user/src/com/google/gwt/uibinder/rebind/BundleWriter.java

/*
 * Copyright 2009 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.uibinder.rebind;

import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.gwt.resources.client.ClientBundle;
import com.google.gwt.resources.client.CssResource.Strict;
import com.google.gwt.uibinder.rebind.model.ImplicitBundle;
import com.google.gwt.uibinder.rebind.model.CssResourceGetter;

import java.io.PrintWriter;

/**
 * Writes source implementing a {@link ImplicitBundle} to a {@link PrintWriter}.
 */
public class BundleWriter {

  private final ImplicitBundle bundleClass;
  private final IndentedWriter writer;
  private final TypeOracle oracle;

  public BundleWriter(ImplicitBundle bundleClass, PrintWriter printWriter,
      TypeOracle oracle) {
    this.bundleClass = bundleClass;
    this.writer = new IndentedWriter(printWriter);
    this.oracle = oracle;
  }

  public void write() {
    // Package declaration
    String packageName = bundleClass.getPackageName();
    if (packageName.length() > 0) {
      writer.write("package %1$s;", packageName);
      writer.newline();
    }

    // Imports
    writer.write("import %s;",
        oracle.findType(ClientBundle.class.getName()).getQualifiedSourceName());
    writer.write("import %s;",
        oracle.findType(Strict.class.getCanonicalName()).getQualifiedSourceName());
    writer.newline();

    // Open interface
    writer.write("public interface %s extends ClientBundle {",
        bundleClass.getClassName());
    writer.indent();

    // Write css methods
    for (CssResourceGetter css : bundleClass.getCssMethods()) {
      writer.write("@Strict @Source(\"%s\")",css.getSource());
      writer.write("%s %s();", css.getExtendedInterface().getQualifiedSourceName(), css.getName());
      writer.newline();
    }

    // Close interface.
    writer.outdent();
    writer.write("}");
  }
}