karibu-dsl

Karibu-DSL, Kotlin extensions/DSL for Vaadin

This is a Kotlin extensions and DSL library for the Vaadin framework. Please visit Vaadin-on-Kotlin pages for the Getting Started guide.

This library:

• Allows you to create Vaadin UI designs in the structured code way; the idea behind the library is explained in the DSLs: Explained for Vaadin article. The general DSL idea is explained in Kotlin Type-Safe Builders.
• Includes useful components like PopupButton and TabSheet
• Contains additional useful methods which Vaadin lacks; see karibu-tools

Sample code

class ButtonBar : KComposite() {
    init {
        ui {
            // create the component UI here; maybe even attach very simple listeners here
            horizontalLayout {
                button("ok") {
                    onLeftClick { okClicked() }
                }
                button("cancel") {
                    onLeftClick { cancelClicked() }
                }
            }
        }

        // perform any further initialization here
    }

    // add listener methods here
    private fun okClicked() {}
    private fun cancelClicked() {}
}

Links

• View on GitHub

Compatibility