michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsXBLProtoImpl_h__
michael@0: #define nsXBLProtoImpl_h__
michael@0: 
michael@0: #include "nsMemory.h"
michael@0: #include "nsXBLPrototypeHandler.h"
michael@0: #include "nsXBLProtoImplMember.h"
michael@0: #include "nsXBLProtoImplField.h"
michael@0: #include "nsXBLBinding.h"
michael@0: 
michael@0: class nsXBLPrototypeBinding;
michael@0: class nsXBLProtoImplAnonymousMethod;
michael@0: 
michael@0: class nsXBLProtoImpl MOZ_FINAL
michael@0: {
michael@0: public:
michael@0:   nsXBLProtoImpl()
michael@0:     : mPrecompiledMemberHolder(nullptr),
michael@0:       mMembers(nullptr),
michael@0:       mFields(nullptr),
michael@0:       mConstructor(nullptr),
michael@0:       mDestructor(nullptr)
michael@0:   {
michael@0:     MOZ_COUNT_CTOR(nsXBLProtoImpl);
michael@0:   }
michael@0:   ~nsXBLProtoImpl()
michael@0:   {
michael@0:     MOZ_COUNT_DTOR(nsXBLProtoImpl);
michael@0:     // Note: the constructor and destructor are in mMembers, so we'll
michael@0:     // clean them up automatically.
michael@0:     delete mMembers;
michael@0:     delete mFields;
michael@0:   }
michael@0: 
michael@0: 
michael@0:   nsresult InstallImplementation(nsXBLPrototypeBinding* aPrototypeBinding, nsXBLBinding* aBinding);
michael@0: 
michael@0: private:
michael@0:   nsresult InitTargetObjects(nsXBLPrototypeBinding* aBinding,
michael@0:                              nsIContent* aBoundElement,
michael@0:                              JS::MutableHandle<JSObject*> aTargetClassObject,
michael@0:                              bool* aTargetIsNew);
michael@0: 
michael@0: public:
michael@0:   nsresult CompilePrototypeMembers(nsXBLPrototypeBinding* aBinding);
michael@0: 
michael@0:   bool LookupMember(JSContext* aCx, nsString& aName, JS::Handle<jsid> aNameAsId,
michael@0:                     JS::MutableHandle<JSPropertyDescriptor> aDesc,
michael@0:                     JS::Handle<JSObject*> aClassObject);
michael@0: 
michael@0:   void SetMemberList(nsXBLProtoImplMember* aMemberList)
michael@0:   {
michael@0:     delete mMembers;
michael@0:     mMembers = aMemberList;
michael@0:   }
michael@0: 
michael@0:   void SetFieldList(nsXBLProtoImplField* aFieldList)
michael@0:   {
michael@0:     delete mFields;
michael@0:     mFields = aFieldList;
michael@0:   }
michael@0: 
michael@0:   void Trace(const TraceCallbacks& aCallbacks, void *aClosure);
michael@0:   void UnlinkJSObjects();
michael@0: 
michael@0:   nsXBLProtoImplField* FindField(const nsString& aFieldName) const;
michael@0: 
michael@0:   // Resolve all the fields for this implementation on the object |obj| False
michael@0:   // return means a JS exception was set.
michael@0:   bool ResolveAllFields(JSContext *cx, JS::Handle<JSObject*> obj) const;
michael@0: 
michael@0:   // Undefine all our fields from object |obj| (which should be a
michael@0:   // JSObject for a bound element).
michael@0:   void UndefineFields(JSContext* cx, JS::Handle<JSObject*> obj) const;
michael@0: 
michael@0:   bool CompiledMembers() const {
michael@0:     return mPrecompiledMemberHolder != nullptr;
michael@0:   }
michael@0: 
michael@0:   nsresult Read(nsIObjectInputStream* aStream,
michael@0:                 nsXBLPrototypeBinding* aBinding);
michael@0:   nsresult Write(nsIObjectOutputStream* aStream,
michael@0:                  nsXBLPrototypeBinding* aBinding);
michael@0: 
michael@0: protected:
michael@0:   // used by Read to add each member
michael@0:   nsXBLProtoImplMember* AddMember(nsXBLProtoImplMember* aMember,
michael@0:                                   nsXBLProtoImplMember* aPreviousMember)
michael@0:   {
michael@0:     if (aPreviousMember)
michael@0:       aPreviousMember->SetNext(aMember);
michael@0:     else
michael@0:       mMembers = aMember;
michael@0:     return aMember;
michael@0:   }
michael@0: 
michael@0:   void DestroyMembers();
michael@0: 
michael@0: public:
michael@0:   nsCString mClassName; // The name of the class.
michael@0: 
michael@0: protected:
michael@0:   JSObject* mPrecompiledMemberHolder; // The class object for the binding. We'll use this to pre-compile properties
michael@0:                           // and methods for the binding.
michael@0: 
michael@0:   nsXBLProtoImplMember* mMembers; // The members of an implementation are chained in this singly-linked list.
michael@0: 
michael@0:   nsXBLProtoImplField* mFields; // Our fields
michael@0: 
michael@0: public:
michael@0:   nsXBLProtoImplAnonymousMethod* mConstructor; // Our class constructor.
michael@0:   nsXBLProtoImplAnonymousMethod* mDestructor;  // Our class destructor.
michael@0: };
michael@0: 
michael@0: nsresult
michael@0: NS_NewXBLProtoImpl(nsXBLPrototypeBinding* aBinding,
michael@0:                    const char16_t* aClassName,
michael@0:                    nsXBLProtoImpl** aResult);
michael@0: 
michael@0: #endif // nsXBLProtoImpl_h__