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feat(core/select): support for angular forms (#738)
Co-authored-by: Tiago Viegas <tiago.viegas@siemens.com>
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25 changes: 25 additions & 0 deletions
25
packages/angular-test-app/src/preview-examples/select-ng-model.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| /* | ||
| * SPDX-FileCopyrightText: 2023 Siemens AG | ||
| * | ||
| * SPDX-License-Identifier: MIT | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
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| import { Component } from '@angular/core'; | ||
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| @Component({ | ||
| selector: 'app-example', | ||
| template: ` | ||
| <ix-select name="ix-select-control" [(ngModel)]="value"> | ||
| <ix-select-item label="Item 1" value="1"></ix-select-item> | ||
| <ix-select-item label="Item 2" value="2"></ix-select-item> | ||
| <ix-select-item label="Item 3" value="3"></ix-select-item> | ||
| <ix-select-item label="Item 4" value="4"></ix-select-item> | ||
| </ix-select> | ||
| `, | ||
| }) | ||
| export default class Select { | ||
| value = '1'; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| import { Directive, ElementRef } from '@angular/core'; | ||
| import { NG_VALUE_ACCESSOR } from '@angular/forms'; | ||
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| import { ValueAccessor } from './value-accessor'; | ||
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| @Directive({ | ||
| /* tslint:disable-next-line:directive-selector */ | ||
| selector: 'ix-select[ngModel],ix-select[formControlName],ix-select[formControl]', | ||
| host: { | ||
| '(valueChange)': 'handleChangeEvent($event.target.value)' | ||
| }, | ||
| providers: [ | ||
| { | ||
| provide: NG_VALUE_ACCESSOR, | ||
| useExisting: SelectValueAccessor, | ||
| multi: true | ||
| } | ||
| ] | ||
| }) | ||
| export class SelectValueAccessor extends ValueAccessor { | ||
| constructor(el: ElementRef) { | ||
| super(el); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| import { Directive, ElementRef, HostListener } from '@angular/core'; | ||
| import { ControlValueAccessor } from '@angular/forms'; | ||
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| @Directive({}) | ||
| export class ValueAccessor implements ControlValueAccessor { | ||
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| private onChange: (value: any) => void = () => {/**/}; | ||
| private onTouched: () => void = () => {/**/}; | ||
| protected lastValue: any; | ||
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| constructor(protected el: ElementRef) {} | ||
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| writeValue(value: any) { | ||
| this.el.nativeElement.value = this.lastValue = value == null ? '' : value; | ||
| } | ||
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| handleChangeEvent(value: any) { | ||
| if (value !== this.lastValue) { | ||
| this.lastValue = value; | ||
| this.onChange(value); | ||
| } | ||
| } | ||
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| @HostListener('focusout') | ||
| _handleBlurEvent() { | ||
| this.onTouched(); | ||
| } | ||
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| registerOnChange(fn: (value: any) => void) { | ||
| this.onChange = fn; | ||
| } | ||
| registerOnTouched(fn: () => void) { | ||
| this.onTouched = fn; | ||
| } | ||
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| setDisabledState(isDisabled: boolean) { | ||
| this.el.nativeElement.disabled = isDisabled; | ||
| } | ||
| } |
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