233 lines
8.7 KiB
TypeScript
233 lines
8.7 KiB
TypeScript
import {Component} from '@angular/core';
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import {EnvProperties} from '../openaireLibrary/utils/properties/env-properties';
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import {ActivatedRoute, Router} from "@angular/router";
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import {CommunityService} from "../openaireLibrary/connect/community/community.service";
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import {HelperService} from "../openaireLibrary/utils/helper/helper.service";
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import {Meta, Title} from "@angular/platform-browser";
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import {SEOService} from "../openaireLibrary/sharedComponents/SEO/SEO.service";
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import {PiwikService} from "../openaireLibrary/utils/piwik/piwik.service";
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import {PiwikHelper} from "../utils/piwikHelper";
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import {StringUtils} from "../openaireLibrary/utils/string-utils.class";
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import {Breadcrumb} from "../openaireLibrary/utils/breadcrumbs/breadcrumbs.component";
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import {properties} from "../../environments/environment";
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import {Subscriber, Subscription} from "rxjs";
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@Component({
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selector: 'subjects',
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template: `
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<schema2jsonld *ngIf="url" [URL]="url" [name]="pageTitle" type="other"></schema2jsonld>
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<div style="min-height: 650px;">
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<div class="uk-container uk-container-large uk-section uk-section-small uk-padding-remove-bottom">
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<div class="uk-padding-small uk-padding-remove-horizontal">
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<breadcrumbs [breadcrumbs]="breadcrumbs"></breadcrumbs>
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</div>
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</div>
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<div class="uk-container uk-container-large uk-section uk-section-small">
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<div *ngIf="showLoading" class="uk-margin-large">
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<div class="uk-animation-fade uk-margin-top uk-width-1-1" role="alert">
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<span class="loading-gif uk-align-center"></span>
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</div>
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</div>
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<div *ngIf="!showLoading">
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<h1 class="uk-margin-top">
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Subjects
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</h1>
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<div *ngIf="pageContents && pageContents['top'] && pageContents['top'].length > 0">
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<helper *ngIf="pageContents && pageContents['top'] && pageContents['top'].length > 0"
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[texts]="pageContents['top']">
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</helper>
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</div>
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<ng-container *ngIf="groupedSubjects?.length">
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<div class="uk-padding uk-margin-top">
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<ul class="uk-nav uk-nav-default uk-flex uk-flex-center uk-flex-wrap">
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<li *ngFor="let item of groupedSubjects; let i = index;" class="uk-margin-left uk-margin-right"
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[class]="index == i ? 'uk-active':''" (click)="changeDisplayedSubjects(i, item)">
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<a class="uk-padding-remove">{{item.group}}</a>
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</li>
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</ul>
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</div>
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<!-- View for 'All' -->
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<div *ngIf="index == 0" class="uk-margin-large-top uk-grid uk-child-width-1-4@m" uk-grid>
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<div *ngFor="let item of groupedSubjects.slice(1); let i = index;">
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<div>
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<h6>{{item.group}}</h6>
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<div *ngFor="let subItem of item.data.slice(0, subjectsLimit)" class="uk-margin-small-bottom">
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<a [queryParams]="{f0:'resultsubject',fv0:createParams(subItem)}" class="uk-link-text"
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routerLinkActive="router-link-active" [routerLink]="properties.searchLinkToAdvancedResults"
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[attr.uk-tooltip]="subItem.length > maxCharacters ? subItem :''">
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<span>{{subItem.length > maxCharacters ? subItem.substring(0,maxCharacters)+'...' : subItem}}</span>
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</a>
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</div>
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<div *ngIf="item.data.length > subjectsLimit">
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<a (click)="changeDisplayedSubjects(i+1, item)" class="view-more-less-link">
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View all
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</a>
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</div>
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</div>
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</div>
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</div>
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<!-- View for a single group -->
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<div *ngIf="index != 0" class="uk-margin-large-top">
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<div>
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<div>
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<h6>{{groupedSubjects[index].group}}</h6>
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<ng-container *ngIf="subjectsColumns?.length == 0; else elseBlock">
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<div *ngFor="let subItem of groupedSubjects[index].data" class="uk-margin-small-bottom">
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<a [queryParams]="{f0:'resultsubject',fv0:createParams(subItem)}" class="uk-link-text"
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routerLinkActive="router-link-active" [routerLink]="properties.searchLinkToAdvancedResults">
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<span>{{subItem.length > maxCharacters ? subItem.substring(0,maxCharacters)+'...' : subItem}}</span>
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</a>
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</div>
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</ng-container>
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<ng-template #elseBlock>
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<div class="uk-grid uk-child-width-1-4@m" uk-grid>
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<div *ngFor="let group of subjectsColumns">
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<div *ngFor="let subItem of group" class="uk-margin-small-bottom">
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<a [queryParams]="{f0:'resultsubject',fv0:createParams(subItem)}" class="uk-link-text"
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routerLinkActive="router-link-active" [routerLink]="properties.searchLinkToAdvancedResults">
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<span>{{subItem.length > maxCharacters ? subItem.substring(0,maxCharacters)+'...' : subItem}}</span>
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</a>
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</div>
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</div>
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</div>
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</ng-template>
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</div>
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</div>
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</div>
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</ng-container>
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</div>
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</div>
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</div>
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`
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})
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export class SubjectsComponent {
