| /* |
| * Copyright (C) 2008 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.internal.policy.impl; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.res.Configuration; |
| import android.database.ContentObserver; |
| import static android.os.BatteryManager.BATTERY_STATUS_CHARGING; |
| import static android.os.BatteryManager.BATTERY_STATUS_FULL; |
| import static android.os.BatteryManager.BATTERY_STATUS_UNKNOWN; |
| import android.media.AudioManager; |
| import android.os.BatteryManager; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.SystemClock; |
| import android.provider.Settings; |
| import android.provider.Telephony; |
| import static android.provider.Telephony.Intents.EXTRA_PLMN; |
| import static android.provider.Telephony.Intents.EXTRA_SHOW_PLMN; |
| import static android.provider.Telephony.Intents.EXTRA_SHOW_SPN; |
| import static android.provider.Telephony.Intents.EXTRA_SPN; |
| import static android.provider.Telephony.Intents.SPN_STRINGS_UPDATED_ACTION; |
| |
| import com.android.internal.telephony.IccCard; |
| import com.android.internal.telephony.TelephonyIntents; |
| |
| import android.telephony.TelephonyManager; |
| import android.util.Log; |
| import com.android.internal.R; |
| import com.google.android.collect.Lists; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * Watches for updates that may be interesting to the keyguard, and provides |
| * the up to date information as well as a registration for callbacks that care |
| * to be updated. |
| * |
| * Note: under time crunch, this has been extended to include some stuff that |
| * doesn't really belong here. see {@link #handleBatteryUpdate} where it shutdowns |
| * the device, and {@link #getFailedAttempts()}, {@link #reportFailedAttempt()} |
| * and {@link #clearFailedAttempts()}. Maybe we should rename this 'KeyguardContext'... |
| */ |
| public class KeyguardUpdateMonitor { |
| |
| static private final String TAG = "KeyguardUpdateMonitor"; |
| static private final boolean DEBUG = false; |
| |
| /* package */ static final int LOW_BATTERY_THRESHOLD = 20; |
| |
| private final Context mContext; |
| |
| private IccCard.State mSimState = IccCard.State.READY; |
| |
| private boolean mKeyguardBypassEnabled; |
| |
| private boolean mDeviceProvisioned; |
| |
| private int mBatteryLevel; |
| |
| private int mBatteryStatus; |
| |
| private CharSequence mTelephonyPlmn; |
| private CharSequence mTelephonySpn; |
| |
| private int mFailedAttempts = 0; |
| |
| private Handler mHandler; |
| |
| private ArrayList<InfoCallback> mInfoCallbacks = Lists.newArrayList(); |
| private ArrayList<SimStateCallback> mSimStateCallbacks = Lists.newArrayList(); |
| private ContentObserver mContentObserver; |
| |
| // messages for the handler |
| private static final int MSG_TIME_UPDATE = 301; |
| private static final int MSG_BATTERY_UPDATE = 302; |
| private static final int MSG_CARRIER_INFO_UPDATE = 303; |
| private static final int MSG_SIM_STATE_CHANGE = 304; |
| private static final int MSG_RINGER_MODE_CHANGED = 305; |
| private static final int MSG_PHONE_STATE_CHANGED = 306; |
| |
| |
| /** |
| * When we receive a |
| * {@link com.android.internal.telephony.TelephonyIntents#ACTION_SIM_STATE_CHANGED} broadcast, |
| * and then pass a result via our handler to {@link KeyguardUpdateMonitor#handleSimStateChange}, |
| * we need a single object to pass to the handler. This class helps decode |
| * the intent and provide a {@link SimCard.State} result. |
| */ |
| private static class SimArgs { |
| |
| public final IccCard.State simState; |
| |
| private SimArgs(Intent intent) { |
| if (!TelephonyIntents.ACTION_SIM_STATE_CHANGED.equals(intent.getAction())) { |
| throw new IllegalArgumentException("only handles intent ACTION_SIM_STATE_CHANGED"); |
| } |
| String stateExtra = intent.getStringExtra(IccCard.INTENT_KEY_ICC_STATE); |
| if (IccCard.INTENT_VALUE_ICC_ABSENT.equals(stateExtra)) { |
| this.simState = IccCard.State.ABSENT; |
| } else if (IccCard.INTENT_VALUE_ICC_READY.equals(stateExtra)) { |
| this.simState = IccCard.State.READY; |
| } else if (IccCard.INTENT_VALUE_ICC_LOCKED.equals(stateExtra)) { |
| final String lockedReason = intent |
| .getStringExtra(IccCard.INTENT_KEY_LOCKED_REASON); |
| if (IccCard.INTENT_VALUE_LOCKED_ON_PIN.equals(lockedReason)) { |
| this.simState = IccCard.State.PIN_REQUIRED; |
| } else if (IccCard.INTENT_VALUE_LOCKED_ON_PUK.equals(lockedReason)) { |
| this.simState = IccCard.State.PUK_REQUIRED; |
| } else { |
| this.simState = IccCard.State.UNKNOWN; |
| } |
| } else if (IccCard.INTENT_VALUE_LOCKED_NETWORK.equals(stateExtra)) { |
| this.simState = IccCard.State.NETWORK_LOCKED; |
| } else { |
| this.simState = IccCard.State.UNKNOWN; |
| } |
| } |
| |
| public String toString() { |
| return simState.toString(); |
| } |
| } |
| |
| public KeyguardUpdateMonitor(Context context) { |
| mContext = context; |
| |
| mHandler = new Handler() { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case MSG_TIME_UPDATE: |
| handleTimeUpdate(); |
| break; |
| case MSG_BATTERY_UPDATE: |
| handleBatteryUpdate(msg.arg1, msg.arg2); |
| break; |
| case MSG_CARRIER_INFO_UPDATE: |
| handleCarrierInfoUpdate(); |
| break; |
| case MSG_SIM_STATE_CHANGE: |
| handleSimStateChange((SimArgs) msg.obj); |
| break; |
| case MSG_RINGER_MODE_CHANGED: |
| handleRingerModeChange(msg.arg1); |
| break; |
| case MSG_PHONE_STATE_CHANGED: |
| handlePhoneStateChanged((String)msg.obj); |
| break; |
| } |
| } |
| }; |
| |
| mKeyguardBypassEnabled = context.getResources().getBoolean( |
| com.android.internal.R.bool.config_bypass_keyguard_if_slider_open); |
| |
| mDeviceProvisioned = Settings.Secure.getInt( |
| mContext.getContentResolver(), Settings.Secure.DEVICE_PROVISIONED, 0) != 0; |
| |
| // Since device can't be un-provisioned, we only need to register a content observer |
| // to update mDeviceProvisioned when we are... |
| if (!mDeviceProvisioned) { |
| mContentObserver = new ContentObserver(mHandler) { |
| @Override |
| public void onChange(boolean selfChange) { |
| super.onChange(selfChange); |
| mDeviceProvisioned = Settings.Secure.getInt(mContext.getContentResolver(), |
| Settings.Secure.DEVICE_PROVISIONED, 0) != 0; |
| if (mDeviceProvisioned && mContentObserver != null) { |
| // We don't need the observer anymore... |
| mContext.getContentResolver().unregisterContentObserver(mContentObserver); |
| mContentObserver = null; |
| } |
| if (DEBUG) Log.d(TAG, "DEVICE_PROVISIONED state = " + mDeviceProvisioned); |
| } |
| }; |
| |
| mContext.getContentResolver().registerContentObserver( |
| Settings.Secure.getUriFor(Settings.Secure.DEVICE_PROVISIONED), |
| false, mContentObserver); |
| |
| // prevent a race condition between where we check the flag and where we register the |
| // observer by grabbing the value once again... |
| mDeviceProvisioned = Settings.Secure.getInt(mContext.getContentResolver(), |
| Settings.Secure.DEVICE_PROVISIONED, 0) != 0; |
| } |
| |
| // take a guess to start |
| mSimState = IccCard.State.READY; |
| mBatteryStatus = BATTERY_STATUS_FULL; |
| mBatteryLevel = 100; |
| |
| mTelephonyPlmn = getDefaultPlmn(); |
