gecko-dev/dom/html/HTMLIFrameElement.cpp

205 строки
6.6 KiB
C++

/* -*- 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/GenericSpecifiedValuesInlines.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(aNodeInfo, aFromParser)
{
}
HTMLIFrameElement::~HTMLIFrameElement()
{
}
NS_IMPL_ISUPPORTS_INHERITED0(HTMLIFrameElement, nsGenericHTMLFrameElement)
NS_IMPL_ELEMENT_CLONE(HTMLIFrameElement)
bool
HTMLIFrameElement::ParseAttribute(int32_t aNamespaceID,
nsAtom* aAttribute,
const nsAString& aValue,
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, aResult);
}
void
HTMLIFrameElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
GenericSpecifiedValues* aData)
{
if (aData->ShouldComputeStyleStruct(NS_STYLE_INHERIT_BIT(Border))) {
// 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) {
aData->SetPixelValueIfUnset(eCSSProperty_border_top_width, 0.0f);
aData->SetPixelValueIfUnset(eCSSProperty_border_right_width, 0.0f);
aData->SetPixelValueIfUnset(eCSSProperty_border_bottom_width, 0.0f);
aData->SetPixelValueIfUnset(eCSSProperty_border_left_width, 0.0f);
}
}
}
nsGenericHTMLElement::MapImageSizeAttributesInto(aAttributes, aData);
nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aData);
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
}
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 HTMLIFrameElementBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla