⌘V grows an image-data branch, below the app's own clipboard format and refused
outright while a file URL is on the pasteboard: a screenshot or a browser's Copy
Image lands as "Pasted Image.png" in the anchor card's attachments/, through the
very import path Finder file drops and ⇧⌘A take — one bracket, one Finder-style
collision ladder, one set of banners, and the same silence a drop's arrival has.
A card window's ⌘V pastes onto its own card; a focused text field still wins the
selector natively. A file-shaped flavor travels byte for byte, PNG preferred when
several are offered; TIFF and BMP are re-encoded to PNG, being interchange
encodings rather than files anyone wants in a folder.
The hero key gets the setter it was born owing: "Set as Hero" on any image row of
the attachment list, "Remove Hero" on the row that holds it, with menu-bar twins
so the context entry is nobody's only home. It writes as a restyle — one key, one
bracket, one invertible step on the window's own stack — and replaces rather than
refusing, because a card has one hero and the row that has it says Remove instead.
Edit ▸ Paste as Board Background is the same payload's other destination, taking
the existing background.image convention at its word: the picture into the board
folder as "Pasted Background.png", the colour subkey untouched, the generator's
overwrite-our-own-name rule inherited and its echo memo taught to tell the two
producers apart.
Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy
The measured defect: LaneView's empty-space double-click was a second
sequential .onTapGesture(count: 2) stacked over the single tap, and that
recogniser held every click in the lane — its own empty space and every
card face alike — hostage to the system double-click interval while it
disambiguated (~475 ms click-to-selection on a hosted board). The fix is
structural: the empty-space surfaces live on a background layer behind the
masonry, so a card's click never shares a gesture path with a lane
recogniser; one .onTapGesture branches on PointerClick.count (AppKit's own
clickCount, read the way ClickModifier reads the keyboard) — first click
selects, second creates, Finder's cadence with nothing to disambiguate; and
the layer carries a load-bearing empty .onDrag, because without a drag
source macOS holds primary clicks pending multi-click disambiguation
(measured: never fires alone, ~90 ms with one present). A measured viewport
floor makes each lane's blank space actually belong to the layer — a
ScrollView proposes nothing along its scroll axis, so only an explicit
minimum stretches the content — with the trash column as its twin, less the
padding that sits inside its scroll content. The template chooser's stacked
pair collapses to the same one-recogniser branch, and the attachment rows
move their double-click to a simultaneous gesture (instant there, because
the row's real .onDrag forces immediate delivery). PointerLatencyTests pins
the recovery with synthetic pointer events on a hosted board.
Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy
The card's complete file inventory: compact QuickLook-thumbnail rows
over Card.attachments — no reference tracking, subfolders tolerated
and unsurfaced — with a quiet header add affordance and the drop hint
empty state. The whole window is the file-drop surface, Edit mode
included (the editor's drag types were already filtered; now tested),
sharing the board's folder-refusal semantics literally: FinderDrop
moved verbatim into its own file so both windows run the same
partition and loss row. Dragged text still lands at the caret and is
inert elsewhere — the window delegate accepts file payloads only.
Rows open on double-click or Return, drag out their file URL, and
Remove is a bracketed write through FileManager.trashItem — the system
Trash, never a hard delete, returning the in-Trash URL so the promise
is testable; the attachment listing is the guard, so traversal and
subfolder names refuse in one line. Keyboard-native per 05: the
section is one Tab stop, arrows walk rows by name, Space toggles the
shared QuickLook panel, Backspace removes. File > Add Attachment
(shift-cmd-A) comes alive through the same import path.
Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY
rzen