feat(chat/ios): photos-picker-style attachment thumbnails with persistent add-more tile#73711
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Greptile SummaryThis PR refactors the iOS chat composer to render selected attachments as a thumbnail strip with per-tile remove buttons and a trailing Confidence Score: 5/5Safe to merge; the core picker-observer fix is correct and no runtime defects were found. Only P2 style findings (AnyView type erasure, minor indentation inconsistency). The primary silent-drop bug fix (body-level No files require special attention beyond the two P2 style notes in ChatComposer.swift. Prompt To Fix All With AIThis is a comment left during a code review.
Path: apps/shared/OpenClawKit/Sources/OpenClawChatUI/ChatComposer.swift
Line: 841-842
Comment:
**`AnyView` type-erasure on layout closures**
`AttachmentsStripLayout` stores its `addMore` and `tile` closures as `(CGFloat) -> AnyView`, which erases SwiftUI's structural identity on every call. SwiftUI cannot diff through `AnyView`, so any attachment addition/removal or size change causes it to throw away and recreate the tile subtrees rather than updating them in place — which means remove-animations and identity-based transitions (e.g. `.matchedGeometryEffect`) won't work correctly when they're added later.
A generic approach preserves identity at zero cost:
```swift
// Before
let addMore: (CGFloat) -> AnyView
let tile: (OpenClawPendingAttachment, CGFloat) -> AnyView
// After
let addMore: (CGFloat) -> AddMoreContent
let tile: (OpenClawPendingAttachment, CGFloat) -> TileContent
```
with `AddMoreContent` and `TileContent` as generic type parameters on the struct. If a single concrete generic is unwieldy, a `@ViewBuilder` closure typed as `some View` via an opaque-return wrapper also works.
How can I resolve this? If you propose a fix, please make it concise.
---
This is a comment left during a code review.
Path: apps/shared/OpenClawKit/Sources/OpenClawChatUI/ChatComposer.swift
Line: 61-62
Comment:
**Inconsistent indentation in modifier chain after `#if`**
After the `#endif` that closes the iOS-only `.onChange`, the continuing modifiers (`.padding`, `.background`, `.onDrop`, `.onAppear`) are indented at irregular levels (12 spaces, then 16 spaces) compared to the surrounding file which uses 8-space alignment for chained view modifiers. This is confusing to read and will trip up a future editor who doesn't know whether the indentation is meaningful.
How can I resolve this? If you propose a fix, please make it concise.Reviews (2): Last reviewed commit: "feat(chat): photos-picker-style attachme..." | Re-trigger Greptile |
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Codex review: needs real behavior proof before merge. Summary Reproducibility: yes. for a source-level path: with an existing attachment while the toolbar is visible, both the toolbar picker and the new add-more picker are mounted and can observe the same selection. I did not run a physical-device repro in this read-only review. Real behavior proof Next step before merge Security Review findings
Review detailsBest possible solution: Keep this PR open as the active implementation candidate, but land it only after picker loading uses one always-mounted observer with an empty-reset guard and current-head iPhone proof is attached. Do we have a high-confidence way to reproduce the issue? Yes for a source-level path: with an existing attachment while the toolbar is visible, both the toolbar picker and the new add-more picker are mounted and can observe the same selection. I did not run a physical-device repro in this read-only review. Is this the best way to solve the issue? No. The UI direction is reasonable, but the current implementation should use one stable observer instead of sibling picker observers and should include artifact-backed latest-head device proof. Full review comments:
Overall correctness: patch is incorrect What I checked:
Likely related people:
Remaining risk / open question:
Codex review notes: model gpt-5.5, reasoning high; reviewed against 947c9512c30b. |
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Thanks for the review. Heads-up: this review was made against 1. Focused-composer interaction fix. The 2. Dead-method cleanup. Re: missing test for the new layout — agreed, this is a real gap. We don't have a snapshot-test harness in Diff is still a single SwiftUI file ( |
Status update — marking back to DraftI want to be straight with reviewers: this PR isn't ready yet, and an earlier revision of the PR body overclaimed the verification I'd actually done. Apologies for the noise. Where it actually stands:
Marking as Draft so this doesn't sit in a maintainer's queue while it's still in flux. Sorry for the back-and-forth. |
