SpellChecker.java revision be5f49fb6e17e0b9588d3b94022b7e3eb6d47317
10eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne/* 20eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * Copyright (C) 2011 The Android Open Source Project 30eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * 40eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * Licensed under the Apache License, Version 2.0 (the "License"); 50eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * you may not use this file except in compliance with the License. 60eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * You may obtain a copy of the License at 70eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * 80eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * http://www.apache.org/licenses/LICENSE-2.0 90eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * 100eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * Unless required by applicable law or agreed to in writing, software 110eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * distributed under the License is distributed on an "AS IS" BASIS, 120eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 130eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * See the License for the specific language governing permissions and 140eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne * limitations under the License. 150eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne */ 166435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 176435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunnepackage android.widget; 186435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 196435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.content.Context; 206435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.text.Editable; 216435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.text.Selection; 22653d3a27878d5358b4a91518a756f6b9b3407b07Gilles Debunneimport android.text.SpannableStringBuilder; 236435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.text.Spanned; 24287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunneimport android.text.method.WordIterator; 256435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.text.style.SpellCheckSpan; 266435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.text.style.SuggestionSpan; 276435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.view.textservice.SpellCheckerSession; 286435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.view.textservice.SpellCheckerSession.SpellCheckerSessionListener; 296435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.view.textservice.SuggestionsInfo; 306435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.view.textservice.TextInfo; 316435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport android.view.textservice.TextServicesManager; 326435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 336435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunneimport com.android.internal.util.ArrayUtils; 346435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 35287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunneimport java.text.BreakIterator; 369d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunneimport java.util.Locale; 37287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 386435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 396435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne/** 406435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne * Helper class for TextView. Bridge between the TextView and the Dictionnary service. 416435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne * 426435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne * @hide 436435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne */ 446435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunnepublic class SpellChecker implements SpellCheckerSessionListener { 456435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 46be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne // No more than this number of words will be parsed on each iteration to ensure a minimum 47be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne // lock of the UI thread 48be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne public static final int MAX_NUMBER_OF_WORDS = 50; 49be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 50be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne // Rough estimate, such that the word iterator interval usually does not need to be shifted 51be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne public static final int AVERAGE_WORD_LENGTH = 7; 52be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 53be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne // When parsing, use a character window of that size. Will be shifted if needed 54be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne public static final int WORD_ITERATOR_INTERVAL = AVERAGE_WORD_LENGTH * MAX_NUMBER_OF_WORDS; 55be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 56be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne // Pause between each spell check to keep the UI smooth 57be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne private final static int SPELL_PAUSE_DURATION = 400; // milliseconds 58287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 596435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne private final TextView mTextView; 606435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 619d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne SpellCheckerSession mSpellCheckerSession; 626435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne final int mCookie; 636435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 64b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne // Paired arrays for the (id, spellCheckSpan) pair. A negative id means the associated 65b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne // SpellCheckSpan has been recycled and can be-reused. 66287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // Contains null SpellCheckSpans after index mLength. 676435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne private int[] mIds; 686435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne private SpellCheckSpan[] mSpellCheckSpans; 69b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne // The mLength first elements of the above arrays have been initialized 706435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne private int mLength; 716435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 72287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // Parsers on chunck of text, cutting text into words that will be checked 73287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne private SpellParser[] mSpellParsers = new SpellParser[0]; 74287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 756435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne private int mSpanSequenceCounter = 0; 766435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 779d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne private Locale mCurrentLocale; 789d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 799d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne // Shared by all SpellParsers. Cannot be shared with TextView since it may be used 809d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne // concurrently due to the asynchronous nature of onGetSuggestions. 