jan@866: /**
jan@866:  * Back 2 Browser Bytecode Translator
jan@866:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jan@866:  *
jan@866:  * This program is free software: you can redistribute it and/or modify
jan@866:  * it under the terms of the GNU General Public License as published by
jan@866:  * the Free Software Foundation, version 2 of the License.
jan@866:  *
jan@866:  * This program is distributed in the hope that it will be useful,
jan@866:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jan@866:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jan@866:  * GNU General Public License for more details.
jan@866:  *
jan@866:  * You should have received a copy of the GNU General Public License
jan@866:  * along with this program. Look for COPYING file in the top folder.
jan@866:  * If not, see http://opensource.org/licenses/GPL-2.0.
jan@866:  */
jan@866: package org.apidesign.bck2brwsr.htmlpage;
jan@866: 
jan@866: import java.io.IOException;
jan@866: import java.io.Writer;
jan@866: import java.util.HashMap;
jan@866: import java.util.Map;
jan@866: 
jan@866: /**
jan@866:  *
jan@866:  * @author Jan Horvath <jhorvath@netbeans.org>
jan@866:  */
jan@866: public class PredefinedFields {
jan@866:     
jan@866:     private static final Map<String, String> IMPORTS = new HashMap<String, String>() {
jan@866:         {
jan@866:             put("canvas", "import org.apidesign.bck2brwsr.core.JavaScriptBody;");
jan@866:         }
jan@866:     };
jan@866:     
jan@866:     private static final Map<String, String> FIELDS = new HashMap<String, String>() {
jan@866:         {
jan@866:             put("canvas", 
jan@866:                     "    @JavaScriptBody(\n" +
jan@866:                     "            args = {\"el\"},\n" +
jan@866:                     "            body = \"var e = window.document.getElementById(el._id());\\n\"\n" +
jan@866:                     "            + \"return e.getContext('2d');\\n\")\n" +
jan@866:                     "    private native static Object getContextImpl(Canvas el);\n" +
jan@866:                     "    \n" +
jan@866:                     "    public GraphicsContext getContext() {\n" +
jan@866:                     "        return new GraphicsContext(getContextImpl(this));\n" +
jan@866:                     "    }");
jan@866:         }
jan@866:     };
jan@866:     
jan@866:     static void appendImports(Writer w, String tag) throws IOException {
jan@866:         String text = IMPORTS.get(tag.toLowerCase());
jan@866:         if (text != null) {
jan@866:             w.append(text).append("\n");
jan@866:         }
jan@866:     }
jan@866:     
jan@866:     static void appendFields(Writer w, String tag) throws IOException {
jan@866:         String text = FIELDS.get(tag.toLowerCase());
jan@866:         if (text != null) {
jan@866:             w.append(text).append("\n");
jan@866:         }
jan@866:     }
jan@866: }