/* ***** 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 the Netscape security libraries.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1994-2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Adam Lock <adamlock@eircom.net> 
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either 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 PLUGINHOSTWND_H
#define PLUGINHOSTWND_H

#include "nsPluginWnd.h"

class nsURLDataCallback;

template <class Entry>
class nsSimpleArray
{
    Entry *m_pData;
    unsigned long m_nSize;
    unsigned long m_nMaxSize;
    unsigned long m_nExpandArrayBy;
public:
    nsSimpleArray(unsigned long nExpandArrayBy = 10) :
      m_pData(NULL),
      m_nSize(0),
      m_nMaxSize(0),
      m_nExpandArrayBy(nExpandArrayBy)
    {
    }
    
    virtual ~nsSimpleArray()
    {
        Empty();
    }

    Entry ElementAt(unsigned long aIndex) const
    {
        ATLASSERT(aIndex < m_nSize);
        return m_pData[aIndex];
    }

    Entry operator[](unsigned long aIndex) const
    {
        return ElementAt(aIndex);
    }

    void AppendElement(Entry entry)
    {
        if (!m_pData)
        {
            m_nMaxSize = m_nExpandArrayBy;
            m_pData = (Entry *) malloc(sizeof(Entry) * m_nMaxSize);
        }
        else if (m_nSize == m_nMaxSize)
        {
            m_nMaxSize += m_nExpandArrayBy;
            m_pData = (Entry *) realloc(m_pData, sizeof(Entry) * m_nMaxSize);
        }
        ATLASSERT(m_pData);
        if (m_pData)
        {
            m_pData[m_nSize++] = entry;
        }
    }

    void RemoveElementAt(unsigned long nIndex)
    {
        ATLASSERT(aIndex < m_nSize);
        if (nIndex < m_nSize)
        {
            m_nSize--;
            if (m_nSize > 0)
            {
                m_pData[nIndex] = m_pData[m_nSize - 1];
                m_nSize--;
            }
        }
    }

    void RemoveElement(Entry entry)
    {
        unsigned long i = 0;
        while (i < m_nSize)
        {
            if (m_pData[i] == entry)
            {
                m_nSize--;
                if (m_nSize > 0)
                {
                    m_pData[i] = m_pData[m_nSize - 1];
                    m_nSize--;
                }
                continue;
            }
            i++;
        }
    }

    void Empty()
    {
        if (m_pData)
        {
            free(m_pData);
            m_pData = NULL;
            m_nSize = m_nMaxSize = 0;
        }
    }
    BOOL IsEmpty() const { return m_nSize == 0 ? TRUE : FALSE; }
    unsigned long Count() const { return m_nSize; }
};


#define PLUGINS_FROM_IE       0x1
#define PLUGINS_FROM_NS4X     0x2
#define PLUGINS_FROM_FIREFOX  0x4
#define PLUGINS_FROM_MOZILLA  0x8

class nsPluginHostWnd : public CWindowImpl<nsPluginHostWnd>
{
public:
    nsPluginHostWnd();
    virtual ~nsPluginHostWnd();

DECLARE_WND_CLASS(_T("MozCtrlPluginHostWindow"))

BEGIN_MSG_MAP(nsPluginHostWnd)
	MESSAGE_HANDLER(WM_CREATE, OnCreate)
	MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
	MESSAGE_HANDLER(WM_SIZE, OnSize)
	MESSAGE_HANDLER(WM_PAINT, OnPaint)
    MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
    MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
    MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUp)
//	CHAIN_MSG_MAP(CWindowImpl<nsPluginHostWnd>)
END_MSG_MAP()

// Windows message handlers
public:
	LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);
	LRESULT OnDestroy(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);
	LRESULT OnSize(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);
	LRESULT OnPaint(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);
	LRESULT OnMouseMove(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);
	LRESULT OnLButtonDown(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);
	LRESULT OnLButtonUp(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);

public:
	CComBSTR m_bstrText;

public:
    CComBSTR m_bstrContentType;
    CComBSTR m_bstrSource;
    CComBSTR m_bstrPluginsPage;

    // Array of plugins
    struct PluginInfo
    {
        TCHAR *szPluginPath;
        TCHAR *szPluginName;
        TCHAR *szMIMEType;
    };

    nsSimpleArray<PluginInfo *> m_Plugins;

    // Array of names and values to pass to the new plugin
    unsigned long m_nArgs;
    unsigned long m_nArgsMax;
    char **m_pszArgNames;
    char **m_pszArgValues;

    // Array of loaded plugins which is shared amongst instances of this control
    struct LoadedPluginInfo
    {
        TCHAR *szFullPath; // Path + plugin name
        HINSTANCE hInstance;
        DWORD nRefCount;
        NPPluginFuncs NPPFuncs;
    };

    static nsSimpleArray<LoadedPluginInfo *> m_LoadedPlugins;

    LoadedPluginInfo *m_pLoadedPlugin;

    NPWindow m_NPWindow;

    static NPNetscapeFuncs g_NPNFuncs;
    static HRESULT InitPluginCallbacks();

    HRESULT CreatePluginList(unsigned long ulFlags);
    HRESULT CreatePluginListFrom(const TCHAR *szPluginsDir);
    HRESULT CleanupPluginList();
    HRESULT GetPluginInfo(const TCHAR * pszPluginPath, PluginInfo *pInfo);

public:
    NPP_t m_NPP;
    bool m_bPluginIsAlive;
    bool m_bCreatePluginFromStreamData;
    bool m_bPluginIsWindowless;
    bool m_bPluginIsTransparent;

    nsPluginWnd m_wndPlugin;

    // Struct holding pointers to the functions within the plugin
    NPPluginFuncs m_NPPFuncs;

    virtual HRESULT GetWebBrowserApp(IWebBrowserApp **pBrowser);

    HRESULT GetBaseURL(TCHAR **szBaseURL);

	HRESULT GetPluginSource(/*[out, retval]*/ BSTR *pVal);
	HRESULT SetPluginSource(/*[in]*/ BSTR newVal);
	HRESULT GetPluginContentType(/*[out, retval]*/ BSTR *pVal);
	HRESULT SetPluginContentType(/*[in]*/ BSTR newVal);
	HRESULT GetPluginsPage(/*[out, retval]*/ BSTR *pVal);
	HRESULT SetPluginsPage(/*[in]*/ BSTR newVal);

    HRESULT AddPluginParam(const char *szName, const char *szValue);
    HRESULT LoadPluginByContentType(const TCHAR *pszContentType);
    HRESULT ReadPluginsFromGeckoAppPath(const TCHAR *szAppName);
	HRESULT LoadPlugin(const TCHAR *pszPluginPath);
    HRESULT FindPluginPathByContentType(const TCHAR *pszContentType, TCHAR **ppszPluginPath);
    HRESULT UnloadPlugin();

    HRESULT OpenURLStream(const TCHAR *szURL, void *pNotifyData, const void *pPostData, unsigned long nDataLength);

    HRESULT CreatePluginInstance();
    HRESULT DestroyPluginInstance();
    HRESULT SizeToFitPluginInstance();

    void SetPluginWindowless(bool bWindowless);
    void SetPluginTransparent(bool bTransparent);
};

#endif