Snap: quickreader: Don't allow insecure actions

* In order to not allow any app to start in the background or website
  to be opened, do not allow click actions on quickreader when the
  device is locked

Fixes: https://gitlab.com/LineageOS/issues/android/-/issues/1747
Change-Id: I75486dfb4468405356172c6da51abfca733ec541

2 files changed, 21 insertions, 4 deletions

diff --git a/quickReader/res/values/strings.xml b/quickReader/res/values/strings.xml
index 897483115..8633b7c73 100644
--- a/quickReader/res/values/strings.xml
+++ b/quickReader/res/values/strings.xml
@@ -47,4 +47,7 @@
     <string name="quick_reader_share_title">Share with\u2026</string>
     <!-- QuickReader: toast shown when the scanned text has been copied to the clipboard -->
     <string name="quick_reader_copied_message">Copied to clipboard</string>
+
+    <!-- QuickReader: Action is only allowed when performed unlocked -->
+    <string name="quick_reader_only_unlocked">This action can only be performed with the device unlocked</string>
 </resources>
diff --git a/quickReader/src/org/lineageos/quickreader/ScannerActivity.java b/quickReader/src/org/lineageos/quickreader/ScannerActivity.java
index 7ee6be2c6..e07cd584c 100644
--- a/quickReader/src/org/lineageos/quickreader/ScannerActivity.java
+++ b/quickReader/src/org/lineageos/quickreader/ScannerActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 The LineageOS Project
+ * Copyright (C) 2019-2020 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -74,7 +74,8 @@ public class ScannerActivity extends Activity implements ZXingScannerView.Result
         super.onCreate(savedInstance);
 
         Intent intent = getIntent();
-        if (intent.getBooleanExtra(SECURE_CAMERA_EXTRA, false)) {
+        final boolean isSecure = intent.getBooleanExtra(SECURE_CAMERA_EXTRA, false);
+        if (isSecure) {
             // Change the window flags so that secure camera can show when locked
             Window win = getWindow();
             WindowManager.LayoutParams params = win.getAttributes();
@@ -90,7 +91,13 @@ public class ScannerActivity extends Activity implements ZXingScannerView.Result
         mFlashIcon = (ImageView) findViewById(R.id.action_flash);
         ImageView closeIcon = (ImageView) findViewById(R.id.action_close);
 
-        mIdentifyLayout.setOnClickListener(v -> sHelper.run(this));
+        mIdentifyLayout.setOnClickListener(v -> {
+            if (isSecure) {
+                showClickErrorDialog();
+            } else {
+                sHelper.run(this);
+            }
+        });
         mFlashIcon.setOnClickListener(v -> toggleFlash());
         closeIcon.setOnClickListener(v -> finish());
 
@@ -208,6 +215,13 @@ public class ScannerActivity extends Activity implements ZXingScannerView.Result
                 .show();
     }
 
+    private void showClickErrorDialog() {
+        new AlertDialog.Builder(this)
+                .setMessage(R.string.quick_reader_only_unlocked)
+                .setPositiveButton(R.string.quick_reader_action_dismiss, null)
+                .show();
+    }
+
     private void postAnalyze(int result) {
         if (result == 0 || !sHelper.isValid()) {
             return;
@@ -331,4 +345,4 @@ public class ScannerActivity extends Activity implements ZXingScannerView.Result
             return null;
         }
     }
-}
\ No newline at end of file
+}