openaire-library/landingPages/landing-utils/showIdentifiers.component.ts

96 lines
3.5 KiB
TypeScript

import {Component, Input, ElementRef} from '@angular/core';
@Component({
selector: 'showIdentifiers',
template: `
<span *ngIf="countIdentifiers() > 0" class="uk-text-bold">Related identifiers:</span>
<span *ngIf="showAll && countIdentifiers() > pageSize">
<a (click)="showAll = !showAll;">View less identifiers</a>
</span>
<ng-container *ngFor="let key of getKeys(identifiers) let i=index">
<ng-container *ngIf="countSizeOfPreviousIdentifiers(i) < pageSize">
<ng-container *ngFor="let item of identifiers.get(key) let j=index">
<span *ngIf="(sizeOfPreviousIdentifiers + j) < pageSize || showAll" class="custom-external custom-icon">
<a *ngIf="key=='doi'" href="{{doiURL}}{{item}}" target="_blank">{{key}}: {{item}}</a><a
*ngIf="key=='pmc'" href="{{pmcURL}}{{item}}" target="_blank">{{key}}: {{item}}</a><a
*ngIf="key=='handle'" href="{{handleURL}}{{item}}" target="_blank">{{key}}: {{item}}</a></span><span
*ngIf="((sizeOfPreviousIdentifiers + j) < pageSize || showAll) && ((sizeOfPreviousIdentifiers + j) < countIdentifiers()-1)">{{", "}}</span>
<span *ngIf="!showAll && (sizeOfPreviousIdentifiers + j)==pageSize"> ... </span>
</ng-container>
</ng-container>
</ng-container>
<span *ngIf="!showAll && countIdentifiers() > pageSize">
<a (click)="showAll = !showAll;">
view all {{countIdentifiers() | number}} identifiers
</a>
</span>
<span *ngIf="showAll && countIdentifiers() > pageSize">
<a (click)="showAll = !showAll; scroll()">View less identifiers</a>
</span>
`
})
export class ShowIdentifiersComponent {
@Input() identifiers: Map<string, string[]>;
public doiURL: string;
public pmcURL: string;
public handleURL: string;
public showAll: boolean = false;
public sizeOfIdentifiers: number = -1;
public sizeOfPreviousIdentifiers: number = -1;
public pageSize: number = 10;
constructor (private element: ElementRef) {
this.doiURL = "https://dx.doi.org/";
this.pmcURL = "http://europepmc.org/articles/";
this.handleURL = "http://hdl.handle.net/";
}
ngOnInit() {}
public countIdentifiers(): number {
if(this.sizeOfIdentifiers < 0) {
let num: number = 0;
if(this.identifiers != undefined) {
this.identifiers.forEach(function (value, key, map) {
num += value.length;
});
}
this.sizeOfIdentifiers = num;
}
return this.sizeOfIdentifiers;
}
public countSizeOfPreviousIdentifiers(index: number): number {
let num: number = 0;
let i: number = 0;
if(this.identifiers != undefined) {
this.identifiers.forEach(function (value, key, map) {
if(i < index) {
num += value.length;
}
i++;
});
}
this.sizeOfPreviousIdentifiers= num;
return num;
}
public scroll() {
console.info("scroll into view");
if (typeof document !== 'undefined') {
this.element.nativeElement.scrollIntoView();
}
}
public getKeys( map) {
return Array.from(map.keys());
}
}