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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/* tslint:disable:array-type member-access variable-name typedef
only-arrow-functions directive-class-suffix component-class-suffix
component-selector no-unnecessary-type-assertion arrow-parens*/
import {ElementRef, Injectable} from '@angular/core';
import {OriginConnectionPosition, OverlayConnectionPosition} from './connected-position';
import {ConnectedPositionStrategy} from './connected-position-strategy';
import {FreePositionStrategy} from './free-position-strategy';
import {GlobalPositionStrategy} from './global-position-strategy';
import {ViewportRuler} from './viewport-ruler';
/** Builder for overlay position strategy. */
@Injectable()
export class OverlayPositionBuilder {
constructor(private _viewportRuler: ViewportRuler) {}
/**
* Creates a free position strategy
*/
free(): FreePositionStrategy {
return new FreePositionStrategy();
}
/**
* Creates a global position strategy.
*/
global(): GlobalPositionStrategy {
return new GlobalPositionStrategy();
}
/**
* Creates a relative position strategy.
* @param elementRef
* @param originPos
* @param overlayPos
*/
connectedTo(
elementRef: ElementRef, originPos: OriginConnectionPosition,
overlayPos: OverlayConnectionPosition): ConnectedPositionStrategy {
return new ConnectedPositionStrategy(
elementRef, originPos, overlayPos, this._viewportRuler);
}
}
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