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import {AfterContentInit, Component, ContentChildren, Input, OnInit, QueryList} from "@angular/core";
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import {SlideComponent} from "./slide.component";
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import {BehaviorSubject, Observable} from 'rxjs';
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@Component({
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selector: 'fp-slider',
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template: `
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<div class="menu">
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<img class="logo" *ngIf="logoURL" [src]="logoURL">
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<a *ngIf="stateValue > 1" class="previous" (click)="onClick(stateValue - 1)">
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<icon name="arrow_up"></icon>
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</a>
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<nav>
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<ul>
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<li *ngFor="let slide of slides.toArray();let i=index" [class.uk-active]="i === (stateValue - 1)">
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<a (click)="onClick(i + 1)"></a>
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</li>
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</ul>
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</nav>
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<a *ngIf="stateValue < slides.length" class="next" (click)="onClick(stateValue + 1)">
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<icon name="arrow_down"></icon>
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</a>
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</div>
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<div [ngClass]="topBar" class="top-bar"></div>
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<section (wheel)="onWheel($event)" [class.has-footer]="hasFooter && state.value === slides.length">
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<ng-content></ng-content>
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</section>
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<bottom *ngIf="hasFooter && state.value === slides.length" class="bottom-bar uk-animation-slide-bottom"
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[shortView]="true" [ngClass]="footerClass"
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[showOpenaire]="true" [darkBackground]="false"></bottom>
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`,
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styleUrls: ['full-page-slider.component.css']
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})
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export class FullPageSliderComponent implements AfterContentInit {
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@ContentChildren(SlideComponent) slides: QueryList<SlideComponent>;
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@Input()
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public initSlide = 1;
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@Input()
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public logoURL;
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@Input() topBar: string = null;
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@Input() hasFooter: boolean = null;
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@Input() footerClass: string;
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public animate: boolean = false;
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public state: BehaviorSubject<number> = new BehaviorSubject<number>(0);
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ngAfterContentInit() {
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this.state.next(this.initSlide);
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this.setSlides(this.state.value);
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}
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setSlides(state = 1) {
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this.slides.forEach((slide, index) => {
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slide.state = state;
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slide.y = -50 + (index + 1) * 200 - state * 200;
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});
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}
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onWheel(event) {
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if (!this.animate) {
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this.animate = true;
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if (event.deltaY > 0 && (this.state.value < this.slides.length)) {
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this.state.next(+this.state.value + 1);
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this.setSlides(this.state.value);
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setTimeout(() => {
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this.animate = false;
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}, 500);
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} else if (event.deltaY < 0 && (this.state.value !== 1)) {
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this.state.next(this.state.value - 1);
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this.setSlides(this.state.value);
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setTimeout(() => {
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this.animate = false;
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}, 500);
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} else {
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this.animate = false;
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}
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}
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}
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public onClick(index: number) {
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if (!this.animate) {
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this.animate = true;
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this.state.next(index);
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this.setSlides(this.state.value);
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setTimeout(() => {
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this.animate = false;
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}, 500);
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}
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}
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public get stateValue() {
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return this.state.value;
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}
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public get stateAsObservable(): Observable<number> {
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return this.state.asObservable();
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}
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}
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