gecko-dev/dom/html/nsGenericHTMLFrameElement.h

113 строки
4.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set tw=80 expandtab softtabstop=2 ts=2 sw=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 "nsElementFrameLoaderOwner.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 nsElementFrameLoaderOwner,
public mozilla::nsBrowserElement,
public nsIMozBrowserFrame
{
public:
nsGenericHTMLFrameElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
mozilla::dom::FromParser aFromParser)
: nsGenericHTMLElement(aNodeInfo)
, nsElementFrameLoaderOwner(aFromParser)
, nsBrowserElement()
{
}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIDOMMOZBROWSERFRAME
NS_DECL_NSIMOZBROWSERFRAME
// nsIContent
virtual bool IsHTMLFocusable(bool aWithMouse, bool *aIsFocusable, int32_t *aTabIndex) MOZ_OVERRIDE;
virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers) MOZ_OVERRIDE;
virtual void UnbindFromTree(bool aDeep = true,
bool aNullParent = true) MOZ_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) MOZ_OVERRIDE;
virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify) MOZ_OVERRIDE;
virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue,
bool aNotify) MOZ_OVERRIDE;
virtual void DestroyContent() MOZ_OVERRIDE;
nsresult CopyInnerTo(mozilla::dom::Element* aDest);
virtual int32_t TabIndexDefault() MOZ_OVERRIDE;
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_NO_UNLINK(nsGenericHTMLFrameElement,
nsGenericHTMLElement)
static bool BrowserFramesEnabled();
/**
* nsIFrameLoaderOwner defines two GetFrameLoader() overloads. One
* is XPCOM style interface, the other one is C++ only. "using" pulls
* them both in, now GetFrameLoader() is ambiguous because
* nsBrowserElement also has GetFrameLoader(). Explicit redefine
* GetFrameLoader() to choose nsElementFrameLoaderOwner::GetFrameLoader()
*/
using nsElementFrameLoaderOwner::GetFrameLoader;
NS_IMETHOD_(already_AddRefed<nsFrameLoader>) GetFrameLoader() MOZ_OVERRIDE
{
return nsElementFrameLoaderOwner::GetFrameLoader();
}
/**
* 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() {}
virtual mozilla::dom::Element* ThisFrameElement() MOZ_OVERRIDE
{
return this;
}
private:
void GetManifestURLByType(nsIAtom *aAppType, nsAString& aOut);
};
#endif // nsGenericHTMLFrameElement_h