openaire-library/utils/pagingFormatter.component.ts

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import {Component, Input} from '@angular/core';
import {Router, ActivatedRoute} from '@angular/router';
import {DomSanitizer} from '@angular/platform-browser';
//Usage Example <paging [currentPage]="page" [totalResults]="resultsNum" [term]="keyword"> </paging>
import {RouterHelper} from './routerHelper.class';
import {EnvProperties} from './properties/env-properties';
@Component({
selector: 'paging',
template: `
<ul *ngIf=" ( getTotalPages() > 0 ) && (getTotalPages() > 1) && ( 0 < currentPage && currentPage <= getTotalPages() ) " class="uk-pagination uk-margin-bottom-remove">
<!--li *ngIf=" currentPage > 1" ><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',1)" routerLinkActive="router-link-active" [routerLink]=baseUrl aria-label="Previous">
<span><span class="uk-icon"><svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" icon="chevron-left" ratio="1"><polyline fill="none" stroke="#000" stroke-width="1.03" points="13 16 7 10 13 4"></polyline></svg></span></span></a></li-->
<li *ngIf=" currentPage > 1" ><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',(currentPage - 1))" routerLinkActive="router-link-active" [routerLink]=baseUrl aria-label="Previous">
<span><span class="uk-icon"><svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" icon="chevron-left" ratio="1"><polyline fill="none" stroke="#000" stroke-width="1.03" points="13 16 7 10 13 4"></polyline></svg></span></span></a></li>
<!--<li *ngIf=" currentPage > 1"><a [href]="onPage((currentPage -1))">\<</a></li>-->
<li *ngIf=" currentPage -2 > 0"><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',(currentPage - 2))" routerLinkActive="router-link-active" [routerLink]=baseUrl>{{(currentPage -2) | number}}</a></li>
<li *ngIf=" currentPage -1 > 0 "><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',(currentPage - 1))" routerLinkActive="router-link-active" [routerLink]=baseUrl>{{(currentPage -1) | number}}</a></li>
<li class="uk-active"><span >{{currentPage | number}}</span></li>
<li *ngIf=" currentPage +1 <= getTotalPages() "><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',(currentPage +1))" routerLinkActive="router-link-active" [routerLink]=baseUrl>{{(currentPage +1) | number}}</a></li>
<li *ngIf=" currentPage +2 <= getTotalPages() "><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',(currentPage +2))" routerLinkActive="router-link-active" [routerLink]=baseUrl>{{(currentPage +2) | number}}</a></li>
<li *ngIf=" (currentPage -2 <= 0)&&(currentPage +3 <= getTotalPages()) "><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',(currentPage +3))" routerLinkActive="router-link-active" [routerLink]=baseUrl>{{(currentPage +3) | number}}</a></li>
<li *ngIf=" (currentPage -1 <= 0)&&(currentPage +4 <= getTotalPages()) "><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',(currentPage +4))" routerLinkActive="router-link-active" [routerLink]=baseUrl >{{(currentPage +4) | number}}</a></li>
<li *ngIf="getTotalPages() > currentPage"><a [queryParams]="routerHelper.createQueryParamsPaging(parameterNames,parameterValues,'page',(currentPage + 1))" routerLinkActive="router-link-active" [routerLink]=baseUrl aria-label="Next">
<span class="uk-icon">
<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" icon="chevron-right" ratio="1"><polyline fill="none" stroke="#000" stroke-width="1.03" points="7 4 13 10 7 16"></polyline></svg>
</span>
</a></li>
</ul>
`
})
export class PagingFormatter {
@Input() currentPage: number = 1;
@Input() size: number=10;
@Input() totalResults: number = 10;
@Input() baseUrl:string="";
@Input() parameterNames:string[];
@Input() parameterValues:string[];
private limit: number;
properties:EnvProperties;
public routerHelper:RouterHelper = new RouterHelper();
constructor (private route: ActivatedRoute, private _router: Router, private sanitizer:DomSanitizer) {
}
ngOnInit() {
this.route.data
.subscribe((data: { envSpecific: EnvProperties }) => {
this.properties = data.envSpecific;
this.limit = this.properties.pagingLimit;
}
);
}
getTotalPages(){
let total: number = 0;
//let limit: number = 20;//OpenaireProperties.getPagingLimit();
var i:number =parseInt(''+(this.totalResults/this.size));
total = (((this.totalResults/this.size) == i )? i :(i+1)) ;
if((this.currentPage == this.limit) && (total > this.limit)) {
total = this.limit;
} else if((this.currentPage > this.limit) && (total > this.limit)) {
total = this.currentPage;
}
return total;
}
// onPage(pageNum: number){
// return this.sanitizer.bypassSecurityTrustUrl( this.baseUrl+((this.baseUrl.indexOf("?") > -1 )?'&':'?')+ "page=" + (pageNum));
//
// }
}