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1 | import { | |
2 | Component, | |
3 | Input, | |
4 | TemplateRef, | |
5 | ViewChildren, | |
6 | ViewChild, | |
7 | QueryList, | |
8 | ChangeDetectionStrategy, | |
9 | ElementRef, | |
10 | ChangeDetectorRef, | |
11 | HostListener | |
12 | } from '@angular/core' | |
13 | import { NgbModal, NgbDropdown } from '@ng-bootstrap/ng-bootstrap' | |
14 | import { uniqueId, lowerFirst } from 'lodash-es' | |
15 | import { ScreenService } from './screen.service' | |
16 | import { take } from 'rxjs/operators' | |
17 | ||
18 | export interface ListOverflowItem { | |
19 | label: string | |
20 | routerLink: string | any[] | |
21 | } | |
22 | ||
23 | @Component({ | |
24 | selector: 'list-overflow', | |
25 | templateUrl: './list-overflow.component.html', | |
26 | styleUrls: [ './list-overflow.component.scss' ], | |
27 | changeDetection: ChangeDetectionStrategy.OnPush | |
28 | }) | |
29 | export class ListOverflowComponent<T extends ListOverflowItem> { | |
30 | @ViewChild('modal', { static: true }) modal: ElementRef | |
31 | @ViewChild('itemsParent', { static: true }) parent: ElementRef<HTMLDivElement> | |
32 | @ViewChildren('itemsRendered') itemsRendered: QueryList<ElementRef> | |
33 | @Input() items: T[] | |
34 | @Input() itemTemplate: TemplateRef<{item: T}> | |
35 | ||
36 | showItemsUntilIndexExcluded: number | |
37 | active = false | |
38 | isInTouchScreen = false | |
39 | isInMobileView = false | |
40 | ||
41 | private openedOnHover = false | |
42 | ||
43 | constructor ( | |
44 | private cdr: ChangeDetectorRef, | |
45 | private modalService: NgbModal, | |
46 | private screenService: ScreenService | |
47 | ) {} | |
48 | ||
49 | isMenuDisplayed () { | |
50 | return !!this.showItemsUntilIndexExcluded | |
51 | } | |
52 | ||
53 | @HostListener('window:resize', ['$event']) | |
54 | onWindowResize () { | |
55 | this.isInTouchScreen = !!this.screenService.isInTouchScreen() | |
56 | this.isInMobileView = !!this.screenService.isInMobileView() | |
57 | ||
58 | const parentWidth = this.parent.nativeElement.getBoundingClientRect().width | |
59 | let showItemsUntilIndexExcluded: number | |
60 | let accWidth = 0 | |
61 | ||
62 | for (const [index, el] of this.itemsRendered.toArray().entries()) { | |
63 | accWidth += el.nativeElement.getBoundingClientRect().width | |
64 | if (showItemsUntilIndexExcluded === undefined) { | |
65 | showItemsUntilIndexExcluded = (parentWidth < accWidth) ? index : undefined | |
66 | } | |
67 | ||
68 | const e = document.getElementById(this.getId(index)) | |
69 | const shouldBeVisible = showItemsUntilIndexExcluded ? index < showItemsUntilIndexExcluded : true | |
70 | e.style.visibility = shouldBeVisible ? 'inherit' : 'hidden' | |
71 | } | |
72 | ||
73 | this.showItemsUntilIndexExcluded = showItemsUntilIndexExcluded | |
74 | this.cdr.markForCheck() | |
75 | } | |
76 | ||
77 | openDropdownOnHover (dropdown: NgbDropdown) { | |
78 | this.openedOnHover = true | |
79 | dropdown.open() | |
80 | ||
81 | // Menu was closed | |
82 | dropdown.openChange | |
83 | .pipe(take(1)) | |
84 | .subscribe(() => this.openedOnHover = false) | |
85 | } | |
86 | ||
87 | dropdownAnchorClicked (dropdown: NgbDropdown) { | |
88 | if (this.openedOnHover) { | |
89 | this.openedOnHover = false | |
90 | return | |
91 | } | |
92 | ||
93 | return dropdown.toggle() | |
94 | } | |
95 | ||
96 | closeDropdownIfHovered (dropdown: NgbDropdown) { | |
97 | if (this.openedOnHover === false) return | |
98 | ||
99 | dropdown.close() | |
100 | this.openedOnHover = false | |
101 | } | |
102 | ||
103 | toggleModal () { | |
104 | this.modalService.open(this.modal, { centered: true }) | |
105 | } | |
106 | ||
107 | dismissOtherModals () { | |
108 | this.modalService.dismissAll() | |
109 | } | |
110 | ||
111 | getId (id: number | string = uniqueId()): string { | |
112 | return lowerFirst(this.constructor.name) + '_' + id | |
113 | } | |
114 | } |