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/* 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 {PositionStrategy} from './position-strategy';
/**
* Free position strategy for overlay without origin
* @author lingyi.zcs
*/
export class FreePositionStrategy implements PositionStrategy {
private _wrapper: HTMLElement;
// private _cssPosition: string = '';
// private _top: string = '';
// private _left: string = '';
// private _width: string = '';
// private _height: string = '';
// cssPosition(value: string) {
// this._cssPosition = value;
// return this;
// }
// top(value: number | string): this {
// this._top = this._toCssValue(value);
// return this;
// }
// left(value: number | string): this {
// this._left = this._toCssValue(value);
// return this;
// }
// width(value: number | string): this {
// this._width = this._toCssValue(value);
// return this;
// }
// height(value: number | string): this {
// this._height = this._toCssValue(value);
// return this;
// }
/**
* Apply the position to the element. (NOTE: normally will triggered by
* scrolling)
* @docs-private
*
* @param element Element to which to apply the CSS.
* @returns Resolved when the styles have been applied.
*/
apply(element: HTMLElement): void {
if (!this._wrapper) {
this._wrapper = document.createElement('div');
this._wrapper.classList.add('cdk-free-overlay-wrapper');
element.parentNode.insertBefore(this._wrapper, element);
this._wrapper.appendChild(element);
// // Initialized style once
// const style = element.style;
// style.position = this._cssPosition;
// style.top = this._top;
// style.left = this._left;
// style.width = this._width;
// style.height = this._height;
}
// TODO: do somethings while triggered (eg. by scrolling)
}
/**
* Removes the wrapper element from the DOM.
*/
dispose(): void {
if (this._wrapper && this._wrapper.parentNode) {
this._wrapper.parentNode.removeChild(this._wrapper);
this._wrapper = null;
}
}
// private _toCssValue(value: number | string) {
// return typeof value === 'number' ? value + 'px' : value;
// }
}
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