add VncFlingerJava

VncFlingerJava/.gitignore

+*.iml
+.idea

VncFlingerJava/Android.bp

+/*
+ * Copyright (C) 2019-2021 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.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+android_app {
+    name: "VncFlingerJava",
+
+    srcs: ["src/**/*.java"],
+    resource_dirs: ["res"],
+
+    manifest: "AndroidManifest.xml",
+
+    platform_apis: true,
+    certificate: "platform",
+    system_ext_specific: true,
+    privileged: true,
+
+    optimize: {
+        proguard_flags_files: ["proguard.flags"],
+    },
+
+    required: [
+        "privapp_whitelist_org.eu.droid_ng.vncflinger"
+    ],
+}
+
+prebuilt_etc {
+    name: "privapp_whitelist_org.eu.droid_ng.vncflinger",
+    system_ext_specific: true,
+    sub_dir: "permissions",
+    src: "privapp_whitelist_org.eu.droid_ng.vncflinger.xml",
+    filename_from_src: true,
+}

VncFlingerJava/AndroidManifest.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright 2022, droid-ng
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:androidprv="http://schemas.android.com/apk/prv/res/android"
+    package="org.eu.droid_ng.vncflinger"
+    android:versionCode="1"
+    android:versionName="1.0"
+    android:sharedUserId="android.uid.system">
+
+    <uses-sdk android:minSdkVersion="27" android:targetSdkVersion="27" />
+
+    <application android:label="@string/app_name"
+            android:hardwareAccelerated="true"
+            android:supportsRtl="true">
+
+        <service android:name=".VncFlingerJava" android:exported="true" />
+
+    </application>
+</manifest>

VncFlingerJava/privapp_whitelist_org.eu.droid_ng.vncflinger.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2017-2020 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.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<permissions>
+    <privapp-permissions package="org.eu.droid_ng.ngparts">
+        <permission name="android.permission.CHANGE_CONFIGURATION"/>
+        <permission name="android.permission.READ_SEARCH_INDEXABLES"/>
+        <permission name="android.permission.WRITE_MEDIA_STORAGE"/>
+        <permission name="android.permission.WRITE_SECURE_SETTINGS"/>
+        <permission name="android.permission.GRANT_RUNTIME_PERMISSIONS"/>
+    </privapp-permissions>
+</permissions>

VncFlingerJava/res/values/strings.xml

+<resources>
+    <string name="app_name">VncFlingerJava</string>
+</resources>

VncFlingerJava/src/org/eu/droid_ng/vncflinger/VncFlingerJava.java

+/*
+ * Copyright (C) 2022 droid-ng
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.eu.droid_ng.vncflinger;
+
+import static android.hardware.display.DisplayManager.*;
+
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.graphics.SurfaceTexture;
+import android.hardware.display.DisplayManager;
+import android.hardware.display.VirtualDisplay;
+import android.os.IBinder;
+import android.os.SystemProperties;
+import android.util.Log;
+import android.view.Surface;
+
+public class VncFlingerJava extends Service {
+    private static final String TAG = "VncFlingerJava";
+    private SurfaceTexture t;
+    private Surface s;
+    private VirtualDisplay vd;
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        super.onStartCommand(intent, flags, startId);
+
+        Log.i(TAG, "Creating...");
+        int w = intent.getIntExtra("width", -1);
+        int h = intent.getIntExtra("height", -1);
+        int dpi = intent.getIntExtra("dpi", -1);
+        boolean touch = intent.getBooleanExtra("touch", false);
+        boolean relativeInput = intent.getBooleanExtra("useRelativeInput", false);
+
+        if (w < 0 || h < 0 || dpi < 0) {
+            throw new IllegalStateException("invalid extras");
+        }
+
+        // Step 1: create dummy surface which should do nothing i hope
+        t = new SurfaceTexture(false);
+        s = new Surface(t);
+
+        // Step 2: make the virtual display
+        DisplayManager dm = (DisplayManager) getApplicationContext().getSystemService(Context.DISPLAY_SERVICE);
+        vd = dm.createVirtualDisplay("VncFlingerJava", w, h, dpi, s, VIRTUAL_DISPLAY_FLAG_SECURE | VIRTUAL_DISPLAY_FLAG_PUBLIC | VIRTUAL_DISPLAY_FLAG_TRUSTED | VIRTUAL_DISPLAY_FLAG_SUPPORTS_TOUCH | VIRTUAL_DISPLAY_FLAG_SHOULD_SHOW_SYSTEM_DECORATIONS);
+        Log.i(TAG, "created " + vd.getDisplay().getDisplayId() + " " + w + "x" + h + " " + dpi + "dpi display rotated " + vd.getDisplay().getRotation());
+
+        // Step 3: set props
+        SystemProperties.set("sys.vnc.layer_id", String.valueOf(vd.getDisplay().getDisplayId()));
+        SystemProperties.set("sys.vnc.width", String.valueOf(w));
+        SystemProperties.set("sys.vnc.height", String.valueOf(h));
+        SystemProperties.set("sys.vnc.rotation", String.valueOf(vd.getDisplay().getRotation() * 90));
+        SystemProperties.set("sys.vnc.touch", String.valueOf(touch ? 1 : 0));
+        SystemProperties.set("sys.vnc.relative_input", String.valueOf(relativeInput ? 1 : 0));
+
+        SystemProperties.set("sys.vnc.enable", "true");
+
+        return START_STICKY;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+
+        SystemProperties.set("sys.vnc.enable", "false");
+
+        Log.i(TAG, "Destroying...");
+        vd.release();
+        s.release();
+        t.release();
+
+        SystemProperties.set("sys.vnc.layer_id", String.valueOf(-1));
+        SystemProperties.set("sys.vnc.width", String.valueOf(-1));
+        SystemProperties.set("sys.vnc.height", String.valueOf(-1));
+        SystemProperties.set("sys.vnc.rotation", String.valueOf(-1));
+        SystemProperties.set("sys.vnc.touch", String.valueOf(0));
+        SystemProperties.set("sys.vnc.relative_input", String.valueOf(0));
+    }
+}

product.mk

@@ -3,4 +3,5 @@ SYSTEM_EXT_PRIVATE_SEPOLICY_DIRS += \
 
 PRODUCT_PACKAGES += \
     vncflinger \
-    vncpasswd
+    vncpasswd \
+    VncFlingerJava