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.SetupWizardRecyclerLayout;
  45 import com.android.setupwizardlib.items.IItem;
  46 import com.android.setupwizardlib.items.Item;
  47 import com.android.setupwizardlib.items.RecyclerItemAdapter;
  48
  49 /**
  50  * Onboarding activity for fingerprint enrollment.
  51  */
  52 public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
  53         implements RecyclerItemAdapter.OnItemSelectedListener {
  54
  55     protected static final int CHOOSE_LOCK_GENERIC_REQUEST = 1;
  56     protected static final int FINGERPRINT_FIND_SENSOR_REQUEST = 2;
  57     protected static final int LEARN_MORE_REQUEST = 3;
  58
  59     private boolean mHasPassword;
  60
  61     @Override
  62     protected void onCreate(Bundle savedInstanceState) {
  63         super.onCreate(savedInstanceState);
  64         setContentView(R.layout.fingerprint_enroll_introduction);
  65         setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
  66         final SetupWizardRecyclerLayout layout =
  67                 (SetupWizardRecyclerLayout) findViewById(R.id.setup_wizard_layout);
  68         final RecyclerItemAdapter adapter = (RecyclerItemAdapter) layout.getAdapter();
  69         adapter.setOnItemSelectedListener(this);
  70         Item item = (Item) adapter.findItemById(R.id.fingerprint_introduction_message);
  71         item.setTitle(LearnMoreSpan.linkify(
  72                 getText(R.string.security_settings_fingerprint_enroll_introduction_message),
  73                 getString(R.string.help_url_fingerprint)));
  74         // setupwizard library automatically sets the divider inset to
  75         // R.dimen.suw_items_icon_divider_inset. We adjust this back to 0 as we do not want
  76         // an inset within settings.
  77         layout.setDividerInset(0);
  78         updatePasswordQuality();
  79     }
  80
  81     private void updatePasswordQuality() {
  82         final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
  83                 .getActivePasswordQuality(mUserId);
  84         mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
  85     }
  86
  87     @Override
  88     protected void onNextButtonClick() {
  89         if (!mHasPassword) {
  90             // No fingerprints registered, launch into enrollment wizard.
  91             launchChooseLock();
  92         } else {
  93             // Lock thingy is already set up, launch directly into find sensor step from wizard.
  94             launchFindSensor(null);
  95         }
  96     }
  97
  98     private void launchChooseLock() {
  99         Intent intent = getChooseLockIntent();
 100         long challenge = getSystemService(FingerprintManager.class).preEnroll();
 101         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
 102                 DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
 103         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
 104         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
 105         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
 106         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
 107         if (mUserId != UserHandle.USER_NULL) {
 108             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 109         }
 110         startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
 111     }
 112
 113     private void launchFindSensor(byte[] token) {
 114         Intent intent = getFindSensorIntent();
 115         if (token != null) {
 116             intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
 117         }
 118         if (mUserId != UserHandle.USER_NULL) {
 119             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
 120         }
 121         startActivityForResult(intent, FINGERPRINT_FIND_SENSOR_REQUEST);
 122     }
 123
 124     protected Intent getChooseLockIntent() {
 125         return new Intent(this, ChooseLockGeneric.class);
 126     }
 127
 128     protected Intent getFindSensorIntent() {
 129         Intent intent = new Intent(this, FingerprintEnrollFindSensor.class);
 130         return intent;
 131     }
 132
 133     @Override
 134     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 135         final boolean isResultFinished = resultCode == RESULT_FINISHED;
 136         if (requestCode == FINGERPRINT_FIND_SENSOR_REQUEST) {
 137             if (isResultFinished || resultCode == RESULT_SKIP) {
 138                 final int result = isResultFinished ? RESULT_OK : RESULT_SKIP;
 139                 setResult(result, data);
 140                 finish();
 141                 return;
 142             }
 143         } else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
 144             if (isResultFinished) {
 145                 updatePasswordQuality();
 146                 byte[] token = data.getByteArrayExtra(
 147                         ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
 148                 launchFindSensor(token);
 149                 return;
 150             }
 151         }
 152         super.onActivityResult(requestCode, resultCode, data);
 153     }
 154
 155     @Override
 156     public void onItemSelected(IItem item) {
 157         switch (((Item) item).getId()) {
 158             case R.id.next_button:
 159                 onNextButtonClick();
 160                 break;
 161             case R.id.cancel_button:
 162                 onCancelButtonClick();
 163                 break;
 164         }
 165     }
 166
 167     @Override
 168     protected int getMetricsCategory() {
 169         return MetricsEvent.FINGERPRINT_ENROLL_INTRO;
 170     }
 171
 172     protected void onCancelButtonClick() {
 173         finish();
 174     }
 175
 176     private static class LearnMoreSpan extends URLSpan {
 177         private static final String TAG = "LearnMoreSpan";
 178         private static final Typeface TYPEFACE_MEDIUM =
 179                 Typeface.create("sans-serif-medium", Typeface.NORMAL);
 180
 181         private LearnMoreSpan(String url) {
 182             super(url);
 183         }
 184
 185         @Override
 186         public void onClick(View widget) {
 187             Context ctx = widget.getContext();
 188             Intent intent = HelpUtils.getHelpIntent(ctx, getURL(), ctx.getClass().getName());
 189             try {
 190                 // This needs to be startActivityForResult even though we do not care about the
 191                 // actual result because the help app needs to know about who invoked it.
 192                 widget.startActivityForResult(intent, LEARN_MORE_REQUEST);
 193             } catch (ActivityNotFoundException e) {
 194                 Log.w(LearnMoreSpan.TAG,
 195                         "Actvity was not found for intent, " + intent.toString());
 196             }
 197         }
 198
 199         @Override
 200         public void updateDrawState(TextPaint ds) {
 201             super.updateDrawState(ds);
 202             ds.setUnderlineText(false);
 203             ds.setTypeface(TYPEFACE_MEDIUM);
 204         }
 205
 206         public static CharSequence linkify(CharSequence rawText, String uri) {
 207             SpannableString msg = new SpannableString(rawText);
 208             Annotation[] spans = msg.getSpans(0, msg.length(), Annotation.class);
 209             SpannableStringBuilder builder = new SpannableStringBuilder(msg);
 210             for (Annotation annotation : spans) {
 211                 int start = msg.getSpanStart(annotation);
 212                 int end = msg.getSpanEnd(annotation);
 213                 LearnMoreSpan link = new LearnMoreSpan(uri);
 214                 builder.setSpan(link, start, end, msg.getSpanFlags(link));
 215             }
 216             return builder;
 217         }
 218     }
 219 }