| /* |
| * Copyright (C) 2010 Google Inc. |
| * |
| * 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.systemui.usb; |
| |
| import android.app.Activity; |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.content.res.Resources; |
| import android.os.Bundle; |
| import android.os.Environment; |
| import android.os.Handler; |
| import android.os.storage.IMountService; |
| import android.os.Message; |
| import android.os.ServiceManager; |
| import android.os.storage.StorageEventListener; |
| import android.os.storage.StorageManager; |
| import android.os.storage.StorageResultCode; |
| import android.provider.Settings; |
| import android.util.Slog; |
| import android.view.View; |
| import android.widget.Button; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| import android.widget.Toast; |
| |
| public class StorageNotification extends StorageEventListener { |
| private static final String TAG = "StorageNotification"; |
| |
| private static final boolean POP_UMS_ACTIVITY_ON_CONNECT = true; |
| |
| /** |
| * Binder context for this service |
| */ |
| private Context mContext; |
| |
| /** |
| * The notification that is shown when a USB mass storage host |
| * is connected. |
| * <p> |
| * This is lazily created, so use {@link #setUsbStorageNotification()}. |
| */ |
| private Notification mUsbStorageNotification; |
| |
| /** |
| * The notification that is shown when the following media events occur: |
| * - Media is being checked |
| * - Media is blank (or unknown filesystem) |
| * - Media is corrupt |
| * - Media is safe to unmount |
| * - Media is missing |
| * <p> |
| * This is lazily created, so use {@link #setMediaStorageNotification()}. |
| */ |
| private Notification mMediaStorageNotification; |
| private boolean mUmsAvailable; |
| private StorageManager mStorageManager; |
| |
| public StorageNotification(Context context) { |
| mContext = context; |
| |
| mStorageManager = (StorageManager) context.getSystemService(Context.STORAGE_SERVICE); |
| final boolean connected = mStorageManager.isUsbMassStorageConnected(); |
| Slog.d(TAG, String.format( "Startup with UMS connection %s (media state %s)", mUmsAvailable, |
| Environment.getExternalStorageState())); |
| onUsbMassStorageConnectionChanged(connected); |
| } |
| |
| /* |
| * @override com.android.os.storage.StorageEventListener |
| */ |
| @Override |
| public void onUsbMassStorageConnectionChanged(boolean connected) { |
| mUmsAvailable = connected; |
| /* |
| * Even though we may have a UMS host connected, we the SD card |
| * may not be in a state for export. |
| */ |
| String st = Environment.getExternalStorageState(); |
| |
| Slog.i(TAG, String.format("UMS connection changed to %s (media state %s)", connected, st)); |
| |
| if (connected && (st.equals( |
| Environment.MEDIA_REMOVED) || st.equals(Environment.MEDIA_CHECKING))) { |
| /* |
| * No card or card being checked = don't display |
| */ |
| connected = false; |
| } |
| updateUsbMassStorageNotification(connected); |
| } |
| |
| /* |
| * @override com.android.os.storage.StorageEventListener |
| */ |
| @Override |
| public void onStorageStateChanged(String path, String oldState, String newState) { |
| Slog.i(TAG, String.format( |
| "Media {%s} state changed from {%s} -> {%s}", path, oldState, newState)); |
| if (newState.equals(Environment.MEDIA_SHARED)) { |
| /* |
| * Storage is now shared. Modify the UMS notification |
| * for stopping UMS. |
| */ |
| Intent intent = new Intent(); |
| intent.setClass(mContext, com.android.systemui.usb.UsbStorageActivity.class); |
| PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0); |
| setUsbStorageNotification( |
| com.android.internal.R.string.usb_storage_stop_notification_title, |
| com.android.internal.R.string.usb_storage_stop_notification_message, |
| com.android.internal.R.drawable.stat_sys_warning, false, true, pi); |
| } else if (newState.equals(Environment.MEDIA_CHECKING)) { |
| /* |
| * Storage is now checking. Update media notification and disable |
| * UMS notification. |
| */ |
| setMediaStorageNotification( |
| com.android.internal.R.string.ext_media_checking_notification_title, |
| com.android.internal.R.string.ext_media_checking_notification_message, |
| com.android.internal.R.drawable.stat_notify_sdcard_prepare, true, false, null); |
| updateUsbMassStorageNotification(false); |
| } else if (newState.equals(Environment.MEDIA_MOUNTED)) { |
| /* |
| * Storage is now mounted. Dismiss any media notifications, |
| * and enable UMS notification if connected. |
