@pnp/spfx-property-controls
Version:
Reusable property pane controls for SharePoint Framework solutions
80 lines • 4.19 kB
JavaScript
import * as React from 'react';
import { GeneralHelper } from '../../../../helpers/GeneralHelper';
import { PrimaryButton, DefaultButton, css } from '@fluentui/react';
import * as strings from 'PropertyControlStrings';
import styles from './UploadFilePickerTab.module.scss';
export default class UploadFilePickerTab extends React.Component {
constructor(props) {
super(props);
/**
* Gets called when a file is uploaded
*/
this._handleFileUpload = (event) => {
if (!event.target.files || event.target.files.length < 1) {
return;
}
// Get the files that were uploaded
const files = event.target.files;
// Grab the first file -- there should always only be one
const file = files[0];
const filePickerResult = {
fileAbsoluteUrl: null,
fileName: file.name,
fileNameWithoutExtension: GeneralHelper.getFileNameWithoutExtension(file.name),
downloadFileContent: () => { return Promise.resolve(file); }
};
if (GeneralHelper.isImage(file.name)) {
// Convert to base64 image
const reader = new FileReader();
reader.readAsDataURL(file);
reader.onload = () => {
this.setState({
filePreview: reader.result
});
};
}
this.setState({
filePickerResult,
filePreview: undefined
});
};
/**
* Saves base64 encoded image back to property pane file picker
*/
this._handleSave = () => {
this.props.onSave(this.state.filePickerResult);
};
/**
* Closes tab without saving
*/
this._handleClose = () => {
this.props.onClose();
};
this.state = {
filePickerResult: undefined
};
}
render() {
const { filePickerResult, filePreview } = this.state;
const fileName = filePickerResult ? filePickerResult.fileName : null;
const acceptedFilesExtensions = this.props.accepts ? this.props.accepts.join(",") : null;
return (React.createElement("div", { className: styles.tabContainer },
React.createElement("div", { className: styles.tabHeaderContainer },
React.createElement("h2", { className: styles.tabHeader }, strings.UploadFileHeader)),
React.createElement("div", { className: css(styles.tab, styles.tabOffset) },
React.createElement("input", { className: styles.localTabInput, type: "file", id: "fileInput", accept: acceptedFilesExtensions, multiple: false, onChange: (event) => this._handleFileUpload(event) }),
fileName && filePreview &&
/** Display image preview */
React.createElement("div", { className: styles.localTabSinglePreview },
React.createElement("img", { className: styles.localTabSinglePreviewImage, src: filePreview, alt: filePickerResult.fileName }),
React.createElement("span", null, fileName)),
React.createElement("div", null,
React.createElement("label", { className: styles.localTabFilename }, (!filePreview && fileName ? fileName : ""))),
React.createElement("label", { className: styles.localTabLabel, htmlFor: "fileInput" }, (fileName ? strings.ChangeFileLinkLabel : strings.ChooseFileLinkLabel))),
React.createElement("div", { className: styles.actionButtonsContainer },
React.createElement("div", { className: styles.actionButtons },
React.createElement(PrimaryButton, { disabled: !filePickerResult, onClick: () => this._handleSave(), className: styles.actionButton }, strings.AddFileButtonLabel),
React.createElement(DefaultButton, { onClick: () => this._handleClose(), className: styles.actionButton }, strings.CancelButtonLabel)))));
}
}
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