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1
| 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 common_1 = require('angular2/common');
var list_1 = require('../list/list');
var RADIO_VALUE_ACCESSOR = new core_1.Provider(common_1.NG_VALUE_ACCESSOR, { useExisting: core_1.forwardRef(function () { return RadioGroup; }), multi: true });
/**
* @name RadioGroup
* @description
* A radio group is a group of radio button components, and its value
* comes from the checked radio button's value. Selecting a radio
* button in the group unchecks all others in the group.
*
* See the [Angular 2 Docs](https://angular.io/docs/ts/latest/guide/forms.html)
* for more info on forms and inputs.
*
* @usage
* ```html
* <ion-list radio-group [(ngModel)]="autoManufacturers">
*
* <ion-list-header>
* Auto Manufacturers
* </ion-list-header>
*
* <ion-item>
* <ion-label>Cord</ion-label>
* <ion-radio value="cord"></ion-radio>
* </ion-item>
*
* <ion-item>
* <ion-label>Duesenberg</ion-label>
* <ion-radio value="duesenberg"></ion-radio>
* </ion-item>
*
* <ion-item>
* <ion-label>Hudson</ion-label>
* <ion-radio value="hudson"></ion-radio>
* </ion-item>
*
* <ion-item>
* <ion-label>Packard</ion-label>
* <ion-radio value="packard"></ion-radio>
* </ion-item>
*
* <ion-item>
* <ion-label>Studebaker</ion-label>
* <ion-radio value="studebaker"></ion-radio>
* </ion-item>
*
* </ion-list>
* ```
*
* @demo /docs/v2/demos/radio/
* @see {@link /docs/v2/components#radio Radio Component Docs}
*/
var RadioGroup = (function () {
function RadioGroup(_renderer, _elementRef) {
this._renderer = _renderer;
this._elementRef = _elementRef;
this._btns = [];
this._ids = -1;
this._init = false;
/**
* @output {any} expression to be evaluated when selection has been changed
*/
this.change = new core_1.EventEmitter();
this.id = ++radioGroupIds;
}
/**
* @private
*/
RadioGroup.prototype.writeValue = function (val) {
void 0;
this.value = val;
if (this._init) {
this._update();
this.onTouched();
this.change.emit(val);
}
this._init = true;
};
/**
* @private
*/
RadioGroup.prototype.ngAfterContentInit = function () {
var activeButton = this._btns.find(function (b) { return b.checked; });
if (activeButton) {
this._setActive(activeButton);
}
};
/**
* @private
*/
RadioGroup.prototype.registerOnChange = function (fn) {
var _this = this;
this._fn = fn;
this.onChange = function (val) {
void 0;
fn(val);
_this.value = val;
_this._update();
_this.onTouched();
_this.change.emit(val);
};
};
/**
* @private
*/
RadioGroup.prototype.registerOnTouched = function (fn) { this.onTouched = fn; };
/**
* @private
*/
RadioGroup.prototype._update = function () {
var _this = this;
// loop through each of the radiobuttons
this._btns.forEach(function (radioButton) {
// check this radiobutton if its value is
// the same as the radiogroups value
radioButton.checked = (radioButton.value === _this.value);
if (radioButton.checked) {
// if this button is checked, then set it as
// the radiogroup's active descendant
_this._setActive(radioButton);
}
});
};
RadioGroup.prototype._setActive = function (radioButton) {
this._renderer.setElementAttribute(this._elementRef.nativeElement, 'aria-activedescendant', radioButton.id);
};
/**
* @private
*/
RadioGroup.prototype.add = function (button) {
var _this = this;
this._btns.push(button);
// listen for radiobutton select events
button.select.subscribe(function (val) {
// this radiobutton has been selected
_this.onChange(val);
});
return this.id + '-' + (++this._ids);
};
/**
* @private
*/
RadioGroup.prototype.remove = function (button) {
var index = this._btns.indexOf(button);
if (index > -1) {
if (button.value === this.value) {
this.value = null;
}
this._btns.splice(index, 1);
}
};
Object.defineProperty(RadioGroup.prototype, "_header", {
/**
* @private
*/
set: function (header) {
if (header) {
if (!header.id) {
header.id = 'rg-hdr-' + this.id;
}
this._renderer.setElementAttribute(this._elementRef.nativeElement, 'aria-describedby', header.id);
}
},
enumerable: true,
configurable: true
});
/**
* @private
*/
RadioGroup.prototype.onChange = function (_) { };
/**
* @private
*/
RadioGroup.prototype.onTouched = function () { };
__decorate([
core_1.Output(),
__metadata('design:type', core_1.EventEmitter)
], RadioGroup.prototype, "change", void 0);
__decorate([
core_1.ContentChild(list_1.ListHeader),
__metadata('design:type', Object),
__metadata('design:paramtypes', [Object])
], RadioGroup.prototype, "_header", null);
RadioGroup = __decorate([
core_1.Directive({
selector: '[radio-group]',
host: {
'[attr.aria-activedescendant]': 'activeId',
'role': 'radiogroup'
},
providers: [RADIO_VALUE_ACCESSOR]
}),
__metadata('design:paramtypes', [core_1.Renderer, core_1.ElementRef])
], RadioGroup);
return RadioGroup;
})();
exports.RadioGroup = RadioGroup;
var radioGroupIds = -1;
|