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
17package com.android.settings.inputmethod;
18
19import android.os.Bundle;
20import android.view.LayoutInflater;
21import android.view.Menu;
22import android.view.MenuInflater;
23import android.view.MenuItem;
24import android.view.View;
25import android.view.ViewGroup;
26import android.widget.ArrayAdapter;
27
28import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
29import com.android.settings.R;
30import com.android.settings.core.InstrumentedFragment;
31import com.android.settings.inputmethod.UserDictionaryAddWordContents.LocaleRenderer;
32
33import 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 */
41public 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