Home | History | Annotate | Download | only in inputmethod 
      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 package com.android.tv.settings.inputmethod;
     17 
     18 import android.app.ActivityManager;
     19 import android.content.Context;
     20 import android.content.Intent;
     21 import android.os.RemoteException;
     22 import android.os.UserHandle;
     23 import android.provider.Settings;
     24 import android.text.TextUtils;
     25 import android.util.Log;
     26 import android.view.inputmethod.InputMethodInfo;
     27 import android.view.inputmethod.InputMethodManager;
     28 
     29 import java.util.ArrayList;
     30 import java.util.List;
     31 
     32 /**
     33  * Helper class for InputMethod
     34  */
     35 public class InputMethodHelper {
     36 
     37     public static final String TAG = "InputMethodHelper";
     38 
     39     /**
     40      * Get list of enabled InputMethod
     41      */
     42     public static List<InputMethodInfo> getEnabledSystemInputMethodList(Context context) {
     43         InputMethodManager inputMethodManager =
     44                 (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
     45         List<InputMethodInfo> enabledInputMethodInfos =
     46                 new ArrayList<>(inputMethodManager.getEnabledInputMethodList());
     47         // Filter auxiliary keyboards out
     48         enabledInputMethodInfos.removeIf(InputMethodInfo::isAuxiliaryIme);
     49         return enabledInputMethodInfos;
     50     }
     51 
     52     /**
     53      * Get id of default InputMethod
     54      */
     55     public static String getDefaultInputMethodId(Context context) {
     56         return Settings.Secure.getString(context.getContentResolver(),
     57                 Settings.Secure.DEFAULT_INPUT_METHOD);
     58     }
     59 
     60     /**
     61      * Set default InputMethod by id
     62      */
     63     public static void setDefaultInputMethodId(Context context, String imid) {
     64         if (imid == null) {
     65             throw new IllegalArgumentException("Null ID");
     66         }
     67 
     68         try {
     69             int userId = ActivityManager.getService().getCurrentUser().id;
     70             Settings.Secure.putStringForUser(context.getContentResolver(),
     71                     Settings.Secure.DEFAULT_INPUT_METHOD, imid, userId);
     72 
     73             Intent intent = new Intent(Intent.ACTION_INPUT_METHOD_CHANGED);
     74             intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
     75             intent.putExtra("input_method_id", imid);
     76             context.sendBroadcastAsUser(intent, UserHandle.CURRENT);
     77         } catch (RemoteException e) {
     78             Log.d(TAG, "set default input method remote exception", e);
     79         }
     80     }
     81 
     82     /**
     83      * Find InputMethod from a List by id.
     84      */
     85     public static InputMethodInfo findInputMethod(String imid,
     86             List<InputMethodInfo> enabledInputMethodInfos) {
     87         for (int i = 0, size = enabledInputMethodInfos.size(); i < size; i++) {
     88             final InputMethodInfo info = enabledInputMethodInfos.get(i);
     89             final String id = info.getId();
     90             if (TextUtils.equals(id, imid)) {
     91                 return info;
     92             }
     93         }
     94         return null;
     95     }
     96 
     97     /**
     98      * Get settings Intent of an InputMethod.
     99      */
    100     public static Intent getInputMethodSettingsIntent(InputMethodInfo imi) {
    101         final Intent intent;
    102         final String settingsActivity = imi.getSettingsActivity();
    103         if (!TextUtils.isEmpty(settingsActivity)) {
    104             intent = new Intent(Intent.ACTION_MAIN);
    105             intent.setClassName(imi.getPackageName(), settingsActivity);
    106         } else {
    107             intent = null;
    108         }
    109         return intent;
    110     }
    111 }
    112