gecko-dev/dom/html/HTMLIFrameElement.cpp

254 строки
8.6 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 "nsMappedAttributes.h"
#include "nsAttrValueInlines.h"
#include "nsError.h"
#include "nsRuleData.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_INHERITED(HTMLIFrameElement, nsGenericHTMLFrameElement,
nsIDOMHTMLIFrameElement)
NS_IMPL_ELEMENT_CLONE(HTMLIFrameElement)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, Align, align)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, FrameBorder, frameborder)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, Height, height)
NS_IMPL_URI_ATTR(HTMLIFrameElement, LongDesc, longdesc)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, MarginHeight, marginheight)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, MarginWidth, marginwidth)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, Name, name)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, Scrolling, scrolling)
NS_IMPL_URI_ATTR(HTMLIFrameElement, Src, src)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, Width, width)
NS_IMPL_BOOL_ATTR(HTMLIFrameElement, AllowFullscreen, allowfullscreen)
NS_IMPL_STRING_ATTR(HTMLIFrameElement, Srcdoc, srcdoc)
NS_IMETHODIMP
HTMLIFrameElement::GetContentDocument(nsIDOMDocument** aContentDocument)
{
return nsGenericHTMLFrameElement::GetContentDocument(aContentDocument);
}
bool
HTMLIFrameElement::ParseAttribute(int32_t aNamespaceID,
nsIAtom* 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,
nsRuleData* aData)
{
if (aData->mSIDs & 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) {
nsCSSValue* borderLeftWidth = aData->ValueForBorderLeftWidth();
if (borderLeftWidth->GetUnit() == eCSSUnit_Null)
borderLeftWidth->SetFloatValue(0.0f, eCSSUnit_Pixel);
nsCSSValue* borderRightWidth = aData->ValueForBorderRightWidth();
if (borderRightWidth->GetUnit() == eCSSUnit_Null)
borderRightWidth->SetFloatValue(0.0f, eCSSUnit_Pixel);
nsCSSValue* borderTopWidth = aData->ValueForBorderTopWidth();
if (borderTopWidth->GetUnit() == eCSSUnit_Null)
borderTopWidth->SetFloatValue(0.0f, eCSSUnit_Pixel);
nsCSSValue* borderBottomWidth = aData->ValueForBorderBottomWidth();
if (borderBottomWidth->GetUnit() == eCSSUnit_Null)
borderBottomWidth->SetFloatValue(0.0f, eCSSUnit_Pixel);
}
}
}
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Position)) {
// width: value
nsCSSValue* width = aData->ValueForWidth();
if (width->GetUnit() == eCSSUnit_Null) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
if (value && value->Type() == nsAttrValue::eInteger)
width->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
else if (value && value->Type() == nsAttrValue::ePercent)
width->SetPercentValue(value->GetPercentValue());
}
// height: value
nsCSSValue* height = aData->ValueForHeight();
if (height->GetUnit() == eCSSUnit_Null) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::height);
if (value && value->Type() == nsAttrValue::eInteger)
height->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
else if (value && value->Type() == nsAttrValue::ePercent)
height->SetPercentValue(value->GetPercentValue());
}
}
nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aData);
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
}
NS_IMETHODIMP_(bool)
HTMLIFrameElement::IsAttributeMapped(const nsIAtom* 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::SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
nsIAtom* aPrefix, const nsAString& aValue,
bool aNotify)
{
nsresult rv = nsGenericHTMLFrameElement::SetAttr(aNameSpaceID, aName,
aPrefix, aValue, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::srcdoc) {
// Don't propagate error here. The attribute was successfully set, that's
// what we should reflect.
LoadSrc();
}
return NS_OK;
}
nsresult
HTMLIFrameElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue,
bool aNotify)
{
if (aName == nsGkAtoms::sandbox &&
aNameSpaceID == kNameSpaceID_None && 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,
aNotify);
}
nsresult
HTMLIFrameElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify)
{
// Invoke on the superclass.
nsresult rv = nsGenericHTMLFrameElement::UnsetAttr(aNameSpaceID, aAttribute, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
if (aNameSpaceID == kNameSpaceID_None &&
aAttribute == nsGkAtoms::srcdoc) {
// Fall back to the src attribute, if any
LoadSrc();
}
return NS_OK;
}
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