18e9992a5e
A TextView is used as an empty view, centered on screen with the message. Change-Id: I33825775d6b2ed212e5839cfac84d055b9336667
359 lines
14 KiB
Java
359 lines
14 KiB
Java
/**
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* Copyright (C) 2009 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy
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* of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.android.settings;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.app.Dialog;
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import android.app.ListFragment;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.database.Cursor;
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import android.os.Bundle;
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import android.provider.UserDictionary;
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import android.text.InputType;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.WindowManager;
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import android.widget.AlphabetIndexer;
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import android.widget.EditText;
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import android.widget.ImageView;
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import android.widget.ListAdapter;
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import android.widget.ListView;
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import android.widget.SectionIndexer;
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import android.widget.SimpleCursorAdapter;
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import android.widget.TextView;
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import com.android.settings.SettingsPreferenceFragment.SettingsDialogFragment;
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import java.util.Locale;
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public class UserDictionarySettings extends ListFragment implements DialogCreatable {
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private static final String TAG = "UserDictionarySettings";
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private static final String INSTANCE_KEY_DIALOG_EDITING_WORD = "DIALOG_EDITING_WORD";
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private static final String INSTANCE_KEY_ADDED_WORD = "DIALOG_ADDED_WORD";
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private static final String[] QUERY_PROJECTION = {
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UserDictionary.Words._ID, UserDictionary.Words.WORD
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};
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private static final int INDEX_ID = 0;
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private static final int INDEX_WORD = 1;
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// Either the locale is empty (means the word is applicable to all locales)
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// or the word equals our current locale
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private static final String QUERY_SELECTION =
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UserDictionary.Words.LOCALE + "=?";
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private static final String QUERY_SELECTION_ALL_LOCALES =
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UserDictionary.Words.LOCALE + " is null";
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private static final String DELETE_SELECTION = UserDictionary.Words.WORD + "=?";
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private static final String EXTRA_WORD = "word";
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private static final int OPTIONS_MENU_ADD = Menu.FIRST;
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private static final int DIALOG_ADD_OR_EDIT = 0;
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private static final int FREQUENCY_FOR_USER_DICTIONARY_ADDS = 250;
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/** The word being edited in the dialog (null means the user is adding a word). */
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private String mDialogEditingWord;
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private View mView;
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private Cursor mCursor;
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protected String mLocale;
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private boolean mAddedWordAlready;
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private boolean mAutoReturn;
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private SettingsDialogFragment mDialogFragment;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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mView = inflater.inflate(R.layout.custom_preference_list_fragment, container, false);
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return mView;
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}
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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final Intent intent = getActivity().getIntent();
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final String localeFromIntent =
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null == intent ? null : intent.getStringExtra("locale");
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final Bundle arguments = getArguments();
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final String localeFromArguments =
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null == arguments ? null : arguments.getString("locale");
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final String locale;
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if (null != localeFromArguments) {
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locale = localeFromArguments;
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} else if (null != localeFromIntent) {
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locale = localeFromIntent;
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} else {
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locale = null;
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}
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mLocale = locale;
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mCursor = createCursor(locale);
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TextView emptyView = (TextView)mView.findViewById(R.id.empty);
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emptyView.setText(R.string.user_dict_settings_empty_text);
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final ListView listView = getListView();
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listView.setAdapter(createAdapter());
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listView.setFastScrollEnabled(true);
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listView.setEmptyView(emptyView);
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setHasOptionsMenu(true);
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if (savedInstanceState != null) {
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mDialogEditingWord = savedInstanceState.getString(INSTANCE_KEY_DIALOG_EDITING_WORD);
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mAddedWordAlready = savedInstanceState.getBoolean(INSTANCE_KEY_ADDED_WORD, false);
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}
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}
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@Override
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public void onResume() {
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super.onResume();
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final Intent intent = getActivity().getIntent();
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if (!mAddedWordAlready
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&& intent.getAction().equals("com.android.settings.USER_DICTIONARY_INSERT")) {
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final String word = intent.getStringExtra(EXTRA_WORD);
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mAutoReturn = true;
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if (word != null) {
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showAddOrEditDialog(word);
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}
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}
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putString(INSTANCE_KEY_DIALOG_EDITING_WORD, mDialogEditingWord);
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outState.putBoolean(INSTANCE_KEY_ADDED_WORD, mAddedWordAlready);
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}
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private Cursor createCursor(final String locale) {
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// Locale can be any of:
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// - The string representation of a locale, as returned by Locale#toString()
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// - The empty string. This means we want a cursor returning words valid for all locales.
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// - null. This means we want a cursor for the current locale, whatever this is.
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// Note that this contrasts with the data inside the database, where NULL means "all
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// locales" and there should never be an empty string. The confusion is called by the
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// historical use of null for "all locales".
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// TODO: it should be easy to make this more readable by making the special values
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// human-readable, like "all_locales" and "current_locales" strings, provided they
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// can be guaranteed not to match locales that may exist.
