Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 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 | |
Jim Miller | 5ecd811 | 2013-01-09 18:50:26 -0800 | [diff] [blame] | 17 | package com.android.keyguard; |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.Intent; |
| 21 | import android.os.PowerManager; |
| 22 | import android.os.SystemClock; |
Jim Miller | 450a3a1 | 2013-03-12 18:54:44 -0700 | [diff] [blame] | 23 | import android.os.UserHandle; |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 24 | import android.telephony.TelephonyManager; |
| 25 | import android.util.AttributeSet; |
| 26 | import android.view.View; |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 27 | import android.widget.Button; |
| 28 | |
| 29 | import com.android.internal.telephony.IccCardConstants.State; |
| 30 | import com.android.internal.widget.LockPatternUtils; |
| 31 | |
| 32 | /** |
| 33 | * This class implements a smart emergency button that updates itself based |
| 34 | * on telephony state. When the phone is idle, it is an emergency call button. |
| 35 | * When there's a call in progress, it presents an appropriate message and |
| 36 | * allows the user to return to the call. |
| 37 | */ |
| 38 | public class EmergencyButton extends Button { |
| 39 | |
| 40 | private static final int EMERGENCY_CALL_TIMEOUT = 10000; // screen timeout after starting e.d. |
| 41 | private static final String ACTION_EMERGENCY_DIAL = "com.android.phone.EmergencyDialer.DIAL"; |
| 42 | |
| 43 | KeyguardUpdateMonitorCallback mInfoCallback = new KeyguardUpdateMonitorCallback() { |
| 44 | |
| 45 | @Override |
| 46 | public void onSimStateChanged(State simState) { |
| 47 | int phoneState = KeyguardUpdateMonitor.getInstance(mContext).getPhoneState(); |
| 48 | updateEmergencyCallButton(simState, phoneState); |
| 49 | } |
| 50 | |
| 51 | void onPhoneStateChanged(int phoneState) { |
| 52 | State simState = KeyguardUpdateMonitor.getInstance(mContext).getSimState(); |
| 53 | updateEmergencyCallButton(simState, phoneState); |
| 54 | }; |
| 55 | }; |
| 56 | private LockPatternUtils mLockPatternUtils; |
| 57 | private PowerManager mPowerManager; |
| 58 | |
| 59 | public EmergencyButton(Context context) { |
| 60 | this(context, null); |
| 61 | } |
| 62 | |
| 63 | public EmergencyButton(Context context, AttributeSet attrs) { |
| 64 | super(context, attrs); |
| 65 | } |
| 66 | |
| 67 | @Override |
Jim Miller | 0928e01 | 2012-11-06 18:43:22 -0800 | [diff] [blame] | 68 | protected void onAttachedToWindow() { |
| 69 | super.onAttachedToWindow(); |
| 70 | KeyguardUpdateMonitor.getInstance(mContext).registerCallback(mInfoCallback); |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | protected void onDetachedFromWindow() { |
| 75 | super.onDetachedFromWindow(); |
| 76 | KeyguardUpdateMonitor.getInstance(mContext).removeCallback(mInfoCallback); |
| 77 | } |
| 78 | |
| 79 | @Override |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 80 | protected void onFinishInflate() { |
| 81 | super.onFinishInflate(); |
| 82 | mLockPatternUtils = new LockPatternUtils(mContext); |
| 83 | mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); |
| 84 | setOnClickListener(new OnClickListener() { |
| 85 | public void onClick(View v) { |
| 86 | takeEmergencyCallAction(); |
| 87 | } |
| 88 | }); |
| 89 | int phoneState = KeyguardUpdateMonitor.getInstance(mContext).getPhoneState(); |
| 90 | State simState = KeyguardUpdateMonitor.getInstance(mContext).getSimState(); |
| 91 | updateEmergencyCallButton(simState, phoneState); |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * Shows the emergency dialer or returns the user to the existing call. |
| 96 | */ |
| 97 | public void takeEmergencyCallAction() { |
| 98 | // TODO: implement a shorter timeout once new PowerManager API is ready. |
| 99 | // should be the equivalent to the old userActivity(EMERGENCY_CALL_TIMEOUT) |
| 100 | mPowerManager.userActivity(SystemClock.uptimeMillis(), true); |
| 101 | if (TelephonyManager.getDefault().getCallState() |
| 102 | == TelephonyManager.CALL_STATE_OFFHOOK) { |
| 103 | mLockPatternUtils.resumeCall(); |
| 104 | } else { |
| 105 | Intent intent = new Intent(ACTION_EMERGENCY_DIAL); |
| 106 | intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
| 107 | | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); |
Jim Miller | 450a3a1 | 2013-03-12 18:54:44 -0700 | [diff] [blame] | 108 | getContext().startActivityAsUser(intent, |
| 109 | new UserHandle(mLockPatternUtils.getCurrentUser())); |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 110 | } |
| 111 | } |
| 112 | |
| 113 | private void updateEmergencyCallButton(State simState, int phoneState) { |
Jim Miller | 3efe106 | 2012-09-28 16:59:31 -0700 | [diff] [blame] | 114 | boolean enabled = false; |
| 115 | if (phoneState == TelephonyManager.CALL_STATE_OFFHOOK) { |
| 116 | enabled = true; // always show "return to call" if phone is off-hook |
| 117 | } else if (mLockPatternUtils.isEmergencyCallCapable()) { |
| 118 | boolean simLocked = KeyguardUpdateMonitor.getInstance(mContext).isSimLocked(); |
| 119 | if (simLocked) { |
| 120 | // Some countries can't handle emergency calls while SIM is locked. |
| 121 | enabled = mLockPatternUtils.isEmergencyCallEnabledWhileSimLocked(); |
| 122 | } else { |
| 123 | // True if we need to show a secure screen (pin/pattern/SIM pin/SIM puk); |
| 124 | // hides emergency button on "Slide" screen if device is not secure. |
Patrick Brady | b6a1ea7 | 2012-10-11 21:09:14 -0700 | [diff] [blame] | 125 | enabled = mLockPatternUtils.isSecure(); |
Jim Miller | 3efe106 | 2012-09-28 16:59:31 -0700 | [diff] [blame] | 126 | } |
Jim Miller | 109f1fd | 2012-09-19 20:44:16 -0700 | [diff] [blame] | 127 | } |
| 128 | mLockPatternUtils.updateEmergencyCallButtonState(this, phoneState, enabled, |
| 129 | KeyguardViewManager.USE_UPPER_CASE, false); |
| 130 | } |
| 131 | |
| 132 | } |