60 lines
2.3 KiB
Java
60 lines
2.3 KiB
Java
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.compat;
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import android.view.textservice.TextInfo;
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import com.android.inputmethod.annotations.UsedForTesting;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Method;
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import java.util.Locale;
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@UsedForTesting
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public final class TextInfoCompatUtils {
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// Note that TextInfo.getCharSequence() is supposed to be available in API level 21 and later.
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private static final Method TEXT_INFO_GET_CHAR_SEQUENCE =
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CompatUtils.getMethod(TextInfo.class, "getCharSequence");
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private static final Constructor<?> TEXT_INFO_CONSTRUCTOR_FOR_CHAR_SEQUENCE =
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CompatUtils.getConstructor(TextInfo.class, CharSequence.class, int.class, int.class,
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int.class, int.class);
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@UsedForTesting
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public static boolean isCharSequenceSupported() {
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return TEXT_INFO_GET_CHAR_SEQUENCE != null &&
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TEXT_INFO_CONSTRUCTOR_FOR_CHAR_SEQUENCE != null;
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}
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@UsedForTesting
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public static TextInfo newInstance(CharSequence charSequence, int start, int end, int cookie,
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int sequenceNumber) {
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if (TEXT_INFO_CONSTRUCTOR_FOR_CHAR_SEQUENCE != null) {
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return (TextInfo) CompatUtils.newInstance(TEXT_INFO_CONSTRUCTOR_FOR_CHAR_SEQUENCE,
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charSequence, start, end, cookie, sequenceNumber);
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}
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return new TextInfo(charSequence.subSequence(start, end).toString(), cookie,
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sequenceNumber);
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}
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@UsedForTesting
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public static CharSequence getCharSequence(final TextInfo textInfo,
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final CharSequence defaultValue) {
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return (CharSequence) CompatUtils.invoke(textInfo, defaultValue,
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TEXT_INFO_GET_CHAR_SEQUENCE);
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}
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}
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