| /* |
| * 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.keyguard; |
| |
| import static com.android.systemui.DejankUtils.whitelistIpcs; |
| |
| import android.app.ActivityOptions; |
| import android.app.ActivityTaskManager; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.res.Configuration; |
| import android.os.PowerManager; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.telecom.TelecomManager; |
| import android.telephony.TelephonyManager; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.ViewConfiguration; |
| import android.widget.Button; |
| |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| import com.android.internal.util.EmergencyAffordanceManager; |
| import com.android.internal.widget.LockPatternUtils; |
| import com.android.systemui.Dependency; |
| import com.android.systemui.util.EmergencyDialerConstants; |
| |
| /** |
| * This class implements a smart emergency button that updates itself based |
| * on telephony state. When the phone is idle, it is an emergency call button. |
| * When there's a call in progress, it presents an appropriate message and |
| * allows the user to return to the call. |
| */ |
| public class EmergencyButton extends Button { |
| |
| private static final String LOG_TAG = "EmergencyButton"; |
| private final EmergencyAffordanceManager mEmergencyAffordanceManager; |
| |
| private int mDownX; |
| private int mDownY; |
| KeyguardUpdateMonitorCallback mInfoCallback = new KeyguardUpdateMonitorCallback() { |
| |
| @Override |
| public void onSimStateChanged(int subId, int slotId, int simState) { |
| updateEmergencyCallButton(); |
| } |
| |
| @Override |
| public void onPhoneStateChanged(int phoneState) { |
| updateEmergencyCallButton(); |
| } |
| }; |
| private boolean mLongPressWasDragged; |
| |
| public interface EmergencyButtonCallback { |
| public void onEmergencyButtonClickedWhenInCall(); |
| } |
| |
| private LockPatternUtils mLockPatternUtils; |
| private PowerManager mPowerManager; |
| private EmergencyButtonCallback mEmergencyButtonCallback; |
| |
| private final boolean mIsVoiceCapable; |
| private final boolean mEnableEmergencyCallWhileSimLocked; |
| |
| public EmergencyButton(Context context) { |
| this(context, null); |
| } |
| |
| public EmergencyButton(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mIsVoiceCapable = getTelephonyManager().isVoiceCapable(); |
| mEnableEmergencyCallWhileSimLocked = mContext.getResources().getBoolean( |
| com.android.internal.R.bool.config_enable_emergency_call_while_sim_locked); |
| mEmergencyAffordanceManager = new EmergencyAffordanceManager(context); |
| } |
| |
| private TelephonyManager getTelephonyManager() { |
| return (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| Dependency.get(KeyguardUpdateMonitor.class).registerCallback(mInfoCallback); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| Dependency.get(KeyguardUpdateMonitor.class).removeCallback(mInfoCallback); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| mLockPatternUtils = new LockPatternUtils(mContext); |
| mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); |
| setOnClickListener(v -> takeEmergencyCallAction()); |
| if (mEmergencyAffordanceManager.needsEmergencyAffordance()) { |
| setOnLongClickListener(v -> { |
| if (!mLongPressWasDragged |
| && mEmergencyAffordanceManager.needsEmergencyAffordance()) { |
| mEmergencyAffordanceManager.performEmergencyCall(); |
| return true; |
| } |
| return false; |
| }); |
| } |
| whitelistIpcs(this::updateEmergencyCallButton); |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent event) { |
| final int x = (int) event.getX(); |
| final int y = (int) event.getY(); |
| if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { |
| mDownX = x; |
| mDownY = y; |
| mLongPressWasDragged = false; |
| } else { |
| final int xDiff = Math.abs(x - mDownX); |