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Codex bot — thanks for the read; agreed the PR is the active implementation candidate, not obsolete-vs-main, and your "validate on device, focused composer, add-more reachability" framing is the right bar. Doing exactly that surfaced and fixed a real bug during 04-05 AM CEST device testing on 2026-04-29 (iPhone, iOS 26, OTA Debug build): Round 1 — mid-revision IPA:
Root cause: both the toolbar Fix (now in the branch): single Round 2 — post-fix IPA:
So Codex's "validate focused composer keeps add-more reachable" ask actually validated a structural correctness property the previous revision was failing. Updated PR body covers this; force-push pending René's morning sign-off (to maintain the no-surprise-force-push norm on the fork). Tracking the snapshot-test harness as a scoped follow-up — that's the layer that should have caught the sibling-observer bug. Re: tests — agreed nothing in |
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Pushed rebased + dup-fix branch onto latest End-to-end verified on iPhone (iOS 26) post-rebase across all 4 PhotosPicker codepaths:
Diff vs the previous PR head: rebase + the structural dup-fix (single body-level |
… add-more tile Replaces the linear horizontal attachment strip with a row of thumbnail tiles that shrink to fit row width (capped at 64pt, floored at 36pt before falling back to horizontal scroll). A trailing dashed-outline "+" tile provides an always-visible add-more affordance, mirroring the iOS Photos picker's interaction pattern. The new "+" tile reuses PhotosPicker on iOS and the existing file picker on macOS. Each thumbnail keeps its own remove (X) overlay. Includes a fix for an interaction bug: when the composer is focused (toolbar hidden), the `attachmentPicker` view that previously owned the .onChange handler for picker selections is removed from the view tree, which would cause selections from the new "+" tile to silently drop. The handler is now attached directly to the PhotosPicker in `addMoreTile` so it remains active in both expanded and compacted composer states. `loadPhotosPickerItems` is idempotent on the same items snapshot, so the dual handlers do not double-load. Touches only ChatComposer.swift (+150 / -30).
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Heads up: this PR needs to be updated against current |
Summary
Adds a thumbnail strip + "+" tile to the chat composer's attachment row so users can review, remove, and add more attachments while the keyboard is up and the toolbar is compacted.
+tile that opens a freshPhotosPicker. Both the toolbar PhotosPicker and the in-strip PhotosPicker share the samepickerItemsstate and the same.onChangeloader, so additions from either path go through one code path.Change Type (select all)
Scope (select all touched areas)
Linked Issue/PR
Root Cause (if applicable)
.onChange(of: pickerItems)handler) is conditionally inserted into the view tree based on focus state. When the keyboard is up the toolbar is removed, taking the only.onChangehandler with it — so any picker selection from a child view fires no loader.+tile) in a sibling view exposed the conditional-handler problem.Regression Test Plan (if applicable)
ChatComposerSnapshotTests/ChatComposerUITests(no snapshot harness exists inOpenClawKitTeststoday; pulling inswift-snapshot-testingis bigger than this PR's scope).+tile → attachment appears in strip..onChangedirectly on the+-tile PhotosPicker so the handler exists wherever the picker exists.User-visible / Behavior Changes
+tile opens the PhotosPicker to add more, even with the keyboard up.Diagram (if applicable)
Security Impact (required)
Repro + Verification
Environment
Steps
cd apps/shared/OpenClawKitswift buildExpected
Actual
Evidence
+tile) will be attached as a follow-up comment. Reviewers wanting to reproduce: run a Debug build on a real device, focus the composer, attach an image from the toolbar PhotosPicker, then try to add a second one without dismissing the keyboard — onmainyou can't; on this branch the+tile makes it work.Human Verification (required)
+tile path. Code path traced — mirrored.onChangeis on the same view as the picker, so an addition cannot fire without the loader.+-tile + remove + send round-trip on a real iPhone with a real keyboard; iPad / large-screen iOS where the composer doesn't compact. Pending follow-up comment with screenshots.Review Conversations
Greptile review (2 threads) addressed in code and resolved. GitHub Codex review answered with a top-level comment; only outstanding ask is a snapshot-test harness, deferred as scoped follow-up (not blocking this PR).
Compatibility / Migration
Risks and Mitigations
HStackinside aScrollViewthat already exists for the toolbar..onChangehandlers double-load picker items.loadPhotosPickerItemsis idempotent on the same items snapshot; comment in source explains the intentional duplication.swift-snapshot-testingfor this package; fix is documented inline.