@google/model-viewer
Version:
Easily display interactive 3D models on the web and in AR!
1,276 lines (1,167 loc) • 1.64 MB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.ModelViewerElement = {}));
}(this, (function (exports) { 'use strict';
/* eslint no-invalid-this: 1 */
var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';
var slice$1 = Array.prototype.slice;
var toStr$3 = Object.prototype.toString;
var funcType = '[object Function]';
var implementation$2 = function bind(that) {
var target = this;
if (typeof target !== 'function' || toStr$3.call(target) !== funcType) {
throw new TypeError(ERROR_MESSAGE + target);
}
var args = slice$1.call(arguments, 1);
var bound;
var binder = function () {
if (this instanceof bound) {
var result = target.apply(
this,
args.concat(slice$1.call(arguments))
);
if (Object(result) === result) {
return result;
}
return this;
} else {
return target.apply(
that,
args.concat(slice$1.call(arguments))
);
}
};
var boundLength = Math.max(0, target.length - args.length);
var boundArgs = [];
for (var i = 0; i < boundLength; i++) {
boundArgs.push('$' + i);
}
bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this,arguments); }')(binder);
if (target.prototype) {
var Empty = function Empty() {};
Empty.prototype = target.prototype;
bound.prototype = new Empty();
Empty.prototype = null;
}
return bound;
};
var functionBind = Function.prototype.bind || implementation$2;
var src = functionBind.call(Function.call, Object.prototype.hasOwnProperty);
var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
function createCommonjsModule(fn, basedir, module) {
return module = {
path: basedir,
exports: {},
require: function (path, base) {
return commonjsRequire(path, (base === undefined || base === null) ? module.path : base);
}
}, fn(module, module.exports), module.exports;
}
function commonjsRequire () {
throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
}
/* eslint complexity: [2, 18], max-statements: [2, 33] */
var shams = function hasSymbols() {
if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
if (typeof Symbol.iterator === 'symbol') { return true; }
var obj = {};
var sym = Symbol('test');
var symObj = Object(sym);
if (typeof sym === 'string') { return false; }
if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }
if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }
// temp disabled per https://github.com/ljharb/object.assign/issues/17
// if (sym instanceof Symbol) { return false; }
// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4
// if (!(symObj instanceof Symbol)) { return false; }
// if (typeof Symbol.prototype.toString !== 'function') { return false; }
// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }
var symVal = 42;
obj[sym] = symVal;
for (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax
if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }
if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }
var syms = Object.getOwnPropertySymbols(obj);
if (syms.length !== 1 || syms[0] !== sym) { return false; }
if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }
if (typeof Object.getOwnPropertyDescriptor === 'function') {
var descriptor = Object.getOwnPropertyDescriptor(obj, sym);
if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }
}
return true;
};
var origSymbol = commonjsGlobal.Symbol;
var hasSymbols$2 = function hasNativeSymbols() {
if (typeof origSymbol !== 'function') { return false; }
if (typeof Symbol !== 'function') { return false; }
if (typeof origSymbol('foo') !== 'symbol') { return false; }
if (typeof Symbol('bar') !== 'symbol') { return false; }
return shams();
};
var undefined$1;
var $SyntaxError = SyntaxError;
var $Function = Function;
var $TypeError$1 = TypeError;
// eslint-disable-next-line consistent-return
var getEvalledConstructor = function (expressionSyntax) {
try {
return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')();
} catch (e) {}
};
var $gOPD = Object.getOwnPropertyDescriptor;
if ($gOPD) {
try {
$gOPD({}, '');
} catch (e) {
$gOPD = null; // this is IE 8, which has a broken gOPD
}
}
var throwTypeError = function () {
throw new $TypeError$1();
};
var ThrowTypeError = $gOPD
? (function () {
try {
// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties
arguments.callee; // IE 8 does not throw here
return throwTypeError;
} catch (calleeThrows) {
try {
// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '')
return $gOPD(arguments, 'callee').get;
} catch (gOPDthrows) {
return throwTypeError;
}
}
}())
: throwTypeError;
var hasSymbols$1 = hasSymbols$2();
var getProto = Object.getPrototypeOf || function (x) { return x.__proto__; }; // eslint-disable-line no-proto
var needsEval = {};
var TypedArray = typeof Uint8Array === 'undefined' ? undefined$1 : getProto(Uint8Array);
var INTRINSICS = {
'%AggregateError%': typeof AggregateError === 'undefined' ? undefined$1 : AggregateError,
'%Array%': Array,
'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined$1 : ArrayBuffer,
'%ArrayIteratorPrototype%': hasSymbols$1 ? getProto([][Symbol.iterator]()) : undefined$1,
