From 9f3ed2456946870aa23c1f996cd5d59d59c381f1 Mon Sep 17 00:00:00 2001
From: Lukas Pieper <30661176+lukaspieper@users.noreply.github.com>
Date: Fri, 1 Oct 2021 15:56:40 +0200
Subject: [PATCH] Add support for photo preview button

Inspired by the solution from Calyx: https://gitlab.com/CalyxOS/platform_external_calyx_GCamPhotosPreview
---
 .github/workflows/continuous.yml              | 16 +++++++---
 app/build.gradle                              | 14 ++++++---
 app/src/main/AndroidManifest.xml              | 31 ++++++++++++++++++-
 .../gcam/{services => }/GServicesProvider.kt  |  2 +-
 .../gcam/PreviewRedirectActivity.kt           | 24 ++++++++++++++
 5 files changed, 75 insertions(+), 12 deletions(-)
 rename app/src/main/java/de/lukaspieper/gcam/{services => }/GServicesProvider.kt (97%)
 create mode 100644 app/src/main/java/de/lukaspieper/gcam/PreviewRedirectActivity.kt

diff --git a/.github/workflows/continuous.yml b/.github/workflows/continuous.yml
index f7a293e..5f8f99a 100644
--- a/.github/workflows/continuous.yml
+++ b/.github/workflows/continuous.yml
@@ -7,14 +7,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+
     - name: set up JDK 11
       uses: actions/setup-java@v1
       with:
         java-version: '11'
-    - name: Build Debug APK with Gradle
-      run: ./gradlew assembleDebug
-    - name: Upload APK
+
+    - name: Build basic APK with Gradle
+      run: ./gradlew assembleBasicDebug
+
+    - name: Build photos APK with Gradle
+      run: ./gradlew assemblePhotosDebug
+
+    - name: Upload APKs
       uses: actions/upload-artifact@v2
       with:
-        name: App
-        path: ${{ github.workspace }}/app/build/outputs/apk/debug/app-debug.apk
+        name: APKs
+        path: ${{ github.workspace }}/app/build/outputs/apk/**/debug/*.apk
diff --git a/app/build.gradle b/app/build.gradle
index 3757dcf..b483c3c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -11,13 +11,17 @@ android {
         versionName "1.2"
     }
 
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+    flavorDimensions 'default'
+    productFlavors {
+        basic {
+            dimension 'default'
+            applicationId 'de.lukaspieper.gcam.services'
+        }
+        photos {
+            dimension 'default'
+            applicationId 'com.google.android.apps.photos'
         }
     }
-
 }
 
 dependencies {
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 50e236f..04c5a28 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,13 +9,42 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
+        android:theme="@android:style/Theme.NoDisplay"
         tools:targetApi="30">
 
         <provider
-            android:name="com.google.android.gms.GServicesProvider"
+            android:name="de.lukaspieper.gcam.GServicesProvider"
             android:authorities="com.google.android.gsf.gservices"
             android:exported="true"
             tools:ignore="ExportedContentProvider" />
 
+        <activity
+            android:name="de.lukaspieper.gcam.PreviewRedirectActivity"
+            android:exported="true">
+
+            <!-- Credits to Calyx developers: -->
+            <!-- https://gitlab.com/CalyxOS/platform_external_calyx_GCamPhotosPreview -->
+            <intent-filter>
+                <action android:name="com.android.camera.action.REVIEW" />
+                <action android:name="android.provider.action.REVIEW" />
+                <action android:name="android.provider.action.REVIEW_SECURE" />
+                <action android:name="com.google.android.apps.photos.mars.api.ACTION_REVIEW" />
+                <action android:name="com.google.android.apps.photos.mars.api.ACTION_REVIEW_SECURE" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+
+                <data android:scheme="content" />
+
+                <data android:mimeType="image/*" />
+                <data android:mimeType="application/vnd.google.panorama360+jpg" />
+            </intent-filter>
+
+            <!-- Needed only so GCam can query for and find us -->
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <data android:mimeType="image/*" />
+            </intent-filter>
+        </activity>
+
     </application>
 </manifest>
diff --git a/app/src/main/java/de/lukaspieper/gcam/services/GServicesProvider.kt b/app/src/main/java/de/lukaspieper/gcam/GServicesProvider.kt
similarity index 97%
rename from app/src/main/java/de/lukaspieper/gcam/services/GServicesProvider.kt
rename to app/src/main/java/de/lukaspieper/gcam/GServicesProvider.kt
index 604c3eb..01841d2 100644
--- a/app/src/main/java/de/lukaspieper/gcam/services/GServicesProvider.kt
+++ b/app/src/main/java/de/lukaspieper/gcam/GServicesProvider.kt
@@ -1,4 +1,4 @@
-package com.google.android.gms
+package de.lukaspieper.gcam
 
 import android.content.ContentProvider
 import android.content.ContentValues
diff --git a/app/src/main/java/de/lukaspieper/gcam/PreviewRedirectActivity.kt b/app/src/main/java/de/lukaspieper/gcam/PreviewRedirectActivity.kt
new file mode 100644
index 0000000..ad57bb5
--- /dev/null
+++ b/app/src/main/java/de/lukaspieper/gcam/PreviewRedirectActivity.kt
@@ -0,0 +1,24 @@
+package de.lukaspieper.gcam
+
+import android.app.Activity
+import android.os.Bundle
+import android.util.Log
+import android.content.Intent
+
+class PreviewRedirectActivity : Activity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        Log.d(javaClass.simpleName, intent.toString())
+
+        if (intent.`package` == packageName) {
+            intent.data?.let { uri ->
+                val intent = Intent(Intent.ACTION_VIEW, uri)
+                startActivity(intent)
+            }
+        }
+
+        finish()
+    }
+}