react-native-360-images-viewer
Version:
A React Native component for 360-degree images viewing.
88 lines (87 loc) • 4.37 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 __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var react_1 = __importStar(require("react"));
var react_native_1 = require("react-native");
var styles_1 = __importDefault(require("./styles"));
var windowWidth = react_native_1.Dimensions.get('window').width;
var Image360Viewer = function (_a) {
var _b = _a.width, width = _b === void 0 ? windowWidth : _b, _c = _a.height, height = _c === void 0 ? 300 : _c, _d = _a.srcset, srcset = _d === void 0 ? [] : _d, _e = _a.rotationRatio, rotationRatio = _e === void 0 ? 0.5 : _e, _f = _a.emptyComponent, emptyComponent = _f === void 0 ? null : _f;
var _g = (0, react_1.useState)(0), rotation = _g[0], setRotation = _g[1];
var rotatePeriod = 360 / Math.max(srcset.length, 1); // Avoid division by zero
var startX = (0, react_1.useRef)(0);
var startRotation = (0, react_1.useRef)(0);
var updateRotation = (0, react_1.useCallback)(function (currentX) {
var deltaRotation = ((currentX - startX.current) * 180) / (rotationRatio * (width || 1));
setRotation(function (prevRotation) { return (startRotation.current + deltaRotation) % 360; });
}, [rotationRatio, width]);
var getImage = (0, react_1.useCallback)(function () {
if (srcset.length === 0)
return null; // Handle empty srcset
var normalizedRotation = (rotation + 360) % 360; // Ensure positive rotation
var index = Math.floor(normalizedRotation / rotatePeriod) % srcset.length;
return srcset[index];
}, [rotation, rotatePeriod, srcset]);
var panResponder = (0, react_1.useRef)(react_native_1.PanResponder.create({
onMoveShouldSetPanResponder: function () { return true; },
onPanResponderGrant: function (_evt, gestureState) {
startX.current = gestureState.moveX;
startRotation.current = rotation;
},
onPanResponderMove: function (_evt, gestureState) {
updateRotation(gestureState.moveX);
},
onPanResponderRelease: function (_evt, gestureState) {
updateRotation(gestureState.moveX);
},
})).current;
var imageSource = getImage();
return (react_1.default.createElement(react_native_1.View, __assign({}, panResponder.panHandlers), imageSource ? (react_1.default.createElement(react_native_1.Image, { source: imageSource, style: [styles_1.default.image, { width: width, height: height }] })) : (emptyComponent)));
};
exports.default = Image360Viewer;