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public subjects: string[];
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public communityId = null;
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public showLoading = true;
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public properties: EnvProperties = properties;
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public pageContents = null;
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public divContents = null;
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public groupedSubjects = [];
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public index: number = 0;
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public subjectsLimit: number = 6;
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public viewAll: boolean = false;
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public maxCharacters: number = 25;
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public subjectsColumns = [];
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public url: string = null;
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public pageTitle: string = "Subjects";
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public breadcrumbs: Breadcrumb[] = [{name: 'Home', route: '/'}, {name: 'About - Subjects'}];
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subs: Subscription[] = [];
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constructor(private route: ActivatedRoute,
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private communityService: CommunityService,
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private _router: Router,
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private helper: HelperService,
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private _meta: Meta,
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private _title: Title,
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private seoService: SEOService,
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private _piwikService: PiwikService) {
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}
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ngOnInit() {
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this.showLoading = true;
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this.url = this.properties.domain + this._router.url;
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this.seoService.createLinkForCanonicalURL(this.url);
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this.updateUrl(this.url);
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this.updateTitle(this.pageTitle);
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this.updateDescription("OpenAIRE - Connect, Community Gateway, research community");
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this.subs.push(this.communityService.getCommunityAsObservable().subscribe(community => {
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if (community) {
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this.communityId = community.communityId;
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if (this.properties.enablePiwikTrack && (typeof document !== 'undefined')) {
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this.subs.push(this._piwikService.trackView(this.properties, this.pageTitle, PiwikHelper.getSiteId(this.communityId)).subscribe());
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}
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//this.getDivContents();
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this.getPageContents();
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this.subjects = community.subjects;
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this.subjects.sort();
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this.groupSubjects();
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this.showLoading = false;
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}
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}));
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}
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createParams(param) {
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return StringUtils.quote(StringUtils.URIEncode(param));
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}
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ngOnDestroy() {
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for (let sub of this.subs) {
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if (sub instanceof Subscriber) {
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sub.unsubscribe();
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}
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}
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}
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private getPageContents() {
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this.subs.push(this.helper.getPageHelpContents(this.properties, this.communityId, this._router.url).subscribe(contents => {
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this.pageContents = contents;
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}));
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}
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private getDivContents() {
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this.subs.push(this.helper.getDivHelpContents(this.properties, this.communityId, this._router.url).subscribe(contents => {
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this.divContents = contents;
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}));
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}
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private groupSubjects() {
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if(this.subjects.length === 0) {
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return [];
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}
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this.groupedSubjects = Object.values(
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this.subjects.reduce((acc, subject) => {
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let firstLetter = subject[0].toLocaleUpperCase();
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if(!acc[firstLetter]) {
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acc[firstLetter] = {group: firstLetter, data: [subject]};
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} else {
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acc[firstLetter].data.push(subject);
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}
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return acc;
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},{})
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)
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if(this.subjects.length > 1) {
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this.groupedSubjects.unshift({group: 'All', data: this.subjects});
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}
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}
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public changeDisplayedSubjects(i, group) {
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this.subjectsColumns = [];
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this.index = i;
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if(group.data.length > this.subjectsLimit && group.group != 'All') {
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this.divideSubjects(group);
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}
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}
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public divideSubjects(group) {
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let columns = [];
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for(let i = 0; i < (group.data.length / this.subjectsLimit); i++) {
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columns.push(group.data.slice(i * this.subjectsLimit, ((i + 1) * this.subjectsLimit)));
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}
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this.subjectsColumns = columns;
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}
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private updateDescription(description: string) {
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this._meta.updateTag({content: description}, "name='description'");
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this._meta.updateTag({content: description}, "property='og:description'");
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}
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private updateTitle(title: string) {
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var _title = ((title.length > 50) ? title.substring(0, 50) : title);
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this._title.setTitle(_title);
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this._meta.updateTag({content: _title}, "property='og:title'");
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}
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private updateUrl(url: string) {
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this._meta.updateTag({content: url}, "property='og:url'");
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}
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}
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