| |
| // setup receiver |
| final IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_TIME_TICK); |
| filter.addAction(Intent.ACTION_TIME_CHANGED); |
| filter.addAction(Intent.ACTION_BATTERY_CHANGED); |
| filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); |
| filter.addAction(TelephonyIntents.ACTION_SIM_STATE_CHANGED); |
| filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED); |
| filter.addAction(SPN_STRINGS_UPDATED_ACTION); |
| filter.addAction(AudioManager.RINGER_MODE_CHANGED_ACTION); |
| context.registerReceiver(new BroadcastReceiver() { |
| |
| public void onReceive(Context context, Intent intent) { |
| final String action = intent.getAction(); |
| if (DEBUG) Log.d(TAG, "received broadcast " + action); |
| |
| if (Intent.ACTION_TIME_TICK.equals(action) |
| || Intent.ACTION_TIME_CHANGED.equals(action) |
| || Intent.ACTION_TIMEZONE_CHANGED.equals(action)) { |
| mHandler.sendMessage(mHandler.obtainMessage(MSG_TIME_UPDATE)); |
| } else if (SPN_STRINGS_UPDATED_ACTION.equals(action)) { |
| mTelephonyPlmn = getTelephonyPlmnFrom(intent); |
| mTelephonySpn = getTelephonySpnFrom(intent); |
| mHandler.sendMessage(mHandler.obtainMessage(MSG_CARRIER_INFO_UPDATE)); |
| } else if (Intent.ACTION_BATTERY_CHANGED.equals(action)) { |
| final int pluggedInStatus = intent |
| .getIntExtra("status", BATTERY_STATUS_UNKNOWN); |
| int batteryLevel = intent.getIntExtra("level", 0); |
| final Message msg = mHandler.obtainMessage( |
| MSG_BATTERY_UPDATE, |
| pluggedInStatus, |
| batteryLevel); |
| mHandler.sendMessage(msg); |
| } else if (TelephonyIntents.ACTION_SIM_STATE_CHANGED.equals(action)) { |
| mHandler.sendMessage(mHandler.obtainMessage( |
| MSG_SIM_STATE_CHANGE, |
| new SimArgs(intent))); |
| } else if (AudioManager.RINGER_MODE_CHANGED_ACTION.equals(action)) { |
| mHandler.sendMessage(mHandler.obtainMessage(MSG_RINGER_MODE_CHANGED, |
| intent.getIntExtra(AudioManager.EXTRA_RINGER_MODE, -1), 0)); |
| } else if (TelephonyManager.ACTION_PHONE_STATE_CHANGED.equals(action)) { |
| String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE); |
| mHandler.sendMessage(mHandler.obtainMessage(MSG_PHONE_STATE_CHANGED, state)); |
| } |
| } |
| }, filter); |
| } |
| |
| protected void handlePhoneStateChanged(String newState) { |
| if (DEBUG) Log.d(TAG, "handlePhoneStateChanged(" + newState + ")"); |
| for (int i = 0; i < mInfoCallbacks.size(); i++) { |
| mInfoCallbacks.get(i).onPhoneStateChanged(newState); |
| } |
| } |
| |
| protected void handleRingerModeChange(int mode) { |
| if (DEBUG) Log.d(TAG, "handleRingerModeChange(" + mode + ")"); |
| for (int i = 0; i < mInfoCallbacks.size(); i++) { |
| mInfoCallbacks.get(i).onRingerModeChanged(mode); |
| } |
| } |
| |
| /** |
| * Handle {@link #MSG_TIME_UPDATE} |
| */ |
| private void handleTimeUpdate() { |
| if (DEBUG) Log.d(TAG, "handleTimeUpdate"); |
| for (int i = 0; i < mInfoCallbacks.size(); i++) { |
| mInfoCallbacks.get(i).onTimeChanged(); |
| } |
| } |
| |
| /** |
| * Handle {@link #MSG_BATTERY_UPDATE} |
| */ |
| private void handleBatteryUpdate(int batteryStatus, int batteryLevel) { |
| if (DEBUG) Log.d(TAG, "handleBatteryUpdate"); |
| if (isBatteryUpdateInteresting(batteryStatus, batteryLevel)) { |
| mBatteryStatus = batteryStatus; |
| mBatteryLevel = batteryLevel; |
| final boolean pluggedIn = isPluggedIn(batteryStatus);; |
| for (int i = 0; i < mInfoCallbacks.size(); i++) { |
| mInfoCallbacks.get(i).onRefreshBatteryInfo( |
| shouldShowBatteryInfo(), pluggedIn, batteryLevel); |
| } |
| } |
| } |
| |
| /** |
