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k.triantaf
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import {switchMap, distinctUntilChanged, debounceTime} from 'rxjs/operators';
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import {Component, ElementRef, Input, Output, EventEmitter, SimpleChange} from '@angular/core';
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import {Observable, Subject} from 'rxjs';
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import {EntitiesSearchService} from './entitySearch.service';
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import{EnvProperties} from '../properties/env-properties';
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import {StringUtils} from "../string-utils.class";
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//Usage example
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//<static-autocomplete [(filtered)] =filtered [(selected)] =selected placeHolderMessage = "Search for countries" title = "Countries:" (keywordChange)="keywordChanged($event)"></static-autocomplete>
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@Component({
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selector: 'entities-autocomplete',
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host: {
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'(document:click)': 'handleClick($event)',
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},
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template: `
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<div class="custom-autocomplete">
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<div *ngIf = "showSelected && selectedValue != ''">
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<div class="uk-alert-default uk-grid uk-margin-small-left uk-margin-remove-bottom uk-margin-remove-left" data-uk-alert="" *ngFor="let item of selected" [title]="showItem(item)" >
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<div class="uk-width-expand uk-padding-remove-left" >{{showItem(item)}} </div>
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<div (click)="remove(item)" aria-hidden="true" title="Remove selection" class="uk-padding-remove-left"> <span class="clickable uk-icon">
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<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" icon="close" ratio="1"><path fill="none" stroke="#000" stroke-width="1.06" d="M16,16 L4,4"></path><path fill="none" stroke="#000" stroke-width="1.06" d="M16,4 L4,16"></path></svg>
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</span> </div>
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</div>
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</div>
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<input *ngIf = "showInput" type="text" class="auto-complete-input validate filter-input input-sm form-control uk-input " [placeholder]=placeHolderMessage [(ngModel)]=keyword (keyup)=search() (blur)="keyword = ''" >
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<!--span [style.display]="showLoading ? 'inline' : 'none'" class="uk-alert uk-alert-primary" data-uk-alert=""> <i class="uk-icon-spinner"></i> Loading... </span>
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<span *ngIf="warningMessage.length > 0" class="uk-alert uk-alert-warning" data-uk-alert=""> {{warningMessage}} <a href="" class="uk-alert-close uk-close"></a></span-->
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<div *ngIf="focus && showInput" class="uk-dropdown" aria-expanded="true" style="display:block" >
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<ul class="uk-nav uk-nav-autocomplete uk-autocomplete-results" >
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<li>
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<span *ngIf="!_search.ready" class="uk-alert uk-alert-primary" data-uk-alert=""> <i class="uk-icon-spinner"></i> Loading..... </span>
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<span *ngIf="warningMessage.length > 0" class="uk-alert uk-alert-warning" data-uk-alert="">{{warningMessage}}</span>
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<span *ngIf="results > 0" > {{results | number}} results found:</span>
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<!--span *ngIf="results == 0 && !showLoading" class="uk-alert uk-alert-primary" data-uk-alert=""> No results found</span-->
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</li>
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<li *ngFor=" let item of filtered | async">
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<a *ngIf= "item.id !=-1 && item.id !=-2" (click)="select(item)" [title]="showItem(item)" style="text-overflow: ellipsis; ">{{showItem(item)}}</a>
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<span *ngIf= "item.id ==-1" class="uk-alert uk-alert-primary" data-uk-alert=""> No results found</span>
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<span *ngIf= "item.id ==-2" class="uk-alert uk-alert-warning" data-uk-alert=""> An error occured</span>
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</li>
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</ul>
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</div>
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</div>
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`
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})
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export class EntitiesAutocompleteComponent {
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@Input() placeHolderMessage = "Search for entries";
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@Input() title = "Autocomplete";
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@Output() addItem = new EventEmitter(); // when selected list changes update parent component
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@Output() selectedValueChanged = new EventEmitter(); // when changed a method for filtering will be called
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@Output() updateValueLabel = new EventEmitter(); //when the value is id sends an event to update the value (for meta tags)
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@Input() public list = []; // the entries resulted after filtering function
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@Input() public selected = []; // the entries selected from user
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@Input() public keywordlimit = 3; // the minimum length of keyword
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@Input() public showSelected = true; // the minimum length of keyword
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@Input() public multipleSelections:boolean = true;
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@Input() public allowDuplicates:boolean = false;
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@Input() public selectedValue:string = '';
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@Input() public keyword = '';
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@Input() public fieldId:string ;
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@Input() public properties:EnvProperties ;
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public currentFieldId: string ;
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public currentFunderId: string ;
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public warningMessage = "";
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public infoMessage = "";
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public tries = 0;
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public showInput = true;
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public sub;
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public done = false;
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public showLoading:boolean = false;
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public searchTermStream = new Subject<string>();
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filtered: Observable<{}> ;
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// public numFilteredResults:number = 0;
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@Input() public funderId:string;
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@Input() public entityType:string ;
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@Input() public depositType:string ;
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public results = 0;
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public focus:boolean = false;
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constructor (public _search:EntitiesSearchService, private myElement: ElementRef) {
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this.currentFieldId=this.fieldId;
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this.currentFunderId=this.funderId;
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this.initialize();
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}
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ngOnChanges(changes: {[propKey: string]: SimpleChange}) {
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if(this.currentFieldId!=this.fieldId){ //this is going to be called when
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this.currentFieldId=this.fieldId;
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this.initialize();
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}else if(this.currentFunderId!=this.funderId){
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this.currentFunderId=this.funderId;
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this.initialize();
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}
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}
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private initialize(){
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this.showInput = true;
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/* if(this.entityType == "project" && this.funderId ){
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this.filtered = this.searchTermStream.pipe(
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debounceTime(300),distinctUntilChanged(),
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switchMap((term: string) => {
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//console.log("funder"+this.funderId);
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var results = this._search.searchProjectsByFunder(term, (this.funderId == "0"?"":encodeURIComponent(this.funderId)), this.properties);
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this.showLoading = false;
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this.results = results.length;
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return results;
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}),);
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}else */
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if(this.entityType == "organization" && this.depositType ){
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this.filtered = this.searchTermStream.pipe(
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debounceTime(300),distinctUntilChanged(),
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switchMap((term: string) => {
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var results = this._search.searchByDepositType(term, this.depositType, this.properties);
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this.showLoading = false;
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this.results = results.length;
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return results;
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}),);
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}else{
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this.filtered = this.searchTermStream.pipe(
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debounceTime(300),
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distinctUntilChanged(),
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switchMap((term: string) => {
