367 lines
12 KiB
C++
367 lines
12 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 Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* 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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* 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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*
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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 nsWidget_h__
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#define nsWidget_h__
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#include "nsBaseWidget.h"
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#include "nsIKBStateControl.h"
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#include "nsIRegion.h"
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#ifdef PHOTON_DND
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#include "nsIDragService.h"
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#endif
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#include "nsClipboard.h"
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class nsILookAndFeel;
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class nsIAppShell;
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class nsIToolkit;
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#include <Pt.h>
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class nsWidget;
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#define NS_TO_PH_RGB(ns) (ns & 0xff) << 16 | (ns & 0xff00) | ((ns >> 16) & 0xff)
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#define PH_TO_NS_RGB(ns) (ns & 0xff) << 16 | (ns & 0xff00) | ((ns >> 16) & 0xff)
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/**
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* Base of all Photon native widgets.
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*/
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class nsWidget : public nsBaseWidget, nsIKBStateControl
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{
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public:
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nsWidget();
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virtual ~nsWidget();
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NS_DECL_ISUPPORTS_INHERITED
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// nsIWidget
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// create with nsIWidget parent
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inline NS_IMETHOD Create(nsIWidget *aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell = nsnull,
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nsIToolkit *aToolkit = nsnull,
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nsWidgetInitData *aInitData = nsnull)
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{
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return(CreateWidget(aParent, aRect, aHandleEventFunction, aContext, aAppShell, aToolkit, aInitData, nsnull));
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}
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// create with a native parent
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inline NS_IMETHOD Create(nsNativeWidget aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell = nsnull,
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nsIToolkit *aToolkit = nsnull,
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nsWidgetInitData *aInitData = nsnull)
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{
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return(CreateWidget(nsnull, aRect, aHandleEventFunction, aContext, aAppShell, aToolkit, aInitData,aParent));
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}
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NS_IMETHOD Destroy(void);
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inline nsIWidget* GetParent(void)
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{
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if( mIsDestroying ) return nsnull;
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nsIWidget* result = mParent;
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if( mParent ) NS_ADDREF( result );
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return result;
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}
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virtual void OnDestroy();
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NS_IMETHOD SetModal(PRBool aModal);
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NS_IMETHOD Show(PRBool state);
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inline NS_IMETHOD CaptureRollupEvents(nsIRollupListener *aListener, PRBool aDoCapture, PRBool aConsumeRollupEvent) { return NS_OK; }
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inline NS_IMETHOD IsVisible(PRBool &aState) { aState = mShown; return NS_OK; }
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inline NS_IMETHOD ConstrainPosition(PRBool aAllowSlop, PRInt32 *aX, PRInt32 *aY) { return NS_OK; }
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NS_IMETHOD Move(PRInt32 aX, PRInt32 aY);
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NS_IMETHOD Resize(PRInt32 aWidth, PRInt32 aHeight, PRBool aRepaint);
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inline NS_IMETHOD Resize(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight, PRBool aRepaint)
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{
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Move(aX,aY);
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Resize(aWidth,aHeight,aRepaint);
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return NS_OK;
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}
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inline NS_IMETHOD Enable(PRBool aState)
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{
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if( mWidget ) PtSetResource( mWidget, Pt_ARG_FLAGS, aState ? 0 : Pt_BLOCKED, Pt_BLOCKED );
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return NS_OK;
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}
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inline NS_IMETHOD IsEnabled(PRBool *aState)
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{
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if(PtWidgetFlags(mWidget) & Pt_BLOCKED) *aState = PR_FALSE;
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else *aState = PR_TRUE;
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return NS_OK;
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}
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PRBool OnResize(nsSizeEvent event);
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virtual PRBool OnResize(nsRect &aRect);
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virtual PRBool OnMove(PRInt32 aX, PRInt32 aY);
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inline nsIFontMetrics *GetFont(void) { return nsnull; }
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NS_IMETHOD SetFont(const nsFont &aFont);
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inline NS_IMETHOD SetBackgroundColor(const nscolor &aColor)
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{
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nsBaseWidget::SetBackgroundColor( aColor );
