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Grant Gilliam c347acbd97 Adapters: add Meet, Zoom, Teams (coloured border) + adapter registry
Front-loads the remaining visual adapters per the Signal→Meet→Zoom priority.
All three reuse GridCallAnalyzer's coloured-border (saturated) detection path
and share the new bottom-left name anchor:

- GridCallAnalyzer: generalise nameAtBottom:Bool into a NameAnchor enum
  (.bottomCenter for Signal's centered footer, .bottomLeft for Meet/Zoom/Teams
  where the name hugs the tile's bottom-left corner, .center for completeness).
  tileRect estimates the tile up-and-right of a bottom-left name.
- MeetAdapter (Google-blue ring, browser-hosted), ZoomAdapter (green/yellow
  border), TeamsAdapter (violet ring): coloured-border on, white-border off,
  bottom-left names. Geometry constants are first-pass pending real fixtures.
- AdapterRegistry.adapter(for:) maps CallDetector.DetectedApp → AppAdapter so
  VisualObserver can be constructed when live visual capture is wired in;
  unmapped apps degrade to audio-only.

Synthetic 4-tile tests: Meet picks each blue-bordered speaker with no
adjacent-tile bleed, Zoom picks the green-bordered speaker, and Signal's
white-only detector correctly ignores a coloured border. 18/18 XCTest pass.
2026-06-06 09:57:53 -05:00

18 lines
712 B
Swift

import Foundation
/// Maps a detected call app to its screen-reading adapter. One place to wire new
/// adapters; `VisualObserver` is constructed from whatever this returns when the
/// live visual capture is integrated into the session.
enum AdapterRegistry {
/// The adapter for a detected app, or nil if that app has no visual adapter
/// yet (the session then runs audio-only graceful degradation).
static func adapter(for app: CallDetector.DetectedApp) -> (any AppAdapter)? {
switch app {
case .signal: return SignalAdapter()
case .meet: return MeetAdapter()
case .zoom: return ZoomAdapter()
case .teams: return TeamsAdapter()
}
}
}