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path: root/packages/SystemUI/src/com/android/keyguard/KeyguardPinBasedInputViewController.java
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/*
 * Copyright (C) 2020 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.keyguard;

import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnKeyListener;
import android.view.View.OnTouchListener;

import com.android.internal.util.LatencyTracker;
import com.android.internal.widget.LockPatternUtils;
import com.android.keyguard.KeyguardSecurityModel.SecurityMode;
import com.android.systemui.R;

public abstract class KeyguardPinBasedInputViewController<T extends KeyguardPinBasedInputView>
        extends KeyguardAbsKeyInputViewController<T> {

    private final LiftToActivateListener mLiftToActivateListener;
    protected PasswordTextView mPasswordEntry;

    private final OnKeyListener mOnKeyListener = (v, keyCode, event) -> {
        if (event.getAction() == KeyEvent.ACTION_DOWN) {
            return mView.onKeyDown(keyCode, event);
        }
        return false;
    };

    private final OnTouchListener mOnTouchListener = (v, event) -> {
        if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
            mView.doHapticKeyClick();
        }
        return false;
    };

    protected KeyguardPinBasedInputViewController(T view,
            KeyguardUpdateMonitor keyguardUpdateMonitor,
            SecurityMode securityMode,
            LockPatternUtils lockPatternUtils,
            KeyguardSecurityCallback keyguardSecurityCallback,
            KeyguardMessageAreaController.Factory messageAreaControllerFactory,
            LatencyTracker latencyTracker,
            LiftToActivateListener liftToActivateListener) {
        super(view, keyguardUpdateMonitor, securityMode, lockPatternUtils, keyguardSecurityCallback,
                messageAreaControllerFactory, latencyTracker);
        mLiftToActivateListener = liftToActivateListener;
        mPasswordEntry = mView.findViewById(mView.getPasswordTextViewId());
    }

    @Override
    protected void onViewAttached() {
        super.onViewAttached();

        mPasswordEntry.setOnKeyListener(mOnKeyListener);
        mPasswordEntry.setUserActivityListener(this::onUserInput);

        View deleteButton = mView.findViewById(R.id.delete_button);
        deleteButton.setOnTouchListener(mOnTouchListener);
        deleteButton.setOnClickListener(v -> {
            // check for time-based lockouts
            if (mPasswordEntry.isEnabled()) {
                mPasswordEntry.deleteLastChar();
            }
        });
        deleteButton.setOnLongClickListener(v -> {
            // check for time-based lockouts
            if (mPasswordEntry.isEnabled()) {
                mView.resetPasswordText(true /* animate */, true /* announce */);
            }
            mView.doHapticKeyClick();
            return true;
        });

        View okButton = mView.findViewById(R.id.key_enter);
        if (okButton != null) {
            okButton.setOnTouchListener(mOnTouchListener);
            okButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (mPasswordEntry.isEnabled()) {
                        verifyPasswordAndUnlock();
                    }
                }
            });
            okButton.setOnHoverListener(mLiftToActivateListener);
        }
    }

    @Override
    public void onResume(int reason) {
        super.onResume(reason);
        mPasswordEntry.requestFocus();
    }

    @Override
    void resetState() {
        mView.setPasswordEntryEnabled(true);
    }
}