Add display options for wall-mounted tablet operation

Squeezer/src/main/AndroidManifest.xml

@@ -132,6 +132,11 @@
             android:theme="@style/Theme.MaterialComponents.NoActionBar">
         </activity>
 
+        <activity
+            android:name=".screensaver.BlackScreensaver"
+            android:theme="@style/Theme.MaterialComponents.NoActionBar">
+        </activity>
+
         <service android:exported="false" android:label="Squeezer Service"
             android:foregroundServiceType="mediaPlayback"
             android:name=".service.SqueezeService">

Squeezer/src/main/java/uk/org/ngo/squeezer/NowPlayingFragment.java

@@ -527,6 +527,8 @@ public boolean onSwipeUp() {
     @UiThread
     private void updatePlayPauseIcon(@PlayerState.PlayState String playStatus) {
         playPauseButton.setIconResource((PlayerState.PLAY_STATE_PLAY.equals(playStatus)) ? R.drawable.ic_action_pause : R.drawable.ic_action_play);
+        // send a signal to the screensaver timers to start or stop count down
+        mActivity.setNotplayingTimer((PlayerState.PLAY_STATE_PLAY.equals(playStatus)) ? false : true);
     }
 
     @UiThread

Squeezer/src/main/java/uk/org/ngo/squeezer/Preferences.java

@@ -172,6 +172,9 @@ public final class Preferences {
     // Preferred UI theme.
     static final String KEY_ON_THEME_SELECT_ACTION = "squeezer.theme";
 
+    // Behavior of NowPlaying screen
+    public static final String KEY_ON_NOW_PLAYING_SELECT = "squeezer.always_to_nowplaying";
+
     // Screensaver
     public static final String KEY_SCREENSAVER = "squeezer.screensaver";
 
@@ -536,6 +539,14 @@ public void setTheme(ThemeManager.Theme theme) {
         sharedPreferences.edit().putString(Preferences.KEY_ON_THEME_SELECT_ACTION, theme.name()).apply();
     }
 
+    public boolean isNowPlayingSwitching() {
+        return sharedPreferences.getBoolean(KEY_ON_NOW_PLAYING_SELECT, false);
+    }
+
+    public void setNowPlayingSwitching(boolean b) {
+        sharedPreferences.edit().putBoolean(Preferences.KEY_ON_NOW_PLAYING_SELECT, b).apply();
+    }
+
     public ScreensaverMode getScreensaverMode() {
         String string = sharedPreferences.getString(KEY_SCREENSAVER, null);
         return string == null ? ScreensaverMode.OFF : ScreensaverMode.valueOf(string);
@@ -892,9 +903,12 @@ public boolean isAll() {
     }
 
     public enum ScreensaverMode implements EnumWithText {
-        OFF(R.string.settings_screensaver_off),
         ON(R.string.settings_screensaver_on),
-        CLOCK(R.string.settings_screensaver_clock);
+        OFF(R.string.settings_screensaver_off),
+        OFF_NOTPLAYING(R.string.settings_screensaver_off_whenNotPlaying),
+        CLOCK(R.string.settings_screensaver_clock),
+        CLOCK_NOTPLAYING(R.string.settings_screensaver_clock_whenNotPlaying);
+
 
         private final int labelId;
 

Squeezer/src/main/java/uk/org/ngo/squeezer/SettingsFragment.java

@@ -185,6 +185,9 @@ private void fillDisplayPreferences(Preferences preferences) {
         }
         onSelectThemePref.setOnPreferenceChangeListener(this);
 
+        final SwitchPreferenceCompat alwaysSwitchToNowPlaying = findPreference(Preferences.KEY_ON_NOW_PLAYING_SELECT);
+        alwaysSwitchToNowPlaying.setChecked(preferences.isNowPlayingSwitching());
+
         ListPreference screensaverPref = findPreference(Preferences.KEY_SCREENSAVER);
         fillEnumPreference(screensaverPref, Preferences.ScreensaverMode.class, preferences.getScreensaverMode());
     }

Squeezer/src/main/java/uk/org/ngo/squeezer/framework/BaseActivity.java

@@ -62,6 +62,7 @@
 import uk.org.ngo.squeezer.model.Action;
 import uk.org.ngo.squeezer.model.DisplayMessage;
 import uk.org.ngo.squeezer.model.JiveItem;
+import uk.org.ngo.squeezer.screensaver.BlackScreensaver;
 import uk.org.ngo.squeezer.screensaver.Screensaver;
 import uk.org.ngo.squeezer.service.ISqueezeService;
 import uk.org.ngo.squeezer.service.SqueezeService;
@@ -160,6 +161,32 @@ protected void addActionBar() {
         }
     }
 
