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Add explicit NULL check to latinime_Keyboard_setProximityInfo() and ProximityInfo::ProximityInfo(). 

Bug: 5375319
Change-Id: If3016ab56b6c62c8855b394f23e09e127a279be7
main
Yusuke Nojima 2011-09-27 11:15:18 +09:00
parent c9f562a9a4
commit de2f8424ea
3 changed files with 45 additions and 26 deletions
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30
native/jni/com_android_inputmethod_keyboard_ProximityInfo.cpp
View File

@ -33,21 +33,21 @@ static jint latinime_Keyboard_setProximityInfo(JNIEnv *env, jobject object,
jint gridHeight, jintArray proximityCharsArray, jint keyCount,
jintArray keyXCoordinateArray, jintArray keyYCoordinateArray, jintArray keyWidthArray,
jintArray keyHeightArray, jintArray keyCharCodeArray) {
jint* proximityChars = env->GetIntArrayElements(proximityCharsArray, NULL);
jint* keyXCoordinates = env->GetIntArrayElements(keyXCoordinateArray, NULL);
jint* keyYCoordinates = env->GetIntArrayElements(keyYCoordinateArray, NULL);
jint* keyWidths = env->GetIntArrayElements(keyWidthArray, NULL);
jint* keyHeights = env->GetIntArrayElements(keyHeightArray, NULL);
jint* keyCharCodes = env->GetIntArrayElements(keyCharCodeArray, NULL);
jint *proximityChars = env->GetIntArrayElements(proximityCharsArray, NULL);
jint *keyXCoordinates = safeGetIntArrayElements(env, keyXCoordinateArray);
jint *keyYCoordinates = safeGetIntArrayElements(env, keyYCoordinateArray);
jint *keyWidths = safeGetIntArrayElements(env, keyWidthArray);
jint *keyHeights = safeGetIntArrayElements(env, keyHeightArray);
jint *keyCharCodes = safeGetIntArrayElements(env, keyCharCodeArray);
ProximityInfo *proximityInfo = new ProximityInfo(maxProximityCharsSize, displayWidth,
displayHeight, gridWidth, gridHeight, (const uint32_t *)proximityChars,
keyCount, (const int32_t *)keyXCoordinates, (const int32_t *)keyYCoordinates,
(const int32_t *)keyWidths, (const int32_t *)keyHeights, (const int32_t *)keyCharCodes);
env->ReleaseIntArrayElements(keyCharCodeArray, keyCharCodes, 0);
env->ReleaseIntArrayElements(keyHeightArray, keyHeights, 0);
env->ReleaseIntArrayElements(keyWidthArray, keyWidths, 0);
env->ReleaseIntArrayElements(keyYCoordinateArray, keyYCoordinates, 0);
env->ReleaseIntArrayElements(keyXCoordinateArray, keyXCoordinates, 0);
displayHeight, gridWidth, gridHeight, (const uint32_t*)proximityChars,
keyCount, (const int32_t*)keyXCoordinates, (const int32_t*)keyYCoordinates,
(const int32_t*)keyWidths, (const int32_t*)keyHeights, (const int32_t*)keyCharCodes);
safeReleaseIntArrayElements(env, keyCharCodeArray, keyCharCodes);
safeReleaseIntArrayElements(env, keyHeightArray, keyHeights);
safeReleaseIntArrayElements(env, keyWidthArray, keyWidths);
safeReleaseIntArrayElements(env, keyYCoordinateArray, keyYCoordinates);
safeReleaseIntArrayElements(env, keyXCoordinateArray, keyXCoordinates);
env->ReleaseIntArrayElements(proximityCharsArray, proximityChars, 0);
return (jint)proximityInfo;
}
@ -64,7 +64,7 @@ static JNINativeMethod sKeyboardMethods[] = {
};
int register_ProximityInfo(JNIEnv *env) {
const char* const kClassPathName = "com/android/inputmethod/keyboard/ProximityInfo";
const char *const kClassPathName = "com/android/inputmethod/keyboard/ProximityInfo";
return registerNativeMethods(env, kClassPathName, sKeyboardMethods,
sizeof(sKeyboardMethods) / sizeof(sKeyboardMethods[0]));
}

18
native/jni/jni_common.h
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@ -18,13 +18,29 @@
#ifndef LATINIME_JNI_COMMON_H
#define LATINIME_JNI_COMMON_H
#include <stdlib.h>
#include "jni.h"
namespace latinime {
int registerNativeMethods(JNIEnv* env, const char* className, JNINativeMethod* methods,
int registerNativeMethods(JNIEnv *env, const char *className, JNINativeMethod *methods,
int numMethods);
inline jint *safeGetIntArrayElements(JNIEnv *env, jintArray jArray) {
if (jArray) {
return env->GetIntArrayElements(jArray, NULL);
} else {
return NULL;
}
}
inline void safeReleaseIntArrayElements(JNIEnv *env, jintArray jArray, jint *cArray) {
if (jArray) {
env->ReleaseIntArrayElements(jArray, cArray, 0);
}
}
} // namespace latinime
#endif // LATINIME_JNI_COMMON_H

23
native/src/proximity_info.cpp
View File

@ -26,6 +26,14 @@
namespace latinime {
inline void copyOrFillZero(void *to, const void *from, size_t size) {
if (from) {
memcpy(to, from, size);
} else {
memset(to, 0, size);
}
}
ProximityInfo::ProximityInfo(const int maxProximityCharsSize, const int keyboardWidth,
const int keyboardHeight, const int gridWidth, const int gridHeight,
const uint32_t *proximityCharsArray, const int keyCount, const int32_t *keyXCoordinates,
@ -43,16 +51,11 @@ ProximityInfo::ProximityInfo(const int maxProximityCharsSize, const int keyboard
}
memcpy(mProximityCharsArray, proximityCharsArray, len * sizeof(mProximityCharsArray[0]));
if (KEY_COUNT > 0) {
if (DEBUG_PROXIMITY_INFO) {
LOGI("Create key coordinate array %d", keyCount);
}
memcpy(mKeyXCoordinates, keyXCoordinates, KEY_COUNT * sizeof(mKeyXCoordinates[0]));
memcpy(mKeyYCoordinates, keyYCoordinates, KEY_COUNT * sizeof(mKeyYCoordinates[0]));
memcpy(mKeyWidths, keyWidths, KEY_COUNT * sizeof(mKeyWidths[0]));
memcpy(mKeyHeights, keyHeights, KEY_COUNT * sizeof(mKeyHeights[0]));
memcpy(mKeyCharCodes, keyCharCodes, KEY_COUNT * sizeof(mKeyCharCodes[0]));
}
copyOrFillZero(mKeyXCoordinates, keyXCoordinates, KEY_COUNT * sizeof(mKeyXCoordinates[0]));
copyOrFillZero(mKeyYCoordinates, keyYCoordinates, KEY_COUNT * sizeof(mKeyYCoordinates[0]));
copyOrFillZero(mKeyWidths, keyWidths, KEY_COUNT * sizeof(mKeyWidths[0]));
copyOrFillZero(mKeyHeights, keyHeights, KEY_COUNT * sizeof(mKeyHeights[0]));
copyOrFillZero(mKeyCharCodes, keyCharCodes, KEY_COUNT * sizeof(mKeyCharCodes[0]));
initializeCodeToGroup();
initializeCodeToKeyIndex();