electron/shell/common/gin_helper/persistent_dictionary.h

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// Copyright 2014 Cheng Zhao. All rights reserved.
// Use of this source code is governed by MIT license that can be found in the
// LICENSE file.
#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_
#define ELECTRON_SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_
#include "base/memory/raw_ptr.h"
chore: more iwyu (#43063) * chore: iwyu shell/browser/electron_pdf_document_helper_client.h * chore: iwyu shell/browser/hid/electron_hid_delegate.h * chore: iwyu content/public/browser/web_contents.h * chore: iwyu shell/browser/usb/electron_usb_delegate.h * chore: iwyu shell/browser/browser_observer.h * chore: iwyu shell/browser/bluetooth/electron_bluetooth_delegate.h * chore: iwyu shell/browser/serial/electron_serial_delegate.h * chore: iwyu shell/browser/api/frame_subscriber.h * chore: iwyu mojo/public/cpp/bindings/ * chore: iwyu components/ * chore: iwyu extensions/ * chore: iwyu shell/common/gin_helper/ * chore: iwyu v8/ * chore: iwyu base/containers/linked_list.h * chore: iwyu shell/browser/native_window.h * chore: iwyu shell/browser/api/electron_api_base_window.h * chore: iwyu shell/common/node_includes.h * chore: iwyu gin/handle.h * chore: iwyu base/functional/callback.h * chore: iwyu ui/gfx/ * chore: iwyu content/public/browser/render_frame_host.h * fix: mac * fix: mac * fix: win * chore: iwyu base/files/file_path.h * chore: iwyu base/unguessable_token.h * chore: iwyu ui/display/screen.h * chore: iwyu chrome/browser/predictors/preconnect_manager.h * chore: iwyu base/observer_list_types.h * chore: iwyu content/public/browser/web_contents.h * chore: iwyu chrome/browser/devtools/devtools_eye_dropper.h * chore: iwyu shell/browser/ui/inspectable_web_contents.h * chore: iwyu content/public/browser/keyboard_event_processing_result.h * chore: iwyu net/cookies/canonical_cookie.h * chore: iwyu net/base/address_list.h * chore: iwyu net/cert/x509_certificate.h * chore: iwyu net/cookies/cookie_change_dispatcher.h * chore: iwyu net/dns/public/host_resolver_results.h * fix: mac * Revert "chore: iwyu net/cert/x509_certificate.h" This reverts commit 002896f71146e90f1e29e090a1d6eede48cee11e.
2024-07-29 17:42:57 +00:00
#include "gin/converter.h"
#include "v8/include/v8-context.h"
#include "v8/include/v8-isolate.h"
#include "v8/include/v8-local-handle.h"
#include "v8/include/v8-object.h"
namespace gin_helper {
// Like Dictionary, but stores object in persistent handle so you can keep it
// safely on heap.
//
// TODO(zcbenz): The only user of this class is ElectronTouchBar, we should
// migrate away from this class.
class PersistentDictionary {
public:
PersistentDictionary();
PersistentDictionary(v8::Isolate* isolate, v8::Local<v8::Object> object);
PersistentDictionary(const PersistentDictionary& other);
~PersistentDictionary();
PersistentDictionary& operator=(const PersistentDictionary& other);
v8::Local<v8::Object> GetHandle() const;
template <typename K, typename V>
bool Get(const K& key, V* out) const {
const auto handle = GetHandle();
v8::Local<v8::Context> context = isolate_->GetCurrentContext();
v8::Local<v8::Value> v8_key = gin::ConvertToV8(isolate_, key);
v8::Local<v8::Value> value;
return handle->Has(context, v8_key).FromMaybe(false) &&
handle->Get(context, v8_key).ToLocal(&value) &&
gin::ConvertFromV8(isolate_, value, out);
}
private:
raw_ptr<v8::Isolate> isolate_ = nullptr;
v8::Global<v8::Object> handle_;
};
} // namespace gin_helper
namespace gin {
template <>
struct Converter<gin_helper::PersistentDictionary> {
static bool FromV8(v8::Isolate* isolate,
v8::Local<v8::Value> val,
gin_helper::PersistentDictionary* out) {
if (!val->IsObject())
return false;
*out = gin_helper::PersistentDictionary(isolate, val.As<v8::Object>());
return true;
}
};
} // namespace gin
#endif // ELECTRON_SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_