angular2
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Angular 2 - a web framework for modern web apps
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JavaScript
;var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
var async_1 = require('angular2/src/facade/async');
var collection_1 = require('angular2/src/facade/collection');
var lang_1 = require('angular2/src/facade/lang');
var metadata_1 = require('angular2/src/core/metadata');
var di_1 = require('angular2/src/core/di');
var control_container_1 = require('./control_container');
var model_1 = require('../model');
var shared_1 = require('./shared');
var validators_1 = require('../validators');
var formDirectiveProvider = lang_1.CONST_EXPR(new di_1.Provider(control_container_1.ControlContainer, { useExisting: di_1.forwardRef(function () { return NgForm; }) }));
/**
* If `NgForm` is bound in a component, `<form>` elements in that component will be
* upgraded to use the Angular form system.
*
*##Typical Use
*
* Include `FORM_DIRECTIVES` in the `directives` section of a {@link View} annotation
* to use `NgForm` and its associated controls.
*
*##Structure
*
* An Angular form is a collection of `Control`s in some hierarchy.
* `Control`s can be at the top level or can be organized in `ControlGroup`s
* or `ControlArray`s. This hierarchy is reflected in the form's `value`, a
* JSON object that mirrors the form structure.
*
*##Submission
*
* The `ng-submit` event signals when the user triggers a form submission.
*
* ### Example ([live demo](http://plnkr.co/edit/ltdgYj4P0iY64AR71EpL?p=preview))
*
* ```typescript
* @Component({
* selector: 'my-app',
* template: `
* <div>
* <p>Submit the form to see the data object Angular builds</p>
* <h2>NgForm demo</h2>
* <form #f="form" (ng-submit)="onSubmit(f.value)">
* <h3>Control group: credentials</h3>
* <div ng-control-group="credentials">
* <p>Login: <input type="text" ng-control="login"></p>
* <p>Password: <input type="password" ng-control="password"></p>
* </div>
* <h3>Control group: person</h3>
* <div ng-control-group="person">
* <p>First name: <input type="text" ng-control="firstName"></p>
* <p>Last name: <input type="text" ng-control="lastName"></p>
* </div>
* <button type="submit">Submit Form</button>
* <p>Form data submitted:</p>
* </form>
* <pre>{{data}}</pre>
* </div>
* `,
* directives: [CORE_DIRECTIVES, FORM_DIRECTIVES]
* })
* export class App {
* constructor() {}
*
* data: string;
*
* onSubmit(data) {
* this.data = JSON.stringify(data, null, 2);
* }
* }
* ```
*/
var NgForm = (function (_super) {
__extends(NgForm, _super);
function NgForm(validators, asyncValidators) {
_super.call(this);
this.ngSubmit = new async_1.EventEmitter();
this.form = new model_1.ControlGroup({}, null, shared_1.composeValidators(validators), shared_1.composeAsyncValidators(asyncValidators));
}
Object.defineProperty(NgForm.prototype, "formDirective", {
get: function () { return this; },
enumerable: true,
configurable: true
});
Object.defineProperty(NgForm.prototype, "control", {
get: function () { return this.form; },
enumerable: true,
configurable: true
});
Object.defineProperty(NgForm.prototype, "path", {
get: function () { return []; },
enumerable: true,
configurable: true
});
Object.defineProperty(NgForm.prototype, "controls", {
get: function () { return this.form.controls; },
enumerable: true,
configurable: true
});
NgForm.prototype.addControl = function (dir) {
var _this = this;
async_1.PromiseWrapper.scheduleMicrotask(function () {
var container = _this._findContainer(dir.path);
var ctrl = new model_1.Control();
shared_1.setUpControl(ctrl, dir);
container.addControl(dir.name, ctrl);
ctrl.updateValueAndValidity({ emitEvent: false });
});
};
NgForm.prototype.getControl = function (dir) { return this.form.find(dir.path); };
NgForm.prototype.removeControl = function (dir) {
var _this = this;
async_1.PromiseWrapper.scheduleMicrotask(function () {
var container = _this._findContainer(dir.path);
if (lang_1.isPresent(container)) {
container.removeControl(dir.name);
container.updateValueAndValidity({ emitEvent: false });
}
});
};
NgForm.prototype.addControlGroup = function (dir) {
var _this = this;
async_1.PromiseWrapper.scheduleMicrotask(function () {
var container = _this._findContainer(dir.path);
var group = new model_1.ControlGroup({});
shared_1.setUpControlGroup(group, dir);
container.addControl(dir.name, group);
group.updateValueAndValidity({ emitEvent: false });
});
};
NgForm.prototype.removeControlGroup = function (dir) {
var _this = this;
async_1.PromiseWrapper.scheduleMicrotask(function () {
var container = _this._findContainer(dir.path);
if (lang_1.isPresent(container)) {
container.removeControl(dir.name);
container.updateValueAndValidity({ emitEvent: false });
}
});
};
NgForm.prototype.getControlGroup = function (dir) {
return this.form.find(dir.path);
};
NgForm.prototype.updateModel = function (dir, value) {
var _this = this;
async_1.PromiseWrapper.scheduleMicrotask(function () {
var ctrl = _this.form.find(dir.path);
ctrl.updateValue(value);
});
};
NgForm.prototype.onSubmit = function () {
async_1.ObservableWrapper.callNext(this.ngSubmit, null);
return false;
};
/** @internal */
NgForm.prototype._findContainer = function (path) {
path.pop();
return collection_1.ListWrapper.isEmpty(path) ? this.form : this.form.find(path);
};
NgForm = __decorate([
metadata_1.Directive({
selector: 'form:not([ng-no-form]):not([ng-form-model]),ng-form,[ng-form]',
bindings: [formDirectiveProvider],
host: {
'(submit)': 'onSubmit()',
},
outputs: ['ngSubmit'],
exportAs: 'form'
}),
__param(0, di_1.Optional()),
__param(0, di_1.Inject(validators_1.NG_VALIDATORS)),
__param(1, di_1.Optional()),
__param(1, di_1.Inject(validators_1.NG_ASYNC_VALIDATORS)),
__metadata('design:paramtypes', [Array, Array])
], NgForm);
return NgForm;
})(control_container_1.ControlContainer);
exports.NgForm = NgForm;
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