@taiga-ui/kit/fesm2022/taiga-ui-kit-directives-data-list-dropdown-manager.mjs.map

Taiga UI Angular main components kit

{"version":3,"file":"taiga-ui-kit-directives-data-list-dropdown-manager.mjs","sources":["../../../projects/kit/directives/data-list-dropdown-manager/data-list-dropdown-manager.directive.ts","../../../projects/kit/directives/data-list-dropdown-manager/taiga-ui-kit-directives-data-list-dropdown-manager.ts"],"sourcesContent":["import type {AfterViewInit, QueryList} from '@angular/core';\nimport {ContentChildren, DestroyRef, Directive, ElementRef, inject} from '@angular/core';\nimport {takeUntilDestroyed} from '@angular/core/rxjs-interop';\nimport {EMPTY_QUERY} from '@taiga-ui/cdk/constants';\nimport {\n    tuiPreventDefault,\n    tuiQueryListChanges,\n    tuiTypedFromEvent,\n} from '@taiga-ui/cdk/observables';\nimport {tuiGetClosestFocusable} from '@taiga-ui/cdk/utils/focus';\nimport {tuiPure} from '@taiga-ui/cdk/utils/miscellaneous';\nimport {TuiDropdownDirective} from '@taiga-ui/core/directives/dropdown';\nimport type {Observable} from 'rxjs';\nimport {\n    debounceTime,\n    EMPTY,\n    filter,\n    map,\n    merge,\n    shareReplay,\n    switchMap,\n    take,\n    tap,\n} from 'rxjs';\n\n@Directive({\n    standalone: true,\n    selector: 'tui-data-list[tuiDataListDropdownManager]',\n})\nexport class TuiDataListDropdownManager implements AfterViewInit {\n    @ContentChildren(TuiDropdownDirective, {descendants: true})\n    private readonly dropdowns: QueryList<TuiDropdownDirective> = EMPTY_QUERY;\n\n    @ContentChildren(TuiDropdownDirective, {read: ElementRef, descendants: true})\n    private readonly els: QueryList<ElementRef<HTMLElement>> = EMPTY_QUERY;\n\n    private readonly destroyRef = inject(DestroyRef);\n\n    public ngAfterViewInit(): void {\n        this.right$.pipe(takeUntilDestroyed(this.destroyRef)).subscribe((index) => {\n            this.tryToFocus(index);\n        });\n\n        merge(this.immediate$, this.debounce$)\n            .pipe(\n                switchMap((active) => {\n                    this.dropdowns.forEach((dropdown, index) => {\n                        dropdown.toggle(index === active);\n                    });\n\n                    const element = this.els.get(active);\n                    const dropdown = this.dropdowns.get(active);\n                    const ref = dropdown?.ref();\n\n                    if (!element || !dropdown || !ref) {\n                        return EMPTY;\n                    }\n\n                    const {nativeElement} = ref.location;\n                    const mouseEnter$ = tuiTypedFromEvent(\n                        nativeElement,\n                        'mouseenter',\n                    ).pipe(take(1));\n                    const esc$ = merge(\n                        tuiTypedFromEvent(element.nativeElement, 'keydown'),\n                        tuiTypedFromEvent(nativeElement, 'keydown'),\n                    ).pipe(filter(({key}) => key === 'Escape'));\n\n                    return merge(mouseEnter$, esc$).pipe(\n                        tap((event) => {\n                            if (dropdown.ref()) {\n                                event.stopPropagation();\n                            }\n\n                            element.nativeElement.focus();\n                            dropdown.toggle('offsetX' in event);\n                        }),\n                    );\n                }),\n                takeUntilDestroyed(this.destroyRef),\n            )\n            .subscribe();\n    }\n\n    @tuiPure\n    private get elements$(): Observable<readonly HTMLElement[]> {\n        return tuiQueryListChanges(this.els).pipe(\n            map((array) => array.map(({nativeElement}) => nativeElement)),\n            shareReplay({bufferSize: 1, refCount: true}),\n        );\n    }\n\n    @tuiPure\n    private get right$(): Observable<number> {\n        return this.elements$.pipe(\n            switchMap((elements) =>\n                merge(\n                    ...elements.map((element, index) =>\n                        tuiTypedFromEvent(element, 'keydown').pipe(\n                            filter(({key}) => key === 'ArrowRight'),\n                            tuiPreventDefault(),\n                            map(() => index),\n                        ),\n                    ),\n                ),\n            ),\n        );\n    }\n\n    @tuiPure\n    private get immediate$(): Observable<number> {\n        return this.elements$.pipe(\n            switchMap((elements) =>\n                merge(\n                    ...elements.map((element, index) =>\n                        tuiTypedFromEvent(element, 'click').pipe(map(() => index)),\n                    ),\n                ),\n            ),\n        );\n    }\n\n    @tuiPure\n    private get debounce$(): Observable<number> {\n        return this.elements$.pipe(\n            switchMap((elements) =>\n                merge(\n                    ...elements.map((element, index) =>\n                        merge(\n                            tuiTypedFromEvent(element, 'focus'),\n                            tuiTypedFromEvent(element, 'blur'),\n                        ).pipe(\n                            filter(({relatedTarget}) =>\n                                this.notInDropdown(relatedTarget, index),\n                            ),\n                            map(({type}) => (type === 'focus' ? index : NaN)),\n                        ),\n                    ),\n                ),\n            ),\n            debounceTime(300),\n        );\n    }\n\n    private notInDropdown(element: EventTarget | null, index: number): boolean {\n        return !this.dropdowns\n            .get(index)\n            ?.ref()\n            ?.location.nativeElement.contains(element);\n    }\n\n    private tryToFocus(index: number): void {\n        const content = this.dropdowns.get(index)?.ref()?.location.nativeElement;\n\n        if (!content) {\n            return;\n        }\n\n        // First item is focus trap\n        const focusTrap = tuiGetClosestFocusable({initial: content, root: content});\n        const item = tuiGetClosestFocusable({\n            initial: focusTrap || content,\n            root: content,\n        });\n\n        item?.focus();\n    }\n}\n","/**\n * Generated bundle index. 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