betaflight-configurator/src/js/utils/common.js

import semver from "semver";

export function millitime() {
    return new Date().getTime();
}

const DEGREE_TO_RADIAN_RATIO = Math.PI / 180;

export function degToRad(degrees) {
    return degrees * DEGREE_TO_RADIAN_RATIO;
}

export function bytesToSize(bytes) {
    let outputBytes;

    if (bytes < 1024) {
        outputBytes = `${bytes} Bytes`;
    } else if (bytes < 1048576) {
        outputBytes = `${(bytes / 1024).toFixed(3)} KB`;
    } else if (bytes < 1073741824) {
        outputBytes = `${(bytes / 1048576).toFixed(3)} MB`;
    } else {
        outputBytes = `${(bytes / 1073741824).toFixed(3)} GB`;
    }

    return outputBytes;
}

export function isInt(n) {
    return n % 1 === 0;
}

/*
 *  checkChromeRuntimeError() has to be called after each chrome API call
 */

export function checkChromeRuntimeError() {
    if (chrome.runtime.lastError) {
        console.error(`Chrome API Error: ${chrome.runtime.lastError.message}.\n Traced ${new Error().stack}`);

        return true;
    }
    return false;
}

const majorFirmwareVersions = {
    "1.45": "4.4.*",
    "1.44": "4.3.*",
    "1.43": "4.2.*",
    "1.42": "4.1.*",
    "1.41": "4.0.*",
};

export function generateVirtualApiVersions() {
    const firmwareVersionDropdown = document.getElementById("firmware-version-dropdown");
    const max = semver.minor(CONFIGURATOR.API_VERSION_MAX_SUPPORTED);
    const min = semver.minor(CONFIGURATOR.API_VERSION_ACCEPTED);

    for (let i = max; i >= min; i--) {
        const option = document.createElement("option");
        const verNum = `1.${i}`;
        option.value = `${verNum}.0`;
        option.text = `MSP: ${verNum} `;

        if (majorFirmwareVersions.hasOwnProperty(verNum)) {
            option.text += ` | Firmware: ${majorFirmwareVersions[verNum]}`;
        } else if (i === max) {
            option.text += ` | Latest Firmware`;
        }

        firmwareVersionDropdown.appendChild(option);
    }
}

export function getMixerImageSrc(mixerIndex, reverseMotorDir) {
    const reverse = reverseMotorDir ? "_reversed" : "";

    return `./resources/motor_order/${mixerList[mixerIndex - 1].image}${reverse}.svg`;
}

export function getTextWidth(text) {
    const canvas = document.createElement('canvas');
    const context = canvas.getContext('2d');

    context.font = getComputedStyle(document.body).font;

    return Math.ceil(context.measureText(text).width);
}

export function sortElement(element, keepDown = "DISABLED") {
    const list = document.querySelector(element);
    [...list.children]
        .sort((a, b) => {
            if (a.innerText === keepDown) {
                return 1;
            } else if (b.innerText === keepDown) {
                return -1;
            } else {
                return a.innerText > b.innerText ? 1 : -1;
            }
        })
        .forEach(node => list.appendChild(node));
}

// TODO: these are temp binding while transition to module happens
window.degToRad = degToRad;
window.bytesToSize = bytesToSize;
window.isInt = isInt;
window.checkChromeRuntimeError = checkChromeRuntimeError;
window.generateVirtualApiVersions = generateVirtualApiVersions;
window.getMixerImageSrc = getMixerImageSrc;
window.getTextWidth = getTextWidth;
window.sortElement = sortElement;