# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1348492003 -7200
# Node ID 03e4aaa4ef3d36c904cfc0d9024bd3bf8313e60e
# Parent  e214f04abb987ac68d713e04b5cc972f8afe216c
Can extract 'id' elements from a page and generate appropriate HTML page

diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/pom.xml
--- a/htmlpage/pom.xml	Mon Sep 24 12:39:21 2012 +0200
+++ b/htmlpage/pom.xml	Mon Sep 24 15:06:43 2012 +0200
@@ -12,7 +12,7 @@
   <version>1.0-SNAPSHOT</version>
   <name>htmlpage</name>
   <url>http://maven.apache.org</url>
-  <properties>
+    <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
   <dependencies>
@@ -27,5 +27,21 @@
         </exclusion>
       </exclusions>
     </dependency>
+    <dependency>
+      <groupId>org.netbeans.api</groupId>
+      <artifactId>org-openide-util-lookup</artifactId>
+    </dependency>
   </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>com.mycila.maven-license-plugin</groupId>
+                <artifactId>maven-license-plugin</artifactId>
+                <version>1.9.0</version>
+                <configuration>
+                    <header>../vm/src/header.txt</header>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java	Mon Sep 24 15:06:43 2012 +0200
@@ -0,0 +1,113 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.htmlpage;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.util.Locale;
+import java.util.Set;
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.Processor;
+import javax.annotation.processing.RoundEnvironment;
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.element.TypeElement;
+import javax.tools.Diagnostic;
+import javax.tools.FileObject;
+import javax.tools.StandardLocation;
+import org.apidesign.bck2brwsr.htmlpage.api.Page;
+import org.openide.util.lookup.ServiceProvider;
+
+/** Annotation processor to process an XHTML page and generate appropriate 
+ * "id" file.
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+@ServiceProvider(service=Processor.class)
+@SupportedAnnotationTypes("org.apidesign.bck2brwsr.htmlpage.api.Page")
+public final class PageProcessor extends AbstractProcessor {
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+        for (Element e : roundEnv.getElementsAnnotatedWith(Page.class)) {
+            Page p = e.getAnnotation(Page.class);
+            PackageElement pe = (PackageElement)e;
+            String pkg = pe.getQualifiedName().toString();
+            
+            ProcessPage pp;
+            try {
+                InputStream is = openStream(pkg, p.xhtml());
+                pp = ProcessPage.readPage(is);
+                is.close();
+            } catch (IOException iOException) {
+                processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Can't read " + p.xhtml(), e);
+                return false;
+            }
+            Writer w;
+            try {
+                FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + p.name(), e);
+                w = new OutputStreamWriter(java.openOutputStream());
+                w.append("package " + pkg + ";\n");
+                w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
+                w.append("class ").append(p.name()).append(" {\n");
+                for (String id : pp.ids()) {
+                    String tag = pp.tagNameForId(id);
+                    String type = type(tag);
+                    w.append("  ").append("public static final ").
+                        append(type).append(' ').append(cnstnt(id)).append(" = new ").
+                        append(type).append("(\"").append(id).append("\");\n");
+                }
+                w.append("}");
+                w.close();
+            } catch (IOException ex) {
+                processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Can't create " + p.name() + ".java", e);
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private InputStream openStream(String pkg, String name) throws IOException {
+        FileObject fo = processingEnv.getFiler().getResource(
+            StandardLocation.SOURCE_PATH, pkg, name);
+        try {
+            return fo.openInputStream();
+        } catch (IOException ex) {
+            return processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, pkg, name).openInputStream();
+        }
+    }
+
+    private static String type(String tag) {
+        if (tag.equals("title")) {
+            return "Title";
+        }
+        if (tag.equals("button")) {
+            return "Button";
+        }
+        if (tag.equals("input")) {
+            return "Input";
+        }
+        return "Element";
+    }
+
+    private static String cnstnt(String id) {
+        return id.toUpperCase(Locale.ENGLISH).replace('.', '_');
+    }
+}
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/ProcessPage.java
--- a/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/ProcessPage.java	Mon Sep 24 12:39:21 2012 +0200
+++ b/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/ProcessPage.java	Mon Sep 24 15:06:43 2012 +0200
@@ -1,3 +1,20 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
 package org.apidesign.bck2brwsr.htmlpage;
 
