Hand selected words off to the platform's native dictionary surface
when the user opts into the new "System Dictionary" entry under
Settings → Languages → Dictionaries. The setting is exclusive: enabling
it disables all other providers (and vice versa) so the in-app lookup
button either always opens the popup or always invokes the OS — no
mixed states.
Per platform:
- macOS: AppKit's -[NSView showDefinitionForAttributedString:atPoint:]
via a top-level Tauri command in src-tauri/src/macos/system_dictionary.rs.
Anchored at the selection's bottom-center (CSS pixels mapped into
NSView coords), so the inline Lookup HUD appears just below the
highlighted text without raising Dictionary.app to the foreground.
- iOS: UIReferenceLibraryViewController presented as a half-detent
pageSheet on iPhone (medium → large drag-to-expand) and as a
formSheet on iPad. Implemented in the native-bridge plugin.
- Android: ACTION_PROCESS_TEXT intent with EXTRA_PROCESS_TEXT_READONLY,
dispatched without createChooser so users get the standard system
disambiguation dialog with "Just once / Always" buttons. Reports
unavailable=true when no app handles the intent so the TS layer can
silently skip rather than open an empty chooser.
Web/Linux/Windows hide the row entirely. The provider is a sentinel —
the registry filters it out of the popup tab list (it has no in-popup
UI) and the annotator's handleDictionary checks isSystemDictionaryEnabled
to dispatch directly to the native bridge before opening the in-app
DictionaryPopup.
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