nsifile.h

linux下的一款播放器

/*
 * DO NOT EDIT.  THIS FILE IS GENERATED FROM nsIFile.idl
 */

#ifndef __gen_nsIFile_h__
#define __gen_nsIFile_h__


#ifndef __gen_nsISupports_h__
#include "nsISupports.h"
#endif

/* For IDL files that don't want to include root IDL files. */
#ifndef NS_NO_VTABLE
#define NS_NO_VTABLE
#endif
class nsISimpleEnumerator; /* forward declaration */


/* starting interface:    nsIFile */
#define NS_IFILE_IID_STR "c8c0a080-0868-11d3-915f-d9d889d48e3c"

#define NS_IFILE_IID \
  {0xc8c0a080, 0x0868, 0x11d3, \
    { 0x91, 0x5f, 0xd9, 0xd8, 0x89, 0xd4, 0x8e, 0x3c }}

/**
 * This is the only correct cross-platform way to specify a file.
 * Strings are not such a way. If you grew up on windows or unix, you
 * may think they are.  Welcome to reality.
 *
 * All methods with string parameters have two forms.  The preferred
 * form operates on UCS-2 encoded characters strings.  An alternate
 * form operates on characters strings encoded in the "native" charset.
 *
 * A string containing characters encoded in the native charset cannot
 * be safely passed to javascript via xpconnect.  Therefore, the "native
 * methods" are not scriptable. 
 *
 * @status FROZEN
 */
class NS_NO_VTABLE nsIFile : public nsISupports {
 public: 

  NS_DEFINE_STATIC_IID_ACCESSOR(NS_IFILE_IID)

  /**
     *  Create Types
     *
     *  NORMAL_FILE_TYPE - A normal file.
     *  DIRECTORY_TYPE   - A directory/folder.
     */
  enum { NORMAL_FILE_TYPE = 0U };

  enum { DIRECTORY_TYPE = 1U };

  /**
     *  append[Native]
     *
     *  This function is used for constructing a descendent of the
     *  current nsIFile.
     *
     *   @param node
     *       A string which is intended to be a child node of the nsIFile.
     *       For the |appendNative| method, the node must be in the native
     *       filesystem charset.
     */
  /* void append (in AString node); */
  NS_IMETHOD Append(const nsAString & node) = 0;

  /* [noscript] void appendNative (in ACString node); */
  NS_IMETHOD AppendNative(const nsACString & node) = 0;

  /**
     *  Normalize the pathName (e.g. removing .. and . components on Unix).
     */
  /* void normalize (); */
  NS_IMETHOD Normalize(void) = 0;

  /**
     *  create
     *
     *  This function will create a new file or directory in the
     *  file system. Any nodes that have not been created or
     *  resolved, will be.  If the file or directory already
     *  exists create() will return NS_ERROR_FILE_ALREADY_EXISTS.
     *
     *   @param type
     *       This specifies the type of file system object
     *       to be made.  The only two types at this time
     *       are file and directory which are defined above.
     *       If the type is unrecongnized, we will return an
     *       error (NS_ERROR_FILE_UNKNOWN_TYPE).
     *
     *   @param permissions
     *       The unix style octal permissions.  This may
     *       be ignored on systems that do not need to do
     *       permissions.
     */
  /* void create (in unsigned long type, in unsigned long permissions); */
  NS_IMETHOD Create(PRUint32 type, PRUint32 permissions) = 0;

  /**
     *  Accessor to the leaf name of the file itself.      
     *  For the |nativeLeafName| method, the nativeLeafName must 
     *  be in the native filesystem charset.
     */
  /* attribute AString leafName; */
  NS_IMETHOD GetLeafName(nsAString & aLeafName) = 0;
  NS_IMETHOD SetLeafName(const nsAString & aLeafName) = 0;

  /* [noscript] attribute ACString nativeLeafName; */
  NS_IMETHOD GetNativeLeafName(nsACString & aNativeLeafName) = 0;
  NS_IMETHOD SetNativeLeafName(const nsACString & aNativeLeafName) = 0;

  /**
     *  copyTo[Native]
     *
     *  This will copy this file to the specified newParentDir.
     *  If a newName is specified, the file will be renamed.
     *  If 'this' is not created we will return an error
     *  (NS_ERROR_FILE_TARGET_DOES_NOT_EXIST).
     *
     *  copyTo may fail if the file already exists in the destination 
     *  directory.
     *
     *  copyTo will NOT resolve aliases/shortcuts during the copy.
     *
     *   @param newParentDir
     *       This param is the destination directory. If the
     *       newParentDir is null, copyTo() will use the parent
     *       directory of this file. If the newParentDir is not
     *       empty and is not a directory, an error will be
     *       returned (NS_ERROR_FILE_DESTINATION_NOT_DIR). For the 
     *       |CopyToNative| method, the newName must be in the 
     *       native filesystem charset.
     *
     *   @param newName
     *       This param allows you to specify a new name for
     *       the file to be copied. This param may be empty, in
     *       which case the current leaf name will be used.
     */
  /* void copyTo (in nsIFile newParentDir, in AString newName); */
  NS_IMETHOD CopyTo(nsIFile *newParentDir, const nsAString & newName) = 0;

  /* [noscript] void CopyToNative (in nsIFile newParentDir, in ACString newName); */
  NS_IMETHOD CopyToNative(nsIFile *newParentDir, const nsACString & newName) = 0;

