1/*
2 * Copyright 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package androidx.core.graphics;
18
19import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP;
20
21import android.graphics.Typeface;
22
23import androidx.annotation.RequiresApi;
24import androidx.annotation.RestrictTo;
25
26import java.lang.reflect.Array;
27import java.lang.reflect.InvocationTargetException;
28import java.lang.reflect.Method;
29
30/**
31 * Implementation of the Typeface compat methods for API 28 and above.
32 * @hide
33 */
34@RestrictTo(LIBRARY_GROUP)
35@RequiresApi(28)
36public class TypefaceCompatApi28Impl extends TypefaceCompatApi26Impl {
37    private static final String TAG = "TypefaceCompatApi28Impl";
38
39    private static final String CREATE_FROM_FAMILIES_WITH_DEFAULT_METHOD =
40            "createFromFamiliesWithDefault";
41    private static final int RESOLVE_BY_FONT_TABLE = -1;
42    private static final String DEFAULT_FAMILY = "sans-serif";
43
44    /**
45     * Call method Typeface#createFromFamiliesWithDefault(
46     *      FontFamily[] families, String fallbackName, int weight, int italic)
47     */
48    @Override
49    protected Typeface createFromFamiliesWithDefault(Object family) {
50        try {
51            Object familyArray = Array.newInstance(mFontFamily, 1);
52            Array.set(familyArray, 0, family);
53            return (Typeface) mCreateFromFamiliesWithDefault.invoke(null /* static method */,
54                    familyArray, DEFAULT_FAMILY, RESOLVE_BY_FONT_TABLE, RESOLVE_BY_FONT_TABLE);
55        } catch (IllegalAccessException | InvocationTargetException e) {
56            throw new RuntimeException(e);
57        }
58    }
59
60    @Override
61    protected Method obtainCreateFromFamiliesWithDefaultMethod(Class fontFamily)
62            throws NoSuchMethodException {
63        Object familyArray = Array.newInstance(fontFamily, 1);
64        Method m =  Typeface.class.getDeclaredMethod(CREATE_FROM_FAMILIES_WITH_DEFAULT_METHOD,
65                familyArray.getClass(), String.class, Integer.TYPE, Integer.TYPE);
66        m.setAccessible(true);
67        return m;
68    }
69}
70