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Mypal/dom/html/HTMLObjectElement.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/HTMLFormSubmission.h"
#include "mozilla/dom/HTMLObjectElement.h"
#include "mozilla/dom/HTMLObjectElementBinding.h"
#include "mozilla/dom/ElementInlines.h"
#include "nsAttrValueInlines.h"
#include "nsGkAtoms.h"
#include "nsError.h"
#include "nsIDocument.h"
#include "nsIPluginDocument.h"
#include "nsIDOMDocument.h"
#include "nsIObjectFrame.h"
#include "nsNPAPIPluginInstance.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 {
namespace dom {
HTMLObjectElement::HTMLObjectElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
FromParser aFromParser)
: nsGenericHTMLFormElement(aNodeInfo),
mIsDoneAddingChildren(!aFromParser)
{
RegisterActivityObserver();
SetIsNetworkCreated(aFromParser == FROM_PARSER_NETWORK);
// <object> is always barred from constraint validation.
SetBarredFromConstraintValidation(true);
// By default we're in the loading state
AddStatesSilently(NS_EVENT_STATE_LOADING);
}
HTMLObjectElement::~HTMLObjectElement()
{
#ifdef XP_MACOSX
OnFocusBlurPlugin(this, false);
#endif
UnregisterActivityObserver();
DestroyImageLoadingContent();
}
bool
HTMLObjectElement::IsInteractiveHTMLContent(bool aIgnoreTabindex) const
{
return HasAttr(kNameSpaceID_None, nsGkAtoms::usemap) ||
nsGenericHTMLFormElement::IsInteractiveHTMLContent(aIgnoreTabindex);
}
void
HTMLObjectElement::AsyncEventRunning(AsyncEventDispatcher* aEvent)
{
nsImageLoadingContent::AsyncEventRunning(aEvent);
}
bool
HTMLObjectElement::IsDoneAddingChildren()
{
return mIsDoneAddingChildren;
}
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);
}
}
NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLObjectElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLObjectElement,
nsGenericHTMLFormElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mValidity)
nsObjectLoadingContent::Traverse(tmp, cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLObjectElement,
nsGenericHTMLFormElement)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mValidity)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_ADDREF_INHERITED(HTMLObjectElement, Element)
NS_IMPL_RELEASE_INHERITED(HTMLObjectElement, Element)
NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(HTMLObjectElement)
NS_INTERFACE_TABLE_INHERITED(HTMLObjectElement,
nsIDOMHTMLObjectElement,
imgINotificationObserver,
nsIRequestObserver,
nsIStreamListener,
nsIFrameLoaderOwner,
nsIObjectLoadingContent,
nsIImageLoadingContent,
imgIOnloadBlocker,
nsIChannelEventSink,
nsIConstraintValidation)
NS_INTERFACE_TABLE_TAIL_INHERITING(nsGenericHTMLFormElement)
NS_IMPL_ELEMENT_CLONE(HTMLObjectElement)
// nsIConstraintValidation
NS_IMPL_NSICONSTRAINTVALIDATION(HTMLObjectElement)
#ifdef XP_MACOSX
static nsIWidget* GetWidget(Element* aElement)
{
return nsContentUtils::WidgetForDocument(aElement->OwnerDoc());
}
Element* HTMLObjectElement::sLastFocused = nullptr; // Weak
class PluginFocusSetter : public Runnable
{
public:
PluginFocusSetter(nsIWidget* aWidget, Element* aElement)
: mWidget(aWidget), mElement(aElement)
{
}
NS_IMETHOD Run() override
{
if (mElement) {
HTMLObjectElement::sLastFocused = mElement;
bool value = true;
mWidget->SetPluginFocused(value);
} else if (!HTMLObjectElement::sLastFocused) {
bool value = false;
mWidget->SetPluginFocused(value);
}
return NS_OK;
}
private:
nsCOMPtr<nsIWidget> mWidget;
nsCOMPtr<Element> mElement;
};
void
HTMLObjectElement::OnFocusBlurPlugin(Element* aElement, bool aFocus)
{
// In general we don't want to call nsIWidget::SetPluginFocused() for any
// Element that doesn't have a plugin running. But if SetPluginFocused(true)
// was just called for aElement while it had a plugin running, we want to
// make sure nsIWidget::SetPluginFocused(false) gets called for it now, even
// if aFocus is true.
