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Utils.ts
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Utils.ts
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import Kernel = require('./Kernel');
type ArrayVoidCallback = (value: any, index: number, arr: Array<any>) => void;
type ArrayBooleanCallback = (value: any, index: number, arr: any[]) => boolean;
type ArrayAnyCallback = (value: any, index: number, arr: any[]) => any;
type TopicCallback = (data:any) => void;
const topic:{[key:string]:TopicCallback[]} = {};
class Utils {
static isNumber(v: any): boolean {
return typeof v === "number";
}
static isInteger(v: any): boolean {
var isInt = false;
var isNum = this.isNumber(v);
if (isNum) {
var numFloat = parseFloat(v);
var numInt = parseInt(v);
if (numFloat === numInt) {
isInt = true;
}
else {
isInt = false;
}
}
else {
isInt = false;
}
return isInt;
}
static isPositive(v: number): boolean {
return v > 0;
}
static isNegative(v: number): boolean {
return v < 0;
}
static isNonNegative(v: number): boolean {
return v >= 0;
}
static isNonPositive(v: number): boolean {
return v <= 0;
}
static isPositiveInteger(v: number): boolean {
return this.isPositive(v) && this.isInteger(v);
}
static isNonNegativeInteger(v: number): boolean {
return this.isNonNegative(v) && this.isInteger(v);
}
static isArray(v: any): boolean {
return Object.prototype.toString.call(v) === '[object Array]';
}
static isFunction(v: any) {
return typeof v === 'function';
}
static forEach(arr: ArrayLike<any>, func: ArrayVoidCallback): void {
return this.isFunction((<any>arr).forEach) ? (<any>arr).forEach(func) : Array.prototype.forEach.call(arr, func);
}
static filter(arr: ArrayLike<any>, func: ArrayBooleanCallback): any[] {
return this.isFunction((<any>arr).filter) ? (<any>arr).filter(func) : Array.prototype.filter.call(arr, func);
}
static map(arr: ArrayLike<any>, func: ArrayAnyCallback): any[] {
return this.isFunction((<any>arr).map) ? (<any>arr).map(func) : Array.prototype.map.call(arr, func);
}
static some(arr: ArrayLike<any>, func: ArrayBooleanCallback): boolean {
return this.isFunction((<any>arr).some) ? (<any>arr).some(func) : Array.prototype.some.call(arr, func);
}
static every(arr: ArrayLike<any>, func: ArrayBooleanCallback): boolean {
return this.isFunction((<any>arr).every) ? (<any>arr).every(func) : Array.prototype.every.call(arr, func);
}
//过滤掉数组中重复的元素
static filterRepeatArray(arr: Array<any>): any[] {
var cloneArray = arr.map(function (item: any) {
return item;
});
var simplifyArray: Array<any> = [];
while (cloneArray.length > 0) {
var e = cloneArray[0];
var exist = simplifyArray.some(function (item: any) {
return e.equals(item);
});
if (!exist) {
simplifyArray.push(e);
}
cloneArray.splice(0, 1);
}
return simplifyArray;
}
static jsonp(url: string, callback: (response: any) => void, callbackParameterName: string = "cb"): () => void {
var callbackName = `webglobe_callback_` + Math.random().toString().substring(2);
if (url.indexOf('?') < 0) {
url += '?';
} else {
url += '&';
}
url += `${callbackParameterName}=window.${callbackName}`;
var scriptElement = document.createElement("script");
scriptElement.setAttribute("src", url);
scriptElement.setAttribute("async", "true");
document.body.appendChild(scriptElement);
var canceled = false;
(<any>window)[callbackName] = function (response: any) {
if (!canceled) {
callback(response);
}
delete (<any>window)[callbackName];
scriptElement.src = "";
if (scriptElement.parentNode) {
scriptElement.parentNode.removeChild(scriptElement);
}
}
return function () {
canceled = true;
};
}
static isMobile(): boolean {
return !!window.navigator.userAgent.match(/Android|webOS|iPhone|iPad|iPod|BlackBerry|Windows Phone|IEMobile|Opera Mini/i);
}
static wrapUrlWithProxy(url: string): string{
if (Kernel.proxy) {
return Kernel.proxy + "?" + url;
}
return url;
}
static subscribe(topicName: string, callback: TopicCallback){
if(!topic[topicName]){
topic[topicName] = [];
}
topic[topicName].push(callback);
}
static publish(topicName: string, data: any){
var callbacks = topic[topicName];
if(callbacks && callbacks.length > 0){
callbacks.forEach(function(callback: TopicCallback){
callback(data);
});
}
}
};
export = Utils;