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/*
* 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.tv.settings.device.displaysound;
import static com.android.tv.settings.util.InstrumentationUtils.logEntrySelected;
import android.app.tvsettings.TvSettingsEnums;
import android.content.ContentResolver;
import android.content.Context;
import android.os.Bundle;
import android.provider.Settings;
import androidx.annotation.Keep;
import androidx.preference.Preference;
import androidx.preference.PreferenceGroup;
import com.android.tv.settings.R;
import com.android.tv.settings.RadioPreference;
import com.android.tv.settings.SettingsPreferenceFragment;
import com.android.tv.settings.overlay.FlavorUtils;
/**
* The "Text scaling" screen in TV Settings.
*/
@Keep
public class FontScalePreferenceFragment extends SettingsPreferenceFragment implements
Preference.OnPreferenceChangeListener {
private static final String FONT_SCALE_RADIO_GROUP = "font_scale_radio_group";
private static final String FONT_SCALE_GROUP = "font_scale_group";
/** Value of FONT_SCALE. */
private float mCurrentFontScaleValue;
@Override
public void onCreatePreferences(Bundle bundle, String s) {
setPreferencesFromResource(R.xml.font_scale, null);
PreferenceGroup fontScaleGroup = (PreferenceGroup) findPreference(FONT_SCALE_GROUP);
final Context themedContext = getPreferenceManager().getContext();
final String[] entryValues = getContext().getResources()
.getStringArray(R.array.font_scale_entry_values);
final String[] entries = getContext().getResources()
.getStringArray(R.array.font_scale_entries);
initFontScaleValue(getContext());
for (int i = 0; i < entryValues.length; i++) {
final RadioPreference preference = new RadioPreference(themedContext);
preference.setOnPreferenceChangeListener(this);
preference.setPersistent(false);
preference.setRadioGroup(FONT_SCALE_RADIO_GROUP);
preference.setKey(entryValues[i]);
int scaleValue = (int) (Float.valueOf(entryValues[i]) * 100);
String summary = getContext().getResources()
.getString(R.string.font_scale_item_detail, scaleValue);
preference.setSummaryOff(summary);
preference.setSummaryOn(summary);
preference.setTitle(entries[i]);
if (Float.compare(mCurrentFontScaleValue, Float.parseFloat(entryValues[i])) == 0) {
preference.setChecked(true);
}
initPreview(preference, Float.parseFloat(entryValues[i]));
fontScaleGroup.addPreference(preference);
}
}
private void initPreview(RadioPreference preference, float previewFontScaleValue) {
if (FlavorUtils.isTwoPanel(getContext())) {
preference.setFragment(FontScalePreviewFragment.class.getName());
}
Bundle extras = preference.getExtras();
extras.putString(FontScalePreviewFragment.PREVIEW_FONT_SCALE_VALUE,
String.valueOf(previewFontScaleValue));
extras.putFloat(
FontScalePreviewFragment.CURRENT_FONT_SCALE_VALUE, mCurrentFontScaleValue);
}
private void initFontScaleValue(Context context) {
final ContentResolver resolver = getContext().getContentResolver();
mCurrentFontScaleValue =
Settings.System.getFloat(resolver, Settings.System.FONT_SCALE, 1.0f);
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
RadioPreference radioPreference = (RadioPreference) preference;
if (radioPreference.isChecked()) {
return false;
}
PreferenceGroup fontScaleGroup = (PreferenceGroup) findPreference(FONT_SCALE_GROUP);
radioPreference.clearOtherRadioPreferences(fontScaleGroup);
mCurrentFontScaleValue = Float.parseFloat(preference.getKey());
commit();
initPreview(radioPreference, mCurrentFontScaleValue);
radioPreference.setChecked(true);
logNewFontScaleSelection(preference.getKey());
return true;
}
protected void commit() {
if (getContext() == null) return;
final ContentResolver resolver = getContext().getContentResolver();
Settings.System.putFloat(resolver, Settings.System.FONT_SCALE, mCurrentFontScaleValue);
}
private void logNewFontScaleSelection(String fontScale) {
final int[] textScalingOptions = {
TvSettingsEnums.DISPLAY_SOUND_TEXT_SCALING_SMALL,
TvSettingsEnums.DISPLAY_SOUND_TEXT_SCALING_DEFAULT,
TvSettingsEnums.DISPLAY_SOUND_TEXT_SCALING_LARGE,
TvSettingsEnums.DISPLAY_SOUND_TEXT_SCALING_LARGEST,
};
final String[] entryValues = getContext().getResources()
.getStringArray(R.array.font_scale_entry_values);
for (int i = 0; i < entryValues.length; i++) {
if (fontScale.equals(entryValues[i])) {
logEntrySelected(textScalingOptions[i]);
break;
}
}
}
@Override
protected int getPageId() {
return TvSettingsEnums.DISPLAY_SOUND_TEXT_SCALING;
}
}
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