зеркало из https://github.com/mozilla/gecko-dev.git
118 строки
3.8 KiB
C++
118 строки
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsXBLProtoImpl_h__
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#define nsXBLProtoImpl_h__
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#include "nsMemory.h"
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#include "nsXBLPrototypeHandler.h"
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#include "nsXBLProtoImplMember.h"
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#include "nsXBLProtoImplField.h"
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#include "nsXBLBinding.h"
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class nsXBLPrototypeBinding;
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class nsXBLProtoImplAnonymousMethod;
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class nsXBLProtoImpl final {
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public:
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nsXBLProtoImpl()
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: mPrecompiledMemberHolder(nullptr),
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mMembers(nullptr),
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mFields(nullptr),
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mConstructor(nullptr),
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mDestructor(nullptr) {
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MOZ_COUNT_CTOR(nsXBLProtoImpl);
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}
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~nsXBLProtoImpl() {
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MOZ_COUNT_DTOR(nsXBLProtoImpl);
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// Note: the constructor and destructor are in mMembers, so we'll
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// clean them up automatically.
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delete mMembers;
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delete mFields;
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}
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nsresult InstallImplementation(nsXBLPrototypeBinding* aPrototypeBinding,
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nsXBLBinding* aBinding);
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private:
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nsresult InitTargetObjects(nsXBLPrototypeBinding* aBinding,
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nsIContent* aBoundElement,
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JS::MutableHandle<JSObject*> aTargetClassObject,
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bool* aTargetIsNew);
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public:
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nsresult CompilePrototypeMembers(nsXBLPrototypeBinding* aBinding);
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bool LookupMember(JSContext* aCx, nsString& aName, JS::Handle<jsid> aNameAsId,
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JS::MutableHandle<JS::PropertyDescriptor> aDesc,
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JS::Handle<JSObject*> aClassObject);
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void SetMemberList(nsXBLProtoImplMember* aMemberList) {
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delete mMembers;
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mMembers = aMemberList;
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}
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void SetFieldList(nsXBLProtoImplField* aFieldList) {
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delete mFields;
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mFields = aFieldList;
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}
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void Trace(const TraceCallbacks& aCallbacks, void* aClosure);
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void UnlinkJSObjects();
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nsXBLProtoImplField* FindField(const nsString& aFieldName) const;
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// Resolve all the fields for this implementation on the object |obj| False
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// return means a JS exception was set.
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bool ResolveAllFields(JSContext* cx, JS::Handle<JSObject*> obj) const;
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// Undefine all our fields from object |obj| (which should be a
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// JSObject for a bound element).
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void UndefineFields(JSContext* cx, JS::Handle<JSObject*> obj) const;
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bool CompiledMembers() const { return mPrecompiledMemberHolder != nullptr; }
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nsresult Read(nsIObjectInputStream* aStream, nsXBLPrototypeBinding* aBinding);
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nsresult Write(nsIObjectOutputStream* aStream,
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nsXBLPrototypeBinding* aBinding);
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protected:
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// used by Read to add each member
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nsXBLProtoImplMember* AddMember(nsXBLProtoImplMember* aMember,
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nsXBLProtoImplMember* aPreviousMember) {
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if (aPreviousMember)
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aPreviousMember->SetNext(aMember);
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else
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mMembers = aMember;
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return aMember;
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}
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void DestroyMembers();
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public:
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nsString mClassName; // The name of the class.
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protected:
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JSObject*
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mPrecompiledMemberHolder; // The class object for the binding. We'll use
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// this to pre-compile properties and methods
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// for the binding.
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nsXBLProtoImplMember* mMembers; // The members of an implementation are
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// chained in this singly-linked list.
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nsXBLProtoImplField* mFields; // Our fields
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public:
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nsXBLProtoImplAnonymousMethod* mConstructor; // Our class constructor.
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nsXBLProtoImplAnonymousMethod* mDestructor; // Our class destructor.
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};
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void NS_NewXBLProtoImpl(nsXBLPrototypeBinding* aBinding,
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const char16_t* aClassName, nsXBLProtoImpl** aResult);
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#endif // nsXBLProtoImpl_h__
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