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-rw-r--r--dom/html/HTMLSharedObjectElement.cpp419
1 files changed, 419 insertions, 0 deletions
diff --git a/dom/html/HTMLSharedObjectElement.cpp b/dom/html/HTMLSharedObjectElement.cpp
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+++ b/dom/html/HTMLSharedObjectElement.cpp
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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/HTMLSharedObjectElement.h"
+#include "mozilla/dom/HTMLEmbedElementBinding.h"
+#include "mozilla/dom/HTMLAppletElementBinding.h"
+#include "mozilla/dom/ElementInlines.h"
+
+#include "nsIDocument.h"
+#include "nsIPluginDocument.h"
+#include "nsIDOMDocument.h"
+#include "nsThreadUtils.h"
+#include "nsIScriptError.h"
+#include "nsIWidget.h"
+#include "nsContentUtils.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(SharedObject)
+
+namespace mozilla {
+namespace dom {
+
+HTMLSharedObjectElement::HTMLSharedObjectElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
+ FromParser aFromParser)
+ : nsGenericHTMLElement(aNodeInfo),
+ mIsDoneAddingChildren(mNodeInfo->Equals(nsGkAtoms::embed) || !aFromParser)
+{
+ RegisterActivityObserver();
+ SetIsNetworkCreated(aFromParser == FROM_PARSER_NETWORK);
+
+ // By default we're in the loading state
+ AddStatesSilently(NS_EVENT_STATE_LOADING);
+}
+
+HTMLSharedObjectElement::~HTMLSharedObjectElement()
+{
+#ifdef XP_MACOSX
+ HTMLObjectElement::OnFocusBlurPlugin(this, false);
+#endif
+ UnregisterActivityObserver();
+ DestroyImageLoadingContent();
+}
+
+bool
+HTMLSharedObjectElement::IsDoneAddingChildren()
+{
+ return mIsDoneAddingChildren;
+}
+
+void
+HTMLSharedObjectElement::DoneAddingChildren(bool aHaveNotified)
+{
+ if (!mIsDoneAddingChildren) {
+ 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(HTMLSharedObjectElement)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLSharedObjectElement,
+ nsGenericHTMLElement)
+ nsObjectLoadingContent::Traverse(tmp, cb);
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_ADDREF_INHERITED(HTMLSharedObjectElement, Element)
+NS_IMPL_RELEASE_INHERITED(HTMLSharedObjectElement, Element)
+
+NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(HTMLSharedObjectElement)
+ NS_INTERFACE_TABLE_INHERITED(HTMLSharedObjectElement,
+ nsIRequestObserver,
+ nsIStreamListener,
+ nsIFrameLoaderOwner,
+ nsIObjectLoadingContent,
+ imgINotificationObserver,
+ nsIImageLoadingContent,
+ imgIOnloadBlocker,
+ nsIChannelEventSink)
+ NS_INTERFACE_TABLE_TO_MAP_SEGUE
+ NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLAppletElement, applet)
+ NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLEmbedElement, embed)
+NS_INTERFACE_MAP_END_INHERITING(nsGenericHTMLElement)
+
+NS_IMPL_ELEMENT_CLONE(HTMLSharedObjectElement)
+
+#ifdef XP_MACOSX
+
+NS_IMETHODIMP
+HTMLSharedObjectElement::PostHandleEvent(EventChainPostVisitor& aVisitor)
+{
+ HTMLObjectElement::HandleFocusBlurPlugin(this, aVisitor.mEvent);
+ return NS_OK;
+}
+
+#endif // #ifdef XP_MACOSX
+
+void
+HTMLSharedObjectElement::AsyncEventRunning(AsyncEventDispatcher* aEvent)
+{
+ nsImageLoadingContent::AsyncEventRunning(aEvent);
+}
+
+nsresult
+HTMLSharedObjectElement::BindToTree(nsIDocument *aDocument,
+ nsIContent *aParent,
+ nsIContent *aBindingParent,
+ bool aCompileEventHandlers)
+{
+ nsresult rv = nsGenericHTMLElement::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 (HTMLSharedObjectElement::*start)() =
+ &HTMLSharedObjectElement::StartObjectLoad;
+ nsContentUtils::AddScriptRunner(NewRunnableMethod(this, start));
+ }
+
+ return NS_OK;
+}
+
+void
+HTMLSharedObjectElement::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.