819d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne private WordIterator mWordIterator; 829d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 83a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne private TextServicesManager mTextServicesManager; 84a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne 85be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne private Runnable mSpellRunnable; 86be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 876435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne public SpellChecker(TextView textView) { 886435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne mTextView = textView; 896435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 909d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne // Arbitrary: these arrays will automatically double their sizes on demand 91b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne final int size = ArrayUtils.idealObjectArraySize(1); 926435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne mIds = new int[size]; 936435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne mSpellCheckSpans = new SpellCheckSpan[size]; 949d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 9505f24700613fb4dce95fb6d5f8fe460d7a30c128satok setLocale(mTextView.getTextServicesLocale()); 969d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 979d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne mCookie = hashCode(); 989d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne } 999d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 100a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne private void resetSession() { 1018b67db17ec91956023e25674efe28a1f5ca970c8Gilles Debunne closeSession(); 1028b67db17ec91956023e25674efe28a1f5ca970c8Gilles Debunne 103a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne mTextServicesManager = (TextServicesManager) mTextView.getContext(). 104a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE); 105a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne if (!mTextServicesManager.isSpellCheckerEnabled()) { 1069b3855b75246596fc704825dd92f9269f52cbe64satok mSpellCheckerSession = null; 1079b3855b75246596fc704825dd92f9269f52cbe64satok } else { 108a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne mSpellCheckerSession = mTextServicesManager.newSpellCheckerSession( 1099b3855b75246596fc704825dd92f9269f52cbe64satok null /* Bundle not currently used by the textServicesManager */, 110a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne mCurrentLocale, this, 1119b3855b75246596fc704825dd92f9269f52cbe64satok false /* means any available languages from current spell checker */); 1129b3855b75246596fc704825dd92f9269f52cbe64satok } 1139d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 1149d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne // Restore SpellCheckSpans in pool 1159d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne for (int i = 0; i < mLength; i++) { 1169d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne mSpellCheckSpans[i].setSpellCheckInProgress(false); 1179d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne mIds[i] = -1; 1189d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne } 1196435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne mLength = 0; 1209d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 1219d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne // Remove existing misspelled SuggestionSpans 1229d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne mTextView.removeMisspelledSpans((Editable) mTextView.getText()); 1239d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 1249d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne // This class is the listener for locale change: warn other locale-aware objects 1259d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne mTextView.onLocaleChanged(); 1266435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 1276435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 128a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne private void setLocale(Locale locale) { 129a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne mCurrentLocale = locale; 130a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne 131a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne resetSession(); 132a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne 133a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne // Change SpellParsers' wordIterator locale 134a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne mWordIterator = new WordIterator(locale); 135a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne 136a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne // This class is the listener for locale change: warn other locale-aware objects 137a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne mTextView.onLocaleChanged(); 138a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne } 139a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne 140186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne /** 141186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne * @return true if a spell checker session has successfully been created. Returns false if not, 142186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne * for instance when spell checking has been disabled in settings. 143186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne */ 144287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne private boolean isSessionActive() { 145186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne return mSpellCheckerSession != null; 146186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne } 147186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne 148186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne public void closeSession() { 149186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne if (mSpellCheckerSession != null) { 150186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne mSpellCheckerSession.close(); 151186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne } 152287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 153287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne final int length = mSpellParsers.length; 154287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne for (int i = 0; i < length; i++) { 1559d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne mSpellParsers[i].finish(); 156287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 157be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 158be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne if (mSpellRunnable != null) { 159be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne mTextView.removeCallbacks(mSpellRunnable); 160be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne } 161186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne } 162186aaf973530f426b9b0e602e9744c591aa4aea9Gilles Debunne 163b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne private int nextSpellCheckSpanIndex() { 164b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne for (int i = 0; i < mLength; i++) { 165b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne if (mIds[i] < 0) return i; 166b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne } 167b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne 168b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne if (mLength == mSpellCheckSpans.length) { 169b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne final int newSize = mLength * 2; 1706435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne int[] newIds = new int[newSize]; 1716435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne SpellCheckSpan[] newSpellCheckSpans = new SpellCheckSpan[newSize]; 172b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne System.arraycopy(mIds, 0, newIds, 0, mLength); 173b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne System.arraycopy(mSpellCheckSpans, 0, newSpellCheckSpans, 0, mLength); 1746435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne mIds = newIds; 1756435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne mSpellCheckSpans = newSpellCheckSpans; 1766435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 1776435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 178b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne mSpellCheckSpans[mLength] = new SpellCheckSpan(); 