'%AsyncFromSyncIteratorPrototype%': undefined$1,
'%AsyncFunction%': needsEval,
'%AsyncGenerator%': needsEval,
'%AsyncGeneratorFunction%': needsEval,
'%AsyncIteratorPrototype%': needsEval,
'%Atomics%': typeof Atomics === 'undefined' ? undefined$1 : Atomics,
'%BigInt%': typeof BigInt === 'undefined' ? undefined$1 : BigInt,
'%Boolean%': Boolean,
'%DataView%': typeof DataView === 'undefined' ? undefined$1 : DataView,
'%Date%': Date,
'%decodeURI%': decodeURI,
'%decodeURIComponent%': decodeURIComponent,
'%encodeURI%': encodeURI,
'%encodeURIComponent%': encodeURIComponent,
'%Error%': Error,
'%eval%': eval, // eslint-disable-line no-eval
'%EvalError%': EvalError,
'%Float32Array%': typeof Float32Array === 'undefined' ? undefined$1 : Float32Array,
'%Float64Array%': typeof Float64Array === 'undefined' ? undefined$1 : Float64Array,
'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined$1 : FinalizationRegistry,
'%Function%': $Function,
'%GeneratorFunction%': needsEval,
'%Int8Array%': typeof Int8Array === 'undefined' ? undefined$1 : Int8Array,
'%Int16Array%': typeof Int16Array === 'undefined' ? undefined$1 : Int16Array,
'%Int32Array%': typeof Int32Array === 'undefined' ? undefined$1 : Int32Array,
'%isFinite%': isFinite,
'%isNaN%': isNaN,
'%IteratorPrototype%': hasSymbols$1 ? getProto(getProto([][Symbol.iterator]())) : undefined$1,
'%JSON%': typeof JSON === 'object' ? JSON : undefined$1,
'%Map%': typeof Map === 'undefined' ? undefined$1 : Map,
'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols$1 ? undefined$1 : getProto(new Map()[Symbol.iterator]()),
'%Math%': Math,
'%Number%': Number,
'%Object%': Object,
'%parseFloat%': parseFloat,
'%parseInt%': parseInt,
'%Promise%': typeof Promise === 'undefined' ? undefined$1 : Promise,
'%Proxy%': typeof Proxy === 'undefined' ? undefined$1 : Proxy,
'%RangeError%': RangeError,
'%ReferenceError%': ReferenceError,
'%Reflect%': typeof Reflect === 'undefined' ? undefined$1 : Reflect,
'%RegExp%': RegExp,
'%Set%': typeof Set === 'undefined' ? undefined$1 : Set,
'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols$1 ? undefined$1 : getProto(new Set()[Symbol.iterator]()),
'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined$1 : SharedArrayBuffer,
'%String%': String,
'%StringIteratorPrototype%': hasSymbols$1 ? getProto(''[Symbol.iterator]()) : undefined$1,
'%Symbol%': hasSymbols$1 ? Symbol : undefined$1,
'%SyntaxError%': $SyntaxError,
'%ThrowTypeError%': ThrowTypeError,
'%TypedArray%': TypedArray,
'%TypeError%': $TypeError$1,
'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined$1 : Uint8Array,
'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined$1 : Uint8ClampedArray,
'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined$1 : Uint16Array,
'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined$1 : Uint32Array,
'%URIError%': URIError,
'%WeakMap%': typeof WeakMap === 'undefined' ? undefined$1 : WeakMap,
'%WeakRef%': typeof WeakRef === 'undefined' ? undefined$1 : WeakRef,
'%WeakSet%': typeof WeakSet === 'undefined' ? undefined$1 : WeakSet
};
var doEval = function doEval(name) {
var value;
if (name === '%AsyncFunction%') {
value = getEvalledConstructor('async function () {}');
} else if (name === '%GeneratorFunction%') {
value = getEvalledConstructor('function* () {}');
} else if (name === '%AsyncGeneratorFunction%') {
value = getEvalledConstructor('async function* () {}');
} else if (name === '%AsyncGenerator%') {
var fn = doEval('%AsyncGeneratorFunction%');
if (fn) {
value = fn.prototype;
}
} else if (name === '%AsyncIteratorPrototype%') {
var gen = doEval('%AsyncGenerator%');
if (gen) {
value = getProto(gen.prototype);
}
}
INTRINSICS[name] = value;
return value;
};
var LEGACY_ALIASES = {
'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],
'%ArrayPrototype%': ['Array', 'prototype'],
'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],
'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],
'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],
'%ArrayProto_values%': ['Array', 'prototype', 'values'],
'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],
'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],
'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],
'%BooleanPrototype%': ['Boolean', 'prototype'],
'%DataViewPrototype%': ['DataView', 'prototype'],
'%DatePrototype%': ['Date', 'prototype'],
'%ErrorPrototype%': ['Error', 'prototype'],
'%EvalErrorPrototype%': ['EvalError', 'prototype'],
'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],
'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],
'%FunctionPrototype%': ['Function', 'prototype'],
'%Generator%': ['GeneratorFunction', 'prototype'],
'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],
'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],
'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],
'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],
'%JSONParse%': ['JSON', 'parse'],
'%JSONStringify%': ['JSON', 'stringify'],