| final int yDiff = Math.abs(y - mDownY); |
| int touchSlop = ViewConfiguration.get(mContext).getScaledTouchSlop(); |
| if (Math.abs(yDiff) > touchSlop || Math.abs(xDiff) > touchSlop) { |
| mLongPressWasDragged = true; |
| } |
| } |
| return super.onTouchEvent(event); |
| } |
| |
| @Override |
| public boolean performLongClick() { |
| return super.performLongClick(); |
| } |
| |
| @Override |
| protected void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| updateEmergencyCallButton(); |
| } |
| |
| /** |
| * Shows the emergency dialer or returns the user to the existing call. |
| */ |
| public void takeEmergencyCallAction() { |
| MetricsLogger.action(mContext, MetricsEvent.ACTION_EMERGENCY_CALL); |
| if (mPowerManager != null) { |
| mPowerManager.userActivity(SystemClock.uptimeMillis(), true); |
| } |
| try { |
| ActivityTaskManager.getService().stopSystemLockTaskMode(); |
| } catch (RemoteException e) { |
| Slog.w(LOG_TAG, "Failed to stop app pinning"); |
| } |
| if (isInCall()) { |
| resumeCall(); |
| if (mEmergencyButtonCallback != null) { |
| mEmergencyButtonCallback.onEmergencyButtonClickedWhenInCall(); |
| } |
| } else { |
| KeyguardUpdateMonitor updateMonitor = Dependency.get(KeyguardUpdateMonitor.class); |
| if (updateMonitor != null) { |
| updateMonitor.reportEmergencyCallAction(true /* bypassHandler */); |
| } else { |
| Log.w(LOG_TAG, "KeyguardUpdateMonitor was null, launching intent anyway."); |
| } |
| TelecomManager telecomManager = getTelecommManager(); |
| if (telecomManager == null) { |
| Log.wtf(LOG_TAG, "TelecomManager was null, cannot launch emergency dialer"); |
| return; |
| } |
| Intent emergencyDialIntent = |
| telecomManager.createLaunchEmergencyDialerIntent(null /* number*/) |
| .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
| | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS |
| | Intent.FLAG_ACTIVITY_CLEAR_TOP) |
| .putExtra(EmergencyDialerConstants.EXTRA_ENTRY_TYPE, |
| EmergencyDialerConstants.ENTRY_TYPE_LOCKSCREEN_BUTTON); |
| |
| getContext().startActivityAsUser(emergencyDialIntent, |
| ActivityOptions.makeCustomAnimation(getContext(), 0, 0).toBundle(), |
| new UserHandle(KeyguardUpdateMonitor.getCurrentUser())); |
| } |
| } |
| |
| private void updateEmergencyCallButton() { |
| boolean visible = false; |
| if (mIsVoiceCapable) { |
| // Emergency calling requires voice capability. |
| if (isInCall()) { |
| visible = true; // always show "return to call" if phone is off-hook |
| } else { |
| final boolean simLocked = Dependency.get(KeyguardUpdateMonitor.class) |
| .isSimPinVoiceSecure(); |
| if (simLocked) { |
| // Some countries can't handle emergency calls while SIM is locked. |
| visible = mEnableEmergencyCallWhileSimLocked; |
| } else { |
| // Only show if there is a secure screen (pin/pattern/SIM pin/SIM puk); |
| visible = mLockPatternUtils.isSecure(KeyguardUpdateMonitor.getCurrentUser()); |
| } |
| } |
| } |
| if (visible) { |
| setVisibility(View.VISIBLE); |
| |
| int textId; |
| if (isInCall()) { |
| textId = com.android.internal.R.string.lockscreen_return_to_call; |
| } else { |
| textId = com.android.internal.R.string.lockscreen_emergency_call; |
| } |
| setText(textId); |
| } else { |
| setVisibility(View.GONE); |
| } |
| } |
| |
| public void setCallback(EmergencyButtonCallback callback) { |
| mEmergencyButtonCallback = callback; |
| } |
| |
| /** |
| * Resumes a call in progress. |
| */ |
| private void resumeCall() { |
| getTelecommManager().showInCallScreen(false); |
| } |
| |
| /** |
| * @return {@code true} if there is a call currently in progress. |
| */ |
| private boolean isInCall() { |
| return getTelecommManager().isInCall(); |
| } |
| |
| private TelecomManager getTelecommManager() { |
| return (TelecomManager) mContext.getSystemService(Context.TELECOM_SERVICE); |
| } |
| } |