1 package com.hughes.android.dictionary;
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4 import java.io.RandomAccessFile;
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5 import java.util.concurrent.Executor;
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6 import java.util.concurrent.Executors;
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7 import java.util.concurrent.atomic.AtomicBoolean;
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9 import android.app.ListActivity;
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10 import android.content.Context;
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11 import android.content.Intent;
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12 import android.content.SharedPreferences;
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13 import android.graphics.Typeface;
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14 import android.os.Bundle;
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15 import android.os.Handler;
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16 import android.os.Vibrator;
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17 import android.preference.PreferenceManager;
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18 import android.text.Editable;
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19 import android.text.Spannable;
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20 import android.text.TextWatcher;
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21 import android.text.style.StyleSpan;
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22 import android.util.Log;
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23 import android.view.View;
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24 import android.view.ViewGroup;
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25 import android.view.View.OnClickListener;
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26 import android.view.inputmethod.InputMethodManager;
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27 import android.widget.BaseAdapter;
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28 import android.widget.Button;
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29 import android.widget.EditText;
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30 import android.widget.ListAdapter;
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31 import android.widget.TableLayout;
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32 import android.widget.TableRow;
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33 import android.widget.TextView;
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35 import com.hughes.android.dictionary.engine.Dictionary;
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36 import com.hughes.android.dictionary.engine.Index;
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37 import com.hughes.android.dictionary.engine.PairEntry;
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38 import com.hughes.android.dictionary.engine.RowBase;
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39 import com.hughes.android.dictionary.engine.TokenRow;
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40 import com.hughes.android.util.PersistentObjectCache;
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42 public class DictionaryActivity extends ListActivity {
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44 static final String LOG = "QuickDic";
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46 static final int VIBRATE_MILLIS = 100;
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48 RandomAccessFile dictRaf = null;
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49 Dictionary dictionary = null;
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53 // package for test.
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54 final Handler uiHandler = new Handler();
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55 private final Executor searchExecutor = Executors.newSingleThreadExecutor();
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56 private SearchOperation currentSearchOperation = null;
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58 EditText searchText;
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62 private File wordList = null;
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63 private boolean saveOnlyFirstSubentry = false;
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65 // Visible for testing.
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66 ListAdapter indexAdapter = null;
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68 private Vibrator vibrator = null;
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70 public DictionaryActivity() {
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73 public static Intent getIntent(final int dictIndex, final int indexIndex, final String searchToken) {
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74 final Intent intent = new Intent();
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75 intent.setClassName(DictionaryActivity.class.getPackage().getName(), DictionaryActivity.class.getName());
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76 intent.putExtra(C.DICT_INDEX, dictIndex);
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77 intent.putExtra(C.INDEX_INDEX, indexIndex);
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78 intent.putExtra(C.SEARCH_TOKEN, searchToken);
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83 public void onCreate(Bundle savedInstanceState) {
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84 super.onCreate(savedInstanceState);
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86 final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
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88 PersistentObjectCache.init(this);
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89 QuickDicConfig quickDicConfig = PersistentObjectCache.init(
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90 this).read(C.DICTIONARY_CONFIGS, QuickDicConfig.class);
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92 final Intent intent = getIntent();
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94 final int dictIndex = intent.getIntExtra(C.DICT_INDEX, 0);
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96 final DictionaryConfig dictionaryConfig = quickDicConfig.dictionaryConfigs.get(dictIndex);
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97 dictRaf = new RandomAccessFile(dictionaryConfig.localFile, "r");
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98 dictionary = new Dictionary(dictRaf);
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99 } catch (Exception e) {
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100 Log.e(LOG, "Unable to load dictionary.", e);
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101 DictionaryEditActivity.getIntent(dictIndex);
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106 // Pre-load the collators.