1796435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne mLength++; 180b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne return mLength - 1; 181b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne } 1826435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 183f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne private void addSpellCheckSpan(Editable editable, int start, int end) { 184b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne final int index = nextSpellCheckSpanIndex(); 185f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne editable.setSpan(mSpellCheckSpans[index], start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 186b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne mIds[index] = mSpanSequenceCounter++; 1876435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 1886435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 1896435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne public void removeSpellCheckSpan(SpellCheckSpan spellCheckSpan) { 1906435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne for (int i = 0; i < mLength; i++) { 1916435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne if (mSpellCheckSpans[i] == spellCheckSpan) { 192b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne mSpellCheckSpans[i].setSpellCheckInProgress(false); 193b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne mIds[i] = -1; 1946435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne return; 1956435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 1966435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 1976435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 1986435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 1996435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne public void onSelectionChanged() { 200b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne spellCheck(); 2016435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 2026435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 203287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne public void spellCheck(int start, int end) { 20405f24700613fb4dce95fb6d5f8fe460d7a30c128satok final Locale locale = mTextView.getTextServicesLocale(); 2059d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne if (mCurrentLocale == null || (!(mCurrentLocale.equals(locale)))) { 2069d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne setLocale(locale); 2079d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne // Re-check the entire text 2089d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne start = 0; 2099d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne end = mTextView.getText().length(); 210a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne } else { 211a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne final boolean spellCheckerActivated = mTextServicesManager.isSpellCheckerEnabled(); 212a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne if (isSessionActive() != spellCheckerActivated) { 213a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne // Spell checker has been turned of or off since last spellCheck 214a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne resetSession(); 215a49ba2f391cd0753eb12d2707bf9fe128e6566f0Gilles Debunne } 2169d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne } 2179d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne 218287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (!isSessionActive()) return; 219287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 220287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne final int length = mSpellParsers.length; 221287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne for (int i = 0; i < length; i++) { 222287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne final SpellParser spellParser = mSpellParsers[i]; 2239d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne if (spellParser.isFinished()) { 224287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne spellParser.init(start, end); 225287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne spellParser.parse(); 226287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne return; 227287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 228287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 229287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 230287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // No available parser found in pool, create a new one 231287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne SpellParser[] newSpellParsers = new SpellParser[length + 1]; 232287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne System.arraycopy(mSpellParsers, 0, newSpellParsers, 0, length); 233287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne mSpellParsers = newSpellParsers; 234287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 235287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne SpellParser spellParser = new SpellParser(); 236287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne mSpellParsers[length] = spellParser; 237287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne spellParser.init(start, end); 238287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne spellParser.parse(); 239287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 240287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 241287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne private void spellCheck() { 2420eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne if (mSpellCheckerSession == null) return; 2439906847cef4307896a64c68fa27da6603a7d8da2Gilles Debunne 244f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne Editable editable = (Editable) mTextView.getText(); 245f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int selectionStart = Selection.getSelectionStart(editable); 246f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int selectionEnd = Selection.getSelectionEnd(editable); 2476435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 2486435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne TextInfo[] textInfos = new TextInfo[mLength]; 2496435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne int textInfosCount = 0; 2506435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 2516435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne for (int i = 0; i < mLength; i++) { 252b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne final SpellCheckSpan spellCheckSpan = mSpellCheckSpans[i]; 2536435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne if (spellCheckSpan.isSpellCheckInProgress()) continue; 2546435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 255f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int start = editable.getSpanStart(spellCheckSpan); 256f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int end = editable.getSpanEnd(spellCheckSpan); 2576435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 2586435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne // Do not check this word if the user is currently editing it 259d6e3494421dff2a091f1011e5266b280b2109843Gilles Debunne if (start >= 0 && end > start && (selectionEnd < start || selectionStart > end)) { 260653d3a27878d5358b4a91518a756f6b9b3407b07Gilles Debunne final String word = (editable instanceof SpannableStringBuilder) ? 