gecko/layout/mathml/nsMathMLmactionFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 MathML Project.
*
* The Initial Developer of the Original Code is
* The University Of Queensland.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Roger B. Sidje <rbs@maths.uq.edu.au>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsMathMLmactionFrame_h___
#define nsMathMLmactionFrame_h___
#include "nsCOMPtr.h"
#include "nsMathMLContainerFrame.h"
//
// <maction> -- bind actions to a subexpression
//
//#define DEBUG_mouse 1
#if DEBUG_mouse
#define MOUSE(_msg) printf("maction:%p MOUSE: "#_msg" ...\n", this);
#else
#define MOUSE(_msg)
#endif
class nsMathMLmactionFrame : public nsMathMLContainerFrame,
public nsIDOMMouseListener {
public:
friend nsIFrame* NS_NewMathMLmactionFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
NS_DECL_ISUPPORTS_INHERITED
NS_IMETHOD
Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow);
NS_IMETHOD
SetInitialChildList(nsIAtom* aListName,
nsIFrame* aChildList);
virtual nsresult
ChildListChanged(PRInt32 aModType);
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
virtual nsresult
Place(nsIRenderingContext& aRenderingContext,
PRBool aPlaceOrigin,
nsHTMLReflowMetrics& aDesiredSize);
NS_IMETHOD
Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
// nsIDOMMouseListener methods
NS_IMETHOD MouseDown(nsIDOMEvent* aMouseEvent) { MOUSE(down) return NS_OK; }
NS_IMETHOD MouseUp(nsIDOMEvent* aMouseEvent) { MOUSE(up) return NS_OK; }
NS_IMETHOD MouseClick(nsIDOMEvent* aMouseEvent);// { MOUSE(click) return NS_OK; }
NS_IMETHOD MouseDblClick(nsIDOMEvent* aMouseEvent) { MOUSE(dblclik) return NS_OK; }
NS_IMETHOD MouseOver(nsIDOMEvent* aMouseEvent);// { MOUSE(over) return NS_OK; }
NS_IMETHOD MouseOut(nsIDOMEvent* aMouseEvent);// { MOUSE(out) return NS_OK; }
// nsIDOMEventListener methods
NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) { MOUSE(event); return NS_OK; }
protected:
nsMathMLmactionFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
virtual ~nsMathMLmactionFrame();
virtual PRIntn GetSkipSides() const { return 0; }
private:
PRInt32 mActionType;
PRInt32 mChildCount;
PRInt32 mSelection;
nsIFrame* mSelectedFrame;
nsString mRestyle;
// helper to return the frame for the attribute selection="number"
nsIFrame*
GetSelectedFrame();
// helper to display a message on the status bar
static nsresult
ShowStatus(nsPresContext* aPresContext,
nsString& aStatusMsg);
};
#endif /* nsMathMLmactionFrame_h___ */