project/node_modules/zrender/lib/core/util.js

import { platformApi } from './platform.js';
var BUILTIN_OBJECT = reduce([
    'Function',
    'RegExp',
    'Date',
    'Error',
    'CanvasGradient',
    'CanvasPattern',
    'Image',
    'Canvas'
], function (obj, val) {
    obj['[object ' + val + ']'] = true;
    return obj;
}, {});
var TYPED_ARRAY = reduce([
    'Int8',
    'Uint8',
    'Uint8Clamped',
    'Int16',
    'Uint16',
    'Int32',
    'Uint32',
    'Float32',
    'Float64'
], function (obj, val) {
    obj['[object ' + val + 'Array]'] = true;
    return obj;
}, {});
var objToString = Object.prototype.toString;
var arrayProto = Array.prototype;
var nativeForEach = arrayProto.forEach;
var nativeFilter = arrayProto.filter;
var nativeSlice = arrayProto.slice;
var nativeMap = arrayProto.map;
var ctorFunction = function () { }.constructor;
var protoFunction = ctorFunction ? ctorFunction.prototype : null;
var protoKey = '__proto__';
var idStart = 0x0907;
export function guid() {
    return idStart++;
}
export function logError() {
    var args = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        args[_i] = arguments[_i];
    }
    if (typeof console !== 'undefined') {
        console.error.apply(console, args);
    }
}
export function clone(source) {
    if (source == null || typeof source !== 'object') {
        return source;
    }
    var result = source;
    var typeStr = objToString.call(source);
    if (typeStr === '[object Array]') {
        if (!isPrimitive(source)) {
            result = [];
            for (var i = 0, len = source.length; i < len; i++) {
                result[i] = clone(source[i]);
            }
        }
    }
    else if (TYPED_ARRAY[typeStr]) {
        if (!isPrimitive(source)) {
            var Ctor = source.constructor;
            if (Ctor.from) {
                result = Ctor.from(source);
            }
            else {
                result = new Ctor(source.length);
                for (var i = 0, len = source.length; i < len; i++) {
                    result[i] = source[i];
                }
            }
        }
    }
    else if (!BUILTIN_OBJECT[typeStr] && !isPrimitive(source) && !isDom(source)) {
        result = {};
        for (var key in source) {
            if (source.hasOwnProperty(key) && key !== protoKey) {
                result[key] = clone(source[key]);
            }
        }
    }
    return result;
}
export function merge(target, source, overwrite) {
    if (!isObject(source) || !isObject(target)) {
        return overwrite ? clone(source) : target;
    }
    for (var key in source) {
        if (source.hasOwnProperty(key) && key !== protoKey) {
            var targetProp = target[key];
            var sourceProp = source[key];
            if (isObject(sourceProp)
                && isObject(targetProp)
                && !isArray(sourceProp)
                && !isArray(targetProp)
                && !isDom(sourceProp)
                && !isDom(targetProp)
                && !isBuiltInObject(sourceProp)
                && !isBuiltInObject(targetProp)
                && !isPrimitive(sourceProp)
                && !isPrimitive(targetProp)) {
                merge(targetProp, sourceProp, overwrite);
            }
            else if (overwrite || !(key in target)) {
                target[key] = clone(source[key]);
            }
        }
    }
    return target;
}
export function mergeAll(targetAndSources, overwrite) {
    var result = targetAndSources[0];
    for (var i = 1, len = targetAndSources.length; i < len; i++) {
        result = merge(result, targetAndSources[i], overwrite);
    }
    return result;
}
export function extend(target, source) {
    if (Object.assign) {
        Object.assign(target, source);
    }
    else {
        for (var key in source) {
            if (source.hasOwnProperty(key) && key !== protoKey) {
                target[key] = source[key];
            }
        }
    }
    return target;
}
export function defaults(target, source, overlay) {
    var keysArr = keys(source);
    for (var i = 0; i < keysArr.length; i++) {
        var key = keysArr[i];
        if ((overlay ? source[key] != null : target[key] == null)) {
            target[key] = source[key];
        }
    }
    return target;
}
export var createCanvas = platformApi.createCanvas;
export function indexOf(array, value) {
    if (array) {
        if (array.indexOf) {
            return array.indexOf(value);
        }
        for (var i = 0, len = array.length; i < len; i++) {
            if (array[i] === value) {
                return i;
            }
        }
    }
    return -1;
}
export function inherits(clazz, baseClazz) {
    var clazzPrototype = clazz.prototype;
    function F() { }
    F.prototype = baseClazz.prototype;
    clazz.prototype = new F();
    for (var prop in clazzPrototype) {
        if (clazzPrototype.hasOwnProperty(prop)) {
            clazz.prototype[prop] = clazzPrototype[prop];
        }
