148 lines
4.5 KiB
C++
148 lines
4.5 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 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
#ifndef nsInputFrame_h___
|
|
#define nsInputFrame_h___
|
|
|
|
#include "nsHTMLTagContent.h"
|
|
#include "nsISupports.h"
|
|
#include "nsIWidget.h"
|
|
#include "nsLeafFrame.h"
|
|
|
|
class nsIView;
|
|
|
|
/**
|
|
* Enumeration of possible mouse states used to detect mouse clicks
|
|
*/
|
|
enum nsMouseState {
|
|
eMouseNone,
|
|
eMouseEnter,
|
|
eMouseDown,
|
|
eMouseUp
|
|
};
|
|
|
|
/**
|
|
* nsInputFrame is the base class for frames of form controls. It
|
|
* provides a uniform way of creating widgets, resizing, and painting.
|
|
* @see nsLeafFrame and its base classes for more info
|
|
*/
|
|
class nsInputFrame : public nsLeafFrame {
|
|
public:
|
|
/**
|
|
* Main constructor
|
|
* @param aContent the content representing this frame
|
|
* @param aIndexInParent the position in the parent frame's children which this frame occupies
|
|
* @param aParentFrame the parent frame
|
|
*/
|
|
nsInputFrame(nsIContent* aContent,
|
|
PRInt32 aIndexInParent,
|
|
nsIFrame* aParentFrame);
|
|
|
|
// nsLeafFrame overrides
|
|
|
|
/**
|
|
* Respond to a gui event
|
|
* @see nsIFrame::HandleEvent
|
|
*/
|
|
NS_IMETHOD HandleEvent(nsIPresContext& aPresContext,
|
|
nsGUIEvent* aEvent,
|
|
nsEventStatus& aEventStatus);
|
|
/**
|
|
* Draw this frame within the context of a presentation context and rendering context
|
|
* @see nsIFrame::Paint
|
|
*/
|
|
NS_IMETHOD Paint(nsIPresContext& aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect);
|
|
|
|
/**
|
|
* Respond to the request to resize and/or reflow
|
|
* @see nsIFrame::ResizeReflow
|
|
*/
|
|
NS_IMETHOD ResizeReflow(nsIPresContext* aCX,
|
|
nsReflowMetrics& aDesiredSize,
|
|
const nsSize& aMaxSize,
|
|
nsSize* aMaxElementSize,
|
|
ReflowStatus& aStatus);
|
|
|
|
// New Behavior
|
|
|
|
/**
|
|
* Get the class id of the widget associated with this frame
|
|
* @return the class id
|
|
*/
|
|
virtual const nsIID GetCID();
|
|
|
|
/**
|
|
* Get the interface id of widget associated with this frame
|
|
* @return the interface id
|
|
*/
|
|
virtual const nsIID GetIID();
|
|
|
|
/**
|
|
* Get the widget associated with this frame
|
|
* @param aView the view associated with the frame. It is a convience parm.
|
|
* @param aWidget the address of address of where the widget will be placed.
|
|
* This method doses an AddRef on the widget.
|
|
*/
|
|
virtual nsresult GetWidget(nsIView* aView, nsIWidget** aWidget);
|
|
|
|
/**
|
|
* Perform opertations after the widget associated with this frame has been
|
|
* fully constructed.
|
|
*/
|
|
virtual void InitializeWidget(nsIView *aView) = 0;
|
|
|
|
/**
|
|
* Respond to a mouse click (e.g. mouse enter, mouse down, mouse up)
|
|
*/
|
|
virtual void MouseClicked() {}
|
|
|
|
/**
|
|
* Perform operations before the widget associated with this frame has been
|
|
* constructed.
|
|
* @param aPresContext the presentation context
|
|
* @param aBounds the bounds of this frame. It will be set by this method.
|
|
*/
|
|
virtual void PreInitializeWidget(nsIPresContext* aPresContext,
|
|
nsSize& aBounds);
|
|
|
|
protected:
|
|
|
|
virtual ~nsInputFrame();
|
|
|
|
/**
|
|
* Get the size that this frame would occupy without any constraints
|
|
* @param aPresContext the presentation context
|
|
* @param aDesiredSize the size desired by this frame, to be set by this method
|
|
* @param aMaxSize the maximum size available for this frame
|
|
*/
|
|
virtual void GetDesiredSize(nsIPresContext* aPresContext,
|
|
nsReflowMetrics& aDesiredSize,
|
|
const nsSize& aMaxSize);
|
|
/**
|
|
* Return PR_TRUE if the bounds of this frame have been set
|
|
*/
|
|
PRBool BoundsAreSet();
|
|
|
|
nsSize mCacheBounds;
|
|
nsMouseState mLastMouseState;
|
|
};
|
|
|
|
#endif
|