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

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JavaScript
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2024-07-14 15:48:34 +08:00
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;