300 lines
12 KiB
Java
300 lines
12 KiB
Java
/*
|
|
* Copyright (C) 2014 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.search;
|
|
|
|
import android.accessibilityservice.AccessibilityService;
|
|
import android.accessibilityservice.AccessibilityServiceInfo;
|
|
import android.app.Activity;
|
|
import android.app.LoaderManager;
|
|
import android.content.Context;
|
|
import android.content.Intent;
|
|
import android.content.Loader;
|
|
import android.content.pm.PackageManager;
|
|
import android.content.pm.ResolveInfo;
|
|
import android.content.pm.ServiceInfo;
|
|
import android.database.ContentObserver;
|
|
import android.hardware.input.InputManager;
|
|
import android.net.Uri;
|
|
import android.os.Bundle;
|
|
import android.os.Handler;
|
|
import android.os.Looper;
|
|
import android.os.Message;
|
|
import android.os.UserHandle;
|
|
import android.print.PrintManager;
|
|
import android.print.PrintServicesLoader;
|
|
import android.printservice.PrintServiceInfo;
|
|
import android.provider.UserDictionary;
|
|
import android.util.Log;
|
|
import android.view.accessibility.AccessibilityManager;
|
|
import android.view.inputmethod.InputMethodInfo;
|
|
import android.view.inputmethod.InputMethodManager;
|
|
|
|
import com.android.internal.content.PackageMonitor;
|
|
import com.android.settings.accessibility.AccessibilitySettings;
|
|
import com.android.settings.inputmethod.InputMethodAndLanguageSettings;
|
|
import com.android.settings.print.PrintSettingsFragment;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.List;
|
|
|
|
public final class DynamicIndexableContentMonitor extends PackageMonitor implements
|
|
InputManager.InputDeviceListener,
|
|
LoaderManager.LoaderCallbacks<List<PrintServiceInfo>> {
|
|
private static final String TAG = "DynamicIndexableContentMonitor";
|
|
|
|
private static final long DELAY_PROCESS_PACKAGE_CHANGE = 2000;
|
|
|
|
private static final int MSG_PACKAGE_AVAILABLE = 1;
|
|
private static final int MSG_PACKAGE_UNAVAILABLE = 2;
|
|
|
|
private final List<String> mAccessibilityServices = new ArrayList<String>();
|
|
private final List<String> mImeServices = new ArrayList<String>();
|
|
|
|
private final Handler mHandler = new Handler() {
|
|
@Override
|
|
public void handleMessage(Message msg) {
|
|
switch (msg.what) {
|
|
case MSG_PACKAGE_AVAILABLE: {
|
|
String packageName = (String) msg.obj;
|
|
handlePackageAvailable(packageName);
|
|
} break;
|
|
|
|
case MSG_PACKAGE_UNAVAILABLE: {
|
|
String packageName = (String) msg.obj;
|
|
handlePackageUnavailable(packageName);
|
|
} break;
|
|
}
|
|
}
|
|
};
|
|
|
|
private final ContentObserver mUserDictionaryContentObserver =
|
|
new UserDictionaryContentObserver(mHandler);
|
|
|
|
private Context mContext;
|
|
private boolean mHasFeatureIme;
|
|
|
|
private static Intent getAccessibilityServiceIntent(String packageName) {
|
|
final Intent intent = new Intent(AccessibilityService.SERVICE_INTERFACE);
|
|
intent.setPackage(packageName);
|
|
return intent;
|
|
}
|
|
|
|
private static Intent getIMEServiceIntent(String packageName) {
|
|
final Intent intent = new Intent("android.view.InputMethod");
|
|
intent.setPackage(packageName);
|
|
return intent;
|
|
}
|
|
|
|
public void register(Activity activity, int loaderId) {
|
|
mContext = activity;
|
|
|
|
boolean hasFeaturePrinting = mContext.getPackageManager().hasSystemFeature(
|
|
PackageManager.FEATURE_PRINTING);
|
|
mHasFeatureIme = mContext.getPackageManager().hasSystemFeature(
|
|
PackageManager.FEATURE_INPUT_METHODS);
|
|
|
|
// Cache accessibility service packages to know when they go away.
