src/com/android/settings/fingerprint/FingerprintEnrollIntroduction.java

   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.app.Activity;
  20 import android.app.admin.DevicePolicyManager;
  21 import android.content.ActivityNotFoundException;
  22 import android.content.Context;
  23 import android.content.Intent;
  24 import android.hardware.fingerprint.FingerprintManager;
  25 import android.graphics.Typeface;
  26 import android.graphics.drawable.Drawable;
  27 import android.os.Bundle;
  28 import android.os.UserHandle;
  29 import android.text.Annotation;
  30 import android.text.SpannableString;
  31 import android.text.SpannableStringBuilder;
  32 import android.text.TextPaint;
  33 import android.text.method.LinkMovementMethod;
  34 import android.text.style.URLSpan;
  35 import android.util.Log;
  36 import android.view.View;
  37 import android.widget.AdapterView;
  38
  39 import com.android.internal.logging.MetricsProto.MetricsEvent;
  40 import com.android.settings.ChooseLockGeneric;
  41 import com.android.settings.ChooseLockSettingsHelper;
  42 import com.android.settings.HelpUtils;
  43 import com.android.settings.R;
  44 import com.android.setupwizardlib.SetupWizardItemsLayout;
  45 import com.android.setupwizardlib.items.Item;
  46 import com.android.setupwizardlib.items.ItemAdapter;
  47
  48 /**
  49  * Onboarding activity for fingerprint enrollment.
  50  */
  51 public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
  52         implements AdapterView.OnItemClickListener {
  53
  54     protected static final int CHOOSE_LOCK_GENERIC_REQUEST = 1;
  55     protected static final int FINGERPRINT_FIND_SENSOR_REQUEST = 2;
  56
  57     private boolean mHasPassword;
  58
  59     @Override
  60     protected void onCreate(Bundle savedInstanceState) {
  61         super.onCreate(savedInstanceState);
  62         setContentView(R.layout.fingerprint_enroll_introduction);
  63         setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
  64         final SetupWizardItemsLayout layout =
  65                 (SetupWizardItemsLayout) findViewById(R.id.setup_wizard_layout);
  66         layout.getListView().setOnItemClickListener(this);
  67         final ItemAdapter adapter = (ItemAdapter) layout.getAdapter();
  68         Item item = (Item) adapter.findItemById(R.id.fingerprint_introduction_message_warning);
  69         item.setTitle(LearnMoreSpan.linkify(
  70                 getText(R.string.security_settings_fingerprint_enroll_introduction_message_warning),
  71                 getString(R.string.help_url_fingerprint)));
  72         updatePasswordQuality();
  73     }
  74
  75     private void updatePasswordQuality() {
  76         final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
  77                 .getActivePasswordQuality(mUserId);
  78         mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
  79     }
  80
  81     @Override
  82     protected void onNextButtonClick() {
  83         if (!mHasPassword) {
  84             // No fingerprints registered, launch into enrollment wizard.
  85             launchChooseLock();
  86         } else {
  87             // Lock thingy is already set up, launch directly into find sensor step from wizard.
  88             launchFindSensor(null);
  89         }
  90     }
  91
  92     private void launchChooseLock() {
  93         Intent intent = getChooseLockIntent();
  94         long challenge = getSystemService(FingerprintManager.class).preEnroll();
  95         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
  96                 DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
  97         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
  98         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
  99         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
 100         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
 101         if (mUserId != UserHandle.USER_NULL) {
 102             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 103         }
 104         startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
 105     }
 106
 107     private void launchFindSensor(byte[] token) {
 108         Intent intent = getFindSensorIntent();
 109         if (token != null) {
 110             intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
 111         }
 112         if (mUserId != UserHandle.USER_NULL) {
 113             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 114         }
 115         startActivityForResult(intent, FINGERPRINT_FIND_SENSOR_REQUEST);
 116     }
 117
 118     protected Intent getChooseLockIntent() {
 119         return new Intent(this, ChooseLockGeneric.class);
 120     }
 121
 122     protected Intent getFindSensorIntent() {
 123         Intent intent = new Intent(this, FingerprintEnrollFindSensor.class);
 124         return intent;
 125     }
 126
 127     @Override
 128     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 129         final boolean isResultFinished = resultCode == RESULT_FINISHED;
 130         if (requestCode == FINGERPRINT_FIND_SENSOR_REQUEST) {
 131             if (isResultFinished || resultCode == RESULT_SKIP) {
 132                 final int result = isResultFinished ? RESULT_OK : RESULT_SKIP;
 133                 setResult(result, data);
 134                 finish();
 135                 return;
 136             }
 137         } else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
 138             if (isResultFinished) {
 139                 updatePasswordQuality();
 140                 byte[] token = data.getByteArrayExtra(
 141                         ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
 142                 launchFindSensor(token);
 143                 return;
 144             }
 145         }
 146         super.onActivityResult(requestCode, resultCode, data);
 147     }
 148
 149     @Override
 150     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 151         final Item item = (Item) parent.getItemAtPosition(position);
 152         switch (item.getId()) {
 153             case R.id.next_button:
 154                 onNextButtonClick();
 155                 break;
 156             case R.id.cancel_button:
 157                 onCancelButtonClick();
 158                 break;
 159         }
 160     }
 161
 162     @Override
 163     protected int getMetricsCategory() {
 164         return MetricsEvent.FINGERPRINT_ENROLL_INTRO;
 165     }
 166
 167     protected void onCancelButtonClick() {
 168         finish();
 169     }
 170
 171     private static class LearnMoreSpan extends URLSpan {
 172         private static final String TAG = "LearnMoreSpan";
 173         private static final Typeface TYPEFACE_MEDIUM =
 174                 Typeface.create("sans-serif-medium", Typeface.NORMAL);
 175
 176         private LearnMoreSpan(String url) {
 177             super(url);
 178         }
 179
 180         @Override
 181         public void onClick(View widget) {
 182             Context ctx = widget.getContext();
 183             Intent intent = HelpUtils.getHelpIntent(ctx, getURL(), ctx.getClass().getName());
 184             try {
 185                 ((Activity) ctx).startActivity(intent);
 186             } catch (ActivityNotFoundException e) {
 187                 Log.w(LearnMoreSpan.TAG,
 188                         "Actvity was not found for intent, " + intent.toString());
 189             }
 190         }
 191
 192         @Override
 193         public void updateDrawState(TextPaint ds) {
 194             super.updateDrawState(ds);
 195             ds.setUnderlineText(false);
 196             ds.setTypeface(TYPEFACE_MEDIUM);
 197         }
 198
 199         public static CharSequence linkify(CharSequence rawText, String uri) {
 200             SpannableString msg = new SpannableString(rawText);
 201             Annotation[] spans = msg.getSpans(0, msg.length(), Annotation.class);
 202             SpannableStringBuilder builder = new SpannableStringBuilder(msg);
 203             for (Annotation annotation : spans) {
 204                 int start = msg.getSpanStart(annotation);
 205                 int end = msg.getSpanEnd(annotation);
 206                 LearnMoreSpan link = new LearnMoreSpan(uri);
 207                 builder.setSpan(link, start, end, msg.getSpanFlags(link));
 208             }
 209             return builder;
 210         }
 211     }
 212 }