mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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128 lines
5.0 KiB
C++
128 lines
5.0 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
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* Version 1.1 (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/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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* Mozilla Corporation
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Olli Pettay <Olli.Pettay@helsinki.fi>
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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 nsDOMEventTargetHelper_h_
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#define nsDOMEventTargetHelper_h_
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#include "nsCOMPtr.h"
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#include "nsAutoPtr.h"
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#include "nsPIDOMEventTarget.h"
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#include "nsIDOMEventListener.h"
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#include "nsIDOMNSEventTarget.h"
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#include "nsIDOMEventTarget.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsPIDOMWindow.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIEventListenerManager.h"
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#include "nsIScriptContext.h"
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class nsDOMEventListenerWrapper : public nsIDOMEventListener
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{
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public:
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nsDOMEventListenerWrapper(nsIDOMEventListener* aListener)
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: mListener(aListener) {}
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS(nsDOMEventListenerWrapper)
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NS_DECL_NSIDOMEVENTLISTENER
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nsIDOMEventListener* GetInner() { return mListener; }
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protected:
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nsCOMPtr<nsIDOMEventListener> mListener;
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};
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class nsDOMEventTargetHelper : public nsPIDOMEventTarget,
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public nsIDOMEventTarget,
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public nsIDOMNSEventTarget
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{
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public:
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nsDOMEventTargetHelper() : mLang(nsIProgrammingLanguage::JAVASCRIPT) {}
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virtual ~nsDOMEventTargetHelper() {}
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsDOMEventTargetHelper,
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nsPIDOMEventTarget)
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NS_DECL_NSIDOMNSEVENTTARGET
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NS_DECL_NSIDOMEVENTTARGET
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// nsPIDOMEventTarget
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virtual nsresult PreHandleEvent(nsEventChainPreVisitor& aVisitor);
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virtual nsresult PostHandleEvent(nsEventChainPostVisitor& aVisitor);
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virtual nsresult DispatchDOMEvent(nsEvent* aEvent, nsIDOMEvent* aDOMEvent,
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nsPresContext* aPresContext,
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nsEventStatus* aEventStatus);
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virtual nsIEventListenerManager* GetListenerManager(PRBool aCreateIfNotFound);
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virtual nsresult AddEventListenerByIID(nsIDOMEventListener *aListener,
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const nsIID& aIID);
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virtual nsresult RemoveEventListenerByIID(nsIDOMEventListener *aListener,
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const nsIID& aIID);
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virtual nsresult GetSystemEventGroup(nsIDOMEventGroup** aGroup);
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virtual nsIScriptContext* GetContextForEventHandlers(nsresult* aRv);
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PRBool HasListenersFor(const nsAString& aType)
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{
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return mListenerManager && mListenerManager->HasListenersFor(aType);
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}
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nsresult RemoveAddEventListener(const nsAString& aType,
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nsRefPtr<nsDOMEventListenerWrapper>& aCurrent,
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nsIDOMEventListener* aNew);
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nsresult GetInnerEventListener(nsRefPtr<nsDOMEventListenerWrapper>& aWrapper,
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nsIDOMEventListener** aListener);
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nsresult CheckInnerWindowCorrectness()
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{
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if (mOwner) {
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NS_ASSERTION(mOwner->IsInnerWindow(), "Should have inner window here!\n");
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nsPIDOMWindow* outer = mOwner->GetOuterWindow();
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if (!outer || outer->GetCurrentInnerWindow() != mOwner) {
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return NS_ERROR_FAILURE;
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}
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}
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return NS_OK;
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}
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protected:
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nsCOMPtr<nsIEventListenerManager> mListenerManager;
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PRUint32 mLang;
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// These may be null (native callers or xpcshell).
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nsCOMPtr<nsIScriptContext> mScriptContext;
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nsCOMPtr<nsPIDOMWindow> mOwner; // Inner window.
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};
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#endif // nsDOMEventTargetHelper_h_
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