/*
GreaseMonkey userscript for showing prices in various currencies.
To modify the currencies list, update the kofCurrencies object;
Works on various Amazon shops and on many other sites - try to
add your favorite online stores.
Exchange rates provided by Yahoo @ www.yahoo.com
New to GreaseMonkey? <URL: http://greasemonkey.mozdev.org/ >
2005-04-17 Carl Henrik Lunde chlunde+greasemonkey <at> ping.uio.no
Modified:
2005-08-07 Ori Avtalion oavtal <at> bezeqint.net
Modified:
2005-08-17 (David *)Frenkiel dfl <at> beitar-jerusalem.org.il
*/
// ==UserScript==
// @name AmAmaAmazon
// @namespace http:/www.beitar-jerusalem.org.il/
// @description Show prices in various currencies, on Amazon and many other sites.
// @include http://www.amazon.*/*
// @include http://*barnesandnoble*/*
// @include http://amazon.*/*
// @include http://*wallashops*/*
// @include http://*zap.co.il/*
// ==/UserScript==
// Customize to fit:
var kofSiteCurrency = "USD";
var kofSiteCurrencySymbol = "\$";
var kofCurrencies = {
ILS: {name: unescape("%u20AA"), rates: {}, used: false, when: '' },
CHF: {name: "CHF", rates: {}, used: false, when: ''},
GBP: {name: unescape("%A3"), rates: {}, used: false, when: ''},
EUR: {name: "€", rates: {}, used: false, when: ''},
USD: {name: "$", rates: {}, used: false, when: '' },
JPY: {name: "Yen", rates: {}, used: false, when: '' },
PLN: {name: "Zloti", rates: {}, used: false, when: '' },
DKK: {name: "DK", rates: {}, used: false, when: '' } };
var kofPrefs = { tax: 0, folded: 0, x: 10, y: 10 }
var kofRequests = new Array;
var rate;
var gmKey = 'amznKofif1';
var undefined;
kofTrace = function () {
return;
var str = '';
for (var i = 0; i < arguments.length; i++) {
str += arguments[i];
str += ' ';
}
str += '\n';
if (GM_log)
GM_log(str);
else if (dump)
dump(str);
}
kofGetValue = function(key, def) {
var ret = '';
if (undefined == def)
def = '';
try {
ret = GM_getValue(key);
if (ret == undefined)
ret = def;
}
catch(e) {
kofTrace("exception in kofGetValue", e.message);
ret = def;
}
return ret;
}
kofSetValue = function(key, val) {
try {
ret = GM_setValue(key, val);
kofTrace("set value of key", key, "to", val);
}
catch(e) {
kofTrace("exception in kofSetValue", e.message);
}
}
function kofGetScroll() {
var ret = new Object;
if (typeof(window.pageYOffset) != 'undefined') {
ret.offsetTop = window.pageYOffset;
ret.offsetLeft = window.pageXOffset;
}
else if (document.documentElement && (typeof(document.documentElement.scrollTop) != 'undefined')) {
ret.offsetLeft = document.documentElement.scrollLeft;
ret.offsetTop = document.documentElement.scrollTop;
}
else if (document.body && (typeof(document.body.scrollTop) != 'undefined')) { // other Explorers
ret.offsetLeft = document.body.scrollLeft;
ret.offsetTop = document.body.scrollTop;
}
else {
ret.offsetLeft = 0;
ret.offsetTop = 0;
}
return ret;
}
kofAddStyle = function(css) {
var head, style;
head = document.getElementsByTagName('head')[0];
if (!head) { return; }
style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = css;
head.appendChild(style);
}
function kofGetCurrencyData(cFrom, cTo) {
kofOnCurrencyLoaded.currencyTo = cTo;
kofOnCurrencyLoaded.currencyFrom = cFrom;
//http://finance.yahoo.com/d/quotes.csv?s=EURCHF=X&f=l1&e=.csv
var url = "http://finance.yahoo.com/d/quotes.csv?s=" + cFrom + cTo + "=X&f=l1&e=.csv";
// kofTrace("accessing url", url);
GM_xmlhttpRequest({
method: "GET",
url: url,
onload: kofOnCurrencyLoaded,
onerror: kofOnCurrencyError
});
}
function kofOnCurrencyError(responseDetails) {
alert("Error fetching currency data");
}
function kofOnCurrencyLoaded(responseDetails) {
rate = responseDetails.responseText;
var cTo = arguments.callee.currencyTo;
var cFrom = arguments.callee.currencyFrom
var rec = kofCurrencies[cTo];
