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/*
* Copyright (C) 2015 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.deviceinfo;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.storage.DiskInfo;
import android.os.storage.StorageEventListener;
import android.os.storage.StorageManager;
import android.os.storage.VolumeInfo;
import android.preference.Preference;
import android.preference.PreferenceScreen;
import android.provider.DocumentsContract;
import android.text.format.Formatter;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.util.Preconditions;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.deviceinfo.StorageSettings.FormatTask;
import com.android.settings.deviceinfo.StorageSettings.MountTask;
import com.android.settings.deviceinfo.StorageSettings.UnmountTask;
import java.io.File;
import java.util.Objects;
/**
* Panel showing summary and actions for a {@link VolumeInfo#TYPE_PUBLIC}
* storage volume.
*/
public class PublicVolumeSettings extends SettingsPreferenceFragment {
// TODO: disable unmount when providing over MTP/PTP
private StorageManager mStorageManager;
private String mVolumeId;
private VolumeInfo mVolume;
private DiskInfo mDisk;
private int mNextOrder = 0;
private UsageBarPreference mGraph;
private StorageItemPreference mTotal;
private StorageItemPreference mAvailable;
private Preference mMount;
private Preference mUnmount;
private Preference mFormat;
private Preference mFormatInternal;
private long mTotalSize;
private long mAvailSize;
@Override
protected int getMetricsCategory() {
return MetricsLogger.DEVICEINFO_STORAGE;
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
final Context context = getActivity();
mStorageManager = context.getSystemService(StorageManager.class);
if (DocumentsContract.ACTION_DOCUMENT_ROOT_SETTINGS.equals(
getActivity().getIntent().getAction())) {
final Uri rootUri = getActivity().getIntent().getData();
final String fsUuid = DocumentsContract.getRootId(rootUri);
mVolume = mStorageManager.findVolumeByUuid(fsUuid);
} else {
final String volId = getArguments().getString(VolumeInfo.EXTRA_VOLUME_ID);
mVolume = mStorageManager.findVolumeById(volId);
}
Preconditions.checkNotNull(mVolume);
Preconditions.checkState(mVolume.getType() == VolumeInfo.TYPE_PUBLIC);
mDisk = mStorageManager.findDiskById(mVolume.getDiskId());
Preconditions.checkNotNull(mDisk);
mVolumeId = mVolume.getId();
addPreferencesFromResource(R.xml.device_info_storage_volume);
mGraph = buildGraph();
mTotal = buildItem(R.string.memory_size, 0);
mAvailable = buildItem(R.string.memory_available, R.color.memory_avail);
mMount = buildAction(R.string.storage_menu_mount);
mUnmount = buildAction(R.string.storage_menu_unmount);
mFormat = buildAction(R.string.storage_menu_format);
mFormatInternal = buildAction(R.string.storage_menu_format_internal);
}
public void refresh() {
getActivity().setTitle(mStorageManager.getBestVolumeDescription(mVolume));
final Context context = getActivity();
final PreferenceScreen screen = getPreferenceScreen();
screen.removeAll();
if (mVolume.isMountedReadable()) {
screen.addPreference(mGraph);
screen.addPreference(mTotal);
screen.addPreference(mAvailable);
final File file = mVolume.getPath();
mTotalSize = file.getTotalSpace();
mAvailSize = file.getFreeSpace();
mTotal.setSummary(Formatter.formatFileSize(context, mTotalSize));
mAvailable.setSummary(Formatter.formatFileSize(context, mAvailSize));
mGraph.clear();
mGraph.addEntry(0, (mTotalSize - mAvailSize) / (float) mTotalSize,
android.graphics.Color.GRAY);
mGraph.commit();
}
if (mVolume.getState() == VolumeInfo.STATE_UNMOUNTED) {
screen.addPreference(mMount);
}
if (mVolume.isMountedReadable()) {
screen.addPreference(mUnmount);
}
screen.addPreference(mFormat);
if (mDisk.isAdoptable()) {
screen.addPreference(mFormatInternal);
}
}
private UsageBarPreference buildGraph() {
final UsageBarPreference pref = new UsageBarPreference(getActivity());
pref.setOrder(mNextOrder++);
return pref;
}
private StorageItemPreference buildItem(int titleRes, int colorRes) {
final StorageItemPreference pref = new StorageItemPreference(getActivity(), titleRes,
colorRes);
pref.setOrder(mNextOrder++);
return pref;
}
private Preference buildAction(int titleRes) {
final Preference pref = new Preference(getActivity());
pref.setTitle(titleRes);
pref.setOrder(mNextOrder++);
return pref;
}
@Override
public void onResume() {
super.onResume();
// Refresh to verify that we haven't been formatted away
mVolume = mStorageManager.findVolumeById(mVolumeId);
if (mVolume == null) {
getActivity().finish();
return;
}
mStorageManager.registerListener(mStorageListener);
refresh();
}
@Override
public void onPause() {
super.onPause();
mStorageManager.unregisterListener(mStorageListener);
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference pref) {
final Context context = getActivity();
if (pref == mMount) {
new MountTask(context, mVolume).execute();
} else if (pref == mUnmount) {
new UnmountTask(context, mVolume).execute();
} else if (pref == mFormat) {
new FormatTask(context, mVolume).execute();
} else if (pref == mFormatInternal) {
final Intent intent = new Intent(context, StorageWizardFormatConfirm.class);
intent.putExtra(DiskInfo.EXTRA_DISK_ID, mDisk.getId());
startActivity(intent);
}
return super.onPreferenceTreeClick(preferenceScreen, pref);
}
private final StorageEventListener mStorageListener = new StorageEventListener() {
@Override
public void onVolumeStateChanged(VolumeInfo vol, int oldState, int newState) {
if (Objects.equals(mVolume.getId(), vol.getId())) {
mVolume = vol;
refresh();
}
}
@Override
public void onVolumeMetadataChanged(VolumeInfo vol) {
if (Objects.equals(mVolume.getId(), vol.getId())) {
mVolume = vol;
refresh();
}
}
};
}
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