1 files changed, 60 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/src/components/messages/ColumnData.js b/devtools/client/netmonitor/src/components/messages/ColumnData.js
new file mode 100644
index 0000000000..2c4b7c1b60
--- /dev/null
+++ b/devtools/client/netmonitor/src/components/messages/ColumnData.js
@@ -0,0 +1,60 @@
+/* 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");
+const {
+  L10N,
+} = require("resource://devtools/client/netmonitor/src/utils/l10n.js");
+const {
+  limitTooltipLength,
+} = require("resource://devtools/client/netmonitor/src/utils/tooltips.js");
+
+/**
+ * Renders the "Data" column of a message.
+ */
+class ColumnData extends Component {
+  static get propTypes() {
+    return {
+      item: PropTypes.object.isRequired,
+      connector: PropTypes.object.isRequired,
+    };
+  }
+
+  render() {
+    const { type, payload } = this.props.item;
+    // type could be undefined for sse channel.
+    const typeLabel = type ? L10N.getStr(`netmonitor.ws.type.${type}`) : null;
+
+    // If payload is a LongStringActor object, we show the first 1000 characters
+    const displayedPayload = payload.initial ? payload.initial : payload;
+
+    const frameTypeImg = type
+      ? dom.img({
+          alt: typeLabel,
+          className: `message-list-type-icon message-list-type-icon-${type}`,
+          src: `chrome://devtools/content/netmonitor/src/assets/icons/arrow-up.svg`,
+        })
+      : null;
+
+    let title = limitTooltipLength(displayedPayload);
+    title = type ? typeLabel + " " + title : title;
+
+    return dom.td(
+      {
+        className: "message-list-column message-list-payload",
+        title,
+      },
+      frameTypeImg,
+      " " + displayedPayload
+    );
+  }
+}
+
+module.exports = ColumnData;