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74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#ifndef nsILinkHandler_h___
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#define nsILinkHandler_h___
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#include "nsweb.h"
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#include "nsISupports.h"
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class nsIFrame;
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class nsIPostData;
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struct nsGUIEvent;
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// Interface ID for nsILinkHandler
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#define NS_ILINKHANDLER_IID \
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{ 0xa6cf905b, 0x15b3, 0x11d2,{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
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enum nsLinkState {
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eLinkState_Unvisited = 0,
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eLinkState_Visited = 1,
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eLinkState_OutOfDate = 2, // visited, but the cache is stale
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eLinkState_Active = 3, // mouse is down on link
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eLinkState_Hover = 4 // mouse is hovering over link
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};
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/**
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* Interface used for handling clicks on links
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*/
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class nsILinkHandler : public nsISupports {
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public:
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/**
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* Process a click on a link. aFrame is the frame that contains the
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* linked content. aURLSpec is an absolute url spec that defines the
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* destination for the link. aTargetSpec indicates where the link is
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* targeted (it may be an empty string).
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*/
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NS_IMETHOD OnLinkClick(nsIFrame* aFrame,
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const PRUnichar* aURLSpec,
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const PRUnichar* aTargetSpec,
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nsIPostData* aPostData = 0) = 0;
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/**
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* Process a mouse-over a link. aFrame is the frame that contains the
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* linked content. aURLSpec is an absolute url spec that defines the
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* destination for the link. aTargetSpec indicates where the link is
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* targeted (it may be an empty string).
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*/
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NS_IMETHOD OnOverLink(nsIFrame* aFrame,
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const PRUnichar* aURLSpec,
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const PRUnichar* aTargetSpec) = 0;
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/**
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* Get the state of a link to a given absolute URL
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*/
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NS_IMETHOD GetLinkState(const PRUnichar* aURLSpec, nsLinkState& aState) = 0;
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};
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#endif /* nsILinkHandler_h___ */
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