diff --git a/modules/@angular/forms/src/directives.ts b/modules/@angular/forms/src/directives.ts index e14d86fe4f..a68bc283fd 100644 --- a/modules/@angular/forms/src/directives.ts +++ b/modules/@angular/forms/src/directives.ts @@ -16,6 +16,7 @@ import {NgModel} from './directives/ng_model'; import {NgModelGroup} from './directives/ng_model_group'; import {NumberValueAccessor} from './directives/number_value_accessor'; import {RadioControlValueAccessor} from './directives/radio_control_value_accessor'; +import {RangeValueAccessor} from './directives/range_value_accessor'; import {FormControlDirective} from './directives/reactive_directives/form_control_directive'; import {FormControlName} from './directives/reactive_directives/form_control_name'; import {FormGroupDirective} from './directives/reactive_directives/form_group_directive'; @@ -34,6 +35,7 @@ export {NgModel} from './directives/ng_model'; export {NgModelGroup} from './directives/ng_model_group'; export {NumberValueAccessor} from './directives/number_value_accessor'; export {RadioControlValueAccessor} from './directives/radio_control_value_accessor'; +export {RangeValueAccessor} from './directives/range_value_accessor'; export {FormControlDirective} from './directives/reactive_directives/form_control_directive'; export {FormControlName} from './directives/reactive_directives/form_control_name'; export {FormGroupDirective} from './directives/reactive_directives/form_group_directive'; @@ -44,9 +46,9 @@ export {MaxLengthValidator, MinLengthValidator, PatternValidator, RequiredValida export const SHARED_FORM_DIRECTIVES: Type[] = [ NgSelectOption, NgSelectMultipleOption, DefaultValueAccessor, NumberValueAccessor, - CheckboxControlValueAccessor, SelectControlValueAccessor, SelectMultipleControlValueAccessor, - RadioControlValueAccessor, NgControlStatus, NgControlStatusGroup, RequiredValidator, - MinLengthValidator, MaxLengthValidator, PatternValidator + RangeValueAccessor, CheckboxControlValueAccessor, SelectControlValueAccessor, + SelectMultipleControlValueAccessor, RadioControlValueAccessor, NgControlStatus, + NgControlStatusGroup, RequiredValidator, MinLengthValidator, MaxLengthValidator, PatternValidator ]; export const TEMPLATE_DRIVEN_DIRECTIVES: Type[] = [NgModel, NgModelGroup, NgForm]; diff --git a/modules/@angular/forms/src/directives/range_value_accessor.ts b/modules/@angular/forms/src/directives/range_value_accessor.ts new file mode 100644 index 0000000000..cf89bc920c --- /dev/null +++ b/modules/@angular/forms/src/directives/range_value_accessor.ts @@ -0,0 +1,57 @@ +/** + * @license + * Copyright Google Inc. All Rights Reserved. + * + * Use of this source code is governed by an MIT-style license that can be + * found in the LICENSE file at https://angular.io/license + */ + +import {Directive, ElementRef, Provider, Renderer, forwardRef} from '@angular/core'; + +import {ControlValueAccessor, NG_VALUE_ACCESSOR} from './control_value_accessor'; + +export const RANGE_VALUE_ACCESSOR: Provider = { + provide: NG_VALUE_ACCESSOR, + useExisting: forwardRef(() => RangeValueAccessor), + multi: true +}; + +/** + * The accessor for writing a range value and listening to changes that is used by the + * {@link NgModel}, {@link FormControlDirective}, and {@link FormControlName} directives. + * + * ### Example + * ``` + * + * ``` + */ +@Directive({ + selector: + 'input[type=range][formControlName],input[type=range][formControl],input[type=range][ngModel]', + host: { + '(change)': 'onChange($event.target.value)', + '(input)': 'onChange($event.target.value)', + '(blur)': 