/*!
 * devextreme-angular-test
 * Version: 17.2.8
 * Build date: Mon Feb 05 2018
 *
 * Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
 *
 * This software may be modified and distributed under the terms
 * of the MIT license. See the LICENSE file in the root of the project for details.
 *
 * https://github.com/DevExpress/devextreme-angular
 */











import {
    Component,
    NgModule,
    ElementRef,
    NgZone,
    Input,
    Output,
    OnDestroy,
    Injector,
    EventEmitter,
    OnInit,
    AfterViewInit,
    ContentChild,
    forwardRef,
    HostListener,
    OnChanges,
    DoCheck,
    SimpleChanges,
    ContentChildren,
    QueryList
} from '@angular/core';


import DevExpress from 'devextreme/bundles/dx.all';

import DxRadioGroup from 'devextreme/ui/radio_group';

import { DxValidatorComponent } from './validator';

import {
    ControlValueAccessor,
    NG_VALUE_ACCESSOR
} from '@angular/forms';

import { DxComponent } from '../core/component';
import { DxTemplateHost } from '../core/template-host';
import { DxTemplateModule } from '../core/template';
import { EventsRegistrator } from '../core/events-strategy';
import { NestedOptionHost } from '../core/nested-option';
import { WatcherHelper } from '../core/watcher-helper';
import { IterableDifferHelper } from '../core/iterable-differ-helper';

import { DxiItemModule } from './nested/item-dxi';

import { DxiItemComponent } from './nested/item-dxi';




const CUSTOM_VALUE_ACCESSOR_PROVIDER = {
    provide: NG_VALUE_ACCESSOR,
    useExisting: forwardRef(() => DxRadioGroupComponent),
    multi: true
};

/**
 * The RadioGroup is a widget that contains a set of radio buttons and allows an end user to make a single selection from the set.
 */
@Component({
    selector: 'dx-radio-group',
    template: '',
    providers: [
        DxTemplateHost,
        WatcherHelper,
        CUSTOM_VALUE_ACCESSOR_PROVIDER,
        NestedOptionHost,
        IterableDifferHelper
    ]
})
export class DxRadioGroupComponent extends DxComponent implements OnDestroy, OnInit, AfterViewInit, ControlValueAccessor, OnChanges, DoCheck {
    instance: DxRadioGroup;

    @ContentChild(DxValidatorComponent)
    validator: DxValidatorComponent;


    /**
     * Specifies the shortcut key that sets focus on the widget.
     */
    @Input()
    get accessKey(): string {
        return this._getOption('accessKey');
    }
    set accessKey(value: string) {
        this._setOption('accessKey', value);
    }


    /**
     * Specifies whether or not the widget changes its state when interacting with a user.
     */
    @Input()
    get activeStateEnabled(): boolean {
        return this._getOption('activeStateEnabled');
    }
    set activeStateEnabled(value: boolean) {
        this._setOption('activeStateEnabled', value);
    }


    /**
     * A data source used to fetch data to be displayed by the widget.
     */
    @Input()
    get dataSource(): DevExpress.data.DataSource|
        DevExpress.data.DataSourceOptions|
        string|
        Array<any> {
        return this._getOption('dataSource');
    }
    set dataSource(value: DevExpress.data.DataSource|
        DevExpress.data.DataSourceOptions|
        string|
        Array<any>) {
        this._setOption('dataSource', value);
    }


    /**
     * Specifies whether the widget responds to user interaction.
     */
    @Input()
    get disabled(): boolean {
        return this._getOption('disabled');
    }
    set disabled(value: boolean) {
        this._setOption('disabled', value);
    }


    /**
     * Specifies the name of the data source item field whose value is displayed by the widget.
     */
    @Input()
    get displayExpr(): Function|
        string {
        return this._getOption('displayExpr');
    }
    set displayExpr(value: Function|
        string) {
        this._setOption('displayExpr', value);
    }


    /**
     * Specifies the attributes to be attached to the widget's root element.
     */
    @Input()
    get elementAttr(): any {
        return this._getOption('elementAttr');
    }
    set elementAttr(value: any) {
        this._setOption('elementAttr', value);
    }


