cef/libcef/common/json_impl.cc

92 lines
2.7 KiB
C++

// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that can
// be found in the LICENSE file.
#include "include/cef_parser.h"
#include "libcef/common/values_impl.h"
#include "base/json/json_reader.h"
#include "base/json/json_writer.h"
#include "base/values.h"
namespace {
int GetJSONReaderOptions(cef_json_parser_options_t options) {
int op = base::JSON_PARSE_RFC;
if (options & JSON_PARSER_ALLOW_TRAILING_COMMAS) {
op |= base::JSON_ALLOW_TRAILING_COMMAS;
}
return op;
}
int GetJSONWriterOptions(cef_json_writer_options_t options) {
int op = 0;
if (options & JSON_WRITER_OMIT_BINARY_VALUES) {
op |= base::JSONWriter::OPTIONS_OMIT_BINARY_VALUES;
}
if (options & JSON_WRITER_OMIT_DOUBLE_TYPE_PRESERVATION) {
op |= base::JSONWriter::OPTIONS_OMIT_DOUBLE_TYPE_PRESERVATION;
}
if (options & JSON_WRITER_PRETTY_PRINT) {
op |= base::JSONWriter::OPTIONS_PRETTY_PRINT;
}
return op;
}
} // namespace
CefRefPtr<CefValue> CefParseJSON(const CefString& json_string,
cef_json_parser_options_t options) {
const std::string& json = json_string.ToString();
return CefParseJSON(json.data(), json.size(), options);
}
CefRefPtr<CefValue> CefParseJSON(const void* json,
size_t json_size,
cef_json_parser_options_t options) {
if (!json || json_size == 0) {
return nullptr;
}
std::optional<base::Value> parse_result = base::JSONReader::Read(
base::StringPiece(static_cast<const char*>(json), json_size),
GetJSONReaderOptions(options));
if (parse_result) {
return new CefValueImpl(std::move(parse_result.value()));
}
return nullptr;
}
CefRefPtr<CefValue> CefParseJSONAndReturnError(
const CefString& json_string,
cef_json_parser_options_t options,
CefString& error_msg_out) {
const std::string& json = json_string.ToString();
std::string error_msg;
auto result = base::JSONReader::ReadAndReturnValueWithError(
json, GetJSONReaderOptions(options));
if (result.has_value()) {
return new CefValueImpl(std::move(*result));
}
error_msg_out = result.error().message;
return nullptr;
}
CefString CefWriteJSON(CefRefPtr<CefValue> node,
cef_json_writer_options_t options) {
if (!node.get() || !node->IsValid()) {
return CefString();
}
CefValueImpl* impl = static_cast<CefValueImpl*>(node.get());
CefValueImpl::ScopedLockedValue scoped_value(impl);
std::string json_string;
if (base::JSONWriter::WriteWithOptions(
*scoped_value.value(), GetJSONWriterOptions(options), &json_string)) {
return json_string;
}
return CefString();
}