Set current Chromium flags

Set_current_Chromium_flags.js

//PASTE INTO CONSOLE!

//Can be used to check for new and changed flags in updated versions, or in any other version of Chromium.
//From "Get current Chromium flags.js": copy the "finalSetts" array contents and paste between "const setTo=" and the semicolon (and uncomment "const setTo="), or you can download the setter generated by the "Download setter" button.
//Manually set the flags that remain visible after this script is run, then relaunch the browser, then run "Get current Chromium flags.js".

//const setTo=;

function getAncestors(el){
	firstParent=el;
	let ancestors=[el];
	while(!!firstParent && typeof firstParent !=='undefined' && !!firstParent.parentElement && typeof firstParent.parentElement!=='undefined' && firstParent.parentElement.tagName!='BODY' && firstParent.parentElement.tagName!='HEAD' && firstParent.parentElement.tagName!='HTML'){
		firstParent=firstParent.parentElement;
		ancestors.push(firstParent);
	}
	return ancestors;
}

function keepMatchesShadow(els,slcArr,isNodeName){
   if(slcArr[0]===false){
      return els;
   }else{
		let out=[];
		for(let i=0, len=els.length; i<len; i++){
		  let n=els[i];
				for(let k=0, len_k=slcArr.length; k<len_k; k++){
					let sk=slcArr[k];
					if(isNodeName){
						if((n.nodeName.toLocaleLowerCase())===sk){
							out.push(n);
						}
					}else{ //selector
						   if(!!n.matches && typeof n.matches!=='undefined' && n.matches(sk)){
							  out.push(n);
						   }
					}
				}
		}
		return out;
   	}
}

function getMatchingNodesShadow(docm, slc, isNodeName, onlyShadowRoots){
	let slcArr=[];
	if(typeof(slc)==='string'){
		slc=(isNodeName && slc!==false)?(slc.toLocaleLowerCase()):slc;
		slcArr=[slc];
	}else if(typeof(slc[0])!=='undefined'){
		for(let i=0, len=slc.length; i<len; i++){
			let s=slc[i];
			slcArr.push((isNodeName && slc!==false)?(s.toLocaleLowerCase()):s)
		}
	}else{
		slcArr=[slc];
	}
	var shrc=[docm];
	var shrc_l=1;
	var out=[];
	let srCnt=0;

	while(srCnt<shrc_l){
		let curr=shrc[srCnt];
		let sh=(!!curr.shadowRoot && typeof curr.shadowRoot !=='undefined')?true:false;
		let nk=keepMatchesShadow([curr],slcArr,isNodeName);
		let nk_l=nk.length;
		
		if( !onlyShadowRoots && nk_l>0){
			for(let i=0; i<nk_l; i++){
				out.push(nk[i]);
			}
		}
		
		for(let i=0, len=curr.childNodes.length; i<len; i++){
			shrc.push(curr.childNodes[i]);
		}
		
		if(sh){
			   let cs=curr.shadowRoot;
			   let csc=[...cs.childNodes];
			   if(onlyShadowRoots){
				  if(nk_l>0){
				   out.push({root:nk[0], childNodes:csc});
				  }
			   }
				for(let i=0, len=csc.length; i<len; i++){
					shrc.push(csc[i]);
				}
		}

		srCnt++;
		shrc_l=shrc.length;
	}
	
	return out;
}

let slct=getMatchingNodesShadow(document,'SELECT',true,false).filter((s)=>{ let wcs=window.getComputedStyle(s); return (wcs['opacity']!='0' && wcs['display']!=='none' && wcs['visibility']!=='hidden'); });
let ancs=slct.map((s)=>{
	return getAncestors(s);
});
let flgs={};
for(let i=0, len_i=ancs.length; i<len_i; i++){
	let a=ancs[i];
	for(let k=0, len_k=a.length; k<len_k; k++){
		let ak=a[k];
		let lkfs=getMatchingNodesShadow(ak, 'A', true, false).filter((lnk)=>{return (lnk.href.startsWith('chrome://flags/#') && lnk.innerText.startsWith('#'));});
		if(lkfs.length>0){
			let lnk=lkfs[0];
			let lt=lnk.innerText;
			let si=slct[i];
			if(typeof(flgs[lt])==='undefined'){
				flgs[lt]={
					selects:[si],
					value:si.value,
					el:ak
				}
			}else{
				flgs[lt].selects.push(si);
				if(flgs[lt].value!==null){
					if(flgs[lt].value!==si.value){
						flgs[lt].value=null;
					}
				}
			}
			k=len_k-1;
		}
		
	}
}

let inSetNm=setTo.map((st)=>{return st[0];});
let inSetVl=setTo.map((st)=>{return st[1];});
let changelog=[];

for(key in flgs){
	let fk=flgs[key];
	let settIx=inSetNm.indexOf(key);
	let fkv=(fk.value!==null)?fk.value.trim().toLocaleLowerCase():fk.value;
	let fkl=fk.el;
	if(settIx>=0){
		let sv=(inSetVl[settIx]!==null)?inSetVl[settIx].trim().toLocaleLowerCase():inSetVl[settIx];
		if(fkv!==null && sv===fkv){
			fkl.style.setProperty('display','none','important');
		}else if(sv!==null){
			for (let m=0, len1=fk.selects.length; m<len1; m++){
				let fks=fk.selects[m];
				let opt=[];
				opt=fks.options;
				opt=[...opt];
			for (let j=0, len2=opt.length; j<len2; j++){
				if(opt[j].value.trim().toLocaleLowerCase()===sv){
					changelog.push(key+': '+fk.value+' -> '+inSetVl[settIx]);
					fks.selectedIndex=j;
					fks.dispatchEvent(new Event('change'));
					//HIDE FLAGS NOW SET ACCORDING TO 'setTo' ARRAY; MANUALLY CHECK REMAINING (STILL VISIBLE) FLAGS
					fkl.style.setProperty('display','none','important');
					j=opt.length-1; //EARLY TERMINATE
				}
			}
			}
		}
	}
}

console.group('Changelog');
console.log(changelog);
console.groupEnd();