1 files changed, 12 insertions, 0 deletions
diff --git a/app/assets/javascripts/diffs/constants.js b/app/assets/javascripts/diffs/constants.js
index dc97d9993da..79f8c08e389 100644
--- a/app/assets/javascripts/diffs/constants.js
+++ b/app/assets/javascripts/diffs/constants.js
@@ -73,6 +73,10 @@ export const ALERT_OVERFLOW_HIDDEN = 'overflow';
 export const ALERT_MERGE_CONFLICT = 'merge-conflict';
 export const ALERT_COLLAPSED_FILES = 'collapsed';
 
+// Diff File collapse types
+export const DIFF_FILE_AUTOMATIC_COLLAPSE = 'automatic';
+export const DIFF_FILE_MANUAL_COLLAPSE = 'manual';
+
 // State machine states
 export const STATE_IDLING = 'idle';
 export const STATE_LOADING = 'loading';
@@ -91,3 +95,11 @@ export const RENAMED_DIFF_TRANSITIONS = {
   [`${STATE_ERRORED}:${TRANSITION_LOAD_START}`]: STATE_LOADING,
   [`${STATE_ERRORED}:${TRANSITION_ACKNOWLEDGE_ERROR}`]: STATE_IDLING,
 };
+
+// MR Diffs known events
+export const EVT_EXPAND_ALL_FILES = 'mr:diffs:expandAllFiles';
+export const EVT_PERF_MARK_FILE_TREE_START = 'mr:diffs:perf:fileTreeStart';
+export const EVT_PERF_MARK_FILE_TREE_END = 'mr:diffs:perf:fileTreeEnd';
+export const EVT_PERF_MARK_DIFF_FILES_START = 'mr:diffs:perf:filesStart';
+export const EVT_PERF_MARK_FIRST_DIFF_FILE_SHOWN = 'mr:diffs:perf:firstFileShown';
+export const EVT_PERF_MARK_DIFF_FILES_END = 'mr:diffs:perf:filesEnd';