261653d3a27878d5358b4a91518a756f6b9b3407b07Gilles Debunne ((SpannableStringBuilder) editable).substring(start, end) : 262653d3a27878d5358b4a91518a756f6b9b3407b07Gilles Debunne editable.subSequence(start, end).toString(); 263b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne spellCheckSpan.setSpellCheckInProgress(true); 2646435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne textInfos[textInfosCount++] = new TextInfo(word, mCookie, mIds[i]); 2656435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 2666435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 2676435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 2686435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne if (textInfosCount > 0) { 269287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (textInfosCount < textInfos.length) { 2706435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne TextInfo[] textInfosCopy = new TextInfo[textInfosCount]; 2716435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne System.arraycopy(textInfos, 0, textInfosCopy, 0, textInfosCount); 2726435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne textInfos = textInfosCopy; 2736435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 274be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 2750eea6681519277310e1733d791bfc0342b8e5ceaGilles Debunne mSpellCheckerSession.getSuggestions(textInfos, SuggestionSpan.SUGGESTIONS_MAX_SIZE, 2766435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne false /* TODO Set sequentialWords to true for initial spell check */); 2776435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 2786435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 2796435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 2806435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne @Override 2816435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne public void onGetSuggestions(SuggestionsInfo[] results) { 282f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne Editable editable = (Editable) mTextView.getText(); 283f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne 2846435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne for (int i = 0; i < results.length; i++) { 2856435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne SuggestionsInfo suggestionsInfo = results[i]; 2866435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne if (suggestionsInfo.getCookie() != mCookie) continue; 2876435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne final int sequenceNumber = suggestionsInfo.getSequence(); 288b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne 289b062e81e3a16af43db3619d721aa522c137d1aa9Gilles Debunne for (int j = 0; j < mLength; j++) { 2906435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne if (sequenceNumber == mIds[j]) { 2916435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne final int attributes = suggestionsInfo.getSuggestionsAttributes(); 2926435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne boolean isInDictionary = 2936435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne ((attributes & SuggestionsInfo.RESULT_ATTR_IN_THE_DICTIONARY) > 0); 2946435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne boolean looksLikeTypo = 2956435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne ((attributes & SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO) > 0); 2966435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 297e1fc4f6c3c7d573f013b707ee962d58f9fb636ddGilles Debunne SpellCheckSpan spellCheckSpan = mSpellCheckSpans[j]; 2988615ac9e049cdf4ab77b0897aca9bceec142c9faGilles Debunne 2996435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne if (!isInDictionary && looksLikeTypo) { 300f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne createMisspelledSuggestionSpan(editable, suggestionsInfo, spellCheckSpan); 3016435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 3028615ac9e049cdf4ab77b0897aca9bceec142c9faGilles Debunne 303f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne editable.removeSpan(spellCheckSpan); 304176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne break; 3056435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 3066435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 3076435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 308287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 309be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne scheduleNewSpellCheck(); 310be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne } 311be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 312be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne private void scheduleNewSpellCheck() { 313be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne if (mSpellRunnable == null) { 314be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne mSpellRunnable = new Runnable() { 315be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne @Override 316be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne public void run() { 317be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne final int length = mSpellParsers.length; 318be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne for (int i = 0; i < length; i++) { 319be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne final SpellParser spellParser = mSpellParsers[i]; 320be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne if (!spellParser.isFinished()) { 321be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne spellParser.parse(); 322be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne break; // run one spell parser at a time to bound running time 323be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne } 324be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne } 325be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne } 326be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne }; 327be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne } else { 328be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne mTextView.removeCallbacks(mSpellRunnable); 329287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 330be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 331be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne mTextView.postDelayed(mSpellRunnable, SPELL_PAUSE_DURATION); 3326435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 3336435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne 3348615ac9e049cdf4ab77b0897aca9bceec142c9faGilles Debunne private void createMisspelledSuggestionSpan(Editable editable, SuggestionsInfo suggestionsInfo, 3358615ac9e049cdf4ab77b0897aca9bceec142c9faGilles Debunne SpellCheckSpan spellCheckSpan) { 336f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int start = editable.getSpanStart(spellCheckSpan); 337f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int end = editable.getSpanEnd(spellCheckSpan); 3388615ac9e049cdf4ab77b0897aca9bceec142c9faGilles Debunne if (start < 0 || end <= start) return; // span was removed in the meantime 339176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 340176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne // Other suggestion spans may exist on that region, with identical suggestions, filter 3418615ac9e049cdf4ab77b0897aca9bceec142c9faGilles Debunne // them out to avoid duplicates. 342f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne SuggestionSpan[] suggestionSpans = editable.getSpans(start, end, SuggestionSpan.class); 343176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne final int length = suggestionSpans.length; 344176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne for (int i = 0; i < length; i++) { 345f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int spanStart = editable.getSpanStart(suggestionSpans[i]); 346f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int spanEnd = editable.getSpanEnd(suggestionSpans[i]); 347176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne if (spanStart != start || spanEnd != end) { 3488615ac9e049cdf4ab77b0897aca9bceec142c9faGilles Debunne // Nulled (to avoid new array allocation) if not on that exact same region 349176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne suggestionSpans[i] = null; 350176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } 351176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } 352176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 353176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne final int suggestionsCount = suggestionsInfo.getSuggestionsCount(); 