| 1 | import { EventEmitter, ElementRef, NgZone, OnInit, OnDestroy } from '@angular/core';
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| 2 | /**
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| 3 | * Visibility Observer Directive
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| 4 | *
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| 5 | * Usage:
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| 6 | *
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| 7 | * <div
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| 8 | * visibilityObserver
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| 9 | * (visible)="onVisible($event)">
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| 10 | * </div>
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| 11 | *
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| 12 | */
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| 13 | export declare class VisibilityDirective implements OnInit, OnDestroy {
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| 14 | private element;
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| 15 | private zone;
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| 16 | isVisible: boolean;
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| 17 | visible: EventEmitter<any>;
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| 18 | timeout: any;
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| 19 | constructor(element: ElementRef, zone: NgZone);
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| 20 | ngOnInit(): void;
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| 21 | ngOnDestroy(): void;
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| 22 | onVisibilityChange(): void;
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| 23 | runCheck(): void;
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| 24 | }
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