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sfs-utils-0.1.5

Utility functions such as log, js console, etc.

Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta // @require https://update.greasyfork.org/scripts/375360/652240/sfs-utils-015.js 

/* sfs-utils.js v0.1.5 */

// ==UserLibrary==
// @pseudoHeader
// @name        SFS Utils
// @version     0.1.5
// ==/UserLibrary==

// Script must have a version of: 
//
//           // @require     https://raw.githubusercontent.com/SloaneFox/code/master/gm4-polyfill-1.0.1.js
//
// in header to use this module userscript.  Also for use of cmdrepl console function below grant of GM register command is required.

// See below for functions:
//    function log(arguments);  // prints correct line number under GM4, due to scope wrapper the given one is incorrect.
//    function cmdrepl(e,immediate_flag);  //  Launch a js console from any place in the code &/or register one from a menu.
//    function logNewNodes();    // Logs to console any new nodes (uses a mutation observer).
//    var sname;   // Set to GM info's script.name.
//

function logError(msg,e) { console.error("Error,",msg,".  On line:",Elineno(e),"lineno offset:",-log.lineoffset,{Error:e}); }
function typeofObj(unknown_obj){ return ({}).toString.call(unknown_obj).substr(8).slice(0,-1); }
function Elineno(e) { return e.lineNumber-log.lineoffset; }

function objInfo(obj) {

	switch(typeofObj(obj)) {
		
	case "Event": return "Event:"+obj.type+" "+objInfo(obj.target);
	case "Function": return obj.toString().substr(0,200);
	case "String":
	case "Number": return obj;
	default: 		
		var node=obj;
		if(node.jquery) node=node[0];
		if (!node) return "<empty>";
		return (node.tagName||node.nodeName)+" "+(node.id?"#"+node.id:"")
			+(node.className?node.className:"").replace(/\b(?=\w)/g,".");
	}
}

function log() { // Prints lineno of logging not this lineno.   //if (!Plat_Chrome) old_GM_log(t);};
	var args=Array.from(arguments), lineno=parseInt(logStack(0,1))-log.lineoffset, pnewline,
		locator="[ "+lineno +":"+ sname+ " "+( window!=parent? ("wname:"+window.name? window.name:"-") +" @"+location+", rstate: "+document.readyState:"") + " ]\t";
	args.unshift(locator);
	console.log.apply(console, args);
	// In general it is console.log("%c a msg and another %c meggss","float:right","float:left;",anobj,"text","etc");

	function logStack(fileToo, lineno_of_callee) { // deepest first.
		var res="", e=new Error;
		var s=e.stack.split("\n");                        //if (fileToo) res="Stack of callers:\n\t\t"; //+s[1].split("@")[0]+"():\n\t\t"
		if (lineno_of_callee) return (s[2].match(/:\d+(?=:)/)||[""])[0].substr(1); // Just give line number of one who called the function that called this, ie, geives lineno -f callee.
		for (var i=1;i<s.length-1;i++)
			res+=s[i].split("@")[0]+"() "+s[i].split(":").slice(-2)+"\n";
		return !fileToo ? res : {Stack:s[0]+"\n"+res}; 
	}
};

if (log.lineoffset==undefined) { // cos ff58 has linon at 360 + script lineno.
	var ver=0,offset=0,ver_pos=navigator.userAgent.indexOf("Firefox/");
	if (ver_pos!=-1) {
		let v=parseInt(navigator.userAgent.substr(ver_pos+8));
		if (v>=58 && v<60) offset=360; 
		if (v>=60)         offset=492;
	}
	log.lineoffset=offset;
}

function logNewNodes() {
	new MutationObserver((mutations, observer) => {try{
		for (m of mutations) for (n of m.addedNodes) {
			console.log("Node added",n.nodeName,(n.nodeType!=3 ? n : n.textContent.substr(0,40)+"..."));
			if(n.nodeName=="IFRAME") { 
				$(n).removeAttr("sandbox"); 
				n.addEventListener('load', function (e) {console.log("Loaded IFRAME",location,n,"this:",this);});
			}
		}
	}catch(e){console.error("logNewNodes error",e.lineNumber,e);}})
		.observe(document.documentElement, {childList: true,subtree:true});
}

// Call cmdreply to get js console at that point.   Pass reg in to register cmd console as a menu command.
// If cant register cmd, invoke immediately.

var sname= typeof GM != "undefined" ?  GM.info && GM.info.script.name : "noscript name";

async function cmdrepl(e={},immediate,...args) {               // When called from GM menu e is set to event.
	if(!immediate && !cmdrepl.regdone) {          // if (typeof GM_registerMenuCommand!="undefined" && document.body)
		cmdrepl.regdone=true;
		setTimeout(function(){ 
			//console.log("in sfs_utils GM.","abc"+GM_registerMenuCommand);
			GM_registerMenuCommand("JS repl",cmdrepl); GM.registerMenuCommand("JS repl",cmdrepl); // reg in both 
		},2000);
		return;
	}
	ls={}; 
	try { let tmp=localStorage.reply; ls=localStorage; } catch(e){}
	var res=e.message||sname+", enter command:",reply=ls.reply||"cmd";
	while(reply) {
		reply=prompt(res,reply);
		if(!reply) break;
		ls.reply=reply;                   
		try{ res=await eval(reply); console.log(reply,"==>",res);res="==>"+res; } catch(e) {console.log("cmd err",e); cmdrepl(e);}
	}
}