1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.deviceinfo; 18 19 import android.app.ActivityManager; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.res.Resources; 23 import android.net.Uri; 24 import android.os.Bundle; 25 import android.os.UserManager; 26 import android.os.storage.DiskInfo; 27 import android.os.storage.StorageEventListener; 28 import android.os.storage.StorageManager; 29 import android.os.storage.VolumeInfo; 30 import android.os.storage.VolumeRecord; 31 import android.provider.DocumentsContract; 32 import android.support.v7.preference.Preference; 33 import android.support.v7.preference.PreferenceScreen; 34 import android.text.TextUtils; 35 import android.text.format.Formatter; 36 import android.text.format.Formatter.BytesResult; 37 import android.view.View; 38 import android.view.ViewGroup; 39 import android.widget.Button; 40 41 import com.android.internal.logging.MetricsProto.MetricsEvent; 42 import com.android.internal.util.Preconditions; 43 import com.android.settings.R; 44 import com.android.settings.SettingsPreferenceFragment; 45 import com.android.settings.deviceinfo.StorageSettings.MountTask; 46 import com.android.settings.deviceinfo.StorageSettings.UnmountTask; 47 48 import java.io.File; 49 import java.util.Objects; 50 51 /** 52 * Panel showing summary and actions for a {@link VolumeInfo#TYPE_PUBLIC} 53 * storage volume. 54 */ 55 public class PublicVolumeSettings extends SettingsPreferenceFragment { 56 // TODO: disable unmount when providing over MTP/PTP 57 58 private StorageManager mStorageManager; 59 60 private String mVolumeId; 61 private VolumeInfo mVolume; 62 private DiskInfo mDisk; 63 64 private StorageSummaryPreference mSummary; 65 66 private Preference mMount; 67 private Preference mFormatPublic; 68 private Preference mFormatPrivate; 69 private Button mUnmount; 70 71 private boolean mIsPermittedToAdopt; 72 73 private boolean isVolumeValid() { 74 return (mVolume != null) && (mVolume.getType() == VolumeInfo.TYPE_PUBLIC) 75 && mVolume.isMountedReadable(); 76 } 77 78 @Override 79 protected int getMetricsCategory() { 80 return MetricsEvent.DEVICEINFO_STORAGE; 81 } 82 83 @Override 84 public void onCreate(Bundle icicle) { 85 super.onCreate(icicle); 86 87 final Context context = getActivity(); 88 89 mIsPermittedToAdopt = UserManager.get(context).isAdminUser() 90 && !ActivityManager.isUserAMonkey(); 91 92 mStorageManager = context.getSystemService(StorageManager.class); 93 94 if (DocumentsContract.ACTION_DOCUMENT_ROOT_SETTINGS.equals( 95 getActivity().getIntent().getAction())) { 96 final Uri rootUri = getActivity().getIntent().getData(); 97 final String fsUuid = DocumentsContract.getRootId(rootUri); 98 mVolume = mStorageManager.findVolumeByUuid(fsUuid); 99 } else { 100 final String volId = getArguments().getString(VolumeInfo.EXTRA_VOLUME_ID); 101 mVolume = mStorageManager.findVolumeById(volId); 102 } 103 104 if (!isVolumeValid()) { 105 getActivity().finish(); 106 return; 107 } 108 109 mDisk = mStorageManager.findDiskById(mVolume.getDiskId()); 110 Preconditions.checkNotNull(mDisk); 111 112 mVolumeId = mVolume.getId(); 113 114 addPreferencesFromResource(R.xml.device_info_storage_volume); 115 getPreferenceScreen().setOrderingAsAdded(true); 116 117 mSummary = new StorageSummaryPreference(getPrefContext()); 118 119 mMount = buildAction(R.string.storage_menu_mount); 120 mUnmount = new Button(getActivity()); 121 mUnmount.setText(R.string.storage_menu_unmount); 122 mUnmount.setOnClickListener(mUnmountListener); 123 mFormatPublic = buildAction(R.string.storage_menu_format); 124 if (mIsPermittedToAdopt) { 125 mFormatPrivate = buildAction(R.string.storage_menu_format_private); 126 } 127 } 128 129 @Override 130 public void onActivityCreated(Bundle savedInstanceState) { 131 super.onActivityCreated(savedInstanceState); 132 final Resources resources = getResources(); 133 final int padding = resources.getDimensionPixelSize( 134 R.dimen.unmount_button_padding); 