diff options
Diffstat (limited to 'java/src/com/android/inputmethod/latin/utils')
12 files changed, 666 insertions, 294 deletions
diff --git a/java/src/com/android/inputmethod/latin/utils/CursorAnchorInfoUtils.java b/java/src/com/android/inputmethod/latin/utils/CursorAnchorInfoUtils.java new file mode 100644 index 000000000..9dc0524a2 --- /dev/null +++ b/java/src/com/android/inputmethod/latin/utils/CursorAnchorInfoUtils.java @@ -0,0 +1,236 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.inputmethod.latin.utils; + +import android.graphics.Matrix; +import android.graphics.Rect; +import android.inputmethodservice.ExtractEditText; +import android.inputmethodservice.InputMethodService; +import android.text.Layout; +import android.text.Spannable; +import android.view.View; +import android.view.ViewParent; +import android.view.inputmethod.CursorAnchorInfo; +import android.widget.TextView; + +/** + * This class allows input methods to extract {@link CursorAnchorInfo} directly from the given + * {@link TextView}. This is useful and even necessary to support full-screen mode where the default + * {@link InputMethodService#onUpdateCursorAnchorInfo(CursorAnchorInfo)} event callback must be + * ignored because it reports the character locations of the target application rather than + * characters on {@link ExtractEditText}. + */ +public final class CursorAnchorInfoUtils { + private CursorAnchorInfoUtils() { + // This helper class is not instantiable. + } + + private static boolean isPositionVisible(final View view, final float positionX, + final float positionY) { + final float[] position = new float[] { positionX, positionY }; + View currentView = view; + + while (currentView != null) { + if (currentView != view) { + // Local scroll is already taken into account in positionX/Y + position[0] -= currentView.getScrollX(); + position[1] -= currentView.getScrollY(); + } + + if (position[0] < 0 || position[1] < 0 || + position[0] > currentView.getWidth() || position[1] > currentView.getHeight()) { + return false; + } + + if (!currentView.getMatrix().isIdentity()) { + currentView.getMatrix().mapPoints(position); + } + + position[0] += currentView.getLeft(); + position[1] += currentView.getTop(); + + final ViewParent parent = currentView.getParent(); + if (parent instanceof View) { + currentView = (View) parent; + } else { + // We've reached the ViewRoot, stop iterating + currentView = null; + } + } + + // We've been able to walk up the view hierarchy and the position was never clipped + return true; + } + + /** + * Returns {@link CursorAnchorInfo} from the given {@link TextView}. + * @param textView the target text view from which {@link CursorAnchorInfo} is to be extracted. + * @return the {@link CursorAnchorInfo} object based on the current layout. {@code null} if it + * is not feasible. + */ + public static CursorAnchorInfo getCursorAnchorInfo(final TextView textView) { + Layout layout = textView.getLayout(); + if (layout == null) { + return null; + } + + final CursorAnchorInfo.Builder builder = new CursorAnchorInfo.Builder(); + + final int selectionStart = textView.getSelectionStart(); + builder.setSelectionRange(selectionStart, textView.getSelectionEnd()); + + // Construct transformation matrix from view local coordinates to screen coordinates. + final Matrix viewToScreenMatrix = new Matrix(textView.getMatrix()); + final int[] viewOriginInScreen = new int[2]; + textView.getLocationOnScreen(viewOriginInScreen); + viewToScreenMatrix.postTranslate(viewOriginInScreen[0], viewOriginInScreen[1]); + builder.setMatrix(viewToScreenMatrix); + + if (layout.getLineCount() == 0) { + return null; + } + final Rect lineBoundsWithoutOffset = new Rect(); + final Rect lineBoundsWithOffset = new Rect(); + layout.getLineBounds(0, lineBoundsWithoutOffset); + textView.getLineBounds(0, lineBoundsWithOffset); + final float viewportToContentHorizontalOffset = lineBoundsWithOffset.left + - lineBoundsWithoutOffset.left - textView.getScrollX(); + final float viewportToContentVerticalOffset = lineBoundsWithOffset.top + - lineBoundsWithoutOffset.top - textView.getScrollY(); + + final CharSequence text = textView.getText(); + if (text instanceof Spannable) { + // Here we assume that the composing text is marked as SPAN_COMPOSING flag. This is not + // necessarily true, but basically works. + int composingTextStart = text.length(); + int composingTextEnd = 0; + final Spannable spannable = (Spannable) text; + final Object[] spans = spannable.getSpans(0, text.length(), Object.class); + for (Object span : spans) { + final int spanFlag = spannable.getSpanFlags(span); + if ((spanFlag & Spannable.SPAN_COMPOSING) != 0) { + composingTextStart = Math.min(composingTextStart, + spannable.getSpanStart(span)); + composingTextEnd = Math.max(composingTextEnd, spannable.getSpanEnd(span)); + } + } + + final boolean hasComposingText = + (0 <= composingTextStart) && (composingTextStart < composingTextEnd); + if (hasComposingText) { + final CharSequence composingText = text.subSequence(composingTextStart, + composingTextEnd); + builder.setComposingText(composingTextStart, composingText); + + final int minLine = layout.getLineForOffset(composingTextStart); + final