fcadbf4bf6
This change allows ReflectiveInjector to be tree shaken resulting
in not needed Reflect polyfil and smaller bundles.
Code savings for HelloWorld using Closure:
Reflective: bundle.js: 105,864(34,190 gzip)
Static: bundle.js: 154,889(33,555 gzip)
645( 2%)
BREAKING CHANGE:
`platformXXXX()` no longer accepts providers which depend on reflection.
Specifically the method signature when from `Provider[]` to
`StaticProvider[]`.
Example:
Before:
```
[
MyClass,
{provide: ClassA, useClass: SubClassA}
]
```
After:
```
[
{provide: MyClass, deps: [Dep1,...]},
{provide: ClassA, useClass: SubClassA, deps: [Dep1,...]}
]
```
NOTE: This only applies to platform creation and providers for the JIT
compiler. It does not apply to `@Compotent` or `@NgModule` provides
declarations.
Benchpress note: Previously Benchpress also supported reflective
provides, which now require static providers.
DEPRECATION:
- `ReflectiveInjector` is now deprecated as it will be remove. Use
`Injector.create` as a replacement.
closes #18496
58 lines
1.7 KiB
TypeScript
58 lines
1.7 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Directive, ElementRef, Renderer2, StaticProvider, forwardRef} from '@angular/core';
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import {ControlValueAccessor, NG_VALUE_ACCESSOR} from './control_value_accessor';
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export const RANGE_VALUE_ACCESSOR: StaticProvider = {
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provide: NG_VALUE_ACCESSOR,
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useExisting: forwardRef(() => RangeValueAccessor),
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multi: true
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};
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/**
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* The accessor for writing a range value and listening to changes that is used by the
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* {@link NgModel}, {@link FormControlDirective}, and {@link FormControlName} directives.
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*
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* ### Example
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* ```
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* <input type="range" [(ngModel)]="age" >
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* ```
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*/
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@Directive({
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selector:
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'input[type=range][formControlName],input[type=range][formControl],input[type=range][ngModel]',
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host: {
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'(change)': 'onChange($event.target.value)',
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'(input)': 'onChange($event.target.value)',
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'(blur)': 'onTouched()'
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},
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providers: [RANGE_VALUE_ACCESSOR]
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})
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export class RangeValueAccessor implements ControlValueAccessor {
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onChange = (_: any) => {};
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onTouched = () => {};
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constructor(private _renderer: Renderer2, private _elementRef: ElementRef) {}
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writeValue(value: any): void {
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this._renderer.setProperty(this._elementRef.nativeElement, 'value', parseFloat(value));
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}
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registerOnChange(fn: (_: number|null) => void): void {
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this.onChange = (value) => { fn(value == '' ? null : parseFloat(value)); };
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}
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registerOnTouched(fn: () => void): void { this.onTouched = fn; }
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setDisabledState(isDisabled: boolean): void {
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this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);
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}
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}
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