+    private static final int INACTIVITY_TIME = 5 * 60 * 1000;
+    Handler inactivityHandler = null;
+    Runnable inactivityAction;
+
+    Handler notplayingHandler = null;
+    Runnable notplayingAction;
+
+    private void setInactivityTimer(boolean b) {
+        if (inactivityHandler != null) {
+            inactivityHandler.removeCallbacks(inactivityAction);
+            if (b) {
+                inactivityHandler.postDelayed(inactivityAction, INACTIVITY_TIME);
+            }
+        }
+    }
+
+    public void setNotplayingTimer(boolean b) {
+        if (notplayingHandler != null) {
+            notplayingHandler.removeCallbacks(notplayingAction);
+            if (b) {
+                notplayingHandler.postDelayed(notplayingAction, INACTIVITY_TIME);
+            }
+        }
+    }
+
+
     @Override
     @CallSuper
     protected void onCreate(Bundle savedInstanceState) {
@@ -184,7 +211,19 @@ protected void onCreate(Bundle savedInstanceState) {
                 if (preferences.getScreensaverMode() == Preferences.ScreensaverMode.CLOCK) {
                     inactivityHandler = new Handler();
                     inactivityAction = () -> startActivity(new Intent(this, Screensaver.class));
-                    setInactivityTimer();
+                    setInactivityTimer(true);
+                }
+                if (preferences.getScreensaverMode() == Preferences.ScreensaverMode.CLOCK_NOTPLAYING ) {
+                    notplayingHandler = new Handler();
+                    notplayingAction = () -> startActivity(new Intent(this, Screensaver.class));
+                    // do not yet start timer, because player state (playing or paused) is not known here
+                    setNotplayingTimer(false);
+                }
+                if (preferences.getScreensaverMode() == Preferences.ScreensaverMode.OFF_NOTPLAYING ) {
+                    notplayingHandler = new Handler();
+                    notplayingAction = () -> startActivity(new Intent(this, BlackScreensaver.class));
+                    // do not yet start timer, because player state (playing or paused) is not known here
+                    setNotplayingTimer(false);
                 }
             }
         });
@@ -212,9 +251,7 @@ public void onResume() {
             maybeRegisterOnEventBus(mService);
         }
 
-        if (inactivityHandler != null) {
-            setInactivityTimer();
-        }
+        setInactivityTimer(true);
 
         // If SqueezePlayer is installed, start it
         squeezePlayer = SqueezePlayer.maybeStartControllingSqueezePlayer(this);
@@ -223,17 +260,12 @@ public void onResume() {
         ImageFetcher.getInstance(this).setExitTasksEarly(false);
     }
 
-    private void setInactivityTimer() {
-        inactivityHandler.removeCallbacks(inactivityAction);
-        inactivityHandler.postDelayed(inactivityAction, INACTIVITY_TIME);
-    }
 
     @Override
     @CallSuper
     public void onPause() {
-        if (inactivityHandler != null) {
-            inactivityHandler.removeCallbacks(inactivityAction);
-        }
+        setInactivityTimer(false);
+        setNotplayingTimer(false);
 
         if (squeezePlayer != null) {
             squeezePlayer.stopControllingSqueezePlayer();
@@ -366,16 +398,19 @@ public void setNotifyVolumePanel(boolean notifyVolumePanel) {
         this.notifyVolumePanel = notifyVolumePanel;
     }
 
-    private static final int INACTIVITY_TIME = 5 * 60 * 1000;
-    Handler inactivityHandler;
-    Runnable inactivityAction;
 
     @Override
     public void onUserInteraction() {
         super.onUserInteraction();
 
-        if (inactivityHandler != null) {
-            setInactivityTimer();
+        setInactivityTimer(true);
+
+        if (notplayingHandler != null) {
+            // If playing is paused and there is some user interaction,
+            // the waiting time until screensaver comes is "charged up" again.
+            if (notplayingHandler.hasCallbacks(notplayingAction)) {
+                setNotplayingTimer(true);
+            }
         }
     }
 

Squeezer/src/main/java/uk/org/ngo/squeezer/itemlist/JiveItemListActivity.java

@@ -463,6 +463,11 @@ private void nextWindow(Action.NextWindow nextWindow, int alreadyPopped) {
             switch (nextWindow.nextWindow) {
                 case nowPlaying:
                     // Do nothing as now playing is always available in Squeezer (maybe toast the action)
+                    // only if set by special preference
+                    Preferences preferences = Squeezer.getPreferences();
+                    if (preferences.isNowPlayingSwitching()) {
+                        NowPlayingActivity.show(this);
+                    }
                     break;
                 case playlist:
                     CurrentPlaylistActivity.show(this);

