Cards on power screen

2026-04-04 23:53:51 -04:00 · 2021-08-31 18:58:48 +02:00
parent ba5cf81bb4
commit ab1e6eed0c
2 changed files with 128 additions and 0 deletions
--- a/app/src/main/java/protect/card_locker/CardsOnPowerScreenService.java
+++ b/app/src/main/java/protect/card_locker/CardsOnPowerScreenService.java
@@ -0,0 +1,121 @@
+package protect.card_locker;
+
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.database.Cursor;
+import android.graphics.drawable.Icon;
+import android.os.Build;
+import android.service.controls.Control;
+import android.service.controls.ControlsProviderService;
+import android.service.controls.DeviceTypes;
+import android.service.controls.actions.ControlAction;
+import android.service.controls.templates.StatelessTemplate;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresApi;
+
+import java.util.List;
+import java.util.concurrent.Flow;
+import java.util.function.Consumer;
+
+@RequiresApi(Build.VERSION_CODES.R)
+public class CardsOnPowerScreenService extends ControlsProviderService {
+
+    public static final String PREFIX = "catima-";
+    static final String TAG = "Catima";
+    private final DBHelper dbHelper = new DBHelper(this);
+
+    @NonNull
+    @Override
+    public Flow.Publisher<Control> createPublisherForAllAvailable() {
+        Cursor loyaltyCardCursor = dbHelper.getLoyaltyCardCursor();
+        return subscriber -> {
+            while (loyaltyCardCursor.moveToNext()) {
+                LoyaltyCard card = LoyaltyCard.toLoyaltyCard(loyaltyCardCursor);
+                Intent openIntent = new Intent(this, LoyaltyCardViewActivity.class)
+                        .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                        .putExtra("id", card.id);
+                PendingIntent pendingIntent = PendingIntent.getActivity(getBaseContext(), card.id, openIntent, PendingIntent.FLAG_IMMUTABLE);
+                subscriber.onNext(
+                        new Control.StatelessBuilder(PREFIX + card.id, pendingIntent)
+                                .setControlId(PREFIX + card.id)
+                                .setTitle(card.store)
+                                .setDeviceType(DeviceTypes.TYPE_GENERIC_OPEN_CLOSE)
+                                .setSubtitle(card.note)
+                                .setCustomIcon(Icon.createWithBitmap(Utils.generateIcon(this, card.store, card.headerColor).getLetterTile()))
+                                .build()
+                );
+            }
+            subscriber.onComplete();
+        };
+    }
+
+    @NonNull
+    @Override
+    public Flow.Publisher<Control> createPublisherFor(@NonNull List<String> controlIds) {
+        return subscriber -> {
+            subscriber.onSubscribe(new NoOpSubscription());
+            for (String controlId : controlIds) {
+                Integer cardId = this.controlIdToCardId(controlId);
+                if (cardId == null)
+                    continue;
+                LoyaltyCard card = dbHelper.getLoyaltyCard(cardId);
+                Intent openIntent = new Intent(this, LoyaltyCardViewActivity.class)
+                        .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                        .putExtra("id", card.id);
+                PendingIntent pendingIntent = PendingIntent.getActivity(getBaseContext(), card.id, openIntent, PendingIntent.FLAG_IMMUTABLE);
+                var ret = new Control.StatefulBuilder(controlId, pendingIntent)
+                        .setTitle(card.store)
+                        .setDeviceType(DeviceTypes.TYPE_GENERIC_OPEN_CLOSE)
+                        .setSubtitle(card.note)
+                        .setStatus(Control.STATUS_OK)
+                        .setControlTemplate(new StatelessTemplate(controlId))
+                        .setCustomIcon(Icon.createWithBitmap(Utils.generateIcon(this, card.store, card.headerColor).getLetterTile()))
+                        .build();
+                Log.d(TAG, "Dispatching widget " + controlId);
+                subscriber.onNext(ret);
+            }
+            subscriber.onComplete();
+        };
+    }
+
+    private Integer controlIdToCardId(String controlId) {
+        if (controlId == null)
+            return null;
+        if (!controlId.startsWith(PREFIX)) {
+            Log.w(TAG, "Unsupported control ID format: " + controlId);
+            return null;
+        }
+        controlId = controlId.substring(PREFIX.length());
+        try {
+            return Integer.parseInt(controlId);
+        } catch (RuntimeException ex) {
+            Log.e(TAG, "Unsupported control ID format. Expected numeric after prefix, found: " + controlId);
+            return null;
+        }
+    }
+
+    @Override
+    public void performControlAction(@NonNull String controlId, @NonNull ControlAction action, @NonNull Consumer<Integer> consumer) {
+        consumer.accept(ControlAction.RESPONSE_OK);
+    }
+
+    /**
+     * A no-op subscription.
+     * <p>
+     * Flow.Subscriptions are made to last during time and receive periodic updates.
+     * Our app does not require sending periodic updates of loyalty cards, so we are just ignoring anything in the subscription
+     * Also, our db is quick enough to respond that the Publisher is immediately sending and completing data.
+     * This facility is overkill, but if we don't call onSubscribe the service won't work
+     */
+    private static class NoOpSubscription implements Flow.Subscription {
+        @Override
+        public void request(long l) {
+        }
+
+        @Override
+        public void cancel() {
+        }
+    }
+}