93 lines
4.1 KiB
JavaScript
93 lines
4.1 KiB
JavaScript
"use strict";
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.default = imageInputFileToBase64;
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/**
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* # Image input File top Base64
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*/
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function imageInputFileToBase64(_a) {
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return __awaiter(this, arguments, void 0, function* ({ imageInputFile, maxWidth, imagePreviewNode, }) {
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/**
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* Make https request
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*
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* @description make a request to datasquirel.com
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*/
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try {
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let imageName = imageInputFile.name.replace(/\..*/, "");
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let imageDataBase64;
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let imageSize;
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let canvas = document.createElement("canvas");
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const MIME_TYPE = imageInputFile.type;
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const QUALITY = 0.95;
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const MAX_WIDTH = maxWidth ? maxWidth : null;
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const file = imageInputFile;
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const blobURL = URL.createObjectURL(file);
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const img = new Image();
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/** ********************* Add source to new image */
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img.src = blobURL;
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imageDataBase64 = yield new Promise((res, rej) => {
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/** ********************* Handle Errors in loading image */
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img.onerror = function () {
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URL.revokeObjectURL(this.src);
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console.log("Cannot load image");
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};
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/** ********************* Handle new image when loaded */
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img.onload = function (e) {
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const imgEl = e.target;
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URL.revokeObjectURL(imgEl.src);
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if (MAX_WIDTH) {
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const scaleSize = MAX_WIDTH / img.naturalWidth;
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canvas.width =
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img.naturalWidth < MAX_WIDTH
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? img.naturalWidth
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: MAX_WIDTH;
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canvas.height =
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img.naturalWidth < MAX_WIDTH
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? img.naturalHeight
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: img.naturalHeight * scaleSize;
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}
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else {
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canvas.width = img.naturalWidth;
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canvas.height = img.naturalHeight;
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}
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const ctx = canvas.getContext("2d");
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ctx === null || ctx === void 0 ? void 0 : ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
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const srcEncoded = canvas.toDataURL(MIME_TYPE, QUALITY);
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if (imagePreviewNode) {
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imagePreviewNode.src = srcEncoded;
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}
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res(srcEncoded);
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};
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});
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imageSize = yield new Promise((res, rej) => {
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canvas.toBlob((blob) => {
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res(blob === null || blob === void 0 ? void 0 : blob.size);
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}, MIME_TYPE, QUALITY);
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});
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return {
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imageBase64: imageDataBase64 === null || imageDataBase64 === void 0 ? void 0 : imageDataBase64.replace(/.*?base64,/, ""),
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imageBase64Full: imageDataBase64,
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imageName: imageName,
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imageSize: imageSize,
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};
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}
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catch (error) {
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console.log("Image Processing Error! =>", error.message);
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return {
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imageBase64: undefined,
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imageBase64Full: undefined,
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imageName: undefined,
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imageSize: undefined,
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};
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}
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});
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}
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