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electron_api_printing.cc
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electron_api_printing.cc
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// Copyright (c) 2020 Slack Technologies, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "base/threading/thread_restrictions.h"
#include "chrome/browser/browser_process.h"
#include "gin/converter.h"
#include "printing/buildflags/buildflags.h"
#include "shell/common/gin_helper/dictionary.h"
#include "shell/common/node_includes.h"
#if BUILDFLAG(ENABLE_PRINTING)
#include "printing/backend/print_backend.h"
#endif
namespace gin {
#if BUILDFLAG(ENABLE_PRINTING)
template <>
struct Converter<printing::PrinterBasicInfo> {
static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
const printing::PrinterBasicInfo& val) {
gin_helper::Dictionary dict = gin::Dictionary::CreateEmpty(isolate);
dict.Set("name", val.printer_name);
dict.Set("displayName", val.display_name);
dict.Set("description", val.printer_description);
dict.Set("status", val.printer_status);
dict.Set("isDefault", val.is_default ? true : false);
dict.Set("options", val.options);
return dict.GetHandle();
}
};
#endif
} // namespace gin
namespace electron {
namespace api {
#if BUILDFLAG(ENABLE_PRINTING)
printing::PrinterList GetPrinterList() {
printing::PrinterList printers;
auto print_backend = printing::PrintBackend::CreateInstance(
g_browser_process->GetApplicationLocale());
{
// TODO(deepak1556): Deprecate this api in favor of an
// async version and post a non blocing task call.
base::ThreadRestrictions::ScopedAllowIO allow_io;
printing::mojom::ResultCode code =
print_backend->EnumeratePrinters(&printers);
if (code != printing::mojom::ResultCode::kSuccess)
LOG(INFO) << "Failed to enumerate printers";
}
return printers;
}
#endif
} // namespace api
} // namespace electron
namespace {
#if BUILDFLAG(ENABLE_PRINTING)
using electron::api::GetPrinterList;
#endif
void Initialize(v8::Local<v8::Object> exports,
v8::Local<v8::Value> unused,
v8::Local<v8::Context> context,
void* priv) {
v8::Isolate* isolate = context->GetIsolate();
gin_helper::Dictionary dict(isolate, exports);
#if BUILDFLAG(ENABLE_PRINTING)
dict.SetMethod("getPrinterList", base::BindRepeating(&GetPrinterList));
#endif
}
} // namespace
NODE_LINKED_MODULE_CONTEXT_AWARE(electron_browser_printing, Initialize)