155 lines
5.1 KiB
C++
155 lines
5.1 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: NPL 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 Netscape 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/NPL/
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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 Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Original Author: David W. Hyatt (hyatt@netscape.com)
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*
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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 NPL, 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsCOMPtr.h"
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#include "nsIXBLPrototypeHandler.h"
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#include "nsXBLDragHandler.h"
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#include "nsIContent.h"
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#include "nsIAtom.h"
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#include "nsIDOMMouseEvent.h"
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#include "nsINameSpaceManager.h"
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#include "nsIScriptContext.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIJSEventListener.h"
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#include "nsIController.h"
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#include "nsIControllers.h"
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#include "nsIDOMXULElement.h"
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#include "nsIDOMNSHTMLTextAreaElement.h"
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#include "nsIDOMNSHTMLInputElement.h"
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#include "nsIDOMText.h"
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#include "nsIEventListenerManager.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsXBLBinding.h"
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#include "nsIPrivateDOMEvent.h"
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#include "nsIDOMWindowInternal.h"
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#include "nsIPref.h"
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#include "nsIServiceManager.h"
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#include "nsIURI.h"
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#include "nsXPIDLString.h"
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PRUint32 nsXBLDragHandler::gRefCnt = 0;
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nsIAtom* nsXBLDragHandler::kDragEnterAtom = nsnull;
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nsIAtom* nsXBLDragHandler::kDragOverAtom = nsnull;
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nsIAtom* nsXBLDragHandler::kDragExitAtom = nsnull;
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nsIAtom* nsXBLDragHandler::kDragDropAtom = nsnull;
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nsIAtom* nsXBLDragHandler::kDragGestureAtom = nsnull;
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nsXBLDragHandler::nsXBLDragHandler(nsIDOMEventReceiver* aReceiver, nsIXBLPrototypeHandler* aHandler)
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:nsXBLEventHandler(aReceiver,aHandler)
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{
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gRefCnt++;
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if (gRefCnt == 1) {
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kDragEnterAtom = NS_NewAtom("dragenter");
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kDragOverAtom = NS_NewAtom("dragover");
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kDragExitAtom = NS_NewAtom("dragexit");
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kDragDropAtom = NS_NewAtom("dragdrop");
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kDragGestureAtom = NS_NewAtom("draggesture");
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}
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}
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nsXBLDragHandler::~nsXBLDragHandler()
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{
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gRefCnt--;
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if (gRefCnt == 0) {
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NS_RELEASE(kDragEnterAtom);
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NS_RELEASE(kDragOverAtom);
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NS_RELEASE(kDragExitAtom);
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NS_RELEASE(kDragDropAtom);
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NS_RELEASE(kDragGestureAtom);
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}
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}
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NS_IMPL_ISUPPORTS_INHERITED1(nsXBLDragHandler, nsXBLEventHandler, nsIDOMDragListener)
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static inline nsresult DoMouse(nsIAtom* aEventType, nsIXBLPrototypeHandler* aHandler, nsIDOMEvent* aMouseEvent,
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nsIDOMEventReceiver* aReceiver)
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{
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if (!aHandler)
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return NS_OK;
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PRBool matched = PR_FALSE;
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nsCOMPtr<nsIDOMMouseEvent> mouse(do_QueryInterface(aMouseEvent));
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aHandler->MouseEventMatched(aEventType, mouse, &matched);
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if (matched)
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aHandler->ExecuteHandler(aReceiver, aMouseEvent);
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return NS_OK;
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}
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nsresult nsXBLDragHandler::DragEnter(nsIDOMEvent* aMouseEvent)
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{
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return DoMouse(kDragEnterAtom, mProtoHandler, aMouseEvent, mEventReceiver);
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}
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nsresult nsXBLDragHandler::DragOver(nsIDOMEvent* aMouseEvent)
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{
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return DoMouse(kDragOverAtom, mProtoHandler, aMouseEvent, mEventReceiver);
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}
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nsresult nsXBLDragHandler::DragDrop(nsIDOMEvent* aMouseEvent)
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{
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return DoMouse(kDragDropAtom, mProtoHandler, aMouseEvent, mEventReceiver);
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}
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nsresult nsXBLDragHandler::DragExit(nsIDOMEvent* aMouseEvent)
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{
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return DoMouse(kDragExitAtom, mProtoHandler, aMouseEvent, mEventReceiver);
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}
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nsresult nsXBLDragHandler::DragGesture(nsIDOMEvent* aMouseEvent)
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{
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return DoMouse(kDragGestureAtom, mProtoHandler, aMouseEvent, mEventReceiver);
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}
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///////////////////////////////////////////////////////////////////////////////////
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nsresult
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NS_NewXBLDragHandler(nsIDOMEventReceiver* aRec, nsIXBLPrototypeHandler* aHandler,
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nsXBLDragHandler** aResult)
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{
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*aResult = new nsXBLDragHandler(aRec, aHandler);
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if (!*aResult)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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