61 lines
1.3 KiB
TypeScript
61 lines
1.3 KiB
TypeScript
import { removeFromArray } from 'snjs';
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import { FooterStatus } from './../types';
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type StatusCallback = (string: string) => void
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export class StatusManager {
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private statuses: FooterStatus[] = []
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private observers: StatusCallback[] = []
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statusFromString(string: string) {
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return {string: string};
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}
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replaceStatusWithString(status: FooterStatus, string: string) {
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this.removeStatus(status);
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return this.addStatusFromString(string);
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}
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addStatusFromString(string: string) {
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return this.addStatus(this.statusFromString(string));
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}
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addStatus(status: FooterStatus) {
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this.statuses.push(status);
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this.notifyObservers();
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return status;
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}
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removeStatus(status: FooterStatus) {
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removeFromArray(this.statuses, status);
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this.notifyObservers();
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return undefined;
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}
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getStatusString() {
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let result = '';
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this.statuses.forEach((status, index) => {
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if(index > 0) {
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result += ' ';
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}
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result += status.string;
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});
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return result;
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}
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notifyObservers() {
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for(const observer of this.observers) {
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observer(this.getStatusString());
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}
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}
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addStatusObserver(callback: StatusCallback) {
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this.observers.push(callback);
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return () => {
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removeFromArray(this.observers, callback);
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}
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}
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}
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