    }
    clazz.prototype.constructor = clazz;
    clazz.superClass = baseClazz;
}
export function mixin(target, source, override) {
    target = 'prototype' in target ? target.prototype : target;
    source = 'prototype' in source ? source.prototype : source;
    if (Object.getOwnPropertyNames) {
        var keyList = Object.getOwnPropertyNames(source);
        for (var i = 0; i < keyList.length; i++) {
            var key = keyList[i];
            if (key !== 'constructor') {
                if ((override ? source[key] != null : target[key] == null)) {
                    target[key] = source[key];
                }
            }
        }
    }
    else {
        defaults(target, source, override);
    }
}
export function isArrayLike(data) {
    if (!data) {
        return false;
    }
    if (typeof data === 'string') {
        return false;
    }
    return typeof data.length === 'number';
}
export function each(arr, cb, context) {
    if (!(arr && cb)) {
        return;
    }
    if (arr.forEach && arr.forEach === nativeForEach) {
        arr.forEach(cb, context);
    }
    else if (arr.length === +arr.length) {
        for (var i = 0, len = arr.length; i < len; i++) {
            cb.call(context, arr[i], i, arr);
        }
    }
    else {
        for (var key in arr) {
            if (arr.hasOwnProperty(key)) {
                cb.call(context, arr[key], key, arr);
            }
        }
    }
}
export function map(arr, cb, context) {
    if (!arr) {
        return [];
    }
    if (!cb) {
        return slice(arr);
    }
    if (arr.map && arr.map === nativeMap) {
        return arr.map(cb, context);
    }
    else {
        var result = [];
        for (var i = 0, len = arr.length; i < len; i++) {
            result.push(cb.call(context, arr[i], i, arr));
        }
        return result;
    }
}
export function reduce(arr, cb, memo, context) {
    if (!(arr && cb)) {
        return;
    }
    for (var i = 0, len = arr.length; i < len; i++) {
        memo = cb.call(context, memo, arr[i], i, arr);
    }
    return memo;
}
export function filter(arr, cb, context) {
    if (!arr) {
        return [];
    }
    if (!cb) {
        return slice(arr);
    }
    if (arr.filter && arr.filter === nativeFilter) {
        return arr.filter(cb, context);
    }
    else {
        var result = [];
        for (var i = 0, len = arr.length; i < len; i++) {
            if (cb.call(context, arr[i], i, arr)) {
                result.push(arr[i]);
            }
        }
        return result;
    }
}
export function find(arr, cb, context) {
    if (!(arr && cb)) {
        return;
    }
    for (var i = 0, len = arr.length; i < len; i++) {
        if (cb.call(context, arr[i], i, arr)) {
            return arr[i];
        }
    }
}
export function keys(obj) {
    if (!obj) {
        return [];
    }
    if (Object.keys) {
        return Object.keys(obj);
    }
    var keyList = [];
    for (var key in obj) {
        if (obj.hasOwnProperty(key)) {
            keyList.push(key);
        }
    }
    return keyList;
}
function bindPolyfill(func, context) {
    var args = [];
    for (var _i = 2; _i < arguments.length; _i++) {
        args[_i - 2] = arguments[_i];
    }
    return function () {
        return func.apply(context, args.concat(nativeSlice.call(arguments)));
    };
}
export var bind = (protoFunction && isFunction(protoFunction.bind))
    ? protoFunction.call.bind(protoFunction.bind)
    : bindPolyfill;
function curry(func) {
    var args = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        args[_i - 1] = arguments[_i];
    }
    return function () {
        return func.apply(this, args.concat(nativeSlice.call(arguments)));
    };
}
export { curry };
export function isArray(value) {
    if (Array.isArray) {
        return Array.isArray(value);
    }
    return objToString.call(value) === '[object Array]';
}
export function isFunction(value) {
    return typeof value === 'function';
}
export function isString(value) {
    return typeof value === 'string';
}
export function isStringSafe(value) {
    return objToString.call(value) === '[object String]';
}
export function isNumber(value) {
    return typeof value === 'number';
}
export function isObject(value) {
    var type = typeof value;
    return type === 'function' || (!!value && type === 'object');
}
export function isBuiltInObject(value) {
    return !!BUILTIN_OBJECT[objToString.call(value)];
}
export function isTypedArray(value) {
    return !!TYPED_ARRAY[objToString.call(value)];
}
export function isDom(value) {
    return typeof value === 'object'
        && typeof value.nodeType === 'number'
        && typeof value.ownerDocument === 'object';
}
export function isGradientObject(value) {
    return value.colorStops != null;
}
export function isImagePatternObject(value) {
    return value.image != null;
}
export function isRegExp(value) {
    return objToString.call(value) === '[object RegExp]';
}
export function eqNaN(value) {
