@devlukaszmichalak/mat-select-filter/fesm2022/devlukaszmichalak-mat-select-filter.mjs.map

A filter for mat-select

{"version":3,"file":"devlukaszmichalak-mat-select-filter.mjs","sources":["../../../projects/lib/src/lib/mat-select-filter.component.ts","../../../projects/lib/src/lib/mat-select-filter.module.ts","../../../projects/lib/src/public_api.ts","../../../projects/lib/src/devlukaszmichalak-mat-select-filter.ts"],"sourcesContent":["import { Component, EventEmitter, Input, OnDestroy, OnInit, Output, ViewChild } from '@angular/core';\r\nimport { FormsModule, ReactiveFormsModule, UntypedFormBuilder, UntypedFormGroup } from '@angular/forms';\r\nimport { A, NINE, SPACE, Z, ZERO } from '@angular/cdk/keycodes';\r\nimport { debounceTime, Subscription, take, timer } from 'rxjs';\r\nimport { MatProgressSpinnerModule } from '@angular/material/progress-spinner';\r\nimport { CommonModule } from '@angular/common';\r\nimport { MatInputModule } from '@angular/material/input';\r\n\r\n@Component({\r\n  selector: 'mat-select-filter',\r\n  template: `\r\n      <form [formGroup]=\"searchForm\" class=\"mat-filter\" [ngStyle]=\"{'background-color': color ? color : 'white'}\">\r\n          <div>\r\n              <input #input class=\"mat-filter-input\" matInput placeholder=\"{{placeholder}}\" formControlName=\"value\"\r\n                     (keydown)=\"handleKeydown($event)\">\r\n              <mat-spinner *ngIf=\"localSpinner && showSpinner\" class=\"spinner\" diameter=\"16\"></mat-spinner>\r\n          </div>\r\n          <div *ngIf=\"noResults\"\r\n               class=\"noResultsMessage\">\r\n              {{ noResultsMessage }}\r\n          </div>\r\n      </form>\r\n  `,\r\n  imports: [\r\n    CommonModule,\r\n    FormsModule,\r\n    ReactiveFormsModule,\r\n    MatProgressSpinnerModule,\r\n    MatInputModule\r\n  ],\r\n  styleUrls: ['./mat-select-filter.component.scss']\r\n})\r\nexport class MatSelectFilterComponent implements OnInit, OnDestroy {\r\n  private searchFormValueChangesSubscription?: Subscription;\r\n  @ViewChild('input', {static: true}) input: any;\r\n  \r\n  @Input('array') array: any[] = [];\r\n  @Input('placeholder') placeholder: string = 'Search...';\r\n  @Input('color') color?: string;\r\n  @Input('displayMember') displayMember?: string;\r\n  @Input('showSpinner') showSpinner = true;\r\n  @Input('noResultsMessage') noResultsMessage = 'No results';\r\n  @Input('hasGroup') hasGroup?: boolean;\r\n  @Input('groupArrayName') groupArrayName?: string;\r\n  @Input('filterDebounceTime') filterDebounceTime: number = 0;\r\n  \r\n  @Output() filteredReturn = new EventEmitter<any>();\r\n  \r\n  noResults = false;\r\n  localSpinner = false;\r\n  \r\n  public filteredItems: any[] = [];\r\n  \r\n  public searchForm: UntypedFormGroup = this.fb.group({\r\n    value: ''\r\n  });\r\n  \r\n  constructor(private fb: UntypedFormBuilder) {\r\n  }\r\n  \r\n  ngOnInit(): void {\r\n    this.searchFormValueChangesSubscription = this.searchForm.valueChanges\r\n      .pipe(debounceTime(this.filterDebounceTime))\r\n      .subscribe(value => {\r\n        this.localSpinner = true;\r\n        \r\n        const userInputLowerCase = value['value'].toLowerCase();\r\n        \r\n        if (userInputLowerCase) {\r\n          this.filterArray(userInputLowerCase);\r\n          \r\n          // NO RESULTS VALIDATION\r\n          this.noResults = this.filteredItems == null || this.filteredItems.length === 0;\r\n          \r\n        } else {\r\n          this.filteredItems = this.array.slice();\r\n          this.noResults = false;\r\n        }\r\n        \r\n        this.filteredReturn.emit(this.filteredItems);\r\n        timer(2000)\r\n          .pipe(take(1))\r\n          .subscribe(() => this.localSpinner = false);\r\n      });\r\n    \r\n    timer(500)\r\n      .pipe(take(1))\r\n      .subscribe(() => this.input.nativeElement.focus());\r\n  }\r\n  \r\n  private filterArray(userInputLowerCase: string): void {\r\n    // IF THE DISPLAY MEMBER INPUT IS SET WE CHECK THE SPECIFIC PROPERTY\r\n    if (this.displayMember == null) {\r\n      this.filteredItems = this.array.filter((name: any) => name.toLowerCase().includes(userInputLowerCase));\r\n      \r\n    } else if (this.hasGroup && this.groupArrayName && this.displayMember) {\r\n      this.filteredItems = this.array\r\n        .map((a: any) => {\r\n          const objCopy = {...a};\r\n          objCopy[this.groupArrayName!] = objCopy[this.groupArrayName!].filter((g: any) => g[this.displayMember!].toLowerCase().includes(userInputLowerCase));\r\n          return objCopy;\r\n        })\r\n        .filter((x: any) => x[this.groupArrayName!].length > 0);\r\n      \r\n      // OTHERWISE, WE CHECK THE ENTIRE STRING\r\n    } else {\r\n      this.filteredItems = this.array.filter((item: any) => item[this.displayMember!].toLowerCase().includes(userInputLowerCase));\r\n    }\r\n  }\r\n  \r\n  handleKeydown(event: KeyboardEvent): void {\r\n    const isAlphanumeric = (event.key && event.key.length === 1) ||\r\n      (event.keyCode >= A && event.keyCode <= Z) ||\r\n      (event.keyCode >= ZERO && event.keyCode <= NINE) ||\r\n      (event.keyCode === SPACE);\r\n    \r\n    // PREVENT PROPAGATION FOR ALL ALPHANUMERIC CHARACTERS IN ORDER TO AVOID SELECTION ISSUES\r\n    if (isAlphanumeric) {\r\n      event.stopPropagation();\r\n    }\r\n  }\r\n  \r\n  ngOnDestroy(): void {\r\n    this.filteredReturn.emit(this.array);\r\n    this.searchFormValueChangesSubscription!.unsubscribe();\r\n  }\r\n  \r\n}\r\n","import { MatSelectFilterComponent } from './mat-select-filter.component';\r\nimport { NgModule } from '@angular/core';\r\n\r\n@NgModule({\r\n  declarations: [],\r\n  imports: [MatSelectFilterComponent],\r\n  exports: [MatSelectFilterComponent]\r\n})\r\nexport class MatSelectFilterModule {\r\n}\r\n","/*\r\n * Public API Surface of mat-select-filter\r\n */\r\n\r\nexport * from './lib/mat-select-filter.component';\r\nexport * from './lib/mat-select-filter.module';\r\n","/**\n * Generated bundle index. Do not edit.\n */\n\nexport * from 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