From a331b1e3f1081ecc54e03ff83f705e9200cdcfe7 Mon Sep 17 00:00:00 2001
From: Albert Vaca Cintora <albertvaka@gmail.com>
Date: Sun, 18 Oct 2020 14:49:59 +0200
Subject: [PATCH] WIP Power plugin

---
 AndroidManifest.xml                           |   8 ++
 build.gradle                                  |   4 +-
 res/layout/activity_power.xml                 |  43 +++++++
 res/values/strings.xml                        |   5 +
 .../Plugins/PowerPlugin/PowerActivity.java    |  54 +++++++++
 .../PowerPlugin/PowerControlsService.java     | 106 ++++++++++++++++++
 .../Plugins/PowerPlugin/PowerPlugin.java      |  81 +++++++++++++
 .../PowerPlugin/PowerPluginsSingleton.java    |  22 ++++
 8 files changed, 322 insertions(+), 1 deletion(-)
 create mode 100644 res/layout/activity_power.xml
 create mode 100644 src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerActivity.java
 create mode 100644 src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerControlsService.java
 create mode 100644 src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerPlugin.java
 create mode 100644 src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerPluginsSingleton.java

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 3e21a813..74d4549b 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -114,6 +114,14 @@
             </intent-filter>
         </service>
 
+        <!-- New signature permission to ensure only systemui can bind to these services -->
+        <service android:name="org.kde.kdeconnect.Plugins.PowerPlugin.PowerControlsService" android:label="@string/kde_connect"
+            android:permission="android.permission.BIND_CONTROLS">
+            <intent-filter>
+                <action android:name="android.service.controls.ControlsProviderService" />
+            </intent-filter>
+        </service>
+
         <service
             android:name="com.android.mms.transaction.TransactionService"
             android:enabled="true"
diff --git a/build.gradle b/build.gradle
index 16965a31..3db79da8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,7 +18,7 @@ buildscript {
 }
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
     defaultConfig {
         minSdkVersion 14
         targetSdkVersion 29
@@ -167,6 +167,8 @@ dependencies {
     implementation 'com.google.android.material:material:1.2.1'
     implementation 'com.jakewharton:disklrucache:2.0.2' //For caching album art bitmaps
     implementation 'com.jaredrummler:android-device-names:1.1.9' //To get a human-friendly device name
+    implementation 'org.reactivestreams:reactive-streams:1.0.3'
+    implementation 'io.reactivex.rxjava2:rxjava:2.2.0'
 
     implementation 'org.apache.sshd:sshd-core:0.14.0'
     implementation 'org.apache.mina:mina-core:2.0.19' //For some reason, makes sshd-core:0.14.0 work without NIO, which isn't available until Android 8 (api 26)
diff --git a/res/layout/activity_power.xml b/res/layout/activity_power.xml
new file mode 100644
index 00000000..e2f251fe
--- /dev/null
+++ b/res/layout/activity_power.xml
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+
+    <Button
+        android:id="@+id/shutdown"
+        android:layout_width="fill_parent"
+        android:layout_height="75dp"
+        android:layout_gravity="center"
+        android:adjustViewBounds="false"
+        android:baselineAlignBottom="true"
+        android:clickable="false"
+        android:text="@string/power_shutdown"
+        android:theme="@style/DisableableButton" />
+
+    <Button
+        android:id="@+id/suspend"
+        android:layout_width="fill_parent"
+        android:layout_height="75dp"
+        android:layout_gravity="center"
+        android:adjustViewBounds="false"
+        android:baselineAlignBottom="true"
+        android:clickable="false"
+        android:text="@string/power_suspend"
+        android:theme="@style/DisableableButton" />
+
+    <Button
+        android:id="@+id/lock"
+        android:layout_width="fill_parent"
+        android:layout_height="75dp"
+        android:layout_gravity="center"
+        android:adjustViewBounds="false"
+        android:baselineAlignBottom="true"
+        android:clickable="false"
+        android:text="@string/power_lock"
+        android:theme="@style/DisableableButton" />
+
+
+</LinearLayout>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 0503030a..54dbd3dd 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -29,6 +29,8 @@
     <string name="pref_plugin_mpris_desc">Provides a remote control for your media player</string>
     <string name="pref_plugin_runcommand">Run Command</string>
     <string name="pref_plugin_runcommand_desc">Trigger remote commands from your phone or tablet</string>
+    <string name="pref_plugin_power">Power</string>
+    <string name="pref_plugin_power_desc">Power off, lock or suspend your device</string>
     <string name="pref_plugin_contacts">Contacts Synchronizer</string>
