147 lines
5 KiB
C++
147 lines
5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsGenericHTMLFrameElement_h
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#define nsGenericHTMLFrameElement_h
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#include "mozilla/Attributes.h"
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#include "nsFrameLoader.h"
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#include "nsFrameLoaderOwner.h"
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#include "nsGenericHTMLElement.h"
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namespace mozilla {
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class ErrorResult;
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namespace dom {
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class BrowserParent;
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template <typename>
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struct Nullable;
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class WindowProxyHolder;
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class XULFrameElement;
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} // namespace dom
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} // namespace mozilla
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#define NS_GENERICHTMLFRAMEELEMENT_IID \
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{0x8190db72, 0xdab0, 0x4d72, {0x94, 0x26, 0x87, 0x5f, 0x5a, 0x8a, 0x2a, 0xe5}}
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/**
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* A helper class for frame elements
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*/
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class nsGenericHTMLFrameElement : public nsGenericHTMLElement,
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public nsFrameLoaderOwner {
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public:
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nsGenericHTMLFrameElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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mozilla::dom::FromParser aFromParser)
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: nsGenericHTMLElement(std::move(aNodeInfo)),
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mSrcLoadHappened(false),
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mNetworkCreated(aFromParser == mozilla::dom::FROM_PARSER_NETWORK) {}
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NS_DECL_ISUPPORTS_INHERITED
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NS_INLINE_DECL_STATIC_IID(NS_GENERICHTMLFRAMEELEMENT_IID)
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// nsIContent
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bool IsHTMLFocusable(mozilla::IsFocusableFlags, bool* aIsFocusable,
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int32_t* aTabIndex) override;
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nsresult BindToTree(BindContext&, nsINode& aParent) override;
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void UnbindFromTree(UnbindContext&) override;
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void DestroyContent() override;
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nsresult CopyInnerTo(mozilla::dom::Element* aDest);
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int32_t TabIndexDefault() override;
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsGenericHTMLFrameElement,
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nsGenericHTMLElement)
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void SwapFrameLoaders(mozilla::dom::HTMLIFrameElement& aOtherLoaderOwner,
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mozilla::ErrorResult& aError);
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void SwapFrameLoaders(mozilla::dom::XULFrameElement& aOtherLoaderOwner,
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mozilla::ErrorResult& aError);
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void SwapFrameLoaders(nsFrameLoaderOwner* aOtherLoaderOwner,
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mozilla::ErrorResult& rv);
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/**
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* Helper method to map a HTML 'scrolling' attribute value (which can be null)
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* to a ScrollbarPreference value value. scrolling="no" (and its synonyms)
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* map to Never, and anything else to Auto.
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*/
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static mozilla::ScrollbarPreference MapScrollingAttribute(const nsAttrValue*);
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nsIPrincipal* GetSrcTriggeringPrincipal() const {
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return mSrcTriggeringPrincipal;
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}
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protected:
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virtual ~nsGenericHTMLFrameElement();
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// This doesn't really ensure a frame loader in all cases, only when
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// it makes sense.
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void EnsureFrameLoader();
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void LoadSrc();
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Document* GetContentDocument(nsIPrincipal& aSubjectPrincipal);
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mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> GetContentWindow();
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virtual void AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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nsIPrincipal* aSubjectPrincipal,
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bool aNotify) override;
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virtual void OnAttrSetButNotChanged(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValueOrString& aValue,
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bool aNotify) override;
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nsCOMPtr<nsIPrincipal> mSrcTriggeringPrincipal;
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/**
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* True if we have already loaded the frame's original src
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*/
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bool mSrcLoadHappened;
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/**
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* True when the element is created by the parser using the
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* NS_FROM_PARSER_NETWORK flag.
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* If the element is modified, it may lose the flag.
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*/
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bool mNetworkCreated;
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// This flag is only used by <iframe>. See HTMLIFrameElement::
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// FullscreenFlag() for details. It is placed here so that we
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// do not bloat any struct.
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bool mFullscreenFlag = false;
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/**
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* Represents the iframe is deferred loading until this element gets visible.
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* We just do not load if set and leave specific elements to set it (see
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* HTMLIFrameElement).
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*/
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bool mLazyLoading = false;
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private:
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void GetManifestURL(nsAString& aOut);
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/**
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* This function is called by AfterSetAttr and OnAttrSetButNotChanged.
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* It will be called whether the value is being set or unset.
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*
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* @param aNamespaceID the namespace of the attr being set
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* @param aName the localname of the attribute being set
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* @param aValue the value being set or null if the value is being unset
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* @param aNotify Whether we plan to notify document observers.
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*/
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void AfterMaybeChangeAttr(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValueOrString* aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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bool aNotify);
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mozilla::dom::BrowsingContext* GetContentWindowInternal();
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};
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#endif // nsGenericHTMLFrameElement_h
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