'%MapPrototype%': ['Map', 'prototype'],
'%NumberPrototype%': ['Number', 'prototype'],
'%ObjectPrototype%': ['Object', 'prototype'],
'%ObjProto_toString%': ['Object', 'prototype', 'toString'],
'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],
'%PromisePrototype%': ['Promise', 'prototype'],
'%PromiseProto_then%': ['Promise', 'prototype', 'then'],
'%Promise_all%': ['Promise', 'all'],
'%Promise_reject%': ['Promise', 'reject'],
'%Promise_resolve%': ['Promise', 'resolve'],
'%RangeErrorPrototype%': ['RangeError', 'prototype'],
'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],
'%RegExpPrototype%': ['RegExp', 'prototype'],
'%SetPrototype%': ['Set', 'prototype'],
'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],
'%StringPrototype%': ['String', 'prototype'],
'%SymbolPrototype%': ['Symbol', 'prototype'],
'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],
'%TypedArrayPrototype%': ['TypedArray', 'prototype'],
'%TypeErrorPrototype%': ['TypeError', 'prototype'],
'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],
'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],
'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],
'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],
'%URIErrorPrototype%': ['URIError', 'prototype'],
'%WeakMapPrototype%': ['WeakMap', 'prototype'],
'%WeakSetPrototype%': ['WeakSet', 'prototype']
};
var $concat = functionBind.call(Function.call, Array.prototype.concat);
var $spliceApply = functionBind.call(Function.apply, Array.prototype.splice);
var $replace = functionBind.call(Function.call, String.prototype.replace);
var $strSlice = functionBind.call(Function.call, String.prototype.slice);
/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */
var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g;
var reEscapeChar = /\\(\\)?/g; /** Used to match backslashes in property paths. */
var stringToPath = function stringToPath(string) {
var first = $strSlice(string, 0, 1);
var last = $strSlice(string, -1);
if (first === '%' && last !== '%') {
throw new $SyntaxError('invalid intrinsic syntax, expected closing `%`');
} else if (last === '%' && first !== '%') {
throw new $SyntaxError('invalid intrinsic syntax, expected opening `%`');
}
var result = [];
$replace(string, rePropName, function (match, number, quote, subString) {
result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match;
});
return result;
};
/* end adaptation */
var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) {
var intrinsicName = name;
var alias;
if (src(LEGACY_ALIASES, intrinsicName)) {
alias = LEGACY_ALIASES[intrinsicName];
intrinsicName = '%' + alias[0] + '%';
}
if (src(INTRINSICS, intrinsicName)) {
var value = INTRINSICS[intrinsicName];
if (value === needsEval) {
value = doEval(intrinsicName);
}
if (typeof value === 'undefined' && !allowMissing) {
throw new $TypeError$1('intrinsic ' + name + ' exists, but is not available. Please file an issue!');
}
return {
alias: alias,
name: intrinsicName,
value: value
};
}
throw new $SyntaxError('intrinsic ' + name + ' does not exist!');
};
var getIntrinsic = function GetIntrinsic(name, allowMissing) {
if (typeof name !== 'string' || name.length === 0) {
throw new $TypeError$1('intrinsic name must be a non-empty string');
}
if (arguments.length > 1 && typeof allowMissing !== 'boolean') {
throw new $TypeError$1('"allowMissing" argument must be a boolean');
}
var parts = stringToPath(name);
var intrinsicBaseName = parts.length > 0 ? parts[0] : '';
var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing);
var intrinsicRealName = intrinsic.name;
var value = intrinsic.value;
var skipFurtherCaching = false;
var alias = intrinsic.alias;
if (alias) {
intrinsicBaseName = alias[0];
$spliceApply(parts, $concat([0, 1], alias));
}
for (var i = 1, isOwn = true; i < parts.length; i += 1) {
var part = parts[i];
var first = $strSlice(part, 0, 1);
var last = $strSlice(part, -1);
if (
(
(first === '"' || first === "'" || first === '`')
|| (last === '"' || last === "'" || last === '`')
)
&& first !== last
) {
throw new $SyntaxError('property names with quotes must have matching quotes');
}
if (part === 'constructor' || !isOwn) {
skipFurtherCaching = true;
}
intrinsicBaseName += '.' + part;
intrinsicRealName = '%' + intrinsicBaseName + '%';
if (src(INTRINSICS, intrinsicRealName)) {
value = INTRINSICS[intrinsicRealName];
} else if (value != null) {
if (!(part in value)) {
if (!allowMissing) {
throw new $TypeError$1('base intrinsic for ' + name + ' exists, but the property is not available.');
}
return void undefined$1;
}
if ($gOPD && (i + 1) >= parts.length) {
var desc = $gOPD(value, part);
isOwn = !!desc;
// By convention, when a data property is converted to an accessor
// property to emulate a data property that does not suffer from
// the override mistake, that accessor's getter is marked with
// an `originalValue` property. Here, when we detect this, we
// uphold the illusion by pretending to see that original data
// property, i.e., returning the value rather than the getter
// itself.
