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      1 /*
      2  * Copyright (C) 2015 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.settings.fingerprint;
     18 
     19 import android.annotation.Nullable;
     20 import android.content.Intent;
     21 import android.content.res.Resources;
     22 import android.graphics.Color;
     23 import android.os.Bundle;
     24 import android.os.UserHandle;
     25 import android.text.TextUtils;
     26 import android.view.View;
     27 import android.widget.Button;
     28 import android.widget.TextView;
     29 
     30 import com.android.settings.R;
     31 import com.android.settings.SetupWizardUtils;
     32 import com.android.settings.core.InstrumentedActivity;
     33 import com.android.settings.password.ChooseLockSettingsHelper;
     34 import com.android.setupwizardlib.GlifLayout;
     35 
     36 /**
     37  * Base activity for all fingerprint enrollment steps.
     38  */
     39 public abstract class FingerprintEnrollBase extends InstrumentedActivity
     40         implements View.OnClickListener {
     41     public static final int RESULT_FINISHED = FingerprintSettings.RESULT_FINISHED;
     42     static final int RESULT_SKIP = FingerprintSettings.RESULT_SKIP;
     43     static final int RESULT_TIMEOUT = FingerprintSettings.RESULT_TIMEOUT;
     44 
     45     protected byte[] mToken;
     46     protected int mUserId;
     47 
     48     @Override
     49     protected void onCreate(Bundle savedInstanceState) {
     50         super.onCreate(savedInstanceState);
     51         setTheme(R.style.Theme_FingerprintEnroll);
     52         mToken = getIntent().getByteArrayExtra(
     53                 ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
     54         if (savedInstanceState != null && mToken == null) {
     55             mToken = savedInstanceState.getByteArray(
     56                     ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
     57         }
     58         mUserId = getIntent().getIntExtra(Intent.EXTRA_USER_ID, UserHandle.myUserId());
     59     }
     60 
     61     @Override
     62     protected void onApplyThemeResource(Resources.Theme theme, int resid, boolean first) {
     63         resid = SetupWizardUtils.getTheme(getIntent());
     64         super.onApplyThemeResource(theme, resid, first);
     65     }
     66 
     67     @Override
     68     protected void onSaveInstanceState(Bundle outState) {
     69         super.onSaveInstanceState(outState);
     70         outState.putByteArray(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, mToken);
     71     }
     72 
     73     @Override
     74     protected void onPostCreate(@Nullable Bundle savedInstanceState) {
     75         super.onPostCreate(savedInstanceState);
     76         initViews();
     77     }
     78 
     79     protected void initViews() {
     80         getWindow().setStatusBarColor(Color.TRANSPARENT);
     81         Button nextButton = getNextButton();
     82         if (nextButton != null) {
     83             nextButton.setOnClickListener(this);
     84         }
     85     }
     86 
     87     protected GlifLayout getLayout() {
     88         return (GlifLayout) findViewById(R.id.setup_wizard_layout);
     89     }
     90 
     91     protected void setHeaderText(int resId, boolean force) {
     92         TextView layoutTitle = getLayout().getHeaderTextView();
     93         CharSequence previousTitle = layoutTitle.getText();
     94         CharSequence title = getText(resId);
     95         if (previousTitle != title || force) {
     96             if (!TextUtils.isEmpty(previousTitle)) {
     97                 layoutTitle.setAccessibilityLiveRegion(View.ACCESSIBILITY_LIVE_REGION_POLITE);
     98             }
     99             getLayout().setHeaderText(title);
    100             setTitle(title);
    101         }
    102     }
    103 
    104     protected void setHeaderText(int resId) {
    105         setHeaderText(resId, false /* force */);
    106     }
    107 
    108     protected Button getNextButton() {
    109         return (Button) findViewById(R.id.next_button);
    110     }
    111 
    112     @Override
    113     public void onClick(View v) {
    114         if (v == getNextButton()) {
    115             onNextButtonClick();
    116         }
    117     }
    118 
    119     protected void onNextButtonClick() {
    120     }
    121 
    122     protected Intent getEnrollingIntent() {
    123         Intent intent = new Intent();
    124         intent.setClassName("com.android.settings", FingerprintEnrollEnrolling.class.getName());
    125         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, mToken);
    126         if (mUserId != UserHandle.USER_NULL) {
    127             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
    128         }
    129         return intent;
    130     }
    131 }
    132