1 files changed, 309 insertions, 0 deletions
diff --git a/dom/html/HTMLObjectElement.cpp b/dom/html/HTMLObjectElement.cpp
new file mode 100644
index 0000000000..fa06003b24
--- /dev/null
+++ b/dom/html/HTMLObjectElement.cpp
@@ -0,0 +1,309 @@
+/* -*- 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/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) {
+  RegisterActivityObserver();
+  SetIsNetworkCreated(aFromParser == FROM_PARSER_NETWORK);
+
+  // <object> is always barred from constraint validation.
+  SetBarredFromConstraintValidation(true);
+
+  // By default we're in the loading state
+  AddStatesSilently(ElementState::LOADING);
+}
+
+HTMLObjectElement::~HTMLObjectElement() {
+  UnregisterActivityObserver();
+  nsImageLoadingContent::Destroy();
+}
+
+bool HTMLObjectElement::IsInteractiveHTMLContent() const {
+  return HasAttr(kNameSpaceID_None, nsGkAtoms::usemap) ||
+         nsGenericHTMLFormControlElement::IsInteractiveHTMLContent();
+}
+
+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, 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,
+    imgINotificationObserver, nsIRequestObserver, nsIStreamListener,
+    nsFrameLoaderOwner, nsIObjectLoadingContent, nsIImageLoadingContent,
+    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);
+
+  rv = nsObjectLoadingContent::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(bool aNullParent) {
+  nsObjectLoadingContent::UnbindFromTree(aNullParent);
+  nsGenericHTMLFormControlElement::UnbindFromTree(aNullParent);
+}
+
+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.
+  // See bug 597242.
+  Document* doc = GetComposedDoc();
+  if (!doc || IsInDesignMode()) {
+    if (aTabIndex) {
+      *aTabIndex = -1;
+    }
+
+    *aIsFocusable = false;
+    return false;
+  }
+
+  // Plugins that show the empty fallback should not accept focus.
+  if (Type() == eType_Fallback) {
+    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.
+  // TODO: It should probably be changed when bug 597242 will be fixed.
+  if (IsEditableRoot() || Type() == eType_Document ||
+      Type() == eType_FakePlugin) {
+    if (aTabIndex) {
+      *aTabIndex = isFocusable ? attrVal->GetIntegerValue() : 0;
+    }
+
+    *aIsFocusable = true;
+    return false;
+  }
+
+  // TODO: this should probably be managed directly by IsHTMLFocusable.
+  // See bug 597242.
+  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(
+    const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
+  nsGenericHTMLFormControlElement::MapImageAlignAttributeInto(aAttributes,
+                                                              aDecls);
+  nsGenericHTMLFormControlElement::MapImageBorderAttributeInto(aAttributes,
+                                                               aDecls);
+  nsGenericHTMLFormControlElement::MapImageMarginAttributeInto(aAttributes,
+                                                               aDecls);
+  nsGenericHTMLFormControlElement::MapImageSizeAttributesInto(aAttributes,
+                                                              aDecls);
+  nsGenericHTMLFormControlElement::MapCommonAttributesInto(aAttributes, aDecls);
+}
+
+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);
+}
+
+ElementState HTMLObjectElement::IntrinsicState() const {
+  return nsGenericHTMLFormControlElement::IntrinsicState() | ObjectState();
+}
+
+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)