feat(snackbar): drive overlay from tray state machine

Build one RecordingSnackbar in _TrayApp and show/hide it from the single _apply_state seam: a red "Recording" pill while capturing, an amber "Processing" pill while the pipeline runs, hidden on idle. Hide it on quit. Always-on for v1; no config/settings surface.

Author: KristianP26

src/main.py

@@ -39,6 +39,7 @@
 from src.injector import type_text
 from src.rewrite import rewrite
 from src.settings_dialog import SettingsDialog
+from src.snackbar import RecordingSnackbar, snackbar_content_for
 from src.stt import transcribe
 from src.utils import AppError, PipelineResult, ScreamerError, SignalBridge
 
@@ -125,6 +126,8 @@ def __init__(self, startup_mode: bool = False) -> None:
         self._recording = False
         self._enabled = True
 
+        self._snackbar = RecordingSnackbar()
+
         self._build_tray()
         self._build_hotkey()
         self._apply_state(TrayState.IDLE)
@@ -275,6 +278,12 @@ def _apply_state(self, state: TrayState) -> None:
         }
         self._tray.setToolTip(f"Screamer — {labels[state]}")
 
+        content = snackbar_content_for(state.value)
+        if content is None:
+            self._snackbar.hide_state()
+        else:
+            self._snackbar.show_state(*content)
+
     # ------------------------------------------------------------------
     # Recording lifecycle
     # ------------------------------------------------------------------
@@ -470,6 +479,7 @@ def _exit(self) -> None:
 
         # 5. Quit Qt.
         self._tray.hide()
+        self._snackbar.hide_state()
         QApplication.instance().quit()
 
 

tests/test_snackbar_wiring.py

@@ -0,0 +1,40 @@
+import os
+import unittest
+from unittest.mock import MagicMock
+
+os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
+
+from PySide6.QtCore import QObject
+from PySide6.QtWidgets import QApplication
+
+from src.icons import TrayState
+from src.main import _TrayApp
+
+
+def _bare_app():
+    """Construct a _TrayApp without running its real __init__/Qt build steps."""
+    QApplication.instance() or QApplication([])
+    app = _TrayApp.__new__(_TrayApp)
+    QObject.__init__(app)
+    app._tray = MagicMock()       # _apply_state calls setIcon/setToolTip
+    app._snackbar = MagicMock()   # what we assert on
+    return app
+
+
+class SnackbarWiringTests(unittest.TestCase):
+    def test_recording_state_shows_snackbar_with_content(self):
+        app = _bare_app()
+        app._apply_state(TrayState.RECORDING)
+        app._snackbar.show_state.assert_called_once_with("Recording", (229, 57, 53))
+        app._snackbar.hide_state.assert_not_called()
+
+    def test_processing_state_shows_amber(self):
+        app = _bare_app()
+        app._apply_state(TrayState.PROCESSING)
+        app._snackbar.show_state.assert_called_once_with("Processing", (255, 179, 0))
+
+    def test_idle_state_hides_snackbar(self):
+        app = _bare_app()
+        app._apply_state(TrayState.IDLE)
+        app._snackbar.hide_state.assert_called_once_with()
+        app._snackbar.show_state.assert_not_called()