mirror of
https://github.com/openharmony/js_util_module.git
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Bi
3945b421ed
Signed-off-by: xllify <lixinlong18@huawei.com> Author: xllify <lixinlong18@huawei.com> Date: Fri Mar 11 16:35:49 2022 +0800
100 lines
3.5 KiB
C++
Executable File
100 lines
3.5 KiB
C++
Executable File
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "js_textencoder.h"
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#include <string>
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#include "native_engine.h"
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#include "securec.h"
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#include "utils/log.h"
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namespace OHOS::Util {
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TextEncoder::TextEncoder(napi_env env) : env_(env), encoding_("utf-8")
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{
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}
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napi_value TextEncoder::GetEncoding() const
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{
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napi_value result = nullptr;
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NAPI_CALL(env_, napi_create_string_utf8(env_, encoding_.c_str(), encoding_.length(), &result));
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return result;
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}
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napi_value TextEncoder::Encode(napi_value src) const
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{
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char *buffer = nullptr;
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size_t bufferSize = 0;
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NAPI_CALL(env_, napi_get_value_string_utf8(env_, src, buffer, 0, &bufferSize));
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NAPI_ASSERT(env_, bufferSize > 0, "bufferSize == 0");
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buffer = new char[bufferSize + 1];
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if (memset_s(buffer, bufferSize + 1, 0, bufferSize + 1) != EOK) {
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HILOG_ERROR("buffer memset error");
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delete []buffer;
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return nullptr;
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}
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napi_get_value_string_utf8(env_, src, buffer, bufferSize + 1, &bufferSize);
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void *data = nullptr;
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napi_value arrayBuffer = nullptr;
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napi_create_arraybuffer(env_, bufferSize, &data, &arrayBuffer);
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if (memcpy_s(data, bufferSize, reinterpret_cast<void*>(buffer), bufferSize) != EOK) {
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HILOG_ERROR("copy buffer to arraybuffer error");
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delete []buffer;
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return nullptr;
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}
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delete []buffer;
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buffer = nullptr;
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napi_value result = nullptr;
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NAPI_CALL(env_, napi_create_typedarray(env_, napi_uint8_array, bufferSize, arrayBuffer, 0, &result));
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return result;
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}
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napi_value TextEncoder::EncodeInto(napi_value src, napi_value dest) const
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{
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napi_typedarray_type type;
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size_t byteOffset = 0;
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size_t length = 0;
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void *resultData = nullptr;
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napi_value resultBuffer = nullptr;
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NAPI_CALL(env_, napi_get_typedarray_info(env_, dest, &type, &length, &resultData, &resultBuffer, &byteOffset));
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char *writeResult = static_cast<char*>(resultData) + byteOffset;
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int32_t nchars = 0;
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int32_t written = 0;
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NativeEngine *engine = reinterpret_cast<NativeEngine*>(env_);
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NativeValue *nativeValue = reinterpret_cast<NativeValue*>(src);
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engine->EncodeToUtf8(nativeValue, writeResult, &written, length, &nchars);
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napi_value result = nullptr;
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NAPI_CALL(env_, napi_create_object(env_, &result));
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napi_value read = nullptr;
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NAPI_CALL(env_, napi_create_int32(env_, nchars, &read));
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NAPI_CALL(env_, napi_set_named_property(env_, result, "read", read));
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napi_value resWritten = nullptr;
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NAPI_CALL(env_, napi_create_int32(env_, written, &resWritten));
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NAPI_CALL(env_, napi_set_named_property(env_, result, "written", resWritten));
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return result;
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}
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} |