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 package com.android.keyguard;
17 
18 import android.content.Context;
19 import android.content.res.Configuration;
20 import android.content.res.TypedArray;
21 import android.graphics.drawable.Drawable;
22 import android.graphics.drawable.RippleDrawable;
23 import android.os.PowerManager;
24 import android.os.SystemClock;
25 import android.util.AttributeSet;
26 import android.view.HapticFeedbackConstants;
27 import android.view.LayoutInflater;
28 import android.view.MotionEvent;
29 import android.view.View;
30 import android.view.ViewGroup;
31 import android.view.accessibility.AccessibilityManager;
32 import android.widget.TextView;
33 
34 import androidx.annotation.Nullable;
35 
36 import com.android.internal.widget.LockPatternUtils;
37 import com.android.settingslib.Utils;
38 import com.android.systemui.R;
39 
40 public class NumPadKey extends ViewGroup {
41     // list of "ABC", etc per digit, starting with '0'
42     static String sKlondike[];
43 
44     private final TextView mDigitText;
45     private final TextView mKlondikeText;
46     private final LockPatternUtils mLockPatternUtils;
47     private final PowerManager mPM;
48 
49     private int mDigit = -1;
50     private int mTextViewResId;
51     private PasswordTextView mTextView;
52 
53     @Nullable
54     private NumPadAnimator mAnimator;
55     private int mOrientation;
56 
57     private View.OnClickListener mListener = new View.OnClickListener() {
58         @Override
59         public void onClick(View thisView) {
60             if (mTextView == null && mTextViewResId > 0) {
61                 final View v = NumPadKey.this.getRootView().findViewById(mTextViewResId);
62                 if (v != null && v instanceof PasswordTextView) {
63                     mTextView = (PasswordTextView) v;
64                 }
65             }
66             if (mTextView != null && mTextView.isEnabled()) {
67                 mTextView.append(Character.forDigit(mDigit, 10));
68             }
69             userActivity();
70         }
71     };
72 
userActivity()73     public void userActivity() {
74         mPM.userActivity(SystemClock.uptimeMillis(), false);
75     }
76 
NumPadKey(Context context)77     public NumPadKey(Context context) {
78         this(context, null);
79     }
80 
NumPadKey(Context context, AttributeSet attrs)81     public NumPadKey(Context context, AttributeSet attrs) {
82         this(context, attrs, R.attr.numPadKeyStyle);
83     }
84 
NumPadKey(Context context, AttributeSet attrs, int defStyle)85     public NumPadKey(Context context, AttributeSet attrs, int defStyle) {
86         this(context, attrs, defStyle, R.layout.keyguard_num_pad_key);
87     }
88 
NumPadKey(Context context, AttributeSet attrs, int defStyle, int contentResource)89     protected NumPadKey(Context context, AttributeSet attrs, int defStyle, int contentResource) {
90         super(context, attrs, defStyle);
91         setFocusable(true);
92 
93         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.NumPadKey, defStyle,
94                 contentResource);
95 
96         try {
97             mDigit = a.getInt(R.styleable.NumPadKey_digit, mDigit);
98             mTextViewResId = a.getResourceId(R.styleable.NumPadKey_textView, 0);
99         } finally {
100             a.recycle();
101         }
102 
103         setOnClickListener(mListener);
104         setOnHoverListener(new LiftToActivateListener(
105                 (AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE)));
106 
107         mLockPatternUtils = new LockPatternUtils(context);
108         mPM = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
109         LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(
110                 Context.LAYOUT_INFLATER_SERVICE);
111         inflater.inflate(contentResource, this, true);
112 
113         mDigitText = (TextView) findViewById(R.id.digit_text);
114         mDigitText.setText(Integer.toString(mDigit));
115         mKlondikeText = (TextView) findViewById(R.id.klondike_text);
116 
117         if (mDigit >= 0) {
118             if (sKlondike == null) {
119                 sKlondike = getResources().getStringArray(R.array.lockscreen_num_pad_klondike);
120             }
121             if (sKlondike != null && sKlondike.length > mDigit) {
122                 String klondike = sKlondike[mDigit];
123                 final int len = klondike.length();
124                 if (len > 0) {
125                     mKlondikeText.setText(klondike);
126                 } else if (mKlondikeText.getVisibility() != View.GONE) {
127                     mKlondikeText.setVisibility(View.INVISIBLE);
128                 }
129             }
130         }
131 
132         setContentDescription(mDigitText.getText().toString());
133 
134         Drawable background = getBackground();
135         if (background instanceof RippleDrawable) {
136             mAnimator = new NumPadAnimator(context, (RippleDrawable) background,
137                     R.style.NumPadKey);
138         } else {
139             mAnimator = null;
140         }
141     }
142 
143     @Override
onConfigurationChanged(Configuration newConfig)144     protected void onConfigurationChanged(Configuration newConfig) {
145         mOrientation = newConfig.orientation;
146     }
147 
148     /**
149      * Reload colors from resources.
