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Mastering TypeScript

Exploring DetailView and App Components

Explore how to implement the DetailView and App components in a React application using TypeScript. Learn to manage component state for showing and hiding dialogs, handle user interactions through callbacks, and render product details effectively. This lesson helps build practical skills in component communication and UI behavior control.

We'll cover the following...

We have discussed the CollectionView and ItemView components in detail, but there are still more important components of our application that we need to go through: the DetailView component and the App component.

Let’s start with the DetailView component.

The DetailView component

When a user clicks on one of our products, we would like a panel to slide in from the right of the screen with a detailed view of the product in question. This DetailView component in the DetailView.tsx file is as follows:

TypeScript 4.9.5
export interface IDetailsProps {
    open: boolean;
    product: IProduct | null;
    handleClose(): void;
}
const Transition = React.forwardRef(function Transition(
    props: TransitionProps & { children?: React.ReactElement },
    ref: React.Ref<unknown>,
) {
    return <Slide direction="left" ref={ref} {...props} />;
});
export class DetailView extends React.Component<IDetailsProps> {
    constructor(props: IDetailsProps) {
        super(props);
        this.handleClose = this.handleClose.bind(this);
    }
    render() {
        return (
            <div className="full-screen-details-dialogue">
                <Dialog
                    fullScreen
                    open={this.props.open}
                    TransitionComponent={Transition}>
                    <AppBar>
                        <Toolbar>
                            <IconButton
                                edge="start"
                                color="inherit"
                                onClick={this.handleClose}
                                aria-label="close">
                            <Close></Close>
                            </IconButton>
                        </Toolbar>
                    </AppBar>
                // Other screen elements, we aren't showing the complete code here.
                </Dialog>
            </div>
        )
    }
    handleClose() {
        console.log(`Details: handleClose()`)
        this.props.handleClose();
    }
}

In this component:

  • We start with an interface named IDetailsProps, which is on ...