mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/**
|
|
* A common base class for representing WebIDL callback function types in C++.
|
|
*
|
|
* This class implements common functionality like lifetime
|
|
* management, initialization with the callable, and setup of the call
|
|
* environment. Subclasses corresponding to particular callback
|
|
* function types should provide a Call() method that actually does
|
|
* the call.
|
|
*/
|
|
|
|
#ifndef mozilla_dom_CallbackFunction_h
|
|
#define mozilla_dom_CallbackFunction_h
|
|
|
|
#include "mozilla/dom/CallbackObject.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class CallbackFunction : public CallbackObject
|
|
{
|
|
public:
|
|
explicit CallbackFunction(JSObject* aCallable)
|
|
: CallbackObject(aCallable)
|
|
{
|
|
MOZ_ASSERT(JS_ObjectIsCallable(nullptr, aCallable));
|
|
}
|
|
|
|
JS::Handle<JSObject*> Callable() const
|
|
{
|
|
return Callback();
|
|
}
|
|
|
|
bool HasGrayCallable() const
|
|
{
|
|
// Play it safe in case this gets called after unlink.
|
|
return mCallback && xpc_IsGrayGCThing(mCallback);
|
|
}
|
|
|
|
protected:
|
|
explicit CallbackFunction(CallbackFunction* aCallbackFunction)
|
|
: CallbackObject(aCallbackFunction)
|
|
{
|
|
}
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_dom_CallbackFunction_h
|