| * Handle {@link #MSG_CARRIER_INFO_UPDATE} |
| */ |
| private void handleCarrierInfoUpdate() { |
| if (DEBUG) Log.d(TAG, "handleCarrierInfoUpdate: plmn = " + mTelephonyPlmn |
| + ", spn = " + mTelephonySpn); |
| |
| for (int i = 0; i < mInfoCallbacks.size(); i++) { |
| mInfoCallbacks.get(i).onRefreshCarrierInfo(mTelephonyPlmn, mTelephonySpn); |
| } |
| } |
| |
| /** |
| * Handle {@link #MSG_SIM_STATE_CHANGE} |
| */ |
| private void handleSimStateChange(SimArgs simArgs) { |
| final IccCard.State state = simArgs.simState; |
| |
| if (DEBUG) { |
| Log.d(TAG, "handleSimStateChange: intentValue = " + simArgs + " " |
| + "state resolved to " + state.toString()); |
| } |
| |
| if (state != IccCard.State.UNKNOWN && state != mSimState) { |
| mSimState = state; |
| for (int i = 0; i < mSimStateCallbacks.size(); i++) { |
| mSimStateCallbacks.get(i).onSimStateChanged(state); |
| } |
| } |
| } |
| |
| /** |
| * @param status One of the statuses of {@link android.os.BatteryManager} |
| * @return Whether the status maps to a status for being plugged in. |
| */ |
| private boolean isPluggedIn(int status) { |
| return status == BATTERY_STATUS_CHARGING || status == BATTERY_STATUS_FULL; |
| } |
| |
| private boolean isBatteryUpdateInteresting(int batteryStatus, int batteryLevel) { |
| // change in plug is always interesting |
| final boolean isPluggedIn = isPluggedIn(batteryStatus); |
| final boolean wasPluggedIn = isPluggedIn(mBatteryStatus); |
| final boolean stateChangedWhilePluggedIn = |
| wasPluggedIn == true && isPluggedIn == true && (mBatteryStatus != batteryStatus); |
| if (wasPluggedIn != isPluggedIn || stateChangedWhilePluggedIn) { |
| return true; |
| } |
| |
| // change in battery level while plugged in |
| if (isPluggedIn && mBatteryLevel != batteryLevel) { |
| return true; |
| } |
| |
| if (!isPluggedIn) { |
| // not plugged in and below threshold |
| if (isBatteryLow(batteryLevel) && batteryLevel != mBatteryLevel) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private boolean isBatteryLow(int batteryLevel) { |
| return batteryLevel < LOW_BATTERY_THRESHOLD; |
| } |
| |
| /** |
| * @param intent The intent with action {@link Telephony.Intents#SPN_STRINGS_UPDATED_ACTION} |
| * @return The string to use for the plmn, or null if it should not be shown. |
| */ |
| private CharSequence getTelephonyPlmnFrom(Intent intent) { |
| if (intent.getBooleanExtra(EXTRA_SHOW_PLMN, false)) { |
| final String plmn = intent.getStringExtra(EXTRA_PLMN); |
| if (plmn != null) { |
| return plmn; |
| } else { |
| return getDefaultPlmn(); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * @return The default plmn (no service) |
| */ |
| private CharSequence getDefaultPlmn() { |
| return mContext.getResources().getText( |
| R.string.lockscreen_carrier_default); |
| } |
| |
| /** |
| * @param intent The intent with action {@link Telephony.Intents#SPN_STRINGS_UPDATED_ACTION} |
| * @return The string to use for the plmn, or null if it should not be shown. |
| */ |
| private CharSequence getTelephonySpnFrom(Intent intent) { |
| if (intent.getBooleanExtra(EXTRA_SHOW_SPN, false)) { |
| final String spn = intent.getStringExtra(EXTRA_SPN); |
| if (spn != null) { |
| return spn; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Remove the given observer from being registered from any of the kinds |
| * of callbacks. |
| * @param observer The observer to remove (an instance of {@link ConfigurationChangeCallback}, |
| * {@link InfoCallback} or {@link SimStateCallback} |
| */ |
| public void removeCallback(Object observer) { |
