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      1 /*
      2  * Copyright (C) 2011 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.compat;
     18 
     19 import android.view.inputmethod.EditorInfo;
     20 
     21 import java.lang.reflect.Field;
     22 
     23 public final class EditorInfoCompatUtils {
     24     // EditorInfo.IME_FLAG_FORCE_ASCII has been introduced since API#16 (JellyBean).
     25     private static final Field FIELD_IME_FLAG_FORCE_ASCII = CompatUtils.getField(
     26             EditorInfo.class, "IME_FLAG_FORCE_ASCII");
     27     private static final Integer OBJ_IME_FLAG_FORCE_ASCII = (Integer) CompatUtils
     28             .getFieldValue(null, null, FIELD_IME_FLAG_FORCE_ASCII);
     29 
     30     private EditorInfoCompatUtils() {
     31         // This utility class is not publicly instantiable.
     32     }
     33 
     34     public static boolean hasFlagForceAscii(int imeOptions) {
     35         if (OBJ_IME_FLAG_FORCE_ASCII == null)
     36             return false;
     37         return (imeOptions & OBJ_IME_FLAG_FORCE_ASCII) != 0;
     38     }
     39 
     40     public static String imeActionName(int imeOptions) {
     41         final int actionId = imeOptions & EditorInfo.IME_MASK_ACTION;
     42         switch (actionId) {
     43         case EditorInfo.IME_ACTION_UNSPECIFIED:
     44             return "actionUnspecified";
     45         case EditorInfo.IME_ACTION_NONE:
     46             return "actionNone";
     47         case EditorInfo.IME_ACTION_GO:
     48             return "actionGo";
     49         case EditorInfo.IME_ACTION_SEARCH:
     50             return "actionSearch";
     51         case EditorInfo.IME_ACTION_SEND:
     52             return "actionSend";
     53         case EditorInfo.IME_ACTION_NEXT:
     54             return "actionNext";
     55         case EditorInfo.IME_ACTION_DONE:
     56             return "actionDone";
     57         case EditorInfo.IME_ACTION_PREVIOUS:
     58             return "actionPrevious";
     59         default:
     60             return "actionUnknown(" + actionId + ")";
     61         }
     62     }
     63 
     64     public static String imeOptionsName(int imeOptions) {
     65         final String action = imeActionName(imeOptions);
     66         final StringBuilder flags = new StringBuilder();
     67         if ((imeOptions & EditorInfo.IME_FLAG_NO_ENTER_ACTION) != 0) {
     68             flags.append("flagNoEnterAction|");
     69         }
     70         if ((imeOptions & EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) {
     71             flags.append("flagNavigateNext|");
     72         }
     73         if ((imeOptions & EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS) != 0) {
     74             flags.append("flagNavigatePrevious|");
     75         }
     76         if (hasFlagForceAscii(imeOptions)) {
     77             flags.append("flagForceAscii|");
     78         }
     79         return (action != null) ? flags + action : flags.toString();
     80     }
     81 }
     82