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client/refactor: extract the debouncer to a separate module

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This commit is contained in:
Adorian Doran 2025-11-18 19:20:17 +02:00
parent 5ecd8b41e5
commit 45747183e7
2 changed files with 33 additions and 33 deletions
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34
apps/client/src/menus/custom-items/NoteColorPickerMenuItem.tsx
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@ -2,6 +2,7 @@ import "./NoteColorPickerMenuItem.css";
import { useEffect, useRef, useState} from "preact/hooks";
import {ComponentChildren} from "preact";
import attributes from "../../services/attributes";
import Debouncer from "../../utils/debouncer";
import FNote from "../../entities/fnote";
import froca from "../../services/froca";
@ -106,37 +107,4 @@ function CustomColorCell(props: ColorCellProps) {
style="width: 0; height: 0; opacity: 0" />
</ColorCell>
</>
}
type DebouncerCallback<T> = (value: T) => void;
class Debouncer<T> {
private debounceInterval: number;
private callback: DebouncerCallback<T>;
private lastValue: T | undefined;
private timeoutId: any | null = null;
constructor(debounceInterval: number, onUpdate: DebouncerCallback<T>) {
this.debounceInterval = debounceInterval;
this.callback = onUpdate;
}
updateValue(value: T) {
this.lastValue = value;
this.destroy();
this.timeoutId = setTimeout(this.reportUpdate.bind(this), this.debounceInterval);
}
destroy() {
if (this.timeoutId !== null) {
clearTimeout(this.timeoutId);
}
}
private reportUpdate() {
if (this.lastValue !== undefined) {
this.callback(this.lastValue);
}
}
}

32
apps/client/src/utils/debouncer.ts Normal file
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@ -0,0 +1,32 @@
export type DebouncerCallback<T> = (value: T) => void;
export default class Debouncer<T> {
private debounceInterval: number;
private callback: DebouncerCallback<T>;
private lastValue: T | undefined;
private timeoutId: any | null = null;
constructor(debounceInterval: number, onUpdate: DebouncerCallback<T>) {
this.debounceInterval = debounceInterval;
this.callback = onUpdate;
}
updateValue(value: T) {
this.lastValue = value;
this.destroy();
this.timeoutId = setTimeout(this.reportUpdate.bind(this), this.debounceInterval);
}
destroy() {
if (this.timeoutId !== null) {
clearTimeout(this.timeoutId);
}
}
private reportUpdate() {
if (this.lastValue !== undefined) {
this.callback(this.lastValue);
}
}
}