extensions.c

brew上创建extension的实例

				
			}

			if(wParam == AVK_2)
			{
				pMe->m_bValid = 0;
				
				//IAPPLETCTL_Stop(pMe->m_pAppletCtl,AEECLSID_BKGAPPLET);
				//ISHELL_CloseApplet(pMe->a.m_pIShell,FALSE);

				
			}

			if(wParam == AVK_3)
			{
				ISHELL_Notify(pMe->a.m_pIShell,AEECLSID_FRONTAPPLET,NOTIFY_MASK_FRONT_IDLE_EVENT,NULL);
				
			}

			
      		return(TRUE);


        // If nothing fits up to this point then we'll just break out
        default:
            break;
   }

   return FALSE;
}


// this function is called when your application is starting up
boolean extensions_InitAppData(FrontApplet* pMe)
{
    // Get the device information for this handset.
    // Reference all the data by looking at the pMe->DeviceInfo structure
    // Check the API reference guide for all the handy device info you can get
    pMe->DeviceInfo.wStructSize = sizeof(pMe->DeviceInfo);
    ISHELL_GetDeviceInfo(pMe->a.m_pIShell,&pMe->DeviceInfo);
	
	pMe->m_pcBuffer = MALLOC(MAX_FILE_LENGTH*sizeof(AECHAR*));
	pMe->m_iBufferSize = MAX_FILE_LENGTH;

	ISHELL_CreateInstance(pMe->a.m_pIShell,AEECLSID_EXT2,&(pMe->pIExtension2));
	ISHELL_CreateInstance(pMe->a.m_pIShell,AEECLSID_EXT1,&(pMe->pIExtension1));
	ISHELL_CreateInstance(pMe->a.m_pIShell,AEECLSID_APPLETCTL,&(pMe->m_pAppletCtl));
	
    pMe->m_bValid = 1;

	CALLBACK_Init(&pMe->m_cbRedraw, (PFNNOTIFY)FrontApplet_RedrawNotify, pMe);

    // Insert your code here for initializing or allocating resources...



    // if there have been no failures up to this point then return success
    return TRUE;
}

// this function is called when your application is exiting
void extensions_FreeAppData(FrontApplet* pMe)
{
	FrontApplet *po = (FrontApplet*)pMe;

	FREEIF(po->m_pcBuffer);

	EXTENSION_CancelRedraw(po);
	EXTENSION_RELEASEIF(po->m_pAppletCtl);

	if(NULL != po->pIExtension1)
	{
		IExtension1_Release(po->pIExtension1);
	}

	if(NULL != po->pIExtension2)
	{
		IExtension2_Release(po->pIExtension2);
	}

}



static void FrontApplet_DrawText(FrontApplet* pMe,AECHAR* pcBuffer)
{

	AEEPoint point ;
	point.x = 10;
	point.y = 10;

//	ISHELL_SetTimer(pMe->a.m_pIShell, FRONT_DRAW_TIMER, (PFNNOTIFY)FrontApplet_DrawText, pMe);
	
	//pcBuffer = IExtension1_GetStoredData(pMe->pIExtension1);
	IExtension2_DrawHello(pMe->pIExtension2,point,pMe->m_pcBuffer);
	return;
}

static void FrontApplet_RedrawNotify(FrontApplet* pMe)
{

    DBGPRINTF("current num is aaaa " );
	FrontApplet_DrawText(pMe,NULL);
	FrontApplet_Redraw(pMe);
	
}

static void FrontApplet_Redraw(FrontApplet* pMe)
{
	
	//ISHELL_SetTimer(pMe->a.m_pIShell, FRONT_DRAW_TIMER, (PFNNOTIFY)FrontApplet_Redraw, pMe);
	if(pMe->m_bValid)
	{
		ISHELL_Resume(pMe->a.m_pIShell,&pMe->m_cbRedraw);
	}
	
}

static  boolean BkgApplet_HandleEvent(BkgApplet* pMe, AEEEvent eCode, 
                                             uint16 wParam, uint32 dwParam)
{
	 switch (eCode) 
	{
        // App is told it is starting up
        case EVT_APP_START: 

		    if(pMe->m_bGoBg)
            {
                ISHELL_CloseApplet(pMe->a.m_pIShell, FALSE); // send applet to background
            }

            return(TRUE);

		case EVT_BKG_REFRESH_FILE:
			//restart save files
			pMe->m_iPosition = 0;
			return (TRUE);

		case EVT_NOTIFY:
			if(pMe->m_bGoBg)
			{
				pMe->m_bGoBg = FALSE;
				ISHELL_StartApplet(pMe->a.m_pIShell, AEECLSID_BKGAPPLET); // make applet active
			}
			else
			{
				pMe->m_bGoBg = TRUE;
				ISHELL_CloseApplet(pMe->a.m_pIShell, FALSE); // trigger EVT_APP_STOP to send app to
				// background
			}

			return (TRUE);

		case EVT_APP_START_BACKGROUND:
			/*start timer to refresh data in buffer*/
			ISHELL_SetTimer(pMe->a.m_pIShell, BKG_DRAW_TIMER, (PFNNOTIFY)BkgApplet_RefreshData, pMe);
			
			return TRUE;
			

