/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */ /* 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/. */ #ifndef mozilla_dom_workers_dombindingbase_h__ #define mozilla_dom_workers_dombindingbase_h__ #include "mozilla/dom/workers/Workers.h" #include "nsISupportsImpl.h" #include "nsWrapperCache.h" #include "nsWrapperCacheInlines.h" BEGIN_WORKERS_NAMESPACE #define BINDING_ENSURE_TRUE(_cond, _result, _retval) \ PR_BEGIN_MACRO \ if (!(_cond)) { \ NS_WARNING("BINDING_ENSURE failed!"); \ aRv = _result; \ return _retval; \ } \ PR_END_MACRO #define BINDING_ENSURE_SUCCESS(_cond, _result, _retval) \ BINDING_ENSURE_TRUE(NS_SUCCEEDED(_cond), _result, _retval) class DOMBindingBase : public nsWrapperCache, public nsISupports { JSContext* mJSContext; protected: DOMBindingBase(JSContext* aCx); virtual ~DOMBindingBase(); virtual void _trace(JSTracer* aTrc); virtual void _finalize(JSFreeOp* aFop); public: NS_DECL_ISUPPORTS JSContext* GetJSContext() const; void TraceJSObject(JSTracer* aTrc, const char* aName) { if (GetJSObject()) { TraceWrapperJSObject(aTrc, aName); } } #ifdef DEBUG JSObject* GetJSObject() const; void SetJSObject(JSObject* aObject); #else JSObject* GetJSObject() const { return GetWrapperJSObject(); } void SetJSObject(JSObject* aObject) { SetWrapperJSObject(aObject); } #endif }; template class DOMBindingAnchor { T* mBinding; JS::Anchor mAnchor; public: DOMBindingAnchor() : mBinding(NULL) { } DOMBindingAnchor(T* aBinding) { *this = aBinding; } DOMBindingAnchor& operator=(T* aBinding) { mBinding = aBinding; if (aBinding) { JSObject* obj = aBinding->GetJSObject(); MOZ_ASSERT(obj); mAnchor.set(obj); } else { mAnchor.clear(); } } T* get() const { return const_cast(mBinding); } T* operator->() const { return get(); } operator T*() const { return get(); } private: DOMBindingAnchor(const DOMBindingAnchor& aOther) MOZ_DELETE; DOMBindingAnchor& operator=(const DOMBindingAnchor& aOther) MOZ_DELETE; }; END_WORKERS_NAMESPACE #endif // mozilla_dom_workers_dombindingbase_h__