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.text.Annotation;
  28 import android.text.SpannableString;
  29 import android.text.SpannableStringBuilder;
  30 import android.text.TextPaint;
  31 import android.text.style.URLSpan;
  32 import android.util.Log;
  33 import android.view.View;
  34
  35 import com.android.internal.logging.MetricsProto.MetricsEvent;
  36 import com.android.settings.ChooseLockGeneric;
  37 import com.android.settings.ChooseLockSettingsHelper;
  38 import com.android.settings.HelpUtils;
  39 import com.android.settings.R;
  40 import com.android.setupwizardlib.SetupWizardRecyclerLayout;
  41 import com.android.setupwizardlib.items.IItem;
  42 import com.android.setupwizardlib.items.Item;
  43 import com.android.setupwizardlib.items.RecyclerItemAdapter;
  44
  45 /**
  46  * Onboarding activity for fingerprint enrollment.
  47  */
  48 public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
  49         implements RecyclerItemAdapter.OnItemSelectedListener {
  50
  51     protected static final int CHOOSE_LOCK_GENERIC_REQUEST = 1;
  52     protected static final int FINGERPRINT_FIND_SENSOR_REQUEST = 2;
  53     protected static final int LEARN_MORE_REQUEST = 3;
  54
  55     private boolean mHasPassword;
  56
  57     @Override
  58     protected void onCreate(Bundle savedInstanceState) {
  59         super.onCreate(savedInstanceState);
  60         setContentView(R.layout.fingerprint_enroll_introduction);
  61         setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
  62         final SetupWizardRecyclerLayout layout =
  63                 (SetupWizardRecyclerLayout) findViewById(R.id.setup_wizard_layout);
  64         final RecyclerItemAdapter adapter = (RecyclerItemAdapter) layout.getAdapter();
  65         adapter.setOnItemSelectedListener(this);
  66         Item item = (Item) adapter.findItemById(R.id.fingerprint_introduction_message);
  67         item.setTitle(LearnMoreSpan.linkify(
  68                 getText(R.string.security_settings_fingerprint_enroll_introduction_message),
  69                 getString(R.string.help_url_fingerprint)));
  70         // setupwizard library automatically sets the divider inset to
  71         // R.dimen.suw_items_icon_divider_inset. We adjust this back to 0 as we do not want
  72         // an inset within settings.
  73         layout.setDividerInset(0);
  74         updatePasswordQuality();
  75     }
  76
  77     private void updatePasswordQuality() {
  78         final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
  79                 .getActivePasswordQuality(mUserId);
  80         mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
  81     }
  82
  83     @Override
  84     protected void onNextButtonClick() {
  85         if (!mHasPassword) {
  86             // No fingerprints registered, launch into enrollment wizard.
  87             launchChooseLock();
  88         } else {
  89             // Lock thingy is already set up, launch directly into find sensor step from wizard.
  90             launchFindSensor(null);
  91         }
  92     }
  93
  94     private void launchChooseLock() {
  95         Intent intent = getChooseLockIntent();
  96         long challenge = getSystemService(FingerprintManager.class).preEnroll();
  97         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
  98                 DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
  99         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
 100         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
 101         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
 102         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
 103         if (mUserId != UserHandle.USER_NULL) {
 104             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 105         }
 106         startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
 107     }
 108
 109     private void launchFindSensor(byte[] token) {
 110         Intent intent = getFindSensorIntent();
 111         if (token != null) {
 112             intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
 113         }
 114         if (mUserId != UserHandle.USER_NULL) {
 115             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 116         }
 117         startActivityForResult(intent, FINGERPRINT_FIND_SENSOR_REQUEST);
 118     }
 119
 120     protected Intent getChooseLockIntent() {
 121         return new Intent(this, ChooseLockGeneric.class);
 122     }
 123
 124     protected Intent getFindSensorIntent() {
 125         Intent intent = new Intent(this, FingerprintEnrollFindSensor.class);
 126         return intent;
 127     }
 128
 129     @Override
 130     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 131         final boolean isResultFinished = resultCode == RESULT_FINISHED;
 132         if (requestCode == FINGERPRINT_FIND_SENSOR_REQUEST) {
 133             if (isResultFinished || resultCode == RESULT_SKIP) {
 134                 final int result = isResultFinished ? RESULT_OK : RESULT_SKIP;
 135                 setResult(result, data);
 136                 finish();
 137                 return;
 138             }
 139         } else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
 140             if (isResultFinished) {
 141                 updatePasswordQuality();
 142                 byte[] token = data.getByteArrayExtra(
 143                         ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
 144                 launchFindSensor(token);
 145                 return;
 146             }
 147         }
 148         super.onActivityResult(requestCode, resultCode, data);
 149     }
 150
 151     @Override
 152     public void onItemSelected(IItem item) {
 153         switch (((Item) 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 }