Hero image for cards — one of the card's own attachments, banded across its face

A card whose `hero:` names one of its own attachments draws that picture as a
banner across the full width of its plate, above the icon-and-title row,
aspect-fill cropped into a fixed 2.75 em band — 36pt at the standard body, and
em-scaled like every other figure the board draws, so it grows with the system
text size and with the board's zoom rather than shrinking against a title twice
its usual size. The figure sits deliberately under the 44pt a plain one-line
card is tall: a hero card should read as a card with a picture on it rather than
a picture with a caption, which is 03's standing rule that the title dominates.

The key's grammar is a **bare filename**, and that is what separates it from the
board background's `image` subkey rather than a nervousness about paths. A board
names a file anywhere under its root, so a path is that key's reading and where
it leads is the renderer's question. A card names one of the files it already
owns — the flat `attachments/` folder the app lists, relocates into, and carries
through every move, copy, trash and restore — so `hero: art/sketch.png` is not an
awkward spelling of a hero image, it is a value the key cannot mean. It therefore
has no reading at all: a value carrying a separator, or spelling `.`/`..`, or
empty, is malformed at the document layer, which renders it as absent and leaves
the coerce tier's trace, exactly as `width: 1.5` does. The bytes stay as written,
the resolver re-checks containment anyway, and the whole degrade family below
that — a name pointing at a missing file, an unreadable one, or one that is not
an image — ends the same way: no banner, no defect, nothing written.

That last promise is about *height* as much as about ink, so the band is given no
height at all until a picture has actually decoded. A card whose hero cannot be
drawn lays out identically to a card with no key, structurally rather than by a
branch somebody has to remember; the price is one settle per hero as a board
opens, and none after that. Everything else the face draws is attached outside
the new stack and is untouched by it — the accent stripe still runs the plate's
full leading edge across the band's corner, the selection and file-hover strokes
still ring the whole plate, the cut and drag dims still cover it, and the drop
model still registers the plate's real height, so a hero card is simply a taller
card the masonry already understands. The trash draws it too, by the one-face
rule.

Decoding is ImageIO's downsampling path off the main actor at a quarter of the
backdrop's pixel budget (`BoardBackdrop.decode` gained the limit as a parameter
rather than being copied), and the results live in one app-wide, deliberately
non-observable cache keyed on path plus the file's date and size. Non-observable
because a tracked write there would invalidate every hero face on the board,
which is the O(board) invalidation this view was rebuilt once already to shed;
each face holds its own picture in view state and seeds it from the cache, which
is also what lets the drag replica — whose preview builder is non-escaping and
cannot await anything — carry the band at the face's real height. Taking a stamp
twice from one URL value turned out to answer with the first read's date and size
however many times the bytes had changed, so `stamp(of:)` now drops its cached
resource values first; noticing a replacement is the only thing a stamp is for.

The face takes the resolved URL as a compared input rather than resolving it, for
selected-ness's reason one axis over: resolving needs the card's folder, which a
face does not know, and finding it from the snapshot would be a board walk per
face. The lane and the trash column each know their own container and compute it
once for the whole strip.

There is no in-app setter this version — the key is written by hand or by an
agent, which is why the guide bumps to v13 with a clause spelling the grammar out
beside the other card keys, and why `attachments/` gets the one-line pointer an
agent that has just written `![](attachments/x.png)` will need. "Set as Hero"
from the attachment row is future work, as is the card window and print, which
draw the same model and show no banner today.

Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy
This commit is contained in:
2026-08-08 23:41:15 -04:00
parent f9f284cac9
commit ce92c24190
19 changed files with 975 additions and 64 deletions
+37
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@@ -1065,6 +1065,43 @@ struct BoardLoaderOptionalOrderTests {
#expect(byID[ranked] == 1024)
#expect(byID[orderless] == 2048)
}
/// **`hero` rides onto the card model, on both sides of the container boundary** (03-board-ui.md
/// § Card face Hero image). The trash half is the one worth writing down: a trashed card is an
/// ordinary card in a special place and draws the same face, so a snapshot that dropped the key
/// on the way through `.trash/` would silently un-band every deleted card.
