rzen
fccdf56cf4
Four scenes (welcome, restore bootstrap, board group, card group) with system restoration disabled in favor of the registry's open-now flags: set when a window actually opens, cleared only on user close, so quit — and crash — leave exactly the restoration set behind. AppModel joins windows to sessions (shared store, registry record, card refs, held security scope); CloseFlushCoordinator pins 02's strict close order as a seam-injected machine (card sessions end, windows drain, store flushes, record stamps, teardown) with named slots where m6/m7 flushes land. HostedWindowController proxies — never replaces — SwiftUI's window delegate to intercept windowShouldClose for the flush, report frames, and place saved frames onto live screens. Card windows are (board path, case-folded card id) values: reopen focuses, and a snapshot-pure fate function dismisses on delete, tombstone, tombstoned lane, or cross-board move. Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY
80 lines
3.5 KiB
Swift
80 lines
3.5 KiB
Swift
import SwiftUI
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import os
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/// The launch-time restoration pass, wearing a window because that is the only place SwiftUI lets
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/// work like this run.
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///
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/// ### Why a window at all
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///
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/// Restoration has to open windows, and opening a window needs `openWindow`, which is only readable
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/// from a view. An `App.init()` cannot do it and `AppDelegate` has no environment. So the app
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/// presents one throwaway window at launch — 1×1, plain, ordered straight back out, absent from the
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/// Window menu — whose only job is to run the pass and then dismiss itself. It exists for a few
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/// hundred milliseconds and never draws.
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///
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/// It is presented **only** when there is something to restore (`KanbanApp` decides), so the ordinary
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/// launch-to-welcome path never creates it.
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///
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/// ### What the pass does
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///
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/// Reads the registry's flagged records in `lastOpened` order (`BoardRegistry.restorables()`), opens
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/// the available ones, and records the unavailable ones as failures — 02 § Launch and window
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/// lifecycle: "Other restorations proceed unaffected — never a launch-time modal chain, never a
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/// silent drop." Welcome comes up only if nothing was even attempted; a board that *was* attempted
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/// and then failed to load opens welcome from its own host, which is the same rule applied one layer
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/// down and keeps this pass from having to wait on loads it did not perform.
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struct RestoreBootstrapView: View {
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@Environment(AppModel.self) private var appModel
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@Environment(\.openWindow) private var openWindow
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@Environment(\.dismissWindow) private var dismissWindow
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@State private var windowController = HostedWindowController()
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private static let logger = Logger(subsystem: "dev.rzen.indie.Kanban", category: "launch")
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var body: some View {
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Color.clear
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.frame(width: 1, height: 1)
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.background(WindowAccessor(controller: windowController))
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.onAppear {
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// Out of sight before it can be seen. `orderOut` rather than a hidden style because
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// the scene must still exist — a window SwiftUI never presents never runs its task.
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windowController.onAttach = { window in
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window.alphaValue = 0
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window.orderOut(nil)
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}
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if let window = windowController.window {
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windowController.onAttach?(window)
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}
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}
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.task { await restore() }
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}
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private func restore() async {
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// Captured directly rather than waiting for `CaptureOpenWindow`'s `onAppear`: this task is
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// the app's first act, and `openBoard` needs the action now.
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appModel.captureWindowActions(open: openWindow, dismiss: dismissWindow)
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var attempted = 0
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for board in appModel.boardRegistry.restorables() {
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switch board {
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case let .available(_, url):
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appModel.openBoard(at: url)
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attempted += 1
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case let .unavailable(record):
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Self.logger.error("a flagged board could not be restored — its bookmark no longer resolves")
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appModel.recordLaunchFailure(
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path: record.lastKnownPath,
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message: "This board is unavailable. Its volume may be offline, or it may have been moved or deleted."
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)
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}
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}
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if attempted == 0 {
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appModel.showWelcome()
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}
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dismissWindow(id: WindowID.restoreBootstrap)
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}
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}
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