Rename QEScanAbleFragment to QRScanCapableFragment

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / QRScanCapableFragment.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/QRScanCapableFragment.java b/app/src/main/java/net/ktnx/mobileledger/ui/QRScanCapableFragment.java
new file mode 100644 (file)
index 0000000..a23a402
--- /dev/null
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/QRScanCapableFragment.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright © 2021 Damyan Ivanov.
+ * This file is part of MoLe.
+ * MoLe is free software: you can distribute it and/or modify it
+ * under the term of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your opinion), any later version.
+ *
+ * MoLe is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License terms for details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.ktnx.mobileledger.ui;
+
+import android.content.Context;
+
+import androidx.activity.result.ActivityResultLauncher;
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.MutableLiveData;
+
+public abstract class QRScanCapableFragment extends Fragment {
+    private static final MutableLiveData<Integer> qrScanTrigger = new MutableLiveData<>();
+    protected final ActivityResultLauncher<Void> scanQrLauncher = QR.registerLauncher(this, this::onQrScanned);
+    public static void triggerQRScan() {
+        qrScanTrigger.setValue(1);
+    }
+    protected abstract void onQrScanned(String text);
+    @Override
+    public void onAttach(@NonNull Context context) {
+        super.onAttach(context);
+        qrScanTrigger.observe(this, ignored -> {
+            scanQrLauncher.launch(null);
+        });
+    }
+}