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/*
* Copyright (C) 2015 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 static com.android.settings.accessibility.AccessibilityUtil.AccessibilityServiceFragmentType.VOLUME_SHORTCUT_TOGGLE;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.app.settings.SettingsEnums;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.ServiceInfo;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityManager;
import androidx.preference.Preference;
import androidx.recyclerview.widget.RecyclerView;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.google.android.setupdesign.GlifPreferenceLayout;
import java.util.List;
/**
* Activity with the accessibility settings specific to Setup Wizard.
*/
public class AccessibilitySettingsForSetupWizard extends SettingsPreferenceFragment
implements Preference.OnPreferenceChangeListener {
// Preferences.
private static final String DISPLAY_MAGNIFICATION_PREFERENCE =
"screen_magnification_preference";
private static final String SCREEN_READER_PREFERENCE = "screen_reader_preference";
private static final String SELECT_TO_SPEAK_PREFERENCE = "select_to_speak_preference";
// Package names and service names used to identify screen reader and SelectToSpeak services.
private static final String SCREEN_READER_PACKAGE_NAME = "com.google.android.marvin.talkback";
private static final String SCREEN_READER_SERVICE_NAME =
"com.google.android.marvin.talkback.TalkBackService";
private static final String SELECT_TO_SPEAK_PACKAGE_NAME = "com.google.android.marvin.talkback";
private static final String SELECT_TO_SPEAK_SERVICE_NAME =
"com.google.android.accessibility.selecttospeak.SelectToSpeakService";
// Preference controls.
private Preference mDisplayMagnificationPreference;
private Preference mScreenReaderPreference;
private Preference mSelectToSpeakPreference;
@Override
public int getMetricsCategory() {
return SettingsEnums.SUW_ACCESSIBILITY;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
GlifPreferenceLayout layout = (GlifPreferenceLayout) view;
layout.setDividerInsets(Integer.MAX_VALUE, 0);
layout.setHeaderText(R.string.vision_settings_title);
}
@Override
public RecyclerView onCreateRecyclerView(LayoutInflater inflater, ViewGroup parent,
Bundle savedInstanceState) {
GlifPreferenceLayout layout = (GlifPreferenceLayout) parent;
return layout.onCreateRecyclerView(inflater, parent, savedInstanceState);
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.accessibility_settings_for_setup_wizard);
mDisplayMagnificationPreference = findPreference(DISPLAY_MAGNIFICATION_PREFERENCE);
mScreenReaderPreference = findPreference(SCREEN_READER_PREFERENCE);
mSelectToSpeakPreference = findPreference(SELECT_TO_SPEAK_PREFERENCE);
}
@Override
public void onResume() {
super.onResume();
updateAccessibilityServicePreference(mScreenReaderPreference,
SCREEN_READER_PACKAGE_NAME, SCREEN_READER_SERVICE_NAME,
VolumeShortcutToggleScreenReaderPreferenceFragmentForSetupWizard.class.getName());
updateAccessibilityServicePreference(mSelectToSpeakPreference,
SELECT_TO_SPEAK_PACKAGE_NAME, SELECT_TO_SPEAK_SERVICE_NAME,
VolumeShortcutToggleSelectToSpeakPreferenceFragmentForSetupWizard.class.getName());
configureMagnificationPreferenceIfNeeded(mDisplayMagnificationPreference);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setHasOptionsMenu(false);
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
return false;
}
@Override
public boolean onPreferenceTreeClick(Preference preference) {
if (mDisplayMagnificationPreference == preference) {
Bundle extras = mDisplayMagnificationPreference.getExtras();
extras.putBoolean(AccessibilitySettings.EXTRA_LAUNCHED_FROM_SUW, true);
}
return super.onPreferenceTreeClick(preference);
}
private AccessibilityServiceInfo findService(String packageName, String serviceName) {
final AccessibilityManager manager =
getActivity().getSystemService(AccessibilityManager.class);
final List<AccessibilityServiceInfo> accessibilityServices =
manager.getInstalledAccessibilityServiceList();
for (AccessibilityServiceInfo info : accessibilityServices) {
ServiceInfo serviceInfo = info.getResolveInfo().serviceInfo;
if (packageName.equals(serviceInfo.packageName)
&& serviceName.equals(serviceInfo.name)) {
return info;
}
}
return null;
}
private void updateAccessibilityServicePreference(Preference preference,
String packageName, String serviceName, String targetFragment) {
final AccessibilityServiceInfo info = findService(packageName, serviceName);
if (info == null) {
getPreferenceScreen().removePreference(preference);
return;
}
ServiceInfo serviceInfo = info.getResolveInfo().serviceInfo;
String title = info.getResolveInfo().loadLabel(getPackageManager()).toString();
preference.setTitle(title);
ComponentName componentName = new ComponentName(serviceInfo.packageName, serviceInfo.name);
preference.setKey(componentName.flattenToString());
if (AccessibilityUtil.getAccessibilityServiceFragmentType(info) == VOLUME_SHORTCUT_TOGGLE) {
preference.setFragment(targetFragment);
}
// Update the extras.
Bundle extras = preference.getExtras();
extras.putParcelable(AccessibilitySettings.EXTRA_COMPONENT_NAME, componentName);
extras.putString(AccessibilitySettings.EXTRA_PREFERENCE_KEY,
preference.getKey());
extras.putString(AccessibilitySettings.EXTRA_TITLE, title);
String description = info.loadDescription(getPackageManager());
extras.putString(AccessibilitySettings.EXTRA_SUMMARY, description);
extras.putInt(AccessibilitySettings.EXTRA_ANIMATED_IMAGE_RES, info.getAnimatedImageRes());
final String htmlDescription = info.loadHtmlDescription(getPackageManager());
extras.putString(AccessibilitySettings.EXTRA_HTML_DESCRIPTION, htmlDescription);
}
private static void configureMagnificationPreferenceIfNeeded(Preference preference) {
final Context context = preference.getContext();
preference.setFragment(
ToggleScreenMagnificationPreferenceFragmentForSetupWizard.class.getName());
final Bundle extras = preference.getExtras();
MagnificationGesturesPreferenceController
.populateMagnificationGesturesPreferenceExtras(extras, context);
}
}
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