React change state next component - reactjs

Question

I must create upload files unique component for input type file, for it i use react-dropzone library with drag and drop and use this component 4 time in page. Initial Initially, besides the first component, other components must be disabled, but after loading the file, the next component must change state to disable = {true}.How do I properly implement the logic using useState?
sandbox
UploadFile.js
const UploadFile = ({ visible }) => {
const [active, setActive] = useState(false);
useEffect(() => {
if (!visible) {
setActive(true);
}
}, [visible]);
console.log(visible);
const { getRootProps, getInputProps, open, acceptedFiles } = useDropzone({
noClick: true,
noKeyboard: true,
disabled: active
});
const files = acceptedFiles.map((file) => (
<li key={file.path}>
{file.path} - {file.size} bytes
</li>
));
return (
<>
<div className="file-input">
<div {...getRootProps({ className: "dropzone" })}>
<input {...getInputProps()} />
<p>Drag drop some files here</p>
<button type="button" onClick={open} disabled={active}>
Open File Dialog
</button>
</div>
<aside>
<h4>Files</h4>
<ul>{files}</ul>
</aside>
</div>
</>
);
};
App.js
export default function App() {
return (
<div className="App">
<div className="upload-file">
<h4>Please select file</h4>
<div>
<p>Images</p>
<UploadFile visible />
<UploadFile visible={false} />
</div>
<div>
<p>Documents</p>
<UploadFile visible={false} />
<UploadFile visible={false} />
</div>
<br />
<button type="submit" disabled={true}>
SEND
</button>
</div>
</div>
);
}

Answer 1

you can use only one state currentStep as reference at your parent.
import React, { useCallback, useState } from "react";
import UploadFile from "./UploadFile";
import "./styles.css";
export default function App() {
const [currentStep, setCurrentStep] = useState(1)
const nextStep = useCallback(() => {setCurrentStep(crr => crr + 1)}, [])
return (
<div className="App">
<div className="upload-file">
<h4>Please select file</h4>
<div>
<p>Images</p>
<UploadFile nextStep={nextStep} currentStep={currentStep} step={1} />
<UploadFile nextStep={nextStep} currentStep={currentStep} step={2} />
</div>
<div>
<p>Documents</p>
<UploadFile nextStep={nextStep} currentStep={currentStep} step={3} />
<UploadFile nextStep={nextStep} currentStep={currentStep} step={4} />
</div>
<br />
<button type="submit" disabled={true}>
SEND
</button>
</div>
</div>
);
}
at Upload File you don't need setState, only compare step with currentStep to check if is enabled. you also need to check step === currentStep once drop is accepted, otherwise if you make multilple changes to the same field, would keep opening other fields.
import React from "react";
import { useDropzone } from "react-dropzone";
const UploadFile = ({ nextStep, step, currentStep }) => {
const onDropAccepted = () => {
if(step === currentStep) nextStep()
}
const { getRootProps, getInputProps, open, acceptedFiles } = useDropzone({
noClick: true,
noKeyboard: true,
disabled: step > currentStep,
onDropAccepted
});
const files = acceptedFiles.map((file) => (
<li key={file.path}>
{file.path} - {file.size} bytes
</li>
));
return (
<>
<div className="file-input">
<div {...getRootProps({ className: "dropzone" })}>
<input {...getInputProps()} />
<p>Drag drop some files here</p>
<button type="button" onClick={open} disabled={step > currentStep}>
Open File Dialog
</button>
</div>
<aside>
<h4>Files</h4>
<ul>{files}</ul>
</aside>
</div>
</>
);
};
export default UploadFile;

Answer 2

you can use react context to create the relationship between each component, and after the first file drop , you can go to the next index of upload component
UploadFile.js
import React, { useEffect, useState, useContext } from "react";
import { useDropzone } from "react-dropzone";
import { DragContext } from "./App";
const UploadFile = ({ index = 0 }) => {
const { currentIndex, setCurrentIndex } = useContext(DragContext); // use context
const [active, setActive] = useState(false);
useEffect(() => {
if (index !== currentIndex) { // compare to active
setActive(true);
} else {
setActive(false);
}
}, [currentIndex, index]);
console.log(active);
const { getRootProps, getInputProps, open, acceptedFiles } = useDropzone({
noClick: true,
noKeyboard: true,
disabled: active,
onDropAccepted: () => {
setCurrentIndex(currentIndex + 1);
}
});
const files = acceptedFiles.map((file) => (
<li key={file.path}>
{file.path} - {file.size} bytes
</li>
));
return (
<>
<div className="file-input">
<div {...getRootProps({ className: "dropzone" })}>
<input {...getInputProps()} />
<p>Drag drop some files here</p>
<button type="button" onClick={open} disabled={active}>
Open File Dialog
</button>
</div>
<aside>
<h4>Files</h4>
<ul>{files}</ul>
</aside>
</div>
</>
);
};
export default UploadFile;
App.js
import React, { createContext, useState } from "react";
import UploadFile from "./UploadFile";
import "./styles.css";
export const DragContext = createContext({});
export default function App() {
const [currentIndex, setCurrentIndex] = useState(0); // compare with index
return (
<div className="App">
<DragContext.Provider value={{ currentIndex, setCurrentIndex }}>
<div className="upload-file">
<h4>Please select file</h4>
<div>
<p>Images</p>
<UploadFile index={0} />
<UploadFile index={1} />
</div>
<div>
<p>Documents</p>
<UploadFile index={2} />
<UploadFile index={3} />
</div>
<br />
<button type="submit" disabled={true}>
SEND
</button>
</div>
</DragContext.Provider>
</div>
);
}