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import { Subscription } from 'rxjs'
import { filter } from 'rxjs/operators'
import { Component, Input, OnDestroy, OnInit, ViewChild } from '@angular/core'
import { NavigationEnd, Router } from '@angular/router'
import { MenuService, ScreenService } from '@app/core'
import { scrollToTop } from '@app/helpers'
import { GlobalIconName } from '@app/shared/shared-icons'
import { NgbDropdown, NgbModal } from '@ng-bootstrap/ng-bootstrap'
export type TopMenuDropdownParam = {
label: string
routerLink?: string
isDisplayed?: () => boolean // Default: () => true
children?: {
label: string
routerLink: string
iconName?: GlobalIconName
isDisplayed?: () => boolean // Default: () => true
}[]
}
@Component({
selector: 'my-top-menu-dropdown',
templateUrl: './top-menu-dropdown.component.html',
styleUrls: [ './top-menu-dropdown.component.scss' ]
})
export class TopMenuDropdownComponent implements OnInit, OnDestroy {
@Input() menuEntries: TopMenuDropdownParam[] = []
@ViewChild('modal', { static: true }) modal: NgbModal
suffixLabels: { [ parentLabel: string ]: string }
hasIcons = false
isModalOpened = false
currentMenuEntryIndex: number
private routeSub: Subscription
constructor (
private router: Router,
private modalService: NgbModal,
private screen: ScreenService,
private menuService: MenuService
) { }
get isInSmallView () {
let marginLeft = 0
if (this.menuService.isMenuDisplayed) {
marginLeft = this.menuService.menuWidth
}
return this.screen.isInSmallView(marginLeft)
}
get isBroadcastMessageDisplayed () {
return this.screen.isBroadcastMessageDisplayed
}
ngOnInit () {
this.updateChildLabels(window.location.pathname)
this.routeSub = this.router.events
.pipe(filter(event => event instanceof NavigationEnd))
.subscribe(() => this.updateChildLabels(window.location.pathname))
this.hasIcons = this.menuEntries.some(
e => e.children && e.children.some(c => !!c.iconName)
)
}
ngOnDestroy () {
if (this.routeSub) this.routeSub.unsubscribe()
}
dropdownAnchorClicked (dropdown: NgbDropdown) {
return dropdown.toggle()
}
openModal (index: number) {
this.currentMenuEntryIndex = index
this.isModalOpened = true
this.modalService.open(this.modal, {
centered: true,
beforeDismiss: async () => {
this.onModalDismiss()
return true
}
})
}
onModalDismiss () {
this.isModalOpened = false
}
onActiveLinkScrollToTop (link: HTMLAnchorElement) {
if (!this.isBroadcastMessageDisplayed && this.router.url.includes(link.getAttribute('href'))) {
scrollToTop('smooth')
}
}
dismissOtherModals () {
this.modalService.dismissAll()
}
isDisplayed (obj: { isDisplayed?: () => boolean }) {
if (typeof obj.isDisplayed !== 'function') return true
return obj.isDisplayed()
}
private updateChildLabels (path: string) {
this.suffixLabels = {}
for (const entry of this.menuEntries) {
if (!entry.children) continue
for (const child of entry.children) {
if (path.startsWith(child.routerLink)) {
this.suffixLabels[entry.label] = child.label
}
}
}
}
}
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