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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/EventStates.h"
#include "mozilla/dom/BindContext.h"
#include "mozilla/dom/HTMLEmbedElement.h"
#include "mozilla/dom/HTMLEmbedElementBinding.h"
#include "mozilla/dom/ElementInlines.h"
#include "mozilla/dom/Document.h"
#include "nsIPluginDocument.h"
#include "nsThreadUtils.h"
#include "nsIWidget.h"
#include "nsContentUtils.h"
#include "nsFrameLoader.h"
#ifdef XP_MACOSX
# include "mozilla/EventDispatcher.h"
# include "mozilla/dom/Event.h"
#endif
#include "mozilla/dom/HTMLObjectElement.h"
NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Embed)
namespace mozilla {
namespace dom {
HTMLEmbedElement::HTMLEmbedElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
FromParser aFromParser)
: nsGenericHTMLElement(std::move(aNodeInfo)) {
RegisterActivityObserver();
SetIsNetworkCreated(aFromParser == FROM_PARSER_NETWORK);
// By default we're in the loading state
AddStatesSilently(NS_EVENT_STATE_LOADING);
}
HTMLEmbedElement::~HTMLEmbedElement() {
#ifdef XP_MACOSX
HTMLObjectElement::OnFocusBlurPlugin(this, false);
#endif
UnregisterActivityObserver();
nsImageLoadingContent::Destroy();
}
NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLEmbedElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLEmbedElement,
nsGenericHTMLElement)
nsObjectLoadingContent::Traverse(tmp, cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(
HTMLEmbedElement, nsGenericHTMLElement, nsIRequestObserver,
nsIStreamListener, nsFrameLoaderOwner, nsIObjectLoadingContent,
imgINotificationObserver, nsIImageLoadingContent, nsIChannelEventSink)
NS_IMPL_ELEMENT_CLONE(HTMLEmbedElement)
#ifdef XP_MACOSX
NS_IMETHODIMP
HTMLEmbedElement::PostHandleEvent(EventChainPostVisitor& aVisitor) {
HTMLObjectElement::HandleFocusBlurPlugin(this, aVisitor.mEvent);
return NS_OK;
}
#endif // #ifdef XP_MACOSX
void HTMLEmbedElement::AsyncEventRunning(AsyncEventDispatcher* aEvent) {
nsImageLoadingContent::AsyncEventRunning(aEvent);
}
nsresult HTMLEmbedElement::BindToTree(BindContext& aContext, nsINode& aParent) {
nsresult rv = nsGenericHTMLElement::BindToTree(aContext, aParent);
NS_ENSURE_SUCCESS(rv, rv);
rv = nsObjectLoadingContent::BindToTree(aContext, aParent);
NS_ENSURE_SUCCESS(rv, rv);
if (IsInComposedDoc()) {
// Don't kick off load from being bound to a plugin document - the plugin
// document will call nsObjectLoadingContent::InitializeFromChannel() for
// the initial load.
nsCOMPtr<nsIPluginDocument> pluginDoc =
do_QueryInterface(&aContext.OwnerDoc());
if (!pluginDoc) {
void (HTMLEmbedElement::*start)() = &HTMLEmbedElement::StartObjectLoad;
nsContentUtils::AddScriptRunner(
NewRunnableMethod("dom::HTMLEmbedElement::BindToTree", this, start));
}
}
return NS_OK;
}
void HTMLEmbedElement::UnbindFromTree(bool aNullParent) {
#ifdef XP_MACOSX
// When a page is reloaded (when an Document's content is removed), the
// focused element isn't necessarily sent an eBlur event. See
// nsFocusManager::ContentRemoved(). This means that a widget may think it
// still contains a focused plugin when it doesn't -- which in turn can
// disable text input in the browser window. See bug 1137229.
HTMLObjectElement::OnFocusBlurPlugin(this, false);
#endif
nsObjectLoadingContent::UnbindFromTree(aNullParent);
nsGenericHTMLElement::UnbindFromTree(aNullParent);
}
nsresult HTMLEmbedElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) {
if (aValue) {
nsresult rv = AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
}
if (aNamespaceID == kNameSpaceID_None &&
aName == nsGkAtoms::allowfullscreen && mFrameLoader) {
if (auto* bc = mFrameLoader->GetExtantBrowsingContext()) {
MOZ_ALWAYS_SUCCEEDS(bc->SetFullscreenAllowedByOwner(AllowFullscreen()));
}
}
return nsGenericHTMLElement::AfterSetAttr(
aNamespaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
}
nsresult HTMLEmbedElement::OnAttrSetButNotChanged(
int32_t aNamespaceID, nsAtom* aName, const nsAttrValueOrString& aValue,
bool aNotify) {
nsresult rv = AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
return nsGenericHTMLElement::OnAttrSetButNotChanged(aNamespaceID, aName,
aValue, aNotify);
}
nsresult HTMLEmbedElement::AfterMaybeChangeAttr(int32_t aNamespaceID,
nsAtom* aName, bool aNotify) {
if (aNamespaceID == kNameSpaceID_None) {
if (aName == nsGkAtoms::src) {
// 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.
