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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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)
, mReallyIsBrowser(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;
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();
virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
bool aNotify) override;
virtual nsresult OnAttrSetButNotChanged(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValueOrString& aValue,
bool aNotify) override;
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;
bool mReallyIsBrowser;
// 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);
/**
* This function is called by AfterSetAttr and OnAttrSetButNotChanged.
* It will be called whether the value is being set or unset.
*
* @param aNamespaceID the namespace of the attr being set
* @param aName the localname of the attribute being set
* @param aValue the value being set or null if the value is being unset
* @param aNotify Whether we plan to notify document observers.
*/
void AfterMaybeChangeAttr(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValueOrString* aValue, bool aNotify);
};
#endif // nsGenericHTMLFrameElement_h
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