Book

class MyApp extends App{
	createStartPage(){
		return CoverPage
	}
}

class CoverPage extends Page{
	createGui(){
		return Rows.children(
			Space,
			Text.text(`The story about Bagawork`),
			Text.text(`by Peppe L-G`),
			Space,
			Space,
			Columns.children(
				Space,
				Button.text(`Start Reading`).page(Page1),
				Space,
			),
			Space,
		)
	}
}

class Page1 extends Page{
	createGui(){
		return Rows.children(
			Text.text(`Once upon a time, there was a programmer who thought creating small useful apps was too hard for beginners.`),
			Space,
			Columns.children(
				Button.text(`←`).page(CoverPage),
				Space,
				Text.text(`1`),
				Space,
				Button.text(`→`).page(Page2),
			),
		)
	}
}

class Page2 extends Page{
	createGui(){
		return Rows.children(
			Text.text(`So he created his own little framework that made it easier. He called that framework for Bagawork.`),
			Space,
			Columns.children(
				Button.text(`←`).page(Page1),
				Space,
				Text.text(`2`),
				Space,
				Button.text(`→`).page(Page3),
			),
		)
	}
}

class Page3 extends Page{
	createGui(){
		return Rows.children(
			Text.text(`And that's the framework you are using now!`),
			Space,
			Columns.children(
				Button.text(`←`).page(Page2),
				Space,
				Text.text(`3`),
				Space,
				Button.text(`→`).page(Page4),
			),
		)
	}
}

class Page4 extends Page{
	createGui(){
		return Rows.children(
			Space,
			Text.text(`The end!`),
			Space.size(2),
			Columns.children(
				Space,
				Button.text(`Read again`).page(CoverPage),
				Space,
			),
			Space,
		)
	}
}