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dd24f1bb C |
1 | import { Component, forwardRef, Input } from '@angular/core' |
2 | import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms' | |
3 | import { Notifier } from '@app/core' | |
eaa52952 | 4 | import { prepareIcu } from '@app/helpers' |
dd24f1bb C |
5 | import { SelectOptionsItem } from '../../../../types/select-options-item.model' |
6 | import { ItemSelectCheckboxValue } from './select-checkbox.component' | |
7 | ||
8 | @Component({ | |
9 | selector: 'my-select-checkbox-all', | |
10 | styleUrls: [ './select-shared.component.scss' ], | |
11 | ||
12 | template: ` | |
13 | <my-select-checkbox | |
14 | [(ngModel)]="selectedItems" | |
15 | (ngModelChange)="onModelChange()" | |
16 | [availableItems]="availableItems" | |
17 | [selectableGroup]="true" [selectableGroupAsModel]="true" | |
18 | [placeholder]="placeholder" | |
19 | (focusout)="onBlur()" | |
20 | > | |
21 | </my-select-checkbox>`, | |
22 | ||
23 | providers: [ | |
24 | { | |
25 | provide: NG_VALUE_ACCESSOR, | |
26 | useExisting: forwardRef(() => SelectCheckboxAllComponent), | |
27 | multi: true | |
28 | } | |
29 | ] | |
30 | }) | |
31 | export class SelectCheckboxAllComponent implements ControlValueAccessor { | |
32 | @Input() availableItems: SelectOptionsItem[] = [] | |
33 | @Input() allGroupLabel: string | |
34 | ||
35 | @Input() placeholder: string | |
36 | @Input() maxItems: number | |
37 | ||
38 | selectedItems: ItemSelectCheckboxValue[] | |
39 | ||
40 | constructor ( | |
41 | private notifier: Notifier | |
42 | ) { | |
43 | ||
44 | } | |
45 | ||
46 | propagateChange = (_: any) => { /* empty */ } | |
47 | ||
48 | writeValue (items: string[]) { | |
49 | this.selectedItems = items | |
50 | ? items.map(l => ({ id: l })) | |
51 | : [ { group: this.allGroupLabel } ] | |
52 | } | |
53 | ||
54 | registerOnChange (fn: (_: any) => void) { | |
55 | this.propagateChange = fn | |
56 | } | |
57 | ||
58 | registerOnTouched () { | |
59 | // Unused | |
60 | } | |
61 | ||
62 | onModelChange () { | |
63 | if (!this.isMaxConstraintValid()) return | |
64 | ||
65 | this.propagateChange(this.buildOutputItems()) | |
66 | } | |
67 | ||
68 | onBlur () { | |
69 | // Automatically use "All languages" if the user did not select any language | |
70 | if (Array.isArray(this.selectedItems) && this.selectedItems.length === 0) { | |
71 | this.selectedItems = [ { group: this.allGroupLabel } ] | |
72 | } | |
73 | } | |
74 | ||
75 | private isMaxConstraintValid () { | |
76 | if (!this.maxItems) return true | |
77 | ||
78 | const outputItems = this.buildOutputItems() | |
79 | if (!outputItems) return true | |
80 | ||
81 | if (outputItems.length >= this.maxItems) { | |
eaa52952 C |
82 | this.notifier.error( |
83 | prepareIcu($localize`You can't select more than {maxItems, plural, =1 {1 item} other {{maxItems} items}}`)( | |
84 | { maxItems: this.maxItems }, | |
85 | $localize`You can't select more than ${this.maxItems} items` | |
86 | ) | |
87 | ) | |
dd24f1bb C |
88 | |
89 | return false | |
90 | } | |
91 | ||
92 | return true | |
93 | } | |
94 | ||
95 | private buildOutputItems () { | |
96 | if (!Array.isArray(this.selectedItems)) return undefined | |
97 | ||
98 | // null means "All" | |
99 | if (this.selectedItems.length === 0 || this.selectedItems.length === this.availableItems.length) { | |
100 | return null | |
101 | } | |
102 | ||
103 | if (this.selectedItems.length === 1) { | |
104 | const item = this.selectedItems[0] | |
105 | ||
106 | const itemGroup = typeof item === 'string' || typeof item === 'number' | |
107 | ? item | |
108 | : item.group | |
109 | ||
110 | if (itemGroup === this.allGroupLabel) return null | |
111 | } | |
112 | ||
113 | return this.selectedItems.map(l => { | |
114 | if (typeof l === 'string' || typeof l === 'number') return l | |
115 | ||
116 | if (l.group) return l.group | |
117 | ||
118 | return l.id + '' | |
119 | }) | |
120 | } | |
121 | } |