    /**
     * Specifies whether the widget can be focused using keyboard navigation.
     */
    @Input()
    get focusStateEnabled(): boolean {
        return this._getOption('focusStateEnabled');
    }
    set focusStateEnabled(value: boolean) {
        this._setOption('focusStateEnabled', value);
    }


    /**
     * Specifies the widget's height.
     */
    @Input()
    get height(): number|
        Function|
        string {
        return this._getOption('height');
    }
    set height(value: number|
        Function|
        string) {
        this._setOption('height', value);
    }


    /**
     * Specifies text for a hint that appears when a user pauses on the widget.
     */
    @Input()
    get hint(): string {
        return this._getOption('hint');
    }
    set hint(value: string) {
        this._setOption('hint', value);
    }


    /**
     * Specifies whether the widget changes its state when a user pauses on it.
     */
    @Input()
    get hoverStateEnabled(): boolean {
        return this._getOption('hoverStateEnabled');
    }
    set hoverStateEnabled(value: boolean) {
        this._setOption('hoverStateEnabled', value);
    }


    /**
     * Specifies whether the editor's value is valid.
     */
    @Input()
    get isValid(): boolean {
        return this._getOption('isValid');
    }
    set isValid(value: boolean) {
        this._setOption('isValid', value);
    }


    /**
     * An array of items displayed by the widget.
     */
    @Input()
    get items(): Array<any|
        { disabled?: boolean, html?: string, template?: any, text?: string, visible?: boolean }> {
        return this._getOption('items');
    }
    set items(value: Array<any|
        { disabled?: boolean, html?: string, template?: any, text?: string, visible?: boolean }>) {
        this._setOption('items', value);
    }


    /**
     * Specifies a custom template for an item.
     */
    @Input()
    get itemTemplate(): any {
        return this._getOption('itemTemplate');
    }
    set itemTemplate(value: any) {
        this._setOption('itemTemplate', value);
    }


    /**
     * Specifies the radio group layout.
     */
    @Input()
    get layout(): string {
        return this._getOption('layout');
    }
    set layout(value: string) {
        this._setOption('layout', value);
    }


    /**
     * The value to be assigned to the `name` attribute of the underlying HTML element.
     */
    @Input()
    get name(): string {
        return this._getOption('name');
    }
    set name(value: string) {
        this._setOption('name', value);
    }


    /**
     * A Boolean value specifying whether or not the widget is read-only.
     */
    @Input()
    get readOnly(): boolean {
        return this._getOption('readOnly');
    }
    set readOnly(value: boolean) {
        this._setOption('readOnly', value);
    }


    /**
     * Switches the widget to a right-to-left representation.
     */
    @Input()
    get rtlEnabled(): boolean {
        return this._getOption('rtlEnabled');
    }
    set rtlEnabled(value: boolean) {
        this._setOption('rtlEnabled', value);
    }


    /**
     * Specifies the number of the element when the Tab key is used for navigating.
     */
    @Input()
    get tabIndex(): number {
        return this._getOption('tabIndex');
    }
    set tabIndex(value: number) {
        this._setOption('tabIndex', value);
    }


    /**
     * Specifies information on the validation error when using a custom validation engine. Should be changed at runtime along with the isValid option.
     */
    @Input()
    get validationError(): any {
        return this._getOption('validationError');
    }
    set validationError(value: any) {
        this._setOption('validationError', value);
    }


    /**
     * Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed.
     */
    @Input()
    get validationMessageMode(): string {
        return this._getOption('validationMessageMode');
    }
    set validationMessageMode(value: string) {
        this._setOption('validationMessageMode', value);
    }


    /**
     * Specifies the currently selected value.
     */
    @Input()
    get value(): any {
        return this._getOption('value');
    }
    set value(value: any) {
        this._setOption('value', value);
    }


    /**
     * Specifies which data field provides the widget's value. When this option is not set, the value is the entire data object.
     */
    @Input()
    get valueExpr(): Function|
        string {
        return this._getOption('valueExpr');
    }
    set valueExpr(value: Function|
        string) {
        this._setOption('valueExpr', value);
    }


    /**
     * Specifies whether the widget is visible.
     */
    @Input()
    get visible(): boolean {
        return this._getOption('visible');
    }
    set visible(value: boolean) {
        this._setOption('visible', value);
    }


    /**
     * Specifies the widget's width.
     */
    @Input()
    get width(): number|
        Function|
        string {
        return this._getOption('width');
    }
    set width(value: number|
        Function|
        string) {
        this._setOption('width', value);
    }

    /**
     * A handler for the contentReady event. Executed when the widget's content is ready. This handler may be executed multiple times during the widget's lifetime depending on the number of times its content changes.
     */
    @Output() onContentReady: EventEmitter<any>;

    /**
     * A handler for the disposing event. Executed when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only.
     */
    @Output() onDisposing: EventEmitter<any>;

    /**
     * A handler for the initialized event. Executed only once, after the widget is initialized.
     */
    @Output() onInitialized: EventEmitter<any>;

    /**
     * A handler for the optionChanged event. Executed after an option of the widget is changed.
     */
    @Output() onOptionChanged: EventEmitter<any>;

    /**
     * A handler for the valueChanged event.
     */
    @Output() onValueChanged: EventEmitter<any>;

    /**
     * A handler for the accessKeyChange event.
     */
    @Output() accessKeyChange: EventEmitter<string>;

    /**
     * A handler for the activeStateEnabledChange event.
     */
    @Output() activeStateEnabledChange: EventEmitter<boolean>;

    /**
     * A handler for the dataSourceChange event.
     */
    @Output() dataSourceChange: EventEmitter<DevExpress.data.DataSource|
        DevExpress.data.DataSourceOptions|
        string|
        Array<any>>;

    /**
     * A handler for the disabledChange event.
     */
    @Output() disabledChange: EventEmitter<boolean>;

    /**
     * A handler for the displayExprChange event.
     */
    @Output() displayExprChange: EventEmitter<Function|
        string>;

    /**
     * A handler for the elementAttrChange event.
     */
    @Output() elementAttrChange: EventEmitter<any>;

    /**
     * A handler for the focusStateEnabledChange event.
     */
    @Output() focusStateEnabledChange: EventEmitter<boolean>;

    /**
     * A handler for the heightChange event.
     */
    @Output() heightChange: EventEmitter<number|
        Function|
        string>;

    /**
     * A handler for the hintChange event.
     */
    @Output() hintChange: EventEmitter<string>;

    /**
     * A handler for the hoverStateEnabledChange event.
     */
    @Output() hoverStateEnabledChange: EventEmitter<boolean>;

    /**
     * A handler for the isValidChange event.
     */
    @Output() isValidChange: EventEmitter<boolean>;

    /**
     * A handler for the itemsChange event.
     */
    @Output() itemsChange: EventEmitter<Array<any|
        { disabled?: boolean, html?: string, template?: any, text?: string, visible?: boolean }>>;

    /**
     * A handler for the itemTemplateChange event.
     */
    @Output() itemTemplateChange: EventEmitter<any>;

    /**
     * A handler for the layoutChange event.
     */
    @Output() layoutChange: EventEmitter<string>;

    /**
     * A handler for the nameChange event.
     */
    @Output() nameChange: EventEmitter<string>;

    /**
     * A handler for the readOnlyChange event.
     */
    @Output() readOnlyChange: EventEmitter<boolean>;

    /**
     * A handler for the rtlEnabledChange event.
     */
    @Output() rtlEnabledChange: EventEmitter<boolean>;

    /**
     * A handler for the tabIndexChange event.
     */
    @Output() tabIndexChange: EventEmitter<number>;

    /**
     * A handler for the validationErrorChange event.
     */
    @Output() validationErrorChange: EventEmitter<any>;

    /**
     * A handler for the validationMessageModeChange event.
     */
    @Output() validationMessageModeChange: EventEmitter<string>;

    /**
     * A handler for the valueChange event.
     */
    @Output() valueChange: EventEmitter<any>;

    /**
     * A handler for the valueExprChange event.
     */
    @Output() valueExprChange: EventEmitter<Function|
        string>;

    /**
     * A handler for the visibleChange event.
     */
    @Output() visibleChange: EventEmitter<boolean>;

    /**
     * A handler for the widthChange event.
     */
    @Output() widthChange: EventEmitter<number|
        Function|
        string>;

    @Output() onBlur: EventEmitter<any>;


    @HostListener('valueChange', ['$event']) change(_) { }
    @HostListener('onBlur', ['$event']) touched = () => {};


    @ContentChildren(DxiItemComponent)
    get itemsChildren(): QueryList<DxiItemComponent> {
        return this._getOption('items');
    }
    set itemsChildren(value) {
        this.setChildren('items', value);
    }


    constructor(elementRef: ElementRef, ngZone: NgZone, templateHost: DxTemplateHost, injector: Injector,
            private _watcherHelper: WatcherHelper,
            private _idh: IterableDifferHelper, optionHost: NestedOptionHost) {

        super(elementRef, ngZone, templateHost, _watcherHelper);
        injector.get(EventsRegistrator);

        this._createEventEmitters([
            { subscribe: 'contentReady', emit: 'onContentReady' },
            { subscribe: 'disposing', emit: 'onDisposing' },
            { subscribe: 'initialized', emit: 'onInitialized' },
            { subscribe: 'optionChanged', emit: 'onOptionChanged' },
            { subscribe: 'valueChanged', emit: 'onValueChanged' },
            { emit: 'accessKeyChange' },
            { emit: 'activeStateEnabledChange' },
            { emit: 'dataSourceChange' },
            { emit: 'disabledChange' },
            { emit: 'displayExprChange' },
            { emit: 'elementAttrChange' },
            { emit: 'focusStateEnabledChange' },
            { emit: 'heightChange' },
            { emit: 'hintChange' },
            { emit: 'hoverStateEnabledChange' },
            { emit: 'isValidChange' },
            { emit: 'itemsChange' },
            { emit: 'itemTemplateChange' },
            { emit: 'layoutChange' },
            { emit: 'nameChange' },
            { emit: 'readOnlyChange' },
            { emit: 'rtlEnabledChange' },
            { emit: 'tabIndexChange' },
            { emit: 'validationErrorChange' },
            { emit: 'validationMessageModeChange' },
            { emit: 'valueChange' },
            { emit: 'valueExprChange' },
            { emit: 'visibleChange' },
            { emit: 'widthChange' },
            { emit: 'onBlur' }
        ]);

        this._idh.setHost(this);
        optionHost.setHost(this);
    }

    protected _createInstance(element, options) {
        return new DxRadioGroup(element, options);
    }

    writeValue(value: any): void {
        this.value = value;
    }

    setDisabledState(isDisabled: boolean): void {
        this.disabled = isDisabled;
    }

    registerOnChange(fn: (_: any) => void): void { this.change = fn; }
    registerOnTouched(fn: () => void): void { this.touched = fn; }

    _createWidget(element: any) {
        super._createWidget(element);
        this.instance.on('focusOut', (e) => {
            this.eventHelper.fireNgEvent('onBlur', [e]);
        });
    }

    ngOnDestroy() {
        this._destroyWidget();
    }

    ngOnChanges(changes: SimpleChanges) {
        super.ngOnChanges(changes);
        this.setupChanges('dataSource', changes);
        this.setupChanges('items', changes);
    }

    setupChanges(prop: string, changes: SimpleChanges) {
        if (!(prop in this._optionsToUpdate)) {
            this._idh.setup(prop, changes);
        }
    }

    ngDoCheck() {
        this._idh.doCheck('dataSource');
        this._idh.doCheck('items');
        this._watcherHelper.checkWatchers();
        super.ngDoCheck();
    }

    _setOption(name: string, value: any) {
        let isSetup = this._idh.setupSingle(name, value);
        let isChanged = this._idh.getChanges(name, value) !== null;

        if (isSetup || isChanged) {
            super._setOption(name, value);
        }
    }

    ngOnInit() {
        super.ngOnInit();
        if (this.validator) {
            this.validator.createInstanceOnInit = false;
        }
    }
    ngAfterViewInit() {
        super.ngAfterViewInit();
        if (this.validator) {
            this.validator.createInstance(this.element.nativeElement);
        }
    }
}

@NgModule({
  imports: [
    DxiItemModule,
    DxTemplateModule
  ],
  declarations: [
    DxRadioGroupComponent
  ],
  exports: [
    DxRadioGroupComponent,
    DxiItemModule,
    DxTemplateModule
  ],
  providers: [EventsRegistrator]

})
export class DxRadioGroupModule { }