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if( mWidget ) PtSetResource( mWidget, Pt_ARG_FILL_COLOR, NS_TO_PH_RGB( aColor ), 0 );
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return NS_OK;
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}
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NS_IMETHOD SetCursor(nsCursor aCursor);
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inline NS_IMETHOD SetColorMap(nsColorMap *aColorMap) { return NS_OK; }
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inline void* GetNativeData(PRUint32 aDataType) { return (void *)mWidget; }
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NS_IMETHOD WidgetToScreen(const nsRect &aOldRect, nsRect &aNewRect);
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NS_IMETHOD ScreenToWidget(const nsRect &aOldRect, nsRect &aNewRect);
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inline NS_IMETHOD BeginResizingChildren(void)
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{
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PtHold();
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return NS_OK;
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}
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inline NS_IMETHOD EndResizingChildren(void)
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{
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PtRelease();
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return NS_OK;
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}
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inline NS_IMETHOD GetPreferredSize(PRInt32& aWidth, PRInt32& aHeight)
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{
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aWidth = mPreferredWidth;
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aHeight = mPreferredHeight;
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return (mPreferredWidth != 0 && mPreferredHeight != 0)?NS_OK:NS_ERROR_FAILURE;
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}
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inline NS_IMETHOD SetPreferredSize(PRInt32 aWidth, PRInt32 aHeight)
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{
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mPreferredWidth = aWidth;
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mPreferredHeight = aHeight;
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return NS_OK;
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}
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// Use this to set the name of a widget for normal widgets.. not the same as the nsWindow version
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inline NS_IMETHOD SetTitle(const nsAString& aTitle) { return NS_OK; }
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inline void ConvertToDeviceCoordinates(nscoord &aX, nscoord &aY) { }
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// the following are nsWindow specific, and just stubbed here
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inline NS_IMETHOD Scroll(PRInt32 aDx, PRInt32 aDy, nsRect *aClipRect) { return NS_OK; }
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inline NS_IMETHOD ScrollWidgets(PRInt32 aDx, PRInt32 aDy) { return NS_OK; }
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inline NS_IMETHOD SetMenuBar(nsIMenuBar *aMenuBar) { return NS_ERROR_FAILURE; }
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inline NS_IMETHOD ShowMenuBar(PRBool aShow) { return NS_ERROR_FAILURE; }
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// *could* be done on a widget, but that would be silly wouldn't it?
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NS_IMETHOD CaptureMouse(PRBool aCapture) { return NS_ERROR_FAILURE; }
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NS_IMETHOD Invalidate(PRBool aIsSynchronous);
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NS_IMETHOD Invalidate(const nsRect &aRect, PRBool aIsSynchronous);
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NS_IMETHOD InvalidateRegion(const nsIRegion *aRegion, PRBool aIsSynchronous);
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inline NS_IMETHOD Update(void)
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{
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/* if the widget has been invalidated or damaged then re-draw it */
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PtFlush();
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return NS_OK;
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}
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NS_IMETHOD DispatchEvent(nsGUIEvent* event, nsEventStatus & aStatus);
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// nsIKBStateControl
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NS_IMETHOD ResetInputState();
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NS_IMETHOD SetIMEOpenState(PRBool aState);
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NS_IMETHOD GetIMEOpenState(PRBool* aState);
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NS_IMETHOD SetIMEEnabled(PRBool aState);
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NS_IMETHOD GetIMEEnabled(PRBool* aState);
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NS_IMETHOD CancelIMEComposition();
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inline void InitEvent(nsGUIEvent& event, PRUint32 aEventType, nsPoint* aPoint = nsnull)
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{
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if( aPoint == nsnull ) {
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event.refPoint.x = 0;
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event.refPoint.y = 0;
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}
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else {
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event.refPoint.x = aPoint->x;
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event.refPoint.y = aPoint->y;
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}
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event.widget = this;
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event.time = PR_IntervalNow();
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event.message = aEventType;
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}
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// Utility functions
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inline PRBool ConvertStatus(nsEventStatus aStatus)
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{
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return aStatus == nsEventStatus_eConsumeNoDefault;
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}
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PRBool DispatchMouseEvent(nsMouseEvent& aEvent);
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inline PRBool DispatchStandardEvent(PRUint32 aMsg)
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{
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nsGUIEvent event(PR_TRUE, 0, nsnull);
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InitEvent(event, aMsg);
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return DispatchWindowEvent(&event);
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}
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// are we a "top level" widget?
