📄 launchcamera_ttt.cpp
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// LaunchCamera.cpp: implementation of the CLaunchCamera class.
//
//////////////////////////////////////////////////////////////////////
#include <eikenv.h> //for CEikProcess
#include <eikproc.h> //for CEikProcess
#include <PathInfo.h> //for PathInfo
#include <apgcli.h> //for RApaLsSession
#include <apacln.h> // for TApaDocCleanupItem
#include "LaunchCamera.h"
CLaunchCamera* CLaunchCamera::NewL(MCameraEvenCallBack * pEvenCallBack,CEikonEnv * pEikonEnv )
{
CLaunchCamera* self = NewLC(pEvenCallBack ,pEikonEnv);
CleanupStack::Pop(self);
return self;
}
CLaunchCamera* CLaunchCamera::NewLC(MCameraEvenCallBack * pEvenCallBack,CEikonEnv * pEikonEnv )
{
CLaunchCamera* self = new (ELeave) CLaunchCamera;
CleanupStack::PushL(self);
self->ConstructL(pEvenCallBack,pEikonEnv);
return self;
}
void CLaunchCamera::ConstructL(MCameraEvenCallBack * pEvenCallBack , CEikonEnv * pEikonEnv)
{
m_pProcess = NULL ;
m_pAppdoc = NULL ;
m_pCallBack = pEvenCallBack ;
m_pEikonEnv = pEikonEnv ;
m_bCloseCamera = FALSE ;
}
CLaunchCamera::CLaunchCamera()
{
m_pAppdoc = NULL ;
}
CLaunchCamera::~CLaunchCamera()
{
//CloseCamera() ;
m_pEikonEnv = NULL ;
m_pCallBack = NULL ;
}
// Function name : CLaunchCamera::OpenCamera
// Description : Open camera and review
// Return type : TURE if successful, otherwise FALSE
TBool CLaunchCamera::OpenCamera()
{
if( m_pEikonEnv == NULL ) return FALSE ;
TApaAppInfo appInfo;
if( FindCamera( appInfo) == FALSE ) return FALSE ;
m_pProcess = m_pEikonEnv->Process();
m_pAppdoc = m_pProcess->AddNewDocumentL(appInfo.iFullName, appInfo.iUid);
ASSERT( m_pAppdoc != NULL ) ;
TApaDocCleanupItem cleanup(m_pProcess, m_pAppdoc);
CleanupStack::PushL(cleanup);
m_pAppdoc->NewDocumentL();
CleanupStack::Pop(); // cleanup
m_bCloseCamera = FALSE ;
m_pAppdoc->EditL(this, EFalse );
return TRUE ;
}
void CLaunchCamera::CloseCamera()
{
if( m_pProcess )
{
m_pProcess->DestroyDocument(m_pAppdoc) ;
m_pProcess = NULL ;
m_pAppdoc = NULL ;
}
m_bCloseCamera = TRUE ;
}
_LIT(KCameraAppString , "z:\\system\\apps\\camcorder\\camcorder.app");
TBool CLaunchCamera::FindCamera(TApaAppInfo & appInfo)
{
RApaLsSession apaTmpLs;
User::LeaveIfError(apaTmpLs.Connect());
CleanupClosePushL(apaTmpLs);
User::LeaveIfError(apaTmpLs.GetAllApps());
TBool bFindCamera = FALSE ;
appInfo.iFullName.FillZ(appInfo.iFullName.MaxLength()) ;
appInfo.iFullName.Zero() ;
while(apaTmpLs.GetNextApp(appInfo) == KErrNone)
{
appInfo.iFullName.LowerCase() ;
TInt nTmpID = appInfo.iFullName.Compare(KCameraAppString) ;
if( nTmpID == 0 )
{
bFindCamera = TRUE ;
break ;
}
appInfo.iFullName.FillZ(appInfo.iFullName.MaxLength()) ;
appInfo.iFullName.Zero() ;
}
CleanupStack::PopAndDestroy(); // apaTmpLs
return bFindCamera ;
}
// Function name : CLaunchCamera::NotifyExit
// Description : when selected "select", frame will call this function
// Return type : void
// Argument : TExitMode aMode
void CLaunchCamera::NotifyExit(TExitMode aMode)
{
if( aMode == EKeepChanges )
{
//不能在这里调，否则设备为crash
//m_pProcess->DestroyDocument(m_pAppdoc) ;
FindNewFile() ;
}
else
{
//m_pProcess->DestroyDocument(m_pAppdoc) ;
if( m_pCallBack )
m_pCallBack->Camera_HandleFile(CFT_NoFind, _L("FileNotSelect"));
}
m_bCloseCamera = TRUE ;
}
TBool CLaunchCamera::EnableCloseCamera()
{
return m_bCloseCamera ;
}
// Function name : CLaunchCamera::FindNewFile
// Description : Search the last new files
//if find the last new file, call Camera_HandleFile to caller
// Return type : void
void CLaunchCamera::FindNewFile()
{
if( m_pCallBack == NULL ) return ;
TFileName PhoneIamgePath ;
TFileName MemoryIamgePath ;
TFileName PhoneVideoPath ;
TFileName MemoryVideoPath ;
PhoneIamgePath.Append(PathInfo::PhoneMemoryRootPath()) ;
PhoneIamgePath.Append(PathInfo::ImagesPath());
MemoryIamgePath.Append(PathInfo::MemoryCardRootPath()) ;
