angular2
Version:
Angular 2 - a web framework for modern web apps
51 lines • 7.13 kB
JavaScript
;"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var core_1 = require('angular2/core');
var control_value_accessor_1 = require('./control_value_accessor');
var lang_1 = require('angular2/src/facade/lang');
var DEFAULT_VALUE_ACCESSOR = lang_1.CONST_EXPR(new core_1.Provider(control_value_accessor_1.NG_VALUE_ACCESSOR, { useExisting: core_1.forwardRef(function () { return DefaultValueAccessor; }), multi: true }));
/**
* The default accessor for writing a value and listening to changes that is used by the
* {@link NgModel}, {@link NgFormControl}, and {@link NgControlName} directives.
*
* ### Example
* ```
* <input type="text" ngControl="searchQuery">
* ```
*/
var DefaultValueAccessor = (function () {
function DefaultValueAccessor(_renderer, _elementRef) {
this._renderer = _renderer;
this._elementRef = _elementRef;
this.onChange = function (_) { };
this.onTouched = function () { };
}
DefaultValueAccessor.prototype.writeValue = function (value) {
var normalizedValue = lang_1.isBlank(value) ? '' : value;
this._renderer.setElementProperty(this._elementRef.nativeElement, 'value', normalizedValue);
};
DefaultValueAccessor.prototype.registerOnChange = function (fn) { this.onChange = fn; };
DefaultValueAccessor.prototype.registerOnTouched = function (fn) { this.onTouched = fn; };
DefaultValueAccessor = __decorate([
core_1.Directive({
selector: 'input:not([type=checkbox])[ngControl],textarea[ngControl],input:not([type=checkbox])[ngFormControl],textarea[ngFormControl],input:not([type=checkbox])[ngModel],textarea[ngModel],[ngDefaultControl]',
// TODO: vsavkin replace the above selector with the one below it once
// https://github.com/angular/angular/issues/3011 is implemented
// selector: '[ngControl],[ngModel],[ngFormControl]',
host: { '(input)': 'onChange($event.target.value)', '(blur)': 'onTouched()' },
bindings: [DEFAULT_VALUE_ACCESSOR]
}),
__metadata('design:paramtypes', [core_1.Renderer, core_1.ElementRef])
], DefaultValueAccessor);
return DefaultValueAccessor;
}());
exports.DefaultValueAccessor = DefaultValueAccessor;
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