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.MotionEvent; 27 import android.view.View; 28 import android.view.ViewGroup; 29 import android.widget.TextView; 30 31 import com.android.internal.widget.LockPatternUtils; 32 33 public class NumPadKey extends ViewGroup { 34 // list of "ABC", etc per digit, starting with '0' 35 static String sKlondike[]; 36 37 private int mDigit = -1; 38 private int mTextViewResId; 39 private PasswordTextView mTextView; 40 private TextView mDigitText; 41 private TextView mKlondikeText; 42 private boolean mEnableHaptics; 43 private PowerManager mPM; 44 45 private View.OnClickListener mListener = new View.OnClickListener() { 46 @Override 47 public void onClick(View thisView) { 48 if (mTextView == null && mTextViewResId > 0) { 49 final View v = NumPadKey.this.getRootView().findViewById(mTextViewResId); 50 if (v != null && v instanceof PasswordTextView) { 51 mTextView = (PasswordTextView) v; 52 } 53 } 54 if (mTextView != null && mTextView.isEnabled()) { 55 mTextView.append(Character.forDigit(mDigit, 10)); 56 } 57 userActivity();; 58 } 59 }; 60 61 public void userActivity() { 62 mPM.userActivity(SystemClock.uptimeMillis(), false); 63 } 64 65 public NumPadKey(Context context) { 66 this(context, null); 67 } 68 69 public NumPadKey(Context context, AttributeSet attrs) { 70 this(context, attrs, 0); 71 } 72 73 public NumPadKey(Context context, AttributeSet attrs, int defStyle) { 74 this(context, attrs, defStyle, R.layout.keyguard_num_pad_key); 75 } 76 77 protected NumPadKey(Context context, AttributeSet attrs, int defStyle, int contentResource) { 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(contentResource, 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 a = context.obtainStyledAttributes(attrs, android.R.styleable.View); 121 if (!a.hasValueOrEmpty(android.R.styleable.View_background)) { 122 setBackground(mContext.getDrawable(R.drawable.ripple_drawable)); 123 } 124 a.recycle(); 125 setContentDescription(mDigitText.getText().toString()); 126 } 127 128 @Override 129 public boolean onTouchEvent(MotionEvent event) { 130 if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 131 doHapticKeyClick(); 132 } 133 return super.onTouchEvent(event); 134 } 135 136 @Override 137 public void onDetachedFromWindow() { 138 super.onDetachedFromWindow(); 139 140 // Reset the "announced headset" flag when detached. 141 ObscureSpeechDelegate.sAnnouncedHeadset = false; 142 } 143 144 @Override 145 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 146 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 147 measureChildren(widthMeasureSpec, heightMeasureSpec); 148 } 149 150 @Override 151 protected void onLayout(boolean changed, int l, int t, int r, int b) { 152 int digitHeight = mDigitText.getMeasuredHeight(); 153 int klondikeHeight = mKlondikeText.getMeasuredHeight(); 154 int totalHeight = digitHeight + klondikeHeight; 155 int top = getHeight() / 2 - totalHeight / 2; 156 int centerX = getWidth() / 2; 157 int left = centerX - mDigitText.getMeasuredWidth() / 2; 158 int bottom = top + digitHeight; 159 mDigitText.layout(left, top, left + mDigitText.getMeasuredWidth(), bottom); 160 top = (int) (bottom - klondikeHeight * 0.35f); 161 bottom = top + klondikeHeight; 162 163 left = centerX - mKlondikeText.getMeasuredWidth() / 2; 164 mKlondikeText.layout(left, top, left + mKlondikeText.getMeasuredWidth(), bottom); 165 } 166 167 @Override 168 public boolean hasOverlappingRendering() { 169 return false; 170 } 171 172 // Cause a VIRTUAL_KEY vibration 173 public void doHapticKeyClick() { 174 if (mEnableHaptics) { 175 performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY, 176 HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING 177 | HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING); 178 } 179 } 180 } 181
