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feat: Utils for queueGC, debounce and throttle

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This commit is contained in:
Nathan Walker
2022-02-26 10:14:23 -08:00
parent 9e6371fdaf
commit 40c5984966
4 changed files with 55 additions and 16 deletions
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5
packages/core/index.d.ts vendored
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@ -103,13 +103,16 @@ export type { InstrumentationMode, TimerInfo } from './profiling';
export { encoding } from './text';
export * from './trace';
export * from './ui';
import { GC, isFontIconURI, isDataURI, isFileOrResourcePath, executeOnMainThread, mainThreadify, isMainThread, dispatchToMainThread, releaseNativeObject, getModuleName, openFile, openUrl, isRealDevice, layout, ad as androidUtils, iOSNativeHelper as iosUtils, Source, escapeRegexSymbols, convertString, dismissSoftInput, queueMacrotask } from './utils';
import { GC, isFontIconURI, isDataURI, isFileOrResourcePath, executeOnMainThread, mainThreadify, isMainThread, dispatchToMainThread, releaseNativeObject, getModuleName, openFile, openUrl, isRealDevice, layout, ad as androidUtils, iOSNativeHelper as iosUtils, Source, escapeRegexSymbols, convertString, dismissSoftInput, queueMacrotask, queueGC, throttle, debounce } from './utils';
import { ClassInfo, getClass, getBaseClasses, getClassInfo, isBoolean, isDefined, isFunction, isNullOrUndefined, isNumber, isObject, isString, isUndefined, toUIString, verifyCallback } from './utils/types';
export declare const Utils: {
GC: typeof GC;
RESOURCE_PREFIX: string;
FILE_PREFIX: string;
queueMacrotask: typeof queueMacrotask;
queueGC: typeof queueGC;
debounce: typeof debounce;
throttle: typeof throttle;
isFontIconURI: typeof isFontIconURI;
isDataURI: typeof isDataURI;
isFileOrResourcePath: typeof isFileOrResourcePath;

5
packages/core/index.ts
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@ -129,7 +129,7 @@ export * from './trace';
export * from './ui';
import { GC, isFontIconURI, isDataURI, isFileOrResourcePath, executeOnMainThread, mainThreadify, isMainThread, dispatchToMainThread, queueMacrotask, releaseNativeObject, getModuleName, openFile, openUrl, isRealDevice, layout, ad as androidUtils, iOSNativeHelper as iosUtils, Source, RESOURCE_PREFIX, FILE_PREFIX, escapeRegexSymbols, convertString, dismissSoftInput } from './utils';
import { GC, isFontIconURI, isDataURI, isFileOrResourcePath, executeOnMainThread, mainThreadify, isMainThread, dispatchToMainThread, queueMacrotask, queueGC, debounce, throttle, releaseNativeObject, getModuleName, openFile, openUrl, isRealDevice, layout, ad as androidUtils, iOSNativeHelper as iosUtils, Source, RESOURCE_PREFIX, FILE_PREFIX, escapeRegexSymbols, convertString, dismissSoftInput } from './utils';
import { ClassInfo, getClass, getBaseClasses, getClassInfo, isBoolean, isDefined, isFunction, isNullOrUndefined, isNumber, isObject, isString, isUndefined, toUIString, verifyCallback } from './utils/types';
export const Utils = {
@ -144,6 +144,9 @@ export const Utils = {
isMainThread,
dispatchToMainThread,
queueMacrotask,
queueGC,
debounce,
throttle,
releaseNativeObject,
convertString,
escapeRegexSymbols,

20
packages/core/utils/index.d.ts vendored
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@ -188,9 +188,25 @@ export namespace ad {
export function GC();
/**
* An utility function that queues a garbage collection, subseqent calls will be throttled and only one gc will be executed.
* An utility function that queues a garbage collection, multiple calls in quick succession are debounced by default and only one gc will be executed after 900ms.
* @param delay Customize the delay
* @param useThrottle Instead of default debounce strategy, use throttling
*/
export function queueGC();
export function queueGC(delay?: number, useThrottle?: boolean);
/**
* A simple throttle utility
* @param fn Function to throttle
* @param delay Customize the delay (default is 300ms)
*/
export function throttle(fn: any, delay?: number);
/**
* A simple debounce utility
* @param fn Function to debounce
* @param delay Customize the delay (default is 300ms)
*/
export function debounce(fn: any, delay?: number);
/**
* Releases the reference to the wrapped native object

41
packages/core/utils/utils-common.ts
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@ -132,16 +132,33 @@ export function mainThreadify(func: Function): (...args: any[]) => void {
};
}
let hasQueuedGC = false;
export function queueGC() {
if (hasQueuedGC) {
return;
}
hasQueuedGC = true;
setTimeout(() => {
hasQueuedGC = false;
GC();
}, 1000);
export function debounce(fn: any, delay = 300) {
let timer: NodeJS.Timeout;
return (...args: Array<any>) => {
clearTimeout(timer);
timer = setTimeout(() => {
fn.apply(this, args);
}, delay);
};
}
export function throttle(fn: any, delay = 300) {
let waiting = false;
return function () {
if (!waiting) {
fn.apply(this, arguments);
waiting = true;
setTimeout(function () {
waiting = false;
}, delay);
}
};
}
export function queueGC(delay = 900, useThrottle?: boolean) {
if (useThrottle) {
throttle(() => GC(), delay);
} else {
debounce(() => GC(), delay);
}
}