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if ("".equals(locale)) {
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// Case-insensitive sort
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return getActivity().managedQuery(UserDictionary.Words.CONTENT_URI, QUERY_PROJECTION,
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QUERY_SELECTION_ALL_LOCALES, null,
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"UPPER(" + UserDictionary.Words.WORD + ")");
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} else {
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final String queryLocale = null != locale ? locale : Locale.getDefault().toString();
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return getActivity().managedQuery(UserDictionary.Words.CONTENT_URI, QUERY_PROJECTION,
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QUERY_SELECTION, new String[] { queryLocale },
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"UPPER(" + UserDictionary.Words.WORD + ")");
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}
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}
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private ListAdapter createAdapter() {
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return new MyAdapter(getActivity(),
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R.layout.user_dictionary_item, mCursor,
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new String[] { UserDictionary.Words.WORD, UserDictionary.Words._ID },
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new int[] { android.R.id.text1, R.id.delete_button }, this);
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}
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@Override
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public void onListItemClick(ListView l, View v, int position, long id) {
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String word = getWord(position);
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if (word != null) {
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showAddOrEditDialog(word);
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}
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}
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@Override
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public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
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MenuItem actionItem =
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menu.add(0, OPTIONS_MENU_ADD, 0, R.string.user_dict_settings_add_menu_title)
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.setIcon(R.drawable.ic_menu_add);
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actionItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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showAddOrEditDialog(null);
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return true;
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}
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private void showAddOrEditDialog(String editingWord) {
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mDialogEditingWord = editingWord;
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showDialog(DIALOG_ADD_OR_EDIT);
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}
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private String getWord(int position) {
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mCursor.moveToPosition(position);
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// Handle a possible race-condition
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if (mCursor.isAfterLast()) return null;
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return mCursor.getString(
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mCursor.getColumnIndexOrThrow(UserDictionary.Words.WORD));
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}
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@Override
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public Dialog onCreateDialog(int id) {
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final Activity activity = getActivity();
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final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(activity);
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final LayoutInflater inflater = LayoutInflater.from(dialogBuilder.getContext());
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final View content = inflater.inflate(R.layout.dialog_edittext, null);
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final EditText editText = (EditText) content.findViewById(R.id.edittext);
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editText.setText(mDialogEditingWord);
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// No prediction in soft keyboard mode. TODO: Create a better way to disable prediction
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editText.setInputType(InputType.TYPE_CLASS_TEXT
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| InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE);
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AlertDialog dialog = dialogBuilder
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.setTitle(mDialogEditingWord != null
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? R.string.user_dict_settings_edit_dialog_title
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: R.string.user_dict_settings_add_dialog_title)
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.setView(content)
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.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int which) {
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onAddOrEditFinished(editText.getText().toString());
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if (mAutoReturn) activity.onBackPressed();
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}})
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.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int which) {
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if (mAutoReturn) activity.onBackPressed();
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}})
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.create();
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dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE |
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WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
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return dialog;
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}
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private void showDialog(int dialogId) {
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if (mDialogFragment != null) {
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Log.e(TAG, "Old dialog fragment not null!");
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}
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mDialogFragment = new SettingsDialogFragment(this, dialogId);
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mDialogFragment.show(getActivity().getFragmentManager(), Integer.toString(dialogId));
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}
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private void onAddOrEditFinished(String word) {
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if (mDialogEditingWord != null) {
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// The user was editing a word, so do a delete/add
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deleteWord(mDialogEditingWord);
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}
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// Disallow duplicates
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deleteWord(word);
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// TODO: present UI for picking whether to add word to all locales, or current.
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if (null == mLocale) {
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// Null means insert with the default system locale.
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UserDictionary.Words.addWord(getActivity(), word.toString(),
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FREQUENCY_FOR_USER_DICTIONARY_ADDS, UserDictionary.Words.LOCALE_TYPE_CURRENT);
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} else if ("".equals(mLocale)) {
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// Empty string means insert for all languages.
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UserDictionary.Words.addWord(getActivity(), word.toString(),
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FREQUENCY_FOR_USER_DICTIONARY_ADDS, UserDictionary.Words.LOCALE_TYPE_ALL);
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} else {
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// TODO: fix the framework so that it can accept a locale when we add a word
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// to the user dictionary instead of querying the system locale.
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final Locale prevLocale = Locale.getDefault();
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Locale.setDefault(Utils.createLocaleFromString(mLocale));
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UserDictionary.Words.addWord(getActivity(), word.toString(),
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FREQUENCY_FOR_USER_DICTIONARY_ADDS, UserDictionary.Words.LOCALE_TYPE_CURRENT);
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Locale.setDefault(prevLocale);
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}
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if (!mCursor.requery()) {
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throw new IllegalStateException("can't requery on already-closed cursor.");
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}
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mAddedWordAlready = true;
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}
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private void deleteWord(String word) {
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getActivity().getContentResolver().delete(
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UserDictionary.Words.CONTENT_URI, DELETE_SELECTION, new String[] { word });
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}
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private static class MyAdapter extends SimpleCursorAdapter implements SectionIndexer,
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View.OnClickListener {
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private AlphabetIndexer mIndexer;
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private UserDictionarySettings mSettings;
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private ViewBinder mViewBinder = new ViewBinder() {
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public boolean setViewValue(View v, Cursor c, int columnIndex) {
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if (v instanceof ImageView && columnIndex == INDEX_ID) {
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v.setOnClickListener(MyAdapter.this);
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v.setTag(c.getString(INDEX_WORD));
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return true;
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}
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return false;
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}
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};
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public MyAdapter(Context context, int layout, Cursor c, String[] from, int[] to,
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UserDictionarySettings settings) {
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super(context, layout, c, from, to);
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mSettings = settings;
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int wordColIndex = c.getColumnIndexOrThrow(UserDictionary.Words.WORD);
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String alphabet = context.getString(
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com.android.internal.R.string.fast_scroll_alphabet);
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mIndexer = new AlphabetIndexer(c, wordColIndex, alphabet);
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setViewBinder(mViewBinder);
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}
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public int getPositionForSection(int section) {
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return mIndexer.getPositionForSection(section);
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}
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public int getSectionForPosition(int position) {
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return mIndexer.getSectionForPosition(position);
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}
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public Object[] getSections() {
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return mIndexer.getSections();
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}
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public void onClick(View v) {
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mSettings.deleteWord((String) v.getTag());
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}
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}
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}
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