Merge "Add a time stamp for unigrams."
diff --git a/java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java b/java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java
index 9779c68..f123735 100644
--- a/java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java
+++ b/java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java
@@ -162,9 +162,11 @@
                 addShownCategoryId(CATEGORY_ID_OBJECTS);
                 addShownCategoryId(CATEGORY_ID_NATURE);
                 addShownCategoryId(CATEGORY_ID_PLACES);
-                mCurrentCategoryId = CATEGORY_ID_PEOPLE;
+                mCurrentCategoryId =
+                        Settings.readLastShownEmojiCategoryId(mPrefs, CATEGORY_ID_PEOPLE);
             } else {
-                mCurrentCategoryId = CATEGORY_ID_SYMBOLS;
+                mCurrentCategoryId =
+                        Settings.readLastShownEmojiCategoryId(mPrefs, CATEGORY_ID_SYMBOLS);
             }
             addShownCategoryId(CATEGORY_ID_SYMBOLS);
             addShownCategoryId(CATEGORY_ID_EMOTICONS);
@@ -222,6 +224,7 @@
 
         public void setCurrentCategoryId(int categoryId) {
             mCurrentCategoryId = categoryId;
+            Settings.writeLastShownEmojiCategoryId(mPrefs, categoryId);
         }
 
         public void setCurrentCategoryPageId(int id) {
@@ -233,7 +236,7 @@
         }
 
         public void saveLastTypedCategoryPage() {
-            Settings.writeEmojiCategoryLastTypedId(
+            Settings.writeLastTypedEmojiCategoryPageId(
                     mPrefs, mCurrentCategoryId, mCurrentCategoryPageId);
         }
 
@@ -254,7 +257,7 @@
         // Returns the view pager's page position for the categoryId
         public int getPageIdFromCategoryId(int categoryId) {
             final int lastSavedCategoryPageId =
-                    Settings.readEmojiCategoryLastTypedId(mPrefs, categoryId);
+                    Settings.readLastTypedEmojiCategoryPageId(mPrefs, categoryId);
             int sum = 0;
             for (int i = 0; i < mShownCategories.size(); ++i) {
                 final CategoryProperties props = mShownCategories.get(i);
diff --git a/java/src/com/android/inputmethod/latin/makedict/DynamicBinaryDictIOUtils.java b/java/src/com/android/inputmethod/latin/makedict/DynamicBinaryDictIOUtils.java
index 3362771..28da9ff 100644
--- a/java/src/com/android/inputmethod/latin/makedict/DynamicBinaryDictIOUtils.java
+++ b/java/src/com/android/inputmethod/latin/makedict/DynamicBinaryDictIOUtils.java
@@ -22,6 +22,7 @@
 import com.android.inputmethod.latin.makedict.FormatSpec.FileHeader;
 import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
 import com.android.inputmethod.latin.makedict.FusionDictionary.WeightedString;
+import com.android.inputmethod.latin.utils.CollectionUtils;
 
 import java.io.IOException;
 import java.io.OutputStream;
@@ -217,6 +218,25 @@
     }
 
     /**
+     * Converts a list of WeightedString to a list of PendingAttribute.
+     */
+    public static ArrayList<PendingAttribute> resolveBigramPositions(final DictUpdater dictUpdater,
+            final ArrayList<WeightedString> bigramStrings)
+                    throws IOException, UnsupportedFormatException {
+        if (bigramStrings == null) return CollectionUtils.newArrayList();
+        final ArrayList<PendingAttribute> bigrams = CollectionUtils.newArrayList();
+        for (final WeightedString bigram : bigramStrings) {
+            final int pos = dictUpdater.getTerminalPosition(bigram.mWord);
+            if (pos == FormatSpec.NOT_VALID_WORD) {
+                // TODO: figure out what is the correct thing to do here.
+            } else {
+                bigrams.add(new PendingAttribute(bigram.mFrequency, pos));
+            }
+        }
+        return bigrams;
+    }
+
+    /**
      * Insert a word into a binary dictionary.
      *
      * @param dictUpdater the dict updater.
@@ -238,18 +258,9 @@
             final ArrayList<WeightedString> shortcuts, final boolean isNotAWord,
             final boolean isBlackListEntry)
                     throws IOException, UnsupportedFormatException {
-        final ArrayList<PendingAttribute> bigrams = new ArrayList<PendingAttribute>();
+        final ArrayList<PendingAttribute> bigrams = resolveBigramPositions(dictUpdater,
+                bigramStrings);
         final DictBuffer dictBuffer = dictUpdater.getDictBuffer();
-        if (bigramStrings != null) {
-            for (final WeightedString bigram : bigramStrings) {
-                int position = dictUpdater.getTerminalPosition(bigram.mWord);
-                if (position == FormatSpec.NOT_VALID_WORD) {
-                    // TODO: figure out what is the correct thing to do here.
-                } else {
-                    bigrams.add(new PendingAttribute(bigram.mFrequency, position));
-                }
-            }
-        }
 