if (aFocus) {
nsCOMPtr<nsIObjectLoadingContent> olc = do_QueryInterface(aElement);
bool hasRunningPlugin = false;
if (olc) {
// nsIObjectLoadingContent::GetHasRunningPlugin() fails when
// nsContentUtils::IsCallerChrome() returns false (which it can do even
// when we're processing a trusted focus event). We work around this by
// calling nsObjectLoadingContent::HasRunningPlugin() directly.
hasRunningPlugin =
static_cast<nsObjectLoadingContent*>(olc.get())->HasRunningPlugin();
}
if (!hasRunningPlugin) {
aFocus = false;
}
}
if (aFocus || aElement == sLastFocused) {
if (!aFocus) {
sLastFocused = nullptr;
}
nsIWidget* widget = GetWidget(aElement);
if (widget) {
nsContentUtils::AddScriptRunner(
new PluginFocusSetter(widget, aFocus ? aElement : nullptr));
}
}
}
void
HTMLObjectElement::HandlePluginCrashed(Element* aElement)
{
OnFocusBlurPlugin(aElement, false);
}
void
HTMLObjectElement::HandlePluginInstantiated(Element* aElement)
{
// If aElement is already focused when a plugin is instantiated, we need
// to initiate a call to nsIWidget::SetPluginFocused(true). Otherwise
// keyboard input won't work in a click-to-play plugin until aElement
// loses focus and regains it.
nsIContent* focusedContent = nullptr;
nsFocusManager *fm = nsFocusManager::GetFocusManager();
if (fm) {
focusedContent = fm->GetFocusedContent();
}
if (SameCOMIdentity(focusedContent, aElement)) {
OnFocusBlurPlugin(aElement, true);
}
}
void
HTMLObjectElement::HandleFocusBlurPlugin(Element* aElement,
WidgetEvent* aEvent)
{
if (!aEvent->IsTrusted()) {
return;
}
switch (aEvent->mMessage) {
case eFocus: {
OnFocusBlurPlugin(aElement, true);
break;
}
case eBlur: {
OnFocusBlurPlugin(aElement, false);
break;
}
default:
break;
}
}
NS_IMETHODIMP
HTMLObjectElement::PostHandleEvent(EventChainPostVisitor& aVisitor)
{
HandleFocusBlurPlugin(this, aVisitor.mEvent);
return NS_OK;
}
#endif // #ifdef XP_MACOSX
NS_IMETHODIMP
HTMLObjectElement::GetForm(nsIDOMHTMLFormElement **aForm)
{
return nsGenericHTMLFormElement::GetForm(aForm);
}
nsresult
HTMLObjectElement::BindToTree(nsIDocument *aDocument,
nsIContent *aParent,
nsIContent *aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLFormElement::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
rv = nsObjectLoadingContent::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
// 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(aDocument);
// If we already have all the children, start the load.
if (mIsDoneAddingChildren && !pluginDoc) {
void (HTMLObjectElement::*start)() = &HTMLObjectElement::StartObjectLoad;
nsContentUtils::AddScriptRunner(NewRunnableMethod(this, start));
}
return NS_OK;
}
void
HTMLObjectElement::UnbindFromTree(bool aDeep,
bool aNullParent)
{
#ifdef XP_MACOSX
// When a page is reloaded (when an nsIDocument'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.
