/* -*- Mode: C++; tab-width: 4; 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.
 */

#include "nsIFactory.h"
#include "nsISupports.h"
#include "nsdefs.h"
#include "nsWidgetsCID.h"

#include "nsButton.h"
#include "nsCheckButton.h"
#include "nsComboBox.h"
#include "nsFileWidget.h"
#include "nsFileSpecWithUIImpl.h"
#include "nsListBox.h"
#include "nsLookAndFeel.h"
#include "nsRadioButton.h"
#include "nsScrollbar.h"
#include "nsTextAreaWidget.h"
#include "nsTextHelper.h"
#include "nsTextWidget.h"
#include "nsToolkit.h"
#include "nsTabWidget.h"
#include "nsTooltipWidget.h"
#include "nsWindow.h"
#include "nsLabel.h"
#include "nsMenuBar.h"
#include "nsMenu.h"
#include "nsMenuItem.h"
#include "nsContextMenu.h"
#include "nsPopUpMenu.h"
#include "nsAppShell.h"
#include "nsIServiceManager.h"
#include "nsFontRetrieverService.h"

// Drag & Drop, Clipboard
#include "nsClipboard.h"
#include "nsTransferable.h"
#include "nsXIFFormatConverter.h"
#include "nsDragService.h"
#include "nsFileListTransferable.h"

#include "nsISound.h"

static NS_DEFINE_IID(kCWindow,        NS_WINDOW_CID);
static NS_DEFINE_IID(kCChild,         NS_CHILD_CID);
static NS_DEFINE_IID(kCButton,        NS_BUTTON_CID);
static NS_DEFINE_IID(kCCheckButton,   NS_CHECKBUTTON_CID);
static NS_DEFINE_IID(kCCombobox,      NS_COMBOBOX_CID);
static NS_DEFINE_IID(kCFileOpen,      NS_FILEWIDGET_CID);
static NS_DEFINE_IID(kCListbox,       NS_LISTBOX_CID);
static NS_DEFINE_IID(kCRadioButton,   NS_RADIOBUTTON_CID);
static NS_DEFINE_IID(kCHorzScrollbar, NS_HORZSCROLLBAR_CID);
static NS_DEFINE_IID(kCVertScrollbar, NS_VERTSCROLLBAR_CID);
static NS_DEFINE_IID(kCTextArea,      NS_TEXTAREA_CID);
static NS_DEFINE_IID(kCTextField,     NS_TEXTFIELD_CID);
static NS_DEFINE_IID(kCTabWidget,     NS_TABWIDGET_CID);
static NS_DEFINE_IID(kCTooltipWidget, NS_TOOLTIPWIDGET_CID);
static NS_DEFINE_IID(kCAppShell,      NS_APPSHELL_CID);
static NS_DEFINE_IID(kCToolkit,       NS_TOOLKIT_CID);
static NS_DEFINE_IID(kCLookAndFeel,   NS_LOOKANDFEEL_CID);
static NS_DEFINE_IID(kCLabel,         NS_LABEL_CID);
static NS_DEFINE_IID(kCMenuBar,       NS_MENUBAR_CID);
static NS_DEFINE_IID(kCMenu,          NS_MENU_CID);
static NS_DEFINE_IID(kCMenuItem,      NS_MENUITEM_CID);
static NS_DEFINE_IID(kCContextMenu,   NS_CONTEXTMENU_CID);
static NS_DEFINE_IID(kCPopUpMenu,     NS_POPUPMENU_CID);
static NS_DEFINE_IID(kCFontRetrieverService, NS_FONTRETRIEVERSERVICE_CID);

// Drag & Drop, Clipboard
static NS_DEFINE_IID(kCDataObj,       NS_DATAOBJ_CID);
static NS_DEFINE_IID(kCClipboard,     NS_CLIPBOARD_CID);
static NS_DEFINE_IID(kCTransferable,  NS_TRANSFERABLE_CID);
static NS_DEFINE_IID(kCXIFFormatConverter,  NS_XIFFORMATCONVERTER_CID);
static NS_DEFINE_IID(kCDragService,   NS_DRAGSERVICE_CID);
static NS_DEFINE_IID(kCFileListTransferable, NS_FILELISTTRANSFERABLE_CID);

static NS_DEFINE_IID(kISupportsIID,   NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIFactoryIID,    NS_IFACTORY_IID);