        // App is told it is exiting
        case EVT_APP_STOP:

			if(pMe->m_bGoBg)
			{
				*((boolean*) dwParam) = FALSE; // set dwParam to run in bg
			}

            // Add your code here...
			ISHELL_CancelTimer(pMe->a.m_pIShell, (PFNNOTIFY)BkgApplet_RefreshData, pMe);
			
		//	BkgApplet_FreeAppData(pMe);

      		return(TRUE);


        // App is being suspended 
        case EVT_APP_SUSPEND:
		    // Add your code here...

      		return(TRUE);


        // App is being resumed
        case EVT_APP_RESUME:
		    // Add your code here...

      		return(TRUE);


        // An SMS message has arrived for this app. Message is in the dwParam above as (char *)
        // sender simply uses this format "//BREW:ClassId:Message", example //BREW:0x00000001:Hello World
        case EVT_APP_MESSAGE:
		    // Add your code here...

      		return(TRUE);

        // A key was pressed. Look at the wParam above to see which key was pressed. The key
        // codes are in AEEVCodes.h. Example "AVK_1" means that the "1" key was pressed.
        case EVT_KEY:
		    // Add your code here...

      		return(TRUE);


        // If nothing fits up to this point then we'll just break out
        default:
            break;
   }

   return FALSE;
}

static void BkgApplet_RefreshData(BkgApplet* pMe)
{
	int iPos = 0;
	int iDataLen = 10;
	AECHAR* pszBuffer = NULL;

	uint32 iResult = SUCCESS;

	if(pMe->m_iPosition >= MAX_FILE_LENGTH)
	{
		pMe->m_iPosition = 0;
	}


	//start timer again.
	iResult = ISHELL_SetTimer(pMe->a.m_pIShell, BKG_DRAW_TIMER, (PFNNOTIFY)BkgApplet_RefreshData, pMe);
	
	DBGPRINTF("current file position is %d",pMe->m_iPosition);

	if(SUCCESS == iResult)
	{
		iResult = IExtension1_ReadFromFile(pMe->pIExtension1,"test.txt",pMe->m_iPosition,iDataLen);
	}

	if(SUCCESS == iResult)
	{
		pMe->m_iPosition += iDataLen;//next read start
		
		pszBuffer = IExtension1_GetStoredData(pMe->pIExtension1);
		if(NULL != pszBuffer)
		{
			iResult == SUCCESS;
		}
		
	}

	if(SUCCESS == iResult)
	{
		//assure the AEECLSID_FRONTAPPLET is the top active applet before redraw operation.
		if(AEECLSID_FRONTAPPLET != ISHELL_ActiveApplet(pMe->a.m_pIShell))
		{
			ISHELL_StartApplet(pMe->a.m_pIShell,AEECLSID_FRONTAPPLET);
			
		}

	}
	
	if(SUCCESS == iResult)
	{
		ISHELL_PostEvent(pMe->a.m_pIShell,AEECLSID_FRONTAPPLET,EVT_BKG_REFRESH_DATA,(uint16)iDataLen,(uint32)pszBuffer);
		
	}

    return;
}

boolean BkgApplet_InitAppData(BkgApplet* pMe)
{
	pMe->m_iPosition = 0;
	pMe->m_bGoBg = TRUE;
	ISHELL_CreateInstance(pMe->a.m_pIShell,AEECLSID_EXT1,(void*)&(pMe->pIExtension1));
	ISHELL_RegisterNotify(pMe->a.m_pIShell,AEECLSID_BKGAPPLET,AEECLSID_FRONTAPPLET,NOTIFY_MASK_FRONT_IDLE_EVENT);

				
	return TRUE;
}	

void BkgApplet_FreeAppData(BkgApplet* pMe)
{
	BkgApplet *po = pMe;
	
	if(NULL != pMe->pIExtension1)
	{
		IExtension1_Release(pMe->pIExtension1);
	}

	
	return;
}








/*===========================================================================
   This function releases IBase.
===========================================================================*/
static void Extension_FreeIF(IBase ** ppif)
{
   if (ppif && *ppif)
   {
      IBASE_Release(*ppif);
      *ppif = NULL;
   }
}