From 1bb803ef0a8a62f1948de97331d0c6f122430c3d Mon Sep 17 00:00:00 2001
From: Sylvia van Os <sylvia@hackerchick.me>
Date: Fri, 14 Apr 2023 21:14:37 +0200
Subject: [PATCH] Add donation link on non-Google installs

Inspired by https://git.zx2c4.com/wireguard-android/commit/?id=dc1860c74dd67e18a66fe9e243eeffa689bef043
---
 .../protect/card_locker/AboutActivity.java    | 10 +++++++
 .../main/java/protect/card_locker/Utils.java  | 15 ++++++++++
 app/src/main/res/layout/about_activity.xml    | 30 +++++++++++++++++++
 app/src/main/res/values/strings.xml           |  1 +
 4 files changed, 56 insertions(+)

diff --git a/app/src/main/java/protect/card_locker/AboutActivity.java b/app/src/main/java/protect/card_locker/AboutActivity.java
index f7adc5dac..6decf1a22 100644
--- a/app/src/main/java/protect/card_locker/AboutActivity.java
+++ b/app/src/main/java/protect/card_locker/AboutActivity.java
@@ -39,6 +39,13 @@ public class AboutActivity extends CatimaAppCompatActivity {
         binding.privacy.setTag("https://catima.app/privacy-policy/");
         binding.reportError.setTag("https://github.com/CatimaLoyalty/Android/issues");
         binding.rate.setTag("https://play.google.com/store/apps/details?id=me.hackerchick.catima");
+        binding.donate.setTag("https://catima.app/contribute/#donating");
+
+        boolean installedFromGooglePlay = Utils.installedFromGooglePlay(this);
+        // Hide Google Play rate button if not on Google Play
+        binding.rate.setVisibility(installedFromGooglePlay ? View.VISIBLE : View.GONE);
+        // Hide donate button on Google Play (Google Play doesn't allow donation links)
+        binding.donate.setVisibility(installedFromGooglePlay ? View.GONE : View.VISIBLE);
 
         bindClickListeners();
     }
@@ -74,6 +81,7 @@ public class AboutActivity extends CatimaAppCompatActivity {
         binding.privacy.setOnClickListener(openExternalBrowser);
         binding.reportError.setOnClickListener(openExternalBrowser);
         binding.rate.setOnClickListener(openExternalBrowser);
+        binding.donate.setOnClickListener(openExternalBrowser);
 
         binding.credits.setOnClickListener(view -> showCredits());
     }
@@ -86,6 +94,8 @@ public class AboutActivity extends CatimaAppCompatActivity {
         binding.privacy.setOnClickListener(null);
         binding.reportError.setOnClickListener(null);
         binding.rate.setOnClickListener(null);
+        binding.donate.setOnClickListener(null);
+
         binding.credits.setOnClickListener(null);
     }
 
diff --git a/app/src/main/java/protect/card_locker/Utils.java b/app/src/main/java/protect/card_locker/Utils.java
index e99873707..024e0ea6e 100644
--- a/app/src/main/java/protect/card_locker/Utils.java
+++ b/app/src/main/java/protect/card_locker/Utils.java
@@ -622,4 +622,19 @@ public class Utils {
             textWhenNoImage.setTextColor(Utils.needsDarkForeground(headerColor) ? Color.BLACK : Color.WHITE);
         }
     }
+
+    public static boolean installedFromGooglePlay(Context context) {
+        try {
+            String packageName = context.getPackageName();
+            String installer;
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                installer = context.getPackageManager().getInstallSourceInfo(packageName).getInstallingPackageName();
+            } else {
+                installer = context.getPackageManager().getInstallerPackageName(packageName);
+            }
+            return installer.equals("com.android.vending");
+        } catch (Throwable ignored) {
+            return false;
+        }
+    }
 }
diff --git a/app/src/main/res/layout/about_activity.xml b/app/src/main/res/layout/about_activity.xml
index f5a05fe34..c01d03046 100644
--- a/app/src/main/res/layout/about_activity.xml
+++ b/app/src/main/res/layout/about_activity.xml
@@ -271,6 +271,36 @@
                     app:layout_constraintTop_toTopOf="parent" />
             </androidx.constraintlayout.widget.ConstraintLayout>
 
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:id="@+id/donate"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="8dp">
+
+                <TextView
+                    android:id="@+id/donate_main"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:fontFamily="sans-serif-medium"
+                    android:padding="2dp"
+                    android:text="@string/donate"
+                    android:textSize="18sp"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+
+                <TextView
+                    android:importantForAccessibility="no"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="8dp"
+                    android:fontFamily="sans-serif-medium"
+                    android:text="@string/arrow"
+                    android:textSize="20sp"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+            </androidx.constraintlayout.widget.ConstraintLayout>
+
             <androidx.constraintlayout.widget.ConstraintLayout
                 android:id="@+id/rate"
                 android:layout_width="match_parent"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 5dd2c4500..a3ae002a2 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -321,4 +321,5 @@
     <string name="openFrontImageInGalleryApp">Open front image in gallery app</string>
     <string name="openBackImageInGalleryApp">Open back image in gallery app</string>
     <string name="setBarcodeHeight">Set barcode height</string>
+    <string name="donate">Donate</string>
 </resources>