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Improving Javascript style #41

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merged 2 commits into from
Mar 1, 2015
Merged

Improving Javascript style #41

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d9be5e2
Improving JavaScript Style
vandanphadke Mar 1, 2015
9560946
Improving Javascript style
vandanphadke Mar 1, 2015
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229 changes: 115 additions & 114 deletions Source/MindTheWord.js
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Original file line number Diff line number Diff line change
@@ -1,165 +1,166 @@
// Copyright (c) 2011-2015 Bruno Woltzenlogel Paleo. All rights reserved.
// With a little help of these awesome guys, https://github.com/OiWorld/MindTheWord/graphs/contributors!

var sl, tl; // source language and target language
var srcLang, targetLang; // source language and target language

function injectCSS(cssStyle) {
document.styleSheets[0].insertRule("span.mtwTranslatedWord {" + cssStyle + "}", 0);
document.styleSheets[0].insertRule("span.mtwTranslatedWord {" + cssStyle + "}", 0);
}

function injectScript(scriptURL) {
var s = document.createElement("script");
s.setAttribute("src", scriptURL);
document.getElementsByTagName("head")[0].appendChild(s);
var s = document.createElement("script");
s.setAttribute("src", scriptURL);
document.getElementsByTagName("head")[0].appendChild(s);
}

function requestTranslations(sourceWords, callback) {
chrome.runtime.sendMessage({wordsToBeTranslated : sourceWords }, function(response) {
callback(response.translationMap);
});
chrome.runtime.sendMessage({wordsToBeTranslated : sourceWords }, function(response) {
callback(response.translationMap);
});
}

function deepHTMLReplacement(node, tMap, iTMap){
var badTags = ['TEXTAREA', 'INPUT', 'SCRIPT', 'CODE', 'A'];
if (node.nodeType == Node.TEXT_NODE) {
var newNodeValue = replaceAll(node.nodeValue, tMap);
if (newNodeValue != node.nodeValue) {
node.nodeValue = newNodeValue;
var parent = node.parentNode;
parent.innerHTML = replaceAll(parent.innerHTML, iTMap);
var badTags = ['TEXTAREA', 'INPUT', 'SCRIPT', 'CODE', 'A'];
if (node.nodeType == Node.TEXT_NODE) {
var newNodeValue = replaceAll(node.nodeValue, tMap);
if (newNodeValue != node.nodeValue) {
node.nodeValue = newNodeValue;
var parent = node.parentNode;
parent.innerHTML = replaceAll(parent.innerHTML, iTMap);
}
}
} else if (node.nodeType == Node.ELEMENT_NODE && !!badTags.indexOf(node.tagName)) {
var child = node.firstChild;
while (child){
deepHTMLReplacement(child,tMap,iTMap);
child = child.nextSibling;
else if (node.nodeType == Node.ELEMENT_NODE && !!badTags.indexOf(node.tagName)) {
var child = node.firstChild;
while (child){
deepHTMLReplacement(child,tMap,iTMap);
child = child.nextSibling;
}
}
}
}
}

// http://stackoverflow.com/questions/3446170/escape-string-for-use-in-javascript-regex
function escapeRegExp(str) {
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
}

// ToDo: This should be improved. The use of spaces is an ugly hack.
function replaceAll(text, translationMap) {
var rExp = "";
for (var sourceWord in translationMap) {
rExp += "(\\s" + escapeRegExp(sourceWord) + "\\s)|";
}
rExp = rExp.substring(0,rExp.length - 1);
var regExp = new RegExp(rExp,"gm");
var newText = text.replace(regExp, function (m) {
var rExp = "";
for (var sourceWord in translationMap) {
rExp += "(\\s" + escapeRegExp(sourceWord) + "\\s)|";
}
rExp = rExp.substring(0,rExp.length - 1);
var regExp = new RegExp(rExp,"gm");
var newText = text.replace(regExp, function (m) {

if (translationMap[m.substring(1, m.length - 1)] !== null) {
return " " + translationMap[m.substring(1,m.length - 1)] + " ";
return " " + translationMap[m.substring(1,m.length - 1)] + " ";
}
else {
return " " + m + " ";
return " " + m + " ";
}
});

