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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/. */
/**
* This is the base class for all link classes.
*/
#ifndef mozilla_dom_Link_h__
#define mozilla_dom_Link_h__
#include "mozilla/dom/RustTypes.h"
#include "nsCOMPtr.h"
#include "nsWrapperCache.h" // For nsWrapperCache::FlagsType
class nsIURI;
namespace mozilla {
class SizeOfState;
namespace dom {
class Document;
class Element;
struct BindContext;
#define MOZILLA_DOM_LINK_IMPLEMENTATION_IID \
{0xb25edee6, 0xdd35, 0x4f8b, {0xab, 0x90, 0x66, 0xd0, 0xbd, 0x3c, 0x22, 0xd5}}
class Link : public nsISupports {
public:
NS_INLINE_DECL_STATIC_IID(MOZILLA_DOM_LINK_IMPLEMENTATION_IID)
enum class State : uint8_t {
Unvisited = 0,
Visited,
NotLink,
};
/**
* aElement is the element pointer corresponding to this link.
*/
explicit Link(Element* aElement);
/**
* This constructor is only used for testing.
*/
explicit Link();
virtual void VisitedQueryFinished(bool aVisited);
/**
* @return the URI this link is for, if available.
*/
nsIURI* GetURI() const;
/**
* Helper methods for modifying and obtaining parts of the URI of the Link.
*/
void SetProtocol(const nsACString& aProtocol);
void SetUsername(const nsACString& aUsername);
void SetPassword(const nsACString& aPassword);
void SetHost(const nsACString& aHost);
void SetHostname(const nsACString& aHostname);
void SetPathname(const nsACString& aPathname);
void SetSearch(const nsACString& aSearch);
void SetPort(const nsACString& aPort);
void SetHash(const nsACString& aHash);
void GetOrigin(nsACString& aOrigin);
void GetProtocol(nsACString& aProtocol);
void GetUsername(nsACString& aUsername);
void GetPassword(nsACString& aPassword);
void GetHost(nsACString& aHost);
void GetHostname(nsACString& aHostname);
void GetPathname(nsACString& aPathname);
void GetSearch(nsACString& aSearch);
void GetPort(nsACString& aPort);
void GetHash(nsACString& aHash);
/**
* Invalidates any link caching, and resets the state to the default.
*
* @param aNotify
* true if ResetLinkState should notify the owning document about style
* changes or false if it should not.
*/
void ResetLinkState(bool aNotify, bool aHasHref);
void ResetLinkState(bool aNotify) {
ResetLinkState(aNotify, ElementHasHref());
}
void BindToTree(const BindContext&);
void UnbindFromTree() { ResetLinkState(false); }
// This method nevers returns a null element.
Element* GetElement() const { return mElement; }
virtual size_t SizeOfExcludingThis(mozilla::SizeOfState& aState) const;
virtual bool ElementHasHref() const;
bool HasPendingLinkUpdate() const { return mHasPendingLinkUpdate; }
void SetHasPendingLinkUpdate() { mHasPendingLinkUpdate = true; }
void ClearHasPendingLinkUpdate() { mHasPendingLinkUpdate = false; }
void TriggerLinkUpdate(bool aNotify);
// To ensure correct mHasPendingLinkUpdate handling, we have this method
// similar to the one in Element. Overriders must call
// ClearHasPendingLinkUpdate().
// If you change this, change also the method in nsINode.
virtual void NodeInfoChanged(Document* aOldDoc) = 0;
protected:
virtual ~Link();
nsIURI* GetCachedURI() const { return mCachedURI; }
bool HasCachedURI() const { return !!mCachedURI; }
private:
/**
* Unregisters from History and the document so this node no longer gets
* notifications about changes to visitedness.
*/
void Unregister();
void SetLinkState(State, bool aNotify);
void SetHrefAttribute(nsIURI* aURI);
mutable nsCOMPtr<nsIURI> mCachedURI;
Element* const mElement;
bool mNeedsRegistration : 1;
bool mRegistered : 1;
bool mHasPendingLinkUpdate : 1;
const bool mHistory : 1;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_Link_h__
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