///
/// The malformed case rides too, as a *shape* rather than a value: the coerce tier reports on it
/// (`coercedFrontmatter`), and the face reads it as no hero at all.
@Test func heroCarriesOntoCardsInBothContainers() throws {
let fixture = try BoardFixture()
defer { fixture.tearDown() }
let lane = uuidFolderName()
let card = uuidFolderName()
let pathy = uuidFolderName()
let bare = uuidFolderName()
let trashed = uuidFolderName()
try fixture.index("", "schema: 1\n")
try fixture.index(lane, "schema: 1\norder: 1024\n")
try fixture.index("\(lane)/\(card)", "schema: 1\nkind: card\norder: 1024\nhero: sketch.png\n")
try fixture.index("\(lane)/\(pathy)", "schema: 1\nkind: card\norder: 2048\nhero: art/sketch.png\n")
try fixture.index("\(lane)/\(bare)", "schema: 1\nkind: card\norder: 3072\n")
try fixture.index(".trash/\(trashed)", "schema: 1\nkind: card\nhero: cover.jpg\n")
let result = try BoardLoader.load(boardRoot: fixture.root)
let cards = Dictionary(uniqueKeysWithValues: result.model.lanes[0].cards.map { ($0.id.rawValue, $0.hero) })
#expect(cards[card] == .valid("sketch.png"))
#expect(cards[pathy] == .malformed(raw: "art/sketch.png"))
#expect(cards[bare] == .missing)
#expect(result.model.trash.map(\.hero) == [.valid("cover.jpg")])
let byPath = Dictionary(uniqueKeysWithValues:
result.coercedFrontmatter.map { ($0.path, $0.fields.map(\.key)) })
#expect(byPath["\(lane)/\(pathy)/index.md"] == ["hero"])
#expect(byPath["\(lane)/\(card)/index.md"] == nil)
}
}
// MARK: - Encoding strictness
+1
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@@ -208,6 +208,7 @@ struct BoardZoomMetricsTests {
("cardCornerRadius", { BoardMetrics.cardCornerRadius(bodyPointSize: $0) }),
("cardStripeWidth", { BoardMetrics.cardStripeWidth(bodyPointSize: $0) }),
("cardContentPadding", { BoardMetrics.cardContentPadding(bodyPointSize: $0) }),
("cardHeroHeight", { BoardMetrics.cardHeroHeight(bodyPointSize: $0) }),
("cardSpacing", { BoardMetrics.cardSpacing(bodyPointSize: $0) }),
("nominalCardHeight", { BoardMetrics.nominalCardHeight(bodyPointSize: $0) }),
("resizeHandleWidth", { BoardMetrics.resizeHandleWidth(bodyPointSize: $0) }),
+278
View File
@@ -0,0 +1,278 @@
import CoreGraphics
import Foundation
import ImageIO
import Testing
@testable import Kanban
/// **The card face's hero image** (03-board-ui.md § Card face Hero image; the card's `hero` key,
/// 01-storage-format.md § Frontmatter).
///
/// The *reading* lives with its siblings in `FrontmatterTests` and the *metric* with the rest of the
/// board's geometry in `VisualAccommodationsTests`/`BoardZoomTests`; what is here is everything new:
/// where a name resolves (`CardHero`), what the band can actually draw (the decode), and the shared
/// cache the drag replica depends on being able to read synchronously (`CardHeroCache`).
// MARK: - Fixtures
/// A card folder with an `attachments/` inside it, under a temp root.
private struct CardFixture {
let root: URL
let lane = "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa"
let card = "bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb"
var cardFolder: URL {
root
.appendingPathComponent(lane, isDirectory: true)
.appendingPathComponent(card, isDirectory: true)
}
var attachments: URL {
cardFolder.appendingPathComponent("attachments", isDirectory: true)
}
init() throws {
root = FileManager.default.temporaryDirectory
.appendingPathComponent("CardHeroTests-\(UUID().uuidString)", isDirectory: true)
try FileManager.default.createDirectory(at: attachments, withIntermediateDirectories: true)
}
func tearDown() {
try? FileManager.default.removeItem(at: root)
}
}
/// A real PNG of the given pixel size the only way to test a decode honestly, since the whole
/// question is what ImageIO makes of actual bytes.
