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-rw-r--r--dom/html/HTMLShadowElement.h96
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diff --git a/dom/html/HTMLShadowElement.h b/dom/html/HTMLShadowElement.h
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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/. */
+
+#ifndef mozilla_dom_HTMLShadowElement_h__
+#define mozilla_dom_HTMLShadowElement_h__
+
+#include "nsGenericHTMLElement.h"
+
+namespace mozilla {
+namespace dom {
+
+class HTMLShadowElement final : public nsGenericHTMLElement,
+ public nsStubMutationObserver
+{
+public:
+ explicit HTMLShadowElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
+
+ // nsISupports
+ NS_DECL_ISUPPORTS_INHERITED
+
+ NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
+ NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
+ NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
+
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLShadowElement,
+ nsGenericHTMLElement)
+
+ static HTMLShadowElement* FromContent(nsIContent* aContent)
+ {
+ if (aContent->IsHTMLShadowElement()) {
+ return static_cast<HTMLShadowElement*>(aContent);
+ }
+
+ return nullptr;
+ }
+
+ virtual bool IsHTMLShadowElement() const override { return true; }
+
+ virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override;
+
+ virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
+ nsIContent* aBindingParent,
+ bool aCompileEventHandlers) override;
+
+ virtual void UnbindFromTree(bool aDeep = true,
+ bool aNullParent = true) override;
+
+ bool IsInsertionPoint() { return mIsInsertionPoint; }
+
+ /**
+ * Sets the ShadowRoot that will be rendered in place of
+ * this shadow insertion point.
+ */
+ void SetProjectedShadow(ShadowRoot* aProjectedShadow);
+
+ /**
+ * Distributes a single explicit child of the projected ShadowRoot
+ * to relevant insertion points.
+ */
+ void DistributeSingleNode(nsIContent* aContent);
+
+ /**
+ * Removes a single explicit child of the projected ShadowRoot
+ * from relevant insertion points.
+ */
+ void RemoveDistributedNode(nsIContent* aContent);
+
+ /**
+ * Distributes all the explicit children of the projected ShadowRoot
+ * to the shadow insertion point in the younger ShadowRoot and
+ * the content insertion point of the parent node's ShadowRoot.
+ */
+ void DistributeAllNodes();
+
+ // WebIDL methods.
+ ShadowRoot* GetOlderShadowRoot() { return mProjectedShadow; }
+
+protected:
+ virtual ~HTMLShadowElement();
+
+ virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ // The ShadowRoot that will be rendered in place of this shadow insertion point.
+ RefPtr<ShadowRoot> mProjectedShadow;
+
+ bool mIsInsertionPoint;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_HTMLShadowElement_h__
+