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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 "nsFrameLoader.h"
#include "nsFrameLoaderOwner.h"
#include "nsGenericHTMLElement.h"
namespace mozilla {
class ErrorResult;
namespace dom {
class BrowserParent;
template <typename>
struct Nullable;
class WindowProxyHolder;
class XULFrameElement;
} // namespace dom
} // namespace mozilla
#define NS_GENERICHTMLFRAMEELEMENT_IID \
{0x8190db72, 0xdab0, 0x4d72, {0x94, 0x26, 0x87, 0x5f, 0x5a, 0x8a, 0x2a, 0xe5}}
/**
* A helper class for frame elements
*/
class nsGenericHTMLFrameElement : public nsGenericHTMLElement,
public nsFrameLoaderOwner {
public:
nsGenericHTMLFrameElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
mozilla::dom::FromParser aFromParser)
: nsGenericHTMLElement(std::move(aNodeInfo)),
mSrcLoadHappened(false),
mNetworkCreated(aFromParser == mozilla::dom::FROM_PARSER_NETWORK) {}
NS_DECL_ISUPPORTS_INHERITED
NS_INLINE_DECL_STATIC_IID(NS_GENERICHTMLFRAMEELEMENT_IID)
// nsIContent
bool IsHTMLFocusable(mozilla::IsFocusableFlags, bool* aIsFocusable,
int32_t* aTabIndex) override;
nsresult BindToTree(BindContext&, nsINode& aParent) override;
void UnbindFromTree(UnbindContext&) override;
void DestroyContent() override;
nsresult CopyInnerTo(mozilla::dom::Element* aDest);
int32_t TabIndexDefault() override;
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsGenericHTMLFrameElement,
nsGenericHTMLElement)
void SwapFrameLoaders(mozilla::dom::HTMLIFrameElement& aOtherLoaderOwner,
mozilla::ErrorResult& aError);
void SwapFrameLoaders(mozilla::dom::XULFrameElement& aOtherLoaderOwner,
mozilla::ErrorResult& aError);
void SwapFrameLoaders(nsFrameLoaderOwner* aOtherLoaderOwner,
mozilla::ErrorResult& rv);
/**
* Helper method to map a HTML 'scrolling' attribute value (which can be null)
* to a ScrollbarPreference value value. scrolling="no" (and its synonyms)
* map to Never, and anything else to Auto.
*/
static mozilla::ScrollbarPreference MapScrollingAttribute(const nsAttrValue*);
nsIPrincipal* GetSrcTriggeringPrincipal() const {
return mSrcTriggeringPrincipal;
}
protected:
virtual ~nsGenericHTMLFrameElement();
// This doesn't really ensure a frame loader in all cases, only when
// it makes sense.
void EnsureFrameLoader();
void LoadSrc();
Document* GetContentDocument(nsIPrincipal& aSubjectPrincipal);
mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> GetContentWindow();
virtual void AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) override;
virtual void OnAttrSetButNotChanged(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValueOrString& aValue,
bool aNotify) override;
nsCOMPtr<nsIPrincipal> mSrcTriggeringPrincipal;
/**
* True if we have already loaded the frame's original src
*/
bool mSrcLoadHappened;
/**
* 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;
// 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;
/**
* Represents the iframe is deferred loading until this element gets visible.
* We just do not load if set and leave specific elements to set it (see
* HTMLIFrameElement).
*/
bool mLazyLoading = 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, nsAtom* aName,
const nsAttrValueOrString* aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
bool aNotify);
mozilla::dom::BrowsingContext* GetContentWindowInternal();
};
#endif // nsGenericHTMLFrameElement_h
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