https://github.com/melamriD365/CanvasApps-Controls/blob/main/ValueTurner/index.ts

index.ts

import { IInputs, IOutputs } from "./generated/ManifestTypes";

export class ValueTurner implements ComponentFramework.StandardControl<IInputs, IOutputs> {

	private context_: ComponentFramework.Context<IInputs>
	constructor() {

	}

	/**
	 * Used to initialize the control instance. Controls can kick off remote server calls and other initialization actions here.
	 * Data-set values are not initialized here, use updateView.
	 * @param context The entire property bag available to control via Context Object; It contains values as set up by the customizer mapped to property names defined in the manifest, as well as utility functions.
	 * @param notifyOutputChanged A callback method to alert the framework that the control has new outputs ready to be retrieved asynchronously.
	 * @param state A piece of data that persists in one session for a single user. Can be set at any point in a controls life cycle by calling 'setControlState' in the Mode interface.
	 * @param container If a control is marked control-type='standard', it will receive an empty div element within which it can render its content.
	 */
	public init(context: ComponentFramework.Context<IInputs>, notifyOutputChanged: () => void, state: ComponentFramework.Dictionary, container: HTMLDivElement): void {
		this.context_ = context;
		sessionStorage.removeItem(this.context_.parameters.sessionStorageKey.raw!);
	}


	/**
	 * Called when any value in the property bag has changed. This includes field values, data-sets, global values such as container height and width, offline status, control metadata values such as label, visible, etc.
	 * @param context The entire property bag available to control via Context Object; It contains values as set up by the customizer mapped to names defined in the manifest, as well as utility functions
	 */
	public updateView(context: ComponentFramework.Context<IInputs>): void {
		let props = this.context_.parameters.data.raw;
		if (props.result == true) {
			sessionStorage.setItem(this.context_.parameters.sessionStorageKey.raw!, JSON.stringify(props));
		}
	}

	/**
	 * It is called by the framework prior to a control receiving new data.
	 * @returns an object based on nomenclature defined in manifest, expecting object[s] for property marked as “bound” or “output”
	 */
	public getOutputs(): IOutputs {
		return {};
	}

	/**
	 * Called when the control is to be removed from the DOM tree. Controls should use this call for cleanup.
	 * i.e. cancelling any pending remote calls, removing listeners, etc.
	 */
	public destroy(): void {
		
	}
}