smart-webcomponents/source/angular/rating/smart.rating.ts

Web Components & Custom Elements for Professional Web Applications

import { Rating } from './../index';
import { Animation, ElementRenderMode} from './../index';
import { Component, Directive, AfterViewInit, ElementRef, Input, OnInit, OnChanges, OnDestroy, SimpleChanges, forwardRef, ChangeDetectionStrategy, Output, EventEmitter } from '@angular/core';
import { BaseElement, Smart } from './smart.element';
export { Animation, ElementRenderMode} from './../index';
export { Smart } from './smart.element';
export { Rating } from './../index';
import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';



const CUSTOM_INPUT_CONTROL_VALUE_ACCESSOR: any = {
    provide: NG_VALUE_ACCESSOR,
    useExisting: forwardRef(() => RatingComponent),
    multi: true
}

@Directive({
	exportAs: 'smart-rating',	selector: 'smart-rating, [smart-rating]',
	providers: [CUSTOM_INPUT_CONTROL_VALUE_ACCESSOR]

})

export class RatingComponent extends BaseElement implements OnInit, AfterViewInit, OnDestroy, OnChanges, ControlValueAccessor {
	constructor(ref: ElementRef<Rating>) {
		super(ref);
		this.nativeElement = ref.nativeElement as Rating;
	}

	private eventHandlers: any[] = [];

	public declare nativeElement: Rating;
	/** @description Creates the component on demand.
	 * @param properties An optional object of properties, which will be added to the template binded ones.
	 */
	public createComponent(properties = {}): any {
    	this.nativeElement = <Rating>document.createElement('smart-rating');
		for (let propertyName in properties) { 
 			this.nativeElement[propertyName] = properties[propertyName];
		}
		return this.nativeElement;
	}
        /**
        * @description
        * The registered callback function called when a change event occurs on the form elements.
        */
       _onChange: (value: any) => void = () => {};
        /**
        * @description
        * The registered callback function called when a blur event occurs on the form elements.
        */
       _onTouched: () => any = () => {};


	/** @description Sets or gets the animation mode. Animation is disabled when the property is set to 'none' */
	@Input()
	get animation(): Animation | string {
		return this.nativeElement ? this.nativeElement.animation : undefined;
	}
	set animation(value: Animation | string) {
		this.nativeElement ? this.nativeElement.animation = value : undefined;
	}

	/** @description Disables the interaction with the element. */
	@Input()
	get disabled(): boolean {
		return this.nativeElement ? this.nativeElement.disabled : undefined;
	}
	set disabled(value: boolean) {
		this.nativeElement ? this.nativeElement.disabled = value : undefined;
	}

	/** @description Sets or gets the unlockKey which unlocks the product. */
	@Input()
	get unlockKey(): string {
		return this.nativeElement ? this.nativeElement.unlockKey : undefined;
	}
	set unlockKey(value: string) {
		this.nativeElement ? this.nativeElement.unlockKey = value : undefined;
	}

	/** @description Sets or gets the language. Used in conjunction with the property messages.  */
	@Input()
	get locale(): string {
		return this.nativeElement ? this.nativeElement.locale : undefined;
	}
	set locale(value: string) {
		this.nativeElement ? this.nativeElement.locale = value : undefined;
	}

	/** @description Callback used to customize the format of the messages that are returned from the Localization Module. */
	@Input()
	get localizeFormatFunction(): any {
		return this.nativeElement ? this.nativeElement.localizeFormatFunction : undefined;
	}
	set localizeFormatFunction(value: any) {
		this.nativeElement ? this.nativeElement.localizeFormatFunction = value : undefined;
	}

	/** @description Determines the number of stars that will be displayed. */
	@Input()
	get max(): number {
		return this.nativeElement ? this.nativeElement.max : undefined;
	}
	set max(value: number) {
		this.nativeElement ? this.nativeElement.max = value : undefined;
	}

	/** @description Sets or gets an object specifying strings used in the element that can be localized. Used in conjunction with the property locale.  */
	@Input()
	get messages(): any {
		return this.nativeElement ? this.nativeElement.messages : undefined;
	}
	set messages(value: any) {
		this.nativeElement ? this.nativeElement.messages = value : undefined;
	}

	/** @description The name of the element. Used when submiting data inside a Form. */
	@Input()
	get name(): string {
		return this.nativeElement ? this.nativeElement.name : undefined;
	}
	set name(value: string) {
		this.nativeElement ? this.nativeElement.name = value : undefined;
	}

	/** @description Sets or gets the value indicating whether the element is aligned to support locales using right-to-left fonts. */
	@Input()
	get rightToLeft(): boolean {
		return this.nativeElement ? this.nativeElement.rightToLeft : undefined;
	}
	set rightToLeft(value: boolean) {
		this.nativeElement ? this.nativeElement.rightToLeft = value : undefined;
	}

	/** @description Determines the theme. Theme defines the look of the element */
	@Input()
	get theme(): string {
		return this.nativeElement ? this.nativeElement.theme : undefined;
	}
	set theme(value: string) {
		this.nativeElement ? this.nativeElement.theme = value : undefined;
	}