 import java.io.IOException;
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Button.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Button.java	Mon Sep 24 15:06:43 2012 +0200
@@ -0,0 +1,32 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.htmlpage.api;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class Button extends Element {
+    public Button(String id) {
+        super(id);
+    }
+
+    @Override
+    void dontSubclass() {
+    }
+}
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Element.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Element.java	Mon Sep 24 15:06:43 2012 +0200
@@ -0,0 +1,32 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.htmlpage.api;
+
+/** Represents a generic HTML element.
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public abstract class Element {
+    private final String id;
+    
+    public Element(String id) {
+        this.id = id;
+    }
+    
+    abstract void dontSubclass();
+}
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Input.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Input.java	Mon Sep 24 15:06:43 2012 +0200
@@ -0,0 +1,32 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.htmlpage.api;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class Input extends Element {
+    public Input(String id) {
+        super(id);
+    }
+
+    @Override
+    void dontSubclass() {
+    }
+}
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Page.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Page.java	Mon Sep 24 15:06:43 2012 +0200
@@ -0,0 +1,43 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.apidesign.bck2brwsr.htmlpage.api;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/** Converts an XHTML page into a Java class that contains 
+ * references to all IDs.
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+@Retention(RetentionPolicy.SOURCE)
+@Target(ElementType.PACKAGE)
+public @interface Page {
+    /** Path to the XHTML page to read in */
+    String xhtml();
+    /** Name of a Java class to generate. It will contain constants for all
+     * found elements with IDs.
+     */
+    String name();
+}
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Title.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Title.java	Mon Sep 24 15:06:43 2012 +0200
@@ -0,0 +1,32 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.htmlpage.api;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class Title extends Element {
+    public Title(String id) {
+        super(id);
+    }
+
+    @Override
+    void dontSubclass() {
+    }
+}
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/test/java/org/apidesign/bck2brwsr/htmlpage/ProcessPageTest.java
--- a/htmlpage/src/test/java/org/apidesign/bck2brwsr/htmlpage/ProcessPageTest.java	Mon Sep 24 12:39:21 2012 +0200
+++ b/htmlpage/src/test/java/org/apidesign/bck2brwsr/htmlpage/ProcessPageTest.java	Mon Sep 24 15:06:43 2012 +0200
@@ -1,3 +1,20 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
 package org.apidesign.bck2brwsr.htmlpage;
 
 import java.io.IOException;
@@ -6,6 +23,8 @@
 import org.testng.annotations.Test;
 import static org.testng.Assert.*;
 
+import org.apidesign.bck2brwsr.htmlpage.api.*;
+
 public class ProcessPageTest {
     
     
@@ -20,4 +39,8 @@
         assertEquals(res.tagNameForId("pg.button"), "button");
         assertEquals(res.tagNameForId("pg.text"), "input");
     }
+    
+    void testWhetherWeCanCallTheGeneratedIdFields() {
+        Title t = TestPage.PG_TITLE;
+    }
 }
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/test/java/org/apidesign/bck2brwsr/htmlpage/package-info.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htmlpage/src/test/java/org/apidesign/bck2brwsr/htmlpage/package-info.java	Mon Sep 24 15:06:43 2012 +0200
@@ -0,0 +1,22 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+@Page(xhtml="TestPage.xhtml", name="TestPage")
+package org.apidesign.bck2brwsr.htmlpage;
+
+import org.apidesign.bck2brwsr.htmlpage.api.Page;
+
diff -r e214f04abb98 -r 03e4aaa4ef3d htmlpage/src/test/resources/org/apidesign/bck2brwsr/htmlpage/TestPage.xhtml
--- a/htmlpage/src/test/resources/org/apidesign/bck2brwsr/htmlpage/TestPage.xhtml	Mon Sep 24 12:39:21 2012 +0200
+++ b/htmlpage/src/test/resources/org/apidesign/bck2brwsr/htmlpage/TestPage.xhtml	Mon Sep 24 15:06:43 2012 +0200
@@ -1,4 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Java 4 Browser Bytecode Translator
+    Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, version 2 of the License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program. Look for COPYING file in the top folder.
+    If not, see http://opensource.org/licenses/GPL-2.0.
+
+-->
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml">
     <head>
diff -r e214f04abb98 -r 03e4aaa4ef3d pom.xml
--- a/pom.xml	Mon Sep 24 12:39:21 2012 +0200
+++ b/pom.xml	Mon Sep 24 15:06:43 2012 +0200
@@ -61,6 +61,13 @@
           <version>RELEASE72</version>
           <type>jar</type>
         </dependency>
+        <dependency>
+          <groupId>org.netbeans.api</groupId>
+          <artifactId>org-openide-util-lookup</artifactId>
+          <version>RELEASE72</version>
+          <scope>compile</scope>
+          <type>jar</type>
+        </dependency>
       </dependencies>
   </dependencyManagement>
   <properties>