@discardableResult
private func writePNG(at url: URL, width: Int, height: Int) throws -> URL {
let context = try #require(CGContext(
data: nil,
width: width,
height: height,
bitsPerComponent: 8,
bytesPerRow: 0,
space: CGColorSpaceCreateDeviceRGB(),
bitmapInfo: CGImageAlphaInfo.premultipliedLast.rawValue
))
context.setFillColor(CGColor(red: 0.2, green: 0.4, blue: 0.8, alpha: 1))
context.fill(CGRect(x: 0, y: 0, width: width, height: height))
let image = try #require(context.makeImage())
let destination = try #require(
CGImageDestinationCreateWithURL(url as CFURL, "public.png" as CFString, 1, nil))
CGImageDestinationAddImage(destination, image, nil)
#expect(CGImageDestinationFinalize(destination))
return url
}
/// The card as the loader reads it the model value the face is handed, rather than one assembled
/// by hand, so the carry-through and the resolution are exercised against the same thing.
private func loadedCard(_ fixture: CardFixture, frontmatter: String) throws -> Card {
func index(_ folder: URL, _ text: String) throws {
try FileManager.default.createDirectory(at: folder, withIntermediateDirectories: true)
try "---\n\(text)---\n"
.write(to: folder.appendingPathComponent("index.md"), atomically: true, encoding: .utf8)
}
try index(fixture.root, "schema: 1\n")
try index(fixture.root.appendingPathComponent(fixture.lane, isDirectory: true), "schema: 1\norder: 1024\n")
try index(fixture.cardFolder, frontmatter)
let model = try BoardLoader.load(boardRoot: fixture.root).model
return try #require(model.lanes.first?.cards.first)
}
// MARK: - Where a name resolves
@Suite("Card hero ▸ the name resolves inside the card's own attachments")
struct CardHeroResolutionTests {
/// The whole grammar: a bare filename lands directly in this card's `attachments/`, which is what
/// makes a hero survive every move, copy, trash and restore the card takes the folder travels
/// with it and nothing has to be rewritten.
@Test("A bare filename lands in this card's attachments folder")
func aBareNameResolves() throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
#expect(CardHero.imageURL(named: "sketch.png", inCardFolder: fixture.cardFolder)?.path
== fixture.attachments.appendingPathComponent("sketch.png").path)
// Nothing about the name is policed here beyond the shape: a dot file, a tilde and spaces are
// all filenames, and one naming nothing simply decodes to nothing later.
#expect(CardHero.imageURL(named: ".hidden.png", inCardFolder: fixture.cardFolder) != nil)
#expect(CardHero.imageURL(named: "~a shot 2.png", inCardFolder: fixture.cardFolder) != nil)
}
/// **Belt over the reading's braces.** `FrontmatterDocument.hero` already refuses a path, so
/// nothing pathy should ever reach here but a lenient reading must never be the only thing
/// standing between a value and the filesystem, and this is the layer that builds the URL.
///
/// The last two are what makes this stricter than `BoardBackdrop`'s check: "inside the folder"
/// and "directly inside the folder" are different promises, and an attachment is the second.
@Test("Anything that is not a name resolves nowhere")
func pathsResolveNowhere() throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
#expect(CardHero.imageURL(named: "", inCardFolder: fixture.cardFolder) == nil)
#expect(CardHero.imageURL(named: "art/sketch.png", inCardFolder: fixture.cardFolder) == nil)
#expect(CardHero.imageURL(named: "../sketch.png", inCardFolder: fixture.cardFolder) == nil)
#expect(CardHero.imageURL(named: "/etc/passwd", inCardFolder: fixture.cardFolder) == nil)
#expect(CardHero.imageURL(named: "attachments/sketch.png", inCardFolder: fixture.cardFolder) == nil)
#expect(CardHero.imageURL(named: ".", inCardFolder: fixture.cardFolder) == nil)
#expect(CardHero.imageURL(named: "..", inCardFolder: fixture.cardFolder) == nil)
}
/// The card-level entry point, on the board side: the container is the lane folder, and the card
/// folder is appended here so the face never has to know its own path.
