FileSystemEntry.moveTo()

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The FileSystemEntry interface's method moveTo() moves the file specified by the entry to a new location on the file system, or renames the file if the destination directory is the same as the source. There are some typical restrictions on what you can do:

  • A directory can't be moved into itself.
  • An entry can't be moved into its parent directory unless you specify a new name. Specifying a new name lets moveTo() double as a rename operation.
  • When moving a directory, the move is always recursive; you can't leave out subfolders.
  • You can't move a file such that it replaces an existing directory, and you can't move a directory such that it replaces an existing file. However, a file can replace a file and a directory can replace a directory.
  • You can only overwrite a directory if it's empty.

Syntax

FileSystemEntry.moveTo(newParent[, newName][, successCallback][, errorCallback]);

Parameters

newParent
A FileSystemDirectoryEntry object specifying the destination directory for the move operation.
newName Optional
If this parameter is provided, the entry is renamed to have this string as its new file or directory name.
successCallback Optional
A function which is called when the move operation is succesfully completed. Receives a single input parameter: a FileSystemEntry based object providing the moved item's new details.
errorCallback Optional
An optional callback which is executed if an error occurs while moving the items. There's a single parameter: a FileError describing what went wrong.

Return value

undefined.

Errors

FileError.INVALID_MODIFICATION_ERR
The requested operation involves an impossible change, such as moving a directory inside itself or one of its own child directories, or copying an item within the same directory without renaming it.
FileError.QUOTA_EXCEEDED_ERR
The operation exceeded the user's storage quota, or there isn't enough storage space left to complete the operation.

Example

This example shows how a temporary log file might be moved into a more permanent "log" directory when it exceeds a megabyte in size.

workingDirectory.getFile("tmp/log.txt", {}, function(fileEntry) {
  fileEntry.getMetadata(function(metadata) {
    if (metadata.size > 1048576) {
      workingDirectory.getDirectory("log", {}, function(dirEntry) {
        fileEntry.moveTo(dirEntry);
      }, handleError);
    }
  });
}, handleError);

Specifications

Specification Status Comment
File and Directory Entries API
The definition of 'moveTo()' in that specification.
Draft Initial specification.

This API has no official W3C or WHATWG specification.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
ExperimentalNon-standard
Chrome Full support 13Edge ? Firefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.

See also

Document Tags and Contributors

Contributors to this page: fscholz, Sheppy
Last updated by: fscholz,