	/** @description If is set to true, the element cannot be focused. */
	@Input()
	get unfocusable(): boolean {
		return this.nativeElement ? this.nativeElement.unfocusable : undefined;
	}
	set unfocusable(value: boolean) {
		this.nativeElement ? this.nativeElement.unfocusable = value : undefined;
	}

	/** @description Determines the number of stars that will be marked as active. */
	@Input()
	get value(): number {
		return this.nativeElement ? this.nativeElement.value : undefined;
	}
	set value(value: number) {
		this.nativeElement ? this.nativeElement.value = value : undefined;
	}

	/** @description This event is triggered when the value of the slider is changed. 
	*  @param event. The custom event. 	Custom event was created with: event.detail(	value, 	oldValue)
	*   value - A numeric value indicating the scroll position.
	*   oldValue - A numeric value indicating the previous scroll position.
	*/
	@Output() onChange: EventEmitter<CustomEvent> = new EventEmitter();

	/** @description Get the value of the rating. 
	* @returns {number}
  */
	public async getValueAsync(): Promise<any> {
		const getResultOnRender = () => {
            return new Promise(resolve => {
                this.nativeElement.whenRendered(() => {
                    const result = this.nativeElement.getValue();
                    resolve(result)
                });
            });
        };
        const result = await getResultOnRender();

        return result;
    }

	public getValue(): number {
        if (this.nativeElement.isRendered) {
 	       return this.nativeElement.getValue();
        }
        return null;
    }

	/** @description Sets the value of the rating. 
	* @param {number} value. Sets the value of the rating
	*/
    public setValue(value: number): void {
        if (this.nativeElement.isRendered) {
            this.nativeElement.setValue(value);
        }
        else
        {
            this.nativeElement.whenRendered(() => {
                this.nativeElement.setValue(value);
            });
        }
    }


	get isRendered(): boolean {
		return this.nativeElement ? this.nativeElement.isRendered : false;
	}

	ngOnInit() {
	}

    ngAfterViewInit() {
      const that = this;

      that.onCreate.emit(that.nativeElement);

		if (Smart) Smart.Render();

		this.nativeElement.classList.add('smart-angular');

		if (this.nativeElement.whenRendered) this.nativeElement.whenRendered(() => { that.onReady.emit(that.nativeElement); });
		this.listen();
	}

	ngOnDestroy() {
		this.unlisten();
	}

	_initialChange = true; 

	get ngValue(): any {
		if (!this.nativeElement) {
			return null;
		}

		const value = this.nativeElement.value;
		return value;
	}

	set ngValue(value: any) {
		if (this.nativeElement) {
		    this.writeValue(value);
		}
	}

	writeValue(value: any): void {
        const that = this;
        const normalizedValue = value == null ? '' : value;

		that.nativeElement.whenRendered(() => {
			that.value = normalizedValue;
			if (that._initialChange === false) {
	    		that._onChange(that.value);
            }
		});
	}

	registerOnChange(fn: any): void {
		this._onChange = fn;
	}

	registerOnTouched(fn: any): void {
		this._onTouched = fn;
	}

	ngOnChanges(changes: SimpleChanges) {
		if (this.nativeElement && this.nativeElement.isRendered) {
			for (const propName in changes) {
				if (changes.hasOwnProperty(propName)) {
					this.nativeElement[propName] = changes[propName].currentValue;
				}
			}
		}
	}

	/** @description Add event listeners. */
	private listen(): void {
        const that = this;
		that.eventHandlers['changeHandler'] = (event: CustomEvent) => { that.onChange.emit(event); }
		that.nativeElement.addEventListener('change', that.eventHandlers['changeHandler']);


        that.eventHandlers['changeModelHandler'] = (event: Event) => {
            that._initialChange = false;
            that._onChange(that.nativeElement.value);
        };
        that.eventHandlers['blurModelHandler'] = (event: Event) => {
            that._onTouched();
        };
        that.nativeElement.whenRendered(() => {
            if (that.nativeElement.querySelector('input')) {
                that.eventHandlers['keyupModelHandler'] = (event) => {
                    setTimeout(() => { that.eventHandlers['changeModelHandler'](event); }, 50);
                };

                that.nativeElement.querySelector('input').addEventListener('keyup', that.eventHandlers['keyupModelHandler']);
            }
        });
		that.nativeElement.addEventListener('change', that.eventHandlers['changeModelHandler']);
		that.nativeElement.addEventListener('blur', that.eventHandlers['blurModelHandler']);
	}

	/** @description Remove event listeners. */
	private unlisten(): void {
        const that = this;
		if (that.eventHandlers['changeHandler']) {
			that.nativeElement.removeEventListener('change', that.eventHandlers['changeHandler']);
		}

		if (that.eventHandlers['changeModelHandler']) {
			that.nativeElement.removeEventListener('change', that.eventHandlers['changeModelHandler']);
            if (that.nativeElement.querySelector('input')) {
                  that.nativeElement.querySelector('input').removeEventListener('keyup', that.eventHandlers['keyupModelHandler']);
            }
		}
		if (that.eventHandlers['blurModelHandler']) {
			that.nativeElement.removeEventListener('blur', that.eventHandlers['blurModelHandler']);
		}
	}
}