135 lines
4.2 KiB
Java
135 lines
4.2 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.settings.biometrics.face;
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import android.content.Context;
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import android.hardware.face.Face;
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import android.hardware.face.FaceManager;
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import android.os.UserHandle;
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import android.util.Log;
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import android.view.View;
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import android.widget.Button;
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import android.widget.Toast;
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import androidx.preference.Preference;
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import com.android.settings.R;
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import com.android.settings.core.BasePreferenceController;
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import com.android.settingslib.widget.LayoutPreference;
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import java.util.List;
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/**
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* Controller for the remove button. This assumes that there is only a single face enrolled. The UI
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* will likely change if multiple enrollments are allowed/supported.
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*/
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public class FaceSettingsRemoveButtonPreferenceController extends BasePreferenceController
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implements View.OnClickListener {
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private static final String TAG = "FaceSettings/Remove";
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private static final String KEY = "security_settings_face_delete_faces_container";
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interface Listener {
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void onRemoved();
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}
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private Button mButton;
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private List<Face> mFaces;
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private Listener mListener;
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private final Context mContext;
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private final int mUserId;
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private final FaceManager mFaceManager;
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private final FaceManager.RemovalCallback mRemovalCallback = new FaceManager.RemovalCallback() {
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@Override
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public void onRemovalError(Face face, int errMsgId, CharSequence errString) {
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Log.e(TAG, "Unable to remove face: " + face.getBiometricId()
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+ " error: " + errMsgId + " " + errString);
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Toast.makeText(mContext, errString, Toast.LENGTH_SHORT).show();
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}
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@Override
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public void onRemovalSucceeded(Face face, int remaining) {
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if (remaining == 0) {
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mFaces = mFaceManager.getEnrolledFaces(mUserId);
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if (!mFaces.isEmpty()) {
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mButton.setEnabled(true);
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} else {
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mListener.onRemoved();
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}
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} else {
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Log.v(TAG, "Remaining: " + remaining);
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}
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}
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};
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public FaceSettingsRemoveButtonPreferenceController(Context context, String preferenceKey) {
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super(context, preferenceKey);
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mContext = context;
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mFaceManager = context.getSystemService(FaceManager.class);
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// TODO: Use the profile-specific userId instead
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mUserId = UserHandle.myUserId();
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if (mFaceManager != null) {
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mFaces = mFaceManager.getEnrolledFaces(mUserId);
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}
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}
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public FaceSettingsRemoveButtonPreferenceController(Context context) {
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this(context, KEY);
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}
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@Override
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public void updateState(Preference preference) {
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super.updateState(preference);
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mButton = ((LayoutPreference) preference)
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.findViewById(R.id.security_settings_face_settings_remove_button);
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mButton.setOnClickListener(this);
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}
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@Override
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public int getAvailabilityStatus() {
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return AVAILABLE;
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}
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@Override
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public String getPreferenceKey() {
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return KEY;
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}
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@Override
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public void onClick(View v) {
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if (v == mButton) {
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mButton.setEnabled(false);
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if (mFaces.isEmpty()) {
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Log.e(TAG, "No faces");
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return;
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}
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if (mFaces.size() > 1) {
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Log.e(TAG, "Multiple enrollments: " + mFaces.size());
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}
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// Remove the first/only face
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mFaceManager.remove(mFaces.get(0), mUserId, mRemovalCallback);
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}
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}
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public void setListener(Listener listener) {
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mListener = listener;
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}
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}
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