Merge "Introduce FreeformWindowsPreferenceController"

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -413,6 +413,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         // inactive apps
         controllers.add(new AllowAppsOnExternalPreferenceController(context));
         controllers.add(new ResizableActivityPreferenceController(context));
+        controllers.add(new FreeformWindowsPreferenceController(context));
         controllers.add(new ShortcutManagerThrottlingPreferenceController(context));
         return controllers;
     }

src/com/android/settings/development/FreeformWindowsPreferenceController.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2017 The Android Open Source 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.
+ */
+
+package com.android.settings.development;
+
+import android.content.Context;
+import android.os.Build;
+import android.provider.Settings;
+import android.support.annotation.VisibleForTesting;
+import android.support.v14.preference.SwitchPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+import android.text.TextUtils;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+public class FreeformWindowsPreferenceController extends
+        DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener,
+        PreferenceControllerMixin {
+
+    private static final String ENABLE_FREEFORM_SUPPORT_KEY = "enable_freeform_support";
+
+    @VisibleForTesting
+    static final int SETTING_VALUE_OFF = 0;
+    @VisibleForTesting
+    static final int SETTING_VALUE_ON = 1;
+    @VisibleForTesting
+    static final String USER_BUILD_TYPE = "user";
+
+    private SwitchPreference mPreference;
+
+    public FreeformWindowsPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return !TextUtils.equals(USER_BUILD_TYPE, getBuildType());
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return ENABLE_FREEFORM_SUPPORT_KEY;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        mPreference = (SwitchPreference) screen.findPreference(getPreferenceKey());
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean isEnabled = (Boolean) newValue;
+        Settings.Global.putInt(mContext.getContentResolver(),
+                Settings.Global.DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT,
+                isEnabled ? SETTING_VALUE_ON : SETTING_VALUE_OFF);
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        final int mode = Settings.Global.getInt(mContext.getContentResolver(),
+                Settings.Global.DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT, SETTING_VALUE_OFF);
+        mPreference.setChecked(mode != SETTING_VALUE_OFF);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchEnabled() {
+        mPreference.setEnabled(true);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        Settings.Global.putInt(mContext.getContentResolver(),
+                Settings.Global.DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT, SETTING_VALUE_OFF);
+        mPreference.setEnabled(false);
+        mPreference.setChecked(false);
+    }
+
+    @VisibleForTesting
+    String getBuildType() {
+        return Build.TYPE;
+    }
+}