/*
 * Copyright 2011 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.web.bindery.requestfactory.gwt.client.impl;

import com.google.gwt.editor.client.Editor;
import com.google.gwt.editor.client.EditorContext;
import com.google.web.bindery.requestfactory.gwt.client.HasRequestContext;
import com.google.web.bindery.requestfactory.shared.RequestContext;

/**
 * Extension of standard Editor Initializer that provides the current
 * RequestContext.
 */
class Initializer extends com.google.gwt.editor.client.impl.Initializer {

  private final RequestContext request;

  public Initializer(RequestContext request) {
    this.request = request;
  }

  @Override
  public <T> boolean visit(EditorContext<T> ctx) {
    RequestFactoryEditorDelegate<?, ?> delegate =
        (RequestFactoryEditorDelegate<?, ?>) ctx.getEditorDelegate();
    if (delegate != null) {
      delegate.setRequestContext(request);
    }
    Editor<T> editor = ctx.getEditor();
    if (editor instanceof HasRequestContext) {
      ((HasRequestContext<T>) editor).setRequestContext(request);
    }

    return super.visit(ctx);
  }
}