150      **/
reloadColors()151     public void reloadColors() {
152         int textColor = Utils.getColorAttr(getContext(), android.R.attr.textColorPrimary)
153                 .getDefaultColor();
154         int klondikeColor = Utils.getColorAttr(getContext(), android.R.attr.textColorSecondary)
155                 .getDefaultColor();
156         mDigitText.setTextColor(textColor);
157         mKlondikeText.setTextColor(klondikeColor);
158 
159         if (mAnimator != null) mAnimator.reloadColors(getContext());
160     }
161 
162     @Override
onTouchEvent(MotionEvent event)163     public boolean onTouchEvent(MotionEvent event) {
164         if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
165             doHapticKeyClick();
166             if (mAnimator != null) mAnimator.start();
167         }
168 
169         return super.onTouchEvent(event);
170     }
171 
172     @Override
onMeasure(int widthMeasureSpec, int heightMeasureSpec)173     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
174         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
175         measureChildren(widthMeasureSpec, heightMeasureSpec);
176 
177         // Set width/height to the same value to ensure a smooth circle for the bg, but shrink
178         // the height to match the old pin bouncer.
179         // This is only used for PIN/PUK; the main PIN pad now uses ConstraintLayout, which will
180         // force our width/height to conform to the ratio in the layout.
181         int width = getMeasuredWidth();
182 
183         boolean shortenHeight = mAnimator == null
184                 || mOrientation == Configuration.ORIENTATION_LANDSCAPE;
185         int height = shortenHeight ? (int) (width * .66f) : width;
186 
187         setMeasuredDimension(getMeasuredWidth(), height);
188     }
189 
190     @Override
onLayout(boolean changed, int l, int t, int r, int b)191     protected void onLayout(boolean changed, int l, int t, int r, int b) {
192         int digitHeight = mDigitText.getMeasuredHeight();
193         int klondikeHeight = mKlondikeText.getMeasuredHeight();
194         int totalHeight = digitHeight + klondikeHeight;
195         int top = getHeight() / 2 - totalHeight / 2;
196         int centerX = getWidth() / 2;
197         int left = centerX - mDigitText.getMeasuredWidth() / 2;
198         int bottom = top + digitHeight;
199         mDigitText.layout(left, top, left + mDigitText.getMeasuredWidth(), bottom);
200         top = (int) (bottom - klondikeHeight * 0.35f);
201         bottom = top + klondikeHeight;
202 
203         left = centerX - mKlondikeText.getMeasuredWidth() / 2;
204         mKlondikeText.layout(left, top, left + mKlondikeText.getMeasuredWidth(), bottom);
205 
206         if (mAnimator != null) mAnimator.onLayout(b - t);
207     }
208 
209     @Override
hasOverlappingRendering()210     public boolean hasOverlappingRendering() {
211         return false;
212     }
213 
214     // Cause a VIRTUAL_KEY vibration
doHapticKeyClick()215     public void doHapticKeyClick() {
216         if (mLockPatternUtils.isTactileFeedbackEnabled()) {
217             performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY,
218                     HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING
219                     | HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING);
220         }
221     }
222 }
223