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Show word alternatives for spoken input

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With this change, we show alternatives for a word that has
been spoken.The user triggers the display of alternatives by
tapping on the word. The alternatives are currently
generated by a client-side algorithm, but will be improved
when we move to a server-side generation of the alternatives

Change-Id: I454ee28fef9bf97a1b026ce8c605ca4badb39e79
This commit is contained in:
Maryam Garrett 2010-06-28 16:31:12 -04:00
parent c9e24b80ab
commit 57691a3574
2 changed files with 57 additions and 30 deletions
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83
java/src/com/android/inputmethod/latin/LatinIME.java
View file

@ -508,7 +508,6 @@ public class LatinIME extends InputMethodService
mShowingVoiceSuggestions = false;
mImmediatelyAfterVoiceSuggestions = false;
mVoiceInputHighlighted = false;
mWordToSuggestions.clear();
mInputTypeNoAutoCorrect = false;
mPredictionOn = false;
mCompletionOn = false;
@ -702,29 +701,6 @@ public class LatinIME extends InputMethodService
postUpdateOldSuggestions();
}
}
if (VOICE_INSTALLED) {
if (mShowingVoiceSuggestions) {
if (mImmediatelyAfterVoiceSuggestions) {
mImmediatelyAfterVoiceSuggestions = false;
} else {
updateSuggestions();
mShowingVoiceSuggestions = false;
}
}
if (VoiceInput.ENABLE_WORD_CORRECTIONS) {
// If we have alternatives for the current word, then show them.
String word = EditingUtil.getWordAtCursor(
getCurrentInputConnection(), getWordSeparators());
if (word != null && mWordToSuggestions.containsKey(word.trim())) {
mSuggestionShouldReplaceCurrentWord = true;
final List<CharSequence> suggestions = mWordToSuggestions.get(word.trim());
setSuggestions(suggestions, false, true, true);
setCandidatesViewShown(true);
}
}
}
}
@Override
@ -745,6 +721,7 @@ public class LatinIME extends InputMethodService
mVoiceInput.cancel();
}
}
mWordToSuggestions.clear();
mWordHistory.clear();
super.hideWindow();
TextEntryState.endSession();
@ -1512,9 +1489,6 @@ public class LatinIME extends InputMethodService
// Show N-Best alternates, if there is more than one choice.
if (nBest.size() > 1) {
mImmediatelyAfterVoiceSuggestions = true;
mShowingVoiceSuggestions = true;
setSuggestions(nBest.subList(1, nBest.size()), false, true, true);
setCandidatesViewShown(true);
}
mVoiceInputHighlighted = true;
mWordToSuggestions.putAll(mVoiceResults.alternatives);
@ -1682,6 +1656,29 @@ public class LatinIME extends InputMethodService
}
}
private void rememberReplacedWord(CharSequence suggestion) {
if (mShowingVoiceSuggestions) {
// Retain the replaced word in the alternatives array.
InputConnection ic = getCurrentInputConnection();
EditingUtil.Range range = new EditingUtil.Range();
String wordToBeReplaced = EditingUtil.getWordAtCursor(getCurrentInputConnection(),
mWordSeparators, range).trim();
if (!mWordToSuggestions.containsKey(wordToBeReplaced)) {
wordToBeReplaced = wordToBeReplaced.toLowerCase();
}
if (mWordToSuggestions.containsKey(wordToBeReplaced)) {
List<CharSequence> suggestions = mWordToSuggestions.get(wordToBeReplaced);
if (suggestions.contains(suggestion)) {
suggestions.remove(suggestion);
}
suggestions.add(wordToBeReplaced);
mWordToSuggestions.remove(wordToBeReplaced);
mWordToSuggestions.put(suggestion.toString(), suggestions);
}
}
// TODO: implement rememberReplacedWord for typed words
}
private void pickSuggestion(CharSequence suggestion) {
if (mCapsLock) {
suggestion = suggestion.toString().toUpperCase();
@ -1692,6 +1689,7 @@ public class LatinIME extends InputMethodService
}
InputConnection ic = getCurrentInputConnection();
if (ic != null) {
rememberReplacedWord(suggestion);
if (mSuggestionShouldReplaceCurrentWord) {
EditingUtil.deleteWordAtCursor(ic, getWordSeparators());
}
@ -1710,6 +1708,7 @@ public class LatinIME extends InputMethodService
private void setOldSuggestions() {
// TODO: Inefficient to check if touching word and then get the touching word. Do it
// in one go.
mShowingVoiceSuggestions = false;
InputConnection ic = getCurrentInputConnection();
if (ic == null) return;
ic.beginBatchEdit();
@ -1727,7 +1726,35 @@ public class LatinIME extends InputMethodService
if (mWordSeparators.indexOf(touching.charAt(touching.length() - 1)) > 0) {
touching = touching.toString().substring(0, touching.length() - 1);
}
// Search for result in word history
// Search for result in spoken word alternatives
// TODO: possibly combine the spoken suggestions with the typed suggestions.
String selectedWord = touching.toString().trim();
if (!mWordToSuggestions.containsKey(selectedWord)){
selectedWord = selectedWord.toLowerCase();
}
if (mWordToSuggestions.containsKey(selectedWord)){
mShowingVoiceSuggestions = true;
mSuggestionShouldReplaceCurrentWord = true;
underlineWord(touching, range.charsBefore, range.charsAfter);
List<CharSequence> suggestions = mWordToSuggestions.get(selectedWord);
// If the first letter of touching is capitalized, make all the suggestions
// start with a capital letter.
if (Character.isUpperCase((char) touching.charAt(0))) {
for (int i=0; i< suggestions.size(); i++) {
String origSugg = (String) suggestions.get(i);
String capsSugg = origSugg.toUpperCase().charAt(0)
+ origSugg.subSequence(1, origSugg.length()).toString();
suggestions.set(i,capsSugg);
}
}
setSuggestions(suggestions, false, true, true);
setCandidatesViewShown(true);
TextEntryState.selectedForCorrection();
ic.endBatchEdit();
return;
}
// If we didn't find a match, search for result in word history
WordComposer foundWord = null;
WordAlternatives alternatives = null;
for (WordAlternatives entry : mWordHistory) {

4
java/src/com/android/inputmethod/voice/VoiceInput.java
View file

@ -63,7 +63,7 @@ public class VoiceInput implements OnClickListener {
// WARNING! Before enabling this, fix the problem with calling getExtractedText() in
// landscape view. It causes Extracted text updates to be rejected due to a token mismatch
public static boolean ENABLE_WORD_CORRECTIONS = false;
public static boolean ENABLE_WORD_CORRECTIONS = true;
// Dummy word suggestion which means "delete current word"
public static final String DELETE_SYMBOL = " \u00D7 "; // times symbol
@ -308,7 +308,7 @@ public class VoiceInput implements OnClickListener {
SettingsUtil.getSettingsInt(
mContext.getContentResolver(),
SettingsUtil.LATIN_IME_MAX_VOICE_RESULTS,
1));
10));
// Get endpointer params from Gservices.
// TODO: Consider caching these values for improved performance on slower devices.