// Sound services (just Beep for now)
static NS_DEFINE_CID(kCSound,   NS_SOUND_CID);
static NS_DEFINE_CID(kCFileSpecWithUI,   NS_FILESPECWITHUI_CID);

class nsWidgetFactory : public nsIFactory
{   
public:   
    // nsISupports methods   
    NS_DECL_ISUPPORTS

    // nsIFactory methods   
    NS_IMETHOD CreateInstance(nsISupports *aOuter,   
                                       const nsIID &aIID,   
                                       void **aResult);   

    NS_IMETHOD LockFactory(PRBool aLock);   

    nsWidgetFactory(const nsCID &aClass);   
    ~nsWidgetFactory();   

private:   
    nsCID mClassID;
}; 

NS_IMPL_ADDREF(nsWidgetFactory)
NS_IMPL_RELEASE(nsWidgetFactory)
  

nsWidgetFactory::nsWidgetFactory(const nsCID &aClass)   
{   
  NS_INIT_REFCNT();
  mClassID = aClass;
}   

nsWidgetFactory::~nsWidgetFactory()   
{   
    NS_ASSERTION(mRefCnt == 0, "Reference count not zero in destructor");   
}   

nsresult nsWidgetFactory::QueryInterface(const nsIID &aIID,   
                                         void **aResult)   
{   
    if (aResult == NULL) {   
        return NS_ERROR_NULL_POINTER;   
    }   

    // Always NULL result, in case of failure   
    *aResult = NULL;   

    if (aIID.Equals(kISupportsIID)) {   
        *aResult = (void *)(nsISupports*)this;   
    } else if (aIID.Equals(kIFactoryIID)) {   
        *aResult = (void *)(nsIFactory*)this;   
    }   

    if (*aResult == NULL) {   
        return NS_NOINTERFACE;   
    }   

    NS_ADDREF_THIS(); // Increase reference count for caller   
    return NS_OK;   
}   


nsresult nsWidgetFactory::CreateInstance( nsISupports* aOuter,
                                          const nsIID &aIID,  
                                          void **aResult)  
{  
    if (aResult == NULL) {  
        return NS_ERROR_NULL_POINTER;  
    }  
    *aResult = NULL;  
    if (nsnull != aOuter) {
        return NS_ERROR_NO_AGGREGATION;
    }