135 final ViewGroup buttonBar = getButtonBar(); 136 buttonBar.removeAllViews(); 137 buttonBar.setPadding(padding, padding, padding, padding); 138 buttonBar.addView(mUnmount, new ViewGroup.LayoutParams( 139 ViewGroup.LayoutParams.MATCH_PARENT, 140 ViewGroup.LayoutParams.WRAP_CONTENT)); 141 } 142 143 public void update() { 144 if (!isVolumeValid()) { 145 getActivity().finish(); 146 return; 147 } 148 149 getActivity().setTitle(mStorageManager.getBestVolumeDescription(mVolume)); 150 151 final Context context = getActivity(); 152 final PreferenceScreen screen = getPreferenceScreen(); 153 154 screen.removeAll(); 155 156 if (mVolume.isMountedReadable()) { 157 addPreference(mSummary); 158 159 final File file = mVolume.getPath(); 160 final long totalBytes = file.getTotalSpace(); 161 final long freeBytes = file.getFreeSpace(); 162 final long usedBytes = totalBytes - freeBytes; 163 164 final BytesResult result = Formatter.formatBytes(getResources(), usedBytes, 0); 165 mSummary.setTitle(TextUtils.expandTemplate(getText(R.string.storage_size_large), 166 result.value, result.units)); 167 mSummary.setSummary(getString(R.string.storage_volume_used, 168 Formatter.formatFileSize(context, totalBytes))); 169 mSummary.setPercent((int) ((usedBytes * 100) / totalBytes)); 170 } 171 172 if (mVolume.getState() == VolumeInfo.STATE_UNMOUNTED) { 173 addPreference(mMount); 174 } 175 if (mVolume.isMountedReadable()) { 176 getButtonBar().setVisibility(View.VISIBLE); 177 } 178 addPreference(mFormatPublic); 179 if (mDisk.isAdoptable() && mIsPermittedToAdopt) { 180 addPreference(mFormatPrivate); 181 } 182 } 183 184 private void addPreference(Preference pref) { 185 pref.setOrder(Preference.DEFAULT_ORDER); 186 getPreferenceScreen().addPreference(pref); 187 } 188 189 private Preference buildAction(int titleRes) { 190 final Preference pref = new Preference(getPrefContext()); 191 pref.setTitle(titleRes); 192 return pref; 193 } 194 195 @Override 196 public void onResume() { 197 super.onResume(); 198 199 // Refresh to verify that we haven't been formatted away 200 mVolume = mStorageManager.findVolumeById(mVolumeId); 201 if (!isVolumeValid()) { 202 getActivity().finish(); 203 return; 204 } 205 206 mStorageManager.registerListener(mStorageListener); 207 update(); 208 } 209 210 @Override 211 public void onPause() { 212 super.onPause(); 213 mStorageManager.unregisterListener(mStorageListener); 214 } 215 216 @Override 217 public boolean onPreferenceTreeClick(Preference pref) { 218 final Context context = getActivity(); 219 if (pref == mMount) { 220 new MountTask(context, mVolume).execute(); 221 } else if (pref == mFormatPublic) { 222 final Intent intent = new Intent(context, StorageWizardFormatConfirm.class); 223 intent.putExtra(DiskInfo.EXTRA_DISK_ID, mDisk.getId()); 224 intent.putExtra(StorageWizardFormatConfirm.EXTRA_FORMAT_PRIVATE, false); 225 startActivity(intent); 226 } else if (pref == mFormatPrivate) { 227 final Intent intent = new Intent(context, StorageWizardFormatConfirm.class); 228 intent.putExtra(DiskInfo.EXTRA_DISK_ID, mDisk.getId()); 229 intent.putExtra(StorageWizardFormatConfirm.EXTRA_FORMAT_PRIVATE, true); 230 startActivity(intent); 231 } 232 233 return super.onPreferenceTreeClick(pref); 234 } 235 236 private final View.OnClickListener mUnmountListener = new View.OnClickListener() { 237 @Override 238 public void onClick(View v) { 239 new UnmountTask(getActivity(), mVolume).execute(); 240 } 241 }; 242 243 private final StorageEventListener mStorageListener = new StorageEventListener() { 244 @Override 245 public void onVolumeStateChanged(VolumeInfo vol, int oldState, int newState) { 246 if (Objects.equals(mVolume.getId(), vol.getId())) { 247 mVolume = vol; 248 update(); 249 } 250 } 251 252 @Override 253 public void onVolumeRecordChanged(VolumeRecord rec) { 254 if (Objects.equals(mVolume.getFsUuid(), rec.getFsUuid())) { 255 mVolume = mStorageManager.findVolumeById(mVolumeId); 256 update(); 257 } 258 } 259 }; 260 } 261
