tor-browser

The Tor Browser
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HTMLElementFactory.cpp (2520B)

      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 #include "mozilla/Assertions.h"
      8 #include "mozilla/dom/CustomElementRegistry.h"
      9 #include "mozilla/dom/Element.h"
     10 #include "mozilla/dom/NodeInfo.h"
     11 #include "nsContentCreatorFunctions.h"
     12 #include "nsError.h"
     13 #include "nsGenericHTMLElement.h"
     14 #include "nsHTMLTags.h"
     15 #include "nsNodeInfoManager.h"
     16 
     17 using namespace mozilla;
     18 using namespace mozilla::dom;
     19 
     20 //----------------------------------------------------------------------
     21 
     22 nsGenericHTMLElement* NS_NewHTMLNOTUSEDElement(
     23    already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
     24    FromParser aFromParser) {
     25  MOZ_ASSERT_UNREACHABLE("The element ctor should never be called");
     26  return nullptr;
     27 }
     28 
     29 #define HTML_TAG(_tag, _classname, _interfacename) \
     30  NS_NewHTML##_classname##Element,
     31 #define HTML_OTHER(_tag) NS_NewHTMLNOTUSEDElement,
     32 static const HTMLContentCreatorFunction sHTMLContentCreatorFunctions[] = {
     33    NS_NewHTMLUnknownElement,
     34 #include "nsHTMLTagList.h"
     35 #undef HTML_TAG
     36 #undef HTML_OTHER
     37    NS_NewHTMLUnknownElement};
     38 
     39 nsresult NS_NewHTMLElement(Element** aResult,
     40                           already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
     41                           FromParser aFromParser, nsAtom* aIsAtom,
     42                           mozilla::dom::CustomElementDefinition* aDefinition) {
     43  RefPtr<mozilla::dom::NodeInfo> nodeInfo = aNodeInfo;
     44 
     45  MOZ_ASSERT(
     46      nodeInfo->NamespaceEquals(kNameSpaceID_XHTML),
     47      "Trying to create HTML elements that don't have the XHTML namespace");
     48 
     49  return nsContentUtils::NewXULOrHTMLElement(aResult, nodeInfo, aFromParser,
     50                                             aIsAtom, aDefinition);
     51 }
     52 
     53 already_AddRefed<nsGenericHTMLElement> CreateHTMLElement(
     54    uint32_t aNodeType, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
     55    FromParser aFromParser) {
     56  MOZ_ASSERT(aNodeType <= NS_HTML_TAG_MAX || aNodeType == eHTMLTag_userdefined,
     57             "aNodeType is out of bounds");
     58 
     59  HTMLContentCreatorFunction cb = sHTMLContentCreatorFunctions[aNodeType];
     60 
     61  MOZ_ASSERT(cb != NS_NewHTMLNOTUSEDElement,
     62             "Don't know how to construct tag element!");
     63 
     64  RefPtr<nsGenericHTMLElement> result = cb(std::move(aNodeInfo), aFromParser);
     65 
     66  return result.forget();
     67 }