);
this.placeholderEl.classList.add(this.classNames.placeholder);
this.heightAutoObserverWrapperEl.classList.add(this.classNames.heightAutoObserverWrapperEl);
this.heightAutoObserverEl.classList.add(this.classNames.heightAutoObserverEl);
while (this.el.firstChild) {
this.contentEl.appendChild(this.el.firstChild);
}
this.contentWrapperEl.appendChild(this.contentEl);
this.offsetEl.appendChild(this.contentWrapperEl);
this.maskEl.appendChild(this.offsetEl);
this.heightAutoObserverWrapperEl.appendChild(this.heightAutoObserverEl);
this.wrapperEl.appendChild(this.heightAutoObserverWrapperEl);
this.wrapperEl.appendChild(this.maskEl);
this.wrapperEl.appendChild(this.placeholderEl);
this.el.appendChild(this.wrapperEl);
}
if (!this.axis.x.track.el || !this.axis.y.track.el) {
var track = document.createElement('div');
var scrollbar = document.createElement('div');
track.classList.add(this.classNames.track);
scrollbar.classList.add(this.classNames.scrollbar);
track.appendChild(scrollbar);
this.axis.x.track.el = track.cloneNode(true);
this.axis.x.track.el.classList.add(this.classNames.horizontal);
this.axis.y.track.el = track.cloneNode(true);
this.axis.y.track.el.classList.add(this.classNames.vertical);
this.el.appendChild(this.axis.x.track.el);
this.el.appendChild(this.axis.y.track.el);
}
this.axis.x.scrollbar.el = this.axis.x.track.el.querySelector("." + this.classNames.scrollbar);
this.axis.y.scrollbar.el = this.axis.y.track.el.querySelector("." + this.classNames.scrollbar);
if (!this.options.autoHide) {
this.axis.x.scrollbar.el.classList.add(this.classNames.visible);
this.axis.y.scrollbar.el.classList.add(this.classNames.visible);
}
this.el.setAttribute('data-simplebar', 'init');
};
_proto.initListeners = function initListeners() {
var _this3 = this;
// Event listeners
if (this.options.autoHide) {
this.el.addEventListener('mouseenter', this.onMouseEnter);
}
['mousedown', 'click', 'dblclick'].forEach(function (e) {
_this3.el.addEventListener(e, _this3.onPointerEvent, true);
});
['touchstart', 'touchend', 'touchmove'].forEach(function (e) {
_this3.el.addEventListener(e, _this3.onPointerEvent, {
capture: true,
passive: true
});
});
this.el.addEventListener('mousemove', this.onMouseMove);
this.el.addEventListener('mouseleave', this.onMouseLeave);
this.contentWrapperEl.addEventListener('scroll', this.onScroll); // Browser zoom triggers a window resize
window.addEventListener('resize', this.onWindowResize);
this.resizeObserver = new index(this.recalculate);
this.resizeObserver.observe(this.el);
this.resizeObserver.observe(this.contentEl);
};
_proto.recalculate = function recalculate() {
var isHeightAuto = this.heightAutoObserverEl.offsetHeight <= 1;
var isWidthAuto = this.heightAutoObserverEl.offsetWidth <= 1;
this.elStyles = window.getComputedStyle(this.el);
this.isRtl = this.elStyles.direction === 'rtl';
this.contentEl.style.padding = this.elStyles.paddingTop + " " + this.elStyles.paddingRight + " " + this.elStyles.paddingBottom + " " + this.elStyles.paddingLeft;
this.wrapperEl.style.margin = "-" + this.elStyles.paddingTop + " -" + this.elStyles.paddingRight + " -" + this.elStyles.paddingBottom + " -" + this.elStyles.paddingLeft;
