@realfavicongenerator/image-adapter-node
Version:
Image adapter for Node
89 lines (88 loc) • 3.79 kB
JavaScript
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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 __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getNodeImageAdapter = void 0;
const svg_js_1 = require("@svgdotjs/svg.js");
const sharp_1 = __importDefault(require("sharp"));
const dataUrlToBuffer = (dataUrl) => __awaiter(void 0, void 0, void 0, function* () {
return new Promise((resolve, reject) => {
const base64 = dataUrl.split(',')[1];
const buffer = Buffer.from(base64, 'base64');
resolve(buffer);
});
});
const getNodeImageAdapter = () => __awaiter(void 0, void 0, void 0, function* () {
const { createSVGWindow } = yield import('svgdom');
return {
createSvg: () => {
const window = createSVGWindow();
const document = window.document;
(0, svg_js_1.registerWindow)(window, document);
return (0, svg_js_1.SVG)(document.documentElement);
},
convertSvgToPng: (svg) => __awaiter(void 0, void 0, void 0, function* () {
return new Promise((resolve, reject) => {
const svgString = svg.svg();
const svgBuffer = Buffer.from(svgString);
(0, sharp_1.default)(svgBuffer)
.png()
.toBuffer((err, buffer, info) => {
if (err) {
reject(err);
}
else {
resolve(buffer);
}
});
});
}),
getImageSize: (dataUrl) => __awaiter(void 0, void 0, void 0, function* () {
const buffer = yield dataUrlToBuffer(dataUrl);
return new Promise((resolve, reject) => {
(0, sharp_1.default)(buffer)
.metadata()
.then(metadata => {
const width = metadata.width;
const height = metadata.height;
if (width === undefined || height === undefined) {
reject('Failed to get image metadata');
}
else {
resolve({ width, height });
}
})
.catch(err => {
reject(err);
});
});
}),
getImageData: (dataUrl, widthHeight) => __awaiter(void 0, void 0, void 0, function* () {
const buffer = yield dataUrlToBuffer(dataUrl);
return new Promise((resolve, reject) => {
(0, sharp_1.default)(buffer)
.resize(widthHeight, widthHeight)
.raw()
.toBuffer((err, data, info) => {
if (err) {
reject(err);
}
else {
resolve(data);
}
});
});
})
};
});
exports.getNodeImageAdapter = getNodeImageAdapter;