@devshack/react-circular-input
Version:
React components for easily composing a circular range input
117 lines • 5.31 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __rest = (this && this.__rest) || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function")
for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)
t[p[i]] = s[p[i]];
return t;
};
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
result["default"] = mod;
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
var react_1 = __importStar(require("react"));
var utils_1 = require("./utils");
var CircularInputContext_1 = require("./CircularInputContext");
var CircularTrack_1 = require("./CircularTrack");
var CircularProgress_1 = require("./CircularProgress");
var CircularThumb_1 = require("./CircularThumb");
function CircularInput(_a) {
var _b = _a.value, value = _b === void 0 ? 0.25 : _b, _c = _a.radius, radius = _c === void 0 ? 100 : _c, onChange = _a.onChange, children = _a.children, props = __rest(_a, ["value", "radius", "onChange", "children"]);
var containerRef = react_1.useRef(null);
var size = radius * 2;
var center = { x: radius, y: radius };
// Accessibility
var _d = react_1.useState(false), isFocused = _d[0], setFocused = _d[1];
var isReadonly = !onChange;
var handleFocus = react_1.useCallback(function () {
setFocused(true);
}, []);
var handleBlur = react_1.useCallback(function () {
setFocused(false);
}, []);
var handleKeyDown = react_1.useCallback(function (e) {
if (!isFocused)
return;
var keyCode = e.keyCode;
// arrow up, arrow right, page up, space
var isIncrement = keyCode === 38 || keyCode === 39 || keyCode === 33 || keyCode === 32;
// arrow down, arrow left, page down
var isDecrement = keyCode === 40 || keyCode === 37 || keyCode === 34;
if (isIncrement) {
onChange(Math.min(1, value + 0.1));
}
if (isDecrement) {
onChange(Math.max(0, value - 0.1));
}
if (isIncrement || isDecrement) {
e.preventDefault();
}
}, [isFocused, onChange, value]);
var accessibilityProps = {
tabIndex: 0,
role: 'slider',
onFocus: handleFocus,
onBlur: handleBlur,
onKeyDown: handleKeyDown,
};
// Geometry utilities
var getPointFromValue = react_1.useCallback(function (v) {
return utils_1.polarToCartesian({
center: center,
angle: utils_1.valueToAngle(v || value),
radius: radius,
});
}, [value, center, radius]);
var getValueFromPointerEvent = react_1.useCallback(function (e) {
return utils_1.calculateNearestValueToPoint({
point: utils_1.absPos(e),
container: utils_1.getElementPosition(containerRef.current),
value: value,
center: center,
radius: radius,
});
}, [containerRef.current, value, center, radius]);
// Context
var context = react_1.useMemo(function () { return ({
value: value,
radius: radius,
center: center,
isFocused: isFocused,
setFocused: setFocused,
onChange: onChange,
getPointFromValue: getPointFromValue,
getValueFromPointerEvent: getValueFromPointerEvent,
}); }, [value, radius, center, onChange, isFocused, setFocused]);
var handleClick = react_1.useCallback(function (e) {
if (isReadonly)
return;
var nearestValue = getValueFromPointerEvent(e);
onChange(nearestValue);
}, [onChange, getValueFromPointerEvent, isReadonly]);
var style = __assign({ overflow: 'visible', outline: 'none' }, (props.style || {}), { touchAction: 'manipulation', WebkitTapHighlightColor: 'rgba(0,0,0,0)' });
return (react_1.default.createElement(CircularInputContext_1.CircularInputProvider, { value: context },
react_1.default.createElement("svg", __assign({}, props, { ref: containerRef, width: size, height: size, viewBox: "0 0 " + size + " " + size, style: style, onClick: handleClick }, (!isReadonly ? accessibilityProps : {})), children ? (typeof children === 'function' ? (children(context)) : (children)) : (react_1.default.createElement(react_1.default.Fragment, null,
react_1.default.createElement(CircularTrack_1.CircularTrack, null),
react_1.default.createElement(CircularProgress_1.CircularProgress, null),
react_1.default.createElement(CircularThumb_1.CircularThumb, null))))));
}
exports.CircularInput = CircularInput;
//# sourceMappingURL=CircularInput.js.map