// ==UserScript==
// @name Duolingo input language switcher
// @namespace https://www.duolingo.com/IVrL9
// @author T1mL3arn
// @match https://www.duolingo.com/*
// @match https://www.example.com/*
// @match https://example.com/*
// @version 1.1.3
// @description This script allows you to type letters appropriate for current task without changing keyboard's layout
// @run-at document-start
// @grant none
// @license GPLv3
// @homepageURL https://github.com/T1mL3arn/Duolingo-input-language-switcher
// @supportURL https://greasyfork.org/en/scripts/37693-duolingo-input-language-switcher/feedback
// @downloadURL none
// ==/UserScript==//// Generated by Haxe 3.4.7
(function () { "use strict";
var HxOverrides = function() { };
HxOverrides.__name__ = true;
HxOverrides.substr = function(s,pos,len) {
	if(len == null) {
		len = s.length;
	} else if(len < 0) {
		if(pos == 0) {
			len = s.length + len;
		} else {
			return "";
		}
	}
	return s.substr(pos,len);
};
var Main = function() {
	this.observerTargetSelector = "._1zuqL";
	this.ereg = new RegExp("duolingo\\.com/skill|practice");
	this.isObserved = false;
	var _gthis = this;
	this.document = window.document;
	this.console = { };
	Object.assign(this.console,window.console);
	this.originalTrace = haxe_Log.trace;
	haxe_Log.trace = function(v,i) {
		_gthis.console.log("" + i.className + ":" + i.lineNumber + ":",v);
	};
	this.initLanguages();
	if(this.document.readyState == "interactive" || this.document.readyState == "complete") {
		this.onready();
	} else {
		this.document.addEventListener("DOMContentLoaded",$bind(this,this.onready));
	}
};
Main.__name__ = true;
Main.main = function() {
	new Main();
};
Main.prototype = {
	initLanguages: function() {
		this.keyCodes = ["Backquote","Digit1","Digit2","Digit3","Digit4","Digit5","Digit6","Digit7","Digit8","Digit9","Digit0","Minus","Equal","Backslash","KeyQ","KeyW","KeyE","KeyR","KeyT","KeyY","KeyU","KeyI","KeyO","KeyP","BracketLeft","BracketRight","KeyA","KeyS","KeyD","KeyF","KeyG","KeyH","KeyJ","KeyK","KeyL","Semicolon","Quote","KeyZ","KeyX","KeyC","KeyV","KeyB","KeyN","KeyM","Comma","Period","Slash"];
		this.languages = { };
		this.languages.ru = "ё1234567890-=\\йцукенгшщзхъфывапролджэячсмитьбю.Ё!\"№;%:?*()_+/ЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖЭЯЧСМИТЬБЮ,";
		this.languages.en = "`1234567890-=\\qwertyuiop[]asdfghjkl;'zxcvbnm,./~!@#$%^&*()_+|QWERTYUIOP{}ASDFGHJKL:\"ZXCVBNM<>?";
		var len = this.languages.ru.length;
		var _g = 0;
		var _g1 = Reflect.fields(this.languages);
		while(_g < _g1.length) {
			var f = _g1[_g];
			++_g;
			var act = this.languages[f].length;
			if(act != len) {
				this.console.error("LangString test failed: expected len " + len + "; actual len " + act + "; lang name " + f);
				this.console.error(this.languages[f]);
				return;
			}
			if(act != this.keyCodes.length * 2) {
				this.console.error("KeyCodes and LangString test failed: expected lang string len " + this.keyCodes.length * 2 + "; actual len " + act + "; lang name " + f);
				return;
			}
		}
	}
	,onready: function(e) {
		this.document.removeEventListener("DOMContentLoaded",$bind(this,this.onready));
		this.console.log("Duolingo input switcher inited");
		window.setInterval($bind(this,this.checkPage),1000);
	}
	,checkPage: function() {
		var isThatPage = this.ereg.test(window.location.href);
		if(isThatPage) {
			if(!this.isObserved) {
				this.startObserver();
			}
		}
		if(this.isObserved && (!isThatPage || window.document.querySelector(this.observerTargetSelector) == null)) {
			this.disconnectObserver();
		}
	}
	,startObserver: function(e) {
		var obsTarget = window.document.querySelector(this.observerTargetSelector);
		if(obsTarget == null) {
			this.console.error("There is no Node with selector \"" + this.observerTargetSelector + "\" , so nothing to observe ");
			return;
		}
		this.observer = new MutationObserver($bind(this,this.checkMutation));
		this.observer.observe(obsTarget,{ childList : true, subtree : true, attributes : true});
		this.isObserved = true;
	}
	,disconnectObserver: function() {
		this.isObserved = false;
		if(this.observer == null) {
			return;
		}
		this.observer.disconnect();
	}
	,checkMutation: function(records,obs) {
		this.nativeLanguage = "ru";
		this.foreignLanguage = "en";
		var translationInput = window.document.querySelector("textarea[data-test=challenge-translate-input]");
		if(translationInput != null) {
			var lang = translationInput.getAttribute("lang");
			if(lang == this.nativeLanguage) {
				this.initInput(translationInput,"ru","en");
			} else if(lang == this.foreignLanguage) {