if (isOwn && 'get' in desc && !('originalValue' in desc.get)) {
value = desc.get;
} else {
value = value[part];
}
} else {
isOwn = src(value, part);
value = value[part];
}
if (isOwn && !skipFurtherCaching) {
INTRINSICS[intrinsicRealName] = value;
}
}
}
return value;
};
var $TypeError = getIntrinsic('%TypeError%');
// http://ecma-international.org/ecma-262/5.1/#sec-9.10
var CheckObjectCoercible = function CheckObjectCoercible(value, optMessage) {
if (value == null) {
throw new $TypeError(optMessage || ('Cannot call method on ' + value));
}
return value;
};
var RequireObjectCoercible = CheckObjectCoercible;
var callBind = createCommonjsModule(function (module) {
var $apply = getIntrinsic('%Function.prototype.apply%');
var $call = getIntrinsic('%Function.prototype.call%');
var $reflectApply = getIntrinsic('%Reflect.apply%', true) || functionBind.call($call, $apply);
var $gOPD = getIntrinsic('%Object.getOwnPropertyDescriptor%', true);
var $defineProperty = getIntrinsic('%Object.defineProperty%', true);
var $max = getIntrinsic('%Math.max%');
if ($defineProperty) {
try {
$defineProperty({}, 'a', { value: 1 });
} catch (e) {
// IE 8 has a broken defineProperty
$defineProperty = null;
}
}
module.exports = function callBind(originalFunction) {
var func = $reflectApply(functionBind, $call, arguments);
if ($gOPD && $defineProperty) {
var desc = $gOPD(func, 'length');
if (desc.configurable) {
// original length, plus the receiver, minus any additional arguments (after the receiver)
$defineProperty(
func,
'length',
{ value: 1 + $max(0, originalFunction.length - (arguments.length - 1)) }
);
}
}
return func;
};
var applyBind = function applyBind() {
return $reflectApply(functionBind, $apply, arguments);
};
if ($defineProperty) {
$defineProperty(module.exports, 'apply', { value: applyBind });
} else {
module.exports.apply = applyBind;
}
});
var $indexOf = callBind(getIntrinsic('String.prototype.indexOf'));
var callBound = function callBoundIntrinsic(name, allowMissing) {
var intrinsic = getIntrinsic(name, !!allowMissing);
if (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) {
return callBind(intrinsic);
}
return intrinsic;
};
var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable');
var implementation$1 = function values(O) {
var obj = RequireObjectCoercible(O);
var vals = [];
for (var key in obj) {
if (src(obj, key) && $isEnumerable(obj, key)) {
vals.push(obj[key]);
}
}
return vals;
};
var polyfill = function getPolyfill() {
return typeof Object.values === 'function' ? Object.values : implementation$1;
};
var toStr$2 = Object.prototype.toString;
var isArguments = function isArguments(value) {
var str = toStr$2.call(value);
var isArgs = str === '[object Arguments]';
if (!isArgs) {
isArgs = str !== '[object Array]' &&
value !== null &&
typeof value === 'object' &&
typeof value.length === 'number' &&
value.length >= 0 &&
toStr$2.call(value.callee) === '[object Function]';
}
return isArgs;
};
var keysShim$1;
if (!Object.keys) {
// modified from https://github.com/es-shims/es5-shim
var has = Object.prototype.hasOwnProperty;
var toStr$1 = Object.prototype.toString;
var isArgs = isArguments; // eslint-disable-line global-require
var isEnumerable = Object.prototype.propertyIsEnumerable;
var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
var dontEnums = [
'toString',
'toLocaleString',
'valueOf',
'hasOwnProperty',
'isPrototypeOf',
'propertyIsEnumerable',
'constructor'
];
var equalsConstructorPrototype = function (o) {
var ctor = o.constructor;
return ctor && ctor.prototype === o;
};
var excludedKeys = {
$applicationCache: true,
$console: true,
$external: true,
$frame: true,
$frameElement: true,
$frames: true,
$innerHeight: true,
$innerWidth: true,
$onmozfullscreenchange: true,
$onmozfullscreenerror: true,
$outerHeight: true,
$outerWidth: true,
$pageXOffset: true,
$pageYOffset: true,
$parent: true,
$scrollLeft: true,
$scrollTop: true,
$scrollX: true,
$scrollY: true,
$self: true,
$webkitIndexedDB: true,
$webkitStorageInfo: true,
$window: true
};
var hasAutomationEqualityBug = (function () {
/* global window */
if (typeof window === 'undefined') { return false; }
for (var k in window) {
try {
if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
try {
equalsConstructorPrototype(window[k]);