this.contentWrapperEl.style.height = isHeightAuto ? 'auto' : '100%'; // Determine placeholder size
this.placeholderEl.style.width = isWidthAuto ? this.contentEl.offsetWidth + "px" : 'auto';
this.placeholderEl.style.height = this.contentEl.scrollHeight + "px"; // Set isOverflowing to false if scrollbar is not necessary (content is shorter than offset)
this.axis.x.isOverflowing = this.contentWrapperEl.scrollWidth > this.contentWrapperEl.offsetWidth;
this.axis.y.isOverflowing = this.contentWrapperEl.scrollHeight > this.contentWrapperEl.offsetHeight; // Set isOverflowing to false if user explicitely set hidden overflow
this.axis.x.isOverflowing = this.elStyles.overflowX === 'hidden' ? false : this.axis.x.isOverflowing;
this.axis.y.isOverflowing = this.elStyles.overflowY === 'hidden' ? false : this.axis.y.isOverflowing;
this.axis.x.forceVisible = this.options.forceVisible === 'x' || this.options.forceVisible === true;
this.axis.y.forceVisible = this.options.forceVisible === 'y' || this.options.forceVisible === true;
this.hideNativeScrollbar();
this.axis.x.track.rect = this.axis.x.track.el.getBoundingClientRect();
this.axis.y.track.rect = this.axis.y.track.el.getBoundingClientRect();
this.axis.x.scrollbar.size = this.getScrollbarSize('x');
this.axis.y.scrollbar.size = this.getScrollbarSize('y');
this.axis.x.scrollbar.el.style.width = this.axis.x.scrollbar.size + "px";
this.axis.y.scrollbar.el.style.height = this.axis.y.scrollbar.size + "px";
this.positionScrollbar('x');
this.positionScrollbar('y');
this.toggleTrackVisibility('x');
this.toggleTrackVisibility('y');
}
/**
* Calculate scrollbar size
*/
;
_proto.getScrollbarSize = function getScrollbarSize(axis) {
if (axis === void 0) {
axis = 'y';
}
var contentSize = this.scrollbarWidth ? this.contentWrapperEl[this.axis[axis].scrollSizeAttr] : this.contentWrapperEl[this.axis[axis].scrollSizeAttr] - this.minScrollbarWidth;
var trackSize = this.axis[axis].track.rect[this.axis[axis].sizeAttr];
var scrollbarSize;
if (!this.axis[axis].isOverflowing) {
return;
}
var scrollbarRatio = trackSize / contentSize; // Calculate new height/position of drag handle.
scrollbarSize = Math.max(~~(scrollbarRatio * trackSize), this.options.scrollbarMinSize);
if (this.options.scrollbarMaxSize) {
scrollbarSize = Math.min(scrollbarSize, this.options.scrollbarMaxSize);
}
return scrollbarSize;
};
_proto.positionScrollbar = function positionScrollbar(axis) {
if (axis === void 0) {
axis = 'y';
}
var contentSize = this.contentWrapperEl[this.axis[axis].scrollSizeAttr];
var trackSize = this.axis[axis].track.rect[this.axis[axis].sizeAttr];
var hostSize = parseInt(this.elStyles[this.axis[axis].sizeAttr], 10);
var scrollbar = this.axis[axis].scrollbar;
var scrollOffset = this.contentWrapperEl[this.axis[axis].scrollOffsetAttr];
scrollOffset = axis === 'x' && this.isRtl && SimpleBar.getRtlHelpers().isRtlScrollingInverted ? -scrollOffset : scrollOffset;
var scrollPourcent = scrollOffset / (contentSize - hostSize);
var handleOffset = ~~((trackSize - scrollbar.size) * scrollPourcent);
handleOffset = axis === 'x' && this.isRtl && SimpleBar.getRtlHelpers().isRtlScrollbarInverted ? handleOffset + (trackSize - scrollbar.size) : handleOffset;
