dom/html/HTMLPreElement.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 #include "mozilla/dom/HTMLPreElement.h"
   8 #include "mozilla/dom/HTMLPreElementBinding.h"
   9
  10 #include "mozilla/MappedDeclarations.h"
  11 #include "nsAttrValueInlines.h"
  12 #include "nsGkAtoms.h"
  13 #include "nsStyleConsts.h"
  14 #include "nsMappedAttributes.h"
  15
  16 NS_IMPL_NS_NEW_HTML_ELEMENT(Pre)
  17
  18 namespace mozilla {
  19 namespace dom {
  20
  21 HTMLPreElement::~HTMLPreElement() = default;
  22
  23 NS_IMPL_ELEMENT_CLONE(HTMLPreElement)
  24
  25 bool HTMLPreElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
  26                                     const nsAString& aValue,
  27                                     nsIPrincipal* aMaybeScriptedPrincipal,
  28                                     nsAttrValue& aResult) {
  29   if (aNamespaceID == kNameSpaceID_None) {
  30     if (aAttribute == nsGkAtoms::width) {
  31       return aResult.ParseIntValue(aValue);
  32     }
  33   }
  34
  35   return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
  36                                               aMaybeScriptedPrincipal, aResult);
  37 }
  38
  39 void HTMLPreElement::MapAttributesIntoRule(
  40     const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
  41   if (!aDecls.PropertyIsSet(eCSSProperty_white_space)) {
  42     // wrap: empty
  43     if (aAttributes->GetAttr(nsGkAtoms::wrap))
  44       aDecls.SetKeywordValue(eCSSProperty_white_space,
  45                              StyleWhiteSpace::PreWrap);
  46   }
  47
  48   nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);
  49 }
  50
  51 NS_IMETHODIMP_(bool)
  52 HTMLPreElement::IsAttributeMapped(const nsAtom* aAttribute) const {
  53   if (!mNodeInfo->Equals(nsGkAtoms::pre)) {
  54     return nsGenericHTMLElement::IsAttributeMapped(aAttribute);
  55   }
  56
  57   static const MappedAttributeEntry attributes[] = {
  58       {nsGkAtoms::wrap},
  59       {nullptr},
  60   };
  61
  62   static const MappedAttributeEntry* const map[] = {
  63       attributes,
  64       sCommonAttributeMap,
  65   };
  66
  67   return FindAttributeDependence(aAttribute, map);
  68 }
  69
  70 nsMapRuleToAttributesFunc HTMLPreElement::GetAttributeMappingFunction() const {
  71   if (!mNodeInfo->Equals(nsGkAtoms::pre)) {
  72     return nsGenericHTMLElement::GetAttributeMappingFunction();
  73   }
  74
  75   return &MapAttributesIntoRule;
  76 }
  77
  78 JSObject* HTMLPreElement::WrapNode(JSContext* aCx,
  79                                    JS::Handle<JSObject*> aGivenProto) {
  80   return HTMLPreElement_Binding::Wrap(aCx, this, aGivenProto);
  81 }
  82
  83 }  // namespace dom
  84 }  // namespace mozilla