1 /* 2 * Copyright (C) 2012 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.keyguard; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.view.HapticFeedbackConstants; 22 import android.view.KeyEvent; 23 import android.view.View; 24 25 import com.android.internal.widget.LockscreenCredential; 26 import com.android.systemui.R; 27 28 /** 29 * Base class for PIN and password unlock screens. 30 */ 31 public abstract class KeyguardAbsKeyInputView extends KeyguardInputView { 32 protected View mEcaView; 33 protected boolean mEnableHaptics; 34 35 // To avoid accidental lockout due to events while the device in in the pocket, ignore 36 // any passwords with length less than or equal to this length. 37 protected static final int MINIMUM_PASSWORD_LENGTH_BEFORE_REPORT = 3; 38 private KeyDownListener mKeyDownListener; 39 KeyguardAbsKeyInputView(Context context)40 public KeyguardAbsKeyInputView(Context context) { 41 this(context, null); 42 } 43 KeyguardAbsKeyInputView(Context context, AttributeSet attrs)44 public KeyguardAbsKeyInputView(Context context, AttributeSet attrs) { 45 super(context, attrs); 46 } 47 setEnableHaptics(boolean enableHaptics)48 void setEnableHaptics(boolean enableHaptics) { 49 mEnableHaptics = enableHaptics; 50 } 51 getPasswordTextViewId()52 protected abstract int getPasswordTextViewId(); resetState()53 protected abstract void resetState(); 54 55 @Override onFinishInflate()56 protected void onFinishInflate() { 57 mEcaView = findViewById(R.id.keyguard_selector_fade_container); 58 } 59 60 /* 61 * Override this if you have a different string for "wrong password" 62 * 63 * Note that PIN/PUK have their own implementation of verifyPasswordAndUnlock and so don't need this 64 */ getWrongPasswordStringId()65 protected int getWrongPasswordStringId() { 66 return R.string.kg_wrong_password; 67 } 68 resetPasswordText(boolean animate, boolean announce)69 protected abstract void resetPasswordText(boolean animate, boolean announce); getEnteredCredential()70 protected abstract LockscreenCredential getEnteredCredential(); setPasswordEntryEnabled(boolean enabled)71 protected abstract void setPasswordEntryEnabled(boolean enabled); setPasswordEntryInputEnabled(boolean enabled)72 protected abstract void setPasswordEntryInputEnabled(boolean enabled); 73 74 @Override onKeyDown(int keyCode, KeyEvent event)75 public boolean onKeyDown(int keyCode, KeyEvent event) { 76 return mKeyDownListener != null && mKeyDownListener.onKeyDown(keyCode, event); 77 } 78 getPromptReasonStringRes(int reason)79 protected abstract int getPromptReasonStringRes(int reason); 80 81 // Cause a VIRTUAL_KEY vibration doHapticKeyClick()82 public void doHapticKeyClick() { 83 if (mEnableHaptics) { 84 performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY, 85 HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING 86 | HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING); 87 } 88 } 89 setKeyDownListener(KeyDownListener keyDownListener)90 public void setKeyDownListener(KeyDownListener keyDownListener) { 91 mKeyDownListener = keyDownListener; 92 } 93 94 public interface KeyDownListener { onKeyDown(int keyCode, KeyEvent keyEvent)95 boolean onKeyDown(int keyCode, KeyEvent keyEvent); 96 } 97 } 98 99