1 /*
2  * Copyright (C) 2018 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 
17 package android.graphics.fonts;
18 
19 import com.android.layoutlib.bridge.Bridge;
20 import com.android.layoutlib.bridge.impl.DelegateManager;
21 import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
22 
23 import android.annotation.NonNull;
24 import android.text.FontConfig;
25 import android.util.ArrayMap;
26 
27 import java.util.ArrayList;
28 
29 import static android.graphics.FontFamily_Delegate.getFontLocation;
30 
31 /**
32  * Delegate implementing the native methods of android.graphics.fonts.SystemFonts
33  * <p>
34  * Through the layoutlib_create tool, the original native methods of SystemFonts have been
35  * replaced by calls to methods of the same name in this delegate class.
36  * <p>
37  * This class behaves like the original native implementation, but in Java, keeping previously
38  * native data into its own objects and mapping them to int that are sent back and forth between it
39  * and the original SystemFonts class.
40  *
41  * @see DelegateManager
42  */
43 public class SystemFonts_Delegate {
44 
45     @LayoutlibDelegate
buildSystemFallback(@onNull String xmlPath, @NonNull String fontDir, @NonNull FontCustomizationParser.Result oemCustomization, @NonNull ArrayMap<String, FontFamily[]> fallbackMap, @NonNull ArrayList<Font> availableFonts)46     /*package*/ static FontConfig.Alias[] buildSystemFallback(@NonNull String xmlPath,
47             @NonNull String fontDir,
48             @NonNull FontCustomizationParser.Result oemCustomization,
49             @NonNull ArrayMap<String, FontFamily[]> fallbackMap,
50             @NonNull ArrayList<Font> availableFonts) {
51         Bridge.sIsTypefaceInitialized = true;
52         return SystemFonts.buildSystemFallback_Original(getFontLocation() + "/standard/fonts.xml",
53                 getFontLocation() + "/", oemCustomization, fallbackMap, availableFonts);
54     }
55 }
56