Add wrapper for incremental decoder.

Change-Id: Ie11e2b83c2602c0d5a2739a7d4f4994f80d7e298

native/jni/Android.mk

@@ -49,7 +49,8 @@ LATIN_IME_CORE_SRC_FILES := \
     proximity_info.cpp \
     proximity_info_state.cpp \
     unigram_dictionary.cpp \
-    gesture/gesture_decoder_wrapper.cpp
+    gesture/gesture_decoder_wrapper.cpp \
+    gesture/incremental_decoder_wrapper.cpp
 
 LOCAL_SRC_FILES := \
     $(LATIN_IME_JNI_SRC_FILES) \

native/jni/src/gesture/incremental_decoder_wrapper.cpp

+/*
+ * Copyright (C) 2012 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.
+ */
+
+#include "incremental_decoder_wrapper.h"
+
+namespace latinime {
+    IncrementalDecoderInterface *
+            (*IncrementalDecoderWrapper::sIncrementalDecoderFactoryMethod)(int, int) = 0;
+} // namespace latinime

native/jni/src/gesture/incremental_decoder_wrapper.h

+/*
+ * Copyright (C) 2012 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.
+ */
+
+#ifndef LATINIME_INCREMENTAL_DECODER_WRAPPER_H
+#define LATINIME_INCREMENTAL_DECODER_WRAPPER_H
+
+#include <stdint.h>
+#include "defines.h"
+#include "incremental_decoder_interface.h"
+
+namespace latinime {
+
+class UnigramDictionary;
+class BigramDictionary;
+class ProximityInfo;
+
+class IncrementalDecoderWrapper : public IncrementalDecoderInterface {
+ public:
+    IncrementalDecoderWrapper(const int maxWordLength, const int maxWords) {
+        mIncrementalDecoderInterface = getIncrementalDecoderInstance(maxWordLength, maxWords);
+    }
+
+    virtual ~IncrementalDecoderWrapper() {
+        delete mIncrementalDecoderInterface;
+    }
+
+    int getSuggestions(ProximityInfo *pInfo, int *inputXs, int *inputYs, int *times,
+            int *pointerIds, int *codes, int inputSize, int commitPoint,
+            unsigned short *outWords, int *frequencies, int *outputIndices, int *outputTypes) {
+        if (!mIncrementalDecoderInterface) {
+            return 0;
+        }
+        return mIncrementalDecoderInterface->getSuggestions(
+                pInfo, inputXs, inputYs, times, pointerIds, codes, inputSize, commitPoint,
+                outWords, frequencies, outputIndices, outputTypes);
+    }
+
+    void reset() {
+        if (!mIncrementalDecoderInterface) {
+            return;
+        }
+        mIncrementalDecoderInterface->reset();
+    }
+
+    void setDict(const UnigramDictionary *dict, const BigramDictionary *bigram,
+            const uint8_t *dictRoot, int rootPos) {
+        if (!mIncrementalDecoderInterface) {
+            return;
+        }
+        mIncrementalDecoderInterface->setDict(dict, bigram, dictRoot, rootPos);
+    }
+
+    void setPrevWord(const int32_t *prevWord, int prevWordLength) {
+        if (!mIncrementalDecoderInterface) {
+            return;
+        }
+        mIncrementalDecoderInterface->setPrevWord(prevWord, prevWordLength);
+    }
+
+    static void setIncrementalDecoderFactoryMethod(
+            IncrementalDecoderInterface *(*factoryMethod)(int, int)) {
+        sIncrementalDecoderFactoryMethod = factoryMethod;
+    }
+
+ private:
+    DISALLOW_COPY_AND_ASSIGN(IncrementalDecoderWrapper);
+    static IncrementalDecoderInterface *getIncrementalDecoderInstance(int maxWordLength,
+            int maxWords) {
+        if (sIncrementalDecoderFactoryMethod) {
+            return sIncrementalDecoderFactoryMethod(maxWordLength, maxWords);
+        }
+        return 0;
+    }
+
+    static IncrementalDecoderInterface *(*sIncrementalDecoderFactoryMethod)(int, int);
+    IncrementalDecoderInterface *mIncrementalDecoderInterface;
+};
+} // namespace latinime
+#endif // LATINIME_INCREMENTAL_DECODER_WRAPPER_H