     <string name="pref_plugin_contacts_desc">Allow synchronizing the device\'s contacts book</string>
     <string name="pref_plugin_ping">Ping</string>
@@ -183,6 +185,9 @@
     <string name="mpris_time_settings_title">Forward/rewind buttons</string>
     <string name="mpris_time_settings_summary">Adjust the time to fast forward/rewind when pressed</string>
     <string name="mpris_time_key" translatable="false">mpris_interval_time</string>
+    <string name="power_shutdown">Shutdown</string>
+    <string name="power_suspend">Suspend</string>
+    <string name="power_lock">Lock screen</string>
     <string-array name="mpris_time_entries">
         <item>10 seconds</item>
         <item>20 seconds</item>
diff --git a/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerActivity.java b/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerActivity.java
new file mode 100644
index 00000000..e03cd1a5
--- /dev/null
+++ b/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerActivity.java
@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Albert Vaca Cintora <albertvaka@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+ */
+
+package org.kde.kdeconnect.Plugins.PowerPlugin;
+
+import android.os.Bundle;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import org.kde.kdeconnect.BackgroundService;
+import org.kde.kdeconnect.UserInterface.ThemeUtil;
+import org.kde.kdeconnect_tp.databinding.ActivityPowerBinding;
+
+public class PowerActivity extends AppCompatActivity {
+    private String deviceId;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        ThemeUtil.setUserPreferredTheme(this);
+
+        ActivityPowerBinding binding = ActivityPowerBinding.inflate(getLayoutInflater());
+        setContentView(binding.getRoot());
+
+        deviceId = getIntent().getStringExtra("deviceId");
+
+        binding.shutdown.setOnClickListener(
+            v -> BackgroundService.RunWithPlugin(PowerActivity.this, deviceId, PowerPlugin.class, plugin ->
+                {
+                    plugin.sendCommand("shutdown");
+                }
+            )
+        );
+
+        binding.suspend.setOnClickListener(
+            v -> BackgroundService.RunWithPlugin(PowerActivity.this, deviceId, PowerPlugin.class, plugin ->
+                {
+                    plugin.sendCommand("suspend");
+                }
+            )
+        );
+
+        binding.lock.setOnClickListener(
+            v -> BackgroundService.RunWithPlugin(PowerActivity.this, deviceId, PowerPlugin.class, plugin ->
+                {
+                    plugin.sendCommand("lock");
+                }
+            )
+        );
+    }
+}
diff --git a/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerControlsService.java b/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerControlsService.java
new file mode 100644
index 00000000..f0e8df1b
--- /dev/null
+++ b/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerControlsService.java
@@ -0,0 +1,106 @@
+package org.kde.kdeconnect.Plugins.PowerPlugin;
+
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.service.controls.Control;
+import android.service.controls.ControlsProviderService;
+import android.service.controls.DeviceTypes;
+import android.service.controls.actions.BooleanAction;
+import android.service.controls.actions.ControlAction;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresApi;
+
+
+import org.reactivestreams.FlowAdapters;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Flow;
+import java.util.function.Consumer;
+
+import io.reactivex.Flowable;
+import io.reactivex.processors.ReplayProcessor;
+
+@RequiresApi(30)
+public class PowerControlsService extends ControlsProviderService {
+
+    private ReplayProcessor updatePublisher;
+    ArrayList<Control> controls =new ArrayList<>();
+
+    final static String MY_TEST_ID = "myAwesomeId";
+
+    @NonNull
+    @Override
+    public Flow.Publisher createPublisherForAllAvailable() {
+        Context context=getBaseContext();
+        Intent i=new Intent();
+        PendingIntent pi=PendingIntent.getActivity(context,1,i,PendingIntent.FLAG_UPDATE_CURRENT);
+
+
+        Control control = new Control.StatelessBuilder(MY_TEST_ID, pi)
+            .setTitle("My device")
+            .setSubtitle("KDE Connect")
+            .setDeviceType(DeviceTypes.TYPE_DISPLAY) //There's no type "computer"
+            .build();
+
+        controls.add(control);
+
+        return FlowAdapters.toFlowPublisher(Flowable.fromIterable(controls));
+    }
+
+
+    @NonNull
+    @Override
+    public Flow.Publisher<Control> createPublisherFor(@NonNull List<String> controlIds) {
+
+        Context context = getBaseContext();
+        /* Fill in details for the activity related to this device. On long press,
+         * this Intent will be launched in a bottomsheet. Please design the activity
+         * accordingly to fit a more limited space (about 2/3 screen height).