@Test("A card's hero resolves under its container")
func aCardResolvesUnderItsContainer() throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
let card = try loadedCard(fixture, frontmatter: "schema: 1\nkind: card\norder: 1024\nhero: sketch.png\n")
let lane = fixture.root.appendingPathComponent(fixture.lane, isDirectory: true)
#expect(CardHero.imageURL(for: card, inContainer: lane)?.path
== fixture.attachments.appendingPathComponent("sketch.png").path)
}
/// **The no-key-no-change identity** the card every board is made of. No key means no reading,
/// no URL, no band, no trace, and bytes that come back exactly as they went in.
@Test("A card with no hero key resolves to nothing and changes nothing")
func noKeyIsNoChange() throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
let text = "schema: 1\nkind: card\norder: 1024\ntitle: Plain\n"
let card = try loadedCard(fixture, frontmatter: text)
let lane = fixture.root.appendingPathComponent(fixture.lane, isDirectory: true)
#expect(card.hero == .missing)
#expect(CardHero.imageURL(for: card, inContainer: lane) == nil)
#expect(card.document.coercedFields.isEmpty)
#expect(card.document.serialized() == "---\n\(text)---\n")
}
/// A malformed key is the same absence with a trace behind it: the face draws no band, and the
/// value the author wrote is still on disk for them to fix.
@Test("A pathy hero resolves to nothing, and the bytes stay as written")
func aMalformedKeyResolvesToNothing() throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
let text = "schema: 1\nkind: card\norder: 1024\nhero: art/sketch.png\n"
let card = try loadedCard(fixture, frontmatter: text)
let lane = fixture.root.appendingPathComponent(fixture.lane, isDirectory: true)
#expect(card.hero == .malformed(raw: "art/sketch.png"))
#expect(CardHero.imageURL(for: card, inContainer: lane) == nil)
#expect(card.document.serialized() == "---\n\(text)---\n")
}
}
// MARK: - What the band can draw
@Suite("Card hero ▸ what the band can draw")
struct CardHeroDecodeTests {
/// A hero is decoded **downsampled**, at the card's own limit rather than the backdrop's: a board
/// has one backdrop and may have hundreds of hero cards, so the figure is a per-card memory cost
/// as much as a decode cost.
@Test("An image decodes downsampled to the hero's own limit")
func anImageDecodesDownsampled() throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
let url = try writePNG(
at: fixture.attachments.appendingPathComponent("sketch.png"), width: 2400, height: 1200)
let decoded = try #require(BoardBackdrop.decode(url, limit: CardHero.maximumPixelSize))
#expect(decoded.width == CardHero.maximumPixelSize)
#expect(decoded.height == CardHero.maximumPixelSize / 2)
// The parameter is the whole reason the backdrop's decode was widened rather than copied.
#expect(CardHero.maximumPixelSize < BoardBackdrop.maximumPixelSize)
}
/// **Missing, unreadable, and not-an-image all end the same way** no picture, so no band, so a
/// face that renders exactly as one with no key (the ruling). No defect, no badge, and nothing
/// written.
@Test("A missing or non-image file decodes to nothing")
func nonImagesDecodeToNothing() throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
let missing = fixture.attachments.appendingPathComponent("gone.png")
#expect(BoardBackdrop.decode(missing, limit: CardHero.maximumPixelSize) == nil)
let notes = fixture.attachments.appendingPathComponent("notes.txt")
try "not a picture".write(to: notes, atomically: true, encoding: .utf8)
#expect(BoardBackdrop.decode(notes, limit: CardHero.maximumPixelSize) == nil)
// The liar: an image extension over text. The extension is not what is read.
let liar = fixture.attachments.appendingPathComponent("fake.png")
try "not a picture either".write(to: liar, atomically: true, encoding: .utf8)
#expect(BoardBackdrop.decode(liar, limit: CardHero.maximumPixelSize) == nil)
}
}
// MARK: - The shared cache
/// Serialized because the cache is app-wide by design (see `CardHeroCache`) one suite's fixtures
/// must not decide another's hits.
