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import React from 'react';
import Dropzone from 'react-dropzone';
import PropTypes from 'prop-types';
import classNames from 'classnames';
import { withStyles } from '@material-ui/core/styles';
import Button from '@material-ui/core/Button';
import FileIcon from '@material-ui/icons/Description';
import ActionDelete from '@material-ui/icons/Delete';
import IconButton from '@material-ui/core/IconButton';
import Snackbar from '@material-ui/core/Snackbar';
import CloudUpload from '@material-ui/icons/CloudUpload';
import { lighten } from '@material-ui/core/styles/colorManipulator';
import 'ba-styles/vendors/react-dropzone/react-dropzone.css';
import isImage from './helpers/helpers.js';
const styles = theme => ({
dropItem: {
borderColor: theme.palette.secondary.main,
background: lighten(theme.palette.secondary.light, 0.9),
borderRadius: 2
},
uploadIconSize: {
width: 51,
height: 51,
color: theme.palette.secondary.main,
margin: '0 auto'
},
rightIcon: {
marginLeft: theme.spacing(1),
},
button: {
marginTop: 20
}
});
class MaterialDropZone extends React.Component {
constructor(props) {
super(props);
this.state = {
openSnackBar: false,
errorMessage: '',
files: this.props.files, // eslint-disable-line
acceptedFiles: this.props.acceptedFiles // eslint-disable-line
};
this.onDrop = this.onDrop.bind(this);
}
onDrop(filesVal) {
const { files } = this.state;
const { filesLimit } = this.props;
let oldFiles = files;
const filesLimitVal = filesLimit || '3';
oldFiles = oldFiles.concat(filesVal);
if (oldFiles.length > filesLimit) {
this.setState({
openSnackBar: true,
errorMessage: 'Cannot upload more than ' + filesLimitVal + ' items.',
});
} else {
this.setState({ files: oldFiles });
}
}
onDropRejected() {
this.setState({
openSnackBar: true,
errorMessage: 'File too big, max size is 3MB',
});
}
handleRequestCloseSnackBar = () => {
this.setState({
openSnackBar: false,
});
};
handleRemove(file, fileIndex) {
const thisFiles = this.state.files; // eslint-disable-line
// This is to prevent memory leaks.
window.URL.revokeObjectURL(file.preview);
thisFiles.splice(fileIndex, 1);
this.setState({ files: thisFiles });
}
render() {
const {
classes,
showPreviews,
maxSize,
text,
showButton,
filesLimit,
...rest
} = this.props;
const {
acceptedFiles,
files,
openSnackBar,
errorMessage
} = this.state;
const fileSizeLimit = maxSize || 3000000;
const deleteBtn = (file, index) => (
<div className="middle">
<IconButton onClick={() => this.handleRemove(file, index)}>
<ActionDelete className="removeBtn" />
</IconButton>
</div>
);
const previews = filesArray => filesArray.map((file, index) => {
const base64Img = URL.createObjectURL(file);
if (isImage(file)) {
return (
<div key={index.toString()}>
<div className="imageContainer col fileIconImg">
<figure className="imgWrap"><img className="smallPreviewImg" src={base64Img} alt="preview" /></figure>
{deleteBtn(file, index)}
</div>
</div>
);
}
return (
<div key={index.toString()}>
<div className="imageContainer col fileIconImg">
<FileIcon className="smallPreviewImg" alt="preview" />
{deleteBtn(file, index)}
</div>
</div>
);
});
let dropzoneRef;
return (
<div>
<Dropzone
accept={acceptedFiles.join(',')}
onDrop={this.onDrop}
onDropRejected={this.onDropRejected}
acceptClassName="stripes"
rejectClassName="rejectStripes"
maxSize={fileSizeLimit}
ref={(node) => { dropzoneRef = node; }}
{...rest}
>
{({ getRootProps, getInputProps }) => (
<div {...getRootProps()} className={classNames(classes.dropItem, 'dropZone')}>
<div className="dropzoneTextStyle">
<input {...getInputProps()} />
<p className="dropzoneParagraph">{text}</p>
<div className={classes.uploadIconSize}>
<CloudUpload className={classes.uploadIconSize} />
</div>
</div>
</div>
)}
{/* end */}
</Dropzone>
{showButton && (
<Button
className={classes.button}
fullWidth
variant="contained"
onClick={() => {
dropzoneRef.open();
}}
color="secondary"
>
Click to upload file(s)
</Button>
)}
<div className="row preview">
{showPreviews && previews(files)}
</div>
<Snackbar
open={openSnackBar}
message={errorMessage}
autoHideDuration={4000}
onClose={this.handleRequestCloseSnackBar}
/>
</div>
);
}
}
MaterialDropZone.propTypes = {
files: PropTypes.array.isRequired,
text: PropTypes.string.isRequired,
acceptedFiles: PropTypes.array,
showPreviews: PropTypes.bool.isRequired,
showButton: PropTypes.bool,
maxSize: PropTypes.number.isRequired,
filesLimit: PropTypes.number.isRequired,
classes: PropTypes.object.isRequired,
};
MaterialDropZone.defaultProps = {
acceptedFiles: [],
showButton: false,
};
export default withStyles(styles)(MaterialDropZone);
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