Merge "Disable Wallpaper setting when Wallpaper is disabled." into oc-dr1-dev

 */

package com.android.settings.display;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.content.pm.ResolveInfo;

import android.os.UserHandle;

import android.support.v7.preference.Preference;

import android.text.TextUtils;

import android.util.Log;

import com.android.settings.R;

import com.android.settings.core.PreferenceController;

import com.android.settingslib.RestrictedLockUtils;

import com.android.settingslib.RestrictedPreference;

import static android.os.UserManager.DISALLOW_SET_WALLPAPER;

import java.util.List;

public class WallpaperPreferenceController extends PreferenceController {

    private static final String TAG = "WallpaperPrefController";

    public static final String KEY_WALLPAPER = "wallpaper";

    private final String mWallpaperPackage;

    private final String mWallpaperClass;

    public WallpaperPreferenceController(Context context) {

        super(context);

        mWallpaperPackage = mContext.getString(R.string.config_wallpaper_picker_package);

        mWallpaperClass = mContext.getString(R.string.config_wallpaper_picker_class);

    }

    @Override

    public boolean isAvailable() {

        return true;

        if (TextUtils.isEmpty(mWallpaperPackage) || TextUtils.isEmpty(mWallpaperClass)) {

            Log.e(TAG, "No Wallpaper picker specified!");

            return false;

        }

        final ComponentName componentName =

                new ComponentName(mWallpaperPackage, mWallpaperClass);

        final PackageManager pm = mContext.getPackageManager();

        final Intent intent = new Intent();

        intent.setComponent(componentName);

        final List<ResolveInfo> resolveInfos =

                pm.queryIntentActivities(intent, 0 /* flags */);

        return resolveInfos != null && resolveInfos.size() != 0;

    }

    @Override

/*

 * 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.display;

import static com.google.common.truth.Truth.assertThat;

import static org.mockito.Matchers.any;

import static org.mockito.Matchers.anyInt;

import static org.mockito.Mockito.mock;

import static org.mockito.Mockito.when;

import android.content.Context;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.content.pm.ResolveInfo;

import com.android.settings.R;

import com.android.settings.TestConfig;

import com.android.settings.testutils.SettingsRobolectricTestRunner;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

import org.robolectric.annotation.Config;

import java.util.ArrayList;

import java.util.List;

@RunWith(SettingsRobolectricTestRunner.class)

@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)

public class WallpaperPreferenceControllerTest {

    private static final String WALLPAPER_PACKAGE = "TestPkg";

    private static final String WALLPAPER_CLASS = "TestCls";

    @Mock

    private Context mContext;

    @Mock

    private PackageManager mPackageManager;

    private WallpaperPreferenceController mController;

    @Before

    public void setUp() throws PackageManager.NameNotFoundException {

        MockitoAnnotations.initMocks(this);

        when(mContext.getString(R.string.config_wallpaper_picker_package))

                .thenReturn(WALLPAPER_PACKAGE);

        when(mContext.getString(R.string.config_wallpaper_picker_class))

                .thenReturn(WALLPAPER_CLASS);

        when(mContext.getPackageManager()).thenReturn(mPackageManager);

        mController = new WallpaperPreferenceController(mContext);

    }

    @Test

    public void isAvailable_wallpaerPickerEnabled_shouldReturnTrue() {

        final List<ResolveInfo> resolveInfos = new ArrayList<>();

        resolveInfos.add(mock(ResolveInfo.class));

        when(mPackageManager.queryIntentActivities(any(Intent.class), anyInt()))

                .thenReturn(resolveInfos);

        assertThat(mController.isAvailable()).isTrue();

    }

    @Test

    public void isAvailable_wallpaerPickerDisbled_shouldReturnFalseAndNoCrash() {

        when(mPackageManager.queryIntentActivities(any(Intent.class), anyInt())).thenReturn(null);

        assertThat(mController.isAvailable()).isFalse();

        final List<ResolveInfo> resolveInfos = new ArrayList<>();

        when(mPackageManager.queryIntentActivities(any(Intent.class), anyInt()))

                .thenReturn(resolveInfos);

        assertThat(mController.isAvailable()).isFalse();

        // should not crash

    }

}