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112 lines
3.9 KiB
C++
112 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Aaron Leventhal (aaronleventhal@moonset.net)
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsPLDOMEvent_h___
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#define nsPLDOMEvent_h___
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#include "nsCOMPtr.h"
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#include "nsThreadUtils.h"
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#include "nsINode.h"
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#include "nsIDOMEvent.h"
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#include "nsString.h"
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#include "nsIDocument.h"
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/**
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* Use nsPLDOMEvent to fire a DOM event that requires safe a stable DOM.
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* For example, you may need to fire an event from within layout, but
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* want to ensure that the event handler doesn't mutate the DOM at
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* the wrong time, in order to avoid resulting instability.
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*
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* TODO: This should be renamed nsAsyncDOMEvent or something that does
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* not include the substring "PL" that refers to the old PLEvent
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* structure used with the old eventing system. See bug 334573.
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*/
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class nsPLDOMEvent : public nsRunnable {
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public:
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nsPLDOMEvent(nsINode *aEventNode, const nsAString& aEventType,
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PRBool aBubbles, PRBool aDispatchChromeOnly)
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: mEventNode(aEventNode), mEventType(aEventType),
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mBubbles(aBubbles),
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mDispatchChromeOnly(aDispatchChromeOnly)
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{ }
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nsPLDOMEvent(nsINode *aEventNode, nsIDOMEvent *aEvent)
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: mEventNode(aEventNode), mEvent(aEvent), mDispatchChromeOnly(PR_FALSE)
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{ }
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nsPLDOMEvent(nsINode *aEventNode, nsEvent &aEvent);
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NS_IMETHOD Run();
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nsresult PostDOMEvent();
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void RunDOMEventWhenSafe();
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nsCOMPtr<nsINode> mEventNode;
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nsCOMPtr<nsIDOMEvent> mEvent;
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nsString mEventType;
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PRPackedBool mBubbles;
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PRPackedBool mDispatchChromeOnly;
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};
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class nsLoadBlockingPLDOMEvent : public nsPLDOMEvent {
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public:
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nsLoadBlockingPLDOMEvent(nsINode *aEventNode, const nsAString& aEventType,
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PRBool aBubbles, PRBool aDispatchChromeOnly)
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: nsPLDOMEvent(aEventNode, aEventType, aBubbles, aDispatchChromeOnly),
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mBlockedDoc(aEventNode->GetOwnerDoc())
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{
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if (mBlockedDoc) {
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mBlockedDoc->BlockOnload();
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}
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}
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nsLoadBlockingPLDOMEvent(nsINode *aEventNode, nsIDOMEvent *aEvent)
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: nsPLDOMEvent(aEventNode, aEvent),
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mBlockedDoc(aEventNode->GetOwnerDoc())
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{
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if (mBlockedDoc) {
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mBlockedDoc->BlockOnload();
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}
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}
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~nsLoadBlockingPLDOMEvent();
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nsCOMPtr<nsIDocument> mBlockedDoc;
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};
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#endif
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