ConvertBase64CScript.js

/**
 * @NApiVersion 2.x
 * @NScriptType ClientScript
 * @NModuleScope SameAccount
 */
define([],

    function () {

        /**
         * Function to be executed after page is initialized.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.mode - The mode in which the record is being accessed (create, copy, or edit)
         *
         * @since 2015.2
         */
        function pageInit(scriptContext) {

        }

        /**
         * Function to be executed when field is changed.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.sublistId - Sublist name
         * @param {string} scriptContext.fieldId - Field name
         * @param {number} scriptContext.lineNum - Line number. Will be undefined if not a sublist or matrix field
         * @param {number} scriptContext.columnNum - Line number. Will be undefined if not a matrix field
         *
         * @since 2015.2
         */
        function fieldChanged(scriptContext) {

        }

        /**
         * Function to be executed when field is slaved.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.sublistId - Sublist name
         * @param {string} scriptContext.fieldId - Field name
         *
         * @since 2015.2
         */
        function postSourcing(scriptContext) {

        }

        /**
         * Function to be executed after sublist is inserted, removed, or edited.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.sublistId - Sublist name
         *
         * @since 2015.2
         */
        function sublistChanged(scriptContext) {

        }

        /**
         * Function to be executed after line is selected.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.sublistId - Sublist name
         *
         * @since 2015.2
         */
        function lineInit(scriptContext) {

        }

        /**
         * Validation function to be executed when field is changed.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.sublistId - Sublist name
         * @param {string} scriptContext.fieldId - Field name
         * @param {number} scriptContext.lineNum - Line number. Will be undefined if not a sublist or matrix field
         * @param {number} scriptContext.columnNum - Line number. Will be undefined if not a matrix field
         *
         * @returns {boolean} Return true if field is valid
         *
         * @since 2015.2
         */
        function validateField(scriptContext) {

        }

        /**
         * Validation function to be executed when sublist line is committed.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.sublistId - Sublist name
         *
         * @returns {boolean} Return true if sublist line is valid
         *
         * @since 2015.2
         */
        function validateLine(scriptContext) {

        }

        /**
         * Validation function to be executed when sublist line is inserted.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.sublistId - Sublist name
         *
         * @returns {boolean} Return true if sublist line is valid
         *
         * @since 2015.2
         */
        function validateInsert(scriptContext) {

        }

        /**
         * Validation function to be executed when record is deleted.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @param {string} scriptContext.sublistId - Sublist name
         *
         * @returns {boolean} Return true if sublist line is valid
         *
         * @since 2015.2
         */
        function validateDelete(scriptContext) {

        }

        /**
         * Validation function to be executed when record is saved.
         *
         * @param {Object} scriptContext
         * @param {Record} scriptContext.currentRecord - Current form record
         * @returns {boolean} Return true if record is valid
         *
         * @since 2015.2
         */
        function saveRecord(scriptContext) {
            let rec = scriptContext.currentRecord

            let imgURL = rec.getValue({
                fieldId: 'custitem_lf_image_url'
            })



            function onImageChange(event) {
                const imgUrl = "https://d1nyf670ujuw7h.cloudfront.net/Logoed-Images/1015-nvy-w67758.jpg";
                createImage(imgUrl, convertImage);
            }


            function createImage(imageFile, callback) {
                const image = document.createElement('img');
                image.onload = () => callback(image);
                image.setAttribute('src', imageFile);
            }

            function convertImage(image) {
                const canvas = drawImageToCanvas(image);
                const ctx = canvas.getContext('2d');

                let result = [];
                for (let y = 0; y < canvas.height; y++) {
                    result.push([]);
                    for (let x = 0; x < canvas.width; x++) {
                        let data = ctx.getImageData(x, y, 1, 1).data;
                        result[y].push(data[0]);
                        result[y].push(data[1]);
                        result[y].push(data[2]);
                    }
                }

                // async function img2BufferArray(imgUrl) {
            //     let headers = new Headers()
            //     let buffArray = [];
            //     await fetch(imgUrl, {
            //         method: "GET",
            //         mode: "cors",
            //         crossorigin: true,
            //         body: null
            //     })
            //         .then(r => r.arrayBuffer())
            //         .then(buff => {
            //             buffArray = new Int8Array(buff);
            //             return buffArray;
            //         });
            // }

            // Call the function
            let imgData =   img2BufferArray(imgUrl);

            console.log('imgData: ', imgData);


        }

        return {
            pageInit: pageInit,
            fieldChanged: fieldChanged,
            postSourcing: postSourcing,
            sublistChanged: sublistChanged,
            lineInit: lineInit,
            validateField: validateField,
            validateLine: validateLine,
            validateInsert: validateInsert,
            validateDelete: validateDelete,
            saveRecord: saveRecord
        };

    });