| /* |
| * 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.car.settings.storage; |
| |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.car.userlib.CarUserManagerHelper; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.os.storage.VolumeInfo; |
| import android.util.SparseArray; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.FragmentController; |
| import com.android.car.settings.common.PreferenceController; |
| import com.android.car.settings.common.ProgressBarPreference; |
| |
| /** |
| * Controller which have the basic logic to determines the storage for different categories visible |
| * in the storage preference screen. |
| */ |
| public abstract class StorageUsageBasePreferenceController extends |
| PreferenceController<ProgressBarPreference> implements |
| StorageSettingsManager.VolumeListener { |
| |
| private static final int PROGRESS_MAX = 100; |
| |
| private VolumeInfo mVolumeInfo; |
| private CarUserManagerHelper mCarUserManagerHelper; |
| |
| public StorageUsageBasePreferenceController(Context context, String preferenceKey, |
| FragmentController fragmentController, |
| CarUxRestrictions uxRestrictions) { |
| super(context, preferenceKey, fragmentController, uxRestrictions); |
| mCarUserManagerHelper = new CarUserManagerHelper(context); |
| } |
| |
| @Override |
| protected Class<ProgressBarPreference> getPreferenceType() { |
| return ProgressBarPreference.class; |
| } |
| |
| /** |
| * Calculates the storage used by the category. |
| * |
| * @return usage value in bytes. |
| */ |
| protected abstract long calculateCategoryUsage( |
| SparseArray<StorageAsyncLoader.AppsStorageResult> result, long usedSizeBytes); |
| |
| @Override |
| protected void onCreateInternal() { |
| getPreference().setSummary(R.string.memory_calculating_size); |
| getPreference().setMax(PROGRESS_MAX); |
| } |
| |
| @Override |
| public void onDataLoaded(SparseArray<StorageAsyncLoader.AppsStorageResult> result, |
| long usedSizeBytes, long totalSizeBytes) { |
| setStorageSize(calculateCategoryUsage(result, usedSizeBytes), totalSizeBytes); |
| } |
| |
| CarUserManagerHelper getCarUserManagerHelper() { |
| return mCarUserManagerHelper; |
| } |
| |
| public VolumeInfo getVolumeInfo() { |
| return mVolumeInfo; |
| } |
| |
| public void setVolumeInfo(VolumeInfo volumeInfo) { |
| mVolumeInfo = volumeInfo; |
| } |
| |
| /** |
| * Sets the storage size for this preference that will be displayed as a summary. It will also |
| * update the progress bar accordingly. |
| */ |
| private void setStorageSize(long size, long total) { |
| getPreference().setSummary( |
| FileSizeFormatter.formatFileSize( |
| getContext(), |
| size, |
| getGigabyteSuffix(getContext().getResources()), |
| FileSizeFormatter.GIGABYTE_IN_BYTES)); |
| int progressPercent; |
| if (total == 0) { |
| progressPercent = 0; |
| } else { |
| progressPercent = (int) (size * PROGRESS_MAX / total); |
| } |
| getPreference().setProgress(progressPercent); |
| } |
| |
| private static int getGigabyteSuffix(Resources res) { |
| return res.getIdentifier("gigabyteShort", "string", "android"); |
| } |
| } |