@MainActor
@Suite("Card hero ▸ the shared cache", .serialized)
struct CardHeroCacheTests {
/// **The claim the drag replica rests on**: a picture already on screen can be read back
/// *synchronously*, with no `stat` and no decode. A preview builder is non-escaping it runs
/// while the body does so a replica that had to await anything would lift a card with a hole
/// where its banner is.
@Test("A loaded hero reads back synchronously")
func aLoadedHeroReadsBackSynchronously() async throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
CardHeroCache.removeAll()
let url = try writePNG(
at: fixture.attachments.appendingPathComponent("sketch.png"), width: 800, height: 400)
#expect(CardHeroCache.image(forFileAt: url) == nil)
let loaded = await CardHeroCache.load(url)
#expect(loaded != nil)
#expect(CardHeroCache.image(forFileAt: url) != nil)
}
/// A file that is not an image caches nothing and, crucially, is not *remembered* as an image
/// either: the synchronous read stays empty, so the replica draws the same hero-less face the
/// board does.
@Test("A non-image caches nothing")
func aNonImageCachesNothing() async throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
CardHeroCache.removeAll()
let notes = fixture.attachments.appendingPathComponent("notes.txt")
try "not a picture".write(to: notes, atomically: true, encoding: .utf8)
#expect(await CardHeroCache.load(notes) == nil)
#expect(CardHeroCache.image(forFileAt: notes) == nil)
}
/// **Replaced bytes key differently** the freshness posture `AttachmentThumbnailCache` already
/// takes, and the reason there is no invalidation path to keep honest: the stamp is part of the
/// key, so a rewritten file cannot be answered with the old picture.
@Test("A replaced file keys differently")
func replacedBytesKeyDifferently() async throws {
let fixture = try CardFixture()
defer { fixture.tearDown() }
CardHeroCache.removeAll()
// Both are wider than the decode limit, so both come back at it the *shape* is what tells
// them apart, which is exactly what a stale entry could not fake.
let url = fixture.attachments.appendingPathComponent("sketch.png")
try writePNG(at: url, width: 2048, height: 1024)
let first = await CardHeroCache.load(url)
#expect(first?.height == CardHero.maximumPixelSize / 2)
try FileManager.default.removeItem(at: url)
try writePNG(at: url, width: 2048, height: 512)
let second = await CardHeroCache.load(url)
#expect(second?.height == CardHero.maximumPixelSize / 4)
}
}
+64
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@@ -794,6 +794,70 @@ struct FrontmatterLenientFieldTests {
#expect(try document("collapsed: true").unknownFields.isEmpty)
}
/// **`hero` reads like `title` with a gate after it** (03-board-ui.md § Card face Hero image;
/// 01-storage-format.md § Frontmatter's card table): the string family's scalar coercion, so a
/// quoted name reads as its own text and an unquoted one as its source span a filename that
/// looks like a number included.
@Test func heroReadsAnyScalarThatCouldNameAFile() throws {
#expect(try document("hero: sketch.png").hero == .valid("sketch.png"))
#expect(try document("hero: \"a picture.jpg\"").hero == .valid("a picture.jpg"))
// A scalar YAML types as something else still reads as the text the author typed the same
// coercion `title: 2048` gets, and `2048.png` is a perfectly good filename.
#expect(try document("hero: 2048").hero == .valid("2048"))
// Nothing about the *name* is policed beyond the gate below: a leading dot, a tilde and a
// space are all a filename's business, and one that names nothing simply resolves to nothing.
#expect(try document("hero: \".hidden.png\"").hero == .valid(".hidden.png"))
#expect(try document("hero: \"~shot.png\"").hero == .valid("~shot.png"))
}
/// **A path is not a hero image spelled awkwardly it is a value with no reading** (the bare
/// filename grammar, ruled 2026-08-09). Every separator position refuses: a subfolder, a climb
/// out, an absolute path, and a trailing slash. So do the two directory entries every folder
/// carries, and the empty string.