OnFocusBlurPlugin(this, false);
#endif
nsObjectLoadingContent::UnbindFromTree(aDeep, aNullParent);
nsGenericHTMLFormElement::UnbindFromTree(aDeep, aNullParent);
}
nsresult
HTMLObjectElement::AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue, bool aNotify)
{
nsresult rv = AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
return nsGenericHTMLFormElement::AfterSetAttr(aNamespaceID, aName, aValue,
aOldValue, aNotify);
}
nsresult
HTMLObjectElement::OnAttrSetButNotChanged(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValueOrString& aValue,
bool aNotify)
{
nsresult rv = AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
return nsGenericHTMLFormElement::OnAttrSetButNotChanged(aNamespaceID, aName,
aValue, aNotify);
}
nsresult
HTMLObjectElement::AfterMaybeChangeAttr(int32_t aNamespaceID, nsIAtom* aName,
bool aNotify)
{
if (aNamespaceID == kNameSpaceID_None) {
// 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 (aNotify && IsInComposedDoc() && mIsDoneAddingChildren &&
aName == nsGkAtoms::data) {
return LoadObject(aNotify, true);
}
}
return NS_OK;
}
bool
HTMLObjectElement::IsFocusableForTabIndex()
{
nsIDocument* doc = GetComposedDoc();
if (!doc || doc->HasFlag(NODE_IS_EDITABLE)) {
return false;
}
return IsEditableRoot() ||
(Type() == eType_Document &&
nsContentUtils::IsSubDocumentTabbable(this));
}
bool
HTMLObjectElement::IsHTMLFocusable(bool aWithMouse,
bool *aIsFocusable, int32_t *aTabIndex)
{
// TODO: this should probably be managed directly by IsHTMLFocusable.
// See bug 597242.
nsIDocument *doc = GetComposedDoc();
if (!doc || doc->HasFlag(NODE_IS_EDITABLE)) {
if (aTabIndex) {
GetTabIndex(aTabIndex);
}
*aIsFocusable = false;
return false;
}
// This method doesn't call nsGenericHTMLFormElement intentionally.
// TODO: It should probably be changed when bug 597242 will be fixed.
if (Type() == eType_Plugin || IsEditableRoot() ||
(Type() == eType_Document && nsContentUtils::IsSubDocumentTabbable(this))) {
// Has plugin content: let the plugin decide what to do in terms of
// internal focus from mouse clicks
if (aTabIndex) {
GetTabIndex(aTabIndex);
}
*aIsFocusable = true;
return false;
}
// TODO: this should probably be managed directly by IsHTMLFocusable.
// See bug 597242.
const nsAttrValue* attrVal = mAttrsAndChildren.GetAttr(nsGkAtoms::tabindex);
*aIsFocusable = attrVal && attrVal->Type() == nsAttrValue::eInteger;
if (aTabIndex && *aIsFocusable) {
*aTabIndex = attrVal->GetIntegerValue();
}
return false;
}
nsIContent::IMEState
HTMLObjectElement::GetDesiredIMEState()
{
if (Type() == eType_Plugin) {
return IMEState(IMEState::PLUGIN);
}
return nsGenericHTMLFormElement::GetDesiredIMEState();
}
NS_IMETHODIMP
HTMLObjectElement::Reset()
{
return NS_OK;
}
NS_IMETHODIMP
HTMLObjectElement::SubmitNamesValues(HTMLFormSubmission *aFormSubmission)
{
nsAutoString name;
if (!GetAttr(kNameSpaceID_None, nsGkAtoms::name, name)) {
// No name, don't submit.
return NS_OK;
}
nsIFrame* frame = GetPrimaryFrame();
nsIObjectFrame *objFrame = do_QueryFrame(frame);
if (!objFrame) {
// No frame, nothing to submit.