int maxLine = layout.getLineForOffset(composingTextEnd - 1); + for (int line = minLine; line <= maxLine; ++line) { + final int lineStart = layout.getLineStart(line); + final int lineEnd = layout.getLineEnd(line); + final int offsetStart = Math.max(lineStart, composingTextStart); + final int offsetEnd = Math.min(lineEnd, composingTextEnd); + final boolean ltrLine = + layout.getParagraphDirection(line) == Layout.DIR_LEFT_TO_RIGHT; + final float[] widths = new float[offsetEnd - offsetStart]; + layout.getPaint().getTextWidths(text, offsetStart, offsetEnd, widths); + final float top = layout.getLineTop(line); + final float bottom = layout.getLineBottom(line); + for (int offset = offsetStart; offset < offsetEnd; ++offset) { + final float charWidth = widths[offset - offsetStart]; + final boolean isRtl = layout.isRtlCharAt(offset); + final float primary = layout.getPrimaryHorizontal(offset); + final float secondary = layout.getSecondaryHorizontal(offset); + // TODO: This doesn't work perfectly for text with custom styles and TAB + // chars. + final float left; + final float right; + if (ltrLine) { + if (isRtl) { + left = secondary - charWidth; + right = secondary; + } else { + left = primary; + right = primary + charWidth; + } + } else { + if (!isRtl) { + left = secondary; + right = secondary + charWidth; + } else { + left = primary - charWidth; + right = primary; + } + } + // TODO: Check top-right and bottom-left as well. + final float localLeft = left + viewportToContentHorizontalOffset; + final float localRight = right + viewportToContentHorizontalOffset; + final float localTop = top + viewportToContentVerticalOffset; + final float localBottom = bottom + viewportToContentVerticalOffset; + final boolean isTopLeftVisible = isPositionVisible(textView, + localLeft, localTop); + final boolean isBottomRightVisible = + isPositionVisible(textView, localRight, localBottom); + int characterBoundsFlags = 0; + if (isTopLeftVisible || isBottomRightVisible) { + characterBoundsFlags |= CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION; + } + if (!isTopLeftVisible || !isTopLeftVisible) { + characterBoundsFlags |= CursorAnchorInfo.FLAG_HAS_INVISIBLE_REGION; + } + if (isRtl) { + characterBoundsFlags |= CursorAnchorInfo.FLAG_IS_RTL; + } + // Here offset is the index in Java chars. + builder.addCharacterBounds(offset, localLeft, localTop, localRight, + localBottom, characterBoundsFlags); + } + } + } + } + + // Treat selectionStart as the insertion point. + if (0 <= selectionStart) { + final int offset = selectionStart; + final int line = layout.getLineForOffset(offset); + final float insertionMarkerX = layout.getPrimaryHorizontal(offset) + + viewportToContentHorizontalOffset; + final float insertionMarkerTop = layout.getLineTop(line) + + viewportToContentVerticalOffset; + final float insertionMarkerBaseline = layout.getLineBaseline(line) + + viewportToContentVerticalOffset; + final float insertionMarkerBottom = layout.getLineBottom(line) + + viewportToContentVerticalOffset; + final boolean isTopVisible = + isPositionVisible(textView, insertionMarkerX, insertionMarkerTop); + final boolean isBottomVisible = + isPositionVisible(textView, insertionMarkerX, insertionMarkerBottom); + int insertionMarkerFlags = 0; + if (isTopVisible || isBottomVisible) { + insertionMarkerFlags |= CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION; + } + if (!isTopVisible || !isBottomVisible) { + insertionMarkerFlags |= CursorAnchorInfo.FLAG_HAS_INVISIBLE_REGION; + } + if (layout.isRtlCharAt(offset)) { + insertionMarkerFlags |= CursorAnchorInfo.FLAG_IS_RTL; + } + builder.setInsertionMarkerLocation(insertionMarkerX, insertionMarkerTop, + insertionMarkerBaseline, insertionMarkerBottom, insertionMarkerFlags); + } + return builder.build(); + } +} diff --git a/java/src/com/android/inputmethod/latin/utils/DistracterFilterCheckingExactMatches.java b/java/src/com/android/inputmethod/latin/utils/DistracterFilterCheckingExactMatches.java deleted file mode 100644 index 0ee6236b1..000000000 --- a/java/src/com/android/inputmethod/latin/utils/DistracterFilterCheckingExactMatches.java +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Copyright (C) 2014 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.inputmethod.latin.utils; - -import java.util.List; -import java.util.Locale; -import java.util.concurrent.TimeUnit; - -import android.content.Context; -import android.util.Log; -import android.util.LruCache; -import android.view.inputmethod.InputMethodSubtype; - -import com.android.inputmethod.latin.DictionaryFacilitator; -import com.android.inputmethod.latin.PrevWordsInfo; - -/** - * This class is used to prevent distracters being added to personalization - * or user history dictionaries - */ -public class DistracterFilterCheckingExactMatches implements DistracterFilter { - private static final String TAG = DistracterFilterCheckingExactMatches.class.getSimpleName(); - private static final boolean DEBUG = false; - - private static final long TIMEOUT_TO_WAIT_LOADING_DICTIONARIES_IN_SECONDS = 120; - private static final int MAX_DISTRACTERS_CACHE_SIZE = 512; - - private final Context mContext; - private final