angular2
Version:
Angular 2 - a web framework for modern web apps
45 lines • 5.9 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc);
switch (arguments.length) {
case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
}
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { Directive, Renderer, ElementRef, forwardRef, Provider } from 'angular2/core';
import { NG_VALUE_ACCESSOR } from './control_value_accessor';
import { CONST_EXPR } from 'angular2/src/facade/lang';
const CHECKBOX_VALUE_ACCESSOR = CONST_EXPR(new Provider(NG_VALUE_ACCESSOR, { useExisting: forwardRef(() => CheckboxControlValueAccessor), multi: true }));
/**
* The accessor for writing a value and listening to changes on a checkbox input element.
*
* ### Example
* ```
* <input type="checkbox" ng-control="rememberLogin">
* ```
*/
export let CheckboxControlValueAccessor = class {
constructor(_renderer, _elementRef) {
this._renderer = _renderer;
this._elementRef = _elementRef;
this.onChange = (_) => { };
this.onTouched = () => { };
}
writeValue(value) {
this._renderer.setElementProperty(this._elementRef, 'checked', value);
}
registerOnChange(fn) { this.onChange = fn; }
registerOnTouched(fn) { this.onTouched = fn; }
};
CheckboxControlValueAccessor = __decorate([
Directive({
selector: 'input[type=checkbox][ng-control],input[type=checkbox][ng-form-control],input[type=checkbox][ng-model]',
host: { '(change)': 'onChange($event.target.checked)', '(blur)': 'onTouched()' },
bindings: [CHECKBOX_VALUE_ACCESSOR]
}),
__metadata('design:paramtypes', [Renderer, ElementRef])
], CheckboxControlValueAccessor);
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