src/com/android/settings/fingerprint/FingerprintEnrollIntroduction.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2015 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License
  */

 package com.android.settings.fingerprint;

 import android.app.admin.DevicePolicyManager;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Typeface;
 import android.hardware.fingerprint.FingerprintManager;
 import android.os.Bundle;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.text.Annotation;
 import android.text.SpannableString;
 import android.text.SpannableStringBuilder;
 import android.text.TextPaint;
 import android.text.TextUtils;
 import android.text.style.URLSpan;
 import android.util.Log;
 import android.view.View;

 import com.android.internal.logging.MetricsProto.MetricsEvent;
 import com.android.internal.util.CharSequences;
 import com.android.settings.ChooseLockGeneric;
 import com.android.settings.ChooseLockSettingsHelper;
 import com.android.settingslib.HelpUtils;
 import com.android.settings.R;
 import com.android.setupwizardlib.SetupWizardRecyclerLayout;
 import com.android.setupwizardlib.items.IItem;
 import com.android.setupwizardlib.items.Item;
 import com.android.setupwizardlib.items.RecyclerItemAdapter;

 /**
  * Onboarding activity for fingerprint enrollment.
  */
 public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
         implements RecyclerItemAdapter.OnItemSelectedListener {

     protected static final int CHOOSE_LOCK_GENERIC_REQUEST = 1;
     protected static final int FINGERPRINT_FIND_SENSOR_REQUEST = 2;
     protected static final int LEARN_MORE_REQUEST = 3;

     private UserManager mUserManager;
     private boolean mHasPassword;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.fingerprint_enroll_introduction);
         setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
         final SetupWizardRecyclerLayout layout =
                 (SetupWizardRecyclerLayout) findViewById(R.id.setup_wizard_layout);
         mUserManager = UserManager.get(this);
         final RecyclerItemAdapter adapter = (RecyclerItemAdapter) layout.getAdapter();
         adapter.setOnItemSelectedListener(this);
         Item item = (Item) adapter.findItemById(R.id.fingerprint_introduction_message);
         item.setTitle(LearnMoreSpan.linkify(
                 getText(R.string.security_settings_fingerprint_enroll_introduction_message),
                 getString(R.string.help_url_fingerprint)));
         // setupwizard library automatically sets the divider inset to
         // R.dimen.suw_items_icon_divider_inset. We adjust this back to 0 as we do not want
         // an inset within settings.
         layout.setDividerInset(0);
         updatePasswordQuality();
     }

     private void updatePasswordQuality() {
         final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
                 .getActivePasswordQuality(mUserManager.getCredentialOwnerProfile(mUserId));
         mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
     }

     @Override
     protected void onNextButtonClick() {
         if (!mHasPassword) {
             // No fingerprints registered, launch into enrollment wizard.
             launchChooseLock();
         } else {
             // Lock thingy is already set up, launch directly into find sensor step from wizard.
             launchFindSensor(null);
         }
     }

     private void launchChooseLock() {
         Intent intent = getChooseLockIntent();
         long challenge = getSystemService(FingerprintManager.class).preEnroll();
         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
                 DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
         if (mUserId != UserHandle.USER_NULL) {
             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
         }
         startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
     }

     private void launchFindSensor(byte[] token) {
         Intent intent = getFindSensorIntent();
         if (token != null) {
             intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
         }
         if (mUserId != UserHandle.USER_NULL) {
             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
         }
         startActivityForResult(intent, FINGERPRINT_FIND_SENSOR_REQUEST);
     }

     protected Intent getChooseLockIntent() {
         return new Intent(this, ChooseLockGeneric.class);
     }

     protected Intent getFindSensorIntent() {
         Intent intent = new Intent(this, FingerprintEnrollFindSensor.class);
         return intent;
     }

     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         final boolean isResultFinished = resultCode == RESULT_FINISHED;
         if (requestCode == FINGERPRINT_FIND_SENSOR_REQUEST) {
             if (isResultFinished || resultCode == RESULT_SKIP) {
                 final int result = isResultFinished ? RESULT_OK : RESULT_SKIP;
                 setResult(result, data);
                 finish();
                 return;
             }
         } else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
             if (isResultFinished) {
                 updatePasswordQuality();
                 byte[] token = data.getByteArrayExtra(
                         ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
                 launchFindSensor(token);
                 return;
             }
         }
         super.onActivityResult(requestCode, resultCode, data);
     }

     @Override
     public void onItemSelected(IItem item) {
         switch (((Item) item).getId()) {
             case R.id.next_button:
                 onNextButtonClick();
                 break;
             case R.id.cancel_button:
                 onCancelButtonClick();
                 break;
         }
     }