| */ |
| setMediaStorageNotification(0, 0, 0, false, false, null); |
| updateUsbMassStorageNotification(mUmsAvailable); |
| } else if (newState.equals(Environment.MEDIA_UNMOUNTED)) { |
| /* |
| * Storage is now unmounted. We may have been unmounted |
| * because the user is enabling/disabling UMS, in which case we don't |
| * want to display the 'safe to unmount' notification. |
| */ |
| if (!mStorageManager.isUsbMassStorageEnabled()) { |
| if (oldState.equals(Environment.MEDIA_SHARED)) { |
| /* |
| * The unmount was due to UMS being enabled. Dismiss any |
| * media notifications, and enable UMS notification if connected |
| */ |
| setMediaStorageNotification(0, 0, 0, false, false, null); |
| updateUsbMassStorageNotification(mUmsAvailable); |
| } else { |
| /* |
| * Show safe to unmount media notification, and enable UMS |
| * notification if connected. |
| */ |
| setMediaStorageNotification( |
| com.android.internal.R.string.ext_media_safe_unmount_notification_title, |
| com.android.internal.R.string.ext_media_safe_unmount_notification_message, |
| com.android.internal.R.drawable.stat_notify_sdcard, true, true, null); |
| updateUsbMassStorageNotification(mUmsAvailable); |
| } |
| } else { |
| /* |
| * The unmount was due to UMS being enabled. Dismiss any |
| * media notifications, and disable the UMS notification |
| */ |
| setMediaStorageNotification(0, 0, 0, false, false, null); |
| updateUsbMassStorageNotification(false); |
| } |
| } else if (newState.equals(Environment.MEDIA_NOFS)) { |
| /* |
| * Storage has no filesystem. Show blank media notification, |
| * and enable UMS notification if connected. |
| */ |
| Intent intent = new Intent(); |
| intent.setClass(mContext, com.android.internal.app.ExternalMediaFormatActivity.class); |
| PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0); |
| |
| setMediaStorageNotification( |
| com.android.internal.R.string.ext_media_nofs_notification_title, |
| com.android.internal.R.string.ext_media_nofs_notification_message, |
| com.android.internal.R.drawable.stat_notify_sdcard_usb, true, false, pi); |
| updateUsbMassStorageNotification(mUmsAvailable); |
| } else if (newState.equals(Environment.MEDIA_UNMOUNTABLE)) { |
| /* |
| * Storage is corrupt. Show corrupt media notification, |
| * and enable UMS notification if connected. |
| */ |
| Intent intent = new Intent(); |
| intent.setClass(mContext, com.android.internal.app.ExternalMediaFormatActivity.class); |
| PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0); |
| |
| setMediaStorageNotification( |
| com.android.internal.R.string.ext_media_unmountable_notification_title, |
| com.android.internal.R.string.ext_media_unmountable_notification_message, |
| com.android.internal.R.drawable.stat_notify_sdcard_usb, true, false, pi); |
| updateUsbMassStorageNotification(mUmsAvailable); |
| } else if (newState.equals(Environment.MEDIA_REMOVED)) { |
| /* |
| * Storage has been removed. Show nomedia media notification, |
| * and disable UMS notification regardless of connection state. |
| */ |
| setMediaStorageNotification( |
| com.android.internal.R.string.ext_media_nomedia_notification_title, |
| com.android.internal.R.string.ext_media_nomedia_notification_message, |
| com.android.internal.R.drawable.stat_notify_sdcard_usb, |
| true, false, null); |
| updateUsbMassStorageNotification(false); |
| } else if (newState.equals(Environment.MEDIA_BAD_REMOVAL)) { |
| /* |
| * Storage has been removed unsafely. Show bad removal media notification, |
| * and disable UMS notification regardless of connection state. |
| */ |
| setMediaStorageNotification( |
| com.android.internal.R.string.ext_media_badremoval_notification_title, |
| com.android.internal.R.string.ext_media_badremoval_notification_message, |
| com.android.internal.R.drawable.stat_sys_warning, |
| true, true, null); |
| updateUsbMassStorageNotification(false); |
| } else { |
| Slog.w(TAG, String.format("Ignoring unknown state {%s}", newState)); |
| } |
| } |
| |
| /** |
| * Update the state of the USB mass storage notification |
| */ |
| void updateUsbMassStorageNotification(boolean available) { |
| |
| if (available) { |
| Intent intent = new Intent(); |
| intent.setClass(mContext, com.android.systemui.usb.UsbStorageActivity.class); |
| intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| |
| final boolean adbOn = 1 == Settings.Secure.getInt( |
| mContext.getContentResolver(), |
| Settings.Secure.ADB_ENABLED, |
| 0); |
| |
| PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0); |
