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 */
16package com.android.settings.inputmethod;
17
18import android.app.Fragment;
19import android.os.Bundle;
20import android.preference.PreferenceActivity;
21import android.view.LayoutInflater;
22import android.view.Menu;
23import android.view.MenuInflater;
24import android.view.MenuItem;
25import android.view.View;
26import android.view.ViewGroup;
27import android.widget.AdapterView;
28import android.widget.ArrayAdapter;
29import android.widget.Spinner;
30
31import com.android.settings.R;
32import com.android.settings.inputmethod.UserDictionaryAddWordContents.LocaleRenderer;
33
34import java.util.ArrayList;
35import java.util.Locale;
36
37/**
38 * Fragment to add a word/shortcut to the user dictionary.
39 *
40 * As opposed to the UserDictionaryActivity, this is only invoked within Settings
41 * from the UserDictionarySettings.
42 */
43public class UserDictionaryAddWordFragment extends Fragment
44        implements AdapterView.OnItemSelectedListener,
45        com.android.internal.app.LocalePicker.LocaleSelectionListener {
46
47    private static final int OPTIONS_MENU_DELETE = Menu.FIRST;
48
49    private UserDictionaryAddWordContents mContents;
50    private View mRootView;
51    private boolean mIsDeleting = false;
52
53    @Override
54    public void onActivityCreated(Bundle savedInstanceState) {
55        super.onActivityCreated(savedInstanceState);
56        setHasOptionsMenu(true);
57    }
58
59    @Override
60    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedState) {
61        mRootView = inflater.inflate(R.layout.user_dictionary_add_word_fullscreen, null);
62        mIsDeleting = false;
63        if (null == mContents) {
64            mContents = new UserDictionaryAddWordContents(mRootView, getArguments());
65        }
66        return mRootView;
67    }
68
69    @Override
70    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
71        MenuItem actionItem = menu.add(0, OPTIONS_MENU_DELETE, 0, R.string.delete)
72                .setIcon(android.R.drawable.ic_menu_delete);
73        actionItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM |
74                MenuItem.SHOW_AS_ACTION_WITH_TEXT);
75    }
76
77    /**
78     * Callback for the framework when a menu option is pressed.
79     *
80     * This class only supports the delete menu item.
81     * @param MenuItem the item that was pressed
82     * @return false to allow normal menu processing to proceed, true to consume it here
83     */
84    @Override
85    public boolean onOptionsItemSelected(MenuItem item) {
86        if (item.getItemId() == OPTIONS_MENU_DELETE) {
87            mContents.delete(getActivity());
88            mIsDeleting = true;
89            getActivity().onBackPressed();
90            return true;
91        }
92        return false;
93    }
94
95    @Override
96    public void onResume() {
97        super.onResume();
98        // We are being shown: display the word
99        updateSpinner();
100    }
101
102    private void updateSpinner() {
103        final ArrayList<LocaleRenderer> localesList = mContents.getLocalesList(getActivity());
104
105        final Spinner localeSpinner =
106                (Spinner)mRootView.findViewById(R.id.user_dictionary_add_locale);
107        final ArrayAdapter<LocaleRenderer> adapter = new ArrayAdapter<LocaleRenderer>(getActivity(),
108                android.R.layout.simple_spinner_item, localesList);
109        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
110        localeSpinner.setAdapter(adapter);
111        localeSpinner.setOnItemSelectedListener(this);
112    }
113
114    @Override
115    public void onPause() {
116        super.onPause();
117        // We are being hidden: commit changes to the user dictionary, unless we were deleting it
118        if (!mIsDeleting) {
119            mContents.apply(getActivity(), null);
120        }
121    }
122
123    @Override
124    public void onItemSelected(final AdapterView<?> parent, final View view, final int pos,
125            final long id) {
126        final LocaleRenderer locale = (LocaleRenderer)parent.getItemAtPosition(pos);
127        if (locale.isMoreLanguages()) {
128            PreferenceActivity preferenceActivity = (PreferenceActivity)getActivity();
129            preferenceActivity.startPreferenceFragment(new UserDictionaryLocalePicker(this), true);
130        } else {
131            mContents.updateLocale(locale.getLocaleString());
132        }
133    }
134
135    @Override
136    public void onNothingSelected(final AdapterView<?> parent) {
137        // I'm not sure we can come here, but if we do, that's the right thing to do.
138        final Bundle args = getArguments();
139        mContents.updateLocale(args.getString(UserDictionaryAddWordContents.EXTRA_LOCALE));
140    }
141
142    // Called by the locale picker
143    @Override
144    public void onLocaleSelected(final Locale locale) {
145        mContents.updateLocale(locale.toString());
146        getActivity().onBackPressed();
147    }
148}
149