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/*
* Copyright (C) 2011 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.inputmethod.compat;
import android.content.Intent;
import android.text.TextUtils;
import android.util.Log;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
public class CompatUtils {
private static final String TAG = CompatUtils.class.getSimpleName();
private static final String EXTRA_INPUT_METHOD_ID = "input_method_id";
// TODO: Can these be constants instead of literal String constants?
private static final String INPUT_METHOD_SUBTYPE_SETTINGS =
"android.settings.INPUT_METHOD_SUBTYPE_SETTINGS";
private static final String INPUT_LANGUAGE_SELECTION =
"com.android.inputmethod.latin.INPUT_LANGUAGE_SELECTION";
public static Intent getInputLanguageSelectionIntent(String inputMethodId,
int flagsForSubtypeSettings) {
final String action;
Intent intent;
if (android.os.Build.VERSION.SDK_INT
>= /* android.os.Build.VERSION_CODES.HONEYCOMB */ 11) {
// Refer to android.provider.Settings.ACTION_INPUT_METHOD_SUBTYPE_SETTINGS
action = INPUT_METHOD_SUBTYPE_SETTINGS;
intent = new Intent(action);
if (!TextUtils.isEmpty(inputMethodId)) {
intent.putExtra(EXTRA_INPUT_METHOD_ID, inputMethodId);
}
if (flagsForSubtypeSettings > 0) {
intent.setFlags(flagsForSubtypeSettings);
}
} else {
action = INPUT_LANGUAGE_SELECTION;
intent = new Intent(action);
}
return intent;
}
public static Class<?> getClass(String className) {
try {
return Class.forName(className);
} catch (ClassNotFoundException e) {
return null;
}
}
public static Method getMethod(Class<?> targetClass, String name,
Class<?>... parameterTypes) {
if (targetClass == null || TextUtils.isEmpty(name)) return null;
try {
return targetClass.getMethod(name, parameterTypes);
} catch (SecurityException e) {
// ignore
return null;
} catch (NoSuchMethodException e) {
// ignore
return null;
}
}
public static Field getField(Class<?> targetClass, String name) {
try {
return targetClass.getField(name);
} catch (SecurityException e) {
// ignore
return null;
} catch (NoSuchFieldException e) {
// ignore
return null;
}
}
public static Constructor<?> getConstructor(Class<?> targetClass, Class<?>[] types) {
if (targetClass == null || types == null) return null;
try {
return targetClass.getConstructor(types);
} catch (SecurityException e) {
// ignore
return null;
} catch (NoSuchMethodException e) {
// ignore
return null;
}
}
public static Object invoke(
Object receiver, Object defaultValue, Method method, Object... args) {
if (receiver == null || method == null) return defaultValue;
try {
return method.invoke(receiver, args);
} catch (IllegalArgumentException e) {
Log.e(TAG, "Exception in invoke: IllegalArgumentException");
return defaultValue;
} catch (IllegalAccessException e) {
Log.e(TAG, "Exception in invoke: IllegalAccessException");
return defaultValue;
} catch (InvocationTargetException e) {
Log.e(TAG, "Exception in invoke: IllegalTargetException");
return defaultValue;
}
}
public static Object getFieldValue(Object receiver, Object defaultValue, Field field) {
if (receiver == null || field == null) return defaultValue;
try {
return field.get(receiver);
} catch (IllegalArgumentException e) {
Log.e(TAG, "Exception in getFieldValue: IllegalArgumentException");
return defaultValue;
} catch (IllegalAccessException e) {
Log.e(TAG, "Exception in getFieldValue: IllegalAccessException");
return defaultValue;
}
}
public static void setFieldValue(Object receiver, Field field, Object value) {
if (receiver == null || field == null) return;
try {
field.set(receiver, value);
} catch (IllegalArgumentException e) {
Log.e(TAG, "Exception in setFieldValue: IllegalArgumentException");
} catch (IllegalAccessException e) {
Log.e(TAG, "Exception in setFieldValue: IllegalAccessException");
}
}
public static List<InputMethodSubtypeCompatWrapper> copyInputMethodSubtypeListToWrapper(
Object listObject) {
if (!(listObject instanceof List<?>)) return null;
final List<InputMethodSubtypeCompatWrapper> subtypes =
new ArrayList<InputMethodSubtypeCompatWrapper>();
for (Object o: (List<?>)listObject) {
subtypes.add(new InputMethodSubtypeCompatWrapper(o));
}
return subtypes;
}
}
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