dom/xbl/nsXBLProtoImplMember.h
author Cosmin Sabou <csabou@mozilla.com>
Sat, 02 Mar 2019 20:40:01 +0200
changeset 462132 bf3cbcc825276823afba2778333cf62cfa75039c
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Backed out 16 changesets (bug 827976) for causing bug 1532054. a=backout Backed out changeset 54c0b12443ed (bug 827976) Backed out changeset 92b45080d080 (bug 827976) Backed out changeset 443087a359f9 (bug 827976) Backed out changeset f976c2d4cebb (bug 827976) Backed out changeset 66cffb171024 (bug 827976) Backed out changeset 845e1d0b2402 (bug 827976) Backed out changeset fd94066a1d76 (bug 827976) Backed out changeset e253b264e7bd (bug 827976) Backed out changeset 07ef335770a8 (bug 827976) Backed out changeset 9d3805d77b99 (bug 827976) Backed out changeset eed600ceb606 (bug 827976) Backed out changeset 3b64368cff52 (bug 827976) Backed out changeset 69d0378e0c09 (bug 827976) Backed out changeset 9203871a5c6f (bug 827976) Backed out changeset 96a507c818e2 (bug 827976) Backed out changeset e254496ff95b (bug 827976)

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 nsXBLProtoImplMember_h__
#define nsXBLProtoImplMember_h__

#include "nsAtom.h"
#include "nsString.h"
#include "nsString.h"
#include "nsIServiceManager.h"
#include "nsContentUtils.h"  // For NS_CONTENT_DELETE_LIST_MEMBER.
#include "nsCycleCollectionParticipant.h"

class nsIObjectOutputStream;

struct nsXBLTextWithLineNumber {
  char16_t* mText;
  uint32_t mLineNumber;

  nsXBLTextWithLineNumber() : mText(nullptr), mLineNumber(0) {
    MOZ_COUNT_CTOR(nsXBLTextWithLineNumber);
  }

  ~nsXBLTextWithLineNumber() {
    MOZ_COUNT_DTOR(nsXBLTextWithLineNumber);
    if (mText) {
      free(mText);
    }
  }

  void AppendText(const nsAString& aText) {
    if (mText) {
      char16_t* temp = mText;
      mText = ToNewUnicode(nsDependentString(temp) + aText);
      free(temp);
    } else {
      mText = ToNewUnicode(aText);
    }
  }

  char16_t* GetText() { return mText; }

  void SetLineNumber(uint32_t aLineNumber) { mLineNumber = aLineNumber; }

  uint32_t GetLineNumber() { return mLineNumber; }
};

class nsXBLProtoImplMember {
 public:
  explicit nsXBLProtoImplMember(const char16_t* aName)
      : mNext(nullptr), mExposeToUntrustedContent(false) {
    mName = ToNewUnicode(nsDependentString(aName));
  }
  virtual ~nsXBLProtoImplMember() {
    free(mName);
    NS_CONTENT_DELETE_LIST_MEMBER(nsXBLProtoImplMember, this, mNext);
  }

  nsXBLProtoImplMember* GetNext() { return mNext; }
  void SetNext(nsXBLProtoImplMember* aNext) { mNext = aNext; }
  bool ShouldExposeToUntrustedContent() { return mExposeToUntrustedContent; }
  void SetExposeToUntrustedContent(bool aExpose) {
    mExposeToUntrustedContent = aExpose;
  }
  const char16_t* GetName() { return mName; }

  virtual nsresult InstallMember(JSContext* aCx,
                                 JS::Handle<JSObject*> aTargetClassObject) = 0;
  virtual nsresult CompileMember(mozilla::dom::AutoJSAPI& jsapi,
                                 const nsString& aClassStr,
                                 JS::Handle<JSObject*> aClassObject) = 0;

  virtual void Trace(const TraceCallbacks& aCallbacks, void* aClosure) = 0;

  virtual nsresult Write(nsIObjectOutputStream* aStream) { return NS_OK; }

 protected:
  nsXBLProtoImplMember* mNext;  // The members of an implementation are chained.
  char16_t* mName;              // The name of the field, method, or property.

  bool mExposeToUntrustedContent;  // If this binding is installed on an element
                                   // in an untrusted scope, should this
                                   // implementation member be accessible to the
                                   // content?
};

#endif  // nsXBLProtoImplMember_h__