| mInfoCallbacks.remove(observer); |
| mSimStateCallbacks.remove(observer); |
| } |
| |
| /** |
| * Callback for general information relevant to lock screen. |
| */ |
| interface InfoCallback { |
| void onRefreshBatteryInfo(boolean showBatteryInfo, boolean pluggedIn, int batteryLevel); |
| void onTimeChanged(); |
| |
| /** |
| * @param plmn The operator name of the registered network. May be null if it shouldn't |
| * be displayed. |
| * @param spn The service provider name. May be null if it shouldn't be displayed. |
| */ |
| void onRefreshCarrierInfo(CharSequence plmn, CharSequence spn); |
| |
| /** |
| * Called when the ringer mode changes. |
| * @param state the current ringer state, as defined in |
| * {@link AudioManager#RINGER_MODE_CHANGED_ACTION} |
| */ |
| void onRingerModeChanged(int state); |
| |
| /** |
| * Called when the phone state changes. String will be one of: |
| * {@link TelephonyManager#EXTRA_STATE_IDLE} |
| * {@link TelephonyManager@EXTRA_STATE_RINGING} |
| * {@link TelephonyManager#EXTRA_STATE_OFFHOOK |
| */ |
| void onPhoneStateChanged(String newState); |
| } |
| |
| /** |
| * Callback to notify of sim state change. |
| */ |
| interface SimStateCallback { |
| void onSimStateChanged(IccCard.State simState); |
| } |
| |
| /** |
| * Register to receive notifications about general keyguard information |
| * (see {@link InfoCallback}. |
| * @param callback The callback. |
| */ |
| public void registerInfoCallback(InfoCallback callback) { |
| if (!mInfoCallbacks.contains(callback)) { |
| mInfoCallbacks.add(callback); |
| } else { |
| Log.e(TAG, "Object tried to add another INFO callback", new Exception("Whoops")); |
| } |
| } |
| |
| /** |
| * Register to be notified of sim state changes. |
| * @param callback The callback. |
| */ |
| public void registerSimStateCallback(SimStateCallback callback) { |
| if (!mSimStateCallbacks.contains(callback)) { |
| mSimStateCallbacks.add(callback); |
| } else { |
| Log.e(TAG, "Object tried to add another SIM callback", new Exception("Whoops")); |
| } |
| } |
| |
| public IccCard.State getSimState() { |
| return mSimState; |
| } |
| |
| /** |
| * Report that the user succesfully entered the sim pin so we |
| * have the information earlier than waiting for the intent |
| * broadcast from the telephony code. |
| */ |
| public void reportSimPinUnlocked() { |
| mSimState = IccCard.State.READY; |
| } |
| |
| public boolean isKeyguardBypassEnabled() { |
| return mKeyguardBypassEnabled; |
| } |
| |
| public boolean isDevicePluggedIn() { |
| return isPluggedIn(mBatteryStatus); |
| } |
| |
| public boolean isDeviceCharged() { |
| return mBatteryStatus == BatteryManager.BATTERY_STATUS_FULL |
| || mBatteryLevel >= 100; // in case a particular device doesn't flag it |
| } |
| |
| public int getBatteryLevel() { |
| return mBatteryLevel; |
| } |
| |
| public boolean shouldShowBatteryInfo() { |
| return isPluggedIn(mBatteryStatus) || isBatteryLow(mBatteryLevel); |
| } |
| |
| public CharSequence getTelephonyPlmn() { |
| return mTelephonyPlmn; |
| } |
| |
| public CharSequence getTelephonySpn() { |
| return mTelephonySpn; |
| } |
| |
| /** |
| * @return Whether the device is provisioned (whether they have gone through |
| * the setup wizard) |
| */ |
| public boolean isDeviceProvisioned() { |
| return mDeviceProvisioned; |
| } |
| |
| public int getFailedAttempts() { |
| return mFailedAttempts; |
| } |
| |
| public void clearFailedAttempts() { |
| mFailedAttempts = 0; |
| } |
| |
| public void reportFailedAttempt() { |
| mFailedAttempts++; |
| } |
| } |