return newText;
}

function invertMap(map) {
var iMap = {};
var swapJs = "javascript:__mindtheword.toggleElement(this)";
for (e in map) {
iMap[map[e]] = '<span data-sl="'+ sl +'" data-tl="'+ tl +'" data-query="'+ e +
'" data-original="' + e + '" data-translated="' + map[e] +
'" class="mtwTranslatedWord" onClick="' + swapJs + '">' + map[e] + '</span>';
}
return iMap;
var iMap = {};
var swapJs = "javascript:__mindtheword.toggleElement(this)";
for (e in map) {
iMap[map[e]] = '<span data-sl="'+ srcLang +'" data-tl="'+ targetLang +'" data-query="'+ e +
'" data-original="' + e + '" data-translated="' + map[e] +
'" class="mtwTranslatedWord" onClick="' + swapJs + '">' + map[e] + '</span>';
}
return iMap;
}


function containsIllegalCharacters(s) { return /[0-9{}.,;:]/.test(s); }

function processTranslations(translationMap, userDefinedTMap) {
var filteredTMap = {};
for (w in translationMap) {
if (w != translationMap[w] && translationMap[w] != "" && !userDefinedTMap[w] && !containsIllegalCharacters(translationMap[w])) {
filteredTMap[w] = translationMap[w];
var filteredTMap = {};
for (w in translationMap) {
if (w != translationMap[w] && translationMap[w] != "" && !userDefinedTMap[w] && !containsIllegalCharacters(translationMap[w])) {
filteredTMap[w] = translationMap[w];
}
}
}
for (w in userDefinedTMap) {
if (w != userDefinedTMap[w]) {
filteredTMap[w] = userDefinedTMap[w];
for (w in userDefinedTMap) {
if (w != userDefinedTMap[w]) {
filteredTMap[w] = userDefinedTMap[w];
}
}
}
if (length(filteredTMap) != 0) {
paragraphs = document.getElementsByTagName('p');
for (var i=0; i<paragraphs.length; i++) {
deepHTMLReplacement(paragraphs[i], filteredTMap, invertMap(filteredTMap));
if (length(filteredTMap) != 0) {
paragraphs = document.getElementsByTagName('p');
for (var i=0; i<paragraphs.length; i++) {
deepHTMLReplacement(paragraphs[i], filteredTMap, invertMap(filteredTMap));
}
}
}
}

function length(obj) {
return Object.keys(obj).length;
return Object.keys(obj).length;
}

function filterSourceWords(countedWords, translationProbability, minimumSourceWordLength, userBlacklistedWords) {
var userBlacklistedWords = new RegExp(userBlacklistedWords);
var userBlacklistedWords = new RegExp(userBlacklistedWords);

var countedWordsList = shuffle(toList(countedWords, function(word, count) {
return !!word && word.length >= minimumSourceWordLength && // no words that are too short
word != "" && !/\d/.test(word) && // no empty words
word.charAt(0) != word.charAt(0).toUpperCase() && // no proper nouns
!userBlacklistedWords.test(word.toLowerCase()); // no blacklisted words
}));
var countedWordsList = shuffle(toList(countedWords, function(word, count) {
return !!word && word.length >= minimumSourceWordLength && // no words that are too short
word != "" && !/\d/.test(word) && // no empty words
word.charAt(0) != word.charAt(0).toUpperCase() && // no proper nouns
!userBlacklistedWords.test(word.toLowerCase()); // no blacklisted words
}));

var targetLength = Math.floor((countedWordsList.length * translationProbability) / 100);
return toMap(countedWordsList.slice(0, targetLength - 1));
var targetLength = Math.floor((countedWordsList.length * translationProbability) / 100);
return toMap(countedWordsList.slice(0, targetLength - 1));
}

function toList(map, filter) {
var list = [];
for (var item in map) {
if (filter(item, map[item])) {
list.push(item);
var list = [];
for (var item in map) {
if (filter(item, map[item])) {
list.push(item);
}
}
}
return list;
return list;
}