				this.initInput(translationInput,"en","ru");
			}
			return;
		}
		var listenInput = window.document.querySelector("textarea[data-test=challenge-listen-input]");
		if(listenInput != null) {
			this.initInput(listenInput,"en","ru");
			return;
		}
		var nameInput = window.document.querySelector("input[data-test=challenge-name-input]");
		if(nameInput != null) {
			this.initInput(nameInput,"en","ru");
		}
	}
	,initInput: function(input,targetLanguage,sourceLanguage) {
		this.targetLanguage = targetLanguage;
		this.sourceLanguage = sourceLanguage;
		input.addEventListener("keypress",$bind(this,this.onInput));
		input.addEventListener("keydown",$bind(this,this.refocus));
	}
	,refocus: function(e) {
		if(e.keyCode == 13 || e.code == "Enter") {
			e.currentTarget.blur();
		}
	}
	,onInput: function(e) {
		if(e.ctrlKey) {
			return;
		}
		var targetLangStr = this.languages[this.targetLanguage];
		var keyCodeInd = this.keyCodes.indexOf(e.code);
		if(keyCodeInd != -1) {
			var targetChar = e.shiftKey ? targetLangStr.charAt(keyCodeInd + this.keyCodes.length) : targetLangStr.charAt(keyCodeInd);
			var input = e.currentTarget;
			window.setTimeout($bind(this,this.replaceChar),1,input,targetChar,input.selectionStart);
		}
	}
	,replaceChar: function(target,newChar,position) {
		var val = target.value;
		val = val.substring(0,position) + newChar + HxOverrides.substr(val,position + 1,null);
		target.innerText = val;
		target.value = val;
		target.setSelectionRange(position + 1,position + 1);
	}
};
Math.__name__ = true;
var Reflect = function() { };
Reflect.__name__ = true;
Reflect.fields = function(o) {
	var a = [];
	if(o != null) {
		var hasOwnProperty = Object.prototype.hasOwnProperty;
		for( var f in o ) {
		if(f != "__id__" && f != "hx__closures__" && hasOwnProperty.call(o,f)) {
			a.push(f);
		}
		}
	}
	return a;
};
var haxe_Log = function() { };
haxe_Log.__name__ = true;
haxe_Log.trace = function(v,infos) {
	js_Boot.__trace(v,infos);
};
var js_Boot = function() { };
js_Boot.__name__ = true;
js_Boot.__unhtml = function(s) {
	return s.split("&").join("&amp;").split("<").join("&lt;").split(">").join("&gt;");
};
js_Boot.__trace = function(v,i) {
	var msg = i != null ? i.fileName + ":" + i.lineNumber + ": " : "";
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		var _g = 0;
		var _g1 = i.customParams;
		while(_g < _g1.length) {
			var v1 = _g1[_g];
			++_g;
			msg += "," + js_Boot.__string_rec(v1,"");
		}
	}
	var d;
	var tmp;
	if(typeof(document) != "undefined") {
		d = document.getElementById("haxe:trace");
		tmp = d != null;
	} else {
		tmp = false;
	}
	if(tmp) {
		d.innerHTML += js_Boot.__unhtml(msg) + "<br/>";
	} else if(typeof console != "undefined" && console.log != null) {
		console.log(msg);
	}
};
js_Boot.__string_rec = function(o,s) {
	if(o == null) {
		return "null";
	}
	if(s.length >= 5) {
		return "<...>";
	}
	var t = typeof(o);
	if(t == "function" && (o.__name__ || o.__ename__)) {
		t = "object";
	}
	switch(t) {
	case "function":
		return "<function>";
	case "object":
		if(o instanceof Array) {
			if(o.__enum__) {
				if(o.length == 2) {
					return o[0];
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				var str = o[0] + "(";
				s += "\t";
				var _g1 = 2;
				var _g = o.length;
				while(_g1 < _g) {
					var i = _g1++;
					if(i != 2) {
						str += "," + js_Boot.__string_rec(o[i],s);
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						str += js_Boot.__string_rec(o[i],s);
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				return str + ")";
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			if(s2 != "[object Object]") {
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		var k = null;
		var str2 = "{\n";
		s += "\t";
		var hasp = o.hasOwnProperty != null;
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		if(k == "prototype" || k == "__class__" || k == "__super__" || k == "__interfaces__" || k == "__properties__") {
			continue;
		}
		if(str2.length != 2) {
			str2 += ", \n";
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		s = s.substring(1);
		str2 += "\n" + s + "}";
		return str2;
	case "string":
		return o;
	default:
		return String(o);
	}
};
var $_, $fid = 0;
function $bind(o,m) { if( m == null ) return null; if( m.__id__ == null ) m.__id__ = $fid++; var f; if( o.hx__closures__ == null ) o.hx__closures__ = {}; else f = o.hx__closures__[m.__id__]; if( f == null ) { f = function(){ return f.method.apply(f.scope, arguments); }; f.scope = o; f.method = m; o.hx__closures__[m.__id__] = f; } return f; }
String.__name__ = true;
Array.__name__ = true;
Main.main();
})();