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var results = this._search.searchByType(StringUtils.URIEncode(term), this.entityType, this.properties);
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this.showLoading = false;
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this.results = results.length;
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return results;
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}),);
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this.getSelectedNameFromGivenId();
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}
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}
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ngOnDestroy(){
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if(this.sub){
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this.sub.unsubscribe();
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}
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}
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search() {
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this.infoMessage = "";
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if(this.keyword == ""){
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this.tries = 0;
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this.warningMessage = "";
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} else if(this.keyword && this.keyword.length < this.keywordlimit){
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this.tries++;
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if(this.tries == this.keywordlimit -1 ){
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this.warningMessage = "Type at least " + this.keywordlimit + " characters";
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this.tries = 0;
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}
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}else{
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this.tries = 0;
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this.warningMessage = "";
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this.searchTermStream.next(this.keyword);
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// if(this.numFilteredResults ==0){
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this.showLoading = true;
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this.focus = true;
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// }
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}
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}
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remove(item:any){
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var index:number =this.checkIfExists(item,this.selected);
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if (index > -1) {
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this.selected.splice(index, 1);
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}
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if(!this.multipleSelections && this.selected.length == 0 ){
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this.showInput = true;
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this.selectedValue = "";
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this.selectedValueChanged.emit({
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value: this.selectedValue
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});
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this.updateValueLabel.emit({
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value:""
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});
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}
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}
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select(item:any){
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if(this.multipleSelections){
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var index:number =this.checkIfExists(item,this.selected);
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if (index > -1 && !this.allowDuplicates) {
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// this.keyword = "";
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// this.filtered.splice(0, this.filtered.length);
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this.focus=false;
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return;
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}
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else{
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this.selected.push(item);
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// this.keyword = "";
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// this.filtered.splice(0, this.filtered.length);
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this.addItem.emit({
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value: item
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});
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this.focus=false;
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}
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}else{
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this.selected.splice(0, this.selected.length);
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this.selected.push(item);
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// this.filtered.splice(0, this.filtered.length);
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this.keyword = "";
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this.showInput = false;
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this.selectedValue = item.id;
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this.selectedValueChanged.emit({
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value: this.selectedValue
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});
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this.updateValueLabel.emit({
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value:this.showItem(item)
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});
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this.focus=false;
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}
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}
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private checkIfExists(item:any,list):number{
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if(item.concept && item.concept.id ){
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for (var _i = 0; _i < list.length; _i++) {
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let itemInList = list[_i];
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if(item.concept.id == itemInList.concept.id){
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return _i;
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}
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}
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}else if(item.id){
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for (var _i = 0; _i < list.length; _i++) {
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let itemInList = list[_i];
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if(item.id == itemInList.id){
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return _i;
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}
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}
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}
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return -1;
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}
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showItem(item:any):string{
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//console.log(item);
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if(!item){
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return "[No title available]"
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}
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else if (item.projectName || item.projectAcronym || item.code){ //project
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return ((item.projectAcronym)?"["+item.projectAcronym+"] ":"")+item.projectName+((item.code)?" ("+item.code+")":"");
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}else if (item.name){ //search
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return item.name;
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}else if( item.concept && item.concept.label){ //context
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return item.concept.label;
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}else if (item.label){ //simple
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return item.label;
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}
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}
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truncate(str:string, size:number):string{
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if(str == null){return "";}
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return (str.length > size)?str.substr(0,size)+'...':str;
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}
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private getSelectedNameFromGivenId(){
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this.showInput = true;
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if(this.selectedValue && this.selectedValue.length > 0 ){
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console.log(this.selectedValue+" "+this.entityType )
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this.sub = this._search.fetchByType(this.selectedValue,this.entityType, this.properties).subscribe(
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data => {
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this.selected.push( data[0]);
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this.updateValueLabel.emit({
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value:this.showItem(this.selected[0])
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});
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this.showInput = false;
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},
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err => {
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//console.log("An error occured"));
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this.handleError("Error getting results of type: "+this.entityType+" with id: "+this.selectedValue, err);
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}
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);
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}
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}
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handleClick(event){
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var clickedComponent = event.target;
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var inside = false;
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do {
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if (clickedComponent === this.myElement.nativeElement) {
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inside = true;
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}
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clickedComponent = clickedComponent.parentNode;
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} while (clickedComponent);
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if(!inside){
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this.keyword = "";
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// this.numFilteredResults = 0;
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this.searchTermStream.next(this.keyword);
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this.focus=false;
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}
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}
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private handleError(message: string, error) {
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console.error("Autocomplete (component): "+message, error);
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}
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}
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