com.gargoylesoftware.htmlunit.javascript.host.file

Class FileReader

java.lang.Object

net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

com.gargoylesoftware.htmlunit.javascript.HtmlUnitScriptable

com.gargoylesoftware.htmlunit.javascript.host.event.EventTarget

com.gargoylesoftware.htmlunit.javascript.host.file.FileReader

All Implemented Interfaces:

Serializable, Cloneable, net.sourceforge.htmlunit.corejs.javascript.ConstProperties, net.sourceforge.htmlunit.corejs.javascript.debug.DebuggableObject, net.sourceforge.htmlunit.corejs.javascript.Scriptable, net.sourceforge.htmlunit.corejs.javascript.SymbolScriptable

public class FileReader
extends EventTarget

A JavaScript object for FileReader.

Author:

Ahmed Ashour, Ronald Brill

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

net.sourceforge.htmlunit.corejs.javascript.ScriptableObject.KeyComparator

Field Summary

Fields

Modifier and Type	Field and Description
static short	DONE The entire read request has been completed.
static short	EMPTY No data has been loaded yet.
static short	LOADING Data is currently being loaded.

Fields inherited from class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

CONST, DONTENUM, PERMANENT, READONLY, UNINITIALIZED_CONST

Fields inherited from interface net.sourceforge.htmlunit.corejs.javascript.Scriptable

NOT_FOUND

Constructor Summary

Constructors

Constructor and Description
FileReader() Creates an instance.

Method Summary

Modifier and Type	Method and Description
net.sourceforge.htmlunit.corejs.javascript.Function	getOnerror() Returns the onerror event handler for this FileReader.
net.sourceforge.htmlunit.corejs.javascript.Function	getOnload() Returns the onload event handler for this FileReader.
int	getReadyState() Returns the current state of the reading operation.
Object	getResult() Returns the file's contents.
void	readAsArrayBuffer(Object object) Reads the contents of the specified Blob or File.
void	readAsDataURL(Object object) Reads the contents of the specified Blob or File.
void	readAsText(Object object, Object encoding) Reads the contents of the specified Blob or File.
void	setOnerror(Object onerror) Sets the onerror event handler for this FileReader.
void	setOnload(Object onload) Sets the onload event handler for this FileReader.

Methods inherited from class com.gargoylesoftware.htmlunit.javascript.host.event.EventTarget

addEventListener, clearEventListenersContainer, dispatchEvent, executeEventLocally, fireEvent, getEventHandler, getEventListenersContainer, hasEventHandlers, isEventHandlerOnWindow, removeEventListener, setEventHandler

Methods inherited from class com.gargoylesoftware.htmlunit.javascript.HtmlUnitScriptable

clone, equivalentValues, get, getBrowserVersion, getClassName, getDefaultValue, getDomNodeOrDie, getDomNodeOrNull, getPrototype, getScriptableFor, getStartingScope, getWindow, getWindow, getWithPreemption, has, hasInstance, initParentScope, makeScriptableFor, put, setClassName, setDomNode, setDomNode, setParentScope

Methods inherited from class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, delete, delete, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, get, get, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getIds, getObjectPrototype, getOwnPropertyDescriptor, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, has, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, put, put, putConst, putConstProperty, putProperty, putProperty, putProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setPrototype, size

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

EMPTY

public static final short EMPTY

No data has been loaded yet.

See Also:

Constant Field Values

LOADING

public static final short LOADING

Data is currently being loaded.

See Also:

Constant Field Values

DONE

public static final short DONE

The entire read request has been completed.

See Also:

Constant Field Values

Constructor Detail

FileReader

public FileReader()

Creates an instance.

Method Detail

getReadyState

public int getReadyState()

Returns the current state of the reading operation.

Returns:

0, 1, or 2

getResult

public Object getResult()

Returns the file's contents.

Returns:

the file's contents

readAsDataURL

public void readAsDataURL(Object object)
                   throws IOException

Reads the contents of the specified Blob or File.

Parameters:

object - the Blob or File from which to read

Throws:

IOException - if an error occurs

readAsArrayBuffer

public void readAsArrayBuffer(Object object)
                       throws IOException

Reads the contents of the specified Blob or File.

Parameters:

object - the Blob or File from which to read

Throws:

IOException - if an error occurs

readAsText

public void readAsText(Object object,
                       Object encoding)
                throws IOException

Reads the contents of the specified Blob or File. When the read operation is complete, the readyState is changed to DONE, the loaded event is triggered, and the result attribute contains the contents of the file as a text string.

Parameters:

object - the Blob or File from which to read

encoding - the encoding

Throws:

IOException - if an error occurs

getOnload

public net.sourceforge.htmlunit.corejs.javascript.Function getOnload()

Returns the onload event handler for this FileReader.

Returns:

the onload event handler for this FileReader

setOnload

public void setOnload(Object onload)

Sets the onload event handler for this FileReader.

Parameters:

onload - the onload event handler for this FileReader

getOnerror

public net.sourceforge.htmlunit.corejs.javascript.Function getOnerror()

Returns the onerror event handler for this FileReader.

Returns:

the onerror event handler for this FileReader

setOnerror

public void setOnerror(Object onerror)

Sets the onerror event handler for this FileReader.

Parameters:

onerror - the onerror event handler for this FileReader