1 files changed, 135 insertions, 0 deletions
diff --git a/dom/html/nsGenericHTMLFrameElement.h b/dom/html/nsGenericHTMLFrameElement.h
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+++ b/dom/html/nsGenericHTMLFrameElement.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 nsGenericHTMLFrameElement_h
+#define nsGenericHTMLFrameElement_h
+
+#include "mozilla/Attributes.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/nsBrowserElement.h"
+
+#include "nsFrameLoader.h"
+#include "nsGenericHTMLElement.h"
+#include "nsIDOMEventListener.h"
+#include "nsIFrameLoader.h"
+#include "nsIMozBrowserFrame.h"
+
+class nsXULElement;
+
+/**
+ * A helper class for frame elements
+ */
+class nsGenericHTMLFrameElement : public nsGenericHTMLElement,
+                                  public nsIFrameLoaderOwner,
+                                  public mozilla::nsBrowserElement,
+                                  public nsIMozBrowserFrame
+{
+public:
+  nsGenericHTMLFrameElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
+                            mozilla::dom::FromParser aFromParser)
+    : nsGenericHTMLElement(aNodeInfo)
+    , nsBrowserElement()
+    , mNetworkCreated(aFromParser == mozilla::dom::FROM_PARSER_NETWORK)
+    , mIsPrerendered(false)
+    , mBrowserFrameListenersRegistered(false)
+    , mFrameLoaderCreationDisallowed(false)
+  {
+  }
+
+  NS_DECL_ISUPPORTS_INHERITED
+
+  NS_DECL_NSIFRAMELOADEROWNER
+  NS_DECL_NSIDOMMOZBROWSERFRAME
+  NS_DECL_NSIMOZBROWSERFRAME
+
+  // nsIContent
+  virtual bool IsHTMLFocusable(bool aWithMouse, bool *aIsFocusable, int32_t *aTabIndex) override;
+  virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
+                              nsIContent* aBindingParent,
+                              bool aCompileEventHandlers) override;
+  virtual void UnbindFromTree(bool aDeep = true,
+                              bool aNullParent = true) override;
+  nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
+                   const nsAString& aValue, bool aNotify)
+  {
+    return SetAttr(aNameSpaceID, aName, nullptr, aValue, aNotify);
+  }
+  virtual nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
+                           nsIAtom* aPrefix, const nsAString& aValue,
+                           bool aNotify) override;
+  virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
+                             bool aNotify) override;
+  virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
+                                const nsAttrValue* aValue,
+                                bool aNotify) override;
+  virtual void DestroyContent() override;
+
+  nsresult CopyInnerTo(mozilla::dom::Element* aDest);
+
+  virtual int32_t TabIndexDefault() override;
+
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsGenericHTMLFrameElement,
+                                           nsGenericHTMLElement)
+
+  void SwapFrameLoaders(mozilla::dom::HTMLIFrameElement& aOtherLoaderOwner,
+                        mozilla::ErrorResult& aError);
+
+  void SwapFrameLoaders(nsXULElement& aOtherLoaderOwner,
+                        mozilla::ErrorResult& aError);
+
+  void SwapFrameLoaders(nsIFrameLoaderOwner* aOtherLoaderOwner,
+                        mozilla::ErrorResult& rv);
+
+  void PresetOpenerWindow(mozIDOMWindowProxy* aOpenerWindow,
+                          mozilla::ErrorResult& aRv);
+
+  static bool BrowserFramesEnabled();
+
+  /**
+   * Helper method to map a HTML 'scrolling' attribute value to a nsIScrollable
+   * enum value.  scrolling="no" (and its synonyms) maps to
+   * nsIScrollable::Scrollbar_Never, and anything else (including nullptr) maps
+   * to nsIScrollable::Scrollbar_Auto.
+   * @param aValue the attribute value to map or nullptr
+   * @return nsIScrollable::Scrollbar_Never or nsIScrollable::Scrollbar_Auto
+   */
+  static int32_t MapScrollingAttribute(const nsAttrValue* aValue);
+
+protected:
+  virtual ~nsGenericHTMLFrameElement();
+
+  // This doesn't really ensure a frame loader in all cases, only when
+  // it makes sense.
+  void EnsureFrameLoader();
+  nsresult LoadSrc();
+  nsIDocument* GetContentDocument(nsIPrincipal& aSubjectPrincipal);
+  nsresult GetContentDocument(nsIDOMDocument** aContentDocument);
+  already_AddRefed<nsPIDOMWindowOuter> GetContentWindow();
+
+  RefPtr<nsFrameLoader> mFrameLoader;
+  nsCOMPtr<nsPIDOMWindowOuter> mOpenerWindow;
+
+  /**
+   * True when the element is created by the parser using the
+   * NS_FROM_PARSER_NETWORK flag.
+   * If the element is modified, it may lose the flag.
+   */
+  bool mNetworkCreated;
+
+  bool mIsPrerendered;
+  bool mBrowserFrameListenersRegistered;
+  bool mFrameLoaderCreationDisallowed;
+
+  // This flag is only used by <iframe>. See HTMLIFrameElement::
+  // FullscreenFlag() for details. It is placed here so that we
+  // do not bloat any struct.
+  bool mFullscreenFlag = false;
+
+private:
+  void GetManifestURL(nsAString& aOut);
+};
+
+#endif // nsGenericHTMLFrameElement_h