DictionaryFacilitator mDictionaryFacilitator; - private final LruCache<String, Boolean> mDistractersCache; - private final Object mLock = new Object(); - - /** - * Create a DistracterFilter instance. - * - * @param context the context. - */ - public DistracterFilterCheckingExactMatches(final Context context) { - mContext = context; - mDictionaryFacilitator = new DictionaryFacilitator(); - mDistractersCache = new LruCache<>(MAX_DISTRACTERS_CACHE_SIZE); - } - - @Override - public void close() { - mDictionaryFacilitator.closeDictionaries(); - } - - @Override - public void updateEnabledSubtypes(final List<InputMethodSubtype> enabledSubtypes) { - } - - private void loadDictionariesForLocale(final Locale newlocale) throws InterruptedException { - mDictionaryFacilitator.resetDictionaries(mContext, newlocale, - false /* useContactsDict */, false /* usePersonalizedDicts */, - false /* forceReloadMainDictionary */, null /* listener */); - mDictionaryFacilitator.waitForLoadingMainDictionary( - TIMEOUT_TO_WAIT_LOADING_DICTIONARIES_IN_SECONDS, TimeUnit.SECONDS); - } - - /** - * Determine whether a word is a distracter to words in dictionaries. - * - * @param prevWordsInfo the information of previous words. Not used for now. - * @param testedWord the word that will be tested to see whether it is a distracter to words - * in dictionaries. - * @param locale the locale of word. - * @return true if testedWord is a distracter, otherwise false. - */ - @Override - public boolean isDistracterToWordsInDictionaries(final PrevWordsInfo prevWordsInfo, - final String testedWord, final Locale locale) { - if (locale == null) { - return false; - } - if (!locale.equals(mDictionaryFacilitator.getLocale())) { - synchronized (mLock) { - // Reset dictionaries for the locale. - try { - mDistractersCache.evictAll(); - loadDictionariesForLocale(locale); - } catch (final InterruptedException e) { - Log.e(TAG, "Interrupted while waiting for loading dicts in DistracterFilter", - e); - return false; - } - } - } - - final Boolean isCachedDistracter = mDistractersCache.get(testedWord); - if (isCachedDistracter != null && isCachedDistracter) { - if (DEBUG) { - Log.d(TAG, "testedWord: " + testedWord); - Log.d(TAG, "isDistracter: true (cache hit)"); - } - return true; - } - // The tested word is a distracter when there is a word that is exact matched to the tested - // word and its probability is higher than the tested word's probability. - final int perfectMatchFreq = mDictionaryFacilitator.getFrequency(testedWord); - final int exactMatchFreq = mDictionaryFacilitator.getMaxFrequencyOfExactMatches(testedWord); - final boolean isDistracter = perfectMatchFreq < exactMatchFreq; - if (DEBUG) { - Log.d(TAG, "testedWord: " + testedWord); - Log.d(TAG, "perfectMatchFreq: " + perfectMatchFreq); - Log.d(TAG, "exactMatchFreq: " + exactMatchFreq); - Log.d(TAG, "isDistracter: " + isDistracter); - } - if (isDistracter) { - // Add the word to the cache. - mDistractersCache.put(testedWord, Boolean.TRUE); - } - return isDistracter; - } -} diff --git a/java/src/com/android/inputmethod/latin/utils/DistracterFilterCheckingExactMatchesAndSuggestions.java b/java/src/com/android/inputmethod/latin/utils/DistracterFilterCheckingExactMatchesAndSuggestions.java new file mode 100644 index 000000000..27973287d --- /dev/null +++ b/java/src/com/android/inputmethod/latin/utils/DistracterFilterCheckingExactMatchesAndSuggestions.java @@ -0,0 +1,286 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.inputmethod.latin.utils; + +import java.util.HashMap; +import java.util.List; +import java.util.Locale; +import java.util.Map; +import java.util.concurrent.TimeUnit; + +import android.content.Context; +import android.content.res.Resources; +import android.text.InputType; +import android.util.Log; +import android.util.LruCache; +import android.view.inputmethod.EditorInfo; +import android.view.inputmethod.InputMethodSubtype; + +import com.android.inputmethod.keyboard.Keyboard; +import com.android.inputmethod.keyboard.KeyboardId; +import com.android.inputmethod.keyboard.KeyboardLayoutSet; +import com.android.inputmethod.latin.DictionaryFacilitator; +import com.android.inputmethod.latin.PrevWordsInfo; +import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo; +import com.android.inputmethod.latin.WordComposer; +import com.android.inputmethod.latin.settings.SettingsValuesForSuggestion; + +/** + * This class is used to prevent distracters being added to personalization + * or user history dictionaries + */ +public class DistracterFilterCheckingExactMatchesAndSuggestions implements DistracterFilter { + private static final String TAG = + DistracterFilterCheckingExactMatchesAndSuggestions.class.getSimpleName(); + private static final boolean DEBUG = false; + + private static final long TIMEOUT_TO_WAIT_LOADING_DICTIONARIES_IN_SECONDS = 120; + private static final int MAX_DISTRACTERS_CACHE_SIZE = 512; + + private final Context mContext; + private final Map<Locale, InputMethodSubtype> mLocaleToSubtypeMap; + private final Map<Locale, Keyboard> mLocaleToKeyboardMap; + private final DictionaryFacilitator mDictionaryFacilitator; + private final LruCache<String, Boolean> mDistractersCache; + private