rec.rates[cFrom] = rate;
rec.when = kofGetToday();
kofProcessNextRequest();
}
kofGetToday = function() {
var today = new Date();
var s = today.getDate() + "/" + today.getMonth() + "/" + today.getFullYear();
return s;
}
// Convert desired currency
function kofConvertCurrency() {
// kofTrace("running kofConvertCurrency");
kofTax = document.getElementById("MaorTax").value;
if (kofTax != kofPrefs.tax) {
kofPrefs.tax = kofTax;
kofWritePrefs();
}
if (kofTax != '' && (! isNaN(kofTax))) {
kofTax = parseFloat(kofTax);
kofTax = (100.0 + kofTax) / 100;
}
else {
kofTax = 1;
}
var elnames = new Array("td", "font", "b", "span");
for (elname in elnames) {
var elems = window.document.getElementsByTagName(elnames[elname]);
// kofTrace("found", elems.length, "elements of type", elname);
for (i = 0; i < elems.length; ++i) {
var price = elems[i];
try {
kofUpdatePrices(price);
}
catch(e) {}
}
}
}
kofUpdatePrices = function(elem) {
if (elem.className == "MaorRate")
return;
var price;
if (elem.kofPrice) {
price = elem.kofPrice;
}
else {
var idx = elem.innerHTML.indexOf(kofSiteCurrencySymbol);
// kofTrace("currency", kofSiteCurrencySymbol, "found at index", idx);
if (idx != -1 /*&& idx < 3*/ && elem.innerHTML.length < 32) {
var str = kofLocatePrice(elem.innerHTML, idx);
// str = str.replace(/[^0-9\.]/, '');
price = parseFloat(str);
// kofTrace("found element", elem.innerHTML, "string", str, "price", price);
}
else {
if (idx >- 0) {
// kofTrace("skipping element", elem.innerHTML.length);
}
}
}
if (elem.kofRates) {
elem.removeChild(elem.kofRates);
elem.kofRates = null;
}
if (price) {
elem.kofPrice = price;
// kofTrace("found price", price);
var rec, newprice, arr = new Array;
for (var key in kofCurrencies) {
rec = kofCurrencies[key];
if ((key != kofSiteCurrency) && rec && rec.used && rec.rates[kofSiteCurrency]) {
// kofTrace("trying to convert price", price);
newprice = Math.round(price * rec.rates[kofSiteCurrency] * kofTax);
arr.push(String(newprice) + ' ' + rec.name);
}
else {
// kofTrace("skipped element");
}
}
if (arr.length) {
elem.kofRates = window.document.createElement("SPAN");
elem.kofRates.className = "MaorRate";
elem.kofRates.innerHTML = '(' + arr.join(',') + ')';
elem.appendChild(elem.kofRates);
}
}
}
kofLocatePrice = function(str, idx) {
var ret = '';
var i;
var ch;
var len = str.length;
var idxf = -1, idxb = -1;
for (i = idx + 1; i < len; i++) {
ch = str.charAt(i);
if (ch >= '0' && ch <= '9') {
idxf = i;
break;
}
}
for (i = idx - 1; i >= 0; i--) {
ch = str.charAt(i);
if (ch >= '0' && ch <= '9') {
idxb = i;
break;
}
}
var d1 = Math.abs(idx - idxf), d2 = Math.abs(idx - idxb);
if (idxf >= 0 && (idxb < 0 || (d1 < d2)))
ret = str.substring(idx + 1);
else
ret = str.substring(0, idx);
ret = ret.replace(/([0-9])[ - ]+([0-9])/g, '$1 $2');
ret = ret.replace(/([0-9]),([0-9][0-9][^0-9])/g, '$1\.$2');
ret = ret.replace(/([0-9]),([0-9][0-9][0-9])/g, '$1$2');
ret = ret.replace(/[^0-9\. ]/g, '');
return ret;
}
kofWritePrefs = function() {
var cur = kofWriteCurrencies();
var str = '', cookie;
str += kofPrefs.tax + ',' + (kofPrefs.folded ? 1 : 0) + ',' + kofPrefs.x + ',' + kofPrefs.y;
var cookie = str + "@" + cur;
kofSetValue(gmKey, cookie);
}
function kofWriteCurrencies() {
var cookie = '';
try {
var rec;
var arr = [];
var str, arrRates, strRates;
for (var key in kofCurrencies) {
arrRates = [];
rec = kofCurrencies[key];
for (var rate in rec.rates) {
arrRates.push(rate + '=' + rec.rates[rate]);
}
if (arrRates.length)
strRates = arrRates.join('~');
else
strRates = '';
str = key + ',' + rec.when + ',' + strRates + ',' + (rec.used ? 1 : 0);
arr.push(str);
}
cookie = arr.join('|');
// kofTrace("setting key to", cookie);
}
catch (e) {
kofTrace("exception in writecurrency", e.message);
}
return cookie;
}
kofReadPrefs = function() {
