openaire-library/searchPages/searchUtils/searchFilter.component.ts

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import {
Component,
Input,
Output,
EventEmitter,
OnInit,
OnChanges,
SimpleChanges
} from '@angular/core';
import { Filter, Value} from './searchHelperClasses.class';
import {ActivatedRoute, Router} from "@angular/router";
import 'rxjs/add/operator/filter';
@Component({
selector: 'search-filter',
templateUrl: 'searchFilter.component.html'
})
export class SearchFilterComponent implements OnInit, OnChanges{
@Input() filter:Filter;
@Input() showResultCount:boolean = true;
@Input() isDisabled:boolean = false;
@Input() addShowMore:boolean = true;
@Input() showMoreInline: boolean = true;
@Input() filterValuesNum: number = 6;
public showAll:boolean = false;
public _maxCharacters:number =28;
@Output() toggleModal = new EventEmitter();
@Output() modalChange = new EventEmitter();
@Output() onFilterChange = new EventEmitter();
keyword = "";
sortBy = "name";
queryParams = {};
@Input() actionRoute:boolean = false;
@Input() quickFilter: { filter: Filter, selected: boolean, filterId: string, value: string };
sub;
public isOpen:boolean=false;
constructor (private _router: Router, private route: ActivatedRoute) {
}
ngOnDestroy() {
if(this.sub){
this.sub.unsubscribe();
}
}
ngOnInit() {
this.sub = this.route.queryParams.subscribe(params => {
this.queryParams = Object.assign({}, params);
});
this.filter.values = this.filter.values.filter(value => !value.name.toLowerCase().includes('unknown') && !value.name.toLowerCase().includes('not available'));
if(this.filter.filterType == "radio"){
this.filter.radioValue = "";
this.filter.values.forEach(value => {
if(value.selected){
this.filter.radioValue = value.id
}
});
}
}
ngOnChanges(changes: SimpleChanges) {
if(changes.filter) {
this.filter.values = this.filter.values.filter(value => !value.name.toLowerCase().includes('unknown') && !value.name.toLowerCase().includes('not available'));
if(this.filter.filterType == "radio"){
this.filter.radioValue = "";
this.filter.values.forEach(value => {
if(value.selected){
this.filter.radioValue = value.id
}
});
}
}
}
public _formatTitle(title,length){
return (((title+" ("+length+")").length >this._maxCharacters)?(title.substring(0,(this._maxCharacters - (" ("+length+")").length - ('...').length))+"..."):title)+" ("+(length>95?"100":length)+")";
}
public _formatName(value){
//let maxLineLength = 24;
let maxLineLength = 35;
//1 space after checkbox
//3 space before number + parenthesis
if(!this.showResultCount && value.name.length+1 > maxLineLength ){
return value.name.substr(0, maxLineLength -3 -1)+'...';
}
if(value.name.length+value.number.toLocaleString().length +1 +3> maxLineLength){
return value.name.substr(0, (maxLineLength- 3 -4 - value.number.toLocaleString().length))+'...';
}
return value.name;
}
filterKeywords(value){
if(this.keyword.length > 0){
if(value.toLowerCase().indexOf(this.keyword.toLowerCase()) ==-1){
return false;
}
}
return true;
}
filterChange(selected:boolean){
if(selected){
this.filter.countSelectedValues++;
}else{
this.filter.countSelectedValues--;
}
this.onFilterChange.emit({
value: this.filter
});
}
uniqueFilterChange(value: Value) {
let tmp = value.selected;
value.selected = !tmp;
if(value.selected){
this.filter.countSelectedValues = 1;
}else{
this.filter.countSelectedValues = 0;
}
this.filter.values.forEach(value => {
value.selected = (value.id == this.filter.radioValue);
});
this.onFilterChange.emit({
value: this.filter
});
}
clearFilter() {
for (var i=0; i < this.filter.values.length; i++){
this.filter.values[i].selected = false;
}
this.filter.countSelectedValues = 0;
this.onFilterChange.emit({
value: this.filter
});
this.filter.radioValue = "";
}
getSelectedAndTopValues(filter, topNum: number = 6):any{
var values = [];
for (let i=0; i < topNum; i++){
if(filter.values.length <= i) {
break;
}
values.push(filter.values[i]);
}
if(filter.countSelectedValues >0){
for (let i=topNum; i < filter.values.length; i++){
if(filter.values[i].selected){
values.push(filter.values[i]);
}
}
}
return values;
}
getSelectedValues(filter, sortBy:string = "num"):any{
var selected = [];
if(filter.countSelectedValues >0){
for (var i=0; i < filter.values.length; i++){
if(filter.values[i].selected){
selected.push(filter.values[i]);
}
}
}
if(sortBy == "name"){
selected.sort((n1,n2)=> {
if (n1.name > n2.name) {
return 1;
}
if (n1.name < n2.name) {
return -1;
}
return 0;
});
}
return selected;
}
getNotSelectedValues(filter, sortBy:string = "num"):any{
var notSselected = [];
for (var i=0; i < filter.values.length; i++){
if(!filter.values[i].selected){
notSselected.push(filter.values[i]);
}
}
if(sortBy == "name"){
notSselected.sort((n1,n2)=> {
if (n1.name > n2.name) {
return 1;
}
if (n1.name < n2.name) {
return -1;
}
return 0;
});
}
return notSselected;
}
sort(values: Value[]) {
let sorted: Value[] = values.slice();
if(this.sortBy == "name"){
sorted.sort((n1,n2)=> {
if (n1.name.toLowerCase() > n2.name.toLowerCase()) {
return 1;
}
if (n1.name < n2.name) {
return -1;
}
return 0;
});
}
return sorted;
}
toggle() {
this.isOpen = !this.isOpen;
}
getFilterName(value){
let name = value.name +" ("+ value.number.format()+")";
console.log(name);
return name;
}
getRoute(){
return this._router.url.split("?")[0];
}
getParams(filter:Filter, value:Value){
let params = Object.assign({}, this.queryParams);
let qf=false;
if(this.quickFilter && this.quickFilter.filterId == filter.filterId && this.quickFilter.selected && value.id == this.quickFilter.value){
params['qf']="false";
qf=true;
}
if(params[filter.filterId] && this.checkIfValueIndexOf(params[filter.filterId].split(','),value.id)==-1 && !qf) {
//has other values of this filter --> add this value
params[filter.filterId] = params[filter.filterId] + ',' + '"' + encodeURIComponent(value.id) + '"';
}else if(params[filter.filterId] && this.checkIfValueIndexOf(params[filter.filterId].split(','),value.id)!=-1) {
// has this filter and the value -- > remove it
let values = params[filter.filterId].split(',');
values.splice(this.checkIfValueIndexOf(values,value.id), 1);
params[filter.filterId] =values.join(',');
if(values.length == 0){
delete params[filter.filterId];
}
} else if(!qf){
//has no filter, no value --> add the value
params[filter.filterId] = '"' + encodeURIComponent(value.id) + '"' ;
}
delete params['page'];
return params;
}
checkIfValueIndexOf(array, value){
let encodedValue = encodeURIComponent(value);
if(array.indexOf(encodedValue)!=-1){
return array.indexOf(encodedValue);
}
if(array.indexOf('"'+encodedValue+'"')!=-1){
return array.indexOf('"'+encodedValue+'"');
}
return -1;
}
}