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MaterialDesignLite for Seaside

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This project has as first goal to bind the Google's Material Design Lite project to Seaside and as second goal to build widgets on top of Material Design to help Seaside developers in creating fast web application with flat design. For a tutorial on Seaside check

A migration guide from v1 to v2 can be found here.


Version management

This project use semantic versioning to define the releases. This means that each stable release of the project will be assigned a version number of the form vX.Y.Z.

  • X defines the major version number
  • Y defines the minor version number
  • Z defines the patch version number

When a release contains only bug fixes, the patch number increases. When the release contains new features that are backward compatible, the minor version increases. When the release contains breaking changes, the major version increases.

Thus, it should be safe to depend on a fixed major version and moving minor version of this project.

Install MDL Seaside

In Pharo

To install MaterialDesignLite on your Pharo image, execute the following script: Spotter Cloud Workspace Url. See ZnWorkspace section for installing a ZnWorkspace if you so want.

    Metacello new
    	githubUser: 'DuneSt' project: 'MaterialDesignLite' commitish: 'v2.x.x' path: 'src';
    	baseline: 'MaterialDesignLite';

To add MaterialDesignLite Seaside to your baseline:

    	baseline: 'MaterialDesignLite'
    	with: [ spec repository: 'github://DuneSt/MaterialDesignLite:v2.x.x/src' ]

Note that you can replace the #master by another branch such as #development or a tag such as #v2.0.0, #v2.? or #v2.1.? .

In GemStone

Gemstone is only supported on v1 of the project. This does not mean no fix or feature can be added to it. We can still release new patch and feature version if asked.

    Metacello new
    	githubUser: 'DuneSt' project: 'MaterialDesignLite' commitish: 'v1.x.x' path: 'src';
    	baseline: 'MaterialDesignLite';

To add MaterialDesignLite Seaside to your baseline just add this:

    	baseline: 'MaterialDesignLite'
    	with: [ spec repository: 'github://DuneSt/MaterialDesignLite:v1.x.x/src' ]

Note that you can replace the #master by another branch such as #development or a tag such as #v1.0.0, #v1.? or #v1.2.? .

Getting started

We use as a base the files product by Google's Material Design Lite. To have a working Material Design Seaside application we need to add those files. Most of them can be easily added via a file library but one file need to be explicitely added because this file change depending on the colors you wish for your application.

For now MDL Seaside is based on version 1.3.0 of Google's Material Design Lite.

Add the right libraries and file

To use MaterialDesign you will need to add JQuery and Material Design library to your application:

	(WAAdmin register: self asApplicationAt: 'myApplication')
		addLibrary: JQDeploymentLibrary;
		addLibrary: MDLLibrary

Then you will need to add the css file with the colors. To do so, you will have two options:

  • Add it to your file library
  • Add it in your #updateRoot:

You can find the files on

They are in the form of:


  • XXX = primary color
  • YYY = accent color

Add the css file in the updateRoot of your application:

    MyApplication>>updateRoot: anHtmlRoot
	    super updateRoot: anHtmlRoot.
	    anHtmlRoot beHtml5.
	    anHtmlRoot stylesheet url: (WAUrl absolute: '').

Add specific style for extensions

In order to make the extentions work properly, you should define some colors specific rules for your application in your css. To do so, just define:

        box-shadow: inset 0px -4px 0px 0px #XXXXXX !important;

Where XXXXXX is the hex code of the accent color of your MDL application. To find your code you can select the #A200 color in the following page:

Subclassing MDLApplication

Another simple way to start with MDL is to subclass MDLApplication to create your root component. MDLApplication is a class to help you to start an application easily. It will keep in a FileLibrary most of MDL's files.

Since MaterialDesignLite works with a primary color and an accent color you will need to set them. To do so you will need to add this to your #initialize method:

    self primaryColor: MDLColor indigo secondaryColor: MDLColor pink

You can find the possible colors into the class MDLColor class.


You can find multiple examples when the application will be installed at the url: http://localhost:8080/MDLDemo

When you install in a plain Pharo image you need to start the seaside server first by opening World menu > Tools > Seaside Control Panel and adding and starting an appropropriate ZnZincServerAdaptor. If you do not use port 8080, change the port in the URL.

Since v2 you can also open the demo from the menu bar under MaterialDesignLite.

You can find a demo at:


If you look at a cloud workspace page, you'll see it mentions a ZnWorkspace. This is how you can load it up.

Gofer it
  squeaksource: 'ZincHTTPComponents';
  package: 'Zinc-WWS-Client';

To open one, just do a

ZnWorkspace openUrl: ''

Latest supported Dependencies

Smalltalk versions compatibility

MDL version Compatible Pharo versions Compatible Gemstone versions
1.1.x Pharo 50, 60, 61 None
1.2.x Pharo 50, 60, 61 None
1.3.x Pharo 50, 60, 61 Gemstone 3.4.1 (*) (**)
2.x.x Pharo 61, 70 None
Dev Pharo 61, 70 None

(*) This version of Gemstone is tested. Older versions might work but we did not tested it. (**) The compatibility is not total. MaterialDesignLite uses Pharo's Traits to provide the users composables components. Thus, if the Gemstone users wants to use those components they will have to flatten themself the Traits in their Seaside application


A port of MDL for Seaside to Dolphin Smalltalk has been made and can be found at:

Under the hood

Understanding what is going on under the hood is always useful. Have a look at ( for a tutorial.


If you have any questions or problems do not hesitate to open an issue or contact cyril (a)

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