scrollbar.el.style.transform = axis === 'x' ? "translate3d(" + handleOffset + "px, 0, 0)" : "translate3d(0, " + handleOffset + "px, 0)";
};
_proto.toggleTrackVisibility = function toggleTrackVisibility(axis) {
if (axis === void 0) {
axis = 'y';
}
var track = this.axis[axis].track.el;
var scrollbar = this.axis[axis].scrollbar.el;
if (this.axis[axis].isOverflowing || this.axis[axis].forceVisible) {
track.style.visibility = 'visible';
this.contentWrapperEl.style[this.axis[axis].overflowAttr] = 'scroll';
} else {
track.style.visibility = 'hidden';
this.contentWrapperEl.style[this.axis[axis].overflowAttr] = 'hidden';
} // Even if forceVisible is enabled, scrollbar itself should be hidden
if (this.axis[axis].isOverflowing) {
scrollbar.style.display = 'block';
} else {
scrollbar.style.display = 'none';
}
};
_proto.hideNativeScrollbar = function hideNativeScrollbar() {
this.offsetEl.style[this.isRtl ? 'left' : 'right'] = this.axis.y.isOverflowing || this.axis.y.forceVisible ? "-" + (this.scrollbarWidth || this.minScrollbarWidth) + "px" : 0;
this.offsetEl.style.bottom = this.axis.x.isOverflowing || this.axis.x.forceVisible ? "-" + (this.scrollbarWidth || this.minScrollbarWidth) + "px" : 0; // If floating scrollbar
if (!this.scrollbarWidth) {
var paddingDirection = [this.isRtl ? 'paddingLeft' : 'paddingRight'];
this.contentWrapperEl.style[paddingDirection] = this.axis.y.isOverflowing || this.axis.y.forceVisible ? this.minScrollbarWidth + "px" : 0;
this.contentWrapperEl.style.paddingBottom = this.axis.x.isOverflowing || this.axis.x.forceVisible ? this.minScrollbarWidth + "px" : 0;
}
}
/**
* On scroll event handling
*/
;
_proto.onMouseMoveForAxis = function onMouseMoveForAxis(axis) {
if (axis === void 0) {
axis = 'y';
}
this.axis[axis].track.rect = this.axis[axis].track.el.getBoundingClientRect();
this.axis[axis].scrollbar.rect = this.axis[axis].scrollbar.el.getBoundingClientRect();
var isWithinScrollbarBoundsX = this.isWithinBounds(this.axis[axis].scrollbar.rect);
if (isWithinScrollbarBoundsX) {
this.axis[axis].scrollbar.el.classList.add(this.classNames.hover);
} else {
this.axis[axis].scrollbar.el.classList.remove(this.classNames.hover);
}
if (this.isWithinBounds(this.axis[axis].track.rect)) {
this.showScrollbar(axis);
this.axis[axis].track.el.classList.add(this.classNames.hover);
} else {
this.axis[axis].track.el.classList.remove(this.classNames.hover);
}
};
_proto.onMouseLeaveForAxis = function onMouseLeaveForAxis(axis) {
if (axis === void 0) {
axis = 'y';
}
this.axis[axis].track.el.classList.remove(this.classNames.hover);
this.axis[axis].scrollbar.el.classList.remove(this.classNames.hover);
};
/**
* Show scrollbar
*/
_proto.showScrollbar = function showScrollbar(axis) {
if (axis === void 0) {
axis = 'y';
}
var scrollbar = this.axis[axis].scrollbar.el;
if (!this.axis[axis].isVisible) {
scrollbar.classList.add(this.classNames.visible);
this.axis[axis].isVisible = true;
}
if (this.options.autoHide) {
this.hideScrollbars();
}
}
/**
* Hide Scrollbar
*/
;
/**
* on scrollbar handle drag movement starts
*/
_proto.onDragStart = function onDragStart(e, axis) {
if (axis === void 0) {
axis = 'y';
}
var scrollbar = this.axis[axis].scrollbar.el; // Measure how far the user's mouse is from the top of the scrollbar drag handle.
