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Copy pathcommon.ts
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292 lines (246 loc) · 7.02 KB
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import * as types from './types';
import { dispatchToMainThread, dispatchToUIThread, isMainThread } from './mainthread-helper';
import emojiRegex from 'emoji-regex';
import { GC } from './index';
export * from './mainthread-helper';
export * from './macrotask-scheduler';
export const RESOURCE_PREFIX = 'res://';
export const FILE_PREFIX = 'file:///';
export function escapeRegexSymbols(source: string): string {
const escapeRegex = /[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g;
return source.replace(escapeRegex, '\\$&');
}
export function convertString(value: any): any {
let result;
if (!types.isString(value) || value.trim() === '') {
result = value;
} else {
// Try to convert value to number.
const valueAsNumber = +value;
if (!isNaN(valueAsNumber)) {
result = valueAsNumber;
} else if (value && (value.toLowerCase() === 'true' || value.toLowerCase() === 'false')) {
result = value.toLowerCase() === 'true' ? true : false;
} else {
result = value;
}
}
return result;
}
export function getModuleName(path: string): string {
const moduleName = path.replace('./', '');
return sanitizeModuleName(moduleName);
}
/**
* Helps sanitize a module name if it is prefixed with '~/', '~' or '/'
* @param moduleName the name
* @param removeExtension whether to remove extension
*/
export function sanitizeModuleName(moduleName: string, removeExtension = true): string {
moduleName = moduleName.trim();
if (moduleName.startsWith('~/')) {
moduleName = moduleName.substring(2);
} else if (moduleName.startsWith('~')) {
moduleName = moduleName.substring(1);
} else if (moduleName.startsWith('/')) {
moduleName = moduleName.substring(1);
}
if (removeExtension) {
const extToRemove = ['js', 'ts', 'xml', 'html', 'css', 'scss'];
const extensionRegEx = new RegExp(`(.*)\\.(?:${extToRemove.join('|')})`, 'i');
moduleName = moduleName.replace(extensionRegEx, '$1');
}
return moduleName;
}
export function isFileOrResourcePath(path: string): boolean {
if (!types.isString(path)) {
return false;
}
return (
path.indexOf('~/') === 0 || // relative to AppRoot
path.indexOf('/') === 0 || // absolute path
path.indexOf(RESOURCE_PREFIX) === 0
); // resource
}
export function isFontIconURI(uri: string): boolean {
if (!types.isString(uri)) {
return false;
}
const firstSegment = uri.trim().split('//')[0];
return firstSegment && firstSegment.indexOf('font:') === 0;
}
export function isDataURI(uri: string): boolean {
if (!types.isString(uri)) {
return false;
}
const firstSegment = uri.trim().split(',')[0];
return firstSegment && firstSegment.indexOf('data:') === 0 && firstSegment.indexOf('base64') >= 0;
}
/**
* Get file extension from file path
* @param path file path
* @returns file extension
*/
export function getFileExtension(path: string): string {
const dotIndex = path.lastIndexOf('.');
if (dotIndex && dotIndex >= 0 && dotIndex < path.length) {
return path.substring(dotIndex);
}
return '';
}
export function mergeSort(arr, compareFunc) {
if (arr.length < 2) {
return arr;
}
const middle = arr.length / 2;
const left = arr.slice(0, middle);
const right = arr.slice(middle, arr.length);
return merge(mergeSort(left, compareFunc), mergeSort(right, compareFunc), compareFunc);
}
export function merge(left, right, compareFunc) {
const result = [];
while (left.length && right.length) {
if (compareFunc(left[0], right[0]) <= 0) {
result.push(left.shift());
} else {
result.push(right.shift());
}
}
while (left.length) {
result.push(left.shift());
}
while (right.length) {
result.push(right.shift());
}
return result;
}
export function hasDuplicates(arr: Array<any>): boolean {
return arr.length !== eliminateDuplicates(arr).length;
}
export function eliminateDuplicates(arr: Array<any>): Array<any> {
return Array.from(new Set(arr));
}
export function executeOnMainThread(func: Function) {
if (isMainThread()) {
return func();
} else {
dispatchToMainThread(func);
}
}
export function executeOnUIThread(func: Function) {
dispatchToUIThread(func);
}
export function mainThreadify(func: Function): (...args: any[]) => void {
return function (...args) {
const argsToPass = args;
executeOnMainThread(() => func.apply(this, argsToPass));
};
}
export function debounce(fn: any, delay = 300, { leading }: { leading?: boolean } = {}) {
let timer: NodeJS.Timeout;
return (...args: Array<any>) => {
if (timer === undefined && leading) {
fn.apply(this, args);
}
clearTimeout(timer);
timer = setTimeout(() => {
fn.apply(this, args);
timer = undefined;
}, delay);
};
}
export function throttle(fn: Function, delay = 300) {
let waiting = false;
return function (...args) {
if (!waiting) {
fn.apply(this, args);
waiting = true;
setTimeout(function () {
waiting = false;
}, delay);
}
};
}
let throttledGC: Map<number, () => void>;
let debouncedGC: Map<number, () => void>;
export function queueGC(delay = 900, useThrottle?: boolean) {
/**
* developers can use different queueGC settings to optimize their own apps
* each setting is stored in a Map to reuse each time app calls it
*/
if (useThrottle) {
if (!throttledGC) {
throttledGC = new Map();
}
if (!throttledGC.get(delay)) {
throttledGC.set(
delay,
throttle(() => GC(), delay)
);
}
throttledGC.get(delay)();
} else {
if (!debouncedGC) {
debouncedGC = new Map();
}
if (!debouncedGC.get(delay)) {
debouncedGC.set(
delay,
debounce(() => GC(), delay)
);
}
debouncedGC.get(delay)();
}
}
export function isEmoji(value: string): boolean {
// TODO: In a future runtime update, we can switch to using Unicode Property Escapes:
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions/Unicode_Property_Escapes
return emojiRegex().test(value);
}
/**
* Default animation values used throughout core
*/
export const CORE_ANIMATION_DEFAULTS = {
duration: 0.35,
spring: {
tension: 140,
friction: 10,
mass: 1,
velocity: 0,
},
};
/**
* Get a duration with damping value from various spring related settings.
* Helpful when needing to convert spring settings to isolated duration value.
* @param springSettings various spring settings
* @returns calculated duration with damping from spring settings
*/
export function getDurationWithDampingFromSpring(springSettings?: { tension?: number; friction?: number; mass?: number; velocity?: number }) {
// for convenience, default spring settings are provided
const opt = {
...CORE_ANIMATION_DEFAULTS.spring,
...(springSettings || {}),
};
const damping = opt.friction / Math.sqrt(2 * opt.tension);
const undampedFrequency = Math.sqrt(opt.tension / opt.mass);
// console.log({
// damping,
// undampedFrequency
// })
const epsilon = 0.001;
let duration = 0;
if (damping < 1) {
// console.log('damping < 1');
const a = Math.sqrt(1 - Math.pow(damping, 2));
const b = opt.velocity / (a * undampedFrequency);
const c = damping / a;
const d = -((b - c) / epsilon);
if (d > 0) {
duration = Math.log(d) / (damping * undampedFrequency);
}
}
return {
duration,
damping,
};
}