gecko-dev/docshell/base/nsILinkHandler.h

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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 nsILinkHandler_h___
#define nsILinkHandler_h___
#include "nsISupports.h"
#include "mozilla/EventForwards.h"
class nsIContent;
class nsIContentSecurityPolicy;
class nsIDocShell;
class nsIInputStream;
class nsIRequest;
#define NS_ILINKHANDLER_IID \
{ \
0xceb9aade, 0x43da, 0x4f1a, { \
0xac, 0x8a, 0xc7, 0x09, 0xfb, 0x22, 0x46, 0x64 \
} \
}
/**
* Interface used for handling clicks on links
*/
class nsILinkHandler : public nsISupports {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_ILINKHANDLER_IID)
/**
* Process a click on a link.
*
* @param aContent the content for the frame that generated the trigger
* @param aURI a URI object that defines the destination for the link
* @param aTargetSpec indicates where the link is targeted (may be an empty
* string)
* @param aFileName non-null when the link should be downloaded as the given
* file
* @param aPostDataStream the POST data to send
* @param aHeadersDataStream ???
* @param aIsTrusted false if the triggerer is an untrusted DOM event.
* @param aTriggeringPrincipal, if not passed explicitly we fall back to
* the document's principal.
* @param aCsp, the CSP to be used for the load, that is the CSP of the
* entity responsible for causing the load to occur. Most likely
* this is the CSP of the document that started the load. In case
* aCsp was not passed explicitly we fall back to using
* aContent's document's CSP if that document holds any.
*/
NS_IMETHOD OnLinkClick(nsIContent* aContent, nsIURI* aURI,
const nsAString& aTargetSpec,
const nsAString& aFileName,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream,
bool aIsUserTriggered, bool aIsTrusted,
nsIPrincipal* aTriggeringPrincipal,
nsIContentSecurityPolicy* aCsp) = 0;
/**
* Process a click on a link.
*
* Works the same as OnLinkClick() except it happens immediately rather than
* through an event.
*
* @param aContent the content for the frame that generated the trigger
* @param aURI a URI obect that defines the destination for the link
* @param aTargetSpec indicates where the link is targeted (may be an empty
* string)
* @param aFileName non-null when the link should be downloaded as the given
* file
* @param aPostDataStream the POST data to send
* @param aHeadersDataStream ???
* @param aNoOpenerImplied if the link implies "noopener"
* @param aDocShell (out-param) the DocShell that the request was opened on
* @param aRequest the request that was opened
* @param aTriggeringPrincipal, if not passed explicitly we fall back to
* the document's principal.
* @param aCsp, the CSP to be used for the load, that is the CSP of the
* entity responsible for causing the load to occur. Most likely
* this is the CSP of the document that started the load. In case
* aCsp was not passed explicitly we fall back to using
* aContent's document's CSP if that document holds any.
*/
NS_IMETHOD OnLinkClickSync(
nsIContent* aContent, nsIURI* aURI, const nsAString& aTargetSpec,
const nsAString& aFileName, nsIInputStream* aPostDataStream = 0,
nsIInputStream* aHeadersDataStream = 0, bool aNoOpenerImplied = false,
nsIDocShell** aDocShell = 0, nsIRequest** aRequest = 0,
bool aIsUserTriggered = false,
nsIPrincipal* aTriggeringPrincipal = nullptr,
nsIContentSecurityPolicy* aCsp = nullptr) = 0;
/**
* Process a mouse-over a link.
*
* @param aContent the linked content.
* @param aURI an URI object that defines the destination for the link
* @param aTargetSpec indicates where the link is targeted (it may be an empty
* string)
*/
NS_IMETHOD OnOverLink(nsIContent* aContent, nsIURI* aURLSpec,
const nsAString& aTargetSpec) = 0;
/**
* Process the mouse leaving a link.
*/
NS_IMETHOD OnLeaveLink() = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsILinkHandler, NS_ILINKHANDLER_IID)
#endif /* nsILinkHandler_h___ */