     @Override
     protected int getMetricsCategory() {
         return MetricsEvent.FINGERPRINT_ENROLL_INTRO;
     }

     protected void onCancelButtonClick() {
         finish();
     }

     private static class LearnMoreSpan extends URLSpan {
         private static final String TAG = "LearnMoreSpan";
         private static final Typeface TYPEFACE_MEDIUM =
                 Typeface.create("sans-serif-medium", Typeface.NORMAL);

         private LearnMoreSpan(String url) {
             super(url);
         }

         @Override
         public void onClick(View widget) {
             Context ctx = widget.getContext();
             Intent intent = HelpUtils.getHelpIntent(ctx, getURL(), ctx.getClass().getName());
             if (intent == null) {
                 Log.w(LearnMoreSpan.TAG, "Null help intent.");
                 return;
             }
             try {
                 // This needs to be startActivityForResult even though we do not care about the
                 // actual result because the help app needs to know about who invoked it.
                 widget.startActivityForResult(intent, LEARN_MORE_REQUEST);
             } catch (ActivityNotFoundException e) {
                 Log.w(LearnMoreSpan.TAG,
                         "Actvity was not found for intent, " + intent.toString());
             }
         }

         @Override
         public void updateDrawState(TextPaint ds) {
             super.updateDrawState(ds);
             ds.setUnderlineText(false);
             ds.setTypeface(TYPEFACE_MEDIUM);
         }

         public static CharSequence linkify(CharSequence rawText, String uri) {
             SpannableString msg = new SpannableString(rawText);
             Annotation[] spans = msg.getSpans(0, msg.length(), Annotation.class);
             if (TextUtils.isEmpty(uri)) {
                 CharSequence ret = rawText;
                 for (Annotation annotation : spans) {
                     int start = msg.getSpanStart(annotation);
                     int end = msg.getSpanEnd(annotation);
                     ret = TextUtils.concat(ret.subSequence(0, start),
                             msg.subSequence(end, msg.length()));
                 }
                 return ret;
             } else {
                 SpannableStringBuilder builder = new SpannableStringBuilder(msg);
                 for (Annotation annotation : spans) {
                     int start = msg.getSpanStart(annotation);
                     int end = msg.getSpanEnd(annotation);
                     LearnMoreSpan link = new LearnMoreSpan(uri);
                     builder.setSpan(link, start, end, msg.getSpanFlags(link));
                 }
                 return builder;
             }
         }
     }
 }
	/*
	* Copyright (C) 2015 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License
	*/

	package com.android.settings.fingerprint;

	import android.app.admin.DevicePolicyManager;
	import android.content.ActivityNotFoundException;
	import android.content.Context;
	import android.content.Intent;
	import android.graphics.Typeface;
	import android.hardware.fingerprint.FingerprintManager;
	import android.os.Bundle;
	import android.os.UserHandle;
	import android.os.UserManager;
	import android.text.Annotation;
	import android.text.SpannableString;
	import android.text.SpannableStringBuilder;
	import android.text.TextPaint;
	import android.text.TextUtils;
	import android.text.style.URLSpan;
	import android.util.Log;
	import android.view.View;

	import com.android.internal.logging.MetricsProto.MetricsEvent;
	import com.android.internal.util.CharSequences;
	import com.android.settings.ChooseLockGeneric;
	import com.android.settings.ChooseLockSettingsHelper;
	import com.android.settingslib.HelpUtils;
	import com.android.settings.R;
	import com.android.setupwizardlib.SetupWizardRecyclerLayout;
	import com.android.setupwizardlib.items.IItem;
	import com.android.setupwizardlib.items.Item;
	import com.android.setupwizardlib.items.RecyclerItemAdapter;

	/**
	* Onboarding activity for fingerprint enrollment.
	*/
	public class FingerprintEnrollIntroduction extends FingerprintEnrollBase
	implements RecyclerItemAdapter.OnItemSelectedListener {

	protected static final int CHOOSE_LOCK_GENERIC_REQUEST = 1;
	protected static final int FINGERPRINT_FIND_SENSOR_REQUEST = 2;
	protected static final int LEARN_MORE_REQUEST = 3;

	private UserManager mUserManager;
	private boolean mHasPassword;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.fingerprint_enroll_introduction);
	setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
	final SetupWizardRecyclerLayout layout =
	(SetupWizardRecyclerLayout) findViewById(R.id.setup_wizard_layout);
	mUserManager = UserManager.get(this);
	final RecyclerItemAdapter adapter = (RecyclerItemAdapter) layout.getAdapter();
	adapter.setOnItemSelectedListener(this);
	Item item = (Item) adapter.findItemById(R.id.fingerprint_introduction_message);
	item.setTitle(LearnMoreSpan.linkify(
	getText(R.string.security_settings_fingerprint_enroll_introduction_message),
	getString(R.string.help_url_fingerprint)));
	// setupwizard library automatically sets the divider inset to
	// R.dimen.suw_items_icon_divider_inset. We adjust this back to 0 as we do not want
	// an inset within settings.
	layout.setDividerInset(0);
	updatePasswordQuality();
	}

	private void updatePasswordQuality() {
	final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
	.getActivePasswordQuality(mUserManager.getCredentialOwnerProfile(mUserId));
	mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
	}

