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Commit 03c1e795 authored by Yohei Yukawa's avatar Yohei Yukawa
Browse files

Add a utility method to SuggestionSpanUtils 

This is a ground work for subsequent CLs.

BUG: 16995261
Change-Id: Icbb708a35412a635a0d625b520069840c0bb0904
parent a48ff4e2

java/src/com/android/inputmethod/compat/SuggestionSpanUtils.java

+28 −0
Original line number Diff line number Diff line
@@ -28,9 +28,13 @@ import com.android.inputmethod.latin.SuggestedWords; 
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;

import com.android.inputmethod.latin.SuggestionSpanPickedNotificationReceiver;

import com.android.inputmethod.latin.define.DebugFlags;

import com.android.inputmethod.latin.utils.LocaleUtils;



import java.lang.reflect.Field;

import java.util.ArrayList;

import java.util.Locale;



import javax.annotation.Nullable;



public final class SuggestionSpanUtils {

    // Note that SuggestionSpan.FLAG_AUTO_CORRECTION has been introduced
@@ -98,4 +102,28 @@ public final class SuggestionSpanUtils { 
        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;

            }

            final Locale locale = LocaleUtils.constructLocaleFromString(localeString);

            if (locale == null) {

                continue;

            }

            return locale;

        }

        return null;

    }

}

tests/src/com/android/inputmethod/compat/SuggestionSpanUtilsTest.java

+26 −0
Original line number Diff line number Diff line
@@ -178,4 +178,30 @@ public class SuggestionSpanUtilsTest extends AndroidTestCase { 
                            typedAndCollectedWords));

        }

    }



    public void testFindFirstLocaleFromSuggestionSpans() {

        final String[] suggestions = new String[] {"Quality", "Speed", "Price"};

        final SuggestionSpan nullLocaleSpan = new SuggestionSpan((Locale)null, suggestions, 0);

        final SuggestionSpan emptyLocaleSpan = new SuggestionSpan(new Locale(""), suggestions, 0);

        final SuggestionSpan enUsLocaleSpan = new SuggestionSpan(Locale.US, suggestions, 0);

        final SuggestionSpan jaJpLocaleSpan = new SuggestionSpan(Locale.JAPAN, suggestions, 0);



        assertEquals(null, SuggestionSpanUtils.findFirstLocaleFromSuggestionSpans(

                new SuggestionSpan[] {}));



        assertEquals(null, SuggestionSpanUtils.findFirstLocaleFromSuggestionSpans(

                new SuggestionSpan[] {emptyLocaleSpan}));



        assertEquals(Locale.US, SuggestionSpanUtils.findFirstLocaleFromSuggestionSpans(

                new SuggestionSpan[] {enUsLocaleSpan}));



        assertEquals(Locale.US, SuggestionSpanUtils.findFirstLocaleFromSuggestionSpans(

                new SuggestionSpan[] {nullLocaleSpan, enUsLocaleSpan}));



        assertEquals(Locale.US, SuggestionSpanUtils.findFirstLocaleFromSuggestionSpans(

                new SuggestionSpan[] {nullLocaleSpan, emptyLocaleSpan, enUsLocaleSpan}));



        assertEquals(Locale.JAPAN, SuggestionSpanUtils.findFirstLocaleFromSuggestionSpans(

                new SuggestionSpan[] {nullLocaleSpan, jaJpLocaleSpan, enUsLocaleSpan}));

    }

}