src/com/android/settings/inputmethod/ModifierKeysResetDialogFragment.java

/*
 * Copyright (C) 2022 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.inputmethod;

import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.hardware.input.InputManager;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.widget.Button;

import androidx.fragment.app.DialogFragment;

import com.android.settings.R;

public class ModifierKeysResetDialogFragment extends DialogFragment {
    private static final String MODIFIER_KEYS_CAPS_LOCK = "modifier_keys_caps_lock";
    private static final String MODIFIER_KEYS_CTRL = "modifier_keys_ctrl";
    private static final String MODIFIER_KEYS_META = "modifier_keys_meta";
    private static final String MODIFIER_KEYS_ALT = "modifier_keys_alt";

    private String[] mKeys = {
            MODIFIER_KEYS_CAPS_LOCK,
            MODIFIER_KEYS_CTRL,
            MODIFIER_KEYS_META,
            MODIFIER_KEYS_ALT};

    public ModifierKeysResetDialogFragment() {}

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        super.onCreateDialog(savedInstanceState);

        Activity activity = getActivity();
        InputManager inputManager = activity.getSystemService(InputManager.class);
        View dialoglayout =
                LayoutInflater.from(activity).inflate(R.layout.modifier_key_reset_dialog, null);
        AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(activity);
        dialogBuilder.setView(dialoglayout);
        AlertDialog modifierKeyResetDialog = dialogBuilder.create();

        Button restoreButton = dialoglayout.findViewById(R.id.modifier_key_reset_restore_button);
        restoreButton.setOnClickListener(v -> {
            inputManager.clearAllModifierKeyRemappings();
            dismiss();
            activity.recreate();
        });

        Button cancelButton = dialoglayout.findViewById(R.id.modifier_key_reset_cancel_button);
        cancelButton.setOnClickListener(v -> {
            dismiss();
        });

        final Window window = modifierKeyResetDialog.getWindow();
        window.setType(TYPE_SYSTEM_DIALOG);

        return modifierKeyResetDialog;
    }
}