Home | History | Annotate | Download | only in internal 
      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
      5  * use this file except in compliance with the License. You may obtain a copy of
      6  * 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, WITHOUT
     12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
     13  * License for the specific language governing permissions and limitations under
     14  * the License.
     15  */
     16 
     17 package com.android.inputmethod.keyboard.internal;
     18 
     19 import com.android.inputmethod.keyboard.Keyboard;
     20 
     21 import java.util.HashMap;
     22 
     23 public class KeyboardCodesSet {
     24     private static final HashMap<String, int[]> sLanguageToCodesMap =
     25             new HashMap<String, int[]>();
     26     private static final HashMap<String, Integer> sNameToIdMap = new HashMap<String, Integer>();
     27 
     28     private int[] mCodes = DEFAULT;
     29 
     30     public void setLanguage(final String language) {
     31         final int[] codes = sLanguageToCodesMap.get(language);
     32         mCodes = (codes != null) ? codes : DEFAULT;
     33     }
     34 
     35     public int getCode(final String name) {
     36         Integer id = sNameToIdMap.get(name);
     37         if (id == null) throw new RuntimeException("Unknown key code: " + name);
     38         return mCodes[id];
     39     }
     40 
     41     private static final String[] ID_TO_NAME = {
     42         "key_tab",
     43         "key_enter",
     44         "key_space",
     45         "key_shift",
     46         "key_switch_alpha_symbol",
     47         "key_output_text",
     48         "key_delete",
     49         "key_settings",
     50         "key_shortcut",
     51         "key_action_enter",
     52         "key_action_next",
     53         "key_action_previous",
     54         "key_language_switch",
     55         "key_unspecified",
     56         "key_left_parenthesis",
     57         "key_right_parenthesis",
     58         "key_less_than",
     59         "key_greater_than",
     60         "key_left_square_bracket",
     61         "key_right_square_bracket",
     62         "key_left_curly_bracket",
     63         "key_right_curly_bracket",
     64     };
     65 
     66     private static final int CODE_LEFT_PARENTHESIS = '(';
     67     private static final int CODE_RIGHT_PARENTHESIS = ')';
     68     private static final int CODE_LESS_THAN_SIGN = '<';
     69     private static final int CODE_GREATER_THAN_SIGN = '>';
     70     private static final int CODE_LEFT_SQUARE_BRACKET = '[';
     71     private static final int CODE_RIGHT_SQUARE_BRACKET = ']';
     72     private static final int CODE_LEFT_CURLY_BRACKET = '{';
     73     private static final int CODE_RIGHT_CURLY_BRACKET = '}';
     74 
     75     private static final int[] DEFAULT = {
     76         Keyboard.CODE_TAB,
     77         Keyboard.CODE_ENTER,
     78         Keyboard.CODE_SPACE,
     79         Keyboard.CODE_SHIFT,
     80         Keyboard.CODE_SWITCH_ALPHA_SYMBOL,
     81         Keyboard.CODE_OUTPUT_TEXT,
     82         Keyboard.CODE_DELETE,
     83         Keyboard.CODE_SETTINGS,
     84         Keyboard.CODE_SHORTCUT,
     85         Keyboard.CODE_ACTION_ENTER,
     86         Keyboard.CODE_ACTION_NEXT,
     87         Keyboard.CODE_ACTION_PREVIOUS,
     88         Keyboard.CODE_LANGUAGE_SWITCH,
     89         Keyboard.CODE_UNSPECIFIED,
     90         CODE_LEFT_PARENTHESIS,
     91         CODE_RIGHT_PARENTHESIS,
     92         CODE_LESS_THAN_SIGN,
     93         CODE_GREATER_THAN_SIGN,
     94         CODE_LEFT_SQUARE_BRACKET,
     95         CODE_RIGHT_SQUARE_BRACKET,
     96         CODE_LEFT_CURLY_BRACKET,
     97         CODE_RIGHT_CURLY_BRACKET,
     98     };
     99 
    100     private static final int[] RTL = {
    101         DEFAULT[0],
    102         DEFAULT[1],
    103         DEFAULT[2],
    104         DEFAULT[3],
    105         DEFAULT[4],
    106         DEFAULT[5],
    107         DEFAULT[6],
    108         DEFAULT[7],
    109         DEFAULT[8],
    110         DEFAULT[9],
    111         DEFAULT[10],
    112         DEFAULT[11],
    113         DEFAULT[12],
    114         DEFAULT[13],
    115         CODE_RIGHT_PARENTHESIS,
    116         CODE_LEFT_PARENTHESIS,
    117         CODE_GREATER_THAN_SIGN,
    118         CODE_LESS_THAN_SIGN,
    119         CODE_RIGHT_SQUARE_BRACKET,
    120         CODE_LEFT_SQUARE_BRACKET,
    121         CODE_RIGHT_CURLY_BRACKET,
    122         CODE_LEFT_CURLY_BRACKET,
    123     };
    124 
    125     private static final String LANGUAGE_DEFAULT = "DEFAULT";
    126     private static final String LANGUAGE_ARABIC = "ar";
    127     private static final String LANGUAGE_PERSIAN = "fa";
    128     private static final String LANGUAGE_HEBREW = "iw";
    129 
    130     private static final Object[] LANGUAGE_AND_CODES = {
    131         LANGUAGE_DEFAULT, DEFAULT,
    132         LANGUAGE_ARABIC, RTL,
    133         LANGUAGE_PERSIAN, RTL,
    134         LANGUAGE_HEBREW, RTL,
    135     };
    136 
    137     static {
    138         for (int i = 0; i < ID_TO_NAME.length; i++) {
    139             sNameToIdMap.put(ID_TO_NAME[i], i);
    140         }
    141 
    142         for (int i = 0; i < LANGUAGE_AND_CODES.length; i += 2) {
    143             final String language = (String)LANGUAGE_AND_CODES[i];
    144             final int[] codes = (int[])LANGUAGE_AND_CODES[i + 1];
    145             sLanguageToCodesMap.put(language, codes);
    146         }
    147     }
    148 }
    149