|
|
AccessibilityManager accessibilityManager = (AccessibilityManager)
|
|
mContext.getSystemService(Context.ACCESSIBILITY_SERVICE);
|
|
List<AccessibilityServiceInfo> accessibilityServices = accessibilityManager
|
|
.getInstalledAccessibilityServiceList();
|
|
final int accessibilityServiceCount = accessibilityServices.size();
|
|
for (int i = 0; i < accessibilityServiceCount; i++) {
|
|
AccessibilityServiceInfo accessibilityService = accessibilityServices.get(i);
|
|
ResolveInfo resolveInfo = accessibilityService.getResolveInfo();
|
|
if (resolveInfo == null || resolveInfo.serviceInfo == null) {
|
|
continue;
|
|
}
|
|
mAccessibilityServices.add(resolveInfo.serviceInfo.packageName);
|
|
}
|
|
|
|
if (hasFeaturePrinting) {
|
|
activity.getLoaderManager().initLoader(loaderId, null, this);
|
|
}
|
|
|
|
// Cache IME service packages to know when they go away.
|
|
if (mHasFeatureIme) {
|
|
InputMethodManager imeManager = (InputMethodManager)
|
|
mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
|
|
List<InputMethodInfo> inputMethods = imeManager.getInputMethodList();
|
|
final int inputMethodCount = inputMethods.size();
|
|
for (int i = 0; i < inputMethodCount; i++) {
|
|
InputMethodInfo inputMethod = inputMethods.get(i);
|
|
ServiceInfo serviceInfo = inputMethod.getServiceInfo();
|
|
if (serviceInfo == null) continue;
|
|
mImeServices.add(serviceInfo.packageName);
|
|
}
|
|
|
|
// Watch for related content URIs.
|
|
mContext.getContentResolver().registerContentObserver(
|
|
UserDictionary.Words.CONTENT_URI, true, mUserDictionaryContentObserver);
|
|
}
|
|
|
|
// Watch for input device changes.
|
|
InputManager inputManager = (InputManager) activity.getSystemService(
|
|
Context.INPUT_SERVICE);
|
|
inputManager.registerInputDeviceListener(this, mHandler);
|
|
|
|
// Start tracking packages.
|
|
register(activity, Looper.getMainLooper(), UserHandle.CURRENT, false);
|
|
}
|
|
|
|
public void unregister() {
|
|
super.unregister();
|
|
|
|
InputManager inputManager = (InputManager) mContext.getSystemService(
|
|
Context.INPUT_SERVICE);
|
|
inputManager.unregisterInputDeviceListener(this);
|
|
|
|
if (mHasFeatureIme) {
|
|
mContext.getContentResolver().unregisterContentObserver(
|
|
mUserDictionaryContentObserver);
|
|
}
|
|
|
|
mAccessibilityServices.clear();
|
|
mImeServices.clear();
|
|
}
|
|
|
|
// Covers installed, appeared external storage with the package, upgraded.
|
|
@Override
|
|
public void onPackageAppeared(String packageName, int uid) {
|
|
postMessage(MSG_PACKAGE_AVAILABLE, packageName);
|
|
}
|
|
|
|
// Covers uninstalled, removed external storage with the package.
|
|
@Override
|
|
public void onPackageDisappeared(String packageName, int uid) {
|
|
postMessage(MSG_PACKAGE_UNAVAILABLE, packageName);
|
|
}
|
|
|
|
// Covers enabled, disabled.
