basic date separator support

skins/base/views/molecules/DateSeparator.js

@@ -0,0 +1,56 @@
+/*
+Copyright 2015 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+'use strict';
+
+var React = require('react');
+
+var days = [
+    "Sunday",
+    "Monday",
+    "Tuesday",
+    "Wednesday",
+    "Thursday",
+    "Friday",
+    "Saturday"
+];
+
+module.exports = React.createClass({
+    displayName: 'DateSeparator',
+    render: function() {
+        var date = new Date(this.props.ts);
+        var today = new Date();
+        var yesterday = new Date();
+        yesterday.setDate(today.getDate() - 1);
+        var label;
+        if (date.toDateString() === today.toDateString()) {
+            label = "Today";
+        }
+        else if (date.toDateString() === yesterday.toDateString()) {
+            label = "Yesterday";
+        }
+        else if (today.getTime() - date.getTime() < 6 * 24 * 60 * 60 * 1000) {
+            label = days[date.getDay()];
+        }
+        else {
+            label = date.toDateString();
+        }
+
+        return (
+            <h2>{ label }</h2>
+        );
+    }
+});