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177 lines (138 loc) · 4.84 KB
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/*
* API List & Filter Component
*
* A page that displays a formatted list of the public Angular API entities.
* Clicking on a list item triggers navigation to the corresponding API entity document.
* Can add/remove API entity links based on filter settings.
*/
import { Component, ElementRef, OnInit, ViewChild } from '@angular/core';
import { Observable } from 'rxjs/Observable';
import { ReplaySubject } from 'rxjs/ReplaySubject';
import { combineLatest } from 'rxjs/observable/combineLatest';
import { LocationService } from 'app/shared/location.service';
import { ApiItem, ApiSection, ApiService } from './api.service';
import { Option } from 'app/shared/select/select.component';
class SearchCriteria {
query? = '';
status? = 'all';
type? = 'all';
}
@Component({
selector: 'aio-api-list',
templateUrl: './api-list.component.html'
})
export class ApiListComponent implements OnInit {
filteredSections: Observable<ApiSection[]>;
showStatusMenu = false;
showTypeMenu = false;
private criteriaSubject = new ReplaySubject<SearchCriteria>(1);
private searchCriteria = new SearchCriteria();
status: Option;
type: Option;
// API types
types: Option[] = [
{ value: 'all', title: 'All' },
{ value: 'directive', title: 'Directive' },
{ value: 'pipe', title: 'Pipe'},
{ value: 'decorator', title: 'Decorator' },
{ value: 'class', title: 'Class' },
{ value: 'interface', title: 'Interface' },
{ value: 'function', title: 'Function' },
{ value: 'enum', title: 'Enum' },
{ value: 'type-alias', title: 'Type Alias' },
{ value: 'const', title: 'Const'}
];
statuses: Option[] = [
{ value: 'all', title: 'All' },
{ value: 'stable', title: 'Stable' },
{ value: 'deprecated', title: 'Deprecated' },
{ value: 'experimental', title: 'Experimental' },
{ value: 'security-risk', title: 'Security Risk' }
];
@ViewChild('filter') queryEl: ElementRef;
constructor(
private apiService: ApiService,
private locationService: LocationService) { }
ngOnInit() {
this.filteredSections = combineLatest(
this.apiService.sections,
this.criteriaSubject,
(sections, criteria) => {
return sections.filter(section => this.filterSection(section, criteria));
}
);
this.initializeSearchCriteria();
}
// Todo: may need to debounce as the original did
// although there shouldn't be any perf consequences if we don't
setQuery(query: string) {
this.setSearchCriteria({query: (query || '').toLowerCase().trim() });
}
setStatus(status: Option) {
this.toggleStatusMenu();
this.status = status;
this.setSearchCriteria({status: status.value});
}
setType(type: Option) {
this.toggleTypeMenu();
this.type = type;
this.setSearchCriteria({type: type.value});
}
toggleStatusMenu() {
this.showStatusMenu = !this.showStatusMenu;
}
toggleTypeMenu() {
this.showTypeMenu = !this.showTypeMenu;
}
//////// Private //////////
private filterSection(section: ApiSection, { query, status, type }: SearchCriteria) {
let showSection = false;
section.items.forEach(item => {
item.show = matchesType() && matchesStatus() && matchesQuery();
// show section if any of its items will be shown
showSection = showSection || item.show;
function matchesQuery() {
return !query ||
section.name.indexOf(query) !== -1 ||
item.name.indexOf(query) !== -1;
}
function matchesStatus() {
return status === 'all' ||
status === item.stability ||
(status === 'security-risk' && item.securityRisk);
};
function matchesType() {
return type === 'all' || type === item.docType;
}
});
return showSection;
}
// Get initial search criteria from URL search params
private initializeSearchCriteria() {
const {query, status, type} = this.locationService.search();
const q = (query || '').toLowerCase();
// Hack: can't bind to query because input cursor always forced to end-of-line.
this.queryEl.nativeElement.value = q;
this.status = this.statuses.find(x => x.value === status) || this.statuses[0];
this.type = this.types.find(x => x.value === type) || this.types[0];
this.searchCriteria = {
query: q,
status: this.status.value,
type: this.type.value
};
this.criteriaSubject.next(this.searchCriteria);
}
private setLocationSearch() {
const {query, status, type} = this.searchCriteria;
const params = {
query: query ? query : undefined,
status: status !== 'all' ? status : undefined,
type: type !== 'all' ? type : undefined
};
this.locationService.setSearch('API Search', params);
}
private setSearchCriteria(criteria: SearchCriteria) {
this.criteriaSubject.next(Object.assign(this.searchCriteria, criteria));
this.setLocationSearch();
}
}