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A file copied in Finder becomes a card's attachment — ⌘V's reserved clause finally answers

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The image branch's precedence ladder always had a second clause: a file URL on the
pasteboard suppresses it, "a different gesture with a different answer" that the
code deliberately declined rather than guessed at. This fills it in: one or more
file URLs paste through the same `importAttachments` a Finder drop takes — one
collision ladder, one folder refusal (`FinderDrop.partition`), one set of banners
— outranking raw image data riding beside it (a Finder-copied image file carries
both; the actual file lands, not a re-encoded copy of its bytes) while still
deferring to the app's own clipboard type. Both ⌘V surfaces read the same
`ClipboardStore.fileURLPayload`, so the board's fallback and the card window's own
branch stay in step by construction rather than by two hand-kept-in-sync checks.

Fixed a real leak in the body editor's paste yield along the way: `public.file-url`
conforms to `public.url`, which `NSTextView` legitimately reads for a pasted
hyperlink, and `NSPasteboard.availableType(from:)` matches by conformance rather
than exact type — so a Finder copy carrying a generic URL representation beside
its file URL would have been silently swallowed as text and never reached the
window's attachment branch at all. The yield now declines outright on any
file-URL pasteboard before the generic capability check runs.

Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy
This commit is contained in:
rzen
2026-08-09 08:38:07 -04:00
parent d0c546179f
commit 0fe92bdf38
9 changed files with 565 additions and 38 deletions
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Kanban/App/PastedImage.swift
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@@ -26,8 +26,11 @@ import os
/// 2. **File URLs are somebody else's branch.** A Finder copy puts `public.file-url` down, sometimes
/// with an image flavor beside it, and "the pasteboard's payload is IMAGE DATA (no file URL)" is
/// the ruling's own parenthesis. A file URL is a *reference* to something the user already has
/// filed; taking a second copy of it into `attachments/` behind their back is a different gesture
/// with a different answer, and this branch declines rather than guessing at it.
/// filed; taking a second copy of it into `attachments/` behind their back would be a different
/// gesture with a different answer, so this branch declines outright — and `ClipboardStore`'s own
/// file-URL branch (`pasteFiles`, ruled 2026-08-09) takes the reference at its word instead,
/// importing the file itself rather than a re-encoded copy of its bytes. A Finder-copied image
/// file therefore lands as the file it is, never as a second "Pasted Image.png" beside it.
/// 3. **Raw image data is the fallback**, which is the screenshot (⌃⇧⌘4), the browser's Copy Image,
/// and Preview's ⌘C.
///