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Diffstat (limited to 'webapp/components/file_attachment.jsx')
-rw-r--r-- | webapp/components/file_attachment.jsx | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/webapp/components/file_attachment.jsx b/webapp/components/file_attachment.jsx new file mode 100644 index 000000000..6253e17e1 --- /dev/null +++ b/webapp/components/file_attachment.jsx @@ -0,0 +1,228 @@ +// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved. +// See License.txt for license information. + +import $ from 'jquery'; +import ReactDOM from 'react-dom'; +import * as utils from 'utils/utils.jsx'; +import * as Client from 'utils/client.jsx'; +import Constants from 'utils/constants.jsx'; + +import {intlShape, injectIntl, defineMessages} from 'react-intl'; + +const holders = defineMessages({ + download: { + id: 'file_attachment.download', + defaultMessage: 'Download' + } +}); + +import React from 'react'; + +class FileAttachment extends React.Component { + constructor(props) { + super(props); + + this.loadFiles = this.loadFiles.bind(this); + this.addBackgroundImage = this.addBackgroundImage.bind(this); + + this.canSetState = false; + this.state = {fileSize: -1}; + } + componentDidMount() { + this.loadFiles(); + } + componentDidUpdate(prevProps) { + if (this.props.filename !== prevProps.filename) { + this.loadFiles(); + } + } + loadFiles() { + this.canSetState = true; + + var filename = this.props.filename; + + if (filename) { + var fileInfo = this.getFileInfoFromName(filename); + var type = utils.getFileType(fileInfo.ext); + + if (type === 'image') { + var self = this; // Need this reference since we use the given "this" + $('<img/>').attr('src', fileInfo.path + '_thumb.jpg').load(function loadWrapper(path, name) { + return function loader() { + $(this).remove(); + if (name in self.refs) { + var imgDiv = ReactDOM.findDOMNode(self.refs[name]); + + $(imgDiv).removeClass('post-image__load'); + $(imgDiv).addClass('post-image'); + + var width = this.width || $(this).width(); + var height = this.height || $(this).height(); + + if (width < Constants.THUMBNAIL_WIDTH && + height < Constants.THUMBNAIL_HEIGHT) { + $(imgDiv).addClass('small'); + } else { + $(imgDiv).addClass('normal'); + } + + self.addBackgroundImage(name, path); + } + }; + }(fileInfo.path, filename)); + } + } + } + componentWillUnmount() { + // keep track of when this component is mounted so that we can asynchronously change state without worrying about whether or not we're mounted + this.canSetState = false; + } + shouldComponentUpdate(nextProps, nextState) { + if (!utils.areObjectsEqual(nextProps, this.props)) { + return true; + } + + // the only time this object should update is when it receives an updated file size which we can usually handle without re-rendering + if (nextState.fileSize !== this.state.fileSize) { + if (this.refs.fileSize) { + // update the UI element to display the file size without re-rendering the whole component + ReactDOM.findDOMNode(this.refs.fileSize).innerHTML = utils.fileSizeToString(nextState.fileSize); + + return false; + } + + // we can't find the element that should hold the file size so we must not have rendered yet + return true; + } + + return true; + } + getFileInfoFromName(name) { + var fileInfo = utils.splitFileLocation(name); + + fileInfo.path = utils.getWindowLocationOrigin() + '/api/v1/files/get' + fileInfo.path; + + return fileInfo; + } + addBackgroundImage(name, path) { + var fileUrl = path; + + if (name in this.refs) { + if (!path) { + fileUrl = this.getFileInfoFromName(name).path; + } + + var imgDiv = ReactDOM.findDOMNode(this.refs[name]); + var re1 = new RegExp(' ', 'g'); + var re2 = new RegExp('\\(', 'g'); + var re3 = new RegExp('\\)', 'g'); + var url = fileUrl.replace(re1, '%20').replace(re2, '%28').replace(re3, '%29'); + + $(imgDiv).css('background-image', 'url(' + url + '_thumb.jpg)'); + } + } + removeBackgroundImage(name) { + if (name in this.refs) { + $(ReactDOM.findDOMNode(this.refs[name])).css('background-image', 'initial'); + } + } + render() { + var filename = this.props.filename; + + var fileInfo = utils.splitFileLocation(filename); + var fileUrl = utils.getFileUrl(filename, true); + var type = utils.getFileType(fileInfo.ext); + + var thumbnail; + if (type === 'image') { + thumbnail = ( + <div + ref={filename} + className='post-image__load' + /> + ); + } else { + thumbnail = <div className={'file-icon ' + utils.getIconClassName(type)}/>; + } + + var fileSizeString = ''; + if (this.state.fileSize < 0) { + Client.getFileInfo( + filename, + function success(data) { + if (this.canSetState) { + this.setState({fileSize: parseInt(data.size, 10)}); + } + }.bind(this), + function error() { + // Do nothing + } + ); + } else { + fileSizeString = utils.fileSizeToString(this.state.fileSize); + } + + var filenameString = decodeURIComponent(utils.getFileName(filename)); + var trimmedFilename; + if (filenameString.length > 35) { + trimmedFilename = filenameString.substring(0, Math.min(35, filenameString.length)) + '...'; + } else { + trimmedFilename = filenameString; + } + + return ( + <div + className='post-image__column' + key={filename} + > + <a className='post-image__thumbnail' + href='#' + onClick={() => this.props.handleImageClick(this.props.index)} + > + {thumbnail} + </a> + <div className='post-image__details'> + <a + href={fileUrl} + download={filenameString} + data-toggle='tooltip' + title={this.props.intl.formatMessage(holders.download) + ' \"' + filenameString + '\"'} + className='post-image__name' + target='_blank' + > + {trimmedFilename} + </a> + <div> + <a + href={fileUrl} + download={filenameString} + className='post-image__download' + target='_blank' + > + <span + className='fa fa-download' + /> + </a> + <span className='post-image__type'>{fileInfo.ext.toUpperCase()}</span> + <span className='post-image__size'>{fileSizeString}</span> + </div> + </div> + </div> + ); + } +} + +FileAttachment.propTypes = { + intl: intlShape.isRequired, + + // a list of file pathes displayed by the parent FileAttachmentList + filename: React.PropTypes.string.isRequired, + + // the index of this attachment preview in the parent FileAttachmentList + index: React.PropTypes.number.isRequired, + + // handler for when the thumbnail is clicked passed the index above + handleImageClick: React.PropTypes.func +}; + +export default injectIntl(FileAttachment); |