fix(RHCLOUD-51010): Show live notifications at the top of the drawer - #1060
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aferd merged 3 commits intoSep 9, 2026
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When the drawer opens it snapshots the current sort order so items do not jump around when they are marked read. The comparator sorted every item present in that snapshot before every item missing from it, so a notification arriving over the WebSocket while the drawer is open - which by definition is not in the snapshot - was sorted to the very bottom of the list. With a typical 50-entry drawer the new notification rendered off-screen and looked like it had been dropped. Items missing from the snapshot are now sorted first, newest created first among themselves, while snapshotted items keep their captured order below them. Also drop the duplicate WebSocket listener in DrawerPanel. DrawerSingleton already registers one on init, and unlike the panel's it is active from page load rather than only while the drawer is open, so the unread badge stays correct when the drawer is closed. DrawerSingleton.addNotification now ignores notifications whose id is already in state, so a redundant delivery cannot add a second row, and the listener registration is stored so a repeat initialize() call cannot stack listeners. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The existing DrawerPanel tests mock useNotificationDrawer, so they check the comparator but not the seam this fix actually changed: chrome delivers an event, DrawerSingleton's listener handles it, and the panel re-sorts. This renders the real panel with the real hook and real singleton, mocking only chrome's addWsEventListener so a test can play the part of the socket, and asserts a live notification lands at the top, that redelivery renders one row, and that a single listener is registered now the panel no longer adds its own. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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WalkthroughThe drawer singleton now owns live WebSocket notification delivery and suppresses duplicate IDs. The panel uses snapshot-aware sorting so new notifications appear first while existing notifications retain their order. Tests cover delivery, deduplication, unread state, and ordering. ChangesNotification drawer updates
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to Live notifications are now delivered through the drawer singleton, deduplicated by ID, and placed ahead of the drawer-open snapshot. No concrete merge-blocking risk remains. Sequence Diagram(s)sequenceDiagram
participant ChromeWebSocket
participant DrawerSingleton
participant DrawerPanel
ChromeWebSocket->>DrawerSingleton: Emit validated notification
DrawerSingleton->>DrawerSingleton: Suppress duplicate ID or add notification
DrawerSingleton->>DrawerPanel: Notify subscribers with updated data
DrawerPanel->>DrawerPanel: Sort live notifications before snapshot entries
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@src/components/NotificationsDrawer/DrawerSingleton.tsx`:
- Line 166: Update addNotification in DrawerSingleton so notificationData is
replaced with a new array containing the existing notifications and the new
notification, rather than mutated with push. Preserve the current notification
ordering and ensure state consumers observe a changed array reference for
filtered live notifications.
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src/components/NotificationsDrawer/DrawerPanel.tsxsrc/components/NotificationsDrawer/DrawerSingleton.tsxsrc/components/NotificationsDrawer/__tests__/DrawerLiveNotifications.test.tsxsrc/components/NotificationsDrawer/__tests__/DrawerPanel.test.tsxsrc/components/NotificationsDrawer/__tests__/DrawerSingleton.test.ts
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addNotification pushed onto notificationData in place, so the array kept the same reference across a live event. DrawerPanel memoizes filteredNotifications on that reference, which left the derived list stale: with a bundle filter active, a notification arriving over the websocket never appeared. Reassign a new array, matching what every sibling mutator already does. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Description
Notifications delivered over the WebSocket while the drawer is open appeared to never show up. They actually did render — they just sorted to the very bottom of the list, so with ~52 existing entries a live notification landed at row 53, well off-screen. This flips the inverted tiebreak in the drawer's sort comparator so live arrivals appear at the top, and removes a duplicate WebSocket listener found along the way.
Impacted UI: the notifications drawer (bell icon), console-wide.
Steps to reproduce: open the drawer in an org that already has entries, leave it open, and have a notification delivered over the WebSocket — it appends to the bottom instead of the top. An empty drawer will not reproduce it, since the snapshot effect is gated on
state.notificationData.length > 0.RHCLOUD-51010
Root cause
DrawerPanel.tsxsnapshots the sort order when the drawer opens so rows don't jump around as entries are marked read. Anything absent from that snapshot is by definition a notification that arrived after the drawer opened, but the comparator's tiebreak was inverted:Changes
DrawerPanel.tsx— flipped the comparator so out-of-snapshot items sort first, and added acreated descbranch so multiple live arrivals order newest-first among themselves. Extracted asnapshotPositionsMap to drop the O(n)indexOfper comparison.DrawerPanel.tsx— removed the panel's duplicate WS listener. Two were registered forcom.redhat.console.notifications.drawer, one here and one inDrawerSingleton. Chrome keys its listener registry bysymbol, so both fired and both calledaddNotification, appending the same notification twice. The singleton's is strictly better: it's live from page load, not just while the panel is mounted.DrawerSingleton.tsx— added an id-based dedupe guard inaddNotificationso a redelivered event can't double-render, and fixed_subsbeing initialised inside theInstancegetter (which threwCannot read properties of undefined (reading 'push')once the getter stopped resetting it).DrawerLiveNotifications.test.tsxrenders the real panel, hook and singleton together, mocking only chrome'saddWsEventListenerso a test can play the socket. Covers: exactly one listener registered, live arrival at the top, newest-first ordering, redelivery renders once, unread flag set. Plus 4 dedupe tests in a newDrawerSingleton.test.tsand 3 ordering tests inDrawerPanel.test.tsx.Reverting the one-line comparator fix fails 6 tests across 2 suites, so the coverage actually pins the behaviour.
Considered and ruled out
isNotificationDatamissingread/bundle— the guard doesn't require those fields, so events pass validation fine.Screenshots
Before:
Live notification sorts to row 53 of 53, below every pre-existing entry.
After:
Injected notifications render at the top of the drawer, above entries from 14 hours ago. Verified by hand in local dev against a populated drawer.
Checklist ☑️
build,lint(0 errors),tsc --noEmit, andjest(43 suites / 344 tests) all pass. E2E not run locally.🤖 Generated with Claude Code