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PRBool mIsToplevel;
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// Set/Get the Pt_ARG_USER_DATA associated with each PtWidget_t *
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// this is always set to the "this" that owns the PtWidget_t
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static inline void SetInstance( PtWidget_t *pWidget, nsWidget * inst ) { PtSetResource( pWidget, Pt_ARG_POINTER, (void *)inst, 0 ); }
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static inline nsWidget* GetInstance( PtWidget_t *pWidget )
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{
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nsWidget *data;
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PtGetResource( pWidget, Pt_ARG_POINTER, &data, 0 );
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return data;
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}
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protected:
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NS_IMETHOD CreateNative(PtWidget_t *parentWindow) { return NS_OK; }
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nsresult CreateWidget(nsIWidget *aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell,
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nsIToolkit *aToolkit,
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nsWidgetInitData *aInitData,
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nsNativeWidget aNativeParent = nsnull);
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inline PRBool DispatchWindowEvent(nsGUIEvent* event)
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{
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nsEventStatus status;
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DispatchEvent(event, status);
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return ConvertStatus(status);
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}
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#ifdef PHOTON_DND
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void DispatchDragDropEvent( PhEvent_t *phevent, PRUint32 aEventType, PhPoint_t *pos );
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void ProcessDrag( PhEvent_t *event, PRUint32 aEventType, PhPoint_t *pos );
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#endif
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// this is the "native" destroy code that will destroy any
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// native windows / widgets for this logical widget
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virtual void DestroyNative(void);
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//////////////////////////////////////////////////////////////////
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//
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// Photon event support methods
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//
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//////////////////////////////////////////////////////////////////
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static int RawEventHandler( PtWidget_t *widget, void *data, PtCallbackInfo_t *cbinfo );
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inline PRBool HandleEvent( PtWidget_t *, PtCallbackInfo_t* aCbInfo );
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PRBool DispatchKeyEvent(PhKeyEvent_t *aPhKeyEvent);
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inline void ScreenToWidgetPos( PhPoint_t &pt )
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{
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// pt is in screen coordinates - convert it to be relative to ~this~ widgets origin
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short x, y;
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PtGetAbsPosition( mWidget, &x, &y );
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pt.x -= x; pt.y -= y;
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}
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inline void InitKeyEvent(PhKeyEvent_t *aPhKeyEvent, nsKeyEvent &anEvent );
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inline void InitKeyPressEvent(PhKeyEvent_t *aPhKeyEvent, nsKeyEvent &anEvent );
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void InitMouseEvent( PhPointerEvent_t * aPhButtonEvent,
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nsWidget * aWidget,
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nsMouseEvent & anEvent,
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PRUint32 aEventType,
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PRInt16 aButton);
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/* Convert Photon key codes to Mozilla key codes */
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PRUint32 nsConvertKey( PhKeyEvent_t *aPhKeyEvent );
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#if 0
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//Enable/Disable Photon Damage
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inline void EnableDamage( PtWidget_t *widget, PRBool enable )
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{
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PtWidget_t *top = PtFindDisjoint( widget );
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if( top ) {
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if( PR_TRUE == enable ) PtEndFlux( top );
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else PtStartFlux( top );
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}
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}
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#endif
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//////////////////////////////////////////////////////////////////
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//
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// Photon widget callbacks
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//
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//////////////////////////////////////////////////////////////////
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static int GotFocusCallback( PtWidget_t *widget, void *data, PtCallbackInfo_t *cbinfo );
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static int LostFocusCallback( PtWidget_t *widget, void *data, PtCallbackInfo_t *cbinfo );
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static int DestroyedCallback( PtWidget_t *widget, void *data, PtCallbackInfo_t *cbinfo );
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#ifdef PHOTON_DND
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static int DndCallback( PtWidget_t *widget, void *data, PtCallbackInfo_t *cbinfo );
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#endif
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PtWidget_t *mWidget;
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nsIWidget *mParent;
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PRBool mShown;
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PRUint32 mPreferredWidth, mPreferredHeight;
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PRBool mListenForResizes;
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// Focus used global variable
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static nsWidget* sFocusWidget; //Current Focus Widget
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static nsILookAndFeel *sLookAndFeel;
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#ifdef PHOTON_DND
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static nsIDragService *sDragService;
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#endif
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static nsClipboard *sClipboard;
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static PRUint32 sWidgetCount;
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};
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#endif /* nsWidget_h__ */
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