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43 package net.java.html.boot.script;
45 import java.util.concurrent.Executor;
46 import javax.script.ScriptEngine;
47 import net.java.html.boot.BrowserBuilder;
48 import net.java.html.js.JavaScriptBody;
49 import org.apidesign.html.boot.spi.Fn.Presenter;
51 /** Implementations of {@link Presenter}s that delegate
52 * to Java {@link ScriptEngine scripting} API. Initialize your presenter
57 * {@link Runnable} <em>run</em> = ...; // your own init code
58 * {@link Presenter Fn.Presenter} <em>p</em> = Scripts.{@link Scripts#createPresenter()};
59 * BrowserBuilder.{@link BrowserBuilder#newBrowser(java.lang.Object...) newBrowser(<em>p</em>)}.
60 * {@link BrowserBuilder#loadFinished(java.lang.Runnable) loadFinished(run)}.
61 * {@link BrowserBuilder#showAndWait()};
64 * and your runnable can make extensive use of {@link JavaScriptBody} directly or
65 * indirectly via APIs using {@link JavaScriptBody such annotation} themselves.
67 * @author Jaroslav Tulach
69 public final class Scripts {
73 /** Simple implementation of {@link Presenter} that delegates
74 * to Java {@link ScriptEngine scripting} API. The presenter runs headless
75 * without appropriate simulation of browser APIs. Its primary usefulness
76 * is inside testing environments. The presenter implements {@link Executor}
77 * interface, but invokes all runnables passed to {@link Executor#execute(java.lang.Runnable)}
80 * @return new instance of a presenter that is using its own
81 * {@link ScriptEngine} for <code>text/javascript</code> mimetype
83 public static Presenter createPresenter() {
84 return new ScriptPresenter(null);
87 /** Implementation of {@link Presenter} that delegates
88 * to Java {@link ScriptEngine scripting} API and can control execution
89 * thread. The presenter runs headless
90 * without appropriate simulation of browser APIs. Its primary usefulness
91 * is inside testing environments. The presenter implements {@link Executor}
92 * interface, and passes all runnables from {@link Executor#execute(java.lang.Runnable)}
93 * to here in provided <code>exc</code> instance.
95 * @param exc the executor to re-schedule all asynchronous requests to
96 * @return new instance of a presenter that is using its own
97 * {@link ScriptEngine} for <code>text/javascript</code> mimetype
99 public static Presenter createPresenter(Executor exc) {
100 return new ScriptPresenter(exc);