354176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne String[] suggestions; 355176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne if (suggestionsCount <= 0) { 356176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne // A negative suggestion count is possible 357176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne suggestions = ArrayUtils.emptyArray(String.class); 358176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } else { 359176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne int numberOfSuggestions = 0; 360176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne suggestions = new String[suggestionsCount]; 361176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 362176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne for (int i = 0; i < suggestionsCount; i++) { 363176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne final String spellSuggestion = suggestionsInfo.getSuggestionAt(i); 364176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne if (spellSuggestion == null) break; 365176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne boolean suggestionFound = false; 366176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 367176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne for (int j = 0; j < length && !suggestionFound; j++) { 368176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne if (suggestionSpans[j] == null) break; 369176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 370176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne String[] suggests = suggestionSpans[j].getSuggestions(); 371176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne for (int k = 0; k < suggests.length; k++) { 372176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne if (spellSuggestion.equals(suggests[k])) { 373176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne // The suggestion is already provided by an other SuggestionSpan 374176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne suggestionFound = true; 375176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne break; 376176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } 377176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } 378176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } 379176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 380176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne if (!suggestionFound) { 381176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne suggestions[numberOfSuggestions++] = spellSuggestion; 382176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } 383176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } 384176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 385176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne if (numberOfSuggestions != suggestionsCount) { 386176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne String[] newSuggestions = new String[numberOfSuggestions]; 387176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne System.arraycopy(suggestions, 0, newSuggestions, 0, numberOfSuggestions); 388176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne suggestions = newSuggestions; 389176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne } 3906435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 391176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 392176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne SuggestionSpan suggestionSpan = new SuggestionSpan(mTextView.getContext(), suggestions, 393176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne SuggestionSpan.FLAG_EASY_CORRECT | SuggestionSpan.FLAG_MISSPELLED); 394f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne editable.setSpan(suggestionSpan, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 395176cd0d3b4a612b9fdd88c1d245e9fd93a327bf2Gilles Debunne 3968615ac9e049cdf4ab77b0897aca9bceec142c9faGilles Debunne mTextView.invalidateRegion(start, end); 3976435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne } 398287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 399287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne private class SpellParser { 400287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne private Object mRange = new Object(); 401287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 402287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne public void init(int start, int end) { 403f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne ((Editable) mTextView.getText()).setSpan(mRange, start, end, 404f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 405287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 406287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 4079d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne public void finish() { 408f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne ((Editable) mTextView.getText()).removeSpan(mRange); 409287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 410287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 4119d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne public boolean isFinished() { 412f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne return ((Editable) mTextView.getText()).getSpanStart(mRange) < 0; 413287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 414287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 415287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne public void parse() { 416f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne Editable editable = (Editable) mTextView.getText(); 417287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // Iterate over the newly added text and schedule new SpellCheckSpans 418f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int start = editable.getSpanStart(mRange); 419f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int end = editable.getSpanEnd(mRange); 420be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 421be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne int wordIteratorWindowEnd = Math.min(end, start + WORD_ITERATOR_INTERVAL); 422be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne mWordIterator.setCharSequence(editable, start, wordIteratorWindowEnd); 423287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 424287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // Move back to the beginning of the current word, if any 425287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne int wordStart = mWordIterator.preceding(start); 426287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne int wordEnd; 427287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordStart == BreakIterator.DONE) { 428287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne wordEnd = mWordIterator.following(start); 429287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordEnd != BreakIterator.DONE) { 430287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne wordStart = mWordIterator.getBeginning(wordEnd); 431287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 432287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } else { 433287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne wordEnd = mWordIterator.getEnd(wordStart); 434287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 435287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordEnd == BreakIterator.DONE) { 436f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne editable.removeSpan(mRange); 437287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne return; 438287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 439287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 440287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // We need to expand by one character because we want to include the spans that 441287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // end/start at position start/end respectively. 