145 lines
5.2 KiB
C++
145 lines
5.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "mozilla/ErrorResult.h"
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#include "mozilla/dom/nsBrowserElement.h"
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#include "nsFrameLoader.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIDOMEventListener.h"
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#include "nsIFrameLoader.h"
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#include "nsIMozBrowserFrame.h"
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class nsXULElement;
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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 nsIFrameLoaderOwner,
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public mozilla::nsBrowserElement,
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public nsIMozBrowserFrame
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{
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public:
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nsGenericHTMLFrameElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
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mozilla::dom::FromParser aFromParser)
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: nsGenericHTMLElement(aNodeInfo)
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, nsBrowserElement()
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, mNetworkCreated(aFromParser == mozilla::dom::FROM_PARSER_NETWORK)
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, mIsPrerendered(false)
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, mBrowserFrameListenersRegistered(false)
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, mFrameLoaderCreationDisallowed(false)
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, mReallyIsBrowser(false)
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{
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}
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSIFRAMELOADEROWNER
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NS_DECL_NSIDOMMOZBROWSERFRAME
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NS_DECL_NSIMOZBROWSERFRAME
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// nsIContent
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virtual bool IsHTMLFocusable(bool aWithMouse, bool *aIsFocusable, int32_t *aTabIndex) override;
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virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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bool aCompileEventHandlers) override;
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virtual void UnbindFromTree(bool aDeep = true,
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bool aNullParent = true) override;
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virtual void DestroyContent() override;
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nsresult CopyInnerTo(mozilla::dom::Element* aDest);
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virtual 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(nsXULElement& aOtherLoaderOwner,
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mozilla::ErrorResult& aError);
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void SwapFrameLoaders(nsIFrameLoaderOwner* aOtherLoaderOwner,
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mozilla::ErrorResult& rv);
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void PresetOpenerWindow(mozIDOMWindowProxy* aOpenerWindow,
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mozilla::ErrorResult& aRv);
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static bool BrowserFramesEnabled();
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/**
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* Helper method to map a HTML 'scrolling' attribute value to a nsIScrollable
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* enum value. scrolling="no" (and its synonyms) maps to
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* nsIScrollable::Scrollbar_Never, and anything else (including nullptr) maps
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* to nsIScrollable::Scrollbar_Auto.
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* @param aValue the attribute value to map or nullptr
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* @return nsIScrollable::Scrollbar_Never or nsIScrollable::Scrollbar_Auto
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*/
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static int32_t MapScrollingAttribute(const nsAttrValue* aValue);
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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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nsresult LoadSrc();
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nsIDocument* GetContentDocument(nsIPrincipal& aSubjectPrincipal);
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nsresult GetContentDocument(nsIDOMDocument** aContentDocument);
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already_AddRefed<nsPIDOMWindowOuter> GetContentWindow();
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virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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bool aNotify) override;
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virtual nsresult OnAttrSetButNotChanged(int32_t aNamespaceID, nsIAtom* aName,
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const nsAttrValueOrString& aValue,
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bool aNotify) override;
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RefPtr<nsFrameLoader> mFrameLoader;
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nsCOMPtr<nsPIDOMWindowOuter> mOpenerWindow;
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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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bool mIsPrerendered;
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bool mBrowserFrameListenersRegistered;
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bool mFrameLoaderCreationDisallowed;
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bool mReallyIsBrowser;
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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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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, nsIAtom* aName,
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const nsAttrValueOrString* aValue, bool aNotify);
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};
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#endif // nsGenericHTMLFrameElement_h
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