Add a developer option which allows non-resizables in freeform

Bug: 138594779
Test: manual + pref test
Change-Id: I1620189799dc83cb1c255ca30c4ef29e73e73756

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

@@ -495,6 +495,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new ResizableActivityPreferenceController(context));
         controllers.add(new FreeformWindowsPreferenceController(context));
         controllers.add(new DesktopModePreferenceController(context));
+        controllers.add(new SizeCompatFreeformPreferenceController(context));
         controllers.add(new ShortcutManagerThrottlingPreferenceController(context));
         controllers.add(new BubbleGlobalPreferenceController(context));
         controllers.add(new EnableGnssRawMeasFullTrackingPreferenceController(context));

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

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2019 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 static android.provider.Settings.Global.DEVELOPMENT_ENABLE_SIZECOMPAT_FREEFORM;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * Preference Controller for whether to allow launching size-compat apps in freeform windows.
+ */
+public class SizeCompatFreeformPreferenceController extends DeveloperOptionsPreferenceController
+        implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
+
+    private static final String ENABLE_SIZECOMPAT_FREEFORM_KEY = "enable_sizecompat_freeform";
+
+    @VisibleForTesting
+    static final int SETTING_VALUE_OFF = 0;
+    @VisibleForTesting
+    static final int SETTING_VALUE_ON = 1;
+
+    public SizeCompatFreeformPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return ENABLE_SIZECOMPAT_FREEFORM_KEY;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean isEnabled = (Boolean) newValue;
+        Settings.Global.putInt(mContext.getContentResolver(),
+                DEVELOPMENT_ENABLE_SIZECOMPAT_FREEFORM,
+                isEnabled ? SETTING_VALUE_ON : SETTING_VALUE_OFF);
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        final int mode = Settings.Global.getInt(mContext.getContentResolver(),
+                DEVELOPMENT_ENABLE_SIZECOMPAT_FREEFORM, SETTING_VALUE_OFF);
+        ((SwitchPreference) mPreference).setChecked(mode != SETTING_VALUE_OFF);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        Settings.Global.putInt(mContext.getContentResolver(),
+                DEVELOPMENT_ENABLE_SIZECOMPAT_FREEFORM, SETTING_VALUE_OFF);
+        ((SwitchPreference) mPreference).setChecked(false);
+    }
+}