Merge "Add proximity info to native"

1 files changed, 90 insertions, 0 deletions

diff --git a/native/jni/com_android_inputmethod_keyboard_ProximityInfo.cpp b/native/jni/com_android_inputmethod_keyboard_ProximityInfo.cpp
new file mode 100644
index 000000000..3db89edf1
--- /dev/null
+++ b/native/jni/com_android_inputmethod_keyboard_ProximityInfo.cpp
@@ -0,0 +1,90 @@
+/*
+**
+** Copyright 2011, 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.
+*/
+
+#define LOG_TAG "LatinIME: jni: ProximityInfo"
+
+#include "com_android_inputmethod_keyboard_ProximityInfo.h"
+#include "jni.h"
+#include "proximity_info.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+
+// ----------------------------------------------------------------------------
+
+namespace latinime {
+
+//
+// helper function to throw an exception
+//
+static void throwException(JNIEnv *env, const char* ex, const char* fmt, int data) {
+    if (jclass cls = env->FindClass(ex)) {
+        char msg[1000];
+        snprintf(msg, sizeof(msg), fmt, data);
+        env->ThrowNew(cls, msg);
+        env->DeleteLocalRef(cls);
+    }
+}
+
+static jint latinime_Keyboard_setProximityInfo(JNIEnv *env, jobject object,
+        jint maxProximityCharsSize, jint displayWidth, jint displayHeight, jint gridWidth,
+        jint gridHeight, jintArray proximityCharsArray) {
+    jint* proximityChars = env->GetIntArrayElements(proximityCharsArray, NULL);
+    ProximityInfo *proximityInfo = new ProximityInfo(maxProximityCharsSize, displayWidth,
+            displayHeight, gridWidth, gridHeight, (const uint32_t *)proximityChars);
+    env->ReleaseIntArrayElements(proximityCharsArray, proximityChars, 0);
+    return (jint)proximityInfo;
+}
+
+static void latinime_Keyboard_release(JNIEnv *env, jobject object, jint proximityInfo) {
+    ProximityInfo *pi = (ProximityInfo*)proximityInfo;
+    if (!pi) return;
+    delete pi;
+}
+
+// ----------------------------------------------------------------------------
+
+static JNINativeMethod sKeyboardMethods[] = {
+    {"setProximityInfoNative", "(IIIII[I)I", (void*)latinime_Keyboard_setProximityInfo},
+    {"releaseProximityInfoNative", "(I)V", (void*)latinime_Keyboard_release}
+};
+
+static int registerNativeMethods(JNIEnv* env, const char* className, JNINativeMethod* gMethods,
+        int numMethods) {
+    jclass clazz;
+
+    clazz = env->FindClass(className);
+    if (clazz == NULL) {
+        LOGE("Native registration unable to find class '%s'", className);
+        return JNI_FALSE;
+    }
+    if (env->RegisterNatives(clazz, gMethods, numMethods) < 0) {
+        LOGE("RegisterNatives failed for '%s'", className);
+        return JNI_FALSE;
+    }
+
+    return JNI_TRUE;
+}
+
+int register_ProximityInfo(JNIEnv *env) {
+    const char* const kClassPathName = "com/android/inputmethod/keyboard/ProximityInfo";
+    return registerNativeMethods(env, kClassPathName, sKeyboardMethods,
+            sizeof(sKeyboardMethods) / sizeof(sKeyboardMethods[0]));
+}
+
+}; // namespace latinime