ansphonecallwatcher.h

来自「symbianOS第三版开发与实用教程部分源码和部分试验」· C头文件 代码 · 共 46 行

#ifndef ANSPHONECALLWATCHER_H_
#define ANSPHONECALLWATCHER_H_

#include <etel.h>

class MAnsPhoneCallWatcherObserver
	{
	public:
		virtual void HandleCallInChangeL(const RCall::TStatus& aStatus) = 0;
	};



class CAnsPhoneCallWatcher	:	public CActive
	{
	public:
		static CAnsPhoneCallWatcher* NewL(MAnsPhoneCallWatcherObserver& aObserver, RLine& aLine);
		~CAnsPhoneCallWatcher();

	public:				// CActive
		virtual void RunL();
		virtual void DoCancel();

	private:
		//	the state of this object governs what happens when the
		//	StartL() / Stop() / RunL() / DoCancel() functions are called.
		enum TState	{ EWaiting, EAnswering, EWatching };

	private:
		CAnsPhoneCallWatcher(MAnsPhoneCallWatcherObserver& aObserver, RLine& aLine);
		void ConstructL();

	private:
		void StartL();
		void Stop();

	private:
		MAnsPhoneCallWatcherObserver&	iObserver;
		RLine&					iLine;
		RCall					iCall;
		TName					iCallName;
		RCall::TStatus			iCallStatus;
		TState					iState;
	};
#endif /*ANSPHONECALLWATCHER_H_*/