Back to index

lightning-sunbird  0.9+nobinonly
Public Member Functions | Private Attributes
nsDriveEnumerator Class Reference
Inheritance diagram for nsDriveEnumerator:
Inheritance graph
[legend]
Collaboration diagram for nsDriveEnumerator:
Collaboration graph
[legend]

List of all members.

Public Member Functions

 nsDriveEnumerator ()
virtual ~nsDriveEnumerator ()
NS_DECL_ISUPPORTS
NS_DECL_NSISIMPLEENUMERATOR
nsresult 
Init ()
 nsDriveEnumerator ()
virtual ~nsDriveEnumerator ()
NS_DECL_ISUPPORTS
NS_DECL_NSISIMPLEENUMERATOR
nsresult 
Init ()
boolean hasMoreElements ()
 Called to determine whether or not the enumerator has any elements that can be returned via getNext().
nsISupports getNext ()
 Called to retrieve the next element in the enumerator.

Private Attributes

PRUint32 mDrives
PRUint8 mLetter
nsCString mDrives
const char * mLetter

Detailed Description

Definition at line 399 of file nsLocalFileOS2.cpp.


Constructor & Destructor Documentation

Definition at line 417 of file nsLocalFileOS2.cpp.

 : mDrives(0), mLetter(0)
{
}

Definition at line 422 of file nsLocalFileOS2.cpp.

{
}

Member Function Documentation

nsISupports nsISimpleEnumerator::getNext ( ) [inherited]

Called to retrieve the next element in the enumerator.

The "next" element is the first element upon the first call. Must be pre-ceeded by a call to hasMoreElements() which returns PR_TRUE. This method is generally called within a loop to iterate over the elements in the enumerator.

See also:
hasMoreElements()
Returns:
NS_OK if the call succeeded in returning a non-null value through the out parameter. NS_ERROR_FAILURE if there are no more elements to enumerate.
the next element in the enumeration.

Here is the caller graph for this function:

Called to determine whether or not the enumerator has any elements that can be returned via getNext().

This method is generally used to determine whether or not to initiate or continue iteration over the enumerator, though it can be called without subsequent getNext() calls. Does not affect internal state of enumerator.

See also:
getNext()
Returns:
PR_TRUE if there are remaining elements in the enumerator. PR_FALSE if there are no more elements in the enumerator.

Here is the caller graph for this function:

NS_DECL_ISUPPORTS NS_DECL_NSISIMPLEENUMERATOR nsresult nsDriveEnumerator::Init ( )

Definition at line 426 of file nsLocalFileOS2.cpp.

{
    ULONG   ulCurrent;

    // bits 0-25 in mDrives represent each possible drive, A-Z
    DosError(FERR_DISABLEHARDERR);
    APIRET rc = DosQueryCurrentDisk(&ulCurrent, (PULONG)&mDrives);
    DosError(FERR_ENABLEHARDERR);
    if (rc)
        return NS_ERROR_FAILURE;

    mLetter = 'A';
    return NS_OK;
}

Member Data Documentation

Definition at line 103 of file nsLocalFileWin.cpp.

Definition at line 411 of file nsLocalFileOS2.cpp.

Definition at line 104 of file nsLocalFileWin.cpp.

Definition at line 412 of file nsLocalFileOS2.cpp.


The documentation for this class was generated from the following files: