/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/dom/HTMLIFrameElement.h"

#include "mozilla/dom/HTMLIFrameElementBinding.h"

#include "mozilla/MappedDeclarations.h"

#include "nsMappedAttributes.h"

#include "nsAttrValueInlines.h"

#include "nsError.h"

#include "nsStyleConsts.h"

#include "nsContentUtils.h"

#include "nsSandboxFlags.h"

NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(IFrame)

namespace mozilla {

namespace dom {

// static

const DOMTokenListSupportedToken HTMLIFrameElement::sSupportedSandboxTokens[] = {

#define SANDBOX_KEYWORD(string, atom, flags) string,

#include "IframeSandboxKeywordList.h"

#undef SANDBOX_KEYWORD

  nullptr

};

HTMLIFrameElement::HTMLIFrameElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,

                                     FromParser aFromParser)

  : nsGenericHTMLFrameElement(std::move(aNodeInfo), aFromParser)

{

}

HTMLIFrameElement::~HTMLIFrameElement()

{

}

NS_IMPL_ELEMENT_CLONE(HTMLIFrameElement)

bool

HTMLIFrameElement::ParseAttribute(int32_t aNamespaceID,

                                  nsAtom* aAttribute,

                                  const nsAString& aValue,

                                  nsIPrincipal* aMaybeScriptedPrincipal,

                                  nsAttrValue& aResult)

{

  if (aNamespaceID == kNameSpaceID_None) {

    if (aAttribute == nsGkAtoms::marginwidth) {

      return aResult.ParseSpecialIntValue(aValue);

    }

    if (aAttribute == nsGkAtoms::marginheight) {

      return aResult.ParseSpecialIntValue(aValue);

    }

    if (aAttribute == nsGkAtoms::width) {

      return aResult.ParseSpecialIntValue(aValue);

    }

    if (aAttribute == nsGkAtoms::height) {

      return aResult.ParseSpecialIntValue(aValue);

    }

    if (aAttribute == nsGkAtoms::frameborder) {

      return ParseFrameborderValue(aValue, aResult);

    }

    if (aAttribute == nsGkAtoms::scrolling) {

      return ParseScrollingValue(aValue, aResult);

    }

    if (aAttribute == nsGkAtoms::align) {

      return ParseAlignValue(aValue, aResult);

    }

    if (aAttribute == nsGkAtoms::sandbox) {

      aResult.ParseAtomArray(aValue);

      return true;

    }

  }

  return nsGenericHTMLFrameElement::ParseAttribute(aNamespaceID, aAttribute,

                                                   aValue,

                                                   aMaybeScriptedPrincipal,

                                                   aResult);

}

void

HTMLIFrameElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,

                                         MappedDeclarations& aDecls)

{

  // frameborder: 0 | 1 (| NO | YES in quirks mode)

  // If frameborder is 0 or No, set border to 0

  // else leave it as the value set in html.css

  const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::frameborder);

  if (value && value->Type() == nsAttrValue::eEnum) {

    int32_t frameborder = value->GetEnumValue();

    if (NS_STYLE_FRAME_0 == frameborder ||

        NS_STYLE_FRAME_NO == frameborder ||

        NS_STYLE_FRAME_OFF == frameborder) {

      aDecls.SetPixelValueIfUnset(eCSSProperty_border_top_width, 0.0f);

      aDecls.SetPixelValueIfUnset(eCSSProperty_border_right_width, 0.0f);

      aDecls.SetPixelValueIfUnset(eCSSProperty_border_bottom_width, 0.0f);

      aDecls.SetPixelValueIfUnset(eCSSProperty_border_left_width, 0.0f);

    }

  }

  nsGenericHTMLElement::MapImageSizeAttributesInto(aAttributes, aDecls);

  nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aDecls);

  nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);

}

NS_IMETHODIMP_(bool)

HTMLIFrameElement::IsAttributeMapped(const nsAtom* aAttribute) const

{

  static const MappedAttributeEntry attributes[] = {

    { &nsGkAtoms::width },

    { &nsGkAtoms::height },

    { &nsGkAtoms::frameborder },

    { nullptr },

  };

  static const MappedAttributeEntry* const map[] = {

    attributes,

    sImageAlignAttributeMap,

    sCommonAttributeMap,

  };

  return FindAttributeDependence(aAttribute, map);

}

nsMapRuleToAttributesFunc

HTMLIFrameElement::GetAttributeMappingFunction() const

{

  return &MapAttributesIntoRule;

}

nsresult

HTMLIFrameElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,

                                const nsAttrValue* aValue,

                                const nsAttrValue* aOldValue,

                                nsIPrincipal* aMaybeScriptedPrincipal,

                                bool aNotify)

{

  AfterMaybeChangeAttr(aNameSpaceID, aName, aNotify);

  if (aNameSpaceID == kNameSpaceID_None) {

    if (aName == nsGkAtoms::sandbox) {

      if (mFrameLoader) {

        // If we have an nsFrameLoader, apply the new sandbox flags.

        // Since this is called after the setter, the sandbox flags have

        // alreay been updated.

        mFrameLoader->ApplySandboxFlags(GetSandboxFlags());

      }

    }

  }

  return nsGenericHTMLFrameElement::AfterSetAttr(aNameSpaceID, aName,

                                                 aValue, aOldValue,

                                                 aMaybeScriptedPrincipal,

                                                 aNotify);

}

nsresult

HTMLIFrameElement::OnAttrSetButNotChanged(int32_t aNamespaceID, nsAtom* aName,

                                          const nsAttrValueOrString& aValue,

                                          bool aNotify)

{

  AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);

  return nsGenericHTMLFrameElement::OnAttrSetButNotChanged(aNamespaceID, aName,

                                                           aValue, aNotify);

}

void

HTMLIFrameElement::AfterMaybeChangeAttr(int32_t aNamespaceID,

                                        nsAtom* aName,

                                        bool aNotify)

{

  if (aNamespaceID == kNameSpaceID_None) {

    if (aName == nsGkAtoms::srcdoc) {

      // Don't propagate errors from LoadSrc. The attribute was successfully

      // set/unset, that's what we should reflect.

      LoadSrc();

    }

  }

}

uint32_t

HTMLIFrameElement::GetSandboxFlags()

{

  const nsAttrValue* sandboxAttr = GetParsedAttr(nsGkAtoms::sandbox);

  // No sandbox attribute, no sandbox flags.

  if (!sandboxAttr) {

    return SANDBOXED_NONE;

  }

  return nsContentUtils::ParseSandboxAttributeToFlags(sandboxAttr);

}

JSObject*

HTMLIFrameElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)

{

  return HTMLIFrameElement_Binding::Wrap(aCx, this, aGivenProto);

}

} // namespace dom

} // namespace mozilla