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-rw-r--r--dom/html/HTMLObjectElement.cpp601
1 files changed, 601 insertions, 0 deletions
diff --git a/dom/html/HTMLObjectElement.cpp b/dom/html/HTMLObjectElement.cpp
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--- /dev/null
+++ b/dom/html/HTMLObjectElement.cpp
@@ -0,0 +1,601 @@
+/* -*- 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/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::SetAttr(int32_t aNameSpaceID, nsIAtom *aName,
+ nsIAtom *aPrefix, const nsAString &aValue,
+ bool aNotify)
+{
+ nsresult rv = nsGenericHTMLFormElement::SetAttr(aNameSpaceID, aName, aPrefix,
+ aValue, aNotify);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // 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 &&
+ aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::data) {
+ return LoadObject(aNotify, true);
+ }
+
+ return NS_OK;
+}
+
+nsresult
+HTMLObjectElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
+ bool aNotify)
+{
+ nsresult rv = nsGenericHTMLFormElement::UnsetAttr(aNameSpaceID,
+ aAttribute, aNotify);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // See comment in SetAttr
+ if (aNotify && IsInComposedDoc() && mIsDoneAddingChildren &&
+ aNameSpaceID == kNameSpaceID_None && aAttribute == 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)