commands/play/play.h
author Tom Sutcliffe <thomas.sutcliffe@accenture.com>
Thu, 26 Aug 2010 00:49:35 +0100
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parent 0 7f656887cf89
permissions -rw-r--r--
Added ENotifyKeypresses and ECaptureCtrlC flags to CCommandBase. Commands can now get keypresses and handle ctrl-C via callbacks instead of having to implement custom active objects. As part of this extended the CCommandBase extension interface to MCommandExtensionsV2 for the new virtual functions KeyPressed(TUint aKeyCode, TUint aModifiers) and CtrlCPressed(). sudo now cleans up correctly by using ECaptureCtrlC.
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// play.h
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// 
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// Copyright (c) 2005 - 2010 Accenture. All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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// 
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// Initial Contributors:
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// Accenture - Initial contribution
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//
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#ifndef __PLAY_H__
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#define __PLAY_H__
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#include <fshell/ioutils.h>
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#include <MdaAudioSampleEditor.h>
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using namespace IoUtils;
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class CMmfPlayer;
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class CCmdPlay	: public CCommandBase
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	{
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public:
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	static CCommandBase* NewLC();
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	~CCmdPlay();
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private: // From CCommandBase.
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	virtual const TDesC& Name() const;
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	virtual void DoRunL();
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	virtual void OptionsL(RCommandOptionList& aOptions);
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	virtual void ArgumentsL(RCommandArgumentList& aArguments);
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private:
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	CCmdPlay();
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	void ConstructL();
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private:
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	CMmfPlayer* iPlayer;
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	TFileName2 iFile;
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	TInt iPriority;
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	TInt iPreference;
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	TInt iVolume;
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	TBool iVerbose;
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	TBool iMaxVolume;
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	};
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class CConsoleKeystrokeNotifier;
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class CMmfPlayer : public CActive, public MMdaObjectStateChangeObserver
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	{
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public:
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	static CMmfPlayer* NewL(RIoConsoleWriteHandle& aStdOut);
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	virtual ~CMmfPlayer();
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	TInt GetMaxVolume();
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	TInt Error();
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	void GetReady(const TDesC& aFileName, TBool aVerbose);
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	void SetPriority(TInt aPriority, TInt iPreference);
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	void SetVolume(TInt aVolume);
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	virtual void RunL();
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	virtual TInt RunError(TInt aError);
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	virtual void DoCancel();
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	virtual void MoscoStateChangeEvent(CBase *aObject, TInt aPreviousState, TInt aCurrentState, TInt aErrorCode);
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	void KeyStroke(TKeyCode aCode);
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private:
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	CMmfPlayer(RIoConsoleWriteHandle& aStdOut);
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	void ConstructL();
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	void Message(TRefByValue<const TDesC> aFmt, ...);
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	void ProcessL();
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	void Error(TInt aError);
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	void Stop();
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private:
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	RIoConsoleWriteHandle& iStdOut;
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	TBuf<0x200> iMsgBuf;
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	const TDesC* iFileName;
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	enum TState
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		{
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		EInitial,
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		EOpening,
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		EPlaying,
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		};
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	TState iState;
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	CMdaAudioRecorderUtility* iUtil;
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	TInt iVolume;
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	TBool iVerbose;
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	TInt iError;
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	};
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class TTruncateOverflow : public TDes16Overflow
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	{
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	virtual void Overflow(TDes16& /*aDes*/) {};
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	};
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#endif // __PLAY_H__