    return value !== value;
}
export function retrieve() {
    var args = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        args[_i] = arguments[_i];
    }
    for (var i = 0, len = args.length; i < len; i++) {
        if (args[i] != null) {
            return args[i];
        }
    }
}
export function retrieve2(value0, value1) {
    return value0 != null
        ? value0
        : value1;
}
export function retrieve3(value0, value1, value2) {
    return value0 != null
        ? value0
        : value1 != null
            ? value1
            : value2;
}
export function slice(arr) {
    var args = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        args[_i - 1] = arguments[_i];
    }
    return nativeSlice.apply(arr, args);
}
export function normalizeCssArray(val) {
    if (typeof (val) === 'number') {
        return [val, val, val, val];
    }
    var len = val.length;
    if (len === 2) {
        return [val[0], val[1], val[0], val[1]];
    }
    else if (len === 3) {
        return [val[0], val[1], val[2], val[1]];
    }
    return val;
}
export function assert(condition, message) {
    if (!condition) {
        throw new Error(message);
    }
}
export function trim(str) {
    if (str == null) {
        return null;
    }
    else if (typeof str.trim === 'function') {
        return str.trim();
    }
    else {
        return str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
    }
}
var primitiveKey = '__ec_primitive__';
export function setAsPrimitive(obj) {
    obj[primitiveKey] = true;
}
export function isPrimitive(obj) {
    return obj[primitiveKey];
}
var MapPolyfill = (function () {
    function MapPolyfill() {
        this.data = {};
    }
    MapPolyfill.prototype["delete"] = function (key) {
        var existed = this.has(key);
        if (existed) {
            delete this.data[key];
        }
        return existed;
    };
    MapPolyfill.prototype.has = function (key) {
        return this.data.hasOwnProperty(key);
    };
    MapPolyfill.prototype.get = function (key) {
        return this.data[key];
    };
    MapPolyfill.prototype.set = function (key, value) {
        this.data[key] = value;
        return this;
    };
    MapPolyfill.prototype.keys = function () {
        return keys(this.data);
    };
    MapPolyfill.prototype.forEach = function (callback) {
        var data = this.data;
        for (var key in data) {
            if (data.hasOwnProperty(key)) {
                callback(data[key], key);
            }
        }
    };
    return MapPolyfill;
}());
var isNativeMapSupported = typeof Map === 'function';
function maybeNativeMap() {
    return (isNativeMapSupported ? new Map() : new MapPolyfill());
}
var HashMap = (function () {
    function HashMap(obj) {
        var isArr = isArray(obj);
        this.data = maybeNativeMap();
        var thisMap = this;
        (obj instanceof HashMap)
            ? obj.each(visit)
            : (obj && each(obj, visit));
        function visit(value, key) {
            isArr ? thisMap.set(value, key) : thisMap.set(key, value);
        }
    }
    HashMap.prototype.hasKey = function (key) {
        return this.data.has(key);
    };
    HashMap.prototype.get = function (key) {
        return this.data.get(key);
    };
    HashMap.prototype.set = function (key, value) {
        this.data.set(key, value);
        return value;
    };
    HashMap.prototype.each = function (cb, context) {
        this.data.forEach(function (value, key) {
            cb.call(context, value, key);
        });
    };
    HashMap.prototype.keys = function () {
        var keys = this.data.keys();
        return isNativeMapSupported
            ? Array.from(keys)
            : keys;
    };
    HashMap.prototype.removeKey = function (key) {
        this.data["delete"](key);
    };
    return HashMap;
}());
export { HashMap };
export function createHashMap(obj) {
    return new HashMap(obj);
}
export function concatArray(a, b) {
    var newArray = new a.constructor(a.length + b.length);
    for (var i = 0; i < a.length; i++) {
        newArray[i] = a[i];
    }
    var offset = a.length;
    for (var i = 0; i < b.length; i++) {
        newArray[i + offset] = b[i];
    }
    return newArray;
}
export function createObject(proto, properties) {
    var obj;
    if (Object.create) {
        obj = Object.create(proto);
    }
    else {
        var StyleCtor = function () { };
        StyleCtor.prototype = proto;
        obj = new StyleCtor();
    }
    if (properties) {
        extend(obj, properties);
    }
    return obj;
}
export function disableUserSelect(dom) {
    var domStyle = dom.style;
    domStyle.webkitUserSelect = 'none';
    domStyle.userSelect = 'none';
    domStyle.webkitTapHighlightColor = 'rgba(0,0,0,0)';
    domStyle['-webkit-touch-callout'] = 'none';
}
export function hasOwn(own, prop) {
    return own.hasOwnProperty(prop);
}
export function noop() { }
export var RADIAN_TO_DEGREE = 180 / Math.PI;