+ HTMLObjectElement::OnFocusBlurPlugin(this, false);
+#endif
+ nsObjectLoadingContent::UnbindFromTree(aDeep, aNullParent);
+ nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
+}
+
+
+nsresult
+HTMLSharedObjectElement::SetAttr(int32_t aNameSpaceID, nsIAtom *aName,
+ nsIAtom *aPrefix, const nsAString &aValue,
+ bool aNotify)
+{
+ nsresult rv = nsGenericHTMLElement::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 == URIAttrName()
+ && !BlockEmbedContentLoading()) {
+ return LoadObject(aNotify, true);
+ }
+
+ return NS_OK;
+}
+
+bool
+HTMLSharedObjectElement::IsHTMLFocusable(bool aWithMouse,
+ bool *aIsFocusable,
+ int32_t *aTabIndex)
+{
+ if (mNodeInfo->Equals(nsGkAtoms::embed) || Type() == eType_Plugin) {
+ // Has plugin content: let the plugin decide what to do in terms of
+ // internal focus from mouse clicks
+ if (aTabIndex) {
+ GetTabIndex(aTabIndex);
+ }
+
+ *aIsFocusable = true;
+
+ // Let the plugin decide, so override.
+ return true;
+ }
+
+ return nsGenericHTMLElement::IsHTMLFocusable(aWithMouse, aIsFocusable, aTabIndex);
+}
+
+nsIContent::IMEState
+HTMLSharedObjectElement::GetDesiredIMEState()
+{
+ if (Type() == eType_Plugin) {
+ return IMEState(IMEState::PLUGIN);
+ }
+
+ return nsGenericHTMLElement::GetDesiredIMEState();
+}
+
+NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Align, align)
+NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Alt, alt)
+NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Archive, archive)
+NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Code, code)
+NS_IMPL_URI_ATTR(HTMLSharedObjectElement, CodeBase, codebase)
+NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Height, height)
+NS_IMPL_INT_ATTR(HTMLSharedObjectElement, Hspace, hspace)
+NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Name, name)
+NS_IMPL_URI_ATTR_WITH_BASE(HTMLSharedObjectElement, Object, object, codebase)
+NS_IMPL_URI_ATTR(HTMLSharedObjectElement, Src, src)
+NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Type, type)
+NS_IMPL_INT_ATTR(HTMLSharedObjectElement, Vspace, vspace)
+NS_IMPL_STRING_ATTR(HTMLSharedObjectElement, Width, width)
+
+int32_t
+HTMLSharedObjectElement::TabIndexDefault()
+{
+ return -1;
+}
+
+bool
+HTMLSharedObjectElement::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 nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
+ aResult);
+}
+
+static void
+MapAttributesIntoRuleBase(const nsMappedAttributes *aAttributes,
+ nsRuleData *aData)
+{
+ nsGenericHTMLElement::MapImageBorderAttributeInto(aAttributes, aData);
+ nsGenericHTMLElement::MapImageMarginAttributeInto(aAttributes, aData);
+ nsGenericHTMLElement::MapImageSizeAttributesInto(aAttributes, aData);
+ nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aData);
+}
+
+static void
+MapAttributesIntoRuleExceptHidden(const nsMappedAttributes *aAttributes,
+ nsRuleData *aData)
+{
+ MapAttributesIntoRuleBase(aAttributes, aData);
+ nsGenericHTMLElement::MapCommonAttributesIntoExceptHidden(aAttributes, aData);
+}
+
+void
+HTMLSharedObjectElement::MapAttributesIntoRule(const nsMappedAttributes *aAttributes,
+ nsRuleData *aData)
+{
+ MapAttributesIntoRuleBase(aAttributes, aData);
+ nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
+}
+
+NS_IMETHODIMP_(bool)
+HTMLSharedObjectElement::IsAttributeMapped(const nsIAtom *aAttribute) const