@Test func heroIsMalformedForEveryValueThatIsNotABareFilename() throws {
#expect(try document("hero: art/sketch.png").hero == .malformed(raw: "art/sketch.png"))
#expect(try document("hero: ../sketch.png").hero == .malformed(raw: "../sketch.png"))
#expect(try document("hero: /etc/passwd").hero == .malformed(raw: "/etc/passwd"))
// The mistake the key most invites: the folder is implied, so naming it is naming a path.
#expect(try document("hero: attachments/sketch.png").hero == .malformed(raw: "attachments/sketch.png"))
#expect(try document("hero: sketch.png/").hero == .malformed(raw: "sketch.png/"))
// The two entries every folder carries, which name a directory rather than a file.
#expect(try document("hero: .").hero == .malformed(raw: "."))
#expect(try document("hero: ..").hero == .malformed(raw: ".."))
// Empty can only be written quoted unquoted is null, which is an absence (below). The raw
// is the span as written, quotes included, like every other malformed value's.
#expect(try document("hero: \"\"").hero == .malformed(raw: "\"\""))
// And the string family's own floor: a sequence or mapping has no scalar reading at all.
#expect(try document("hero: [a.png]").hero == .malformed(raw: "[a.png]"))
#expect(try document("hero: {name: a.png}").hero == .malformed(raw: "{name: a.png}"))
}
/// **No key is no banner, and that is an absence rather than a failure** nothing to report and
/// nothing to render, which is the card every board is made of.
@Test func heroIsMissingWhenTheKeyIsAbsentOrNull() throws {
#expect(try document("schema: 1").hero == .missing)
#expect(try document("hero: null").hero == .missing)
#expect(try document("schema: 1").coercedFields.isEmpty)
}
/// A lenient field with no reading files a coerce-tier trace and leaves the bytes exactly as
/// written the family's posture, `hero` included.
@Test func anUnreadableHeroFilesATraceAndRoundTrips() throws {
let text = "---\nschema: 1\nkind: card\nhero: art/sketch.png\n---\nbody\n"
let parsed = try FrontmatterDocument.parse(text)
#expect(parsed.serialized() == text)
#expect(parsed.coercedFields == [CoercedField(key: "hero", raw: "art/sketch.png")])
// A readable name is an absence of trace, not a trace of a value.
#expect(try document("hero: sketch.png").coercedFields.isEmpty)
}
/// The key is the schema's, so the card window's Details section does not list it beside a user's
/// own overlay keys `iconColor`'s posture exactly: schema yes, control no.
@Test func heroIsSchemaOwnedRatherThanAnUnknownKey() throws {
#expect(FrontmatterKeys.schemaOwned.contains(FrontmatterKeys.hero))
#expect(try document("hero: sketch.png").unknownFields.isEmpty)
}
@Test func malformedLenientValuesStillRoundTrip() throws {
let text = "---\nschema: 1\nbackground: [red, blue]\nwidth: 1.5\nicon: {a: 1}\n---\nbody\n"
let document = try FrontmatterDocument.parse(text)
+50 -21
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@@ -262,7 +262,7 @@ struct CardFaceViewEquatableTests {
role: .board(openCard: { _ in }),
marquee: marquee,
drops: makeDrops(store: store, session: session, registry: registry),
isSelected: false,
hero: nil, isSelected: false,
selectedCount: 1
)
let after = CardFaceView(
@@ -271,7 +271,7 @@ struct CardFaceViewEquatableTests {
role: .board(openCard: { _ in Issue.record("the gate must not care which opener it holds") }),
marquee: marquee,
drops: makeDrops(store: store, session: session, registry: registry),
isSelected: false,
hero: nil, isSelected: false,
selectedCount: 1
)
#expect(before == after)
@@ -290,7 +290,7 @@ struct CardFaceViewEquatableTests {
let unselected = CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: false, selectedCount: 1
marquee: marquee, drops: drops, hero: nil, isSelected: false, selectedCount: 1
)
// The gate is now the *only* thing standing between a click and this face's repaint: nothing
@@ -298,21 +298,50 @@ struct CardFaceViewEquatableTests {
// leave a selected card wearing no accent ring at all.
