The Tor Browser: content/base/src/DocumentFragment.cpp@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 /*

     7  * Implementation of DOM Core's nsIDOMDocumentFragment.

     8  */

    10 #include "mozilla/dom/DocumentFragment.h"

    11 #include "mozilla/dom/Element.h" // for NS_IMPL_ELEMENT_CLONE

    12 #include "nsINodeInfo.h"

    13 #include "nsNodeInfoManager.h"

    14 #include "nsError.h"

    15 #include "nsGkAtoms.h"

    16 #include "nsDOMString.h"

    17 #include "nsContentUtils.h" // for NS_INTERFACE_MAP_ENTRY_TEAROFF

    18 #include "mozilla/dom/DocumentFragmentBinding.h"

    19 #include "nsPIDOMWindow.h"

    20 #include "nsIDocument.h"

    21 #include "mozilla/IntegerPrintfMacros.h"

    23 namespace mozilla {

    24 namespace dom {

    26 JSObject*

    27 DocumentFragment::WrapNode(JSContext *aCx)

    28 {

    29   return DocumentFragmentBinding::Wrap(aCx, this);

    30 }

    32 bool

    33 DocumentFragment::IsNodeOfType(uint32_t aFlags) const

    34 {

    35   return !(aFlags & ~(eCONTENT | eDOCUMENT_FRAGMENT));

    36 }

    38 nsIAtom*

    39 DocumentFragment::DoGetID() const

    40 {

    41   return nullptr;

    42 }

    44 nsIAtom*

    45 DocumentFragment::GetIDAttributeName() const

    46 {

    47   return nullptr;

    48 }

    50 NS_IMETHODIMP

    51 DocumentFragment::QuerySelector(const nsAString& aSelector,

    52                                 nsIDOMElement **aReturn)

    53 {

    54   return nsINode::QuerySelector(aSelector, aReturn);

    55 }

    57 NS_IMETHODIMP

    58 DocumentFragment::QuerySelectorAll(const nsAString& aSelector,

    59                                    nsIDOMNodeList **aReturn)

    60 {

    61   return nsINode::QuerySelectorAll(aSelector, aReturn);

    62 }

    64 #ifdef DEBUG

    65 void

    66 DocumentFragment::List(FILE* out, int32_t aIndent) const

    67 {

    68   int32_t indent;

    69   for (indent = aIndent; --indent >= 0; ) {

    70     fputs("  ", out);

    71   }

    73   fprintf(out, "DocumentFragment@%p", (void *)this);

    75   fprintf(out, " flags=[%08x]", static_cast<unsigned int>(GetFlags()));

    76   fprintf(out, " refcount=%" PRIuPTR "<", mRefCnt.get());

    78   nsIContent* child = GetFirstChild();

    79   if (child) {

    80     fputs("\n", out);

    82     for (; child; child = child->GetNextSibling()) {

    83       child->List(out, aIndent + 1);

    84     }

    86     for (indent = aIndent; --indent >= 0; ) {

    87       fputs("  ", out);

    88     }

    89   }

    91   fputs(">\n", out);

    92 }

    94 void

    95 DocumentFragment::DumpContent(FILE* out, int32_t aIndent,

    96                               bool aDumpAll) const

    97 {

    98   int32_t indent;

    99   for (indent = aIndent; --indent >= 0; ) {

   100     fputs("  ", out);

   101   }

   103   fputs("<DocumentFragment>", out);

   105   if(aIndent) {

   106     fputs("\n", out);

   107   }

   109   for (nsIContent* child = GetFirstChild();

   110        child;

   111        child = child->GetNextSibling()) {

   112     int32_t indent = aIndent ? aIndent + 1 : 0;

   113     child->DumpContent(out, indent, aDumpAll);

   114   }

   115   for (indent = aIndent; --indent >= 0; ) {

   116     fputs("  ", out);

   117   }

   118   fputs("</DocumentFragment>", out);

   120   if(aIndent) {

   121     fputs("\n", out);

   122   }

   123 }

   124 #endif

   126 /* static */ already_AddRefed<DocumentFragment>

   127 DocumentFragment::Constructor(const GlobalObject& aGlobal,

   128                               ErrorResult& aRv)

   129 {

   130   nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aGlobal.GetAsSupports());

   131   if (!window || !window->GetDoc()) {

   132     aRv.Throw(NS_ERROR_FAILURE);

   133     return nullptr;

   134   }

   136   return window->GetDoc()->CreateDocumentFragment();

   137 }

   139 // QueryInterface implementation for DocumentFragment

   140 NS_INTERFACE_MAP_BEGIN(DocumentFragment)

   141   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY

   142   NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(DocumentFragment)

   143   NS_INTERFACE_MAP_ENTRY(nsIContent)

   144   NS_INTERFACE_MAP_ENTRY(nsINode)

   145   NS_INTERFACE_MAP_ENTRY(nsIDOMDocumentFragment)

   146   NS_INTERFACE_MAP_ENTRY(nsIDOMNode)

   147   NS_INTERFACE_MAP_ENTRY(nsIDOMEventTarget)

   148   NS_INTERFACE_MAP_ENTRY(mozilla::dom::EventTarget)

   149   NS_INTERFACE_MAP_ENTRY_TEAROFF(nsISupportsWeakReference,

   150                                  new nsNodeSupportsWeakRefTearoff(this))

   151   // DOM bindings depend on the identity pointer being the

   152   // same as nsINode (which nsIContent inherits).

   153   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIContent)

   154 NS_INTERFACE_MAP_END

   156 NS_IMPL_ADDREF_INHERITED(DocumentFragment, FragmentOrElement)

   157 NS_IMPL_RELEASE_INHERITED(DocumentFragment, FragmentOrElement)

   159 NS_IMPL_ELEMENT_CLONE(DocumentFragment)

   161 } // namespace dom

   162 } // namespace mozilla

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