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      1 /*
      2  * Copyright (C) 2012 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 com.android.inputmethod.keyboard.internal;
     18 
     19 import android.content.res.TypedArray;
     20 
     21 import javax.annotation.Nonnull;
     22 import javax.annotation.Nullable;
     23 
     24 public abstract class KeyStyle {
     25     private final KeyboardTextsSet mTextsSet;
     26 
     27     public abstract @Nullable String[] getStringArray(TypedArray a, int index);
     28     public abstract @Nullable String getString(TypedArray a, int index);
     29     public abstract int getInt(TypedArray a, int index, int defaultValue);
     30     public abstract int getFlags(TypedArray a, int index);
     31 
     32     protected KeyStyle(@Nonnull final KeyboardTextsSet textsSet) {
     33         mTextsSet = textsSet;
     34     }
     35 
     36     @Nullable
     37     protected String parseString(final TypedArray a, final int index) {
     38         if (a.hasValue(index)) {
     39             return mTextsSet.resolveTextReference(a.getString(index));
     40         }
     41         return null;
     42     }
     43 
     44     @Nullable
     45     protected String[] parseStringArray(final TypedArray a, final int index) {
     46         if (a.hasValue(index)) {
     47             final String text = mTextsSet.resolveTextReference(a.getString(index));
     48             return MoreKeySpec.splitKeySpecs(text);
     49         }
     50         return null;
     51     }
     52 }
     53