Keyboard mKeyboard; + private final Object mLock = new Object(); + + // If the score of the top suggestion exceeds this value, the tested word (e.g., + // an OOV, a misspelling, or an in-vocabulary word) would be considered as a distractor to + // words in dictionary. The greater the threshold is, the less likely the tested word would + // become a distractor, which means the tested word will be more likely to be added to + // the dictionary. + private static final float DISTRACTER_WORD_SCORE_THRESHOLD = 0.4f; + + /** + * Create a DistracterFilter instance. + * + * @param context the context. + */ + public DistracterFilterCheckingExactMatchesAndSuggestions(final Context context) { + mContext = context; + mLocaleToSubtypeMap = new HashMap<>(); + mLocaleToKeyboardMap = new HashMap<>(); + mDictionaryFacilitator = new DictionaryFacilitator(); + mDistractersCache = new LruCache<>(MAX_DISTRACTERS_CACHE_SIZE); + mKeyboard = null; + } + + @Override + public void close() { + mDictionaryFacilitator.closeDictionaries(); + } + + @Override + public void updateEnabledSubtypes(final List<InputMethodSubtype> enabledSubtypes) { + final Map<Locale, InputMethodSubtype> newLocaleToSubtypeMap = new HashMap<>(); + if (enabledSubtypes != null) { + for (final InputMethodSubtype subtype : enabledSubtypes) { + final Locale locale = SubtypeLocaleUtils.getSubtypeLocale(subtype); + if (newLocaleToSubtypeMap.containsKey(locale)) { + // Multiple subtypes are enabled for one locale. + // TODO: Investigate what we should do for this case. + continue; + } + newLocaleToSubtypeMap.put(locale, subtype); + } + } + if (mLocaleToSubtypeMap.equals(newLocaleToSubtypeMap)) { + // Enabled subtypes have not been changed. + return; + } + synchronized (mLock) { + mLocaleToSubtypeMap.clear(); + mLocaleToSubtypeMap.putAll(newLocaleToSubtypeMap); + mLocaleToKeyboardMap.clear(); + } + } + + private void loadKeyboardForLocale(final Locale newLocale) { + final Keyboard cachedKeyboard = mLocaleToKeyboardMap.get(newLocale); + if (cachedKeyboard != null) { + mKeyboard = cachedKeyboard; + return; + } + final InputMethodSubtype subtype; + synchronized (mLock) { + subtype = mLocaleToSubtypeMap.get(newLocale); + } + if (subtype == null) { + return; + } + final EditorInfo editorInfo = new EditorInfo(); + editorInfo.inputType = InputType.TYPE_CLASS_TEXT; + final KeyboardLayoutSet.Builder builder = new KeyboardLayoutSet.Builder( + mContext, editorInfo); + final Resources res = mContext.getResources(); + final int keyboardWidth = ResourceUtils.getDefaultKeyboardWidth(res); + final int keyboardHeight = ResourceUtils.getDefaultKeyboardHeight(res); + builder.setKeyboardGeometry(keyboardWidth, keyboardHeight); + builder.setSubtype(subtype); + builder.setIsSpellChecker(false /* isSpellChecker */); + final KeyboardLayoutSet layoutSet = builder.build(); + mKeyboard = layoutSet.getKeyboard(KeyboardId.ELEMENT_ALPHABET); + } + + private void loadDictionariesForLocale(final Locale newlocale) throws InterruptedException { + mDictionaryFacilitator.resetDictionaries(mContext, newlocale, + false /* useContactsDict */, false /* usePersonalizedDicts */, + false /* forceReloadMainDictionary */, null /* listener */); + mDictionaryFacilitator.waitForLoadingMainDictionary( + TIMEOUT_TO_WAIT_LOADING_DICTIONARIES_IN_SECONDS, TimeUnit.SECONDS); + } + + /** + * Determine whether a word is a distracter to words in dictionaries. + * + * @param prevWordsInfo the information of previous words. Not used for now. + * @param testedWord the word that will be tested to see whether it is a distracter to words + * in dictionaries. + * @param locale the locale of word. + * @return true if testedWord is a distracter, otherwise false. + */ + @Override + public boolean isDistracterToWordsInDictionaries(final PrevWordsInfo prevWordsInfo, + final String testedWord, final Locale locale) { + if (locale == null) { + return false; + } + if (!locale.equals(mDictionaryFacilitator.getLocale())) { + synchronized (mLock) { + if (!mLocaleToSubtypeMap.containsKey(locale)) { + Log.e(TAG, "Locale " + locale + " is not enabled."); + // TODO: Investigate what we should do for disabled locales. + return false; + } + loadKeyboardForLocale(locale); + // Reset dictionaries for the locale. + try { + mDistractersCache.evictAll(); + loadDictionariesForLocale(locale); + } catch (final InterruptedException e) { + Log.e(TAG, "Interrupted while waiting for loading dicts in DistracterFilter", + e); + return false; + } + } + } + + if (DEBUG) { + Log.d(TAG, "testedWord: " + testedWord); + } + final Boolean isCachedDistracter = mDistractersCache.get(testedWord); + if (isCachedDistracter != null && isCachedDistracter) { + if (DEBUG) { + Log.d(TAG, "isDistracter: true (cache hit)"); + } + return true; + } + + final boolean isDistracterCheckedByGetMaxFreqencyOfExactMatches = + checkDistracterUsingMaxFreqencyOfExactMatches(testedWord); + if (isDistracterCheckedByGetMaxFreqencyOfExactMatches) { + // Add the word to the cache. + mDistractersCache.put(testedWord, Boolean.TRUE); + return true; + } + final boolean isValidWord = mDictionaryFacilitator.isValidWord(testedWord, + false /* ignoreCase */); + if (isValidWord) { + // Valid word is not a distractor. + if (DEBUG) { + Log.d(TAG, "isDistracter: false (valid word)"); + } + return false; + } + + final boolean isDistracterCheckedByGetSuggestion = + checkDistracterUsingGetSuggestions(testedWord); + if (isDistracterCheckedByGetSuggestion) { + // Add the word to the cache. + mDistractersCache.put(testedWord, Boolean.TRUE); + return true; + } + return false; + } + + private boolean checkDistracterUsingMaxFreqencyOfExactMatches(final String testedWord) { + // The tested word is a distracter when there is a word that is exact matched to the tested + // word and its probability is higher than the tested word's probability. + final int perfectMatchFreq = mDictionaryFacilitator.getFrequency(testedWord); + final int exactMatchFreq = mDictionaryFacilitator.getMaxFrequencyOfExactMatches(testedWord); + final boolean isDistracter = perfectMatchFreq < exactMatchFreq; + if (DEBUG) { + Log.d(TAG, "perfectMatchFreq: " + perfectMatchFreq); + Log.d(TAG, "exactMatchFreq: " + exactMatchFreq); + Log.d(TAG, "isDistracter: " + isDistracter); + } + return isDistracter; + } + + private boolean checkDistracterUsingGetSuggestions(final String testedWord) { + if (mKeyboard == null) { + return false; + } + final SettingsValuesForSuggestion settingsValuesForSuggestion = + new SettingsValuesForSuggestion(false /* blockPotentiallyOffensive */, + false /* spaceAwareGestureEnabled */, + null /* additionalFeaturesSettingValues */); + final int trailingSingleQuotesCount = StringUtils.getTrailingSingleQuotesCount(testedWord); + final String consideredWord = trailingSingleQuotesCount > 0 ? + testedWord.substring(0, testedWord.length() - trailingSingleQuotesCount) : + testedWord; + final WordComposer composer = new WordComposer(); + final int[] codePoints = StringUtils.toCodePointArray(testedWord); + + synchronized (mLock) { + final int[] coordinates = mKeyboard.getCoordinates(codePoints); + composer.setComposingWord(codePoints, coordinates); + final SuggestionResults suggestionResults = mDictionaryFacilitator.getSuggestionResults( + composer, PrevWordsInfo.EMPTY_PREV_WORDS_INFO, mKeyboard.getProximityInfo(), + settingsValuesForSuggestion, 0 /* sessionId */); + if (suggestionResults.isEmpty()) { + return false; + } + final SuggestedWordInfo firstSuggestion = suggestionResults.first(); + final boolean isDistractor = suggestionExceedsDistracterThreshold( + firstSuggestion, consideredWord, DISTRACTER_WORD_SCORE_THRESHOLD); + if (DEBUG) { + Log.d(TAG, "isDistracter: " + isDistractor); + } + return isDistractor; + } + } + + private static boolean suggestionExceedsDistracterThreshold(final SuggestedWordInfo suggestion, + final String consideredWord, final float distracterThreshold) { + if (suggestion == null) { + return false; + } + final int suggestionScore = suggestion.mScore; + final float normalizedScore = BinaryDictionaryUtils.calcNormalizedScore( + consideredWord, suggestion.mWord, suggestionScore); + if (DEBUG) { + Log.d(TAG, "normalizedScore: " + normalizedScore); + Log.d(TAG, "distracterThreshold: " + distracterThreshold); + } + if (normalizedScore > distracterThreshold) { + return true; + } + return false; + } +} diff --git a/java/src/com/android/inputmethod/latin/utils/FeedbackUtils.java b/java/src/com/android/inputmethod/latin/utils/FeedbackUtils.java deleted file mode 100644 index ec7eaf4a0..000000000 --- a/java/src/com/android/inputmethod/latin/utils/FeedbackUtils.java +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (C) 2013 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.inputmethod.latin.utils; - -import android.content.Context; -import android.content.Intent; - -public class FeedbackUtils { - public static boolean isFeedbackFormSupported() { - return false; - } - - public static void showFeedbackForm(Context context) { - } - - public static int getAboutKeyboardTitleResId() { - return 0; - } - - public static Intent getAboutKeyboardIntent(Context context) { - return null; - } -} diff --git a/java/src/com/android/inputmethod/latin/utils/FileTransforms.java b/java/src/com/android/inputmethod/latin/utils/FileTransforms.java deleted file mode 100644 index 9f4584ec9..000000000 --- a/java/src/com/android/inputmethod/latin/utils/FileTransforms.java +++ /dev/null @@ -1,38 +0,0 @@ -/* - * Copyright (C) 2011 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.inputmethod.latin.utils; - -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.util.zip.GZIPInputStream; - -public final class FileTransforms { - public static OutputStream getCryptedStream(OutputStream out) { - // Crypt the stream. - return out; - } - - public static InputStream getDecryptedStream(InputStream in) { - // Decrypt the stream. - return in; - } - - public static InputStream getUncompressedStream(InputStream in) throws IOException { - return new GZIPInputStream(in); - } -} diff --git a/java/src/com/android/inputmethod/latin/utils/FragmentUtils.java b/java/src/com/android/inputmethod/latin/utils/FragmentUtils.java index 08f5b0b41..c2167a76b 100644 --- a/java/src/com/android/inputmethod/latin/utils/FragmentUtils.java +++ b/java/src/com/android/inputmethod/latin/utils/FragmentUtils.java @@ -19,12 +19,13 @@ package com.android.inputmethod.latin.utils; import com.android.inputmethod.dictionarypack.DictionarySettingsFragment; import com.android.inputmethod.latin.about.AboutPreferences; import com.android.inputmethod.latin.settings.AdvancedSettingsFragment; +import com.android.inputmethod.latin.settings.AppearanceSettingsFragment; import com.android.inputmethod.latin.settings.CorrectionSettingsFragment; import com.android.inputmethod.latin.settings.CustomInputStyleSettingsFragment; import com.android.inputmethod.latin.settings.DebugSettingsFragment; import com.android.inputmethod.latin.settings.GestureSettingsFragment; -import com.android.inputmethod.latin.settings.InputSettingsFragment; import com.android.inputmethod.latin.settings.MultiLingualSettingsFragment; +import com.android.inputmethod.latin.settings.PreferencesSettingsFragment; import com.android.inputmethod.latin.settings.SettingsFragment; import com.android.inputmethod.latin.settings.ThemeSettingsFragment; import com.android.inputmethod.latin.spellcheck.SpellCheckerSettingsFragment; @@ -40,7 +41,8 @@ public class FragmentUtils { static { sLatinImeFragments.add(DictionarySettingsFragment.class.getName()); sLatinImeFragments.add(AboutPreferences.class.getName()); - sLatinImeFragments.add(InputSettingsFragment.class.getName()); + sLatinImeFragments.add(PreferencesSettingsFragment.class.getName()); + sLatinImeFragments.add(AppearanceSettingsFragment.class.getName()); sLatinImeFragments.add(ThemeSettingsFragment.class.getName()); sLatinImeFragments.add(MultiLingualSettingsFragment.class.getName()); sLatinImeFragments.add(CustomInputStyleSettingsFragment.class.getName()); diff --git a/java/src/com/android/inputmethod/latin/utils/ImportantNoticeUtils.java b/java/src/com/android/inputmethod/latin/utils/ImportantNoticeUtils.java index 8b7077879..ea406fa75 100644 --- a/java/src/com/android/inputmethod/latin/utils/ImportantNoticeUtils.java +++ b/java/src/com/android/inputmethod/latin/utils/ImportantNoticeUtils.java @@ -23,15 +23,24 @@ import android.provider.Settings.SettingNotFoundException; import android.text.TextUtils; import android.util.Log; +import com.android.inputmethod.annotations.UsedForTesting; import com.android.inputmethod.latin.R; +import java.util.concurrent.TimeUnit; + public final class ImportantNoticeUtils { private static final String TAG = ImportantNoticeUtils.class.getSimpleName(); // {@link SharedPreferences} name to save the last important notice version that has been // displayed to users. private static final String PREFERENCE_NAME = "important_notice_pref"; - private static final String KEY_IMPORTANT_NOTICE_VERSION = "important_notice_version"; + @UsedForTesting + static final String KEY_IMPORTANT_NOTICE_VERSION = "important_notice_version"; + @UsedForTesting + static final String KEY_TIMESTAMP_OF_FIRST_IMPORTANT_NOTICE = + "timestamp_of_first_important_notice"; + @UsedForTesting + static final long TIMEOUT_OF_IMPORTANT_NOTICE = TimeUnit.HOURS.toMillis(23); public static final int VERSION_TO_ENABLE_PERSONALIZED_SUGGESTIONS = 1; // Copy of the hidden {@link Settings.Secure#USER_SETUP_COMPLETE} settings key. @@ -56,15 +65,18 @@ public final class ImportantNoticeUtils { } } - private static SharedPreferences getImportantNoticePreferences(final Context context) { + @UsedForTesting + static SharedPreferences getImportantNoticePreferences(final Context context) { return context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); } - private static int getCurrentImportantNoticeVersion(final Context context) { + @UsedForTesting + static int getCurrentImportantNoticeVersion(final Context context) { return context.getResources().getInteger(R.integer.config_important_notice_version); } - private static int getLastImportantNoticeVersion(final Context context) { + @UsedForTesting + static int getLastImportantNoticeVersion(final Context context) { return getImportantNoticePreferences(context).getInt(KEY_IMPORTANT_NOTICE_VERSION, 0); } @@ -77,6 +89,20 @@ public final class ImportantNoticeUtils { return getCurrentImportantNoticeVersion(context) > lastVersion; } + @UsedForTesting + static boolean hasTimeoutPassed(final Context context, final long currentTimeInMillis) { + final SharedPreferences prefs = getImportantNoticePreferences(context); + if (!prefs.contains(KEY_TIMESTAMP_OF_FIRST_IMPORTANT_NOTICE)) { + prefs.edit() + .putLong(KEY_TIMESTAMP_OF_FIRST_IMPORTANT_NOTICE, currentTimeInMillis) + .apply(); + } + final long firstDisplayTimeInMillis = prefs.getLong( + KEY_TIMESTAMP_OF_FIRST_IMPORTANT_NOTICE, currentTimeInMillis); + final long elapsedTime = currentTimeInMillis - firstDisplayTimeInMillis; + return elapsedTime >= TIMEOUT_OF_IMPORTANT_NOTICE; + } + public static boolean shouldShowImportantNotice(final Context context) { if (!hasNewImportantNotice(context)) { return false; @@ -88,6 +114,10 @@ public final class ImportantNoticeUtils { if (isInSystemSetupWizard(context)) { return false; } + if (hasTimeoutPassed(context, System.currentTimeMillis())) { + updateLastImportantNoticeVersion(context); + return false; + } return true; } @@ -95,11 +125,12 @@ public final class ImportantNoticeUtils { getImportantNoticePreferences(context) .edit() .putInt(KEY_IMPORTANT_NOTICE_VERSION, getNextImportantNoticeVersion(context)) + .remove(KEY_TIMESTAMP_OF_FIRST_IMPORTANT_NOTICE) .apply(); } public static String getNextImportantNoticeTitle(final Context context) { - final int nextVersion = getCurrentImportantNoticeVersion(context); + final int nextVersion = getNextImportantNoticeVersion(context); final String[] importantNoticeTitleArray = context.getResources().getStringArray( R.array.important_notice_title_array); if (nextVersion > 0 && nextVersion < importantNoticeTitleArray.length) { diff --git a/java/src/com/android/inputmethod/latin/utils/MetadataFileUriGetter.java b/java/src/com/android/inputmethod/latin/utils/MetadataFileUriGetter.java deleted file mode 100644 index 9ad319da6..000000000 --- a/java/src/com/android/inputmethod/latin/utils/MetadataFileUriGetter.java +++ /dev/null @@ -1,38 +0,0 @@ -/* - * Copyright (C) 2013 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.inputmethod.latin.utils; - -import com.android.inputmethod.latin.R; - -import android.content.Context; - -/** - * Helper class to get the metadata URI and the additional ID. - */ -public class MetadataFileUriGetter { - private MetadataFileUriGetter() { - // This helper class is not instantiable. - } - - public static String getMetadataUri(final Context context) { - return context.getString(R.string.dictionary_pack_metadata_uri); - } - - public static String getMetadataAdditionalId(final Context context) { - return ""; - } -} diff --git a/java/src/com/android/inputmethod/latin/utils/StatsUtils.java b/java/src/com/android/inputmethod/latin/utils/StatsUtils.java deleted file mode 100644 index 79c19d077..000000000 --- a/java/src/com/android/inputmethod/latin/utils/StatsUtils.java +++ /dev/null @@ -1,34 +0,0 @@ -/* - * Copyright (C) 2014 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.inputmethod.latin.utils; - -import android.content.Context; -import com.android.inputmethod.latin.settings.SettingsValues; - -public final class StatsUtils { - public static void init(final Context context) { - } - - public static void onCreate(final SettingsValues settingsValues) { - } - - public static void onLoadSettings(final SettingsValues settingsValues) { - } - - public static void onDestroy() { - } -} diff --git a/java/src/com/android/inputmethod/latin/utils/StringUtils.java b/java/src/com/android/inputmethod/latin/utils/StringUtils.java index 38f0b3fee..79128dbd2 100644 --- a/java/src/com/android/inputmethod/latin/utils/StringUtils.java +++ b/java/src/com/android/inputmethod/latin/utils/StringUtils.java @@ -37,6 +37,14 @@ public final class StringUtils { private static final String EMPTY_STRING = ""; + private static final char CHAR_LINE_FEED = 0X000A; + private static final char CHAR_VERTICAL_TAB = 0X000B; + private static final char CHAR_FORM_FEED = 0X000C; + private static final char CHAR_CARRIAGE_RETURN = 0X000D; + private static final char CHAR_NEXT_LINE = 0X0085; + private static final char CHAR_LINE_SEPARATOR = 0X2028; + private static final char CHAR_PARAGRAPH_SEPARATOR = 0X2029; + private StringUtils() { // This utility class is not publicly instantiable. } @@ -123,20 +131,20 @@ public final class StringUtils { public static String capitalizeFirstCodePoint(final String s, final Locale locale) { if (s.length() <= 1) { - return s.toUpperCase(locale); + return toUpperCaseOfStringForLocale(s, true /* needsToUpperCase */, locale); } // Please refer to the comment below in // {@link #capitalizeFirstAndDowncaseRest(String,Locale)} as this has the same shortcomings final int cutoff = s.offsetByCodePoints(0, 1); - return s.substring(0, cutoff).toUpperCase(locale) + s.substring(cutoff); + return toUpperCaseOfStringForLocale( + s.substring(0, cutoff), true /* needsToUpperCase */, locale) + s.substring(cutoff); } public static String capitalizeFirstAndDowncaseRest(final String s, final Locale locale) { if (s.length() <= 1) { - return s.toUpperCase(locale); + return toUpperCaseOfStringForLocale(s, true /* needsToUpperCase */, locale); } // TODO: fix the bugs below - // - This does not work for Greek, because it returns upper case instead of title case. // - It does not work for Serbian, because it fails to account for the "lj" character, // which should be "Lj" in title case and "LJ" in upper case. // - It does not work for Dutch, because it fails to account for the "ij" digraph when it's @@ -144,7 +152,9 @@ public final class StringUtils { // be capitalized as "IJ" as if they were a single letter in most words (not all). If the // unicode char for the ligature is used however, it works. final int cutoff = s.offsetByCodePoints(0, 1); - return s.substring(0, cutoff).toUpperCase(locale) + s.substring(cutoff).toLowerCase(locale); + final String titleCaseFirstLetter = toUpperCaseOfStringForLocale( + s.substring(0, cutoff), true /* needsToUpperCase */, locale); + return titleCaseFirstLetter + s.substring(cutoff).toLowerCase(locale); } private static final int[] EMPTY_CODEPOINTS = {}; @@ -481,10 +491,23 @@ public final class StringUtils { return bytes; } + private static final String LANGUAGE_GREEK = "el"; + + private static Locale getLocaleUsedForToTitleCase(final