'onTouched()' + }, + providers: [RANGE_VALUE_ACCESSOR] +}) +export class RangeValueAccessor implements ControlValueAccessor { + onChange = (_: any) => {}; + onTouched = () => {}; + + constructor(private _renderer: Renderer, private _elementRef: ElementRef) {} + + writeValue(value: any): void { + this._renderer.setElementProperty(this._elementRef.nativeElement, 'value', parseFloat(value)); + } + + registerOnChange(fn: (_: number) => void): void { + this.onChange = (value) => { fn(value == '' ? null : parseFloat(value)); }; + } + + registerOnTouched(fn: () => void): void { this.onTouched = fn; } + + setDisabledState(isDisabled: boolean): void { + this._renderer.setElementProperty(this._elementRef.nativeElement, 'disabled', isDisabled); + } +} diff --git a/modules/@angular/forms/src/directives/shared.ts b/modules/@angular/forms/src/directives/shared.ts index 49412ee44d..d414f8de5d 100644 --- a/modules/@angular/forms/src/directives/shared.ts +++ b/modules/@angular/forms/src/directives/shared.ts @@ -22,6 +22,7 @@ import {NgControl} from './ng_control'; import {normalizeAsyncValidator, normalizeValidator} from './normalize_validator'; import {NumberValueAccessor} from './number_value_accessor'; import {RadioControlValueAccessor} from './radio_control_value_accessor'; +import {RangeValueAccessor} from './range_value_accessor'; import {FormArrayName} from './reactive_directives/form_group_name'; import {SelectControlValueAccessor} from './select_control_value_accessor'; import {SelectMultipleControlValueAccessor} from './select_multiple_control_value_accessor'; @@ -130,6 +131,7 @@ export function isPropertyUpdated(changes: {[key: string]: any}, viewModel: any) export function isBuiltInAccessor(valueAccessor: ControlValueAccessor): boolean { return ( hasConstructor(valueAccessor, CheckboxControlValueAccessor) || + hasConstructor(valueAccessor, RangeValueAccessor) || hasConstructor(valueAccessor, NumberValueAccessor) || hasConstructor(valueAccessor, SelectControlValueAccessor) || hasConstructor(valueAccessor, SelectMultipleControlValueAccessor) || diff --git a/modules/@angular/forms/test/reactive_integration_spec.ts b/modules/@angular/forms/test/reactive_integration_spec.ts index e5fbf9f9a4..294034a1fb 100644 --- a/modules/@angular/forms/test/reactive_integration_spec.ts +++ b/modules/@angular/forms/test/reactive_integration_spec.ts @@ -22,11 +22,26 @@ export function main() { TestBed.configureTestingModule({ imports: [FormsModule, ReactiveFormsModule], declarations: [ - FormControlComp, FormGroupComp, FormArrayComp, FormArrayNestedGroup, - FormControlNameSelect, FormControlNumberInput, FormControlRadioButtons, WrappedValue, - WrappedValueForm, MyInput, MyInputForm, FormGroupNgModel, FormControlNgModel, - LoginIsEmptyValidator, LoginIsEmptyWrapper, ValidationBindingsForm, UniqLoginValidator, - UniqLoginWrapper, NestedFormGroupComp + FormControlComp, + FormGroupComp, + FormArrayComp, + FormArrayNestedGroup, + FormControlNameSelect, + FormControlNumberInput, + FormControlRangeInput, + FormControlRadioButtons, + WrappedValue, + WrappedValueForm, + MyInput, + MyInputForm, + FormGroupNgModel, + FormControlNgModel, + LoginIsEmptyValidator, + LoginIsEmptyWrapper, + ValidationBindingsForm, + UniqLoginValidator, + UniqLoginWrapper, + NestedFormGroupComp ] }); }); @@ -1126,6 +1141,57 @@ export function main() { }); + describe('should support ', () => { + it('with basic use case', () => { + const fixture = TestBed.createComponent(FormControlRangeInput); + const control = new FormControl(10); + fixture.componentInstance.control = control; + fixture.detectChanges(); + + // model -> view + const input = fixture.debugElement.query(By.css('input')); + expect(input.nativeElement.value).toEqual('10'); + + input.nativeElement.value = '20'; + dispatchEvent(input.nativeElement, 'input'); + + // view -> model + expect(control.value).toEqual(20); + }); + + it('when value is cleared in the UI', () => { + const fixture = TestBed.createComponent(FormControlNumberInput); + const control = new FormControl(10, Validators.required); + fixture.componentInstance.control = control; + fixture.detectChanges(); + + const input = fixture.debugElement.query(By.css('input')); + input.nativeElement.value = ''; + dispatchEvent(input.nativeElement, 'input'); + + expect(control.valid).toBe(false); + expect(control.value).toEqual(null); + + input.nativeElement.value = '0'; + dispatchEvent(input.nativeElement, 'input'); + + expect(control.valid).toBe(true); + expect(control.value).toEqual(0); + }); + + it('when value is cleared programmatically', () => { + const fixture = TestBed.createComponent(FormControlNumberInput); + const control = new FormControl(10); + fixture.componentInstance.control = control; + fixture.detectChanges(); + + control.setValue(null); + + const input = fixture.debugElement.query(By.css('input')); + expect(input.nativeElement.value).toEqual(''); + }); + }); + describe('custom value accessors', () => { it('should support basic functionality', () => { const fixture = TestBed.createComponent(WrappedValueForm); @@ -1852,6 +1918,16 @@ class FormControlNumberInput { control: FormControl; } +@Component({ + selector: 'form-control-range-input', + template: ` + + ` +}) +class FormControlRangeInput { + control: FormControl; +} + @Component({ selector: 'form-control-radio-buttons', template: ` diff --git a/modules/@angular/forms/test/template_integration_spec.ts b/modules/@angular/forms/test/template_integration_spec.ts index 7d3c183319..d5ca1bf61c 100644 --- a/modules/@angular/forms/test/template_integration_spec.ts +++ b/modules/@angular/forms/test/template_integration_spec.ts @@ -20,7 +20,7 @@ export function main() { TestBed.configureTestingModule({ declarations: [ StandaloneNgModel, NgModelForm, NgModelGroupForm, NgModelValidBinding, NgModelNgIfForm, - NgModelRadioForm, NgModelSelectForm, NgNoFormComp, InvalidNgModelNoName, + NgModelRadioForm, NgModelRangeForm, NgModelSelectForm, NgNoFormComp, InvalidNgModelNoName, NgModelOptionsStandalone, NgModelCustomComp, NgModelCustomWrapper, NgModelValidationBindings, NgModelMultipleValidators, NgAsyncValidator, NgModelAsyncValidation @@ -503,6 +503,26 @@ export function main() { }); + describe('range control', () => { + it('should support ', fakeAsync(() => { + const fixture = TestBed.createComponent(NgModelRangeForm); + // model -> view + fixture.componentInstance.val = 4; + fixture.detectChanges(); + tick(); + let input = fixture.debugElement.query(By.css('input')); + expect(input.nativeElement.value).toBe('4'); + fixture.detectChanges(); + tick(); + let newVal = '4'; + input.triggerEventHandler('input', {target: {value: newVal}}); + tick(); + // view -> model + fixture.detectChanges(); + expect(typeof(fixture.componentInstance.val)).toBe('number'); + })); + }); + describe('radio controls', () => { it('should support ', fakeAsync(() => { const fixture = TestBed.createComponent(NgModelRadioForm); @@ -1023,6 +1043,11 @@ class NgModelOptionsStandalone { two: string; } +@Component({selector: 'ng-model-range-form', template: ''}) +class NgModelRangeForm { + val: any; +} + @Component({ selector: 'ng-model-radio-form', template: `