src/com/android/settings/accessibility/AccessibilityButtonFooterPreferenceController.java

/*
 * Copyright (C) 2021 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.accessibility;

import android.content.Context;
import android.icu.text.MessageFormat;
import android.text.Html;

import androidx.preference.PreferenceScreen;

import com.android.settings.R;

/**
 * Preference controller for accessibility button footer.
 */
public class AccessibilityButtonFooterPreferenceController extends
        AccessibilityFooterPreferenceController {

    public AccessibilityButtonFooterPreferenceController(Context context, String key) {
        super(context, key);
    }

    @Override
    protected String getLearnMoreText() {
        return mContext.getString(
            R.string.accessibility_button_gesture_footer_learn_more_content_description);
    }

    @Override
    protected String getIntroductionTitle() {
        return mContext.getString(R.string.accessibility_button_about_title);
    }

    @Override
    public void displayPreference(PreferenceScreen screen) {
        // Need to update footerPreference's data before super.displayPreference(), then it will use
        // data to update related property of footerPreference.
        final int titleResource;
        if (android.provider.Flags.a11yStandaloneGestureEnabled()) {
            titleResource = R.string.accessibility_button_description;
        } else {
            titleResource = AccessibilityUtil.isGestureNavigateEnabled(mContext)
                    ? R.string.accessibility_button_gesture_description
                    : R.string.accessibility_button_description;
        }
        final CharSequence footerText = Html.fromHtml(
                MessageFormat.format(mContext.getString(titleResource), 1, 2, 3),
                Html.FROM_HTML_MODE_COMPACT);
        final AccessibilityFooterPreference footerPreference =
                screen.findPreference(getPreferenceKey());
        footerPreference.setTitle(footerText);
        super.displayPreference(screen);
    }
}