Moved a functionality of setting touchableRegion to InputMethodServiceCompatWrapper.

Change-Id: I8b9fe507885ef5ae7cb09db93a977e23b1bbd0db

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

@@ -20,6 +20,7 @@ import android.content.Intent;
 import android.text.TextUtils;
 import android.util.Log;
 
+import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
@@ -77,6 +78,18 @@ public class CompatUtils {
         }
     }
 
+    public static Field getField(Class<?> targetClass, String name) {
+        try {
+            return targetClass.getField(name);
+        } catch (SecurityException e) {
+            // ignore
+            return null;
+        } catch (NoSuchFieldException e) {
+            // ignore
+            return null;
+        }
+    }
+
     public static Object invoke(
             Object receiver, Object defaultValue, Method method, Object... args) {
         if (receiver == null || method == null) return defaultValue;
@@ -94,6 +107,28 @@ public class CompatUtils {
         }
     }
 
+    public static Object getFieldValue(Object receiver, Object defaultValue, Field field) {
+        if (receiver == null || field == null) return defaultValue;
+        try {
+            return field.get(receiver);
+        } catch (IllegalArgumentException e) {
+            return defaultValue;
+        } catch (IllegalAccessException e) {
+            return defaultValue;
+        }
+    }
+
+    public static void setFieldValue(Object receiver, Field field, Object value) {
+        if (receiver == null || field == null) return;
+        try {
+            field.set(receiver, value);
+        } catch (IllegalArgumentException e) {
+            // ignore
+        } catch (IllegalAccessException e) {
+            // ignore
+        }
+    }
+
     public static List<InputMethodSubtypeCompatWrapper> copyInputMethodSubtypeListToWrapper(
             Object listObject) {
         if (!(listObject instanceof List<?>)) return null;

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

@@ -62,4 +62,10 @@ public class InputMethodServiceCompatWrapper extends InputMethodService {
         SubtypeSwitcher.getInstance().updateSubtype(
                 new InputMethodSubtypeCompatWrapper(subtype));
     }
+
+    protected static void setTouchableRegionCompat(InputMethodService.Insets outInsets,
+            int x, int y, int width, int height) {
+        outInsets.touchableInsets = InputMethodService.Insets.TOUCHABLE_INSETS_REGION;
+        outInsets.touchableRegion.set(x, y, width, height);
+    }
 }

java/src/com/android/inputmethod/latin/LatinIME.java

@@ -914,8 +914,7 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
             if (DEBUG) {
                 Log.d(TAG, "Touchable region " + x + ", " + y + ", " + width + ", " + height);
             }
-            outInsets.touchableInsets = InputMethodService.Insets.TOUCHABLE_INSETS_REGION;
+            setTouchableRegionCompat(outInsets, x, y, width, height);
-            outInsets.touchableRegion.set(x, y, width, height);
         }
     }