Google Translate automatic for the people !

google-translate.js

/**
 * Google Translate automatic for the people !
 * 
 * - visit http://translate.google.com make sure instant translation is on
 * - set source and target languages and open firebug
 * - copy your JSON translation object in (string key/value pairs) :
 *   var input = { "hello.world": "Hello World !", ... };
 * - make sure non of your values to be translated end with '...' !
 * - declare and output object where translations will be stored :
 *   var output = {};
 * - copy the code bellow into firebug (should start translating)
 * - when it stoppes saying "stopped after trying 10 times ..."
 *   you might "restart" it by copying the code in bellow again
 *   (and maybe before doing so clear out the source textarea)
 * - when it says "and we're just about done translating ..." 
 *   all should be done - translations are stored in `output` object
 * - run JSON.stringify(output) in the console and copy JSON string
 * 
 */
(function(input, output) {
    
    var console = window.console || { log: function() { /* NOOP */ } };
    
    // source textarea :
    var source = document.getElementById('source');
    // translation results are printed here :
    var resultBox = document.getElementById('result_box');

    // extract the value to be translated
    function extract(source) {
        if ( ! source ) return null;
        //source = source.trim();
        //source = source.replace(/^\"/, '');
        //source = source.replace(/\"$/, '');
        return source;
    }
    
    // format the translated value
    function format(translated, source) {
        //return ' "' + translated + '"' + ' # ' + source;
        return translated;
    }
    
    var translateAttempts = 0;
    function translate(val, callback) {
        var content = resultBox.textContent;
        source.value = val;
        
        translateAttempts = 0;
        setTimeout(function trackValue() {
            if (translateAttempts++ == 10) {
                console.log('stopped after trying 10 times for for: ', val);
                return;
            }
            var newContent = resultBox.textContent;
            var tNewContent = newContent && newContent.trim();
            if ( content == newContent || ! tNewContent || 
                tNewContent.substring(tNewContent.length - 3) === '...' ) {
                source.value = val;
                setTimeout(trackValue, 300);
            }
            else {
                callback(newContent);
            }
        }, 500);
    }

    var keys = [];
    for ( var k in input ) {
        if ( input.hasOwnProperty(k) ) keys.push(k);
    }
    
    var count = 0;
    var prevVal = null, prevKey = null;
    (function nextKey() {
        var key = keys.shift();
        if (key) {
            
            if (output[key]) {
                setTimeout(nextKey, 1);
                return;                
            }
            
            var eVal = extract( input[key] );
            if (eVal) {
                
                if (prevVal == eVal) {
                    output[key] = output[prevKey];
                    prevKey = key;
                    setTimeout(nextKey, 100);
                    return;
                }
                
                console.log(' translating: ', eVal);
                
                translate(eVal, function(tVal) {
                    
                    console.log(' translated: ', tVal); count++;
                    
                    output[key] = format( tVal, eVal );
                    
                    prevKey = key; prevVal = eVal;
                    setTimeout(nextKey, 1);
                });   
            }
            else {
                output[key] = input[key]; // ""
                prevKey = key; prevVal = null;
                setTimeout(nextKey, 1);
            }
        }
        else {
            console.log("and we're just about done translating " + count + " values ...");
        }
    })(); // nextKey();
    
})( window.input, window.output );