	@Override
	protected void onNextButtonClick() {
	if (!mHasPassword) {
	// No fingerprints registered, launch into enrollment wizard.
	launchChooseLock();
	} else {
	// Lock thingy is already set up, launch directly into find sensor step from wizard.
	launchFindSensor(null);
	}
	}

	private void launchChooseLock() {
	Intent intent = getChooseLockIntent();
	long challenge = getSystemService(FingerprintManager.class).preEnroll();
	intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
	DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
	intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
	intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
	intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
	intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
	if (mUserId != UserHandle.USER_NULL) {
	intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
	}
	startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
	}

	private void launchFindSensor(byte[] token) {
	Intent intent = getFindSensorIntent();
	if (token != null) {
	intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
	}
	if (mUserId != UserHandle.USER_NULL) {
	intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
	}
	startActivityForResult(intent, FINGERPRINT_FIND_SENSOR_REQUEST);
	}

	protected Intent getChooseLockIntent() {
	return new Intent(this, ChooseLockGeneric.class);
	}

	protected Intent getFindSensorIntent() {
	Intent intent = new Intent(this, FingerprintEnrollFindSensor.class);
	return intent;
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
	final boolean isResultFinished = resultCode == RESULT_FINISHED;
	if (requestCode == FINGERPRINT_FIND_SENSOR_REQUEST) {
	if (isResultFinished \|\| resultCode == RESULT_SKIP) {
	final int result = isResultFinished ? RESULT_OK : RESULT_SKIP;
	setResult(result, data);
	finish();
	return;
	}
	} else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
	if (isResultFinished) {
	updatePasswordQuality();
	byte[] token = data.getByteArrayExtra(
	ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
	launchFindSensor(token);
	return;
	}
	}
	super.onActivityResult(requestCode, resultCode, data);
	}

	@Override
	public void onItemSelected(IItem item) {
	switch (((Item) item).getId()) {
	case R.id.next_button:
	onNextButtonClick();
	break;
	case R.id.cancel_button:
	onCancelButtonClick();
	break;
	}
	}

	@Override
	protected int getMetricsCategory() {
	return MetricsEvent.FINGERPRINT_ENROLL_INTRO;
	}

	protected void onCancelButtonClick() {
	finish();
	}

	private static class LearnMoreSpan extends URLSpan {
	private static final String TAG = "LearnMoreSpan";
	private static final Typeface TYPEFACE_MEDIUM =
	Typeface.create("sans-serif-medium", Typeface.NORMAL);

	private LearnMoreSpan(String url) {
	super(url);
	}

	@Override
	public void onClick(View widget) {
	Context ctx = widget.getContext();
	Intent intent = HelpUtils.getHelpIntent(ctx, getURL(), ctx.getClass().getName());
	if (intent == null) {
	Log.w(LearnMoreSpan.TAG, "Null help intent.");
	return;
	}
	try {
	// This needs to be startActivityForResult even though we do not care about the
	// actual result because the help app needs to know about who invoked it.
	widget.startActivityForResult(intent, LEARN_MORE_REQUEST);
	} catch (ActivityNotFoundException e) {
	Log.w(LearnMoreSpan.TAG,
	"Actvity was not found for intent, " + intent.toString());
	}
	}

	@Override
	public void updateDrawState(TextPaint ds) {
	super.updateDrawState(ds);
	ds.setUnderlineText(false);
	ds.setTypeface(TYPEFACE_MEDIUM);
	}

	public static CharSequence linkify(CharSequence rawText, String uri) {
	SpannableString msg = new SpannableString(rawText);
	Annotation[] spans = msg.getSpans(0, msg.length(), Annotation.class);
	if (TextUtils.isEmpty(uri)) {
	CharSequence ret = rawText;
	for (Annotation annotation : spans) {
	int start = msg.getSpanStart(annotation);
	int end = msg.getSpanEnd(annotation);
	ret = TextUtils.concat(ret.subSequence(0, start),
	msg.subSequence(end, msg.length()));
	}
	return ret;
	} else {
	SpannableStringBuilder builder = new SpannableStringBuilder(msg);
	for (Annotation annotation : spans) {
	int start = msg.getSpanStart(annotation);
	int end = msg.getSpanEnd(annotation);
	LearnMoreSpan link = new LearnMoreSpan(uri);
	builder.setSpan(link, start, end, msg.getSpanFlags(link));
	}
	return builder;
	}
	}
	}
	}