react-circular-input
Version:
React components for easily composing a circular range input
147 lines • 6.5 kB
JavaScript
;
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__assign = Object.assign || function(t) {
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s = arguments[i];
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}
return t;
};
return __assign.apply(this, arguments);
};
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
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")
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if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
t[p[i]] = s[p[i]];
}
return t;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.CircularInput = void 0;
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, _d = _a.onChange, onChange = _d === void 0 ? function () { } : _d, _e = _a.onChangeEnd, onChangeEnd = _e === void 0 ? function () { } : _e, _f = _a.tabIndex, tabIndex = _f === void 0 ? 0 : _f, children = _a.children, props = __rest(_a, ["value", "radius", "onChange", "onChangeEnd", "tabIndex", "children"]);
var containerRef = react_1.useRef(null);
var size = radius * 2;
var center = react_1.useMemo(function () { return ({ x: radius, y: radius }); }, [radius]);
// Accessibility
var _g = react_1.useState(false), isFocused = _g[0], setFocused = _g[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: tabIndex,
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,
});
}, [value, center, radius]);
// Context
var context = react_1.useMemo(function () { return ({
value: value,
radius: radius,
center: center,
isFocused: isFocused,
setFocused: setFocused,
onChange: onChange,
onChangeEnd: onChangeEnd,
getPointFromValue: getPointFromValue,
getValueFromPointerEvent: getValueFromPointerEvent,
}); }, [
value,
radius,
center,
onChange,
onChangeEnd,
isFocused,
setFocused,
getPointFromValue,
getValueFromPointerEvent,
]);
var handleClick = react_1.useCallback(function (e) {
if (isReadonly)
return;
var nearestValue = getValueFromPointerEvent(e);
onChange(nearestValue);
onChangeEnd(nearestValue);
}, [onChange, onChangeEnd, getValueFromPointerEvent, isReadonly]);
var style = __assign(__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