#include <PalmOS.h>

typedef struct
{
	UInt8 count;
	UInt8 isActive;
	UInt32 prevAppCreatorID;
} GlobalValType;

static void asm GlobalVal (void)
{
	DC.B 0 //count用の領域
	DC.B false //動作中かいなかのフラグ
	DC.L 'strt' //prevAppCreatorID用の領域
}

static Err callbackFunc (SysNotifyParamType *notifyParamsP)
{
	GlobalValType* GlobalValP = (GlobalValType*)&GlobalVal; //グローバル領域のアドレス取得

	WinDrawChars ((Char*)&GlobalValP->prevAppCreatorID, 4, 10, 10);
											//クリエータIDの描画
	UInt16 cardNo;
	LocalID dbID;

	SysCurAppDatabase (&cardNo, &dbID); //今動作しているアプリケーションの取得

	UInt32 curAppCreatorID;

	DmDatabaseInfo (cardNo, dbID, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
						&curAppCreatorID);	//クリエータIDの取得


	Boolean isSame = (GlobalValP->prevAppCreatorID == curAppCreatorID);
											//前回呼ばれたときとの比較

	UInt8 tmpCount = GlobalValP->count;
	Char tmpCountA[5];

	if (isSame)
	{
		StrIToA (tmpCountA, ++tmpCount);
	}
	else
	{
		StrIToA (tmpCountA, tmpCount);
		tmpCount = 1;
	}

	WinDrawChars (tmpCountA, StrLen (tmpCountA), 10, 25);
											//カウント数の描画

	//グローバル領域への書き込み
	MemSemaphoreReserve (true);
	GlobalValP->prevAppCreatorID = curAppCreatorID;
	GlobalValP->count = tmpCount;
	MemSemaphoreRelease (true);

	return errNone;
}

static void activate (void)
{
	GlobalValType* GlobalValP = (GlobalValType*)&GlobalVal; //グローバル領域のアドレス取得

	if(!GlobalValP->isActive)
	{
		UInt16 cardNo;
		LocalID dbID;

		SysCurAppDatabase (&cardNo, &dbID); //今動作しているアプリケーションの取得

		SysNotifyRegister (cardNo, dbID, sysNotifyMenuCmdBarOpenEvent,
			&callbackFunc, sysNotifyNormalPriority, NULL);

		DmDatabaseProtect (cardNo, dbID, true);

		//グローバル領域への書き込み
		MemSemaphoreReserve (true);
		GlobalValP->isActive = true; //動作中のフラグをセット
		MemSemaphoreRelease (true);
	}
}

UInt32 PilotMain (UInt16 cmd, MemPtr cmdPBP, UInt16 launchFlags)
{
	switch (cmd)
		{
		case sysAppLaunchCmdNormalLaunch:
			activate ();
			break;
		
		case sysAppLaunchCmdSystemReset:
			GlobalValType* GlobalValP = (GlobalValType*)&GlobalVal; //グローバル領域のアドレス取得
			//グローバル領域への書き込み
			MemSemaphoreReserve (true);
			GlobalValP->isActive = true; //動作中のフラグをリセット
			MemSemaphoreRelease (true);
		}
	return true;
}