Squeezer/src/main/java/uk/org/ngo/squeezer/screensaver/BlackScreensaver.java

@@ -0,0 +1,31 @@
+package uk.org.ngo.squeezer.screensaver;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+import android.view.WindowManager;
+
+
+public class BlackScreensaver extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        WindowManager.LayoutParams params = getWindow().getAttributes();
+        params.screenBrightness = 0;
+        params.flags &= ~ WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
+        getWindow().setAttributes(params);
+
+    }
+
+    @Override
+    public void onUserInteraction() {
+        super.onUserInteraction();
+        WindowManager.LayoutParams params = getWindow().getAttributes();
+        params.screenBrightness = -1;
+        params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
+        finish();
+    }
+
+}

Squeezer/src/main/res/values-de/strings.xml

@@ -257,9 +257,14 @@
     <string name="RANDOM_PLAY_STARTED">Zufallswiedergabe gestartet</string>
     <string name="minutes">Minuten</string>
     <string name="settings_screensaver_title">Display aktiviert lassen</string>
-    <string name="settings_screensaver_off">Nein</string>
-    <string name="settings_screensaver_on">Ja</string>
-    <string name="settings_screensaver_clock">Uhr zeigen bei Inaktivität</string>
+    <string name="settings_screensaver_off">bei Aktivität</string>
+    <string name="settings_screensaver_on">Immer</string>
+    <string name="settings_screensaver_clock">bei Aktivität, dann Uhr zeigen</string>
+    <string name="settings_screensaver_clock_whenNotPlaying">während abgespielt wird, dann Uhr zeigen</string>
+    <string name="settings_screensaver_off_whenNotPlaying">während abgespielt wird</string>
+    <string name="settings_switch_to_nowplaying_title">NowPlaying-Bildschirm Verhalten</string>
+    <string name="settings_switch_to_nowplaying_on">Immer auf NowPlaying wechseln wenn ein Item ausgewählt wurde</string>
+    <string name="settings_switch_to_nowplaying_off">Bildschirm nicht automatisch wechseln</string>
     <string name="settings_volume_title">Einstellungen für Lautstärkeregelung</string>
     <string name="settings_restore_after_call">Nach Beendigung wieder starten</string>
     <string name="call_state_permission_message">Bei einem Anruf kann Squeezer die Wiedergabe pausieren.</string>

Squeezer/src/main/res/values-fr/strings.xml

@@ -42,6 +42,9 @@
     <string name="settings_fadeinsecs_title">Temps d\'ouverture en fondu</string>
     <string name="settings_fadeinsecs_summary">Entrez la durée d\'ouverture en fondu, en secondes, quand en pause. Entrez 0 pour désactiver l\'ouverture en fondu.</string>
 
+    <string name="settings_switch_to_nowplaying_title">Comportement du vue NowPlaying</string>
+    <string name="settings_switch_to_nowplaying_on">Toujours alterner à la vue NowPlaying quand on a choisi un élément</string>
+    <string name="settings_switch_to_nowplaying_off">Pas alterner la vue</string>
     <string name="settings_scrobble_title">Faire du scrobble par Last.fm</string>
     <string name="settings_scrobble_on">Les informations sur le morceau sont envoyées à Last.fm</string>
     <string name="settings_scrobble_off">Les informations sur le morceau ne sont pas envoyées à Last.fm</string>

Squeezer/src/main/res/values/strings.xml

@@ -39,9 +39,14 @@
     <string name="settings_theme_dark">Dark</string>
     <string name="settings_theme_light_dark">Light, dark action bar</string>
     <string name="settings_screensaver_title">Keep screen on</string>
-    <string name="settings_screensaver_off">No</string>
-    <string name="settings_screensaver_on">Yes</string>
-    <string name="settings_screensaver_clock">Show clock when idle</string>
+    <string name="settings_screensaver_off">while active</string>
+    <string name="settings_screensaver_on">always</string>
+    <string name="settings_screensaver_clock">while active, then show clock</string>
+    <string name="settings_screensaver_clock_whenNotPlaying">while playing, then show clock</string>
+    <string name="settings_screensaver_off_whenNotPlaying">while playing</string>
+    <string name="settings_switch_to_nowplaying_title">NowPlaying screen behavior</string>
+    <string name="settings_switch_to_nowplaying_on">Always switch to NowPlaying screen when item has been chosen</string>
+    <string name="settings_switch_to_nowplaying_off">Remain on current screen</string>
     <string name="settings_add_composer_line">Show composer</string>
     <string name="settings_band_instead_album">Classical music information</string>
     <string name="settings_add_conductor_line">Show band and conductor</string>

Squeezer/src/main/res/xml/preferences.xml

@@ -40,6 +40,12 @@
             android:title="@string/settings_theme_title"
             android:summary="%s"/>
 
+        <SwitchPreferenceCompat
+            android:key="squeezer.always_to_nowplaying"
+            android:summaryOff="@string/settings_switch_to_nowplaying_off"
+            android:summaryOn="@string/settings_switch_to_nowplaying_on"
+            android:title="@string/settings_switch_to_nowplaying_title"/>
+
         <ListPreference
             android:key="squeezer.screensaver"
             android:title="@string/settings_screensaver_title"