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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_RENDERER_API_BINDING_TYPES_H_
#define EXTENSIONS_RENDERER_API_BINDING_TYPES_H_
#include <memory>
#include <vector>
#include "base/callback.h"
#include "v8/include/v8.h"
namespace extensions {
namespace binding {
// Types of changes for event listener registration.
enum class EventListenersChanged {
HAS_LISTENERS, // The event had no listeners, and now does.
NO_LISTENERS, // The event had listeners, and now does not.
};
// A callback to execute the given v8::Function with the provided context and
// arguments.
using RunJSFunction = base::Callback<void(v8::Local<v8::Function>,
v8::Local<v8::Context>,
int argc,
v8::Local<v8::Value>[])>;
// A callback to execute the given v8::Function synchronously and return the
// result. Note that script can be suspended, so you need to be certain that
// it is not before expected a synchronous result. We use a Global instead of a
// Local because certain implementations need to create a persistent handle in
// order to prevent immediate destruction of the locals.
// TODO(devlin): if we could, using Local here with an EscapableHandleScope
// would be preferable.
using RunJSFunctionSync =
base::Callback<v8::Global<v8::Value>(v8::Local<v8::Function>,
v8::Local<v8::Context>,
int argc,
v8::Local<v8::Value>[])>;
} // namespace binding
} // namespace extensions
#endif // EXTENSIONS_RENDERER_API_BINDING_TYPES_H_
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