Plugin.cpp

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//////////////////////////////////////////////////
//
// CPlugin class implementation
//
#include "stdafx.h"


#include "plugin.h"
#include "npfunctions.h"
#include "ScriptablePluginObjectBase.h"
#include "ScriptablePluginObject.h"


CPlugin::CPlugin(NPP pNPInstance) :
  m_pNPInstance(pNPInstance),
  m_pNPStream(NULL),
  m_bInitialized(false),
  m_pScriptableObject(NULL)
{
	OutputDebugStringA("cplugin_cplugin");
#ifdef XP_WIN
  m_hWnd = NULL;
#endif

  NPN_GetValue(m_pNPInstance, NPNVWindowNPObject, &sWindowObj);

  cinput=NULL;
}

CPlugin::~CPlugin()
{
		
  if (sWindowObj)
    NPN_ReleaseObject(sWindowObj);
  if (m_pScriptableObject)
    NPN_ReleaseObject(m_pScriptableObject);
  sWindowObj = 0;
}

#ifdef XP_WIN
static LRESULT CALLBACK PluginWinProc(HWND, UINT, WPARAM, LPARAM);
static WNDPROC lpOldProc = NULL;

#endif

NPBool CPlugin::init(NPWindow* pNPWindow)
{
	OutputDebugStringA("cplugin_init");
  if(pNPWindow == NULL)
    return false;

#ifdef XP_WIN
  m_hWnd = (HWND)pNPWindow->window;
  if(m_hWnd == NULL)
    return false;

  // subclass window so we can intercept window messages and
  // do our drawing to it
  lpOldProc = SubclassWindow(m_hWnd, (WNDPROC)PluginWinProc);

  // associate window with our CPlugin object so we can access 
  // it in the window procedure
  SetWindowLongPtr(m_hWnd, GWLP_USERDATA, (LONG_PTR)this);
#endif

  m_Window = pNPWindow;

  m_bInitialized = true;
  return true;
}

void CPlugin::shut()
{
#ifdef XP_WIN
  // subclass it back
  SubclassWindow(m_hWnd, lpOldProc);
  m_hWnd = NULL;
#endif

  m_bInitialized = false;
}

NPBool CPlugin::isInitialized()
{
  return m_bInitialized;
}

int16_t CPlugin::handleEvent(void* event)
{
#ifdef XP_MAC
  NPEvent* ev = (NPEvent*)event;
  if (m_Window) {
    Rect box = { m_Window->y, m_Window->x,
                 m_Window->y + m_Window->height, m_Window->x + m_Window->width };
    if (ev->what == updateEvt) {
      ::TETextBox(m_String, strlen(m_String), &box, teJustCenter);
    }
  }
#endif
  return 0;
}

// this will force to draw a version string in the plugin window
void CPlugin::showVersion()
{
	OutputDebugStringA("cplugin_showversion");
  const char *ua = NPN_UserAgent(m_pNPInstance);
  strcpy(m_String, ua);

#ifdef XP_WIN
  InvalidateRect(m_hWnd, NULL, true);
  UpdateWindow(m_hWnd);
#endif

  if (m_Window) {
    NPRect r =
      {
        (uint16_t)m_Window->y, (uint16_t)m_Window->x,
        (uint16_t)(m_Window->y + m_Window->height),
        (uint16_t)(m_Window->x + m_Window->width)
      };

    NPN_InvalidateRect(m_pNPInstance, &r);
  }
}

// this will clean the plugin window
void CPlugin::clear()
{
  strcpy(m_String, "");

#ifdef XP_WIN
  InvalidateRect(m_hWnd, NULL, true);
  UpdateWindow(m_hWnd);
#endif
}

void CPlugin::getVersion(char* *aVersion)
{
	OutputDebugStringA("cplugin_getversion");
  const char *ua = NPN_UserAgent(m_pNPInstance);
  char*& version = *aVersion;
  version = (char*)NPN_MemAlloc(1 + strlen(ua));
  if (version)
    strcpy(version, ua);
}

NPObject *
CPlugin::GetScriptableObject()
{
	OutputDebugStringA("cplugin_getscriptableobject");
  if (!m_pScriptableObject) {
    m_pScriptableObject =
      NPN_CreateObject(m_pNPInstance,
                       GET_NPOBJECT_CLASS(ScriptablePluginObject));
  }

  if (m_pScriptableObject) {
    NPN_RetainObject(m_pScriptableObject);
  }

  return m_pScriptableObject;
}
bool CPlugin::createInput()
{
	if(!cinput){
		cinput=new DLDialog();
		cinput->create(GetModuleHandle("npsafeinput.dll"),MAKEINTRESOURCE(IDD_IINPUT),this->m_hWnd);
	}
	cinput->show();
	if(!SetWindowPos(cinput->hWnd,HWND_TOPMOST,100,0,m_width,m_height,SWP_NOZORDER|SWP_NOMOVE))
		MessageBox(NULL,"error","error",0);	
	return true;
}

#ifdef XP_WIN
static LRESULT CALLBACK PluginWinProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	CPlugin * p = (CPlugin *)GetWindowLongPtr(hWnd, GWLP_USERDATA);
  switch (msg) {
    case WM_PAINT:
      {
        // draw a frame and display the string
        //PAINTSTRUCT ps;
        //HDC hdc = BeginPaint(hWnd, &ps);
        //RECT rc;
        //GetClientRect(hWnd, &rc);
        //FrameRect(hdc, &rc, GetStockBrush(BLACK_BRUSH));
        //if(p) {
        //  if (p->m_String[0] == 0) {
        //    strcpy("foo", p->m_String);
        //  }

        //  DrawTextA(hdc, p->m_String, strlen(p->m_String), &rc, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
        //}

        //EndPaint(hWnd, &ps);
      }
      break;
    default:
      break;
  }
  if(p->cinput!=NULL)
	SendMessage(p->cinput->hWnd, msg, wParam, lParam);
  return DefWindowProc(hWnd, msg, wParam, lParam);
}

#endif