gecko-dev/layout/events/public/nsIEventStateManager.h

97 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsIEventStateManager_h__
#define nsIEventStateManager_h__
#include "nsGUIEvent.h"
#include "nsISupports.h"
#include "nsVoidArray.h"
class nsIContent;
class nsIPresContext;
class nsIDOMEvent;
class nsIFrame;
class nsIView;
class nsIWidget;
/*
* Event listener manager interface.
*/
#define NS_IEVENTSTATEMANAGER_IID \
{ /* 80a98c80-2036-11d2-bd89-00805f8ae3f4 */ \
0x80a98c80, 0x2036, 0x11d2, \
{0xbd, 0x89, 0x00, 0x80, 0x5f, 0x8a, 0xe3, 0xf4} }
class nsIEventStateManager : public nsISupports {
public:
static const nsIID& GetIID() { static nsIID iid = NS_IEVENTSTATEMANAGER_IID; return iid; }
NS_IMETHOD Init() = 0;
NS_IMETHOD PreHandleEvent(nsIPresContext* aPresContext,
nsEvent *aEvent,
nsIFrame* aTargetFrame,
nsEventStatus* aStatus,
nsIView* aView) = 0;
NS_IMETHOD PostHandleEvent(nsIPresContext* aPresContext,
nsEvent *aEvent,
nsIFrame* aTargetFrame,
nsEventStatus* aStatus,
nsIView* aView) = 0;
NS_IMETHOD SetPresContext(nsIPresContext* aPresContext) = 0;
NS_IMETHOD ClearFrameRefs(nsIFrame* aFrame) = 0;
NS_IMETHOD GetEventTarget(nsIFrame **aFrame) = 0;
NS_IMETHOD GetEventTargetContent(nsEvent* aEvent, nsIContent** aContent) = 0;
NS_IMETHOD GetEventRelatedContent(nsIContent** aContent) = 0;
NS_IMETHOD GetContentState(nsIContent *aContent, PRInt32& aState) = 0;
NS_IMETHOD SetContentState(nsIContent *aContent, PRInt32 aState) = 0;
NS_IMETHOD GetFocusedContent(nsIContent **aContent) = 0;
NS_IMETHOD SetFocusedContent(nsIContent* aContent) = 0;
// This is an experiement and may be temporary
NS_IMETHOD ConsumeFocusEvents(PRBool aDoConsume) = 0;
// Access Key Registration
NS_IMETHOD RegisterAccessKey(nsIFrame * aFrame, nsIContent* aContent, PRUint32 aKey) = 0;
NS_IMETHOD UnregisterAccessKey(nsIFrame * aFrame, nsIContent* aContent, PRUint32 aKey) = 0;
NS_IMETHOD SetCursor(PRInt32 aCursor, nsIWidget* aWidget, PRBool aLockCursor) = 0;
//Method for centralized distribution of new DOM events
NS_IMETHOD DispatchNewEvent(nsISupports* aTarget, nsIDOMEvent* aEvent) = 0;
};
#define NS_EVENT_STATE_UNSPECIFIED 0x0000
#define NS_EVENT_STATE_ACTIVE 0x0001 // mouse is down on content
#define NS_EVENT_STATE_FOCUS 0x0002 // content has focus
#define NS_EVENT_STATE_HOVER 0x0004 // mouse is hovering over content
#define NS_EVENT_STATE_DRAGOVER 0x0008 // drag is hovering over content
#endif // nsIEventStateManager_h__