c30ba6a3f6
so Mathjax is saved when exiting editor prematurely
34 lines
804 B
TypeScript
34 lines
804 B
TypeScript
// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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export class ChangeTimer {
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private value: number | null = null;
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private action: (() => void) | null = null;
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constructor() {
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this.fireImmediately = this.fireImmediately.bind(this);
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}
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schedule(action: () => void, delay: number): void {
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this.clear();
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this.action = action;
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this.value = setTimeout(this.fireImmediately, delay);
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}
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clear(): void {
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if (this.value) {
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clearTimeout(this.value);
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this.value = null;
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}
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}
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fireImmediately(): void {
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if (this.action) {
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this.action();
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this.action = null;
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}
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this.clear();
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}
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}
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