org.apidesign.html.boot.spi

Interface Fn.Presenter

Enclosing class:

Fn

public static interface Fn.Presenter

The representation of a presenter - usually a browser window. Should be provided by a library included in the application and registered in META-INF/services, for example with @ServiceProvider(service = Fn.Presenter.class) annotation.

Since 0.7 a presenter may implement Executor interface, in case it supports single threaded execution environment. The executor's Executor.execute(java.lang.Runnable) method is then supposed to invoke the runnable immediately (in case we are on the right thread already) or return and asynchronously invoke the runnable later on the right thread (if we are on wrong thread).

Method Summary

Methods

Modifier and Type	Method and Description
Fn	defineFn(String code, String... names) Creates new function with given parameter names and provided body.
void	displayPage(URL page, Runnable onPageLoad) Opens the browser, loads provided page and when the page is ready, it calls back to the provider runnable.
void	loadScript(Reader code) Loads a script into the browser JavaScript interpreter and executes it.

Method Detail

defineFn

Fn defineFn(String code,
          String... names)

Creates new function with given parameter names and provided body.

Parameters:

code - the body of the function. Can refer to variables named as names

names - names of parameters of the function - these will be available when the code body executes

Returns:

function that can be later invoked

displayPage

void displayPage(URL page,
               Runnable onPageLoad)

Opens the browser, loads provided page and when the page is ready, it calls back to the provider runnable.

Parameters:

page - the URL for the page to display

onPageLoad - callback when the page is ready

loadScript

void loadScript(Reader code)
                throws Exception

Loads a script into the browser JavaScript interpreter and executes it.

Parameters:

code - the script to execute

Throws:

Exception - if something goes wrong, throw an exception