/*
    * Copyright 2000-2013 Vaadin Ltd.
    * 
    * 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.vaadin.client.ui.upload;
  
  import com.vaadin.client.ApplicationConnection;
  import com.vaadin.client.Paintable;
  import com.vaadin.client.UIDL;
  import com.vaadin.client.ui.AbstractComponentConnector;
  import com.vaadin.client.ui.VUpload;
  import com.vaadin.shared.ui.Connect;
  import com.vaadin.ui.Upload;
  
  @Connect(Upload.class)
  public class UploadConnector extends AbstractComponentConnector implements
          Paintable {
  
      @Override
      public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
          if (!isRealUpdate(uidl)) {
              return;
          }
          if (uidl.hasAttribute("notStarted")) {
              getWidget().t.schedule(400);
              return;
          }
          if (uidl.hasAttribute("forceSubmit")) {
              getWidget().submit();
              return;
          }
          getWidget().setImmediate(getState().immediate);
          getWidget().client = client;
          getWidget().paintableId = uidl.getId();
          getWidget().nextUploadId = uidl.getIntAttribute("nextid");
          final String action = client.translateVaadinUri(uidl
                  .getStringVariable("action"));
          getWidget().element.setAction(action);
          if (uidl.hasAttribute("buttoncaption")) {
              getWidget().submitButton.setText(uidl
                      .getStringAttribute("buttoncaption"));
              getWidget().submitButton.setVisible(true);
          } else {
              getWidget().submitButton.setVisible(false);
          }
          getWidget().fu.setName(getWidget().paintableId + "_file");
  
          if (!isEnabled() || isReadOnly()) {
              getWidget().disableUpload();
          } else if (!uidl.getBooleanAttribute("state")) {
              // Enable the button only if an upload is not in progress
              getWidget().enableUpload();
              getWidget().ensureTargetFrame();
          }
      }
  
      @Override
      public VUpload getWidget() {
          return (VUpload) super.getWidget();
      }
  }