var cookie = kofGetValue(gmKey);
kofTrace("read cookie", cookie);
if (cookie.length) {
var arr = cookie.split('@');
if (arr.length == 2) {
var rec = arr[0];
kofReadCurrencies(arr[1]);
arr = arr[0].split(',');
kofPrefs.tax = arr[0] ? parseFloat(arr[0]): 0;
kofPrefs.folded = parseFloat(arr[1]) ? 1 : 0;
kofTrace("found folded value", kofPrefs.folded);
kofPrefs.x = parseFloat(arr[2]) ? parseFloat(arr[2]): 10;
kofPrefs.y = parseFloat(arr[3]) ? parseFloat(arr[3]): 10;
}
}
}
function kofReadCurrencies(cookie) {
try {
if (cookie.length) {
var arr = cookie.split('|');
var rec, recarr;
for (var i = 0; i < arr.length; i++) {
recarr = arr[i].split(',');
rec = kofCurrencies[recarr[0]];
if (rec) {
rec.when = recarr[1];
var sRates = recarr[2];
if (sRates.length) {
var arrRates = sRates.split('~');
// kofTrace("found", arrRates.length, "rates in", recarr[0]);
for (var j = 0; j < arrRates.length; j++) {
var oneRate = arrRates[j].split('=');
rec.rates[oneRate[0]] = oneRate[1];
}
}
else {
}
rec.used = Number(recarr[3]);
}
}
}
}
catch (e) {
kofTrace("exception in kofReadCurrencies", e.message);
}
}
function kofReadCurrency(cur) {
var ret = 0;
var rec = kofCurrencies[cur];
if (rec) {
var today = kofGetToday();
if (rec.when == today)
ret = rec.rates[kofSiteCurrency];
if (! ret)
ret = 0;
}
return ret;
}
kofProcessNextRequest = function() {
if (kofRequests.length) {
var name = kofRequests.pop();
kofGetCurrencyData(kofSiteCurrency, name);
}
else {
kofWritePrefs();
kofConvertCurrency();
}
}
function kofProcessPage() {
kofRequests = new Array;
var rec, rate;
for (var key in kofCurrencies) {
if (key != kofSiteCurrency) {
rec = kofCurrencies[key];
if (rec.used) {
// kofTrace("kofProcessPage found used currency", key);
rate = kofReadCurrency(key);
if (rate == 0) {
kofTrace("no rate for currency", key, "pushing request");
kofRequests.push(key);
}
}
}
}
kofProcessNextRequest();
}
kofTogglePanel = function() {
var cont = arguments.callee.cont;
var str;
if (cont.style.display != 'block') {
cont.style.display = 'block';
kofPrefs.folded = false;
}
else {
kofPrefs.folded = true;
cont.style.display = 'none';
}
kofWritePrefs();
}
kofDetectCurrency = function() {
try {
var loc = window.location.host.toLowerCase();
var ind = loc.indexOf(".com");
if (ind == loc.length - 4) {
kofSiteCurrency = "USD";
kofSiteCurrencySymbol = "\$";
}
else if (loc.indexOf(".co.uk") > 0) {
kofSiteCurrency = "GBP";
kofSiteCurrencySymbol = unescape("%A3");
}
else if (loc.indexOf(".de") > 0 || loc.indexOf(".fr") > 0) {
kofSiteCurrency = "EUR";
kofSiteCurrencySymbol = "EUR";
}
else if (loc.indexOf(".co.il" > 0)) {
kofSiteCurrency = "ILS";
kofSiteCurrencySymbol = unescape("%u20AA");
}
}
catch (e) {
kofSiteCurrency = "USD";
kofSiteCurrencySymbol = "\$";
}
// kofTrace("currency", kofSiteCurrencySymbol, kofSiteCurrency);
}
kofRepositionPanel = function() {
var offset = kofGetScroll();
var cont = arguments.callee.cont;
cont.style.top = String(offset.offsetTop + cont.baseTop) + "px";
cont.style.left = String(offset.offsetLeft + cont.baseLeft) + "px";
}
onCurrencyClick = function() {
var rec = kofCurrencies[this.cName];
if (rec) {
rec.used = this.checked;
kofProcessPage();
}
}
kofStartDrag = function(e) {
clearInterval( kofInterval);
kofEndDrag.moved = false;
window.document.addEventListener("mousemove", kofDrag, false);
window.document.addEventListener("mouseup", kofEndDrag, false);
if (e)
e.preventDefault();
}
kofEndDrag = function(e) {
if (e)
e.preventDefault();
window.document.removeEventListener("mousemove", kofDrag, false);
window.document.removeEventListener("mouseup", kofEndDrag, false);
if (arguments.callee.moved) {
var offset = kofGetScroll();
var c = arguments.callee.cont;
var top = parseInt(c.style.top);
var left = parseInt(c.style.left);