} catch (e) {
return true;
}
}
} catch (e) {
return true;
}
}
return false;
}());
var equalsConstructorPrototypeIfNotBuggy = function (o) {
/* global window */
if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
return equalsConstructorPrototype(o);
}
try {
return equalsConstructorPrototype(o);
} catch (e) {
return false;
}
};
keysShim$1 = function keys(object) {
var isObject = object !== null && typeof object === 'object';
var isFunction = toStr$1.call(object) === '[object Function]';
var isArguments = isArgs(object);
var isString = isObject && toStr$1.call(object) === '[object String]';
var theKeys = [];
if (!isObject && !isFunction && !isArguments) {
throw new TypeError('Object.keys called on a non-object');
}
var skipProto = hasProtoEnumBug && isFunction;
if (isString && object.length > 0 && !has.call(object, 0)) {
for (var i = 0; i < object.length; ++i) {
theKeys.push(String(i));
}
}
if (isArguments && object.length > 0) {
for (var j = 0; j < object.length; ++j) {
theKeys.push(String(j));
}
} else {
for (var name in object) {
if (!(skipProto && name === 'prototype') && has.call(object, name)) {
theKeys.push(String(name));
}
}
}
if (hasDontEnumBug) {
var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
for (var k = 0; k < dontEnums.length; ++k) {
if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
theKeys.push(dontEnums[k]);
}
}
}
return theKeys;
};
}
var implementation = keysShim$1;
var slice = Array.prototype.slice;
var origKeys = Object.keys;
var keysShim = origKeys ? function keys(o) { return origKeys(o); } : implementation;
var originalKeys = Object.keys;
keysShim.shim = function shimObjectKeys() {
if (Object.keys) {
var keysWorksWithArguments = (function () {
// Safari 5.0 bug
var args = Object.keys(arguments);
return args && args.length === arguments.length;
}(1, 2));
if (!keysWorksWithArguments) {
Object.keys = function keys(object) { // eslint-disable-line func-name-matching
if (isArguments(object)) {
return originalKeys(slice.call(object));
}
return originalKeys(object);
};
}
} else {
Object.keys = keysShim;
}
return Object.keys || keysShim;
};
var objectKeys = keysShim;
var hasSymbols = typeof Symbol === 'function' && typeof Symbol('foo') === 'symbol';
var toStr = Object.prototype.toString;
var concat = Array.prototype.concat;
var origDefineProperty = Object.defineProperty;
var isFunction = function (fn) {
return typeof fn === 'function' && toStr.call(fn) === '[object Function]';
};
var arePropertyDescriptorsSupported = function () {
var obj = {};
try {
origDefineProperty(obj, 'x', { enumerable: false, value: obj });
// eslint-disable-next-line no-unused-vars, no-restricted-syntax
for (var _ in obj) { // jscs:ignore disallowUnusedVariables
return false;
}
return obj.x === obj;
} catch (e) { /* this is IE 8. */
return false;
}
};
var supportsDescriptors = origDefineProperty && arePropertyDescriptorsSupported();
var defineProperty = function (object, name, value, predicate) {
if (name in object && (!isFunction(predicate) || !predicate())) {
return;
}
if (supportsDescriptors) {
origDefineProperty(object, name, {
configurable: true,
enumerable: false,
value: value,
writable: true
});
} else {
object[name] = value;
}
};
var defineProperties = function (object, map) {
var predicates = arguments.length > 2 ? arguments[2] : {};
var props = objectKeys(map);
if (hasSymbols) {
props = concat.call(props, Object.getOwnPropertySymbols(map));
}
for (var i = 0; i < props.length; i += 1) {
defineProperty(object, props[i], map[props[i]], predicates[props[i]]);
}
};
defineProperties.supportsDescriptors = !!supportsDescriptors;
var defineProperties_1 = defineProperties;
var shim = function shimValues() {
var polyfill$1 = polyfill();
defineProperties_1(Object, { values: polyfill$1 }, {
values: function testValues() {
return Object.values !== polyfill$1;
}
});
return polyfill$1;
};
shim();
/**
* @license
* Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at
* http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at
* http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at
* http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at
* http://polymer.github.io/PATENTS.txt
*/
/**
* An expression marker with embedded unique key to avoid collision with
* possible text in templates.
