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Use reflection to get field values of SuggestionSpan 

Bug: 5440299
Change-Id: I5e40edf6f790c078c4a05d0d347a89d63f7c042a
main
satok 2011-10-28 19:02:59 +09:00
parent 07a445572f
commit 68ef7b77ed
1 changed files with 23 additions and 7 deletions
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30
java/src/com/android/inputmethod/compat/SuggestionSpanUtils.java
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@ -16,6 +16,7 @@
package com.android.inputmethod.compat;
import com.android.inputmethod.latin.LatinImeLogger;
import com.android.inputmethod.latin.SuggestedWords;
import com.android.inputmethod.latin.SuggestionSpanPickedNotificationReceiver;
@ -27,6 +28,7 @@ import android.text.TextUtils;
import android.util.Log;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Locale;
@ -38,9 +40,6 @@ public class SuggestionSpanUtils {
public static final String SUGGESTION_SPAN_PICKED_AFTER = "after";
public static final String SUGGESTION_SPAN_PICKED_BEFORE = "before";
public static final String SUGGESTION_SPAN_PICKED_HASHCODE = "hashcode";
// TODO: Use the API constant after it gets public.
public static final int FLAG_AUTO_CORRECTION = 0x0004;
public static final int SUGGESTION_MAX_SIZE = 5;
public static final boolean SUGGESTION_SPAN_IS_SUPPORTED;
private static final Class<?> CLASS_SuggestionSpan = CompatUtils
@ -49,20 +48,36 @@ public class SuggestionSpanUtils {
Context.class, Locale.class, String[].class, int.class, Class.class };
private static final Constructor<?> CONSTRUCTOR_SuggestionSpan = CompatUtils
.getConstructor(CLASS_SuggestionSpan, INPUT_TYPE_SuggestionSpan);
public static final Field FIELD_FLAG_AUTO_CORRECTION
= CompatUtils.getField(CLASS_SuggestionSpan, "FLAG_AUTO_CORRECTION");
public static final Field FIELD_SUGGESTION_MAX_SIZE
= CompatUtils.getField(CLASS_SuggestionSpan, "SUGGESTION_MAX_SIZE");
public static final Integer OBJ_FLAG_AUTO_CORRECTION = (Integer) CompatUtils
.getFieldValue(null, null, FIELD_FLAG_AUTO_CORRECTION);;
public static final Integer OBJ_SUGGESTION_MAX_SIZE = (Integer) CompatUtils
.getFieldValue(null, null, FIELD_SUGGESTION_MAX_SIZE);;
static {
SUGGESTION_SPAN_IS_SUPPORTED =
CLASS_SuggestionSpan != null && CONSTRUCTOR_SuggestionSpan != null;
if (LatinImeLogger.sDBG) {
if (SUGGESTION_SPAN_IS_SUPPORTED
&& (OBJ_FLAG_AUTO_CORRECTION == null || OBJ_SUGGESTION_MAX_SIZE == null)) {
Log.e(TAG, "Field is accidentially null.");
}
}
}
public static CharSequence getTextWithAutoCorrectionIndicatorUnderline(
Context context, CharSequence text) {
if (TextUtils.isEmpty(text) || CONSTRUCTOR_SuggestionSpan == null) {
if (TextUtils.isEmpty(text) || CONSTRUCTOR_SuggestionSpan == null
|| OBJ_FLAG_AUTO_CORRECTION == null) {
return text;
}
final Spannable spannable = text instanceof Spannable
? (Spannable) text : new SpannableString(text);
final Object[] args =
{ context, null, new String[] {}, FLAG_AUTO_CORRECTION,
{ context, null, new String[] {}, (int)OBJ_FLAG_AUTO_CORRECTION,
(Class<?>) SuggestionSpanPickedNotificationReceiver.class };
final Object ss = CompatUtils.newInstance(CONSTRUCTOR_SuggestionSpan, args);
if (ss == null) {
@ -78,7 +93,8 @@ public class SuggestionSpanUtils {
CharSequence pickedWord, SuggestedWords suggestedWords) {
if (TextUtils.isEmpty(pickedWord) || CONSTRUCTOR_SuggestionSpan == null
|| suggestedWords == null || suggestedWords.size() == 0
|| suggestedWords.getInfo(0).isObsoleteSuggestedWord()) {
|| suggestedWords.getInfo(0).isObsoleteSuggestedWord()
|| OBJ_SUGGESTION_MAX_SIZE == null) {
return pickedWord;
}
@ -90,7 +106,7 @@ public class SuggestionSpanUtils {
}
final ArrayList<String> suggestionsList = new ArrayList<String>();
for (int i = 0; i < suggestedWords.size(); ++i) {
if (suggestionsList.size() >= SUGGESTION_MAX_SIZE) {
if (suggestionsList.size() >= OBJ_SUGGESTION_MAX_SIZE) {
break;
}
final CharSequence word = suggestedWords.getWord(i);