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.admin.DevicePolicyManager;
  20 import android.content.ActivityNotFoundException;
  21 import android.content.Context;
  22 import android.content.Intent;
  23 import android.graphics.Typeface;
  24 import android.hardware.fingerprint.FingerprintManager;
  25 import android.os.Bundle;
  26 import android.os.UserHandle;
  27 import android.os.UserManager;
  28 import android.text.Annotation;
  29 import android.text.SpannableString;
  30 import android.text.SpannableStringBuilder;
  31 import android.text.TextPaint;
  32 import android.text.style.URLSpan;
  33 import android.util.Log;
  34 import android.view.View;
  35
  36 import com.android.internal.logging.MetricsProto.MetricsEvent;
  37 import com.android.settings.ChooseLockGeneric;
  38 import com.android.settings.ChooseLockSettingsHelper;
  39 import com.android.settingslib.HelpUtils;
  40 import com.android.settings.R;
  41 import com.android.setupwizardlib.SetupWizardRecyclerLayout;
  42 import com.android.setupwizardlib.items.IItem;
  43 import com.android.setupwizardlib.items.Item;
  44 import com.android.setupwizardlib.items.RecyclerItemAdapter;
  45
  46 /**
  47  * Onboarding activity for fingerprint enrollment.
  48  */
  49 public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
  50         implements RecyclerItemAdapter.OnItemSelectedListener {
  51
  52     protected static final int CHOOSE_LOCK_GENERIC_REQUEST = 1;
  53     protected static final int FINGERPRINT_FIND_SENSOR_REQUEST = 2;
  54     protected static final int LEARN_MORE_REQUEST = 3;
  55
  56     private UserManager mUserManager;
  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 SetupWizardRecyclerLayout layout =
  65                 (SetupWizardRecyclerLayout) findViewById(R.id.setup_wizard_layout);
  66         mUserManager = UserManager.get(this);
  67         final RecyclerItemAdapter adapter = (RecyclerItemAdapter) layout.getAdapter();
  68         adapter.setOnItemSelectedListener(this);
  69         Item item = (Item) adapter.findItemById(R.id.fingerprint_introduction_message);
  70         item.setTitle(LearnMoreSpan.linkify(
  71                 getText(R.string.security_settings_fingerprint_enroll_introduction_message),
  72                 getString(R.string.help_url_fingerprint)));
  73         // setupwizard library automatically sets the divider inset to
  74         // R.dimen.suw_items_icon_divider_inset. We adjust this back to 0 as we do not want
  75         // an inset within settings.
  76         layout.setDividerInset(0);
  77         updatePasswordQuality();
  78     }
  79
  80     private void updatePasswordQuality() {
  81         final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
  82                 .getActivePasswordQuality(mUserManager.getCredentialOwnerProfile(mUserId));
  83         mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
  84     }
  85
  86     @Override
  87     protected void onNextButtonClick() {
  88         if (!mHasPassword) {
  89             // No fingerprints registered, launch into enrollment wizard.
  90             launchChooseLock();
  91         } else {
  92             // Lock thingy is already set up, launch directly into find sensor step from wizard.
  93             launchFindSensor(null);
  94         }
  95     }
  96
  97     private void launchChooseLock() {
  98         Intent intent = getChooseLockIntent();
  99         long challenge = getSystemService(FingerprintManager.class).preEnroll();
 100         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
 101                 DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
 102         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
 103         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
 104         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
 105         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
 106         if (mUserId != UserHandle.USER_NULL) {
 107             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 108         }
 109         startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
 110     }
 111
 112     private void launchFindSensor(byte[] token) {
 113         Intent intent = getFindSensorIntent();
 114         if (token != null) {
 115             intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
 116         }
 117         if (mUserId != UserHandle.USER_NULL) {
 118             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 119         }
 120         startActivityForResult(intent, FINGERPRINT_FIND_SENSOR_REQUEST);
 121     }
 122
 123     protected Intent getChooseLockIntent() {
 124         return new Intent(this, ChooseLockGeneric.class);
 125     }
 126
 127     protected Intent getFindSensorIntent() {
 128         Intent intent = new Intent(this, FingerprintEnrollFindSensor.class);
 129         return intent;
 130     }
 131
 132     @Override
 133     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 134         final boolean isResultFinished = resultCode == RESULT_FINISHED;
 135         if (requestCode == FINGERPRINT_FIND_SENSOR_REQUEST) {
 136             if (isResultFinished || resultCode == RESULT_SKIP) {
 137                 final int result = isResultFinished ? RESULT_OK : RESULT_SKIP;
 138                 setResult(result, data);
 139                 finish();
 140                 return;
 141             }
 142         } else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
 143             if (isResultFinished) {
 144                 updatePasswordQuality();
 145                 byte[] token = data.getByteArrayExtra(
 146                         ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
 147                 launchFindSensor(token);
 148                 return;
 149             }
 150         }
 151         super.onActivityResult(requestCode, resultCode, data);
 152     }
 153
 154     @Override
 155     public void onItemSelected(IItem item) {
 156         switch (((Item) item).getId()) {
 157             case R.id.next_button:
 158                 onNextButtonClick();
 159                 break;
 160             case R.id.cancel_button:
 161                 onCancelButtonClick();
 162                 break;
 163         }
 164     }
 165
 166     @Override
 167     protected int getMetricsCategory() {
 168         return MetricsEvent.FINGERPRINT_ENROLL_INTRO;
 169     }
 170
 171     protected void onCancelButtonClick() {
 172         finish();
 173     }
 174
 175     private static class LearnMoreSpan extends URLSpan {
 176         private static final String TAG = "LearnMoreSpan";
 177         private static final Typeface TYPEFACE_MEDIUM =
 178                 Typeface.create("sans-serif-medium", Typeface.NORMAL);
 179
 180         private LearnMoreSpan(String url) {
 181             super(url);
 182         }
 183
 184         @Override
 185         public void onClick(View widget) {
 186             Context ctx = widget.getContext();
 187             Intent intent = HelpUtils.getHelpIntent(ctx, getURL(), ctx.getClass().getName());
 188             try {
 189                 // This needs to be startActivityForResult even though we do not care about the
 190                 // actual result because the help app needs to know about who invoked it.
 191                 widget.startActivityForResult(intent, LEARN_MORE_REQUEST);
 192             } catch (ActivityNotFoundException e) {
 193                 Log.w(LearnMoreSpan.TAG,
 194                         "Actvity was not found for intent, " + intent.toString());
 195             }
 196         }
 197
 198         @Override
 199         public void updateDrawState(TextPaint ds) {
 200             super.updateDrawState(ds);
 201             ds.setUnderlineText(false);
 202             ds.setTypeface(TYPEFACE_MEDIUM);
 203         }
 204
 205         public static CharSequence linkify(CharSequence rawText, String uri) {
 206             SpannableString msg = new SpannableString(rawText);
 207             Annotation[] spans = msg.getSpans(0, msg.length(), Annotation.class);
 208             SpannableStringBuilder builder = new SpannableStringBuilder(msg);
 209             for (Annotation annotation : spans) {
 210                 int start = msg.getSpanStart(annotation);
 211                 int end = msg.getSpanEnd(annotation);
 212                 LearnMoreSpan link = new LearnMoreSpan(uri);
 213                 builder.setSpan(link, start, end, msg.getSpanFlags(link));
 214             }
 215             return builder;
 216         }
 217     }
 218 }