Automated Seaside Interface to a VisualWorks and GemStone Application Framework – Bob Nemec

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Seaside Interface to Legacy Smalltalk App

Bob NemecCherniak Software

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RequirementsProvide a web based interface to existing VW views with minimal additional effort by the domain developer.

A web interface for free.

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A Seaside builderThis is not a general solutionIt uses framework meta data to build Seaside

components

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BuilderReads the window spec identified by the meta dataCreates a ‘widget component’ for each type of widgetEach component has the widget’s window spec detailsFramework metadata defines widget behavior

ButtonCheck boxCombo boxDividerGroup boxInput fieldLabel

NotebookRadio buttonListSubcanvasTableText editor

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ContainerLayout the generated components using the size and

position information in the window spec

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Component layoutAdd to new line

Add to a group box

Add to same line

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Component layout

Add tall component

Add to tall row

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Widget position and sizeAdded convenience methods to Array

#specElementAfter:#specElementAfter:ifAbsent:

Extract origin and corner as offset from parentTranslate proportional values to fixed points

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AdjustmentsIt’s easier to have a small adjustment than to make the

layout code perfect

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Dialog promptsSemaphore handoff to forked process

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Reporting Print preview in VW client

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Reporting Print preview in browser

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ReportingWrite output to a Pixmap Render result in lightbox

image := pixmap asGif.…image gifBytes seasideMimeDocument

mimeType: Seaside.WAMimeType imageGif

Full report would be printed to a PDF

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Mobile devicesSimplified views will be used for mobile devicesFlag is set on launcher entries and window specs

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Diagnostic toolsWindow spec view – build window spec from components

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Load balancingA dispatcher image uses OpenTalk to find idle client

imageA cookie with port number & millisecond clock value is

used to bind session to client image

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Dispatcher

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Client portalsUsing both domain and coded Seaside components

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More SeasideIssue LibraryPatch ManagerMediaWiki contentIVR VXML serveriCal serverXML data for MS Office

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Issue Library

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Patch Manager

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MediaWiki content

{{#webservice:cslx4.cherniaksoftware.com:48197/Issues?wiki=problems:summary| %//div%}}

{{#webservice:cslx4.cherniaksoftware.com:48197/Issues?wiki=sidebar| %//div%}}

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IVR VXML Server

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Next stepsLots of javascript Mobile devicesIntegration with client web sites

Thank you to everyone that has contributed to Seaside