mr-crocs-adventures/js/ui/LoadLevelDialog.js

import Dialog from "../../tilorswift/js/dialog/Dialog.js";

export class LoadLevelDialog extends Dialog
{
    constructor() {
        super();

        this.setMessage('Level laden');
        this.fileInput = this.createFileInput(['json']);
        this.fileInput.addEventListener(
            'change',
            () => {
                if (this.fileInput.files.length === 0) {
                    return;
                }

                const reader = new FileReader();
                reader.addEventListener(
                    'load',
                    (event) => {
                        this.onClose();
                        this.onLoad(event.target.result);
                    }
                )
                reader.readAsBinaryString(this.fileInput.files[0]);
            }
        )
        this.onClose = () => {};
        this.onLoad = () => {};

        this.buttonCancel = this.createButton('Abbrechen');
        this.buttonCancel.addEventListener(
            'click',
            () => {
                this.onClose();
            }
        );
    }

    openFileBrowser()
    {
        this.fileInput.click();
    }
}