*/
`{{lit-${String(Math.random()).slice(2)}}}`;
/**
* @license
* Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at
* http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at
* http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at
* http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at
* http://polymer.github.io/PATENTS.txt
*/
/**
* Our TrustedTypePolicy for HTML which is declared using the html template
* tag function.
*
* That HTML is a developer-authored constant, and is parsed with innerHTML
* before any untrusted expressions have been mixed in. Therefor it is
* considered safe by construction.
*/
window.trustedTypes &&
trustedTypes.createPolicy('lit-html', { createHTML: (s) => s });
/**
* @license
* Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at
* http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at
* http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at
* http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at
* http://polymer.github.io/PATENTS.txt
*/
// Detect event listener options support. If the `capture` property is read
// from the options object, then options are supported. If not, then the third
// argument to add/removeEventListener is interpreted as the boolean capture
// value so we should only pass the `capture` property.
let eventOptionsSupported = false;
// Wrap into an IIFE because MS Edge <= v41 does not support having try/catch
// blocks right into the body of a module
(() => {
try {
const options = {
get capture() {
eventOptionsSupported = true;
return false;
}
};
// eslint-disable-next-line @typescript-eslint/no-explicit-any
window.addEventListener('test', options, options);
// eslint-disable-next-line @typescript-eslint/no-explicit-any
window.removeEventListener('test', options, options);
}
catch (_e) {
// event options not supported
}
})();
/**
* @license
* Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at
* http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at
* http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at
* http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at
* http://polymer.github.io/PATENTS.txt
*/
// IMPORTANT: do not change the property name or the assignment expression.
// This line will be used in regexes to search for lit-html usage.
// TODO(justinfagnani): inject version number at build time
if (typeof window !== 'undefined') {
(window['litHtmlVersions'] || (window['litHtmlVersions'] = [])).push('1.3.0');
}
/**
* @license
* Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at
* http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at
* http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at
* http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at
* http://polymer.github.io/PATENTS.txt
*/
if (typeof window.ShadyCSS === 'undefined') ;
else if (typeof window.ShadyCSS.prepareTemplateDom === 'undefined') {
console.warn(`Incompatible ShadyCSS version detected. ` +
`Please update to at least @webcomponents/webcomponentsjs@2.0.2 and ` +
`@webcomponents/shadycss@1.3.1.`);
}
/**
* @license
* Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at
* http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at
* http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at
* http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at
* http://polymer.github.io/PATENTS.txt
*/
var _a$c;
/**
* Use this module if you want to create your own base class extending
* [[UpdatingElement]].
* @packageDocumentation
*/
/*
* When using Closure Compiler, JSCompiler_renameProperty(property, object) is
* replaced at compile time by the munged name for object[property]. We cannot
* alias this function, so we have to use a small shim that has the same
* behavior when not compiling.
*/
window.JSCompiler_renameProperty =
(prop, _obj) => prop;
const defaultConverter = {
toAttribute(value, type) {
switch (type) {
case Boolean:
return value ? '' : null;
case Object:
case Array:
// if the value is `null` or `undefined` pass this through
// to allow removing/no change behavior.
return value == null ? value : JSON.stringify(value);
}
return value;
},
fromAttribute(value, type) {
switch (type) {
case Boolean:
return value !== null;
case Number:
return value === null ? null : Number(value);
case Object:
case Array:
return JSON.parse(value);
}
return value;
}
};
/**
* Change function that returns true if `value` is different from `oldValue`.
* This method is used as the default for a property's `hasChanged` function.
*/
const notEqual = (value, old) => {
// This ensures (old==NaN, value==NaN) always returns false
return old !== value && (old === old || value === value);
};
const defaultPropertyDeclaration = {
attribute: true,
type: String,
converter: defaultConverter,
reflect: false,
hasChanged: notEqual
};
const STATE_HAS_UPDATED = 1;
const STATE_UPDATE_REQUESTED = 1 << 2;
const STATE_IS_REFLECTING_TO_ATTRIBUTE = 1 << 3;
const STATE_IS_REFLECTING_TO_PROPERTY = 1 << 4;
/**
* The Closure JS Compiler doesn't currently have good support for static
* property semantics where "this" is dynamic (e.g.