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107 searchExecutor.execute(new Runnable() {
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108 public void run() {
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109 final long startMillis = System.currentTimeMillis();
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110 for (final Index index : dictionary.indices) {
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111 index.sortLanguage.getFindCollator();
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112 final com.ibm.icu.text.Collator c = index.sortLanguage
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113 .getSortCollator();
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114 if (c.compare("pre-print", "preppy") >= 0) {
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115 Log.e(LOG, c.getClass()
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116 + " is buggy, lookups may not work properly.");
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119 Log.d(LOG, "Loading collators took:"
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120 + (System.currentTimeMillis() - startMillis));
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124 indexIndex = intent.getIntExtra(C.INDEX_INDEX, 0) % dictionary.indices.size();
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125 index = dictionary.indices.get(indexIndex);
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126 setListAdapter(new IndexAdapter(index));
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128 setContentView(R.layout.dictionary_activity);
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129 searchText = (EditText) findViewById(R.id.SearchText);
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130 langButton = (Button) findViewById(R.id.LangButton);
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132 searchText.addTextChangedListener(new SearchTextWatcher());
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135 final Button clearSearchTextButton = (Button) findViewById(R.id.ClearSearchTextButton);
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136 clearSearchTextButton.setOnClickListener(new OnClickListener() {
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137 public void onClick(View v) {
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138 onClearSearchTextButton(clearSearchTextButton);
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141 clearSearchTextButton.setVisibility(PreferenceManager.getDefaultSharedPreferences(this).getBoolean(
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142 getString(R.string.showClearSearchTextButtonKey), true) ? View.VISIBLE
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145 final Button langButton = (Button) findViewById(R.id.LangButton);
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146 langButton.setOnClickListener(new OnClickListener() {
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147 public void onClick(View v) {
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148 onLanguageButton();
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152 final Button upButton = (Button) findViewById(R.id.UpButton);
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153 upButton.setOnClickListener(new OnClickListener() {
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154 public void onClick(View v) {
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155 onUpDownButton(true);
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158 final Button downButton = (Button) findViewById(R.id.DownButton);
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159 downButton.setOnClickListener(new OnClickListener() {
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160 public void onClick(View v) {
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161 onUpDownButton(false);
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166 registerForContextMenu(getListView());
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168 if (prefs.getBoolean(getString(R.string.vibrateOnFailedSearchKey), true)) {
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169 vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
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172 updateLangButton();
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176 // --------------------------------------------------------------------------
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178 // --------------------------------------------------------------------------
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180 private void onClearSearchTextButton(final Button clearSearchTextButton) {
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181 clearSearchTextButton.requestFocus();
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182 searchText.setText("");
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183 searchText.requestFocus();
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184 Log.d(LOG, "Trying to show soft keyboard.");
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185 final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
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186 manager.showSoftInput(searchText, InputMethodManager.SHOW_IMPLICIT);
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189 void updateLangButton() {
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190 langButton.setText(index.shortName.toUpperCase());
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193 void onLanguageButton() {
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194 if (currentSearchOperation != null) {
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195 currentSearchOperation.interrupted.set(true);
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196 currentSearchOperation = null;
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199 indexIndex = (indexIndex + 1) % dictionary.indices.size();
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200 index = dictionary.indices.get(indexIndex);
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201 indexAdapter = new IndexAdapter(index);
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202 Log.d(LOG, "onLanguageButton, newLang=" + index.longName);
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203 setListAdapter(indexAdapter);
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204 updateLangButton();
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205 onSearchTextChange(searchText.getText().toString());
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208 void onUpDownButton(final boolean up) {
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209 final int firstVisibleRow = getListView().getFirstVisiblePosition();
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210 final RowBase row = index.rows.get(firstVisibleRow);
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211 final TokenRow tokenRow = row.getTokenRow(true);
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212 final int destIndexEntry;
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214 if (row != tokenRow) {
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215 destIndexEntry = tokenRow.referenceIndex;
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217 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
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221 destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size());
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224 Log.d(LOG, "onUpDownButton, destIndexEntry=" + destIndexEntry);
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225 jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
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228 // --------------------------------------------------------------------------
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230 // --------------------------------------------------------------------------
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232 // --------------------------------------------------------------------------
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234 // --------------------------------------------------------------------------
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236 private void searchFinished(final SearchOperation searchOperation) {
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237 if (searchOperation != this.currentSearchOperation) {
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241 final Index.SearchResult searchResult = searchOperation.searchResult;
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242 Log.d(LOG, "searchFinished, " + searchResult.longestPrefixString + ", success=" + searchResult.success);
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244 jumpToRow(searchResult.longestPrefix.startRow);
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246 if (!searchResult.success) {
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247 if (vibrator != null) {
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248 vibrator.vibrate(VIBRATE_MILLIS);
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250 searchText.setText(searchResult.longestPrefixString);
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251 searchText.setSelection(searchResult.longestPrefixString.length());