Locale locale) { + // In Greek locale {@link String#toUpperCase(Locale)} eliminates accents from its result. + // In order to get accented upper case letter, {@link Locale#ROOT} should be used. + if (LANGUAGE_GREEK.equals(locale.getLanguage())) { + return Locale.ROOT; + } + return locale; + } + public static String toUpperCaseOfStringForLocale(final String text, final boolean needsToUpperCase, final Locale locale) { - if (text == null || !needsToUpperCase) return text; - return text.toUpperCase(locale); + if (text == null || !needsToUpperCase) { + return text; + } + return text.toUpperCase(getLocaleUsedForToTitleCase(locale)); } public static int toUpperCaseOfCodeForLocale(final int code, final boolean needsToUpperCase, @@ -594,4 +617,30 @@ public final class StringUtils { return sb + "]"; } } + + /** + * Returns whether the last composed word contains line-breaking character (e.g. CR or LF). + * @param text the text to be examined. + * @return {@code true} if the last composed word contains line-breaking separator. + */ + @UsedForTesting + public static boolean hasLineBreakCharacter(final String text) { + if (TextUtils.isEmpty(text)) { + return false; + } + for (int i = text.length() - 1; i >= 0; --i) { + final char c = text.charAt(i); + switch (c) { + case CHAR_LINE_FEED: + case CHAR_VERTICAL_TAB: + case CHAR_FORM_FEED: + case CHAR_CARRIAGE_RETURN: + case CHAR_NEXT_LINE: + case CHAR_LINE_SEPARATOR: + case CHAR_PARAGRAPH_SEPARATOR: + return true; + } + } + return false; + } } diff --git a/java/src/com/android/inputmethod/latin/utils/SuggestionResults.java b/java/src/com/android/inputmethod/latin/utils/SuggestionResults.java index 7170bd789..8cd49509f 100644 --- a/java/src/com/android/inputmethod/latin/utils/SuggestionResults.java +++ b/java/src/com/android/inputmethod/latin/utils/SuggestionResults.java @@ -32,14 +32,18 @@ import java.util.TreeSet; public final class SuggestionResults extends TreeSet<SuggestedWordInfo> { public final Locale mLocale; public final ArrayList<SuggestedWordInfo> mRawSuggestions; + // TODO: Instead of a boolean , we may want to include the context of this suggestion results, + // such as {@link PrevWordsInfo}. + public final boolean mIsBeginningOfSentence; private final int mCapacity; - public SuggestionResults(final Locale locale, final int capacity) { - this(locale, sSuggestedWordInfoComparator, capacity); + public SuggestionResults(final Locale locale, final int capacity, + final boolean isBeginningOfSentence) { + this(locale, sSuggestedWordInfoComparator, capacity, isBeginningOfSentence); } - public SuggestionResults(final Locale locale, final Comparator<SuggestedWordInfo> comparator, - final int capacity) { + private SuggestionResults(final Locale locale, final Comparator<SuggestedWordInfo> comparator, + final int capacity, final boolean isBeginningOfSentence) { super(comparator); mLocale = locale; mCapacity = capacity; @@ -48,6 +52,7 @@ public final class SuggestionResults extends TreeSet<SuggestedWordInfo> { } else { mRawSuggestions = null; } + mIsBeginningOfSentence = isBeginningOfSentence; } @Override diff --git a/java/src/com/android/inputmethod/latin/utils/ViewLayoutUtils.java b/java/src/com/android/inputmethod/latin/utils/ViewLayoutUtils.java index f9d853493..dd122b634 100644 --- a/java/src/com/android/inputmethod/latin/utils/ViewLayoutUtils.java +++ b/java/src/com/android/inputmethod/latin/utils/ViewLayoutUtils.java @@ -19,7 +19,10 @@ package com.android.inputmethod.latin.utils; import android.view.View; import android.view.ViewGroup; import android.view.ViewGroup.MarginLayoutParams; +import android.view.Window; +import android.view.WindowManager; import android.widget.FrameLayout; +import android.widget.LinearLayout; import android.widget.RelativeLayout; public final class ViewLayoutUtils { @@ -51,4 +54,40 @@ public final class ViewLayoutUtils { marginLayoutParams.setMargins(x, y, 0, 0); } } + + public static void updateLayoutHeightOf(final Window window, final int layoutHeight) { + final WindowManager.LayoutParams params = window.getAttributes(); + if (params.height != layoutHeight) { + params.height = layoutHeight; + window.setAttributes(params); + } + } + + public static void updateLayoutHeightOf(final View view, final int layoutHeight) { + final ViewGroup.LayoutParams params = view.getLayoutParams(); + if (params.height != layoutHeight) { + params.height = layoutHeight; + view.setLayoutParams(params); + } + } + + public static void updateLayoutGravityOf(final View view, final int layoutGravity) { + final ViewGroup.LayoutParams lp = view.getLayoutParams(); + if (lp instanceof LinearLayout.LayoutParams) { + final LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)lp; + if (params.gravity != layoutGravity) { + params.gravity = layoutGravity; + view.setLayoutParams(params); + } + } else if (lp instanceof FrameLayout.LayoutParams) { + final FrameLayout.LayoutParams params = (FrameLayout.LayoutParams)lp; + if (params.gravity != layoutGravity) { + params.gravity = layoutGravity; + view.setLayoutParams(params); + } + } else { + throw new IllegalArgumentException("Layout parameter doesn't have gravity: " + + lp.getClass().getName()); + } + } } |