* https://github.com/google/closure-compiler/issues/3177 and others) so we use
* this hack to bypass any rewriting by the compiler.
*/
const finalized = 'finalized';
/**
* Base element class which manages element properties and attributes. When
* properties change, the `update` method is asynchronously called. This method
* should be supplied by subclassers to render updates as desired.
* @noInheritDoc
*/
class UpdatingElement extends HTMLElement {
constructor() {
super();
this.initialize();
}
/**
* Returns a list of attributes corresponding to the registered properties.
* @nocollapse
*/
static get observedAttributes() {
// note: piggy backing on this to ensure we're finalized.
this.finalize();
const attributes = [];
// Use forEach so this works even if for/of loops are compiled to for loops
// expecting arrays
this._classProperties.forEach((v, p) => {
const attr = this._attributeNameForProperty(p, v);
if (attr !== undefined) {
this._attributeToPropertyMap.set(attr, p);
attributes.push(attr);
}
});
return attributes;
}
/**
* Ensures the private `_classProperties` property metadata is created.
* In addition to `finalize` this is also called in `createProperty` to
* ensure the `@property` decorator can add property metadata.
*/
/** @nocollapse */
static _ensureClassProperties() {
// ensure private storage for property declarations.
if (!this.hasOwnProperty(JSCompiler_renameProperty('_classProperties', this))) {
this._classProperties = new Map();
// NOTE: Workaround IE11 not supporting Map constructor argument.
const superProperties = Object.getPrototypeOf(this)._classProperties;
if (superProperties !== undefined) {
superProperties.forEach((v, k) => this._classProperties.set(k, v));
}
}
}
/**
* Creates a property accessor on the element prototype if one does not exist
* and stores a PropertyDeclaration for the property with the given options.
* The property setter calls the property's `hasChanged` property option
* or uses a strict identity check to determine whether or not to request
* an update.
*
* This method may be overridden to customize properties; however,
* when doing so, it's important to call `super.createProperty` to ensure
* the property is setup correctly. This method calls
* `getPropertyDescriptor` internally to get a descriptor to install.
* To customize what properties do when they are get or set, override
* `getPropertyDescriptor`. To customize the options for a property,
* implement `createProperty` like this:
*
* static createProperty(name, options) {
* options = Object.assign(options, {myOption: true});
* super.createProperty(name, options);
* }
*
* @nocollapse
*/
static createProperty(name, options = defaultPropertyDeclaration) {
// Note, since this can be called by the `@property` decorator which
// is called before `finalize`, we ensure storage exists for property
// metadata.
this._ensureClassProperties();
this._classProperties.set(name, options);
// Do not generate an accessor if the prototype already has one, since
// it would be lost otherwise and that would never be the user's intention;
// Instead, we expect users to call `requestUpdate` themselves from
// user-defined accessors. Note that if the super has an accessor we will
// still overwrite it
if (options.noAccessor || this.prototype.hasOwnProperty(name)) {
return;
}
const key = typeof name === 'symbol' ? Symbol() : `__${name}`;
const descriptor = this.getPropertyDescriptor(name, key, options);
if (descriptor !== undefined) {
Object.defineProperty(this.prototype, name, descriptor);
}
}
/**
* Returns a property descriptor to be defined on the given named property.
* If no descriptor is returned, the property will not become an accessor.
* For example,
*
* class MyElement extends LitElement {
* static getPropertyDescriptor(name, key, options) {
* const defaultDescriptor =
* super.getPropertyDescriptor(name, key, options);
* const setter = defaultDescriptor.set;
* return {
* get: defaultDescriptor.get,
* set(value) {
* setter.call(this, value);
* // custom action.
* },
* configurable: true,
* enumerable: true
* }
* }
* }
*
* @nocollapse
*/
static getPropertyDescriptor(name, key, options) {
return {
// tslint:disable-next-line:no-any no symbol in index
get() {
return this[key];
},
set(value) {
const oldValue = this[name];
this[key] = value;
this
.requestUpdateInternal(name, oldValue, options);
},
configurable: true,
enumerable: true
};
}
/**
* Returns the property options associated with the given property.
* These options are defined with a PropertyDeclaration via the `properties`
* object or the `@property` decorator and are registered in
* `createProperty(...)`.
*
* Note, this method should be considered "final" and not overridden. To
* customize the options for a given property, override `createProperty`.
*
* @nocollapse
* @final
*/
static getPropertyOptions(name) {
return this._classProperties && this._classProperties.get(name) ||
defaultPropertyDeclaration;
}
/**
* Creates property accessors for registered properties and ensures
* any superclasses are also finalized.
