1 /*

     2 * Copyright (c) 2010 ISB.

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the "Symbian Foundation License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * ISB - Initial contribution

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #ifndef ECAMWEBCAMERAACTIVE_H

    19 #define ECAMWEBCAMERAACTIVE_H

    20 

    21 #include "ecamwebcameraplugin.h"

    22 

    23 /**

    24  *  Perform an Async demand of the camera application

    25  */

    26 class CWebCameraActive : public CActive

    27 	{

    28 private:

    29 	

    30 	/**

    31     Active Operation of ECamWebCamera

    32     */

    33 	enum TECamWebCameraActiveOperation

    34 		{

    35 		ECamActiveIdle = 0,

    36 		ECamActiveReserve,

    37 		ECamActivePowerOn,

    38 		ECamActiveImageCapture,

    39 		};

    40 

    41 public:

    42     /** Constructor */

    43     /**

    44      * @param aOwner 

    45      		  pointer to callback object.

    46      * @param aDriver 

    47      		  reference to driver.

    48      */

    49     CWebCameraActive(MWebCameraActiveCallBack* aOwner, RWebcameraDevice& aDriver);

    50 	

    51 	/**> Destructor */

    52 	~CWebCameraActive();

    53 	

    54     /**

    55      * Two-phased constructor.

    56      * @param aOwner 

    57      		  pointer to callback object.

    58      * @param aDriver 

    59      		  reference to driver.

    60      */

    61 	static CWebCameraActive* NewL(MWebCameraActiveCallBack* aOwner, RWebcameraDevice& aDriver);

    62 

    63 	/** 

    64 	Asynchronous function that performs any required initialisation and reserves

    65 	the camera for exclusive use.

    66 

    67 	Calls CWebCamera::ReserveCallBack when complete. 

    68 	*/

    69 	void Reserve();

    70 

    71 	/** 

    72 	Asynchronous method to switch on camera power.

    73 

    74 	User must have successfully called Reserve() prior to calling this function.

    75 

    76 	Calls CWebCamera::PowerOnCallBack when power on is complete. 

    77 	*/

    78 	void PowerOn();

    79 	

    80 	/** 

    81 	Cancels the asynchronous still image capture. 

    82 	

    83 	Calls CWebCamera::ImageCaptureCallBack when capture is complete. 

    84 	

    85 	* @param aDes descriptor to store a capture image

    86 	*/

    87 	void ImageCapture(TDes8& aDes);

    88 	

    89 	/** 

    90 	Cancels the asynchronous still image capture. 

    91 	

    92 	@see CWebCamera::CancelCaptureImage

    93 	*/

    94 	void CancelCaptureImage();

    95 

    96 private:

    97 	void ConstructL();

    98 

    99 private:

   100     /**

   101      * RunL.

   102      */

   103 	void RunL();

   104 	void DoCancel();

   105 	void ViewFinderComplete(TInt aError);

   106 

   107 private:

   108 

   109 	MWebCameraActiveCallBack*		iOwner;		// origin of start.

   110 	TECamWebCameraActiveOperation	iOperation;	// Status of the Active Operation of ECamWebCamera

   111 	RWebcameraDevice				iDriver;	// Camera driver

   112 	};

   113 

   114 

   115 #endif // ECAMWEBCAMERAPLUGIN_H