ptolemy.vergil.basic.export.web

Class WebElement

java.lang.Object

ptolemy.kernel.util.NamedObj

ptolemy.kernel.util.Attribute

ptolemy.kernel.util.AbstractSettableAttribute

ptolemy.kernel.util.StringAttribute

ptolemy.vergil.basic.export.web.WebElement

All Implemented Interfaces:

java.lang.Cloneable, Changeable, Debuggable, DebugListener, Derivable, ModelErrorHandler, MoMLExportable, Moveable, Nameable, Settable

public class WebElement
extends StringAttribute

Attribute containing information and methods for web elements, for example, HTML tags and content, as in <div> This is some HTML content </div> The full name including the _elementName is used as WebElement's web id. In an HTML page, elements that have ids are required to have globally unique ids. The _webName field is used for the WebElement's web name. Elements can have non-unique web names - this is done for example for radio buttons on web forms. http://solidlystated.com/scripting/html-difference-between-id-and-name/ http://stackoverflow.com/questions/1363693/do-input-field-names-have-to-be-unique-across-forms

Since:

Ptolemy II 10.0

Version:

$Id: WebElement.java 70402 2014-10-23 00:52:20Z cxh $

Author:

Elizabeth Latronico

Accepted Rating:

Red (ltrnc)

Proposed Rating:

Red (ltrnc)

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.kernel.util.NamedObj

NamedObj.ContainedObjectsIterator

Nested classes/interfaces inherited from interface ptolemy.kernel.util.Settable

Settable.Visibility

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	BODY A special constant indicating that the <body/> element should be the parent.
static java.lang.String	END Special constant indicating to put content in a div with the name "end" which occurs at the end of the HTML body.
static java.lang.String	HEAD A special constant indicating that the <head/> element should be the parent.
static java.lang.String	START Special constant indicating to put content in a div with the name "start" which occurs at the beginning of the HTML body.

Fields inherited from class ptolemy.kernel.util.NamedObj

_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS

Fields inherited from interface ptolemy.kernel.util.Settable

EXPERT, FULL, NONE, NOT_EDITABLE

Constructor Summary

Constructors

Constructor and Description
WebElement(NamedObj container, java.lang.String name) Create an instance of this parameter.

Method Summary

Modifier and Type	Method and Description
static WebElement	createWebElement(NamedObj container, java.lang.String id, java.lang.String webName) Factory method for creating WebElements.
java.lang.String	getParent() Return the name of the desired parent element, or the empty string if none.
java.lang.String	getWebName() Return the web name of this element; for example, "myElement" in <div name="myElement"/> in HTML.
void	setParent(java.lang.String parent) Set the name of the desired parent element.
void	setWebName(java.lang.String webName) Set the web name of this element; for example, "myElement" in <div name="myElement"/> in HTML.

Methods inherited from class ptolemy.kernel.util.StringAttribute

_propagateValue, addValueListener, clone, exportMoML, getExpression, getVisibility, removeValueListener, setExpression, setVisibility, validate

Methods inherited from class ptolemy.kernel.util.AbstractSettableAttribute

getDefaultExpression, getValueAsString

Methods inherited from class ptolemy.kernel.util.Attribute

_checkContainer, _getContainedObject, _propagateExistence, getContainer, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, setContainer, setName, updateContent

Methods inherited from class ptolemy.kernel.util.NamedObj

_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _description, _executeChangeRequests, _exportMoMLContents, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _removeAttribute, _splitName, _stripNumericSuffix, _validateSettables, addChangeListener, addDebugListener, addHierarchyListener, attributeChanged, attributeDeleted, attributeList, attributeList, attributeTypeChanged, clone, containedObjectsIterator, decorators, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getElementName, getFullName, getModelErrorHandler, getName, getName, getPrototypeList, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, notifyOfNameChange, propagateExistence, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, uniqueName, validateSettables, workspace

Methods inherited from class java.lang.Object

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

Methods inherited from interface ptolemy.kernel.util.Settable

getDisplayName

Methods inherited from interface ptolemy.kernel.util.Nameable

description, getContainer, getFullName, getName, getName, setName

Field Detail

BODY

public static final java.lang.String BODY

A special constant indicating that the <body/> element should be the parent. The <head/> and <body/> tags of an HTML document do not typically have names. For example, almost no one writes <head name="head">, it's only <head/>. Therefore, the WebExporter will not be able to use the name to find the parent element.

See Also:

Constant Field Values

HEAD

public static final java.lang.String HEAD

A special constant indicating that the <head/> element should be the parent. The <head/> and <body/> tags of an HTML document do not typically have names. For example, almost no one writes <head name="head">, it's only <head/>. Therefore, the WebExporter will not be able to use the name to find the parent element.

See Also:

Constant Field Values

START

public static final java.lang.String START

Special constant indicating to put content in a div with the name "start" which occurs at the beginning of the HTML body.

See Also:

Constant Field Values

END

public static final java.lang.String END

Special constant indicating to put content in a div with the name "end" which occurs at the end of the HTML body.

See Also:

Constant Field Values

Constructor Detail

WebElement

public WebElement(NamedObj container,
                  java.lang.String name)
           throws IllegalActionException,
                  NameDuplicationException

Create an instance of this parameter.

Parameters:

container - The container.

name - The name.

Throws:

IllegalActionException - If the superclass throws it.

NameDuplicationException - If the superclass throws it.

Method Detail

createWebElement

public static WebElement createWebElement(NamedObj container,
                                          java.lang.String id,
                                          java.lang.String webName)
                                   throws IllegalActionException

Factory method for creating WebElements. Checks if there is an existing WebElement with the same id (Ptolemy name). If so, return it; if not create a new one. Sets persistent to false. Static so that any WebExportable may call it.

Parameters:

container - The container object for the WebElement

id - The Ptolemy name for the WebElement (WebElement uses this as a unique id)

webName - The web name of this WebElement

Returns:

The WebElement that was created (or that previously existed) with persistent set to false

Throws:

IllegalActionException - if the WebAttribute cannot be created (perhaps another Attribute exists with the requested name)

getParent

public java.lang.String getParent()

Return the name of the desired parent element, or the empty string if none.

Returns:

The name of the desired parent element, or the empty string if none.

See Also:

setParent(String)

getWebName

public java.lang.String getWebName()

Return the web name of this element; for example, "myElement" in <div name="myElement"/> in HTML.

Returns:

The web name of this element; for example, "myElement" in <div name="myElement"/> in HTML.

See Also:

setWebName(String)

setParent

public void setParent(java.lang.String parent)

Set the name of the desired parent element. Can also be a special constant for tags that do not typically have names, like <head/> and <body/>.

Parameters:

parent - The name or special constant of the parent element.

See Also:

getParent()

setWebName

public void setWebName(java.lang.String webName)

Set the web name of this element; for example, "myElement" in <div name="myElement"/> in HTML.

Parameters:

webName - The web name of this element; for example, "myElement" in <div name="myElement"/> in HTML.

See Also:

getWebName()