/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * 
 * 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 RaptorCanvas.
 *
 * The Initial Developer of the Original Code is Kirk Baker and
 * Ian Wilkinson. Portions created by Kirk Baker and Ian Wilkinson are
 * Copyright (C) 1999 Kirk Baker and Ian Wilkinson. All
 * Rights Reserved.
 *
 * Contributor(s): Kirk Baker <kbaker@eb.com>
 *               Ian Wilkinson <iw@ennoble.com>
 *               Mark Lin <mark.lin@eng.sun.com>
 *               Mark Goddard
 *               Ed Burns <edburns@acm.org>
 *               Ashutosh Kulkarni <ashuk@eng.sun.com>
 *               Ann Sunhachawee
 */


/**

 * Util methods

 */

#ifndef ns_util_h
#define ns_util_h

#include "jni_util.h" // located in ../src_share, 
                      // pulls in ../src_share/jni_util_export.h

#include "nsCOMPtr.h" // so we can save the docShell
#include "nsIWebBrowser.h"
#include "nsIDocShell.h" // so we can save our nsIDocShell
#include "nsIBaseWindow.h" // to get methods like SetVisibility
#include "nsIWebNavigation.h" // for all Navigation commands
#include "nsIPresShell.h"
#include "nsIThread.h" // for PRThread
#include "nsIWebShell.h" // for nsIWebShell
#include "nsIEventQueueService.h" // for PLEventQueue
#include "nsISearchContext.h" // for Find
#include "nsIDOMDocument.h"

#include "wcIBrowserContainer.h" // our BrowserContainer

#include "ns_globals.h"

// Ashu
#ifdef XP_UNIX
#include "nsIWidget.h" // for GTKWidget
#include <gtk/gtk.h>
#endif
//

#if defined(XP_UNIX) || defined(XP_MAC) || defined(XP_BEOS)

#define WC_ITOA(intVal, buf, radix) sprintf(buf, "%d", intVal)
#else
#define WC_ITOA(intVal, buf, radix) itoa(intVal, buf, radix)
#endif

//
// local classes
//

// PENDING(edburns): this should be a class, and we should define a
// constructor and destructor for it.

struct WebShellInitContext {
#ifdef XP_UNIX
    GtkWidget * parentHWnd;
#else 
    // PENDING(mark): Don't we need something for Mac?
    HWND				parentHWnd;
#endif
	nsCOMPtr<nsIWebShell> webShell;
    nsCOMPtr<nsIDocShell> docShell;
    nsCOMPtr<nsIBaseWindow> baseWindow;
  nsCOMPtr<nsIWebNavigation> webNavigation;
  nsCOMPtr<nsIPresShell> presShell;
  nsCOMPtr<nsIWebBrowser> webBrowser;
    //	PLEventQueue	*	actionQueue;
    //	PRThread		*	embeddedThread;
    JNIEnv          *   env;
    jobject             nativeEventThread;
	int					stopThread;
	int					initComplete;
	int					initFailCode;
	int					x;
	int					y;
	int					w;
	int					h;
    int                 gtkWinPtr;
    nsCOMPtr<nsISearchContext> searchContext;
    nsCOMPtr<nsIDOMDocument> currentDocument;
    nsCOMPtr<wcIBrowserContainer> browserContainer;
    // This struct contains all per-window information not specific to mozilla
    ShareInitContext   shareContext;
};

enum {
	kEventQueueError = 1,
	kCreateWebShellError,
	kCreateDocShellError,
	kGetBaseWindowError,
	kInitWebShellError,
	kShowWebShellError,
	kHistoryWebShellError,
	kClipboardWebShellError,
	kFindComponentError,
	kSearchContextError,
    kGetContentViewerError,
    kGetDOMWindowError
};

extern const char *gSupportedListenerInterfaces[]; // defined in ns_util.cpp

/**

 * This method calls PL_PostEvent(),

 * http://lxr.mozilla.org/mozilla/source/xpcom/threads/plevent.c#248

 * which simply uses nice monitors to insert the event into the provided
 * event queue, which is from WebShellInitContext->actionQueue, which is
 * created in NativeEventThread.cpp:InitMozillaStuff().  The events are
 * processed in NativeEventThread.cpp:processEventLoop, which is called
 * from the Java NativeEventThread.run().  See the code and comments for
 * processEventLoop in NativeEventThread.cpp.

 */

void    util_PostEvent (WebShellInitContext * initContext, PLEvent * event);


/**

 * This method calls PL_PostSynchronousEvent(),

 * http://lxr.mozilla.org/mozilla/source/xpcom/threads/plevent.c#278

 * which, instead of putting the event in the queue, as in
 * util_PostEvent(), either calls the event's handler directly, or puts
 * it in the queue and waits for it to be processed so it can return the
 * result.

 */

void *  util_PostSynchronousEvent (WebShellInitContext * initContext, PLEvent * event);

typedef struct _wsStringStruct {
    const PRUnichar *uniStr;
    jstring jStr;
} wsStringStruct;

/**

 * @param strings wsStringStruct [].  A null terminated array of
 * wsStringStruct instances.  On return, the jStr of each element is the
 * new jstring.  Call util_DeleteJstringsFromUnichars to deallocate.

 */

nsresult util_CreateJstringsFromUnichars(wsStringStruct *strings, 
                                         PRInt32 arrayLen);

nsresult util_DeleteJstringsFromUnichars(wsStringStruct *strings, 
                                         PRInt32 arrayLen);

// hack functions to get around mozilla oddities
#ifdef XP_UNIX
jint util_GetGTKWinPtrFromCanvas(JNIEnv *env, jobject browserControlCanvas);
#endif

nsresult util_GetLocaleString(const char *aKey, PRUnichar **aResult);

#endif // ns_util_h