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PxerLauncher.class.js

Pxer的启动器类文件@稳定版

Version vom 12.10.2016. Aktuellste Version

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.sleazyfork.org/scripts/23946/152160/PxerLauncherclassjs.js 

'use strict';

class PxerLauncher{
    constructor(options){
        Object.assign(this ,{
            sync:[],
            asyn:[],
            onsync:()=>console.log('Sync list is OK!'),
            onasyn:()=>{},
            onerror:err=>console.error(err),
            cache:true,
        } ,options)
    };
};


PxerLauncher.prototype['load'] =function(){
    this.loadSync();
    this.loadAsyn();
};


PxerLauncher.prototype['createElt'] =function(path){
    var extName =path.replace('.php','').match(/\.([A-Za-z0-9]*?)(?:\?.+)?$/)[1];
    let tagName =this.tagMap[extName].tag;
    var elt =document.createElement(tagName);

    //避免缓存(new Date()).getTime()
    if(!this.cache) path =path.indexOf('?')==-1 ?path+'?'+(new Date()).getTime() :path+'&'+(new Date()).getTime();

    let attr =this.tagMap[extName].attr;
    for(let key in attr){
        if(attr[key] ==='%PATH%'){
            elt.setAttribute(key ,path);
            continue;
        };
        elt.setAttribute(key ,attr[key])
    };

    return elt;

};


PxerLauncher.prototype['loadAsyn'] =function(){
    this.asyn.forEach(function (item){
        let elt =this.createElt(item);
        elt.async =true;
        document.head.appendChild(elt);
    } ,this);
};
PxerLauncher.prototype['loadSync'] =function(){
    var pms =Promise.resolve();
    this.sync.forEach(function (item){
        pms =pms.then(()=>{
            return new Promise((resolve ,reject)=>{
                let elt =this.createElt(item);
                elt.addEventListener('load' ,resolve);
                elt.addEventListener('error' ,reject.bind(null ,elt));
                document.head.appendChild(elt);
            });
        });
    } ,this);

    pms.then(this.onsync);
    pms.catch((err)=>{
        console.error('PxerLauncher load file error!');
        this.onerror(err);
    });

};


PxerLauncher.prototype['tagMap'] ={
    js:{
        tag:'script',
        attr:{
            charset:'utf-8',
            type:'text/javascript',
            src:'%PATH%',
        }
    },
    css:{
        tag:'link',
        attr:{
            rel:'stylesheet',
            href:'%PATH%',
        }
    },
    ico:{
        tag:'link',
        attr:{
            rel:'shortcut icon',
            type:'image/x-icon',
            href:'%PATH%',
        }
    },
};