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Adding search for dynamic accessibility settings.

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The language and input settings are highly dynamic and this change adds search
support for that. This category depends on installed IMEs, input devices, user
dictionary configuration, etc. We not only compute the right preferences to be
indexed but also track related system state in the settings app to rebuild the
index if needed.

bug:14066763

Change-Id: Ia89d9e35bd79abf8d74614691aedf4ca9b11b6f2
This commit is contained in:
Svetoslav
2014-04-14 17:14:59 -07:00
parent 853e47181d
commit 990159abaa
4 changed files with 373 additions and 50 deletions
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97
src/com/android/settings/SettingsActivity.java
View File

@@ -40,6 +40,9 @@ import android.content.pm.ResolveInfo;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.database.ContentObserver;
import android.hardware.input.InputManager;
import android.net.Uri;
import android.nfc.NfcAdapter;
import android.os.Bundle;
import android.os.Handler;
@@ -57,7 +60,7 @@ import android.preference.PreferenceScreen;
import android.print.PrintManager;
import android.printservice.PrintService;
import android.printservice.PrintServiceInfo;
import android.provider.SearchIndexableData;
import android.provider.UserDictionary;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.Log;
@@ -69,6 +72,8 @@ import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.accessibility.AccessibilityManager;
import android.view.inputmethod.InputMethodInfo;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.ListView;
@@ -119,7 +124,6 @@ import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import static com.android.settings.dashboard.Header.HEADER_ID_UNDEFINED;
@@ -315,8 +319,8 @@ public class SettingsActivity extends Activity
}
};
private final DynamicIndexablePackageMonitor mDynamicIndexablePackageMonitor =
new DynamicIndexablePackageMonitor();
private final DynamicIndexableContentMonitor mDynamicIndexableContentMonitor =
new DynamicIndexableContentMonitor();
private Button mNextButton;
private ActionBar mActionBar;
@@ -625,7 +629,7 @@ public class SettingsActivity extends Activity
registerReceiver(mBatteryInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
mDynamicIndexablePackageMonitor.register(this);
mDynamicIndexableContentMonitor.register(this);
}
@Override
@@ -641,7 +645,7 @@ public class SettingsActivity extends Activity
mDevelopmentPreferencesListener = null;
mDynamicIndexablePackageMonitor.unregister();
mDynamicIndexableContentMonitor.unregister();
}
@Override
@@ -1290,13 +1294,18 @@ public class SettingsActivity extends Activity
mSearchMenuItem.collapseActionView();
}
private static final class DynamicIndexablePackageMonitor extends PackageMonitor {
private static final class DynamicIndexableContentMonitor extends PackageMonitor implements
InputManager.InputDeviceListener {
private static final Intent ACCESSIBILITY_SERVICE_INTENT =
new Intent(AccessibilityService.SERVICE_INTERFACE);
private static final Intent PRINT_SERVICE_INTENT =
new Intent(PrintService.SERVICE_INTERFACE);
private static final Intent IME_SERVICE_INTENT =
new Intent("android.view.InputMethod");
private static final long DELAY_PROCESS_PACKAGE_CHANGE = 2000;
private static final int MSG_PACKAGE_AVAILABLE = 1;
@@ -1304,6 +1313,7 @@ public class SettingsActivity extends Activity
private final List<String> mAccessibilityServices = new ArrayList<String>();
private final List<String> mPrintServices = new ArrayList<String>();
private final List<String> mImeServices = new ArrayList<String>();
private final Handler mHandler = new Handler() {
@Override
@@ -1322,6 +1332,8 @@ public class SettingsActivity extends Activity
}
};
private final ContentObserver mContentObserver = new MyContentObserver(mHandler);
private Context mContext;
public void register(Context context) {
@@ -1350,13 +1362,41 @@ public class SettingsActivity extends Activity
.serviceInfo.packageName);
}
// Cache IME service packages to know when they go away.
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);
mImeServices.add(inputMethod.getServiceInfo().packageName);
}
// Watch for related content URIs.
mContext.getContentResolver().registerContentObserver(
UserDictionary.Words.CONTENT_URI, true, mContentObserver);
// Watch for input device changes.
InputManager inputManager = (InputManager) context.getSystemService(
Context.INPUT_SERVICE);
inputManager.registerInputDeviceListener(this, mHandler);
// Start tracking packages.
register(context, Looper.getMainLooper(), UserHandle.CURRENT, false);
}
public void unregister() {
super.unregister();
InputManager inputManager = (InputManager) mContext.getSystemService(
Context.INPUT_SERVICE);
inputManager.unregisterInputDeviceListener(this);
mContext.getContentResolver().unregisterContentObserver(mContentObserver);
mAccessibilityServices.clear();
mPrintServices.clear();
mImeServices.clear();
}
// Covers installed, appeared external storage with the package, upgraded.
@@ -1385,6 +1425,23 @@ public class SettingsActivity extends Activity
}
}
@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);
@@ -1412,6 +1469,17 @@ public class SettingsActivity extends Activity
}
intent.setPackage(null);
}
if (!mImeServices.contains(packageName)) {
Intent intent = IME_SERVICE_INTENT;
intent.setPackage(packageName);
if (!mContext.getPackageManager().queryIntentServices(intent, 0).isEmpty()) {
mImeServices.add(packageName);
Index.getInstance(mContext).updateFromClassNameResource(
InputMethodAndLanguageSettings.class.getName(), false, true);
}
intent.setPackage(null);
}
}
private void handlePackageUnavailable(String packageName) {
@@ -1429,5 +1497,20 @@ public class SettingsActivity extends Activity
PrintSettingsFragment.class.getName(), true, true);
}
}
private final class MyContentObserver extends ContentObserver {
public MyContentObserver(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);
}
};
}
}
}