react-number-picker
Version:
Simple React component to pick/select a number. Can be a price selector too, if you specify `currency`.
312 lines (258 loc) • 10.3 kB
JavaScript
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var _react = __webpack_require__(1);
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__webpack_require__(2);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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var NumberPicker = function (_React$Component) {
_inherits(NumberPicker, _React$Component);
function NumberPicker(props) {
_classCallCheck(this, NumberPicker);
var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(NumberPicker).call(this, props));
_this.MAX_VALUE = _this.maxValue();
return _this;
}
_createClass(NumberPicker, [{
key: "maxValue",
value: function maxValue() {
var str_max = "";
for (var i = 0; i < this.props.digits; i++) {
str_max += "9";
}if (this.props.showDecimal) str_max += ".99";
return parseFloat(str_max);
}
}, {
key: "digitInteger",
value: function digitInteger(ltr_digit) {
var sValue = this.props.value.toString();
var a_sValue = sValue.split(".");
var integer = a_sValue[0];
var rtl_digit = this.props.digits - (ltr_digit - 1);
if (rtl_digit > integer.length) return "0";
return integer[integer.length - rtl_digit];
}
}, {
key: "digitDecimal",
value: function digitDecimal(ltr_digit) {
var sValue = this.props.value.toString();
var a_sValue = sValue.split(".");
var decimal = a_sValue.length > 1 && a_sValue[1].length > 0 ? a_sValue[1] : "00";
if (decimal.length > 2) decimal = decimal.substr(0, 2);
if (decimal.length < 2) decimal = decimal + "0";
return decimal[ltr_digit - 1];
}
}, {
key: "modifyValue",
value: function modifyValue(type, value, event) {
event.preventDefault();
if (!this.props.onChange) return;
var value_to_add = type === "down" ? value * -1 : value;
var new_value = this.props.value + value_to_add;
/* adjust float operations */
var str_new_value = this.props.showDecimal ? new_value.toFixed(2) : new_value.toFixed(0);
var adjusted_new_value = parseFloat(str_new_value);
/* dont work with negative values, YET */
if (adjusted_new_value < 0) adjusted_new_value = 0;
/* prevent from exceed maximum possible values */
if (adjusted_new_value > this.MAX_VALUE) adjusted_new_value = this.MAX_VALUE;
this.props.onChange(adjusted_new_value);
}
}, {
key: "renderButtons",
value: function renderButtons(type) {
var elements = [];
/* display an invisible cell */
if (this.props.currency) {
elements.push(_react2.default.createElement("div", { key: "currency", className: "NumberPicker__cell button" }));
}
/* display tob/bottom buttons */
for (var i = 0; i < this.props.digits; i++) {
var value_to_add = Math.pow(10, this.props.digits - i - 1);
elements.push(_react2.default.createElement(
"div",
{ key: "integer-" + i, className: "NumberPicker__cell button " + type },
_react2.default.createElement("span", { className: type, onClick: this.modifyValue.bind(this, type, value_to_add) })
));
}
/* display invisible cell to decimal separator and tob/bottom buttons for decimals */
if (this.props.showDecimal) {
elements.push(_react2.default.createElement("div", { key: "decimal-separator", className: "NumberPicker__cell decimal-separator" }));
elements.push(_react2.default.createElement(
"div",
{ key: "decimal-1", className: "NumberPicker__cell button " + type },
_react2.default.createElement("span", { className: type, onClick: this.modifyValue.bind(this, type, 0.1) })
));
elements.push(_react2.default.createElement(
"div",
{ key: "decimal-2", className: "NumberPicker__cell button " + type },
_react2.default.createElement("span", { className: type, onClick: this.modifyValue.bind(this, type, 0.01) })
));
}
return elements;
}
}, {
key: "renderDigits",
value: function renderDigits() {
var elements = [];
if (this.props.currency) {
elements.push(_react2.default.createElement(
"div",
{ key: "currency", className: "NumberPicker__cell currency" },
_react2.default.createElement(
"span",
{ className: "currency" },
this.props.currency
)
));
}
for (var i = 0; i < this.props.digits; i++) {
var digit = i + 1;
elements.push(_react2.default.createElement(
"div",
{ key: digit, className: "NumberPicker__cell digit" },
_react2.default.createElement(
"span",
{ className: "digit" },
this.digitInteger(digit)
)
));
}
if (this.props.showDecimal) {
elements.push(_react2.default.createElement(
"div",
{ key: "decimal-separator", className: "NumberPicker__cell decimal-separator" },
_react2.default.createElement(
"span",
{ className: "decimal-separator" },
this.props.decimalSeparator
)
));
elements.push(_react2.default.createElement(
"div",
{ key: "decimal-1", className: "NumberPicker__cell digit" },
_react2.default.createElement(
"span",
{ className: "digit" },
this.digitDecimal(1)
)
));
elements.push(_react2.default.createElement(
"div",
{ key: "decimal-2", className: "NumberPicker__cell digit" },
_react2.default.createElement(
"span",
{ className: "digit" },
this.digitDecimal(2)
)
));
}
return elements;
}
}, {
key: "render",
value: function render() {
return _react2.default.createElement(
"div",
{ className: "NumberPicker__wrapper" },
_react2.default.createElement(
"div",
{ className: "NumberPicker__table" },
_react2.default.createElement(
"div",
{ className: "NumberPicker__row" },
this.renderButtons("up")
),
_react2.default.createElement(
"div",
{ className: "NumberPicker__row" },
this.renderDigits()
),
_react2.default.createElement(
"div",
{ className: "NumberPicker__row" },
this.renderButtons("down")
)
)
);
}
}]);
return NumberPicker;
}(_react2.default.Component);
NumberPicker.propTypes = {
onChange: _react2.default.PropTypes.func,
digits: _react2.default.PropTypes.number.isRequired,
currency: _react2.default.PropTypes.string,
value: _react2.default.PropTypes.number.isRequired,
showDecimal: _react2.default.PropTypes.bool.isRequired,
decimalSeparator: _react2.default.PropTypes.string.isRequired
};
NumberPicker.defaultProps = {
digits: 1,
currency: null,
value: 0.00,
decimalSeparator: ".",
showDecimal: false
};
exports.default = NumberPicker;
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