* @nocollapse
*/
static finalize() {
// finalize any superclasses
const superCtor = Object.getPrototypeOf(this);
if (!superCtor.hasOwnProperty(finalized)) {
superCtor.finalize();
}
this[finalized] = true;
this._ensureClassProperties();
// initialize Map populated in observedAttributes
this._attributeToPropertyMap = new Map();
// make any properties
// Note, only process "own" properties since this element will inherit
// any properties defined on the superClass, and finalization ensures
// the entire prototype chain is finalized.
if (this.hasOwnProperty(JSCompiler_renameProperty('properties', this))) {
const props = this.properties;
// support symbols in properties (IE11 does not support this)
const propKeys = [
...Object.getOwnPropertyNames(props),
...(typeof Object.getOwnPropertySymbols === 'function') ?
Object.getOwnPropertySymbols(props) :
[]
];
// This for/of is ok because propKeys is an array
for (const p of propKeys) {
// note, use of `any` is due to TypeSript lack of support for symbol in
// index types
// tslint:disable-next-line:no-any no symbol in index
this.createProperty(p, props[p]);
}
}
}
/**
* Returns the property name for the given attribute `name`.
* @nocollapse
*/
static _attributeNameForProperty(name, options) {
const attribute = options.attribute;
return attribute === false ?
undefined :
(typeof attribute === 'string' ?
attribute :
(typeof name === 'string' ? name.toLowerCase() : undefined));
}
/**
* Returns true if a property should request an update.
* Called when a property value is set and uses the `hasChanged`
* option for the property if present or a strict identity check.
* @nocollapse
*/
static _valueHasChanged(value, old, hasChanged = notEqual) {
return hasChanged(value, old);
}
/**
* Returns the property value for the given attribute value.
* Called via the `attributeChangedCallback` and uses the property's
* `converter` or `converter.fromAttribute` property option.
* @nocollapse
*/
static _propertyValueFromAttribute(value, options) {
const type = options.type;
const converter = options.converter || defaultConverter;
const fromAttribute = (typeof converter === 'function' ? converter : converter.fromAttribute);
return fromAttribute ? fromAttribute(value, type) : value;
}
/**
* Returns the attribute value for the given property value. If this
* returns undefined, the property will *not* be reflected to an attribute.
* If this returns null, the attribute will be removed, otherwise the
* attribute will be set to the value.
* This uses the property's `reflect` and `type.toAttribute` property options.
* @nocollapse
*/
static _propertyValueToAttribute(value, options) {
if (options.reflect === undefined) {
return;
}
const type = options.type;
const converter = options.converter;
const toAttribute = converter && converter.toAttribute ||
defaultConverter.toAttribute;
return toAttribute(value, type);
}
/**
* Performs element initialization. By default captures any pre-set values for
* registered properties.
*/
initialize() {
this._updateState = 0;
this._updatePromise =
new Promise((res) => this._enableUpdatingResolver = res);
this._changedProperties = new Map();
this._saveInstanceProperties();
// ensures first update will be caught by an early access of
// `updateComplete`
this.requestUpdateInternal();
}
/**
* Fixes any properties set on the instance before upgrade time.
* Otherwise these would shadow the accessor and break these properties.
* The properties are stored in a Map which is played back after the
* constructor runs. Note, on very old versions of Safari (<=9) or Chrome
* (<=41), properties created for native platform properties like (`id` or
* `name`) may not have default values set in the element constructor. On
* these browsers native properties appear on instances and therefore their
* default value will overwrite any element default (e.g. if the element sets
* this.id = 'id' in the constructor, the 'id' will become '' since this is
* the native platform default).
*/
_saveInstanceProperties() {
// Use forEach so this works even if for/of loops are compiled to for loops
// expecting arrays
this.constructor
._classProperties.forEach((_v, p) => {
if (this.hasOwnProperty(p)) {
const value = this[p];
delete this[p];
if (!this._instanceProperties) {
this._instanceProperties = new Map();
}
this._instanceProperties.set(p, value);
}
});
}
/**
* Applies previously saved instance properties.
*/
_applyInstanceProperties() {
// Use forEach so this works even if for/of loops are compiled to for loops
// expecting arrays
// tslint:disable-next-line:no-any
this._instanceProperties.forEach((v, p) => this[p] = v);
this._instanceProperties = undefined;
}
connectedCallback() {
// Ensure first connection completes an update. Updates cannot complete
// before connection.
this.enableUpdating();
}
enableUpdating() {
if (this._enableUpdatingResolver !== undefined) {
this._en