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1 | import { | |
2 | AfterViewInit, | |
3 | ChangeDetectionStrategy, | |
4 | ChangeDetectorRef, | |
5 | Component, | |
6 | ElementRef, | |
7 | HostListener, | |
8 | Input, | |
9 | QueryList, | |
10 | TemplateRef, | |
11 | ViewChild, | |
12 | ViewChildren | |
13 | } from '@angular/core' | |
14 | import { NgbDropdown, NgbModal } from '@ng-bootstrap/ng-bootstrap' | |
15 | import { lowerFirst, uniqueId } from 'lodash-es' | |
16 | import { ScreenService } from './screen.service' | |
17 | import { take } from 'rxjs/operators' | |
18 | ||
19 | export interface ListOverflowItem { | |
20 | label: string | |
21 | routerLink: string | any[] | |
22 | } | |
23 | ||
24 | @Component({ | |
25 | selector: 'list-overflow', | |
26 | templateUrl: './list-overflow.component.html', | |
27 | styleUrls: [ './list-overflow.component.scss' ], | |
28 | changeDetection: ChangeDetectionStrategy.OnPush | |
29 | }) | |
30 | export class ListOverflowComponent<T extends ListOverflowItem> implements AfterViewInit { | |
31 | @ViewChild('modal', { static: true }) modal: ElementRef | |
32 | @ViewChild('itemsParent', { static: true }) parent: ElementRef<HTMLDivElement> | |
33 | @ViewChildren('itemsRendered') itemsRendered: QueryList<ElementRef> | |
34 | @Input() items: T[] | |
35 | @Input() itemTemplate: TemplateRef<{item: T}> | |
36 | ||
37 | showItemsUntilIndexExcluded: number | |
38 | active = false | |
39 | isInTouchScreen = false | |
40 | isInMobileView = false | |
41 | ||
42 | private openedOnHover = false | |
43 | ||
44 | constructor ( | |
45 | private cdr: ChangeDetectorRef, | |
46 | private modalService: NgbModal, | |
47 | private screenService: ScreenService | |
48 | ) {} | |
49 | ||
50 | ngAfterViewInit () { | |
51 | setTimeout(() => this.onWindowResize(), 0) | |
52 | } | |
53 | ||
54 | isMenuDisplayed () { | |
55 | return !!this.showItemsUntilIndexExcluded | |
56 | } | |
57 | ||
58 | @HostListener('window:resize', ['$event']) | |
59 | onWindowResize () { | |
60 | this.isInTouchScreen = !!this.screenService.isInTouchScreen() | |
61 | this.isInMobileView = !!this.screenService.isInMobileView() | |
62 | ||
63 | const parentWidth = this.parent.nativeElement.getBoundingClientRect().width | |
64 | let showItemsUntilIndexExcluded: number | |
65 | let accWidth = 0 | |
66 | ||
67 | for (const [index, el] of this.itemsRendered.toArray().entries()) { | |
68 | accWidth += el.nativeElement.getBoundingClientRect().width | |
69 | if (showItemsUntilIndexExcluded === undefined) { | |
70 | showItemsUntilIndexExcluded = (parentWidth < accWidth) ? index : undefined | |
71 | } | |
72 | ||
73 | const e = document.getElementById(this.getId(index)) | |
74 | const shouldBeVisible = showItemsUntilIndexExcluded ? index < showItemsUntilIndexExcluded : true | |
75 | e.style.visibility = shouldBeVisible ? 'inherit' : 'hidden' | |
76 | } | |
77 | ||
78 | this.showItemsUntilIndexExcluded = showItemsUntilIndexExcluded | |
79 | this.cdr.markForCheck() | |
80 | } | |
81 | ||
82 | openDropdownOnHover (dropdown: NgbDropdown) { | |
83 | this.openedOnHover = true | |
84 | dropdown.open() | |
85 | ||
86 | // Menu was closed | |
87 | dropdown.openChange | |
88 | .pipe(take(1)) | |
89 | .subscribe(() => this.openedOnHover = false) | |
90 | } | |
91 | ||
92 | dropdownAnchorClicked (dropdown: NgbDropdown) { | |
93 | if (this.openedOnHover) { | |
94 | this.openedOnHover = false | |
95 | return | |
96 | } | |
97 | ||
98 | return dropdown.toggle() | |
99 | } | |
100 | ||
101 | closeDropdownIfHovered (dropdown: NgbDropdown) { | |
102 | if (this.openedOnHover === false) return | |
103 | ||
104 | dropdown.close() | |
105 | this.openedOnHover = false | |
106 | } | |
107 | ||
108 | toggleModal () { | |
109 | this.modalService.open(this.modal, { centered: true }) | |
110 | } | |
111 | ||
112 | dismissOtherModals () { | |
113 | this.modalService.dismissAll() | |
114 | } | |
115 | ||
116 | getId (id: number | string = uniqueId()): string { | |
117 | return lowerFirst(this.constructor.name) + '_' + id | |
118 | } | |
119 | } |