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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 { InjectionToken } from '@angular/core';
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| 9 | import { FocusTrap } from './focus-trap';
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| 10 | /** The injection token used to specify the inert strategy. */
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| 11 | export declare const FOCUS_TRAP_INERT_STRATEGY: InjectionToken<FocusTrapInertStrategy>;
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| 12 | /**
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| 13 | * A strategy that dictates how FocusTrap should prevent elements
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| 14 | * outside of the FocusTrap from being focused.
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| 15 | */
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| 16 | export interface FocusTrapInertStrategy {
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| 17 | /** Makes all elements outside focusTrap unfocusable. */
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| 18 | preventFocus(focusTrap: FocusTrap): void;
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| 19 | /** Reverts elements made unfocusable by preventFocus to their previous state. */
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| 20 | allowFocus(focusTrap: FocusTrap): void;
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| 21 | }
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