+         */
+        Intent i = new Intent();
+        PendingIntent pi = PendingIntent.getActivity(context, 1, i, PendingIntent.FLAG_UPDATE_CURRENT);
+
+        updatePublisher = ReplayProcessor.create();
+
+        // For each controlId in controlIds
+        if (controlIds.contains(MY_TEST_ID)) {
+
+            Control control = new Control.StatefulBuilder(MY_TEST_ID, pi)
+                .setTitle("My device")
+                .setSubtitle("KDE Connect")
+                .setDeviceType(DeviceTypes.TYPE_DISPLAY) //There's no type "computer"
+                .setStatus(Control.STATUS_OK) // For example, Control.STATUS_OK
+                .build();
+
+            updatePublisher.onNext(control);
+        }
+
+        return FlowAdapters.toFlowPublisher(updatePublisher);
+    }
+
+    @Override
+    public void performControlAction(@NonNull String controlId, @NonNull ControlAction action, @NonNull Consumer consumer) {
+
+        /* First, locate the control identified by the controlId. Once it is located, you can
+         * interpret the action appropriately for that specific device. For instance, the following
+         * assumes that the controlId is associated with a light, and the light can be turned on
+         * or off.
+         */
+        if (action instanceof BooleanAction) {
+
+            // Inform SystemUI that the action has been received and is being processed
+            consumer.accept(ControlAction.RESPONSE_OK);
+
+
+            /* This is where application logic/network requests would be invoked to update the state of
+             * the device.
+             * After updating, the application should use the publisher to update SystemUI with the new
+             * state.
+             */
+
+        }
+    }
+}
diff --git a/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerPlugin.java b/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerPlugin.java
new file mode 100644
index 00000000..c6bdb536
--- /dev/null
+++ b/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerPlugin.java
@@ -0,0 +1,81 @@
+/*
+ * SPDX-FileCopyrightText: 2015 Aleix Pol Gonzalez <aleixpol@kde.org>
+ * SPDX-FileCopyrightText: 2015 Albert Vaca Cintora <albertvaka@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+*/
+
+package org.kde.kdeconnect.Plugins.PowerPlugin;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.graphics.drawable.Drawable;
+
+import androidx.core.content.ContextCompat;
+
+import org.kde.kdeconnect.NetworkPacket;
+import org.kde.kdeconnect.Plugins.Plugin;
+import org.kde.kdeconnect.Plugins.PluginFactory;
+import org.kde.kdeconnect_tp.R;
+
+@PluginFactory.LoadablePlugin
+public class PowerPlugin extends Plugin {
+
+    private final static String PACKET_TYPE_POWER = "kdeconnect.power";
+
+    @Override
+    public String getDisplayName() {
+        return context.getResources().getString(R.string.pref_plugin_runcommand);
+    }
+
+    @Override
+    public String getDescription() {
+        return context.getResources().getString(R.string.pref_plugin_runcommand_desc);
+    }
+
+    @Override
+    public Drawable getIcon() {
+        return ContextCompat.getDrawable(context, R.drawable.run_command_plugin_icon_24dp);
+    }
+
+    @Override
+    public boolean onCreate() {
+
+
+        return true;
+    }
+
+    @Override
+    public String[] getSupportedPacketTypes() {
+        return new String[]{};
+    }
+
+    @Override
+    public String[] getOutgoingPacketTypes() {
+        return new String[]{PACKET_TYPE_POWER};
+    }
+
+    public void sendCommand(String command) {
+        NetworkPacket np = new NetworkPacket(PACKET_TYPE_POWER);
+        np.set("command", command);
+        device.sendPacket(np);
+    }
+
+    @Override
+    public boolean hasMainActivity() {
+        return true;
+    }
+
+    @Override
+    public void startMainActivity(Activity parentActivity) {
+        Intent intent = new Intent(parentActivity, PowerActivity.class);
+        intent.putExtra("deviceId", device.getDeviceId());
+        parentActivity.startActivity(intent);
+    }
+
+    @Override
+    public String getActionName() {
+        return context.getString(R.string.pref_plugin_power);
+    }
+
+}
diff --git a/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerPluginsSingleton.java b/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerPluginsSingleton.java
new file mode 100644
index 00000000..e0007ce3
--- /dev/null
+++ b/src/org/kde/kdeconnect/Plugins/PowerPlugin/PowerPluginsSingleton.java
@@ -0,0 +1,22 @@
+package org.kde.kdeconnect.Plugins.PowerPlugin;
+
+import java.util.HashMap;
+import java.util.concurrent.Flow;
+
+public class PowerPluginsSingleton {
+
+    HashMap<String, PowerPlugin> availableDevices = new HashMap<>();
+
+
+    static public PowerPluginsSingleton getInstance() {
+        if (instance == null) {
+            instance = new PowerPluginsSingleton();
+        }
+        return instance;
+    }
+
+    private static PowerPluginsSingleton instance = null;
+    private PowerPluginsSingleton() { }
+
+
+}