|
|
@Override
|
|
public void onPackageModified(String packageName) {
|
|
super.onPackageModified(packageName);
|
|
try {
|
|
final int state = mContext.getPackageManager().getApplicationEnabledSetting(
|
|
packageName);
|
|
if (state == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
|
|
|| state == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
|
|
postMessage(MSG_PACKAGE_AVAILABLE, packageName);
|
|
} else {
|
|
postMessage(MSG_PACKAGE_UNAVAILABLE, packageName);
|
|
}
|
|
} catch (IllegalArgumentException e) {
|
|
Log.e(TAG, "Package does not exist: " + packageName, e);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void onInputDeviceAdded(int deviceId) {
|
|
Index.getInstance(mContext).updateFromClassNameResource(
|
|
InputMethodAndLanguageSettings.class.getName(), false, true);
|
|
}
|
|
|
|
@Override
|
|
public void onInputDeviceRemoved(int deviceId) {
|
|
onInputDeviceChanged(deviceId);
|
|
}
|
|
|
|
@Override
|
|
public void onInputDeviceChanged(int deviceId) {
|
|
Index.getInstance(mContext).updateFromClassNameResource(
|
|
InputMethodAndLanguageSettings.class.getName(), true, true);
|
|
}
|
|
|
|
private void postMessage(int what, String packageName) {
|
|
Message message = mHandler.obtainMessage(what, packageName);
|
|
mHandler.sendMessageDelayed(message, DELAY_PROCESS_PACKAGE_CHANGE);
|
|
}
|
|
|
|
private void handlePackageAvailable(String packageName) {
|
|
if (!mAccessibilityServices.contains(packageName)) {
|
|
final Intent intent = getAccessibilityServiceIntent(packageName);
|
|
List<?> services = mContext.getPackageManager().queryIntentServices(intent, 0);
|
|
if (services != null && !services.isEmpty()) {
|
|
mAccessibilityServices.add(packageName);
|
|
Index.getInstance(mContext).updateFromClassNameResource(
|
|
AccessibilitySettings.class.getName(), false, true);
|
|
}
|
|
}
|
|
|
|
if (mHasFeatureIme) {
|
|
if (!mImeServices.contains(packageName)) {
|
|
Intent intent = getIMEServiceIntent(packageName);
|
|
List<?> services = mContext.getPackageManager().queryIntentServices(intent, 0);
|
|
if (services != null && !services.isEmpty()) {
|
|
mImeServices.add(packageName);
|
|
Index.getInstance(mContext).updateFromClassNameResource(
|
|
InputMethodAndLanguageSettings.class.getName(), false, true);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private void handlePackageUnavailable(String packageName) {
|
|
final int accessibilityIndex = mAccessibilityServices.indexOf(packageName);
|
|
if (accessibilityIndex >= 0) {
|
|
mAccessibilityServices.remove(accessibilityIndex);
|
|
Index.getInstance(mContext).updateFromClassNameResource(
|
|
AccessibilitySettings.class.getName(), true, true);
|
|
}
|
|
|
|
if (mHasFeatureIme) {
|
|
final int imeIndex = mImeServices.indexOf(packageName);
|
|
if (imeIndex >= 0) {
|
|
mImeServices.remove(imeIndex);
|
|
Index.getInstance(mContext).updateFromClassNameResource(
|
|
InputMethodAndLanguageSettings.class.getName(), true, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public Loader<List<PrintServiceInfo>> onCreateLoader(int id, Bundle args) {
|
|
return new PrintServicesLoader(
|
|
(PrintManager) mContext.getSystemService(Context.PRINT_SERVICE), mContext,
|
|
PrintManager.ALL_SERVICES);
|
|
}
|
|
|
|
@Override
|
|
public void onLoadFinished(Loader<List<PrintServiceInfo>> loader,
|
|
List<PrintServiceInfo> services) {
|
|
Index.getInstance(mContext).updateFromClassNameResource(
|
|
PrintSettingsFragment.class.getName(), false, true);
|
|
}
|
|
|
|
@Override
|
|
public void onLoaderReset(Loader<List<PrintServiceInfo>> loader) {
|
|
// nothing to do
|
|
}
|
|
|
|
private final class UserDictionaryContentObserver extends ContentObserver {
|
|
|
|
public UserDictionaryContentObserver(Handler handler) {
|
|
super(handler);
|
|
}
|
|
|
|
@Override
|
|
public void onChange(boolean selfChange, Uri uri) {
|
|
if (UserDictionary.Words.CONTENT_URI.equals(uri)) {
|
|
Index.getInstance(mContext).updateFromClassNameResource(
|
|
InputMethodAndLanguageSettings.class.getName(), true, true);
|
|
}
|
|
};
|
|
}
|
|
}
|