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1 | /**
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2 | * @license
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3 | * Copyright Google LLC All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | import { Observable } from 'rxjs';
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9 | import { Constructor } from './constructor';
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10 | /**
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11 | * Mixin that adds an initialized property to a directive which, when subscribed to, will emit a
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12 | * value once markInitialized has been called, which should be done during the ngOnInit function.
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13 | * If the subscription is made after it has already been marked as initialized, then it will trigger
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14 | * an emit immediately.
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15 | * @docs-private
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16 | */
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17 | export interface HasInitialized {
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18 | /** Stream that emits once during the directive/component's ngOnInit. */
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19 | initialized: Observable<void>;
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20 | /**
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21 | * Sets the state as initialized and must be called during ngOnInit to notify subscribers that
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22 | * the directive has been initialized.
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23 | * @docs-private
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24 | */
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25 | _markInitialized: () => void;
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26 | }
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27 | /**
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28 | * @docs-private
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29 | * @deprecated No longer necessary to apply to mixin classes. To be made private.
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30 | * @breaking-change 13.0.0
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31 | */
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32 | export declare type HasInitializedCtor = Constructor<HasInitialized>;
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33 | /** Mixin to augment a directive with an initialized property that will emits when ngOnInit ends. */
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34 | export declare function mixinInitialized<T extends Constructor<{}>>(base: T): HasInitializedCtor & T;
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