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256 private final void jumpToRow(final int row) {
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258 getListView().setSelected(true);
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261 final class SearchOperation implements Runnable {
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263 final AtomicBoolean interrupted = new AtomicBoolean(false);
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264 final String searchText;
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267 long searchStartMillis;
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269 Index.SearchResult searchResult;
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271 SearchOperation(final String searchText, final Index index) {
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272 this.searchText = searchText.trim();
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273 this.index = index;
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277 public void run() {
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278 searchStartMillis = System.currentTimeMillis();
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279 searchResult = index.findLongestSubstring(searchText, interrupted);
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280 Log.d(LOG, "searchText=" + searchText + ", searchDuration="
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281 + (System.currentTimeMillis() - searchStartMillis) + ", interrupted="
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282 + interrupted.get());
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283 if (!interrupted.get()) {
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284 uiHandler.post(new Runnable() {
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286 public void run() {
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287 searchFinished(SearchOperation.this);
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295 // --------------------------------------------------------------------------
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297 // --------------------------------------------------------------------------
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299 static final class IndexAdapter extends BaseAdapter {
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303 IndexAdapter(final Index index) {
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304 this.index = index;
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308 public int getCount() {
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309 return index.rows.size();
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313 public Object getItem(int position) {
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314 return index.rows.get(position);
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318 public long getItemId(int position) {
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323 public View getView(int position, View convertView, ViewGroup parent) {
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324 final RowBase row = index.rows.get(position);
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325 if (row instanceof PairEntry.Row) {
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326 return getView((PairEntry.Row) row, parent);
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327 } else if (row instanceof TokenRow) {
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328 return getView((TokenRow) row, parent);
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330 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
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334 private View getView(PairEntry.Row row, ViewGroup parent) {
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335 final TableLayout result = new TableLayout(parent.getContext());
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336 final PairEntry entry = row.getEntry();
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337 final int rowCount = entry.pairs.length;
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338 for (int r = 0; r < rowCount; ++r) {
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339 final TableRow tableRow = new TableRow(result.getContext());
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341 TextView column1 = new TextView(tableRow.getContext());
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342 TextView column2 = new TextView(tableRow.getContext());
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343 final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
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344 layoutParams.weight = 0.5f;
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347 final TextView spacer = new TextView(tableRow.getContext());
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348 spacer.setText(" • ");
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349 tableRow.addView(spacer);
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351 tableRow.addView(column1, layoutParams);
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353 final TextView spacer = new TextView(tableRow.getContext());
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354 spacer.setText(" • ");
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355 tableRow.addView(spacer);
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357 tableRow.addView(column2, layoutParams);
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359 column1.setWidth(1);
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360 column2.setWidth(1);
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362 // TODO: color words by gender
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363 final String col1Text = index.swapPairEntries ? entry.pairs[r].lang2 : entry.pairs[r].lang1;
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364 column1.setText(col1Text, TextView.BufferType.SPANNABLE);
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365 final Spannable col1Spannable = (Spannable) column1.getText();
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368 final String token = row.getTokenRow(true).getToken();
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369 while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
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370 col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos,
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371 startPos + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
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372 startPos += token.length();
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375 final String col2Text = index.swapPairEntries ? entry.pairs[r].lang1 : entry.pairs[r].lang2;
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376 column2.setText(col2Text, TextView.BufferType.NORMAL);
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378 result.addView(tableRow);
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384 private View getView(TokenRow row, ViewGroup parent) {
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385 final TextView textView = new TextView(parent.getContext());
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386 textView.setText(row.getToken());
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387 textView.setTextSize(20);
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393 // --------------------------------------------------------------------------
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395 // --------------------------------------------------------------------------
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397 void onSearchTextChange(final String searchText) {
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398 Log.d(LOG, "onSearchTextChange: " + searchText);
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399 if (currentSearchOperation != null) {
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400 currentSearchOperation.interrupted.set(true);
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402 currentSearchOperation = new SearchOperation(searchText, index);
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403 searchExecutor.execute(currentSearchOperation);
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406 private class SearchTextWatcher implements TextWatcher {
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407 public void afterTextChanged(final Editable searchTextEditable) {
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408 Log.d(LOG, "Search text changed: " + searchText.getText());
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409 if (searchText.hasFocus()) {
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410 // If they were typing to cause the change, update the UI.
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411 onSearchTextChange(searchText.getText().toString());
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415 public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
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419 public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
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