1 files changed, 135 insertions, 0 deletions
diff --git a/app/src/main/java/mygram/droid/SplashActivity.java b/app/src/main/java/mygram/droid/SplashActivity.java
new file mode 100644
index 0000000..ed94488
--- /dev/null
+++ b/app/src/main/java/mygram/droid/SplashActivity.java
@@ -0,0 +1,135 @@
+/*
+ * mygram-droid: Android TV client for Foldergram.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program 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
+ * for more details.
+ */
+
+package mygram.droid;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.text.InputType;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import org.json.JSONObject;
+
+/**
+ * Gate shown on every start and return to the app: the PIN prompt when a PIN
+ * is set, then a wait while Foldergram indexes, which makes it unusably slow.
+ */
+public final class SplashActivity extends Activity {
+	private static final long POLL_MS = 5000;
+	private final Handler handler = new Handler(Looper.getMainLooper());
+	private final Runnable poll = this::checkScan;
+	private LinearLayout box;
+	private TextView status;
+
+	@Override
+	protected void onCreate(Bundle state) {
+		super.onCreate(state);
+		box = Ui.column(this);
+		ImageView logo = new ImageView(this);
+		logo.setImageResource(R.drawable.ic_launcher);
+		logo.setContentDescription("mygram");
+		int s = Ui.dp(this, 96);
+		LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(s, s);
+		lp.bottomMargin = Ui.dp(this, 24);
+		box.addView(logo, lp);
+		setContentView(box);
+		if (Prefs.hasPin())
+			askPin();
+		else
+			checkScan();
+	}
+
+	private void askPin() {
+		EditText pin = Ui.field(this, "PIN", InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_PASSWORD);
+		box.addView(pin);
+		View ok = Ui.iconButton(this, R.drawable.ic_check, "Unlock", v -> {
+			if (Prefs.checkPin(pin.getText().toString())) {
+				box.removeViews(1, box.getChildCount() - 1);
+				checkScan();
+			} else {
+				pin.setText("");
+				Toast.makeText(this, "Wrong PIN", Toast.LENGTH_SHORT).show();
+			}
+		});
+		box.addView(ok);
+		// The keyboard's done key unlocks; the D-pad cannot leave the keyboard.
+		pin.setOnEditorActionListener((v, action, event) -> ok.performClick());
+		pin.requestFocus();
+	}
+
+	/** Waits while the library is being indexed; lets the user in once it is idle. */
+	private void checkScan() {
+		if (Prefs.server() == null) { // first run: setup comes next
+			done();
+			return;
+		}
+		Api.async(() -> Api.call("GET", "/scan-progress"), o -> {
+			if (isDestroyed())
+				return;
+			if (!o.optBoolean("isScanning")) {
+				done();
+				return;
+			}
+			showScan(o);
+			handler.postDelayed(poll, POLL_MS);
+		}, e -> {
+			if (isDestroyed())
+				return;
+			if (status == null)
+				done(); // unreachable at the first check: Home reports it with Retry
+			else
+				handler.postDelayed(poll, POLL_MS); // mid-scan the server is slow; keep waiting
+		});
+	}
+
+	private void showScan(JSONObject o) {
+		if (status == null) {
+			box.addView(new ProgressBar(this));
+			box.addView(Ui.text(this, "Library is indexing", 24));
+			status = Ui.text(this, "", 16);
+			box.addView(status);
+		}
+		String msg = Post.str(o, "currentPhaseMessage");
+		if (msg == null)
+			msg = o.optString("phase");
+		int done = o.optInt("processedDerivativeJobs"), total = o.optInt("queuedDerivativeJobs");
+		status.setText(total > 0 ? msg + "  " + done + " / " + total : msg);
+	}
+
+	private void done() {
+		App.locked = false;
+		finish();
+	}
+
+	/** Back leaves the app instead of revealing the screen underneath. */
+	@Override
+	@SuppressWarnings("deprecation") // no predictive back on this TV; onBackPressed still fires
+	public void onBackPressed() {
+		finishAffinity();
+	}
+
+	@Override
+	protected void onDestroy() {
+		super.onDestroy();
+		handler.removeCallbacksAndMessages(null);
+	}
+}