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     protected static final int LEARN_MORE_REQUEST = 3;
  57
  58     private boolean mHasPassword;
  59
  60     @Override
  61     protected void onCreate(Bundle savedInstanceState) {
  62         super.onCreate(savedInstanceState);
  63         setContentView(R.layout.fingerprint_enroll_introduction);
  64         setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
  65         final SetupWizardItemsLayout layout =
  66                 (SetupWizardItemsLayout) findViewById(R.id.setup_wizard_layout);
  67         layout.getListView().setOnItemClickListener(this);
  68         final ItemAdapter adapter = (ItemAdapter) layout.getAdapter();
  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         updatePasswordQuality();
  74     }
  75
  76     private void updatePasswordQuality() {
  77         final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
  78                 .getActivePasswordQuality(mUserId);
  79         mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
  80     }
  81
  82     @Override
  83     protected void onNextButtonClick() {
  84         if (!mHasPassword) {
  85             // No fingerprints registered, launch into enrollment wizard.
  86             launchChooseLock();
  87         } else {
  88             // Lock thingy is already set up, launch directly into find sensor step from wizard.
  89             launchFindSensor(null);
  90         }
  91     }
  92
  93     private void launchChooseLock() {
  94         Intent intent = getChooseLockIntent();
  95         long challenge = getSystemService(FingerprintManager.class).preEnroll();
  96         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
  97                 DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
  98         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
  99         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
 100         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
 101         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
 102         if (mUserId != UserHandle.USER_NULL) {
 103             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 104         }
 105         startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
 106     }
 107
 108     private void launchFindSensor(byte[] token) {
 109         Intent intent = getFindSensorIntent();
 110         if (token != null) {
 111             intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
 112         }
 113         if (mUserId != UserHandle.USER_NULL) {
 114             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 115         }
 116         startActivityForResult(intent, FINGERPRINT_FIND_SENSOR_REQUEST);
 117     }
 118
 119     protected Intent getChooseLockIntent() {
 120         return new Intent(this, ChooseLockGeneric.class);
 121     }
 122
 123     protected Intent getFindSensorIntent() {
 124         Intent intent = new Intent(this, FingerprintEnrollFindSensor.class);
 125         return intent;
 126     }
 127
 128     @Override
 129     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 130         final boolean isResultFinished = resultCode == RESULT_FINISHED;
 131         if (requestCode == FINGERPRINT_FIND_SENSOR_REQUEST) {
 132             if (isResultFinished || resultCode == RESULT_SKIP) {
 133                 final int result = isResultFinished ? RESULT_OK : RESULT_SKIP;
 134                 setResult(result, data);
 135                 finish();
 136                 return;
 137             }
 138         } else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
 139             if (isResultFinished) {
 140                 updatePasswordQuality();
 141                 byte[] token = data.getByteArrayExtra(
 142                         ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
 143                 launchFindSensor(token);
 144                 return;
 145             }
 146         }
 147         super.onActivityResult(requestCode, resultCode, data);
 148     }
 149
 150     @Override
 151     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 152         final Item item = (Item) parent.getItemAtPosition(position);
 153         switch (item.getId()) {
 154             case R.id.next_button:
 155                 onNextButtonClick();
 156                 break;
 157             case R.id.cancel_button:
 158                 onCancelButtonClick();
 159                 break;
 160         }
 161     }
 162
 163     @Override
 164     protected int getMetricsCategory() {
 165         return MetricsEvent.FINGERPRINT_ENROLL_INTRO;
 166     }
 167
 168     protected void onCancelButtonClick() {
 169         finish();
 170     }
 171
 172     private static class LearnMoreSpan extends URLSpan {
 173         private static final String TAG = "LearnMoreSpan";
 174         private static final Typeface TYPEFACE_MEDIUM =
 175                 Typeface.create("sans-serif-medium", Typeface.NORMAL);
 176
 177         private LearnMoreSpan(String url) {
 178             super(url);
 179         }
 180
 181         @Override
 182         public void onClick(View widget) {
 183             Context ctx = widget.getContext();
 184             Intent intent = HelpUtils.getHelpIntent(ctx, getURL(), ctx.getClass().getName());
 185             try {
 186                 // This needs to be startActivityForResult even though we do not care about the
 187                 // actual result because the help app needs to know about who invoked it.
 188                 widget.startActivityForResult(intent, LEARN_MORE_REQUEST);
 189             } catch (ActivityNotFoundException e) {
 190                 Log.w(LearnMoreSpan.TAG,
 191                         "Actvity was not found for intent, " + intent.toString());
 192             }
 193         }
 194
 195         @Override
 196         public void updateDrawState(TextPaint ds) {
 197             super.updateDrawState(ds);
 198             ds.setUnderlineText(false);
 199             ds.setTypeface(TYPEFACE_MEDIUM);
 200         }
 201
 202         public static CharSequence linkify(CharSequence rawText, String uri) {
 203             SpannableString msg = new SpannableString(rawText);
 204             Annotation[] spans = msg.getSpans(0, msg.length(), Annotation.class);
 205             SpannableStringBuilder builder = new SpannableStringBuilder(msg);
 206             for (Annotation annotation : spans) {
 207                 int start = msg.getSpanStart(annotation);
 208                 int end = msg.getSpanEnd(annotation);
 209                 LearnMoreSpan link = new LearnMoreSpan(uri);
 210                 builder.setSpan(link, start, end, msg.getSpanFlags(link));
 211             }
 212             return builder;
 213         }
 214     }
 215 }