1 files changed, 132 insertions, 0 deletions
diff --git a/web/react/components/file_attachment.jsx b/web/react/components/file_attachment.jsx
new file mode 100644
index 000000000..b7ea5734f
--- /dev/null
+++ b/web/react/components/file_attachment.jsx
@@ -0,0 +1,132 @@
+// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+var utils = require('../utils/utils.jsx');
+var Constants = require('../utils/constants.jsx');
+
+module.exports = React.createClass({
+    displayName: "FileAttachment",
+    canSetState: false,
+    propTypes: {
+        // a list of file pathes displayed by the parent FileAttachmentList
+        filenames: React.PropTypes.arrayOf(React.PropTypes.string).isRequired,
+        // the index of this attachment preview in the parent FileAttachmentList
+        index: React.PropTypes.number.isRequired,
+        // the identifier of the modal dialog used to preview files
+        modalId: React.PropTypes.string.isRequired,
+        // handler for when the thumbnail is clicked
+        handleImageClick: React.PropTypes.func
+    },
+    getInitialState: function() {
+        return {fileSize: -1};
+    },
+    componentDidMount: function() {
+        this.canSetState = true;
+
+        var filename = this.props.filenames[this.props.index];
+
+        if (filename) {
+            var fileInfo = utils.splitFileLocation(filename);
+            var type = utils.getFileType(fileInfo.ext);
+
+            // This is a temporary patch to fix issue with old files using absolute paths
+            if (fileInfo.path.indexOf("/api/v1/files/get") != -1) {
+                fileInfo.path = fileInfo.path.split("/api/v1/files/get")[1];
+            }
+            fileInfo.path = utils.getWindowLocationOrigin() + "/api/v1/files/get" + fileInfo.path;
+
+            if (type === "image") {
+                var self = this;
+                $('<img/>').attr('src', fileInfo.path+'_thumb.jpg').load(function(path, name){ return function() {
+                    $(this).remove();
+                    if (name in self.refs) {
+                        var imgDiv = self.refs[name].getDOMNode();
+
+                        $(imgDiv).removeClass('post__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');
+                        }
+
+                        var re1 = new RegExp(' ', 'g');
+                        var re2 = new RegExp('\\(', 'g');
+                        var re3 = new RegExp('\\)', 'g');
+                        var url = path.replace(re1, '%20').replace(re2, '%28').replace(re3, '%29');
+                        $(imgDiv).css('background-image', 'url('+url+'_thumb.jpg)');
+                    }
+                }}(fileInfo.path, filename));
+            }
+        }
+    },
+    componentWillUnmount: function() {
+        // 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: function(nextProps, nextState) {
+        // 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
+                this.refs.fileSize.getDOMNode().innerHTML = utils.fileSizeToString(nextState.fileSize);
+
+                return false;
+            } else {
+                // we can't find the element that should hold the file size so we must not have rendered yet
+                return true;
+            }
+        } else {
+            return true;
+        }
+    },
+    render: function() {
+        var filenames = this.props.filenames;
+        var filename = filenames[this.props.index];
+
+        var fileInfo = utils.splitFileLocation(filename);
+        var type = utils.getFileType(fileInfo.ext);
+
+        var thumbnail;
+        if (type === "image") {
+            thumbnail = <div ref={filename} className="post__load" style={{backgroundImage: 'url(/static/images/load.gif)'}}/>;
+        } else {
+            thumbnail = <div className={"file-icon "+utils.getIconClassName(type)}/>;
+        }
+
+        var fileSizeString = "";
+        if (this.state.fileSize < 0) {
+            var self = this;
+
+            // asynchronously request the size of the file so that we can display it next to the thumbnail
+            utils.getFileSize(utils.getFileUrl(filename), function(fileSize) {
+                if (self.canSetState) {
+                    self.setState({fileSize: fileSize});
+                }
+            });
+        } else {
+            fileSizeString = utils.fileSizeToString(this.state.fileSize);
+        }
+
+        return (
+            <div className="post-image__column" key={filename}>
+                <a className="post-image__thumbnail" href="#" onClick={this.props.handleImageClick}
+                    data-img-id={this.props.index} data-toggle="modal" data-target={"#" + this.props.modalId }>
+                    {thumbnail}
+                </a>
+                <div className="post-image__details">
+                    <div className="post-image__name">{decodeURIComponent(utils.getFileName(filename))}</div>
+                    <div>
+                        <span className="post-image__type">{fileInfo.ext.toUpperCase()}</span>
+                        <span className="post-image__size">{fileSizeString}</span>
+                    </div>
+                </div>
+            </div>
+        );
+    }
+});