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/IntegerPrintfMacros.h"
  15
  16 using namespace mozilla;
  17 using namespace dom;
  18
  19 namespace mozilla {
  20 namespace dom {
  21
  22 Comment::~Comment() {}
  23
  24 already_AddRefed<CharacterData> Comment::CloneDataNode(
  25     mozilla::dom::NodeInfo* aNodeInfo, bool aCloneText) const {
  26   RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
  27   RefPtr<Comment> it = new Comment(ni.forget());
  28   if (aCloneText) {
  29     it->mText = mText;
  30   }
  31
  32   return it.forget();
  33 }
  34
  35 #ifdef DEBUG
  36 void Comment::List(FILE* out, int32_t aIndent) const {
  37   int32_t indx;
  38   for (indx = aIndent; --indx >= 0;) fputs("  ", out);
  39
  40   fprintf(out, "Comment@%p refcount=%" PRIuPTR "<!--", (void*)this,
  41           mRefCnt.get());
  42
  43   nsAutoString tmp;
  44   ToCString(tmp, 0, mText.GetLength());
  45   fputs(NS_LossyConvertUTF16toASCII(tmp).get(), out);
  46
  47   fputs("-->\n", out);
  48 }
  49 #endif
  50
  51 /* static */
  52 already_AddRefed<Comment> Comment::Constructor(const GlobalObject& aGlobal,
  53                                                const nsAString& aData,
  54                                                ErrorResult& aRv) {
  55   nsCOMPtr<nsPIDOMWindowInner> window =
  56       do_QueryInterface(aGlobal.GetAsSupports());
  57   if (!window || !window->GetDoc()) {
  58     aRv.Throw(NS_ERROR_FAILURE);
  59     return nullptr;
  60   }
  61
  62   return window->GetDoc()->CreateComment(aData);
  63 }
  64
  65 JSObject* Comment::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
  66   return Comment_Binding::Wrap(aCx, this, aGivenProto);
  67 }
  68
  69 }  // namespace dom
  70 }  // namespace mozilla