Open-ILS/src/eg2/src/app/share/org-family-select/org-family-select.component.ts

   1 import {Component, EventEmitter, OnInit, Input, Output, ViewChild, forwardRef} from '@angular/core';
   2 import {ControlValueAccessor, FormGroup, FormControl, NG_VALUE_ACCESSOR} from '@angular/forms';
   3 import {AuthService} from '@eg/core/auth.service';
   4 import {IdlObject} from '@eg/core/idl.service';
   5 import {OrgService} from '@eg/core/org.service';
   6
   7 export interface OrgFamily {
   8   primaryOrgId: number;
   9   includeAncestors?: boolean;
  10   includeDescendants?: boolean;
  11   orgIds?: number[];
  12 }
  13
  14 @Component({
  15     selector: 'eg-org-family-select',
  16     templateUrl: 'org-family-select.component.html',
  17     providers: [
  18     {
  19       provide: NG_VALUE_ACCESSOR,
  20       useExisting: forwardRef(() => OrgFamilySelectComponent),
  21       multi: true
  22     }
  23   ]
  24 })
  25 export class OrgFamilySelectComponent implements ControlValueAccessor, OnInit {
  26
  27     // The label for this input
  28     @Input() labelText = 'Library';
  29
  30     // Should the Ancestors checkbox be hidden?
  31     @Input() hideAncestorSelector = false;
  32
  33     // Should the Descendants checkbox be hidden?
  34     @Input() hideDescendantSelector = false;
  35
  36     // Should the Ancestors checkbox be checked by default?
  37     //
  38     // Ignored if [hideAncestorSelector]="true"
  39     @Input() ancestorSelectorChecked = false;
  40
  41     // Should the Descendants checkbox be checked by default?
  42     //
  43     // Ignored if [hideDescendantSelector]="true"
  44     @Input() descendantSelectorChecked = false;
  45
  46     // Default org unit
  47     @Input() selectedOrgId: number;
  48
  49     // Only show the OUs that the user has certain permissions at
  50     @Input() limitPerms: string[];
  51
  52     @Input() domId: string;
  53
  54     // this is the most up-to-date value used for ngModel and reactive form
  55     // subscriptions
  56     options: OrgFamily;
  57
  58     orgOnChange: ($event: IdlObject) => void;
  59     emitArray: () => void;
  60
  61     familySelectors: FormGroup;
  62
  63     propagateChange = (_: OrgFamily) => {};
  64
  65     constructor(
  66         private auth: AuthService,
  67         private org: OrgService
  68     ) {
  69     }
  70
  71     ngOnInit() {
  72         if (this.selectedOrgId) {
  73             this.options = {primaryOrgId: this.selectedOrgId};
  74         } else if (this.auth.user()) {
  75             this.options = {primaryOrgId: this.auth.user().ws_ou()};
  76         }
  77
  78         this.familySelectors = new FormGroup({
  79             'includeAncestors': new FormControl({
  80                 value: this.ancestorSelectorChecked,
  81                 disabled: this.disableAncestorSelector()}),
  82             'includeDescendants': new FormControl({
  83                 value: this.descendantSelectorChecked,
  84                 disabled: this.disableDescendantSelector()}),
  85         });
  86
  87         if (!this.domId) {
  88             this.domId = 'org-family-select-' + Math.floor(Math.random() * 100000);
  89         }
  90
  91         this.familySelectors.valueChanges.subscribe(val => {
  92             this.emitArray();
  93         });
  94
  95         this.orgOnChange = ($event: IdlObject) => {
  96             this.options.primaryOrgId = $event.id();
  97             this.disableAncestorSelector() ? this.includeAncestors.disable() : this.includeAncestors.enable();
  98             this.disableDescendantSelector() ? this.includeDescendants.disable() : this.includeDescendants.enable();
  99             this.emitArray();
 100         };
 101
 102         this.emitArray = () => {
 103             // Prepare and emit an array containing the primary org id and
 104             // optionally ancestor and descendant org units.
 105
 106             this.options.orgIds = [this.options.primaryOrgId];
 107
 108             if (this.includeAncestors.value) {
 109                 this.options.orgIds = this.org.ancestors(this.options.primaryOrgId, true);
 110             }
 111
 112             if (this.includeDescendants.value) {
 113                 // can result in duplicate workstation org IDs... meh
 114                 this.options.orgIds = this.options.orgIds.concat(
 115                     this.org.descendants(this.options.primaryOrgId, true));
 116             }
 117
 118             this.propagateChange(this.options);
 119         };
 120
 121     }
 122
 123     writeValue(value: OrgFamily) {
 124         if (value) {
 125             this.selectedOrgId = value['primaryOrgId'];
 126             this.familySelectors.patchValue({
 127                 'includeAncestors': value['includeAncestors'] ? value['includeAncestors'] : false,
 128                 'includeDescendants': value['includeDescendants'] ? value['includeDescendants'] : false,
 129             });
 130         }
 131     }
 132
 133     registerOnChange(fn) {
 134         this.propagateChange = fn;
 135     }
 136
 137     registerOnTouched() {}
 138
 139     disableAncestorSelector(): boolean {
 140         return this.options.primaryOrgId === this.org.root().id();
 141     }
 142
 143     disableDescendantSelector(): boolean {
 144         const contextOrg = this.org.get(this.options.primaryOrgId);
 145         return contextOrg.children().length === 0;
 146     }
 147
 148     get includeAncestors() {
 149         return this.familySelectors.get('includeAncestors');
 150     }
 151     get includeDescendants() {
 152         return this.familySelectors.get('includeDescendants');
 153     }
 154
 155 }
 156