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-rw-r--r--devtools/client/netmonitor/src/components/messages/ColumnLastEventId.js40
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diff --git a/devtools/client/netmonitor/src/components/messages/ColumnLastEventId.js b/devtools/client/netmonitor/src/components/messages/ColumnLastEventId.js
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+++ b/devtools/client/netmonitor/src/components/messages/ColumnLastEventId.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const {
+ Component,
+} = require("resource://devtools/client/shared/vendor/react.js");
+const dom = require("resource://devtools/client/shared/vendor/react-dom-factories.js");
+const PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
+
+/**
+ * Renders the "LastEventId" column of a message.
+ */
+class ColumnLastEventId extends Component {
+ static get propTypes() {
+ return {
+ item: PropTypes.object.isRequired,
+ };
+ }
+
+ shouldComponentUpdate(nextProps) {
+ return this.props.item.lastEventId !== nextProps.item.lastEventId;
+ }
+
+ render() {
+ const { lastEventId } = this.props.item;
+
+ return dom.td(
+ {
+ className: "message-list-column message-list-lastEventId",
+ title: lastEventId,
+ },
+ lastEventId
+ );
+ }
+}
+
+module.exports = ColumnLastEventId;