+{
+ static const MappedAttributeEntry* const map[] = {
+ sCommonAttributeMap,
+ sImageMarginSizeAttributeMap,
+ sImageBorderAttributeMap,
+ sImageAlignAttributeMap,
+ };
+
+ return FindAttributeDependence(aAttribute, map);
+}
+
+
+nsMapRuleToAttributesFunc
+HTMLSharedObjectElement::GetAttributeMappingFunction() const
+{
+ if (mNodeInfo->Equals(nsGkAtoms::embed)) {
+ return &MapAttributesIntoRuleExceptHidden;
+ }
+
+ return &MapAttributesIntoRule;
+}
+
+void
+HTMLSharedObjectElement::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() ||
+ BlockEmbedContentLoading()) {
+ return;
+ }
+
+ LoadObject(aNotify, aForceLoad);
+ SetIsNetworkCreated(false);
+}
+
+EventStates
+HTMLSharedObjectElement::IntrinsicState() const
+{
+ return nsGenericHTMLElement::IntrinsicState() | ObjectState();
+}
+
+uint32_t
+HTMLSharedObjectElement::GetCapabilities() const
+{
+ uint32_t capabilities = eSupportPlugins | eAllowPluginSkipChannel;
+ if (mNodeInfo->Equals(nsGkAtoms::embed)) {
+ capabilities |= eSupportImages | eSupportDocuments;
+ }
+
+ return capabilities;
+}
+
+void
+HTMLSharedObjectElement::DestroyContent()
+{
+ nsObjectLoadingContent::DestroyContent();
+ nsGenericHTMLElement::DestroyContent();
+}
+
+nsresult
+HTMLSharedObjectElement::CopyInnerTo(Element* aDest)
+{
+ nsresult rv = nsGenericHTMLElement::CopyInnerTo(aDest);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (aDest->OwnerDoc()->IsStaticDocument()) {
+ CreateStaticClone(static_cast<HTMLSharedObjectElement*>(aDest));
+ }
+
+ return rv;
+}
+
+JSObject*
+HTMLSharedObjectElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+ JSObject* obj;
+ if (mNodeInfo->Equals(nsGkAtoms::applet)) {
+ obj = HTMLAppletElementBinding::Wrap(aCx, this, aGivenProto);
+ } else {
+ MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::embed));
+ obj = HTMLEmbedElementBinding::Wrap(aCx, this, aGivenProto);
+ }
+ if (!obj) {
+ return nullptr;
+ }
+ JS::Rooted<JSObject*> rootedObj(aCx, obj);
+ SetupProtoChain(aCx, rootedObj);
+ return rootedObj;
+}
+
+nsContentPolicyType
+HTMLSharedObjectElement::GetContentPolicyType() const
+{
+ if (mNodeInfo->Equals(nsGkAtoms::applet)) {
+ // We use TYPE_INTERNAL_OBJECT for applet too, since it is not exposed
+ // through RequestContext yet.
+ return nsIContentPolicy::TYPE_INTERNAL_OBJECT;
+ } else {
+ MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::embed));
+ return nsIContentPolicy::TYPE_INTERNAL_EMBED;
+ }
+}
+
+bool
+HTMLSharedObjectElement::BlockEmbedContentLoading()
+{
+ // Only check on embed elements
+ if (!IsHTMLElement(nsGkAtoms::embed)) {
+ return false;
+ }
+ // Traverse up the node tree to see if we have any ancestors that may block us
+ // from loading
+ for (nsIContent* parent = GetParent(); parent; parent = parent->GetParent()) {
+ if (parent->IsAnyOfHTMLElements(nsGkAtoms::video, nsGkAtoms::audio)) {
+ return true;
+ }
+ // If we have an ancestor that is an object with a source, it'll have an
+ // associated displayed type. If that type is not null, don't load content
+ // for the embed.
+ if (HTMLObjectElement* object = HTMLObjectElement::FromContent(parent)) {
+ uint32_t type = object->DisplayedType();
+ if (type != eType_Null) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+} // namespace dom
+} // namespace mozilla