roll20-character-sheets/DonjonsEtChatons/pug/js/_library.js

function setActiveCharacterId(charId){
    var oldAcid=getActiveCharacterId();
    var ev = new CustomEvent("message");
    ev.data={"id":"0", "type":"setActiveCharacter", "data":charId};
    self.dispatchEvent(ev); 
    return oldAcid;
}

var _sIn=setInterval;
setInterval=function(callback, timeout){
    var acid=getActiveCharacterId();
    _sIn(
        function(){
            var prevAcid=setActiveCharacterId(acid);
            callback();
            setActiveCharacterId(prevAcid);
        }
    ,timeout);
}

var _sto=setTimeout
setTimeout=function(callback, timeout){
    var acid=getActiveCharacterId();
    _sto(
        function(){
            var prevAcid=setActiveCharacterId(acid);
            callback();
            setActiveCharacterId(prevAcid);
        }
    ,timeout);
}

function getAttrsAsync(props){
    var acid=getActiveCharacterId(); //save the current activeCharacterID in case it has changed when the promise runs 
    var prevAcid=null;               //local variable defined here, because it needs to be shared across the promise callbacks defined below
    return new Promise((resolve,reject)=>{
            prevAcid=setActiveCharacterId(acid);  //in case the activeCharacterId has changed, restore it to what we were expecting and save the current value to restore later
            try{
                getAttrs(props,(values)=>{  resolve(values); }); 
            }
            catch{ reject(); }
    }).finally(()=>{
        setActiveCharacterId(prevAcid); //restore activeCharcterId to what it was when the promise first ran
    });
}

//use the same pattern for each of the following...
function setAttrsAsync(propObj, options){
    var acid=getActiveCharacterId(); 
    var prevAcid=null;               
    return new Promise((resolve,reject)=>{
            prevAcid=setActiveCharacterId(acid);  
            try{
                setAttrs(propObj,options,(values)=>{ resolve(values); });
            }
            catch{ reject(); }
    }).finally(()=>{
        setActiveCharacterId(prevAcid); 
    });
}