Add spellcheck and word suggestion to the prediction service

third_party/prediction/suggest/core/suggest_options.h

+/*
+ * Copyright (C) 2013 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_SUGGEST_OPTIONS_H
+#define LATINIME_SUGGEST_OPTIONS_H
+
+#include "third_party/prediction/defines.h"
+
+namespace latinime {
+
+class SuggestOptions {
+ public:
+  SuggestOptions(const int* const options, const int length)
+      : mOptions(options), mLength(length) {}
+
+  AK_FORCE_INLINE bool isGesture() const { return getBoolOption(IS_GESTURE); }
+
+  AK_FORCE_INLINE bool useFullEditDistance() const {
+    return getBoolOption(USE_FULL_EDIT_DISTANCE);
+  }
+
+  AK_FORCE_INLINE bool blockOffensiveWords() const {
+    return getBoolOption(BLOCK_OFFENSIVE_WORDS);
+  }
+
+  AK_FORCE_INLINE bool enableSpaceAwareGesture() const {
+    return getBoolOption(SPACE_AWARE_GESTURE_ENABLED);
+  }
+
+  AK_FORCE_INLINE bool getAdditionalFeaturesBoolOption(const int key) const {
+    return getBoolOption(key + ADDITIONAL_FEATURES_OPTIONS);
+  }
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(SuggestOptions);
+
+  // Need to update com.android.inputmethod.latin.NativeSuggestOptions when you
+  // add, remove or
+  // reorder options.
+  static const int IS_GESTURE = 0;
+  static const int USE_FULL_EDIT_DISTANCE = 1;
+  static const int BLOCK_OFFENSIVE_WORDS = 2;
+  static const int SPACE_AWARE_GESTURE_ENABLED = 3;
+  // Additional features options are stored after the other options and used as
+  // setting values of
+  // experimental features.
+  static const int ADDITIONAL_FEATURES_OPTIONS = 4;
+
+  const int* const mOptions;
+  const int mLength;
+
+  AK_FORCE_INLINE bool isValidKey(const int key) const {
+    return 0 <= key && key < mLength;
+  }
+
+  AK_FORCE_INLINE bool getBoolOption(const int key) const {
+    if (isValidKey(key)) {
+      return mOptions[key] != 0;
+    }
+    return false;
+  }
+
+  AK_FORCE_INLINE int getIntOption(const int key) const {
+    if (isValidKey(key)) {
+      return mOptions[key];
+    }
+    return 0;
+  }
+};
+}  // namespace latinime
+#endif  // LATINIME_SUGGEST_OPTIONS_H