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/* -*- 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
#include "mozilla/dom/BindContext.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/HTMLObjectElement.h"
#include "mozilla/dom/HTMLObjectElementBinding.h"
#include "mozilla/dom/ElementInlines.h"
#include "mozilla/dom/WindowProxyHolder.h"
#include "nsAttrValueInlines.h"
#include "nsGkAtoms.h"
#include "nsError.h"
#include "nsIContentInlines.h"
#include "nsIWidget.h"
#include "nsContentUtils.h"
#ifdef XP_MACOSX
# include "mozilla/EventDispatcher.h"
# include "mozilla/dom/Event.h"
# include "nsFocusManager.h"
#endif
namespace mozilla::dom {
HTMLObjectElement::HTMLObjectElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
FromParser aFromParser)
: nsGenericHTMLFormControlElement(std::move(aNodeInfo),
FormControlType::Object),
mIsDoneAddingChildren(!aFromParser) {
SetIsNetworkCreated(aFromParser == FROM_PARSER_NETWORK);
// <object> is always barred from constraint validation.
SetBarredFromConstraintValidation(true);
}
HTMLObjectElement::~HTMLObjectElement() = default;
bool HTMLObjectElement::IsInteractiveHTMLContent() const {
return HasAttr(nsGkAtoms::usemap) ||
nsGenericHTMLFormControlElement::IsInteractiveHTMLContent();
}
void HTMLObjectElement::DoneAddingChildren(bool aHaveNotified) {
mIsDoneAddingChildren = true;
// If we're already in a document, we need to trigger the load
// Otherwise, BindToTree takes care of that.
if (IsInComposedDoc()) {
StartObjectLoad(aHaveNotified, false);
}
}
NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLObjectElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(
HTMLObjectElement, nsGenericHTMLFormControlElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mValidity)
nsObjectLoadingContent::Traverse(tmp, cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLObjectElement,
nsGenericHTMLFormControlElement)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mValidity)
nsObjectLoadingContent::Unlink(tmp);
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(
HTMLObjectElement, nsGenericHTMLFormControlElement, nsIRequestObserver,
nsIStreamListener, nsFrameLoaderOwner, nsIObjectLoadingContent,
nsIChannelEventSink, nsIConstraintValidation)
NS_IMPL_ELEMENT_CLONE(HTMLObjectElement)
nsresult HTMLObjectElement::BindToTree(BindContext& aContext,
nsINode& aParent) {
nsresult rv = nsGenericHTMLFormControlElement::BindToTree(aContext, aParent);
NS_ENSURE_SUCCESS(rv, rv);
// If we already have all the children, start the load.
if (IsInComposedDoc() && mIsDoneAddingChildren) {
void (HTMLObjectElement::*start)() = &HTMLObjectElement::StartObjectLoad;
nsContentUtils::AddScriptRunner(
NewRunnableMethod("dom::HTMLObjectElement::BindToTree", this, start));
}
return NS_OK;
}
void HTMLObjectElement::UnbindFromTree(UnbindContext& aContext) {
nsObjectLoadingContent::UnbindFromTree();
nsGenericHTMLFormControlElement::UnbindFromTree(aContext);
}
void HTMLObjectElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) {
AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);
return nsGenericHTMLFormControlElement::AfterSetAttr(
aNamespaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
}
void HTMLObjectElement::OnAttrSetButNotChanged(
int32_t aNamespaceID, nsAtom* aName, const nsAttrValueOrString& aValue,
bool aNotify) {
AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);
return nsGenericHTMLFormControlElement::OnAttrSetButNotChanged(
aNamespaceID, aName, aValue, aNotify);
}
void HTMLObjectElement::AfterMaybeChangeAttr(int32_t aNamespaceID,
nsAtom* aName, bool aNotify) {
// if aNotify is false, we are coming from the parser or some such place;
// we'll get bound after all the attributes have been set, so we'll do the
// object load from BindToTree/DoneAddingChildren.
// Skip the LoadObject call in that case.
// We also don't want to start loading the object when we're not yet in
// a document, just in case that the caller wants to set additional
// attributes before inserting the node into the document.
if (aNamespaceID != kNameSpaceID_None || aName != nsGkAtoms::data ||
!aNotify || !IsInComposedDoc() || !mIsDoneAddingChildren ||
BlockEmbedOrObjectContentLoading()) {
return;
}
nsContentUtils::AddScriptRunner(NS_NewRunnableFunction(
"HTMLObjectElement::LoadObject",
[self = RefPtr<HTMLObjectElement>(this), aNotify]() {
if (self->IsInComposedDoc()) {
self->LoadObject(aNotify, true);
}
}));
}
bool HTMLObjectElement::IsHTMLFocusable(bool aWithMouse, bool* aIsFocusable,
int32_t* aTabIndex) {
// TODO: this should probably be managed directly by IsHTMLFocusable.
Document* doc = GetComposedDoc();
if (!doc || IsInDesignMode()) {
if (aTabIndex) {
*aTabIndex = -1;
}
*aIsFocusable = false;
return false;
}
const nsAttrValue* attrVal = mAttrs.GetAttr(nsGkAtoms::tabindex);
bool isFocusable = attrVal && attrVal->Type() == nsAttrValue::eInteger;
// This method doesn't call nsGenericHTMLFormControlElement intentionally.
if (IsEditingHost() || Type() == ObjectType::Document) {
if (aTabIndex) {
*aTabIndex = isFocusable ? attrVal->GetIntegerValue() : 0;
}
*aIsFocusable = true;
return false;
}
// TODO: this should probably be managed directly by IsHTMLFocusable.
if (aTabIndex && isFocusable) {
*aTabIndex = attrVal->GetIntegerValue();
*aIsFocusable = true;
}
return false;
}
int32_t HTMLObjectElement::TabIndexDefault() { return 0; }
Nullable<WindowProxyHolder> HTMLObjectElement::GetContentWindow(
nsIPrincipal& aSubjectPrincipal) {
Document* doc = GetContentDocument(aSubjectPrincipal);
if (doc) {
nsPIDOMWindowOuter* win = doc->GetWindow();
if (win) {
return WindowProxyHolder(win->GetBrowsingContext());
}
}
return nullptr;
}
bool HTMLObjectElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) {
if (aNamespaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::align) {
return ParseAlignValue(aValue, aResult);
}
if (ParseImageAttribute(aAttribute, aValue, aResult)) {
return true;
}
}
return nsGenericHTMLFormControlElement::ParseAttribute(
aNamespaceID, aAttribute, aValue, aMaybeScriptedPrincipal, aResult);
}
void HTMLObjectElement::MapAttributesIntoRule(
MappedDeclarationsBuilder& aBuilder) {
MapImageAlignAttributeInto(aBuilder);
MapImageBorderAttributeInto(aBuilder);
MapImageMarginAttributeInto(aBuilder);
MapImageSizeAttributesInto(aBuilder);
MapCommonAttributesInto(aBuilder);
}
NS_IMETHODIMP_(bool)
HTMLObjectElement::IsAttributeMapped(const nsAtom* aAttribute) const {
static const MappedAttributeEntry* const map[] = {
sCommonAttributeMap,
sImageMarginSizeAttributeMap,
sImageBorderAttributeMap,
sImageAlignAttributeMap,
};
return FindAttributeDependence(aAttribute, map);
}
nsMapRuleToAttributesFunc HTMLObjectElement::GetAttributeMappingFunction()
const {
return &MapAttributesIntoRule;
}
void HTMLObjectElement::StartObjectLoad(bool aNotify, bool aForce) {
// BindToTree can call us asynchronously, and we may be removed from the tree
// in the interim
if (!IsInComposedDoc() || !OwnerDoc()->IsActive() ||
BlockEmbedOrObjectContentLoading()) {
return;
}
LoadObject(aNotify, aForce);
SetIsNetworkCreated(false);
}
uint32_t HTMLObjectElement::GetCapabilities() const {
return nsObjectLoadingContent::GetCapabilities() | eFallbackIfClassIDPresent;
}
void HTMLObjectElement::DestroyContent() {
nsObjectLoadingContent::Destroy();
nsGenericHTMLFormControlElement::DestroyContent();
}
nsresult HTMLObjectElement::CopyInnerTo(Element* aDest) {
nsresult rv = nsGenericHTMLFormControlElement::CopyInnerTo(aDest);
NS_ENSURE_SUCCESS(rv, rv);
if (aDest->OwnerDoc()->IsStaticDocument()) {
CreateStaticClone(static_cast<HTMLObjectElement*>(aDest));
}
return rv;
}
JSObject* HTMLObjectElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return HTMLObjectElement_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace mozilla::dom
NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Object)