         final boolean isTerminal = true;
         final boolean hasBigrams = !bigrams.isEmpty();
diff --git a/java/src/com/android/inputmethod/latin/settings/Settings.java b/java/src/com/android/inputmethod/latin/settings/Settings.java
index 1a0fecc..dc005bb 100644
--- a/java/src/com/android/inputmethod/latin/settings/Settings.java
+++ b/java/src/com/android/inputmethod/latin/settings/Settings.java
@@ -101,6 +101,7 @@
     // Emoji
     public static final String PREF_EMOJI_RECENT_KEYS = "emoji_recent_keys";
     public static final String PREF_EMOJI_CATEGORY_LAST_TYPED_ID = "emoji_category_last_typed_id";
+    public static final String PREF_LAST_SHOWN_EMOJI_CATEGORY_ID = "last_shown_emoji_category_id";
 
     private Resources mRes;
     private SharedPreferences mPrefs;
@@ -383,15 +384,25 @@
         return prefs.getString(PREF_EMOJI_RECENT_KEYS, "");
     }
 
-    public static void writeEmojiCategoryLastTypedId(
-            final SharedPreferences prefs, final int category, final int id) {
-        final String key = PREF_EMOJI_CATEGORY_LAST_TYPED_ID + category;
-        prefs.edit().putInt(key, id).apply();
+    public static void writeLastTypedEmojiCategoryPageId(
+            final SharedPreferences prefs, final int categoryId, final int categoryPageId) {
+        final String key = PREF_EMOJI_CATEGORY_LAST_TYPED_ID + categoryId;
+        prefs.edit().putInt(key, categoryPageId).apply();
     }
 
-    public static int readEmojiCategoryLastTypedId(
-            final SharedPreferences prefs, final int category) {
-        final String key = PREF_EMOJI_CATEGORY_LAST_TYPED_ID + category;
+    public static int readLastTypedEmojiCategoryPageId(
+            final SharedPreferences prefs, final int categoryId) {
+        final String key = PREF_EMOJI_CATEGORY_LAST_TYPED_ID + categoryId;
         return prefs.getInt(key, 0);
     }
+
+    public static void writeLastShownEmojiCategoryId(
+            final SharedPreferences prefs, final int categoryId) {
+        prefs.edit().putInt(PREF_LAST_SHOWN_EMOJI_CATEGORY_ID, categoryId).apply();
+    }
+
+    public static int readLastShownEmojiCategoryId(
+            final SharedPreferences prefs, final int defValue) {
+        return prefs.getInt(PREF_LAST_SHOWN_EMOJI_CATEGORY_ID, defValue);
+    }
 }
diff --git a/java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java b/java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java
index 8d2689a..faa5560 100644
--- a/java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java
+++ b/java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java
@@ -302,18 +302,19 @@
         final int countInStrip = mSuggestionsCountInStrip;
         setupWordViewsTextAndColor(suggestedWords, countInStrip);
         final TextView centerWordView = mWordViews.get(mCenterPositionInStrip);
-        final int stripWidth = placerView.getWidth();
-        final int centerWidth = getSuggestionWidth(mCenterPositionInStrip, stripWidth);
+        final int availableStripWidth = placerView.getWidth()
+                - placerView.getPaddingRight() - placerView.getPaddingLeft();
+        final int centerWidth = getSuggestionWidth(mCenterPositionInStrip, availableStripWidth);
         if (getTextScaleX(centerWordView.getText(), centerWidth, centerWordView.getPaint())
                 < MIN_TEXT_XSCALE) {
             // Layout only the most relevant suggested word at the center of the suggestion strip
             // by consolidating all slots in the strip.
             mMoreSuggestionsAvailable = (suggestedWords.size() > 1);
-            layoutWord(mCenterPositionInStrip, stripWidth);
+            layoutWord(mCenterPositionInStrip, availableStripWidth - mPadding);
             stripView.addView(centerWordView);
             setLayoutWeight(centerWordView, 1.0f, ViewGroup.LayoutParams.MATCH_PARENT);
             if (SuggestionStripView.DBG) {
-                layoutDebugInfo(mCenterPositionInStrip, placerView, stripWidth);
+                layoutDebugInfo(mCenterPositionInStrip, placerView, availableStripWidth);
             }
             return;
         }
@@ -328,7 +329,7 @@
                 x += divider.getMeasuredWidth();
             }
 