return NS_OK;
}
RefPtr<nsNPAPIPluginInstance> pi;
objFrame->GetPluginInstance(getter_AddRefs(pi));
if (!pi)
return NS_OK;
nsAutoString value;
nsresult rv = pi->GetFormValue(value);
NS_ENSURE_SUCCESS(rv, rv);
return aFormSubmission->AddNameValuePair(name, value);
}
NS_IMPL_STRING_ATTR(HTMLObjectElement, Align, align)
NS_IMPL_STRING_ATTR(HTMLObjectElement, Archive, archive)
NS_IMPL_STRING_ATTR(HTMLObjectElement, Border, border)
NS_IMPL_STRING_ATTR(HTMLObjectElement, Code, code)
NS_IMPL_URI_ATTR(HTMLObjectElement, CodeBase, codebase)
NS_IMPL_STRING_ATTR(HTMLObjectElement, CodeType, codetype)
NS_IMPL_URI_ATTR_WITH_BASE(HTMLObjectElement, Data, data, codebase)
NS_IMPL_BOOL_ATTR(HTMLObjectElement, Declare, declare)
NS_IMPL_STRING_ATTR(HTMLObjectElement, Height, height)
NS_IMPL_INT_ATTR(HTMLObjectElement, Hspace, hspace)
NS_IMPL_STRING_ATTR(HTMLObjectElement, Name, name)
NS_IMPL_STRING_ATTR(HTMLObjectElement, Standby, standby)
NS_IMPL_STRING_ATTR(HTMLObjectElement, Type, type)
NS_IMPL_STRING_ATTR(HTMLObjectElement, UseMap, usemap)
NS_IMPL_INT_ATTR(HTMLObjectElement, Vspace, vspace)
NS_IMPL_STRING_ATTR(HTMLObjectElement, Width, width)
int32_t
HTMLObjectElement::TabIndexDefault()
{
return IsFocusableForTabIndex() ? 0 : -1;
}
NS_IMETHODIMP
HTMLObjectElement::GetContentDocument(nsIDOMDocument **aContentDocument)
{
NS_ENSURE_ARG_POINTER(aContentDocument);
nsCOMPtr<nsIDOMDocument> domDoc =
do_QueryInterface(GetContentDocument(*nsContentUtils::SubjectPrincipal()));
domDoc.forget(aContentDocument);
return NS_OK;
}
nsPIDOMWindowOuter*
HTMLObjectElement::GetContentWindow(nsIPrincipal& aSubjectPrincipal)
{
nsIDocument* doc = GetContentDocument(aSubjectPrincipal);
if (doc) {
return doc->GetWindow();
}
return nullptr;
}
bool
HTMLObjectElement::ParseAttribute(int32_t aNamespaceID,
nsIAtom *aAttribute,
const nsAString &aValue,
nsAttrValue &aResult)
{
if (aNamespaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::align) {
return ParseAlignValue(aValue, aResult);
}
if (ParseImageAttribute(aAttribute, aValue, aResult)) {
return true;
}
}
return nsGenericHTMLFormElement::ParseAttribute(aNamespaceID, aAttribute,
aValue, aResult);
}
void
HTMLObjectElement::MapAttributesIntoRule(const nsMappedAttributes *aAttributes,
nsRuleData *aData)
{
nsGenericHTMLFormElement::MapImageAlignAttributeInto(aAttributes, aData);
nsGenericHTMLFormElement::MapImageBorderAttributeInto(aAttributes, aData);
nsGenericHTMLFormElement::MapImageMarginAttributeInto(aAttributes, aData);
nsGenericHTMLFormElement::MapImageSizeAttributesInto(aAttributes, aData);
nsGenericHTMLFormElement::MapCommonAttributesInto(aAttributes, aData);
}
NS_IMETHODIMP_(bool)
HTMLObjectElement::IsAttributeMapped(const nsIAtom *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)
{
// BindToTree can call us asynchronously, and we may be removed from the tree
// in the interim
if (!IsInComposedDoc() || !OwnerDoc()->IsActive()) {
return;
}
LoadObject(aNotify);
SetIsNetworkCreated(false);
}
EventStates
HTMLObjectElement::IntrinsicState() const
{
return nsGenericHTMLFormElement::IntrinsicState() | ObjectState();
}
uint32_t
HTMLObjectElement::GetCapabilities() const
{
return nsObjectLoadingContent::GetCapabilities() | eSupportClassID;
}
void
HTMLObjectElement::DestroyContent()
{
nsObjectLoadingContent::DestroyContent();
nsGenericHTMLFormElement::DestroyContent();
}
nsresult
HTMLObjectElement::CopyInnerTo(Element* aDest)
{
nsresult rv = nsGenericHTMLFormElement::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)
{
JS::Rooted<JSObject*> obj(aCx,
HTMLObjectElementBinding::Wrap(aCx, this, aGivenProto));
if (!obj) {
return nullptr;
}
SetupProtoChain(aCx, obj);
return obj;
}
} // namespace dom
} // namespace mozilla
NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Object)
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