| setUsbStorageNotification( |
| com.android.internal.R.string.usb_storage_notification_title, |
| com.android.internal.R.string.usb_storage_notification_message, |
| com.android.internal.R.drawable.stat_sys_data_usb, |
| false, true, pi); |
| |
| if (POP_UMS_ACTIVITY_ON_CONNECT && !adbOn) { |
| // We assume that developers don't want to enable UMS every |
| // time they attach a device to a USB host. The average user, |
| // however, is looking to charge the phone (in which case this |
| // is harmless) or transfer files (in which case this coaches |
| // the user about how to complete that task and saves several |
| // steps). |
| mContext.startActivity(intent); |
| } |
| } else { |
| setUsbStorageNotification(0, 0, 0, false, false, null); |
| } |
| } |
| |
| /** |
| * Sets the USB storage notification. |
| */ |
| private synchronized void setUsbStorageNotification(int titleId, int messageId, int icon, |
| boolean sound, boolean visible, PendingIntent pi) { |
| |
| if (!visible && mUsbStorageNotification == null) { |
| return; |
| } |
| |
| NotificationManager notificationManager = (NotificationManager) mContext |
| .getSystemService(Context.NOTIFICATION_SERVICE); |
| |
| if (notificationManager == null) { |
| return; |
| } |
| |
| if (visible) { |
| Resources r = Resources.getSystem(); |
| CharSequence title = r.getText(titleId); |
| CharSequence message = r.getText(messageId); |
| |
| if (mUsbStorageNotification == null) { |
| mUsbStorageNotification = new Notification(); |
| mUsbStorageNotification.icon = icon; |
| mUsbStorageNotification.when = 0; |
| } |
| |
| if (sound) { |
| mUsbStorageNotification.defaults |= Notification.DEFAULT_SOUND; |
| } else { |
| mUsbStorageNotification.defaults &= ~Notification.DEFAULT_SOUND; |
| } |
| |
| mUsbStorageNotification.flags = Notification.FLAG_ONGOING_EVENT; |
| |
| mUsbStorageNotification.tickerText = title; |
| if (pi == null) { |
| Intent intent = new Intent(); |
| pi = PendingIntent.getBroadcast(mContext, 0, intent, 0); |
| } |
| |
| mUsbStorageNotification.setLatestEventInfo(mContext, title, message, pi); |
| } |
| |
| final int notificationId = mUsbStorageNotification.icon; |
| if (visible) { |
| notificationManager.notify(notificationId, mUsbStorageNotification); |
| } else { |
| notificationManager.cancel(notificationId); |
| } |
| } |
| |
| private synchronized boolean getMediaStorageNotificationDismissable() { |
| if ((mMediaStorageNotification != null) && |
| ((mMediaStorageNotification.flags & Notification.FLAG_AUTO_CANCEL) == |
| Notification.FLAG_AUTO_CANCEL)) |
| return true; |
| |
| return false; |
| } |
| |
| /** |
| * Sets the media storage notification. |
| */ |
| private synchronized void setMediaStorageNotification(int titleId, int messageId, int icon, boolean visible, |
| boolean dismissable, PendingIntent pi) { |
| |
| if (!visible && mMediaStorageNotification == null) { |
| return; |
| } |
| |
| NotificationManager notificationManager = (NotificationManager) mContext |
| .getSystemService(Context.NOTIFICATION_SERVICE); |
| |
| if (notificationManager == null) { |
| return; |
| } |
| |
| if (mMediaStorageNotification != null && visible) { |
| /* |
| * Dismiss the previous notification - we're about to |
| * re-use it. |
| */ |
| final int notificationId = mMediaStorageNotification.icon; |
| notificationManager.cancel(notificationId); |
| } |
| |
| if (visible) { |
| Resources r = Resources.getSystem(); |
| CharSequence title = r.getText(titleId); |
| CharSequence message = r.getText(messageId); |
| |
| if (mMediaStorageNotification == null) { |
| mMediaStorageNotification = new Notification(); |
| mMediaStorageNotification.when = 0; |
| } |
| |
| mMediaStorageNotification.defaults &= ~Notification.DEFAULT_SOUND; |
| |
| if (dismissable) { |
| mMediaStorageNotification.flags = Notification.FLAG_AUTO_CANCEL; |
| } else { |
| mMediaStorageNotification.flags = Notification.FLAG_ONGOING_EVENT; |
| } |
| |
| mMediaStorageNotification.tickerText = title; |
| if (pi == null) { |
| Intent intent = new Intent(); |
| pi = PendingIntent.getBroadcast(mContext, 0, intent, 0); |
| } |
| |
| mMediaStorageNotification.icon = icon; |
| mMediaStorageNotification.setLatestEventInfo(mContext, title, message, pi); |
| } |
| |
| final int notificationId = mMediaStorageNotification.icon; |
| if (visible) { |
| notificationManager.notify(notificationId, mMediaStorageNotification); |
| } else { |
| notificationManager.cancel(notificationId); |
| } |
| } |
| } |