442f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne SpellCheckSpan[] spellCheckSpans = editable.getSpans(start - 1, end + 1, 443f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne SpellCheckSpan.class); 444f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne SuggestionSpan[] suggestionSpans = editable.getSpans(start - 1, end + 1, 445f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne SuggestionSpan.class); 446287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 447be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne int wordCount = 0; 448287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne boolean scheduleOtherSpellCheck = false; 449287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 450287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne while (wordStart <= end) { 451287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordEnd >= start && wordEnd > wordStart) { 452be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne if (wordCount >= MAX_NUMBER_OF_WORDS) { 453be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne scheduleOtherSpellCheck = true; 454be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne break; 455be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne } 456be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne 457287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // A new word has been created across the interval boundaries with this edit. 458287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // Previous spans (ended on start / started on end) removed, not valid anymore 459287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordStart < start && wordEnd > start) { 460f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne removeSpansAt(editable, start, spellCheckSpans); 461f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne removeSpansAt(editable, start, suggestionSpans); 462287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 463287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 464287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordStart < end && wordEnd > end) { 465f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne removeSpansAt(editable, end, spellCheckSpans); 466f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne removeSpansAt(editable, end, suggestionSpans); 467287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 468287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 469287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // Do not create new boundary spans if they already exist 470287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne boolean createSpellCheckSpan = true; 471287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordEnd == start) { 472287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne for (int i = 0; i < spellCheckSpans.length; i++) { 473f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int spanEnd = editable.getSpanEnd(spellCheckSpans[i]); 474287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (spanEnd == start) { 475287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne createSpellCheckSpan = false; 476287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne break; 477287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 478287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 479287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 480287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 481287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordStart == end) { 482287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne for (int i = 0; i < spellCheckSpans.length; i++) { 483f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int spanStart = editable.getSpanStart(spellCheckSpans[i]); 484287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (spanStart == end) { 485287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne createSpellCheckSpan = false; 486287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne break; 487287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 488287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 489287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 490287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 491287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (createSpellCheckSpan) { 492f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne addSpellCheckSpan(editable, wordStart, wordEnd); 493287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 494be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne wordCount++; 495287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 496287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 497287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne // iterate word by word 498be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne int originalWordEnd = wordEnd; 499287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne wordEnd = mWordIterator.following(wordEnd); 500be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne if ((wordIteratorWindowEnd < end) && 501be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne (wordEnd == BreakIterator.DONE || wordEnd >= wordIteratorWindowEnd)) { 502be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne wordIteratorWindowEnd = Math.min(end, originalWordEnd + WORD_ITERATOR_INTERVAL); 503be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne mWordIterator.setCharSequence(editable, originalWordEnd, wordIteratorWindowEnd); 504be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne wordEnd = mWordIterator.following(originalWordEnd); 505be5f49fb6e17e0b9588d3b94022b7e3eb6d47317Gilles Debunne } 506287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordEnd == BreakIterator.DONE) break; 507287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne wordStart = mWordIterator.getBeginning(wordEnd); 508287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (wordStart == BreakIterator.DONE) { 509287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne break; 510287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 511287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 512287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 513287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (scheduleOtherSpellCheck) { 514f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne editable.setSpan(mRange, wordStart, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 515287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } else { 516f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne editable.removeSpan(mRange); 517287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 518287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 519287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne spellCheck(); 520287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 521287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne 522f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne private <T> void removeSpansAt(Editable editable, int offset, T[] spans) { 523287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne final int length = spans.length; 524287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne for (int i = 0; i < length; i++) { 525287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne final T span = spans[i]; 526f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int start = editable.getSpanStart(span); 527287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (start > offset) continue; 528f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne final int end = editable.getSpanEnd(span); 529287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne if (end < offset) continue; 530f656030a865be029c7c29bab2ea6f5fff07624aeGilles Debunne editable.removeSpan(span); 531287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 532287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 533287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne } 5346435a56a8c02de98befcc8cd743b2b638cffb327Gilles Debunne} 535