angular2
Version:
Angular 2 - a web framework for modern web apps
94 lines • 11.2 kB
JavaScript
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 __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
import { CONST_EXPR } from 'angular2/src/facade/lang';
import { EventEmitter, ObservableWrapper } from 'angular2/src/facade/async';
import { Directive, forwardRef, Provider, Inject, Optional, Self } from 'angular2/core';
import { NG_VALUE_ACCESSOR } from './control_value_accessor';
import { NgControl } from './ng_control';
import { Control } from '../model';
import { NG_VALIDATORS, NG_ASYNC_VALIDATORS } from '../validators';
import { setUpControl, isPropertyUpdated, selectValueAccessor, composeValidators, composeAsyncValidators } from './shared';
const formControlBinding = CONST_EXPR(new Provider(NgControl, { useExisting: forwardRef(() => NgModel) }));
/**
* Binds a domain model to a form control.
*
* ### Usage
*
* `ngModel` binds an existing domain model to a form control. For a
* two-way binding, use `[(ngModel)]` to ensure the model updates in
* both directions.
*
* ### Example ([live demo](http://plnkr.co/edit/R3UX5qDaUqFO2VYR0UzH?p=preview))
* ```typescript
* @Component({
* selector: "search-comp",
* directives: [FORM_DIRECTIVES],
* template: `<input type='text' [(ngModel)]="searchQuery">`
* })
* class SearchComp {
* searchQuery: string;
* }
* ```
*/
export let NgModel = class NgModel extends NgControl {
constructor(_validators, _asyncValidators, valueAccessors) {
super();
this._validators = _validators;
this._asyncValidators = _asyncValidators;
/** @internal */
this._control = new Control();
/** @internal */
this._added = false;
this.update = new EventEmitter();
this.valueAccessor = selectValueAccessor(this, valueAccessors);
}
ngOnChanges(changes) {
if (!this._added) {
setUpControl(this._control, this);
this._control.updateValueAndValidity({ emitEvent: false });
this._added = true;
}
if (isPropertyUpdated(changes, this.viewModel)) {
this._control.updateValue(this.model);
this.viewModel = this.model;
}
}
get control() { return this._control; }
get path() { return []; }
get validator() { return composeValidators(this._validators); }
get asyncValidator() { return composeAsyncValidators(this._asyncValidators); }
viewToModelUpdate(newValue) {
this.viewModel = newValue;
ObservableWrapper.callEmit(this.update, newValue);
}
};
NgModel = __decorate([
Directive({
selector: '[ngModel]:not([ngControl]):not([ngFormControl])',
bindings: [formControlBinding],
inputs: ['model: ngModel'],
outputs: ['update: ngModelChange'],
exportAs: 'ngForm'
}),
__param(0, Optional()),
__param(0, Self()),
__param(0, Inject(NG_VALIDATORS)),
__param(1, Optional()),
__param(1, Self()),
__param(1, Inject(NG_ASYNC_VALIDATORS)),
__param(2, Optional()),
__param(2, Self()),
__param(2, Inject(NG_VALUE_ACCESSOR)),
__metadata('design:paramtypes', [Array, Array, Array])
], NgModel);
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