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()
  22 {
  23 }
  24
  25 NS_IMPL_ELEMENT_CLONE(HTMLPreElement)
  26
  27 bool
  28 HTMLPreElement::ParseAttribute(int32_t aNamespaceID,
  29                                nsAtom* aAttribute,
  30                                const nsAString& aValue,
  31                                nsIPrincipal* aMaybeScriptedPrincipal,
  32                                nsAttrValue& aResult)
  33 {
  34   if (aNamespaceID == kNameSpaceID_None) {
  35     if (aAttribute == nsGkAtoms::width) {
  36       return aResult.ParseIntValue(aValue);
  37     }
  38   }
  39
  40   return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
  41                                               aMaybeScriptedPrincipal, aResult);
  42 }
  43
  44 void
  45 HTMLPreElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
  46                                       MappedDeclarations& aDecls)
  47 {
  48   if (!aDecls.PropertyIsSet(eCSSProperty_white_space)) {
  49     // wrap: empty
  50     if (aAttributes->GetAttr(nsGkAtoms::wrap))
  51       aDecls.SetKeywordValue(eCSSProperty_white_space, StyleWhiteSpace::PreWrap);
  52   }
  53
  54   nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);
  55 }
  56
  57 NS_IMETHODIMP_(bool)
  58 HTMLPreElement::IsAttributeMapped(const nsAtom* aAttribute) const
  59 {
  60   if (!mNodeInfo->Equals(nsGkAtoms::pre)) {
  61     return nsGenericHTMLElement::IsAttributeMapped(aAttribute);
  62   }
  63
  64   static const MappedAttributeEntry attributes[] = {
  65     { nsGkAtoms::wrap },
  66     { nullptr },
  67   };
  68
  69   static const MappedAttributeEntry* const map[] = {
  70     attributes,
  71     sCommonAttributeMap,
  72   };
  73
  74   return FindAttributeDependence(aAttribute, map);
  75 }
  76
  77 nsMapRuleToAttributesFunc
  78 HTMLPreElement::GetAttributeMappingFunction() const
  79 {
  80   if (!mNodeInfo->Equals(nsGkAtoms::pre)) {
  81     return nsGenericHTMLElement::GetAttributeMappingFunction();
  82   }
  83
  84   return &MapAttributesIntoRule;
  85 }
  86
  87 JSObject*
  88 HTMLPreElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
  89 {
  90   return HTMLPreElement_Binding::Wrap(aCx, this, aGivenProto);
  91 }
  92
  93 } // namespace dom
  94 } // namespace mozilla