1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/boot/src/main/java/org/apidesign/html/boot/impl/FnContext.java	Thu Oct 10 14:02:18 2013 +0200
     1.3 @@ -0,0 +1,49 @@
     1.4 +/**
     1.5 + * HTML via Java(tm) Language Bindings
     1.6 + * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     1.7 + *
     1.8 + * This program is free software: you can redistribute it and/or modify
     1.9 + * it under the terms of the GNU General Public License as published by
    1.10 + * the Free Software Foundation, version 2 of the License.
    1.11 + *
    1.12 + * This program is distributed in the hope that it will be useful,
    1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.15 + * GNU General Public License for more details. apidesign.org
    1.16 + * designates this particular file as subject to the
    1.17 + * "Classpath" exception as provided by apidesign.org
    1.18 + * in the License file that accompanied this code.
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License
    1.21 + * along with this program. Look for COPYING file in the top folder.
    1.22 + * If not, see http://wiki.apidesign.org/wiki/GPLwithClassPathException
    1.23 + */
    1.24 +package org.apidesign.html.boot.impl;
    1.25 +
    1.26 +import org.apidesign.html.boot.spi.Fn;
    1.27 +
    1.28 +/**
    1.29 + *
    1.30 + * @author Jaroslav Tulach <jtulach@netbeans.org>
    1.31 + */
    1.32 +public final class FnContext {
    1.33 +    private FnContext() {
    1.34 +    }
    1.35 +    
    1.36 +    private static final ThreadLocal<Fn.Presenter> CURRENT = new ThreadLocal<Fn.Presenter>();
    1.37 +
    1.38 +    public static Fn.Presenter currentPresenter(Fn.Presenter p) {
    1.39 +        Fn.Presenter prev = CURRENT.get();
    1.40 +        CURRENT.set(p);
    1.41 +        return prev;
    1.42 +    }
    1.43 +
    1.44 +    public static Fn.Presenter currentPresenter() {
    1.45 +        Fn.Presenter p = CURRENT.get();
    1.46 +        if (p == null) {
    1.47 +            throw new IllegalStateException("No current WebView context around!");
    1.48 +        }
    1.49 +        return p;
    1.50 +    }
    1.51 +    
    1.52 +}