// 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 (aNotify && IsInComposedDoc() && !BlockEmbedOrObjectContentLoading()) {
nsresult rv = LoadObject(aNotify, true);
NS_ENSURE_SUCCESS(rv, rv);
}
}
}
return NS_OK;
}
bool HTMLEmbedElement::IsHTMLFocusable(bool aWithMouse, bool* aIsFocusable,
int32_t* aTabIndex) {
// Has plugin content: let the plugin decide what to do in terms of
// internal focus from mouse clicks
if (aTabIndex) {
*aTabIndex = TabIndex();
}
*aIsFocusable = true;
// Let the plugin decide, so override.
return true;
}
nsIContent::IMEState HTMLEmbedElement::GetDesiredIMEState() {
if (Type() == eType_Plugin) {
return IMEState(IMEState::PLUGIN);
}
return nsGenericHTMLElement::GetDesiredIMEState();
}
bool HTMLEmbedElement::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 (aAttribute == nsGkAtoms::width || aAttribute == nsGkAtoms::height ||
aAttribute == nsGkAtoms::hspace || aAttribute == nsGkAtoms::vspace) {
return aResult.ParseHTMLDimension(aValue);
}
}
return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
aMaybeScriptedPrincipal, aResult);
}
static void MapAttributesIntoRuleBase(const nsMappedAttributes* aAttributes,
MappedDeclarations& aDecls) {
nsGenericHTMLElement::MapImageMarginAttributeInto(aAttributes, aDecls);
nsGenericHTMLElement::MapImageSizeAttributesInto(aAttributes, aDecls);
nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aDecls);
}
static void MapAttributesIntoRuleExceptHidden(
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
MapAttributesIntoRuleBase(aAttributes, aDecls);
nsGenericHTMLElement::MapCommonAttributesIntoExceptHidden(aAttributes,
aDecls);
}
void HTMLEmbedElement::MapAttributesIntoRule(
const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
MapAttributesIntoRuleBase(aAttributes, aDecls);
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);
}
NS_IMETHODIMP_(bool)
HTMLEmbedElement::IsAttributeMapped(const nsAtom* aAttribute) const {
static const MappedAttributeEntry* const map[] = {
sCommonAttributeMap,
sImageMarginSizeAttributeMap,
sImageBorderAttributeMap,
sImageAlignAttributeMap,
};
return FindAttributeDependence(aAttribute, map);
}
nsMapRuleToAttributesFunc HTMLEmbedElement::GetAttributeMappingFunction()
const {
return &MapAttributesIntoRuleExceptHidden;
}
void HTMLEmbedElement::StartObjectLoad(bool aNotify, bool aForceLoad) {
// BindToTree can call us asynchronously, and we may be removed from the tree
// in the interim
if (!IsInComposedDoc() || !OwnerDoc()->IsActive() ||
BlockEmbedOrObjectContentLoading()) {
return;
}
LoadObject(aNotify, aForceLoad);
SetIsNetworkCreated(false);
}
EventStates HTMLEmbedElement::IntrinsicState() const {
return nsGenericHTMLElement::IntrinsicState() | ObjectState();
}
uint32_t HTMLEmbedElement::GetCapabilities() const {
return eSupportPlugins | eAllowPluginSkipChannel | eSupportImages |
eSupportDocuments;
}
void HTMLEmbedElement::DestroyContent() {
nsObjectLoadingContent::Destroy();
nsGenericHTMLElement::DestroyContent();
}
nsresult HTMLEmbedElement::CopyInnerTo(HTMLEmbedElement* aDest) {
nsresult rv = nsGenericHTMLElement::CopyInnerTo(aDest);
NS_ENSURE_SUCCESS(rv, rv);
if (aDest->OwnerDoc()->IsStaticDocument()) {
CreateStaticClone(aDest);
}
return rv;
}
JSObject* HTMLEmbedElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
JSObject* obj;
obj = HTMLEmbedElement_Binding::Wrap(aCx, this, aGivenProto);
if (!obj) {
return nullptr;
}
JS::Rooted<JSObject*> rootedObj(aCx, obj);
SetupProtoChain(aCx, rootedObj);
return rootedObj;
}
nsContentPolicyType HTMLEmbedElement::GetContentPolicyType() const {
return nsIContentPolicy::TYPE_INTERNAL_EMBED;
}
} // namespace dom
} // namespace mozilla