#expect(unselected != CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: true, selectedCount: 1
marquee: marquee, drops: drops, hero: nil, isSelected: true, selectedCount: 1
))
// And the count, which the drag replica's fan and count badge are drawn from: a card that is
// still selected but now travels with four others has a different image under the cursor.
let alone = CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: true, selectedCount: 1
marquee: marquee, drops: drops, hero: nil, isSelected: true, selectedCount: 1
)
#expect(alone != CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: true, selectedCount: 5
marquee: marquee, drops: drops, hero: nil, isSelected: true, selectedCount: 5
))
}
/// **The hero is a compared input too** (03-board-ui.md § Card face Hero image) a resolution
/// the parent does, like selected-ness, and the one input that changes the face's *height*. A gate
/// that swallowed it would leave a card banding a picture it no longer names, or naming one it
/// never draws.
@Test("The resolved hero file is a difference")
func theHeroIsADifference() throws {
let fixture = try makeFixture()
defer { fixture.tearDown() }
let store = try BoardStore(rootURL: fixture.root)
let card = try firstCard(fixture.snapshot())
let marquee = MarqueeControl(
session: MarqueeSession(), registry: MarqueeTargetRegistry(), store: store
)
let drops = makeDrops(store: store, session: DragSession(), registry: LaneDropRegistry())
let sketch = fixture.root.appendingPathComponent("sketch.png")
func face(_ hero: URL?) -> CardFaceView {
CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, hero: hero, isSelected: false, selectedCount: 1
)
}
#expect(face(nil) == face(nil))
#expect(face(sketch) == face(sketch))
#expect(face(nil) != face(sketch))
#expect(face(sketch) != face(fixture.root.appendingPathComponent("cover.png")))
}
@Test("An edited card is unequal — the gate never withholds a repaint")
func anEditedCardIsADifference() throws {
let fixture = try makeFixture()
@@ -331,18 +360,18 @@ struct CardFaceViewEquatableTests {
#expect(before != after)
#expect(CardFaceView(store: store, card: before, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: false, selectedCount: 1)
marquee: marquee, drops: drops, hero: nil, isSelected: false, selectedCount: 1)
!= CardFaceView(store: store, card: after, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: false, selectedCount: 1))
marquee: marquee, drops: drops, hero: nil, isSelected: false, selectedCount: 1))
// And a different card, which is the ordinary within-lane case.
let sibling = try #require(try firstLane(fixture.snapshot()).cards.first {
$0.id == ItemID(rawValue: Ident.card2)
})
#expect(CardFaceView(store: store, card: after, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: false, selectedCount: 1)
marquee: marquee, drops: drops, hero: nil, isSelected: false, selectedCount: 1)
!= CardFaceView(store: store, card: sibling, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: false, selectedCount: 1))
marquee: marquee, drops: drops, hero: nil, isSelected: false, selectedCount: 1))
}
@Test("The two homes are never equal, and the trash's confirmation host is compared by identity")
@@ -360,21 +389,21 @@ struct CardFaceViewEquatableTests {
let confirmations = TrashConfirmations()
let board = CardFaceView(store: store, card: card, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: false, selectedCount: 1)
marquee: marquee, drops: drops, hero: nil, isSelected: false, selectedCount: 1)
let trash = CardFaceView(store: store, card: card, role: .trash(confirmations: confirmations),
marquee: marquee, drops: drops, isSelected: false, selectedCount: 1)
marquee: marquee, drops: drops, hero: nil, isSelected: false, selectedCount: 1)
// The role decides which container a click selects in, whether the face has an Open gesture
// at all, and whether Delete is the permanent one never a difference to swallow.
#expect(board != trash)
#expect(trash == CardFaceView(store: store, card: card,
role: .trash(confirmations: confirmations),
marquee: marquee, drops: drops,
isSelected: false, selectedCount: 1))
hero: nil, isSelected: false, selectedCount: 1))
// Window-lived state, so identity is meaningful as well as cheap.
