# Yahoo! UI Library

### Uploader 2.5.1

Yahoo! UI Library > uploader > YAHOO.widget.Uploader

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## Class YAHOO.widget.Uploader - uses YAHOO.widget.FlashAdapter

Uploader class for the YUI Uploader component.

### Constructor

YAHOO.widget.Uploader `( containerId )`

Parameters:
  `containerId <HTMLElement>` Container element for the Flash Player instance.

### Properties

#### Chart.SWFURL `- private static final object`

Location of the Uploader SWF
Default Value: "assets/uploader.swf"

#### Properties inherited from YAHOO.widget.FlashAdapter:

`_attributes, _id, _swf, _swfURL`

#### Properties inherited from YAHOO.util.AttributeProvider:

`_configs`

#### Properties inherited from YAHOO.util.EventProvider:

`__yui_events, __yui_subscribers`

### Methods

#### browse

`void browse ( allowMultiple , extensionFilterArray )`
Invokes the "Open File" dialog and allows the user to select the files for upload

Parameters:
  `allowMultiple <Boolean>` If true, allows for multiple file selection; if false, only a single file can be selected. False by default.
  `extensionFilterArray <Array} An array of key-value pairs for permissible file extensions. The array elements should be of the form: {description: "Images", extensions: "*.jpg; *.gif; *.png">` .

Returns: `void`

#### cancel

`void cancel ( fileID )`
Cancels the upload of a specified file. If no file id is specified, all ongoing uploads are cancelled.

Parameters:
  `fileID <String>` The ID of the file whose upload should be cancelled.

Returns: `void`

#### clearFileList

`void clearFileList ( )`
Clears the list of files queued for upload.

Returns: `void`

#### removeFile

`void removeFile ( fileID )`
Removes the specified file from the upload queue.

Parameters:
  `fileID <String>` The id of the file to remove from the upload queue.

Returns: `void`

#### upload

`void upload ( fileID , uploadScriptPath , method , vars , fieldName )`
Starts the upload of the file specified by fileID to the location specified by uploadScriptPath.

Parameters:
  `fileID <String>` The id of the file to start uploading.
  `uploadScriptPath <String>` The URL of the upload location.
  `method <String>` Either "GET" or "POST", specifying how the variables accompanying the file upload POST request should be submitted. "GET" by default.
  `vars <Object>` The object containing variables to be sent in the same request as the file upload.
  `fieldName <String>` The name of the variable in the POST request containing the file data. "Filedata" by default.

Returns: `void`

#### uploadAll

`void uploadAll ( uploadScriptPath , method , vars , fieldName )`
Starts uploading all files in the queue. If this function is called, the upload queue is automatically managed.

Parameters:
  `uploadScriptPath <String>` The URL of the upload location.
  `method <String>` Either "GET" or "POST", specifying how the variables accompanying the file upload POST request should be submitted. "GET" by default.
  `vars <Object>` The object containing variables to be sent in the same request as the file upload.
  `fieldName <String>` The name of the variable in the POST request containing the file data. "Filedata" by default.

Returns: `void`

#### Methods inherited from YAHOO.widget.FlashAdapter:

`_embedSWF, _eventHandler, _getSWFURL, _initAttributes, _loadHandler, toString`

#### Methods inherited from YAHOO.util.AttributeProvider:

`configureAttribute, fireBeforeChangeEvent, fireChangeEvent, get, getAttributeConfig, getAttributeKeys, refresh, register, resetAttributeConfig, resetValue, set, setAttributeConfig, setAttributes`

#### Methods inherited from YAHOO.util.EventProvider:

`createEvent, fireEvent, hasEvent, subscribe, unsubscribe, unsubscribeAll`

### Events

#### fileSelect

`fileSelect ( event.type , event.fileList , event.fileList[].size , event.fileList[].cDate , event.fileList[].mDate , event.fileList[].name , event.fileList[].id )`
Fires when the user has finished selecting files in the "Open File" dialog.

Parameters:
  `event.type <String>` The event type
  `event.fileList <Array>` An array of objects with file information
  `event.fileList[].size <Number>` File size in bytes for a specific file in fileList
  `event.fileList[].cDate <Date>` Creation date for a specific file in fileList
  `event.fileList[].mDate <Date>` Modification date for a specific file in fileList
  `event.fileList[].name <String>` File name for a specific file in fileList
  `event.fileList[].id <String>` Unique file id of a specific file in fileList

#### uploadCancel

`uploadCancel ( event.type , event.id )`
Fires when an upload for a specific file is cancelled.

Parameters:
  `event.type <String>` The event type
  `event.id <String>` The id of the file with which the upload has been cancelled.

#### uploadComplete

`uploadComplete ( event.type , event.id )`
Fires when an upload for a specific file is complete.

Parameters:
  `event.type <String>` The event type
  `event.id <String>` The id of the file for which the upload has been completed.

#### uploadCompleteData

`uploadCompleteData ( event.type , event.id , event.data )`
Fires when the server sends data in response to a completed upload.

Parameters:
  `event.type <String>` The event type
  `event.id <String>` The id of the file for which the upload has been completed.
  `event.data <String>` The raw data returned by the server in response to the upload.

#### uploadError

`uploadError ( event.type , event.id , event.status )`
Fires when an upload error occurs.

Parameters:
  `event.type <String>` The event type
  `event.id <String>` The id of the file that was being uploaded when the error has occurred.
  `event.status <String>` The status message associated with the error.

#### uploadProgress

`uploadProgress ( event.type , event.id , bytesLoaded , bytesTotal )`
Fires when new information about the upload progress for a specific file is available.

Parameters:
  `event.type <String>` The event type
  `event.id <String>` The id of the file with which the upload progress data is associated
  `bytesLoaded <Number>` The number of bytes of the file uploaded so far
  `bytesTotal <Number>` The total size of the file

#### uploadStart

`uploadStart ( event.type , event.id )`
Fires when an upload of a specific file has started.

Parameters:
  `event.type <String>` The event type
  `event.id <String>` The id of the file that's started to upload

#### Events inherited from YAHOO.widget.FlashAdapter:

`backgroundColorChange, beforeBackgroundColorChange, beforeExpressInstallChange beforeSwfURLChange beforeVersionChange beforeWmodeChange contentReady expressInstallChange swfURLChange versionChange wmodeChange`

#### Configuration attributes inherited from YAHOO.widget.FlashAdapter:

`backgroundColor, expressInstall, swfURL version wmode`

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