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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.settings.inputmethod;
     18 
     19 import android.os.Bundle;
     20 import android.view.LayoutInflater;
     21 import android.view.Menu;
     22 import android.view.MenuInflater;
     23 import android.view.MenuItem;
     24 import android.view.View;
     25 import android.view.ViewGroup;
     26 import android.widget.ArrayAdapter;
     27 
     28 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
     29 import com.android.settings.R;
     30 import com.android.settings.core.InstrumentedFragment;
     31 import com.android.settings.inputmethod.UserDictionaryAddWordContents.LocaleRenderer;
     32 
     33 import java.util.ArrayList;
     34 
     35 /**
     36  * Fragment to add a word/shortcut to the user dictionary.
     37  *
     38  * As opposed to the UserDictionaryActivity, this is only invoked within Settings
     39  * from the UserDictionarySettings.
     40  */
     41 public class UserDictionaryAddWordFragment extends InstrumentedFragment {
     42 
     43     private static final int OPTIONS_MENU_DELETE = Menu.FIRST;
     44 
     45     private UserDictionaryAddWordContents mContents;
     46     private View mRootView;
     47     private boolean mIsDeleting = false;
     48 
     49     @Override
     50     public void onActivityCreated(final Bundle savedInstanceState) {
     51         super.onActivityCreated(savedInstanceState);
     52         setHasOptionsMenu(true);
     53         // Keep the instance so that we remember mContents when configuration changes (eg rotation)
     54         setRetainInstance(true);
     55     }
     56 
     57     @Override
     58     public View onCreateView(final LayoutInflater inflater, final ViewGroup container,
     59             final Bundle savedState) {
     60         mRootView = inflater.inflate(R.layout.user_dictionary_add_word_fullscreen, null);
     61         mIsDeleting = false;
     62         // If we have a non-null mContents object, it's the old value before a configuration
     63         // change (eg rotation) so we need to use its values. Otherwise, read from the arguments.
     64         if (null == mContents) {
     65             mContents = new UserDictionaryAddWordContents(mRootView, getArguments());
     66         } else {
     67             // We create a new mContents object to account for the new situation : a word has
     68             // been added to the user dictionary when we started rotating, and we are now editing
     69             // it. That means in particular if the word undergoes any change, the old version should
     70             // be updated, so the mContents object needs to switch to EDIT mode if it was in
     71             // INSERT mode.
     72             mContents = new UserDictionaryAddWordContents(mRootView,
     73                     mContents /* oldInstanceToBeEdited */);
     74         }
     75         getActivity().getActionBar().setSubtitle(UserDictionarySettingsUtils.getLocaleDisplayName(
     76                 getActivity(), mContents.getCurrentUserDictionaryLocale()));
     77         return mRootView;
     78     }
     79 
     80     @Override
     81     public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
     82         MenuItem actionItem = menu.add(0, OPTIONS_MENU_DELETE, 0, R.string.delete)
     83                 .setIcon(R.drawable.ic_delete);
     84         actionItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM |
     85                 MenuItem.SHOW_AS_ACTION_WITH_TEXT);
     86     }
     87 
     88     /**
     89      * Callback for the framework when a menu option is pressed.
     90      *
     91      * This class only supports the delete menu item.
     92      * @param MenuItem the item that was pressed
     93      * @return false to allow normal menu processing to proceed, true to consume it here
     94      */
     95     @Override
     96     public boolean onOptionsItemSelected(MenuItem item) {
     97         if (item.getItemId() == OPTIONS_MENU_DELETE) {
     98             mContents.delete(getActivity());
     99             mIsDeleting = true;
    100             getActivity().onBackPressed();
    101             return true;
    102         }
    103         return false;
    104     }
    105 
    106     @Override
    107     public int getMetricsCategory() {
    108         return MetricsEvent.INPUTMETHOD_USER_DICTIONARY_ADD_WORD;
    109     }
    110 
    111     @Override
    112     public void onResume() {
    113         super.onResume();
    114         // We are being shown: display the word
    115         updateSpinner();
    116     }
    117 
    118     private void updateSpinner() {
    119         final ArrayList<LocaleRenderer> localesList = mContents.getLocalesList(getActivity());
    120 
    121         final ArrayAdapter<LocaleRenderer> adapter = new ArrayAdapter<LocaleRenderer>(getActivity(),
    122                 android.R.layout.simple_spinner_item, localesList);
    123         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    124     }
    125 
    126     @Override
    127     public void onPause() {
    128         super.onPause();
    129         // We are being hidden: commit changes to the user dictionary, unless we were deleting it
    130         if (!mIsDeleting) {
    131             mContents.apply(getActivity(), null);
    132         }
    133     }
    134 }
    135