  /**
     *  copyToFollowingLinks[Native]
     *
     *  This function is identical to copyTo with the exception that,
     *  as the name implies, it follows symbolic links.  The XP_UNIX
     *  implementation always follow symbolic links when copying.  For 
     *  the |CopyToFollowingLinks| method, the newName must be in the 
     *  native filesystem charset.
     */
  /* void copyToFollowingLinks (in nsIFile newParentDir, in AString newName); */
  NS_IMETHOD CopyToFollowingLinks(nsIFile *newParentDir, const nsAString & newName) = 0;

  /* [noscript] void copyToFollowingLinksNative (in nsIFile newParentDir, in ACString newName); */
  NS_IMETHOD CopyToFollowingLinksNative(nsIFile *newParentDir, const nsACString & newName) = 0;

  /**
     *  moveTo[Native]
     *
     *  A method to move this file or directory to newParentDir.
     *  If a newName is specified, the file or directory will be renamed.
     *  If 'this' is not created we will return an error
     *  (NS_ERROR_FILE_TARGET_DOES_NOT_EXIST).
     *  If 'this' is a file, and the destination file already exists, moveTo
     *  will replace the old file.
     *
     *  moveTo will NOT resolve aliases/shortcuts during the copy.
     *  moveTo will do the right thing and allow copies across volumes.
     *  moveTo will return an error (NS_ERROR_FILE_DIR_NOT_EMPTY) if 'this' is
     *  a directory and the destination directory is not empty.
     *  moveTo will return an error (NS_ERROR_FILE_ACCESS_DENIED) if 'this' is
     *  a directory and the destination directory is not writable.
     *
     *   @param newParentDir
     *       This param is the destination directory. If the
     *       newParentDir is empty, moveTo() will rename the file
     *       within its current directory. If the newParentDir is
     *       not empty and does not name a directory, an error will
     *       be returned (NS_ERROR_FILE_DESTINATION_NOT_DIR).  For 
     *       the |moveToNative| method, the newName must be in the 
     *       native filesystem charset.
     *
     *   @param newName
     *       This param allows you to specify a new name for
     *       the file to be moved. This param may be empty, in
     *       which case the current leaf name will be used.
     */
  /* void moveTo (in nsIFile newParentDir, in AString newName); */
  NS_IMETHOD MoveTo(nsIFile *newParentDir, const nsAString & newName) = 0;

  /* [noscript] void moveToNative (in nsIFile newParentDir, in ACString newName); */
  NS_IMETHOD MoveToNative(nsIFile *newParentDir, const nsACString & newName) = 0;

  /**
     *  This will try to delete this file.  The 'recursive' flag
     *  must be PR_TRUE to delete directories which are not empty.
     *
     *  This will not resolve any symlinks.
     */
  /* void remove (in boolean recursive); */
  NS_IMETHOD Remove(PRBool recursive) = 0;

  /**
     *  Attributes of nsIFile.
     */
  /* attribute unsigned long permissions; */
  NS_IMETHOD GetPermissions(PRUint32 *aPermissions) = 0;
  NS_IMETHOD SetPermissions(PRUint32 aPermissions) = 0;

  /* attribute unsigned long permissionsOfLink; */
  NS_IMETHOD GetPermissionsOfLink(PRUint32 *aPermissionsOfLink) = 0;
  NS_IMETHOD SetPermissionsOfLink(PRUint32 aPermissionsOfLink) = 0;

  /**
     *  File Times are to be in milliseconds from
     *  midnight (00:00:00), January 1, 1970 Greenwich Mean
     *  Time (GMT).
     */
  /* attribute PRInt64 lastModifiedTime; */
  NS_IMETHOD GetLastModifiedTime(PRInt64 *aLastModifiedTime) = 0;
  NS_IMETHOD SetLastModifiedTime(PRInt64 aLastModifiedTime) = 0;

  /* attribute PRInt64 lastModifiedTimeOfLink; */
  NS_IMETHOD GetLastModifiedTimeOfLink(PRInt64 *aLastModifiedTimeOfLink) = 0;
  NS_IMETHOD SetLastModifiedTimeOfLink(PRInt64 aLastModifiedTimeOfLink) = 0;

  /**
     *  WARNING!  On the Mac, getting/setting the file size with nsIFile
     *  only deals with the size of the data fork.  If you need to
     *  know the size of the combined data and resource forks use the
     *  GetFileSizeWithResFork() method defined on nsILocalFileMac.
     */
  /* attribute PRInt64 fileSize; */
  NS_IMETHOD GetFileSize(PRInt64 *aFileSize) = 0;
  NS_IMETHOD SetFileSize(PRInt64 aFileSize) = 0;

  /* readonly attribute PRInt64 fileSizeOfLink; */
  NS_IMETHOD GetFileSizeOfLink(PRInt64 *aFileSizeOfLink) = 0;

  /**
     *  target & path
     *
     *  Accessor to the string path.  The native version of these
     *  strings are not guaranteed to be a usable path to pass to
     *  NSPR or the C stdlib.  There are problems that affect
     *  platforms on which a path does not fully specify a file
     *  because two volumes can have the same name (e.g., XP_MAC).
     *  This is solved by holding "private", native data in the
     *  nsIFile implementation.  This native data is lost when
     *  you convert to a string.
     *
     *      DO NOT PASS TO USE WITH NSPR OR STDLIB!
     *
     *  target
     *      Find out what the symlink points at.  Will give error
     *      (NS_ERROR_FILE_INVALID_PATH) if not a symlink.
     *
     *  path
     *      Find out what the nsIFile points at.
     *
     *  Note that the ACString attributes are returned in the 
     *  native filesystem charset.
     *
     */
  /* readonly attribute AString target; */
  NS_IMETHOD GetTarget(nsAString & aTarget) = 0;

  /* [noscript] readonly attribute ACString nativeTarget; */