Class: Lively::HelloWorld

Inherits:
Live::View
  • Object
show all
Defined in:
lib/lively/hello_world.rb

Overview

Represents a “Hello World” Live view component.

This component displays a simple greeting message with a real-time clock that updates every second. It serves as a demonstration of Lively’s live update capabilities and provides basic usage instructions.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ HelloWorld

Initialize a new HelloWorld view.



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# File 'lib/lively/hello_world.rb', line 16

def initialize(...)
	super
	
	@clock = nil
end

Instance Attribute Details

#clock ⇒ Object (readonly)

Returns the value of attribute clock.



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# File 'lib/lively/hello_world.rb', line 23

def clock
  @clock
end

Instance Method Details

#bind(page) ⇒ Object

Bind this view to a page and start the update clock.



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# File 'lib/lively/hello_world.rb', line 27

def bind(page)
	super
	
	@clock ||= Async do
		while true
			self.update!
			
			sleep 1
		end
	end
end

#close ⇒ Object

Close this view and stop the update clock.



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# File 'lib/lively/hello_world.rb', line 40

def close
	@clock&.stop
	
	super
end

#render(builder) ⇒ Object

Render this view as HTML.



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# File 'lib/lively/hello_world.rb', line 48

def render(builder)
	builder.tag(:h1) do
		builder.text("Hello, I'm Lively!")
	end
	
	builder.tag(:p) do
		builder.text("The time is #{Time.now}.")
	end
	
	builder.tag(:p) do
		builder.text(<<~TEXT)
			Lively is a simple client-server SPA framework. It is designed to be easy to use and understand, while providing a solid foundation for building interactive web applications. Create an `application.rb` file and define your own `Application` class to get started.
		TEXT
	end
	
	builder.inline_tag(:pre) do
		builder.text(<<~TEXT)
			#!/usr/bin/env lively
			
			class Application < Lively::Application
				def body
					Lively::HelloWorld.new
				end
			end
		TEXT
	end
	
	builder.tag(:p) do
		builder.text("Check the `examples/` directory for... you guessed it... more examples.")
	end
end

#The background task that updates the view periodically.=(backgroundtaskthatupdatestheviewperiodically. = (value)) ⇒ Object 



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# File 'lib/lively/hello_world.rb', line 23

attr :clock