-            final int width = getSuggestionWidth(positionInStrip, stripWidth);
+            final int width = getSuggestionWidth(positionInStrip, availableStripWidth);
             final TextView wordView = layoutWord(positionInStrip, width);
             stripView.addView(wordView);
             setLayoutWeight(wordView, getSuggestionWeight(positionInStrip),
@@ -373,9 +374,9 @@
         // Disable this suggestion if the suggestion is null or empty.
         wordView.setEnabled(!TextUtils.isEmpty(word));
         final CharSequence text = getEllipsizedText(word, width, wordView.getPaint());
-        final float scaleX = wordView.getTextScaleX();
+        final float scaleX = getTextScaleX(word, width, wordView.getPaint());
         wordView.setText(text); // TextView.setText() resets text scale x to 1.0.
-        wordView.setTextScaleX(scaleX);
+        wordView.setTextScaleX(Math.max(scaleX, MIN_TEXT_XSCALE));
         return wordView;
     }
 
@@ -545,8 +546,24 @@
 
         // Note that TextUtils.ellipsize() use text-x-scale as 1.0 if ellipsize is needed. To
         // get squeezed and ellipsized text, passes enlarged width (maxWidth / MIN_TEXT_XSCALE).
-        final CharSequence ellipsized = TextUtils.ellipsize(
-                text, paint, maxWidth / MIN_TEXT_XSCALE, TextUtils.TruncateAt.MIDDLE);
+        final float upscaledWidth = maxWidth / MIN_TEXT_XSCALE;
+        CharSequence ellipsized = TextUtils.ellipsize(
+                text, paint, upscaledWidth, TextUtils.TruncateAt.MIDDLE);
+        // For an unknown reason, ellipsized seems to return a text that does indeed fit inside the
+        // passed width according to paint.measureText, but not according to paint.getTextWidths.
+        // But when rendered, the text seems to actually take up as many pixels as returned by
+        // paint.getTextWidths, hence problem.
+        // To save this case, we compare the measured size of the new text, and if it's too much,
+        // try it again removing the difference. This may still give a text too long by one or
+        // two pixels so we take an additional 2 pixels cushion and call it a day.
+        // TODO: figure out why getTextWidths and measureText don't agree with each other, and
+        // remove the following code.
+        final float ellipsizedTextWidth = getTextWidth(ellipsized, paint);
+        if (upscaledWidth <= ellipsizedTextWidth) {
+            ellipsized = TextUtils.ellipsize(
+                    text, paint, upscaledWidth - (ellipsizedTextWidth - upscaledWidth) - 2,
+                    TextUtils.TruncateAt.MIDDLE);
+        }
         paint.setTextScaleX(MIN_TEXT_XSCALE);
         return ellipsized;
     }
diff --git a/tests/src/com/android/inputmethod/latin/InputLogicTests.java b/tests/src/com/android/inputmethod/latin/InputLogicTests.java
index 6bc8b9d..8ad8689 100644
--- a/tests/src/com/android/inputmethod/latin/InputLogicTests.java
+++ b/tests/src/com/android/inputmethod/latin/InputLogicTests.java
@@ -183,7 +183,7 @@
         final String[] STRINGS_TO_TYPE =
                 new String[] { "this   ", "a+  ", "\u1F607  ", "..  ", ")  ", "(  ", "%  " };
         final String[] EXPECTED_RESULTS =
-                new String[] { "this.  ", "a+. ", "\u1F607. ", "..  ", "). ", "(  ", "%  " };
+                new String[] { "this.  ", "a+. ", "\u1F607. ", "..  ", "). ", "(  ", "%. " };
         for (int i = 0; i < STRINGS_TO_TYPE.length; ++i) {
             mEditText.setText("");
             type(STRINGS_TO_TYPE[i]);