1 files changed, 61 insertions, 0 deletions
diff --git a/devtools/client/performance-new/components/panel/ToolboxHighlightController.js b/devtools/client/performance-new/components/panel/ToolboxHighlightController.js
new file mode 100644
index 0000000000..9d9d594aa0
--- /dev/null
+++ b/devtools/client/performance-new/components/panel/ToolboxHighlightController.js
@@ -0,0 +1,61 @@
+/* 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/. */
+// @ts-check
+
+/**
+ * @typedef {Object} StateProps
+ * @property {RecordingState} recordingState
+ */
+
+/**
+ * @typedef {Object} OwnProps
+ * @property {any} toolbox
+ */
+
+/**
+ * @typedef {StateProps & OwnProps} Props
+ * @typedef {import("../../@types/perf").State} StoreState
+ * @typedef {import("../../@types/perf").RecordingState} RecordingState
+ */
+
+"use strict";
+
+const {
+  PureComponent,
+} = require("resource://devtools/client/shared/vendor/react.js");
+const {
+  connect,
+} = require("resource://devtools/client/shared/vendor/react-redux.js");
+const selectors = require("resource://devtools/client/performance-new/store/selectors.js");
+
+/**
+ * @extends {React.PureComponent<Props>}
+ */
+class ToolboxHighlightController extends PureComponent {
+  /** @param {Props} prevProps */
+  componentDidUpdate(prevProps) {
+    const { recordingState, toolbox } = this.props;
+    if (recordingState === "recording") {
+      toolbox.highlightTool("performance");
+    } else if (prevProps.recordingState === "recording") {
+      toolbox.unhighlightTool("performance");
+    }
+  }
+
+  render() {
+    return null;
+  }
+}
+
+/**
+ * @param {StoreState} state
+ * @returns {StateProps}
+ */
+function mapStateToProps(state) {
+  return {
+    recordingState: selectors.getRecordingState(state),
+  };
+}
+
+module.exports = connect(mapStateToProps)(ToolboxHighlightController);