/*!
 * 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
} from '@angular/core';



import DxRangeSlider from 'devextreme/ui/range_slider';

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 { DxoLabelModule } from './nested/label';
import { DxoFormatModule } from './nested/format';
import { DxoTooltipModule } from './nested/tooltip';





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

/**
 * The RangeSlider is a widget that allows an end user to choose a range of numeric values.
 */
@Component({
    selector: 'dx-range-slider',
    template: '',
    providers: [
        DxTemplateHost,
        WatcherHelper,
        CUSTOM_VALUE_ACCESSOR_PROVIDER,
        NestedOptionHost,
        IterableDifferHelper
    ]
})
export class DxRangeSliderComponent extends DxComponent implements OnDestroy, OnInit, AfterViewInit, ControlValueAccessor, OnChanges, DoCheck {
    instance: DxRangeSlider;

    @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);
    }


    /**
     * 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);
    }


    /**
     * The right edge of the interval currently selected using the range slider.
     */
    @Input()
    get end(): number {
        return this._getOption('end');
    }
    set end(value: number) {
        this._setOption('end', value);
    }


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


    /**
     * Specifies the step by which a handle moves when a user presses Page Up or Page Down.
     */
    @Input()
    get keyStep(): number {
        return this._getOption('keyStep');
    }
    set keyStep(value: number) {
        this._setOption('keyStep', value);
    }


    /**
     * Configures the labels displayed at the min and max values.
     */
    @Input()
    get label(): any {
        return this._getOption('label');
    }
    set label(value: any) {
        this._setOption('label', value);
    }


    /**
     * The maximum value the widget can accept.
     */
    @Input()
    get max(): number {
        return this._getOption('max');
    }
    set max(value: number) {
        this._setOption('max', value);
    }


    /**
     * The minimum value the widget can accept.
     */
    @Input()
    get min(): number {
        return this._getOption('min');
    }
    set min(value: number) {
        this._setOption('min', 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 whether to highlight the selected range.
     */
    @Input()
    get showRange(): boolean {
        return this._getOption('showRange');
    }
    set showRange(value: boolean) {
        this._setOption('showRange', value);
    }


    /**
     * The left edge of the interval currently selected using the range slider.
     */
    @Input()
    get start(): number {
        return this._getOption('start');
    }
    set start(value: number) {
        this._setOption('start', value);
    }


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


    /**
     * Specifies the step by which the widget's value changes when a user drags a handler.
     */
    @Input()
    get step(): number {
        return this._getOption('step');
    }
    set step(value: number) {
        this._setOption('step', 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);
    }


    /**
     * Configures a tooltip.
     */
    @Input()
    get tooltip(): any {
        return this._getOption('tooltip');
    }
    set tooltip(value: any) {
        this._setOption('tooltip', 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(): Array<number> {
        return this._getOption('value');
    }
    set value(value: Array<number>) {
        this._setOption('value', 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 disabledChange event.
     */
    @Output() disabledChange: EventEmitter<boolean>;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * 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<Array<number>>;

    /**
     * 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 = () => {};



    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: 'disabledChange' },
            { emit: 'elementAttrChange' },
            { emit: 'endChange' },
            { emit: 'endNameChange' },
            { emit: 'focusStateEnabledChange' },
            { emit: 'heightChange' },
            { emit: 'hintChange' },
            { emit: 'hoverStateEnabledChange' },
            { emit: 'isValidChange' },
            { emit: 'keyStepChange' },
            { emit: 'labelChange' },
            { emit: 'maxChange' },
            { emit: 'minChange' },
            { emit: 'readOnlyChange' },
            { emit: 'rtlEnabledChange' },
            { emit: 'showRangeChange' },
            { emit: 'startChange' },
            { emit: 'startNameChange' },
            { emit: 'stepChange' },
            { emit: 'tabIndexChange' },
            { emit: 'tooltipChange' },
            { emit: 'validationErrorChange' },
            { emit: 'validationMessageModeChange' },
            { emit: 'valueChange' },
            { emit: 'visibleChange' },
            { emit: 'widthChange' },
            { emit: 'onBlur' }
        ]);

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

    protected _createInstance(element, options) {
        return new DxRangeSlider(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('value', changes);
    }

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

    ngDoCheck() {
        this._idh.doCheck('value');
        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: [
    DxoLabelModule,
    DxoFormatModule,
    DxoTooltipModule,
    DxTemplateModule
  ],
  declarations: [
    DxRangeSliderComponent
  ],
  exports: [
    DxRangeSliderComponent,
    DxoLabelModule,
    DxoFormatModule,
    DxoTooltipModule,
    DxTemplateModule
  ],
  providers: [EventsRegistrator]

})
export class DxRangeSliderModule { }