angular2
Version:
Angular 2 - a web framework for modern web apps
82 lines • 4.03 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);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
var di_1 = require('angular2/src/core/di');
var render_1 = require('angular2/src/core/render');
var linker_1 = require('angular2/src/core/linker');
var metadata_1 = require('angular2/src/core/metadata');
var async_1 = require('angular2/src/facade/async');
var control_value_accessor_1 = require('./control_value_accessor');
var lang_1 = require('angular2/src/facade/lang');
var shared_1 = require('./shared');
var SELECT_VALUE_ACCESSOR = lang_1.CONST_EXPR(new di_1.Provider(control_value_accessor_1.NG_VALUE_ACCESSOR, { useExisting: di_1.forwardRef(function () { return SelectControlValueAccessor; }), multi: true }));
/**
* Marks `<option>` as dynamic, so Angular can be notified when options change.
*
* ### Example
*
* ```
* <select ng-control="city">
* <option *ng-for="#c of cities" [value]="c"></option>
* </select>
* ```
*/
var NgSelectOption = (function () {
function NgSelectOption() {
}
NgSelectOption = __decorate([
metadata_1.Directive({ selector: 'option' }),
__metadata('design:paramtypes', [])
], NgSelectOption);
return NgSelectOption;
})();
exports.NgSelectOption = NgSelectOption;
/**
* The accessor for writing a value and listening to changes on a select element.
*/
var SelectControlValueAccessor = (function () {
function SelectControlValueAccessor(_renderer, _elementRef, query) {
this._renderer = _renderer;
this._elementRef = _elementRef;
this.onChange = function (_) { };
this.onTouched = function () { };
this._updateValueWhenListOfOptionsChanges(query);
}
SelectControlValueAccessor.prototype.writeValue = function (value) {
this.value = value;
shared_1.setProperty(this._renderer, this._elementRef, "value", value);
};
SelectControlValueAccessor.prototype.registerOnChange = function (fn) { this.onChange = fn; };
SelectControlValueAccessor.prototype.registerOnTouched = function (fn) { this.onTouched = fn; };
SelectControlValueAccessor.prototype._updateValueWhenListOfOptionsChanges = function (query) {
var _this = this;
async_1.ObservableWrapper.subscribe(query.changes, function (_) { return _this.writeValue(_this.value); });
};
SelectControlValueAccessor = __decorate([
metadata_1.Directive({
selector: 'select[ng-control],select[ng-form-control],select[ng-model]',
host: {
'(change)': 'onChange($event.target.value)',
'(input)': 'onChange($event.target.value)',
'(blur)': 'onTouched()'
},
bindings: [SELECT_VALUE_ACCESSOR]
}),
__param(2, metadata_1.Query(NgSelectOption, { descendants: true })),
__metadata('design:paramtypes', [render_1.Renderer, linker_1.ElementRef, linker_1.QueryList])
], SelectControlValueAccessor);
return SelectControlValueAccessor;
})();
exports.SelectControlValueAccessor = SelectControlValueAccessor;
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