(function ($) {
"use strict";
if (!$.browser) {
$.browser = {};
$.browser.mozilla = /mozilla/.test(navigator.userAgent.toLowerCase()) && !/webkit/.test(navigator.userAgent.toLowerCase());
$.browser.webkit = /webkit/.test(navigator.userAgent.toLowerCase());
$.browser.opera = /opera/.test(navigator.userAgent.toLowerCase());
$.browser.msie = /msie/.test(navigator.userAgent.toLowerCase());
}
var methods = {
destroy : function () {
$(this).unbind(".maskMoney");
if ($.browser.msie) {
this.onpaste = null;
}
return this;
},
mask : function (value) {
return this.each(function () {
var $this = $(this);
if (typeof value === "number") {
$this.val(value);
}
return $this.trigger("mask");
});
},
unmasked : function () {
return this.map(function () {
var value = ($(this).val() || "0"),
isNegative = value.indexOf("-") !== -1,
decimalPart;
// get the last position of the array that is a number(coercion makes "" to be evaluated as false)
$(value.split(/\D/).reverse()).each(function (index, element) {
if(element) {
decimalPart = element;
return false;
}
});
value = value.replace(/\D/g, "");
value = value.replace(new RegExp(decimalPart + "$"), "." + decimalPart);
if (isNegative) {
value = "-" + value;
}
return parseFloat(value);
});
},
init : function (parameters) {
parameters = $.extend({
prefix: "",
suffix: "",
affixesStay: true,
thousands: ",",
decimal: ".",
precision: 2,
allowZero: false,
allowNegative: false
}, parameters);
return this.each(function () {
var $input = $(this), settings,
onFocusValue;
// data-* api
settings = $.extend({}, parameters);
settings = $.extend(settings, $input.data());
function getInputSelection() {
var el = $input.get(0),
start = 0,
end = 0,
normalizedValue,
range,
textInputRange,
len,
endRange;
if (typeof el.selectionStart === "number" && typeof el.selectionEnd === "number") {
start = el.selectionStart;
end = el.selectionEnd;
} else {
range = document.selection.createRange();
if (range && range.parentElement() === el) {
len = el.value.length;
normalizedValue = el.value.replace(/\r\n/g, "\n");
// Create a working TextRange that lives only in the input
textInputRange = el.createTextRange();
textInputRange.moveToBookmark(range.getBookmark());
// Check if the start and end of the selection are at the very end
// of the input, since moveStart/moveEnd doesn't return what we want
// in those cases
endRange = el.createTextRange();
endRange.collapse(false);
if (textInputRange.compareEndPoints("StartToEnd", endRange) > -1) {
start = end = len;
} else {
start = -textInputRange.moveStart("character", -len);
start += normalizedValue.slice(0, start).split("\n").length - 1;
if (textInputRange.compareEndPoints("EndToEnd", endRange) > -1) {
end = len;
} else {
end = -textInputRange.moveEnd("character", -len);
end += normalizedValue.slice(0, end).split("\n").length - 1;
}
}
}
}
return {
start: start,
end: end
};
} // getInputSelection
function canInputMoreNumbers() {
var haventReachedMaxLength = !($input.val().length >= $input.attr("maxlength") && $input.attr("maxlength") >= 0),
selection = getInputSelection(),
start = selection.start,
end = selection.end,
haveNumberSelected = (selection.start !== selection.end && $input.val().substring(start, end).match(/\d/)) ? true : false,
startWithZero = ($input.val().substring(0, 1) === "0");
return haventReachedMaxLength || haveNumberSelected || startWithZero;
}
function setCursorPosition(pos) {
$input.each(function (index, elem) {
if (elem.setSelectionRange) {
elem.focus();
elem.setSelectionRange(pos, pos);
} else if (elem.createTextRange) {
var range = elem.createTextRange();
range.collapse(true);
range.moveEnd("character", pos);
range.moveStart("character", pos);
range.select();
}
});
}
function setSymbol(value) {
var operator = "";
if (value.indexOf("-") > -1) {
value = value.replace("-", "");
operator = "-";
}
return operator + settings.prefix + value + settings.suffix;
}
function maskValue(value) {
var negative = (value.indexOf("-") > -1 && settings.allowNegative) ? "-" : "",
onlyNumbers = value.replace(/[^0-9]/g, ""),
integerPart = onlyNumbers.slice(0, onlyNumbers.length - settings.precision),
newValue,
decimalPart,
leadingZeros;
// remove initial zeros
integerPart = integerPart.replace(/^0*/g, "");
// put settings.thousands every 3 chars
integerPart = integerPart.replace(/\B(?=(\d{3})+(?!\d))/g, settings.thousands);
if (integerPart === "") {
integerPart = "0";
}
newValue = negative + integerPart;
if (settings.precision > 0) {
decimalPart = onlyNumbers.slice(onlyNumbers.length - settings.precision);
leadingZeros = new Array((settings.precision + 1) - decimalPart.length).join(0);
newValue += settings.decimal + leadingZeros + decimalPart;
}
return setSymbol(newValue);
}
function maskAndPosition(startPos) {
var originalLen = $input.val().length,
newLen;
$input.val(maskValue($input.val()));
newLen = $input.val().length;
startPos = startPos - (originalLen - newLen);
