ngx-free-fullpage/esm2015/lib/ngx-fullpage.service.js

ngx-free-fullpage is a free-for-profit angular library that gives you all the tools you need to implement a fullpage scroll effect. This library hasn't been developed in order to substitute the current ngx-fullpage, this library is an alternative for thos

import { __decorate } from "tslib";
import { Injectable } from '@angular/core';
import * as i0 from "@angular/core";
let NgxFullpageService = class NgxFullpageService {
    constructor() {
        this.section = 0;
        this.scrollHeight = 0;
        this.goNext = () => (this.scroll(1));
        this.goPrev = () => (this.scroll(-1));
        this.goTo = (section) => (this.scroll(section - this.section));
        this.adjustSection = (section) => this.setNumberInRange(section, 0, this.sectionsNumber - 1);
    }
    addWrapper(wrapper, section) {
        if (this.wrapper)
            throw new Error('There is already a wrapper defined');
        this.wrapper = wrapper;
        if (section > 0)
            this.goTo(section);
    }
    scroll(direction) {
        this.sectionsNumber = (this.wrapper.nativeElement.scrollHeight / this.wrapper.nativeElement.offsetHeight);
        this.scrollHeight += direction * this.wrapper.nativeElement.offsetHeight;
        this.scrollHeight = this.adjustScroll(this.scrollHeight);
        this.wrapper.nativeElement.scroll({ top: this.scrollHeight });
        this.section = this.adjustSection(Math.round(this.scrollHeight / this.wrapper.nativeElement.offsetHeight));
    }
    goLast() {
        this.sectionsNumber = this.sectionsNumber || (this.wrapper.nativeElement.scrollHeight / this.wrapper.nativeElement.offsetHeight);
        this.goTo(this.sectionsNumber - 1);
    }
    adjustScroll(scroll) {
        let maxScroll = (this.sectionsNumber - 1) * this.wrapper.nativeElement.offsetHeight;
        return this.setNumberInRange(scroll, 0, maxScroll);
    }
    setNumberInRange(n, min, max) {
        return Math.min(Math.max(n, min), max);
    }
};
NgxFullpageService.ɵprov = i0.ɵɵdefineInjectable({ factory: function NgxFullpageService_Factory() { return new NgxFullpageService(); }, token: NgxFullpageService, providedIn: "root" });
NgxFullpageService = __decorate([
    Injectable({
        providedIn: 'root'
    })
], NgxFullpageService);
export { NgxFullpageService };
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VySW5SYW5nZShuIDogbnVtYmVyLCBtaW4gOiBudW1iZXIsIG1heCA6IG51bWJlcikge1xuICAgIHJldHVybiBNYXRoLm1pbihNYXRoLm1heChuLCBtaW4pLCBtYXgpO1xuICB9XG5cbn1cbiJdfQ==