All Implemented Interfaces:

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

Direct Known Subclasses:

File

public class Blob
extends HtmlUnitScriptable 

Author:

Ahmed Ashour, Ronald Brill, Lai Quang Duong

See Also:

Serialized Form

• Nested Class Summary

  Nested Classes

  Modifier and Type	Class and Description
  protected static class	Blob.Backend The backend used for saving the blob.
  protected static class	Blob.InMemoryBackend Implementation of the Blob.Backend that stores the bytes in memory.

  • Nested classes/interfaces inherited from class org.htmlunit.corejs.javascript.ScriptableObject

    org.htmlunit.corejs.javascript.ScriptableObject.KeyComparator, org.htmlunit.corejs.javascript.ScriptableObject.LambdaGetterFunction, org.htmlunit.corejs.javascript.ScriptableObject.LambdaSetterFunction

• Field Summary

  • Fields inherited from class org.htmlunit.corejs.javascript.ScriptableObject

    CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

  • Fields inherited from interface org.htmlunit.corejs.javascript.Scriptable

    NOT_FOUND

• Constructor Summary

  Constructors

  Constructor and Description
  Blob () Creates an instance.
  Blob (byte[] bytes, String contentType) Ctor.

• Method Summary

  All Methods

  Modifier and Type	Method and Description
  org.htmlunit.corejs.javascript.NativePromise	arrayBuffer ()
  protected static String	extractFileTypeOrDefault (org.htmlunit.corejs.javascript.ScriptableObject properties)
  protected static long	extractLastModifiedOrDefault (org.htmlunit.corejs.javascript.ScriptableObject properties)
  void	fillRequest (WebRequest webRequest) Sets the specified request with the parameters in this FormData.
  protected Blob.Backend	getBackend ()
  byte[]	getBytes ()
  KeyDataPair	getKeyDataPair (String name, String fileName) Delegates the KeyDataPair construction to the backend.
  long	getSize () Returns the size property.
  String	getType () Returns the type property.
  void	jsConstructor (org.htmlunit.corejs.javascript.NativeArray fileBits, org.htmlunit.corejs.javascript.ScriptableObject properties) Creates an instance.
  protected void	setBackend (Blob.Backend backend)
  Blob	slice (Object start, Object end, Object contentType)
  ReadableStream	stream ()
  org.htmlunit.corejs.javascript.NativePromise	text ()

  • Methods inherited from class org.htmlunit.javascript.HtmlUnitScriptable

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

  • Methods inherited from class org.htmlunit.corejs.javascript.ScriptableObject

    applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChangeForSlot, checkPropertyDefinition, defineBuiltInProperty, defineBuiltInProperty, defineBuiltInProperty, defineBuiltInProperty, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, delete, delete, deleteProperty, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureScriptableObjectButNotSymbol, ensureSymbolScriptable, ensureType, 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, getSuperProperty, getSuperProperty, getSuperProperty, 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, putOwnProperty, putOwnProperty, putOwnProperty, putProperty, putProperty, putProperty, putSuperProperty, putSuperProperty, putSuperProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setPrototype, size

  • Methods inherited from class org.htmlunit.corejs.javascript.SlotMapOwner

    createSlotMap

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • Blob

    public Blob()

    Creates an instance.

  • Blob

    public Blob(byte[] bytes,
     String contentType)

    Ctor.

    Parameters:

    bytes - the bytes

    contentType - the content type

• Method Detail

  • extractFileTypeOrDefault

    protected static String extractFileTypeOrDefault(org.htmlunit.corejs.javascript.ScriptableObject properties)

  • extractLastModifiedOrDefault

    protected static long extractLastModifiedOrDefault(org.htmlunit.corejs.javascript.ScriptableObject properties)

  • jsConstructor

    public void jsConstructor(org.htmlunit.corejs.javascript.NativeArray fileBits,
     org.htmlunit.corejs.javascript.ScriptableObject properties)

    Creates an instance.

    Parameters:

    fileBits - the bits

    properties - the properties

  • getSize

    public long getSize()

    Returns the size property.

    Returns:

    the size property

  • getType

    public String getType()

    Returns the type property.

    Returns:

    the type property

  • arrayBuffer

    public org.htmlunit.corejs.javascript.NativePromise arrayBuffer()

    Returns:

    a Promise that resolves with an ArrayBuffer containing the data in binary form.

  • slice

    public Blob slice(Object start,
     Object end,
     Object contentType)

    Parameters:

    start - An index into the Blob indicating the first byte to include in the new Blob. If you specify a negative value, it's treated as an offset from the end of the Blob toward the beginning. For example, -10 would be the 10th from last byte in the Blob. The default value is 0. If you specify a value for start that is larger than the size of the source Blob, the returned Blob has size 0 and contains no data.

    end - An index into the Blob indicating the first byte that will not be included in the new Blob (i.e. the byte exactly at this index is not included). If you specify a negative value, it's treated as an offset from the end of the Blob toward the beginning. For example, -10 would be the 10th from last byte in the Blob. The default value is size.

    contentType - The content type to assign to the new Blob; this will be the value of its type property. The default value is an empty string.

    Returns:

    a new Blob object which contains data from a subset of the blob on which it's called.

  • stream

    public ReadableStream stream()

    Returns:

    a ReadableStream which, upon reading, returns the contents of the Blob.

  • text

    public org.htmlunit.corejs.javascript.NativePromise text()

    Returns:

    a Promise that resolves with a string containing the contents of the blob, interpreted as UTF-8.

  • getBytes

    public byte[] getBytes()

    Returns:

    the bytes of this blob

  • fillRequest

    public void fillRequest(WebRequest webRequest)

    Sets the specified request with the parameters in this FormData.

    Parameters:

    webRequest - the web request to fill

  • getKeyDataPair

    public KeyDataPair getKeyDataPair(String name,
     String fileName)

    Delegates the KeyDataPair construction to the backend.

    Parameters:

    name - the name

    fileName - the filename

    Returns:

    the constructed KeyDataPair

  • getBackend

    protected Blob.Backend getBackend()

  • setBackend

    protected void setBackend(Blob.Backend backend)