ferngully-aurelia-tools/dist/es2017/services/browser-service.js

Ferngully Tools for Aurelia

var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { autoinject } from 'aurelia-framework';
import { EventAggregator } from 'aurelia-event-aggregator';
const windowResizeChannel = "window resize";
let BrowserService = class BrowserService {
    constructor(eventAggregator) {
        this.eventAggregator = eventAggregator;
        this.escapeEl = document.createElement('textarea');
        this.onWindowResize(this.windowResizeHandler.bind(this));
    }
    registerForWindowResize(callback) {
        return this.eventAggregator.subscribe(windowResizeChannel, callback);
    }
    windowResizeHandler(event) {
        this.eventAggregator.publish(windowResizeChannel, event);
    }
    onWindowResize(fun) {
        if (fun === undefined)
            return;
        let oldresize = window.onresize;
        window.onresize = (e) => {
            if (typeof oldresize == 'function')
                oldresize(e);
            return fun(e);
        };
    }
    verticalScrollBarIsShowing() {
        return (window.innerWidth - document.body.clientWidth) > 0;
    }
    scrollbarWidth() {
        if (!this._scrollbarWidth) {
            var scrollDiv = document.createElement("div");
            scrollDiv.style.width = "100px";
            scrollDiv.style.height = "100px";
            scrollDiv.style.overflow = "scroll";
            scrollDiv.style.position = "absolute";
            scrollDiv.style.top = "-9999px;";
            document.body.appendChild(scrollDiv);
            this._scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth;
            document.body.removeChild(scrollDiv);
        }
        return this._scrollbarWidth;
    }
    escapeHtml(unEscapedString) {
        this.escapeEl.textContent = unEscapedString ? unEscapedString : "";
        return this.escapeEl.innerHTML;
    }
    ;
    unEscapeHtml(escapedString) {
        this.escapeEl.innerHTML = escapedString ? escapedString : "";
        return this.escapeEl.textContent == null ? "" : this.escapeEl.textContent;
    }
    ;
};
BrowserService = __decorate([
    autoinject,
    __metadata("design:paramtypes", [EventAggregator])
], BrowserService);
export { BrowserService };
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