Stardust/Enhancing and Embedding Stardust/Browser Modeler/Javascript Extension Points

Overview

Extension Points and Extensions - analogous to the concepts in Eclipse - allow you to plug-in JavaScript logic and HTML UI into various parts of the Browser Modeler (Lightdust).

E.g. by defining

propertiesPage : [{
   panelId: "activityPropertiesPanel",
   pageId: "controllingPropertiesPage",
   pageHtmlUrl: "activityControllingPropertiesPage.html",
   provider: m_activityControllingPropertiesPage,
   visibility: "always"
}]

you add an additional Properties Page to the Properties Pages for Activities whose code is to be found in the file activityControllingPropertiesPage.html and whose JavaScript Controller is created by invoking

m_activityControllingPropertiesPage.create()

whereby m_activityControllingPropertiesPage is a JavaScript module in the file m_activityControllingPropertiesPage.js.

In other words: you only have to program JavaScript and HTML!

The Extension Point mechanism described here is very close to the Plug-In mechanism of Orion. It is intended to extend Lightdust's Extension Points towards the Orion Model.

Prerequisites

In order to understand the concepts in this document you need to familiarize yourself with

• JavaScript programming in general
• jQuery
• jQuery UI
• require for JavaScript
• the JavaScript Metamodel for Lightdust

Properties Page Extension Point

The Extension Point propertiesPage allows to specify additional Properties Pages with the Properties Panel for a Diagram Element in Lightdust Diagrams.

Properties

Property	Content
panelId	ID of the Panel containing the Page, e.g. activityPropertiesPanel.
pageId	ID of the Properties Page, must be unique in the Properties Panel
pageUrl	URL of the HTML content of the page
handlerMethod	function of the JavaScript Controller to be invoked
visibility	Flag to indicate whether the Entry is always visible (always) or only for preview purposes (preview)

Example

propertiesPage : [ ..., {
   panelId: "activityPropertiesPanel",
   pageId: "controllingPropertiesPage",
   pageHtmlUrl: "activityControllingPropertiesPage.html",
   provider: m_activityControllingPropertiesPage,
   visibility: "always"
}, ...]

Toolbar Extension Points

The Extension Point propertiesPage allows to specify additional Properties Pages with the Properties Panel for a Diagram Element in Lightdust Diagrams.

Properties

Property	Content
panelId	ID of the Panel containing the Page, e.g. activityPropertiesPanel.
pageId	ID of the Properties Page, must be unique in the Properties Panel
pageUrl	URL of the HTML content of the page
handlerMethod	function of the JavaScript Controller to be invoked
visibility	Flag to indicate whether the Entry is always visible (always) or only for preview purposes (preview)

Example

propertiesPage : [ ..., {
   panelId: "activityPropertiesPanel",
   pageId: "controllingPropertiesPage",
   pageHtmlUrl: "activityControllingPropertiesPage.html",
   provider: m_activityControllingPropertiesPage,
   visibility: "always"
}, ...]

Application Type Extension Point

The Extension Point propertiesPage allows to specify additional Properties Pages with the Properties Panel for a Diagram Element in Lightdust Diagrams.

Properties

Property	Content
panelId	ID of the Panel containing the Page, e.g. activityPropertiesPanel.
pageId	ID of the Properties Page, must be unique in the Properties Panel
pageUrl	URL of the HTML content of the page
handlerMethod	function of the JavaScript Controller to be invoked
visibility	Flag to indicate whether the Entry is always visible (always) or only for preview purposes (preview)

Example

propertiesPage : [ ..., {
   panelId: "activityPropertiesPanel",
   pageId: "controllingPropertiesPage",
   pageHtmlUrl: "activityControllingPropertiesPage.html",
   provider: m_activityControllingPropertiesPage,
   visibility: "always"
}, ...]

Application Overlay Extension Point =

More Details

More details can be found here.

Data Type Extension Point

The Extension Point dataType allows to specify additional Properties Pages with the Properties Panel for a Diagram Element in Lightdust Diagrams.

Properties

Property	Content
panelId	ID of the Panel containing the Page, e.g. activityPropertiesPanel.
pageId	ID of the Properties Page, must be unique in the Properties Panel
readableName	Readable name of the Data Type
handlerMethod	function of the JavaScript Controller to be invoked
visibility	Flag to indicate whether the Entry is always visible (always) or only for preview purposes (preview)

Example

dataType : [ ..., {
   panelId: "activityPropertiesPanel",
   pageId: "controllingPropertiesPage",
   readableName: "activityControllingPropertiesPage.html"
}, ...]

Toolbar Palette Extension Point

The Extension Point diagramToolbarPalette allows to specify additional Properties Pages with the Properties Panel for a Diagram Element in Lightdust Diagrams.

Properties

Property	Content
panelId	ID of the Panel containing the Page, e.g. activityPropertiesPanel.
pageId	ID of the Properties Page, must be unique in the Properties Panel
pageUrl	URL of the HTML content of the page
handlerMethod	function of the JavaScript Controller to be invoked
visibility	Flag to indicate whether the Entry is always visible (always) or only for preview purposes (preview)

Example

diagramToolbarPalette : [ ..., {
   panelId: "activityPropertiesPanel",
   pageId: "controllingPropertiesPage",
   pageHtmlUrl: "activityControllingPropertiesPage.html",
   provider: m_activityControllingPropertiesPage,
   visibility: "always"
}, ...]

Toolbar Palette Entry Extension Point

The Extension Point diagramToolbarPaletteEntry allows to specify single entries in a palette in a diagram toolbar.

Properties

Property	Content
id	ID of the toolbar entry
paletteId	ID of the Palette the Toolbar Palette Entry is added to.
iconUrl	URL of the icon for the Entry
provider	require module reference for the code module providing the create() function for the JavaScript Controller of the Entry
handlerMethod	function of the JavaScript Controller to be invoked
visibility	Flag to indicate whether the Entry is always visible (always) or only for preview purposes (preview)

Example

diagramToolbarPaletteEntry : [ ..., {
   id: "selectModeButton",
   paletteId: "drawingPalette",
   title: m_i18nUtils.getProperty("modeler.diagram.toolbar.tool.selectMode.title"),
   iconUrl: "../../images/icons/select.png",
   provider: m_defaultPaletteHandler,
   handlerMethod: "setSelectMode",
   visibility: "always"
}, ...]

Diagram Decoration Extension Point

The Extension Point modelDecoration allows to specify additional Properties Pages with the Properties Panel for a Diagram Element in Lightdust Diagrams.

Properties

Property	Content
panelId	ID of the Panel containing the Page, e.g. activityPropertiesPanel.
pageId	ID of the Properties Page, must be unique in the Properties Panel
pageUrl	URL of the HTML content of the page
handlerMethod	function of the JavaScript Controller to be invoked

Example

modelDecoration : [ ..., {
   panelId: "activityPropertiesPanel",
   pageId: "controllingPropertiesPage",
   pageHtmlUrl: "activityControllingPropertiesPage.html",
   provider: m_activityControllingPropertiesPage,
   visibility: "always"
}, ...]

Define a New Extension Point

You may define your own extension points and evaluate those in the JavaScript code.

Extension Registration

Extensions need to be registered in JavaScript files underneath the /modelerExtensions/<Extension Point Id> folder.