Method changeDataSource

docs/app/js/sanddance-app.js:51753–51779

(dataSource)

        };
    }
    changeDataSource(dataSource) {
        this.setState({
            working: true
        });
        return new Promise((resolve, reject)=>{
            const uploadFormatError = "";
            const urlError = "";
            this.setState({
                uploadFormatError,
                urlError
            });
            this.props.changeDataSource(dataSource).then(()=>{
                this.setState({
                    working: false,
                    uploadFormatError: "",
                    urlError: "",
                    dialogMode: null
                });
                resolve();
            }).catch((reason)=>{
                this.setState({
                    working: false
                });
                reject(reason);
            });
        });
    }
    upload(e) {
        if (e.target.files) {
            const file = e.target.files[0];