setCursorPosition(startPos);
}
function mask() {
var value = $input.val();
if (settings.precision > 0 && value.indexOf(settings.decimal) < 0) {
value += settings.decimal + new Array(settings.precision+1).join(0);
}
$input.val(maskValue(value));
}
function changeSign() {
var inputValue = $input.val();
if (settings.allowNegative) {
if (inputValue !== "" && inputValue.charAt(0) === "-") {
return inputValue.replace("-", "");
} else {
return "-" + inputValue;
}
} else {
return inputValue;
}
}
function preventDefault(e) {
if (e.preventDefault) { //standard browsers
e.preventDefault();
} else { // old internet explorer
e.returnValue = false;
}
}
function keypressEvent(e) {
e = e || window.event;
var key = e.which || e.charCode || e.keyCode,
keyPressedChar,
selection,
startPos,
endPos,
value;
//added to handle an IE "special" event
if (key === undefined) {
return false;
}
// any key except the numbers 0-9
if (key < 48 || key > 57) {
// -(minus) key
if (key === 45) {
$input.val(changeSign());
return false;
// +(plus) key
} else if (key === 43) {
$input.val($input.val().replace("-", ""));
return false;
// enter key or tab key
} else if (key === 13 || key === 9) {
return true;
} else if ($.browser.mozilla && (key === 37 || key === 39) && e.charCode === 0) {
// needed for left arrow key or right arrow key with firefox
// the charCode part is to avoid allowing "%"(e.charCode 0, e.keyCode 37)
return true;
} else { // any other key with keycode less than 48 and greater than 57
preventDefault(e);
return true;
}
} else if (!canInputMoreNumbers()) {
return false;
} else {
preventDefault(e);
keyPressedChar = String.fromCharCode(key);
selection = getInputSelection();
startPos = selection.start;
endPos = selection.end;
value = $input.val();
$input.val(value.substring(0, startPos) + keyPressedChar + value.substring(endPos, value.length));
maskAndPosition(startPos + 1);
return false;
}
}
function keydownEvent(e) {
e = e || window.event;
var key = e.which || e.charCode || e.keyCode,
selection,
startPos,
endPos,
value,
lastNumber;
//needed to handle an IE "special" event
if (key === undefined) {
return false;
}
selection = getInputSelection();
startPos = selection.start;
endPos = selection.end;
if (key === 8 || key === 46 || key === 63272) { // backspace or delete key (with special case for safari)
preventDefault(e);
value = $input.val();
// not a selection
if (startPos === endPos) {
// backspace
if (key === 8) {
if (settings.suffix === "") {
startPos -= 1;
} else {
// needed to find the position of the last number to be erased
lastNumber = value.split("").reverse().join("").search(/\d/);
startPos = value.length - lastNumber - 1;
endPos = startPos + 1;
}
//delete
} else {
endPos += 1;
}
}
$input.val(value.substring(0, startPos) + value.substring(endPos, value.length));
maskAndPosition(startPos);
return false;
} else if (key === 9) { // tab key
return true;
} else { // any other key
return true;
}
}
function focusEvent() {
onFocusValue = $input.val();
mask();
var input = $input.get(0),
textRange;
if (input.createTextRange) {
textRange = input.createTextRange();
textRange.collapse(false); // set the cursor at the end of the input
textRange.select();
}
}
function cutPasteEvent() {
setTimeout(function() {
mask();
}, 0);
}
function getDefaultMask() {
var n = parseFloat("0") / Math.pow(10, settings.precision);
return (n.toFixed(settings.precision)).replace(new RegExp("\\.", "g"), settings.decimal);
}
function blurEvent(e) {
if ($.browser.msie) {
keypressEvent(e);
}
if ($input.val() === "" || $input.val() === setSymbol(getDefaultMask())) {
if (!settings.allowZero) {
$input.val("");
} else if (!settings.affixesStay) {
$input.val(getDefaultMask());
} else {
$input.val(setSymbol(getDefaultMask()));
}
} else {
if (!settings.affixesStay) {
var newValue = $input.val().replace(settings.prefix, "").replace(settings.suffix, "");
$input.val(newValue);
}
}
if ($input.val() !== onFocusValue) {
$input.change();
}
}
function clickEvent() {
var input = $input.get(0),
length;
if (input.setSelectionRange) {
length = $input.val().length;
input.setSelectionRange(length, length);
} else {
$input.val($input.val());
}
}
$input.unbind(".maskMoney");
$input.bind("keypress.maskMoney", keypressEvent);
$input.bind("keydown.maskMoney", keydownEvent);
$input.bind("blur.maskMoney", blurEvent);
$input.bind("focus.maskMoney", focusEvent);
$input.bind("click.maskMoney", clickEvent);
$input.bind("cut.maskMoney", cutPasteEvent);
$input.bind("paste.maskMoney", cutPasteEvent);
$input.bind("mask.maskMoney", mask);
});
}
};
$.fn.maskMoney = function (method) {
if (methods[method]) {
return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
} else if (typeof method === "object" || ! method) {
return methods.init.apply(this, arguments);
} else {
$.error("Method " + method + " does not exist on jQuery.maskMoney");
}
};
})(window.jQuery || window.Zepto);