26 lines
830 B
TypeScript
26 lines
830 B
TypeScript
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import { Injectable } from '@angular/core';
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import { CanDeactivate } from '@angular/router';
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/**
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* Interface to describe the function that is necessary.
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*/
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export interface CanComponentDeactivate {
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canDeactivate: () => Promise<boolean>;
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}
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@Injectable({
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providedIn: 'root'
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})
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export class WatchSortingTreeGuard implements CanDeactivate<CanComponentDeactivate> {
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/**
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* Function to determine whether the route will change or not.
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*
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* @param component Is the component that implements the interface described above.
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*
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* @returns A boolean: True if the route should change, false if the route shouldn't change.
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*/
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public async canDeactivate(component: CanComponentDeactivate): Promise<boolean> {
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return component.canDeactivate ? await component.canDeactivate() : true;
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}
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}
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