mirror of https://github.com/M66B/FairEmail.git
90 lines
2.9 KiB
Java
90 lines
2.9 KiB
Java
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/*
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* Copyright 2021 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 androidx.emoji2.text;
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import android.annotation.SuppressLint;
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import android.os.Build;
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import androidx.annotation.DoNotInline;
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import androidx.annotation.NonNull;
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import androidx.annotation.RequiresApi;
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import java.lang.reflect.Method;
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import java.util.Collections;
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import java.util.Set;
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class EmojiExclusions {
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private EmojiExclusions() { /* cannot instantiate */ }
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@NonNull
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static Set<int[]> getEmojiExclusions() {
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if (Build.VERSION.SDK_INT >= 34) {
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return EmojiExclusions_Api34.getExclusions();
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} else {
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return EmojiExclusions_Reflections.getExclusions();
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}
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}
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@RequiresApi(34)
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private static class EmojiExclusions_Api34 {
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private EmojiExclusions_Api34() { /* cannot instantiate */ }
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@NonNull
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@DoNotInline
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static Set<int[]> getExclusions() {
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// TODO: Call directly when API34 is published
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return EmojiExclusions_Reflections.getExclusions();
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}
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}
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private static class EmojiExclusions_Reflections {
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private EmojiExclusions_Reflections() { /* cannot instantiate */ }
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/**
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* Attempt to reflectively call EmojiExclusion
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*
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* If anything goes wrong, return Collections.emptySet.
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*/
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@SuppressWarnings("unchecked")
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// will be checked after platform API for 34 published
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@SuppressLint({ "BanUncheckedReflection" })
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@NonNull
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static Set<int[]> getExclusions() {
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try {
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Class<?> clazz = Class.forName("android.text.EmojiConsistency");
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Method method = clazz.getMethod("getEmojiConsistencySet");
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Object result = method.invoke(null);
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if (result == null) {
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return Collections.emptySet();
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}
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// validate the result type before exposing it to caller
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Set<?> resultList = (Set<?>) result;
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for (Object item : resultList) {
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if (!(item instanceof int[])) {
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return Collections.emptySet();
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}
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}
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return (Set<int[]>) resultList;
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} catch (Throwable ignore) {
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return Collections.emptySet();
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}
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}
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}
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}
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