VLEX/BPM-UI/node_modules/@swimlane/ngx-datatable/esm2015/lib/services/scrollbar-helper.service.js

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
import { Inject, Injectable } from '@angular/core';
import { DOCUMENT } from '@angular/common';
/**
 * Gets the width of the scrollbar.  Nesc for windows
 * http://stackoverflow.com/a/13382873/888165
 */
export class ScrollbarHelper {
    /**
     * @param {?} document
     */
    constructor(document) {
        this.document = document;
        this.width = this.getWidth();
    }
    /**
     * @return {?}
     */
    getWidth() {
        /** @type {?} */
        const outer = this.document.createElement('div');
        outer.style.visibility = 'hidden';
        outer.style.width = '100px';
        outer.style.msOverflowStyle = 'scrollbar';
        this.document.body.appendChild(outer);
        /** @type {?} */
        const widthNoScroll = outer.offsetWidth;
        outer.style.overflow = 'scroll';
        /** @type {?} */
        const inner = this.document.createElement('div');
        inner.style.width = '100%';
        outer.appendChild(inner);
        /** @type {?} */
        const widthWithScroll = inner.offsetWidth;
        outer.parentNode.removeChild(outer);
        return widthNoScroll - widthWithScroll;
    }
}
ScrollbarHelper.decorators = [
    { type: Injectable }
];
/** @nocollapse */
ScrollbarHelper.ctorParameters = () => [
    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }
];
if (false) {
    /** @type {?} */
    ScrollbarHelper.prototype.width;
    /**
     * @type {?}
     * @private
     */
    ScrollbarHelper.prototype.document;
}
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