Rename to Kelar Keyboard (org.kelar.inputmethod.latin)

1 files changed, 121 insertions, 0 deletions

diff --git a/java/src/org/kelar/inputmethod/compat/SuggestionSpanUtils.java b/java/src/org/kelar/inputmethod/compat/SuggestionSpanUtils.java
new file mode 100644
index 000000000..080d4754b
--- /dev/null
+++ b/java/src/org/kelar/inputmethod/compat/SuggestionSpanUtils.java
@@ -0,0 +1,121 @@
+/*
+ * 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 org.kelar.inputmethod.compat;
+
+import android.content.Context;
+import android.text.Spannable;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.style.SuggestionSpan;
+
+import org.kelar.inputmethod.annotations.UsedForTesting;
+import org.kelar.inputmethod.latin.SuggestedWords;
+import org.kelar.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
+import org.kelar.inputmethod.latin.common.LocaleUtils;
+import org.kelar.inputmethod.latin.define.DebugFlags;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Locale;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+public final class SuggestionSpanUtils {
+    // Note that SuggestionSpan.FLAG_AUTO_CORRECTION has been introduced
+    // in API level 15 (Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1).
+    private static final Field FIELD_FLAG_AUTO_CORRECTION = CompatUtils.getField(
+            SuggestionSpan.class, "FLAG_AUTO_CORRECTION");
+    private static final Integer OBJ_FLAG_AUTO_CORRECTION = (Integer) CompatUtils.getFieldValue(
+            null /* receiver */, null /* defaultValue */, FIELD_FLAG_AUTO_CORRECTION);
+
+    static {
+        if (DebugFlags.DEBUG_ENABLED) {
+            if (OBJ_FLAG_AUTO_CORRECTION == null) {
+                throw new RuntimeException("Field is accidentially null.");
+            }
+        }
+    }
+
+    private SuggestionSpanUtils() {
+        // This utility class is not publicly instantiable.
+    }
+
+    @UsedForTesting
+    public static CharSequence getTextWithAutoCorrectionIndicatorUnderline(
+            final Context context, final String text, @Nonnull final Locale locale) {
+        if (TextUtils.isEmpty(text) || OBJ_FLAG_AUTO_CORRECTION == null) {
+            return text;
+        }
+        final Spannable spannable = new SpannableString(text);
+        final SuggestionSpan suggestionSpan = new SuggestionSpan(context, locale,
+                new String[] {} /* suggestions */, OBJ_FLAG_AUTO_CORRECTION, null);
+        spannable.setSpan(suggestionSpan, 0, text.length(),
+                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING);
+        return spannable;
+    }
+
+    @UsedForTesting
+    public static CharSequence getTextWithSuggestionSpan(final Context context,
+            final String pickedWord, final SuggestedWords suggestedWords, final Locale locale) {
+        if (TextUtils.isEmpty(pickedWord) || suggestedWords.isEmpty()
+                || suggestedWords.isPrediction() || suggestedWords.isPunctuationSuggestions()) {
+            return pickedWord;
+        }
+
+        final ArrayList<String> suggestionsList = new ArrayList<>();
+        for (int i = 0; i < suggestedWords.size(); ++i) {
+            if (suggestionsList.size() >= SuggestionSpan.SUGGESTIONS_MAX_SIZE) {
+                break;
+            }
+            final SuggestedWordInfo info = suggestedWords.getInfo(i);
+            if (info.isKindOf(SuggestedWordInfo.KIND_PREDICTION)) {
+                continue;
+            }
+            final String word = suggestedWords.getWord(i);
+            if (!TextUtils.equals(pickedWord, word)) {
+                suggestionsList.add(word.toString());
+            }
+        }
+        final SuggestionSpan suggestionSpan = new SuggestionSpan(context, locale,
+                suggestionsList.toArray(new String[suggestionsList.size()]), 0 /* flags */, null);
+        final Spannable spannable = new SpannableString(pickedWord);
+        spannable.setSpan(suggestionSpan, 0, pickedWord.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        return spannable;
+    }
+
+    /**
+     * Returns first {@link Locale} found in the given array of {@link SuggestionSpan}.
+     * @param suggestionSpans the array of {@link SuggestionSpan} to be examined.
+     * @return the first {@link Locale} found in {@code suggestionSpans}. {@code null} when not
+     * found.
+     */
+    @UsedForTesting
+    @Nullable
+    public static Locale findFirstLocaleFromSuggestionSpans(
+            final SuggestionSpan[] suggestionSpans) {
+        for (final SuggestionSpan suggestionSpan : suggestionSpans) {
+            final String localeString = suggestionSpan.getLocale();
+            if (TextUtils.isEmpty(localeString)) {
+                continue;
+            }
+            return LocaleUtils.constructLocaleFromString(localeString);
+        }
+        return null;
+    }
+}