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.content.res.TypedArray; 21 import android.graphics.drawable.Drawable; 22 import android.os.Debug; 23 import android.os.PowerManager; 24 import android.os.SystemClock; 25 import android.util.AttributeSet; 26 import android.view.HapticFeedbackConstants; 27 import android.view.KeyEvent; 28 import android.view.LayoutInflater; 29 import android.view.View; 30 import android.view.ViewGroup; 31 import android.view.accessibility.AccessibilityEvent; 32 import android.widget.TextView; 33 34 import com.android.internal.widget.LockPatternUtils; 35 36 public class NumPadKey extends ViewGroup { 37 // list of "ABC", etc per digit, starting with '0' 38 static String sKlondike[]; 39 40 private int mDigit = -1; 41 private int mTextViewResId; 42 private PasswordTextView mTextView; 43 private TextView mDigitText; 44 private TextView mKlondikeText; 45 private boolean mEnableHaptics; 46 private PowerManager mPM; 47 48 private View.OnClickListener mListener = new View.OnClickListener() { 49 @Override 50 public void onClick(View thisView) { 51 if (mTextView == null && mTextViewResId > 0) { 52 final View v = NumPadKey.this.getRootView().findViewById(mTextViewResId); 53 if (v != null && v instanceof PasswordTextView) { 54 mTextView = (PasswordTextView) v; 55 } 56 } 57 if (mTextView != null && mTextView.isEnabled()) { 58 mTextView.append(Character.forDigit(mDigit, 10)); 59 } 60 userActivity(); 61 doHapticKeyClick(); 62 } 63 }; 64 65 public void userActivity() { 66 mPM.userActivity(SystemClock.uptimeMillis(), false); 67 } 68 69 public NumPadKey(Context context) { 70 this(context, null); 71 } 72 73 public NumPadKey(Context context, AttributeSet attrs) { 74 this(context, attrs, 0); 75 } 76 77 public NumPadKey(Context context, AttributeSet attrs, int defStyle) { 78 super(context, attrs, defStyle); 79 setFocusable(true); 80 81 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.NumPadKey); 82 83 try { 84 mDigit = a.getInt(R.styleable.NumPadKey_digit, mDigit); 85 mTextViewResId = a.getResourceId(R.styleable.NumPadKey_textView, 0); 86 } finally { 87 a.recycle(); 88 } 89 90 setOnClickListener(mListener); 91 setOnHoverListener(new LiftToActivateListener(context)); 92 setAccessibilityDelegate(new ObscureSpeechDelegate(context)); 93 94 mEnableHaptics = new LockPatternUtils(context).isTactileFeedbackEnabled(); 95 96 mPM = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 97 LayoutInflater inflater = (LayoutInflater) getContext().getSystemService( 98 Context.LAYOUT_INFLATER_SERVICE); 99 inflater.inflate(R.layout.keyguard_num_pad_key, this, true); 100 101 mDigitText = (TextView) findViewById(R.id.digit_text); 102 mDigitText.setText(Integer.toString(mDigit)); 103 mKlondikeText = (TextView) findViewById(R.id.klondike_text); 104 105 if (mDigit >= 0) { 106 if (sKlondike == null) { 107 sKlondike = getResources().getStringArray(R.array.lockscreen_num_pad_klondike); 108 } 109 if (sKlondike != null && sKlondike.length > mDigit) { 110 String klondike = sKlondike[mDigit]; 111 final int len = klondike.length(); 112 if (len > 0) { 113 mKlondikeText.setText(klondike); 114 } else { 115 mKlondikeText.setVisibility(View.INVISIBLE); 116 } 117 } 118 } 119 120 setBackground(mContext.getDrawable(R.drawable.ripple_drawable)); 121 setContentDescription(mDigitText.getText().toString() + mKlondikeText.getText().toString()); 122 } 123 124 @Override 125 public void onDetachedFromWindow() { 126 super.onDetachedFromWindow(); 127 128 // Reset the "announced headset" flag when detached. 129 ObscureSpeechDelegate.sAnnouncedHeadset = false; 130 } 131 132 @Override 133 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 134 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 135 measureChildren(widthMeasureSpec, heightMeasureSpec); 136 } 137 138 @Override 139 protected void onLayout(boolean changed, int l, int t, int r, int b) { 140 int digitHeight = mDigitText.getMeasuredHeight(); 141 int klondikeHeight = mKlondikeText.getMeasuredHeight(); 142 int totalHeight = digitHeight + klondikeHeight; 143 int top = getHeight() / 2 - totalHeight / 2; 144 int centerX = getWidth() / 2; 145 int left = centerX - mDigitText.getMeasuredWidth() / 2; 146 int bottom = top + digitHeight; 147 mDigitText.layout(left, top, left + mDigitText.getMeasuredWidth(), bottom); 148 top = (int) (bottom - klondikeHeight * 0.35f); 149 bottom = top + klondikeHeight; 150 151 left = centerX - mKlondikeText.getMeasuredWidth() / 2; 152 mKlondikeText.layout(left, top, left + mKlondikeText.getMeasuredWidth(), bottom); 153 } 154 155 @Override 156 public boolean hasOverlappingRendering() { 157 return false; 158 } 159 160 // Cause a VIRTUAL_KEY vibration 161 public void doHapticKeyClick() { 162 if (mEnableHaptics) { 163 performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY, 164 HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING 165 | HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING); 166 } 167 } 168 } 169