Investigate Live Activity Session Load

Nucleic-Session: 044A9B93-AB31-4B6B-9A27-3631261269B1 Co-authored-by: Nucleic <[email protected]>
2026-07-06 17:31:50 -07:00
parent a78402e4e4
commit e6fcaf5269
1 changed files with 12 additions and 6 deletions
@@ -34,18 +34,24 @@ struct SessionDetailView: View {
        TranscriptList(events: store.openEvents,
                       scrollToBottomRequest: scrollToBottomRequest,
                       isScrolledToBottom: $isScrolledToBottom)
-            // Measure the transcript's full height (the floating bar overlays it via safeAreaInset,
-            // so this frame is the whole screen area the card has to live within) and hand it to the
-            // action card so it can bound itself.
+            // The chat bar floats over the scrolling content on Liquid Glass instead of sitting
+            // in a boxed strip below it, so the transcript runs the full height of the screen.
+            .safeAreaInset(edge: .bottom) { actionArea }
+            // Measure the whole detail's height — the screen area the action card must fit within —
+            // and hand it to the card so it can cap itself and keep Allow/Deny (or Submit) on-screen.
+            // Measured *after* the safeAreaInset on purpose: this must be the fixed container height,
+            // not the transcript's inset-reduced height. The attention cards (approval / question)
+            // size themselves off `availableHeight` via `.frame(maxHeight:)`, so measuring it from the
+            // inset-reduced region fed the card's own height back into the value it was sized from — a
+            // layout cycle SwiftUI never resolved, pinning the main thread at 100% CPU during the push
+            // transition. It bit only the attention path (a card consumes this value; the plain
+            // composer doesn't), which is why a "Working" tap opened fine and an "attention" tap hung.
            .background {
                GeometryReader { proxy in
                    Color.clear.preference(key: AvailableHeightKey.self, value: proxy.size.height)
                }
            }
            .onPreferenceChange(AvailableHeightKey.self) { availableHeight = $0 }
-            // The chat bar floats over the scrolling content on Liquid Glass instead of sitting
-            // in a boxed strip below it, so the transcript runs the full height of the screen.
-            .safeAreaInset(edge: .bottom) { actionArea }
            .navigationTitle(summary?.title ?? "Session")
            .navigationBarTitleDisplayMode(.inline)
            // With a session open the floating chat bar owns the bottom edge, so the compact