var eventOffset = axis === 'y' ? e.pageY : e.pageX;
this.axis[axis].dragOffset = eventOffset - scrollbar.getBoundingClientRect()[this.axis[axis].offsetAttr];
this.draggedAxis = axis;
this.el.classList.add(this.classNames.dragging);
document.addEventListener('mousemove', this.drag, true);
document.addEventListener('mouseup', this.onEndDrag, true);
if (this.removePreventClickId === null) {
document.addEventListener('click', this.preventClick, true);
document.addEventListener('dblclick', this.preventClick, true);
} else {
window.clearTimeout(this.removePreventClickId);
this.removePreventClickId = null;
}
}
/**
* Drag scrollbar handle
*/
;
/**
* Getter for content element
*/
_proto.getContentElement = function getContentElement() {
return this.contentEl;
}
/**
* Getter for original scrolling element
*/
;
_proto.getScrollElement = function getScrollElement() {
return this.contentWrapperEl;
};
_proto.removeListeners = function removeListeners() {
var _this4 = this;
// Event listeners
if (this.options.autoHide) {
this.el.removeEventListener('mouseenter', this.onMouseEnter);
}
['mousedown', 'click', 'dblclick'].forEach(function (e) {
_this4.el.removeEventListener(e, _this4.onPointerEvent, true);
});
['touchstart', 'touchend', 'touchmove'].forEach(function (e) {
_this4.el.removeEventListener(e, _this4.onPointerEvent, {
capture: true,
passive: true
});
});
this.el.removeEventListener('mousemove', this.onMouseMove);
this.el.removeEventListener('mouseleave', this.onMouseLeave);
this.contentWrapperEl.removeEventListener('scroll', this.onScroll);
window.removeEventListener('resize', this.onWindowResize);
this.mutationObserver && this.mutationObserver.disconnect();
this.resizeObserver.disconnect(); // Cancel all debounced functions
this.recalculate.cancel();
this.onMouseMove.cancel();
this.hideScrollbars.cancel();
this.onWindowResize.cancel();
}
/**
* UnMount mutation observer and delete SimpleBar instance from DOM element
*/
;
_proto.unMount = function unMount() {
this.removeListeners();
this.el.SimpleBar = null;
}
/**
* Recursively walks up the parent nodes looking for this.el
*/
;
_proto.isChildNode = function isChildNode(el) {
if (el === null) return false;
if (el === this.el) return true;
return this.isChildNode(el.parentNode);
}
/**
* Check if mouse is within bounds
*/
;
_proto.isWithinBounds = function isWithinBounds(bbox) {
return this.mouseX >= bbox.left && this.mouseX <= bbox.left + bbox.width && this.mouseY >= bbox.top && this.mouseY <= bbox.top + bbox.height;
}
/**
* Find element children matches query
*/
;
_proto.findChild = function findChild(el, query) {
var matches = el.matches || el.webkitMatchesSelector || el.mozMatchesSelector || el.msMatchesSelector;
return Array.prototype.filter.call(el.children, function (child) {
return matches.call(child, query);
})[0];
};
return SimpleBar;
}();
/**
* HTML API
* Called only in a browser env.
*/
SimpleBar.defaultOptions = {
autoHide: true,
forceVisible: false,
classNames: {
contentEl: 'simplebar-content',
contentWrapper: 'simplebar-content-wrapper',
offset: 'simplebar-offset',
mask: 'simplebar-mask',
wrapper: 'simplebar-wrapper',
placeholder: 'simplebar-placeholder',
scrollbar: 'simplebar-scrollbar',
track: 'simplebar-track',
heightAutoObserverWrapperEl: 'simplebar-height-auto-observer-wrapper',
heightAutoObserverEl: 'simplebar-height-auto-observer',
visible: 'simplebar-visible',
horizontal: 'simplebar-horizontal',
vertical: 'simplebar-vertical',
hover: 'simplebar-hover',
dragging: 'simplebar-dragging'
},
scrollbarMinSize: 25,
scrollbarMaxSize: 0,
timeout: 1000
};
if (canUseDom) {
SimpleBar.initHtmlApi();
}
return SimpleBar;
}));