94 lines
2.7 KiB
C++
94 lines
2.7 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 "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsISupports.h"
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#include "nsIEventStateManager.h"
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#include "nsEventStateManager.h"
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static NS_DEFINE_IID(kIEventStateManagerIID, NS_IEVENTSTATEMANAGER_IID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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nsEventStateManager::nsEventStateManager() {
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mEventTarget = nsnull;
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mLastMouseOverContent = nsnull;
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NS_INIT_REFCNT();
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}
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nsEventStateManager::~nsEventStateManager() {
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NS_IF_RELEASE(mEventTarget);
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NS_IF_RELEASE(mLastMouseOverContent);
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}
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NS_IMPL_ADDREF(nsEventStateManager)
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NS_IMPL_RELEASE(nsEventStateManager)
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NS_IMPL_QUERY_INTERFACE(nsEventStateManager, kIEventStateManagerIID);
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NS_METHOD nsEventStateManager::GetEventTarget(nsISupports **aResult)
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{
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NS_PRECONDITION(nsnull != aResult, "null ptr");
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if (nsnull == aResult) {
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return NS_ERROR_NULL_POINTER;
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}
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*aResult = mEventTarget;
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NS_IF_ADDREF(mEventTarget);
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return NS_OK;
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}
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NS_METHOD nsEventStateManager::SetEventTarget(nsISupports *aSupports)
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{
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NS_IF_RELEASE(mEventTarget);
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mEventTarget = aSupports;
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NS_ADDREF(mEventTarget);
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return NS_OK;
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}
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NS_METHOD nsEventStateManager::GetLastMouseOverContent(nsIContent **aContent)
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{
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NS_PRECONDITION(nsnull != aContent, "null ptr");
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if (nsnull == aContent) {
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return NS_ERROR_NULL_POINTER;
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}
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*aContent = mLastMouseOverContent;
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NS_IF_ADDREF(mLastMouseOverContent);
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return NS_OK;
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}
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NS_METHOD nsEventStateManager::SetLastMouseOverContent(nsIContent *aContent)
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{
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NS_IF_RELEASE(mLastMouseOverContent);
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mLastMouseOverContent = aContent;
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NS_IF_ADDREF(mLastMouseOverContent);
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return NS_OK;
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}
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nsresult NS_NewEventStateManager(nsIEventStateManager** aInstancePtrResult)
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{
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NS_PRECONDITION(nsnull != aInstancePtrResult, "nsnull ptr");
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if (nsnull == aInstancePtrResult) {
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return NS_ERROR_NULL_POINTER;
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}
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nsIEventStateManager* manager = new nsEventStateManager();
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if (nsnull == manager) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return manager->QueryInterface(kIEventStateManagerIID, (void **) aInstancePtrResult);
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}
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