intellij-sdk-code-samples/topics/tutorials/framework.md

The following tutorial shows how to support a custom framework type for a project and make this framework type embedded in a project wizard as a UI component. The examples in this tutorial rely heavily on the framework_basics code sample.

Creating a New Framework

In oder to make a custom framework available and configurable for a project the FrameworkTypeEx class needs to be extended, in this example to make the DemoFramework class.

public class DemoFramework extends FrameworkTypeEx {
}

Registering Framework

The newly created framework class should be registered as an extension point by adding com.intellij.framework.type extension in plugin.xml configuration file:

<extensions defaultExtensionNs="com.intellij">
    <framework.type implementation="org.intellij.sdk.framework.DemoFramework"/>
</extensions>

Setting up Mandatory Attributes

The framework component should have a unique name passed as a string literal to the constructor. It is best if this is the FQN name of the class:

public class DemoFramework extends FrameworkTypeEx {
    public static final String FRAMEWORK_ID = "org.intellij.sdk.framework.DemoFramework";
    protected DemoFramework() {
        super(FRAMEWORK_ID);
    }
}

The Presentable name and icon define the appearance of visual components related to the framework:

public class DemoFramework extends FrameworkTypeEx {
  @NotNull
  @Override
  public String getPresentableName() {
    return "SDK Demo Framework";
  }

  @NotNull
  @Override
  public Icon getIcon() {
    return SdkIcons.Sdk_default_icon;
  }
}

Creating Provider for Enabling Framework Support

To make the framework set up available while executing the steps to create a project, the DemoFramework.createProvider() method must be implemented to return an object of type FrameworkSupportInModuleConfigurable, which adds the framework to a module. In this example the framework is added to any ModuleType without checking, which is usually not the case.

@NotNull
@Override
public FrameworkSupportInModuleProvider createProvider() {
    return new FrameworkSupportInModuleProvider() {
        @NotNull
        @Override
        public FrameworkTypeEx getFrameworkType() {
            return DemoFramework.this;
        }

        @NotNull
        @Override
        public FrameworkSupportInModuleConfigurable createConfigurable(@NotNull FrameworkSupportModel model) {
            return new FrameworkSupportInModuleConfigurable() {
                @Nullable
                @Override
                public JComponent createComponent() {
                    return new JCheckBox("SDK Extra Option");
                }

                @Override
                public void addSupport(@NotNull Module module, @NotNull ModifiableRootModel model, @NotNull ModifiableModelsProvider provider) {
                    // This is the place to set up a library, generate a specific file, etc
                    // and actually add framework support to a module.
                }
            };
        }

        @Override
        public boolean isEnabledForModuleType(@NotNull ModuleType type) {
            return true;
        }
    };
}

After compiling and running the code sample above an extra option for configuring the newly created Demo custom framework should be available in the Project Wizard: