/*!
 * 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,
    OnChanges,
    DoCheck,
    SimpleChanges,
    ContentChildren,
    QueryList
} from '@angular/core';


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

import DxTabs from 'devextreme/ui/tabs';


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';




/**
 * The Tabs is a tab strip used to switch between pages or views. This widget is included in the TabPanel widget, but you can use the Tabs separately as well.
 */
@Component({
    selector: 'dx-tabs',
    template: '',
    providers: [
        DxTemplateHost,
        WatcherHelper,
        NestedOptionHost,
        IterableDifferHelper
    ]
})
export class DxTabsComponent extends DxComponent implements OnDestroy, OnChanges, DoCheck {
    instance: DxTabs;


    /**
     * 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);
    }


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


    /**
     * The time period in milliseconds before the onItemHold event is raised.
     */
    @Input()
    get itemHoldTimeout(): number {
        return this._getOption('itemHoldTimeout');
    }
    set itemHoldTimeout(value: number) {
        this._setOption('itemHoldTimeout', value);
    }


    /**
     * An array of items displayed by the widget.
     */
    @Input()
    get items(): Array<string|
        any|
        { badge?: string, disabled?: boolean, html?: string, icon?: string, iconSrc?: string, template?: any, text?: string, visible?: boolean }> {
        return this._getOption('items');
    }
    set items(value: Array<string|
        any|
        { badge?: string, disabled?: boolean, html?: string, icon?: string, iconSrc?: 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 which data field provides keys for widget items.
     */
    @Input()
    get keyExpr(): Function|
        string {
        return this._getOption('keyExpr');
    }
    set keyExpr(value: Function|
        string) {
        this._setOption('keyExpr', 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 whether or not an end-user can scroll tabs by swiping.
     */
    @Input()
    get scrollByContent(): boolean {
        return this._getOption('scrollByContent');
    }
    set scrollByContent(value: boolean) {
        this._setOption('scrollByContent', value);
    }


    /**
     * Specifies whether or not an end-user can scroll tabs.
     */
    @Input()
    get scrollingEnabled(): boolean {
        return this._getOption('scrollingEnabled');
    }
    set scrollingEnabled(value: boolean) {
        this._setOption('scrollingEnabled', value);
    }


    /**
     * The index of the currently selected widget item.
     */
    @Input()
    get selectedIndex(): number {
        return this._getOption('selectedIndex');
    }
    set selectedIndex(value: number) {
        this._setOption('selectedIndex', value);
    }


    /**
     * The selected item object.
     */
    @Input()
    get selectedItem(): any {
        return this._getOption('selectedItem');
    }
    set selectedItem(value: any) {
        this._setOption('selectedItem', value);
    }


    /**
     * Specifies an array of currently selected item keys.
     */
    @Input()
    get selectedItemKeys(): Array<any> {
        return this._getOption('selectedItemKeys');
    }
    set selectedItemKeys(value: Array<any>) {
        this._setOption('selectedItemKeys', value);
    }


    /**
     * An array of currently selected item objects.
     */
    @Input()
    get selectedItems(): Array<string|
        number|
        any> {
        return this._getOption('selectedItems');
    }
    set selectedItems(value: Array<string|
        number|
        any>) {
        this._setOption('selectedItems', value);
    }


    /**
     * Specifies whether the widget enables an end-user to select only a single item or multiple items.
     */
    @Input()
    get selectionMode(): string {
        return this._getOption('selectionMode');
    }
    set selectionMode(value: string) {
        this._setOption('selectionMode', value);
    }


    /**
     * A Boolean value that specifies the availability of navigation buttons.
     */
    @Input()
    get showNavButtons(): boolean {
        return this._getOption('showNavButtons');
    }
    set showNavButtons(value: boolean) {
        this._setOption('showNavButtons', 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 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 itemClick event.
     */
    @Output() onItemClick: EventEmitter<any>;

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

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

    /**
     * A handler for the itemRendered event.
     */
    @Output() onItemRendered: 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 selectionChanged event. Raised after an item is selected or unselected.
     */
    @Output() onSelectionChanged: EventEmitter<any>;

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

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

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

    /**
     * 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 itemHoldTimeoutChange event.
     */
    @Output() itemHoldTimeoutChange: EventEmitter<number>;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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




    @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: 'itemClick', emit: 'onItemClick' },
            { subscribe: 'itemContextMenu', emit: 'onItemContextMenu' },
            { subscribe: 'itemHold', emit: 'onItemHold' },
            { subscribe: 'itemRendered', emit: 'onItemRendered' },
            { subscribe: 'optionChanged', emit: 'onOptionChanged' },
            { subscribe: 'selectionChanged', emit: 'onSelectionChanged' },
            { emit: 'accessKeyChange' },
            { emit: 'dataSourceChange' },
            { emit: 'disabledChange' },
            { emit: 'elementAttrChange' },
            { emit: 'focusStateEnabledChange' },
            { emit: 'heightChange' },
            { emit: 'hintChange' },
            { emit: 'hoverStateEnabledChange' },
            { emit: 'itemHoldTimeoutChange' },
            { emit: 'itemsChange' },
            { emit: 'itemTemplateChange' },
            { emit: 'keyExprChange' },
            { emit: 'rtlEnabledChange' },
            { emit: 'scrollByContentChange' },
            { emit: 'scrollingEnabledChange' },
            { emit: 'selectedIndexChange' },
            { emit: 'selectedItemChange' },
            { emit: 'selectedItemKeysChange' },
            { emit: 'selectedItemsChange' },
            { emit: 'selectionModeChange' },
            { emit: 'showNavButtonsChange' },
            { emit: 'tabIndexChange' },
            { emit: 'visibleChange' },
            { emit: 'widthChange' }
        ]);

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

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

    ngOnDestroy() {
        this._destroyWidget();
    }

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

}

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

})
export class DxTabsModule { }