The Tor Browser: dom/xbl/nsXBLProtoImpl.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef nsXBLProtoImpl_h__

     7 #define nsXBLProtoImpl_h__

     9 #include "nsMemory.h"

    10 #include "nsXBLPrototypeHandler.h"

    11 #include "nsXBLProtoImplMember.h"

    12 #include "nsXBLProtoImplField.h"

    13 #include "nsXBLBinding.h"

    15 class nsXBLPrototypeBinding;

    16 class nsXBLProtoImplAnonymousMethod;

    18 class nsXBLProtoImpl MOZ_FINAL

    19 {

    20 public:

    21   nsXBLProtoImpl()

    22     : mPrecompiledMemberHolder(nullptr),

    23       mMembers(nullptr),

    24       mFields(nullptr),

    25       mConstructor(nullptr),

    26       mDestructor(nullptr)

    27   {

    28     MOZ_COUNT_CTOR(nsXBLProtoImpl);

    29   }

    30   ~nsXBLProtoImpl()

    31   {

    32     MOZ_COUNT_DTOR(nsXBLProtoImpl);

    33     // Note: the constructor and destructor are in mMembers, so we'll

    34     // clean them up automatically.

    35     delete mMembers;

    36     delete mFields;

    37   }

    40   nsresult InstallImplementation(nsXBLPrototypeBinding* aPrototypeBinding, nsXBLBinding* aBinding);

    42 private:

    43   nsresult InitTargetObjects(nsXBLPrototypeBinding* aBinding,

    44                              nsIContent* aBoundElement,

    45                              JS::MutableHandle<JSObject*> aTargetClassObject,

    46                              bool* aTargetIsNew);

    48 public:

    49   nsresult CompilePrototypeMembers(nsXBLPrototypeBinding* aBinding);

    51   bool LookupMember(JSContext* aCx, nsString& aName, JS::Handle<jsid> aNameAsId,

    52                     JS::MutableHandle<JSPropertyDescriptor> aDesc,

    53                     JS::Handle<JSObject*> aClassObject);

    55   void SetMemberList(nsXBLProtoImplMember* aMemberList)

    56   {

    57     delete mMembers;

    58     mMembers = aMemberList;

    59   }

    61   void SetFieldList(nsXBLProtoImplField* aFieldList)

    62   {

    63     delete mFields;

    64     mFields = aFieldList;

    65   }

    67   void Trace(const TraceCallbacks& aCallbacks, void *aClosure);

    68   void UnlinkJSObjects();

    70   nsXBLProtoImplField* FindField(const nsString& aFieldName) const;

    72   // Resolve all the fields for this implementation on the object |obj| False

    73   // return means a JS exception was set.

    74   bool ResolveAllFields(JSContext *cx, JS::Handle<JSObject*> obj) const;

    76   // Undefine all our fields from object |obj| (which should be a

    77   // JSObject for a bound element).

    78   void UndefineFields(JSContext* cx, JS::Handle<JSObject*> obj) const;

    80   bool CompiledMembers() const {

    81     return mPrecompiledMemberHolder != nullptr;

    82   }

    84   nsresult Read(nsIObjectInputStream* aStream,

    85                 nsXBLPrototypeBinding* aBinding);

    86   nsresult Write(nsIObjectOutputStream* aStream,

    87                  nsXBLPrototypeBinding* aBinding);

    89 protected:

    90   // used by Read to add each member

    91   nsXBLProtoImplMember* AddMember(nsXBLProtoImplMember* aMember,

    92                                   nsXBLProtoImplMember* aPreviousMember)

    93   {

    94     if (aPreviousMember)

    95       aPreviousMember->SetNext(aMember);

    96     else

    97       mMembers = aMember;

    98     return aMember;

    99   }

   101   void DestroyMembers();

   103 public:

   104   nsCString mClassName; // The name of the class.

   106 protected:

   107   JSObject* mPrecompiledMemberHolder; // The class object for the binding. We'll use this to pre-compile properties

   108                           // and methods for the binding.

   110   nsXBLProtoImplMember* mMembers; // The members of an implementation are chained in this singly-linked list.

   112   nsXBLProtoImplField* mFields; // Our fields

   114 public:

   115   nsXBLProtoImplAnonymousMethod* mConstructor; // Our class constructor.

   116   nsXBLProtoImplAnonymousMethod* mDestructor;  // Our class destructor.

   117 };

   119 nsresult

   120 NS_NewXBLProtoImpl(nsXBLPrototypeBinding* aBinding,

   121                    const char16_t* aClassName,

   122                    nsXBLProtoImpl** aResult);

   124 #endif // nsXBLProtoImpl_h__

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