dom/base/Comment.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 /*
   8  * Implementations of DOM Core's Comment node.
   9  */
  10
  11 #include "nsCOMPtr.h"
  12 #include "mozilla/dom/Comment.h"
  13 #include "mozilla/dom/CommentBinding.h"
  14 #include "mozilla/dom/Document.h"
  15 #include "mozilla/IntegerPrintfMacros.h"
  16 #include "nsPIDOMWindow.h"
  17
  18 using namespace mozilla;
  19 using namespace dom;
  20
  21 namespace mozilla::dom {
  22
  23 Comment::~Comment() = default;
  24
  25 already_AddRefed<CharacterData> Comment::CloneDataNode(
  26     mozilla::dom::NodeInfo* aNodeInfo, bool aCloneText) const {
  27   RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
  28   auto* nim = ni->NodeInfoManager();
  29   RefPtr<Comment> it = new (nim) Comment(ni.forget());
  30   if (aCloneText) {
  31     it->mText = mText;
  32   }
  33
  34   return it.forget();
  35 }
  36
  37 #ifdef DEBUG
  38 void Comment::List(FILE* out, int32_t aIndent) const {
  39   int32_t indx;
  40   for (indx = aIndent; --indx >= 0;) fputs("  ", out);
  41
  42   fprintf(out, "Comment@%p refcount=%" PRIuPTR "<!--", (void*)this,
  43           mRefCnt.get());
  44
  45   nsAutoString tmp;
  46   ToCString(tmp, 0, mText.GetLength());
  47   fputs(NS_LossyConvertUTF16toASCII(tmp).get(), out);
  48
  49   fputs("-->\n", out);
  50 }
  51 #endif
  52
  53 /* static */
  54 already_AddRefed<Comment> Comment::Constructor(const GlobalObject& aGlobal,
  55                                                const nsAString& aData,
  56                                                ErrorResult& aRv) {
  57   nsCOMPtr<nsPIDOMWindowInner> window =
  58       do_QueryInterface(aGlobal.GetAsSupports());
  59   if (!window || !window->GetDoc()) {
  60     aRv.Throw(NS_ERROR_FAILURE);
  61     return nullptr;
  62   }
  63
  64   return window->GetDoc()->CreateComment(aData);
  65 }
  66
  67 JSObject* Comment::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
  68   return Comment_Binding::Wrap(aCx, this, aGivenProto);
  69 }
  70
  71 }  // namespace mozilla::dom