c.baseTop = top - offset.offsetTop
c.baseLeft = left - offset.offsetLeft;
kofPrefs.x = c.baseLeft;
kofPrefs.y = c.baseTop;
kofWritePrefs();
}
// kofTrace("top is", top, "left is", left, "new basetop is", c.baseTop, "new baseleft is", c.baseLeft);
kofInterval = setInterval(kofRepositionPanel, 1500);
}
kofDrag = function(e) {
if (typeof e == 'undefined')
e = window.event;
kofEndDrag.moved = true;
// kofTrace("event x", e.clientY, "y", e.clientX);
var c = arguments.callee.cont;
var o = kofGetScroll();
c.style.top = String(e.clientY + o.offsetTop) + "px";
c.style.left = String(e.clientX + o.offsetLeft) + "px";
// kofTrace("moving");
}
kofClickTax = function(e) {
kofProcessPage();
if (e)
e.preventDefault();
}
function kofRevealPanel() {
kofRepositionPanel();
var t = document.getElementById("MaorContent");
t.style.display = kofPrefs.folded ? 'none' : 'block';
kofTrace("setting display of content to", t.style.display);
var c = document.getElementById("Maor");
c.style.visibility = "visible";
kofInterval = setInterval(kofRepositionPanel, 1500);
}
function kofShowPanel() {
var doc = window.document;
kofAddStyle('#Maor { position:absolute; top:10px; left:10px; width: 110px; z-index:10; visibility: hidden;}\
#MaorTB { background-color:#444444; color:#ffffcc; width: 100%; font-size:10px; border:1px solid black; border-bottom:1px solid #AA8855; cursor:pointer;}\
#MaorContent { background-color:#ffee88; border:1px outset #222222; font-size:10px; }\
.MaorCB { width:10px; height:10px;}\
#MaorTitle { float: left; }\
#MaorCloseBox { float: right; text-align:center; color:black; padding:0px 1px 0px 1px; background-color:#ffffff; border:1px solid black; width:15px; font-family:courier; }\
.MaorRate { background-color:#ffff99; }\
#MaorTax { font-size:9px; width:35px; }\
#MaorTaxDiv { padding-left:5px; padding-right:4px; border-bottom:1px solid black; background-color:#ffff77; font-size:10px; }');
var c = doc.createElement("DIV");
c.id = "Maor";
c.baseTop = kofPrefs.y;
c.baseLeft = kofPrefs.x;
var tb = doc.createElement("DIV");
tb.id = "MaorTB";
tb.style.height = 15;
var spn = doc.createElement("DIV");
spn.id = "MaorTitle";
spn.innerHTML = "Kof Money ";
tb.appendChild(spn);
spn.onmousedown = kofStartDrag;
kofDrag.cont = c;
kofEndDrag.cont = c;
kofStartDrag.cont = c;
spn = doc.createElement("SPAN");
spn.id = "MaorCloseBox";
spn.kofText = doc.createTextNode(" X");
spn.appendChild(spn.kofText);
tb.appendChild(spn);
spn.addEventListener("click", kofTogglePanel, true);
c.appendChild(tb);
var tab = doc.createElement("DIV");
tab.id = "MaorContent";
var taxdiv = doc.createElement("DIV");
taxdiv.id = "MaorTaxDiv";
taxdiv.innerHTML = "tax: %<input type='text' maxlength=4 size=3 ID='MaorTax' value='" + kofPrefs.tax + "' />";
var a = doc.createElement("A");
a.href = '#';
a.appendChild(doc.createTextNode("Go " + unescape("%u221A")));
a.addEventListener("click", kofClickTax, false);
taxdiv.appendChild(a);
tab.appendChild(taxdiv);
var rec;
for (var key in kofCurrencies) {
rec = kofCurrencies[key];
var curdiv = doc.createElement("DIV");
var cb = doc.createElement("INPUT");
cb.type = "checkbox";
cb.className = "MaorCB";
cb.onclick = onCurrencyClick;
cb.cName = key;
cb.checked = rec.used;
curdiv.appendChild(cb);
var dd = doc.createElement("SPAN");
dd.innerHTML = rec.name;
curdiv.appendChild(dd);
tab.appendChild(curdiv);
}
c.appendChild(tab);
kofTogglePanel.cont = tab;
tab.indicator = spn;
kofRepositionPanel.cont = c;
var body = doc.getElementsByTagName("BODY")[0];
body.appendChild(c);
// kofTrace("body", body, "maor: ", doc.getElementById("Maor"));
setTimeout(kofRevealPanel, 1500);
}
if (window.document.getElementById("Maor"))
return;
kofReadPrefs();
kofDetectCurrency();
kofShowPanel();
kofProcessPage();
