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Tben 2023-05-23 14:25:02 +01:00
parent 7124ee8d3f
commit c0a696321f
4 changed files with 235 additions and 1 deletions
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39
client/index.js Normal file
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/**
* ==============================================================================
* Imports
* ==============================================================================
*/
import imageInputFileToBase64 from "./media/imageInputFileToBase64";
import imageInputToBase64 from "./media/imageInputToBase64";
/** ****************************************************************************** */
/** ****************************************************************************** */
/** ****************************************************************************** */
/** ****************************************************************************** */
/** ****************************************************************************** */
/** ****************************************************************************** */
/**
* ==============================================================================
* Media Functions Object
* ==============================================================================
*/
const media = {
imageInputToBase64: imageInputToBase64,
imageInputFileToBase64: imageInputFileToBase64,
};
/**
* ==============================================================================
* Main Export
* ==============================================================================
*/
const datasquirelClient = {
media: media,
};
export default datasquirelClient;
/** ********************************************** */
/** ********************************************** */
/** ********************************************** */

104
client/media/imageInputFileToBase64.js Normal file
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/**
* @typedef {{
* imageBase64: string,
* imageBase64Full: string,
* imageName: string,
* imageSize: number,
* }} FunctionReturn
*/
/**
* ==============================================================================
* Main Function
* ==============================================================================
* @async
*
* @param {{
* imageInputFile: { name:string },
* maxWidth: number,
* imagePreviewNode: HTMLImageElement,
* }} params - Single object passed
*
* @returns { Promise<FunctionReturn> } - Return Object
*/
export default async function imageInputFileToBase64({ imageInputFile, maxWidth, imagePreviewNode }) {
/**
* Make https request
*
* @description make a request to datasquirel.com
*/
console.log(typeof imageInputFile);
let imageName = imageInputFile.name.replace(/\..*/, "");
let imageDataBase64;
let imageSize;
let canvas = document.createElement("canvas");
const MIME_TYPE = imageInputFile.type;
const QUALITY = 0.95;
const MAX_WIDTH = maxWidth ? maxWidth : null;
const file = imageInputFile; // get the file
const blobURL = URL.createObjectURL(file);
const img = new Image();
/** ********************* Add source to new image */
img.src = blobURL;
imageDataBase64 = await new Promise((res, rej) => {
/** ********************* Handle Errors in loading image */
img.onerror = function () {
URL.revokeObjectURL(this.src);
console.log("Cannot load image");
};
/** ********************* Handle new image when loaded */
img.onload = function () {
URL.revokeObjectURL(this.src);
if (MAX_WIDTH) {
const scaleSize = MAX_WIDTH / img.naturalWidth;
canvas.width = img.naturalWidth < MAX_WIDTH ? img.naturalWidth : MAX_WIDTH;
canvas.height = img.naturalWidth < MAX_WIDTH ? img.naturalHeight : img.naturalHeight * scaleSize;
} else {
canvas.width = img.naturalWidth;
canvas.height = img.naturalHeight;
}
const ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
const srcEncoded = canvas.toDataURL(MIME_TYPE, QUALITY);
if (imagePreviewNode) {
document.querySelectorAll(`[data-imagepreview='image']`).forEach((img) => {
img.src = srcEncoded;
});
}
res(srcEncoded);
};
});
imageSize = await new Promise((res, rej) => {
canvas.toBlob(
(blob) => {
res(blob.size);
},
MIME_TYPE,
QUALITY
);
});
return {
imageBase64: imageDataBase64.replace(/.*?base64,/, ""),
imageBase64Full: imageDataBase64,
imageName: imageName,
imageSize: imageSize,
};
}
/** ********************************************** */
/** ********************************************** */
/** ********************************************** */

91
client/media/imageInputToBase64.js Normal file
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/**
* @typedef {{
* imageBase64: string,
* imageBase64Full: string,
* imageName: string,
* }} FunctionReturn
*/
/**
* ==============================================================================
* Main Function
* ==============================================================================
* @async
*
* @param {{
* imageInput: HTMLInputElement,
* maxWidth: number,
* mimeType: [string='image/jpeg']
* }} params - Single object passed
*
* @returns { Promise<FunctionReturn> } - Return Object
*/
export default async function imageInputToBase64({ imageInput, maxWidth, mimeType }) {
/**
* Make https request
*
* @description make a request to datasquirel.com
*/
let imagePreviewNode = document.querySelector(`[data-imagepreview='image']`);
let imageName = imageInput.files[0].name.replace(/\..*/, "");
let imageDataBase64;
const MIME_TYPE = mimeType ? mimeType : "image/jpeg";
const QUALITY = 0.95;
const MAX_WIDTH = maxWidth ? maxWidth : null;
const file = imageInput.files[0]; // get the file
const blobURL = URL.createObjectURL(file);
const img = new Image();
/** ********************* Add source to new image */
img.src = blobURL;
imageDataBase64 = await new Promise((res, rej) => {
/** ********************* Handle Errors in loading image */
img.onerror = function () {
URL.revokeObjectURL(this.src);
window.alert("Cannot load image!");
};
/** ********************* Handle new image when loaded */
img.onload = function () {
URL.revokeObjectURL(this.src);
const canvas = document.createElement("canvas");
if (MAX_WIDTH) {
const scaleSize = MAX_WIDTH / img.naturalWidth;
canvas.width = img.naturalWidth < MAX_WIDTH ? img.naturalWidth : MAX_WIDTH;
canvas.height = img.naturalWidth < MAX_WIDTH ? img.naturalHeight : img.naturalHeight * scaleSize;
} else {
canvas.width = img.naturalWidth;
canvas.height = img.naturalHeight;
}
const ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
const srcEncoded = canvas.toDataURL(MIME_TYPE, QUALITY);
if (imagePreviewNode) {
document.querySelectorAll(`[data-imagepreview='image']`).forEach((img) => {
img.src = srcEncoded;
});
}
res(srcEncoded);
};
});
return {
imageBase64: imageDataBase64.replace(/.*?base64,/, ""),
imageBase64Full: imageDataBase64,
imageName: imageName,
};
}
/** ********************************************** */
/** ********************************************** */
/** ********************************************** */

2
package.json
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{ {
"name": "datasquirel", "name": "datasquirel",
"version": "1.1.26", "version": "1.1.27",
"description": "Cloud-based SQL data management tool", "description": "Cloud-based SQL data management tool",
"main": "index.js", "main": "index.js",
"scripts": { "scripts": {