    nsISupports *inst = nsnull;
    if (mClassID.Equals(kCWindow)) {
        inst = (nsISupports*)new nsWindow();
    }
    else if (mClassID.Equals(kCChild)) {
        inst = (nsISupports*)new ChildWindow();
    }
    else if (mClassID.Equals(kCButton)) {
        inst = (nsISupports*)(nsWindow*)new nsButton();
    }
    else if (mClassID.Equals(kCCheckButton)) {
        inst = (nsISupports*)(nsWindow*)new nsCheckButton();
    }
    else if (mClassID.Equals(kCCombobox)) {
        inst = (nsISupports*)(nsWindow*)new nsComboBox();
    }
    else if (mClassID.Equals(kCRadioButton)) {
        inst = (nsISupports*)(nsWindow*)new nsRadioButton();
    }
    else if (mClassID.Equals(kCFileOpen)) {
        inst = (nsISupports*)new nsFileWidget();
    }
    else if (mClassID.Equals(kCListbox)) {
        inst = (nsISupports*)(nsWindow*)new nsListBox();
    }
    else if (mClassID.Equals(kCHorzScrollbar)) {
        inst = (nsISupports*)(nsWindow*)new nsScrollbar(PR_FALSE);
    }
    else if (mClassID.Equals(kCVertScrollbar)) {
        inst = (nsISupports*)(nsWindow*)new nsScrollbar(PR_TRUE);
    }
    else if (mClassID.Equals(kCTextArea)) {
        inst = (nsISupports*)(nsWindow*)new nsTextAreaWidget();
    }
    else if (mClassID.Equals(kCTextField)) {
        inst = (nsISupports*)(nsWindow*)new nsTextWidget();
    }
    else if (mClassID.Equals(kCTabWidget)) {
        inst = (nsISupports*)(nsWindow*)new nsTabWidget();
    }
    else if (mClassID.Equals(kCTooltipWidget)) {
        inst = (nsISupports*)(nsWindow*)new nsTooltipWidget();
    }
    else if (mClassID.Equals(kCAppShell)) {
        inst = (nsISupports*)new nsAppShell();
    }
    else if (mClassID.Equals(kCToolkit)) {
        inst = (nsISupports*)new nsToolkit();
    }
    else if (mClassID.Equals(kCLookAndFeel)) {
        inst = (nsISupports*)new nsLookAndFeel();
    }
    else if (mClassID.Equals(kCLabel)) {
        inst = (nsISupports*)(nsWindow*)new nsLabel();
    }
    else if (mClassID.Equals(kCMenuBar)) {
        inst = (nsISupports*)(nsIMenuBar*)new nsMenuBar();
    }
    else if (mClassID.Equals(kCMenu)) {
        inst = (nsISupports*)(nsIMenu*)new nsMenu();
    }
    else if (mClassID.Equals(kCMenuItem)) {
        inst = (nsISupports*)(nsIMenuItem*)new nsMenuItem();
    }
    else if (mClassID.Equals(kCContextMenu)) {
        inst = (nsISupports*)(nsIContextMenu*)new nsContextMenu();
    }
    else if (mClassID.Equals(kCPopUpMenu)) {
        inst = (nsISupports*)new nsPopUpMenu();
    }
    else if (mClassID.Equals(kCSound)) {
    	nsISound* aSound = nsnull;
    	NS_NewSound(&aSound);
        inst = (nsISupports*) aSound;
    }
    else if (mClassID.Equals(kCFileSpecWithUI))
    	inst = (nsISupports*) (nsIFileSpecWithUI *) new nsFileSpecWithUIImpl;
    else if (mClassID.Equals(kCTransferable)) {
        inst = (nsISupports*)new nsTransferable();
    }
    else if (mClassID.Equals(kCXIFFormatConverter)) {
        inst = (nsISupports*)new nsXIFFormatConverter();
    }
    else if (mClassID.Equals(kCClipboard)) {
        inst = (nsISupports*)(nsBaseClipboard *)new nsClipboard();
    }
    else if (mClassID.Equals(kCDragService)) {
        inst = (nsISupports*)(nsIDragService *)new nsDragService();
    }
    else if (mClassID.Equals(kCFontRetrieverService)) {
        inst = (nsISupports*)(nsIFontRetrieverService *)new nsFontRetrieverService();
    }
    else if (mClassID.Equals(kCFileListTransferable)) {
        inst = (nsISupports*)(nsITransferable *)new nsFileListTransferable();
    }
	/* */
  
    if (inst == NULL) {  
        return NS_ERROR_OUT_OF_MEMORY;  
    }  

    nsresult res = inst->QueryInterface(aIID, aResult);

    if (res != NS_OK) {  
        // We didn't get the right interface, so clean up  
        delete inst;  
    }

    return res;  
}  

nsresult nsWidgetFactory::LockFactory(PRBool aLock)  
{  
    // Not implemented in simplest case.  
    return NS_OK;
}  

// return the proper factory to the caller
extern "C" NS_WIDGET nsresult 
NSGetFactory(nsISupports* serviceMgr,
             const nsCID &aClass,
             const char *aClassName,
             const char *aProgID,
             nsIFactory **aFactory)
{
  if (nsnull == aFactory) {
    return NS_ERROR_NULL_POINTER;
  }

  *aFactory = new nsWidgetFactory(aClass);

  if (nsnull == aFactory) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  return (*aFactory)->QueryInterface(kIFactoryIID, (void**)aFactory);
}


