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