lazy-loading-image-render
Version:
Lazy loading image render with blur effect for Next.js
88 lines (87 loc) • 5.18 kB
JavaScript
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.BlurImage = BlurImage;
var react_1 = __importDefault(require("react"));
var image_1 = __importDefault(require("next/image"));
var react_2 = require("react");
var processImage = function (imageUrl) { return __awaiter(void 0, void 0, void 0, function () {
var response, data, error_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, , 4]);
return [4 /*yield*/, fetch('/api/process-image', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({ imageUrl: imageUrl }),
})];
case 1:
response = _a.sent();
if (!response.ok) {
throw new Error('Failed to process image');
}
return [4 /*yield*/, response.json()];
case 2:
data = _a.sent();
return [2 /*return*/, data.processedImage];
case 3:
error_1 = _a.sent();
console.error('Error processing image:', error_1);
return [2 /*return*/, null];
case 4: return [2 /*return*/];
}
});
}); };
function BlurImage(_a) {
var src = _a.src, alt = _a.alt, width = _a.width, height = _a.height, _b = _a.className, className = _b === void 0 ? '' : _b;
var _c = (0, react_2.useState)(true), isLoading = _c[0], setIsLoading = _c[1];
return (react_1.default.createElement("div", { className: "relative w-full h-full" },
react_1.default.createElement("div", { className: "absolute inset-0 blur-md scale-105 bg-cover bg-center bg-no-repeat transition-opacity duration-300\n ".concat(isLoading ? 'opacity-100' : 'opacity-0'), style: {
backgroundImage: "url(".concat(src, ")"),
filter: 'blur(20px)',
transform: 'scale(1.1)'
} }),
react_1.default.createElement(image_1.default, { src: src, alt: alt, width: width, height: height, className: "transition-opacity duration-300 ".concat(isLoading ? 'opacity-0' : 'opacity-100', " ").concat(className), onLoadingComplete: function () { return setIsLoading(false); } })));
}
exports.default = BlurImage;
;