function toMap(list) {
var map = {};
for (var i=0; i<list.length; i++) {
map[list[i]] = 1;
}
return map;
var map = {};
for (var i=0; i<list.length; i++) {
map[list[i]] = 1;
}
return map;
}

function shuffle(o) {
for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
}

function getAllWords(ngramMin,ngramMax) {
console.log("getAllWords: ngramMin = " + ngramMin + "; ngramMax = " + ngramMax);
var countedWords = {};
paragraphs = document.getElementsByTagName('p');
console.log("Getting words from all "+paragraphs.length+" paragraphs");
for (var i=0; i<paragraphs.length; i++) {
var words = paragraphs[i].innerText.split(/\s|,|[.()]|\d/g);
for (var j=0; j<words.length; j++) {
for (var b=ngramMin; b <= ngramMax; b++) {
var word = ngramAt(words, j, b);
if (!(word in countedWords)) {
countedWords[word] = 0;
console.log("getAllWords: ngramMin = " + ngramMin + "; ngramMax = " + ngramMax);
var countedWords = {};
paragraphs = document.getElementsByTagName('p');
console.log("Getting words from all "+paragraphs.length+" paragraphs");
for (var i=0; i<paragraphs.length; i++) {
var words = paragraphs[i].innerText.split(/\s|,|[.()]|\d/g);
for (var j=0; j<words.length; j++) {
for (var b=ngramMin; b <= ngramMax; b++) {
var word = ngramAt(words, j, b);
if (!(word in countedWords)) {
countedWords[word] = 0;
}
countedWords[word] += 1;
}
}
countedWords[word] += 1;
}
}
}
return countedWords;
return countedWords;
}

function ngramAt(list, index, n) {
return list.slice(index, index+n).join(" ");
return list.slice(index, index+n).join(" ");
}

__mindtheword = new function() {
Expand All @@ -172,41 +173,41 @@ __mindtheword = new function() {
word.innerHTML = (this.translated) ? word.dataset.translated: word.dataset.original;
}
};
this.isTranslated = function() {
return this.translated;
this.isTranslated = function() {
return this.translated;
};
};

function main(ngramMin, ngramMax, translationProbability, minimumSourceWordLength, userDefinedTranslations, userBlacklistedWords) {
console.log('starting translation');
var countedWords = getAllWords(ngramMin, ngramMax);
console.log(countedWords);
requestTranslations(filterSourceWords(countedWords, translationProbability, minimumSourceWordLength, userBlacklistedWords),
console.log('starting translation');
var countedWords = getAllWords(ngramMin, ngramMax);
console.log(countedWords);
requestTranslations(filterSourceWords(countedWords, translationProbability, minimumSourceWordLength, userBlacklistedWords),
function(tMap) {processTranslations(tMap, userDefinedTranslations);});
}

console.log("mindTheWord running");
chrome.runtime.sendMessage({getOptions : "Give me the options chosen by the user..." }, function(r) {
console.log("Options received: \n" +
console.log("Options received: \n" +
" activation: " + r.activation + "\n" +
" ngramMin: " + r.ngramMin + "\n" +
" ngramMax: " + r.ngramMax );


var blacklist = new RegExp(r.blacklist);
if (!!r.activation && !blacklist.test(document.URL)) {
sl = r.sourceLanguage;
tl = r.targetLanguage;
injectScript(r.script);
injectCSS(r.translatedWordStyle);
var blacklist = new RegExp(r.blacklist);
if (!!r.activation && !blacklist.test(document.URL)) {
srcLang = r.sourceLanguage;
targetLang = r.targetLanguage;
injectScript(r.script);
injectCSS(r.translatedWordStyle);

chrome.runtime.sendMessage({runMindTheWord: "Execute!"}, function(){
main(parseInt(r.ngramMin),
parseInt(r.ngramMax),
r.translationProbability,
r.minimumSourceWordLength,
JSON.parse(r.userDefinedTranslations),
r.userBlacklistedWords);
})
}
main(parseInt(r.ngramMin),
parseInt(r.ngramMax),
r.translationProbability,
r.minimumSourceWordLength,
JSON.parse(r.userDefinedTranslations),
r.userBlacklistedWords);
})
}
});
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