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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.settings.inputmethod;
     18 
     19 import android.app.Activity;
     20 import android.content.Intent;
     21 import android.os.Bundle;
     22 import android.os.Message;
     23 import android.os.Messenger;
     24 import android.os.RemoteException;
     25 import android.view.View;
     26 
     27 import com.android.settings.R;
     28 
     29 public class UserDictionaryAddWordActivity extends Activity {
     30 
     31     public static final String MODE_EDIT_ACTION = "com.android.settings.USER_DICTIONARY_EDIT";
     32     public static final String MODE_INSERT_ACTION = "com.android.settings.USER_DICTIONARY_INSERT";
     33 
     34     /* package */ static final int CODE_WORD_ADDED = 0;
     35     /* package */ static final int CODE_CANCEL = 1;
     36     /* package */ static final int CODE_ALREADY_PRESENT = 2;
     37 
     38     private UserDictionaryAddWordContents mContents;
     39 
     40     @Override
     41     public void onCreate(final Bundle savedInstanceState) {
     42         super.onCreate(savedInstanceState);
     43         setContentView(R.layout.user_dictionary_add_word);
     44         final Intent intent = getIntent();
     45         final String action = intent.getAction();
     46         final int mode;
     47         if (MODE_EDIT_ACTION.equals(action)) {
     48             mode = UserDictionaryAddWordContents.MODE_EDIT;
     49         } else if (MODE_INSERT_ACTION.equals(action)) {
     50             mode = UserDictionaryAddWordContents.MODE_INSERT;
     51         } else {
     52             // Can never come here because we only support these two actions in the manifest
     53             throw new RuntimeException("Unsupported action: " + action);
     54         }
     55 
     56         // The following will get the EXTRA_WORD and EXTRA_LOCALE fields that are in the intent.
     57         // We do need to add the action by hand, because UserDictionaryAddWordContents expects
     58         // it to be in the bundle, in the EXTRA_MODE key.
     59         Bundle args = intent.getExtras();
     60         if (args == null) {
     61             args = new Bundle();
     62         }
     63         args.putInt(UserDictionaryAddWordContents.EXTRA_MODE, mode);
     64 
     65         if (null != savedInstanceState) {
     66             // Override options if we have a saved state.
     67             args.putAll(savedInstanceState);
     68         }
     69 
     70         mContents = new UserDictionaryAddWordContents(getWindow().getDecorView(), args);
     71     }
     72 
     73     @Override
     74     public void onSaveInstanceState(final Bundle outState) {
     75         mContents.saveStateIntoBundle(outState);
     76     }
     77 
     78     private void reportBackToCaller(final int resultCode, final Bundle result) {
     79         final Intent senderIntent = getIntent();
     80         if (senderIntent.getExtras() == null) return;
     81         final Object listener = senderIntent.getExtras().get("listener");
     82         if (!(listener instanceof Messenger)) return; // This will work if listener is null too.
     83         final Messenger messenger = (Messenger)listener;
     84 
     85         final Message m = Message.obtain();
     86         m.obj = result;
     87         m.what = resultCode;
     88         try {
     89             messenger.send(m);
     90         } catch (RemoteException e) {
     91             // Couldn't report back, but there is nothing we can do to fix it
     92         }
     93     }
     94 
     95     public void onClickCancel(final View v) {
     96         reportBackToCaller(CODE_CANCEL, null);
     97         finish();
     98     }
     99 
    100     public void onClickConfirm(final View v) {
    101         final Bundle parameters = new Bundle();
    102         final int resultCode = mContents.apply(this, parameters);
    103         reportBackToCaller(resultCode, parameters);
    104         finish();
    105     }
    106 }
    107