Add Android brightness backend

Test Plan: Double-tap barcode : Screen gets brighter

Reviewers: vkrause

Reviewed By: vkrause

Subscribers: kde-pim

Tags: #kde_pim, #kde_itinerary

Differential Revision: https://phabricator.kde.org/D17827

src/app/CMakeLists.txt

@@ -48,7 +48,9 @@ set(itinerary_app_srcs
     brightnessmanager.cpp
     livedatamanager.cpp
 )
-if (NOT ANDROID)
+if (ANDROID)
+    list(APPEND itinerary_app_srcs androidbrightnessbackend.cpp)
+else()
     list(APPEND itinerary_app_srcs solidbrightnessbackend.cpp)
     qt5_add_dbus_interface(itinerary_app_srcs org.kde.Solid.PowerManagement.Actions.BrightnessControl.xml brightnesscontroldbusinterface)
 endif()

src/app/androidbrightnessbackend.cpp

+/*
+    Copyright (C) 2018 Nicolas Fella <nicolas.fella@gmx.de>
+
+    This program is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Library General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
+    License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "androidbrightnessbackend.h"
+
+#include <QDebug>
+#include <QtAndroid>
+#include <QAndroidJniObject>
+
+AndroidBrightnessBackend::AndroidBrightnessBackend(QObject *parent)
+    : BrightnessBackend(parent)
+{
+}
+
+AndroidBrightnessBackend::~AndroidBrightnessBackend()
+{
+}
+
+void AndroidBrightnessBackend::maxBrightness()
+{
+    const auto activity = QtAndroid::androidActivity();
+    if (activity.isValid()) {
+        activity.callMethod<void>("maxBrightness");
+    }
+}

src/app/androidbrightnessbackend.h

+/*
+    Copyright (C) 2018 Nicolas Fella <nicolas.fella@gmx.de>
+
+    This program is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Library General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
+    License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#ifndef ANDROIDBRIGHTNESSBACKEND_H
+#define ANDROIDBRIGHTNESSBACKEND_H
+
+#include <QObject>
+#include "brightnessmanager.h"
+
+
+class AndroidBrightnessBackend : public BrightnessBackend
+{
+
+public:
+    explicit AndroidBrightnessBackend(QObject *parent = nullptr);
+    virtual ~AndroidBrightnessBackend();
+
+    virtual void maxBrightness();
+
+};
+
+#endif //  ANDROIDBRIGHTNESSBACKEND_H

src/app/brightnessmanager.cpp

@@ -19,14 +19,18 @@
 
 #include <QDebug>
 
-#if defined(Q_OS_LINUX) && !defined(Q_OS_ANDROID)
+#if defined(Q_OS_ANDROID)
+#include "androidbrightnessbackend.h"
+#elif defined(Q_OS_LINUX)
 #include "solidbrightnessbackend.h"
 #endif
 
 BrightnessManager::BrightnessManager(QObject *parent)
     : QObject(parent)
 {
-#if defined(Q_OS_LINUX) && !defined(Q_OS_ANDROID)
+#if defined(Q_OS_ANDROID)
+    m_backend = new AndroidBrightnessBackend(this);
+#elif defined(Q_OS_LINUX)
     m_backend = new SolidBrightnessBackend(this);
 #endif
 }

src/app/src/org/kde/itinerary/Activity.java

@@ -27,6 +27,7 @@ import android.database.Cursor;
 import android.net.Uri;
 import android.provider.CalendarContract;
 import android.util.Log;
+import android.view.WindowManager;
 
 import java.io.*;
 import java.util.*;
@@ -116,4 +117,15 @@ public class Activity extends QtActivity
             }
         }
     }
+
+    public void maxBrightness() {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                WindowManager.LayoutParams layout = getWindow().getAttributes();
+                layout.screenBrightness = 1F;
+                getWindow().setAttributes(layout);
+            }
+        });
+    }
 }