From faf8afe9cdf86549eb22aa209f649a89a78c1085 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20B=C3=BCchele?= <danielbuechele@fb.com>
Date: Fri, 10 Aug 2018 09:29:28 -0700
Subject: [PATCH] Track plugin activation time

Summary: Track the time from when the plugin is selected until its `init()` function finishes.

Reviewed By: passy

Differential Revision: D9239750

fbshipit-source-id: 569f236c9d58f70548f1ba6bf31a96047dcc8245
---
 src/PluginContainer.js      | 1 +
 src/reducers/connections.js | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/PluginContainer.js b/src/PluginContainer.js
index 40e517d11..6595039a9 100644
--- a/src/PluginContainer.js
+++ b/src/PluginContainer.js
@@ -108,6 +108,7 @@ class PluginContainer extends Component<Props, State> {
     if (ref && target) {
       activateMenuItems(ref);
       ref._init();
+      this.props.logger.trackTimeSince(`activePlugin-${ref.id}`);
       this.plugin = ref;
     }
   };
diff --git a/src/reducers/connections.js b/src/reducers/connections.js
index 729d955a9..c8a49ee1c 100644
--- a/src/reducers/connections.js
+++ b/src/reducers/connections.js
@@ -156,12 +156,16 @@ export default function reducer(
     }
     case 'SELECT_PLUGIN': {
       const {payload} = action;
+      const {selectedPlugin} = payload;
+      if (selectedPlugin) {
+        performance.mark(`activePlugin-${selectedPlugin}`);
+      }
 
       return {
         ...state,
         ...payload,
         userPreferredApp: payload.selectedApp,
-        userPreferredPlugin: payload.selectedPlugin,
+        userPreferredPlugin: selectedPlugin,
       };
     }