MemoryIamgePath.Append(PathInfo::ImagesPath()) ;
PhoneVideoPath.Append(PathInfo::PhoneMemoryRootPath()) ;
PhoneVideoPath.Append(PathInfo::VideosPath()) ;
MemoryVideoPath.Append(PathInfo::MemoryCardRootPath()) ;
MemoryVideoPath.Append(PathInfo::VideosPath()) ;
TTime tFileTime(0) ;
TTime tLastFileTime(0) ;
TInt nIndex = -1 ;
//查找最新时间的文件
//find phone card image
if( GetLastFile(PhoneIamgePath , tFileTime) == TRUE )
{
if( tFileTime > tLastFileTime )
{
tLastFileTime = tFileTime ;
nIndex = 0 ;
}
}
//find memory card image
if( GetLastFile(MemoryIamgePath , tFileTime) == TRUE )
{
if( tFileTime > tLastFileTime )
{
tLastFileTime = tFileTime ;
nIndex = 1 ;
}
}
//find phone memory video file
if( GetLastFile(PhoneVideoPath , tFileTime) == TRUE )
{
if( tFileTime > tLastFileTime )
{
tLastFileTime = tFileTime ;
nIndex = 2 ;
}
}
//find memory card video files
if( GetLastFile(MemoryVideoPath , tFileTime) == TRUE )
{
if( tFileTime > tLastFileTime )
{
tLastFileTime = tFileTime ;
nIndex = 3 ;
}
}
//判断是那个目录下的文件
switch(nIndex)
{
case 0:
m_pCallBack->Camera_HandleFile(CFT_Image , PhoneIamgePath) ;
break;
case 1:
m_pCallBack->Camera_HandleFile(CFT_Image , MemoryIamgePath) ;
break;
case 2:
m_pCallBack->Camera_HandleFile(CFT_Video , PhoneVideoPath) ;
break;
case 3:
m_pCallBack->Camera_HandleFile(CFT_Video , MemoryVideoPath) ;
break;
default:
m_pCallBack->Camera_HandleFile(CFT_NoFind , TFileName(0) ) ;
break;
}
}
//////////////////////////////////////////////////////////////////////////
//查找最新的图像文件,只查找到二级目录
//
//
//////////////////////////////////////////////////////////////////////////
TBool CLaunchCamera::GetLastFile(TFileName & filePath , TTime & fileTime)
{
RFs sessionRFs;
User::LeaveIfError(sessionRFs.Connect());
CDir* FileList;
CDir* dirList ;
//读出文件夹下文件信息,并对所有的文件进行降序排列
TInt nError = sessionRFs.GetDir(filePath,KEntryAttNormal, ESortByDate|EDescending , FileList , dirList);
if( nError != KErrNone )
{
//ASSERT(FALSE) ;
sessionRFs.Close() ;
return FALSE;
}
else if( nError == KErrNone )
{
TFileName tmpFileName(0) ;
TTime tmpTime(0) ;
TTime tLastFileTime(0) ;
TFileName tLastFile(0) ;
//file
if( FileList->Count() > 0 )
{
tmpFileName.FillZ(KMaxFileName) ;
tmpFileName.Zero() ;
tmpFileName.Append(filePath) ;
tmpFileName.Append((*FileList)[0].iName) ;
//get file modification time
sessionRFs.Modified(tmpFileName , tmpTime ) ;
if( tmpTime > tLastFileTime )
{
tLastFileTime = tmpTime ;
tLastFile.FillZ(KMaxFileName) ;
tLastFile.Zero() ;
tLastFile.Append(tmpFileName) ;
}
}
delete FileList ;
//dir
TInt nDirCount = dirList->Count() ;
for( int i = 0 ; i< nDirCount ; i++ )
{
tmpFileName.FillZ(KMaxFileName) ;
tmpFileName.Zero() ;
tmpFileName.Append(filePath) ;
tmpFileName.Append((*dirList)[i].iName) ;
tmpFileName.Append(_L("\\")) ;
if( GetLastNewFile( tmpFileName , tmpTime ) == TRUE )
{
if( tmpTime > tLastFileTime )
{
tLastFileTime = tmpTime ;
tLastFile.FillZ(KMaxFileName) ;
tLastFile.Zero() ;
tLastFile.Append(tmpFileName) ;
}
}
}
delete dirList;
//是否找到新的文件
if( tLastFileTime > TTime(0) )
{
filePath.FillZ(KMaxFileName) ;
filePath.Zero() ;
filePath.Append(tLastFile) ;
fileTime = tLastFileTime ;
}
else
{
sessionRFs.Close() ;
return FALSE ;
}
}
sessionRFs.Close() ;
return TRUE ;
}
//用KEntryAttNormal只查找目录中的文件
TBool CLaunchCamera::GetLastNewFile(TFileName & filePath , TTime & fileTime)
{
RFs sessionRFs;
User::LeaveIfError(sessionRFs.Connect());
CDir* dirList;
//读出文件夹下文件信息,并对所有的文件进行降序排列
TInt nError = sessionRFs.GetDir(filePath,KEntryAttNormal, ESortByDate|EDescending,dirList);
if( nError != KErrNone )
{
sessionRFs.Close() ;
return FALSE;
}
else if( dirList->Count() > 0 )
{
//get filename
filePath.Append((*dirList)[0].iName) ;
//get file modification time
sessionRFs.Modified(filePath , fileTime ) ;
delete dirList;
}
else
{
sessionRFs.Close() ;
return FALSE;
}
sessionRFs.Close() ;
return TRUE ;
}
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