#expect(trash != CardFaceView(store: store, card: card,
role: .trash(confirmations: TrashConfirmations()),
marquee: marquee, drops: drops,
isSelected: false, selectedCount: 1))
hero: nil, isSelected: false, selectedCount: 1))
}
@Test("The window-lived collaborators are compared by identity, the strip's gap by value")
@@ -391,35 +420,35 @@ struct CardFaceViewEquatableTests {
let marquee = MarqueeControl(session: bandSession, registry: bandRegistry, store: store)
let drops = makeDrops(store: store, session: session, registry: registry)
let base = CardFaceView(store: store, card: card, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops, isSelected: false, selectedCount: 1)
marquee: marquee, drops: drops, hero: nil, isSelected: false, selectedCount: 1)
#expect(base != CardFaceView(store: other, card: card, role: .board(openCard: { _ in }),
marquee: marquee, drops: drops,
isSelected: false, selectedCount: 1))
hero: nil, isSelected: false, selectedCount: 1))
#expect(base != CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }), marquee: marquee,
drops: makeDrops(store: store, session: DragSession(), registry: registry),
isSelected: false, selectedCount: 1
hero: nil, isSelected: false, selectedCount: 1
))
#expect(base != CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }), marquee: marquee,
drops: makeDrops(store: store, session: session, registry: LaneDropRegistry()),
isSelected: false, selectedCount: 1
hero: nil, isSelected: false, selectedCount: 1
))
#expect(base != CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }), marquee: marquee,
drops: makeDrops(store: store, session: session, registry: registry, gap: 20),
isSelected: false, selectedCount: 1
hero: nil, isSelected: false, selectedCount: 1
))
#expect(base != CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }),
marquee: MarqueeControl(session: MarqueeSession(), registry: bandRegistry, store: store),
drops: drops, isSelected: false, selectedCount: 1
drops: drops, hero: nil, isSelected: false, selectedCount: 1
))
#expect(base != CardFaceView(
store: store, card: card, role: .board(openCard: { _ in }),
marquee: MarqueeControl(session: bandSession, registry: MarqueeTargetRegistry(), store: store),
drops: drops, isSelected: false, selectedCount: 1
drops: drops, hero: nil, isSelected: false, selectedCount: 1
))
}
}
@@ -47,6 +47,12 @@ struct BoardMetricsSettledFiguresTests {
#expect(BoardMetrics.laneHeaderTrailingReserve(bodyPointSize: size) == 18)
#expect(BoardMetrics.cardCornerRadius(bodyPointSize: size) == 8)
#expect(BoardMetrics.cardStripeWidth(bodyPointSize: size) == 4)
// The hero band (03-board-ui.md § Card face Hero image) 36pt at the standard body, inside
// the ruling's 2.53× and deliberately under the 44pt a plain one-line card is tall, so the
// title still dominates the face it bands.
#expect(BoardMetrics.cardHeroHeight(bodyPointSize: size) == 36)
#expect(BoardMetrics.cardHeroHeight(bodyPointSize: size)
< BoardMetrics.nominalCardHeight(bodyPointSize: size))
#expect(BoardMetrics.cardContentPadding(bodyPointSize: size) == 10)
#expect(BoardMetrics.cardRowSpacing(bodyPointSize: size) == 6)
#expect(BoardMetrics.cardSpacing(bodyPointSize: size) == 8)
@@ -102,6 +108,7 @@ struct BoardMetricsScalingTests {
("cardCornerRadius", { BoardMetrics.cardCornerRadius(bodyPointSize: $0) }),
("cardStripeWidth", { BoardMetrics.cardStripeWidth(bodyPointSize: $0) }),
("cardContentPadding", { BoardMetrics.cardContentPadding(bodyPointSize: $0) }),
("cardHeroHeight", { BoardMetrics.cardHeroHeight(bodyPointSize: $0) }),
("cardRowSpacing", { BoardMetrics.cardRowSpacing(bodyPointSize: $0) }),
("cardSpacing", { BoardMetrics.cardSpacing(bodyPointSize: $0) }),
("nominalCardHeight", { BoardMetrics.nominalCardHeight(bodyPointSize: $0) }),